Xerox COLORQUBE 8870

October 2012
6-1
ColorQube 8570/8870 Service Manual
General Troubleshooting
Xerox Internal Use Only - Revised, 3rd Revision
6 General Troubleshooting
Printer Power On Process............................................................................................... 6-3
Hidden Service Menu...................................................................................................... 6-5
Service Diagnostics......................................................................................................... 6-6
Service Diagnostics Menu Maps..................................................................................... 6-10
Service Diagnostics Tests............................................................................................... 6-12
General Troubleshooting................................................................................................. 6-25
Electrical Troubleshooting............................................................................................... 6-26
Control Panel Malfunction............................................................................................... 6-41
Media Path and Transport Problems .............................................................................. 6-42
Noise
Noise Troubleshooting .................................................................................................... 6-45
OF1 Drum Ground Plane Rubbing.................................................................................. 6-46
OF2 Drum Knocking (Drum Belt) .................................................................................... 6-47
OF3 Y-Axis Motor Bearing .............................................................................................. 6-47
OF4 Tray 1 - Squeaking.................................................................................................. 6-48
OF5 Tray 1 - Buzzing, Grinding ...................................................................................... 6-48
OF6 Process Motor Gear Box (Transfix Output Gear).................................................... 6-49
OF7 Process Drive Gear Box (Compound/ Helical Gear)............................................... 6-49
OF8 Gear Skipping (Head Maintenance Train/ Media Path Gear Box) .......................... 6-50
OF9 Other .......................................................................................................................6-50
Operating Systems and Application Problems................................................................ 6-51
Network Problems........................................................................................................... 6-53
USB Port Testing ............................................................................................................ 6-54
Firmware Upgrade .......................................................................................................... 6-55
Printhead Cleaning Cycle................................................................................................ 6-55
Printhead Troubleshooting Checklist .............................................................................. 6-56