JPS60229038A - Copying machine - Google Patents

Copying machine

Info

Publication number
JPS60229038A
JPS60229038A JP59083999A JP8399984A JPS60229038A JP S60229038 A JPS60229038 A JP S60229038A JP 59083999 A JP59083999 A JP 59083999A JP 8399984 A JP8399984 A JP 8399984A JP S60229038 A JPS60229038 A JP S60229038A
Authority
JP
Japan
Prior art keywords
opening
paper
magnet
guide plate
support plate
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
Application number
JP59083999A
Other languages
Japanese (ja)
Inventor
Fumio Komuro
古室　文男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox Co Ltd
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 by Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP59083999A priority Critical patent/JPS60229038A/en
Publication of JPS60229038A publication Critical patent/JPS60229038A/en
Pending 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
    • 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
    • G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
    • G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
    • G03G15/1665—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat
    • 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"
    • G03G2215/00409—Transfer 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
    • G03G2215/00607—Debris handling means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Paper Feeding For Electrophotography (AREA)

Abstract

PURPOSE:To remove a metallic piece at the front stage part of a photosensitive body and to prevent an accident such as damage to the photosensitive body by providing a magnet for metallic piece removal in the middle of the form conveyance path of the copying machine. CONSTITUTION:An opening 11 is formed in an upper guide plate 10 between a drum 1 and a register roller 8 in the conveyance path and this opening 11 may e bored by punching a guide plate to specific size. A support plate 12 is fitted to the downstream side of said opening 11 in the conveyance direction. The support plate 12 is bent as shown in a figure, its horizontal part is fixed to the reverse surface of the guide plate 10, and the magnet 13 is fixed to the top surface of the part which is fitted slanting upward from the horizontal part. The slanting part of the support plate 12 is provided opposite in the conveyance direction of forms, which are then prevented from jumping out of the opening.

Description

【発明の詳細な説明】 （利用分野） 本発明は、用紙搬送路内に侵入した微小な金属片を、感
光体の前段部で除去し得るようにした複写機に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Application) The present invention relates to a copying machine in which minute metal pieces that have entered a paper conveyance path can be removed at a front stage of a photoreceptor.

（従来技術） 複写機において、コピー用紙の搬送路内に落下したり、
用紙に付着してホッチキスの針やクリップ等の鉄製の微
小な磁性金属片が侵入してくると、それが感光体やヒー
トローラに傷をつける原因となるために、このような金
属片を除去する必要がある。(Prior art) In a copying machine, copy paper may fall into the conveyance path,
If small magnetic metal pieces such as staplers or paper clips adhere to the paper and enter, they can damage the photoreceptor or heat roller, so remove these metal pieces. There is a need to.

また、感光体を構成するドラムやヒートローラ等の部材
は、複写機の部品の内では最も高価なものであり、これ
を取り替えることは非常に費用のかかることである。し
たがって、感光体には、用紙以外のものは接触しないよ
うにすることが必要となる。Furthermore, the drums, heat rollers, and other members constituting the photoreceptor are the most expensive parts of a copying machine, and replacing them is extremely expensive. Therefore, it is necessary to prevent anything other than paper from coming into contact with the photoreceptor.

そこで、従来の複写機においては、カバーのヒンジ部分
等にマグネットを設けておき、これらの金属片を除去す
る等の手段が用いられているものもあるが、搬送路には
何も対策はとられていないのが現状である。Therefore, in some conventional copying machines, measures such as installing magnets on the hinge parts of the cover and removing these metal pieces are used, but no countermeasures are taken on the conveyance path. The current situation is that this is not the case.

したがって、前記したような従来の装置においては、最
初から用紙に付着している金属片が機内に侵入すること
はオペレータの注意によって防止できるとしても、紙詰
まりの処置時やメンテナンス作業中に機内に落下した金
属片などは、取り除くことができない。そして、前記し
たような金属片によって感光体に傷がついたりする事故
の発生を防止することが困難であり、時には、前記した
ように小さな金属片によって感光体が損傷し、高価な感
光体を取替えるなどの不都合な事態が発生し易いもので
あった。Therefore, in conventional devices such as those described above, even if it is possible to prevent metal pieces that are attached to the paper from entering the machine by the operator's caution, metal pieces that are attached to the paper from the beginning can be prevented from entering the machine when dealing with paper jams or during maintenance work. Fallen metal pieces cannot be removed. It is difficult to prevent the occurrence of accidents such as scratches on the photoreceptor caused by metal pieces as described above, and sometimes the photoreceptor is damaged by small metal pieces as described above, resulting in the need for expensive photoreceptors. It was easy for inconvenient situations such as having to be replaced to occur.

