Table of Contents
Advertisement
1 M - 13 1 Faulty Paper Feeder Pick-up Motor
P i c k - u p nwtor 2
driwr PCB
DC controller
PCB
I
/ M - 14
Faulty Envelope Feeder Pick-up Motor
1
driver PCB
DC controller
PCB
Envelope
3
feeder pick-up
motor
Envelope
f e e d e r
d r i v e r
PCB
Note:
Before checking the envelope feeder operation, be sure to hold the bottom of the PCB up
or lape il to the frame if the right cover is removed.
Check
paper frrdrr is replaced?
Plarr some paper in the lower cassette
and prrlbmm a test print by using the
printer drivrr tester. After the
prescribed time. do the voltages
belwcen the following pairs of
Crrminals on the paper feeder driver
PCB change from about 24 VDC to
about 15 VDC?
.J852- 1 [A) and 5851.4 (GND)
J852-3 (HI and J85 l-4 [GND)
l
Check
Are Ihe connectors (J601, 5604. 5136,
.I9311 lrom connector 5201 on the DC
controller PCB Lo connertor 5932 on
the envelope feeder driver PCB making
good contact?
Does the problem improve when the
envelope feeder is replaced7
Place some envelopes on the envelope
feeder and perform a test print by
using thr printer driver tester. After
the prescribed time, do the voltages
between the following pairs of
terminals on the envelope feeder driver
PCB rhange from about 24 VDC to
about 15 VDC7
5932.1 (A) and J93 I-4 [GNDI
l
5932.3 (B) and 5932.4 (GNDI
l
1
Procedure
driver PCB. If the problem
persists after replacing the
PCB, replace the DC
controller PCB.
1
lesult
Procedure
N O IR econnect the connectors.
NO
Replace the pick-up motor
driver PCB. If the problem
persists after replacing the
PCB, replace the DC
controller PCB.
Replace the envelope feeder
pick-up motor.
N O
Replace the envelope feeder
driver PCB.
6 - 35
Advertisement
Table of Contents
