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惠普M476彩色激光打印机维修手册故障代码查询拆装图解
发布时间：2020-02-11 10:57   浏览次数： 次　　
惠普M476彩色激光打印机维修手册包含机器拆装手册：各备件的详细拆卸和更换步骤图解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M476打印机维修手册
惠普M476彩色激光打印机维修手册可以访问下淘宝链接联系客服：
https://item.taobao.com/item.htm?id=611639732863
打印机拆装手册
Table of contents
1 Removal and replacement ...... 1
拆卸与更换
Removal and replacement strategy ........ 2
Introduction ....... 2
Considerations during removal and replacement ........ 2
Electrostatic discharge 2
Required tools ... 3
Accessing the 2ndary service menu 4
Fasteners used in this product ........ 5
Service approach ....... 6
Before performing service .... 6
After performing service ....... 6
Post-service tests ....... 7
Print-quality test 7
Copy quality test . 7
Fax quality test (fax models only) .... 7
Removal and replacement procedures ... 8
Rollers and pads 8
Transfer roller ..... 8
Pickup roller (Tray 2 or Tray 3) ......... 9
Separation roller (Trays 2 or 3) ...... 11
Reinstall the separation roller ......... 12
Document feeder pickup roller assembly 13
Pickup roller and separation pad (Tray 1) 14
Scanner and document feeder ...... 17
Scanner assembly ....... 17
Document feeder ........ 18
Remove the scanner cable cover ..... 18
Remove the document feeder ......... 21
Reinstall the document feeder ........ 22
Covers and doors ....... 22
Print-cartridge drawer 22
Right cover ........ 25
ENWW v
Right-front cover and power button ........ 26
Rear-upper cover ........ 28
Paper-feed guide assembly .. 29
Rear door . 30
Rear-lower cover and rear-door links ...... 32
Remove the rear-lower cover and rear-door links ........ 32
Rear-door rib assembly ........ 36
Remove the rear-door rib assembly 36
Control panel and right-arm mount ......... 39
Reinstall the control panel and right-arm mount ......... 40
Upper-cover assembly 42
Remove the upper-cover assembly . 42
Reinstall the upper-cover assembly 43
Left cover 45
Remove the left cover .. 45
Reinstall the left cover . 47
Front-door assembly .. 48
Remove the front-door assembly .... 48
Internal assemblies ... 54
Intermediate transfer belt (ITB) ..... 54
Reinstall the ITB . 57
Drum motor (M1) and developer motor (M2) ..... 58
Reinstall the drum motor (M1) and developer motor (M2) ..... 63
Intermediate PCA ........ 64
Formatter PCA ... 65
Remove the formatter PCA .... 65
Fax PCA .... 66
Wireless PCA ..... 68
DC controller PCA ........ 69
Remove the DC controller PCA ......... 69
Fuser-motor assembly ......... 71
Remove the fuser-motor assembly . 71
Reinstall the fuser-motor assembly 74
High-voltage power-supply PCA .... 75
Remove the high-voltage power-supply PCA ...... 75
Color-misregistration sensor assembly ... 78
Remove the color-misregistration sensor assembly .... 78
Reinstall the color-misregistration sensor assembly ... 80
Fan (FM1) . 82
USB PCA (fax/memory-card models) ....... 83
Remove the USB PCA .... 83
vi ENWW
Duplex-reverse drive assembly ..... 84
Remove the duplex-reverse drive assembly ....... 84
Fuser ....... 87
Remove the fuser ......... 87
Reinstall the fuser ........ 92
Paper-delivery assembly ...... 93
Remove the paper-delivery assembly ....... 93
Low voltage power supply .... 95
Trays .... 104
Tray cassettes and optional Tray 3 assembly . 105
2 Parts and diagrams .. 107
备件列表与图示
Order parts, accessories, and supplies ......... 108
Orderable parts ..... 109
Accessories .... 109
Toner cartridges ...... 109
Customer self repair (CSR) and service kits .... 109
Whole unit replacement (WUR) . 110
Service parts 111
Related documentation and software 111
How to use the parts lists and diagrams ...... 112
Scanner and document feeder main assembly ...... 114
Covers 116
Internal assemblies ......... 118
