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2-8
WorkCentre C2424 Service Manual
Scanner and Document Feeder Calibration
There are two types of calibration for the scanner and document feeder: automatic
calibration and manual calibration.
Automatic Calibration
The automatic calibration performed by the sytem is a “white balance” calibration
performed during startup and at pre-programmed intervals of operation. This
calibration ensures that the system detects the response to a given calibration spot and
determines the effects of lamp temperature and age on the image quality of the
system.
Automatic calibration uses built in targets of the system. The target for the flatbed is
on the back of the diverter strip; the target for the DADF is located on the back of a
moveable flap, internal to the DADF. The calibration is automatic at power-up, when
coming out of energy star mode, and at a predetermined schedule based on the length
of time the lamps have been on continuously.
Automatic DADF Calibration
Calibration for the DADF is performed at initial power-up and “as required” with
normal usage of the DADF. The steps are the same for both conditions.
1.
The lamps turn on.
2.
The calibration strip moves back slightly from the home position, to confirm the
home position, then extends into the image path.
s2424-272
Calibration Strip
Содержание WorkCentre C2424/DX
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