JPS6118978A - Color deviation adjusting device of two-color copying machine - Google Patents
Color deviation adjusting device of two-color copying machineInfo
- Publication number
- JPS6118978A JPS6118978A JP59138881A JP13888184A JPS6118978A JP S6118978 A JPS6118978 A JP S6118978A JP 59138881 A JP59138881 A JP 59138881A JP 13888184 A JP13888184 A JP 13888184A JP S6118978 A JPS6118978 A JP S6118978A
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- straight line
- color shift
- color
- adjustment
- 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
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
- G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
- G03G15/0105—Details of unit
- G03G15/011—Details of unit for exposing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
Description
【発明の詳細な説明】
技術分野
本発明は、光束分割を利用した二色複写機の色ずれ調整
装置に関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a color shift adjustment device for a two-color copying machine that utilizes luminous flux division.
従来技術
二色複写機としては、例えば第5図に示す如く、露光光
学系の結像レンズ1の出射側にハーフミラ−等の光束分
割手段2を配置し、原稿の反射光束を一定の割合で反射
光束と透過光束とに分割し、分割された夫々の光束をミ
ラーで反射させて夫々側の感光体ドラム8 、9 J二
に所定の露光位置6゜7で結像させ、感光体面に所定の
プロセスで形成された各色画像に対応する潜像を異る色
のトナーで現像し、得られたトナー像を、感光体ドラム
9゜8に転写位置11.10で順次後する如く、感光体
ドラムと同じ周速で搬送される転写紙12」−に重ね合
せて転写することにより、原稿」二の2色画像と同じ位
置関係を有する二色の画像のコピーを作製するようにし
た複写機が知られている。各感光体9,8に逆像を形成
するために原稿面と感光体面との間に配置されるミラー
の枚数は偶数とすることが必要であるから、上記のハー
フミラ−2による透過光束の光路に設けられるミラーの
数と、反射光束に設けられるミラーの数とは、いずれか
が奇数でいずれかが偶数になる。第4図に示す例の場合
は、透過光束が辿る光路には1枚のミラー5が挿入され
、反射光束が辿る光路には2枚のミラー3.4が設けら
れている。In a conventional two-color copying machine, for example, as shown in FIG. 5, a beam splitting means 2 such as a half mirror is arranged on the output side of an imaging lens 1 of an exposure optical system, and the beam splitting means 2, such as a half mirror, is used to divide the reflected beam of the original into a fixed proportion. The light is divided into a reflected light beam and a transmitted light beam, and each of the divided light beams is reflected by a mirror to form an image on the photoreceptor drums 8 and 9J on each side at a predetermined exposure position of 6°7. The latent images corresponding to the respective color images formed in the process are developed with toners of different colors, and the resulting toner images are sequentially transferred onto the photoreceptor drum 9.8 at transfer positions 11 and 10. A copying machine that creates a copy of a two-color image having the same positional relationship as the two-color image of the original by superimposing the image on a transfer paper 12'' that is conveyed at the same circumferential speed as the drum. It has been known. In order to form a reverse image on each photoreceptor 9, 8, the number of mirrors arranged between the document surface and the photoreceptor surface needs to be an even number, so the optical path of the light beam transmitted by the half mirror 2 is The number of mirrors provided in the beam and the number of mirrors provided in the reflected light beam are either an odd number or an even number. In the example shown in FIG. 4, one mirror 5 is inserted in the optical path followed by the transmitted light beam, and two mirrors 3.4 are provided in the optical path followed by the reflected light beam.
この方式の二色複写機でコピー」二の2色の像が完全に
原稿上と同じ位置関係になるようにするには、一つには
光学的に2つの感光体への投影像が転写位置で一致する
ように投影されていることが必要である。すなわち、第
5図において、感光体ドラム8の露光位置6から転写位
置10迄の沿面距離をSl、感光体ドラム9の露光位置
7′から転写位置11迄の沿面距離をS3、両感光体ド
ラムの転写位置11.10間の距離を82とした場合、
S+=82+83であることが要件となる。Copying with this type of two-color copying machine" In order for the two-color images to be in the same positional relationship as on the original, one is to optically transfer the projected images onto the two photoreceptors. It is necessary that the projections match in position. That is, in FIG. 5, the creepage distance from the exposure position 6 of the photoreceptor drum 8 to the transfer position 10 is S1, the creepage distance from the exposure position 7' of the photoreceptor drum 9 to the transfer position 11 is S3, and the creepage distance of both photoreceptor drums is S1. When the distance between the transfer positions 11 and 10 is 82,
The requirement is that S+=82+83.
