发明名称 |
Image forming device |
摘要 |
An image forming device capable of performing both-side printing, statically transferring, by application of a transfer voltage, an unfixed image formed on an image carrier to a recording sheet when passing through a transfer position, and then thermally fixing the unfixed image when the recording sheet passes through a fixing position where a heating rotating body is disposed. The image forming device acquires an index value of a water content at each of a plurality of sheet-passing-direction positions of the recording sheet having undergone thermal fixing of an unfixed image statically transferred onto a first side thereof, and controls, for each of the positions, a transfer voltage applied for statically transferring an unfixed image onto a second side of the recording sheet, so that the lower the water content indexed by the index value of the position, the greater an absolute value of the transfer voltage. |
申请公布号 |
US9405236(B2) |
申请公布日期 |
2016.08.02 |
申请号 |
US201514737828 |
申请日期 |
2015.06.12 |
申请人 |
KONICA MINOLTA, INC. |
发明人 |
Ogushi Takehiro;Yamazaki Shohei |
分类号 |
G03G15/16;G03G15/20;G03G15/23;G03G15/00 |
主分类号 |
G03G15/16 |
代理机构 |
Holtz, Holtz & Volek PC |
代理人 |
Holtz, Holtz & Volek PC |
主权项 |
1. An image forming device capable of performing both-side printing with respect to a recording sheet, the image forming device statically transferring, by application of a transfer voltage, an unfixed image formed on an image carrier to the recording sheet when passing through a transfer position, and then thermally fixing the unfixed image onto the recording sheet when the recording sheet passes through a fixing position where a heating rotating body is disposed, the image forming device comprising:
a water content index acquisition unit configured to acquire an index value of a water content at each of a plurality of sheet-passing-direction positions of the recording sheet having undergone thermal fixing of a first unfixed image statically transferred onto a first side thereof; and a transfer control unit configured to control, for each of the positions of the recording sheet, a transfer voltage applied for statically transferring a second unfixed image onto a second side of the recording sheet, so that the lower the water content indexed by the index value of the position, the greater an absolute value of the transfer voltage. |
地址 |
Tokyo JP |