Hironori Endo

Ink jet printer and ink jet printing method

Nozzle testing before and after nozzle cleaning

Detection of non-operating nozzle by light beam passing through aperture

Method for adjustment and printing system

Method for testing ejection, printing apparatus, method for forming ejection-test pattern, ejection-test pattern, computer-readable medium, and printing system

Method for forming ejection-test pattern, method for testing ejection, printing apparatus, computer-readable medium, and printing system

Printing apparatus, storage medium having a program recorded thereon, pattern, computer system, and printing method

Ink jet recording device and ink drop jetting inspection method for the ink jet recording device

Determination of recording position misalignment adjustment value in main scanning forward and reverse passes

Printing apparatus with missing dot testing