また、立体的に見た場合は、第6図に示す如く、原稿上
で完全に平行で同じ長さで両端位置が揃つた2色の線分
の2つの感光体ドラム8 、9 J:の像q、rの相対
位置が正しければよい。すなわち、2線分q、rの端面
Q1のR8に対する相対位置と、Q2のR2に対する相
対位置が正しければよい。平面上の点の自由度は2であ
るから、2線分の相対位置を決定するには自由度が4で
あればよいととになる。すなわち、レンズ1以降の調整
パラメータを4にとってやればよい。別の考え方をする
ならば、下記の4つの色ずれのパラメータを一致させれ
ばよいと考えてもよい。Also, when viewed three-dimensionally, as shown in Figure 6, two photoreceptor drums 8, 9 J: of line segments of two colors that are completely parallel, have the same length, and have both end positions aligned on the original. It is only necessary that the relative positions of images q and r are correct. That is, it is only necessary that the relative position of the end face Q1 of the two line segments q and r with respect to R8 and the relative position of Q2 with respect to R2 are correct. Since a point on a plane has two degrees of freedom, it is sufficient to have four degrees of freedom to determine the relative positions of two line segments. That is, the adjustment parameter after lens 1 may be set to 4. If you think about it another way, you may think that it is sufficient to match the following four color shift parameters.
例えば第7図(a)に示す黒色の線分qと赤色の線分子
6が正しい関係位置である場合、ハーフミラ−2、各ミ
ラー8.4.5の取付位置、角度の精度及び各色の波長
による屈折率の差により、転写紙上の両色画像間にずれ
が発生する。これを「色ずれ」と称する。色ずれには第
7図(b) 、 (C) 、 (d) 。For example, if the black line segment q and the red line molecule 6 shown in FIG. Due to the difference in refractive index caused by the difference in refractive index, a shift occurs between the two color images on the transfer paper. This is called "color shift." Figure 7 (b), (C), (d) for color shift.
(e)に示す4つのモードがある。各図には黒色の線分
qを基準とした赤色線分子の位置を、その正しい位置r
。と対比して示す。(b)図に示す如く、線分子が走査
方向にずれた状態を「たてずれ」と云う。又、(c)図
に示す如く、送査方向と直角方向にずれた状態を「よこ
ずれ」という。又、本来の像に対して斜になった場合を
「スキューずれ」と云う。又、本来の像の長さよりも伸
縮した像になった状態を1倍率ずれ」と云う。There are four modes shown in (e). Each figure shows the position of the red line molecule based on the black line segment q, and its correct position r.
. Shown in comparison with (b) As shown in the figure, the state in which the line molecules are shifted in the scanning direction is called "vertical shift." Furthermore, as shown in Figure (c), the state of deviation in the direction perpendicular to the scanning direction is called "lateral deviation." Also, when the image is oblique to the original image, it is called "skew deviation". In addition, a state where the image is expanded or contracted more than the original length is called 1 magnification shift.
重ね合せ転写方式の二色複写機で両色画像を完全に原稿
」二と同じ状態に一致させるには、上記の4つのモード
のずれを一致させることが必要である。通常、二色複写
を行なう場合、色ずれは0.2請以下、望ましくは0.
1■以下にするのが望ましい、それ以上になると色ずれ
が目立ち、コピーが見苦しくなる。In order to completely match both color images to the same state as the original in a two-color copying machine using an overlapping transfer method, it is necessary to match the deviations of the four modes described above. Normally, when performing two-color copying, the color shift is 0.2 degrees or less, preferably 0.2 degrees or less.
It is desirable to set it to 1■ or less; if it is more than that, color shift becomes noticeable and the copy becomes unsightly.
