CHAPTER 2 OUTLINE OF OPERATION
COPYRIGHT © 2001 CANON INC.
2000 2000 2000 2000
CANON DADF-H1 REV.0 MAR. 2001
2-36
3. Jams
This ADF uses the sensors shown in F02-301-03 to detect document jams. The timing at
which document jam checks are made is stored in ROM on the ADF controller PCB. The
occurrence of a jammed document at a particular sensor is established on the basis of
whether the document is located at that sensor.
When the ADF encounters a jam, it transmits coded information about the jam to the host.
This ADF displays jam codes in two ways:
• Service mode screen on the host
• LED indications on the ADF controller PCB
Service mode screen on the host
F02-301-01
LED indications on the ADF controller PCB
F02-301-02
Jam codes ;
see Table T02-301-01 and later
‘1’ indicates a jam in the machine
LED4
LED2
LED3
LED1
DSW1
PSW1
Summary of Contents for DADF-H1
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