Canon PIXMA iP4200 Series Quick Start Manual page 49

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Close the Inner Cover and the Top Cover.
The Print Head Holder moves to the right. The ink tank installation process is now
complete.
Ensure that the Inner Cover is closed. Printing will not occur if the Inner
Cover is open.
The ALARM lamp still flashes orange after the Top Cover is closed if an
ink tank is not installed properly. Open the Top Cover and make sure
that all the ink tanks are installed in the correct order directed on the
label.
To maintain optimal print quality, use an ink tank within six months of
its first use.
Once an ink tank has been used, do not remove it from the printer and
leave it out in the open. This will cause the ink tank to dry out and the
printer may not operate properly if it is reinstalled.
Color ink consumption may occur even when black-and-white or
grayscale printing is specified.
Color ink is consumed in the head cleaning and deep cleaning, which
are necessary to maintain the printer's capabilities.
When you start printing after replacing the ink tank, the printer
executes Print Head Cleaning automatically. Do not perform any other
operations until the Print Head Cleaning finishes. The POWER lamp
flashes green during cleaning.
Printing Maintenance
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