INKJET PRINTER AND INKJET PRINTING METHOD

摘要

The discharge unit (3) of an inkjet printer (1) is provided with discharge mechanisms (31a-31d) which discharge microdroplets of colored ink, and a discharge mechanism (32) which discharges microdroplets of transparent ink. A colored image is rendered in a colored image printing area on a printing medium (9) by means of the discharge mechanisms (31a-31d). Furthermore, a code image is rendered in the margin area around the colored image printing area, and the colored image on the printing medium (9) is covered with transparent ink by means of the discharge mechanism (32). In the inkjet printer (1), an increase in the abrasion resistance and security of the colored image is realized while lowering the production cost of the inkjet printer (1) device, by means of a single discharge mechanism (32) coating the colored image and rendering the code image by discharging the same transparent ink.