Lexmark C782 Service Manual - Page 151

5061 Quality troubleshooting (continued) Symptom Cause Solution Blank pages The print cartridges are defective or empty. Replace the print cartridges. Solid color pages • The print cartridges are defective. • Your printer requires servicing. • Replace the print cartridges. • Call for service. The paper curls badly once it prints and exits to a bin. • The Type, Texture, and Weight settings are not appropriate for the type of paper or specialty media you are using. • The paper has been stored in a high humidity environment. • Change Paper Type, Paper Texture, and Paper Weight to match the paper or specialty media loaded in the printer. • Load paper from a fresh package. • Store paper in its original wrapper until you use it. Second transfer roll service check Note: The second transfer roll is 51.03 mm (2.009 inches) in circumference. Any print quality problems such as lines that are spaced apart indicate you should check the second transfer roll for damage, toner, or foreign material. Note: The second transfer roll is also part of the maintenance kit and should be replaced when 83 ITU Maintenance appears. Ask the customer if they have replaced the second transfer roll recently. Note: If any of the following problems occur, go to "Print quality service check" on page 2-93: • A problem with only one color • Light or very light print CAUTION Make sure the printer is powered off before making any checks on the second transfer roll or associated parts for personal safety and to prevent damage to the printer. Step 1 2 3 Actions and questions Second transfer roll assembly-Check the second transfer roll for any signs of toner buildup, surface damage to the roll, oil, or other contaminants on the surface of the roll. Do you see any problems with the second transfer roll? Transfer arms, springs, and associated hardware- Contact your next level of support. None of these parts are service related parts. Is there any problem with the associated hardware? Transfer high voltage power supply, HV wiring, and contacts-Check the second transfer cable (transfer HVPS contact to the second transfer roll rear arm contact) for correct installation. Is the cable installed correctly? Yes Replace the second transfer roll. See "Second transfer roll removal" on page 4-88. Contact your next level of support. Go to step 4 No Go to step 2 Go to step 3 Install the cable correctly. Diagnostic information 2-109