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惠普M521多功能激光打印机维修手册故障代码查询拆装图解
发布时间:2018-06-10 20:58   浏览次数: 次  
惠普M521多功能激光打印机维修手册包含机器拆装手册:备件拆卸和更换以及备件列表和图示;故障诊断手册:工作原理介绍和故障诊断与排除,包括维修模式的进入和使用等。文中给出了手册的获取方法
惠普M521打印机维修手册
惠普M521多功能激光打印机维修手册可从以下淘宝链接获取:
https://item.taobao.com/item.htm?id=559885821464&ns=1


故障诊断与排除手册

Table of contents
1 Theory of operation ....... 1
打印机工作原理
Basic operation .......... 2
Major systems ........ 2
Product block diagram ....... 2
Sequence of operation ....... 3
Normal sequence of operation ... 3
Formatter-control system ......... 4
Auto on/Auto off mode ...... 4
Input/output .......... 5
CPU .......... 5
Memory ..... 6
Firmware 6
Nonvolatile memory ...... 6
Control panel ........ 6
Engine-control system .. 7
Motors, fans, clutches, solenoids, switches, and sensors ..... 8
DC controller operations .. 15
Fuser-control circuit .......... 17
Fuser failure detection .. 18
Fuser temperature control ........ 19
Fuser protective function .......... 20
Low-voltage power supply 21
Overcurrent/overvoltage protection ..... 22
High-voltage power supply .......... 23
Laser/scanner system ...... 24
Laser failure detection .. 25
Image-formation system ........ 26
Electrophotographic process ........ 26
Image formation process .. 27
Latent-image formation stage ... 28
Primary charging .... 28
Laser beam exposure .......... 28
ENWW v
Developing stage ........ 29
Toner cartridge ....... 29
Transfer stage .. 30
Fusing stage 30
Cleaning stage ....... 31
Toner detection .... 32
Pickup, feed, and delivery system ..... 33
Paper trays .......... 33
Photo sensors and switches ......... 34
Solenoids and clutches .... 36
Tray 1 or Tray 2 ...... 38
Pickup and feed unit ........ 38
Cassette paper size detection/cassette paper detection .......... 38
Cassette pickup 38
Tray 1 paper pickup ........ 38
Paper pickup and feed .... 39
Jam detection ...... 40
Additional tray ........ 41
Tray driver PCA ... 41
Paper pickup and feed .... 42
Paper level and size detection ..... 43
Jam detection ...... 43
Scanner system ........ 44
Scanner power-on sequence of events ..... 44
Copy or scan sequence of events . 45
2 Solve problems . 47
故障诊断与排除
Solve problems checklist ...... 48
Menu map ... 50
Troubleshooting process ....... 51
Pre-troubleshooting checklist ........ 51
Determine the problem source ...... 52
Troubleshooting flowchart ....... 52
Power subsystem .. 53
Power-on checks ......... 53
Power-on troubleshooting overview .. 53
Control-panel checks ....... 54
Tools for troubleshooting ...... 56
Diagrams . 56
Block diagrams 56
Location of connectors . 58
vi ENWW
DC controller connections .... 58
Formatter connections ......... 59
Plug and port locations 60
Locations of major assemblies .. 61
General timing charts .. 65
Circuit diagrams ......... 66
Use HP Device Toolbox (Windows) ......... 68
Internal print-quality test pages ..... 69
Clean the paper path .. 69
Print the configuration page ..... 69
Print quality troubleshooting tools . 70
Repetitive defects ruler . 70
Control-panel menus ........ 71
Setup Menu ..... 71
HP Web Services .... 71
Reports menu .......... 72
Self Diagnostics menu ......... 73
Fax Setup menu ...... 73
System Setup menu .. 76
Service menu .......... 79
Network Setup menu .......... 81
Quick Forms menu .. 82
Function specific menus 83
USB Flash Drive ...... 83
Fax Menu .... 83
Copy Menu . 86
Scan Menu .. 87
Apps .......... 87
Interpret control-panel messages .. 88
Control panel message types ... 88
Control panel messages .......... 88
49 Error, Turn off then on .... 88
50.x Fuser Error ...... 88
51.XX Error . 88
54.XX Error . 89
55.X Error ... 89
57 Fan Error, Turn off then on ......... 89
59.X Error ... 90
79 Error Turn off then on ..... 90
Black Cartridge low . 90
Black Cartridge very low ..... 90
ENWW vii
Cleaning ..... 91
Communication Error .......... 91
Device error, press OK ....... 91
Document feeder door is open. Canceled fax. ........ 92
Door open ... 92
Fax is busy. Canceled send. 92
Fax is busy. Redial pending. 92
Fax receive error. .... 93
Fax Send error. ....... 93
Fax storage is full. Canceling the fax receive. ......... 94
Fax storage is full. Canceling the fax receive. ......... 94
Fax storage is full. Canceling the fax send. .. 94
Genuine HP supply installed 94
