JPH049070U

JPH049070U -

Info

Publication number: JPH049070U
Application number: JP4796290U
Authority: JP
Priority date: 1990-05-08
Filing date: 1990-05-08
Publication date: 1992-01-27

Description

[Brief explanation of the drawing]

第１図ａは本考案の実施例を示す縦断正面図、
第１図ｂは側面図、第２図ａは要部の縦断正面図
、第２図ｂは側面図、第３図ａは第一の変形例を
示す要部の縦断正面図、第３図ｂは側面図、第４
図ａは第二の変形例を示す要部の縦断正面図、第
４図ｂは側面図、第５図ａは本出願人が特願平１
−１９９０７１号として提案した先行技術を示す
正面図、第５図ｂは側面図、第６図ないし第８図
は要部の縦断正面図、第９図ａは通電方向を示す
縦断正面図、第９図ｂは縦断側面図、第１０図ａ
は縦断正面図、第１０図ｂは側面図である。２……発熱部材、４……媒体誘導部材、５……
発熱抵抗体層、６……導電体層、８……離型材層
、９……通電電極、１３……フレーム、２６……
定着装置、２７，３６，４０……押圧電極部材、
２８，３５，３８……中空円管部、２９，３４，
３９……固定部、３０，３２，３７……軸受部。 FIG. 1a is a longitudinal sectional front view showing an embodiment of the present invention;
Fig. 1b is a side view, Fig. 2a is a longitudinal sectional front view of the main part, Fig. 2b is a side view, Fig. 3a is a longitudinal sectional front view of the main part showing the first modification, Fig. 3 b is side view, 4th
Figure a is a longitudinal sectional front view of the main part showing the second modification, Figure 4b is a side view, and Figure 5a is a
Figure 5b is a side view, Figures 6 to 8 are longitudinal sectional front views of main parts, Figure 9a is a longitudinal sectional front view showing the current direction, and Figure 9b is a vertical side view, Figure 10a
10b is a longitudinal sectional front view, and FIG. 10b is a side view. 2... Heat generating member, 4... Medium guiding member, 5...
Heat generating resistor layer, 6... Conductor layer, 8... Release material layer, 9... Current-carrying electrode, 13... Frame, 26...
Fixing device, 27, 36, 40...pressing electrode member,
28, 35, 38...Hollow circular tube part, 29, 34,
39... Fixed part, 30, 32, 37... Bearing part.

Claims

[Scope of utility model registration request]

A rotatable annular heating member in which a heating resistor layer with high specific resistance, a conductive layer with low specific resistance, and a release material layer to which developer is difficult to adhere are sequentially formed from the inner circumferential side to the outer circumferential side; a medium guiding member that forms a conveyance path for the recording medium with the outer peripheral surface of the heat generating member; a current-carrying electrode that contacts at least one edge of the heat generating member and is electrically connected to the conductive layer; The heat generating member is formed by fixing a hollow circular pipe portion made of metal that contacts the inner peripheral surface and conducts to the heat generating resistor layer and a bearing portion rotatably supported by the frame through a connecting portion having low thermal conductivity. A fixing device comprising a pressing electrode member that presses and clamps the recording medium between an outer circumferential surface of the fixing device and the medium guiding member.