Printhead Service Check - Lexmark E260 Service Manual

Print quality problems (Continued)
Problem
Unexpected
characters print or
characters are
missing.
Jobs are not printing,
and the error light is
on solid.
While in PostScript 3
emulation, the printer
is flushing data
(Ready/Data and Error
lights are blinking).

Printhead service check

FRU
Printhead
Note: New printhead
must be aligned. See
"Adjustment
procedures" on
page 3-9.
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 toner 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.
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 and 2 at J15.
Verify grounds on pins 2, 4, and 7 at J8 and on pin 4 at J15.
• If voltages or grounds are incorrect, then check the controller board. See
board service check" on page 2-52
• If voltages are correct, then replace the printhead (comes with cables).
for more information.
Diagnostics information
4513-200, -220, -230
"Controller
2-67