TroubleshootingService Manual 8-178.5 Error Message HandlingADC Not Confirm Error:The ADC is defective. 1. Turn the printer OFF, wait 30 seconds then turn theprinter back ON.2. Replace the main board if the error recurs.Cover OpenDoor A or Door C is not properly closed. 1. DEVE Cover (Door A) or the duplex cover (Door C) isopen. Open and close correctly.2. Check the condition of the cover open microswitchassembly. Replace if defective.3. Check the condition of the cover. Replace the cover ifdefective.DEVE Motor ErrorThe developer motor may stop working because ofa harness or connector fault, increased torque inany one of the toner cartridges due to rollerssticking, a power supply fault or a fault on the mainboard.1. Open the DEVE Cover and check each toner cartridge toensure the rollers rotate.■ Turn the rollers by hand and check how difficult it is torotate the rollers.■ Replace the toner cartridge if it seems excessivelytight.2. Open the rear cover and check if the DEVE motorharness is fully seated and not damaged.3. Open the main board cover and check the harnessconnected to the DEVE drive board (CN5 main board toCN1 DEVE drive) is fully seated and not damaged.■ Replace the harness if defective.4. Check the power supply to the main board.■ Replace the LVPS if any DC outputs are missing.■ Replace the main board if the power supply from theLVPS is working properly.
