Powerful Cleaning Method
The print heads are important components that discharge ink. They require periodic and appropriate mainte-
nance. When problems such as dot drop-out are not resolved by medium cleaning, perform the more forceful
"powerful cleaning" to remove clogging from the print heads.
P. 138「Medium Cleaning Method」
IMPORTANT
Powerful cleaning consumes more ink than medium cleaning, and overly frequent use may damage the print heads themselves. Avoid
performing this operaon more than necessary.
1. Prepare for powerful cleaning.
Aer determining the group of print heads on which to perform powerful cleaning, dispose of the discharged uid
to enable the machine to start powerful cleaning.
Procedure
1. Press [FUNCTION].
2. Press [▶].
3. Press [▼] several mes to display the screen shown below.
4. Press [▶] to display the screen shown below.
5.
6. Check for the group with dot drop-out or dot displacement by viewing the results of the prinng test.
Missing blocks indicate dot drop-out. Collapsed or inclined blocks indicate dot displacement.
The space from "A" to "B" is group A. The space from "B" to the right side is group B.
The following gure shows the "TEST PRINT 2" test paern.
MEMO
If the prinng-test results are dicult to interpret
Examine the results from dierent angles in a well-lit locaon. It is visible using the reecon of the light.
7. Select the group of print heads to clean.
(1) Press [◀] or [▶] to select the group of print heads that is not to be cleaned.
(2) Press [▲] or [▼] to get rid of the group display.
When Normal Cleaning Is Not Effective
140 2. Regular Maintenance
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