6-11
FS-1900
6-1-2 Diagnostic (Service error messages)
The printer does not operate when a message beginning with “Call service ####” or “Call
service person F0##” is displayed. The message is categorized as follows:
Meaning Suggested causes Corrective action
Communication error
between engine board
and option paper
feeder PF-60.
Defective gate array U204 on the engine board
(KP-864).
Blown-out fuse (F202) on the engine board.
Improper installation between printer and option
paper feeder.
Defective harness (S02400) between engine
board and option unit interface connector.
Improper connector insertion.
Defective option paper feeder PF-60.
(1) 0420 - Option paper feeder PF-60 communication error
Replace engine board
(KP-864). See page 5-22.
Follow installation
instruction carefully
again.
Replace harness
(S02400).
Remedy.
Refer to option paper
feeder PF-60’s Service
Manual.
Meaning Suggested causes Corrective action
Communication error
between engine board
and option sorter
SO-60.
(2) 0440 - Option sorter SO-60 communication error
Replace engine board
(KP-864). See page 5-
22.
Follow installation
instruction carefully
again.
Replace main board
(KP-948). See page 5-
22.
Refer to option sorter
SO-60’s Service
Manual.
Defective gate array U204 on the engine board
(KP-864).
Blown-out fuse (F202) on the engine board.
Improper installation between printer and option
sorters.
Improper connector insertion.
Defective main board (KP-948).
Defective option sorter SO-60.
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