JPH03272922A - Image forming device - Google Patents
Image forming deviceInfo
- Publication number
- JPH03272922A JPH03272922A JP2070294A JP7029490A JPH03272922A JP H03272922 A JPH03272922 A JP H03272922A JP 2070294 A JP2070294 A JP 2070294A JP 7029490 A JP7029490 A JP 7029490A JP H03272922 A JPH03272922 A JP H03272922A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- turned
- cassette
- load
- image forming
- 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
Links
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 230000003028 elevating effect Effects 0.000 claims description 15
- 238000012790 confirmation Methods 0.000 abstract 2
- 230000005611 electricity Effects 0.000 abstract 2
- 239000013589 supplement Substances 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 9
- 108091008695 photoreceptors Proteins 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 3
- 101100473036 Mus musculus Hnrnpa1 gene Proteins 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
この発明は、主にレーザプリンタや電子写真複写機のよ
うな画像形成装置に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention mainly relates to image forming apparatuses such as laser printers and electrophotographic copying machines.
（ロ）従来の技術
従来、この種の画像形成装置においては、用紙補充時に
は給紙カセットを下降させ、画像形成時には給紙カセッ
トを上昇させるカセット昇降装置を備えたものが知ｅれ
ている。(B) Prior Art Conventionally, image forming apparatuses of this type are equipped with a cassette elevating device that lowers the paper feed cassette when replenishing paper and raises the paper feed cassette during image formation.
（ハ）発明が解決しようとする課題
しかしながら、このようなカセット昇降装置を備えた画
像形成装置において、画像形成作業を終了した時に、装
置の入力電源スィッチをオフにすると、給紙カセットか
上昇した状態に維持されるので、電源を供給しない状態
で用紙を補充したり、用紙の大きさを確認することがて
きないという問題点があった。(c) Problems to be Solved by the Invention However, in an image forming apparatus equipped with such a cassette elevating device, when the input power switch of the apparatus is turned off after image forming work is completed, the paper feed cassette rises. Therefore, there was a problem in that it was not possible to replenish paper or check the size of paper without power being supplied.
この発明はこのような事情を考慮してなさ乙たちのて、
入力電源スィッチがオフされた時には、給紙カセットを
下降させて、用紙の交換・補充やサイズ確認を容易にし
た画像形成装置を提供するものである。This invention was not made with these circumstances in mind.
To provide an image forming apparatus in which a paper feed cassette is lowered when an input power switch is turned off, making it easy to replace and replenish paper and check the size.
に）課題を解決するための手段
この発明は、用紙補充時に給紙カセットを下降さ仕、画
像形成時に給紙力セントを上昇させるカセ・＋１昇降装
置を備えｆ二頭像形成装置において、入力雷、源つ・ら
画像形成用負荷・＼Ｃ）電源供給路を開閉する開閉素子
と、前記入、２．７電源を直接受１づて作動する制御装
置とを備え、か−ノ、ｍＪ記副制御装置、前記開閉素子
に開閉動作を指令する指令手段と、前記開閉系ツ二か閉
から開状態に切り替わっノ二時１−給祇カセントを下降
させ、開から閉状態に切り替わった時に給紙カセットを
上昇させるカセット昇降装置用駆動手段とを有すること
を特徴どする画像形成装置である。B) Means for Solving the Problems This invention provides a two-headed image forming apparatus equipped with a cassette +1 lifting device that lowers the paper feeding cassette when replenishing paper and raises the paper feeding power cent when forming an image. , source and image forming load ＼C) A switching element for opening and closing a power supply path, and a control device that directly receives and operates the power supply described above in 2.7. A sub-control device, a command means for instructing the opening/closing element to open/close, and a command means for instructing the opening/closing element to perform opening/closing operations; The image forming apparatus is characterized in that it has a drive means for a cassette elevating device that raises a paper cassette.
（ホ）作用
制御装置二つ指令手段によって、開閉素子をオフ、才！
５１つち、開状態にすると画像形成用負荷へ・つ電源か
遮断さ、ｆ二、カセット昇降装置用駆動手段が作動して
給紙力セントを下降させる。ま７こ、開閉素子を開から
閉状態にすると、画像形成用負荷に電源か入力さ牙］、
カセット昇降装置用駆動手段かカセットを上昇させろ、
１従って、画像形成用負荷−＼の入力電源を遮断してち
、給紙カセットが下降して、用紙の補充・交換、又は確
認が容易となる。(E) Operation control device Turn off the switching element by two command means!