Internal assemblies (1 of 7) ........ 118
Internal assemblies (2 of 7) ........ 120
Internal assemblies (3 of 7) ........ 122
Internal assemblies (4 of 7) ........ 124
Internal assemblies (5 of 7) ........ 126
Internal assemblies (6 of 7) ........ 128
Internal assemblies (7 of 7) ........ 130
PCAs ..... 132
Accessories .. 134
250-sheet paper feeder accessory kit (optional Tray 3) ... 134
Alphabetical parts list ..... 136
Numerical parts list ......... 139
Index ..... 143
ENWW vii
viii ENWW
List of tables
Table 1-1 Common fasteners .. 5
Table 2-1 Accessories . 109
Table 2-2 Toner cartridges ... 109
Table 2-3 Customer self repair (CSR) and service kits . 109
Table 2-4 Pro 400 Color MFP M476 nw .... 110
Table 2-5 Pro 400 Color MFP M476 dn ..... 110
Table 2-6 Pro 400 Color MFP M476 dw .... 110
Table 2-7 Service parts ........ 111
Table 2-8 Related documentation and software ......... 111
Table 2-9 Scanner and document feeder main assembly ..... 115
Table 2-10 Covers ....... 117
Table 2-11 Internal assemblies (1 of 7) ... 119
Table 2-12 Internal assemblies (2 of 7) ... 121
Table 2-13 Internal assemblies (3 of 7) ... 123
Table 2-14 Internal assemblies (4 of 7) ... 125
Table 2-15 Internal assemblies (5 of 7) ... 127
Table 2-16 Internal assemblies (6 of 7) ... 129
Table 2-17 Internal assemblies (7 of 7) ... 131
Table 2-18 PCAs 133
Table 2-19 250-sheet paper feeder accessory kit (optional Tray 3) ........ 135
Table 2-20 Alphabetical parts list .. 136
Table 2-21 Numerical parts list ...... 139
ENWW ix
x ENWW
List of figures
Figure 1-1 Phillips and pozidrive screwdriver comparison ........ 3
Figure 1-2 Raise the front of the product .. 10
Figure 1-3 Remove the pickup roller 10
Figure 1-4 Remove the pickup roller (1 of 3) ....... 11
Figure 1-5 Remove the separation roller (2 of 3) 11
Figure 1-6 Remove the separation roller (3 of 3) 12
Figure 1-7 Reinstall the separation roller .. 12
Figure 1-8 Open the jam-access cover ....... 13
Figure 1-9 Remove the document feeder pickup roller assembly .... 13
Figure 1-10 Remove the Tray 1 pickup roller (1 of 3) .... 14
Figure 1-11 Raise the front of the product 15
Figure 1-12 Remove the Tray 1 pickup roller (3 of 3) .... 15
Figure 1-13 Remove the Tray 1 separation pad .. 16
Figure 1-14 Disconnect the ground cable, connector, and FFCs ....... 17
Figure 1-15 Remove four screws ..... 17
Figure 1-16 Lift and slide the scanner assembly . 18
Figure 1-17 Lift the scanner up and off the product ..... 18
Figure 1-18 Turn the scanner assembly over ...... 19
Figure 1-19 Remove three screws, then remove the cable cover ..... 20
Figure 1-20 Remove three screws, then remove the cable cover ..... 20
Figure 1-21 Release the cables ........ 21
Figure 1-22 Remove the document feeder assembly ... 21
Figure 1-23 Remove the print-cartridge drawer (1 of 3) ......... 23
Figure 1-24 Remove the print-cartridge drawer (2 of 3) ......... 23
Figure 1-25 Remove the print-cartridge drawer (3 of 3) ......... 24
Figure 1-26 Remove the right cover (1 of 2) ........ 25
Figure 1-27 Remove the right cover (2 of 2) ........ 25
Figure 1-28 Remove the rear-upper cover (1 of 2) ........ 28
Figure 1-29 Remove the rear-upper cover (2 of 2) ........ 28
Figure 1-30 Remove the feed assembly (1 of 2) .. 29
Figure 1-31 Remove the feed assembly (2 of 2) .. 29
Figure 1-32 Close the duplex-feed assembly ...... 30
ENWW xi
Figure 1-33 Remove two screws ...... 30
Figure 1-34 Remove the rear door ... 31
Figure 1-35 Remove the rear- lower cover and rear-door links (1 of 6) ..... 32
Figure 1-36 Remove the rear-lower cover and rear-door links (2 of 6) ...... 33
Figure 1-37 Remove the rear-lower cover and rear-door links (3 of 6) ...... 33
Figure 1-38 Remove the rear-lower cover and link-guides (4 of 6) .. 34
