Royal Copystar Ri 4230, Service Manual

Page: 472 / 602

2A3/4
3-6-27
Problem Causes/check procedures Corrective measures
(3)
An original
jams in the
SRDF during
copying (a
jam in the
original feed/
conveying
section).
(4)
An original
jams in the
SRDF during
copying (a
jam in the
original
switchback
section).
(5)
Original jams
frequently.
Check if the original conveying
motor malfunctions.
Check if the middle original
conveying roller and middle
original conveying pulley
contact each
other correctly.
Defective original switchback
switch.
Defective DF timing switch.
Check if the original feed motor
malfunctions.
Check if the original conveying
motor malfunctions.
An original outside the specifi-
cations is used.
The DF forwarding pulleys, DF
original feed pulley or DF
switchback pulley is dirty with
paper powder.
The DF original feed pulley and
the DF separation pulley do not
contact correctly.
Check and remedy.
Check and remedy.
With 5 V DC present at CN6-A6
on the DF driver PCB, check if
CN6-A5 on the DF driver PCB
remains low when the original
switchback switch is turned on
and off. If it does, replace the
original switchback switch.
With 5 V DC present at
CN6-A15 on the DF driver PCB,
check if CN6-A14 on the DF
driver PCB remains low when
the DF timing switch is turned
on and off. If it does, replace
the DF timing switch.
Check and remedy.
Check and remedy.
Use only originals conforming
to the specifications.
Clean with isopropyl alcohol.
Remedy.