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HP LaserJet Enterprise 500 Service Manual - Page 331

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Circuit diagrams Figure 3-39 General circuit diagram ENWW 6 5 4 3 2 1 M11 M 4321 J304 21 4321 J20 DUPMPHAD DUPMPHAND DUPMPHBD DUPMPHBND J21L +24VB DUP_SL 21 J21D 654321 J202 HVT-T J201 1234 1TR1:JP801-JP802 1TR2:JP826-JP827 1TR3:JP851-JP852 1TR4:JP876-JP877 2TR :T901 J200 SR7 J48 SR6 J47 SR5 J46 123 123 123 98 7 6 5 4 32 1 J30 SW4 1 2 Y M C K LED1 LED2 LED3 LED4 Operation panel 1 2 3 J780 FP_5V SGND /FPCS FPCLK FPI FPO 3.3VFP SGND KEYS Inter connect board J306 12345 J301 98 7 6 5 4 32 1 J303 SL2 SL 21 SGND DP DN VBUS SHIELD J21DH Duplex unit D 20 18 17 16 15 14 13 12 11 9 8 7 5 4 3 2 1 J95L J92L 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 3 2 1 J95LH J92D 8 7 6 5 4 3 2 1 1 2 3 J95D J92DH 1 2 3 4 5 6 7 8 USB I/F 5 SCN 4 SGND WAKEENG /VDOEN CLEI CLEO SGND VDO11I /VDO11I VDO12I /VDO12I VD021 /VD021 VD022 /VD022 VDO31 /VDO31 VDO32 /VDO32 VDO41 /VDO41 VDO42 /VDO42 SGND /VCRST SGND /TOPO SGND /BD4O /BD3O /BD2O /BD1O SGND WAKEVC SGND VC3VOFF /HVRESET 21 HVDALD HVDACLK 19 HVDATA2 1TR1S 1TR2S 1TR4S 1TR3S HVTCLK 2TRS 2TRCNT 2TRNCNT 10 DUPMPHB DUPMI0B DUPMI1B DUPMIDWN 6 DUPMI1A DUPMI0A DUPMPHA DUPSL 2TRCLK PGND +24VB PGND +24VB J31 5 SGND SGND +3.3VA +5VB +3.3VA /SWLED PWRSWON PREEXP1 +5VA PREEXP2 +5VA PREEXP3 +5VA PREEXP4 +5VA FSPRS SGND +3.3VC PAPFULL SGND +3.3VC PAPOUT SGND +3.3VC UNIT 3 10 11 12 13 14 15 16 17 18 19 20 21 2 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1 23 SGND 1 22 /VDO22 2 21 VDO22 3 20 LD2CTRL2 4 4321 J113 21 98 7 6 5 4 32 1 J123 11 10 9 8 7 6 5 4 3 2 1 J112 DC controller J105 35 TB602 TB502 TB501 TB601 4321 J100 19 LD2CTRL1 5 18 LD2CTRL0 6 17 /VDO21 7 16 VDO21 8 J116 J88L J88DH J88D +5VA FSMFR J40 +24VA PGND PGND +24VB TB107 TB106 TB105 2 21 SW3 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J120 M4 M 87654321 13 12 11 10 9 8 7 6 5 4 3 2 1 J127 11 10 9 8 7 6 5 4 3 2 1 LED5 LED6 LED7 LED8 SR17 K 321 C 4321 J251 12 12 87654321 87654321 87654321 J117 11 10 9 8 7 6 5 4 3 2 1 FM3 321 15 +5VDFU1 9 PREEXP4 /FSMFG +24VA +24VA TB104 4321 J138 J110 23 14 SGND 10 PGND +5VA /FSMDEC PGND C/K laser unit J 503 Y/M laser unit J55 J 501 23 23 13 /BD2I 11 12 LD2PDOUT 12 11 LD1PDOUT 13 10 SGND 14 9 /VDO120 15 8 VDO120 16 7 LD1CTRL2 