3.
SCANNER UNIT
3.1 OVERVIEW
An image of the original illuminated by the exposure lamp (a halogen lamp,
75V/160 Watt) is reflected onto a color CCD (Charge Coupled Device) via
the 1st, 2nd, and 3rd mirrors, filter, and lens. The filter removes infra-red; this
is particularly important for glossy photos containing black areas, which can
appear reddish in copies.
The number of scans depends on the copy mode (black, full color, auto color
select, or single color). The scanner moves up to 4 times, once for each
development cycle. The order of the cycles is black, cyan, magenta, and
yellow. The CCD is a one-chip color CCD with an RGB color filter. The
scanning resolution is 400 dpi (5,000 pixels).
Scanner H.P.
Sensor
Lens
Scanner IPU
Board
Original Width
Sensor
Optics Anticondensation
Heater
Optics Cooling Fan
Original Length
Sensor-1
First Scanner
Second Scanner
CCD
Exhaust Fan
Scanner Board
Cooling Fan
Original Length
Sensor-2
Filter
Detailed
Section
Descriptions
SCANNER UNIT
SM 2-29 A166/A187/A189
To Next Page
Loading...
