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PROCESS
[10] Reversal Processing
This function reverses the input brightness data in order to
reverse black and white when the reverse copy mode is
selected.
[11] Copy γ Correction
The copy γ correction function selects the density curve
corresponding to the density selected by the density button on
the operation panel. The selected density curve is applied to
the data that was subjected to filter/magnification change
processing.
Suitable density curves are provided for the text, photo and text
photo modes.
[12] Selector, SGU
Selector is a function that switches between the image signal
from the electronic RDH, and the read time image processed
signal.
SGU is a function that generates various test patterns.
[13] Write Density Control
The write density control function converts image data to the
optimum laser exposure based on the characteristics related to
the drum like drum potential, toner density, etc.
[15] Image Compression Processing
This processing function stores compressed image data in the
memory to enable a large quantity of image data to be stored
when electronic RDH is used.
[16] Memory
The memory can hold about seventy 8.5 x11 size originals
consisting of average word processor text. The number of
pages will be less than this, if the originals include many
photographs and dot pattern images.
[17] Two-beam control
This function is used to adjust the timing of the laser data from
the two beams and also to detect and correct any deviation
between the two beams.
[14] Error Diffusion Processing
Error diffusion processing is intended to make efficient use of
the installed memory and also to obtain a satisfactory copy
image.
Fig.13
1.5
255
0
Laser exposure level
Copy density
PROCESS-1
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