JPH0372977B2 - - Google Patents
Info
- Publication number
- JPH0372977B2 JPH0372977B2 JP54125883A JP12588379A JPH0372977B2 JP H0372977 B2 JPH0372977 B2 JP H0372977B2 JP 54125883 A JP54125883 A JP 54125883A JP 12588379 A JP12588379 A JP 12588379A JP H0372977 B2 JPH0372977 B2 JP H0372977B2
- Authority
- JP
- Japan
- Prior art keywords
- copying
- test mode
- specifying
- sequence
- copying machine
- 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.)
- Expired - Lifetime
Links
- 108091008695 photoreceptors Proteins 0.000 description 19
- 230000005856 abnormality Effects 0.000 description 6
- 210000000078 claw Anatomy 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Control Or Security For Electrophotography (AREA)
Description
「産業上の利用分野」
この発明は複写機の制御装置に関する。
「従来の技術」
マイクロコンピユータをシーケンス制御装置と
して使用した従来の複写機においては、複写紙の
搬送、感光体ドラムの回転、原稿の静電潜像の生
成、転写、現像を作動する種々の制御機器を自動
的にかつ継時的に駆動する、いわゆる一連の複写
動作は、マイクロコンピユータ内のプログラムに
よつて実行できるようになつている。
この種の制御装置において従来、特開昭54−
67643号公報に示されるように、通常の複写モー
ドに加えてテストモード（保守モード）を備えた
複写機が提案されている。即ち、上記複写機にお
いては、テストモードが指定されると、操作キー
によつて指定された複写機内の各構成部品をスタ
ート指令に基づき動作させ、この動作状態をサー
ビスマンが観察し機械の異常を発見するようにし
たものである。
「発明が解決すべき課題」
しかしながら、上記複写機においては複数の部
品が互いに関係し合う故障あるいは複写シーケン
スにおける各部品の作動タイミングの異常につい
ての診断は困難なものであつた。つまり、上記複
写機においては指定された１つの部品をスタート
指令に基づき単に動作させていただけであるの
で、例えば複写紙の搬送と感光体への像形成の同
期ズレ等の複数の部品間での異常及び動作タイミ
ングの異常の発見はサービスマンにとつて困難な
作業であつた。
そこで、本願発明は、サービスマンによる複写
機各部の複数部品間での異常及び動作タイミング
に関する異常の診断作業を指定した複数部品を複
写シーケンスに従つて動作させることにより、容
易に実施できるようにしたことを目的とする。
さらに、このような複写シーケンスに従つて行
うテストモードだけであれば、複写機の組立て途
中における機械各部の動作テストを行うことがで
きない等の問題点がある。従つて、本願発明は、
複写シーケンスに従つて行うテストモードに加え
て、指定した複数の部品を単独に動作させるテス
トモードも備え、これらのテストモードを切換選
択可能として操作上の便宜を計つた制御装置を提
供することを目的とする。
「課題を解決する手段」
上述の目的を達成するために、この発明の複写
機の制御装置は複写シーケンスに従つて、機内各
部の被制御機器を所定のタイミングで制御して複
写を実行する電子複写機において、
被制御機器の各々を指定するための機器指定手
段と、
第１のテストモードを指定する第１テストモー
ド指定手段と、
第２のテストモードを指定する第２テストモー
ド指定手段と、
第１のテストモードが指定された場合、機器指
定手段によつて指定された複数の被制御機器を複
写シーケンスに従つて、所定のタイミングで作動
させる第１制御手段と、
第２のテストモードが指定された場合、機器指
定手段によつて指定された複数の被制御機器を複
写シーケンスに関係なく同時に作動させる第２制
御手段と、
を備えたことを特徴とする。
実施例
以下にこの発明の一実施例を図面とともに説明
する。
第１図において、電子複写機１の中央には感光
体ドラム２がシヤフト３に固定された矢印ａ方向
に回転するようになつており、この感光体ドラム
２の外周には感光体４が形成されている。
上記感光体ドラム２の上方には、安定板の中心
にワイヤ電極５ａを設けた帯電用チヤージヤ５が
設けられて、プラス電荷を感光体４上に加える。
感光体ドラム２にはOFT（オプテイカルフアイ
バー管）６が近接配置され、原稿の像を感光体４
の面に形成する。
感光体ドラム２の図上左方に設けられトナー補
給用部材、現像剤拡散用ローラ７、現像剤攪はん
ローラ８を備えた現像機９のトナータンク１０に
格納されているトナーは、鉄粉などの強磁性より
なるキヤリアーとの摩擦によつてプラスに帯電さ
れる。このプラスに帯電されたトナーは磁石を内
蔵する弱磁性体のスリーブ１１の回転にともなつ
て、該スリーブ１１を介して感光体ドラム２の感
光体４の表面のプラスに帯電された部分とは反撥
し、OFTで露光された電荷のない部分に付着し
て静電潜像を可視化する。
一方、図上左方に設けられた芯筒１２に複写用
のシート１３がロール状に巻回されており、先端
１３ａは一対の給紙ローラ１４ａ，１４ｂに嵌入
され、給紙ローラ１４ａ，１４ｂが回転駆動され
ると、シート１３の先端は感光体ドラム２の周速
度と同一速度で矢印ｅ方向に搬送される。シート
１３の搬送路に沿つて搬送用ガイド板１５が設け
られており、この搬送用ガイド板１５と上記給紙
ローラ１４ａ，１４ｂとの間にはカツター１６が
配置されている。
感光体ドラム２の真下に軸方向に設けられた転
写チヤージヤ１７は、上記帯電用チヤージヤ５と
同様な構造を有しており、ワイヤ電極１７ａには
マイナスの高電圧が印加されている。このワイヤ
電極１７ａのマイナスの高電圧によつて、感光体
ドラム２に付着されたトナーが感光体ドラム２の
真下に搬送されてきたシート上に順次付着する。
このトナーが付着されたシートは、感光体ドラム
２の外周近傍に設けた分離爪１８が回動して感光
体ドラム２から剥離され、搬送ローラ１９ａ，１
９ｂによつて移動する搬送ベルト１９上に載置さ
れる。搬送ベルト１９の表面上には一様に吸気用
の孔（図示しない。）が設けられており、フアン
モータの吸引力が搬送ベルト１９の孔を介してシ
ートに作用し、シートを搬送ベルト１９表面に吸
着しながら矢印ｅ方向に搬送する。
定着用ローラ２０ａ，２０ｂは上記搬送ベルト
１９の図上右側に設けられており、定着用ローラ
２０ａ，２０ｂはそれぞれ金属芯を有し、表面は
シリコンゴム層で形成され、表面温度が内部に設
けたヒータH1，H2によつて所定温度に保たれる
ようになつている。そして、トナーが付着された
シートが定着用ローラ２０ａ，２０ｂを通過する
と、熱によりトナーがシートに融着する。このト
ナーが融着されたシートは排出ローラ２１ａ，２
１ｂにより装置１外部に排出されるとともに、排
