ALEXANDRIA, Va., May 12 -- United States Patent no. 12,623,466, issued on May 12, was assigned to Kyocera Document Solutions Inc..

"Image forming apparatus" was invented by Jun Nakano (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A first test pattern includes first bands respectively corresponding to nozzle groups of which each includes nozzles with a first interval such that the first band includes thin lines respectively corresponding to the nozzles. A second test pattern includes second bands respectively corresponding to nozzle subgroups of which each includes nozzles with a second interval in each nozzle group such that the second band includes thin blank lines respectively corresponding ...