JPH01157366U

JPH01157366U -

Info

Publication number: JPH01157366U
Application number: JP5152588U
Authority: JP
Priority date: 1988-04-19
Filing date: 1988-04-19
Publication date: 1989-10-30

Description

[Brief explanation of the drawing]

第１図は本考案の実施例の定着装置のローラ及
びクリーニングブレード部を示す縦断面図、第２
図は他の実施例を示すクリーニングブレード及び
分離爪の支持構造を示す縦断面図、第３図は本考
案を適用できる一例であるレーザープリンタの縦
断面図である。２……記録紙（シート状記録材）、１７……ヒ
ートローラ（定着ローラ）、１８……分離爪、２
０……クリーニングブレード、２１……保持部材
、２２……スプリング（加圧手段）、２３……側
カバー（支持部材）、２４……位置決め突起（位
置決め部材）、２５……スプリング（加圧手段）
。 FIG. 1 is a vertical sectional view showing the roller and cleaning blade portion of the fixing device according to the embodiment of the present invention;
The figure is a longitudinal sectional view showing a support structure for a cleaning blade and separation claw showing another embodiment, and FIG. 3 is a longitudinal sectional view of a laser printer to which the present invention can be applied. 2...Recording paper (sheet-like recording material), 17...Heat roller (fixing roller), 18...Separation claw, 2
0... Cleaning blade, 21... Holding member, 22... Spring (pressing means), 23... Side cover (supporting member), 24... Positioning protrusion (positioning member), 25... Spring (pressing means) )
.

Claims

[Claims for Utility Model Registration] (1) In a fixing device that fixes the toner image by bringing a sheet-like recording material having a toner image on the lower surface into contact with the upper part of the fixing roller, the central axis of the fixing roller is A fixing device comprising a cleaning blade whose tip abuts against the surface of the fixing roller over substantially the entire width in the axial direction below a horizontal plane including the fixing roller. (2) A recessed portion having an open top is formed on the rear end side of the cleaning blade and on the side surface opposite to the fixing roller, spanning approximately the entire width of the cleaning blade.
The fixing device described in . (3) A separating claw is rotatably supported and urged by a pressure means to come into contact with the fixing roller and separate the transfer material after fixing, and the cleaning blade is a supporting member and has one end side The separating claw is rotatably supported at the other end thereof, and is urged toward the fixing roller by a pressure means.
The fixing device according to claim 1 or 2, wherein the fixing device is removably supported by a support member that abuts a fixed positioning member.