JPH0532747B2 - - Google Patents
Info
- Publication number
- JPH0532747B2 JPH0532747B2 JP59206600A JP20660084A JPH0532747B2 JP H0532747 B2 JPH0532747 B2 JP H0532747B2 JP 59206600 A JP59206600 A JP 59206600A JP 20660084 A JP20660084 A JP 20660084A JP H0532747 B2 JPH0532747 B2 JP H0532747B2
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- copying machine
- copy paper
- main body
- transport mechanism
- 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
- 230000007723 transport mechanism Effects 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/65—Apparatus which relate to the handling of copy material
- G03G15/6552—Means for discharging uncollated sheet copy material, e.g. discharging rollers, exit trays
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/80—Details relating to power supplies, circuits boards, electrical connections
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Paper Feeding For Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
- Controlling Sheets Or Webs (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は複写機の紙詰まり防止装置に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a paper jam prevention device for a copying machine.
（従来の技術）
従来の複写機に於いては、複写中に停電あるい
は誤つてコンセントが抜かれる等して外部電源か
らの電力供給が断絶されると、搬送機構の駆動が
停止し、複写紙が搬送系路上に残留する為、該外
部電源からの電力供給が再開されても、紙詰まり
検知手段によつて紙詰まりが検知されて、搬送機
構の動作が停止してしまい、紙を取り除く等の処
理を行わない限り、複写機内の各装置が暖機状態
あるいは複写可能状態にならなかつた。前記した
搬送系路上に残留する複写紙に対処する方法とし
て、実開昭54−125649号公報等の明細書に開示さ
れる如く、複写機本体の電源オン時に、搬送機構
を一定時間駆動させ、搬送系路上に残留する複写
紙を排出するといつた構成の複写装置が提案され
ている。(Prior Art) In conventional copying machines, if the power supply from an external power source is cut off during copying due to a power outage or accidental unplugging, the drive of the transport mechanism is stopped and the copy paper is remains on the conveyance system, and even if the power supply from the external power supply is resumed, the paper jam detection means will detect the paper jam and the conveyance mechanism will stop operating, making it difficult to remove the paper, etc. Unless this process was performed, each device within the copier would not warm up or become ready for copying. As a method for dealing with copy paper remaining on the conveyance system, as disclosed in specifications such as Japanese Utility Model Application Publication No. 54-125649, the conveyance mechanism is driven for a certain period of time when the power of the copying machine is turned on. A copying apparatus has been proposed that is configured to eject copy paper remaining on a conveyance system.
（発明が解決しようとする問題点）
上記前者の様な従来の複写機では、紙詰まりの
処理が煩雑で、手間と時間を要するという問題点
があつた。また、後者の複写機にあつては、外部
電源からの電力供給が断絶されてから、次に供給
が再開するまでに長時間経過すると、その間複写
紙が機内に残留している為、紙詰まり検出スイツ
チを変形させる等の問題があると共に、機内の比
較的高温な部分（例えば定着部）に残留した場合
は、複写紙が発火する等の恐れがあり、安全上の
問題点もあつた。(Problems to be Solved by the Invention) Conventional copying machines such as the former have a problem in that handling paper jams is complicated and requires time and effort. In addition, in the case of the latter copier, if a long period of time elapses after the power supply from the external power source is cut off until the power supply is resumed next time, copy paper may remain in the machine during that time, resulting in paper jams. In addition to causing problems such as deforming the detection switch, there was also a risk of the copy paper catching fire if it remained in relatively high-temperature parts of the machine (for example, the fixing section), resulting in safety problems.
