Improper Placement Of Originals - Canon FY8-13FW-000DADF-A1 Service Manual

CHAPTER 2 BASIC OPERATION
L. Improper Placement of Originals
An improperly placed original can cause a jam or damage to the original. The machine makes a
check to ensure that all originals are placed properly to prevent jams or damage. The timing of a
check is stored in the microprocessor on the DADF controller, and detection is made in terms of the
presence/absence of paper over a specific sensor.
When the machine detects an improperly placed original, it communicates the fact to its host
copier. (Some copiers show such codes in service mode.)
2-50
COPYRIGHT © 1998 CANON INC.
S4
S1
S7
S3
Paper stopper plate
Figure 2-270
CANON DADF-A1 REV.0 DEC. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
Re-circulating lever
S14
M4
S1 Original tray paper sensor
S3 Registration paper sensor
S7 Pick-up sensor
S14Re-circulation sensor