Oce 3121, Technical & Service Manual

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26 TSM Océ 3121/3122 Error code solving / machine fault solving
23 E401
24 E402
Cause Step Checks Y/N Action
Pick-up roller
sensor (S5) 1 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? 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).
Pick-up motor
(M1) 2 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? 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.
Cause Step Checks Y/N Action
Belt motor clock
sensor (S10) 1 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? 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).
Belt motor (M3) 2 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? 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.