（問題点を解決するための手段）
本発明は、上記問題を解決するためになされた
もので、第１の本発明は、複写機本体内に非常時
用のバツクアツプ電源を設け複写機の各装置が動
作中に何らかの原因で外部電源からの給電が断絶
しても、すぐさまバツクアツプ電源から給電を行
い、少なくとも搬送機構を所定時間駆動させるこ
とにより、搬送機構内に存在する複写紙を機外へ
排出するようにしたものである。第２の本発明
は、外部電源からの給電が断絶した際、搬送機構
内に複写紙が存在するか否かを検出する手段によ
つて検出し、該検出手段からの複写課存在信号に
基づいて措定時間搬送機構が駆動するようにした
ものである。(Means for Solving the Problems) The present invention has been made to solve the above-mentioned problems, and the first invention is to provide an emergency backup power source in the main body of the copying machine to Even if the power supply from the external power supply is cut off for some reason while the device is operating, the backup power supply immediately supplies power and at least the transport mechanism is driven for a predetermined period of time, allowing the copy paper present in the transport mechanism to be removed from the machine. It is designed to be discharged. In the second aspect of the present invention, when the power supply from the external power source is cut off, the presence or absence of copy paper is detected in the transport mechanism by a means for detecting the presence or not, and based on the copy section presence signal from the detection means. The transport mechanism is driven for a predetermined period of time.
（作用）
通常の複写状態においては、搬送機構を駆動さ
せるための駆動モータ４は外部電源１から供給さ
れる電力で駆動するが、複写機の各装置が動作中
に外部電源１からの給電が断絶すると、すぐさま
内部電源２から電力が供給され、駆動モータ１が
所定時間駆動し、搬送機構内に存在する複写紙を
排出する。その際、搬送機構内の複写紙の存在を
検出する検出手段からの複写紙存在信号に基づい
て、所定時間駆動モータ４を駆動するようにした
ものである
（実施例）
本発明を具体的実施例を用いて説明する。第３
図は複写機本体２０の搬送機構を略図的に示すも
ので、複写紙の搬送は次の様に行われる。即ち、
給紙カセツト２２内の複写紙２１は、給紙ローラ
２３によつてガイド板２４，２５の間をレジスト
ローラ２６まで送られ、更に、図示しない光学系
による露光走査に関連してレジストローラ２６を
駆動し、ガイド板２７，２８間を経て転写部に送
られる。転写部に送られた複写紙２１には、感光
ドラム２９上に形成されたトナーの像が、転写チ
ヤージヤー３０によつて転写され、その後分離チ
ヤージヤー３１によつて複写紙２１が感光ドラム
２９から分離される。分離された複写紙２１は搬
送ベルト３２で定着部３３まで搬送され、定着部
３３で熱定着された後、排出ローラ３４によつて
排出トレイ３５上に排出される。(Function) In a normal copying state, the drive motor 4 for driving the transport mechanism is driven by power supplied from the external power supply 1, but when each device of the copying machine is in operation, power is not supplied from the external power supply 1. When the power is cut off, power is immediately supplied from the internal power source 2, and the drive motor 1 is driven for a predetermined period of time to eject the copy paper present in the transport mechanism. At this time, the drive motor 4 is driven for a predetermined period of time based on a copy paper presence signal from a detection means that detects the presence of copy paper in the transport mechanism (Example) A concrete implementation of the present invention Let's explain using an example. Third
The figure schematically shows the conveyance mechanism of the copying machine main body 20, and copy paper is conveyed as follows. That is,
The copy paper 21 in the paper feed cassette 22 is fed by a paper feed roller 23 between guide plates 24 and 25 to a registration roller 26, and is further fed through the registration roller 26 in connection with exposure scanning by an optical system (not shown). The image is driven and sent to the transfer section through the guide plates 27 and 28. The toner image formed on the photosensitive drum 29 is transferred to the copy paper 21 sent to the transfer section by the transfer charger 30, and then the copy paper 21 is separated from the photoconductor drum 29 by the separation charger 31. be done. The separated copy paper 21 is conveyed by a conveyor belt 32 to a fixing section 33 , where it is thermally fixed, and then discharged onto a discharge tray 35 by a discharge roller 34 .
