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CHAPTER 2 BASIC OPERATION
Reference: At time of a jam, the copier remembers how may originals it has copied, and sends the information to the ADF controller upon removal of the jam. In response, the ADF controller circulates the originals that have been copied already, and places the originals that have not been copied on the copyboard for copying. For this reason, normal copying operation would not be possible if the number of originals after removal of jams differs from the number of originals before the jam. In the case of [1] in the following diagram, the ADF and the copier will stop to operate, treating the condition as a �different numbers of originals.� Keep in mind, however that, in the case of [2], normal operation will continue.
10 originals are placed on the original tray.
The 8th original jams.
Normal
The originals are put back into order, and placed on the original tray (10 originals).
The first 7 originals (which have been copied) are counted, and copying starts with the 8th original.
(7 originals have been copied) Error [1] 3 originals are set on the original tray. The number of operations are counted, and the ADF is stopped.
Error [2]
10 (originals) - 7 (originals that have been copied) = 3 originals
The 3rd original jams. (2 originals have been copied.)
8 originals are placed on the original tray.
The originals are counted, and then copying starts with the 2nd original.
10 (originals) - 2 (originals that have been copied) = 8 originals
Figure 2-280
1. Resetting To reset in response to wrong placement of originals, remove all originals from the original tray, and place them back again. The copier will indicate a message; follow the instructions.
COPYRIGHT © 1999 CANON INC.
CANON DADF-B1 REV.0 APR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
2-49
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