51, when it is in the open state, the power supply to the image forming load is cut off, and f2, the drive means for the cassette lifting device is activated to lower the paper feeding force. 7) When the switching element is changed from open to closed, power is input to the image forming load.
Raise the cassette using the drive means for the cassette lifting device.
1. Therefore, after cutting off the input power to the image forming load -\, the paper feed cassette is lowered, making it easy to replenish, replace, or check the paper.
（へ）実施例
以下、図面に示す実施例に基ついてこの発明を詳述する
。こＣ９によってこの発明か限定さ判るものではない。(f) Examples The present invention will now be described in detail based on examples shown in the drawings. This C9 does not determine whether the invention is limited or not.
第１図はこの発明の一実施例の電子写真複写機を示す斜
視図であり、１は電子写真複写機本体、２は原稿カバー
、３は操作パネル、４は本体１のメンテナンス時に開閉
する前カバー、５は本体１から引き出され用紙６を補充
したのち本体１に収納される給紙カセット、７は本体１
において複写された用紙が排出される排出トレイ、８は
本体ｌの入力電源をオン・オフする電源スィッチである
。FIG. 1 is a perspective view showing an electrophotographic copying machine according to an embodiment of the present invention, in which 1 is the main body of the electrophotographic copying machine, 2 is a document cover, 3 is an operation panel, and 4 is a front panel that is opened and closed during maintenance of the main body 1. A cover, 5, a paper feed cassette that is pulled out from the main body 1 and refilled with paper 6, and then stored in the main body 1, 7, a main body 1
8 is a power switch for turning on and off the input power of the main body l.
第２図は第１図に示す電子写真複写機の構成説明図であ
り、９は原稿を載置するコンタクトガラス、１０は原稿
を露光する露光ランプ、１１〜１３は露光ランプ１０に
よって露光さＣ９た原稿かるの画像光を結像レンズ１４
に導くミラー １５〜１７は結像レンズ１４からの画像
光を感光体ドラム１８に導くミラー １９は感光体ドラ
ム１８を一様に帯電させるメインチャーツヤ、２０は画
像光によって感光体トラム１８上に形成さＣ７た静尾潜
像を現像する現像裂開、２１は用紙６をカセソ）・５か
占送出する給紙コロ、２２：ま送出された用紙を送給す
る送給ローラ、２３は感光体ドラム１８の回転にタイミ
ングを合わせて用紙を送給するレジストローラ、２４：
ま感光体ドラム１８ （７） ｌ−ナー像を用紙に転写
させる転写チャーツヤ、２５は転写された用紙を感光体
ドラム１８か４分Ｓする分離チャージャ、２６は感光体
ドラム１８から分離されｆコ用紙を定着袋ｆｌｉ２？に
送給する送給ベルト、２７ａは定着装置２７の温度を検
出する温度センサである。FIG. 2 is an explanatory diagram of the structure of the electrophotographic copying machine shown in FIG. The image light of the original document is transferred to the imaging lens 14.
15 to 17 are mirrors that guide the image light from the imaging lens 14 to the photoreceptor drum 18. 19 is a main charger that uniformly charges the photoreceptor drum 18, and 20 is a mirror that guides the image light from the imaging lens 14 onto the photoreceptor tram 18. 21 is a paper feed roller that feeds out the paper 6), 22 is a feed roller that feeds the fed paper, and 23 is a photosensitive roller. A registration roller 24 that feeds the paper in synchronization with the rotation of the body drum 18:
The photoreceptor drum 18 (7) is a transfer charter that transfers the L-toner image onto the paper, 25 is a separation charger that transfers the transferred paper to the photoreceptor drum 18 for 4 minutes, and 26 is an f-coat which is separated from the photoreceptor drum 18. Place the paper in a fixing bag fli2? A feeding belt 27a that feeds the fixing device 27 is a temperature sensor that detects the temperature of the fixing device 27.
