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Using Printer Diagnostics 4-9
Testing the Printhead
1. Tap Printhead Dot Resistance from the Print Engine Tests screen to
perform the printhead dot resistance test.
2. The printhead test checks for dot resistance. The dot resistance test
checks each dot on the printhead. The valid range is between 245
and 455.
Note: If the values are not within range, make a note of the values
given and call Service.
3. Tap Back to return to the Print Engine Tests screen, and again to
return to the Printer Diagnostics screen
OR
Tap Done to return to the desktop.