Lexmark 4227 Service Manual - Page 33
Print quality problems, Symptom, Action
UPC - 734646117104
View all Lexmark 4227 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 33 highlights
4227-300 Print quality problems Symptom No print, but carrier moves as if printing. Print density is light. Uneven print density across the print line Specific dots missing. Scattered ink, smearing, blurred characters Fuzzy print Action Be sure the printhead cables are not loose or damaged. Be sure the interface cable is connected properly. Check the ribbon cartridge for binds or damage. Go to the "Print wire drive failure service check" on page 2-28. If the ribbon has reached its end of life or is worn, the ribbon cartridge needs to be replaced. Go to the "Auto Gap service check" on page 2-11. If no problem is found, go to the"Ribbon drive service check" on page 2-30. Be sure the printhead cables are connected correctly to the printhead and the sub logic board. Clean the printhead. Set the Auto Gap to On in the user menus and run the print test. If the print is light at one edge and uniformly gets darker across the page to the other edge, perform the "Printhead-to-platen gap adjustment" on page 4-2. Go to the "Print wire drive failure service check" on page 2-28. Clean the printhead nose. Clean the ribbon guide and shield. If the ribbon has reached its end of life or is worn, the ribbon cartridge needs to be replaced. Go to the "Print quality service check" on page 2-27. Diagnostic information 2-9