JPH0572911A - Electrophotographic recorder - Google Patents
Electrophotographic recorderInfo
- Publication number
- JPH0572911A JPH0572911A JP3232738A JP23273891A JPH0572911A JP H0572911 A JPH0572911 A JP H0572911A JP 3232738 A JP3232738 A JP 3232738A JP 23273891 A JP23273891 A JP 23273891A JP H0572911 A JPH0572911 A JP H0572911A
- Authority
- JP
- Japan
- Prior art keywords
- printing
- recording medium
- plain paper
- executed
- voltage power
- 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
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 11
- 239000000057 synthetic resin Substances 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims description 3
- 108091008695 photoreceptors Proteins 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は電子写真記録装置に関
し、特に転写帯電器の制御方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic recording apparatus, and more particularly to a method for controlling a transfer charger.
【０００２】[0002]
【従来の技術】従来の電子写真記録装置は、記録媒体の
種類にかかわらず、トナーを記録媒体に転写させるため
の転写帯電器に与える電流が一定であった。2. Description of the Related Art In a conventional electrophotographic recording apparatus, the current supplied to a transfer charger for transferring toner to a recording medium is constant regardless of the type of the recording medium.
【０００３】[0003]
【発明が解決しようとする課題】この従来の電子写真記
録装置では、記録媒体の種類にかかわらず転写帯電器に
与える電流が一定であるため、合成樹脂シート、例えば
オーバー・ヘッド・プロジェクター用のＯＨＰシートの
ような絶縁抵抗が高い記録媒体に印刷する場合には、記
録媒体に与える電荷が十分でなく、トナーが記録媒体に
十分に転写されないという問題点があった。またＯＨＰ
シートに印刷するために転写帯電器に与える電流を高く
設定すると、普通紙に印刷した場合にトナーが飛散しや
すいという問題点があった。In this conventional electrophotographic recording apparatus, since the current supplied to the transfer charger is constant regardless of the type of recording medium, a synthetic resin sheet such as an OHP for an over head projector is used. When printing on a recording medium having a high insulation resistance such as a sheet, there is a problem that the electric charge applied to the recording medium is insufficient and the toner is not sufficiently transferred to the recording medium. Also OHP
If the current applied to the transfer charger for printing on a sheet is set high, there is a problem that toner tends to scatter when printing on plain paper.
【０００４】[0004]
【課題を解決するための手段】本発明の電子写真記録装
置は、記録媒体が普通紙であるかこの普通紙より絶縁抵
抗の高い合成樹脂シートであるかを識別する媒体識別手
段と、トナーを前記記録媒体に転写させる転写帯電器
と、前記転写帯電器に供給する電流を可変できる高圧電
源と、前記媒体識別手段と接続され前記高圧電源を制御
し前記記録媒体への印刷を制御する制御手段とを有し、
前記制御手段が、印刷される記録媒体が前記普通紙であ
るか前記合成樹脂シートであるかによって前記高圧電源
から前記転写帯電器へ供給する電流量を変える構成であ
る。The electrophotographic recording apparatus of the present invention includes a medium identifying means for identifying whether the recording medium is plain paper or a synthetic resin sheet having a higher insulation resistance than the plain paper, and a toner. A transfer charging device for transferring to the recording medium, a high-voltage power supply capable of varying the current supplied to the transfer charging device, and a control means connected to the medium identifying means for controlling the high-voltage power supply and controlling printing on the recording medium. Has and
The control means changes the amount of current supplied from the high-voltage power supply to the transfer charger depending on whether the recording medium to be printed is the plain paper or the synthetic resin sheet.
【０００５】[0005]
【実施例】本発明について図面を参照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings.
