Hp laserjet 700 m712 ошибки

The most common error codes.

Error
59.00.40 Display: 59.00.40 Error
41.05.YZ Display: 41.05.YZ Unexpected type in Tray
52.00.00 Display: 52.00.00 Error
69.11.YY Display: 69.11.YY Error
59.05.50 Display: 59.05.50 Error
59.00.40 Display: 59.00.40 Error
41.05.YZ Display: 41.05.YZ Unexpected type in Tray
52.00.00 Display: 52.00.00 Error
69.11.YY Display: 69.11.YY Error
59.05.50 Display: 59.05.50 Error

Окончание поддержки: драйверы для принтеров в Windows 7, 8, 8.1, Server 2008, 2008R2.

HP больше не поддерживает эти драйверы принтеров с 1 ноября 2022 г. HP рекомендует обновить операционную систему до поддерживаемой версии. Подробнее

background image

в.

Выберите Печать или Вид.

г.

Найдите IP-адрес или имя хоста на странице Jetdirect.

2.

В адресной строке поддерживаемого веб-браузера, установленного на используемом
компьютере, введите IP-адрес устройства или имя хоста.

Функции встроенного веб-сервера HP

Вкладка Информация

Таблица 6-1

  Встроенный веб-сервер HP, вкладка Информация

Меню

Описание

Состояние устройства

Отображает состояние устройства и остаток расходных материалов HP. На
этой странице также отображается тип и формат бумаги для каждого лотка.
Чтобы изменить параметры по умолчанию, щелкните ссылку Изменить
настройки
.

Журнал заданий

Вывод на экран сводки всех заданий, обработанных устройством.

Страница конфигурации

Отображает информацию, находящуюся на странице конфигурации.

Страница состояния расходных
материалов

Отображает состояние расходных материалов устройства.

Страница журнала событий

Содержит список всех событий и ошибок устройства. Щелкните ссылку
HP Instant Support (расположенную в разделе Прочие ссылки на каждой
странице встроенного веб-сервера HP), чтобы перейти к группе
динамических веб-страниц с информацией об устранении неполадок. На
этих страницах также отображаются дополнительные службы, доступные
для данного устройства.

Страница расхода

Отображает сводную информацию о количестве страниц, отпечатанных
устройством и сгруппированных по формату, типу и тракту прохождения
бумаги.

Информация об устройстве

Содержит сетевое имя, адрес и модель устройства. Чтобы настроить эти
параметры, откройте меню Информация об устройстве на вкладке Общие.

Панель управления

Показывает изображение экрана, открытого на панели управления.

Печать

Загрузите с компьютера файл, готовый к печати. При печати файла
устройство использует настройки по умолчанию.

Отчеты и страницы для печати

Содержит список внутренних отчетов и страниц устройства, которые можно
просмотреть или распечатать.

Вкладка Общие

Таблица 6-2

  Встроенный веб-сервер HP, вкладка Общие

Меню

Описание

Настройка панели управления

Изменение порядка, скрытие и показ элементов панели управления и
изменение языка по умолчанию.

RUWW

Встроенный веб-сервер HP

115

background image

Контрольный список устранения неполадок

Для устранения неисправностей устройства, следуйте приведенным ниже инструкциям.

1.

Если отображается пустая или черная панель управления, выполните следующие
действия.

а.

Проверьте кабель питания.

б.

Проверьте, включено ли питание устройства.

в.

Убедитесь, что линейное напряжение соответствует настройкам устройства.
(требования к напряжению см. на этикетке на задней панели изделия) В случае
использования сетевого фильтра при напряжении, не соответствующем
характеристикам, вставьте вилку шнура питания устройства непосредственно в
стенную розетку. Если оно уже включено в стенную розетку, попробуйте
воспользоваться другой розеткой.

г.

Если ни одно из этих действий не поможет восстановить электропитание, обратитесь
в службу поддержки клиентов HP.

2.

На панели управления должно отображаться состояние Готов.. При появлении
сообщения об ошибке устраните ее.

3.

Проверьте кабельные соединения.

а.

Проверьте кабельное соединение между устройством и компьютером или сетевым
портом. Проверьте надежность соединения.

б.

Проверьте исправность кабеля, заменив его другим, если это возможно.

в.

Проверьте сетевое соединение.

4.

Проверьте, что указанные формат и тип бумаги соответствуют техническим
характеристикам. Кроме того, откройте меню Лотки. на панели управления устройством и
убедитесь, что лоток настроен правильно для выбранного типа и формата бумаги.

5.

Распечатайте страницу конфигурации. Если устройство подключено к сети, будет также
распечатана страница HP Jetdirect .

а.

На панели управления нажмите кнопку Главный экран .

б.

Откройте следующие меню:

Администрирование

Отчеты

Страницы конфигурации/состояния

в.

Выберите параметр Страница конфигурации.

г.

Выберите пункт Печать и нажмите кнопку ОК, чтобы напечатать страницу.

Если эти страницы не распечатаются, проверьте, содержит ли хотя бы один лоток бумагу.

130

Глава 7 Решение проблем

RUWW

LASERJET ENTERPRISE 700

Troubleshooting Manual

2

3

M712

HP LaserJet Enterprise 700 M712

Troubleshooting Manual

Copyright and License

© 2013 Copyright Hewlett-Packard

Development Company, L.P.

Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws.

The information contained herein is subject to change without notice.

The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

Part number: CF235-90963

Edition 2, 01/2013

Trademark Credits

Adobe®, Adobe Photoshop®, Acrobat®, and PostScript® are trademarks of Adobe Systems Incorporated.

Apple and the Apple logo are trademarks of Apple Computer, Inc., registered in the U.S. and other countries. iPod is a trademark of Apple Computer, Inc. iPod is for legal or rightholder-authorized copying only. Don’t steal music.

Microsoft®, Windows®, Windows® XP, and Windows Vista® are U.S. registered trademarks of Microsoft Corporation.

UNIX® is a registered trademark of The Open Group.

Conventions used in this guide

TIP: Tips provide helpful hints or shortcuts.

NOTE: Notes provide important information to explain a concept or to complete a task.

CAUTION: Cautions indicate procedures that you should follow to avoid losing data or damaging the product.

WARNING! Warnings alert you to specific procedures that you should follow to avoid personal injury, catastrophic loss of data, or extensive damage to the product.

Table of contents

1 Theory of operation …………………………………………………………………………………………….

1

Basic operation …………………………………………………………………………………………………………

2

Function structure …………………………………………………………………………………………

2

Operation sequence ……………………………………………………………………………………..

2

Engine control system …………………………………………………………………………………………………

4

DC controller PCA ………………………………………………………………………………………..

5

Motor control …………………………………………………………………………………

6

Motor locations …………………………………………………………………

7

Failure detection ……………………………………………………………….

7

Fan control ……………………………………………………………………………………

8

Fan locations ……………………………………………………………………

9

Failure detection ……………………………………………………………….

9

Low-voltage power-supply PCA ………………………………………………………………………

10

Over-current/over-voltage/overload protection ……………………………………..

11

Safety interruption …………………………………………………………………………

11

Power supply voltage detection …………………………………………………………

11

Sleep mode …………………………………………………………………………………

12

Power supply illumination control ………………………………………………………

12

High-voltage power-supply PCA ……………………………………………………………………..

13

Fuser control ……………………………………………………………………………………………..

15

Fuser temperature control ………………………………………………………………..

17

Fuser heater protective function …………………………………………………………

17

Fuser failure detection …………………………………………………………………….

18

Pressure roller cleaning …………………………………………………………………..

19

Laser scanner system ………………………………………………………………………………………………..

20

Laser scanner failure detection ……………………………………………………………………….

21

Laser scanner safety function …………………………………………………………………………

21

Image-formation system ……………………………………………………………………………………………..

22

Image-formation process ………………………………………………………………………………

23

Latent-image formation block ……………………………………………………………

24

Step 1: primary charging …………………………………………………..

24

Step 2: laser-beam exposure ……………………………………………….

25

Development block ………………………………………………………………………..

25

Step 3: developing …………………………………………………………..

25

Transfer block ………………………………………………………………………………

26

Step 4: image transfer ………………………………………………………

26

Step 5: separation from the drum …………………………………………

26

Fuser block ………………………………………………………………………………….

27

Step 6: fusing …………………………………………………………………

27

Drum-cleaning block ………………………………………………………………………

27

Step 7: drum cleaning ………………………………………………………

27

Toner cartridge ………………………………………………………………………………………….

27

Other image-formation functions …………………………………………………………………….

29

Drum discharge ……………………………………………………………………………

29

Transfer roller cleaning …………………………………………………………………..

29

Environment change control ……………………………………………………………..

30

Pickup, feed, and delivery system …………………………………………………………………………………

31

Pickup and feed block …………………………………………………………………………………

34

Cassette pickup …………………………………………………………………………….

35

Cassette media-size detection and cassette-presence detection …………………..

35

Cassette lift operation …………………………………………………………………….

36

Lift-up operation ………………………………………………………………

36

Lift-down operation …………………………………………………………..

36

Cassette media-presence detection …………………………………………………….

37

Cassette multiple-feed prevention ……………………………………………………….

37

MP tray pickup …………………………………………………………………………….

39

MP tray media-presence detection ……………………………………………………..

39

MP tray multiple-feed prevention ……………………………………………………….

