Xerox Phaser 7760DX User Manual

							
Controlling the Quality of Your Prints
Phaser® 7760 Color Laser Printer 4-4
To select the color correction in a supported driver:
See also: 
Knowledge Base at  www.xerox.com/office/7760support
None Applies no color correction. Use with other color 
management tools, such as ICC (International Color 
Consortium) profiles, ColorSync, or the PANTONE
® 
Color Chart for your printer.
Black and White Converts all colors to shades of gray.
Use Printer Control 
Panel Setting Uses the color correction set in the printer. The color 
correction can be set in the printer using either the 
control panel or the CentreWare software (if available).
Operating System Steps
Windows 98 SE, 
Windows 2000, 
Windows XP, or 
Windows Server 2003 1.
Select the  Te k C o l o r  tab.
2. Select the desired color correction.  Some of the color corrections are 
grouped under  Office Color or Press Match .
Mac OS 9.x 1.In the  Print dialog box , select  General .
2. Select  TekColor  from the drop-down list.
3. Select the desired color correction for  Color.
Mac OS X, version 
10.2 and higher 1.
In the  Print dialog box , select  Image Quality  from the drop-down list.
2. Select the desired color correction from the  Color Correction drop-
down list.
TekColor Correction  Description
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Solving Print-Quality Problems
Phaser® 7760 Color Laser Printer 4-5
Solving Print-Quality Problems
This section includes:
■Light Lines or Streaks in One Color  on page 4-6
■Dark Lines, Smudges, or Streaks Through All Colors  on page 4-7
■Repeating Defects on page 4-8
■Colors Align Incorrectly  on page 4-9
■Incomplete Fusing on page 4-10
■Image Is Offset on page 4-11
■Solid Fills Appear Mottled or Bl otchy, Blacks Appear Blue on page 4-12
■Poor Transparency Print Quality  on page 4-13
■All Colors Are Too Light or Too Dark  on page 4-14
■Grays Are Not Neutral on page 4-14
■Colors Vary Between Computers  on page 4-15
■Colors Do Not Match on page 4-15
■Printed Colors Do Not  Match Monitor Colors on page 4-16
■PANTONE Colors Do Not Match  on page 4-16
■Color Settings Not Applied on page 4-16
■Print Area Is Not Centered on the Paper  on page 4-17
See also:  Knowledge Base at  www.xerox.com/office/7760support
Advanced Features Guide  at www.xerox.com/office/7760support
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Solving Print-Quality Problems
Phaser® 7760 Color Laser Printer 4-6
Light Lines or Streaks in One Color
Problem
Solution
1.Open the front door.
2. Remove the waste cartridge.
3. Clean the laser window for the color affected  with the laser window cleaner wand. See 
Cleaning the Laser Window  on page 5-3.
Note: The laser window cleaner wand is located inside the front door. Insert the wand 
until the arrow aligns with the front plate of the printer.
4. Return the waste cartridge to the printer.
5. If the problem continues after cleaning the laser window, replace the imaging unit that 
corresponds to the color affected.
Thin, light or white lines appear in only one color.
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Solving Print-Quality Problems
Phaser® 7760 Color Laser Printer 4-7
Dark Lines, Smudges, or St reaks Through All Colors
Problem
Solution
1.Verify that the paper you are using is  the correct type for the printer. See Supported Paper 
and Media  on page 3-3.
2. Verify that the paper is properly loaded in the  tray, and the correct paper type is selected in 
the 
Paper Tray Setup menu. See  Loading Paper  on page 3-9.
If the problem continues, remove toner print smears:
1. On the control panel, select 
Troubleshooting, select Print Quality Problems, and then 
select 
Remove Print Smears.
Several cleaning pages are printed.
2. Repeat Step 1 until no tone r appears on the pages.
If the problem is not resolved by removing  the toner print smears, follow these steps.
1. On the control panel, select 
Troubleshooting, select Print Quality Problems, and then 
select 
Repeating Defects Page.
The Repeating Defects page prints with in structions for identifying defective units.
2. Replace the item(s) identified on the Repeat ing Defects page to correct the problem.
If the problem continues, replace the belt  cleaner assembly or the accumulator belt.
Note: If the Transfer Roller is replaced, on the control panel, select 
Information, select 
Supplies Info, and then select Reset Transfer Roller Life.
Dark or light marks appear on the page in  all colors and/or in non-printed areas.
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Solving Print-Quality Problems
Phaser® 7760 Color Laser Printer 4-8
Repeating Defects
Problem
Solution
Print the Repeating Defects page to view instru ctions for correcting the problem. To print the 
Repeating Defects page:
1. On the control panel, select 
Troubleshooting, and then press the  OK button.
2. Select 
Print Quality Problems, and then press the  OK button.
3. Select 
Repeating Defects, and then press the  OK button. 
The Repeating Defects page prints.
4. Follow the instructions on the page to m easure the distance between the defects and 
identify the item causing the defects.
5. Replace the item causing the defects.
Note: If the Transfer Roller is replaced, on the control panel, select 
Information, select 
Supplies Info, and then select Reset Transfer Roller Life.
