E531 - Oce 3121 Technical & Service Manual

32 E531

Cause
Connector (poor
contact)
Motor M5 for the
staple swing
Stapler motor M3 3
Stapler: detection
of position PI4
Stapler home sen-
sor MS7
32 TSM Océ 3121/3122
Step Checks
1 Check the connection of J7 to
the tray control PBA.
2 Connect the + to J7-1 and the –
to J7-2 on the tray control
PBA. Does the voltage change
to approximately 24 V, when
the stapler swings?
Disconnect J7 from the tray
controller PBA. Is the resist-
ance between J7-10 and J7-11
on the harness side about 20
ohm?
4 Connect the + to J7-11 and the
– to J7-10 on the tray control
PBA. Does the voltage change
to approximately 24 V?
5 Set the meter to the DC range.
Connect the + to J7-3 and the –
to J7-4 on the tray control
PBA. Is the voltage approxi-
mately 5 V?
6 Set the meter to the DC range.
Connect the + to J7-8 and the –
to J7-7 on the tray control
PBA. Is the voltage approxi-
mately 5 V?
Y/N Action
Yes Improve the connection.
Yes Replace motor M5.
No Replace motor M3.
Yes Replace motor M3.
Yes Check the wiring to the
stapler position sensor
PI4. If undamaged,
replace the sensor.
Yes Check the wiring to the
home position sensor
MS7. If undamaged,
replace the sensor.
Error code solving / machine fault solving