Maintaining The Bj Cartridges - Canon Color Bubble Jet BJC-1000 Series User Manual

You may need to replace the BJ cartridge when any of the following
conditions exist:
You have been using the cartridge for over one year.
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
at least five times.
Your output has no ink on it.
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Canon has more engineers dedicated to creating quality ink for providing
the best results for output on Bubble Jet printers than any other
organization. Canon does not prohibit the use of third-party inks and the
use of third-party inks does not invalidate the product's limited warranty.
However, Canon cannot guarantee the quality or performance of your
printer when you are using inks from other suppliers.
Canon's limited warranty does not cover damage caused to Canon's
Bubble Jet products that is attributable to the use of third party parts or
supplies, including inks. The limited warranty remains in effect for its
life once that particular damage has been properly repaired.
For optimum printing results, Canon recommends that you use only
Canon BJ cartridges and Canon BJ tanks.

Maintaining the BJ Cartridges

The most important thing you can do to extend the life of your printer
and to ensure optimum print quality is take care of the BJ cartridges.
C
Spilled ink can stain any surface. Open BJ cartridges carefully, and follow
the guidelines presented here to protect against spilled ink.
Chapter 4
Maintaining the Printer 4-9