Konica Minolta bizhub PRO 1050 Service Manual page 649

14. MALFUNCTION CODE
Classification Code
Power SC53-11 The blowout of a SD/CL fuse in
abnor-
mality
SC53-12 The blowout of a SD/CL fuse in
SC53-13 The blowout of a fuse for SD/CL in
SC53-14 The blowout of a fuse for SD/CL in
614
Causes
the tray is detected 1. The 24V
power source for the SD/CL in the
printer control board (PRCB) is
checked. At the start, an error
detection signal (blowout of a fuse
for the solenoid/clutch) is
detected, and an error detection
signal (24V cut off) is also
detected.
the tray is detected 2. The blow-
out of a fuse for the SD/CL in the
printer control board (PRCB) is
checked. At the start, an error
detection signal (blowout of a fuse
for the solenoid/clutch) is
detected. However, an error
detection signal (24V cut off) is not
detected.
the vertical conveyance is
detected 1. The 24V power
source for SD/CL in the printer
control board (PRCB) is checked.
At the start, an error detection sig-
nal (blowout of a fuse for the sole-
noid/clutch) is detected, and an
error detection signal (24V cut off)
is detected.
the vertical conveyance is
detected 2. The blowout of a fuse
for SD/CL in the printer control
board (PRCB) is checked. At the
start, an error detection signal
(blowout of a fuse for the solenoid/
clutch) is detected. However, an
error detection signal (24V cut off)
is not detected.
Field Service Ver3.0 Nov.2006
Resulting Estimated abnormal parts
operation
The main body DC power supply /1 (DCPS/
stops immediately 1)
to turn OFF the
RL1 (main).
Paper feed clutch /1 (CL4), /
2 (CL6)
Separation clutch /1 (CL5), /
2 (CL7)
Printer control board (PRCB)
DC power supply /1 (DCPS/
1)
Tray lock solenoid /1 (SD1),
/2 (SD2), /3 (SD5)
Drum claw solenoid (SD5)
Pre-registration clutch /1
(CL1), /2 (CL3)
Vertical conveyance clutch
(CL2)
Printer control board (PRCB)