さて、従来の一般的な色ずれ調整方法を、第5図の装置
を例に説明すると、ハーフミラ−2による透過光束の感
光体ドラム9に至る光路のミラー5を変位させて、感光
体ドラム8へ投影される像を基準として倍率ずれ、よこ
ずれ及びたてずれを調整する。しかし、前述の如く、完
全に色ずれ調整を行なうためには、4つのパラメータを
調整する必要がある。しかしながら、平面の自由度は3
であるから、ミラー5の変位だけでは3つのパラメータ
しか調整することはできない。Now, to explain a conventional general color misregistration adjustment method using the apparatus shown in FIG. The magnification shift, horizontal shift, and vertical shift are adjusted using the image projected onto the image as a reference. However, as described above, it is necessary to adjust four parameters in order to completely adjust the color shift. However, the degrees of freedom in the plane are 3
Therefore, only three parameters can be adjusted by simply displacing the mirror 5.
さらに詳しく説明すると、よこずれをdl、■整する場
合は第8図に示す如く、例えばミラー5の手前側を実線
で示す正規の位置から鎖線で示す位置に下げ、奥側を破
線で示す位置に」二けたとすると、第9図に示す如く感
光体9」二の線分子の像は実線で示すものとの位置より
も奥側に寄り、よこずれが調整される。しかし、第8図
に示す如く、ミラー5の手前側で反射した光線はもとの
投影位置よりも左側に投影され、奥側では右側に投影さ
れるため、像は第9図に示す如くもとの像に対しである
角度回転しスキューずれを併発する。これより、よこず
れとスキューずれとは互いに関連していることが理解さ
れよう。したがって、ミラー5以外の1枚のミラーを変
位させてよこずれを調整し、ミラー5と他の1枚のミラ
ーとのよこずれ調整によってスキューずれが相殺される
ようにすればすべての色ずれを調整することができる。To explain in more detail, when adjusting the horizontal misalignment by dl, ■, as shown in FIG. If the second line molecule image on the photoreceptor 9 is moved to the back side of the position shown by the solid line as shown in FIG. However, as shown in FIG. 8, the light beam reflected on the near side of the mirror 5 is projected to the left of the original projection position, and on the back side it is projected to the right, so the image is not as shown in FIG. The image is rotated by a certain angle, causing skew deviation. From this, it will be understood that the horizontal deviation and the skew deviation are related to each other. Therefore, if you adjust the lateral deviation by displacing one mirror other than mirror 5, and cancel out the skew deviation by adjusting the lateral deviation between mirror 5 and the other mirror, all color deviations can be eliminated. Can be adjusted.
さて、例えばミラー5によりたて色ずれ、よこ色ずれ及
び倍率ずれを調整する場合、たで色ずれ調整はミラー5
をスリット長手方向(ミラー5の長手方向)に延びる直
線の回りに回動し、第5図において感光体ドラム9への
入射位置7を感光体ドラムの円周方向にずらせばよい。Now, for example, when adjusting the vertical color shift, horizontal color shift, and magnification shift using the mirror 5, the vertical color shift adjustment is performed using the mirror 5.
is rotated around a straight line extending in the longitudinal direction of the slit (longitudinal direction of the mirror 5), and the incident position 7 on the photoreceptor drum 9 in FIG. 5 is shifted in the circumferential direction of the photoreceptor drum.
又、よこ色ずれ調整は、スリット短手方向(ミラー5の
短手方向)に延びる直線の回りにミラー5を回動させて
、感光体ドラム9」−への入射位置を感光体ドラム9の
軸方向(Cずらせばよい。倍率ずれの調整はミラー5を
入q]光軸方向に移動するとともに、これにより生じた
たて色ずれの調整を行なうことにより達成される。Further, to adjust the horizontal color shift, rotate the mirror 5 around a straight line extending in the lateral direction of the slit (the lateral direction of the mirror 5), and adjust the incident position on the photosensitive drum 9''. The magnification shift can be adjusted by moving the mirror 5 in the optical axis direction (C), and by adjusting the vertical color shift caused by this movement.
