Canon PIXMA MX870 - Manual (Page 162)

automatically to prevent from drying. If you disconnect the power plug from the wall outlet before
all lamps on the Operation Panel are turned off, the Print Head will not be capped properly and
this will cause drying or clogging.
To disconnect the power plug, be sure to follow this procedure.
Important
If the power plug is disconnected, the date/time settings will be reset and all documents
stored in memory will be lost. Send or print a necessary document, or save it on a memory
card or USB flash drive before disconnecting the power plug.
Print periodically!
Just as the tip of a felt pen becomes dry and unusable if it has not been used for a long time,
even if it is capped, the Print Head too, may become dried or clogged if the machine has not
been used for a long time.
We recommend you to use the machine at least once a month.
Note
Depending on the type of paper, ink may blur if you trace the printed area with a highlight pen or
paint-stick, or bleed if water or sweat comes in contact with the printed area.
Colors are uneven, and print results are blurred.
Tip!: Print the nozzle check pattern to check if the nozzles are
clogged.
If the print head nozzles are clogged, colors may become uneven or the print results may be blurred.
In this case
Print the nozzle check pattern
Check the printed check pattern to see if the nozzles are clogged.
See When Printing Becomes Faint or Colors Are Incorrect .
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Page 162 of 1127 pages Tips on How to Use Your Machine