Service manual

Service Call Conditions
SM 6-17 M052/M053/M054
Trouble-
shooting
SC7xx: Peripherals
721 B Front fence motor error
The jogger fence motor in the finisher is not operating.
 Jogger motor drive is obstructed (jammed paper, paper scraps, etc.)
 The motor harness loose or broken
 Jogger fence HP sensor dirty, loose, defective
 Jogger fence motor defective
740 B Corner stapler motor error
The corner stapler motor in the finisher is not operating.
 Staple jam
 Number of sheets in stack exceeds allowed number of sheets for
stapling
 Stapler motor obstructed
 Stapler motor defective
790 D PFU installation error
Four paper feed units or more are installed in the main machine.
Install three paper feed units or less in the main machine.