Troubleshooting 
 
160  Phaser 6600 Color Printer 
  User Guide 
 
 
 
CAUTION: Some paper and other media types can cause poor output quality, increased paper 
jams, or damage your printer. Do not use the following: 
•  Rough or porous paper 
•  Inkjet paper 
•  Non-laser glossy or coated paper 
•  Paper that has been photocopied 
•  Paper that has been folded or wrinkled 
•  Paper with cutouts or perforations 
•  Stapled paper 
•  Envelopes with windows, metal clasps, side seams, or adhesives with release strips 
•  Padded envelopes 
•  Plastic media 
 
 
•  Ensure the paper type selected in your print driver matches the paper type on which you are 
printing. 
•  If you have the same size paper loaded in more than one tray, ensure that the proper tray is 
selected in the print driver. 
•  Store your paper and other media properly for optimum print quality. For details, see Paper 
Storage Guidelines on page 85. 
 
Solving Print-Quality Problems 
When the print quality is poor, select the closest symptom from the following table and see the 
corresponding solution to correct the problem. You can also print a Demo Page to more precisely 
determine the print-quality problem. For details, see Information Pages on page 25. 
If the print quality does not improve after carrying out the appropriate action, contact your Xerox 
representative. 
Notes: 
•  To enhance print quality, toner cartridges for many models of equipment have been 
designed to cease functioning at a predetermined point. 
•  Grayscale images printed with the composite black setting increment the color pages 
counter, because color consumables are used. Composite black is the default setting 
on most printers.