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ENWW 64 Chapter 2 Solve problems NEUTRAL1 (W) LIVE1 (BK) SOLD1 SOLD2 654321 J206 6 Inlet J1001 5 100V H801A 1 2 200V H801B 1 2 1 2 J2A 1 2 J2B TB2A TP1A TB2B TP1B 1 TP 2 1 TP 2 TB1A TB1B FU LIVE(W) FU NEUTRAL(W) FU LIVE(BK) FU NEUTRAL(BK) 4321 J201 321 J302A 321 J302B Intermediate PCA Low-voltage Power Supply Ass'y J301 123 J101 J102 FU LIVE(BK) FU NEUTRAL(W) 13 12 11 10 9 8 7 6 5 4 3 2 1 J203 SL2 SL 21 J205 12 J204 +24R FEEDSLD +3.3V +3.3V +3.3V SGND SGND SGND SR6 J606 321 SGND RLD+ RLDFSRD+ FSRDFREQSNS LVT100V /REM3V V PWSV +3.3R +3.3R SGND SGND FEEDSLD +3.3T SGND PISNS +24R (R) PGND (BL) 21 J140 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J108 J103 11 7654321 J119 654321 J107 321 J106 654321 J4 J3 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J7WL 4 SR3 J601 LOOPSNS SGND +3.3T J7D J7DH 321 J7L 21 21 SGND MAINTH SGND(BL) +3.3T(R) PWSNS(GY) POUTSNS(Y) N.C. DVSS(R) VIN(V) SGND(Y) +3.3T(BL) FSRPRESNS(GY) N.C. J8004 J8001 J8002 J8003 J9001 J9002 J9003 J9004 J9005 J9006 2 1 SR2 SR1 TH801 21 J118 SR4 Density/ITBTOP Sensor J611 987654321 3 ITB Ass'y ITBTOPPWM DNSP DNSGAIN1 DNSGAIN0 DNSPWM ITBTOPSNS DNSS +24V SGND SW1 SOLD10 SOLD9 DOORSNS_R SGND Memory TAG SOLD7 SOLD8 Control Panel (Base model) Engine Controller Ass'y FEED/CLR SW +3.3V RDY LED ATT LED LED Y LED M LED C LED K SG SW Y SW M SW C SW K 13 12 11 10 9 8 7 6 5 4 3 2 1 J7 13 12 11 10 9 8 7 6 5 4 3 2 1 J5 Formatter(Base model) Control Panel (Plus model) Formatter(Plus model) 11 SGND 1 10 /VDI 2 9 VDI 3 8 SGND 4 7 /BDO 5 6 SGND 6 5 /TOP 7 4 SCLK 8 3 SC 9 2 /CCRT 10 1 SLPWUP 11 11 15 14 13 12 11 10 9 8 7 J5WL 5432 FEED/CLR SW +3.3V RDY LED ATT LED LED Y LED M LED C LED K SG SW Y SW M SW C SW K WL SW WL LED 21 J128 98 7654321 J130 11 J104 654321 J112 87654321 J110 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J109 2 1 11 /BDI 1 Laser Driver PCA J801 11 10 +3.3T 2 9 SGND 3 8 LDPWM 4 7 SGND 5 6 LDCNT0 6 5 LDCNT1 7 4 SGND 8 D 3 VDO 9 2 /VDO 10 1 SGND 11 J8D J8DH J8L 21 21 Memory TAG SOLD4 SOLD3 Scanner Ass'y CVSS VIN 4321 87654321 M5 M J802 PGND /SCNDEC /SCNACC +24V PWSW +24V C +24B M4 M J704 87654321 J705 /MAINMFG +24B /MAINMDEC GNDB J706 /MAINMACC Power Switch GNDB MAINMFR PCA MAINMFR PGND /MAINMACC PGND /MAINMDEC +24B /MAINMFG +24B ROTHPSNS SGND +3.3T 3 2 1 10 9 8 7 6 5 4 3 2 1 SR7 J607 4321 4321 4321 ROTMB M1 M J701 ROTMBN ROTMA ROTMAN B FSRMB M2 M J702 FSRMBN FSRMA FSRMAN M3 M J703 FEEDMBN FEEDMB FEEDMAN FEEDMA TR2ICLSLD +24V 21 SL1 SL 21 J115D J115DH J115L A General circuit diagram Figure 2-7 Circuit diagram

