Left Cover Are Closed; Others - Kyocera KM-2550 Service Manual

2FT
Problem
(27)
The size of paper in
the drawer 1 is not
displayed correctly.
(28)
The size of paper in
the drawer 2 is not
displayed correctly.
(29)
A paper jam in the
paper feed, paper
conveying or fixing
section is indicated
when the power
switch is turned on.
(30)
The message
requesting covers to
be closed is dis-
played when the front
cover and left cover
are closed.
(31)

Others.

1-5-38
Causes
Poor contact in the paper
length switch connector ter-
minals.
Defective paper length
switch.
Poor contact in the drawer
paper length switch connec-
tor terminals.
Defective drawer 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 connec-
tor terminals of safety
switch.
Defective safety switch.
Wiring is broken, shorted or
makes poor contact.
Noise.
Check procedures/corrective measures
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 paper
length switch is turned on. If not, replace the paper length switch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if YC4-5,6,8 on the drawer main PCB goes low when the
drawer paper length switch is turned on. If not, replace the drawer
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 corre-
sponding sensor is not light.
Run maintenance item U031 and turn exit switch on and off manu-
ally. 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 correspond-
ing 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.