Lexmark E360DN Service Manual - Page 65

4513-420, -430 Print quality problems (Continued) Problem Unexpected characters print, or characters are missing. Jobs are not printing, and an error message is displayed. While in PostScript 3 emulation, the printer is flushing data (an error message is displayed). Cause / action • Ensure correct printer driver is being used. • Select hex trace mode to determine what the problem is. • Restore factory defaults. • Make sure the parallel cable or USB cable is firmly plugged in at the back of the printer. • The printer is waiting for an appropriate command. • Make sure the print cartridge assembly is installed properly. • Make sure the printer front cover is closed. • Ensure the correct PostScript driver is being used. • The printer doesn't have enough memory to print the job. Install more memory. Printhead service check FRU Printhead Note: New printhead must be aligned. See "Printhead assembly electronic adjustment" on page 3-16. Action Turn the printer off. Disconnect the printhead cables from J8 and J100 on the controller board. Turn the printer on with the front door closed. On the controller board, verify +5 V dc on pin 10 at J8 and +5 V dc on pins 1, 2, and 3 at J100. Verify grounds on pins 2, 4, and 7 at J8 and on pin 4 at J100. • If voltages or grounds are incorrect, then check the controller board. See "Controller board service check" on page 2-22 for more information. • If voltages are correct, then replace the printhead (comes with cables). Diagnostics information 2-37