17 6 LD1CTRL1 18 5 LD1CTRL0 19 4 /VDO110 20 3 VDO110 21 2 +5VDFU1 22 1 SGND 23 23 SGND 1 22 /VDO42 2 21 VDO42 3 20 LD4CTRL2 4 19 LD4CTRL1 5 18 LD4CTRL0 6 17 /VDO41 7 16 VDO41 8 15 +5VDFU1 9 14 SGND 10 13 /BD4I 11 12 LD4PDOUT 12 11 LD3PDOUT 13 10 SGND 14 9 /VDO32 15 8 VDO32 16 7 LD3CTRL2 17 6 LD3CTRL1 18 5 LD3CTRL0 19 4 /VDO31 20 3 VDO31 21 2 +5VDFU1 22 1 SGND 23 4321 M M9 4321 4321 J57L J57D J57LH J56 4321 M M8 4321 4321 J58L J58D J58LH J1 321 SR11 321 321 500-sheet PF 7 J70LH J70D J70L 7 6 5 4 3 2 1 J55DA +24VA /SCN2ACC /SCN2DEC PGND +24VA /SCN4ACC /SCN4DEC PGND +3.3VC SGND DEVHP +24VA INPOPTMG INPOPCLK INPOPOT PGND INPOPIN CHK24VB 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J106 J114 17 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J137 J111 23 4321 J108 321 J119 +24VB PGND +24VB 17 FAN3LK 1 16 FAN3D 2 15 FAN2LK 3 14 FAN2D 4 13 DEVMPHA 5 12 DEVMIOA 6 11 DEVMIOB 7 10 DEVMPHB 8 9 HVTCLK 9 8 DEV4CNT 10 7 DEV3CNT 11 6 DEV2CNT 12 5 DEV1CNT 13 4 HVDATA1 14 3 HVDACLK 15 2 HVDALD 16 1 /HVRESET 17 J250 HVT-D RS3 :JP451-JP452 J261 J262 RS2 :JP426-JP427 4321 654321 RS1 :JP401-JP402 BL4 :JP376-JP377 BL3 :JP351-JP352 BL2 :JP326-JP327 BL1 :JP301-JP302 PRI4:JP276-JP277 PRI3:JP251-JP252 PRI2:JP226-JP227 PRI1:JP201-JP202 PGND FAN3LK J27L J27DH J27D FAN3D 321 321 PGND FAN2LK FAN2D J26DH J26D J26L 4321 DEVMOUT0B DEVMOUT1A DEVMOUT0A DEVMOUT1B J25 M10 M FM2 E-label (Y) E-label (M) E-label (C) Y M SL1 SL 21 321 J16 J87L PREEXP3 +5VA PREEXP2 +5VA PREEXP1 +3.3VC SGND 1TRHP 24VAFU2 1TRSL 21 21 J87D J87DH VIN1 VSS1 VIN2 VSS2 VIN3 VSS3 VIN4 VSS4 RS4 :JP476-JP477 DEV1:JP501-JP502 DEV2:JP526-JP527 DEV3:JP551-JP552 DEV4:JP576-JP577 J91DH J91D J91L 321 321 SGND WTLED WTSSNS TONLED4 RTSNS4 SGND TONLED3 RTSNS3 SGND TONLED2 RTSNS2 SGND TONLED1 RTSNS1 SGND WTMSNS WTMON J77D J77L J77LH 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Toner collection box full sensor J76D J74D K 321 654321 98 7 6 5 4 32 1 321 654321 98765432 1 J97L J97D J97DH 321 J74L J74H C J76L J76LH J73D J73L J73H M 321 321 321 321 321 J96D J96LH J96L J72D J72L J72H Y 321 54321 321 54321 M12 M PGND FAN1LK FAN1D J75D J75DH J75L 21 21 J71D J71L J71H J89D J89L J89LH Toner level sensor E-label (K) Auto-close unit J81L J81D SR10 321 321 321 4321 J24 J81LH J78 +3.3VC SGND CSTPWIDTH LUPMOUT1B LUPMOUT0B LUPMOUT1A LUPMOUT0A J83D J83DH M7 M 21 SL4 SL 21 