5-18
5.2 Self-diagnostics/Machine Malfunctions
The self-diagnostic functions detect troubles in important components of the copier.
When any trouble occurs, the copier is stopped.
(1) User error
NOTE: XXXX will appear in message display.
Error
code
Message (FP-7728/7735) Item See page
U17 CHECK Sorter transport cover failure
SORTER CONDITION
U18 CHECK Copy usage is upper limited.
DEPT. MAXIMUM COPIES