さて、上記のたで色ずれ調整、及び補色ずれ調整のだめ
のミラー5の回転中心は、構成が簡単になる点から、第
10図及び第11図に示す如く、調整のための回転中心
18.14をミラー5から外れたところにとることが多
かった。このようにした場合は、入射光軸15とミラー
5の反射面との交点が移動するため、レンズから感光体
ドラム上の入射位置迄の光路長が変化し、たて色ずれ、
補色ずれの調整に伴って却って倍率ずれが惹起され、そ
の調整が必要となり、倍率ずれ調整に伴いたて色ずれ調
整を再度行なう必要を生じ、試行錯誤的な調整を余儀な
くされる欠点があった。Now, the rotation center of the mirror 5 for the above-mentioned vertical color shift adjustment and complementary color shift adjustment is set as shown in FIGS. 10 and 11 from the viewpoint of simplifying the configuration. I often took the 14 in a place away from the mirror 5. In this case, since the intersection between the incident optical axis 15 and the reflective surface of the mirror 5 moves, the optical path length from the lens to the incident position on the photoreceptor drum changes, resulting in vertical color shift and
Adjustment of the complementary color shift actually causes a magnification shift, which needs to be adjusted, and it becomes necessary to perform the vertical color shift adjustment again as the magnification shift is adjusted, which has the disadvantage of forcing trial and error adjustment. .
目 的
本発明は、光束分割手段と2つの感光体を有する2色複
写機における従来の色ずれ調整装置における上述の欠点
を除去した、たて色ずれ調整及び補色ずれ調整が倍率ず
れに影響を与えることがなく、色ずれ調整が容易であり
、又、場合によっては倍率調整機構を省略することも可
能な、上記構成の2色複写機における色ずれ調整装置を
提供することを目的とする。Purpose The present invention eliminates the above-mentioned drawbacks of the conventional color shift adjustment device for a two-color copying machine having a light beam splitting means and two photoreceptors, and provides vertical color shift adjustment and complementary color shift adjustment that do not affect magnification shift. It is an object of the present invention to provide a color misregistration adjustment device for a two-color copying machine having the above-described configuration, which allows easy color misregistration adjustment without causing any damage, and can also omit a magnification adjustment mechanism in some cases.
構 成
本発明は、上記目的を達成せしめるため、光束分割手段
の後方にある1つのミラーにだて色ずれ調整機構と補色
ずれ調整機構とを設け、だて色ずれ調整機構は該ミラー
への入射光軸とミラー反則面との交点Pを通り、該ミラ
ー面に含まれ上記光軸と直交する直線り、を回転軸とし
てミラーを回動調整可能に構成されており、よこ色ずれ
調整機構は前記交点Pを通り、前記ミラー面に含1れ、
前記直線L 、 と直交する直線にほゞ等しい直線L
2を回転軸としてミラーを回転調整可能に構成されてい
ることを特徴とする。Structure: In order to achieve the above object, the present invention provides a single mirror behind the light beam splitting means with a bias color shift adjustment mechanism and a complementary color shift adjustment mechanism, and the bias color shift adjustment mechanism adjusts the amount of light incident on the mirror. The mirror is configured to be able to be rotated around a straight line that passes through the intersection point P between the optical axis and the mirror's nonconforming surface and is included in the mirror surface and perpendicular to the optical axis as the rotation axis, and the horizontal color shift adjustment mechanism is passing through the intersection P and being included in the mirror surface;
A straight line L that is approximately equal to the straight line perpendicular to the straight line L,
The mirror is configured such that the mirror can be rotated and adjusted using 2 as a rotation axis.
以下、本発明を図面に示す実施例に基づいて詳細に説明
する。Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.
第1図は、本発明による色ずれ調整のだめのミラーの変
位のさせ方を図式的に示した図で、たて色ずれ調整はミ
ラー5への入射光束の光軸15とミラー5の反則面との
交点Pを通り、該ミラー面に含まれ光軸15と直交する
直線L1を回転軸として矢印Cで示す如く回転して調整
する、又、よこ色ずれ調整はP点を通りミラー面に含ま
れ直線L1と直交する直線にはV等しい直線L2を回転
軸として矢印Bで示す如く回転して調整する。さらに、
倍率ずれ調整を行なう必要がある場合は、ミラー5を入
射光軸15と平行に矢印Aで示す如く平行移動して調整
する。FIG. 1 is a diagram schematically showing how to displace the mirror for adjusting color shift according to the present invention. The horizontal color shift adjustment is performed by rotating the straight line L1 included in the mirror surface and orthogonal to the optical axis 15 as the rotation axis as shown by the arrow C. The adjustment is performed by rotating the straight line L2, which is included and perpendicular to the straight line L1, as a rotation axis as shown by the arrow B, and the straight line L2 is equal to V. moreover,
If it is necessary to adjust the magnification shift, the mirror 5 is moved parallel to the incident optical axis 15 as shown by arrow A to make the adjustment.
