CHAPTER 4
4 - 10
5.
Dirt or foreign materials on the fixing unit entrance guide.
Action:
Clean the fixing unit entrance guide.
6.
Foreign materials on the fixing film unit.
Action:
Replace the fixing film unit.
7.
Defective developing cylinder.
Action:
Replace the cartridge.
8.
Dirty mirror in the laser/scanner unit.
Action:
Replace the laser/scanner unit.
II-9.
Black Horizontal Lines
<Possible Causes>
1.
Horizontal scar(s) on the photosensitive drum.
Action:
Replace the cartridge.
2.
Dirty, deformed or worn fixing film.
Action:
Replace the fixing film unit.
II-10.
White Horizontal Lines
<Possible Causes>
1.
Horizontal scar(s) on the photosensitive drum.
Action:
Replace the cartridge.
2.
Defective fixing film unit.
Action:
Replace the fixing film unit.
II-11.
Blank Spots
<Possible Causes>
1.
Lack of toner.
Action:
Remove the cartridge from the printer. Rock the cartridge in the manner described on V-B-c of
Chapter 1, and then install it back to the printer. If the problem still remains, replace the cartridge.
2.
Dirty or deformed transfer charging roller.
Action:
Replace the transfer charging roller.
3.
Defective photosensitive drum or developing cylinder.
Action:
Replace the cartridge.
II-12.
Poor Fixing
<Possible Causes>
1.
The nip width of the fixing unit is not within the specification.
Action:
Replace the fixing pressure units.
Summary of Contents for Laser Shot LBP-1120
Page 4: ...PREFACE P 2 ...
Page 54: ...2 35 CHAPTER 2 Figure 2 6 1 4 1 3 2 J1 2 1 20 19 J2 IC2 IC1 IC3 IC4 ...
Page 107: ...APPENDIX A 2 ...
