Kyocera KM-4230 Service Manual page 439

2A3/4
Code Contents
C920 Deck paper conveying
motor problem*
• No pulse is input within
500 ms of the start-up.
• No pulse is input within
100 ms of the previous
pulse input.
C921 Paper deck motor 1 prob-
lem* 1
• No pulse is input within 20
ms of the start-up.
• No pulse is input within
400 ms of the previous
pulse input.
*1: 42 ppm: optional/52 ppm: standard.
3-5-20
Causes
The deck paper
1 conveying mo-
tor connector
makes poor
contact.
Defective deck
paper convey-
ing motor PCB.
The deck paper
conveying mo-
tor does not ro-
tate correctly
(the motor is
overloaded).
Paper deck
motor 1 con-
nector makes
poor contact.
Paper deck
motor 1 does
not rotate cor-
rectly (the mo-
tor is over-
loaded).
Remarks
Check procedures/
corrective measures
Reinsert the connector. Also
check for continuity within the
connector cable. If none, rem-
edy or replace the cable.
Replace the deck paper con-
veying motor PCB and check
for correct operation.
Check the gears and remedy if
necessary.
Reinsert the connector. Also
check for continuity within the
connector cable. If none, rem-
edy or replace the cable.
Check the gears and remedy if
necessary.