Incompatible <color> .......... 95
Install <color> cartridge ...... 95
Invalid driver Press OK ....... 95
Jam in Tray 1, Clear jam and then press OK .......... 95
Load tray 1 Press OK for available media ... 95
Load Tray 1 <TYPE> <SIZE>, Press OK to use available media ....... 96
Load Tray 1, <PLAIN> <SIZE> / Cleaning mode, OK to start ......... 96
Load Tray <X>: [Type], [Size] ......... 96
Manual Duplex Load Tray 1, Press OK ....... 96
Manual feed <SIZE> <TYPE>, Press OK to use available media ...... 96
Memory is low. Press OK. ... 97
Misprint, Press OK ... 97
No dial tone. .......... 97
No fax answer. Canceled send. ...... 98
No fax answer. Redial pending. ..... 98
No Fax Detected ..... 98
Print failure, press OK. If error repeats, turn off then on. ...... 99
Remove shipping lock from <color> cartridge ......... 99
Replace <color> ..... 99
Unexpected size in tray 1 Load <size> Press OK .... 99
Unsupported <color> Press OK to continue 100
Used <color> cartridge is installed Press OK to continue ... 100
Event-log messages ....... 100
Print the event log ...... 100
Show an event log .... 100
Event log messages ... 101
Clear jams . 104
Jam locations ..... 104
viii ENWW
Clear jams in the document feeder ........ 105
Clear jams in the output area .... 107
Clear jams in Tray 1 ...... 109
Clear jams in Tray 2 or optional Tray 3 . 112
Clear jams in the fuser ... 116
Clear jams in the duplexer ........ 118
Paper feeds incorrectly or becomes jammed .......... 120
The product does not pick up paper ...... 120
The product picks up multiple sheets of paper .... 120
The document feeder jams, skews, or picks up multiple sheets of paper . 121
Prevent paper jams from the paper trays 121
Solve image-quality problems ........ 122
Image defect examples .. 122
Clean the product .. 130
Clean the pickup and separation rollers . 130
Clean the paper path .... 130
Clean the scanner glass strip and platen 130
Clean the document feeder pickup rollers and separation pad ... 131
Clean the touchscreen ... 132
Solve performance problems ......... 133
Solve connectivity problems 134
Solve USB connection problems . 134
Solve wired network problems ... 134
Poor physical connection ....... 134
The computer is using the incorrect IP address for the product 135
The computer is unable to communicate with the product ...... 135
The product is using incorrect link and duplex settings for the network .......... 135
New software programs might be causing compatibility problems ..... 135
The computer or workstation might be set up incorrectly ........ 135
The product is disabled, or other network settings are incorrect ......... 135
Solve wireless network problems 136
Wireless connectivity checklist .......... 136
The product does not print after the wireless configuration completes . 137
The product does not print, and the computer has a third-party firewall
installed ........ 137
The wireless connection does not work after moving the wireless router or
product ......... 137
Cannot connect more computers to the wireless product ........ 137
The wireless product loses communication when connected to a VPN 138
The network does not appear in the wireless networks list ..... 138
The wireless network is not functioning .......... 138
ENWW ix
Perform a wireless network diagnostic test ..... 138
Reduce interference on a wireless network .... 139
Service mode functions ...... 140
Service menu ..... 140
Service menu settings . 140
Restore the factory-set defaults .......... 140
Secondary service menu 141
Open the secondary service menu ..... 141
Secondary service menu structure ...... 141
Product resets .... 142
NVRAM initialization . 142
Super NVRAM initialization ... 143
Solve fax problems . 144
Checklist for solving fax problems ......... 144
Perform a fax diagnostic test ...... 145
Fax trace report . 146
Fax error report printing . 146
Print all fax reports .... 146
Print individual fax reports ..... 146
Set the fax error report .......... 147
Set the fax-error-correction mode 147
Change the fax speed ... 147
Solve problems sending faxes .... 148
An error message displays on the control panel ........ 148
The Communication Error message appears ......... 148
No dial tone. ........ 149
The Fax is busy. message appears 149
