JPH045187B2 - - Google Patents

Info

Publication number
JPH045187B2
JPH045187B2 JP58187350A JP18735083A JPH045187B2 JP H045187 B2 JPH045187 B2 JP H045187B2 JP 58187350 A JP58187350 A JP 58187350A JP 18735083 A JP18735083 A JP 18735083A JP H045187 B2 JPH045187 B2 JP H045187B2
Authority
JP
Japan
Prior art keywords
transfer paper
electrostatic latent
pattern
latent image
patterns
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
Application number
JP58187350A
Other languages
Japanese (ja)
Other versions
JPS6078464A (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP58187350A priority Critical patent/JPS6078464A/en
Publication of JPS6078464A publication Critical patent/JPS6078464A/en
Publication of JPH045187B2 publication Critical patent/JPH045187B2/ja
Granted legal-status Critical Current

Links

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
    • G03G15/6555—Handling of sheet copy material taking place in a specific part of the copy material feeding path
    • G03G15/6558—Feeding path after the copy sheet preparation and up to the transfer point, e.g. registering; Deskewing; Correct timing of sheet feeding to the transfer point
    • G03G15/6567—Feeding path after the copy sheet preparation and up to the transfer point, e.g. registering; Deskewing; Correct timing of sheet feeding to the transfer point for deskewing or aligning
    • 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
    • G03G15/6555—Handling of sheet copy material taking place in a specific part of the copy material feeding path
    • G03G15/6558—Feeding path after the copy sheet preparation and up to the transfer point, e.g. registering; Deskewing; Correct timing of sheet feeding to the transfer point
    • G03G15/6561—Feeding path after the copy sheet preparation and up to the transfer point, e.g. registering; Deskewing; Correct timing of sheet feeding to the transfer point for sheet registration
    • G03G15/6564—Feeding path after the copy sheet preparation and up to the transfer point, e.g. registering; Deskewing; Correct timing of sheet feeding to the transfer point for sheet registration with correct timing of sheet feeding
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
    • G03G2215/00371—General use over the entire feeding path
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
    • G03G2215/00405—Registration device
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00535—Stable handling of copy medium
    • G03G2215/00556—Control of copy medium feeding
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00535—Stable handling of copy medium
    • G03G2215/00556—Control of copy medium feeding
    • G03G2215/00569—Calibration, test runs, test prints

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Handling Of Sheets (AREA)
  • Handling Of Cut Paper (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Description

【発明の詳細な説明】 （技術分野） 本発明は、静電記録法を用いた装置の転写紙給
送特性の検査方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a method for inspecting transfer paper feeding characteristics of an apparatus using electrostatic recording.

（従来技術） 一般に、静電記録法を用いた装置では、像担持
体の表面に原稿像に応じた静電潜像パターンを形
成し、該静電潜像パターンにトナーを付着させて
現像し、現像されたトナー像を給送された転写紙
に転写し、該転写紙に転写された前記トナー像を
定着するように構成されている。(Prior Art) Generally, in an apparatus using electrostatic recording, an electrostatic latent image pattern corresponding to an original image is formed on the surface of an image carrier, and toner is attached to the electrostatic latent image pattern to develop it. , the developed toner image is transferred to a fed transfer paper, and the toner image transferred to the transfer paper is fixed.

第１図は静電記録法と一つである電子写真法を
用いた記録装置の一例の要部概略構成図であつ
て、像担特体がドラム状に形成された電子写真複
写装置の例を示している。第１図において、１は
セレン等でなる感光体層を表面に設けた感光体ド
ラム、２はコロナ放電によつて感光体ドラム１の
感光体に電荷を帯びさせる帯電電極である。３は
光学台（図示せず）上の原稿像に応じた反射光を
感光体ドラム１表面に当てて、静電潜像を形成す
る光学系、４は静電潜像にトナーを付着させ、ト
ナー可視像を形成する現像部である。５は給紙カ
セツト６に収納された転写紙PRを、所定の位置
まで送出する第１給紙ローラ、７は感光体ドラム
１表面のトナー可視像と転写紙PRとが一致する
ように転写紙PRを送り出す第２給紙ローラであ
る。又、８はコロナ放電によつてドラム表面のト
ナー可視像を転写紙PRに転写する転写電極、９
はコロナ放電によつて感光体ドラム１表面から転
写紙PRを引き離す分離電極、１０は感光体ドラ
ム１表面から分離された転写紙PRを定着部１１
に搬送する搬送部である。更に、１２は感光体ド
ラム１表面に残つているトナーを清掃するクリー
ニング部、１３は複写サイクルの開始に先だつて
感光体ドラム１を全面露光する前露光部である。 FIG. 1 is a schematic diagram of the main parts of an example of a recording device using electrophotography, which is one type of electrostatic recording method, and is an example of an electrophotographic copying device in which the image carrier is formed in the shape of a drum. It shows. In FIG. 1, reference numeral 1 denotes a photoreceptor drum having a photoreceptor layer made of selenium or the like provided on its surface, and 2 a charging electrode that charges the photoreceptor of the photoreceptor drum 1 by corona discharge. 3 is an optical system that forms an electrostatic latent image by applying reflected light corresponding to an original image on an optical table (not shown) to the surface of the photoreceptor drum 1; 4 is an optical system that attaches toner to the electrostatic latent image; This is a developing section that forms a toner visible image. 5 is a first paper feed roller that feeds the transfer paper PR stored in the paper feed cassette 6 to a predetermined position, and 7 is a roller that transfers the transfer paper PR so that the toner visible image on the surface of the photosensitive drum 1 matches the transfer paper PR. This is the second paper feed roller that sends out the paper PR. Further, 8 is a transfer electrode that transfers the toner visible image on the drum surface to the transfer paper PR by corona discharge, 9
10 is a separation electrode that separates the transfer paper PR from the surface of the photoreceptor drum 1 by corona discharge, and 10 is a fixing part 11 for separating the transfer paper PR separated from the surface of the photoreceptor drum 1
This is the transport unit that transports the Further, 12 is a cleaning section for cleaning toner remaining on the surface of the photoreceptor drum 1, and 13 is a pre-exposure section for exposing the entire surface of the photoreceptor drum 1 to light prior to the start of the copying cycle.