Figure 1-39 Remove the rear-lower cover and link-guides (5 of 6) .. 34
Figure 1-40 Remove the rear-lower cover and rear-door links (6 of 6) ...... 35
Figure 1-41 Remove the rear-door rib assembly (1 of 3) ........ 36
Figure 1-42 Remove the rear-door rib assembly (2 of 3) ........ 37
Figure 1-43 Remove the rear-door rib assembly (2 of 3) ........ 37
Figure 1-44 Remove the rear-door rib assembly (3 of 3) ........ 38
Figure 1-45 Disconnect FFCs and connectors and loosen ferrite ...... 39
Figure 1-46 Remove four screws and disconnect the ground wire ... 39
Figure 1-47 Remove the right-arm mount 40
Figure 1-48 Install four screws and connect the ground wire . 40
Figure 1-49 Connect FFCs and connectors and replace ferrite ......... 41
Figure 1-50 Remove four screws ..... 42
Figure 1-51 Raise the back of the cover up and off the product ....... 42
Figure 1-52 Remove the upper-cover assembly . 43
Figure 1-53 Reinstall the upper-cover assembly (1 of 3) ........ 43
Figure 1-54 Reinstall the upper-cover assembly (2 of 3) ........ 44
Figure 1-55 Reinstall the upper-cover assembly (3 of 3) ........ 44
Figure 1-56 Remove the left cover (1 of 3) 45
Figure 1-57 Remove the left cover (2 of 3) 46
Figure 1-58 Remove the left cover (3 of 3) 46
Figure 1-59 Reinstall the left cover (1 of 2) ......... 47
Figure 1-60 Reinstall the left cover (2 of 2) ......... 47
Figure 1-61 Remove the front-door assembly (1 of 10) ......... 48
Figure 1-62 Remove the front-door assembly (2 of 10) ......... 49
Figure 1-63 Remove the front-door assembly (3 of 10) ......... 49
Figure 1-64 Remove the front-door assembly (4 of 10) ......... 50
Figure 1-65 Remove the front-door assembly (5 of 10) ......... 50
Figure 1-66 Remove the front-door assembly (6 of 10) ......... 51
Figure 1-67 Remove the front-door assembly (7 of 10) ......... 51
Figure 1-68 Remove the front-door assembly (8 of 10) ......... 52
Figure 1-69 Remove the front-door assembly (9 of 10) ......... 52
Figure 1-70 Remove the front-door assembly (10 of 10) ....... 53
Figure 1-71 Remove the ITB (1 of 6) 54
Figure 1-72 Remove the ITB (2 of 6) 54
Figure 1-73 Remove the ITB (3 of 6) 55
xii ENWW
Figure 1-74 Remove the ITB (4 of 6) 55
Figure 1-75 Remove the ITB (5 of 6) 56
Figure 1-76 Remove the ITB (6 of 6) 56
Figure 1-77 Diagnostic page .. 57
Figure 1-78 Remove motor M1 and motor M2 (1 of 6) .. 58
Figure 1-79 Remove motor M1 and motor M2 (2 of 6) .. 59
Figure 1-80 Remove motor M1 and motor M2 (3 of 6) .. 60
Figure 1-81 Remove motor M1 and motor M2 (4 of 6) .. 61
Figure 1-82 Remove motor M1 and motor M2 (5 of 6) .. 61
Figure 1-83 Remove motor M1 and motor M2 (6 of 6) .. 62
Figure 1-84 Reinstall the motor M1 and motor M2 wire-harness retainer . 63
Figure 1-85 Remove the Intermediate PCA (1 of 2) ....... 64
Figure 1-86 Remove the Intermediate PCA (2 of 2) ....... 64
Figure 1-87 Remove the formatter PCA (1 of 2) .. 66
Figure 1-88 Remove the formatter PCA (2 of 2) .. 66
Figure 1-89 Remove the fax PCA ...... 67
Figure 1-90 Remove the wireless PCA ....... 68
Figure 1-91 Remove the DC controller PCA (1 of 2) ....... 70
Figure 1-92 Remove the DC controller PCA (2 of 2) ....... 70
Figure 1-93 Remove the fuser-motor assembly (1 of 6) ......... 71
Figure 1-94 Remove the fuser-motor assembly (2 of 6) ......... 72
Figure 1-95 Remove the fuser-motor assembly (3 of 6) ......... 72
Figure 1-96 Remove the fuser-motor assembly (4 of 6) ......... 73
Figure 1-97 Remove the fuser-motor assembly (5 of 6) ......... 73
Figure 1-98 Remove the fuser-motor assembly (6 of 6) ......... 74
Figure 1-99 Reinstall the fuser-motor assembly 74
Figure 1-100 Remove the high-voltage power-supply PCA (1 of 5) . 75
Figure 1-101 Remove the high-voltage power-supply PCA (2 of 5) . 76
