Code :

Code: 929.xx
Description: Service Toner Sensor
The printer doesn't register a transition on the toner sensor for a set period oftime. Either the printer's toner sensor is faulty or its print cartridge is defective.
Remedy: The Servicer should follow these steps to resolve this problem: • Use the base sensor test in Diagnostics Menu to inspect the toner sensor's operation. • If the toner sensor is operating correctly, then the problem is the print cartridge.

Code: 930.xx
Description: Service LVPS Error
The LVPS did not detect zero crossing.
Remedy: 1 Turn the printer off, and remove the rear shield. See “Rear shield removal”. Check the cables connected at JMIRR1 and JPH1 on the controller board. Check for damage. Are the cables damaged? Replace the printhead. See “Printhead removal”. Go to step 2.
2 Turn the printer on, and verify the following values at JMIRR1: Are the values approximately correct? Replace the printhead. See “Printhead removal”. Replace the controller board. See “Controller board removal”.

Code: 931.xx
Description: Service Printhead Error
There is no first HSYNC.
Remedy: 1 Turn the printer off, and remove the rear shield. See “Rear shield removal”. Check the cables connected at JMIRR1 and JPH1 on the controller board. Check for damage. Are the cables damaged? Replace the printhead. See “Printhead removal”. Go to step 2.
2 Turn the printer on, and verify the following values at JMIRR1: Are the values approximately correct? Replace the printhead. See “Printhead removal”. Replace the controller board. See “Controller board removal”.

Code: 933.xx
Description: Service Printhead Error
Mirror motor is locked. No HSYNC received.
Remedy: 1 Turn the printer off, and remove the rear shield. See “Rear shield removal”. Check the cables connected at JMIRR1 and JPH1 on the controller board. Check for damage. Are the cables damaged? Replace the printhead. See “Printhead removal”. Go to step 2.
2 Turn the printer on, and verify the following values at JMIRR1: Are the values approximately correct? Replace the printhead. See “Printhead removal”. Replace the controller board. See “Controller board removal”.

Code: 935.xx
Description: Service Printhead Error
Mirror motor is unable to reach operating speed
Remedy: 1 Turn the printer off, and remove the rear shield. See “Rear shield removal”. Check the cables connected at JMIRR1 and JPH1 on the controller board. Check for damage. Are the cables damaged? Replace the printhead. See “Printhead removal”. Go to step 2.
2 Turn the printer on, and verify the following values at JMIRR1: Are the values approximately correct? Replace the printhead. See “Printhead removal”. Replace the controller board. See “Controller board removal”.

Code: 936.xx
Description: Service Transport Motor
The transport motor had an initial lock failure.
Remedy: 1 Turn the printer off, and remove the rear shield. See “Rear shield removal”. Check the cable at JCARB1 for proper connection to the controller board. Is the cable properly connected? Reconnect the cable. Go to step 2.
2 Turn the printer on, and ten measure the values of the cable at JCARB1: Are the values approximately correct? Replace the main drive gear assembly. See “Main drive gear assembly removal”. Replace the controller board. See “Controller board removal”.

Code: 937.xx
Description: Service Transport Motor
The transport motor lost lock.
Remedy: 1 Turn the printer off, and remove the rear shield. See “Rear shield removal”. Check the cable at JCARB1 for proper connection to the controller board. Is the cable properly connected? Reconnect the cable. Go to step 2.
2 Turn the printer on, and ten measure the values of the cable at JCARB1: Are the values approximately correct? Replace the main drive gear assembly. See “Main drive gear assembly removal”. Replace the controller board. See “Controller board removal”.