Canon imageRUNNERC1022 Service Manual page 519

*1 Gain correction: The gain ratio of the analog video signal output from CCD is adjusted to be a fixed value.
*2 Move shading correction: Even when the document density is constant, the CCD output level does not become constant due to the following reasons.
Sequence of Operations (printer unit)
imageRUNNER C1022 / imageRUNNER C1022i
<Condition> Full color, Cassette, A4 Single-sided (2 prints, continuous)
Move shading correction *2
HP shift Book Position shift
Start key ON Gain correction *1 Scan movement
STBY SREADY
Reader motor
(M12)
Document lamp
(LAMP1,2)
Reader HP sensor
(SR717)
HP Book Position Read end position
F-1-3
HP shift
HP
: Motor forward
: Motor reverse
: Document lamp ON
: Reader HP sensor ON
3