Figure 1-102 Remove the high-voltage power-supply PCA (3 of 5) . 76
Figure 1-103 Remove the high-voltage power-supply PCA (4 of 5) . 77
Figure 1-104 Remove the high-voltage power-supply PCA (5 of 5) . 77
Figure 1-105 Remove the color-misregistration sensor assembly PCA (1 of 4) .. 78
Figure 1-106 Remove the color-misregistration sensor assembly PCA (2 of 4) .. 79
Figure 1-107 Remove the color-misregistration sensor assembly PCA (3 of 4) .. 79
Figure 1-108 Remove the color-misregistration sensor assembly PCA (4 of 4) .. 80
Figure 1-109 Reinstall the color-misregistration sensor assembly PCA (1 of 2) . 80
Figure 1-110 Reinstall the color-misregistration sensor assembly PCA (2 of 2) . 81
Figure 1-111 Remove the fan (FM1) (1 of 2) ........ 82
Figure 1-112 Remove the fan (FM1) (2 of 2) ........ 82
Figure 1-113 Remove the USB PCA (fax/memory-card models) ....... 83
Figure 1-114 Remove the duplex-reverse drive assembly (1 of 4) ... 84
ENWW xiii
Figure 1-115 Remove the duplex-reverse drive assembly (2 of 4) ... 85
Figure 1-116 Remove the duplex-reverse drive assembly (3 of 4) ... 85
Figure 1-117 Remove the duplex-reverse drive assembly (4 of 4) ... 86
Figure 1-118 Remove the fuser (1 of 8) ..... 87
Figure 1-119 Remove the fuser (2 of 8) ..... 88
Figure 1-120 Remove the fuser (3 of 8) ..... 88
Figure 1-121 Remove the fuser (4 of 8) ..... 89
Figure 1-122 Remove the fuser (5 of 8) ..... 89
Figure 1-123 Remove the fuser (6 of 8) ..... 90
Figure 1-124 Remove the fuser (7 of 8) ..... 90
Figure 1-125 Remove the fuser (8 of 8) ..... 91
Figure 1-126 Reinstall the fuser ...... 92
Figure 1-127 Remove the paper-delivery assembly (1 of 4) .. 93
Figure 1-128 Remove the paper-delivery assembly (2 of 4) .. 94
Figure 1-129 Remove the paper-delivery assembly (3 of 4) .. 94
Figure 1-130 Remove the paper-delivery assembly (4 of 4) .. 95
Figure 1-131 Remove three screws . 96
Figure 1-132 Original routing of wires to be removed .. 97
Figure 1-133 DCC plugs disconnected ........ 97
Figure 1-134 Unplugged wires have been removed from the wire guides and plugs from the Driver PCA have
been disconnected . 98
Figure 1-135 Disconnect the plug on the formatter board ..... 98
Figure 1-136 Plastic wire frame ....... 99
Figure 1-137 Tabs to release . 99
Figure 1-138 Remove one screw ... 100
Figure 1-139 Remove one screw above and left of the power switch ...... 100
Figure 1-140 Remove the screw holding the tray 3 harness in place ....... 101
Figure 1-141 Remove the tray 3 harness and pin guide ....... 101
Figure 1-142 Remove the screws securing the low voltage power supply ........ 102
Figure 1-143 Remove the screw securing the top of the low voltage power supply ... 102
Figure 1-144 Lift the low voltage power supply ......... 103
Figure 1-145 Disconnect two plugs ......... 103
Figure 1-146 Remove the ground strap ... 104
Figure 1-147 Remove the low voltage power supply .. 104
Figure 1-148 Remove the tray cassettes and optional Tray 3 assembly (1 of 2) ......... 105
Figure 1-149 Remove the tray cassettes and optional Tray 3 assembly (2 of 2) ......... 105
Figure 2-1 Scanner and document feeder main assembly .... 114
Figure 2-2 External panels and covers .... 116
Figure 2-3 Internal assemblies (1 of 7) .... 118
Figure 2-4 Internal assemblies (2 of 7) .... 120
Figure 2-5 Internal assemblies (3 of 7) .... 122
xiv ENWW
Figure 2-6 Internal assemblies (4 of 7) .... 124
Figure 2-7 Internal assemblies (5 of 7) .... 126
Figure 2-8 Internal assemblies (6 of 7) .... 128
Figure 2-9 Internal assemblies (7 of 7) .... 130
Figure 2-10 PCAs ........ 132
Figure 2-11 250-sheet paper feeder (optional Tray 3) ......... 134

故障诊断与排除手册
Table of contents
1 Theory of operation ..... 1
打印机工作原理介绍
Basic operation 2
Major systems ... 2
Product components ... 2
Sequence of operation 3
