Description: Development Motor · If there is noise from the cartridge during printing, replace the cartridge, or the development gear and/or development motor
Causes: · Poor cable connections · Defective development motor (especially if +24 and +5 V supplies arrive at the motor normally) · Defective IOD2 board · Defective IOD1 board · Defective MCTL board
Code: 23
Description: Main Motor Error
Causes: · Defective belt cartridge – replace if not turning smoothly · Defective fusing unit – replace if not turning smoothly · Poor cable connections · Defective main motor (especially if +24 and +5 V supplies arrive at the motor normally) · Defective IOD2 board · Defective IOD1 board · Defective MCTL board
Causes: · Charge corona unit not installed properly · Corona wire cut or shorted – replace the wire and maybe the belt cartridge as well · Check the cable and terminal connections · Dirty CHV terminal socket · Defective high voltage unit (HVU) · Defective IOD1 board · Defective MCTL board
Code: 31
Description: Fusing Thermistor Error
Causes: · Fusing unit incorrectly installed · Fusing unit connector not connected properly · Loose cable connection · Defective fusing unit · Defective high voltage unit (HVU) · Defective IOD1 board · Defective MCTL board
Code: 33, 34, 35
Description: Fusing Unit Temperature Errors
Causes: If the fusing lamps turn on and off normally: · Defective fusing lamp · Defective fusing unit · Defective dc power supply board · Defective MCTL board If one or both fusing lamps do not turn on and off normally: · Thermofuses not connected properly · Fusing unit not installed properly · Damaged fusing connector · Defective fusing lamp contact terminal · Defective fusing lamp · Defective fusing unit · Defective dc power supply board · Defective MCTL board