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When Normal Cleaning Is Not Effective
Note, however, that the medium and powerful cleaning consumes more ink than normal cleaning, and
too-frequent use may damage print heads themselves. Avoid using it more than necessary.
Medium Cleaning
Perform the more powerful "medium cleaning" to solve a print head jam when the problems such as dot drop-
out are not cleared up by the normal cleaning (
Procedure
Perform a printing test.
3
P. 63, "How to Perform a Printing Test"
When a printing test is completed, be sure to remove the media.
Press
CLEANING
MEDIUM CL.
Check the group with dot drop-out by viewing the printing-test results.
With medium cleaning, only groups of the print head having dot drop-out are cleaned.
Printing-test results
Dot drop-out
MEDIUM CL.
_
A B
80
P. 63, "Printing Tests and Normal Cleaning"
.
Press
Press
Group A
Press
is not to be cleaned.
Press
Repeat this procedure to display the groups of only the
heads that require cleaning.
Only groups that is either A or B is displayed are objective for cleaning.
to display the left figure.
.
If the Printing-test Results Are Dif-
ficult to Interpret
Examine the results from different angles
in a well-lighted location. Take advantage
of reflected light to enable visual checking.
to choose the group of heads that
to get rid of the group display.
) occur.
Group B
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