JPS58137872A - Erasing device of inter-image latent image of copying machine - Google Patents
Erasing device of inter-image latent image of copying machineInfo
- Publication number
- JPS58137872A JPS58137872A JP2030282A JP2030282A JPS58137872A JP S58137872 A JPS58137872 A JP S58137872A JP 2030282 A JP2030282 A JP 2030282A JP 2030282 A JP2030282 A JP 2030282A JP S58137872 A JPS58137872 A JP S58137872A
- Authority
- JP
- Japan
- Prior art keywords
- discharge tube
- light
- latent image
- image
- inter
- 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
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 108091008695 photoreceptors Proteins 0.000 abstract description 8
- 230000007423 decrease Effects 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 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
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/045—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas
- G03G15/047—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas for discharging non-image areas
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
詳述すれば，Ｉｌ写機の操作においてｌｉｅ間の潜儂を
消去して，得られるコピーの先端に黒色部が生じないよ
うにした鋏テに関する。DETAILED DESCRIPTION OF THE INVENTION To be more specific, the present invention relates to a scissor tip that eliminates the latent information between the lie and the lie in the operation of an Il photocopying machine so that a black portion does not appear at the leading edge of the resulting copy.
典型的な祷写機の操作においては、ｔｌＬｌ図に示すよ
うに，グラテングラス２上に載デされた原稿１が、適当
な光学手段（第１図に示す場合においては、照明装置Ｆ
４とセルフォックレンズ５とから成る）を介して感光体
６に投影されて、原稿の情報に応じた静電潜會が＃感光
体上に形成される。In the operation of a typical copying machine, as shown in FIG.
4 and SELFOC lens 5) onto the photoreceptor 6, and an electrostatic latent field corresponding to the information on the document is formed on the photoreceptor.
しかして、該潜曹は適当な現像装着７を用いて現倫され
た後，現倫後の惨は転写・剥離装ｆ＊８によって他の支
持体に転写され、一方，感光体６はクリーニング装置９
によって清浄にされる。After the coating is developed using a suitable developing device 7, the image after developing is transferred to another support by a transfer/separator f*8, while the photoreceptor 6 is cleaned. Device 9
cleansed by
上記のごとき複写操作において，Ｊｌ稿１と，浄福の位
買決めを行なうレジストガイド３との間に隙間があると
，鋏隙間に応じた陰影が感光体に投影されて，その結果
，＃終的に得られるコピーの先端部に黒色部（黒筋）が
現われることになる。In the copying operation as described above, if there is a gap between the Jl draft 1 and the registration guide 3 that performs the purchasing of the blessings, a shadow corresponding to the gap between the scissors is projected onto the photoreceptor, and as a result, # A black area (black streak) will appear at the leading edge of the copy obtained.
このような現象を防止する対策として、リードエッヂ先
端付近のプラテングラス２の上面や下面に白色のテープ
を付けることによって、コピーの先端部を白色化する試
みも行なわれているが、照明装ｇＩによってはテープに
よる影が生じ所望の目的を大分に果たしていない。別の
対策として、インターイメージランプ（画僧間潜倫消去
装置１：ｌＩＬと略称される）と称される光源１０を用
いて、感膏体に光を照射して、紬述したような原稿とレ
ジストガイドとの隙間の陰影に起因する潜像を消去し、
これＫよって、得られるコピーの先端部を白色化して黒
筋が現われないようｋしている。As a measure to prevent this phenomenon, attempts have been made to whiten the leading edge of the copy by attaching white tape to the top and bottom surfaces of the platen glass 2 near the leading edge of the lead edge. In some cases, the tape creates a shadow and does not serve the desired purpose. As another measure, a light source 10 called an inter-image lamp (abbreviated as IL) can be used to irradiate the plaster with light to erase the manuscript as described above. erases the latent image caused by the shadow in the gap between the resist guide and the resist guide,
As a result, the leading edge of the resulting copy is whitened to prevent black streaks from appearing.
しかしながら、従来からＩＩＬとして使用されているラ
ングは、螢光体を内面に塗布した放電管やタングステン
ランプから成り、ラジデへの入力を停止した後において
も光景が完全に稍滅するまでの時間が長いため、必要以
上にコピーの先端部を白色化してしまうという欠点を有
していた。例えば、得られるコピーの先端部に相当する
個所にコル３簡の幅で光を照射して上記のごとき陰影に
起因する潜像のみを消去し・ようとしても、実「には該
先端部に！ｍ前後にわたって光が照射され、先端部近傍
に存する接写しようとする１倫そのものの濃度が低下し
て一ケた像になってしまう。However, the rung conventionally used as an IIL consists of a discharge tube or tungsten lamp with a phosphor coated on the inside, and it takes a long time for the scene to completely disappear even after the input to the radio is stopped. Therefore, the leading edge of the copy is whitened more than necessary. For example, even if you try to erase only the latent image caused by the shadows mentioned above by irradiating light with a width of three columns on the area corresponding to the leading edge of the resulting copy, in reality it will not be possible to erase the latent image caused by the shadow. The light is irradiated over a distance of approximately !m, and the density of the lens itself near the tip, which is to be photographed in close-up, decreases, resulting in a single-digit image.
