JPH0171737U

JPH0171737U -

Info

Publication number: JPH0171737U
Application number: JP1987165434U
Authority: JP
Priority date: 1987-10-30
Filing date: 1987-10-30
Publication date: 1989-05-15
Anticipated expiration: 2002-10-30
Also published as: JPH066371Y2

Description

[Brief explanation of the drawing]

第１図は本考案の要部を示す斜視図、第２図は
シエルオープン可能に構成された印字装置の概略
断面図、第３図ａは液晶ヘツドの長手方向の断面
図、第３図ｂは第３図ａの―線断面図、第４
図は従来のプロセスユニツトの斜視図、第５図は
従来の位置決めピンと凹部の当接の様子を示す概
略断面図、第６図は従来例の書込ヘツドの位置決
めを示す断面図、第７図は第６図の要部拡大断面
図である。１２…感光体ドラム、１２ａ…軸、１４…液晶
ヘツド、１８…給紙カセツト、１８ｂ…基準壁、
２２…出射口、３９，４０…ケーシング、３９ａ
…当接面、４０ａ…凹部、４１…位置決めピン、
４２…位置決め部材、４２ｃ…位置決め基準面、
４２ｂ…受部、４３…当接部、４４…スプリング
バネ、４５…転写紙、４６…搬送ガイド、Ｐ…液
晶プリンタ、ＵＢ…上部機体、ＤＢ…下部機体。 Fig. 1 is a perspective view showing the main parts of the present invention, Fig. 2 is a schematic sectional view of a printing device configured to allow shell opening, Fig. 3a is a longitudinal sectional view of the liquid crystal head, and Fig. 3b is a cross-sectional view taken along the line -- of Fig. 3a, Fig. 4
The figure is a perspective view of a conventional process unit, FIG. 5 is a schematic cross-sectional view showing how a conventional positioning pin and a recess come into contact, FIG. 6 is a cross-sectional view showing the positioning of a conventional write head, and FIG. is an enlarged sectional view of the main part of FIG. 6; 12... Photosensitive drum, 12a... Shaft, 14... Liquid crystal head, 18... Paper feed cassette, 18b... Reference wall,
22... Output port, 39, 40... Casing, 39a
...Abutting surface, 40a...Concave portion, 41...Positioning pin,
42... Positioning member, 42c... Positioning reference surface,
42b... Receiving part, 43... Contact part, 44... Spring spring, 45... Transfer paper, 46... Conveyance guide, P... Liquid crystal printer, UB... Upper body, DB... Lower body.

Claims

[Scope of Claim for Utility Model Registration] (1) A rotatably supported image carrier, a writing head that emits an image signal on the surface of the image carrier in accordance with input information, and an image bearing member that is in contact with the writing head. and a positioning member for positioning the writing head in the main scanning direction, and the positioning member also has a regulating portion for regulating a reference position of a side edge in the conveyance direction of the transfer paper onto which the image on the image carrier is transferred. A printing device characterized by: (2) A rod having at least one pair of ends formed with a spherical surface is erected on the write head, and a deep narrow recess corresponding to the rod and capable of accommodating the rod is provided on the support for supporting the image carrier. Utility model registration claim 1, characterized in that the distance between the exit surface of the writing head and the surface of the image carrier is maintained substantially constant by providing a recess and bringing the rod into contact with the deep narrow recess. Printing device as described in section.