JPS5930555A - Removing device of paper dust in paper feed system - Google Patents
Removing device of paper dust in paper feed systemInfo
- Publication number
- JPS5930555A JPS5930555A JP57139674A JP13967482A JPS5930555A JP S5930555 A JPS5930555 A JP S5930555A JP 57139674 A JP57139674 A JP 57139674A JP 13967482 A JP13967482 A JP 13967482A JP S5930555 A JPS5930555 A JP S5930555A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- contact
- paper feed
- dust
- fibers
- 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
- G03G15/65—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"
- G03G2215/00405—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
- G03G2215/00443—Copy medium
- G03G2215/00531—Copy medium transported through the apparatus for non-imaging purposes, e.g. cleaning
-
- 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
Abstract
Description
【発明の詳細な説明】
本発朔−は、給紙装置から搬出された用紙の表面から紙
粉を除去する装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for removing paper dust from the surface of paper sheets fed out from a paper feeder.
複写機、オフセット印制機等では、複写用紙、＼−７
印制用紙等を所定位置へ給送するための給紙装置を備え
ている。Copying machines, offset printing machines, and the like are equipped with paper feeding devices for feeding copy sheets, printing sheets, etc. to predetermined positions.
この給紙装置には、各種型式のものがあるが、給紙トレ
イに多数”枚の用紙を積層し、最上位用紙の上面に給紙
ローラ、または給紙ベルトを対接１回転させ、その摩擦
力を以って最上位用紙を搬出する装置が一般的に使用さ
れている。There are various types of paper feed devices, but a large number of sheets of paper are stacked on a paper feed tray, and a paper feed roller or a paper feed belt is rotated once in contact with the top surface of the topmost sheet. Devices that use frictional force to eject the top sheet are commonly used.
この他、ベルトタイプの摩擦係合式給紙装置があり、例
えば、米国特許第３，７６８．８０３号明細書に記載さ
れた給紙装置は、給紙トレイ上の積層紙を確実に一枚ず
つ搬出し得る信頼性の高い装置であることが知られてい
る。同給紙装置０１は、第１図に示すようＯこ、一対の
ブーＩＪ−０２，０３に亘って給紙ベル）０４が張設さ
れ、両プーリー０２．０３間Ｇ、−於いて、給紙ベル）
０４に外接するように係合手段０５が配設されている。In addition, there are belt-type frictional engagement type paper feeders, such as the paper feeder described in U.S. Pat. It is known to be a highly reliable device that can be transported. As shown in FIG. 1, the paper feeding device 01 has a paper feeding bell (04) stretched across a pair of pulleys (IJ-02, 03), and a paper feeding bell (G, -) between both pulleys (02, 03). paper bell)
An engagement means 05 is disposed so as to circumscribe the engagement means 04.
また、一方のプーリー０２側に於いて、給紙ベル）０４
に対して所定圧で積層用紙Ｐが当接するように、給紙ト
レイ０６に付勢力Ｆが与えられている。したがって、両
プーリー０２．０３および給紙ベル）０４の回転に伴っ
て複数枚の用紙が取出され、給紙ベルト０４と係合手段
０５の間に挾み込まれる。ところが、保合手段０５の上
面が適当な凸状曲面になされており、かつ給紙ベルト側
に対して所定の押圧力が印加されているので、各用紙の
先端が順次整合され、最上位用紙のみが給紙ベル）０４
との摩擦接触Ｇこより搬出される。Also, on one pulley 02 side, the paper feed bell) 04
A biasing force F is applied to the paper feed tray 06 so that the stacked paper P comes into contact with the paper feed tray 06 with a predetermined pressure. Accordingly, as the pulleys 02, 03 and the paper feed belt 04 rotate, a plurality of sheets of paper are taken out and sandwiched between the paper feed belt 04 and the engaging means 05. However, since the upper surface of the holding means 05 has a suitably convex curved surface and a predetermined pressing force is applied to the paper feed belt side, the leading edges of each paper are aligned one after another, and the topmost paper is aligned. Only the paper feed bell) 04
It is carried out through frictional contact with G.