ところで、このような装置において、転写紙
PRを給送するのにあたつては、転写紙PRが像担
持体である感光体ドラム１の軸に対して傾きを生
じたり、軸方向の何れか一方（即ち側方）に寄つ
たり、タイミングずれにより感光体ドラム１表面
のトナー可視像の端部（送り方向）と転写紙PR
の端部（送り方向）とがずれたりしないようにす
る必要がある。 By the way, in such a device, the transfer paper
When feeding the PR, there is a possibility that the transfer paper PR may be tilted with respect to the axis of the photosensitive drum 1, which is the image carrier, or may be shifted to one side (i.e., to the side) in the axial direction. , Due to a timing shift, the edge of the visible toner image on the surface of the photoreceptor drum 1 (in the feeding direction) and the transfer paper PR
It is necessary to ensure that the edges (feeding direction) do not deviate from each other.

そこで、従来から、例えば第２図（転写紙PR
の進行方向に対して垂直な断面を示す）に示すよ
うに、発光ダイオードLEDとミラーMR及びフオ
トトランジスタPTとを組み合わせた反射形セン
サを用いて給送特性を検査することが行われてい
る。 Therefore, conventionally, for example, as shown in Figure 2 (transfer paper PR
As shown in Figure 2 (a cross section perpendicular to the direction of travel), feeding characteristics are tested using a reflective sensor that combines a light emitting diode LED, a mirror MR, and a phototransistor PT.

しかし、従来方法では、光路が第２図中の実線
Ｌで示すようになり、転写紙PRの位置が上下方
向Δyに変動した場合Δxにズレを生じ、に正確な
測定が行えないという問題がある。 However, in the conventional method, the optical path becomes as shown by the solid line L in Fig. 2, and if the position of the transfer paper PR changes in the vertical direction Δy, a shift occurs in Δx, making it impossible to perform accurate measurements. be.

（発明の目的） 本発明は、このような点に鑑みてなされたもの
で、その目的は、精度良く転写紙の給送特性を検
査できる転写紙給送特性検査方法を提供すること
にある。(Object of the Invention) The present invention has been made in view of the above points, and an object thereof is to provide a transfer paper feeding characteristic testing method that can accurately test the feeding characteristics of a transfer paper.

