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C7791B DesignJet 120nr Printer

HP DesignJet 120nr (C7791B)

MFG Part Number: C7791B 2400 x 1200 DPI

HP DesignJet Ultra Low End printers service manual

C7791B Service ManualView Service Manual Buy C7791B Service ManualBuy Printed Manual

Manual contents and shortcuts


Conventions
Part Numbers
Usage Report Page
Information Page
NVM Contents Page
Introduction
Errors and Warnings
System Error Codes
Warnings
Startup track mode
Emergency Firmware Upgrade
System Error Codes - Explanation
Introduction
Launching the System Maintenance Utility (Designjet 120/120nr)
Launching the System Maintenance Utility (Designjet 30, 30n, 90, 90r, 130, 130nr)
Color Calibration
System Maintenance Utility (HP Designjet 120/120nr)
Get Printer Information
Align Printheads
Clean Printheads
Update Firmware
Print Test Page
Calibrate Paper Feed
Reset Jetdirect Card
Main Menu - Printer Front Panel Replication
System Maintenance Utility (Designjet 30, 30n, 90, 90r, 130, 130nr)
Color Calibration
Align Printheads
Clean Printheads
Check Image Quality
Calibrate Paper Feed
Get Printer Information
Update Firmware
Reset Jetdirect Network Card
How to Access Restricted Access Utilities
Utilities
Enable/Disable Buzzer
Transport Position
Printhead Recovery
Network Card Reset
Set to Factory Defaults
Hard EEPROM reset
Set Flag to Prime Tubes
PRS Adjustment
When Required
Manual PRS Adjustment
Factory Accuracy Calibration
Parts replacement and associated calibrations
Cover Assemblies
Cover Assemblies
Printer Labels
Right Hand Assemblies
Left Hand Assemblies
Scan-Axis Assemblies
Top Paper Path Assemblies (1 of 2)
Top Paper Path Assemblies (2 of 2)
Rear Paper Path Assemblies
Paper Feed Assemblies
Cable Harnesses
Ink Supplies & Accessories (1of 4)
Ink Supplies and Accessories (2 of 4)
Ink Supplies & Accessories (3 of 4)
Ink Supplies & Accessories (4 of 4)
Rollfeed Components
Printer Stand and Basket
Electrostatic Discharge (ESD) Precautions
Introduction
Safety Precautions
Required Tools
Removal
Top Cover
Front Cover (Applicability: 10ps, 20ps, 30, 30n, 50ps)
Removal
Center Cover
Removal
Removal
Right End Cover
Left End Cover
Removal
Ink Supply Station Cover (Applicability: 70, 100, 100plus, 110plus)
Removal
Ink Supply Station
Removal
Electronics Module
Removal
Power Supply Unit
Removal
Removal
Service Station
Front Panel
Removal
Encoder Strip
Removal
Carriage Motor
Removal
Cleanout Assembly
Removal
Ink Supply Tubes
Removal
Carriage Assembly (Applicability: 70, 100, 100+, 110+, 120, 120nr)
Removal
Carriage Assembly (Applicability: 10ps, 20ps, 30, 30nr, 50ps, 90, 90r, 130, 130nr)
Removal
Installation of the Carriage Assembly - IMPORTANT (Only applicable to 90, 90r, 130, 130nr)
Carriage Belt
Removal
Removal
Starwheel Assembly (Applicability: 10ps, 20ps, 30, 30n, 50ps)
Removal
Starwheel Assembly
Print Platen Assembly
Removal
Output Separator (Applicability: 10ps, 20ps, 30, 30n, 50ps)
Removal
Ramp Motor Assembly
Removal
Output Mechanism Assembly (Applicability: 10ps, 20ps, 30, 30n, 50ps)
Removal
Removal
Spittoon (If Installed in the Printer)
Pivot Assembly
Removal
Feed Roller Assembly (Applicability: 10ps, 20, 30, 30n, 50ps)
Removal
Feed Roller Assembly
Removal
Pick Assembly (Applicability: 10ps, 20ps, 30, 30n, 50ps)
Removal
Pick Assembly
Removal
Pinch Assembly (Applicability: 10ps, 20ps, 30, 30n, 50ps)
Removal
Lower Paper Guide (Applicability: 10ps, 20ps, 30, 30n, 50ps)
Removal
Inner Paper Guide (Applicability: 10ps, 20ps, 30, 30n, 50ps)
Removal
Inner Paper Guide
Not applicable to 10ps, 20ps, 30, 30n, 50ps
Removal
OOPS Sensor
Removal
Paper-Axis Motor Drive Assembly (Applicable only to 10ps, 20ps, 30, 30n, 50ps)
Removal
Paper-Axis Motor Assembly (Applicability: 90, 90r, 120, 120nr, 130, 130nr)
Removal
Bypass Platen (Applicability: 90, 90r, 120, 120nr, 130, 130nr)
Removal
Bypass Platen Actuator (Applicability: 90, 90r, 130, 130nr)
Removal
Cleaning Information
Maintenance
Lubrication Information
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