21 SR13 321 J83L J3 J79L J79D J79LH 321 321 24VAFU2 CSTSL +3.3VC SGND CSTSNS +3.3VC SGND CSTLUPS +3.3VC SGND CSTPEND SR9 321 321 321 J4 J80L Lifter drive unit J80D J80DH 321 SR20 321 FM1 321 4321 +3.3VA I2CSDA SGND I2CSCK J98D J98L J98LH 4321 4321 Environment sensor J2 J5 J82L M13 M Cassette pickup drive unit 4321 J82D J82DH FEEDMOUT0A FEEDMOUT1A FEEDMOUT0B FEEDMOUT1B J6 4321 J131 11 10 9 8 7 6 5 4 3 2 1 J140 7654321 J141 87654321 J126 87654321 J107 21 J122 7654321 J109 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J130 321 J118 /FSMACC PGND PGND +24VB +24VB J15 +5VC +5VA SW1 SW2 RDSFGAIN0 RDSFGAIN1 RDSFLED DSFSR DSFDR +5VD SGND SGND +5VD DSRDR DSRSR RDSRLED RDSRGAIN1 RDSRGAIN0 N.C. 7654321 J510 87654321 J511 M2 M RD sensor (rear) RD sensor (front) SR2 SR1 M5 M M3 M J41 J42 87654321 J93LH J93L 321 321 321 J43 J93D 321 J44 PGND DRMFR /DRM2ACC /DRM2DEC /DRM2FG +24VA +24VA PGND PGND DRMFR /DRM1ACC /DRM1DEC /DRM1FG +24VB +24VB PGND PGND DRMKFR /DRM3ACC /DRM3DEC /DRM3FG +3.3VC SGND DRMHP1 +3.3VC SGND DRMHP2 +3.3VC SGND DRMHP3 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J121 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J101 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J600 TB101 TB102 TB110 TB111 TB210 TB211 1 J61F J61M VC5VOFF PWRSAVE +5VA +5VA +3.3VA +3.3VA SGND 24VRMT SGND SGND FSRD PSTYP100 /ZEROX +24VB /FSRMSTOP CHK24VB FSR_CURRMS /RLD FSRSAFE2 FSRSAFE1 Power supply C 100V 200V IL101 IL201 J60F 21 12 HEATER1 H L HEATERC J60M H1 1 2 12 J12 B TP1 J50D J50L 1 TP 2 654321 654321 SR3 321 A5 B7 1 2 3 4 J50LA J50LB 7654321 J350 2 TH3 21 1 4 3 2 1 B7 A5 J50DB RMCL Registration unit J86L J45 J94LJ94D J94LH N.C. MT4 N.C. J51DH J51D J51L MT3 21 21 CL1 CL 21 24VAFU3 OHT_SNS SGND TOPI SGND +3.3VC J86D J86DH Drive unit J701 OHT sensor (in) 321 21 SR8 +3.3VC OHT_LED J90D J9 J702 21 OHT sensor (out) J90L J90LH 54321 J115 7654321 J139 SGND 1 FSRTH3 2 FSLP1 3 FSLP2 4 FSRSNS 5 +3.3VC 6 +3.3VC 7 SGND 1 FSRTH2 2 SGND 3 FSRTH1 4 N.C. 5 J50DA 7 21 J351 6 5 4 3 2 1 SR14 SR15 654321 J352 J11 J10 321 321 5 4 1 2 TH2 3 321 321 SR22 321 J8 REFEEDS 2 1 2 Fuser unit 1 N.C. TH1 A 321 SR21 SGND +3.3VC J85LH J85L MPTPEND J7 SGND Simplex model +3.3VC MPTSL 24VAFU2 54321 J85S 32121 J9S J701S 54321 21 7654321 J109S 87654321 J107S 54321 SL3 SL 21 J85D J84D J84L J84DH MP tray unit Tools for troubleshooting 295