ミラーを上述の如く変位可能に支持し、変位させて色ず
れ調整を行なう装置の実施例の構成を第2図、第3図及
び第4図に示す。FIGS. 2, 3, and 4 show the construction of an embodiment of an apparatus in which the mirror is movably supported as described above and is displaced to adjust color misregistration.
色ずれ調整装置300ば、複写機機枠16に対して光軸
15に平行移動可能な倍率調整部材310と、これに固
定された支持板306と、支持板306に対して前記直
線L2の回りに回動自在に支持されたよこ色ずれ調整板
(第2調整板)305と、よこ色ずれ調整板305の長
手方向の一方の端部に前記直線L 、の回りに回動自在
に軸支され、ミラー5の長手方向の一方の端部を一体的
に保持するだて色ずれ調整板(第1調整板)303と、
たて色ずれ調整板303を軸L1の回りに回転調整する
たて色ずれ調整つまみ308と、よこ色ずれ調整板30
5を支持板306に対して軸L2の回りに回転調整する
損色ずれ調整つまみ309、倍率調整部材310を機枠
16に対して光軸16と平行に変位させる倍率調整つま
み313とにより構成されている。The color shift adjustment device 300 includes a magnification adjustment member 310 that is movable parallel to the optical axis 15 with respect to the copying machine frame 16, a support plate 306 fixed to the magnification adjustment member 310, and a magnification adjustment member 310 that is movable in parallel to the optical axis 15 with respect to the copy machine frame 16, and a support plate 306 that is movable around the straight line L2 with respect to the support plate 306. A horizontal color shift adjustment plate (second adjustment plate) 305 is rotatably supported on the horizontal color shift adjustment plate 305, and a shaft is supported rotatably around the straight line L at one longitudinal end of the horizontal color shift adjustment plate 305. a color shift adjustment plate (first adjustment plate) 303 that integrally holds one end of the mirror 5 in the longitudinal direction;
A vertical color shift adjustment knob 308 that rotates and adjusts the vertical color shift adjustment plate 303 around the axis L1, and a horizontal color shift adjustment plate 30.
5 around the axis L2 with respect to the support plate 306, and a magnification adjustment knob 313 that displaces the magnification adjustment member 310 in parallel to the optical axis 16 with respect to the machine frame 16. ing.
ミラー5は第2図手前側(第3図、第4図の左側)の端
部の直線L1の両側の2点でミラー面を、たて色ずれ調
整板303に設けられた突起部3038゜303bに押
えばね302aにより押し付けられ、反対側の端部の直
線L1上の1点でミラー面をよこ色ずれ調整板305の
突起部305aに押えばね302bにより押し付けられ
ている。The mirror 5 has a mirror surface at two points on both sides of the straight line L1 at the end on the near side in FIG. 303b by a pressing spring 302a, and at one point on the straight line L1 at the opposite end, the mirror surface is pressed against the projection 305a of the horizontal color shift adjustment plate 305 by a pressing spring 302b.
たて色ずれ調整板303は直線L1上に設けられた回転
軸304により損色ずれ調整板305に対して軸支され
ており、直線り、を挾んでよこ色ずれ調整板305とた
て色ずれ調整板303との間に設けられた圧縮ばね31
5とたて色ずれ調整つまみ308とにより、直線L1の
回りに回転させることができ、これによりミラー5も直
線L1の回りに回転したて色ずれ調整を行なうことがで
きる。The vertical color shift adjusting plate 303 is pivotally supported by the rotary shaft 304 provided on the straight line L1 with respect to the loss color shift adjusting plate 305, and the vertical color shift adjusting plate 303 and the vertical color shift adjusting plate 303 are connected to each other by sandwiching the straight line. Compression spring 31 provided between displacement adjustment plate 303
5 and the vertical color shift adjustment knob 308, the mirror 5 can be rotated around the straight line L1, and thereby the mirror 5 can also be rotated around the straight line L1 to adjust the vertical color shift.