そこで１本発明の目的は、上述のごとき従来技術におけ
る欠点を是正し、コピーの先ｆａ＃ｌに覗われる黒色部
を確実に消去し、しかも、複写しようとする１僑には影
響を与えない画債間ｉｗ像消去装蟹を提供することにあ
る。Therefore, an object of the present invention is to correct the above-mentioned drawbacks in the prior art, to reliably erase the black part visible on the destination FA#l of copying, and to do so without affecting the person attempting to copy. The purpose is to provide an IW image erasing crab between art bonds.
本発明は、ＩＩ光体を塗布せずがスのみの発体による放
電管は、入力を停止すれば即座に光量を低下させ残光を
発しないという性質を有し、そのような放電管を複写機
の画像間潜９消去装置として利用すれば、コピーの先端
部の黒色部を確実１つ鋭敏に除去し得るという事実を見
出したことに基づく。The present invention has the property that a discharge tube with only a gas light source without coating with a II light body has the property that when the input is stopped, the light intensity immediately decreases and no afterglow is emitted. This is based on the discovery that when used as an inter-image gap erasing device for a copying machine, one black portion at the leading edge of a copy can be accurately and accurately removed.
かくして１本発明に従えば、１１光体を塗布していない
ガスのみの発光による放雷管を光源として用いたことを
特徴とする複写機の画俸間潜僧消去装曾が提供される。Thus, according to one aspect of the present invention, there is provided a device for erasing the space between the drawings of a copying machine, which is characterized in that it uses a detonator that emits only gas and is not coated with a light source as a light source.
以下、図面に沿って本発明を更に説明する。The present invention will be further described below with reference to the drawings.
前述のように、本発明のＹｌ！Ｉ１ｇＩ間潜儂消去装貴
において用いられる放電管は、該放電管への入力を停止
すれば即座に光量が低下するという性質を有する。第３
１！’Ｉは、そのような様子を示すもので。As mentioned above, Yl! of the present invention! The discharge tube used in the I1gI latent image erasing device has a property that the amount of light immediately decreases when input to the discharge tube is stopped. Third
1! 'I' indicates such a situation.
従来の螢光体を塗布した放電管の場合（図中、記号イで
示す）においては、入力を停止した時（図中、Ａで示す
点）から噺次光量が低下してゆくのに対し、本発明にお
いて用いられる螢光体を塗布していないガスのみの発光
による放電管の場合（図中、記号口で示す）、入力を停
止するとはぼ即時的に光量が低下する。ちなみに、入力
を停止した時の光量の立ち下がりは、従来の螢光体を用
いた放雷管の場合はりＱ ｍ５ｅｃ 程度であるのに対
し、螢光体を有しない放電管の場合は約へ４ｍｓ＠ｃで
ある。In the case of a conventional discharge tube coated with fluorescent material (indicated by symbol A in the figure), the continuous light intensity decreases from the time the input is stopped (point A in the figure). In the case of the discharge tube used in the present invention that emits only gas and is not coated with a phosphor (indicated by a symbol in the figure), the amount of light decreases almost immediately when the input is stopped. By the way, the fall in the light intensity when the input is stopped is about Q m5ec in the case of a detonator using a conventional phosphor, whereas it takes about 4 ms in the case of a discharge tube without a phosphor. @c.
かくして１本発明の好ましい実施例に従えば螢光体を塗
布しない放電管を適当なハウジング内に収容して放電管
から発生する光が集中的に照射され得るような構成から
成る画會間潜儂装置が提供される。第２図は、そのよう
な本発明の装置の具体側を示すものである。同図に示す
装置においては、ハウジング１６内に放電管１３を配置
し、感光体６０回転方向側のハウジング内面１１を黒色
、白色または鏡面とし１面１１に対向する内面１２を黒
色としている。１５は直流電瀞、１４はスイッチである
。また、１６は光を照射するための開口である。この光
照射用開口のＳｔＷは、消去しようとする先端部潜像の
幅に応じて定められる。このように構成された本発明の
潜像消去装置から照射される光は、第ｑ図に示すように
、光量分布（図中、実線で示す）が 従来の消去装ｆｌ
Ｋおける光量分布（図中、破線で示す）Ｋ比べて集中的
で、特に、内面１１に相当する端部の光量の立ち上がり
が鋭いという特徴を有する。なお、第一図に示す実施例
においては、放電管の電源として直流電源を用いている
が、交流電源を使用することもでき、この場合は、端部
の光量の立ち上がりの鋭さが着干劣るが実用上はさした
る影響な与えないＯ
このように本発明の潜偉消去笑壷は大をきわめて集中的
に照射するので、コピーの先端部に対応する個所のｉＷ
骨を効果的に消去することができる。Thus, in accordance with a preferred embodiment of the present invention, there is provided an inter-picture chamber constructed in such a way that a discharge tube without phosphor coating is housed in a suitable housing so that the light emitted from the discharge tube can be irradiated in a concentrated manner. My equipment is provided. FIG. 2 shows the concrete side of such an apparatus of the present invention. In the device shown in the figure, a discharge tube 13 is disposed within a housing 16, and the inner surface 11 of the housing on the side in the rotational direction of the photoreceptor 60 is black, white, or mirror-finished, and the inner surface 12 facing the first surface 11 is black. 15 is a DC current conductor, and 14 is a switch. Further, 16 is an aperture for irradiating light. StW of this light irradiation aperture is determined according to the width of the tip latent image to be erased. As shown in Fig. q, the light emitted from the latent image erasing device of the present invention configured in this way has a light amount distribution (indicated by a solid line in the figure) that is similar to that of the conventional erasing device fl.