Section	Page
Theory of operation	37
Basic operation	38
Sequence of operation	39
Engine control system	40
DC controller	41
Solenoids	42
Clutches	42
Switches	42
Sensors	43
Motors and fans	43
High voltage power supply	46
Low voltage power supply	48
Overcurrent/overvoltage protection	50
Safety	50
Sleep (powersave) mode	50
Power supply voltage detection	50
Low voltage power supply failure	50
Power off condition	51
Fuser control	51
Fuser temperature control circuit	52
Fuser over temperature protection	53
Fuser failure detection	54
Laser/scanner system	55
Image formation system	57
Image formation process	58
Step 1: Pre-exposure	59
Step 2: Primary charging	59
Step 3: Laser-beam exposure	60
Step 4: Development	60
Step 5: Primary transfer	61
Step 6: Secondary transfer	61
Step 7: Separation	62
Step 8: Fusing	62
Step 9: ITB cleaning	63
Step 10: Drum cleaning	63
Print cartridge	63
Developing roller engagement and disengagement	65
Intermediate transfer belt (ITB) unit	67
Primary-transfer-roller engagement and disengagement	68
ITB cleaning	71
Calibration	72
Color misregistration control	72
Image stabilization control	73
Pickup, feed, and delivery system	74
Pickup-and-feed unit	78
Cassette pickup	79
Cassette presence detection	80
Cassette lift operation	81
Cassette paper presence detection	82
Cassette media width detection	83
Multifeed prevention	84
Multipurpose tray pickup	85
Paper feed	86
Skew-feed prevention	87
OHT detection	88
Fusing and delivery unit	88
Loop control	89
Pressure-roller pressurization control	90
Duplexing unit (duplex models)	91
Duplexing reverse and feed control	92
Duplex pickup operation	92
Jam detection	93
Optional paper feeder	95
Paper-feeder pickup and feed operation	97
Paper size detection and cassette presence detection	98
Paper feeder cassette lift operation	100
Paper feeder presence detection	102
Paper-feeder multiple feed prevention	103
Paper feeder jam detection	104
Removal and replacement	105
Introduction	106
Removal and replacement strategy	106
Cautions during removal and replacement	106
Electrostatic discharge	107
Required tools	108
Service approach	109
Before performing service	109
After performing service	109
Post service test	109
Print-quality test	109
Parts removal order	110
Customer self repair (CSR) components	112
Print cartridges	112
Duplex reverse guide	114
Toner collection unit	115
Formatter PCA	117
Disk drives	118
Remove the HDD	118
Remove the SSM	120
Install a replacement hard drive	121
Reload the firmware	121
Tray cassette	122
Fuser	123
Pickup roller (Tray 1)	124
Pickup roller (Tray 2)	125
Pickup and feed rollers (Tray 3)	127
Separation roller (Tray 2)	129
Secondary transfer roller	130
Reinstall the transfer roller	131
Secondary transfer assembly	132
Reinstall the secondary transfer assembly	133
Intermediate transfer belt (ITB)	134
Right door (optional paper feeder)	136
Covers	138
Identification and location	138
Front door assembly	139
Right door assembly	141
Right rear cover	145
Left cover	147
Remove the left cover	147
Left bottom cover	149
Remove the left bottom cover	149
Left bottom handle	150
Remove the left bottom handle	150
Hardware integration pocket (HIP) (dn and xh models only)	151
Control panel assembly	152
Right front cover	154
Remove the right front cover	154
Reinstall the power button	157
Front top cover	158
Remove the front top cover	158
Rear cover and upper rear cover	160
Remove the rear cover and upper rear cover	160
Rear top cover	163
Remove the rear top cover	163
Right bottom handle	165
Remove the right bottom handle	165
Rear bottom handle	166
Remove the rear bottom handle	166
Internal assemblies	167
Delivery fan, cartridge fan, and environmental sensor	167
Remove the delivery fan, cartridge fan, and environmental sensor	167
Toner collection sensor	172
Remove the toner collection sensor	172
Residual toner feed motor	174
Remove the residual toner feed motor	174
Reinstall the residual toner collection door	178
Registration density (RD) sensor assembly	179
Remove the RD sensor assembly	179
Power supply fan and fan duct	183
Remove the power supply fan and fan duct	183
Registration assembly	186
Remove the registration assembly	186
Lower pickup guide	191
Remove the lower pickup guide	191
Reinstall the lower pickup guide	193
Interconnect board (ICB)	194
Remove the ICB	194
DC controller PCA and tray	196
Remove the DC controller PCA	196
Low voltage power supply	199
Remove the low voltage power supply	199
High voltage power supply lower (HVPS-D)	203
Remove the high voltage power supply lower	203
Reinstall the high voltage power supply lower	205
Developing disengagement motor	206
Remove the developing disengagement motor	206
Pickup motor	208
Remove the pickup motor	208
Lifter drive assembly	209
Remove the lifter drive assembly	209
Automatic close assembly	211
Remove the automatic close assembly	211
Cassette pickup drive assembly	212
Remove the cassette pickup drive assembly	212
Reinstall the cassette pickup drive assembly	217
Cassette pickup assembly	219
Remove the cassette pickup assembly	220
Laser/scanner assembly (Y/M)	222
Remove the laser/scanner assembly (Y/M)	222
