Keeping The Best Printing Results - Canon PIXMA MX7600 Series Quick Start Manual

Keeping the Best Printing Results

To avoid drying of the Print Head and clogging of the nozzles, note the following.
Note
Ink may blur depending on the paper in the following cases:
– Printed area is traced with a highlight pen or paint-stick
– Printed area is stained with water or sweat
If the print head nozzles get clogged, printouts will become faint or particular colors will not be printed
properly. For details, see "When Printing Becomes Faint or Colors Are Incorrect" on page 113.
When You Turn Off the Machine
Follow the procedure below to turn off the machine.
(1) Press the ON/OFF button to turn off the machine.
(2) Confirm that all the lamps on the Operation Panel have gone out.
(3) Unplug the power cord from the wall outlet.
If you are using a power outlet strip, you can switch it off instead.
When you press the ON/OFF button to turn off the machine, the machine automatically puts a
protective cap on the Print Head to prevent the ink from drying. If you remove the power cord or
switch off the power outlet strip before all the lamps on the Operation Panel go out, this capping
will not be done properly, causing the Print Head to dry and clog.
When You Are Not Using the Machine for a Long Time
When you are not using the machine for a long time, print or copy in both black & white and in
color, or perform Print Head Cleaning, about once a month to prevent degradation of the Print
Head.
Numerous nozzles are installed in the Print Head for high-precision printing. Just as the
uncapped tip of a ballpoint pen or marker becomes dry and unusable if it is not used for a long
period of time, the print head nozzles become blocked by dried ink. Periodically printing or
cleaning the Print Head can prevent this blockage.
If you have not used the machine for a long time, print out the nozzle check pattern to check the
print head condition before printing. See "Printing the Nozzle Check Pattern" on page 114.
Inks Are Stirred on a Regular Basis
The machine automatically stirs inks to achieve maximum printing results. Therefore, printing on
a regular basis helps keep the inks in good condition.
When the machine is not used for an extended period of time, the machine automatically stirs
inks when the machine is turned on. If automatic ink quality maintenance is disabled, the inks
may separate, resulting in uneven densities. Be sure to follow "Performing Ink Quality
Maintenance Manually" on page 122 before printing. For details, refer to "Device Settings" of the
User's Guide on-screen manual.
112 Routine Maintenance