Canon multipass c3000 Service Manual (en)

Document Jam Detection
There are two types of document jams which may occur.
a) Feed jam
Occurs when the leading edge of the original is not detected by the Document
Edge Sensor within 15 seconds after the start of document separation.
b) Eject jam/document too long
Occurs when the document is fed for one meter or more after the detection of
the document’s leading edge, without detecting the document’s trailing edge.
When one of these types of jams occurs, all data which have been read and
stored in memory (which are not part of a page that has already been
completely transmitted or copied) are erased.
Chapter 2: Technical Reference
Separation roller
Separation guide
Figure 2-4 Document Separation