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8
Installing the BJ cartridge
The first time you set up the FAXPHONE, you have to install the BX-3 BJ FAX
cartridge before you can begin receiving and copying documents.
BJ cartridge guidelines _________________________
Use only the Canon BX-3 BJ FAX cartridge with the FAXPHONE B640.
The actual amount of ink that you use will vary depending on the print density of a
page. If the majority of your printed output is graphics, you may need to change the ink
cartridge more often than when you are receiving or copying text only.
You may need to replace the BJ cartridge when either of the following conditions
exist:
❚ Your printed output is not crisp and clear, and there are gaps in the characters (miss-
ing dots) even after you have cleaned the print head once or twice and you have
removed and reinstalled the BJ cartridge.
❚ You have been using the BJ cartridge for over one year.
❚ To ensure optimum print quality, Canon recommends the use of the
cartridges designated by Canon. Canon accepts no liability or responsi-
bility for damages caused by the use of any cartridge other than those
designated by Canon.
❚ Canon makes numerous ink cartridges; the BX-3 BJ FAX cartridge is
the only one designed to be used with the FAXPHONE B640.