Troubleshooting 
 
104  Xerox
®
 Phaser
®
 6020 Printer 
  User Guide 
 
Symptom  Cause  Solution 
Stray black dots, white areas, or 
dropouts 
 
The paper is outside the 
recommended specification 
range. 
Replace the paper with a recommended 
size and type, and confirm that your 
control panel and print driver settings are 
correct. For details, see Supported Paper 
on page 50. 
 
The toner cartridges are not 
Xerox
®
 toner cartridges. 
Replace the toner cartridges with 
genuine Xerox
®
 toner cartridges. For 
details, see Consumables on page 80. 
•  Vertical black or color streaks 
or multiple colored streaks or 
lines 
•  Streaks in one color only 
 
The toner cartridges are not 
Xerox
®
 toner cartridges. 
Replace the toner cartridges with 
genuine Xerox
®
 toner cartridges. For 
details, see Consumables on page 80. 
 
There is a problem with the 
toner cartridge for that color. 
Check the condition of the toner 
cartridge and replace it if necessary. For 
assistance, go to the Xerox
®
 Support 
website at 
www.xerox.com/office/6020support. 
Color around the edge of 
printing is incorrect 
The color registration is 
incorrect. 
Adjust the color registration. For details, 
see Color Registration on page 83. 
Partial blanks, creased paper, or 
blotted printing 
 
The paper is damp.  Replace the paper. 
The paper is outside the 
recommended specification 
range. 
Replace the paper with a recommended 
size and type, and confirm that your 
control panel and print driver settings are 
correct. For details, see Supported Paper 
on page 50. 
The printer is worn or damaged.  For assistance, go to the Xerox
 Support 
website at 
www.xerox.com/office/6020support. 
The toner cartridges are not 
Xerox
®
 toner cartridges. 
Replace the toner cartridges with 
genuine Xerox
®
 toner cartridges. For 
details, see Consumables on page 80.