Kyocera TASKalfa 420i Service Manual page 173

Problem
(9) Paper is extremely curled.
A paper jam in the
Check if the paper side
paper feed section is
guides are deformed.
indicated during
copying (jam in 3000-
Defective paper path sen-
sheet paper feeder
sor 1.
horizontal paper con-
veying section).
Jam code 17
Check if PF paper convey-
ing clutch malfunctions.
Electrical problem with PF
paper conveying clutch.
(10) Broken feed switch 1/2/3
A paper jam in the actuator.
paper feed section is
Defective switch.
indicated during
copying (jam in verti-
cal paper conveying
section).
Jam code 18
Defective feed pulleys or
feed rollers.
(11) Broken feed switch 3 actua-
A paper jam in the tor.
paper feed section is
Defective feed switch 3.
indicated during
copying (jam in paper
feeder vertical paper
conveying section).
Broken PF feed switch
Jam code 19
actuator.
Defective PF feed switch.
(12) Broken MP feed switch
A paper jam in the actuator.
paper feed section is
Defective switch.
indicated during
copying (jam in MP
tray vertical paper
conveying section).
Jam code 20
Causes/check procedures Corrective measures
Replace the paper.
Check visually and replace.
With 5 V DC present at CN6-6 on the PF main PWB, check if
CN6-5 on the PF main PWB remains low or high when paper path
sensor 1 is turned on and off. If it does, replace paper path sensor
1.
Run maintenance item U247 and select PF paper conveying
clutch on the touch panel to be turned on and off. Check the status
and remedy if necessary.
Check (see service manual of 3000-sheet paper feeder).
Check visually and replace switch.
Run maintenance item U031 and turn following switch on and off
manually. Replace the switch if indication of the corresponding
switch on the touch panel is not displayed in reverse.
Feed switch 1/2/3, registration switch
Check visually and replace.
Check visually and replace switch.
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 visually and replace switch.
With 5 V DC present at YC3-7 on the PF main PWB, check if YC3-
5 on the PF main PWB remains low or high when the PF feed
switch is turned on and off. If it does, replace the PF feed switch.
Check visually and replace switch.
Run maintenance item U031 and turn following switch on and off
manually. Replace the switch if indication of the corresponding
switch on the touch panel is not displayed in reverse.
MP feed switch, registration switch
2KR/2KS
1-4-15