Lexmark Optra C, Service Manual

Page: 62 / 328

Diagnostic Information 2-29
Error (149) Developer Unit Pressure Failure
Error (152) Tray 2 Power Failure
FRU Action
1 Poor
connection Check the connection on the mechanical controller
PCB connector J2016.
2 Door switch Turn the machine off and disconnect the power cord.
Disconnect connector J7 from the power supply unit.
When you turn the door switch (SW2) ON, is there
continuity between connectors J7-1 (+24VB) and J7-
2 (+24VA)? Replace the door switch.
3 Developing unit Watch the developer unit motor during POST. Does
the developing unit motor rotate? Replace and
check as follows:
1. Developing unit motor.
2. Mechanical controller PCB.
4 Developing
rotary position
sensor
Toner cartridge
position sensor
Mechanical
controller PCB
Check the connections on the mechanical controller
PCB connector J2006, toner cartridge position
sensor connector J59 and developing rotary position
sensor position sensor J60. Replace and check as
follows:
1. Toner cartridge position sensor.
2. Developing rotary position sensor.
3. Mechanical controller PCB.
FRU Action
1 Poor
connection Check the connections on the paper feeder driver
PCB connector J355 and power supply unit
connector J361. Reconnect them.
2 Power supply
unit
Paper feeder
driver PCB
Mechanical
controller PCB
DC controller
PCB Replace the paper feeder power supply unit.
Replace and check as follows:
1. Paper feeder driver PCB.
2. Mechanical controller PCB.
If the problem remains, replace the DC controller
PCB.
See “DC Controller Board Information” on page 2-2.