出検出スイツチによつて検出される。
一方、感光体ドラム２の帯電電荷を除去する第
１イレーサランプ２１は分離爪１８の上側に設け
られ、この第１イレーサランプ２１の左部には、
除電用チヤージヤ２２が設けられている。
第２図はこの発明に係る制御装置の一例を示す
ブロツク回路図であり、電子複写機１内に設置さ
れたマイクロコンピユータ４０の入力インターフ
エイス４１には第１表に示すような単独動作モー
ドおよびシーケンスモード等を作動させるための
デイツプスイツチ（DIP：Dual Inline
Package）５１，５２，５３が接続されている。
"Industrial Application Field" This invention relates to a control device for a copying machine. ``Prior Art'' In conventional copying machines that use a microcomputer as a sequence control device, various controls are used to operate the conveyance of copy paper, the rotation of a photoreceptor drum, and the generation, transfer, and development of an electrostatic latent image on a document. A series of so-called copying operations that automatically and sequentially drive the equipment can be executed by a program in a microcomputer. Conventionally, in this type of control device,
As shown in Japanese Patent No. 67643, a copying machine has been proposed that has a test mode (maintenance mode) in addition to a normal copying mode. That is, in the copying machine described above, when the test mode is designated, each component within the copying machine designated by the operation key is operated based on a start command, and a service person observes this operating state to detect any abnormalities in the machine. It was designed to discover. "Problems to be Solved by the Invention" However, in the copying machine described above, it is difficult to diagnose failures in which a plurality of parts are related to each other or abnormalities in the operation timing of each part in a copying sequence. In other words, since the copying machine described above simply operates one specified component based on a start command, there may be problems between multiple components, such as a synchronization difference between copy paper conveyance and image formation on the photoreceptor. Detecting abnormalities and abnormalities in operation timing is a difficult task for service personnel. Therefore, the present invention enables a service person to easily diagnose abnormalities among multiple parts of each part of a copying machine and abnormalities related to operation timing by operating a plurality of designated parts according to a copying sequence. The purpose is to Further, if only the test mode is performed according to such a copying sequence, there are problems such as the inability to perform an operation test of each part of the copying machine during assembly. Therefore, the claimed invention:
It is an object of the present invention to provide a control device which is equipped with a test mode in which a plurality of specified parts are operated independently in addition to a test mode in which a plurality of designated parts are operated in accordance with a copying sequence, and which is capable of switching between these test modes for operational convenience. purpose. "Means for Solving the Problem" In order to achieve the above-mentioned object, the copying machine control device of the present invention is an electronic copying machine that controls controlled devices in various parts of the machine at predetermined timings to execute copying according to a copying sequence. In the copying machine, a device specifying means for specifying each of the controlled