（目的） 本発明は、複写機の用紙搬送路の途中に金属片除去のた
めのマグネットを設けることによって、感光体の前段部
で金属片を除去し得るようにして、感光体の損傷する事
故を防止することを目的とする。(Purpose) The present invention provides a magnet for removing metal pieces in the middle of the paper conveyance path of a copying machine, thereby making it possible to remove metal pieces at the front stage of the photoreceptor, thereby preventing damage to the photoreceptor. The purpose is to prevent

（構成） 本発明の複写機は、用紙の搬送路を構成するガイド板の
レジスターローラと感光体の間に設けられる部分に開口
を形成し、この開口に端部を固定し、他端部を用紙の搬
送方向に向かって上向きに傾斜した状態で支持板を取り
つけている。そして、この支持板の傾斜した部分にマグ
ネットを取付け、用紙搬送路内を用紙とともに運ばれて
くる金属片をマグネットによって吸着するようにしてい
る。(Structure) In the copying machine of the present invention, an opening is formed in a portion of a guide plate that constitutes a paper conveyance path between a register roller and a photoreceptor, one end is fixed to this opening, and the other end is fixed to the opening. The support plate is attached so as to be inclined upward in the paper conveyance direction. A magnet is attached to the inclined portion of this support plate, so that the metal pieces carried along with the paper along the paper transport path are attracted by the magnet.

したがって、用紙に付着して運ばれて来たり、または、
その搬送路の途中に落下して侵入するホッチキスの針や
、その他の小さな磁性を有する金属片等を確実に吸着し
て、用紙搬送路から除去できることになるから感光体に
はこれらの金属片は運ばれることはなくなり感光体を安
全に保護することを可能にする。Therefore, it may be attached to paper and transported, or
This means that staples and other small magnetic metal pieces that fall and enter the paper transport path can be reliably attracted and removed from the paper transport path, so these metal pieces cannot be placed on the photoreceptor. The photoreceptor is no longer carried around and can be safely protected.

（実施例） 第１図に示すように、複写機の感光体として設けられる
ドラム１の周囲には、チャージコロトロン２、現像部３
、転写コロトロン４、剥離爪５およびクリーナー６が設
けられている。そして、ドラム１の表面にチャージコロ
トロン２によって予め帯電させておき、原稿の読みとり
画像を露光させて潜像を形成させ、次いで、この潜像に
現像部３でトナーを供給して現像し、レジスターロー５
８によって搬送されてくる用紙上に転写コロトロン４に
よって転写する。(Embodiment) As shown in FIG. 1, a charge corotron 2, a developing section 3
, a transfer corotron 4, a peeling claw 5, and a cleaner 6 are provided. Then, the surface of the drum 1 is charged in advance by a charge corotron 2, and a read image of the original is exposed to light to form a latent image, and then this latent image is developed by supplying toner to the developing section 3. register row 5
The transfer corotron 4 transfers the image onto the paper conveyed by the transfer corotron 8 .

また、この感光体１に用紙を搬送するための搬送路は上
下をガイド板１０で規制したガイド７を設けている。Further, a conveying path for conveying paper to the photoreceptor 1 is provided with a guide 7 whose upper and lower sides are regulated by guide plates 10 .

そして、この搬送路のドラム１とレジスターローラ８と
の間の上方のガイド板１０に開口１１を形成している。An opening 11 is formed in the guide plate 10 above the conveyance path between the drum 1 and the register roller 8.

この開口１１は、ガイド板を打抜いて、所定の大きさの
開口として形成してもよいが、この他に２枚のガイド板
を所定の間隔をおいて取りつけることによって形成する
ことも可能である。The opening 11 may be formed as an opening of a predetermined size by punching out a guide plate, but it can also be formed by attaching two guide plates at a predetermined interval. be.

このガイド板１０に形成した開口１１の搬送方向の下流
側に支持板１２を取りつける。支持板１２は、第２．３
図に示すように、略くの字状に曲げられていて、その水
平−な部分をガイド板１０の下面に固定し、この水平な
部分から上向きに傾斜して取りつけられる部分の上面に
は、マグネット１３を固定している。この支持板１２の
傾斜部は、用紙の搬送方向に対向するように設けられて
いるが、これは、用紙が開口から外に飛出さないように
するためである。A support plate 12 is attached to the downstream side of the opening 11 formed in this guide plate 10 in the conveyance direction. The support plate 12 is
As shown in the figure, it is bent into a dogleg shape, and its horizontal part is fixed to the lower surface of the guide plate 10, and the upper surface of the part that is attached to the guide plate 10 tilts upward from the horizontal part. The magnet 13 is fixed. The inclined portion of the support plate 12 is provided so as to face the paper conveyance direction, and this is to prevent the paper from flying out from the opening.

マグネット１３は、金属製のものでも良いがゴム磁石の
ようなフレキシブルなものを用紙搬送路を横切るように
して、支持板の傾斜した部分に貼付して用いると、その
取付けが容易であり、効果を十分に発揮させることにな
る。The magnet 13 may be made of metal, but if a flexible material such as a rubber magnet is attached to the inclined part of the support plate so as to cross the paper conveyance path, it will be easier to attach and more effective. will be fully demonstrated.

