JPH0217747U

JPH0217747U -

Info

Publication number: JPH0217747U
Application number: JP9503488U
Authority: JP
Priority date: 1988-07-20
Filing date: 1988-07-20
Publication date: 1990-02-06

Description

[Brief explanation of drawings]

第１図は本考案一実施例の構成図、第２図は同
上実施例において上部ユニツトが開放された状態
を示す図、第３図は現像装置を上部ユニツト側に
連行させたときの上部ユニツトの開放状態を示す
図、第４図は現像装置の位置決め手段の一例を示
す図、第５図は現像装置部の側面図、第６図は現
像装置の保持解除機構の一例を示す図、第７図は
同上解除機構の作動が不能となるように同機構が
ロツクされた状態を示す図、第８図は同上解除機
構を自動化した例を示す図、第９図は従来例の概
略構成図である。１１……装置本体、１２……上部ユニツト、１
５……転写材搬送路、２０……現像装置、２５…
…保持台、２８……連行保持レバー、３２……解
除レバー。 Figure 1 is a configuration diagram of one embodiment of the present invention, Figure 2 is a diagram showing the same embodiment with the upper unit opened, and Figure 3 is a diagram of the upper unit when the developing device is brought to the upper unit side. 4 is a diagram showing an example of the positioning means of the developing device. FIG. 5 is a side view of the developing device section. FIG. 6 is a diagram showing an example of the holding release mechanism of the developing device. Fig. 7 is a diagram showing a state in which the above-mentioned release mechanism is locked so that it cannot operate, Fig. 8 is a diagram showing an example in which the above-mentioned release mechanism is automated, and Fig. 9 is a schematic configuration diagram of a conventional example. It is. 11...Device main body, 12...Upper unit, 1
5...Transfer material conveyance path, 20...Developing device, 25...
...Holding stand, 28... Entrainment holding lever, 32... Release lever.

Claims

[Scope of utility model registration request]

an upper unit that is pivotally supported relative to the apparatus main body so as to be rotatable and openable; a transfer material transport path provided on the apparatus main body side that guides the fed transfer material toward the latent image carrier; and the transfer material transport path. A developing device is provided above the device to develop the electrostatic latent image formed on the latent image carrier; a holding means that allows the developing device to be removed from the upper unit; a means that carries and holds the developing device integrally with the upper unit when the transfer material conveyance path on the apparatus main body side is to be opened after opening the upper unit; selectively releasing the integrated holding state of the developing device by the means;
An image forming apparatus characterized by comprising a release means for keeping the developing device at the developing position in this released state regardless of opening of the upper unit.