Xerox Phaser 7760 Service Manual page 202

009-913 Yellow Imaging Unit Type Mismatch
Imaging Unit Type Mismatch.
Initial Actions
Ensure that the correct Imaging Unit type is installed.
Procedure
Enter Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools > Printer
Status Page > hold the Up and Down buttons simultaneously > Run Service Diagnostics >
OK.
Run the Imaging Unit Sensors test. The display is High.
Y N
Check the wires and connectors (Figure
Unit (PL 4.1).
Replace the Engine Control Board (MCU PWB)
Figure 1 009-913 Yellow Imaging Unit Communication
Status Indicator RAP's
009-913, 009-920
1). If the check is OK, replace the Yellow Imaging
(PL 13.1).
009-920 Yellow Toner Cartridge Empty
The Yellow Toner Cartridge is empty. This fault requires service only if the message appears
before the Toner Cartridge is depleted.
NOTE: Continuous running of high density prints can temporarily deplete the toner supply.
Initial Actions
• Ensure that there is toner and the toner is evenly distributed in the Yellow cartridge.
• Check the Yellow ATC Sensor for blockage or contaminants.
• Check the drive system from the Developer Drive Motor to the Yellow Developer Housing
for damage.
Procedure
Replace the Toner Cartridge (PL
Cartridge Near Empty.
January 2010
2-166
6.1). If the problem continues, go RAP 009-410, Yellow Toner
Phaser 7760 Color Laser Printer
Revised