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Maintenance Before the Start of Operations
Cleaning and Printing Test
Perform a printing test to ensure that dot drop-out, dot displacement, and ink dropping do not occur.
• Be sure to perform a printing test before daily operations.
• If dot drop-out, dot displacement, or ink dropping is present after a printing test, perform cleaning again.
1.
Clean the heads.
Head cleaning discharges a small amount of ink from the print head. Wipe off unwanted ink. Cleaning can remove
unwanted ink and clear ink clogging.
Negative pressure is applied to the print heads to hold ink. Head cleaning also allows users to determine whether
the negative pressure value needs to be adjusted. For details of negative pressure adjustment, see
Negative Pressure of the Print Heads."
WARNING
IMPORTANT
• Use new non-woven fabric when cleaning the bottom surface of the print-head carriage. When cleaning the
surface, pay careful attention not to rub the nozzle surfaces.
• Use cleaning sticks when cleaning the print head nozzle surfaces. Cotton swabs or other lint-producing items may
damage the print heads.
• Be sure to clean the print-head carriage on a daily basis to prevent its bottom surface from becoming dirty due to
adhesion of ink and dust. If the bottom surface is dirty, the nozzles may be rubbed with foreign materials and
coagulated ink during cleaning.
Procedure
MEMO
Check that the print-head carriage has returned to the maintenance station. If the machine detects an intrusion
into the movable range of the print-head carriage while the carriage is not in the maintenance station, safety
protection is activated to stop the machine.
P. 20 "How to Clear Activated Safety Protection"
"
A
Place a container at the position shown in the figure below.
70
2.Maintenance
Be sure to wear gloves and goggles before starting operation. Ink may drop or scatter.
P. 87 "Adjusting
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