Roland VersaEXPRESS RF-640 - When Uneven Color Issue Occurs

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Maintenance
Maintenance that Should Be Performed Daily
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About Care and Maintenance of Print Heads
Care of the print heads are essential to ensuring optimal printing at all times. There are daily care and periodic
care.
Daily Care and Maintenance
 Printing tests and normal cleaning
It is recommended to perform the printing test and the normal cleaning before daily operation.
 P. 40, "Printing Tests and Cleaning"
Cleaning at Occurrence of Uneven Color Issue
 Light Choke Cleaning
Perform this cleaning when color is uneven and unstable, i.e. darkness or brightness is dierent although
the same data is printed with the same settings.
 P. 56, "When Uneven Color Issue Occurs"
Periodic Care and Maintenance
 Medium cleaning/Powerful cleaning
Perform the medium cleaning or powerful cleaning when the problems such as dot drop-out are not
cleared up by the normal cleaning.
 P. 55, "Medium / Powerful Cleaning"
 Manual Cleaning
Based on your frequency of use, perform the manual cleaning periodically.
 P. 59, "Manual Cleaning"
* The print heads are components that wear out. Periodic replacement is required, with the frequency of
replacement depending on use. Purchase them from your authorized Roland DG Corp. dealer or us.