E191 Error In Serial Communication Between Dc Controller Pba And Composite Power Supply Pba; E202 Scanner Home Position Is Not Detected - Oce 3121 Technical & Service Manual

15 E191 Error in serial communication between DC controller
PBA and composite power supply PBA
Cause Step
1
Connector 2
(poor con-
tact)
composite
power sup-
ply PBA and
the DC con-
trol PBA.

16 E202 Scanner home position is not detected.

Cause Step
1
Scanner 2
home sensor
PS1
Scanner
motor M2
DC control
PBA
22 TSM Océ 3121/3122
Checks
Switch OFF, then ON. Is the
problem corrected?
Is the connection between the
connector J102 on the DC
controller PBA and the con-
nector J209 on the composite
power supply PBA normal?
Checks
Is the scanner at home posi-
tion when 'E202' is indi-
cated?
Inspect the Scanner home
sensor PS1.
Replace the scanner motor. Is
the problem solved?
Yes/No Action
Yes End
No Reconnect
Yes Try replacing the follow-
ing items:
I
I
Yes/No Action
Yes
See "The scanner fails
to move forward/in
reverse."
No Check the wiring from
the DC controller PBA
to PS1; if normal,
replace PS1.
Yes End.
Replace the DC control
PBA
Error code solving / machine fault solving
DC control PBA
composite power sup-
ply PBA