Lexmark Optra C Service Manual page 51

5045-001
In addition to the cautions on the Material Safety Data Sheet
(MSDS) label attached to the can, observe the following guidelines:
•
When spraying either fuser sensor (PS9 or PS10), place a piece
of absorbent material below the sensor to catch the excess
spray.
•
Use the supplied nozzle and direct the spray into the small
apertures in the inside walls of the sensors.
•
Spray quickly (approximately 1 second applications).
This spray leaves no residue, contains no CFCs and is plastic safe.
Do Not use a substitute spray that has not been tested and is not
plastic safe.
FRU
1 Float
2 Poor
connection/
Dirty Sensor
3 Fuser unit oil
supply route
4 Fuser unit
Mechanical
controller PCB
DC controller
PCB
Action
Ensure the oil float is not catching on its housing and
is free to move.
Check the connections on the oil overflow sensor
connector J29, fuser unit connector J21, (see
Connector (J21)" on page
controller PCB connector J2009. Reconnect them
and replace sensor PS10.
Is the hose between the oil supply bottle and the
gear pump plugged up? Clean or replace the parts.
Replace the fuser unit. If the problem remains,
replace and check as follows:
1. Mechanical controller PCB.
2. DC controller PCB, see
Information" on page
5-37) and mechanical
"DC Controller Board
2-2.
Diagnostic Information 2-19
"Fuser