Canon multipass c3000 Service Manual (en)

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Chapter 1: General Description
1-33
IB7-4
Maintaining BJ Cartridges
One of the most important elements in maintaining your C3000’s
excellent print quality is to clean the BJ cartridge’s print head regularly,
and to replace the BJ ink cartridges and tanks promptly when needed.
Cleaning and Testing the BJ Cartridge Print Head
The print head in the BJ print cartridge contains nozzles through which
ink is propelled onto the paper. To maintain the best possible print
quality, these nozzles need to be cleaned from time to time. Your C3000
is equipped with a print head cleaning function that does this.
If your printouts become faint or streaked, or if their quality otherwise
decreases, clean the print head as described below.
If your printing is faded, you can often correct the problem by adjusting
the print density (contrast) and printing speed. (For instructions, see the
MultiPASS Desktop Manager for Windows
®
User’s Guide.) Try this before
cleaning the print head.
Cleaning the print head uses a small amount of ink. Cleaning too often
significantly reduces the amount of ink in the cartridge, so clean
only when necessary.
1.
Make sure the C3000 is plugged in.
2.
Press FUNCTION, then 
<
<.
3.
Press 
<
< or >
> until CLEANING is displayed.
4.
Press START/COPY
The C3000 beeps once when cleaning is finished, and returns to
Standby mode.
5.
Check whether cleaning corrected the problem by printing or
CLEANING
FUNCTION
START/COPY
1
2
FUNCTION
1