Lexmark Optra N model 240, Service Manual

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Diagnostic Information 2-8
4040 Finisher
Power On Reset (POR) Sequence
When sensors, motors, or solenoids malfunction during POR no
errors are reported from the following sequence except for 1, 2, 3,
and 27. To be sure the finisher successfully completes POR you
must observe the sequence of events.
Confirm that the tray home position sensor (P18) is operating nor-
mally. Measure the voltage between connectors J12-5 and J12-6 on
the finisher driver board. It should be approximately 5 V when the
tray assembly is in the home position, and 0 V, in other positions.
1. The top cover/front cover are checked. If it is open, POR stops.
2. Residual paper is checked for. If paper is present, POR stops.
3. Checks whether the position of the tray assembly is within the
safety range or not. If it is not in the safety range, POR stops.
4. The swing guide closes.
5. The shutter closes.
6. The tray assembly returns to the home position.
7. The shutter opens.
8. The swing guide opens.
9. The alignment plate moves to the home position.
10. The alignment plate moves to the alignment position for A4-ver-
tical size paper.
11. The alignment plate returns to the home position.
12. The alignment plate rotates for 1.5 seconds, and the paddle
solenoid turns on 0.75 seconds after the paper feed motor turns
on.
13. The left edge withdrawal solenoid turns off for 0.5 seconds, on
for 0.5 seconds, and off for 0.5 seconds.
14. The paper feed motor rotates for 4.0 seconds. The reversing
solenoid turns on 2.0 seconds after the paper feed motor turns
on.
15. The swing guide closes.
16. The shutter closes.
17. The tray assembly lifts until tray 3 is positioned at the paper
delivery slot.
18. The tray assembly returns to the home position.
19. Data is collected from the distance detecting sensor.