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12-18 Maintenance Chapter 12
When to Replace the BJ Cartridge
How frequently you need to replace your MultiPASS C70’s BJ cartridge
or one of its BJ tanks depends on how you use your MultiPASS C70. If
you print a good deal of graphics, halftones, or greyscales, you will
need to replace the BJ cartridge more often than if you print mainly text.
(See page A-12 for details on the life expectancy of BJ cartridges.)
To help ensure the maximum life for your cartridges, always follow the
guidelines for cartridge maintenance given on page 12-14.
In general, you will need to replace the BJ cartridge in the following
situations:
❏ If you have been using the BC-21e Colour BJ cartridge for over six
months, or the BX-20 Black BJ cartridge for over a year.
❏ If your printed output is not crisp and clear or has gaps in the
characters (missing dots), even after you have cleaned the print head
five times as described on page 12-17.
❏ If your colour printouts appear to be missing a colour, even after
you have cleaned the print head five times as described on page
12-17.
❏ If the message CHANGE CARTRIDGE appears in the LCD display.
In general, you will need to replace an ink tank in the BC-21e Colour BJ
cartridge in the following situations:
❏ If your output is blank.
❏ If your colour printouts appear to be missing a colour, even after
you have cleaned the print head five times as described on page
12-17.
❏ If the message BLACK INK EMPTY or COLOR INK EMPTY appears
in the LCD display.
Use the procedure on the following page to replace an old BJ cartridge
or change the BJ cartridge to a different one.