Kyocera TASKalfa 300i Service Manual page 160

2K5
Problem
(28)
A paper jam in
optional document
finisher is indicated
during copying (eject
sensor stay jam).
Jam code 83
(29)
A paper jam in
optional document
finisher is indicated
during copying (eject
sensor non-arrival
jam).
Jam code 92
(30)
A paper jam in
optional document
finisher is indicated
during copying
(reverse sensor jam).
Jam code 93
(31)
A paper jam in
optional document
finisher is indicated
during copying
(paper entry sensor
stay jam).
Jam code 94
1-4-16
Causes/check procedures
Built-in finisher
Defective paper conveying
switch.
Check if the eject roller or
eject pulley is deformed.
Defective eject sensor.
Check if the paper convey-
ing motor malfunctions.
Check if the eject roller and
eject pulley contact each
other.
Check if the eject guide is
deformed.
Defective finisher main
PWB.
Defective reverse sensor.
Check if the reverse motor
malfunctions.
Check if the reverse roller
and reverse pulley contact
each other.
Check if the reverse guide
is deformed.
Defective finisher main
PWB.
Extremely curled paper.
Defective paper entry sen-
sor.
Check if the paper entry
guide is deformed.
Defective finisher main
PWB.
Corrective measures
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 and remedy.
With 5 V DC present at CN5-4 on the finisher main PWB, check if
CN5-6 on the finisher main PWB remains low or high when the
eject sensor is turned on and off. If it does, replace the eject sen-
sor.
Check.
Check and remedy.
Check and remedy.
Replace the finisher main PWB and check for correct operation.
With 5 V DC present at CN14-5 on the finisher main PWB, check
if CN14-7 on the finisher main PWB remains low or high when the
reverse sensor is turned on and off. If it does, replace the reverse
sensor.
Check.
Check and remedy.
Check and remedy.
Replace the finisher main PWB and check for correct operation.
Change the paper.
With 5 V DC present at CN14-1and CN14-3 on the finisher main
PWB, check if CN14-2 and CN14-4 on the main PCB remains low
or high when the paper entry sensor is turned on and off. If it does,
replace the paper entry sensor.
Check and remedy.
Replace the finisher main PWB and check for correct operation.