【０００６】図１は本発明の一実施例の模式的断面図で
ある。感光体１は表面に静電潜像を形成するための感光
層を有する。帯電器２は感光体１を一様に帯電させる。
露光源３は帯電した感光体１に静電潜像を形成する。現
像器４は露光源３によって形成された静電潜像をトナー
で現像する。クリーナ５は記録媒体６に転写されずに感
光体１上に残ったトナーを回収する。レジストレーショ
ンローラ７は、記録媒体６を搬送し、記録媒体６上に印
刷する領域を制御する。発光素子８、受光素子９a ，９
b はレジストレーションローラ７の上流側に位置する。
転写帯電器１０は感光体１上のトナーを記録媒体７に転
写する。高圧電源１１はトナーを記録媒体６に転写させ
るのに必要な電流を転写帯電器１０に与える。制御部１
２は、受光素子９a ，９b ，高圧電源１１等と接続さ
れ、記録媒体６への印刷を制御する。FIG. 1 is a schematic sectional view of an embodiment of the present invention. The photoconductor 1 has a photosensitive layer on the surface for forming an electrostatic latent image. The charger 2 uniformly charges the photoconductor 1.
The exposure source 3 forms an electrostatic latent image on the charged photoreceptor 1. The developing device 4 develops the electrostatic latent image formed by the exposure source 3 with toner. The cleaner 5 collects the toner remaining on the photoconductor 1 without being transferred to the recording medium 6. The registration roller 7 conveys the recording medium 6 and controls an area to be printed on the recording medium 6. Light emitting element 8, light receiving element 9 a , 9
b is located upstream of the registration roller 7.
The transfer charger 10 transfers the toner on the photoconductor 1 to the recording medium 7. The high-voltage power supply 11 supplies the transfer charger 10 with a current necessary for transferring the toner onto the recording medium 6. Control unit 1
Reference numeral 2 is connected to the light receiving elements 9 a and 9 b , the high voltage power source 11 and the like, and controls printing on the recording medium 6.
【０００７】次に動作を説明する。Next, the operation will be described.
【０００８】制御部１２は、露光源３が感光体１に静電
潜像を形成し始めるタイミングと、レジストレーション
ローラ７が記録媒体６を搬送し始めるタイミングとを調
節することにより、記録媒体６上に印刷する領域を制御
する。発光素子８及び受光素子９a は、記録媒体６が所
定の時間内にレジストレーションローラ７に到達したか
どうかを検出するためのものであり、制御部１２は、記
録媒体６が所定の時間内にレジストレーションローラ７
に到達しない場合には、印刷を中止する。The control unit 12 adjusts the timing at which the exposure source 3 starts to form an electrostatic latent image on the photoconductor 1 and the timing at which the registration roller 7 starts to convey the recording medium 6 to adjust the recording medium 6 Controls the area printed on top. The light emitting element 8 and the light receiving element 9 a are for detecting whether the recording medium 6 has reached the registration roller 7 within a predetermined time, and the control unit 12 controls the recording medium 6 within a predetermined time. Registration roller 7
If it does not reach, the printing is stopped.
【０００９】普通紙に印刷する場合、制御部１２は、普
通紙が光を透過せず受光素子９b が発光素子８の光を検
出できないことから、普通紙に印刷することを識別し、
高圧電源１１が転写帯電器１０に供給する電流を、普通
紙に印刷するのに必要な電流値Ｉ1 に設定して、印刷を
行う。[0009] When printing on plain paper, the control unit 12, plain paper from the light receiving element 9 b does not transmit light can not detect the light emitting element 8, to identify to print on plain paper,
Printing is performed by setting the current supplied from the high-voltage power supply 11 to the transfer charger 10 to the current value I 1 required for printing on plain paper.
【００１０】また、合成樹脂シートであるＯＨＰシート
に印刷する場合、制御部１２は、ＯＨＰシートが光を透
過し受光素子９b が発光素子８の光を検出することか
ら、ＯＨＰシートに印刷することを識別し、高圧電源１
１が転写帯電器１０に供給する電流を、ＯＨＰシートに
印刷するのに必要な電流Ｉ2に設定して、印刷を行う。
ここで、Ｉ1 ＜Ｉ2 である。Further, when printing on OHP sheet is a synthetic resin sheet, the control unit 12, since the OHP sheet detecting light receiving element 9 b is the light emitting element 8 is transmitted through the light, printing on OHP sheet Identify that, high voltage power supply 1
Printing is performed by setting the current I 1 supplied to the transfer charger 10 to the current I 2 required for printing on the OHP sheet.
