User Attendance Messages (0-99.99) - Lexmark MS310 Series Service Manual

Action
Step 3
Check the MPF sensor for damage.
Is it free of damage?
Step 4
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 5
a
Remove the left cover.
b
Run a print job from the MPF.
c
Check the MPF solenoid for proper operation.
Does it function properly?
Step 6
a
Make sure the MPF gearbox is free of debris.
b
Check the gears and spring of the MPF gearbox for wear or damage.
Are they free of damage?
Step 7
Does the error remain?

User attendance messages (0-99.99)

User attendance messages (0‑99.99)
User attendance messages
Error code Description
31.21 Capactive Toner Level Sensing (CTLS) reading out of
range.
31.22 Excessive CTLS noise.
31.23 Abrupt change detected in CTLS reading.
31.25 CTLS calibration capacitor reading is too low
Yes
Go to step 4.
Go to step 5.
Go to step 6.
Go to step 7.
Contact the next level
of support.
Action
Go to "CTLS service check" on page
Diagnostic information
84
4514-220, -230
No
Replace the front input
guide. See "Front input
guide removal" on
page 186.
Replace the MPF pick
roller and separator
pad. See "MPF pick
roller removal" on
page 180 and
"Separator pad
removal" on page
188.
Replace the MPF
solenoid. See "MPF
solenoid removal" on
page 147.
Replace the MPF
gearbox. See "MPF
gearbox removal" on
page 149.
The problem is solved.
95.