JPH0255250U

JPH0255250U -

Info

Publication number: JPH0255250U
Application number: JP13453988U
Authority: JP
Priority date: 1988-10-17
Filing date: 1988-10-17
Publication date: 1990-04-20
Anticipated expiration: 2003-10-17
Also published as: JP2512699Y2

Description

[Brief explanation of drawings]

第１図は、本考案に従う画像形成装置の一例と
してのレーザビームプリンタの一具体例を簡略的
に示す断面図。第２図は、第１図のレーザビーム
プリンタにおける第１の開閉部材及び第２の開閉
部材並びにこれらに関連する要素を示す部分断面
図。第３図は、第２図の第１の開閉部材を示す斜
視図。第４図は、第２図の第２の開閉部材を示す
斜視図。第５図は、第１図のレーザビームプリン
タにおいて第１の開閉部材及び第２野開閉部材を
夫々閉位置にせしめたときの状態を示す平面図。
第６図は、第１図のレーザビームプリンタにおい
て第１図の送給経路及び第２の送給経路を開放し
た状態を示す図。第７図は、第１の開閉部材を閉
位置に向けて旋回せしめたときの状態を示す図。
第８図は、第７図に対応する平面図。２……装置本体、４……下部枠体、６……上部
枠体、１２……回転ドラム、１８……現像装置、
４８……転写域、５１……搬送経路、６０……第
１の供給手段、６８……第２の供給手段、８６…
…第１の送給経路、９６……第１の送給経路、９
８……受皿、１２４……第１の開閉部材、１２６
……第２の開閉部材、２２０……第１のロツク手
段、２３２……第２のロツク手段。 FIG. 1 is a cross-sectional view schematically showing a specific example of a laser beam printer as an example of an image forming apparatus according to the present invention. FIG. 2 is a partial sectional view showing a first opening/closing member, a second opening/closing member, and related elements in the laser beam printer of FIG. 1. 3 is a perspective view showing the first opening/closing member of FIG. 2; FIG. FIG. 4 is a perspective view showing the second opening/closing member of FIG. 2. FIG. 5 is a plan view showing the laser beam printer of FIG. 1 when the first opening/closing member and the second opening/closing member are respectively in the closed position.
FIG. 6 is a diagram showing a state in which the feeding route and the second feeding route of FIG. 1 are opened in the laser beam printer of FIG. 1; FIG. 7 is a diagram showing the state when the first opening/closing member is turned toward the closed position.
FIG. 8 is a plan view corresponding to FIG. 7. 2... Apparatus body, 4... Lower frame, 6... Upper frame, 12... Rotating drum, 18... Developing device,
48... Transfer area, 51... Conveyance path, 60... First supply means, 68... Second supply means, 86...
...first feeding route, 96...first feeding route, 9
8... saucer, 124... first opening/closing member, 126
...Second opening/closing member, 220...First locking means, 232...Second locking means.

Claims

[Claims for Utility Model Registration] A conveyance path for guiding the sheet member as required through the transfer area, and a first conveyance path for feeding the sheet member to the conveyance path.
a supplying means and a second supplying means; a first feeding path that guides the sheet member sent out from the first feeding means to the conveying path; and a first feeding path that guides the sheet member sent out from the second feeding means. a second feeding means leading to the conveyance path, wherein at least a large portion of one side of the first feeding path is defined by a first opening/closing member, and the other side of the first feeding path is defined by a first opening/closing member; is defined by one side of the second opening/closing member, and at least a majority of the second feeding path is defined by one side of the second opening/closing member;
defined by the other surface of the opening/closing member, and the first opening/closing member has a first position defining one side of the first feeding path and an open position opening the first feeding path. The second opening/closing member has a closed position where one side defines the other side of the first feeding route and the ground defines the second feeding route, and a closed position where one side defines the other side of the first feeding route and the ground defines the second feeding route. The first opening/closing member and the second opening/closing member are pivotable between open positions in which the second feeding path is opened, and further, the first opening/closing member and the second opening/closing member are in the closed position. An image forming apparatus characterized in that the second opening/closing member is configured to be brought into the closed position.