The Cassette - Canon MX870 Series User Manual

> Routine Maintenance
Contents
Deeply
Cleaning the Print Head Deeply
If print quality does not improve by the standard cleaning of the Print Head, clean the Print Head deeply.
Cleaning the Print Head deeply consumes more ink than the standard cleaning of the Print Head, so
clean the Print Head deeply only when necessary.
You need to prepare: a sheet of A4 or Letter-sized plain paper
1.
Make sure that the power is turned on.
2.
Make sure that one or more sheets of A4 or Letter-sized plain paper are loaded in

the Cassette.

3.
Open the Paper Output Tray gently, and open the Output Tray Extension.
4.
Clean the Print Head deeply.
Press the Setup button.
(1)
The Setup menu screen will appear.
Select Maintenance
(2)
The Maintenance screen will appear.
Select Deep cleaning, and press the
(3)
The confirmation screen will appear.
Select Yes, and press the
(4)
The machine starts cleaning the Print Head deeply.
Do not perform any other operations until the machine completes the deep cleaning of the Print Head. This
takes about 2 minutes.
The pattern print confirmation screen will appear.
Select Yes, and press the
(5)
The nozzle check pattern will be printed.
When the completion message appears, press the
(6)
The screen will return to the Maintenance screen.
5.
Examine the nozzle check pattern.
Examining the Nozzle Check
See step 1 in
If a particular color is not printed properly, replace the ink tank of that color.
See
Replacing an Ink Tank .
If the problem is not resolved, turn off the power and clean the Print Head deeply again after 24 hours. Do not
disconnect the power plug when turning off the power.
If the problem is still not resolved, the Print Head may be damaged. Contact the service center.
>
When Printing Becomes Faint or Colors Are Incorrect
, and press the
OK
OK
button.
OK
button.
OK
Pattern.
Advanced Guide
> Cleaning the Print Head
button.
button.
button.
OK
Troubleshooting