RISO Inc. Technical Communications
us.riso.com
CHAPTER 13: AF SCANNING SECTION
[ 13 - 4 ]
Note: ABC is an abbreviation for Auto Base Control.
2. AF Original Scanning Mechanism (with Auto-Base Control) -- [Available only on RZ3 models]
This operation occurs only when the original scanning density is set to AUTO.
After the AF original setting operation is completed and if the Start key is pressed for the scanning operation,
the scanner lamp turns ON.
The FB read pulse motor activates immediately to move the lamp carriage to the shading compensating
position, and the shading compensation is done. Then the FB read pulse motor rotates the other way and
brings the lamp carriage to the auto-base control scanning position (3mm +
A
mm in front of the normal AF
scanning position) and stops.
At the same time, the AF read pulse motor rotates in the forward direction to bring the original 26.9mm from
the point in which the AF read sensor turned ON and stops. The CCD reads the background color of the
original. Then the FB read pulse motor moves the lamp carriage to the normal AF scanning position. The AF
read pulse motor starts to feed the original through the AF unit and the read-signal goes ON to start the
scanning. As the tail end of the original goes out of the original read sensor the read-signal goes OFF to end
the scanning. (If the operator has chosen a print paper size smaller than the original, the read-signal turns
OFF after scanning for that size.) After the read-signal turns OFF, the AF read pulse motor rotates at a fast
speed to eject the original out. After a given period of time from the point in which the AF original ejection
sensor detects the original gone out, the AF read pulse motor stops to end the AF original scanning movement.
The auto-base control function is inactive in the Photo, Duo and Dot-screening modes.
* Compensation value
A
= Test Mode No. 3071 (AF-ABC Mirror Position Adjustment.
Содержание RZ2xx Series
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