Kyocera PF-430, Service Manual

Page: 22 / 38

5H2
1-3-4
1-3-4 Mechanical problems
Problem Causes/check procedures Corrective measures
(1) No paper feed.
Check if the surfaces of the following rollers
are dirty with paper powder:
Pickup roller, Paper feed roller Clean with isopropyl alcohol.
Check if the pickup roller and paper feed roller
are deformed. Check visually and replace any deformed
rollers.
Defective installation position of drive unit. Check the installation position of drive unit.
Defective paper feed motor. Replace the drive unit. See page P.1-4-4.
(2) Skewed paper feed.
Check if the paper is curled. Change the paper.
(3) Multiple sheets of
paper are fed at one
time.
Check if the paper is excessively curled. Change the paper.
Deformed guides along the paper conveying
path. Check visually and replace any deformed
guides.
(4) Paper jams.
Check if the contact between the pickup roller,
paper feed roller and retard roller is correct. Check visually and remedy if necessary.
Replace the pressure spring if it is
deformed.
(5) Abnormal noise is
heard
Check if the pulleys, rollers and gears operate
smoothly. Grease the bearings and gears.
Check if the drive unit is installed correctly. Correct.