40

Feed-speed control ………………………………………………………………………..

40

Skew-feed prevention ……………………………………………………………………..

42

Media-length detection …………………………………………………………………..

43

Fuse and delivery block ……………………………………………………………………………….

44

Loop control ………………………………………………………………………………..

44

Output bin media-full detection …………………………………………………………

46

Jam detection ……………………………………………………………………………………………

47

No pick jam 1 ……………………………………………………………………………..

47

Feed stay jam 1 ……………………………………………………………………………

48

Fuser output delay jam 1 …………………………………………………………………

48

Fuser output stay jam 1 …………………………………………………………………..

48

Output delay jam 1 ……………………………………………………………………….

48

Output delay jam 2 ……………………………………………………………………….

48

Output stay jam 1 …………………………………………………………………………

48

Residual paper jam 1 …………………………………………………………………….

49

Fuser wrap jam 1 ………………………………………………………………………….

49

Door open jam 1 ………………………………………………………………………….

49

Multiple-feed jam 1 ……………………………………………………………………….

49

Automatic delivery ……………………………………………………………………………………..

49

500-sheet paper feeder (Tray 4) ………………………………………………………………………………….

50

500-sheet paper feeder motor control ………………………………………………………………

51

500-sheet paper feeder failure detection ……………………………………………..

51

500-sheet paper feeder pickup and feed operation ……………………………………………..

52

500-sheet paper feeder cassette pickup ………………………………………………

53

500-sheet paper feeder cassette media-size detection and cassette-presence

detection …………………………………………………………………………………….

53

500-sheet paper feeder lift-up operation ……………………………………………..

54

500-sheet paper feeder cassette media-presence detection ……………………….

55

500-sheet paper feeder cassette multiple-feed prevention …………………………

55

500-sheet paper feeder jam detection ……………………………………………………………..

56

No pick jam 2 ……………………………………………………………………………..

56

Residual paper jam 1 …………………………………………………………………….

56

Door open jam 1 ………………………………………………………………………….

57

500-sheet paper feeder automatic delivery ………………………………………………………..

57

1×500 and 3×500 paper feeder and stand ……………………………………………………………………

58

Paper deck motor control ……………………………………………………………………………..

61

Paper deck failure detection …………………………………………………………….

61

Paper deck pickup-and-feed operation ……………………………………………………………..

61

Paper deck cassette media-size detection and cassette-presence detection …….

63

Paper deck lift-up operation ……………………………………………………………..

64

Paper deck cassette media-presence detection ………………………………………

65

Paper deck jam detection ……………………………………………………………………………..

65

No pick jam 2 ……………………………………………………………………………..

65

No pick jam 3 (3×500-sheet paper deck only) ………………………………………

66

Residual paper jam 1 …………………………………………………………………….

66

Door open jam 1 ………………………………………………………………………….

66

Paper deck automatic delivery ……………………………………………………………………….

66

3,500-sheet high-capacity input (HCI) feeder …………………………………………………………………..

67

HCI motor control ……………………………………………………………………………………….

69

HCI failure detection ………………………………………………………………………

69

HCI pickup-and-feed operation ………………………………………………………………………

70

HCI cassette media-size detection and cassette-presence detection ……………..

71

HCI lift-up operation ………………………………………………………………………

72

HCI cassette media-presence detection ……………………………………………….

72

HCI jam detection ………………………………………………………………………………………

74

No pick jam 2 ……………………………………………………………………………..

74

No pick jam 3 ……………………………………………………………………………..

74

Residual paper jam 1 …………………………………………………………………….

75

Door open jam 1 ………………………………………………………………………….

75

HCI automatic delivery ………………………………………………………………………………..

75

Duplexer ……………………………………………………………………………………………………………….

76

Duplexer motor control ………………………………………………………………………………..

77

Duplexer motor failure detection ………………………………………………………..

77

Duplexer fan control ……………………………………………………………………………………

78

Duplexer fan failure detection …………………………………………………………..

78

Duplexer reverse and feed operation ……………………………………………………………….

78

Duplexer reverse and feed operation sequence ……………………………………..

79

Side misregistration detection …………………………………………………………..

80

Side misregistration failure detection ……………………………………..

82

Duplexer jam detection ………………………………………………………………………………..

82

Fuser output stay jam 2 …………………………………………………………………..

82

Reverse jam 1 ………………………………………………………………………………

83

Duplex re-pickup jam 1 …………………………………………………………………..

83

Duplex re-pickup jam 2 …………………………………………………………………..

83

Duplex re-pickup jam 3 …………………………………………………………………..

83

Residual paper jam 1 …………………………………………………………………….

83

Duplexer automatic delivery ………………………………………………………………………….

83

2 Solve problems …………………………………………………………………………………………………

85

Solve problems checklist ……………………………………………………………………………………………

86

Menu map …………………………………………………………………………………………………………….

88

Preboot menu options ……………………………………………………………………………………………….

89

Current settings pages ………………………………………………………………………………………………

97

Troubleshooting process …………………………………………………………………………………………….

98

Determine the problem source ………………………………………………………………………..

98

Troubleshooting flowchart ……………………………………………………………….

98

Power subsystem ………………………………………………………………………………………..

99

Power-on checks …………………………………………………………………………..

99

Power-on troubleshooting overview ……………………………………….

99

Tools for troubleshooting ………………………………………………………………………………………….

101

Individual component diagnostics ………………………………………………………………….

101

LED diagnostics …………………………………………………………………………..

101

Understand lights on the formatter ………………………………………

101

Engine diagnostics ………………………………………………………………………

104

Engine-test button …………………………………………………………..

104

Paper path test ……………………………………………………………………………

106

Paper path sensor tests …………………………………………………………………

106

Manual sensor tests ……………………………………………………………………..

108

Cartridge door switch (SW3) …………………………………………….

110

Left door switch (SW1) …………………………………………………….

111

Right door sensor (SR8) ……………………………………………………

112

Cartridge install sensor (SR1) …………………………………………….

113

Top (top-of-page) sensor (SR9) …………………………………………..

114

Fuser loop sensor (SR6) ……………………………………………………

115

Fuser output sensor (SR12) ……………………………………………….

116

Duplex switchback sensor (SR1) …………………………………………

117

Duplexer refeed sensor (SR2) …………………………………………….

118

Tray 4 feed sensor (SR1) ………………………………………………….

119

Output sensor (SR3) ………………………………………………………..

120

Tray/bin manual sensor tests ………………………………………………………….

121

Main product trays …………………………………………………………

123

Optional 500-sheet paper tray (Tray 4) ………………………………..

131

1×500 and 3×500 paper deck trays …………………………………..

136

HCI trays ……………………………………………………………………..

138

Print/stop test …………………………………………………………………………….

144

Component tests ………………………………………………………………………….

145

Control-panel tests ………………………………………………………….

145

Half self-test ………………………………………………………………….

145

Drum rotation test check …………………………………………………..

146

Component test (special-mode test) ……………………………………..

146

Diagrams ……………………………………………………………………………………………….

148

Block diagrams …………………………………………………………………………..

148

Location of connectors ………………………………………………………………….

153

DC controller connections …………………………………………………

153

Plug/jack locations ………………………………………………………………………

155

Locations of major components ……………………………………………………….

156

General timing charts …………………………………………………………………..

171

Circuit diagrams …………………………………………………………………………

172

Internal test pages …………………………………………………………………………………….

174

Clean the paper path …………………………………………………………………..

174

Set up an auto cleaning page ……………………………………………

174

Print a configuration page ……………………………………………………………..

175

Configuration page ………………………………………………………..

175

HP embedded Jetdirect page …………………………………………….

176

Finding important information on the configuration pages …………

177

Control panel menus ………………………………………………………………………………….

178

Administration menu …………………………………………………………………….

178

Reports menu ………………………………………………………………..

178

General Settings menu …………………………………………………….

179

General Print Settings menu ………………………………………………

185

Default Print Options menu ……………………………………………….

188

Display Settings menu ……………………………………………………..

189

Manage Supplies menu …………………………………………………..

191

Manage Trays menu ……………………………………………………….

192

Network Settings menu ……………………………………………………

194

Troubleshooting menu ……………………………………………………..

208

Device Maintenance menu …………………………………………………………….

210

Backup/Restore menu ……………………………………………………..

210

Calibration/Cleaning menu ………………………………………………

211

USB Firmware Upgrade menu ……………………………………………

212

Service menu ………………………………………………………………..

212

Interpret control-panel messages …………………………………………………………………..

213

Control-panel message types ………………………………………………………….

213

Control-panel messages ………………………………………………………………..

213

11.00.YY Internal clock error To continue, touch “OK” …………….

213

20.00.00 Insufficient memory: <Device> To continue, touch “OK” 213

21.00.00 Page too complex To continue, touch “OK” ……………..

214

33.WX.YZ Used board/disk installed ………………………………….

214

40.00.01 USB I/O buffer overflow To continue, touch “OK” ……..

214

40.00.02 Embedded I/O buffer overflow To continue, touch “OK” 214

40.00.03 EIO <X> buffer overflow To continue, touch “OK” ……..

214

40.00.04 EIO <X> bad transmission To continue, touch “OK” …..

215

40.00.05 Embedded I/O bad transmission To continue, touch

“OK” ………………………………………………………………………….

215

41.03.YZ Unexpected size in Tray <X> ……………………………….