Here, I 1 <I 2 .
【００１１】以上に説明した実施例では、普通紙とＯＨ
Ｐシート等の合成樹脂シートとを識別する識別手段とし
て発光素子，受光素子を用い、レジストレーションロー
ラの上流側に設置したが、実際に印刷を始める前に普通
紙と合成樹脂シートとが識別できれば、識別手段の種
類，場所は上述の実施例に特定されない。In the embodiment described above, plain paper and OH
A light emitting element and a light receiving element were used as an identification means for identifying a synthetic resin sheet such as a P sheet, and they were installed on the upstream side of the registration roller. However, if the plain paper and the synthetic resin sheet can be identified before actually printing. The type of identification means and the location are not specified in the above embodiment.
【００１２】[0012]
【発明の効果】以上説明したように本発明は、記録媒体
が普通紙の場合と、合成樹脂シートの場合とによって転
写帯電器に供給する電流量を変更するので、普通紙，合
成樹脂シートの双方において良好な印字結果が得られる
という効果がある。As described above, according to the present invention, the amount of current supplied to the transfer charger is changed depending on whether the recording medium is plain paper or synthetic resin sheet. There is an effect that good printing results can be obtained on both sides.
【図１】本発明の一実施例の模式的断面図である。FIG. 1 is a schematic sectional view of an embodiment of the present invention.
１ 感光体 ２ 帯電器 ３ 露光源 ４ 現像器 ５ クリーナ ６ 記録媒体 ７ レジストレーションローラ ８ 発光素子 ９a ，９b 受光素子 １０ 転写帯電器 １１ 高圧電源 １２ 制御部1 Photoreceptor 2 Charging Device 3 Exposure Source 4 Developing Device 5 Cleaner 6 Recording Medium 7 Registration Roller 8 Light Emitting Element 9 a , 9 b Light Sensing Element 10 Transfer Charger 11 High Voltage Power Supply 12 Control Section
Claims (1)
り絶縁抵抗の高い合成樹脂シートであるかを識別する媒
体識別手段と、トナーを前記記録媒体に転写させる転写
帯電器と、前記転写帯電器に供給する電流を可変できる
高圧電源と、前記媒体識別手段と接続され前記高圧電源
を制御し前記記録媒体への印刷を制御する制御手段とを
有し、前記制御手段が、印刷される記録媒体が前記普通
紙であるか前記合成樹脂シートであるかによって前記高
圧電源から前記転写帯電器へ供給する電流量を変えるこ
とを特徴とする電子写真記録装置。1. A medium identifying means for identifying whether the recording medium is plain paper or a synthetic resin sheet having a higher insulation resistance than the plain paper, a transfer charger for transferring toner to the recording medium, and the transfer. It has a high-voltage power supply capable of varying the current supplied to the charger, and a control means connected to the medium identification means for controlling the high-voltage power supply to control printing on the recording medium, and the control means prints. An electrophotographic recording apparatus, wherein the amount of current supplied from the high-voltage power supply to the transfer charger is changed depending on whether the recording medium is the plain paper or the synthetic resin sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3232738A JPH0572911A (en) | 1991-09-12 | 1991-09-12 | Electrophotographic recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3232738A JPH0572911A (en) | 1991-09-12 | 1991-09-12 | Electrophotographic recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0572911A true JPH0572911A (en) | 1993-03-26 |
Family
ID=16943997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3232738A Pending JPH0572911A (en) | 1991-09-12 | 1991-09-12 | Electrophotographic recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0572911A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5848321A (en) * | 1995-12-20 | 1998-12-08 | Samsung Electronics Co., Ltd. | Method for automatically controlling transfer voltage in printer using electrophotography system |
-
1991
- 1991-09-12 JP JP3232738A patent/JPH0572911A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5848321A (en) * | 1995-12-20 | 1998-12-08 | Samsung Electronics Co., Ltd. | Method for automatically controlling transfer voltage in printer using electrophotography system |
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