上述した複写機の搬送機構を制御するための回
路を示す第１図に於いて、外部電源１から供給さ
れる電力と、蓄電池等の内部電源２から供給され
る電力は、制御回路３に入力される。制御回路３
からの出力は、搬送系駆動モータ４に入力されて
おり、モータ４駆動用の電力は制御回路３を介し
て供給される。制御回路３は、図示していない
が、従来の周知の回路と同様に、正常状態あるい
は紙詰まり等の情報を検知し該情報によつて複写
機の各装置の動作を制御する機構と、該情報を表
示する機構に加えて、外部電源１及び内部電源２
の電流・電圧をモータ４の駆動に適するように変
換する機能と、装置の情報を検知することによ
り、モータ４駆動用の電力を外部電源１から供給
するか、内部電源２から供給するか、あるいは電
力供給を停止するかを制御する機能を有してい
る。また、内部電源２が蓄電池である場合、蓄電
池の電圧が放電あるいは消費等が原因で低下して
いると、外部電源１から供給される電力の一部を
蓄電池の充電に供給することができる機能を有す
るものとする。 In FIG. 1 showing a circuit for controlling the transport mechanism of the copying machine described above, power supplied from an external power source 1 and power supplied from an internal power source 2 such as a storage battery are input to a control circuit 3. be done. Control circuit 3
The output from the transport system drive motor 4 is inputted to the transport system drive motor 4, and electric power for driving the motor 4 is supplied via the control circuit 3. Although not shown, the control circuit 3 includes a mechanism for detecting information such as a normal state or a paper jam and controlling the operation of each device of the copying machine based on the information, as well as a conventional well-known circuit. In addition to the mechanism for displaying information, external power supply 1 and internal power supply 2
By detecting device information and the function of converting current and voltage to be suitable for driving the motor 4, it is possible to determine whether power for driving the motor 4 is supplied from the external power supply 1 or from the internal power supply 2. Alternatively, it has a function to control whether to stop power supply. In addition, when the internal power source 2 is a storage battery, if the voltage of the storage battery decreases due to discharge or consumption, a part of the power supplied from the external power source 1 can be supplied to charge the storage battery. shall have the following.
上記制御回路３の動作を、第２図示のフローチ
ヤートに基づいて詳説すると、Stepの通常複
写状態でモータ４の駆動の電力が外部電源１から
供給される。Stepに於いて、外部電源１から
の給電が継続している間は、通常複写状態を繰り
返すが、給電が断絶した場合Stepに移り、複
写機本体内の搬送機構内に複写紙が存在するか否
か（紙詰まりか否か）の判断を行う。該搬送機構
内に複写紙が存在しない場合は、Stepに移り、
モータ４への電力供給を停止するが、複写紙が存
在する場合はStepに移つて内部電源２から電
力を供給してモータ４を駆動させる。Stepで
は、内部電源２にてモータ４駆動中に紙詰まりが
発生すればStepに移つてモータ４が停止し、
紙詰まりが発生していない場合はStepに移る。
Stepでは、内部電源２からの電力供給が所定
時間を超えていないかどうかを判断し超えていな
ければStepに戻つて動作を繰り返し、超えた
場合はStepに移つて電力供給を停止する。こ
の時、該所定時間とは、少なくとも、最大サイズ
の複写紙がレジストローラ２６ら搬出ローラ３４
まで搬送され、排出トレイ３５上に排出されるま
でに要する時間である。 The operation of the control circuit 3 will be explained in detail based on the flowchart shown in the second figure.Electric power for driving the motor 4 is supplied from the external power supply 1 in the normal copying state of Step. In Step, the normal copying state is repeated as long as the power supply from the external power supply 1 continues, but if the power supply is interrupted, the process moves to Step and the state is checked to see if there is copy paper in the transport mechanism inside the copying machine main body. It is determined whether there is a paper jam or not. If there is no copy paper in the transport mechanism, move to Step.
The power supply to the motor 4 is stopped, but if there is copy paper, the process moves to Step and power is supplied from the internal power supply 2 to drive the motor 4. In Step, if a paper jam occurs while the motor 4 is being driven by the internal power supply 2, the process moves to Step and the motor 4 is stopped.
If no paper jam occurs, move to Step.
