Print troubleshooting
Print-quality troubleshooting tools
Repetitive image defects ruler
If the product output has a consistent, repetitive defect, then use the table in this section to determine
which part needs to be cleaned or replaced based on the measured distance between the repetitions
of the defect.
NOTE:
Spots can be dark or white (dropouts), bands can be all shapes and sizes.
Component
Distance between defects (mm)
Type of defects
Developing roller
1
About 22
Dropouts
Dark, sharp bands
Primary charging roller
1
About 26
Dropouts
RS roller
About 29
Dropouts
Secondary transfer roller
About 47
Dropouts
Dirt on the back of page
Fuser film
About 58
Dropouts
Dirt on page
Loose toner
Pressure roller
About 63
Dirt on page
Dirt on the back of page
Loose toner
ITB drive roller
About 76
Spots
Photosensitive drum
1
About 95
Dropouts
Dirt on page
1
The primary charging roller, photosensitive drum, and developing drum cannot be cleaned. If these rollers cause a
repetitive defect, replace the corresponding cartridge, either the imaging-drum cartridge, or developing cartridge.
Calibrate the product
1.
Use the arrow buttons to select the
System Setup
menu, and then press the
OK
button.
2.
Use the arrow buttons to select the
Print Quality
menu, and then press the
OK
button.
3.
Use the arrow buttons to select the
Calibrate Color
item, and then press the
OK
button.
4.
When the display shows the
Calibrate Now
message, and press the
OK
button.
ENWW
Print troubleshooting
171
Summary of Contents for LaserJet Pro 300
Page 1: ...LASERJET PRO 300 COLOR LASERJET PRO 400 COLOR Software Technical Reference M351 M451 ...
Page 2: ......
Page 10: ...viii ENWW ...
Page 12: ...x ENWW ...
Page 17: ...1 Document and product basics Purpose and scope Software availability and localization ENWW 1 ...
Page 164: ...148 Chapter 3 Mac software and utilities ENWW ...
Page 165: ...4 Linux and Unix Linux information Unix information ENWW 149 ...
Page 168: ...152 Chapter 4 Linux and Unix ENWW ...
Page 188: ...172 Chapter 5 Engineering details ENWW ...
Page 194: ...178 Index ENWW ...
Page 195: ......
Page 196: ... 2012 Hewlett Packard Development Company L P www hp com ...