Specifications

6.10 Printer Open
6.10 Printer Open
Explanation: This message appears when the top door of the printer is open.
When the top door is closed, a tang attached to the door presses down the
two-pole door open switch. One pole shorts to ground. Pole two
connects +24VA supply to the +24VB.
The plastic tang on the closed top door depresses the linkage spring, which
presses the black plastic stud, which depresses the door open switch. The
switch is soldered on the paper feed controller board. The black plastic stud is
mounted on the paper feed unit housing. If the top door fails to properly latch,
the pressure from the linkage and the switch lever springs is strong enough to
hold open the top door.
To clear this error, close the top cover.
Signal diagram reference: See Figures 2–8, 2–4, and 6–2 for wiring
diagrams.
Action: Do the following:
1. Make sure the top cover is installed correctly, as shown in Section 9.20.
2. Open and inspect the top cover and tang. If you see any broken or damaged
plastic, replace the top cover.
3. Use a small screwdriver to manually depress the spring linkage.
• If the printer rollers start, inspect the top door, top door, and spring
linkage.
• If the linkage is firmly stuck, inspect the switch and black plastic
stud.
4. Inspect the cabling and connectors that run between J201 on the DC
control board and J601 on the feed unit controller. Make sure both
connectors are securely plugged in and the cable is in good condition.
5. Swap the following FRUs:
• DC control board
• Feed unit controller
• Feed unit and option interconnect
6–14 Power and Control Panel FIPs