Printhead Service Check; Paper Feed Service Checks - Lexmark E330 Service Manual

Printhead service check

FRU
Printhead

Paper feed service checks

Paper jam error indication during POST
FRU
Exit sensor
Input sensor
Input sensor #1 (under print
cartridge assembly) and
Input sensor #2 (manual)
Action
Unplug the printer.
Disconnect the printhead cables
from J11 and J12 on the controller
card.
Turn the printer on.
On the controller card, verify
+24 V dc on pin 5 at J11 and
+5 V dc on pin 7 at J12.
Verify grounds on pin 4 at J11 and
on pins 2, 6, and 8 at J12.
• If voltages or grounds are
incorrect, check the controller
card. See "Controller card
service check" on page 2-49
more information.
• If voltages are correct, replace the
printhead (comes with cables).
Action
If the exit sensor flag is not resting
within the paper exit sensor during
POST, the printer displays a paper
jam message. Make sure the flag is
operating freely and is correctly
installed.
Make sure the input paper feed
sensors are working properly. A
stuck or incorrectly installed sensor
causes this error.
Diagnostic information
4505
for
2-61