3NY
1-3-9
1-3-4 Mechanical problems
Problem
Causes/check procedures
Corrective measures
(1)No paper feed.
Check if the surfaces of the following roll-
ers 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 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 con-
veying 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 cor-
rectly.
Correct.
Содержание PF 320
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