215

41.03.YZ Unexpected size in Tray <X> To use another tray, touch

«Options» …………………………………………………………………….

216

41.05.YZ Unexpected type in Tray <X> ……………………………….

216

41.05.YZ Unexpected type in Tray <X> To use another tray,

touch «Options» …………………………………………………………….

217

41.WX.YZ Error To use another tray, touch «Options» ……………..

218

47.FC.YZ Printer calibration failed To continue, touch “OK” ………

220

47.WX.YZ Printer calibration failed …………………………………….

221

49.XX.YY Error To continue turn off then on …………………………..

221

50.WX.YZ Fuser error To continue turn off then on ………………….

221

51.00.YY Error To continue turn off then on …………………………..

225

52.00.00 Error To continue turn off then on ………………………….

225

52.00.20 Error To continue turn off then on ………………………….

226

52.<XX>.00 Error To continue turn off then on ……………………….

226

54.XX.YY Error ……………………………………………………………..

226

55.XX.YY DC controller error To continue turn off then on …………

227

56.00.YY Error To continue turn off then on …………………………..

227

57.00.0X Error ……………………………………………………………..

228

58.00.04 Error To continue turn off then on ………………………….

228

59.00.00 Error To continue turn off then on ………………………….

228

59.00.20 Error To continue turn off then on ………………………….

229

59.00.30 Error To continue turn off then on ………………………….

229

59.00.40 Error To continue turn off then on ………………………….

229

59.05.50 Error To continue turn off then on ………………………….

229

59.05.60 Error To continue turn off then on ………………………….

230

60.00.0Y Tray <Y> lifting error …………………………………………

230

62.00.00 No system To continue turn off then on ……………………

230

69.11.YY Error To continue, touch “OK” ………………………………

231

70.00.00 Error To continue turn off then on ………………………….

231

81.WX.YZ Embedded JetDirect Error To continue turn off then on . .

231

81.YY.YY EIO Error To continue turn off then on …………………….

232

98.00.0X Corrupt data in X volume …………………………………….

232

<Binname> full Remove all paper from bin ……………………………

232

Bad optional tray connection …………………………………………….

233

Black Cartridge low ………………………………………………………..

233

Black Cartridge very low ………………………………………………….

233

Black Cartridge very low To continue, touch “OK” ………………….

233

Card slot device failure To clear touch “Clear” ………………………

234

Card slot file operation failed To clear touch “Clear” ……………….

234

Card slot file system is full To clear touch “Clear” ……………………

234

Card slot is write protected To clear touch “Clear” ………………….

234

Card slot not initialized To clear touch “Clear” ………………………

234

Cartridge ship mode ……………………………………………………….

235

Chosen personality not available To continue, touch “OK” ………..

235

Cleaning disk <X>% complete Do not power off …………………….

235

Close left door ………………………………………………………………

235

Close top cover ……………………………………………………………..

236

Data received ……………………………………………………………….

236

Disk full Delete stored jobs ………………………………………………..

236

Disk low Delete stored jobs ……………………………………………….

236

EIO <X> disk not functional ………………………………………………

237

EIO <X> disk spinning up …………………………………………………

237

EIO device failure To clear touch “Clear” ……………………………..

237

EIO file operation failed To clear touch “Clear” ……………………..

237

EIO file system is full To clear touch “Clear” ………………………….

237

EIO is write protected To clear touch “Clear” …………………………

238

EIO not initialized To clear touch “Clear” ……………………………..

238

Event log is empty ………………………………………………………….

238

Fuser Kit Low ………………………………………………………………..

238

Fuser Kit very low …………………………………………………………..

238

Fuser Kit very low To continue, touch “OK” …………………………..

239

Incompatible <supply> …………………………………………………….

239

Incompatible supplies ……………………………………………………..

239

Initializing… …………………………………………………………………

240

Install Black Cartridge ……………………………………………………..

240

Install Fuser Unit …………………………………………………………….

240

Install supplies ………………………………………………………………

240

Internal disk device failure To clear touch “Clear” …………………..

240

Internal disk file operation failed To clear touch “Clear” ……………

241

Internal disk file system is full To clear touch “Clear” ………………..

241

Internal disk is write protected To clear touch “Clear” ………………

241

Internal disk not found …………………………………………………….

241

Internal disk not functional ………………………………………………..

241

Internal disk not initialized To clear touch “Clear” …………………..

242

Internal disk spinning up ………………………………………………….

242

Load Tray 1 [Type] [Size] …………………………………………………

242

Load Tray 1 [Type] [Size] To continue, touch “OK” ………………….

242

Load Tray <X>: [Size] ……………………………………………………..

242

Load Tray <X>: [Size] To continue, touch “OK” ……………………..

243

Load Tray <X>: [Size] To use another tray, touch «Options» ………

243

Load Tray <X>: [Type], [Size] ……………………………………………

243

Load Tray <X>: [Type], [Size] To use another tray, touch

«Options» …………………………………………………………………….

244

Manually feed output stack Then touch «OK» to print second sides

244

Manually feed: [Size] ……………………………………………………..

245

Manually feed: [Size] To continue, touch “OK” ………………………

245

Manually feed: [Size] To use another tray, touch «Options» ……….

245

Manually feed: [Type], [Size] To continue, touch “OK” …………….

246

Manually feed: [Type], [Size] To use another tray, touch

«Options» …………………………………………………………………….

246

No job to cancel ……………………………………………………………

246

Output Bin full ……………………………………………………………….

246

Paperless mode ……………………………………………………………..

247

Printing Engine Test… ……………………………………………………..

247

Printing stopped To continue, touch “OK” ……………………………..

247

RAM Disk device failure To clear touch “Clear” ……………………..

247

RAM Disk file operation failed To clear touch “Clear” ………………

247

RAM Disk file system is full To clear touch “Clear” …………………..

248

RAM Disk is write protected To clear touch “Clear” …………………

248

RAM Disk not initialized To clear touch “Clear” ……………………..

248

Remove cartridge lock …………………………………………………….

248

Remove the toner cartridge ……………………………………………….

248

Replace Black Cartridge …………………………………………………..

249

Replace Fuser Kit ……………………………………………………………

249

Replace supplies ……………………………………………………………

249

ROM disk device failed To clear touch “Clear” ………………………

250

ROM disk file operation failed To clear touch “Clear” ………………

250

ROM disk file system is full To clear touch “Clear” …………………..

250

ROM disk is write protected To clear touch “Clear” …………………

250

ROM disk not initialized To clear touch “Clear” ……………………..

250

Size mismatch in Tray <X> ……………………………………………….

251

Standard bin full Remove all paper from bin ………………………….

251

Supplies low …………………………………………………………………

251

Supplies very low To continue, touch “OK” ……………………………

251

Supply memory warning ………………………………………………….

252

Tray <X> empty: [Size] ……………………………………………………

252

Tray <X> empty: [Type], [Size] ………………………………………….

252

Tray <X> open ………………………………………………………………

252

Tray <X> overfilled Remove excess paper …………………………….

253

Tray <X> overfilled To use another tray, touch «Options» ………….

253

Type mismatch Tray <X> ………………………………………………….

253

Unable to cancel firmware update job …………………………………

254

Unable to install the firmware ……………………………………………

254

Unsupported drive installed ………………………………………………

254

Unsupported supply in use ………………………………………………..

254

Unsupported supply installed …………………………………………….

255

Unsupported supply installed To continue, touch “OK” ……………..

255

Unsupported tray configuration ………………………………………….

255

Unsupported USB accessory detected Remove USB accessory …….

255

Upgrade complete To continue turn off then on ………………………

256

USB accessory needs too much power Remove USB and turn off

then on ……………………………………………………………………….

256

USB accessory not functional …………………………………………….

256

USB hubs are not fully supported Some operations may not work

properly ………………………………………………………………………

256

USB is write protected To clear touch “Clear” ………………………..

256

USB not initialized To clear touch “Clear” …………………………….

257

USB storage accessory removed Clearing any associated data …..

257

USB storage device failure To clear touch “Clear” …………………..

257

USB storage file operation failed To clear touch “Clear” …………..

257

USB storage file system is full To clear touch “Clear” ……………….

257

Used supply in use …………………………………………………………

257

Used supply installed To continue, touch “OK” ……………………….

258

Event log messages …………………………………………………………………………………..

259

Print or view an event log ………………………………………………………………

260

Clear an event log ……………………………………………………………………….

260

Event log message table ………………………………………………………………..

260

Clear jams …………………………………………………………………………………………………………..

263

Jam locations …………………………………………………………………………………………..

263

Auto-navigation for clearing jams ………………………………………………………………….

263

Clear jams in the output-bin area ………………………………………………………………….

264

Clear jams in Tray 1 ………………………………………………………………………………….

264

Clear jams in Tray 2 or Tray 3 ……………………………………………………………………..

265

Clear jams in the 500-sheet trays ………………………………………………………………….

267

Clear jams in the 3,500-sheet high-capacity tray ……………………………………………….

268

Clear jams from the toner-cartridge area …………………………………………………………

271

Clear jams in the fuser ……………………………………………………………………………….

274

Clear jams from the duplexer ……………………………………………………………………….

276

Solve paper-handling problems ………………………………………………………………………………….

277

The product picks up multiple sheets of paper …………………………………………………..

277

The product does not pick up paper ………………………………………………………………

277

Use manual print modes ………………………………………………………………………………………….

