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Chapter 6 Maintenance 6-15
Maintenance
When to Replace the BJ Cartridge
How frequently you need to replace your BJ cartridge or one of its BJ tanks
depends on how you use your MultiPASS. If you print a good deal of graphics,
halftones, or grayscales, you will need to replace the BJ cartridge more often than if
you print mainly text. (See page A-5 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 6-11.
In general, you will need to replace the BJ cartridge in the following situations:
❑ If you have been using the BC-21e Color BJ Cartridge for over six months, or
a BC-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 6-14.
❑ If your color printouts appear to be missing a color, even after you have
cleaned the print head five times as described on page 6-14.
❑ If the message CHANGE CARTRIDGE appears in the LCD display.
In general, you will need to replace an ink tank in the BC-21e Color BJ Cartridge in
the following situations:
❑ If your output is blank.
❑ If your color printouts appear to be missing a color, even after you have
cleaned the print head five times as described on page 6-14.
❑ 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 a
BJ cartridge when switching between the BC-21e Color BJ Cartridge and any other
optional BJ cartridge.
You only need to replace the BC-21e Color BJ Cartridge when the print head is
damaged (or after printing approximately 2000 pages). If one of the BJ tanks
(either color or black) in your BC-21e Color BJ Cartridge runs out of ink, refer to
the procedure on page 6-22 to replace the BJ tank.