JPH0457963U

JPH0457963U -

Info

Publication number: JPH0457963U
Application number: JP10007290U
Authority: JP
Priority date: 1990-09-25
Filing date: 1990-09-25
Publication date: 1992-05-19

Description

[Brief explanation of drawings]

第１図は本考案によるデジタル複写機の全体構
成を示す説明図、第２図は第１図に示した書込部
の構造を示す平面図、第３図は排紙部を示した部
分拡大図、第４図は本考案によるデジタル複写機
を制御する制御ユニツトのブロツク図、第５図は
本考案によるデジタル複写機のイメージスキヤナ
部の構成を示すブロツク図、第６図は本考案によ
るデジタル複写機のコンタクトガラス周辺部を示
す説明図、第７図ａは従来のデジタル複写機にお
ける速度線速を示すグラフ、第７図ｂは本考案の
デジタル複写機における速度線速を示すグラフ、
第８図は本考案のデジタル複写機に用いられるア
ドレス変換回路を示すブロツク図、第９図は排紙
部の動作を示すフローチヤートである。符号の説明、……複写機本体、……自動原
稿搬送装置、……制御ユニツト、１０８……固
体撮像素子（ＣＣＤイメージセンサ）、１２０…
…半導体レーザ、１４０……感光体ドラム、１６
７……切換爪、１９８，１９９……排紙ユニツト
、４０１，４０２……ＣＰＵ、４０９……ソレノ
イドドライバ、４１４……画像制御回路、４１５
……ゲートアレイ、４２０……アドレス変換回路
、４５３……スキヤナユニツト、８０１，８０２
……ＲＡＭ、８０３，８０４，８０５……マルチ
プレクサ、８０６……書き込みカウンタ、８０７
……読み出しカウンタ。 Fig. 1 is an explanatory diagram showing the overall configuration of the digital copying machine according to the present invention, Fig. 2 is a plan view showing the structure of the writing section shown in Fig. 1, and Fig. 3 is a partially enlarged view showing the paper ejection section. 4 is a block diagram of a control unit for controlling the digital copying machine according to the present invention, FIG. 5 is a block diagram showing the configuration of the image scanner section of the digital copying machine according to the present invention, and FIG. 6 is a block diagram according to the present invention. An explanatory diagram showing the peripheral area of the contact glass of a digital copying machine, FIG. 7a is a graph showing linear velocity in a conventional digital copying machine, and FIG. 7b is a graph showing linear velocity in a digital copying machine of the present invention.
FIG. 8 is a block diagram showing an address conversion circuit used in the digital copying machine of the present invention, and FIG. 9 is a flowchart showing the operation of the paper ejecting section. Explanation of symbols: Copying machine main body, automatic document feeder, control unit, 108, solid-state image sensor (CCD image sensor), 120...
... Semiconductor laser, 140 ... Photosensitive drum, 16
7... Switching claw, 198, 199... Paper discharge unit, 401, 402... CPU, 409... Solenoid driver, 414... Image control circuit, 415
... Gate array, 420 ... Address conversion circuit, 453 ... Scanner unit, 801, 802
...RAM, 803, 804, 805...Multiplexer, 806...Write counter, 807
...read counter.

Claims

[Scope of Claim for Utility Model Registration] Reading a document image with a scanner, converting the read image information into a digital signal and storing it, and forming an electrostatic latent image on a photoreceptor based on the image information,
In a digital copying machine that develops the latent image and performs image forming processing, when reading a document image by the scanner,
an image reading means for sequentially reading images from a home position side (image leading edge) and a side opposite to the home position (image trailing edge); address converting means for inputting or outputting data from an address opposite to the data read from the home position side when inputting or outputting an image in a scanner or image outputting means; The home position side (
The image is read from the opposite side of the home position (image trailing edge) and the transfer paper on which the image forming process has been completed is ejected to a different ejection section. A digital copying machine characterized by comprising a control means for controlling the copying machine to perform the following operations.