Xerox Phaser 7500N User Manual

							Troubleshooting
Phaser 7500 Color Printer
User Guide131
Print-Quality Problems
This section includes:
•Using Built-in Troubleshooting Tools on page 131
•Troubleshooting Print-Quality Problems on page 133
Your Phaser 7500 printer is designed to produce consistently high quality prints. If you observe 
print-quality problems, use the information on these pages to troubleshoot the problem. For more 
information, go online to Xerox Support & Drivers at www.xerox.com/office/7500support.
Caution:The Xerox warranty, service agreement, or Total Satisfaction Guarantee does not cover 
damage caused by using unsupported paper, transparencies, or other specialty media. 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.
Note:To enhance print quality, toner cartridge(s) for many equipment models have been designed 
to cease functioning at a predetermined point. 
Using Built-in Troubleshooting Tools
Your printer contains the following built-in tools to help you diagnose print quality problems as well as 
adjust your printer’s image quality. 
•Printing the Troubleshooting Print Quality Page on page 131
•Setting Color Calibration on page 131
•Calibrating the Paper Type on page 132
•Adjusting the Print Margins on page 132
•Selecting Paper Type on page 132
Printing the Troubleshooting Print Quality Page
Print this Information Page for more help.
1. Press the Down Arrow button.
2. Select Tro u b l e s h o o t i n g > Print Quality Problems > Troubleshooting Print Quality Page.
3. Press the OK button to print.
Setting Color Calibration
1. Press the Down Arrow button.
2. Select Tro u b l e s h o o t i n g > Print Quality Problems > Calibrate Colors.
3. Press the OK button to print.
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							Troubleshooting
Phaser 7500 Color Printer
User Guide 132
Calibrating the Paper Type
1. Press the Down Arrow button.
2. Select Tro u b l e s h o o t i n g > Print Quality Problems > Calibrate for Paper.
3. Press the OK button to print.
Adjusting the Print Margins
1. Press the Down Arrow button.
2. Select Tro u b l e s h o o t i n g > Print Quality Problems > Calibrate Margins.
3. Press the OK button to print.
Selecting Paper Type
For information on supported paper type and weight:
1. Press the Down Arrow button.
2. Select Information > Information Pages > Paper Tips Page.
3. Press the OK button to print.
See also: 
www.xerox.com/paper Recommended Media List (United States)
www.xerox.com/europaper Recommended Media List (Europe)
www.xerox.com/office/7500supplies to order Xerox printing media
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							Troubleshooting
Phaser 7500 Color Printer
User Guide133
Troubleshooting Print-Quality Problems
•Nothing Prints or Black Spots Print on Page on page 133
•Entire Page Prints Black or Color on page 134
•Image Prints Too Light on page 134
•Image Prints Too Dark on page 135
•Image is Blurred or Stained on page 135
•Print Density is Uneven on page 136
•Print is Irregular or Mottled on page 137
•Ink Rubs Off After Printing on page 138
•Toner Smudges and Residual Images Print on page 138
•Toner Smudges Appear on the Back of the Page on page 139
•White or Black Areas Print in Regular Pattern on page 140
•Image Prints with Defects on page 140
•Lateral Lines or Bands Print on Image on page 141
•Colors Look Wrong on page 141
•Colors Do Not Register Properly on page 141
•Colors Reproduce Poorly on page 142
Nothing Prints or Black Spots Print on Page
Probable CausesSolutions
One or more of the imaging units may be defective.Remove the imaging units one at a time, and check 
for damage. If it is damaged, replace it.
The printer driver is not set correctly.Select the proper setting in the printer driver to switch 
from transparencies to plain paper.
The media is moist from humidity.Adjust the humidity for media storage. Remove the 
moist media and replace it with new, dry media.
The media set in the printer driver mismatches the 
media loaded in the printer.Load the correct media in the printer.
Several sheets are being fed at the same time.Remove the media from the tray and check for static 
electricity. Fan plain paper or other media (but not 
transparencies), and replace it in the tray.
Media is not set properly in the tray(s).Remove the media, tap it to straighten it out, return it 
into the tray, and realign the media guides.
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							Troubleshooting
Phaser 7500 Color Printer
User Guide 134
Entire Page Prints Black or Color
Image Prints Too Light
Probable CausesSolutions
One or more of the the imaging units may be 
defective.Remove the imaging units one at a time, and check 
for damage. If it is damaged, replace it.