また、給紙ローラを用いて給紙トレイ上の用紙を取出し
た後、前記給紙装置０１タイプの用紙分離手段な通過き
せることＯこより、確実な一枚送りを行う装置もある。There is also an apparatus that reliably feeds one sheet by using a paper feed roller to take out the paper on the paper feed tray and then letting it pass through the paper separation means of the paper feed device 01 type.
以上、各種給紙装置では、いずれも給紙ローラ、給紙ベ
ルト等の給紙手段による摩擦力で用紙を搬出するので、
用紙表面の紙繊維が引き剥がされ、給紙手段の表面にイ
」着する。そして、給紙手段に対する紙繊維の付着量が
増えるに従って、給紙手段と用紙との間の摩擦力が小さ
くなり、給紙装置としての機能が低下する。As mentioned above, in each of the various paper feeding devices, paper is conveyed by the frictional force of paper feeding means such as paper feeding rollers and paper feeding belts.
The paper fibers on the surface of the paper are torn off and deposited on the surface of the paper feeding means. As the amount of paper fibers attached to the paper feeding means increases, the frictional force between the paper feeding means and the paper decreases, and the function of the paper feeding device deteriorates.
この問題を解決するために、給紙装置稼動中に、自動的
に給紙ローラ、あるいは給紙ベルト２清掃する装置が提
案され、効果的に実用化されている。To solve this problem, a device has been proposed that automatically cleans the paper feed roller or paper feed belt 2 while the paper feed device is in operation, and has been effectively put into practical use.
一方、給紙装置を通過した用紙に関しては、給紙手段と
摩擦接触した表面は、紙の繊、ｔ４Ｉ間結合力が極端Ｇ
こ低下すると＼もに、繊維の浮き上７９が生じ、繊維が
引き剥がされ易い状態になっている。On the other hand, regarding the paper that has passed through the paper feeder, the surface that is in frictional contact with the paper feeder has an extremely strong bonding force between the paper fibers and t4I.
When this decreases, the fibers rise 79 and are in a state where they are likely to be peeled off.
したがって、以降の用紙搬送路に於いて、用紙と接触す
る搬送手段、例えば搬送ベルト、搬送ローラ、バッフル
（ｂａｆｆｌθ）等に剥離した繊維、すなわち紙粉が付
着、蓄積して、紙送り不良等のトラブルが発生する。ま
た、’ｔｒＬ子写貞複写機Ｇこ於いては、剥離し易い繊
維が感光体表面に静電、的に付着シ、クリーニング不良
、延いては復写不良等のトラブルが生じ易くなる。Therefore, in the subsequent paper conveyance path, peeled fibers, that is, paper powder, adhere to and accumulate on conveyance means that come into contact with the paper, such as conveyance belts, conveyance rollers, baffles (bafflθ), etc., resulting in poor paper conveyance, etc. Trouble occurs. Further, in the 'trL replica copying machine G, troubles such as easy-to-peel fibers electrostatically adhere to the surface of the photoreceptor, poor cleaning, and even poor duplication are likely to occur.
本発明は、斯かる事情に鑑みて得られたものであり、給
紙手段の前方に、搬出された用紙表面と接触、または非
接触に表面粘着性の部付を配置したことを特徴としてい
る。The present invention has been developed in view of the above circumstances, and is characterized in that a surface-adhesive part is disposed in front of the paper feeding means, either in contact with the surface of the paper being carried out or in a non-contact manner. .
本発明の目的は、給紙手段により搬出された用紙の表面
から剥離し易い紙粉企除去し、以って、給紙系に於ける
各種トラブル分未然に防Ｊ、Ｉする点にある。SUMMARY OF THE INVENTION An object of the present invention is to remove paper particles that are easily peeled off from the surface of paper fed by a paper feeding means, thereby preventing various troubles in the paper feeding system.
以下、第２図、第３図に則して本発明の一実施例を説明
する。An embodiment of the present invention will be described below with reference to FIGS. 2 and 3.
第２図は、通常タイプの複写機を示しており、原稿台４
上に載置された原稿イメージは、レンズ系を介して、帯
電装置２によって予め帯電された感光体ドラム１に投影
される。また、給紙トレイ５上の用紙ｐ’Ｂ搬出する給
紙装置６は、軸７３支点として傾動自在な支持アーム８
の先！７：Ｍに駆動給紙ローラ９が枢支されたものであ
り、給紙ローラ９か所定圧で用紙Ｐの上面に当接され、
用紙Ｐが一枚ずつ取出され、搬送系へ給送される。Figure 2 shows a normal type copying machine, with the original platen 4
The original image placed thereon is projected through a lens system onto the photosensitive drum 1 which has been charged in advance by a charging device 2. Further, the paper feed device 6 that carries out the paper p'B on the paper feed tray 5 has a support arm 8 that can freely tilt as a fulcrum of a shaft 73.
