Canon fax-phone b740 Manuale
Chapter 12
Maintenance
12-7
Maintenance
When to Replace a BJ Cartridge or Ink Tank
In general, you will need to replace a BJ cartridge in the following situations:
• If you have been using a BJ cartridge for over a year.
• If your printed output is not crisp and clear or has gaps in the characters (missing
• If you have been using a BJ cartridge for over a year.
• If your printed output is not crisp and clear or has gaps in the characters (missing
dots).
• If your color printouts appear to be missing a color.
• If the message
• If the message
CHANGE CARTRIDGE
appears in the LCD.
In general, you will need to replace an ink tank in the Color BJ cartridge in the following
situations:
• If you have been using an ink tank for over six months.
• If your output is blank.
• If your printouts appear to be missing a color.
• If the messages
situations:
• If you have been using an ink tank for over six months.
• If your output is blank.
• If your printouts appear to be missing a color.
• If the messages
BLACK INK EMPTY
and/or
COLOR INK EMPTY
appear in the LCD.
Refer to the flow chart on the next page to check if the BJ cartridge or ink tank(s) need
replacing.
replacing.