2NC/2NF/2NG/2NN/3P7/3P8/3P9
1-4-93
1-4-8 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 powder.
Pickup roller
Paper feed roller
MP paper feed roller
Clean with isopropyl alcohol.
Check if the following rollers is deformed.
Pickup roller
Paper feed roller
MP paper feed roller
Check visually and replace any
deformed (see page 1-5-5, 1-5-14).
Defective paper feed clutch or MP
solenoid 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 a cassette 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 separation pulley is worn.
Replace the separation pulley 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 1-5-48).
(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
Registration clutch
Check visually and remedy if necessary.
Summary of Contents for DP-480
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Page 455: ...Installation Guide DP 480 Document processor Installation Guide ...
Page 458: ...2 3 4 5 6 A ...
Page 459: ...3 7 8 9 B C C ...
Page 460: ...4 10 ...
Page 473: ...PF 480 300 sheet Paper feeder Installation Guide ...
Page 476: ...2 5 6 4 3 B M3x8 B M3x8 B M3x8 B M3x8 1 2 ...
Page 477: ...3 9 10 8 7 1 2 ...
Page 478: ...4 13 12 11 1 2 C ...
Page 479: ...5 15 14 E D D E D D E D D E D D ...
Page 482: ...DU 480 duplex unit Installation Guide ...
Page 484: ...1 2 3 1 A B M3x8 ...
Page 485: ...2 6 7 5 4 A A B M3x8 ...
Page 489: ...IB 33 Network interface kit Installation Guide ...
Page 490: ...2 3 1 IB 33 2013 7 303PB56710 01 A B ...
Page 491: ...6 7 5 4 2013 7 303PB56710 01 B YC2007 A ...
Page 492: ...FAX System X Installation Guide ...
Page 495: ...2 5 4 3 2 B M3x8 A YC 2003 ...
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