Stylus Pro 4880 Field Repair Guide 1/17/08
Reset When Cleaning Unit Change Printer Component, Software Item, LCD Display, Printer Button  Page 180.
Reset When Cleaning Unit Change
Note: Rest When Cleaning Unit Change is used to reset the Cleaning Unit counter.
1. From the Adjustment Wizard for the Pro 4880, select Check Nozzle.
1. Click on Run to reset the Cleaning 
Unit counter.
2. Click on Finish when done.