JPH0389458U

JPH0389458U -

Info

Publication number: JPH0389458U
Application number: JP14923689U
Authority: JP
Priority date: 1989-12-25
Filing date: 1989-12-25
Publication date: 1991-09-12

Description

[Brief explanation of the drawing]

第１図は本考案の定着ベルト装置の一実施例の
概要を示す斜視図、第２図は第１図の装置による
スタツクの様子を示す概略図、第３図は本考案の
他の実施例を示す斜視図、第４図は本考案の定着
ベルト装置の応用例を示す概要図、第５図は従来
の定着ベルト装置の一例を示す概要図、第６図は
第５図の方向矢視図、第７図は第５図の装置に
よるスタツクの様子を示す概略図、第８図は従来
における転写紙への腰付け原理を示す図、第９図
は定着ベルトが下排紙ローラまで掛け巡らされて
いない方式の定着ベルト装置の例を示す概略図で
ある。１……発熱部材、２……定着ローラ、４……上
排紙ローラ、４ｄ……ゴム、５……下排紙ローラ
、５ｂ……ゴム、６……定着ベルト、７……ニツ
プ、Ｐ……転写紙（トナー担持体）。 FIG. 1 is a perspective view showing an overview of one embodiment of the fixing belt device of the present invention, FIG. 2 is a schematic diagram showing the state of stacking by the device of FIG. 1, and FIG. 3 is another embodiment of the present invention. FIG. 4 is a schematic diagram showing an application example of the fixing belt device of the present invention, FIG. 5 is a schematic diagram showing an example of a conventional fixing belt device, and FIG. 6 is a view taken in the direction of the arrow in FIG. Fig. 7 is a schematic diagram showing the state of stacking by the device shown in Fig. 5, Fig. 8 is a diagram showing the conventional principle of stiffening the transfer paper, and Fig. 9 shows the fixing belt running up to the lower paper ejection roller. FIG. 2 is a schematic diagram showing an example of a fixing belt device of a non-circulating type. 1...Heating member, 2...Fixing roller, 4...Upper discharge roller, 4d...Rubber, 5...Lower paper discharge roller, 5b...Rubber, 6...Fixing belt, 7...Nip, P ...Transfer paper (toner carrier).

Claims

[Scope of utility model registration request]

A fixing nip for thermally fixing the toner carrier is formed by a fixing roller with a built-in heat generating member and a heat-resistant endless fixing belt wrapped around the lower paper ejection roller so as to be in pressure contact with the fixing roller. In a certain fixing belt device, either the lower paper ejection roller or the upper paper ejection roller that is brought into contact with the lower paper ejection roller is wound in a direction that brings the toner carrier to be ejected from both ends toward the center. A fixing belt device characterized by having a spiral shape.