Bj Cartridge Guidelines - Canon BJC-70 User Manual

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Clean the print head only when you encounter a print quality problem.
Unnecessary and repetitious print head cleaning wastes ink.
Do not clean the print head during printing. Attempting to do so
causes the printer to eject the current page and data that has not
printed will be lost.

BJ Cartridge Guidelines

You can use either the BC-10 or BC-11 BJ cartridge with the printer. The
BC-10 Black BJ cartridge contains black ink only; the BC-11 Color BJ
cartridge contains both color (cyan, magenta, yellow) and black ink. Use
the BJ-10 Black BJ cartridge when you will be printing with black ink only.
The actual amount of ink that you use will vary depending on the print
density of a page. If the majority of your output is graphics, you may need
to change ink tanks more often than when you are printing text only.
You may need to replace the BJ cartridge or an ink tank when any of the
following conditions exist:
Your printed output is not crisp and clear, and there are gaps in the
characters (missing dots) even after you have cleaned the print head
once or twice (using the quick cleaning procedure).
You have been using the BJ cartridge or ink tank for over six months.
If you are using the BC-11 Color BJ cartridge and one or more colors are not
printing, an ink tank is probably out of ink. See the instructions starting on
page 113 for replacing an ink tank.
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Canon makes numerous ink cartridges; the BC-10 Black and BC-11 Color BJ
cartridges are designed specifically for the BJC-70 printer and are the only
ones you should use. The BCI-10 Black ink tank is designed specifically for
the BC-10 Black BJ cartridge and the BCI-11 Black and BCI-11 Color ink
tanks are designed specifically for the BC-11 Color BJ cartridge; these are
the only ink tanks you should use in these cartridges.
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Maintaining the Printer Chapter 7