278

Print quality troubleshooting tools ……………………………………………………………………………….

280

Repetitive defects measurements ……………………………………………………………………

280

Solve image-quality problems ……………………………………………………………………………………

281

Image defect examples ………………………………………………………………………………

281

Clean the product ………………………………………………………………………………………………….

289

Print a cleaning page ………………………………………………………………………………..

289

Solve performance problems …………………………………………………………………………………….

290

Solve connectivity problems ………………………………………………………………………………………

291

Solve USB connection problems ……………………………………………………………………

291

Solve wired network problems ……………………………………………………………………..

291

The product has a poor physical connection. ………………………………………

291

The computer is using the incorrect IP address for the product ………………….

291

The computer is unable to communicate with the product ……………………….

292

The product is using incorrect link and duplex settings for the network ……….

292

New software programs might be causing compatibility problems …………….

292

The computer or workstation might be set up incorrectly …………………………

292

The product is disabled, or other network settings are incorrect ………………..

292

Service mode functions ……………………………………………………………………………………………

293

Service menu …………………………………………………………………………………………..

293

Product resets ………………………………………………………………………………………….

294

Restore factory-set defaults ……………………………………………………………..

294

Restore the service ID ……………………………………………………………………

294

Product cold reset ………………………………………………………………………..

295

Format Disk and Partial Clean functions ………………………………………………………….

296

Active and repository firmware locations ……………………………………………

296

Partial Clean ……………………………………………………………………………..

296

Execute a 3 Partial Clean …………………………………………………

297

Format Disk ……………………………………………………………………………….

297

Execute a 2 Format Disk …………………………………………………..

298

Product firmware upgrades ………………………………………………………………………………………

299

Determine the installed revision of firmware ……………………………………………………..

299

Perform a firmware upgrade ………………………………………………………………………..

299

Embedded Web Server …………………………………………………………………

299

USB storage device (Preboot menu) ………………………………………………….

300

USB storage device (control-panel menu) ……………………………………………

302

Appendix A Service and support ………………………………………………………………………….

303

Hewlett-Packard limited warranty statement …………………………………………………………………..

304

HP’s Premium Protection Warranty: LaserJet toner cartridge limited warranty statement ……………..

306

HP policy on non-HP supplies ……………………………………………………………………………………

307

HP anticounterfeit Web site ………………………………………………………………………………………

308

Data stored on the toner cartridge ………………………………………………………………………………

309

End User License Agreement ……………………………………………………………………………………..

310

OpenSSL ……………………………………………………………………………………………………………..

313

Customer self-repair warranty service ………………………………………………………………………….

314

Customer support …………………………………………………………………………………………………..

315

Appendix B Product specifications ………………………………………………………………………..

317

Physical specifications …………………………………………………………………………………………….

318

Power consumption, electrical specifications, and acoustic emissions ……………………………………

318

Environmental specifications ……………………………………………………………………………………..

318

Appendix C Regulatory information ………………………………………………………………………

319

FCC regulations …………………………………………………………………………………………………….

320

Environmental product stewardship program …………………………………………………………………

321

Protecting the environment …………………………………………………………………………..

321

Ozone production …………………………………………………………………………………….

321

Power consumption …………………………………………………………………………………..

321

Toner consumption ……………………………………………………………………………………

321

Paper use ……………………………………………………………………………………………….

321

Plastics …………………………………………………………………………………………………..

321

HP LaserJet print supplies ……………………………………………………………………………

322

Return and recycling instructions …………………………………………………………………..

322

United States and Puerto Rico …………………………………………………………

322

Multiple returns (more than one cartridge) …………………………….

322

Single returns ………………………………………………………………..

322

Shipping ……………………………………………………………………..

322

Non-U.S. returns …………………………………………………………………………

323

Paper ……………………………………………………………………………………………………

323

Material restrictions …………………………………………………………………………………..

323

Disposal of waste equipment by users …………………………………………………………….

324

Electronic hardware recycling ………………………………………………………………………

324

Chemical substances …………………………………………………………………………………

324

Material Safety Data Sheet (MSDS) ……………………………………………………………….

324

For more information …………………………………………………………………………………

324

Declaration of conformity …………………………………………………………………………………………

326

Safety statements …………………………………………………………………………………………………..

328

Laser safety …………………………………………………………………………………………….

328

Canadian DOC regulations …………………………………………………………………………

328

VCCI statement (Japan) ………………………………………………………………………………

328

Power cord instructions ………………………………………………………………………………

328

Power cord statement (Japan) ………………………………………………………………………

328

EMC statement (China) ………………………………………………………………………………

329

EMC statement (Korea) ………………………………………………………………………………

329

EMI statement (Taiwan) ………………………………………………………………………………

329

Laser statement for Finland ………………………………………………………………………….

329

GS statement (Germany) …………………………………………………………………………….

331

Substances Table (China) ……………………………………………………………………………

331

Restriction on Hazardous Substances statement (Turkey) ………………………………………

331

Restriction on Hazardous Substances statement (Ukraine) …………………………………….

331

Index ……………………………………………………………………………………………………………….

333

List of tables

Table 1-1 Operation sequence …………………………………………………………………………………………………

3

Table 1-2 Motor locations ……………………………………………………………………………………………………….

7

Table 1-3 Fan locations ………………………………………………………………………………………………………….

9

Table 1-4 Low voltage power supply DC power specifications …………………………………………………………

10

Table 1-5 Pickup, feed, and delivery system sensors and switches …………………………………………………….

32

Table 1-6 Pickup, feed, and delivery system solenoid and motors …………………………………………………….

33

Table 1-7 Media switch combinations ………………………………………………………………………………………

36

Table 1-8 500-sheet paper feeder electrical components ……………………………………………………………….

51

Table 1-9 500-sheet paper feeder motors ………………………………………………………………………………….

51

Table 1-10 500-sheet paper feeder pickup and feed components …………………………………………………….

52

Table 1-11 500-sheet paper feeder media switch combinations ……………………………………………………….

54

Table 1-12 Paper deck electrical components ……………………………………………………………………………..

59

Table 1-13 Paper deck motors ………………………………………………………………………………………………..

61

Table 1-14 Paper deck pickup-and-feed operation components ……………………………………………………….

62

Table 1-15 Paper deck media switch combinations ………………………………………………………………………

63

Table 1-16 HCI electrical components ………………………………………………………………………………………

68

Table 1-17 HCI motors …………………………………………………………………………………………………………

69

Table 1-18 HCI pickup-and-feed operation components …………………………………………………………………

70

Table 1-19 Duplexer electrical components ………………………………………………………………………………..

77

Table 1-20 Duplexer motor ……………………………………………………………………………………………………

77

Table 1-21 Duplexer fan ……………………………………………………………………………………………………….

78

Table 1-22 Duplexer reverse and feed components ………………………………………………………………………

79

Table 2-1 Preboot menu options (1 of 6) ……………………………………………………………………………………

90

Table 2-2 Preboot menu options (2 of 6) ……………………………………………………………………………………

92

Table 2-3 Preboot menu options (3 of 6) ……………………………………………………………………………………

93

Table 2-4 Preboot menu options (4 of 6) ……………………………………………………………………………………

94

Table 2-5 Preboot menu options (5 of 6) ……………………………………………………………………………………

94

Table 2-6 Preboot menu options (6 of 6) ……………………………………………………………………………………

95

Table 2-7 Troubleshooting flowchart …………………………………………………………………………………………

98

Table 2-8 Heartbeat LED, product initialization ………………………………………………………………………….

102

Table 2-9 Paper-path sensors ………………………………………………………………………………………………..

107

Table 2-10 Manual sensor tests …………………………………………………………………………………………….

108

Table 2-11 Tray/bin manual sensor test …………………………………………………………………………………..

121

Table 2-12 Component tests …………………………………………………………………………………………………

146

Table 2-13 Product cross section ……………………………………………………………………………………………

148

Table 2-14 Optional paper feeder (Tray 4) cross section ……………………………………………………………..

149

Table 2-15 1×500-sheet paper deck cross section ………………………………………………………………………

150

Table 2-16 3×500-sheet paper deck cross section ………………………………………………………………………

151

Table 2-17 3,500-sheet HCI cross section ………………………………………………………………………………..

152

Table 2-18 DC controller connections ……………………………………………………………………………………..

153

Table 2-19 Plug/jack locations ……………………………………………………………………………………………..

155

Table 2-20 External component locations …………………………………………………………………………………

156

Table 2-21 Major component locations (1 of 3) …………………………………………………………………………

157

Table 2-22 Major component locations (2 of 3) …………………………………………………………………………

158

Table 2-23 Major component locations (3 of 3) …………………………………………………………………………

158

Table 2-24 PCA locations ……………………………………………………………………………………………………

159

Table 2-25 Motor locations ………………………………………………………………………………………………….

160

Table 2-26 Fan locations …………………………………………………………………………………………………….

160

Table 2-27 Roller locations …………………………………………………………………………………………………..

161

Table 2-28 500-sheet feeder external component locations …………………………………………………………..

162

Table 2-29 500-sheet feeder internal component locations ……………………………………………………………

163

Table 2-30 1×500 paper deck external component locations ………………………………………………………..

164

Table 2-31 1×500 paper deck internal component locations …………………………………………………………

165

Table 2-32 3×500 paper deck external component locations ………………………………………………………..

