Lexmark MS312 Service Manual page 65

Note: Make sure the paper guide lightly rests against the edge of the paper.
4
From the printer control panel, press
250 paper jam messages
Error code Description
250.06 Input sensor did not detect sheet picked from
MPF. No other sheets should be in the path.
MPF service check
Action
Step 1
Check the springs, links, and tray guides on the MPF assembly for damage.
Are they free of damage?
Step 2
a
Make sure the MPF sensor cable is properly connected to the
controller board.
b
POR into the Diagnostics menu and perform a sensor test:
Diagnostics Menu > Input Tray Tests > Sensor Tests > Multi‑Purpose
Feeder
Does the sensor state on the control panel display change when it is
toggled?
Step 3
Make sure the MPF pick roller and separator pad are free of debris. Check
both for wear or damage.
Are they free of damage?
Step 4
a
Remove the left cover.
b
POR into the Diagnostics menu and perform a feed test:
Diagnostics Menu > Input Tray Tests > Feed Tests > Multi‑Purpose
Feeder
c
Check the MPF solenoid for proper operation.
Does it function properly?
to clear the message and continue printing.
Action
Go to
Yes
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Diagnostic information
65
"MPF service check" on page
No
Replace the MPF
assembly. See
assembly removal" on
page
Replace the front input
guide. See
guide removal" on
page
Replace the MPF pick
roller and separator
pad. See
roller removal" on
page 198
"Separator pad
removal" on page
206.
Replace the MPF
solenoid. See
solenoid removal" on
page
4514
65.
"MPF
195.
"Front input
204.
"MPF pick
and
"MPF
164.