第３図は給紙カセット５を側面から見ｌ二構成説明図て
あり、第４図は給紙カセット５を上面９・ら見た構成説
明図である。これらの図において、２８はモータ、２９
ｊ、！：モータ２８の出力軸に紡出されｆニラオーふギ
ア、３３はノヤフト３４に支持されｉ−、扇型ギア、３
０〜３２はつす一ムギア２９の回転力を扇型１ギア３３
に伝達するギアである。３５はノヤフＩ・３４に固定さ
ｆ″、扇型ギア３３の回動によって昇降板３６を昇降さ
せ゛るアーム、３７：よノヤフト３４に固定ｇ ｆ７
ｊ（、作動片、３８は作動片３７によって作動４゛るホ
トイノタラブタ、３９（よ昇降板３６上の用紙の有無を
検出するアクチュエータ、４０は昇降板３６上に設けら
れた用紙用ガイド板、３６ａは昇降板３６を昇降可能に
支持するヒンジである。２１ａは一端に給紙フロ２１を
備えて軸２１ｃに回動可能に支持されたアーム、２１ｂ
はアーム２１ａの他端を検出するホトインタラプタであ
る。FIG. 3 is a diagram illustrating the structure of the paper feed cassette 5 seen from the side, and FIG. 4 is a diagram illustrating the structure of the paper feed cassette 5 seen from the top surface 9. In these figures, 28 is a motor, 29
j,! ：The output shaft of the motor 28 has an f-shaped gear, 33 is supported by a noyaft 34, and i-, a fan-shaped gear, 3
0 to 32 transfers the rotational force of the one-piece gear 29 to the fan-shaped first gear 33
It is a gear that transmits information to the 35 is fixed to the Yaft I 34 f'', an arm that raises and lowers the elevating plate 36 by rotation of the fan-shaped gear 33; 37: fixed to the Yaft 34 g f7
38 is an actuator operated by the actuating piece 37; 39 is an actuator for detecting the presence or absence of paper on the elevating plate 36; 40 is a paper guide plate provided on the elevating plate 36; 36a; 21a is a hinge that supports the elevating plate 36 so that it can be raised and lowered. 21a is an arm that has the paper feed flow 21 at one end and is rotatably supported by a shaft 21c;
is a photointerrupter that detects the other end of the arm 21a.
第５図は第１図に示す実施例の主要電気回路図てめり、
４０は商用電源＾ｃｉｏｏｖに接続されるプラグ、４１
は電子写真複写機の主要負荷（メインモータや定着装置
用ヒータｆｉど）、４２はプラグ４０かみ入力される電
源を負荷４１に接続するリレ、４３はプラグ４０か与の
電源を受けてＤＣ２４ｖ及びＤ Ｃ，５Ｖ １７）電圧
を出力する定電圧回路、４４は定電圧回路４３の出力を
受けて作動する制御回路、４５はＣＰＵ、ＲＯＭ、ＲＡ
Ｍ及びｌ／Ｏポートからなるマイクロコンピュータ、４
６は電源スィッチ８がオン・オフされるとリレー４２を
オン・オフさせると共に、その動作に対応する信号をマ
イクロコンピュータ４５に出力するリレー駆動回路、３
ａは操作パネル３に設けらｔ７各種複写条件や複写開始
指令などを入力するキーボード、３ｂは操作パネル３に
設けられ各種複写条件を表示する表示器、２８ａはモー
タ２８を正転及び逆転させるドライバー、５ａは本体ｌ
の内部に設けられ給紙カセット５が本体ｌに収納された
ときに出力するカセットスイッチである。マイクロコン
ピュータ４５は、リレー駆動回路４６、キーボード３、
ホトインタラプタ３８と２１ｂ、カセットスイッチ５ａ
、温度センサ２７ａおよびアクチュエータ３９からの出
力を受けて、表示器３ｂ、 ドライバー２８ａ、負荷
４１に出力するようになっている。このような構成にお
ける動作を第６図に示すフローチャートを用いて説明す
る。FIG. 5 is a main electrical circuit diagram of the embodiment shown in FIG.
40 is a plug connected to the commercial power supply ^cioov, 41
42 is a relay that connects the power input from the plug 40 to the load 41, and 43 is the main load of the electrophotographic copying machine (main motor, heater FI for the fixing device, etc.); DC, 5V 17) Constant voltage circuit that outputs voltage, 44 is a control circuit that operates upon receiving the output of constant voltage circuit 43, 45 is CPU, ROM, RA
Microcomputer consisting of M and I/O ports, 4
6 is a relay drive circuit 3 that turns on and off the relay 42 when the power switch 8 is turned on and off, and outputs a signal corresponding to the operation to the microcomputer 45;
3b is a display provided on the operation panel 3 to display various copying conditions; 28a is a driver that rotates the motor 28 in forward and reverse directions; , 5a is the main body l
This is a cassette switch that is provided inside the main body l and outputs an output when the paper feed cassette 5 is stored in the main body l. The microcomputer 45 includes a relay drive circuit 46, a keyboard 3,
Photo interrupter 38 and 21b, cassette switch 5a
, temperature sensor 27a, and actuator 39, and outputs them to display 3b, driver 28a, and load 41. The operation in such a configuration will be explained using the flowchart shown in FIG.
