HP Mopier 320 Service Manual - Page 640

Table 7-26. Misshapen Characters, Voids Possible Cause Recommended Action 1. Paper surface too rough. Toner migrates to low spots, leaving higher areas void. Turn EconoMode off. Use paper with correct finish (smoothness) (see HP LaserJet Printer Family Paper Specifications Guide). 2. Printing on wrong side of paper. Turn EconoMode off. Check for the The label on the ream of paper arrow on the paper wrapper. Be sure indicates which side to print on. The paper is loaded with the arrow different surface properties of some pointing up in Tray 1 or down in Trays papers may cause problems if loaded 2, 3, 4, and 5. wrong side up. 3. Paper surface is too smooth for proper toner adhesion. Turn EconoMode off. Use paper with correct finish (smoothness) (see HP LaserJet Printer Family Paper Specifications Guide). 4. Transparencies are bad. Transparencies can have this problem because they are not designed for proper toner adhesion. Turn EconoMode off. Use HewlettPackard approved transparencies (see HP LaserJet Printer Family Paper Specifications Guide). 5. Transfer Roller is bad. If the Transfer Roller has finger oils on its surface, is dirty, or is worn-out, this problem can result. Turn EconoMode off. Clean the Transfer Roller using a dry, lint-free cloth. DO NOT touch the Transfer Roller with your fingers. If the problem persists, replace the Transfer Roller Assembly. See "Transfer Roller Assembly" on page 282 for instructions. 6. Laser/Scanner Assembly is bad. Replace the Laser/Scanner Assembly. See "Laser/Scanner Assembly" on page 254 for instructions. C4229-90911 Image Quality 607