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HP Designjet 9000s Service Manual - Page 221

Left Subtank Cover, Removal

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Removal and Installation Left Subtank Cover Removal Switch off the product and remove the power cable. 1. Remove the Upper Side Cover (Left) ⇒ Page 8-4. 2. Remove the Lower Side Cover (Left) ⇒ Page 8-8. 3. Remove two screws that secure the Left Electronics Module Side Trim to the Printer. 4. Remove the Left Electronics Module Side Trim from the Printer. 5. Remove two screws that secure the Left Subtank Cover to the Printer. HP Designjet 9000s Series Printer Service Manual 8-9

Section	Page
Purpose	4
Readership	4
Part Numbers	4
Conventions	4
Safety Precautions	4
Table of Contents	8
Troubleshooting	9
Introduction	10
Troubleshooting System Error Codes	10
Performing a Service Test on a Failed Assembly	10
Performing the Necessary Service Calibrations or Adjustments	11
Solving Print Quality Problems	11
The Printer does not Power ON	11
Cover Sensors are not Working	11
The File Sent is Not Processed Immediately	11
Paper Jams Occur Frequently	12
Print Speed is Very Slow	12
No Ink Message when there is Enough Ink	12
Abnormal Sound Coming from the Printer	12
Front Panel is Not Working	12
Heater Panel is Not Working	12
Solving Heater Problems	13
Special Power On Procedure	14
Both NVRAM and Main PCA are Replaced Together	15
System Error Codes	17
Introduction	18
Self-Diagnostic Errors at Power On	19
System Error Codes	23
Heater Error Codes	31
System Error Codes	34
Printhead Adjustment	35
Introduction	36
Tools Required	36
Calibrate the Printhead Adjustment Jig	37
Install the Printhead Adjustment Jigs in the Carriage	39
Set Printhead Voltage	43
Print the Printhead Adjustment Pattern	44
Perform Printhead Position Correction	45
Print the Check Printhead Pattern	48
Adjust the Printhead	49
Tip to Speed-Up the Printhead Adjustment	53
Maintenance Mode	57
Introduction	58
Diagnostics - Self Test	58
Phone Support	58
Maintenance Mode Menus	59
Entering the Maintenance Mode	63
Basic Menu Operation	64
P. ADJ. (Printer Adjustment)	66
PH. ADJ (Printhead Adjustment)	73
PH. MAIN (Printhead Maintenance)	79
MNFG-PRN (Manufacturing Patterns)	100
SETUP	101
FEED	108
SENSORS	109
ELECT (Electronics)	115
VOLT (Voltage Check)	125
MOTORS	126
SYSTEM INF	133
COUNTER	135
Heater Panel Maintenance Mode	143
Adjustments and Calibrations	145
Adjustments	146
Calibrations	146
Belt Tension Adjustment	147
Carriage Height Adjustment	149
Scan-Axis Belt Tension Adjustment	153
Paper-Axis Belt Tension Adjustment	155
Wiping Station Height Adjustment	157
Wiper Belt Tension Adjustment	160
Wiper Blade Height Adjustment	161
Capping Station Height Adjustment	164
Carriage Shield Height Adjustment	166
Wiping Position Calibration	167
Capping Position Calibration	169
Line Sensor Calibration (Side Margin)	171
Line Sensor Calibration (Top Margin)	172
Print Quality	173
Print Quality Troubleshooting Actions	174
Print Quality General Advice	174
Using the IQ Print to Troubleshoot	175
Horizontal Lines Across the Image (Banding)	177
Images are Blurred	178
Bleeding, Repelling or Mottling Problems	178
Image is Completely Blank or Faded	179
Output Only Contains a Partial Print	179
The Printer Area is Stained	179
Part of Image is Missing at the Start of the Print	180
Print Quality is not Improved After Printhead Recovery	180
Parts and Diagrams	181
Removal and Installation	213
Introduction	214
Safety Precautions	214
Electrostatic Discharge (ESD) Precautions	214
Rear Cover	215
Removal	215
Upper Side Cover (Left or Right)	216
Removal	216
Top Side Cover (Left or Right)	217
Removal	217
Top Cover	218
Removal	218
Lower Side Cover (Left or Right)	220
Removal	220
Left Subtank Cover	221
Removal	221
Right Subtank Cover	223
Removal	223
Lower Capping Cover	225
Removal	225
Capping Door	227
Removal	227
Lower Wiping Cover	228
Removal	228
Wiping Door	230
Removal	230
Ink Cartridge Door (Left or Right)	231
Removal	231
Rear Ink Cartridge Cover (Left or Right)	232
Removal	232
Electronics Module Cover	233
Removal	233
Firmware Access Cover	236
Removal	236
Front Panel	237
Removal	237
Heater Panel	239
Removal	239
Front Heater	241
Removal	241
Rear Heater	243
Removal	243
Center Platen	245
Removal	245
Vacuum Fan	246
Removal	246
Main PCA	247
Removal	247
NVRAM	251
Removal	251
Head Relay Board	252
Removal	252
Power Supply Unit	255
Removal	255
Heater Relay Assembly	258
Removal	258
Waste Bottle Sensor	261
Removal	261
End-of-Media Sensor	264
Removal	264
Front Media Sensor	266
Removal	266
Rear Media Sensor	268
Removal	268
Media Lever Sensor	269
Removal	269
Rear Cover Sensor	271
Removal	271
Home Position Sensor	276
Removal	276
Paper-Axis Motor and Belt	278
Removal	278
Scan-Axis Motor and Belt	282
Removal	282
Carriage Drive Assembly (Includes Carriage Belt)	285
Removal	285
Encoder Strip	288
Removal	288
Trailing Cable	289
Removal	289
Printhead Cooling Fans	294
Removal	294
Printhead	298
Removal	298
Printhead Connector Assembly	301
Removal	301
Carriage PCA	303
Removal	303
Encoder Sensor	307
Removal	307
Line Sensor	309
Removal	309
Ink Pump Assembly	311
Removal	311
Ink Supply Station (Left or Right)	313
Removal	313
IC Door Sensor (Left or Right)	316
Removal	316
Subtank Sensors	318
Removal	318
Capping Station Assembly	323
Removal	323
Capping Unit	332
Removal	332
Prime Assembly	333
Removal	333
Solenoid Assembly	337
Removal	337
Wiping Station Assembly	341
Removal	341
Wiper Cleaning Assembly	345
Removal	345
Wiper Blade	346
Removal	346
Wiper Belts	348
Removal	348
Pinchwheel Assembly	352
Removal	352
Preventive Maintenance	357
Printheads Maintenance	358
Daily Inspection and Maintenance	359
When Leaving the Printer Off for more than 2 weeks	369
When Returning to the Printer after more than 2 weeks	369
If the Printer is Switched Off for less than 2 weeks	370
If the Printer is Switched Off for more than one Month	370