Kyocera KM-1820 Service Manual page 74

Problem Causes/check procedures
(5) Check if the MP feed roller
A paper jam in the is deformed.
paper feed section
Defective registration sen-
is indicated during
sor.
copying or printing
(multiple sheets in
the MP tray). Check if the registration
Jam code 20 clutch malfunctions.
Electrical problem with the
registration clutch.
(6) Check if the feed roller is
A paper jam in the deformed.
paper feed section
Defective registration sen-
is indicated during
sor.
copying or printing
(multiple sheets in
the cassette). Check if the registration
Jam code 21 clutch malfunctions.
Electrical problem with the
registration clutch.
(7) Check if the feed roller of
A paper jam in the the optional cassette is
paper feed section deformed.
is indicated during
Defective registration sen-
copying or printing
sor.
(multiple sheets in
the optional cas-
sette). Check if the registration
Jam code 22 clutch malfunctions.
Electrical problem with the
registration clutch.
(8) Defective exit sensor.
A paper jam in the
fusing section is in-
Check if the registration
dicated during copy-
clutch malfunctions.
ing or printing (jam
in the fusing sec- Electrical problem with the
tion). registration clutch.
Jam code 40
Check if the upper and
lower registration rollers
contact each other.
Check if the lower exit
roller and exit pulleys con-
tact each other.
Check if the press roller is
extremely dirty or de-
formed.
Check if the separators
are dirty or deformed.
Corrective measures
Check visually and replace any deformed roller.
Check if YC8-7 on the engine PWB remains low when the regis-
tration sensor is turned on and off. If it does, replace the regis-
tration sensor.
Check and remedy if necessary.
Check.
Check visually and replace any deformed roller.
Check if YC8-7 on the engine PWB remains low when the regis-
tration sensor is turned on and off. If it does, replace the regis-
tration sensor.
Check and remedy if necessary.
Check.
Check visually and replace any deformed roller.
Check if YC8-7 on the engine PWB remains low when the regis-
tration sensor is turned on and off. If it does, replace the regis-
tration sensor.
Check and remedy if necessary.
Check.
Check if YC7-7 on the engine PWB remains low when the exit
sensor is turned on and off. If it does, replace the exit sensor.
Check and remedy if necessary.
Check.
Check visually and remedy if necessary.
Check visually and remedy if necessary.
Clean or replace if necessary.
Clean or replace if necessary.
2GM
1-5-5