Dirt On Back Of Paper Service Check - Lexmark Optra C Service Manual

5045-001

Dirt On Back Of Paper Service Check

FRU
1 Paper
2 Lower fuser
roller
Attraction roll
Discharge roll
Cleaning brush
3 Attraction roll
and springs
Discharge roll
and springs
High-voltage
contacts
Charge roll
spring
4 Feed guide
Fuser entrance
guide
5 Cleaning brush
motor
Action
Paper must be the correct weight, see
on page 2-50.
See "Spacing Table Service Check" on page 2-69
aid in diagnosing the dirty or failing FRU.
Check the cleaning brush is not damaged and there
is no paper in the cleaning assembly.
Check the attraction and discharge roll for damage,
the high-voltage contacts for dirt or damage and the
attraction and discharge roll springs. Replace parts
as necessary.
Check both guides for dirt or obstructions.
Check the cleaning brush motor connector J55.
Check the resistance of the cleaning brush motor.
Rotate the brush and take several readings. The
resistance should be approximately 40 ohms. Be
sure the cleaning brush motor is cammed into the
transfer drum at the end of a print cycle and that the
cleaning brush motor runs.
If the problem remains, replace the mechanical
controller PCB.
"Print Quality"
Diagnostic Information 2-65
to