发明名称 |
Image forming apparatus and image forming method |
摘要 |
An image forming apparatus includes a head; a scanning section; and a transport section. A first region is formed in the head between a nozzle formed at a first end and a first nozzle that is a first predetermined distance away, in the sub-scanning direction, from the nozzle formed at the first end. A second region is formed in the head between a nozzle formed at a second end and a second nozzle that is a second predetermined distance away, in the sub-scanning direction, from the nozzle formed at the second end. When the head, the scanning section, and the transport section form an image on the medium, a moving-average nozzle usage ratio within a region between the first region and the second region changes at a lower rate than moving-average nozzle usage ratios within the first region and the second region. |
申请公布号 |
US9352595(B2) |
申请公布日期 |
2016.05.31 |
申请号 |
US201514920248 |
申请日期 |
2015.10.22 |
申请人 |
Seiko Epson Corporation |
发明人 |
Yuda Tomohiro |
分类号 |
B41J29/393;B41J25/00 |
主分类号 |
B41J29/393 |
代理机构 |
Harness, Dickey & Pierce, P.L.C. |
代理人 |
Harness, Dickey & Pierce, P.L.C. |
主权项 |
1. An image forming apparatus comprising:
a head having a plurality of nozzles which liquid can be ejected onto a medium; a scanning section moving the head in a main-scanning direction; and a transport section that transports the medium in a sub-scanning direction intersecting the main-scanning direction, wherein a first region is formed in the head between a nozzle formed at a first end of the head and a first nozzle that is a first predetermined distance away from the nozzle formed at the first end in the sub-scanning direction, a second region is formed in the head between a nozzle formed at a second end of the head and a second nozzle that is a second predetermined distance away from the second end in the sub-scanning direction, and when the head, the scanning section, and the transport section form an image on the medium, a moving-average nozzle usage ratio within a region between the first region and the second region changes at a lower rate than moving-average nozzle usage ratios within the first region and the second region. |
地址 |
JP |