JPS6142553U - developing device - Google Patents

developing device

Info

Publication number
JPS6142553U
JPS6142553U JP12868684U JP12868684U JPS6142553U JP S6142553 U JPS6142553 U JP S6142553U JP 12868684 U JP12868684 U JP 12868684U JP 12868684 U JP12868684 U JP 12868684U JP S6142553 U JPS6142553 U JP S6142553U
Authority
JP
Japan
Prior art keywords
developing device
gap
developing
photosensitive drum
developer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP12868684U
Other languages
Japanese (ja)
Inventor
孝一 松田
勇 小松
Original Assignee
日立工機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日立工機株式会社 filed Critical 日立工機株式会社
Priority to JP12868684U priority Critical patent/JPS6142553U/en
Publication of JPS6142553U publication Critical patent/JPS6142553U/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第1図より第3図は、現像剤の使用枚数による印刷濃度
、トナーの電荷量、およびスペントの変化を示すグラフ
である。 第4図は現像用マグネットロールと感光ドラムのギャッ
プと印刷濃度の関係を示すグラフである。 第5図に、本考案の実施例による印刷濃度変化と現像用
マグネットロールと感光ドラムのギャップの可変状況を
示すグラフである。 第6図には、本考案の一実施例を示す正面図である。 1は感光ドラム、2は現像用マグネットロ一 ′
−ル、3は現像機、4はホイール、5はギャップ調整用
プーリ、6はスプリングA,7はモータA18はプーリ
A,9はテープA1 10はベース、11はスプリング
B1 12はモータB1 13はプーリB1 14はテ
ープBである。
FIGS. 1 to 3 are graphs showing changes in printing density, toner charge amount, and spent amount depending on the number of sheets of developer used. FIG. 4 is a graph showing the relationship between the gap between the developing magnet roll and the photosensitive drum and the printing density. FIG. 5 is a graph showing changes in printing density and variations in the gap between the developing magnet roll and the photosensitive drum according to an embodiment of the present invention. FIG. 6 is a front view showing an embodiment of the present invention. 1 is a photosensitive drum, 2 is a developing magnet roller
3 is the developer, 4 is the wheel, 5 is the gap adjustment pulley, 6 is the spring A, 7 is the motor A, 18 is the pulley A, 9 is the tape A1, 10 is the base, 11 is the spring B1, 12 is the motor B1, 13 is the Pulley B1 14 is tape B.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電子写真方式を用いた印刷装置において、現像用マグネ
ットロールと感光ドラムのギャップを、現像剤の劣化に
従い可変していくギャップ調節装置を装置本体に設けた
ことを特徴とした現像装置。
A developing device, which is a printing device using an electrophotographic method, characterized in that a gap adjustment device is provided in the main body of the device to change the gap between a developing magnet roll and a photosensitive drum according to deterioration of developer.
JP12868684U 1984-08-24 1984-08-24 developing device Pending JPS6142553U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12868684U JPS6142553U (en) 1984-08-24 1984-08-24 developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12868684U JPS6142553U (en) 1984-08-24 1984-08-24 developing device

Publications (1)

Publication Number Publication Date
JPS6142553U true JPS6142553U (en) 1986-03-19

Family

ID=30687310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12868684U Pending JPS6142553U (en) 1984-08-24 1984-08-24 developing device

Country Status (1)

Country Link
JP (1) JPS6142553U (en)

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