（発明の構成） この目的を達成する本発明は、像担持体の表面
に、静電潜像形成手段によつて離散的な複数の検
査パターンを形成し、これを転写紙に転写し、こ
の検査パターンの転写状態に基づいて、静電記録
法を用いた装置の転写紙給送特性の検査を行う方
法であつて、 前記転写紙は、互いに平行状態を保つて対向す
る第１および第２の辺と、この第１および第２の
辺と直角をなして接し、かつ、互いに平行状態を
保つて対向する第３および第４の辺とにより外形
が特定される四角形の形状をしており、 この転写紙は、前記第１および第２の辺が伸び
る方向、すなわち、それらの辺の延長線の方向に
給送されるようになつており、 前記検査パターンは、転写紙の給送時における
傾きや片寄りを検査するための離散的な第１、第
２、第３、第４の直線パターンＰ１，Ｐ２，Ｐ
３，Ｐ４と、像担持体の表面に形成される原稿像
に応じたトナー可視像の端部と転写紙端部との位
置関係、すなわちタイミングずれを検査するため
の、所定間隔をもつて配置された第１、第２、第
３のドツトパターンDP１，DP２，DP３とから
なつており、 また、転写紙のずれや傾きによつて生じる前記
第１または第２の辺の、前記第３または第４の辺
の方向における位置の変移幅ｄ１，ｄ２があらか
じめ特定されており、 転写紙が誤差なく給送された場合の、その転写
紙が描く帯の軌跡を考え、その帯における前記転
写紙の第１の辺の延長線を挟んで第１の直線パタ
ーンＰ１が帯の外側に、第２の直線パターンＰ２
が帯の内側に、かつ、その第１の辺と平行に、か
つ、前記変移幅ｄ１の間隔をもつて形成されるよ
うに、その第１および第２の直線パターンに対応
した静電潜像が前記静電潜像形成手段により像担
持体上に形成され、 また、その帯における前記転写紙の第２の辺の
延長線を挟んで前記第３の直線パターンＰ５が帯
の外側に、第４の直線パターンＰ４が帯の内側
に、その第２の辺と平行に、かつ、前記変移幅の
間隔ｄ２をもつて形成されるように、前記第３お
よび第４の直線パターンの静電潜像が前記静電潜
像形成手段により像担持体上に形成され、 また、前記トナー可視像の端部と転写紙端部と
の位置関係を検査するための、所定間隔をもつて
配置された第１、第２、第３のドツトパターンに
おいて、第１のドツトパターンDP１は転写紙の
搬送方向に沿う進み位置を、第２のドツトパター
ンDP２は正常位置を、第３のドツトパターンDP
３は遅れ位置をそれぞれ表すものであり、各ドツ
トパターンは、転写紙の中央位置に沿つて配置さ
れるようになつており、 前記第１のドツトパターンDP１の静電潜像は、
正常な給送がなされた場合の転写紙の先端から外
れた、時間的にさらに進んだ位置に対応して像担
持体上に前記静電潜像形成手段により形成され、
前記第２のドツトパターンDP２の静電潜像は、
正常な給送がなされた場合の転写紙の先端と外側
と内側にまたがる位置に対応して像担持体上に前
記静電潜像形成手段により形成され、前記第３の
ドツトパターンDP３の静電潜像は、正常な給送
がなされた場合の転写紙の内側の、時間的に遅れ
た位置に対応して像担持体上に前記静電潜像形成
手段により形成され、 これらの複数の静電潜像パターンよりなる検査
用パターンが形成された後、 該検査パターンにトナーを付着させて現像し、
該現像検査パターンを転写紙に転写し、 前記第２および第４の直線パターンＰ２，Ｐ４
が、転写紙の両側において、前記第１および第２
の辺に平行に、かつ対称的に転写されていた場合
に、転写紙の給送時の傾きや片寄りがなく正常と
判定し、 また、前記第２のドツトパターンDP２の半分
および、これに続く第３のドツトパターンが転写
されていた場合に、給送タイミングが正常である
と判定し、これによつて、転写紙の給送特性の検
査を行うようにしたことを特徴とするものであ
る。(Structure of the Invention) The present invention achieves this object by forming a plurality of discrete inspection patterns on the surface of an image carrier by an electrostatic latent image forming means, transferring the inspection patterns to a transfer paper, and transferring the inspection patterns to a transfer paper. A method for inspecting transfer paper feeding characteristics of an apparatus using an electrostatic recording method based on a transfer state of a test pattern, wherein the transfer paper has first and second sheets facing each other while maintaining a parallel state to each other. It has a rectangular shape whose outer shape is specified by the sides of , and the third and fourth sides that are in contact with the first and second sides at right angles and are parallel to each other and face each other. , the transfer paper is fed in the direction in which the first and second sides extend, that is, in the direction of the extension line of those sides, and the inspection pattern is formed when the transfer paper is fed. Discrete first, second, third, and fourth straight line patterns P1, P2, P for inspecting inclination and offset in
3. P4 and the positional relationship between the edge of the toner visible image and the edge of the transfer paper according to the original image formed on the surface of the image carrier, that is, at a predetermined interval to inspect the timing deviation. It consists of arranged first, second, and third dot patterns DP1, DP2, and DP3, and the third dot pattern on the first or second side caused by displacement or inclination of the transfer paper. Alternatively, the positional shift widths d1 and d2 in the direction of the fourth side are specified in advance, and when the transfer paper is fed without error, consider the locus of the band drawn by the transfer paper, and calculate the transfer in that band. The first straight line pattern P1 is placed on the outside of the band across the extension line of the first side of the paper, and the second straight line pattern P2 is placed on the outside of the band.
An electrostatic latent image corresponding to the first and second linear patterns is formed inside the band, parallel to the first side thereof, and with an interval of the displacement width d1. is formed on the image carrier by the electrostatic latent image forming means, and the third linear pattern P5 is formed on the outside of the band across the extension line of the second side of the transfer paper in the band. The electrostatic latent of the third and fourth linear patterns is formed so that the fourth linear pattern P4 is formed inside the band, parallel to the second side thereof, and with an interval d2 equal to the displacement width. An image is formed on the image carrier by the electrostatic latent image forming means, and is arranged at a predetermined interval for inspecting the positional relationship between the edge of the toner visible image and the edge of the transfer paper. In the first, second, and third dot patterns, the first dot pattern DP1 indicates the advanced position along the transfer direction of the transfer paper, the second dot pattern DP2 indicates the normal position, and the third dot pattern DP
3 represents the delay position, each dot pattern is arranged along the center position of the transfer paper, and the electrostatic latent image of the first dot pattern DP1 is:
formed by the electrostatic latent image forming means on the image carrier at a position farther forward in time than the leading edge of the transfer paper when the transfer paper is normally fed;
The electrostatic latent image of the second dot pattern DP2 is
The third dot pattern DP3 is formed by the electrostatic latent image forming means on the image carrier corresponding to the leading edge of the transfer paper and the position extending between the outside and the inside when the transfer paper is fed normally. A latent image is formed by the electrostatic latent image forming means on the image carrier at a time-delayed position on the inside of the transfer paper when the transfer paper is normally fed, and the latent image is formed by the electrostatic latent image forming means. After an inspection pattern consisting of an electrostatic latent image pattern is formed, toner is attached to the inspection pattern and developed;
Transferring the development inspection pattern to a transfer paper, and forming the second and fourth linear patterns P2 and P4.
However, on both sides of the transfer paper, the first and second
If the transfer paper is transferred parallel to and symmetrically with the side of If the following third dot pattern has been transferred, it is determined that the feeding timing is normal, and based on this, the feeding characteristics of the transfer paper are inspected. be.