よこ色ずれ調整板305は中央部の上下両方に直線L2
」二に設けられた回転軸807a、307bにより支持
板306に支持されており、第3図において直線L2の
右側には支持板306との間に圧縮ばね316が、左側
にはよこ色ずれ調整つまみ309が設けられている。し
たがってよこ色ずれ調整つまみ309によりよこ色ずれ
調整板305を直線L2の回りに回動させ、たて色ずれ
調整板303を介してこれに保持されたミラー5を直線
L2の回りに回動させてよこ色ずれを調整することがで
きる。The horizontal color shift adjustment plate 305 has a straight line L2 both above and below the center part.
It is supported by the support plate 306 by rotating shafts 807a and 307b provided at the second side, and in FIG. A knob 309 is provided. Therefore, the horizontal color shift adjustment knob 309 rotates the horizontal color shift adjustment plate 305 around the straight line L2, and the mirror 5 held thereon via the vertical color shift adjustment plate 303 is rotated around the straight line L2. You can adjust the color shift.
倍率調整部材310は、第2図に示す如く2つの長孔a
ioa、atobを有し、これを貫通して機枠16にガ
イドビン811 a 、 3111)が植設され、その
拡大頭部と倍率調整部材310との間に設けた圧縮ばね
812a、812bにより機枠16に押圧された状態で
光軸15に平行に摺動可能となっている。倍率調整部材
310の第2図において右端と、その端部に対向して機
枠に固設された部材314との夫々に、倍率調整つまみ
313の軸の両側に切られた互いに逆方向のねじが螺合
している。したがって倍率調整つ壕み8Llを回すこと
により、倍率調整部材310をこれに保持されたミラー
5とともに光軸15の方向に移動させて倍率調整を行な
うことができる。The magnification adjustment member 310 has two long holes a as shown in FIG.
ioa and atob, through which guide bins 811a and 3111) are implanted in the machine frame 16, and compression springs 812a and 812b provided between the enlarged head and the magnification adjustment member 310 operate the machine. It can slide parallel to the optical axis 15 while being pressed against the frame 16. In FIG. 2, the right end of the magnification adjustment member 310 and a member 314 fixed to the machine frame opposite to that end are provided with screws cut in opposite directions on both sides of the axis of the magnification adjustment knob 313. are screwed together. Therefore, by turning the magnification adjustment recess 8Ll, the magnification adjustment member 310 can be moved along with the mirror 5 held therein in the direction of the optical axis 15 to adjust the magnification.
上記の色ずれ調整装置では、よこ色ずれ調整、たて色ず
れ調整の際、ミラーは入射光束の光軸とミラー面との交
点Pを通る直線を軸として回動されるので、光路長が変
化せず、倍率ずれに影響を与えることはない。したがっ
て、調整のためのミラー回転中心位置精度を十分高くし
ておけば、倍率調整を省略することができる。In the above color shift adjustment device, when adjusting horizontal color shift and vertical color shift, the mirror is rotated about a straight line passing through the intersection point P between the optical axis of the incident light beam and the mirror surface, so the optical path length is It does not change and does not affect the magnification shift. Therefore, if the accuracy of the mirror rotation center position for adjustment is made sufficiently high, magnification adjustment can be omitted.
上記実施例のミラーを一体的に支持するたて色ずれ調整
板303、よこ色ずれ調整板805及び支持板306は
、いわゆるジンバル機構(複吊環支持機構)を構成して
おり、これによってミラー5上の1点Pの位置を一定点
に保持して任意の方向に傾斜可能としたものである。The vertical color shift adjustment plate 303, the horizontal color shift adjustment plate 805, and the support plate 306 that integrally support the mirror of the above embodiment constitute a so-called gimbal mechanism (double suspension ring support mechanism), and thereby the mirror 5 The position of one point P on the top is held constant and can be tilted in any direction.
