2PR
1-4-37
(12)A paper jam in
the paper feed sec-
tion, paper conveying
section, fuser sec-
tion or duplex section
is indicated when the
power switch is
turned on.
A piece of paper torn from
copy paper is caught
around registration switch,
duplex conveying sensor or
paper exit sensor.
Check and remove if any.
Defective registration sen-
sor or duplex conveying
sensor.
Replace the registration sensor or duplex conveying sensor.
Defective paper exit sensor. Replace the paper exit PWB.
Defective engine PWB. Replace the engine PWB (See page 1-5-28).
(13)The message
requesting front
cover to be closed is
displayed when the
front cover is closed.
Defective harness or
improper connector inser-
tion.
Reinsert the connector. Also check for continuity within the con-
nector harness. If none, remedy or replace the harness.
Front cover open/close switch - Paper exit PWB (YC6)
Paper exit PWB (YC1) - Engine PWB (YC602)
Defective front cover open/
close switch.
Replace the front cover open/close switch.
Defective paper exit PWB. Replace the paper exit PWB.
Defective engine PWB. Replace the engine PWB (See page 1-5-28).
(14)The message
requesting cover to
be closed is dis-
played when the top
cover is closed.
Defective harness or
improper connector inser-
tion.
Reinsert the connector. Also check for continuity within the con-
nector harness. If none, remedy or replace the harness.
Interlock switch - Engine PWB (YC13)
Defective interlock switch. Replace the interlock switch.
Defective engine PWB. Replace the engine PWB (See page 1-5-28).
(15)The message
requesting left cover
to be closed is dis-
played when the left
cover is closed.
Defective harness or
improper connector inser-
tion.
Reinsert the connector. Also check for continuity within the con-
nector harness. If none, remedy or replace the harness.
Left cover switch - Engine PWB (YC14)
Defective left cover switch. Replace the left cover switch.
Defective engine PWB. Replace the engine PWB (See page 1-5-28).
(16)Defective waste
toner box detecting.
Defective harness or
improper connector inser-
tion.
Reinsert the connector. Also check for continuity within the con-
nector harness. If none, remedy or replace the harness.
Waste toner full sensor - Engine PWB (YC12)
Defective waste toner full
sensor.
Replace the waste toner full sensor.
Defective engine PWB. Replace the engine PWB (See page 1-5-28).
(17)Others. Wiring is broken, shorted or
makes poor contact.
Check for continuity. If none, repair.
Problem Causes Check procedures/corrective measures