Laser/scanner assembly (C/Bk)	229
Remove the laser/scanner assembly (C/Bk)	230
Reinstall the protective glass cleaner (PGC) actuators	234
High voltage power supply upper (HVPS-T)	237
Remove the high voltage power supply upper	238
Reinstall the high voltage power supply upper	241
Drum motor 1	242
Remove the drum motor 1	243
Drum motor 2 or drum motor 3	244
Remove the drum motor 2 or drum motor 3	245
Fuser motor	246
Remove the fuser motor	247
Main drive assembly	248
Remove the main drive assembly	249
Reinstall the main drive assembly	253
Fuser drive assembly	259
Remove the fuser drive assembly	260
Reinstall the fuser drive assembly	263
Delivery assembly	264
Remove the delivery assembly	265
Reinstall the delivery assembly	268
Duplex drive assembly	269
Remove the duplex drive assembly	270
Optional paper feeder assembly (Tray 3)	271
Drawer connector	271
Solve problems	273
Solve problems checklist	274
Menu map	276
Current settings pages	277
Preboot menu options	278
Troubleshooting process	279
Determine the problem source	279
Troubleshooting flowchart	279
Power subsystem	280
Power-on checks	280
Power-on troubleshooting overview	280
Tools for troubleshooting	282
Individual component diagnostics	282
LED diagnostics	282
Understand lights on the formatter	282
Heartbeat LED	282
Heartbeat LED, product initialization	283
Connectivity LED, product operating	285
Connectivity LED	286
Connectivity LED, product initialization	286
Connectivity LED, product operating	288
HP Jetdirect LEDs	289
Engine diagnostics	290
Defeating interlocks	290
Disable cartridge check	292
Engine test button	293
Paper path test	294
Paper path sensors test	294
Manual sensor test	296
Registration sensor	297
Fuser loop sensors	298
Fuser output sensor	299
Duplexer refeed sensor	300
Output-bin full sensor	301
Fuser pressure-release sensor	302
ITB alienation sensor	303
Right- and front-door interlock switches	305
Tray/bin manual sensor test	307
Tray 1 paper sensor	308
Tray 2 paper sensor	309
Tray 2 cassette sensor	310
Tray 2 cassette lifter sensor	311
Tray 3 empty sensor	312
Tray 3 media feed sensor	313
Tray 3 stack surface sensor	314
Tray 3 media size sensors	315
Print/stop test	315
Component tests	316
Component test (special-mode test)	316
Diagrams	318
Block diagrams	318
Location of connectors	320
DC controller PCA	320
Paper feeder driver PCA	321
Plug/jack locations	322
Locations of major components	322
Base product	322
1 x 500 paper feeder	329
General timing chart	330
Circuit diagrams	331
Internal print-quality test pages	333
Print quality troubleshooting pages	333
Print quality assessment page	336
Cleaning page	338
Set up an auto cleaning page	338
Configuration page	339
Configuration page	339
HP embedded Jetdirect page	341
Finding important information on the configuration pages	342
Color band test	343
Print quality troubleshooting tools	344
Repetitive defects ruler	344
Calibrate the product	345
Control panel menus	346
Sign In menu	346
Retrieve Job From USB menu	347
Retrieve Job From Device Memory menu	348
Supplies menu	352
Trays menu	360
Administration menu	365
Reports menu	365
General Settings menu	367
Retrieve From USB Settings menu	385
General Print Settings menu	385
Default Print Options menu	388
Display Settings menu	391
Manage Supplies menu	392
Manage Trays menu	399
Network Settings menu	401
Troubleshooting menu	418
Device Maintenance menu	424
Backup/Restore menu	424
Calibrate/Cleaning menu	424
USB Firmware Upgrade menu	427
Interpret control panel messages, status-alert messages, and event code errors	428
10.0X.Y0 Supply memory error	428
10.22.50	429
10.22.51	429
10.22.52	429
10.23.50	429
10.23.51	430
10.23.52	430
10.23.60	430
10.23.70 Printing past very low	430
10.XX.34 Used supply in use	431
10.XX.40 Genuine HP supplies installed	431
10.XX.41 Unsupported supply in use	432
10.XX.70 Printing past very low	432
10.YY.15 Install <supply>	433
10.YY.25 Wrong cartridge in <color> slot	433
10.YY.35 Incompatible <supply>	434
11.00.YY Internal clock error	435
13.00.00	435
13.A3.D3	435
13.A3.FF	435
13.B2.9C	435
13.B2.A1	436
13.B2.A2	436
13.B2.A3	436
13.B2.D1	436
13.B2.D2	436
13.B2.D3	436
13.D3.DZ	437
13.WX.EE	437
13.WX.FF	437
13.WX.YZ Fuser area jam	438
13.WX.YZ Fuser wrap jam	439
13.WX.YZ Jam below control panel	440
13.WX.YZ Jam in middle right door	440
13.WX.YZ Jam in right door	441
13.WX.YZ Jam in Tray 1	441
13.WX.YZ Jam in Tray <X>	442
20.00.00 Insufficient memory To continue, press OK	442
21.00.00 Page too complex	442
32.08.XX	443
32.1C.XX	443
32.21.00	447
33.XX.YY	448
33.XX.YY Used board/disk	448
41.02.00 Error	448
41.03.YZ Unexpected size in tray <X>	449
41.05.YZ Unexpected type in tray <X>	449
41.07.YZ Error To continue, press OK	451
42.XX.YY	453
47.00.XX	453
47.01.XX	453
47.02.XX	453
47.03.XX	454
47.04.XX	454
47.05.00	454
47.06.XX	454
47.WX.YZ Printer calibration error To continue, press OK	454
49.XX.YY To continue, turn off then on	456
50.WX.YZ Fuser error To continue, turn off then on	457
51.00.YY Error	460
52.00.XX To continue, turn off then on	460
54.XX.YY Error	461
55.00.YY DC controller error To continue, turn off then on	463
