Scanner And 2Nd/3Rd Mirrors Carriage Moving Mechanism - Minolta Di350 Service Manual

FrameMaker Ver.5.5E(PC) Di350 GENERAL, MECHANICAL/ELECTRICAL
98.12.18
1171SBM1105A

11-5. Scanner and 2nd/3rd Mirrors Carriage Moving Mechanism

<Scanner>
• During a scan, the Scanner projects an even amount of light from the Exposure Lamp
onto the entire surface of the original. The light is reflected from the original to the 1st
Mirror of the scanner and then to the 2nd and 3rd Mirrors.
• The Scanner is driven by the Scanner Motor and front and rear Scanner Drive Cables.
• Scanner speed is determined by the set zoom ratio in reference to the full size mode.
• The Scanner is at home position when Scanner Home Position Sensor 1 is blocked. This
position serves as the reference for the scan motion.
• Scanner Home Position Sensor 2 determines the home position of the Scanner when
AF-7 is used.
<2nd/3rd Mirrors Carriage>
• The 2nd and 3rd Mirrors are mounted to their holder at right angles to each other. They
direct the light reflected off the 1st Mirror through the lens to the CCD.
• The 2nd/3rd Mirrors Carriage is also moved by the Scanner Drive Cables and pulleys
driven by the Scanner Motor. It travels at a speed half that of the Scanner, thereby keep-
ing constant the optical path length between the Original Glass and lens.
Scanner Motor (M5)
2nd/3rd Mirrors Carriage
Electrical Component
M5
Electrical Component
PC12
PC13
Scanner Home Position
Sensor 2 (PC13)
Control Signal
CN3BCR-1~3
Control Signal
CN11BCR-1
CN12BCR-1
M-21
Scanner Home
Position Sensor 1
(PC12)
Scanner
Forward Backward
Rotation
Pulse output
Blocked Unblocked
L
L
1167M112AA
Rotation
H
H