Samsung ML-2251N/XAA Service Manual page 81

7.2.3 JAM 1
Fuser
EXIT
PR
Sensor
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 defective.
7.2.4 JAM 2
Fuser
EXIT
PR
Sensor
Check and Cause
1. If the paper is completely fed out of the printer, but
Jam 2 occurs : Exit sensor is defective.
• After the paper is completely discharged the Exit
sensor actuator should return to its original position
to shut the photo-sensor. It may stick open or return
only slowly due to contamination be paper debris or
foreign objects.
2. If the paper is rolled in the Fuser Roller(accordion Jam):
• This occurs when a Guide claw is broken away,
damaged or deformed.
• It occurs when the Spring of a Guide claw is broken or
damaged.
• It occurs when the Heat-Roller or Pressure-Roller is
seriously contaminated with toner.
Samsung Electronics
L S U
Toner Cartridge
CR
DR
OPC
SR
PTL
MP Sensor
Feed
TR Sensor FR
Empty Sensor
L S U
Toner Cartridge
CR
DR
OPC SR
PTL
MP Sensor
Feed
TR Sensor FR
Empty Sensor
• Description
1. Recording paper is jammed in front of or inside the fuser.
2. Recording paper is stuck in the discharge roller and in the
fuser just after passing through the Actuator-Feed.
1. Replace the Exit-Sensor, SMPS or main PBA.
2. Reassemble the Actuator-Feed and Spring-Actuator
if the movement is bad. Replace if necessary.
• Description
1. Recording paper is jammed in front of or inside the fuser.
2. Recording paper is stuck in the discharge roller and in the
fuser just after passing through the Actuator-Feed.
1. Check if the exit sensor actuator is defective.
• Check if the actuator exit is deformed (Check if the
lever part is deformed).
• Check whether burrs occur in the assembly part of
the exit actuator and if the actuator operates
smoothly.
• Check if foreign objects or paper debris are
preventing the correct operation of the actuator.
2. If the paper is stuck in the fuser : disassemble the
fuser and remove the jammed paper, and clean the
surface of the pressure roller with dry gauze.
Check all ribs, claws and springs.
Troubleshooting
Solution
Solution
Service Manual
7-9