Others - Kyocera Mita KM-1505 Service Manual

Problem
(15) Poor contact in the high-
Transfer charging is voltage transformer PCB
not performed. connector terminals.
Defective main PCB.
Defective high-voltage
transformer PCB .
(16) Poor contact in the
No developing bias developing bias wire.
is output.
Poor contact in the high-
voltage transformer PCB
connector terminals.
Defective main PCB.
Defective high-voltage
transformer PCB .
(17) A piece of paper torn from
A paper jam in the copy paper is caught
paper feed, paper around the registration
conveying or fixing switch or eject switch.
section is indicated
Defective registration
when the main
switch.
switch is turned on.
Defective eject switch.
(18) Poor contact in the
The message connector terminals of
requesting covers to safety switch.
be closed is
Defective safety switch.
displayed when the
front cover and
paper conveying
cover are closed.
(19) Wiring is broken, shorted

Others.

or makes poor contact.
Noise.
Causes
See page 1-5-12.
See page 1-5-18.
Check and remove if any.
With 5 V DC present at CN3-14 on the main PCB, check if CN3-
3 on the main PCB remains low when the registration switch is
turned on and off. If it does, replace the registration switch.
With 5 V DC present at CN11-6 on the main PCB, check if
CN11-5 on the main PCB remains low when the eject switch is
turned on and off. If it does, replace the eject switch.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check for continuity across the contacts of the switch. If there is
no continuity when the switch is on, replace it.
Check for continuity. If none, repair.
Locate the source of noise and remove.
Check procedures/corrective measures
2BT
1-5-21