Section	Page
Removal and replacement	17
Introduction	18
Removal and replacement strategy	18
Electrostatic discharge	19
Required tools	19
Service approach	20
Before performing service	20
After performing service	20
Post-service test	20
Print-quality test	20
Parts removal order	21
Removal and replacement procedures	22
Replace the print cartridges	22
Replace the imaging drum	25
Input tray	29
Secondary transfer roller	30
Separation pad assembly	31
Remove the separation pad assembly	31
Pickup roller	32
Remove the pickup roller assembly	33
Covers	34
Right cover assembly	34
Remove the right cover assembly	34
Left cover assembly	35
Remove the left cover assembly	35
Top door assembly	36
Remove the top door assembly	36
Rear top cover assembly	38
Remove the rear top cover assembly	38
Rear door assembly	39
Remove the rear door assembly	39
Rear lower cover assembly	40
Remove the rear lower cover assembly	40
Control panel	41
Remove the control panel	41
Front door	43
Remove the front door	43
Main assemblies	45
ITB assembly	45
Remove the ITB assembly	45
Fuser delivery assembly	54
Remove the fuser delivery assembly	55
Formatter PCA (base model)	59
Remove the formatter PCA (base model)	59
Formatter and wireless PCA (plus model)	60
Remove the formatter and wireless PCA (plus model)	60
Engine controller assembly	62
Remove the engine controller assembly	62
Low-voltage power supply assembly	65
Remove the low-voltage power supply assembly	65
Solve problems	69
Solve problems checklist	70
Step 1: Make sure that the product is set up correctly	70
Step 2: Check the cabling or wireless connection (network models only)	70
Step 3: Check to see if any control-panel lights are lit	70
Step 4: Check the paper	70
Step 5: Check the software	71
Step 6: Test print functionality	71
Step 7: Check the supplies	71
Step 8: Try sending a print job from a computer	71
Troubleshooting process	72
Determine the problem source	72
Power subsystem	73
Power-on checks	73
Tools for troubleshooting	74
Component diagnostics	74
Engine diagnostics	74
Engine test page	74
Diagrams	75
Plug/jack locations	75
Locations of connectors	76
Locations of major components	77
General timing chart	79
General circuit diagram	80
Internal print-quality test pages	81
Print quality troubleshooting page	81
Interpret the Print Quality Page	81
Clean the paper path	82
Print configuration page	82
Print-quality troubleshooting tools	83
Repetitive image defects ruler	83
Calibrate the product	83
Interpret control panel light patterns	84
Status alert messages	87
Clear jams	93
Prevent paper jams	93
Jam locations	94
Clear jams from the input tray	94
Clear jams from the output bin	96
Clear jams from the rear door	97
The product does not feed automatically	98
The product feeds multiple sheets	98
Solve image-quality problems	99
Image defects table	99
Clean the product	105
Clean the separation pad or pickup roller	105
Clean the paper path	106
Clean the exterior	106
Solve performance problems	107
The product does not print	107
The product prints slowly	107
Solve connectivity problems	108
Solve direct-connect problems	108
Solve network problems	108
Poor physical connection	108
The computer is using the incorrect IP address for the product	108
The computer is unable to communicate with the product	109
The product is using incorrect link and duplex settings for the network	109
New software programs might be causing compatibility problems	109
The computer or workstation might be set up incorrectly	109
The product is disabled, or other network settings are incorrect	109
Solve wireless network problems (wireless models only)	110
Wireless connectivity checklist	110
The product does not print after the wireless configuration completes	110
The product does not print, and the computer has a third-party firewall installed	111
The wireless connection does not work after moving the wireless router or product	111
Cannot connect more computers to the wireless product	111
The wireless product loses communication when connected to a VPN	111
The network does not appear in the wireless networks list	111
The wireless network is not functioning	111
Service mode functions	113
Product resets	113
Product updates	113
Parts and diagrams	115
Order parts by authorized service providers	116
Order replacement parts	116
Related documentation and software	116
Supplies part numbers	116
Service parts	116
Whole-unit replacement part numbers	117
How to use the parts lists and diagrams	118
Assembly locations	119
Base product (no optional trays or accessories)	119
Covers, panels, and doors	120
Internal assembly	122
Internal assembly	122
PCAs	124
Alphabetical parts list	126
Numerical parts list	128
Service and support	131
Hewlett-Packard limited warranty statement	132
HP's Premium Protection Warranty: LaserJet print cartridge limited warranty statement	134
HP's LaserJet imaging drum limited warranty statement for replacement imaging drums	135
Data stored on the print cartridge and imaging drum	136
End User License Agreement	137
OpenSSL	139
Customer self-repair warranty service	140
Customer support	140
Repack the product	141
Specifications	143
Physical specifications	144
Power consumption	144
Acoustic specifications	145
Environmental specifications	145
Regulatory information	147
FCC regulations	148
Declaration of conformity (base models)	149
Declaration of conformity (wireless models)	151
Certificate of Volatility	153
Safety statements	155
Laser safety	155
Canadian DOC regulations	155
VCCI statement (Japan)	155
Power cord instructions	155
Power cord statement (Japan)	155
EMC statement (Korea)	156
Laser statement for Finland	156
GS statement (Germany)	156
Substances Table (China)	157
Restriction on Hazardous Substances statement (Turkey)	157
Additional statements for wireless products	158
FCC compliance statement—United States	158
Australia statement	158
Brazil ANATEL statement	158
Canadian statements	158
European Union regulatory notice	158
Notice for use in France	159
Notice for use in Russia	159
Korean statement	159
Taiwan statement	159

