Kyocera Mita DF-75, Service Manual

Page: 163 / 199

5-28
CHAPTER 5 TROUBLESHOOTING
5 Self Diagnosis
5.1 Outline
The CPU on the machine’s finisher controller PCB is equipped with a mechanism to check
the machine condition as needed; when it detects a fault, the machine communicates the fact to
the host machine in the form of a code and a detail code.
The host machine indicates the code on its control panel. (The detail code may be checked in
the host machine’s service mode.)
5.2 Errors
5.2.1 Finisher/Saddle Unit
Code
C0440
C8390
C8010
C8300
C8320
Detail
—
0 1
0 1
0 2
0 1
0 2
0 1
0 2
Error
• Data communica-
tion error
• Back-up memory
• Feed motor (M1)
• Stack feed roller
(upper) home
position sensor
(PI12)
• Delivery motor
(M3)
• Delivery belt home
position sensor
(PI7)
• Alignment motor
(rear; M5)
• Aligning plate
home position sen-
sor (rear; PI5)
Timing of detection
• The communication between the host machine
and the finisher is interrupted. This error is de-
tected by the host machine.
• The checksum for the finisher controller PCB has
an error when the power is turned on.
• The stack feed roller (upper) does not leave the
stack feed roller (upper) home position sensor
when the feed motor has been driven for 2 sec.
• The stack feed roller (upper) does not return to
the stack feed roller (upper) home position sensor
when the feed motor has been driven for 2 sec.
• The delivery belt does not leave the delivery belt
home position sensor when the stack delivery
motor has been driven for 3 sec.
• The delivery belt does not return to the delivery
belt home position sensor when the stack deliv-
ery motor has been driven for 3 sec.
• The aligning plate (rear) does not leave the align-
ing plate home position sensor (rear) when the
alignment motor has been driven for 3 sec.
• The aligning plate (rear) does not return to the
aligning plate home position sensor (rear) when
the alignment motor (rear) has been driven for 3
sec.
T05-502-01