COPYRIGHT© 2001 CANON INC.
2000 2000 2000 2000
CANON iR105 REV.0 JULY 2001
CHAPTER 3 MAIN CONTROLLER
3-11
2.4 Output Image Processing
The output image data sent to the printer unit is processed as follows:
2.4.1 Smoothing
a. Read Image Output
In the case of text/print photo mode, the 600 × 600-dpi input images are subjected to
smoothing for conversion into 1200-equivalent × 600dpi images.
In smoothing, the image data is compared to several hundred templates of 7 × 7-pixel ma-
trices for replacing of pixels in question.
Notch processing is also performed in this block, as a pattern unique to read images.
b. Printer (PDL) Image Output
Smoothing most suited to PDL is performed, converting 300 × 300-dpi or 600 × 600-dpi
data into 2400-equivalent × 600-dpi data.
2.4.2 Thickening (PDL output only)
If selected using a printer driver, thickening is performed to thicken fine lines for better
reproduction.
PDL output images are thickened by adding 1/2 pixels (1200 dpi) to the top of a horizon-
tal line or 1/2 pixels (1200 dpi) to the right of a vertical line.
2.4.3 Binary-Binary Conversion (read image output only)
Binary-binary density conversion is used as an auxiliary means to correct density during
copying operation.
Summary of Contents for iR105 Series
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Page 561: ...Service Mode COPYRIGHT 2001 CANON INC 2000 CANON iR105 REV 0 JULY 2001 ...
Page 691: ...Error Code COPYRIGHT 2001 CANON INC 2000 CANON iR105 REV 0 JULY 2001 ...
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Page 1012: ...C 10 COPYRIGHT C 2001 CANON INC STANDARD FASTENERS REV 0 FEB 1992 ...
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