Input Sensor (S2) Service Check - Lexmark X543 Service Manual

7525-xxx
Step Questions / actions
6 Replace the fuser. See
removal" on page
Does the error clear?

Input sensor (S2) service check

The Input sensor (S2) is part of the autocompensator FRU and is not available otherwise.
Step Questions / actions
1 Enter Diagnostics Menu (turn the printer off,
press and hold
and then release the buttons when the
installed memory and processor speed
displays).
Perform the Base Sensor Test. See
Sensor Test" on page
1. Select Base Sensor Test, and press
Select ( ).
2. Select S2, and press Select (
3. Pull tray 1 out, and rotate the S2 sensor
flag (S2 is located in front of the center
autocompensator mechanism housing.) It
should rotate freely and return to its original
position.
Is the input (S2) sensor flag damaged?
2 Watch the display while rotating the flag.
Does the display indicate Media Clear and
Media Present?
3 Turn the printer off, and remove the rear shield.
See "Rear shield removal" on page
Is the JSP1 cable connector properly
connected to the controller board?
4 Turn the printer on, and check the voltage at
JSP1 pin 15.
Is the voltage approximately +5 V dc?
2-40
Service Manual
"Fuser assembly
4-25.
and , turn the printer on,
"Base
3-18.
).
4-7.
Yes
Problem resolved.
Yes
Replace the
autocompensator
mechanism. See
"Autocompensator
mechanism
(ACM)—standard tray
removal" on page 4-12.
Problem resolved.
Go to step 4.
Replace the
autocompensator
mechanism. See
"Autocompensator
mechanism
(ACM)—standard tray
removal" on page 4-12.
No
Replace the controller
board. See "Controller
board removal" on
page 4-18.
No
Go to step 2.
Go to step 3.
Reseat the connector.
Replace the controller
board. See "Controller
board removal" on
page 4-18.