Minolta Di551 Service Manual page 509

ELECTRIC PARTS LIST
Warning
Classification
Code
Fan abnor- F22-01
mality
F22-02
Motor abnor- F23-01
marity
F23-02
F23-03
High-voltage F28-01
power error
F28-02
F28-03
Cause
An error for SFAN_EM signal is
detected when 2 seconds have
passed since FM4 (developing suc-
tion) has turned ON. The error does
not clear after 2 seconds from the
OFF/ON operation.
An error for CLEAN_EM signal is
detected when 2 seconds have
passed since FM5 (cleaner cooling)
has turned ON. The error does not
clear after 2 seconds from the OFF/
ON operation.
An error for TONERM_EM signal is
detected when 7 seconds have
passed since M13 (toner bottle) has
turned ON.
An error for DEVM_EM signal is
detected when more than 1 second
has passed since M3 (developing)
has turned ON.
An error for DRUM_EM signal is
detected when more than 3 seconds
have passed since M2 (drum) has
turned ON.
5 consecutive charging ON/OFF
operations have been executed since
the charging error detection signal
has been detected while charging is
turned ON.
5 consecutive transfer ON/OFF oper-
ations have been executed since the
transfer error detection signal has
been detected while transfer is
turned ON.
5 consecutive separation ON/OFF
operations have been executed since
the separation error detection signal
has been detected while separation
is turned ON.
Machine response
The machine stops
immediately and turns
OFF RL1 (main).
4-40
Estimated
abnormal parts
FM4 (developing suction)
PRCB (printer control board)
FM5 (cleaner cooling)
ADUDB (ADU drive board)
PRCB (printer control board)
M13 (toner bottle)
PRCB (printer control board)
M3 (developing)
PRCB (printer control board)
M2 (drum)
PRCB (printer control board)
HV (high-voltage unit)