Back Stain - Hitachi SL1 Maintenance Manual

No.22

Back Stain

Phenomenon
Back side of the print paper is stained as shown in the print sample of upper right
corner.
Main Causes
1). Fuser Unit:
1-1). Cleaning pad is stained.
1-2). Silicone oil is short.
1-3). Fuser roller and back-up roller is stained.
Countermeasures
1). Replace the cleaning roller with a new roller. (See Section 3.3.3.)
2). Clean the fuser roller and back-up roller.
3). Replace the fuser unit with a new unit. (See Section 5.2.2.)
Fusing Unit
Cleaning Roller
Back-up Roller
8-59
Oil Bottle
Fuser Roller