Lexmark WinWriter 100, Руководство по обслуживанию

Страница: 28 / 77

4076-0WJ
17
Transport Service Check
FRU OR PROCEDURE ACTION
1 Transport Motor Check the motor for binds, or loose
motor pulley.
Disconnect the transport motor (J6)
from the system board. Check for 8 to
18 ohms between pins 1 and 2 on the
motor cable. If the reading is incor-
rect, replace the motor.
Check for motor pins shorted to the
motor housing. If you find a pin
shorted to the housing, replace the
motor. If the failure remains, replace
the system board.
2 System Board Turn the printer off and disconnect J6
from the system board. Turn the
printer on and check for a pulse of 3
to 5 V dc between J6-1 and ground
and between J6-2and ground on the
system board as the machine goes
through POST.
3 Carrier Rod Clean the carrier rod. Note: Do not
lubricate the rod or the carrier rod
bearings.
4 Transport Belt
Carrier Guide or Rod
Idler Pulley Parts
Cable Clip Check for worn, loose or broken
parts. Check for obstructions blocking
carrier movement.
5 Encoder Strip Check for wear and dirt.
6 Print Head Cable Be sure connector J1 is fully seated.
Check the cable for damage.
7 Encoder Strip
Print Head Cable
System Board Perform the “Encoder Sensor Test” on
page 19 . If you cannot enter the test,
replace the system board.
8 Maintenance Station A problem with the maintenance sta-
tion can cause carrier movement
problems at the right margin. Go to
the
“Maintenance Station Service
Check” on page 9 .