The No fax answer. message appears ...... 150
Document feeder paper jam ......... 150
The Fax storage is full. message appears .. 151
Scanner error ....... 151
The control panel displays a Ready message with no attempt to send the fax . 151
The control panel displays the message "Storing page 1" and does not
progress beyond that message .......... 152
Faxes can be received, but not sent ... 152
Product is password protected .......... 152
Unable to use fax functions from the control panel ..... 152
Unable to use speed dials ..... 153
Unable to use group dials ..... 153
Receive a recorded error message from the telephone company when trying
to send a fax . 153
x ENWW
Unable to send a fax when a telephone is connected to the product .. 154
Solve problems receiving faxes .. 154
The fax does not respond ...... 154
The fax has a dedicated telephone line ..... 154
An answering machine is connected to the product .......... 155
The Answer Mode setting is set to the Manual setting ........ 155
Voice mail is available on the fax line ....... 156
The product is connected to a DSL telephone service ......... 156
The product uses a fax over IP or VoIP telephone service ... 156
An error message displays on the control panel ........ 157
The No Fax Detected message displays .... 157
The Communication Error message appears ......... 157
The Fax storage is full. message appears .. 158
The Fax is busy. message appears 158
A fax is received but does not print ... 159
The Private Receive feature is on ... 159
Sender receives a busy signal 159
A handset is connected to the product ....... 159
A telephone line splitter is being used ....... 159
No dial tone .. 159
Cannot send or receive a fax on a PBX line ... 159
Solve general fax problems ....... 160
Faxes are sending slowly ...... 160
Fax quality is poor .... 161
Fax cuts off or prints on two pages .... 161
Product updates ..... 163
Manually update the firmware ... 163
Set the product to automatically update the firmware ..... 163
Appendix A Service and support ........ 165
Hewlett-Packard limited warranty statement 166
HP's Premium Protection Warranty: LaserJet toner cartridge limited warranty statement ...... 168
HP policy on non-HP supplies ........ 169
HP anticounterfeit Web site 170
Data stored on the toner cartridge .. 171
End User License Agreement .......... 172
OpenSSL .... 175
Customer self-repair warranty service ........ 176
Customer support ... 177
ENWW xi
Appendix B Product specifications ...... 179
Physical specifications ....... 180
Power consumption, electrical specifications, and acoustic emissions ......... 180
Environmental specifications .......... 180
Appendix C Regulatory information .... 181
FCC regulations ..... 182
Environmental product stewardship program ......... 183
Protecting the environment ......... 183
Ozone production ......... 183
Power consumption ....... 183
Toner consumption ........ 183
Paper use .......... 183
Plastics ... 183
HP LaserJet print supplies .......... 184
Return and recycling instructions 184
United States and Puerto Rico 184
Multiple returns (more than one cartridge) . 184
Single returns ........ 184
Shipping ... 184
Non-U.S. returns ....... 185
Paper .... 185
Material restrictions ....... 185
Disposal of waste equipment by users .... 186
Electronic hardware recycling .... 186
Chemical substances ..... 186
Material Safety Data Sheet (MSDS) ....... 186
For more information ..... 186
Declaration of conformity (dn model) ......... 188
Declaration of conformity (dw model) ........ 190
Safety statements ... 192
Laser safety ....... 192
Canadian DOC regulations ....... 192
VCCI statement (Japan) .. 192
Power cord instructions .. 192
Power cord statement (Japan) .... 192
EMC statement (China) .. 193
EMC statement (Korea) .. 193
EMI statement (Taiwan) .. 193
Laser statement for Finland ........ 193
GS statement (Germany) 195
xii ENWW
Substances Table (China) .......... 195
Restriction on Hazardous Substances statement (Turkey) . 195
Restriction on Hazardous Substances statement (Ukraine) .......... 195
Additional statements for telecom (fax) products ..... 196
EU Statement for Telecom Operation ..... 196
New Zealand Telecom Statements ......... 196
Additional FCC statement for telecom products (US) ...... 196
Telephone Consumer Protection Act (US) 197
