Cmy 20% Ess - Epson AcuLaser C2900N Service Manual

Chapter 2 Operation of Diagnostic

4.5.9 CMY 20% ESS

Outputs C/M/Y 20% density solid pattern on the whole area of an A4 sheet.
When a PQ problem occurs, this test isolates the problem to the imbalance of C/M/Y toners or the black
toner by comparing the print with the sample chart.
Check result: NG (Check the yellow, magenta, and cyan toners.) OK (Check the black toner.)
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