Phaser 8400/8500/8550/8560 Color Printer Service Manual 5-31Print-Quality TroubleshootingWrinklingDamage is usually in a corner with solid fills. This problem is more often seenon short-grain media. Some wrinkling on envelope flaps is normal. Wrinklingmay occur on the second side of a 2-sided print on the secondary colors. Thisindicates the Preheater is too open on the duplex side of the print.NoteOn the paper’s packaging, an underline under the 11 (in 8.5 in. x 11 in.)indicates the paper is long-grain.White Stripes Troubleshooting ProcedureStep Questions and Actions Yes No1 Print the Solid Fills test print to reveal an X-axis problem. See “Primary Solid Fills 10x”on page 5-40 for more information.Are the pinstripes apparent on the prints?Go to Step 2. Complete.The problemis not with theprint engine.2 Check X-Axis motion and verify there isnothing interfering such as a poorly dressedcable or screw. Replace any defective parts.Did this correct the problem?Complete. Go to Step 3.3 Check that there are no harnessesinterfering with the Printhead. Repair orreplace any defective part or interferencewith the Printhead.Did this correct the problem?Complete. Replace theX-Axis Motor.
