Epson AcuLaser C2900N, Service Manual

Page: 242 / 681

2 - 38
Chapter 2 Operation of Diagnostic
Epson AcuLaser C2900N
Revision B
Confidential
4.5.5 Cyan 20% ESS
Outputs the cyan 20% density solid pattern on the whole area of an A4 sheet.
When a PQ problem occurs, this test isolates the problem to the cyan toner or other color toners by
comparing the print with the sample chart.
Check result: NG (Check the cyan toner.) OK (Check other color toners.)
4.5.6 Magenta 20% ESS
Outputs the magenta 20% density solid pattern on the whole area of an A4 sheet.
When a PQ problem occurs, this test isolates the problem to the magenta toner or other color toners by
comparing the print with the sample chart.
Check result: NG (Check the magenta toner.) OK (Check other color toners.)
Leg_Sec02_005FA
Leg_Sec02_006FA