Kyocera PF-760, Service Manual

Page: 30 / 59

5H8
1-4-3
(3) Paper misfeeds
Problem Causes/check procedures Corrective measures
(1)
A paper jam in the
paper feed section is
indicated during
copying (no paper
feed from cassette
3).
Jam code 12 Paper is extremely curled. Change the paper.
Broken feed switch 3 actua-
tor. Check visually and replace switch.
Defective feed switch 3. Run maintenance item U031 and turn feed switch 3 on and off
manually. Replace the switch if indication of the corresponding
switch on the touch panel is not displayed in reverse.
Check if the clutch malfunc-
tions. Run maintenance item U247 and select following clutch on the
touch panel to be turned on and off. Check the status and remedy
if necessary.
PF paper feed clutch 1/2, PF paper conveying clutch
Electrical problem with
clutch. Check (see page 1-4-7).
(2)
A paper jam in the
paper feed section is
indicated during
copying (jam in 3000-
sheet paper feeder
horizontal paper con-
veying section).
Jam code 15 Paper is extremely curled. Change the paper.
Check if the paper side
guides are deformed. Check visually and replace.
Defective paper path sen-
sor 3. With 5 V DC present at CN6-12 on the PF main PWB, check if
CN6-11 on the PF main PWB remains low or high when paper
path sensor 3 is turned on and off. If it does, replace paper path
sensor 3.
Check if PF paper feed
clutch 2 malfunctions. Run maintenance item U247 and select PF paper feed clutch 2 on
the touch panel to be turned on and off. Check the status and rem-
edy if necessary.
Electrical problem with PF
paper feed clutch 2. Check (see page 1-4-7).
(3)
A paper jam in the
paper feed section is
indicated during
copying (jam in 3000-
sheet paper feeder
horizontal paper con-
veying section).
Jam code 16 Paper is extremely curled. Change the paper.
Check if the paper side
guides are deformed. Check visually and replace.
Defective paper path sen-
sor 2. With 5 V DC present at CN6-9 on the PF main PWB, check if
CN6-8 on the PF main PWB remains low or high when paper path
sensor 2 is turned on and off. If it does, replace paper path sensor
2.
Check if PF paper feed
clutch 1 malfunctions. Run maintenance item U247 and select PF paper feed clutch 1 on
the touch panel to be turned on and off. Check the status and rem-
edy if necessary.
Electrical problem with PF
paper feed clutch 1. Check (see page 1-4-7).
Y1120 3 0- 5 Service Manual