In Step, it is determined whether or not the power supply from the internal power supply 2 has exceeded a predetermined time. If it has not exceeded the predetermined time, the process returns to Step and repeats the operation. If it has exceeded the predetermined time, the process moves to Step and stops the power supply. At this time, the predetermined period of time means that at least the maximum size copy paper is transferred from the registration roller 26 to the carry-out roller 34.
This is the time required for the paper to be conveyed until it is discharged onto the discharge tray 35.
尚、前記実施例では、内部電源２で搬送機構を
駆動させることを説明したが、搬送機構のみなら
ず、ソレノイド等の動作や表示部の表示等に内部
電源２を使用することも可能である。 In the above embodiment, it has been explained that the transport mechanism is driven by the internal power supply 2, but it is also possible to use the internal power supply 2 not only for the transport mechanism but also for operating a solenoid or the like, displaying a display, etc. .
（発明の効果）
本発明は、上記詳述したように、複写中に何ら
かの原因で外部電源からの給電が断絶しても、搬
送機構内に存在する複写紙が複写機外に排出され
て、通電が再開されればすぐに暖機あるいは複写
可能な状態となる上、複写紙が定着等の高温部に
残留して発火する等の恐れがなくなる為、安全上
も非常にすぐれた効果がある。(Effects of the Invention) As detailed above, the present invention provides that even if the power supply from the external power supply is cut off for some reason during copying, the copy paper present in the transport mechanism is ejected to the outside of the copying machine. As soon as the power is restored, the machine will warm up or be ready for copying, and there will be no risk of copying paper remaining in high-temperature areas such as the fusing unit and causing a fire, which is extremely effective in terms of safety. .
第１図は、本発明の電気的構成を示す概略図、
第２図は実施例の制御動作を示すフローチヤー
ト、第３図は複写機本体の搬送機構の概略図であ
る。
１……外部電源、２…内部電源、３……制御回
路、４……駆動モータ、２０……複写機本体。
FIG. 1 is a schematic diagram showing the electrical configuration of the present invention,
FIG. 2 is a flowchart showing the control operation of the embodiment, and FIG. 3 is a schematic diagram of the conveyance mechanism of the main body of the copying machine. DESCRIPTION OF SYMBOLS 1... External power supply, 2... Internal power supply, 3... Control circuit, 4... Drive motor, 20... Copying machine main body.
Claims (1)
と、複写機本体内部に設けた内部電源手段を有す
ると共に、上記複写機本体の少なくとも搬送機構
を駆動する際に、外部電源から給電するか内部電
源から給電するかを選択し、且つ切り替える為の
電源切替手段を有し、複写中に外部電源からの給
電が断絶すると同時に内部電源からの給電に切り
替え、所定時間搬送機構を駆動させるようにした
ことを特徴とする複写機における紙詰まり防止装
置。 ２ 複写機本体内へ給電するための外部電源手段
と、複写機本体内部に設けた内部電源手段を有す
ると共に、上記複写機本体の少なくとも搬送機構
を駆動する際に、外部電源から給電するか内部電
源から給電するかを選択し、且つ切り替えるため
の電源切替手段を有し、更に複写中に外部電源か
らの給電が断絶されると同時に内部電源からの給
電に切り替わつた際、前記搬送機構内に複写紙が
存在するか否かを検出するための検出手段と、該
検出手段からの複写紙存在信号に基づいて所定時
間搬送機構を駆動する駆動手段とを有することを
特徴とする複写機における紙詰まり防止装置。 ３ 前記検出手段からの複写紙存在信号に基づい
て、所定時間搬送機構を駆動すると共に、該所定
時間に生じた複写紙の紙詰まり信号によつて、搬
送機構の駆動を停止させるようにしたことを特徴
とする特許請求の範囲第２項記載の複写機におけ
る紙詰まり防止装置。[Scope of Claims] 1. An external power supply means for supplying power into the copying machine main body, and an internal power supply means provided inside the copying machine main body, and when driving at least the transport mechanism of the copying machine main body, an external power supply means is provided. It has a power supply switching means for selecting and switching between power supply from the power supply or internal power supply, and switches to power supply from the internal power supply at the same time as the power supply from the external power supply is interrupted during copying, and the transport mechanism for a predetermined period of time. A paper jam prevention device for a copying machine, characterized in that the device is configured to drive a paper jam prevention device. 