Skip to main contentClick to view our Accessibility Statement or contact us with accessibility-related questions.

Phaser 740


Troubleshooting Print Quality

If you notice a problem with the quality of your prints, the probable solution is replacing one of the consumables. Keep in mind this basic guideline:

  • If the symptom appears in a single color:
    Replace the toner cartridge.
  • If the symptom appears in all colors:
    Replace the imaging unit, or fuser, or fuser roll, or main charge grid, or transfer kit.

To diagnose the problem, check these items:

  1. Check the front panel for a message on replacing a consumable.
  2. From the Help Pages menu, print the Consumables Page; use it to diagnose and correct problems; it contains useful information, such as the remaining life for consumables.
  3. From the front panel Help Pages menu, print Service Print 1. Examine prints for symptoms.

 

Symptom: In one color only? Solution: Replace that color toner cartridge.

1 color has many vertical streaks.

 

Replace the toner cartridge.

1 color has a light vertical streak.

 

1 color is light or faded.

 

  1. Adjust the color density (see Controlling Color Density ).
  2. Replace the toner cartridge.

Symptom: In all four colors? Solution: 1) Choice of media or 2) Replace imaging unit, or fuser, or fuser roll.

Streak through all 4 colors.

 

  1. Use Xerox media.
  2. Use the correct media tray for the media you are using.
  3. When using the Multi-Purpose Tray, select the correct media in the front panel.
  4. Print about 25 blank pages until the problem disappears.
  5. Replace the imaging unit.

 

Spot in the same place on the page in all 4 colors.

 

Random spots appear on every page.

 

Symptom: In all four colors? Solution: 1) Choice of media or
2) Replace imaging unit, or fuser, or fuser roll or main charge grid.

Prints are black (edge to edge).

 

 

  1. Remove, then re-insert the Main Charge Grid.
  2. Replace the Main Charge Grid.

Hints

  • Use Xerox media.
  • Use the correct media tray for the media you are using.
  • When using the Multi-Purpose Tray, select the correct media in the front panel.
  • Relative humidity may be too low (below 30% relative humidity).

 

 

 

All 4 colors are extremely faded.

or

Each page has a chipped corner.

 

Symptom: In all four colors? Solution: 1) Choice of media or
2) Replace imaging unit, or fuser, or fuser roll or main charge grid.

Pieces of the printed image are missing and reappear out of place, approximately 129 mm (5 in.) down the page.

 

or

 

Media frequently wraps around the fuser ( Jam at C ).

 

 

Hints

  • Use Xerox media.
  • Print 10-20 blank pages of plain paper.
  • To avoid jams with Xerox transparencies, make sure that the logo strip is loaded face-down for the Multi-Purpose Tray and face-up for the transparency tray.

 

If Jam at C, clear the media jam.

Print 10-20 blank pages to clean the roller.

  • If you still see the problem, replace the fuser roll.
  • If you still see the problem, replace the fuser.


Return to Topic List
Support Home Page
Phaser 740 Support Page

Xerox Office Support Home
Additional Information

Register your Printer
ASPs & TPMs
About Software Support
Color Connection
Printer Warranties
Material Safety Data Sheets
Supplies & Cartridge Recycling Program