5-12 Phaser 6180 Color Laser Printer Service Manual
Print-Quality Troubleshooting
Cyan 20% ESS
This test print provides 20% cyan density on the whole page. This test is used 
to identify problems with cyan toner or another color toner. Compare the print 
with the following chart to determine the problem.
■ Fail: Check the cyan Print Cartridge.
■ Pass: Check another Print Cartridge.
s6180-391