まず、ステップ１０１において電源スィッチ８がオンさ
れると、リレー４２がオンしてコンセント４０か与の電
源か負荷４１に供給される、そ乙と同時にリレー駆動回
路４６かｓマイクロコンピュータ４５に電源オン信号が
入力さ乙るので、給紙カセット５が本体１に収納さ乙、
用紙かカセット５に充填されていると、マイクロコンピ
ュータ４５：まドライバー２８ａに出力してモータ２８
を正転させる。それによってアーム３５が回動して昇降
板３６を持ち上げる。First, when the power switch 8 is turned on in step 101, the relay 42 is turned on and power is supplied to the outlet 40, the given power, or the load 41. At the same time, the power is turned on to the relay drive circuit 46 or the microcomputer 45. Since the signal is input, the paper cassette 5 is stored in the main body 1.
When paper is filled in the cassette 5, the microcomputer 45 outputs the output to the driver 28a and outputs the output to the motor 28.
Rotate forward. This causes the arm 35 to rotate and lift the elevating plate 36.
第７図に示す状態に昇降板３６か持ち上げられ、アーム
２１ａが水平状態にはると、ホトインタラプタ２１ｂが
出力する。ホトインタラプタ２１ｂの出力を受けｆこマ
イクロコンピュータ４５はモータ２８を停止させる。そ
れによって、昇降板３６上の用紙６は給紙可能位置に設
定される（ステ・ノブ１０３）。When the elevating plate 36 is lifted to the state shown in FIG. 7 and the arm 21a is placed in a horizontal state, the photointerrupter 21b outputs an output. Upon receiving the output from the photointerrupter 21b, the microcomputer 45 stops the motor 28. As a result, the paper 6 on the elevating plate 36 is set to the paper feedable position (steer knob 103).
次に、定着装置２７の定着温度が所定温度に達すると、
マイクロコンピュータ４５は表示器３ｂに「コピー可能
」を表示させる（ステップ１０５）。Next, when the fixing temperature of the fixing device 27 reaches a predetermined temperature,
The microcomputer 45 causes the display 3b to display "copy possible" (step 105).
そして、一連のコピー動作か行ね乙、作業の完了後に電
源スィッチ８がＯＦＦさ乙ると（ステップ＋０６）、リ
レー駆動回路４６によってリレー４２がオフさ乙、コン
セント４０から負荷４１に供給される電源が遮断さ乙る
。そ乙と同時に電源スィッチ８がオフされたことがマイ
クロコンピュータ４５に入力されるので、マイクロコノ
ピユータ４５はドライバー２８ａに出力してモータ２８
を逆転させる。それによってアーム３５か回動して、昇
降板３６を第３図に示す状態に下降させ、アーム３５が
水平状態になると作動片３７がホトインタラプタ３８を
作動させるので、マイクロコノピユータ４５はモータ２
８を停止させる（ステップ１０７）。After performing a series of copying operations, when the power switch 8 is turned off (step +06), the relay 42 is turned off by the relay drive circuit 46, and the power is supplied from the outlet 40 to the load 41. The power is cut off. At the same time, the fact that the power switch 8 has been turned off is input to the microcomputer 45, so the microcomputer 45 outputs an output to the driver 28a to turn off the motor 28.
Reverse. As a result, the arm 35 rotates and the elevating plate 36 is lowered to the state shown in FIG. 2
8 is stopped (step 107).
このようにして電源８がオフされｆ二後に、昇降板３６
が下降するのて、カセット５を本体１からいっても引き
出すことができ、用紙６の交換・補充や用紙サイズの確
認を容易に行うことができる。In this way, the power supply 8 is turned off, and after f2, the elevating plate 36
As the cassette 5 is lowered, the cassette 5 can be pulled out from the main body 1, making it easy to replace and replenish paper 6 and check the paper size.
（ト）発明の効果
この発明によれば、画像形成装置の電源スィッチをオフ
した時に、給紙カセットが下降するので、電源オフ後に
用紙の補充やサイズの確認を容易に行うことができる。(g) Effects of the Invention According to the present invention, the paper feed cassette is lowered when the power switch of the image forming apparatus is turned off, so that it is easy to replenish paper and check the size of the paper after the power is turned off.