（実施例） 以下、図面を参照し本発明方法の一例を説明す
る。(Example) Hereinafter, an example of the method of the present invention will be described with reference to the drawings.

第３図は本発明に係る方法を実施するための装
置の具体例の要部を示す構成説明図であつて、感
光体ドラム１の表面（例えば第１図の原稿からの
照射光入射部の下流側で且つ現像装置４前の領
域）に離散的な５本の静電潜像パターンP1〜P5
よりなる検査用パターンを形成するための、光フ
アイバOFと発光ダイオードLEDよりなる静電潜
像形成機構が設けられている。ここで、両側に２
本ずつ形成される静電潜像パターンP1，P2及び
P4，P5は転写紙PRの給送時における傾きや片寄
りを検査するためのものであり、中央に形成され
る静電潜像パターンP3は感光体ドラム１表面に
形成される原稿像に応じたトナー可視像の端部と
転写紙PRの端部との位置関係（タイミングずれ）
を検査するためのものである。即ち、外側の静電
潜剤パターンP1，P5間の距離ａは転写紙PRの幅
ｂよりも長く、内側の静電潜像パターンP2，P4
の距離ｃは転写紙PRの幅ｂよりも短く形成され、
更に、一方の静電潜像パターンP1，P2間の距離
d1と他方の静電潜像パターンP4，P5間の距離d2は
等しくなるように形成されている。又、中央の静
電潜像パターンP3は、例えば、デイジタル制御
されたドツトパターンとして転写紙PRの送り方
向に沿つて進み位置を表わす第１のドツトパター
ンDP1、正常位置を表わす第２のドツトパターン
DP2及び遅れ位置を表わす第３のドツトパターン
DP3が等間隔に形成されている。尚、これらドツ
トパターンDP1〜DP3の間隔は、例えばカウンタ
とPROMとを組み合せて給送速度に関連してデ
イジタル制御することにより容易且つ正確に任意
の値に設定することができる。 FIG. 3 is a configuration explanatory diagram showing the main parts of a specific example of an apparatus for carrying out the method according to the present invention, and shows the surface of the photosensitive drum 1 (for example, the incident part of the irradiated light from the original in FIG. 1). Five discrete electrostatic latent image patterns P 1 to P 5 on the downstream side and in front of the developing device 4)
An electrostatic latent image forming mechanism consisting of an optical fiber OF and a light emitting diode LED is provided to form an inspection pattern consisting of the following. Here, 2 on each side
Electrostatic latent image patterns P 1 , P 2 and
P 4 and P 5 are for inspecting the inclination and deviation of the transfer paper PR during feeding, and the electrostatic latent image pattern P 3 formed in the center is for inspecting the document formed on the surface of the photoreceptor drum 1. Positional relationship between the edge of the toner visible image and the edge of the transfer paper PR depending on the image (timing deviation)
It is for testing. That is, the distance a between the outer electrostatic latent agent patterns P 1 and P 5 is longer than the width b of the transfer paper PR, and the distance a between the inner electrostatic latent image patterns P 2 and P 4 is longer than the width b of the transfer paper PR.
The distance c is formed shorter than the width b of the transfer paper PR,
Furthermore, the distance between one electrostatic latent image pattern P 1 and P 2
The distance d 2 between d 1 and the other electrostatic latent image patterns P 4 and P 5 is formed to be equal. Further, the central electrostatic latent image pattern P 3 is, for example, a digitally controlled dot pattern that includes a first dot pattern DP 1 representing the advancing position along the feeding direction of the transfer paper PR, and a second dot pattern DP 1 representing the normal position. dot pattern
Third dot pattern representing DP 2 and lag position
DP 3 is formed at equal intervals. Incidentally, the intervals between these dot patterns DP 1 to DP 3 can be easily and accurately set to any value by digitally controlling the feeding speed using a combination of a counter and a PROM, for example.

