Canon BJC-70 User Manual page 68

Print Color option
Click on the arrow next to the Print Color setting to select one of the
following options from the drop-down list:
Black and White
This option prints documents in black ink only. Use this setting when
printing text files that have no color or grayscale images.
When you select Black and White, the Print Quality defaults to
Normal, 360 x 360 dpi. However, the Print Quality may change if you
select a Media Type other than Plain Paper.
Grayscale
This option prints documents in black ink and produces graphic images in
grayscale. This means full color images will be translated and printed in
shades of gray. This setting results in a faster printing speed than the two
color settings, and is useful for printing draft copies of color files.
When you select Grayscale, the Print Quality defaults to Normal,
360 x 360 dpi. However, the Print Quality may change if you select
a Media Type other than Plain Paper.
Color
This option prints documents in full color with up to 24 bits-per-pixel
addressing capability. This setting does not activate the screen matching
feature of the BJC-70 printer driver for Windows. Use this setting for
printing color files that do not require screen matching, such as bar charts
that contain simple colors.
When you select Color, the Print Quality defaults to Normal,
360 x 360 dpi. However, the Print Quality may change if you select
a Media Type other than Plain Paper.
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Using the Printer With Your Software Chapter 4