Fixing device and image forming apparatus

申请公布号：

US8588628(B2)

申请号：

US201113064201

申请日期：

2011.03.10

申请公布日期：

2013.11.19

申请人：

OGAWA TADASHI;EHARA MASANAO;UENO SATOSHI;SEO HIROSHI;HASE TAKAMASA;YUASA SHUUTAROH;RICOH COMPANY, LIMITED

发明人：

OGAWA TADASHI;EHARA MASANAO;UENO SATOSHI;SEO HIROSHI;HASE TAKAMASA;YUASA SHUUTAROH

分类号：

G03G15/20

主分类号：

G03G15/20

摘要：

A fixing device includes a fixing member, an induction heating unit, a pressing member, and a damage detection unit. The fixing member heats a toner image on a recording medium to fix the toner image onto the recording medium. The induction heating unit heats the fixing member by electromagnetic induction. The pressing member presses the fixing member to form a fixing nip portion. The fixing member includes a heat insulating elastic layer and a sleeve layer. The sleeve layer is located outside the heat insulating elastic layer and is provided with an outer conductive layer that generates heat from a magnetic flux generated by the induction heating unit. The damage detection unit is connected to the outer, conductive layer.