Minolta CF910 Service Manual page 393

Code Description
C0520 Abnormally high fusing
temperature (Defec-
tive upper fusing heat-
ing system)
C0521 Abnormally high fusing
temperature (Defec-
tive lower fusing heat-
ing system)
C0E (Erase Lamp malfunctions)
Code Description
C0E00 Main Erase Lamp
LA2's failure to turn
ON
C0F , C3500, C3F90 (Sensor malfunctions)
Code Description
C0F30 ATDC Sensor (C) low
density failure
C0F31 ATDC Sensor (C) high
density failure
C0F32 ATDC Sensor (M) low
density failure
C0F33 ATDC Sensor (M) high
density failure
C0F34 ATDC Sensor (Y) low
density failure
C0F35 ATDC Sensor (Y) high
density failure
C3500 Bk Developing Unit
malfunction
C3F90 T-Base failure
The surface temperature of the Upper Fusing Roller
remains 180°C or more for a continuous 1-sec. period
after the copier has completed warming up.
The surface temperature of the Lower Fusing Roller
remains 180°C or more for a continuous 1-sec. period
after the copier has completed warming up.
The Main Erase Lamp Out signal remains ON for a con-
tinuous 1-sec. period or more while LA2 is OFF.
Ten or more consecutive readings have been taken of
2% or less.
Forty or more consecutive readings have been taken of
11% or more.
Ten or more consecutive readings have been taken of
2% or less.
Forty or more consecutive readings have been taken of
11% or more.
Ten or more consecutive readings have been taken of
2% or less.
Forty or more consecutive readings have been taken of
11% or more.
During predrive, after a copy cycle has been completed,
or during a multi-copy cycle:
A. The developing efficiency, as detected through
AIDC detection, is 0.1 mg/cm
consecutive times.
B. The developing efficiency, as detected through
AIDC detection, is 0.7 mg/cm
consecutive times.
"C3500" is displayed when either one of the above is
detected five consecutive times.
The T-Base (T-Base half turn) signal is not detected
even after the lapse of 10 sec. after the start of predrive.
T-27
Detection Timing
Detection Timing
Detection Timing
2
/100V or less three
2
/100V or more three