Anomalous Trichromacy - when colors are seen, but matched differently by the brain.

Dichromacy - one of the three basic color mechanisms is malfunctioning.

I don't profess to know all different types, but there are some that are more subtle to discover than others. He was color blind.Ĭolor blindness doesn't necessarily mean only seeing black and white. One that would stop him dead in his tracks in the printing industry. Before long though, I discovered a hurdle that even he wasn't aware of. I work in the offset printing industry and purchased these plates to diagnose a pressman to see if he was able to perceive color well.Īt first, I took it upon myself to teach him some the basics of ink and water balance. If you would like to skip my story and go right to the color blindness test, you can here. Though these pictures can tell you if you suffer from color blindness, it should not replace an actual diagnosis by purchasing the real Ishihara Color Blindness Test which consists of several plates that diagnose various forms of color blindness.

Ink cartridges installed incorrectly or missing.This is a color blindness test.

The printer test page may not print if it is having a mechanical problem. The ink cartridges need to be clear of anything blocking their path, such as dried ink or paper jams.

It may be time to replace your ink cartridges if your Printhead Cleaning Cycle does not improve print quality. This process prints many pages of text, similar to a printer test page, to flush out ink that has dried on the printhead.

You can find Printhead Cleaning Cycles in the printer's menu settings or under 'Devices and Settings' on your PC. When you complete a Printhead Cleaning Cycle, like the printer's test page, you print many pages to remove any dried ink or irregularities from the cartridge.Ĭlean the printheads. You can find the printhead cleaning cycle in the menu settings on the printer display or in the devices and settings section on your PC. Using the Printhead Cleaning Cycle, clean the printheads.

Color test pattern for printer