166

Table 2-33 3×500 paper deck internal component locations …………………………………………………………

167

Table 2-34 HCI external component locations …………………………………………………………………………..

168

Table 2-35 HCI internal component locations (1 of 2) …………………………………………………………………

169

Table 2-36 HCI internal component locations (2 of 2) …………………………………………………………………

170

Table 2-37 Important information on the configuration pages ………………………………………………………..

177

Table 2-38 Reports menu ………………………………………………………………………………………………….

178

Table 2-39 General Settings menu …………………………………………………………………………………….

179

Table 2-40 General Print Settings menu …………………………………………………………………………….

186

Table 2-41 Default Print Options menu ………………………………………………………………………………

188

Table 2-42 Display Settings menu ……………………………………………………………………………………..

190

Table 2-43 Manage Supplies menu ……………………………………………………………………………………

191

Table 2-44 Manage Trays menu ………………………………………………………………………………………..

193

Table 2-45 Network Settings menu ……………………………………………………………………………………

195

Table 2-46 Jetdirect Menu ……………………………………………………………………………………………….

195

Table 2-47 Troubleshooting menu ……………………………………………………………………………………..

208

Table 2-48 Backup/Restore menu ……………………………………………………………………………………..

211

Table 2-49 Calibration/Cleaning menu ………………………………………………………………………………

211

Table 2-50 Print modes under the Adjust Paper Types sub menu ……………………………………………….

278

Table 2-51 MP modes under the Optimize submenu …………………………………………………………………

279

Table 2-52 Image defect examples ………………………………………………………………………………………..

281

Table 2-53 Solve performance problems ………………………………………………………………………………….

290

Table B-1 Product dimensions and weights ……………………………………………………………………………….

318

Table B-2 Product dimensions with all doors and trays fully opened ………………………………………………..

318

Table B-3 Operating-environment specifications …………………………………………………………………………

318

List of figures

Figure 1-1 Function structure …………………………………………………………………………………………………….

2

Figure 1-2 Engine control system ……………………………………………………………………………………………….

4

Figure 1-3 DC controller PCA …………………………………………………………………………………………………..

5

Figure 1-4 Motor locations ………………………………………………………………………………………………………

7

Figure 1-5 Fan locations …………………………………………………………………………………………………………

9

Figure 1-6 Low-voltage power-supply PCA …………………………………………………………………………………

10

Figure 1-7 High-voltage power-supply PCA ………………………………………………………………………………..

13

Figure 1-8 Fuser components ………………………………………………………………………………………………….

15

Figure 1-9 Fuser control system ……………………………………………………………………………………………….

16

Figure 1-10 Laser scanner system …………………………………………………………………………………………….

20

Figure 1-11 Image-formation system …………………………………………………………………………………………

22

Figure 1-12 Image-formation components ………………………………………………………………………………….

23

Figure 1-13 Image-formation process ……………………………………………………………………………………….

24

Figure 1-14 Primary charging …………………………………………………………………………………………………

24

Figure 1-15 Laser-beam exposure ……………………………………………………………………………………………

25

Figure 1-16 Developing ………………………………………………………………………………………………………..

25

Figure 1-17 Image transfer …………………………………………………………………………………………………….

26

Figure 1-18 Separation from the drum ………………………………………………………………………………………

26

Figure 1-19 Fusing ………………………………………………………………………………………………………………

27

Figure 1-20 Drum cleaning ……………………………………………………………………………………………………

27

Figure 1-21 Toner cartridge components ……………………………………………………………………………………

28

Figure 1-22 Drum discharge …………………………………………………………………………………………………..

29

Figure 1-23 Transfer roller cleaning …………………………………………………………………………………………

30

Figure 1-24 Pickup, feed, and delivery system …………………………………………………………………………….

31

Figure 1-25 Pickup, feed, and delivery system sensors and switches ………………………………………………….

32

Figure 1-26 Pickup, feed, and delivery-system solenoid and motors …………………………………………………..

33

Figure 1-27 Pickup and feed block …………………………………………………………………………………………..

34

Figure 1-28 Cassette pickup mechanism ……………………………………………………………………………………

35

Figure 1-29 Cassette lift operation …………………………………………………………………………………………..

37

Figure 1-30 Cassette multiple feed prevention …………………………………………………………………………….

38

Figure 1-31 MP tray pickup ……………………………………………………………………………………………………

39

Figure 1-32 MP tray multiple-feed prevention ………………………………………………………………………………

40

Figure 1-33 Skew-feed prevention ……………………………………………………………………………………………

42

Figure 1-34 Fuse and delivery block …………………………………………………………………………………………

44

Figure 1-35 Loop control ……………………………………………………………………………………………………….

45

Figure 1-36 Output bin media-full detection ………………………………………………………………………………..

46

Figure 1-37 Product engine jam detection sensors and switches ……………………………………………………….

47

Figure 1-38 500-sheet paper feeder paper path ………………………………………………………………………….

50

Figure 1-39 500-sheet paper feeder signal flow ………………………………………………………………………….

50

Figure 1-40 500-sheet paper feeder motor locations …………………………………………………………………….

51

Figure 1-41 500-sheet paper feeder pickup and feed components ……………………………………………………

52

Figure 1-42 500-sheet paper feeder pickup and feed cassette pickup ……………………………………………….

53

Figure 1-43 500-sheet paper feeder lift-up operation …………………………………………………………………….

54

Figure 1-44 500-sheet paper feeder multiple-feed prevention ………………………………………………………….

56

Figure 1-45 500-sheet paper feeder cassette jam detection sensor ……………………………………………………

56

Figure 1-46 Paper deck paper path …………………………………………………………………………………………

58

Figure 1-47 Paper deck signal flow ………………………………………………………………………………………….

59

Figure 1-48 Paper deck motors ……………………………………………………………………………………………….

61

Figure 1-49 Paper deck pickup and feed components …………………………………………………………………..

62

Figure 1-50 Paper deck lift-up operation ……………………………………………………………………………………

64

Figure 1-51 Paper deck jam detection sensors …………………………………………………………………………….

65

Figure 1-52 HCI paper path …………………………………………………………………………………………………..

67

Figure 1-53 HCI signal flow …………………………………………………………………………………………………..

68

Figure 1-54 HCI motors ………………………………………………………………………………………………………..

69

Figure 1-55 HCI pickup-and-feed operation ………………………………………………………………………………..

70

Figure 1-56 HCI lift-up operation …………………………………………………………………………………………….

72

Figure 1-57 HCI jam detection sensors ……………………………………………………………………………………..

74

Figure 1-58 Duplexer paper path …………………………………………………………………………………………….

76

Figure 1-59 Duplexer signal flow …………………………………………………………………………………………….

76

Figure 1-60 Duplexer motor …………………………………………………………………………………………………..

77

Figure 1-61 Duplexer fan ………………………………………………………………………………………………………

78

Figure 1-62 Duplexer reverse and feed operation ………………………………………………………………………..

79

Figure 1-63 Duplexer side misregistration detection ……………………………………………………………………..

81

Figure 1-64 Duplexer jam detection sensors ……………………………………………………………………………….

82

Figure 2-1 Locating the engine-test-page switch ………………………………………………………………………….

105

Figure 2-2 Test the cartridge door switch …………………………………………………………………………………

110

Figure 2-3 Test the left door switch …………………………………………………………………………………………

111

Figure 2-4 Test the top sensor ……………………………………………………………………………………………….

114

Figure 2-5 Fuser loop sensor ………………………………………………………………………………………………..

115

Figure 2-6 Fuser output sensor ………………………………………………………………………………………………

116

Figure 2-7 Duplex switchback sensor ………………………………………………………………………………………

117

Figure 2-8 Duplexer refeed sensor …………………………………………………………………………………………

118

Figure 2-9 Tray 4 feed sensor ……………………………………………………………………………………………….

119

Figure 2-10 Output sensor …………………………………………………………………………………………………..

120

Figure 2-11 Tray 1 paper sensor …………………………………………………………………………………………..

123

Figure 2-12 Tray 2 paper sensor …………………………………………………………………………………………..

124

Figure 2-13 Tray 2 paper surface sensor …………………………………………………………………………………

125

Figure 2-14 Tray 2 paper size switches …………………………………………………………………………………..

126

Figure 2-15 Tray 3 paper sensor …………………………………………………………………………………………..

127

Figure 2-16 Tray 3 paper surface sensor …………………………………………………………………………………

128

Figure 2-17 Tray 3 paper size switches …………………………………………………………………………………..

129

Figure 2-18 Output bin full sensor ………………………………………………………………………………………….

130

Figure 2-19 Tray 4 paper sensor …………………………………………………………………………………………..

131

Figure 2-20 Tray 4 paper surface sensor …………………………………………………………………………………

132

Figure 2-21 Tray 4 paper size switches …………………………………………………………………………………..

133

Figure 2-22 Tray 4 feed sensor ……………………………………………………………………………………………..

134

Figure 2-23 Lower right door sensor ……………………………………………………………………………………….

135

Figure 2-24 Test the Tray 4 door switch …………………………………………………………………………………..

136

Figure 2-25 Tray 4 paper sensor …………………………………………………………………………………………..

138

Figure 2-26 Tray 4 paper surface sensor …………………………………………………………………………………

139

Figure 2-27 Tray 4 paper size sensor ……………………………………………………………………………………..

