Manual Feed; Double-Sided Printing - Canon LBP-CX Series Service Manual

2. Manual feed
Manual feed is useful for making prints on paper
sizes other than the cassette size. Manual feed is also
used for overlay and double-sided prining. (excluding
B4 paper)
l) Set the printer to manual feed through the exter-
nal device.
2) Confirm that the READY/WAIT indicator goes off
and the PAPER OUT indicator lights. Insert the
paper lengthwise along the manual feed guide
with the side to be printed face up (see Figure
1-9 below).
Note: Do not pull the paper from the manual feed
guide when the printer begins paper feeding.
Pulling the paper out makes JAM.
Figure 1-10
3) When making prints continuously using manual
feed, the next sheet of paper should be inserted
after a delay of about 1.5 seconds or more after
the previous sheet has been completely drawn into
the printer.
Reference:
Printer throughput is 5.1 sheets/minute (for all
paper sizes), given the following conditions.
• Paper should be fed into the printer between
1.5 seconds and time t (below) after the pre-
vious sheet has been drawn into the printer.
Paper size
Paper length
Time t (sec.)
(mm)
Legal 356 2.0
Letter 279 3.5
A4 297 3.0
BS 257 4.0
Table 1-1 Manual paper feeding (standard sizes)
• When the external device specifies manual feed,
the printer outputs TRUE PAPER OUT and
NOT READY status signals (RDY goes FALSE)
to the external device through the interface.
Because of this, the external device should
output a TRUE PRINT command (PRNT
comes TRUE) within 10 ms after the NOT
READY signal becomes FALSE, which means
that paper is on the manual feed guide.
3. Double-sided printing
Double-sided printing is possible using manual
feed. Insert the paper lengthwise along the guide
with the side to be printed face up.
Note: If the paper curls on the first pass, uncurl it
before inserting it into the printer again.
1-8
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BY CANON INC. CANON LBP·CX SERIES REV.2 JULY 1985 PRINTED IN JAPAN (IMPRIME AU JAPON)