このような支持方法においては、従来一般に支持物(こ
の例ではミラー5)はその両端を直線L1に軸心が一致
するピン(304)で軸支するようにしているため、た
て色ずれ調整板80Bはミラー5の両側に設けるか、あ
るいはミラーの全周を囲繞する環状部材として構成する
必要があり、部品点数が増加し、所要スペースが増大す
る欠点があった。In this type of support method, the support object (mirror 5 in this example) is generally supported at both ends by pins (304) whose axis coincides with the straight line L1, so it is difficult to adjust the vertical color shift. The plate 80B needs to be provided on both sides of the mirror 5 or formed as an annular member surrounding the entire circumference of the mirror, which has the drawback of increasing the number of parts and increasing the space required.
本実施例では、ミラー5を直線L1 の回りに回動自在
にする機構として、ミラー5の長手方向(直線Llの方
向)の一方の端部を直線L1の両側の2点でたて色ずれ
調整板303上の2点808a 。In this embodiment, as a mechanism for making the mirror 5 freely rotatable around the straight line L1, one end of the mirror 5 in the longitudinal direction (direction of the straight line L1) is vertically aligned at two points on both sides of the straight line L1. Two points 808a on the adjustment plate 303.
803bKばねで押圧して一体的に支持し、他方の端部
は直線り、上の一点でよこ色ずれ調整板305上の1点
305aにばねで押圧して、点805aの回りに回動自
在に支持した構成としたので、部品の点数が減少し、調
整装置の占有スペースも小さくて済む利点が得られる。803bK is pressed by a spring and supported integrally, the other end is straight, and one point on the top is pressed by a spring to a point 305a on the horizontal color shift adjustment plate 305, so that it can freely rotate around the point 805a. Since the adjustment device is supported in a configuration in which the adjustment device is supported, the number of parts is reduced, and the space occupied by the adjustment device is also reduced.
効果
以上の如く、本発明によれば、たて色ずれ調整及びよこ
色ずれ調整により倍率ずれに影響を与えることがないの
で、最初に倍率ずれの調整を行なった後、たて色ずれ調
整及びよこ色ずれ調整を行なえば、容易に色ずれ調整が
でき、調整の手数が従来より大幅に減少する。又、調整
のだめのミラーの回転中心位置精度を確保しておけば、
倍率ずれ調整を省略することも可能である。Effects As described above, according to the present invention, the vertical color shift adjustment and the horizontal color shift adjustment do not affect the magnification shift, so after adjusting the magnification shift first, the vertical color shift adjustment and the horizontal color shift adjustment are performed. If the horizontal color shift adjustment is performed, the color shift can be easily adjusted, and the number of steps required for adjustment is significantly reduced compared to the conventional method. Also, if you ensure the accuracy of the rotation center position of the mirror for adjustment,
It is also possible to omit the magnification shift adjustment.
第1図は本発明による色ずれ調整装置の原理を説明する
図式図、第2図は本発明の実施例を示す縦断面図、第3
図は第2図の矢印111−N方向に見た上面図、第4図
はその長手方向両端部を示す斜視図、第5図乃至第9図
は2色複写機の色ずれの概念を説明するための図式図、
第10図及び第11図は従来の色ずれ調整方法の一例を
示す斜視図である。
1・・・結像レンズ 2・・・光束分割手段5・・
・ミラー 8,9・・・感光体ドラム300・
・・色ずれ調整装置
802a、802b・・・ミラー押えばね803・・・
たて色ずれ調整板(第1調整板)aoaa 、808b
・・・ミラー支持点305・・・よこ色ずれ調整板(第
2調整板)305a・・・ミラー支持点
306・・・支持板FIG. 1 is a schematic diagram explaining the principle of the color misregistration adjusting device according to the present invention, FIG. 2 is a longitudinal sectional view showing an embodiment of the present invention, and FIG.
The figure is a top view seen in the direction of arrow 111-N in Figure 2, Figure 4 is a perspective view showing both ends in the longitudinal direction, and Figures 5 to 9 explain the concept of color misregistration in a two-color copying machine. Schematic diagram for
FIGS. 10 and 11 are perspective views showing an example of a conventional color shift adjustment method. 1... Imaging lens 2... Light beam splitting means 5...
・Mirrors 8, 9...Photosensitive drum 300・
...Color shift adjustment devices 802a, 802b...Mirror pressing spring 803...
