2FT
1-5-7
(3) Paper misfeeds
Problem
Causes/check procedures
Corrective measures
(1)
A paper jam in the
paper feed, paper
conveying or exit
section is indicated
as soon as the power
switch is turned on.
Jam code 00
A piece of paper torn from
copy paper is caught
around registration switch,
exit sensor or feedshift
switch.
Check visually and remove it, if any.
Defective registration
switch.
Run maintenance item U031 and turn registration switch on and
off manually. Replace registration switch if indication of the corre-
sponding switch is not light.
Defective exit switch.
Run maintenance item U031 and turn exit switch on and off manu-
ally. Replace exit switch if indication of the corresponding switch is
not light.
Defective feedshift switch.
Run maintenance item U031 and turn feedshift switch on and off
manually. Replace feedshift switch if indication of the correspond-
ing switch is not light.
(2)
A paper jam in the
paper feed section is
indicated during
copying (no paper
feed from the bypass
tray).
Jam code 10
Paper on the bypass tray is
extremely curled.
Change the paper.
Check if the bypass paper
feed pulley is deformed.
Check visually and replace any deformed pulley.
Broken registration switch
actuator.
Check visually and replace registration switch if its actuator is bro-
ken.
Defective registration
switch.
Run maintenance item U031 and turn registration switch on and
off manually. Replace registration switch if indication of the corre-
sponding switch is not light.
Check if the bypass paper
feed solenoid malfunctions.
Run maintenance item U032 and select the bypass paper feed
solenoid to be turned on and off. Check the status and remedy if
necessary.
Electrical problem with the
bypass paper feed sole-
noid.
Check (see page 1-5-36).
(3)
A paper jam in the
paper feed section is
indicated during
copying (no paper
feed from the drawer
1).
Jam code 11
Paper in the drawer is
extremely curled.
Change the paper.
Check if the paper feed pul-
ley, separation pulley or for-
ward pulley is deformed.
Check visually and replace any deformed pulley.
Broken registration switch
actuator.
Check visually and replace registration switch if its actuator is bro-
ken.
Defective registration
switch.
Run maintenance item U031 and turn registration switch on and
off manually. Replace registration switch if indication of the corre-
sponding switch is not light.
Check if the paper feed
clutch malfunctions.
Run maintenance item U032 and select the paper feed clutch to
be turned on and off. Check the status and remedy if necessary.
Electrical problem with the
paper feed clutch.
Check (see page 1-5-35).
Summary of Contents for KM-2550
Page 1: ...SERVICE MANUAL Published in June 2005 842FT112 Version 3 0 KM 2550...
Page 4: ...This page is intentionally left blank...
Page 10: ...This page is intentionally left blank...
Page 123: ...2FT 1 1 4 56 This page is intentionally left blank...
Page 249: ...2FT 2 3 2 Figure 2 3 2 Power source PCB silk screen diagram 220 240 V AC 120 V AC...
Page 267: ...2FT 2 3 20 Figure 2 3 10 Operation unit PCB silk screen diagram...
Page 282: ......