139

Figure 2-28 Tray 4 paper feed sensor …………………………………………………………………………………….

140

Figure 2-29 Tray 4 door open sensor ……………………………………………………………………………………..

141

Figure 2-30 Tray 5 paper sensor …………………………………………………………………………………………..

141

Figure 2-31 Tray paper surface sensor ……………………………………………………………………………………

142

Figure 2-32 Tray 5 paper size sensor ……………………………………………………………………………………..

143

Figure 2-33 Tray 5 feed sensor ……………………………………………………………………………………………..

143

Figure 2-34 HCI exit sensor ………………………………………………………………………………………………….

144

Figure 2-35 Product cross section …………………………………………………………………………………………..

148

Figure 2-36 Optional paper feeder (Tray 4) cross section …………………………………………………………….

149

Figure 2-37 1×500-sheet paper deck cross section ……………………………………………………………………..

150

Figure 2-38 3×500-sheet paper deck cross section ……………………………………………………………………..

151

Figure 2-39 3,500-sheet HCI cross section ……………………………………………………………………………….

152

Figure 2-40 DC controller connections …………………………………………………………………………………….

153

Figure 2-41 External component locations ………………………………………………………………………………..

156

Figure 2-42 Major component locations (1 of 3) ………………………………………………………………………..

157

Figure 2-43 Major component locations (2 of 3) ………………………………………………………………………..

158

Figure 2-44 Major component locations (3 of 3) ………………………………………………………………………..

158

Figure 2-45 PCA locations …………………………………………………………………………………………………..

159

Figure 2-46 Motor locations …………………………………………………………………………………………………

160

Figure 2-47 Fan locations ……………………………………………………………………………………………………

160

Figure 2-48 Roller locations …………………………………………………………………………………………………

161

Figure 2-49 500-sheet feeder external component locations ………………………………………………………….

162

Figure 2-50 500-sheet feeder internal component locations …………………………………………………………..

163

Figure 2-51 1×500 paper deck external component locations ……………………………………………………….

164

Figure 2-52 1×500 paper deck internal component locations ………………………………………………………..

165

Figure 2-53 3×500 paper deck external component locations ……………………………………………………….

166

Figure 2-54 3×500 paper deck internal component locations ………………………………………………………..

167

Figure 2-55 HCI external component locations ………………………………………………………………………….

168

Figure 2-56 HCI internal component locations (1 of 2) ………………………………………………………………..

169

Figure 2-57 HCI internal component locations (2 of 2) ………………………………………………………………..

170

Figure 2-58 General timing chart …………………………………………………………………………………………..

171

Figure 2-59 General circuit diagram (1 of 2) ……………………………………………………………………………

172

Figure 2-60 General circuit diagram (2 of 2) ……………………………………………………………………………

173

Figure 2-61 Configuration page ……………………………………………………………………………………………

175

Figure 2-62 HP embedded Jetdirect page ………………………………………………………………………………..

176

Figure 2-63 Sample event log ………………………………………………………………………………………………

259

1 Theory of operation

Basic operation

Engine control system

Laser scanner system

Image-formation system

Pickup, feed, and delivery system

500-sheet paper feeder (Tray 4)

1×500 and 3×500 paper feeder and stand

3,500-sheet high-capacity input (HCI) feeder

Duplexer

Basic operation

Function structure

The product contains the following systems:

Engine control system

Laser scanner system

Image-formation system

Pickup, feed and delivery system

Accessory

Figure 1-1 Function structure

Laser scanner system

Image-formation system

Engine control system

Pickup, feed and delivery system

Accessory

Operation sequence

The DC controller in the engine-control system controls the operational sequences. The following table describes durations and operations for each period of a print operation from when the product is turned on until the motors stop rotating.

2

Chapter 1 Theory of operation

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Stops the high-voltage bias

Stops the laser scanner assembly

Stops the fuser heater

The product enters the INTR period as the LSTR period is complete if the formatter sends another print command.

Table 1-1 Operation sequence

Period

Duration

Purpose

WAIT period

From the time the power switch

Brings the product to the Ready state.

is turned on, the door is closed

Detects the failure of the low-voltage power supply

or product exits Sleep mode

until the product is ready for a

Detects the connection with the accessories

print operation.

Detects the presence of cartridge

Rotates and then stops each motor and fan

Checks the fuser temperature

Heats the fuser film

Detects any residual paper and clears it automatically

Initializes the high-voltage bias

Cleans the photosensitive drum

Detects the toner level

STBY (Standby period)

From the end of WAIT or LSTR

Maintains the product in printable condition.

period until either a print

Enters Sleep mode if the sleep command is received

command is sent or the power

switch is turned off.

Rotates and then stops each fan

INTR (Initial rotation)

From the time the print

Prepares the product for a print job.

command is received until the

Rotate the motors

product picks up the paper.

Rotate the fans

Outputs the high-voltage bias

Starts up the laser scanner assembly

Warms up the fuser heater

PRINT

From the end of the INTR

Processes the print job.

period until the last sheet is

Forms the image on the photosensitive drum

delivered.

Transfers toner to the paper

Fuses the toner image onto the paper

LSTR (Last rotation)

From the end of the PRINT

Stops each load.

period until the motor stops

Stops the motors and fans

rotating.

Engine control system

The engine-control system coordinates all the other systems, according to commands from the formatter. The engine-control system contains the following components:

DC controller PCA

Low-voltage power supply unit

High-voltage power supply PCA

Fuser control

Figure 1-2 Engine control system

Engine control system

Laser scanner system

DC controller

Image-formation system

Low-voltage power supply

Formatter

High-voltage power supply

Pickup, feed and delivery

system

Fuser control

Accessory

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Chapter 1 Theory of operation

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DC controller PCA

The DC controller PCA controls the product operation sequence.

Figure 1-3 DC controller PCA

AC input

Low-voltage power supply

Fuser

Transfer roller

High-voltage

power supply

Cartridge

DC controller

Control panel

USB PCA

Connector PCA

HIP

Formatter

The following table lists the product electrical components.

LED

Motor

Fan

Solenoid

Clutch

Photointerrupter

Sensor

Switch

Duplex unit (Accessory)

Input source accessory

Laser scanner

Component type

Component

Component name

abbreviation

Switch

SW1

Left door interlock switch

SW2

Cartridge door interlock switch

SW3

Cartridge door open detection switch

SW4

Upper cassette media width switch

SW5

Lower cassette media width switch

SW6

Upper cassette media end switch

SW7

Lower cassette media end switch

Power switch

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Engine control system

5

Component type

Component

Component name

abbreviation

Solenoid

SL1

Tray 1 (MP tray) pickup solenoid

Clutch

CL1

Upper cassette pickup clutch

CL2

Lower cassette pickup clutch

Fan

FM1

Rear fan

FM2

Front fan

FM3

Fuser fan

Photointerrupter

SR1

Cartridge presence sensor

SR2

MP tray media out sensor

SR3

Output sensor

SR4

Output bin media full sensor

SR5

Lower cassette media out sensor

SR6

Loop sensor

SR7

Upper cassette media out sensor

SR8

Right door sensor

SR9

TOP sensor

SR10

Upper cassette lift-up sensor

SR11

Lower cassette lift-up sensor

SR12

Fuser output sensor

Sensor

Environment sensor

Motor

M1

Drum motor

M2

Scanner motor

M3

Fuser motor

M4

Upper cassette lifter motor

M5

Lower cassette lifter motor

Motor control

The product has five motors for the paper-feed and image-formation.

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Chapter 1 Theory of operation

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Motor locations

The following figure shows the product motor locations.

Figure 1-4 Motor locations

M4

Table 1-2

Motor locations

Motor

Components driven by motor

M1

Drum motor

Photosensitive drum, transfer roller, registration roller, MP tray pickup roller, cassette

pickup roller, and feed roller

M2

Scanner motor

Laser scanner mirror

M3

Fuser motor

Pressure roller, fuser output roller, intermediate output roller and paper delivery roller

M4

Upper cassette lifter motor

Lifter for the upper cassette

M5

Lower cassette lifter motor

Lifter for the lower cassette

Failure detection

The DC controller monitors the following motors to determine a motor failure:

Drum motor

Scanner motor

Fuser motor

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Engine control system

7

The DC controller determines if the motor has failed and notifies the formatter when the motor encounters the following conditions:

Startup failure — The motor does not reach a specified rotational count within a specified time from when the motor starts.

Rotational failure — The rotational speed of the motor is not in the specified range for a specified time after the motor reaches a specified speed.

The DC controller notifies the formatter of a BD (beam detect) failure when it detects a rotational failure of the scanner motor.

The DC controller monitors the related part condition of the following motors to determine a motor failure:

Upper cassette lifter motor

Lower cassette lifter motor

Fan control

The product has three fans for preventing the temperature from rising in the product and cooling down the delivered paper.

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Chapter 1 Theory of operation

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Fan locations

The following figure shows the product fan locations.

Figure 1-5 Fan locations

FM1

FM3

FM2

Table 1-3 Fan locations

Fan

Cooling area

Type

Speed

FM1

Rear fan

Product inside and low-voltage power supply area

Exhaust

Full/Mid/Low

FM2

Front fan

Product inside

Intake

Full

FM3

Fuser fan

Fuser area

Intake

Full

Failure detection

The DC controller determines if the fan has failed and notifies the formatter when the fan stops rotating for a specified time during start-up.

