12-8 Maintenance Chapter 12
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■BCI-21 Colour BJ Tank

Contains the colour ink for the Colour BJ cartridge. When the Colour
BJ tank of the Colour BJ cartridge runs out, replace with this tank.
When to Replace a BJ Cartridge or BJ Tank
How frequently you need to replace a BJ cartridge or tank depends on how you use your unit.
If you print many graphics, halftones, or greyscales, you will need to replace them more often
than if you print mainly text.
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 dots).
• If your colour printouts appear to be missing a colour.
• If the message CHANGE CARTRIDGE appears in the LCD.
In general, you will need to replace a BJ tank in the Colour BJ cartridge in the following
situations:
• If you have been using a BJ tank for over six months.
• If your output is blank.
• If your printouts appear to be missing a colour.
• If the messages BLACK INK EMPTY and/or COLOUR INK EMPTY (COLOR INK EMPTY)
appear in the LCD.
Refer to the flow chart on the next page to check if the BJ cartridge or tank(s) need replacing.
Ink
Cartridge
Made in
Japan
BCl-21
Color