Formatter-control system ... 4
Sleep Delay ........ 4
Input/output ...... 4
USB .. 4
10/100 networking ....... 4
Fax ... 4
USB hosts .. 5
Memory .... 5
Flash memory ..... 5
Random access memory ......... 5
Nonvolatile memory ..... 5
Memory Enhancement technology ... 5
Wireless radio .... 5
PJL overview ...... 5
LEDM overview .. 6
ACL overview ..... 6
PML 6
Control panel ..... 6
NFC . 6
Engine control system ......... 7
DC controller ...... 8
Power supply ..... 9
Protective function ....... 9
Power saving ..... 10
Fuser control ..... 10
Fuser control circuit ...... 11
Fuser protective function ....... 12
ENWW v
Fuser failure detection . 13
High-voltage power supply .. 14
Laser/scanner system ....... 15
Laser failure detection ........ 15
Image-formation system .. 16
Image-formation process ... 16
Overview . 16
Latent-image formation stage ....... 17
Step 1: primary charging ........ 17
Step 2: laser-beam exposure . 18
Developing stage ........ 18
Step 3: development .... 18
Transfer stage ... 19
Step 4: primary transfer ......... 19
Step 5: secondary transfer ..... 19
Step 6: separation from the drum ... 20
Fusing stage ...... 20
Step 7: fusing ...... 20
ITB cleaning stage ....... 21
Step 8: ITB cleaning ...... 21
Drum cleaning stage ... 22
Step 9: drum cleaning .. 22
Developing roller engagement/disengagement control ........ 22
Pickup-and-feed system ... 23
Jam detection .. 25
Pad transfer ..... 25
Multiple-feed prevention .... 26
Scanning and image capture system .... 27
Scanner power-on sequence of events .. 27
Copy or scan sequence of events .. 28
Scanner operation ..... 28
ADF operation 30
ADF duplex operation 30
ADF paper path and ADF sensors .. 30
ADF jam detection ..... 31
ADF jam clearance ..... 32
Fax functions and operation ....... 33
Computer and network security features ........ 33
PSTN operation ......... 33
Receive faxes when you hear fax tones . 33
Distinctive ring function ...... 34
vi ENWW
Fax by using Voice over IP services ......... 34
The fax subsystem .... 35
Fax card in the fax subsystem ...... 35
Safety isolation . 35
Safety-protection circuitry ... 35
Data path . 35
Hook state ......... 36
Downstream current detection ...... 36
Hook switch control .... 36
Ring detect ........ 36
Line current control .... 36
Billing- (metering-) tone filters ...... 37
Fax page storage in flash memory ......... 37
Stored fax pages ......... 37
Advantages of flash memory storage ...... 37
USB flash drive ......... 38
2 Solve problems ......... 39
故障诊断与排除
Solve problems checklist ... 40
Menu structure ........ 42
Configuration report 43
Troubleshooting process .. 44
Determine the problem source ..... 44
Power subsystem ...... 45
Power-on checks ........ 45
Control-panel checks 45
Tools for troubleshooting . 46
Individual component diagnostics 46
Tools for troubleshooting: LED diagnostics ....... 46
Network LEDs ..... 46
Control panel LEDs ....... 46
Tools for troubleshooting: Engine diagnostics .. 47
Engine-test button ....... 47
Drum rotational check . 47
Half self-test functional check ......... 48
Diagrams ......... 49
Diagrams: Formatter connections .. 49
Diagrams: Location of major components ......... 50
Major components ........ 50
Motors and fans .. 52
Rollers ....... 53
ENWW vii
PCAs 54
Optional 250-sheet cassette . 55
Diagrams: General timing chart ...... 56
Diagrams: Circuit diagram .... 57
Diagrams: CPU/ASIC diagrams ........ 58
Diagrams: HVT/Toner EMP diagram ......... 60
Diagrams: Driver PCA diagram ....... 61
Diagrams: Duplexer PCA diagram .. 62
Diagrams: FSR diagram ........ 63
Print-quality troubleshooting tools ....... 64
Print-quality troubleshooting tools: Repetitive defects ruler ......... 64
Tools for troubleshooting: Control panel menus ....... 65
