As the frequency of service maintenance depends on how the Printer is used, there are no specific preventive maintenance intervals. For Service Maintenance purposes, Printer usage is defined by the number of cycles performed by the following components:

-Scan-Axis System - movement of the carriage and flex circuit Printhead insertions.
-Tubes - movement and Tubes septum Printhead insertions.

The number of cycles performed by a part depends on the print mode and the total length of prints performed by the Printer. For example, if Max. Quality print mode is used on Glossy media, the Printer performs 10 passes per inch, whereas Max. Speed on Coated media only requires 1 pass per inch.

There are two different EEROM counters for the number of Carriage cycles and Tubes cycles. For information on Carriage and Tubes usage limits See Warning/Stop Triggers.

There is also an EEROM counter for the number of Printhead insertions in the Carriage. If there are Printhead insertion problems, or Ink Supplies Error Codes occur frequently (See Error Status Messages), the Service Configuration Print (available in Printer Setup/Utilities/Test Prints), indicates usage limits to see whether excessive wear is the likely cause of the problem. Printhead insertion limits are: