公开(公告)号：US20150234334A1

公开(公告)日：2015-08-20

申请号：US14435724

申请日：2014-04-09

Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Junya Yoda ,  Yoshiyuki Odaka

IPC: G03G15/00 ,  G03G15/20

CPC classification number: H05B6/145 ,  G03G15/205 ,  G03G15/55 ,  G03G2215/2032 ,  H05B6/107

Abstract: A fixing device is provided with a magnetic flux generating unit, first and second rotary bodies, a fixing belt, a temperature sensing portion, a stopped time measuring portion, an abnormality determination portion, and a heating delay portion. The fixing belt extends between the first and second rotary bodies, and is heated by the first rotary body. The temperature sensing portion is disposed downstream of the first rotary body and senses the temperature of the fixing belt. The stopped time measuring portion measures a time period after heating has been stopped before an instruction to start heating is inputted. The abnormality determination portion determines any abnormality in the fixing belt based on a change in temperature after heating has started. When a stopped time is shorter than a pre-configured time period, the heating delay portion delays the start time via magnetic flux based on the instruction to start heating.

Abstract translation: 定影装置设置有磁通量产生单元，第一和第二旋转体，定影带，温度感测部分，停止时间测量部分，异常判定部分和加热延迟部分。 定影带在第一和第二旋转体之间延伸，并被第一旋转体加热。 温度检测部分设置在第一旋转体的下游并感测定影带的温度。 在输入开始加热指示之前，停止时间测量部分测量在加热停止之后的时间段。 异常判定部基于加热开始后的温度变化来判定定影带的任何异常。 当停止时间比预先配置的时间段短时，加热延迟部分基于开始加热的指令通过磁通量延迟开始时间。

公开(公告)号：US09031427B2

公开(公告)日：2015-05-12

申请号：US14151624

申请日：2014-01-09

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yoshiyuki Odaka

IPC: G03G15/20 ,  G03G15/00

CPC classification number: G03G15/2053 ,  G03G15/205

Abstract: An image forming apparatus includes: an image formation portion; a fixing portion that includes an exciting coil for inductively heating member and a temperature detection member: a main control portion that stops a printing operation when a temperature abnormality is recognized; a notification portion; a power supply portion that supplies power to the exciting coil; and a heating control portion that controls power supply to the exciting coil and detects the power abnormality. When the heating control portion detects a power abnormality, the heating control portion stops the induction heating, provides stop notice; when the main control portion determines, based on the history of the stop notice, whether the temperature abnormality is due to the stop of the induction heating or is not due to the stop of the induction heating.

Abstract translation: 图像形成装置包括：图像形成部; 包括用于感应加热部件的激励线圈和温度检测部件的固定部分：当识别到温度异常时停止打印操作的主控制部分; 通知部分; 向所述励磁线圈供电的供电部; 以及加热控制部，其控制对所述励磁线圈的供电并检测所述电力异常。 当加热控制部分检测到电源异常时，加热控制部分停止感应加热，提供停止通知; 当主控制部分基于停止通知的历史来确定温度异常是由于感应加热的停止还是由于感应加热的停止而导致的。