3-34
Confidential
4. IMAGE DEFECT TROUBLESHOOTING
4.1
Image Defect Examples
Fig. 3-5
4.2
Diameter of Rollers
Image defects which appear periodically may be caused by failure of a roller. Specify the
cause referring to the diameter of the rollers or pitch which appears in the image as shown in
the table below.
No.
Parts name
Diameter
The pitch which
appears in the image
1
Develop roller
Ø
20.0 mm
42.5 mm
2
Exposure drum
Ø
30.0 mm
94.2 mm
3
Heat roller in the fuser unit
Ø
25.0 mm
78.5 mm
4
Pressure roller ASSY in the fuser unit
Ø
25.0 mm
78.5 mm
5
Registration roller
Ø
14.0 mm
44.0 mm
6
Transfer roller
Ø
15.2 mm
48.2 mm
Downward fogging
of solid color
Summary of Contents for HL 5370DW
Page 12: ...CHAPTER 1 SPECIFICATIONS ...
Page 32: ...Confidential CHAPTER 2 THEORY OF OPERATION ...
Page 57: ...Confidential CHAPTER 3 ERROR INDICATION AND TROUBLESHOOTING ...
Page 109: ...Confidential CHAPTER 4 PERIODIC MAINTENANCE ...
Page 145: ...CHAPTER 5 DISASSEMBLY REASSEMBLY ...
Page 153: ...5 6 Confidential Fig 5 3 EM D110 4 places Separation pad ASSY ...
Page 154: ...5 7 Confidential 5 GEAR LAYOUT DRAWING Fig 5 4 ...
Page 213: ...5 66 Confidential 3 Remove the Gear 17 black Fig 5 86 4 Remove the Gear 17 white Fig 5 87 ...
Page 261: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...