本発明に係る検査は、次のようにして行われ
る。 The inspection according to the present invention is performed as follows.

まず、第３図に示すような構成により、像担持
体である感光ドラム１の表面に、離散的な複数の
静電潜像パターンP1〜P5よりなる検査パターン
が形成される。次に、これら検査パターンには第
１図に示すような現像部４によりトナーが付着さ
れ、トナー可視像が形成される。このようにして
可視化された検査パターンは、給送される転写紙
PRに転写される。これにより、転写紙PRには、
感光体ドラム１との位置関係に応じて、第４図ａ
〜ｃに示すような検査パターンが転写されること
になる。第４図ａは転写紙PRが感光体ドラム１
の軸に対して傾きを生じたり軸方向の何れか一方
に片寄ることなく正しく給送されている例を示
し、第４図ｂは感光体ドラム１の軸に対して傾き
を生じた状態で給送されている例を示し、第４図
ｃは感光体ドラム１表面のトナー可視像の端部と
転写紙PRの端部とがずれを生じることなく一致
した正しいタイミング状態で給送されている例を
示している。これら第４図の転写例から明らかな
ように、転写紙PRが傾きや片寄りを生じること
なく正しく給送されている場合には転写紙PRの
両側に１本ずつ対称的に検査パターンP2及びP4
に転写されることになり、傾きや片寄りを生じた
状態で給送されている場合には何れか一方の側に
２本の検査パターンが転写されて他方の側には全
く検査パターンが転写されなかつたり、傾斜した
検査パターンが転写されることになる。又、給送
タイミングが正しい場合には、第２のドツトパタ
ーンDP2の半分及び続く第３のドツトパターン
DP3が転写されるが、給送タイミングが早い場合
には第２のドツトパターンDP2の半分を越える部
分が転写され、給送タイミングが遅い場合には第
２のドツトパターンDPの半分に満たない部分が
転写されることになる。 First, with the configuration shown in FIG. 3, an inspection pattern consisting of a plurality of discrete electrostatic latent image patterns P1 to P5 is formed on the surface of the photosensitive drum 1, which is an image carrier. Next, toner is attached to these test patterns by a developing section 4 as shown in FIG. 1, and a visible toner image is formed. The inspection pattern visualized in this way is
Transcribed to PR. As a result, for transfer paper PR,
4a depending on the positional relationship with the photoreceptor drum 1.
Inspection patterns as shown in ~c will be transferred. In Figure 4a, the transfer paper PR is photosensitive drum 1.
An example is shown in which the photosensitive drum 1 is fed correctly without being tilted with respect to the axis of the photosensitive drum 1 or shifted to either side in the axial direction. Fig. 4c shows an example in which the toner visible image on the surface of the photoreceptor drum 1 and the edge of the transfer paper PR are fed at the correct timing and coincide with each other without any misalignment. An example is shown below. As is clear from these transfer examples in Fig. 4, when the transfer paper PR is fed correctly without any inclination or deviation, the inspection pattern P 2 is symmetrically formed, one on each side of the transfer paper PR. and P 4
If the paper is being fed with an inclination or deviation, two inspection patterns will be transferred to one side and no inspection pattern will be transferred to the other side. Otherwise, a tilted inspection pattern may be transferred. Also, if the feeding timing is correct, half of the second dot pattern DP 2 and the following third dot pattern
DP 3 is transferred, but if the feeding timing is early, more than half of the second dot pattern DP 2 will be transferred, and if the feeding timing is slow, half of the second dot pattern DP will be transferred. The missing parts will be transferred.