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Engine control system

9

Low-voltage power-supply PCA

The low-voltage power supply converts AC power into the DC voltage that product components use.

Figure 1-6 Low-voltage power-supply PCA

AC input

Low-voltage power supply

High-voltage power supply

DC controller

High-voltage

Interlock

Power fuse

switch

circuit

FU1

SW2

Fuser circuit

+24VD

Power fuse

FU2

Zerocross

/ZEROX

detection

circuit

Power fuse

Power switch

FU3

Rectifying

+3.3VA

circuit

+3.3V

+3.3VA

+3.3VA

generation

circuit

+3.3VC

+3.3VD

Protection

+5V

+24VC

circuit

+24V

+5V

/PSTYP100

generation

generation

+24VC

circuit

circuit

+24VB

+24VB

RMT_24V

Interlock

RMT_PFC

switch

SW1

+3.3VA

Connector PCA

Formatter

+3.3VB

+3.3VA

+5V

+3.3VB

The following table shows the specifications for the DC power supply.

Table 1-4

Low voltage power supply DC power specifications

DC voltage

Behavior

+24V

+24VB

Off during Sleep mode (sleep level1, active off and inactive off)

+24VC

Off during Sleep mode (sleep level1, active off and inactive off) Interrupted when the left door open

+24VD

Off during Sleep mode (sleep level1, active off and inactive off) Interrupted when the left door or

the cartridge door open

10 Chapter 1 Theory of operation

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Table 1-4 Low voltage power supply DC power specifications (continued)

DC voltage

Behavior

+5V

+5V

Off during Sleep mode (sleep level1, active off and inactive off)

+3.3V

+3.3VA

Constantly supplied

+3.3VB

Off during Sleep mode (inactive off)

+3.3VC

Off during Sleep mode (active off and inactive off)

+3.3VD

Off during Sleep mode (sleep level1, active off and inactive off)

Over-current/over-voltage/overload protection

The over-current/overvoltage protection automatically stops the DC voltage to the product components whenever an excessive current or abnormal voltage is detected. The overload protection automatically stops the DC voltage to the product components whenever the temperature of the low-voltage power supply PCA rises to specified degrees.

The low-voltage power supply has a protective circuit against over-current, over-voltage and overload to prevent failures in the power supply circuit. If DC voltage is not being supplied from the low-voltage power supply, the protective function might be running. In this case, turn the power off and unplug the power cord. Do not turn the product switch on until the root cause is found and corrected.

The DC controller determines a low-voltage power supply failure and notifies the formatter when the protective function runs.

In addition, the low-voltage power supply has three fuses to protect against over-current. If over-current flows into the AC line, the fuse blows to stop AC power.

Safety interruption

For user and service technician’s safety, the product interrupts the power supply of +24V by turning off the interlock switch. The DC power to the following components is interrupted:

High-voltage power supply

Fuser motor

The remote switch control circuit turns on or off the product so that the AC power flows even the power switch is turned off. Be sure to unplug the power cord before disassembling the product.

Power supply voltage detection

The power supply voltage detection controls the fuser properly according to the voltage. The DC controller detects whether the low-voltage power supply voltage is 100V or 220V according to the POWER SUPPLY VOLTAGE signal (/PSTYP100).

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Engine control system 11

Sleep mode

The Sleep mode reduces the power consumption of the product. There are three types of sleep mode:

Sleep level 1

The DC controller stops the power supply of +24V according to the +24V CONTROL signal (RMT_24V) and POWER FACTOR CORRECTION ACTIVATE signal (RMT_PFC) after a specified period of time from when a sleep command signal is sent from the formatter. The DC controller supplies +24V and the product exits sleep level 1 when a recover signal is sent from the formatter.

Active off

The DC controller stops the power supplies except for +3.3VA and +3.3VB to the formatter when an active off command signal is sent from the formatter during sleep level 1 or STBY period. The DC controller supplies all power supplies and the product exits active off when a recover signal is sent from the formatter or the power switch is depressed for shorter than three seconds.

Inactive off

The DC controller stops the power supplies except for +3.3VA to the formatter when an inactive off command signal is sent from the formatter during sleep level 1 or STBY period. The product enters inactive off when the power switch is depressed for longer than three seconds. The DC controller supplies all power supplies and the product exits inactive off when a recover signal is sent from the formatter or the power switch is depressed for shorter than three seconds.

Power supply illumination control

The DC controller changes the light of the LED (power supply illumination) for the power switch according to the power supply condition as follows:

Lighting-up: STBY period or sleep level 1

Blinking: Active off

Lighting-out: Inactive off

12 Chapter 1 Theory of operation

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High-voltage power-supply PCA

The high-voltage power supply applies positive or negative voltage biases to the following components:

Primary charging roller

Developing roller

Transfer roller

Static charge eliminator

Fuser film

Figure 1-7

High-voltage power-supply PCA

Fuser

Fuser film

DC controller

High-voltage power supply

Pressure roller

Primary

Cartridge

charging bias

circuit

To primary charge roller

To developing roller

Developing

bias circuit

Photosensitive drum

Static charge eliminator

Transfer roller

Static charge

eliminatior

bias circuit

Transfer bias circuit

The DC controller controls the high-voltage power supply to generate the following biases.

Primary charging bias

The primary charging bias is used to charge the surface of the photosensitive drum evenly to prepare for image formation. The primary charging bias circuit generates the bias.

Developing bias

The developing bias is used to adhere toner to an electrostatic latent image formed on the photosensitive drum. The developing bias circuit generates the bias.

Transfer bias

The transfer bias is used to transfer the toner from the photosensitive drum onto the paper. The transfer bias circuit generates the bias. The transfer bias circuit also generates the reverse bias to clean the transfer roller.

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Engine control system 13

Static charge eliminator bias

The static charge eliminator bias is used to improve the paper-feed performance and imagequality. The static charge eliminator bias circuit generates the bias.

Fusing bias

The fusing bias is used to improve the image-quality. The primary charging bias circuit generates the bias.

14 Chapter 1 Theory of operation

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Fuser control

The fuser heater control circuit and the fuser heater safety circuit control the fuser temperature according to commands from the DC controller. The product uses an on-demand fusing method.

Figure 1-8 Fuser components

TP1

TH1

TH2

Pressure roller

TH3

FUSER TEMPERATURE signal

FUSER HEATER CONTROL signal

Fuser heater control circuit

Fuser heater safety circuit

High-voltage power supply

DC controller

The following table shows the function of each fuser component.

Component

Function

H1

Fuser main heater

Heats center area of the fuser film

H2

Fuser sub heater

Heats both ends of the fuser film

TP1

Thermoswitch

Prevents an abnormal temperature rise of the fuser heater (contact type)

TH1

Main thermistor

Detects the temperature at center of the fuser heater (contact type)

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Engine control system 15

HP LaserJet Enterprise 700 M712 Troubleshooting Manual

Component

Function

TH2

Sub thermistor 1

Detects the temperature at ends of the fuser heater (contact type)

TH3

Sub thermistor 2

TH4

Sub thermistor 3

Figure 1-9

Fuser control system

AC input

Low-voltage power supply

DC controller

Zerocross detection

/ZEROX

circuit

High-voltage power supply

RL1001

Relay drive circuit

RLD

RL1002

Fuser heater

FSRD1

FSRD2

control circuit

Current

Fuser heater safety circuit

detection

FSRCUR

circuit

Fuser control circuit

MFSRTH

S1FSRTH

S2FSRTH

S3FSRTH

Fuser

Fuser film assembly

TH2

TH1

TP1

TH3

TH4

H1/H2

Pressure roller

16 Chapter 1 Theory of operation

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Fuser temperature control

The fuser temperature control maintains the temperature of the fuser heater at its targeted temperature.

The DC controller monitors the FUSER TEMPERATURE signals (MFSRTH, S1FSRTH, S2FSRTH and S3FSRTH) and sends the FUSER HEATER CONTROL signals (FSRD1 and FSRD2). The fuser heater control circuit controls the fuser heater depending on the signals so that the fuser heater remains at the targeted temperature.

Fuser heater protective function

The fuser heater protective function detects an abnormal temperature rise of the fuser and interrupts power supply to the fuser heater. The following protective components prevent an abnormal temperature rise of the fuser heater:

DC controller

The DC controller monitors the detected temperature of the thermistor. The DC controller releases the relay (RL1001) to interrupt power supply to the fuser heater when it detects an abnormal temperature.

Fuser heater safety circuit

The fuser heater safety circuit monitors the detected temperature of the thermistor. The fuser heater safety circuit releases the relays (RL1001 and RL1002) or deactivates the fuser heater control circuit to interrupt power supply to the fuser heater when it detects an abnormal temperature.

Thermoswitch

The contact of the thermoswitch is broken to interrupt power supply to the fuser heater when the temperature of the fuser heater is abnormally high.

Current detection circuit

The current detection circuit monitors the current value flowing in the fuser heater control circuit, and it releases the relay to interrupt power supply to the fuser heater when it detects an abnormal current flow.

The DC controller deactivates the FUSER HEATER CONTROL signal and releases the relays (RL1001 and RL1002) to interrupt power supply to the fuser heater when it detects out of a specified current value of the CURRENT DETECTION signal (FSRCUR).