Setup menu ....... 65
HP Web Services menu . 65
Reports menu ..... 66
Self Diagnostics menu .. 66
Fax Setup menu .. 67
System Setup menu ..... 69
Service menu ...... 72
Network Setup menu .... 74
Quick Forms menu ........ 75
Fax Menu . 75
Copy Menu ......... 77
Tools for troubleshooting: Interpret control panel messages ...... 78
Control panel message types ......... 78
Control panel messages ....... 79
10.100X Supply Memory Error ......... 79
30.XXXX Scanner Error . 80
49 Error, Turn off then on ...... 80
50.XXXX Fuser Error ..... 81
51.XX and 52.XX Error To continue turn off then on ..... 82
54.0100 — 54.1599 Error ...... 82
55.1 DC controller Memory Error ..... 83
57 Fan Error, Turn off then on ......... 83
58.04 Error Turn off then on .. 83
59.XXXX Error Turn off then on ....... 84
60.XXXX Error Turn off then on ....... 85
79 Error Turn off then on ....... 85
Device is busy. Try again later. ......... 86
Document feeder mispick. Reload. .. 86
Document feeder jam. Clear and reload. ... 87
viii ENWW
Fax is busy. Canceled send. .... 87
Fax receive error. 87
Fax Send error. ... 88
Fax storage is full. Canceling the fax send/receive. ...... 88
Front door open. . 89
Jam in Tray 1, Clear jam and then press OK ......... 89
Jam in Tray 2, Clear jam and then press OK ......... 89
Jam in Tray 3, Clear jam and then press OK ......... 90
Load paper 90
Load Tray 1 <TYPE> <SIZE>, Press OK to use available media ......... 90
Load Tray 1, <PLAIN> <SIZE> / Cleaning mode, OK to start .... 90
Load tray <X> Press [OK] for available media ..... 90
No dial tone. ........ 91
No fax detected. . 91
The product is unable to calibrate. Close the lid and remove paper
from the document feeder. .... 91
Unexpected size in tray # Load <size> Press [OK] ........ 92
Tools for troubleshooting: Event-log messages ....... 92
Print the event log ...... 92
Event log messages .... 92
Clear jams ...... 95
Jam locations .. 95
Experiencing frequent or recurring paper jams? ........ 95
Clear jams in the document feeder ......... 97
Clear jams in Tray 1 ... 98
Clear jams in Tray 2 . 100
Clear jams in Tray 3 (accessory) . 101
Clear jams in the duplexer 103
Clear jams in the output bin ........ 105
Paper feeds incorrectly or becomes jammed ......... 106
The product does not pick up paper ..... 106
The product picks up multiple sheets of paper ........ 106
Solve image-quality problems .. 107
Solve image quality problems: Image defects table 107
Improve print quality ........ 112
Print from a different software program ......... 113
Check the paper-type setting for the print job 113
Check the paper type setting (Windows) . 113
Check the paper type setting (Mac OS X) . 113
Check toner-cartridge status ....... 113
Print and interpret the print quality page ........ 114
ENWW ix
Clean the product ..... 115
Print a cleaning page .. 115
Check the scanner glass for dirt and smudges .. 115
Visually inspect the toner cartridge ....... 116
Check paper and the printing environment ..... 116
Step one: Use paper that meets HP specifications ...... 116
Step two: Check the environment .. 116
Calibrate the product to align the colors ......... 117
Check other print job settings ...... 117
Check the EconoMode settings ...... 117
Adjust color settings (Windows) .... 118
Try a different print driver .. 119
General print-quality issues ....... 120
Solve paper-handling problems ......... 125
Product feeds incorrect page size ........ 125
Product pulls from incorrect tray ......... 125
Paper does not feed automatically ...... 125
Paper does not feed from Tray 2 or 3 ... 126
Output is curled or wrinkled ....... 126
Product will not duplex or duplexes incorrectly ...... 127
Clean the product .. 128
Clean the pickup and separation rollers ......... 128
