Lexmark 11C0200 Service Manual - Page 64

Symptom Table Symptom Blank copies when foils are run. Machine fails to detect overhead projection foils. Action Be sure OHP/Transparencies is selected in the operator menu. Go to the "Sensor Service Check" on page 2-47. Replace the OHP sheet detection board (PWB-D2). The printer fails to completely transfer the image to the paper or does not transfer it at all. The image transfer roll does not lift when paper is passing over it. Go to the "Sensor Service Check" on page 2-47 and check the image transfer roller position sensor (PC2). If it works properly, return to this check. Run a test print. After the paper has been released, open the top cover to stop the printing process. The image will be on the transfer belt unit, but the transfer roller will not be lifted. Check the transfer roller assembly solenoid (SL5). Do a continuity check of the connector (CN5). Replace the solenoid if necessary. If you still have the problem, replace the mechanical controller board. The toner rack does not go to home position or lock the rack into colors. The font print test does not print in black. Go to the "Sensor Service Check" on page 2-47 and check the rack lever sensor (PC12) and the rack home sensor (PC4). If they are good, replace the mechanical controller board. Go to the "Toner Cartridge Rack Service Check" on page 2-38. Toner cartridge rack does not rotate. Diagnostic Information 2-29