2HJ/2HK
1-4-32
1-4-5
Mechanical problems
Problem
Causes/check procedures
Corrective measures
(1) No primary paper
feed.
Check if the surfaces of the following rollers
are dirty with paper powder: pickup roller,
feed roller, retard roller and MP feed roller.
Clean with isopropyl alcohol. See page 1-5-
7 and 1-5-11.
Check if the pickup roller, feed roller retard
roller and MP feed roller are deformed.
Check visually and replace any deformed
rollers. See page 1-5-7 and 1-5-11.
Defective installation position of paper feed
drive unit or MP tray paper feed unit.
Check the installation position of paper feed
drive unit or MP tray paper feed unit. See
page 1-5-48 or 1-5-10.
(2) No secondary paper
feed.
Check if the surfaces of the upper and lower
registration rollers are dirty with paper pow-
der.
Clean with isopropyl alcohol.
Defective installation position of paper feed
drive unit or MP tray paper feed unit.
Check the installation position of paper feed
drive unit or MP tray paper feed unit. See
page 1-5-48 or 1-5-10.
(3) Skewed paper feed.
Check if the paper is curled.
Change the paper.
(4) Multiple sheets of
paper are fed at one
time.
Check if the paper is excessively curled.
Change the paper.
Check if the surfaces of the following rollers
are dirty with paper powder: pickup roller,
feed roller, retard roller and MP feed roller.
Clean with isopropyl alcohol. See page 1-5-
7 and 1-5-11.
Check if the pickup roller, feed roller retard
roller and MP feed roller are deformed.
Check visually and replace any deformed
rollers. See page 1-5-7 and 1-5-11.
Deformed guides along the paper conveying
path.
Check visually and replace any deformed
guides.
(5) Paper jams.
Check if the contact between the upper and
lower registration rollers is correct.
Check visually and remedy if necessary.
Replace the pressure spring if it is
deformed.
Check if the press roller*
1
/press belt*
2
is
extremely dirty or deformed.
Clean or replace the press roller*
1
/press
belt*
2
. See page 1-5-26/1-5-33 or 1-3-18.
Check if the contact between the heat roller
and its separation claws is correct.
Repair if any springs are off the separation
claws. See page 1-5-26/1-5-33.
(6) Toner drops on the
paper conveying
path.
Check if the developer unit or drum unit is
extremely dirty.
Clean the developer unit or drum unit. See
page 1-5-12 or 1-5-13.
(7) Abnormal noise is
heard.
Check if the pulleys, rollers and gears operate
smoothly.
Grease the bearings and gears.
Check if the following drive unit are installed
correctly:
Main drive unit
Paper feed drive unit
Correct.
See page 1-5-47 or 1-5-48.
*
1
: 16 ppm printer, *
2
: 20 ppm printer
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