公开(公告)号：US20150286175A1

公开(公告)日：2015-10-08

申请号：US14674987

申请日：2015-03-31

Applicant: KONICA MINOLTA, INC.

Inventor： Akira OKAMOTO ,  Kenji YAMAMOTO ,  Keigo OGURA ,  Takahiro YOKOYA ,  Hiroyuki FUTAMI

IPC: G03G15/20

CPC classification number: G03G15/2039 ,  G03G15/2042

Abstract: A fixing device includes a roller, a plurality of heaters, a temperature detection unit, and a control unit, wherein when the temperature detection unit detects that the temperature of longitudinal end portions of the roller is lower than a preset reference temperature, the control unit performs full-lighting control on the heater with the largest amount of heat supply to the end portions of the roller, out of the plurality of heaters, and performs lighting control on the heater with the second largest amount of heat supply to the end portions of the roller in a pattern at a predetermined duty ratio, or performs lighting control on the heater with the largest amount of heat supply to the end portions of the roller in a pattern at a predetermined duty ratio, and turns off the heater with the second largest amount of heat supply to the end portions of the roller.

Abstract translation: 定影装置包括辊，多个加热器，温度检测单元和控制单元，其中当温度检测单元检测到辊的纵向端部的温度低于预设的参考温度时，控制单元 对多个加热器中的辊的端部供热量最大的加热器执行全光照明控制，并且对加热器进行第二最大热量的点亮控制 辊子以预定的占空比形成图案，或者以预定的占空比以图案的方式对辊的端部以最大的热量供给的加热器进行照明控制，并且关闭具有第二大的加热器 对辊的端部的供热量。

公开(公告)号：US20180129456A1

公开(公告)日：2018-05-10

申请号：US15790166

申请日：2017-10-23

Applicant: KONICA MINOLTA, INC.

Inventor： Akira OKAMOTO ,  Katsunori TAKAHASHI ,  Takashi NARA ,  Kenji YAMAMOTO

IPC: G06F3/12

CPC classification number: G06F3/1215 ,  G06F3/1241 ,  G06F3/1243 ,  G06F3/1244 ,  G06F3/1281

Abstract: An image forming system includes: a first image forming apparatus; and a second image forming apparatus connected on a downstream side of the first image forming apparatus in a paper conveying direction, wherein the first image forming apparatus includes: a first expander that expands a first image having image expansion time per page including first time; and a first image former that forms the first image expanded by the first expander, onto a first face of paper, and the second image forming apparatus includes: a second expander that expands a second image having image expansion time per page including second time longer than the first time; and a second image former that forms the second image expanded by the second expander, onto the first face on which the first image has been formed.

公开(公告)号：US20170336756A1

公开(公告)日：2017-11-23

申请号：US15598425

申请日：2017-05-18

Applicant: Konica Minolta, Inc.

Inventor： Akira OKAMOTO ,  Keigo OGURA

IPC: G03G21/20

CPC classification number: G03G21/203 ,  G03G15/0189 ,  G03G15/161

Abstract: An image formation apparatus having a recording medium held between a photosensitive drum and a transfer belt and transferring a toner image from the photosensitive drum to the recording medium includes: a first heating unit to which power is supplied directly from outside when power of the apparatus is off; a second heating unit used in heating control when the power of the apparatus is on; a humidity detection unit configured to detect humidity inside the apparatus; and a control unit configured to, when the power of the apparatus is on, heat the transfer belt by controlling the first heating unit and the second heating unit on the basis of output of the humidity detection unit, wherein the transfer belt is heated by the first heating unit when the power of the apparatus is off.