JPH0389459U

JPH0389459U -

Info

Publication number: JPH0389459U
Application number: JP11794789U
Authority: JP
Priority date: 1989-10-09
Filing date: 1989-10-09
Publication date: 1991-09-12

Description

[Brief explanation of the drawing]

第１図は実施例の定着装置の縦断面図、第２図
はこの定着装置が装備されるレーザプリンタの説
明図、第３図は実施例の定着装置の分離爪が離間
した状態を示す縦断面図、第４図乃至第６図はそ
の定着装置の分離爪部分の説明図で第４図は正面
図、第５図は前側側面図、第６図は前側側面図で
保持部材を開放した状態を示す図である。２０……定着ローラ、２５……加圧ローラ、２
６……分離爪、２８……爪保持ステー（保持部材
）、２９，３３……側板（本体機枠）、３１……
押さえ板（接離部材）、３４……回動操作レバー
（操作部材）、Ａ……第１位置、Ｂ……第２位置
。 FIG. 1 is a longitudinal cross-sectional view of the fixing device of the embodiment, FIG. 2 is an explanatory diagram of a laser printer equipped with this fixing device, and FIG. 3 is a longitudinal cross-sectional view of the fixing device of the embodiment showing a state in which the separating claws are separated. 4 to 6 are explanatory diagrams of the separating claw portion of the fixing device, FIG. 4 is a front view, FIG. 5 is a front side view, and FIG. 6 is a front side view with the holding member opened. It is a figure showing a state. 20... Fixing roller, 25... Pressure roller, 2
6...Separation claw, 28...Claw holding stay (holding member), 29, 33...Side plate (main machine frame), 31...
Holding plate (contact/separation member), 34...Rotary operation lever (operation member), A...first position, B...second position.

Claims

[Claims for Utility Model Registration] A pressure roller is brought into pressure contact with the fixing roller, a transfer material carrying an unfixed toner image is passed through the pressure contact portion, and the image is fixed, and the transfer material is removed by a separating claw that is pressed against the fixing roller. The fixing device is separated from the fixing roller and conveyed, and includes a contact/separation member, an operating member, and a holding member, and the contact/separation member contacts or separates from the separation claw to move the separation claw. The operating member is placed in pressure contact with or separated from the fixing roller, and the operating member is provided outside the main machine frame, and the contact/separation member is set at a position where it engages with the contact/separation member and causes the separating claw to come into pressure contact with the fixing roller. First thing to do
position, and a second position in which the approaching/separating member is set at a position where the separating claw is separated from the fixing roller, and the holding member is configured to move the separating claw, the approaching/separating member, and the operation. A fixing device that holds a member, is positioned and supported by a body machine frame on both ends of the fixing roller in the length direction, and can be pulled out toward one end of the fixing roller in the length direction.