Match case Limit results 1 per page

General circuit diagram

Figure 2-7

Circuit diagram

WL SW

WL LED

SW K

SW M

LED K

LED M

+3.3V

/BDI

+3.3T

SGND

LDPWM

SGND

VDO

/VDO

SCLK

/TOP

/BDO

SGND

/VDI

ROTMBN

ROTMA

ROTMAN

FSRMB

FSRMBN

FSRMA

FSRMAN

SGND

PGND (BL)

RLD-

FSRD+

FREQSNS

LVT100V

+3.3R

SGND

PISNS

SGND

FEEDSLD

+3.3T

ITBTOPSNS

DNSPWM

DNSGAIN0

DNSGAIN1

SGND

/CCRT

VDI

FSRD-

SGND(BL)

+3.3T(R)

LOOPSNS

SGND

SLPWUP

ROTMB

VIN(V)

DNSS

+24V

SGND

+24B

/MAINMDEC

/MAINMFG

/MAINMACC

MAINMFR

GNDB

LDCNT0

LDCNT1

SGND

+24R (R)

MAINTH

SGND

PWSV

/REM3V V

RLD+

SGND

+3.3T

+3.3V

FEEDMB

FEEDMBN

FEEDMAN

FEEDMA

TR2ICLSLD

+24V

PGND

+24B

ROTHPSNS

SGND

+3.3T

/MAINMACC

MAINMFR

/MAINMDEC

/MAINMFG

+24V

PWSW

+24V

/SCNACC

/SCNDEC

PGND

VIN

CVSS

POUTSNS(Y)

FU LIVE(BK)

FU NEUTRAL(W)

FU LIVE(W)

Laser Driver PCA

Scanner Ass’y

SGND

FU NEUTRAL(BK)

FU LIVE(BK)

FU NEUTRAL(W)

+24R

FEEDSLD

LIVE1 (BK)

NEUTRAL1 (W)

DOORSNS_R

DNSP

ITBTOPPWM

Density/ITBTOP

Sensor

Low-voltage Power Supply Ass’y

Intermediate PCA

Memory TAG

100V

200V

Power Switch

PCA

ITB Ass’y

Inlet

PWSNS(GY)

DVSS(R)

SGND(Y)

+3.3T(BL)

FSRPRESNS(GY)

Formatter(Base model)

Control Panel

(Base model)

Engine Controller Ass’y

N.C.

FEED/CLR SW

RDY LED

ATT LED

LED Y

LED C

SW Y

SW C

13 12 11 10

15 14 13 12 11 10

J5WL

18 17 16 15 14 13 12 11 10

J109

TB2B

SL2

J606

H801A

H801B

J2B

J2A

J1001

SR6

J205

J7L

J7DH

J7D

SR3

J601

SR7

J8D

J8DH

J201

J301

TB1A

J302A

J102

J101

J119

J103

J705

J115D

J115DH

J302B

SR2

SR1

SOLD3

SOLD4

J8L

J802

SL1

J115L

J607

J706

J701

J703

J112

J107

SW1

TH801

J118

J206

J104

J110

J801

SOLD1

SOLD2

TP1A

TP1B

J106

TB2A

J9002

J9001

J8002

J8003

J9003

J9006

J9005

J9004

SOLD7

TB1B

J204

SR4

J130

J702

J704

J8004

SOLD9

SOLD10

J611

17 16 15 14 13 12 11 10

J108

J8001

J140

J128

SOLD8

13 12 11 10

J203

J7WL

N.C.

Formatter(Plus model)

Control Panel

(Plus model)

SW K

SW M

LED K

LED M

+3.3V

FEED/CLR SW

RDY LED

ATT LED

LED Y

LED C

SW Y

SW C

Chapter 2

Solve problems

ENWW