従つて、これら転写紙PRに転写される検査パ
ターンを目視或いは光電変換素子を用いて識別す
ることにより、転写紙PRの給送特性を検査する
ことができる。このような方法によれば、従来の
ような反射光学系の場合のように転写紙の上下方
向のずれによる測定誤差が生じることなく、正確
な検査が行える。 Therefore, by visually identifying the inspection patterns transferred to the transfer paper PR or using a photoelectric conversion element, the feeding characteristics of the transfer paper PR can be inspected. According to such a method, accurate inspection can be performed without causing measurement errors due to vertical displacement of the transfer paper unlike in the case of a conventional reflective optical system.

尚、これら転写紙PRに転写された検査パター
ンに基づく検査は、定着前（例えば搬送部上）で
あつてもよいし、定着後であつてもよい。又、検
査パターンは上記実施例に限定されるものではな
く、転写パターンから傾き、片寄り、タイミング
のずれの大きさ等が読み取れるようにしてもよ
い。更に、検査パターンの書き込み系は発光ダイ
オードと光フアイバの組み合せに限るものではな
く、レーザプリンタの場合にはレーザビームの走
査系を制御するようにしてもよいし、棒状光源を
用いる装置の場合には所定のスリツトが形成され
たシヤツターを用いるようにしてもよい。 Note that the inspection based on the inspection patterns transferred to the transfer paper PR may be performed before fixing (for example, on the conveying section) or after fixing. Further, the inspection pattern is not limited to the above-mentioned embodiment, and the magnitude of inclination, offset, timing shift, etc. may be read from the transferred pattern. Furthermore, the test pattern writing system is not limited to a combination of light emitting diodes and optical fibers; in the case of a laser printer, the scanning system of the laser beam may be controlled, and in the case of a device using a rod-shaped light source, Alternatively, a shutter in which a predetermined slit is formed may be used.

又、前述の発光体と光源との組合せの他の場合
にも本発明を適用できる。例えば、放電電極と誘
電記録体の組合せにおいて、放電電極により誘電
記録体に静電潜像を形成し、これを現像する場合
であつても同様な効果を得ることができる。 Furthermore, the present invention can be applied to other combinations of the above-mentioned light emitter and light source. For example, in a combination of a discharge electrode and a dielectric recording material, the same effect can be obtained even when an electrostatic latent image is formed on the dielectric recording material by the discharge electrode and this is developed.

（発明の効果） 以上説明したように、本発明によれば、電子写
真を応用した装置の転写紙の給送特性を正確に検
査することができる。(Effects of the Invention) As described above, according to the present invention, it is possible to accurately test the feeding characteristics of transfer paper in an apparatus to which electrophotography is applied.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は電子写真を応用した装置の一例の要部
構成図、第２図は従来の検査方法の説明図、第３
図は本発明の一実施例の説明図、第４図は第３図
の動作説明図である。 LED……発光ダイオード、OF……光フアイ
バ、PR……転写紙、P1〜P5……静電潜像パター
ン（検査パターン）、DP1〜DP3……ドツトパタ
ーン（検査パターン）。 Figure 1 is a block diagram of the main parts of an example of a device that applies electrophotography, Figure 2 is an explanatory diagram of a conventional inspection method, and Figure 3 is an illustration of a conventional inspection method.
The figure is an explanatory diagram of one embodiment of the present invention, and FIG. 4 is an explanatory diagram of the operation of FIG. 3. LED...Light emitting diode, OF...Optical fiber, PR...Transfer paper, P1 to P5 ...Electrostatic latent image pattern (inspection pattern), DP1 to DP3 ...Dot pattern (inspection pattern).

Claims (1)