Beyond! 7: A driving paper feed roller 9 is pivotally supported on M, and the paper feed roller 9 is brought into contact with the upper surface of the paper P with a predetermined pressure.
The sheets P are taken out one by one and fed to the conveyance system.
斯くして、転写器３部へ給送された用紙Ｐは、露光、現
像工程Ｂ経て回転した転写部へ到った感光ドラム１０表
面に静電的に吸着された後、剥離され、定着器１０へ給
送され、トナー・イメージの定着が行われる。そして、
定着された用紙は、排紙トレイ１１上に排出される。In this way, the paper P fed to the third transfer unit is electrostatically attracted to the surface of the photosensitive drum 10 which has reached the rotating transfer unit after exposure and development process B, and is then peeled off and transferred to the fixing unit. 10, where the toner image is fixed. and,
The fixed paper is discharged onto the paper discharge tray 11.
しかして、本実施例では、第３図に示すように、給紙装
置６の前方に紙粉除去装置２０が配、役されている。同
装置２０は、軸２１によって駆動回転されるローラ状体
で、支持体２２と、その外周に積層された粘着層２：３
とで構成ざｉｌ、粘着層おが、搬送される用紙と接触す
るか、または用紙表面０．２ｍｍ以下の間隔？ｉ：なす
ように配置されている。なお、前記粘着層２：３として
は、水性型の天然ゴムラテックス、合成ゴムラテックス
、アクリル樹脂、エマルジョン等、溶剤型の天然ゴム、
合成ゴム、ポリイソブチレン、ポリビニルアルキルエー
テル、アクリルエステル共重合物等一般に使用されてい
る各種の粘着剤を使用し得る。Therefore, in this embodiment, as shown in FIG. 3, a paper dust removing device 20 is provided in front of the paper feeding device 6. The device 20 is a roller-shaped body driven and rotated by a shaft 21, and includes a support body 22 and an adhesive layer 2:3 laminated on the outer periphery of the support body 22.
Does the paper and adhesive layer come into contact with the paper being conveyed, or does it have an interval of 0.2 mm or less from the paper surface? i: Arranged like this. The adhesive layer 2:3 may include water-based natural rubber latex, synthetic rubber latex, acrylic resin, emulsion, etc., solvent-based natural rubber,
Various commonly used adhesives such as synthetic rubber, polyisobutylene, polyvinyl alkyl ether, and acrylic ester copolymers can be used.
前記構成に於いて、給紙ローラ９の駆動回転により、給
紙トレイ５から搬出ごれた用紙Ｐは、給紙ローラ９と摩
擦接触した部分の紙ｆａ紺が７′？上り、剥離し易い状
態になっている。搬出ＩＩＩ紙Ｐは、直ちに紙粉除去装
置２０の粘着層２３と接触しながら、または０．２ｍｍ
以下の間隔を置いて進行し１剥離し易い状態の紙繊維が
用紙表向から粘１１層、’Ｊへ、ｌｌｌＣｉ次付着転移
する。したがって、紙粉除去装；べ２０を通過した用紙
表面からの紙粉の発生は少なく、以降の搬送路を構成す
る搬送手段が、紙粉に汚染されることによる紙送りトラ
ブル、あるいは１色光ドラム１０表面に紙粉が付Ｍする
ことによるクリーニング不良等のトラブルが効果的に防
止される。In the above configuration, the paper P carried out from the paper feed tray 5 by the driven rotation of the paper feed roller 9 has a dark blue color of the paper fa in the portion that has come into frictional contact with the paper feed roller 9 7'? It is in a state where it is easy to peel off. Carrying out III paper P is immediately brought into contact with the adhesive layer 23 of the paper dust removing device 20, or by 0.2 mm.