2. It has an external power supply means for supplying power into the copying machine main body and an internal power supply means provided inside the copying machine main body, and when driving at least the transport mechanism of the copying machine main body, the power supply is supplied from the external power supply or from the internal power supply. It has a power supply switching means for selecting and switching the power supply from the power supply, and furthermore, when the power supply from the external power supply is cut off during copying and simultaneously switches to the power supply from the internal power supply, the power supply inside the transport mechanism A copying machine comprising: a detection means for detecting whether or not copy paper is present in the copy paper; and a drive means for driving a conveyance mechanism for a predetermined time based on a copy paper presence signal from the detection means. Paper jam prevention device. 3. The conveyance mechanism is driven for a predetermined period of time based on the copy paper presence signal from the detection means, and the drive of the conveyance mechanism is stopped in response to a copy paper jam signal that occurs during the predetermined time. A paper jam prevention device for a copying machine according to claim 2, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59206600A JPS6184661A (en) | 1984-10-02 | 1984-10-02 | Device for preventing paper jam in copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59206600A JPS6184661A (en) | 1984-10-02 | 1984-10-02 | Device for preventing paper jam in copying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6184661A JPS6184661A (en) | 1986-04-30 |
| JPH0532747B2 true JPH0532747B2 (en) | 1993-05-17 |
Family
ID=16526074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59206600A Granted JPS6184661A (en) | 1984-10-02 | 1984-10-02 | Device for preventing paper jam in copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6184661A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS643673A (en) * | 1987-06-26 | 1989-01-09 | Canon Kk | Picture recorder |
| JP4382310B2 (en) * | 2001-08-17 | 2009-12-09 | 株式会社リコー | Image forming apparatus and control method thereof |
| JP2005329621A (en) * | 2004-05-20 | 2005-12-02 | Tohoku Ricoh Co Ltd | Printer |
| JP4141408B2 (en) * | 2004-05-26 | 2008-08-27 | 京セラミタ株式会社 | Electronics |
| JP2006159888A (en) * | 2004-11-11 | 2006-06-22 | Tohoku Ricoh Co Ltd | Printer |
| JP2013140254A (en) * | 2012-01-05 | 2013-07-18 | Sharp Corp | Image forming apparatus |
-
1984
- 1984-10-02 JP JP59206600A patent/JPS6184661A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6184661A (en) | 1986-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2003162184A (en) | Image forming device | |
| JP3324911B2 (en) | Image forming apparatus and contact type transfer unit cleaning method | |
| US8755709B2 (en) | Image forming system and control apparatus utilizing dual image forming apparatuses | |
| US5081508A (en) | Paper-jam detecting device | |
| JPH0532747B2 (en) | ||
| US6202162B1 (en) | Data processing system having separable data-processing devices and a deactivable power-saving function | |
| JP3201994B2 (en) | Driving method of electrophotographic image forming apparatus | |
| JPH08320635A (en) | Image forming device | |
| JP2658239B2 (en) | Transport system speed controller | |
| US6556794B2 (en) | Carrying apparatus and image forming apparatus | |
| JP2546257B2 (en) | Transport system speed controller | |
| JPH0990820A (en) | Image forming device and option devices | |
| JP3155761B2 (en) | Image forming device | |
| JPS6050566A (en) | Electrophotographic copying device | |
| JPH0469669A (en) | Electrophotographic system recorder | |
| JP2587405B2 (en) | Copier | |
| JP3067004B2 (en) | Printer control device and control method thereof | |
| JPS6312535A (en) | Image creating device | |
| JP2024065303A (en) | Image forming apparatus | |
| JPH01201686A (en) | Image forming device | |
| JPS5811960A (en) | Controlling method for copying machine | |
| JPH08123144A (en) | Image forming device | |
| JPH04159949A (en) | Paper feed device for image forming device | |
| JPS63287979A (en) | Toner concentration controller for image forming device | |
| JP2012022202A (en) | Image forming apparatus |