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2. IMAGE DATA PROCESSING SECTION
The purpose of the image data processing is to achieve better-looking
prints. After the image data has undergone various image processing by
the system control section, it is sent to the printing section. Image data pro-
cessing is almost the same on both LBP system and BJ system facsimiles.
Fig. 4-1 shows a general flow of image processing.
First of all, part of the image data is stored in memory. Next, the image
data undergoes smoothing, the process for printing oblique and curved sec-
tions of the image data more smoothly. At the same time, in the image area
separation processing, judgment is performed as to whether the image data
is binary data or an image containing half-tones such as a photo. The selec-
tor selects whether or not the data is the original data or smoothing data
based upon the judgment results by the image area separation processing.
The image data is then reduced as necessary by the reproduction ratio pro-
cessing section, and sent to the printing section.
Next, let's describe of the components in a little more detail.
Smoothing
Image data input
processing
Original data
Memory
Matrix data
processing section
Ink saving
/toner saving
Fig. 4-1 Flow of Image Processing
Smoothing data
section
Image area
separation
Judgment result
Image data output
To printing
section
RECORDING SECTION
Reproduction
ratio processing
section
4–3
1
2
3
4
5
6
ït
çi
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