Progressing at the following intervals, the paper fibers in a state where they are easily peeled are transferred from the front surface of the paper to the viscous layer 11, 'J, to the 11Ci layer. Therefore, the generation of paper dust from the surface of the paper that has passed through the paper dust removing device 20 is small, and the conveyance means that constitute the subsequent conveyance path may be contaminated with paper dust, causing paper feeding problems or the one-color optical drum. 10. Problems such as poor cleaning caused by paper dust M on the surface are effectively prevented.
次に第４図に示す実施例について説明する。Next, the embodiment shown in FIG. 4 will be described.
給紙トレイ５から給紙ローラ９によって取出された用紙
Ｐは、用紙分離装置：つ０に於ける紙案内ブロック３２
に誘導され、一対のプーリー間に張設された給紙ベルト
３１と、紙案内ブロック：３２に支持されると＼もに、
給紙ベルト３１に所定圧で当接されたゴム製係合手段：
３３との間に給送され、給紙ベルト：３１の回転によっ
て挾持圧を受けながら搬出される。この時、用紙分離装
置３０に対して、給紙トレイ５から複数枚の用紙が送り
込まれたとしても、ゴム製係合手段３３の用紙分離作用
により、最上位用紙のみが給紙ベルト３１と摩擦接触し
て搬出される。The paper P taken out from the paper feed tray 5 by the paper feed roller 9 is transferred to the paper guide block 32 in the paper separation device:
When guided by the paper feed belt 31 stretched between a pair of pulleys and supported by the paper guide block 32,
Rubber engagement means abutted against the paper feed belt 31 with a predetermined pressure:
33, and is conveyed out while being subjected to clamping pressure by the rotation of the paper feed belt 31. At this time, even if a plurality of sheets of paper are sent from the paper feed tray 5 to the paper separation device 30, only the uppermost sheet will rub against the paper feed belt 31 due to the paper separation action of the rubber engagement means 33. They come into contact with each other and are carried out.
用紙分離装置３０から出た用紙Ｐは、給紙ローラ９、給
紙ベルト３１およびゴム製係合手段３３と摩擦接触して
搬送されたものであるため、両面共に紙繊維が剥離され
易い状態になっている。ところが、用紙分離装置３０の
前方には、一対の紙粉除去装置２０が配置されており、
同装置２０間を通過する用紙Ｐの両表面が各粘着層２３
と軽く接触するか、または少くとも一方側の表面が粘着
層乙と０．２ｍ、以下の間隔をなすようになさＩｔでい
るため、両表面に於ける紙繊維が粘Ｍ層２３に順次付着
転移する。したがって、以降の搬送路に於いて紙汚染が
牛することは無い。Since the paper P coming out of the paper separation device 30 is conveyed in frictional contact with the paper feed roller 9, the paper feed belt 31, and the rubber engagement means 33, the paper fibers on both sides are easily separated. It has become. However, a pair of paper dust removal devices 20 are arranged in front of the paper separation device 30.
Both surfaces of the paper P passing between the devices 20 are coated with each adhesive layer 23.
The paper fibers on both surfaces are sequentially attached to the adhesive layer 23 because the paper fibers on both surfaces are in light contact with the adhesive layer 23, or at least one side is at a distance of 0.2 m or less from the adhesive layer 23. metastasize. Therefore, paper contamination will not occur on the subsequent conveyance path.
なお、前記紙粉除去装置２０の代りに、巻取り式粘着ベ
ルト４３を用いた紙粉除去装置ｉ’ｉ ４Ｆ）を採用す
ることも可能であり、同装置４０によノ１．ば紙繊維が
（＝Ｊ着した面を巻取って、常時新しい粘）；’：ｔ
［ｒｌｌを露出させ、紙繊維の付着効果をアップさせる
ことができる（第５１ｇ参照）。Note that instead of the paper dust removing device 20, it is also possible to employ a paper dust removing device i'i 4F) using a winding type adhesive belt 43, and the paper dust removing device i'i 4F) using a winding type adhesive belt 43 can be used. If the paper fibers are rolled up (= J is rolled up and the surface is always fresh);':t
[rll can be exposed to improve the adhesion effect of paper fibers (see No. 51g).
