Canon imageRUNNER 2525 Series Service Manual page 35

■ Basic Sequence
● Basic Sequence at Power-On
● Basic Sequence at Start Key ON (book mode/1 original)
Scanner motor
(M31)
LED
CISHP sensor
(S31)
1. Moves to the start position
after black shading/white shading.
2. Original scan
3. Moves to the standby position
Main power switch
ON
SREADY
Scanner motor
(M31)
LED
CISHP sensor
(S31)
Shading Shading
position
position
1. CIS position check
Black shading/White shading
Start key
ON
STBY SCFW
Shading Leading edge
of original
position
Original glass reading
start position
STBY
CISHP
sensor
Shading Leading edge
HP
position of original
SCRW
Trailing edge
of original
CISHP
sensor
Shading Leading edge
HP
position of original
25
2. Technical Explanation
: Forward movement
: Backward movement
STBY
Shading
position
: Forward movement
: Backward movement
Trailing edge
of original