Lexmark Optra N model 240, Service Manual

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4040 Finisher
20. The face-up flapper solenoid turns off for 0.5 seconds, on for 0.5
seconds, and off for 0.5 seconds.
21. The stapler assembly returns to the home position.
22. The stapler assembly moves to the stapling position A4R-size
paper, one point at the corner.
23. The stapler returns to the home position.
24. The staple motor rotates in reverse to return to the stapling
operation home position.
25. The staple motor rotates until the stapling operation goes out of
the home position.
26. The staple motor rotates in reverse until it enters the stapling
operation home position.
27. Checks for staples. If there are no staples, an error is indicated.
28. The shutter opens and the POR is complete.