TROUBLESHOOTING

4.3.3JAM 1

 

 

L S U

 

 

 

Fuser

 

CR

Toner Cartridge

 

 

 

 

 

EXIT

PR

OPC

DR SR

 

 

Sensor

 

 

 

 

 

 

TR

PTL Feed

FR

MP Sensor

 

 

Sensor

 

R/

CK

PI

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.

 

Check and Cause

 

Solution

 

 

 

 

1.

If the recording paper is jammed in front of or inside

1.

Replace the SMPS.

 

the fuser. (Perform DCU diagnostic code 08)

 

 

2.

If the recording paper is stuck in the discharge roller

2.

Reassemble the Actuator-Feed and Spring-Actuator

 

and the fuser just after passing through the Actuator-

 

if the returning is bad.

 

Feed, Feed Actuator may be defective.

 

 

 

 

 

 

4.3.4 JAM 2

 

 

L S U

 

 

 

Fuser

 

CR

Toner Cartridge

EXIT

PR

OPC

DR SR

 

 

Sensor

 

 

 

 

 

 

TR

PTL Feed

FR

MP Sensor

 

 

Sensor

 

R/

CK

PI

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.

 

 

Check and Cause

Solution

 

 

 

 

1. If the paper is completely fed out of the printer, but Jam

1. Check if the exit sensor actuator is defective.

 

2 occurs : Exit sensor is defective.

• Check if the actuator exit is unformed (Check if the

 

• After the paper is completely discharged, actuator

lever part is unformed in shape).

 

 

Exit should return to the original position to shut the

• Check whether burrs occur in the assembly part of

 

 

photo-sensor. Sometimes it takes longer hour than it

the actuator exit or not and if the actuator is

 

 

should and does not return.

smoothly operated.

 

 

 

• Check if foreign matters and wire get caught in the

 

 

 

actuator exit's operation.

 

2. If the paper is rolled in the Fuser Roller:

2. If the paper is stuck in the fuser : disassemble the

 

• This occurs when a Guide claw is broken away or

fuser and remove the jammed paper, and clean the

 

 

transformed.

surface of the pressure roller with dry gauze.

 

• It occurs when the Spring of a Guide claw is broken

 

 

 

away or transformed.

 

 

• It occurs when the Heat-Roller or Pressure-Roller is

 

 

 

seriously contaminated with the toner.

 

 

3. Paper is accordion in the fuser.

3. Remove the jammed paper after disassembling the

 

 

 

fuser : Clean the surface of the pressure roller with

 

 

 

dry gauze.

 

 

 

• Remove the toner particles stained on the rib.

 

 

 

• Check the assemblage and performance of the exit.

 

 

 

 

4-14

Service Manual

 

 

 

Page 34
Image 34
Xerox Phaser 3120 specifications 3 JAM, 4 JAM