Kyocera TASKalfa 1800 Service Manual page 181

Check items
Conveying 1. Check the conveying rollers
roller, feed have no paper dusts, toner,
roller or foreign objects
stucked.Check a variation of
the external diameter of the
roller or abrasion is not
observed with the coveying
roller.
2. Turn the cover safety switch
on and perform U030 - Motor
and U032 - Clutch, check
they operate normally.
* : At checking the clutch by
3. Check the conveying roller
rotates without overloading.
Check the axle holder or the
roller shaft are not
contaminated.
Check that the spring has not
fallen off and is mounted so
that it is properly applying
pressure against the rollers
or pulleys.
Sensor 1. Check if it does not operate
with smoothness due to an
abnormal move or dropping
off of the actuator of the
coveying switch.
2. Check that the surface of the
sensor and the recveptor
black felt pieces are not
contaminated with toner,
paper dusts, etc.
3. Perform U031 - Conveying
switch to check the sensors
are normal without flickering,
etc. (see page1-3-21)
Static Check if the location is
susceptible to build static
discharge at the conveying guide
during printing.
Check description
U032, confirm that the
roller won't turn when the
motor is turned on. (see
page 1-3-20,1-3-22)
Corrective measures
Clean the conveying rollers or the pollyes.
If variation in the external diameter or abrasion is
observed, replace.
If the conveying motor or the clutch is inoperative,
replace.
If stained, replace the clutch.
If the clutch is kept turned on due to a tensioned wire,
reroute wires.
Clean the roller axle or the axle holder.Re-assemble it
while checking the pressure of the spring.
Re-assemble the actuator or the return spring.
If dirty, clean the sensor or the black felt piece.
If U031has revealed that the sensor is inoperative,
replace the switch.
Re-assemble and re-wire the static discharge sheet at
the ejection unit or the metal guide at the tranfer unit so
that they are properly grounded.
1-4-9
2NC/2NF/2NG/2NN/3P7/3P8/3P9