Clean the paper path ......... 128
Clean the scanner glass strip and platen ....... 128
Clean the document feeder pickup rollers and separation pad ... 129
Clean the touchscreen ...... 130
Solve performance problems .... 131
Factors affecting print performance .... 131
Print speeds .... 131
The product does not print or it prints slowly 132
The product does not print . 132
The product prints slowly ... 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 ... 134
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
x ENWW
The product is disabled, or other network settings are incorrect . 135
Solve wireless network problems ........ 135
Wireless connectivity checklist .... 136
The product does not print after the wireless configuration completes 136
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 .. 137
The network does not appear in the wireless networks list ......... 137
The wireless network is not functioning 137
Perform a wireless network diagnostic test .... 138
Reduce interference on a wireless network .... 138
Solve fax problems 139
Checklist for solving fax problems ....... 139
Perform a fax diagnostic test ..... 140
Solve general fax problems ........ 140
Faxes are sending slowly ... 140
Fax quality is poor .... 141
Fax cuts off or prints on two pages ........ 142
Solve problems receiving faxes .. 142
The fax does not respond ... 143
The fax has a dedicated phone line ......... 143
An answering machine is connected to the product ... 143
The Answer Mode setting is set to the Manual setting ......... 144
Voice mail is available on the fax line ...... 144
The product is connected to a DSL phone service ....... 144
The product uses a fax over IP or VoIP phone service . 144
An error message displays on the control panel ....... 145
The No Fax Detected message displays .. 145
The Communication Error message appears .... 145
The Fax storage is full. message appears ......... 146
The Fax is busy. message appears 146
A fax is received but does not print ........ 147
The Private Receive feature is on .. 147
Sender receives a busy signal ...... 147
A handset is connected to the product .... 147
A phone line splitter is being used . 147
No dial tone ..... 147
Cannot send or receive a fax on a PBX line ...... 147
Solve problems sending faxes .... 147
ENWW xi
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 ..... 149
Document feeder paper jam 150
The Fax storage is full. message appears ......... 150
Scanner error .... 150
The control panel displays a Ready message with no attempt to send the fax ......... 150
The control panel displays the message "Storing page 1" and does not progress
beyond that message ......... 151
Faxes can be received, but not sent ....... 151
Product is password protected .... 151
Unable to use fax functions from the control panel .. 152
Unable to use speed dials ... 152
Unable to use group dials ... 152
Receive a recorded error message from the phone company when trying to send
a fax ...... 152
Unable to send a fax when a phone is connected to the product .. 153
Fax trace report ....... 154
Fax error report printing ... 154
Print all fax reports ... 154
Print individual fax reports . 154
Set the fax error report ...... 155
Set the fax-error-correction mode ....... 155
Change the fax speed ........ 155
Solve email problems ...... 156
Cannot connect to the email server ...... 156
The email failed ....... 156
Unable to scan ......... 156
Validate LDAP gateway ... 157
Access control for LaserJet Pro devices ......... 157
Product resets ....... 158
Restore the factory-set defaults 158
NVRAM initialization 158
Super NVRAM initialization ......... 158
Firmware upgrades ......... 159
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