Kyocera KM-2020

2C9
1-5-31
Problem Causes Check procedures/corrective measures
(20)
The message re-
questing paper to be
loaded is shown
when paper is
present in the
drawer.
(21)
The size of paper in
the drawer is not
displayed correctly.
(22)
A paper jam in the
paper feed, paper
conveying or fixing
section is indicated
when the power
switch is turned on.
(23)
The message re-
questing covers to
be closed is dis-
played when the
front cover and left
cover are closed.
(24)
Others.
Poor contact in the paper
switch connector termi-
nals.
Defective paper switch.
Poor contact in the paper
length switch connector
terminals.
Defective paper length
switch.
A piece of paper torn from
copy paper is caught
around registration switch,
exit switch or feedshift
switch.
Defective registration
switch.
Defective exit switch.
Defective feedshift switch.
Poor contact in the con-
nector terminals of safety
switch.
Defective safety switch.
Wiring is broken, shorted
or makes poor contact.
Noise.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
If the level of YC8-2 on the engine PCB does not change when
the paper switch is turned on and off, replace the paper switch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if YC22-1,2,4 on the engine PCB goes low when the pa-
per length switch is turned on. If not, replace the paper length
switch.
Check and remove if any.
Run maintenance item U031 and turn registration switch on and
off manually. Replace registration switch if indication of the cor-
responding sensor is not light.
Run maintenance item U031 and turn exit switch on and off
manually. Replace exit switch if indication of the corresponding
sensor is not light.
Run maintenance item U031 and turn feedshift switch on and off
manually. Replace feedshift switch if indication of the corre-
sponding sensor is not light.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check for continuity across each 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.