Probable CausesSolutions
The density is too light.Select a darker copy density.
The paper is moist from humidity.Remove the paper and try a fresh ream.
Media type is set incorrectly.When printing envelopes, labels, heavyweight stock, 
or transparencies, specify the appropriate media type 
in the printer driver.
Unsupported media (wrong size, thickness, type, etc.) 
is being used. Use Xerox-approved media. See Supported Media on 
page 55.
The printer needs to be calibrated.Perform the color calibration procedure. For more 
information see Setting Color Calibration on 
page 131.
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							Troubleshooting
Phaser 7500 Color Printer
User Guide135
Image Prints Too Dark
Image is Blurred or Stained
Probable CausesSolutions
One or more of the imaging units may be defective.Remove the imaging units one at a time, and check 
for damage. If it is damaged, replace it.
One or more of the toner cartridges may be defective.Remove the toner cartridges and check each for 
damage. If it is damaged, replace it. 
The printer needs to be calibrated.Perform the color calibration procedure. For more 
information see Setting Color Calibration on 
page 131.
Probable CausesSolutions
One or more of the imaging units may be defective.Remove the imaging units one at a time, and check 
for damage. If it is damaged, replace it.
One or more of the toner cartridges may be defective.Remove the toner cartridges and check each for 
damage. If it is damaged, replace it.
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							Troubleshooting
Phaser 7500 Color Printer
User Guide 136
Print Density is Uneven
Probable CausesSolutions
One or more of the toner cartridges may be defective 
or low.Remove the toner cartridges and check for damage. 
If it is damaged, replace it.
One or more of the imaging units may be defective.Remove the imaging units one at a time, and check 
for damage. If it is damaged, replace it.
The printer is not level.Place the printer on a flat, hard, level surface.
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							Troubleshooting
Phaser 7500 Color Printer
User Guide137
Print is Irregular or Mottled
Probable CausesSolutions
The media is moist from humidity.Remove the moist media and replace it with new, dry 
media.
Unsupported media (wrong size, thickness, type, etc.) 
is being used.Use Xerox-approved media. See Supported Media on 
page 55.
One or more of the toner cartridges may be defective.Remove the toner cartridges and check each for 
damage. If it is damaged, replace it.
One or more of the imaging units may be defective.Remove the imaging units one at a time, and check 
for damage. If it is damaged, replace it.
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							Troubleshooting
Phaser 7500 Color Printer
User Guide 138
Ink Rubs Off After Printing
Toner Smudges and Residual Images Print
Probable CausesSolutions
The media is moist from humidity.Remove the moist media and replace it with new, dry 
media.
Unsupported media (wrong size, thickness, type, etc.) 
is being used.Use Xerox-approved media. See Supported Media on 
page 55.
Media type is set incorrectly.When printing envelopes, labels, heavyweight stock, 
or transparencies, specify the appropriate media type 
in the printer driver.
Probable CausesSolutions
Unsupported media (wrong size, thickness, type, etc.) 
is being used.Use Xerox-approved media. See Supported Media on 
page 55.
Media type is set incorrectly.When printing envelopes, labels, heavyweight stock, 
or transparencies, specify the appropriate media type 
in the printer driver.
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							Troubleshooting
Phaser 7500 Color Printer
User Guide139
Toner Smudges Appear on the Back of the Page
Probable CausesSolutions
The media transfer roller is dirty.Check the transfer roller for toner accumulation. 
Replace if necessary.
The media path is dirty with toner.Print several blank sheets and the excess toner should 
disappear.
Foreign material has entered the printer.Check the transfer belt for foreign material or 
damage.
Check the fuser for foreign material.
One or more of the imaging units may be defective.Remove the imaging units one at a time, and check 
for damage. If it is damaged, replace it.
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							Troubleshooting
Phaser 7500 Color Printer
User Guide 140
White or Black Areas Print in Regular Pattern
Image Prints with Defects
Probable CausesSolutions
Foreign material in the paper path.Inspect the paper path and remove any foreign 
material.
One or more of the imaging units may be defective.Remove the imaging units one at a time, and check 
for damage. If it is damaged, replace it.
Probable CausesSolutions
A toner cartridge may be defective.Remove the toner cartridge with the color causing the 
abnormal image. Replace it with a new toner 
cartridge.
The imaging unit may be defective.Remove the imaging units one at a time, and check 
for damage. If it is damaged, replace it.
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