Canon LBP-2000, Service Manual

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4 - 17
CHAPTER 4
III. MEASURES AGAINST JAMS
The Printer’s paper path can broadly be divided into the following 5 blocks:
[1] [5] [4] [2] [3]
[1] Multifeeder pickup block [2] Cassette pickup block
[3] Paper feeder pickup block [4] Transfer/feeding block
[5] Fixing/delivery block
Figure 4-3-1
If the fault in question has been identified as being a jam using the flow chart (Figure 4-1-1), find
the location and then isolate the cause.
3 - 1 . Multifeeder pickup block
<Possible Causes>
1 . The curling of the paper is appreciable.
A c t i o n : Correct the curling. Thereafter, advise the user to correct curling before feeding paper.
2 . The multifeeder pickup roller is worn, deformed, or soiled.
A c t i o n : If the multifeeder pickup roller is soiled, clean it. If label sheets or the like is used
often, leaving dirt and causing pickup faults, advise the user to use the manual feed
tray cleaning tool. (For instructions on how to use the tool, see VII-4 ‘Manual Feed
Pickup Roller’ in Chapter 1.) If wear or deformation is found, replace it.