Canon printer PIXMA MG6821 User Manual

2.Click Deep Cleaning  on the Maintenance  tab
When the  Deep Cleaning  dialog box opens, select the ink group for which deep cleaning is to be
performed.
Click  Initial Check Items  to display the items you need to check before performing deep cleaning.3.
Execute deep cleaning
Make sure that the printer is on and then click  Execute.
Click  OK when the confirmation message appears.
Print head deep cleaning starts.
Important

Aligning the Print HeadWhen you perform head position adjustment, errors in the print head adjustment position are corrected and
conditions such as color and line streaking are improved. If the print results appear uneven because of line shifts or other conditions, adjust the position of the print
head.
On this printer, you can adjust the print head either 
automatically  or manually.
212 

Aligning the Print Head PositionPrint head alignment corrects the installation positions of the print head and improves deviated colors and
lines.
This printer supports two head alignment methods: 
automatic head alignment  and manual head alignment.
The procedure for performing manual print head alignment is as follows:
 Print Head Alignment
1.
Open the printer driver setup window
2.
Click  Custom Settings  on the Maintenance  tab
The  Custom Settings  dialog box opens.
3.
Switch head alignment to...

Enter the numbers of the patterns with the least noticeable streaks in the associated boxes.Even if the patterns with the least noticeable streaks are clicked in the preview window, their numbers are automatically entered in the associated boxes.
When you have entered all the necessary values, click  OK.
Note

When you have entered all the necessary values, click OK.
Note

Printing a Nozzle Check PatternThe nozzle check function allows you to check whether the print head is working properly by printing anozzle check pattern. Print the pattern if printing becomes faint, or if a specific color fails to print.
The procedure for printing a nozzle check pattern is as follows:
 Nozzle Check
1.
Open the printer driver setup window
2.
Click  Nozzle Check  on the Maintenance  tab
The  Nozzle Check  dialog box opens.
Click  Initial Check Items  to display the items that you need to...

Cleaning
Cleaning the Exterior of the Machine
Cleaning the Platen Glass and Document Cover
Cleaning the Paper Feed Roller
Cleaning the Inside of the Machine (Bottom Plate Cleaning)
217 

Cleaning the Exterior of the MachineBe sure to use a soft and dry cloth such as eyeglasses cleaning cloth and wipe off dirt on the surface gently.Smooth out wrinkles on the cloth if necessary before cleaning.
Important

Cleaning the Platen Glass and Document Cover
Important

Cleaning the Paper Feed RollerIf the paper feed roller is dirty or paper powder is attached to it, paper may not be fed properly.
In this case, clean the paper feed roller. Cleaning will wear out the paper feed roller, so perform this only
when necessary.
You need to prepare: three sheets of A4 or Letter-sized plain paper1.
Make sure that the power is turned on.
2.
Flick the HOME screen, then tap   Setup .
Using the Operation Panel
The setup menu screen will appear.
3.
Tap   Maintenance .
The...