JPH03105176U

JPH03105176U -

Info

Publication number: JPH03105176U
Application number: JP1319190U
Authority: JP
Priority date: 1990-02-14
Filing date: 1990-02-14
Publication date: 1991-10-31

Description

[Brief explanation of drawings]

第１図は本考案一実施例の画像形成装置の概略
構成図、第２図は転写紙搬送ユニツトの構成図、
第３図は転写紙反転搬送ユニツトの構成図、第４
図は転写紙反転搬送ユニツトを転写紙搬送ユニツ
トに取り付けて転写紙反転搬送路を形成した状態
を示す図、第５図は転写紙搬送ユニツト内におい
て転写紙にジヤムを生じた状態を示す図、第６図
は開口閉塞部材を組み付けたガイド板の平面図、
第７図はその断面図、第８図は開口閉塞部材の位
置の切り換えを説明するための図、第９図は別の
例のガイド板の構成図、第１０図はその裏面部を
示した図、第１１図は第９図に示すガイド板や開
口閉塞部材などの斜視図、第１２図は更に別の例
のガイド板と開口閉塞部材との構成斜視図である
。１……潜像担持体としての感光体、１２，１３
……搬送ローラ、１５，４５，５５……ガイド板
、１５ａ，４５ａ，５５ａ……切り欠き開口、２
２……転写紙反転搬送路、２８……中間給紙部、
３３……転写紙反転搬送ユニツト、４４，４５Ａ
，５４……開口閉塞部材。 FIG. 1 is a schematic configuration diagram of an image forming apparatus according to an embodiment of the present invention, FIG. 2 is a configuration diagram of a transfer paper conveyance unit,
Figure 3 is a configuration diagram of the transfer paper reversal conveyance unit, Figure 4
The figure shows a state in which a transfer paper reversal transport unit is attached to the transfer paper transport unit to form a transfer paper reversal transport path, and FIG. 5 shows a state in which a jam has occurred in the transfer paper within the transfer paper transport unit. FIG. 6 is a plan view of the guide plate with the opening closing member assembled;
Fig. 7 is a cross-sectional view thereof, Fig. 8 is a diagram for explaining the switching of the position of the opening closing member, Fig. 9 is a configuration diagram of another example of the guide plate, and Fig. 10 shows its back side. 11 is a perspective view of the guide plate and the opening closing member shown in FIG. 9, and FIG. 12 is a perspective view of the configuration of the guide plate and opening closing member of still another example. 1... Photoreceptor as a latent image carrier, 12, 13
...Conveyance roller, 15, 45, 55...Guide plate, 15a, 45a, 55a...Notch opening, 2
2...Transfer paper reversal conveyance path, 28...Intermediate paper feed section,
33...Transfer paper reversal conveyance unit, 44, 45A
, 54...Opening closing member.

Claims

[Scope of utility model registration request]

A means for transferring the developed image formed on the latent image carrier onto a transfer paper, a means for fixing the transferred image on the transfer paper after the transfer, and a transfer paper reversing conveyance path for reversing the fixed transfer paper from front to back. , an intermediate paper feeding section that temporarily stores the transfer paper that has passed through the transfer paper reversal conveyance path and feeds it toward the transfer section again, and guides the transfer paper after fixing to the transfer paper reversal conveyance path. a pair of conveyance rollers, a guide plate having a notch opening and guiding the transfer paper sent by the pair of conveyance rollers, and conveyance of the transfer paper reversal conveyance path and one of the pair of conveyance rollers. A transfer paper reversing conveyance unit is provided with rollers, and one of the conveyance rollers is positioned in the notch opening at the loading position when loaded into the image forming apparatus main body, and the transfer paper reversal conveyance unit is removed. an opening closing member that is held in a position where the notch opening is closed and held in a position on another guide plate that opens the notch opening when loading the transfer paper reversal conveyance unit. An image forming apparatus equipped with the following.