VI-17. "PRINTER OPEN" message appears when the cover is closed.
<Possible causes>
1. The projection for the delivery cover is damaged.
Action: Replace the delivery cover.
2. The projection for the upper cover is damaged.
Action: Replace the upper cover.
3. The projection for the pick-up unit door is damaged.
Action: Replace the pick-up unit door.
4. The pick-up unit door sensor is defective.
Action: Using the printer driver tester, check the condition of the sensor. If the LED of the
tester does not light up when the pick-up unit door is opened, replace the sensor.
5. Interlock arm does not move smoothly, or is damaged.
Action: Adjust the arm so that it moves smoothly. Replace it if damaged.
6. Connector is loose.
Action: Reconnect connector J1401 on the switch/sensor PCB and connectors J205 and
J221 on the DC controller PCB.
7. The door switch is defective.
Action: Replace the switch/sensor PCB.
8. The DC controller PCB is defective.
Action: Replace the DC controller PCB.
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CHAPTER 4