Kyocera TASKalfa 420i Service Manual page 177

Problem
(27) Defective switch.
An original jams in
DP is indicated dur-
ing copying (jam in
the original feed sec-
Defective motor.
tion).
Jam code 74
(28) Defective switch.
An original jams in
DP is indicated dur-
ing copying (jam in
the original convey-
Defective motor.
ing section).
Jam code 75
(29) Defective switch.
An original jams in
DP is indicated dur-
ing copying (jam in
the original switch-
Defective motor.
back section 1).
Jam code 76
(30) Defective original registra-
tion switch.
An original jams in
DP is indicated dur-
ing copying (jam in
the original switch-
Defective motor.
back section 2).
Jam code 77
(31) A piece of paper torn from
A original jam in the original is caught around
DP is indicated as original feed switch, original
soon as the main registration switch or DP
power switch is timing switch 1/2.
turned on.
Defective switch.
(DP cover open
JAM).
Jam code 78
(32) Defective switch.
An original jams in
DP is indicated dur-
ing copying (jam in
the original eject sec-
Defective motor.
tion).
Jam code 79
Causes/check procedures Corrective measures
Run maintenance item U244 and turn the following switch on and
off manually. Replace the switch if indication of the corresponding
switch on the touch panel is not displayed in reverse.
DP timing switch1, original feed switch, original registration switch
Run maintenance item U243 and select the following motor on the
touch panel to be turned on and off. Check the status and remedy
if necessary.
Original feed motor, original conveying motor
Run maintenance item U244 and turn the following switch on and
off manually. Replace the switch if indication of the corresponding
switch on the touch panel is not displayed in reverse.
Original registration switch, DP timing switch 1/2
Run maintenance item U243 and select the following motor on the
touch panel to be turned on and off. Check the status and remedy
if necessary.
Original feed motor, original conveying motor
Run maintenance item U244 and turn the following switch on and
off manually. Replace the switch if indication of the corresponding
switch on the touch panel is not displayed in reverse.
DP timing switch 1, switchback tray switch
Run maintenance item U243 and select the following motor on the
touch panel to be turned on and off. Check the status and remedy
if necessary.
Original conveying motor, original switchback motor
Run maintenance item U244 and turn the original registration
switch on and off manually. Replace the switch if indication of the
corresponding switch on the touch panel is not displayed in
reverse.
Run maintenance item U243 and select the following motor on the
touch panel to be turned on and off. Check the status and remedy
if necessary.
Original switchback motor, original feed motor
Check visually and remove it, if any.
Run maintenance item U244 and turn the following switch on and
off manually. Replace the switch if indication of the corresponding
switch on the touch panel is not displayed in reverse.
Original feed switch, original registration switch, DP timing switch
1/2
Run maintenance item U244 and turn the following switch on and
off manually. Replace the switch if indication of the corresponding
switch on the touch panel is not displayed in reverse.
DP timing switch 1, original eject switch
Run maintenance item U243 and select the following motor on the
touch panel to be turned on and off. Check the status and remedy
if necessary.
Original feed motor, original switchback motor
2KR/2KS
1-4-19