If the Accumulator Belt is replaced, on the control panel, select 
Troubleshooting, select 
Service Tools, and then select Reset Accumulator Belt Life.
Spots or lines appear at regular intervals on the 
page, in the direction the paper moves through  the printer, in only one color. Spots or lines appear at regular intervals on the 
page, in the direction the paper moves through  the printer, in all colors and/or in non-printed  areas.
7400-206
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Solving Print-Quality Problems
Phaser® 7760 Color Laser Printer 4-9
Colors Align Incorrectly
Problem
Solution
1.Open and close the front door. The printer pe rforms an automatic registration calibration 
with the next print.
Color has shifted outside the designated ar ea or is superimposed over another color.
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Solving Print-Quality Problems
Phaser® 7760 Color Laser Printer 4-10
Incomplete Fusing
Problem
Solution
1.Verify that the paper you are using is  the correct type for the printer. See Supported Paper 
and Media  on page 3-3.
2. Verify that the paper is properly loaded in the  tray, and the correct paper type is selected in 
the 
Paper Tray Setup menu. See  Loading Paper  on page 3-9.
If the problem continues:
1. Do one of the following:
■Tray 1 (MPT): Remove and re-insert the paper.
■Tray 2-5: Open and close the selected paper tray. The control panel prompts you to 
confirm or change the paper type.
2. On the control panel, select 
Change, press the  OK button, and then do one of the 
following:
■Select the correct paper  type, and then press the  OK button.
■Select the next heavier type of paper, and then press the  OK button.
Note: Paper types from lightest to heaviest are: Plain Paper, Heavy Plain Paper, Thin Card 
Stock, Thick Card Stock,  Extra Thick Card Stock.
Toner appears to be missing from the print, or rubs off easily.
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Solving Print-Quality Problems
Phaser® 7760 Color Laser Printer 4-11
Image Is Offset
Problem
Solution
1.Verify that the paper you are using is  the correct type for the printer. See Supported Paper 
and Media  on page 3-3.
2. Verify that the paper is properly loaded in the  tray, and the correct paper type is selected in 
the 
Paper Tray Setup menu. See  Loading Paper  on page 3-9.
If the problem continues:
1. Do one of the following:
■Tray 1 (MPT): Remove and re-insert the paper.
■Tray 2-5: Open and close the selected paper tray. The control panel prompts you to 
confirm or change the paper type.
2. On the control panel, select 
Change, press the  OK button, and then do one of the 
following:
■Select the correct paper  type, and then press the  OK button.
■Select the next lighter type of paper, and then press the  OK button.
Note: Paper types from heaviest to lightest are: Ex tra Thick Card Stock, Thick Card Stock, 
Thin Card Stock, Heavy Plain Paper, and Plain Paper.
Toner appears to have been pulled off the page and placed about 84 mm (3.3 in.) across 
the page from where it should be.
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Solving Print-Quality Problems
Phaser® 7760 Color Laser Printer 4-12
Solid Fills Appear Mottled or  Blotchy, Blacks Appear Blue
Problem
Solution
1.Verify that the paper you are using is  the correct type for the printer. See Supported Paper 
and Media  on page 3-3.
2. Verify that the paper is properly loaded in the  tray, and the correct paper type is selected in 
the 
Paper Tray Setup menu. See  Loading Paper  on page 3-9.
If the problem continues, adjust the toner tr ansfer setting for the paper type being used:
1. Load paper into Tray 1 (MPT). The control panel prompts you to change the paper type.
2. On the control panel, do one of the following:
■Press the  OK button to confirm the paper type. Proceed to Step 3.
■Follow these steps:
a. Select 
Change to change the paper type, and then press the  OK button.
b. Scroll the correct paper ty pe, and then press the OK button.
c. Scroll to the correct paper size, and then press the  OK button.
d. Proceed to Step 3.
3. Select 
Printer Setup, select Calibration Setup, select Calibrate for Paper, and then 
select 
Calibrate for Paper Pages.
4. Follow the instructions on the Calibrate for Pa per Pages to adjust the toner transfer setting.
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Solving Print-Quality Problems
Phaser® 7760 Color Laser Printer 4-13
Poor Transparency Print Quality
Problem
Print-quality defects are occurri ng on the transparency film:
■Light and/or dark spots.
■Smeared toner
■Light bands on the print
Caution: Damage caused by using unsupported paper, transparencies, and other specialty 
media is not covered by the Xerox warranty,  service agreement, or Total Satisfaction 
Guarantee. The Total Satisfaction Guarantee is  available in the United States and Canada. 
Coverage may vary outside these areas; please contact your local representative for details.
To order paper, transparencies, or other specia lty media, contact your local reseller or go to 
www.xerox.com/office/supplies
.
Solution
1. Using non-recommended transparency film can  cause print-quality problems or damage 
the printer’s fuser. See the  Recommended Media List at www.xerox.com/paper
. 
2. Verify that the paper is properly  loaded in the tray, and that 
Transparency is the selected 
paper type in the 
Paper Tray Setup menu. See  Loading Paper  on page 3-9.
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