Electrical Problems - Kyocera Mita DP-100 Service Manual

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1-3-3 Electrical problems

Problem
(1) Defective original feed mo-
The original feed tor coil.
motor does not op-
The connector terminals of
erate.
the original feed motor
make poor contact.
Defective DP driver PCB.
5 V DC is not input be-
tween YC1-16 and 1-4 of
the DP driver PCB termi-
nals, or 24 V DC is not in-
put between YC1-2 and 1-
3.
(2) The connector terminals of
A table copy starts the DP original cover
even if sets an origi- switch make poor contact.
nal on DP.
Defective DP original
cover switch.
Broken DP original detec-
tion switch actuator.
The connector terminals of
the DP original detection
switch make poor contact.
Defective DP original de-
tection switch.
(3) A piece of paper torn from
An original jams an original is caught
when the main around the DP timing
switch is turned on. switch.
Defective DP timing
switch.
The connector terminals of
the DP original detection
switch make poor contact.
Defective DP original de-
tection switch.
1-3-6
Causes
Check for continuity across the coil. If none, replace the original
feed motor.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Inspect the continuity between coils of the original feed motor
and at the connector terminals. If the continuity is verified, re-
place the DP driver PCB.
Check the connector insertion state of the interface cable and
the continuity between the connectors. If any problem is found,
repair or replace the interface cable. If no problem is found
about the interface cable, check the PCB in the copier.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Run maintenance item U244 and turn DP original cover switch
on and off manually. Replace DP original cover switch if indica-
tion of the corresponding switch is not light.
Check visually and replace the DP original cover switch if its ac-
tuator is broken. Remedy or replace the DP original cover
switch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Run maintenance item U244 and turn DP original detection
switch on and off manually. Replace DP original detection switch
if indication of the corresponding switch is not light.
Remove any found.
Run maintenance item U244 and turn DP timing switch on and
off manually. Replace DP timing switch if indication of the corre-
sponding switch is not light.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Run maintenance item U244 and turn DP original detection
switch on and off manually. Replace DP original detection switch
if indication of the corresponding switch is not light.
Check procedures/corrective measures