以上、実施例の説明から明らかなように、本発明では、
給紙手段の１１１ｊ方に、搬出された用紙表面と接触、
または非接触に表面粘着性の部材を配置したので、前記
給紙手段との摩擦接触により、剥離し易い状態になった
紙繊維が付着転移ざス１、以降の給紙系に於いて紙粉汚
染によるトラブルが発生することはない。As is clear from the description of the embodiments above, in the present invention,
Contact with the surface of the paper carried out on the 111j side of the paper feeding means,
Alternatively, since a surface-adhesive member is arranged in a non-contact manner, paper fibers that are easily peeled off due to frictional contact with the paper feeding means are attached and transferred to the paper powder in the subsequent paper feeding system. No problems will occur due to contamination.
第１図は公知に係る給紙装置の説明図、第２１閾は本発
明の一実施例を適用する電子写真複７ｊ機の概略図１第
３図は同実施例に係る紙粉除去装置の説明図、第４図、
第５図は夫れ夫れ他の実施例に係る紙粉除去装置の説明
図である。
■・・・感光ドラム、２・・・帯電装置、３・・・転写
器、４・・・原稿台、５・・・給紙トレイ、６・・・給
紙装置、７・・・軸、８・・・支持アーム、９・・・給
紙ローラ、１０・・・定着器、１１・・・排紙トレイ、
２０・・・紙粉除去装置、２Ｉ・・・軸、２２・・・支
持体、２３・・・粘着層、
；３０・・・用紙分離装置、３〕・・・給紙ベル）、３
２・・・給紙案内ブロック、３３・・・ゴム製係合手段
、４０・・・紙粉除去装置・
、１３・・・巻取り式粘着ベルト。
代理人 弁理士 江 原 望
外１名
范１図
１
（FIG. 1 is an explanatory diagram of a known paper feeding device, and the 21st threshold is a schematic diagram of an electrophotographic copier 7j to which an embodiment of the present invention is applied. FIG. 3 is a schematic diagram of a paper dust removing device according to the same embodiment. Explanatory diagram, Figure 4,
FIG. 5 is an explanatory diagram of a paper dust removing device according to another embodiment. ■...Photosensitive drum, 2...Charging device, 3...Transfer device, 4...Original table, 5...Paper feed tray, 6...Paper feed device, 7...Axis, 8... Support arm, 9... Paper feed roller, 10... Fixing device, 11... Paper output tray, 20... Paper dust removal device, 2I... Shaft, 22... Support body, 23... adhesive layer; 30... paper separation device, 3]... paper feed bell), 3
2...Paper feed guide block, 33...Rubber engagement means, 40...Paper dust removal device, 13...Rewind type adhesive belt. Agent Patent attorney Ehara Mogai 1 name 1 figure 1 (
Claims (1)
摩擦接触した側の用紙表面と接触、または非接触に表面
粘着性の部材を配置し、用紙表面の紙粉を前記粘着部材
に付着せしめるようになした給紙系に於ける紙粉除去装
置。1. For the paper carried out by the paper feeding means, a surface adhesive member is placed in contact with or not in contact with the surface of the paper on the side that is in frictional contact with the paper feeding means, and paper powder on the surface of the paper is attached to the adhesive member. A device for removing paper dust in a paper feeding system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57139674A JPS5930555A (en) | 1982-08-13 | 1982-08-13 | Removing device of paper dust in paper feed system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57139674A JPS5930555A (en) | 1982-08-13 | 1982-08-13 | Removing device of paper dust in paper feed system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5930555A true JPS5930555A (en) | 1984-02-18 |
Family
ID=15250772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57139674A Pending JPS5930555A (en) | 1982-08-13 | 1982-08-13 | Removing device of paper dust in paper feed system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5930555A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4796058A (en) * | 1987-01-06 | 1989-01-03 | Minolta Camera Kabushiki Kaisha | Recording apparatus |
| JPH01148554A (en) * | 1987-12-07 | 1989-06-09 | Mitsubishi Heavy Ind Ltd | Paper dust remover of printer |
-
1982
- 1982-08-13 JP JP57139674A patent/JPS5930555A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4796058A (en) * | 1987-01-06 | 1989-01-03 | Minolta Camera Kabushiki Kaisha | Recording apparatus |
| JPH01148554A (en) * | 1987-12-07 | 1989-06-09 | Mitsubishi Heavy Ind Ltd | Paper dust remover of printer |
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