E401; E402 - Oce 3121 Technical & Service Manual

23 E401

Cause Step Checks
Pick-up roller 1
sensor (S5)
Pick-up motor 2
(M1)

24 E402

Cause Step Checks
Belt motor clock 1
sensor (S10)
Belt motor (M3) 2
26 TSM Océ 3121/3122
Set the meter to the 20VDC
range, and connect the + probe to
J5-2 and the – probe to J5-3 on
the RDF controller PBA. Turn the
flag (light-blocking plate) of the
pick-up roller shaft by hand; is
the voltage about 5 V when the
flag is at the sensor and about
0.15 V otherwise?
Set the meter to the 200VDC
range, and connect the + probe to
J12-1 and – probe to J12-2 on the
RDF controller PBA. Does the
meter reading change to about 22
V when the Copy Start key is
pressed?
Set the meter to the 20VDC
range, and connect the + probe to
J9-18 and the – probe to J9-19 on
the RDF controller PBA. Does
the reading alternate between 5 V
and 0 V when the clock disk is
turned slowly by hand?
Set the meter to the 200VDC
range, and connect the + probe to
J7-1 and the – probe to J7-2 on
the RDF controller PBA. Does
the reading of the meter change
to 23 V when the Copy Start key
is pressed?
Y/N Action
No Check the wiring from
the pick-up roller sensor
(S5) to the RDF control-
ler PBA; if normal,
replace the pick-up roller
sensor (S5).
Yes Check the wiring from
the pick-up motor (M1)
to the RDF controller; if
normal, replace the
pick-up motor (M1).
No Replace the RDF control-
ler PBA.
Y/N Action
No Check the wiring from
the belt motor clock sen-
sor (S10) to the RDF
controller PBA; if nor-
mal, replace the belt
motor clock sensor (S10).
Yes Check the wiring from
the belt motor (M3) to
the RDF controller PBA;
if normal, replace the belt
motor (M3).
No Replace the RDF control-
ler PBA.
Error code solving / machine fault solving