55.0X.YY DC controller error To continue, turn off then on	463
56.00.YY Error To continue, turn off then on	463
57.00.0Y Error To continue, turn off then on	464
58.00.04	464
59.00.YY Error To continue, turn off then on	465
59.05.XX	465
60.00.0Y Tray <Y> lifting error	466
61.00.01	467
62.00.00 No system To continue, turn off then on	467
70.00.00 Error To continue, turn off then on	467
81.0X.YY Embedded JetDirect error	468
98.00.01 Corrupt data in firmware volume	468
98.00.02 Corrupt data in solutions volume	469
98.00.03 Corrupt data in configuration volume	469
98.00.04 Corrupt data in job data volume	469
99.00.01 Upgrade not performed file is corrupt	469
99.00.02 Upgrade not performed timeout during receive	470
99.00.03 Upgrade not performed error writing to disk	470
99.00.04 Upgrade not performed timeout during receive	470
99.00.05 Upgrade not performed timeout during receive	470
99.00.06 Upgrade not performed error reading upgrade	471
99.00.07 Upgrade not performed error reading upgrade	471
99.00.08 Upgrade not performed error reading upgrade	471
99.00.09 Upgrade canceled by user	471
99.00.10 Upgrade canceled by user	472
99.00.11 Upgrade canceled by user	472
99.00.12 Upgrade not performed the file is invalid	472
99.00.13 Upgrade not performed the file is invalid	472
99.00.14 Upgrade not performed the file is invalid	473
99.00.2X	473
99.09.60 Unsupported disk	474
99.09.61 Unsupported disk	474
99.09.62 Unknown disk	474
99.09.63 Incorrect disk	474
99.09.64 Disk malfunction	474
99.09.65 Disk data error	475
99.09.66 No disk data installed	475
99.09.67 Disk is not bootable please download firmware	475
99.XX.YY	475
99.XX.YY	476
<Binname> Full Remove all paper from bin	476
<Supply> almost full	476
<Supply> low OR Supplies low	476
<Supply> very low OR Supplies very low	477
<Tray X> lifting	478
[File System] device failure To clear, press OK	478
[File System] file operation failed To clear, press OK	478
[File System] file system is full To clear, press OK	478
[File System] is not initialized	479
[File System] is write protected	479
Accept bad signature	479
Bad optional tray connection	479
Calibration reset pending	480
Canceling	480
Canceling... <jobname>	480
Checking engine	480
Checking paper path	480
Chosen personality not available To continue, press OK	481
Cleaning do not grab paper	481
Cleaning...	481
Clearing event log	481
Clearing paper path	481
Close front door	482
Close lower right door	482
Close upper right door	482
Creating cleaning page	482
Data received To print last page, press OK	483
EIO <X> disk initializing	483
Event log is empty	483
Expected drive missing	483
HP Secure Hard Drive disabled	483
Incompatible <supply>	484
Incompatible supplies	484
Install <supply>	485
Install <supply> Close rear door	485
Install Fuser Unit	485
Install supplies	486
Install Transfer Unit	486
Internal disk not functional	486
Internal disk spinning up	487
Load Tray <X>: [Type], [Size]	487
Load Tray <X>: [Type], [Size] To use another tray, press OK	487
Manually feed output stack Then press OK to print second sides	488
Manually feed: [Type], [Size]	488
Manually feed: [Type], [Size] To use another tray, press OK	488
Moving solenoid	488
Moving solenoid and motor	489
No job to cancel	489
Paused	489
Performing Color Band Test...	489
Performing Paper Path Test...	489
Please wait...	490
Printing CMYK samples...	490
Printing Color Usage Log...	490
Printing Configuration...	490
Printing Demo Page...	490
Printing Diagnostics Page...	490
Printing Engine Test...	491
Printing Event Log...	491
Printing File Directory...	491
Printing Font List...	491
Printing Fuser Test Page...	491
Printing Help Page...	492
Printing Menu Map...	492
Printing PQ Troubleshooting...	492
Printing Registration Page...	492
Printing RGB Samples...	492
Printing stopped	492
Printing Supplies Status Page...	493
Printing Usage Page...	493
Processing duplex job Do not grab paper until job completes	493
Processing job from tray <X>... Do not grab paper until job completes	493
Processing...	493
Processing... copy <X> of <Y>	494
Ready	494
Ready <IP Address>	494
Remove all print cartridges	494
Remove at least one print cartridge	494
Remove shipping lock from Tray 2	495
Replace <supply>	495
Replace Supplies	496
Restore Factory Settings	497
Restricted from printing in color	497
Rotating <color> motor	497
Rotating motor	497
Size mismatch in Tray <X>	498
Sleep mode on	498
Supplies in wrong positions	498
Tray <X> empty: [Type], [Size]	499
Tray <X> open	499
Tray <X> overfilled	500
Troubleshooting	500
Type mismatch Tray <X>	500
Unsupported drive installed To continue, press OK	500
Unsupported supply in use OR Unsupported supply installed To continue, press OK	501
Unsupported tray configuration	501
Unsupported USB accessory detected Remove USB accessory	501
USB accessory needs too much power Remove USB and turn off then on	502
USB accessory not functional	502
Used supply installed To continue, press OK OR Used supply in use	502
Wrong cartridge in <color> slot	503
Event log messages	504
Print an event log	505
View an event log	506
Clear an event log	506
Clear jams	507
Common causes of jams	507

