Plain Paper Optimized Printing Mode (P-Pop); Economy Print Mode (Draft Mode); Standard Mode; High Quality And Fine Mode - Canon QY8-1360-000 Service Manual

BJC-7100

2.2.1 Plain paper optimized printing mode (P-POP)

Only when you select plain paper (in other than draft mode) using the printer driver,
the BJC-7100 ejects ink optimizer from the BC-60's ink optimizer head.
The printer jets the ink optimizer onto the plain paper, followed by the normal ink to
minimize smearing and improve the ink's water resistance.

2.2.2 Economy print mode (Draft mode)

Economy print mode is the fastest print mode of the BJC-7100. Printing is performed
in single passes in bidirectional mode. Because of the speed and bidirectional passes,
no ink optimizer is used in this mode, which also cannot be selected when using the
photo ink system. Because less ink is used in this mode, the printed image is lighter.

2.2.3 Standard mode

The standard mode is further divided into two modes, "speed priority mode" and
"quality priority mode." The speed priority mode is suitable for printing text and
simple illustrations, whereas the quality priority mode is suitable for printing originals
that contain mainly images.
In the speed priority mode, the carriage makes a single pass per line at all times.
This mode is basically unidirectional printing. When only black is being printed, the
printing speed is improved by detecting parts of the original to be printed that do not
contain print data on each horizontal line, and printing in both directions taking
those lines as the threshold between unidirectional and bi-directional printing.
In the quality priority mode, the carriage makes three passes per line to print at
higher quality. In this mode, the printing speed decreases, and photo ink cannot be
used.

2.2.4 High quality and fine mode

Photo print mode uses the thinner inks of the Photo BJ cartridge (BC-62e Photo) to
suppress granularity when printing images with multiple halftones and high contrast.
By combining color and photo inks to achieve nine halftones, not only is the BJC-
7100 able to print high-contrast images, but also the subtle differences in
intermediate tones.
The photo inks are used in the low-density portions to minimize granularity.
600 1200 dpi (8pass) printing process achieves high quality printing without the
photo inks.
Figure 4-9 Photo Print Mode (Image)
4-9
Part 4: Technical Reference
: Photo inks
: Color ink