【特許請求の範囲】 １ 像担持体の表面に、静電潜像形成手段によつ
て離散的な複数の検査パターンを形成し、これを
転写紙に転写し、この検査パターンの転写状態に
基づいて、静電記録法を用いた装置の転写紙給送
特性の検査を行う方法であつて、 前記転写紙は、互いに平行状態を保つて対向す
る第１および第２の辺と、この第１および第２の
辺と直角をなして接し、かつ、互いに平行状態を
保つて対向する第３および第４の辺とにより外形
が特定される四角形の形状をしており、 この転写紙は、前記第１および第２の辺が伸び
る方向、すなわち、それらの辺の延長線の方向に
給送されるようになつており、 前記検査パターンは、転写紙の給送時における
傾きや片寄りを検査するための離散的な第１、第
２、第３、第４の直線パターンＰ１，Ｐ２，Ｐ
３，Ｐ４と、像担持体の表面に形成される原稿像
に応じたトナー可視像の端部と転写紙端部との位
置関係、すなわちタイミングずれを検査するため
の、所定間隔をもつて配置された第１、第２、第
３のドツトパターンDP１，DP２，DP３とから
なつており、 また、転写紙のずれや傾きによつて生じる前記
第１または第２の辺の、前記第３または第４の辺
の方向における位置の変移幅ｄ１，ｄ２があらか
じめ特定されており、 転写紙が誤差なく給送された場合の、その転写
紙が描く帯の軌跡を考え、その帯における前記転
写紙の第１の辺の延長線を挟んで第１の直線パタ
ーンＰ１が帯の外側に、第２の直線パターンＰ２
が帯の内側に、かつ、その第１の辺と平行に、か
つ、前記変移幅ｄ１の間隔をもつて形成されるよ
うに、その第１および第２の直線パターンに対応
した静電潜像が前記静電潜像形成手段により像担
持体上に形成され、 また、その帯における前記転写紙の第２の辺の
延長線を挟んで前記第３の直線パターンＰ５が帯
の外側に、第４の直線パターンＰ４が帯の内側
に、その第２の辺と平行に、かつ、前記変移幅の
間隔ｄ２をもつて形成されるように、前記第３お
よび第４の直線パターンの静電潜像が前記静電潜
像形成手段により像担持体上に形成され、 また、前記トナー可視像の端部と転写紙端部と
の位置関係を検査するための、所定間隔をもつて
配置された第１、第２、第３のドツトパターンに
おいて、第１のドツトパターンDP１は転写紙の
搬送方向に沿う進み位置を、第２のドツトパター
ンDP２は正常位置を、第３のドツトパターンDP
３は遅れ位置をそれぞれ表すものであり、各ドツ
トパターンは、転写紙の中央位置に沿つて配置さ
れるようになつており、 前記第１のドツトパターンDP１の静電潜像は、
正常な給送がなされた場合の転写紙の先端から外
れた、時間的にさらに進んだ位置に対応して像担
持体上に前記静電潜像形成手段により形成され、
前記第２のドツトパターンDP２の静電潜像は、
正常な給送がなされた場合の転写紙の先端の外側
と内側にまたがる位置に対応して像担持体上に前
記静電潜像形成手段により形成され、前記第３の
ドツトパターンDP３の静電潜像は、正常な給送
がなされた場合の転写紙の内側の、時間的に遅れ
た位置に対応して像担持体上に前記静電潜像形成
手段により形成され、 これらの複数の静電潜像パターンよりなる検査
用パターンが形成された後、 該検査パターンにトナーを付着させて現像し、
該現像検査パターンを転写紙に転写し、 前記第２および第４の直線パターンＰ２，Ｐ４
が、転写紙の両側において、前記第１および第２
の辺に平行に、かつ対称的に転写されていた場合
に、転写紙の給送時の傾きや片寄りがなく正常と
判定し、 また、前記第２のドツトパターンDP２の半分
および、これに続く第３のドツトパターンが転写
されていた場合に、給送タイミングが正常である
と判定し、これによつて、 転写紙の給送特性の検査を行うようにしたこと
を特徴とする転写紙給送特性検査方法。[Scope of Claims] 1. A plurality of discrete inspection patterns are formed on the surface of an image carrier by an electrostatic latent image forming means, these are transferred to transfer paper, and based on the transferred state of the inspection patterns, A method for inspecting transfer paper feeding characteristics of an apparatus using an electrostatic recording method, wherein the transfer paper has first and second sides facing each other while maintaining a parallel state, and the first side. and third and fourth sides that are in contact with the second side at right angles and that are parallel to each other and face each other. The transfer paper is fed in the direction in which the first and second sides extend, that is, in the direction of the extension line of those sides, and the inspection pattern is used to inspect the inclination or deviation of the transfer paper when it is fed. Discrete first, second, third, and fourth straight line patterns P1, P2, P for
3. P4 and the positional relationship between the edge of the toner visible image and the edge of the transfer paper according to the original image formed on the surface of the image carrier, that is, at a predetermined interval to inspect the timing deviation. It consists of arranged first, second, and third dot patterns DP1, DP2, and DP3, and the third dot pattern on the first or second side caused by displacement or inclination of the transfer paper. Alternatively, the positional shift widths d1 and d2 in the direction of the fourth side are specified in advance, and when the transfer paper is fed without error, consider the locus of the band drawn by the transfer paper, and calculate the transfer in that band. The first straight line pattern P1 is placed on the outside of the band across the extension line of the first side of the paper, and the second straight line pattern P2 is placed on the outside of the band.
An electrostatic latent image corresponding to the first and second linear patterns is formed inside the band, parallel to the first side thereof, and with an interval of the displacement width d1. is formed on the image carrier by the electrostatic latent image forming means, and the third linear pattern P5 is formed on the outside of the band across the extension line of the second side of the transfer paper in the band. The electrostatic latent of the third and fourth linear patterns is formed so that the fourth linear pattern P4 is formed inside the band, parallel to the second side thereof, and with an interval d2 equal to the displacement width. An image is formed on the image carrier by the electrostatic latent image forming means, and is arranged at a predetermined interval for inspecting the positional relationship between the edge of the toner visible image and the edge of the transfer paper. In the first, second, and third dot patterns, the first dot pattern DP1 indicates the advanced position along the transfer direction of the transfer paper, the second dot pattern DP2 indicates the normal position, and the third dot pattern DP
3 represents the delay position, each dot pattern is arranged along the center position of the transfer paper, and the electrostatic latent image of the first dot pattern DP1 is:
formed by the electrostatic latent image forming means on the image carrier at a position farther forward in time than the leading edge of the transfer paper when the transfer paper is normally fed;
The electrostatic latent image of the second dot pattern DP2 is
The third dot pattern DP3 is formed on the image carrier by the electrostatic latent image forming means in a position corresponding to the outside and inside of the leading edge of the transfer paper when the transfer paper is fed normally. A latent image is formed by the electrostatic latent image forming means on the image carrier at a time-delayed position on the inside of the transfer paper when the transfer paper is normally fed, and these plural electrostatic latent images are After an inspection pattern consisting of an electrostatic latent image pattern is formed, toner is attached to the inspection pattern and developed;
Transferring the development inspection pattern to a transfer paper, and forming the second and fourth linear patterns P2 and P4.
However, on both sides of the transfer paper, the first and second
If the transfer paper is transferred parallel to and symmetrically with the side of A transfer paper characterized in that when a subsequent third dot pattern is transferred, the feeding timing is determined to be normal, and based on this, the feeding characteristics of the transfer paper are inspected. Feeding characteristics inspection method.
JP58187350A 1983-10-05 1983-10-05 Method for inspecting feed characteristics of transfer paper Granted JPS6078464A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58187350A JPS6078464A (en) 1983-10-05 1983-10-05 Method for inspecting feed characteristics of transfer paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58187350A JPS6078464A (en) 1983-10-05 1983-10-05 Method for inspecting feed characteristics of transfer paper

