Canon FAX-L260i Service Manual page 64

FAX-L260i Chapter 2: Technical Reference
NOTE
Initializing the upper document feed roller
When the separation roller starts to rotate, the position of the upper document feed roller
is simultaneously initialized to raise the document stopper. Initialization is carried out
when the power is turned ON, when documents are inserted and when documents are
ejected.
Document feed lever
Switching between automatic document feed and manual document feed is
carried out by the document feed lever above the left side of the LCD. During
automatic document feed, documents are gripped between the separation guide
and the separation roller. Switching the lever to manual document feed raises the
separation guide and frees it from the document. Manual document feed can
therefore minimize the possibility of damage caused by pinching between the
separation guide and separation roller when feeding documents such as thick-
stock paper or photographs. However, because document separation does not
occur in manual document feed mode, only one sheet at a time may be loaded.
Loading multiple sheets will result in double feed.
Document Jam Detection
There are two types of document jams which may occur:
a) Feed jam
Occurs when the document edge sensor cannot detect the document's leading edge
within 15 seconds after the start of document separation.
b) Eject jam/document too long
Occurs when the document edge sensor cannot detect the document's trailing edge
within one meter of feeding after the document's leading edge is detected.
When one of these types of jams occurs, all data which have been read and stored in
memory (except pages that have already been completely transmitted or copied) are
erased.
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