5-12 Phaser 6130 Color Laser Printer Service Manual
Print-Quality Troubleshooting
CMY 20% ESS
This test print provides 20% density for 
combination of cyan, magenta, and black 
on the whole page. This test is used to 
identify problems with balance of three 
color toners or another toner. Compare 
the print with the following chart to 
determine the problem.
■ Fail: Check the cyan, magenta, or 
yellow Toner Cartridge.
■ Pass: Check the black Toner 
Cartridge.
Gradation ESS
This test print provides 2 - 100% density 
for cyan, magenta, yellow, or black on 
the whole page. This test is used to 
identify problems with the printer 
function or the Image Processor Board. 
Compare the print with the following 
chart to determine the problem.
■ Fail: Check the printer function.
■ Pass: Check the Image Processor 
Board.
s6180-395
s6180-396