Xerox 4400DT Service Manual - Page 153

Blank Prints No visible image anywhere on the output print as shown here. Initial Actions I Inspect the printer paper path for items such as staples, paper clips and paper scraps. I Check installation of the Print Cartridge. I Check that the Print Cartridge ground contacts (on the right side of the Print Cartridge and in the Print Cartridge Side Guide in the printer) are clean. I Ensure there are no obstructions in the Laser path. I Ensure the blank prints are not the result of multi-sheet feeds. Blank Prints Troubleshooting Procedure Step Actions and Questions Yes No 1 1. Enter Service Diagnostics and select Go to step 3. Engine Test Print. 2. Scroll to Print Quantity and press OK. 3. Select 5, then press OK. 4. Scroll to Print Test Pattern and press OK. Are the test prints blank? Go to step 2. 2 1. Exit Service Diagnostics. Remove and re- The problem ap- 2. When the printer has restarted, select Printable Pages Menu. 3. Scroll to Print Configuration Pages and press OK. seat the Image Processor Board. If the problems persist, replace pears to be with the host computer or the cables. If the problems per- Are the prints blank? the Image Pro- sist, replace the cessor Board Image Processor (RRP 9.2 on Board (RRP 9.2 page 6-88). on page 6-88). 3 1. Install a new Print Cartridge. 2. Print a test print as in Step 1. Problem solved. Go to step 4. Is there a normal image on the paper? 3-56 Phaser 4400 Laser Printer Service Manual