3LB
1-4-2
(3) Paper misfeeds
Problem
Causes/check procedures
Corrective measures
(1)
A paper jam in built-
in finisher is indicated
as soon as the main
power switch is
turned on.
A piece of paper torn from
copy paper is caught
around the paper conveying
switch.
Check visually and remove it, if any.
Defective paper conveying
switch.
With 5 V DC present at YC2-23 on the finisher control PWB,
check if YC2-21 on the finisher control PWB remains low when
the paper conveying switch is turned on and off. If it does, replace
the paper conveying switch.
(2)
A paper jam in built-
in finisher is indicated
during copying (fin-
isher timeout jam).
Jam code 80
Extremely curled paper.
Change the paper.
Defective paper conveying
switch.
With 5 V DC present at YC2-23 on the finisher control PWB,
check if YC2-21 on the finisher control PWB remains low or high
when the paper conveying switch is turned on and off. If it does,
replace the paper conveying switch.
(3)
A paper jam in built-
in finisher is indicated
during copying
(paper jam during
paper insertion to the
finisher).
Jam code 81
Extremely curled paper.
Change the paper.
Defective paper conveying
switch.
With 5 V DC present at YC2-23 on the finisher control PWB,
check if YC2-21 on the finisher control PWB remains low or high
when the paper conveying switch is turned on and off. If it does,
replace the paper conveying switch.
Check if the feedshift roller
or feedshift pulley is
deformed.
Check and remedy.
(4)
A paper jam in built-
in finisher is indicated
during copying (fin-
isher stapler jam).
Jam code 82
The stapler is blocked with
a staple.
Remove the stapler cartridge, and check the cartridge and the sta-
pling section of the stapler. Remove the staple if any.
Defective stapler section.
With 5 V DC present at YC2-24 on the finisher control PWB,
check if YC2-19 on the finisher control PWB remains low or high.
If it does, replace the stapler section.
(5)
A paper jam in built-
in finisher is indicated
during copying (eject
jam).
Jam code 83
Defective paper conveying
switch.
With 5 V DC present at YC2-23 on the finisher control PWB,
check if YC2-21 on the finisher control PWB remains low when
the paper conveying switch is turned on and off. If it does, replace
the paper conveying switch.
Check if the eject roller or
eject pulley is deformed.
Check and remedy.
(6)
A paper jam in built-
in finisher is indicated
during copying (jam
between finisher and
machine).
Jam code 96
Defective paper conveying
switch.
With 5 V DC present at YC2-23 on the finisher control PWB,
check if YC2-21 on the finisher control PWB remains low when
the paper conveying switch is turned on and off. If it does, replace
the paper conveying switch.
Check if the eject roller or
eject pulley is deformed.
Check and remedy.
Service Manual
Y108690-3
Summary of Contents for DF-670
Page 1: ...Option Copier Service Manual Code Y108690 3 DF 670...
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Page 54: ...UPDATING STATUS DATE UPDATED PAGES PAGES CODE 10 2007 1ST EDITION 54 Y108690 3...
