Phaser 6130 Color Laser Printer Service Manual 5-11
Print-Quality Troubleshooting
Yellow 20% ESS
This test print provides 20% yellow 
density on the whole page. This test is 
used to identify problems with yellow 
toner or another color toner. Compare 
the print with the following chart to 
determine the problem.
■ Fail: Check the yellow Toner 
Cartridge.
■ Pass: Check another Toner 
Cartridge.
Black 20% ESS
This test print provides 20% black 
density on the whole page. This test is 
used to identify problems with black 
toner or another color toner. Compare 
the print with the following chart to 
determine the problem.
■ Fail: Check the black Toner 
Cartridge.
■ Pass: Check another Toner 
Cartridge.
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