Service manual

2DA/2DB
1-5-38
Problem Causes Check procedures/corrective measures
(27)
A paper jam in the
paper feed, paper
conveying or fixing
section is indicated
when the power
switch is turned on.
(28)
The message re-
questing covers to
be closed is dis-
played when the
front cover and left
cover are closed.
(29)
Others.
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.
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.