Vertical color shift adjustment plate (first adjustment plate) aoaa, 808b
...Mirror support point 305...Horizontal color shift adjustment plate (second adjustment plate) 305a...Mirror support point 306...Support plate
Claims (3)
透過させた後、光束分割手段により一定の割合で透過光
束と反射光束とに分割し、分割された光束を夫々別の感
光体面に結像させ、感光体面に所定のプロセスで形成さ
れた各色画像に対応する潜像を異る色のトナーで現像し
、同一の転写紙に重ね合せて転写する二色複写機の色ず
れ調整装置において、上記光束分割手段の後方にある一
つのミラーに対してたて色ずれ調整機構とよこ色ずれ調
整機構とを設け、上記たて色ずれ調整機構は該ミラーへ
の入射光軸と該ミラーの反射面との交点Pを通り、該反
射面に含まれ前記光軸と直交する直線L_1を回転軸と
して該ミラーを回転調整可能に構成され、上記よこ色ず
れ調整機構は前記の点Pを通り前記ミラーの反射面に含
まれ前記直線L_1と直交する直線にほゞ等しい直線L
_2を回転軸として該ミラーを回転可能に構成されてい
ることを特徴とする色ずれ調整装置。(1) After the slit-shaped light beam reflected from the original passes through the imaging lens, the light beam splitting means divides it into a transmitted light beam and a reflected light beam at a fixed ratio, and each of the divided light beams is focused on a separate photoreceptor surface. In a color shift adjustment device for a two-color copying machine, which develops latent images corresponding to each color image formed on the surface of a photoreceptor in a predetermined process with toner of different colors, and transfers them onto the same transfer paper in an overlapping manner. , a vertical color shift adjustment mechanism and a horizontal color shift adjustment mechanism are provided for one mirror located behind the light beam splitting means, and the vertical color shift adjustment mechanism adjusts the angle between the optical axis of incidence on the mirror and the reflection of the mirror. The mirror is configured to be rotatably adjustable with a straight line L_1 included in the reflecting surface and perpendicular to the optical axis passing through the intersection point P with the surface, and the horizontal color shift adjustment mechanism passing through the point P and being perpendicular to the optical axis. A straight line L that is included in the reflective surface of the mirror and is approximately equal to the straight line that is perpendicular to the straight line L_1.
A color shift adjustment device characterized in that the mirror is configured to be rotatable with _2 as a rotation axis.
線L_1及びL_2の回りに回転調整可能とする機構が
該ミラーを一体的に保持する第1調整板と、該第1調整
板を上記直線L_1の回りに回動自在に支持する第2調
整板と、該第2調整板を上記直線L_2の回りに回動自
在に軸支するとともに複写機々枠の所定の位置に固定可
能な支持板とを有することを特徴とする特許請求の範囲
第1項に記載の色ずれ調整装置。(2) A mechanism that allows the mirror to rotate around the straight lines L_1 and L_2 passing through point P and intersecting each other at right angles includes a first adjustment plate that integrally holds the mirror; a second adjustment plate rotatably supported around the straight line L_1; a support that supports the second adjustment plate rotatably around the straight line L_2 and fixed at a predetermined position of the copying machine frame; The color shift adjustment device according to claim 1, further comprising a plate.
端部で上記直線L_1の両側にある2点を上記第1調整
板にスプリングにより押圧支持され、他方の端部の直線
L_1上の一点を第2調整板にスプリングにより押圧支
持されていることを特徴とする特許請求の範囲第2項に
記載の色ずれ調整装置。(3) The above-mentioned mirror is supported by a spring on the first adjustment plate at two points on both sides of the above-mentioned straight line L_1 at one end in a direction parallel to the straight line L_1, and at the other end on the straight line L_1. 3. The color misregistration adjusting device according to claim 2, wherein one point is supported by the second adjusting plate under pressure by a spring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59138881A JPS6118978A (en) | 1984-07-06 | 1984-07-06 | Color deviation adjusting device of two-color copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59138881A JPS6118978A (en) | 1984-07-06 | 1984-07-06 | Color deviation adjusting device of two-color copying machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6118978A true JPS6118978A (en) | 1986-01-27 |
Family
ID=15232292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59138881A Pending JPS6118978A (en) | 1984-07-06 | 1984-07-06 | Color deviation adjusting device of two-color copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6118978A (en) |
-
1984
- 1984-07-06 JP JP59138881A patent/JPS6118978A/en active Pending
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