第１図はこの発明の一実施例を示す斜視図、第２図は第
１図に示す実施例の構成説明図、第３図は第２図の要部
を側面から見に構成説明図、第４図は第２図の要部を上
面か４見た構成説明図、第５図は第１図に示す実施例の
電気回路図、第６図は第１図に示す実施例の動作を示す
フローチャート、第７図は第３図に示す給紙カセットの
動作を説明する説明図である。
ａ ゛
５
４０・・
４２・
４４・・・
給紙カセット、
電源スィッチ、
・・アーム、３６
プラグ、４１
リレー、４３
制御回路。
６ ・・・用紙、
２８・・ ・・モータ、
・・・・昇降板、
・・負荷、
・・定電圧回路、
第
１
■
１壓）FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is an explanatory diagram of the configuration of the embodiment shown in FIG. 1, and FIG. 3 is an explanatory diagram of the configuration of the main part of FIG. Fig. 4 is a configuration explanatory diagram of the main parts of Fig. 2 viewed from above, Fig. 5 is an electric circuit diagram of the embodiment shown in Fig. 1, and Fig. 6 shows the operation of the embodiment shown in Fig. 1. The flowchart shown in FIG. 7 is an explanatory diagram for explaining the operation of the paper feed cassette shown in FIG. a゛5 40... 42... 44... Paper cassette, power switch, ... arm, 36 plug, 41 relay, 43 control circuit. 6...Paper, 28...Motor,...Elevating plate,...Load,...Constant voltage circuit, Part 1 ■ 1 bottle)
Claims (1)
に給紙カセットを上昇させるカセット昇降装置を備えた
画像形成装置において、 入力電源から画像形成用負荷への電源供給路を開閉する
開閉素子と、前記入力電源を直接受けて作動する制御装
置とを備え、かつ、前記制御装置が、前記開閉素子に開
閉動作を指令する指令手段と、前記開閉素子が閉から開
状態に切り替わった時に給紙カセットを下降させ、開か
ら閉状態に切り替わった時に給紙カセットを上昇させる
カセット昇降装置用駆動手段とを有することを特徴とす
る画像形成装置。[Claims] 1. In an image forming apparatus equipped with a cassette elevating device that lowers a paper cassette when replenishing paper and raises the paper cassette during image formation, a power supply path from an input power source to an image forming load. a switching element that opens and closes; a control device that operates by directly receiving the input power; the control device includes command means that commands the switching element to open and close; An image forming apparatus comprising: a driving means for a cassette elevating device that lowers the paper feeding cassette when the state changes from an open state to a closed state, and raises the paper feeding cassette when the state changes from an open state to a closed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2070294A JPH03272922A (en) | 1990-03-20 | 1990-03-20 | Image forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2070294A JPH03272922A (en) | 1990-03-20 | 1990-03-20 | Image forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03272922A true JPH03272922A (en) | 1991-12-04 |
Family
ID=13427304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2070294A Pending JPH03272922A (en) | 1990-03-20 | 1990-03-20 | Image forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03272922A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100485794B1 (en) * | 2003-01-18 | 2005-04-28 | 삼성전자주식회사 | Paper feeding apparatus of image forming device |
| US7062213B2 (en) * | 2003-07-02 | 2006-06-13 | Sharp Kabushiki Kaisha | Sheet feeder, image reading apparatus, and image forming apparatus |
| JP2008303041A (en) * | 2007-06-08 | 2008-12-18 | Canon Electronics Inc | Sheet-like member conveying device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61127528A (en) * | 1984-11-27 | 1986-06-14 | Ricoh Co Ltd | Paper feeder |
-
1990
- 1990-03-20 JP JP2070294A patent/JPH03272922A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61127528A (en) * | 1984-11-27 | 1986-06-14 | Ricoh Co Ltd | Paper feeder |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100485794B1 (en) * | 2003-01-18 | 2005-04-28 | 삼성전자주식회사 | Paper feeding apparatus of image forming device |
| US7100915B2 (en) | 2003-01-18 | 2006-09-05 | Samsung Electronics Co., Ltd. | Paper feeding apparatus of image forming device |
| US7062213B2 (en) * | 2003-07-02 | 2006-06-13 | Sharp Kabushiki Kaisha | Sheet feeder, image reading apparatus, and image forming apparatus |
| JP2008303041A (en) * | 2007-06-08 | 2008-12-18 | Canon Electronics Inc | Sheet-like member conveying device |
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