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Circuit diagrams

Figure 3-39

General circuit diagram

+5VA

PREEXP2

+5VA

PREEXP3

+5VA

PREEXP4

+5VA

PGND

SGND

PREEXP2

Fuser unit

FSRSAFE2

FSRSAFE1

SGND

24VRMT

N.C.

+5VA

PREEXP3

+5VA

PREEXP1

PGND

+24VB

SGND

DRMHP1

+24VB

/DRM3DEC

/DRM3ACC

SGND

CLEI

PREEXP4

/BD3O

/BD2O

/BD1O

DUPSL

DUPMPHA

DUPMI0A

DUPMI1A

DUPMI1B

DUPMI0B

DUPMPHB

2TRNCNT

2TRCNT

2TRS

HVTCLK

1TR2S

1TR1S

HVDACLK

HVDALD

SGND

N.C.

PGND

FAN1LK

SGND

PGND

C/K laser unit

SCN

UNIT

SGND

I2CSDA

WTSSNS

SGND

/DRM3FG

SGND

Drive unit

MP tray unit

REFEEDS

SGND

MPTSL

VSS1

VSS2

VSS3

RMCL

Registration

unit

/FSMFG

/FSMDEC

/FSMACC

PGND

Duplex unit

Inter connect board

OHT sensor

(in)

+24VA

LD2CTRL2

LD2CTRL1

/VDO22

/VDO21

VDO22

VDO21

/BD2I

LD2CTRL0

LD2PDOUT

LD1PDOUT

SGND

/VDO120

VDO120

LD1CTRL2

LD1CTRL1

LD1CTRL0

/VDO110

VDO110

/VDO42

VDO42

LD4CTRL2

LD4CTRL1

LD4CTRL0

/VDO41

VDO41

/BD4I

LD4PDOUT

LD3PDOUT

/VDO32

VDO32

LD3CTRL2

LD3CTRL1

LD3CTRL0

/VDO31

500-sheet PF

DEVHP

HVTCLK

FSLP1

FSLP2

FSRTH3

SGND

FSRTH2

FSRTH1

N.C.

PGND

/VCRST

SGND

/BD4O

/SCN4ACC

/SCN4DEC

/HVRESET

DUPMIDWN

+24VB

FSMFR

+24VB

HVDALD

HVDACLK

HVDATA1

DEV1CNT

DEV2CNT

DEV3CNT

OHT_SNS

PAPOUT

MPTPEND

+5VA

/SCN2ACC

/SCN2DEC

PGND

+24VA

DEV4CNT

DEVMPHB

DEVMIOB

DEVMIOA

DEVMPHA

FAN2D

FAN2LK

FAN3D

VSS4

VIN1

VIN2

VIN3

VIN4

/ZEROX

FAN1D

+5VC

HEATERC

HEATER1

SGND

1TR1:JP801-JP802

1TR2:JP826-JP827

1TR3:JP851-JP852

FAN3LK

1TR4:JP876-JP877

PRI1:JP201-JP202

PRI2:JP226-JP227

PRI4:JP276-JP277

PRI3:JP251-JP252

BL1 :JP301-JP302

BL2 :JP326-JP327

BL3 :JP351-JP352

BL4 :JP376-JP377

RS1 :JP401-JP402

RS2 :JP426-JP427

RS3 :JP451-JP452

RS4 :JP476-JP477

DEV1:JP501-JP502

DEV2:JP526-JP527

DEV3:JP551-JP552

DEV4:JP576-JP577

+5VA

1TR4S

1TR3S

PGND

+24VB

PGND

+24VB

PGND

FAN2LK

FAN3D

FAN3LK

SGND

HVDATA2

I2CSCK

/HVRESET

WTMON

WTMSNS

HVT-D

RD sensor (front)

INPOPIN

PGND

INPOPOT

INPOPCLK

INPOPTMG

+24VA

+5VA

FP_5V

/FPCS

FPCLK

FPI

FPO

DEVMOUT0B

DEVMOUT1B

DEVMOUT0A

DEVMOUT1A

FEEDMOUT0A

FEEDMOUT1A

FEEDMOUT0B

FEEDMOUT1B

SGND

OHT_LED

RTSNS1

RTSNS2

RTSNS3

RTSNS4

Toner collection

box full sensor

+24VA

PGND

DRMFR

/DRM2ACC

/DRM2DEC

/DRM2FG

+24VA

PGND

DRMFR

/DRM1FG

/DRM1DEC

/DRM1ACC

DRMKFR

24VAFU3

24VAFU2

DRMHP2

DRMHP3

Simplex model

E-label (Y)

FAN2D

SGND

1TRHP

24VAFU2

1TRSL

RDSRGAIN1

DSRSR

DSRDR

SGND

DSFDR

DSFSR

RDSFGAIN1

RDSFGAIN0

100V

200V

FSRSNS

RDSRGAIN0

Toner level sensor

RDSRLED

RDSFLED

N.C.

