Lexmark T652 Service Manual - Page 192

4062 Image Quality Faint print (Low contrast) Leading edge Trailing edge Before starting, check the media route for foreign objects, such as staples, clips, and scraps, in the media path. Step 1 Check Check the media condition. Load new, dry, recommended media, and perform a print test. Is the image density normal? Yes Problem solved. No Go to step 2. 2 3 Check the toner level. Is the toner level normal? Check the transfer roll assembly for contamination and wear. Is the above component free of excess wear and contamination? Go to step 3. Replace the print cartridge. Replace the transfer roll assembly. Go to "Transfer roll assembly removal (T650, T652, T654)" on page 4-78. Go to step 4. 4 Check the print cartridge for proper installation. Is the print cartridge properly installed? Go to step 5. Inspect, clean and reinstall replace the print cartridge. Remove debris or clean the printhead assembly window. 5 Check the laser beam route. Check for debris between the printhead assembly and the PC drum. Is the laser beam route free of debris and the glass window, in the printhead assembly, free of contamination? Go to step 6. 6 Check the HVPS card assembly for proper connection. Is the above component properly connected? Replace the HVPS card assembly. Go to "HVPS card assembly removal (T650, T652, T654)" on page 4-24. Replace the connections. 2-158 Service Manual