devices, a first test mode specifying means for specifying the first test mode, and a second test mode specifying means for specifying the second test mode. , a first control means for operating a plurality of controlled devices specified by the device specification means at a predetermined timing according to a copying sequence when the first test mode is specified; and a second test mode. The present invention is characterized by comprising: second control means for simultaneously operating a plurality of controlled devices designated by the device designation means regardless of the copying sequence when the device designation means is designated. Embodiment An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, a photoreceptor drum 2 is fixed to a shaft 3 at the center of an electronic copying machine 1 and rotates in the direction of arrow a, and a photoreceptor 4 is formed on the outer periphery of the photoreceptor drum 2. has been done. A charging charger 5 having a wire electrode 5a provided at the center of a stabilizer plate is provided above the photoreceptor drum 2 to apply a positive charge onto the photoreceptor 4. An OFT (optical fiber tube) 6 is placed close to the photoreceptor drum 2, and the image of the document is transferred to the photoreceptor 4.
Form on the surface. The toner stored in the toner tank 10 of the developing machine 9, which is provided on the left side of the photosensitive drum 2 in the figure and is equipped with a toner replenishing member, a developer spreading roller 7, and a developer stirring roller 8, is It becomes positively charged by friction with a ferromagnetic carrier such as powder. As the sleeve 11, which is a weakly magnetic material containing a magnet, rotates, this positively charged toner passes through the sleeve 11 to the positively charged portion of the surface of the photoreceptor 4 of the photoreceptor drum 2. It is repelled and adheres to the uncharged area exposed by OFT to visualize the electrostatic latent image. On the other hand, a copying sheet 13 is wound in a roll around a core cylinder 12 provided on the left side of the figure, and the leading end 13a is fitted into a pair of paper feed rollers 14a, 14b. When the sheet 13 is rotationally driven, the leading edge of the sheet 13 is conveyed in the direction of arrow e at the same speed as the circumferential speed of the photoreceptor drum 2. A conveyance guide plate 15 is provided along the conveyance path of the sheet 13, and a cutter 16 is disposed between the conveyance guide plate 15 and the paper feed rollers 14a, 14b. The transfer charger 17 provided in the axial direction directly below the photoreceptor drum 2 has a similar structure to the charging charger 5 described above, and a high negative voltage is applied to the wire electrode 17a. Due to this high negative voltage of the wire electrode 17a, the toner adhered to the photoreceptor drum 2 is sequentially adhered to the sheet conveyed directly below the photoreceptor drum 2.
The sheet to which this toner has been adhered is separated from the photoreceptor drum 2 by rotation of a separating claw 18 provided near the outer periphery of the photoreceptor drum 2, and the sheet is separated from the photoreceptor drum 2 by conveyance rollers 19a, 1.