The light intensity distribution at K (indicated by a broken line in the figure) is more concentrated than K, and is characterized by a particularly sharp rise in the light intensity at the end corresponding to the inner surface 11. In the embodiment shown in Figure 1, a DC power source is used as the power source for the discharge tube, but an AC power source can also be used, but in this case, the sharpness of the rise in the amount of light at the end will be less sharp. However, it does not have a significant effect in practice.As described above, since the inkjet erasing pot of the present invention irradiates the large area very intensively, the iW of the area corresponding to the leading edge of the copy is
Bones can be effectively erased.
すなわち１本発明の弊νを用いれば、コピーの先端部に
相当する微少１１！［（通常、−〜３１ｎ）を確実に白
色化するとともに、複写しようとする面憎そのもの濃度
に影響を与えることはない。￥３図は、このような効果
を卸、明するためのもので、真黒のＷｓを複写した場合
におけるコピーの先端部付近の濃度変化を宇量的に示し
ている。同図から理解されるように１本発明の装置を用
いて得られるコピー（図中、実線で示す）は、前述した
ような従来の装置を用いて得られるコピー（図中、破線
で示す）とは対照的に、コピー先端（図中、Ｂで示す）
から一定幅で確実に白色化されるとともに該白色域と本
来的な画偉域との境界が峻別されている。In other words, if we use the disadvantage ν of the present invention, the minute 11 which corresponds to the leading edge of a copy! [(usually -~31n) is reliably whitened, and the color itself to be copied does not affect the density. The figure ¥3 is intended to explain such an effect, and graphically shows the change in density near the leading edge of a copy when a jet black Ws is copied. As can be understood from the figure, a copy obtained using the apparatus of the present invention (indicated by a solid line in the figure) is different from a copy obtained using the conventional apparatus as described above (indicated by a broken line in the figure). In contrast, the copy tip (indicated by B in the figure)
The white area is reliably whitened within a certain width, and the boundary between the white area and the original image area is sharply distinguished.
ｔＰ−／ジ１は、本発明の装置が適用される複写枦の典
型ｆ′１を概示する側面図であり。
第一図は、本発明の装置の実施例と、その使用の様子を
示す側面図であり、
第３図、第９図、および舘３図は、本発明の畦臂の効果
を説明するためのグラフである。
１；原稿、 ２：ｆラテングラス、 ６：感光体、
１０：面憎間潜俊消去装置、 １３：放電管。
第１図
第２図
第３図
ＦＩＪｆ−
第４図
第５図
肴さ乃廚tP-/J1 is a side view schematically showing a typical copying frame f'1 to which the apparatus of the present invention is applied. Figure 1 is a side view showing an embodiment of the device of the present invention and how it is used. Figures 3, 9, and 3 are for explaining the effect of the ridge of the present invention. This is a graph of 1: Manuscript, 2: Latin glass, 6: Photoreceptor,
10: Face-hate and hidden-shun erasing device, 13: Discharge tube. Figure 1 Figure 2 Figure 3 FIJf- Figure 4 Figure 5 Appetizers
Claims (1)
光源として用いたことを特徴とする祷写櫓の画俊間潜倫
消去装置。This device is characterized by using a discharge tube, which is not coated with phosphor but only emits light, as a light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2030282A JPS58137872A (en) | 1982-02-10 | 1982-02-10 | Erasing device of inter-image latent image of copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2030282A JPS58137872A (en) | 1982-02-10 | 1982-02-10 | Erasing device of inter-image latent image of copying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58137872A true JPS58137872A (en) | 1983-08-16 |
Family
ID=12023349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2030282A Pending JPS58137872A (en) | 1982-02-10 | 1982-02-10 | Erasing device of inter-image latent image of copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58137872A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0428900A2 (en) * | 1989-10-26 | 1991-05-29 | Konica Corporation | Electrostatic recording apparatus |
-
1982
- 1982-02-10 JP JP2030282A patent/JPS58137872A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0428900A2 (en) * | 1989-10-26 | 1991-05-29 | Konica Corporation | Electrostatic recording apparatus |
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