Industry Canada CS-03 requirements .... 197
Vietnam Telecom wired/wireless marking for ICTQC Type approved products .. 198
Additional statements for wireless products . 199
FCC compliance statement—United States ......... 199
Australia statement ........ 199
Brazil ANATEL statement 199
Canadian statements ..... 199
Products with 5 GHz Operation Industry of Canada ...... 200
Exposure to Radio Frequency Radiation (Canada) ......... 200
European Union regulatory notice ......... 200
Notice for use in France . 200
Notice for use in Russia . 200
Mexico statement .......... 201
Taiwan statement .......... 201
Korean statement .......... 201
Vietnam Telecom wired/wireless marking for ICTQC Type approved products .. 201

机器拆装与备件更换手册
Table of contents
1 Removal and replacement ........ 1
拆装与备件更换
Removal and replacement strategy ..... 2
General cautions during removal and replacement . 2
Electrostatic discharge ....... 2
Required tools ........ 3
Types of screws ..... 3
Service approach ....... 5
Before performing service .. 5
After performing service ..... 5
Post-service test ...... 5
Print-quality test .. 5
Location of connectors ....... 7
DC controller connections .......... 7
Formatter connections .... 9
Parts removal order ......... 10
Removal and replacement procedures ......... 11
Customer self repair (CSR) assemblies ..... 11
Toner cartridge 11
Tray 2 or Tray 3 assembly ....... 13
Document feeder rollers .......... 14
Document feeder pickup roller ........ 14
Document feeder separation roller ... 16
Document feeder separation pad ........ 17
External panels, covers, doors, and formatter ...... 18
Formatter cover 18
Formatter PCA . 19
Fax PCA and cable ..... 20
Interconnect board (ICB) ......... 21
Formatter stay .. 22
Dummy cover .. 23
Rear cover assembly .... 24
Left cover ........ 28
ENWW v
Right-rear cover 30
Tray 1 cover .... 32
Cartridge-door assembly ......... 34
Right cover assembly ... 36
Lower right cover ........ 41
Reinstall the lower right cover ......... 43
I/O plate ........ 44
Document feeder assemblies and scanner 46
Document feeder/scanner assembly .... 46
Document feeder whole unit kit and scanner whole unit kit ...... 52
Document feeder hinge assembly ........ 57
Control-panel top-cover 57
Control-panel assembly 59
USB PCA ........ 60
Control-panel FFC ....... 61
USB cable and USB grounding cable .. 64
Wi-Fi module and cable .......... 67
Main assemblies .. 71
Tray 1 pickup roller ..... 71
Tray 1 separation pad . 73
Tray 2 or Tray 3 pickup roller .. 74
Tray 2 or Tray 3 separation pad ......... 76
Tray 2 or Tray 3 base-plate roller assembly ..... 76
Transfer roller .. 78
Fuser ... 80
Duplex paper-feed assembly .... 83
Registration roller assembly ..... 86
Power-switch assembly . 88
Interlock-switch assembly ......... 89
Tray sensor PCA ......... 91
Main fan ......... 93
Top cover ........ 95
Laser scanner ... 98
Tag holder assembly .. 101
DC controller . 102
Low-voltage power supply (LVPS) ....... 106
Tray 2 paper pickup assembly .......... 112
Tray 1 or Tray 2 pickup solenoid ...... 118
Fuser motor ... 120
Pendulum assembly ... 121
Sub fan and fan duct . 124
vi ENWW
Environmental sensor . 128
High-voltage power supply (HVPS) .... 130
2 Parts and diagrams ... 139
备件列表与图示
Order parts by authorized service providers .......... 140
Order parts, accessories, and supplies .. 140
Supplies part numbers ... 140
Customer self-repair (CSR) and service kits ........ 141
Related documentation and software ......... 142
Fasteners used in this product ........ 142
How to use the parts lists and diagrams ..... 143
Assembly locations . 143
Base product (no optional trays or accessories) .. 143
Base product (optional trays or accessories) ...... 144
Covers ....... 146
Document feeder and scanner assemblies .. 148
Control-panel and USB PCA assemblies ..... 150
Document feeder assemblies .......... 152
Internal assemblies (1 of 6) 154
Internal assemblies (2 of 6) 156
Internal assemblies (3 of 6) 158
Internal assemblies (4 of 6) 160
Internal assemblies (5 of 6) 162
Internal assemblies (6 of 6) 164
Input devices ......... 166
500-sheet input tray (Tray 3) ..... 166
Alphabetical parts list ........ 168
Numerical parts list 172

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