2TRCLK

DUP_SL

+24VB

DUPMPHAD

DUPMPHAND

DUPMPHBD

DUPMPHBND

HVT-T

2TR :T901

Power supply

DC controller

SGND

VBUS

SGND

WAKEENG

/VDOEN

CLEO

VDO11I

/VDO11I

VDO12I

/VDO12I

VD021

/VD021

VD022

/VD022

VDO31

/VDO31

VDO32

/VDO32

VDO41

/VDO41

VDO42

/VDO42

SGND

/TOPO

WAKEVC

VC3VOFF

SGND

+3.3VC

CHK24VB

+24VB

PGND

SGND

+3.3VC

SGND

+3.3VC

PREEXP1

+3.3VA

+5VD

+3.3VC

TOPI

SGND

+3.3VC

SGND

PAPFULL

+3.3VC

FSPRS

+3.3VC

+5VA

+3.3VA

SGND

PSTYP100

+24VB

/FSRMSTOP

CHK24VB

FSR_CURRMS

/RLD

+3.3VA

SGND

Operation

panel

SGND

3.3VFP

SGND

KEYS

+3.3VA

FSRD

CSTLUPS

CSTPEND

SGND

+3.3VC

SGND

CSTSNS

SGND

+3.3VC

24VAFU2

CSTSL

+3.3VC

SGND

CSTPWIDTH

PWRSWON

/SWLED

+5VB

PWRSAVE

VC5VOFF

SGND

LUPMOUT0B

LUPMOUT1A

LUPMOUT0A

+5VDFU1

VDO31

TONLED1

TONLED2

TONLED3

TONLED4

SHIELD

SGND

LUPMOUT1B

Cassette pickup

drive unit

Lifter drive unit

Auto-close

unit

WTLED

USB I/F

J31

J306

J89L

J89LH

J89D

J81D

J81LH

J81L

J24

SR10

J79D

J43

J93LH

J42

J82DH

J71D

J76LH

J74H

J73H

J73D

J73L

J96D

J96LH

J96L

J72H

J72D

J71H

J76L

J92D

J92DH

J92L

J80DH

J80D

J80L

J76D

J780

J113

J201

SL4

J78

J141

11 10 9

J140

J79L

J79LH

J83L

J83DH

J83D

J82L

SR20

M12

J82D

SR2

SR1

SR21

M13

SR13

J105

J30

J303

J301

11 10 9

J112

J304

TB102

J61M

J61F

J600

J95D

J95L

J95LH

J123

J116

J202

J21D

J21DH

J21L

J130

J122

FM1

SR9

J126

J109

J131

J74D

J71L

J75D

J97D

J74L

J98LH

J98L

J108

J98D

IL201

TB211

TB210

TB110

TB111

IL101

J97L

J97DH

J70D

J91L

J75L

J77L

J91DH

J511

J510

J88L

SL1

LED5

J16

13 12 11 10 9

J127

J87DH

J88DH

11 10 9

J88D

J87D

J70LH

J46

J75DH

J91D

J77LH

J701S

J70L

J9S

J109S

J93D

J94D

J94L

J94LH

J93L

J45

J44

J86DH

J86D

J86L

SW3

J85L

J85LH

J57LH

J701

J85S

J702

SR8

J26DH

J26D

J27DH

J27D

J85D

J90L

J90LH

J90D

J107

TP1

J27L

J26L

FM2

J262

J72L

J200

J51D

J250

LED4

SR22

J77D

J137

J58LH

J58L

SW2

J100

TB601

TB501

TB502

TB104

TB602

J111

J110

J60M

J60F

MT4

J50D

J58D

J57D

J106

J121

J20

J101

J114

J138

J50LA

SW4

SR7

LED2

LED1

J55DA

SR11

SR6

SR5

CL1

J87L

SR17

LED7

LED6

LED8

SL3

J84L

J84DH

J84D

SR3

J41

J40

J120

FM3

M10

LED3

J115

J139

J119

J51DH

J50L

J118

J47

J48

SL2

M11

J350

J352

J50DB

TB101

J12

J50DA

MT3

SW1

J261

J117

J15

J50LB

J51L

J57L

J56

J55

J25

J11

J10

SR15

SR14

TH2

TH1

TH3

J251

TB105

TB106

TB107

J351

J107S

RD sensor (rear)

OHT sensor

(out)

E-label (M)

E-label (C)

E-label (K)

Environment

sensor

Y/M laser unit

17 16 15 14

13 12 11

17 16 15 14

13 12 11

ENWW

Tools for troubleshooting

295