JPH03100857U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図ないし第８図は本考案の第一実施例を示
すもので、第１図は転写紙搬送路の後部の側面図
、第２図は複写機の内部構造を示す側面図、第３
図は搬送ローラと除電ブラシとの関係を示す斜視
図、第４図は除電ブラシの支持構造を拡大して示
す一部の縦断正面図、第５図は除電ブラシの支持
構造を拡大して示す縦断側面図、第６図は転写紙
の帯電の有無を実験的に測定する設備を示す側面
図、第７図は転写紙の帯電量を実験的に測定する
設備を示す側面図、第８図は除電ブラシの配置と
転写紙の帯電量との関係を実験的に測定する設備
の側面図、第９図および第１０図は本考案の第二
の実施例を示すもので、第９図は転写紙搬送路の
後部の側面図、第１０図は搬送ローラとコロナチ
ヤージヤとの関係を示す斜視図である。 ２２……定着装置、３１……搬送ローラ、３２
……転写紙、３４，４６……除電手段、４９……
遮蔽部。 1 to 8 show a first embodiment of the present invention, in which FIG. 1 is a side view of the rear part of the transfer paper conveyance path, FIG. 2 is a side view showing the internal structure of the copying machine, and FIG.
The figure is a perspective view showing the relationship between the conveyance roller and the static elimination brush, FIG. 4 is a partial longitudinal sectional front view showing an enlarged view of the support structure of the static elimination brush, and FIG. 5 is an enlarged view of the support structure of the static elimination brush. 6 is a side view showing equipment for experimentally measuring the presence or absence of charge on transfer paper; FIG. 7 is a side view showing equipment for experimentally measuring the amount of charge on transfer paper; FIG. 8 is a side view showing equipment for experimentally measuring the amount of charge on transfer paper. 9 is a side view of equipment for experimentally measuring the relationship between the arrangement of static eliminating brushes and the amount of charge on transfer paper; FIGS. 9 and 10 show a second embodiment of the present invention; FIG. FIG. 10 is a side view of the rear part of the transfer paper conveyance path, and a perspective view showing the relationship between the conveyance roller and the corona charger. 22... Fixing device, 31... Conveyance roller, 32
... Transfer paper, 34, 46 ... Static elimination means, 49 ...
Shielding part.

Claims (1)

【実用新案登録請求の範囲】 １ 転写紙の幅方向の一部に接触する長さに定め
られて前記転写紙の搬送経路中に回転自在に設け
られた搬送ローラと、前記転写紙の搬送経路にお
ける少なくとも最下流に位置する前記搬送ローラ
の下流側の近傍に並設されて前記転写紙の前記搬
送ローラに接触した部分のみを除電する除電手段
とよりなることを特徴とする電子写真装置の転写
紙搬送装置。 ２ 搬送ローラの回転面に対応する部分以外の部
分に転写紙に対向する遮蔽部が形成されたコロナ
チヤージヤを除電手段としたことを特徴とする請
求項１記載の電子写真装置の転写紙搬送装置。 ３ 搬送ローラの長さと略一致する長さの除電ブ
ラシを除電手段としたことを特徴とする請求項１
記載の電子写真装置の転写紙搬送装置。[Claims for Utility Model Registration] 1. A conveyance roller that is rotatably provided in the conveyance path of the transfer paper and has a length that contacts a part of the transfer paper in the width direction; and a conveyance roller that is rotatably provided in the conveyance path of the transfer paper; Transferring of an electrophotographic apparatus, comprising: a static eliminator disposed in parallel near the downstream side of at least the most downstream conveying roller, for eliminating static only from a portion of the transfer paper that is in contact with the conveying roller. Paper conveyance device. 2. The transfer paper conveying device for an electrophotographic apparatus according to claim 1, wherein the charge eliminating means is a corona charger in which a shielding portion facing the transfer paper is formed in a portion other than a portion corresponding to the rotating surface of the conveyance roller. 3. Claim 1, characterized in that the static eliminating means is a static eliminating brush having a length that substantially matches the length of the conveying roller.
A transfer paper conveyance device of the electrophotographic apparatus described above.