Service Guide 17Error Codes andMessagesError messagesThe front panel displays error codes when it encounters certain system failures.These error codes are discussed in the next topic. Except for media jams and othersuch errors, when an error code first occurs, cycle power on the printer to see ifthe error re-occurs.Printer fault messagesCode Front panel message Service messageA6 Jam Inside Top Cover, Open Cover, SeeLabelsA6-Bypass Feeder Jam1. Ensure the correct weight and type of paper is loaded in the feeder. Alsoensure the paper is loaded correctly in the feeder.2. Clean the bypass feeder’s pick roller.3. Test the main feed motor as described in “Motor and clutch tests” onpage 69.4. Replace the main feed motor.5. Replace the engine controller board.A7 Jam Inside Top Cover, Open Cover, SeeLabelsA7-Duplex Entry Jam1. Ensure the correct weight and type of paper is loaded in the currently usedtray. Also ensure the paper is loaded correctly in the tray.2. Clean the duplex unit’s rollers.3. Test the duplex motor and clutch as described in “Motor and clutch tests”on page 69.4. Replace the duplex unit.5. Replace the engine controller board.A10 Jam Inside Top Cover, Open Cover, SeeLabelsA10-Paper Output Jam1. Ensure the correct weight and type of paper is loaded in the currently usedtray. Also ensure the paper is loaded correctly in the tray.2. Clean the exit rollers.3. Ensure the exit rolls rotate freely when the exit roller gear train is rotated.4. At the rear of the printer, inspect the gate which directs the print to theface-up output bin or the face-down output bin.5. Test the fuser motor (which drives the exit gear train) using the testdescribed in “Motor and clutch tests” on page 69.6. Replace the engine controller board.