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Engine control system 17

Fuser failure detection

The DC controller determines if the fuser functions properly. The DC controller determines a fuser failure, interrupts power supply to the fuser heater and notifies the formatter of a failure state when it encounters the following conditions:

Abnormally high temperature 1

The main thermistor detects 240°C (464°F) or higher for a specified period.

Abnormally high temperature 2

The sub thermistor 1 detects 230°C (446°F) or higher for a specified period during WAIT period. The sub thermistor 1 detects 230°C (446°F) or higher for a specified period before INTR starts. The sub thermistor 1 detects 300°C (572°F) or higher for a specified period.

Abnormally high temperature 3

Either one of the sub thermistor 2 or sub thermistor 3 detects 230°C (446°F) or higher for a specified period during WAIT period.

Either one of the sub thermistor 2 or sub thermistor 3 detects 230°C (446°F) or higher for a specified period before INTR starts.

Either one of the sub thermistor 2 or sub thermistor 3 detects 300°C (572°F) or higher for a specified period.

Abnormally low temperature 1

The main thermistor detects 60°C (140°F) or lower for a specified period during WAIT period.

The main thermistor detects 70°C (158°F) or lower for a specified period during heater temperature control of INTR period.

The main thermistor detects the targeted temperature minus 40°C (104°F) or lower for a specified period during heater temperature control or pressure roller cleaning of PRINT period.

The main thermistor detects 80°C (176°F) or lower for a specified period during heater temperature control or pressure roller cleaning of PRINT period.

Abnormally low temperature 2

The sub thermistor 1 detects 60°C (140°F) or lower for a specified period during WAIT period.

Abnormally low temperature 3

Either one of the sub thermistor 2 or sub thermistor 3 detects 60°C (140°F) or lower for a specified period during WAIT period.

Abnormal temperature rise

The main thermistor detects the targeted temperature minus 10°C (50°F) or lower for a specified period during heater temperature control of INTR period.

Drive circuit failure

18 Chapter 1 Theory of operation

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The frequency of the ZEROCROSS signal is not detected in a specified value within a specified period after power-on.

The frequency of the ZEROCROSS signal is not detected in a specified value for a specified period after power-on and once the signal is detected.

Heater failure

A specified current value or lower is detected during the heater drive period of the WAIT period or when more than a specified electrical power is input.

Pressure roller cleaning

The pressure roller cleaning clears toner on the pressure roller surface by adhering to the paper according to a command from the formatter. This is executed only when the paper size is A4-R (rotated) or Letter-R (rotated). The operational sequence of the pressure roller cleaning is as follows:

1.The DC controller picks up the paper from the designated input source when a cleaning command is sent from the formatter.

2.When the trailing edge of paper passes through the transfer roller, the fuser motor repeats to rotate-and-stop at regular intervals and the fuser heater turns on-and-off at the same time.

3.The toner on the pressure roller fuses onto the paper and the roller clears.

4.The paper with fused toner is delivered out of the product.

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Engine control system 19

Laser scanner system

The DC controller controls the laser scanner system according to commands from the formatter. The DC controller controls the internal components in the laser scanner system to form latent electrostatic image on the photosensitive drum according to the VIDEO signals. The following are the main components of the laser scanner system:

Laser assembly

Scanner motor assembly

BD (beam detect) sensor

Scanner mirror

Figure 1-10 Laser scanner system

DC controller

Laser assembly

Scanner mirror

BD sensor

Scanner motor assembly

Photosensitive drum

20 Chapter 1 Theory of operation

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Laser scanner failure detection

The DC controller determines a laser scanner failure and notifies the formatter of the error state when any of the following conditions occurs:

BD failure

A specified BD interval is not detected within a specified period during the scanner motor drive.

Scanner motor start-up failure

The scanner motor does not reach a specified rotation within a specified period from when the laser scanner starts driving.

Laser failure

A specified laser intensity is not detected.

Laser scanner safety function

The laser scanner has a mechanical shutter. For user and service technician safety, the laser shutter interrupts optical path of the laser scanner when the cartridge door is open.

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Laser scanner system 21

Image-formation system

The DC controller controls the image-formation system according to commands from the formatter. The DC controller controls the internal components of the image-formation system to form the toner image on the photosensitive drum surface. The toner image is transferred to the paper and fused.

The following are the main components of the image-formation system:

Cartridge

Transfer roller

Fuser

Laser scanner

High-voltage power supply

Figure 1-11 Image-formation system

Transfer roller

Fuser

High-voltage power supply

DC controller

The DC controller rotates the drum motor to drive the following components:

Photosensitive drum

Developing roller (follows the photosensitive drum)

Primary charging roller (follows the photosensitive drum)

Transfer roller

The DC controller rotates the fuser motor to drive the following components:

Pressure roller

Fuser film (follows the pressure roller)

22 Chapter 1 Theory of operation

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Figure 1-12 Image-formation components

Cartridge

Photosensitive drum

Drum motor

Primary charging roller

Fuser motor

Fuser film

Developing roller

Transfer roller

Fuser

Pressure roller

DC controller

Image-formation process

The image-formation process consists of seven steps divided into five functional blocks:

Latent-image-formation system

Step 1: Primary charging

Step 2: Laser-beam exposure

Developing system

Step 3: Developing

Transfer system

Step 4: Transfer

Step 5: Separation

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Image-formation system 23

Fuser system

Step 6: Fusing

Drum cleaning

Step 7: Drum cleaning

Figure 1-13 Image-formation process

: Paper path

Latent image formation

: Direction of the drum rotation

2. Laser-beam exposure

: Functional block

: Step

1. Primary charging

Developing

3. Developing

7. Drum cleaning

Delivery

6. Fusing

5. Separation

4. Transfer

Pickup

Fusing

Transfer

Latent-image formation block

During the two steps that comprise this block, an invisible latent image is formed on the photosensitive drum.

Step 1: primary charging

To prepare for latent image formation, the surface of the photosensitive drum is charged with a uniform negative potential. The primary charging roller charges the photosensitive drum directly. The primary charging bias is applied to the primary charging roller to keep a negative potential on the drum surface.

Figure 1-14 Primary charging

Primary charging roller

Primary charging bias

Photosensitive drum

24 Chapter 1 Theory of operation

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Step 2: laser-beam exposure

The laser-beam strikes the surface of the photosensitive drum to neutralize the negative charge. An electrostatic latent image forms where the negative charge was neutralized.

Figure 1-15 Laser-beam exposure

Laser beam

Photosensitive drum

Development block

Toner adheres to the electrostatic latent image on the photosensitive drum, which becomes visible.

Step 3: developing

Toner acquires a negative charge from the friction that occurs when the developing roller rotates against the developer blade. The developing bias is applied to the developing roller to make difference in the electric potential of the drum. The negatively charged toner is attracted to the latent image on the photosensitive drum because the drum surface has a higher potential. The latent image becomes visible on the drum.

Figure 1-16 Developing

Developer blade

Developing roller

Developing bias

Photosensitive drum

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Image-formation system 25

Transfer block

During the two steps that comprise this block, a toner image on the photosensitive drum transfers to the paper.

Step 4: image transfer

The toner on the photosensitive drum is transferred to the paper. The transfer bias is applied to the transfer roller to charge the paper positive. The negatively charged toner on the drum surface transfers onto the paper.

Figure 1-17 Image transfer

Photosensitive

drum

Paper

Transfer roller

Transfer bias

Step 5: separation from the drum

The elasticity of the paper and the curvature of the photosensitive drum cause the paper to separate from the photosensitive drum. The static charge eliminator bias is applied to the static charge eliminator. The static charge eliminator reduces back side static discharge of the paper after the transfer process for stable paper-feed and print-quality.

Figure 1-18 Separation from the drum

Photosensitive

drum

Paper

Static charge eliminator

Transfer roller

Static charge eliminator bias

26 Chapter 1 Theory of operation

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Fuser block

Until the fusing stage is complete, the image is not permanently affixed to the paper. The toner can be easily smudged until the heat and pressure of the fusing process fix the image to the sheet.

Step 6: fusing

The toner melts by the heat and pressure as the paper passes through the rollers. The toner image is permanently fused to the paper. The fusing bias is applied to the fuser film to improve print-quality.

Figure 1-19 Fusing

Fuser heater

Fuser film

Toner

Paper

Fusing bias

Pressure roller

Drum-cleaning block

The residual toner is removed from the photosensitive drum surface

Step 7: drum cleaning

The cleaning blade scrapes the residual toner off the surface of the photosensitive drum and toner is deposited in the toner collection box.

Figure 1-20 Drum cleaning

Cleaning blade

Toner collection box

Photosensitive

drum

Toner cartridge

The cartridge is filled with toner and consists of the following components:

Photosensitive drum

Developing roller

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Image-formation system 27

Loading…

Hello ,  you need a philips screw driver fo you to fix this problem ,

the switch of the left door is not activated by the little plastic tab on the left door

-check for broken tab

-you need to remove back cover and low voltage power supply

-check the left door lever behind low voltage power supply

check for correct motion of the lever.

there’s a plastic cover over le door switch, you need to have the door open to remove.

I know it a technician job..

goog luck.

  1. Инструкции и руководства
  2. Бренды
  3. HP
  4. laserjet m712
  5. Руководство По Устранению Ошибки

HP

LASERJET ENTERPRISE 700

Troubleshooting Manual

M712

2

3

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