Dell 1600n - Multifunction Laser Printer B/W Service Manual page 92

Troubleshooting
7.1.3 JAM 1
1. Recording paper is jammed in front of or inside the fuser.
• Description 2. Recording paper is stuck in the discharge roller and in the fuser just after passing through the
Actuator-Feed.
L S U
Fuser Toner Cartridge
CR
DR
OPC SR
EXIT
PR
Sensor
PTL
MP Sensor
Feed
TR Sensor FR
Empty Sensor
7.1.4 JAM 2
1. Recording paper is jammed in front of or inside the fuser.
• Description 2. Recording paper is stuck in the discharge roller and in the fuser just after passing through the
Actuator-Feed.
L S U
Fuser
Toner Cartridge
CR
DR
OPC SR
EXIT
PR
Sensor
PTL
Feed
TR Sensor FR
Empty Sensor
Service Manual
7-2
Check and Cause
1. If the recording paper is jammed in
front of or inside the fuser.
2. If the recording paper is stuck in the
discharge roller and the fuser just
after passing through the Actuator-
Feed, Feed Actuator may be defec-
tive.
Check and Cause
1. If the paper is completely fed out of
the printer, but Jam 2 occurs
: Exit sensor is defective.
MP Sensor
• After the paper is completely dis-
charged, actuator Exit should return
to the original position to shut off the
photo-sensor. Sometimes it takes
longer than it should and does not
return.
2. If the paper is rolled in the Fuser Roller:
• This occurs when a Guide claw is
broken away or transformed.
• It occurs when the Guide slaw spring
is broken away or transformed.
• It occurs when the Heat-Roller or
Pressure-Roller is seriously contami-
nated with toner powder.
3. Paper is accordion jammed in fuser.
Solution
1. Replace the SMPS.
2. Reassemble the Actuator-Feed and
Spring-Actuator if the return is bad.
Solution
1. Check if the exit sensor actuator is
defective.
• Check if the actuator exit is deformed
(Check if the lever part is deformed
in shape).
• Check whether burrs occur in the
assembly part of the actuator exit or
not and if the actuator is smoothly
operated.
• Check if foreign matters and wire get
caught in the actuator exit's operation.
2. If the paper is stuck in the fuser : dis-
assemble the fuser and remove the
jammed paper, and clean the surface
of the pressure roller with dry gauze.
3. Remove the jammed paper after disas-
sembling the fuser : Clean the surface
of the pressure roller with dry gauze.
• Remove the toner particles stained
on the rib.
• Check the assemblage and perfor-
mance of the exit.