Kyocera TASKalfa 2551ci, Service Manual

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2NP
1-4-88
1-4-5 Mechanical problems
If the part causing the problem was not supplied, use the unit including the part for replacement.
Problem Causes/check procedures Corrective measures
(1)
No primary paper
feed. Check if the surfaces of the following roll-
ers are dirty with paper dusts.
Pickup roller
Paper feed roller
MP paper feed roller Clean with isopropyl alcohol.
Check if any of the following rollers is
deformed.
Pickup roller
Paper feed roller
MP paper feed roller Check visually and replace any
deformed (see page 1-5-8, 1-5-9).
Defective paper feed clutch installation. Check visually and remedy if necessary.
(2)
No secondary paper
feed. Check if the surfaces of the following roll-
ers are dirty with paper powder.
Right registration roller
Left registration roller Clean with isopropyl alcohol.
Defective registration clutch installation. Check visually and remedy if necessary.
(3)
Skewed paper feed. Paper width guide in the cassette are
installed incorrectly. Check the paper width guide visually
and remedy or replace if necessary.
(4)
Multiple sheets of
paper are fed. Check if the paper is excessively curled. Change the paper.
Paper is loaded incorrectly. Load the paper correctly.
Check if the retard roller is worn. Replace the retard roller if it is worn
(see page 1-5-8).
(5)
Paper jams. Check if the paper is excessively curled. Change the paper.
Check if the contact between the right
and left registration rollers is correct. Check visually and remedy if necessary.
Check if the heat roller or press roller is
extremely dirty or deformed. Check visually and replace the fuser
unit (see page 1-5-17).
(6)
Toner drops on the
paper conveying path. Check if the drum unit or developer unit
is extremely dirty. Clean the drum unit or developer unit.
(7)
Abnormal noise is
heard. Check if the rollers, pulleys and gears
operate smoothly. Grease the bushes and gears.
Check if the following clutches are
installed correctly.
Paper feed clutch
Mid clutch
Registration clutch
Duplex clutch Check visually and remedy if necessary.