また、用紙とともに運ばれてくる金属片は、用紙の上に
あるもののみが直接ドラム１の表面に接触することにな
るために、この様な金属片のみを除去すれば良いことに
なる。しかしながら、用紙の下面に付着して運ばれてく
るものも、ヒートローラ９等には影響を与えることにな
るのであるから、これを除去するために、搬送路の下面
を構成するガイド板にもスリットなどの開口を形成して
、金属片が自然に落下するようにするか、または、前記
マグネット１３に対応して、搬送路の下面に開口等を介
して取付けたマグネットによって、取り除くことも必要
になる。そして、マグネットに付着した微小金属片は、
複写機の点検時等に取除くことにより、機外に排出でき
ることになるから、マグネットに多量に溜った金属片が
ふたたび用紙とともに搬送されて、ドラムに接触する等
の事故の発生は、防止されることになる。Further, among the metal pieces carried along with the paper, only those on the paper come into direct contact with the surface of the drum 1, so it is only necessary to remove such metal pieces. However, the material that adheres to the bottom surface of the paper and is carried will also affect the heat roller 9, etc., so in order to remove this material, the guide plate that forms the bottom surface of the conveyance path is also It is also necessary to remove the metal pieces by forming an opening such as a slit to allow them to fall naturally, or by using a magnet attached to the lower surface of the conveyance path through an opening or the like in correspondence with the magnet 13. become. The minute metal pieces attached to the magnet are
By removing it when inspecting the copying machine, it can be discharged outside the machine, which prevents accidents such as a large amount of metal fragments accumulated in the magnet being transported with the paper again and coming into contact with the drum. That will happen.

（効果） 本発明の複写機は、上２したように、用紙搬送路内に侵
入した微小金属片をドラムの前段部で除去することを可
能にするものであるから、用紙とともに運ばれてきたホ
ッチキスの針等がドラムやヒートローラに接触して、高
価なドラムやローラの表面に傷をつけたりする事故は確
実に防止できることになり、これによって、複写機のメ
ンテナンスのコストを引下げることを可能にする。(Effects) As mentioned in Part 2 above, the copying machine of the present invention makes it possible to remove minute metal pieces that have entered the paper transport path at the front stage of the drum, so that they can be removed along with the paper. Accidents such as staples, etc. coming into contact with the drum or heat roller and damaging the expensive drum or roller surface can be reliably prevented, thereby reducing copying machine maintenance costs. Make it.

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

第１図は、本発明の複写機の構成を示す側面図、第２図
および第３図は、マグネット取付は部の構成を示す断面
図と、斜視図である。 図中の符号 １・・・・・・感光体ドラム、　２・・・・・・チャー
ジコロトロン、　３・・・・・・現像部、　４・・・・
・・転写コロトロン、５・・・・・・剥離爪、　６・・
・・・・クリーナー、　７・・・・・・ガイド、　８・
・・・・・レジスターローラ、　９・・・・・・ヒート
ローラ、　１０・・・・・・ガイド板、　１１・・・・
・・開口、　１２・・・・・・支持板、　１３・・・・
・・マグネット、（ばか］名ンFIG. 1 is a side view showing the structure of a copying machine according to the present invention, and FIGS. 2 and 3 are a sectional view and a perspective view showing the structure of a magnet mounting section. Reference numeral 1 in the figure: photosensitive drum, 2: charge corotron, 3: developing section, 4:...
...Transfer corotron, 5...Peeling claw, 6...
...Cleaner, 7...Guide, 8.
... Register roller, 9 ... Heat roller, 10 ... Guide plate, 11 ...
...Opening, 12...Support plate, 13...
...Magnet, (stupid) name

Claims (1)

【特許請求の範囲】[Claims] 感光体とレジスターローラとの間の用紙搬送路のガイド
板に開口を形成し、この開口に用紙の送り方向に向かっ
て上向きに傾斜した状態でマグネットを取付け、このマ
グネットにより、微小ｉ性金属片を吸着して、除去し得
るようにしたことを特徴とする複写機。An opening is formed in the guide plate of the paper conveyance path between the photoconductor and the register roller, and a magnet is attached to this opening in an upwardly inclined state toward the paper feeding direction. A copying machine characterized by being able to adsorb and remove.
JP59083999A 1984-04-27 1984-04-27 Copying machine Pending JPS60229038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59083999A JPS60229038A (en) 1984-04-27 1984-04-27 Copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59083999A JPS60229038A (en) 1984-04-27 1984-04-27 Copying machine

Publications (1)

Publication Number Publication Date
JPS60229038A true JPS60229038A (en) 1985-11-14

Family

ID=13818224

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59083999A Pending JPS60229038A (en) 1984-04-27 1984-04-27 Copying machine

Country Status (1)

Country Link
JP (1) JPS60229038A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01281473A (en) * 1988-05-09 1989-11-13 Canon Inc Image forming device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01281473A (en) * 1988-05-09 1989-11-13 Canon Inc Image forming device

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