It is placed on a conveyor belt 19 that moves by a belt 9b. Air intake holes (not shown) are uniformly provided on the surface of the conveyor belt 19, and the suction force of the fan motor acts on the sheet through the holes of the conveyor belt 19, causing the sheet to be drawn into the conveyor belt 19. It is conveyed in the direction of arrow e while being adsorbed to the surface. The fixing rollers 20a and 20b are provided on the right side of the conveyor belt 19 in the figure, and each of the fixing rollers 20a and 20b has a metal core, the surface is formed of a silicone rubber layer, and the surface temperature is set internally. The temperature is maintained at a predetermined temperature by heaters H 1 and H 2 . Then, when the sheet to which the toner is attached passes through the fixing rollers 20a and 20b, the toner is fused to the sheet by heat. The sheet to which this toner has been fused is discharged from rollers 21a and 2.
1b to the outside of the apparatus 1, and is detected by the discharge detection switch. On the other hand, a first eraser lamp 21 for removing the electrical charges on the photoreceptor drum 2 is provided above the separating claw 18, and on the left side of the first eraser lamp 21,
A charger 22 for static elimination is provided. FIG. 2 is a block circuit diagram showing an example of the control device according to the present invention, and the input interface 41 of the microcomputer 40 installed in the electronic copying machine 1 has the independent operation mode and the input interface 41 shown in Table 1. Dip switch (DIP: Dual Inline) for operating sequence mode, etc.
Package) 51, 52, and 53 are connected.
【表】【table】
【表】【table】
Claims (1)
機器を所定のタイミングで制御して複写を実行す
る電子複写機において、 被制御機器の各々を指定するための機器指定手
段と、 第１のテストモードを指定する第１テストモー
ド指定手段と、 第２のテストモードを指定する第２テストモー
ド指定手段と、 第１のテストモードが指定された場合、機器指
定手段によつて指定された複数の被制御機器を複
写シーケンスに従つて、所定のタイミングで作動
させる第１制御手段と、 第２のテストモードが指定された場合、機器指
定手段によつて指定された複数の被制御機器を複
写シーケンスに関係なく同時に作動させる第２制
御手段と、 を備えたことを特徴とする複写機。[Scope of Claims] 1. In an electronic copying machine that executes copying by controlling controlled devices in various parts of the machine at predetermined timings according to a copying sequence, there is provided a device specifying means for specifying each controlled device; , a first test mode specifying means for specifying the first test mode; a second test mode specifying means for specifying the second test mode; and when the first test mode is specified, the device specifying means; a first control means for operating a plurality of specified controlled devices at a predetermined timing according to a copying sequence; A copying machine comprising: second control means for simultaneously operating control devices regardless of the copying sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12588379A JPS5650338A (en) | 1979-09-29 | 1979-09-29 | Controller of electrophotographic copier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12588379A JPS5650338A (en) | 1979-09-29 | 1979-09-29 | Controller of electrophotographic copier |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61221205A Division JPS6296971A (en) | 1986-09-18 | 1986-09-18 | Abnormality display device for electronic copying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5650338A JPS5650338A (en) | 1981-05-07 |
| JPH0372977B2 true JPH0372977B2 (en) | 1991-11-20 |
Family
ID=14921275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12588379A Granted JPS5650338A (en) | 1979-09-29 | 1979-09-29 | Controller of electrophotographic copier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5650338A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6145234A (en) * | 1984-12-04 | 1986-03-05 | Minolta Camera Co Ltd | Focus detecting device of camera |
| JP2000221846A (en) | 1999-02-03 | 2000-08-11 | Fujitsu Ltd | Printer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5467439A (en) * | 1977-10-27 | 1979-05-30 | Ibm | Circulatory operating device |
| JPS5590963A (en) * | 1978-12-29 | 1980-07-10 | Canon Inc | Image former |
| JPS5590964A (en) * | 1978-12-29 | 1980-07-10 | Canon Inc | Image former |
-
1979
- 1979-09-29 JP JP12588379A patent/JPS5650338A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5467439A (en) * | 1977-10-27 | 1979-05-30 | Ibm | Circulatory operating device |
| JPS5590963A (en) * | 1978-12-29 | 1980-07-10 | Canon Inc | Image former |
| JPS5590964A (en) * | 1978-12-29 | 1980-07-10 | Canon Inc | Image former |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5650338A (en) | 1981-05-07 |
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