Publications (2)

Publication Number Publication Date
JPS6078464A JPS6078464A (en) 1985-05-04
JPH045187B2 true JPH045187B2 (en) 1992-01-30

Family

ID=16204451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58187350A Granted JPS6078464A (en) 1983-10-05 1983-10-05 Method for inspecting feed characteristics of transfer paper

Country Status (1)

Country Link
JP (1) JPS6078464A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4711552A (en) * 1986-05-19 1987-12-08 International Business Machines Corporation Synchronizing electrostatic copy formation
JPH02187775A (en) * 1989-01-14 1990-07-23 Mita Ind Co Ltd Electrophotographic copying machine
JP5045719B2 (en) * 2009-09-15 2012-10-10 ブラザー工業株式会社 Image forming apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49119630A (en) * 1973-03-15 1974-11-15
DE2832297C2 (en) * 1978-07-22 1986-09-25 Günter Horst 7927 Sontheim Röhm Chuck
JPS5541535A (en) * 1978-09-18 1980-03-24 Toshiba Corp Information recording device
US4414579A (en) * 1979-12-28 1983-11-08 International Business Machines Corporation Information transmitting and receiving station utilizing a copier-printer
US4335952A (en) * 1980-09-11 1982-06-22 International Business Machines Corporation Copy quality diagnostic procedure

Also Published As

Publication number Publication date
JPS6078464A (en) 1985-05-04

Similar Documents

Publication Publication Date Title
US4949104A (en) Justification system for use in a printer employing a continuous form
JP2001027852A (en) Image forming device
US6934498B2 (en) Color image forming apparatus, tandem type color image forming apparatus, and process cartridge for color image forming apparatus
JPH1165397A (en) Image forming device
US5272492A (en) Compensation of magnification mismatch in single pass color printers
JPH0736230A (en) Image density control method
US5722009A (en) Color image forming apparatus having a transparent image forming drum with detectors inside of the drum
EP0810768A1 (en) Image forming apparatus
US7401990B2 (en) Paper path calibration and diagnostic system
JPH045187B2 (en)
JPH03149575A (en) Color printer
JP3189097B2 (en) Color image forming equipment
JPH10142895A (en) Color image forming equipment
JP2943897B2 (en) How to adjust density parameters
JP2000075594A (en) Device forming plural toner images mutually registered on base material
JP2002108169A (en) Image forming device
JPH0632946B2 (en) Information recording device
JP2000137367A (en) Color image forming apparatus and registration pattern forming method
JP3182619B2 (en) Color image forming equipment
US6295424B1 (en) Electrostatographic image-forming apparatus and method
JP3458579B2 (en) Image forming device
JP2522267B2 (en) Recording device
JP2001100472A (en) Method for detecting and correcting defective alignment of color plane on intermediate transfer belt
JPH07306624A (en) Tandem type color image forming device
JP2876755B2 (en) Electrophotographic equipment