JPH0532297B2 - - Google Patents
Info
- Publication number
- JPH0532297B2 JPH0532297B2 JP11432483A JP11432483A JPH0532297B2 JP H0532297 B2 JPH0532297 B2 JP H0532297B2 JP 11432483 A JP11432483 A JP 11432483A JP 11432483 A JP11432483 A JP 11432483A JP H0532297 B2 JPH0532297 B2 JP H0532297B2
- Authority
- JP
- Japan
- Prior art keywords
- feeding
- sheet
- transfer material
- registration
- roller
- 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
Links
- 108091008695 photoreceptors Proteins 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
- B65H5/062—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers between rollers or balls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/30—Orientation, displacement, position of the handled material
- B65H2301/33—Modifying, selecting, changing orientation
- B65H2301/331—Skewing, correcting skew, i.e. changing slightly orientation of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/51—Modifying a characteristic of handled material
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は、複写機あるいは記録装置等の画像形
成機器に用いられるシート状の複写材給送装置に
関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a sheet-like copy material feeding device used in image forming equipment such as a copying machine or a recording device.
(従来の技術)
現用の複写機給送装置の1例としての第1図に
示す如き装置には、シート材即ち転写材、積載カ
セツト1内に積載された転写材3を積載カセツト
の爪分離方式と協働して1枚ずつ給送する給送ロ
ーラ2と、適用対象体、即ち感光体ドラム6との
間に該ドラム上に形成された現像像が転写材3の
正規の位置に転写されるように転写材3の給送タ
イミングを整えるレジストローラ5が配設されて
いる。(Prior Art) A device as shown in FIG. 1 as an example of a current copying machine feeding device has a sheet material, that is, a transfer material, and a transfer material 3 loaded in a loading cassette 1 is separated by a claw of the loading cassette. The developed image formed on the drum is transferred to a regular position on the transfer material 3 between the feed roller 2, which feeds the sheets one by one in cooperation with the system, and the object to be applied, that is, the photosensitive drum 6. Registration rollers 5 are provided to adjust the feeding timing of the transfer material 3 so that the transfer material 3 is fed.
この装置において、給送ローラ2によつて転写
材積載カセツト1から給送された転写材3は、給
送ガイド4を経てレジストローラ5に到達する。
レジストローラ5は、感光体ドラム6上に形成さ
れた現像像が給送された転写材3の正規の位置に
転写されるように給送するように構成されてい
る。この場合、感光体ドラム6上の現像像と転写
材3が正規位置に遅れずに合致するように、かつ
転写材3が万一斜行してレジストローラ5に到達
した際にこれを補正するために、レジストローラ
5より上流の領域aにおいて実線で示すように転
写材3の前縁にわたつてループを形成するように
構成されている。 In this apparatus, a transfer material 3 is fed from a transfer material loading cassette 1 by a feeding roller 2 and reaches a registration roller 5 via a feeding guide 4.
The registration rollers 5 are configured to feed the developed image formed on the photosensitive drum 6 so that it is transferred to a regular position on the fed transfer material 3. In this case, the developed image on the photoreceptor drum 6 and the transfer material 3 are aligned with the proper position without delay, and if the transfer material 3 reaches the registration roller 5 in a skewed manner, this is corrected. Therefore, in a region a upstream from the registration roller 5, a loop is formed across the leading edge of the transfer material 3, as shown by a solid line.
(発明が解決しようとする課題)
しかし、機械の構成上により給送ガイド4が急
峻な昇りを示している場合や、給送ガイド4と転
写材3との摩擦により給送ガイド4が帯電し、転
写材3が給送ガイド4に吸着したりするような場
合、給送ローラ2の転写材3を押し出す力が正し
く前方に伝わらず、給送口bにおいて転写材3は
破線3′で示すようにループを作つたりする。そ
のため転写材3はレジストローラ5に到達しなか
つたり、あるいは到達したとしても転写材3が、
斜行したままレジストローラ5に入り搬送される
ことにより詰まり現象または感光体ドラム6上の
現像像と転写材3が正規の位置にないなどの欠点
がある。(Problem to be Solved by the Invention) However, if the feeding guide 4 rises steeply due to the configuration of the machine, or if the feeding guide 4 is charged due to friction between the feeding guide 4 and the transfer material 3. , if the transfer material 3 is attracted to the feeding guide 4, the force of the feeding roller 2 to push out the transfer material 3 is not properly transmitted to the front, and the transfer material 3 at the feeding port b is indicated by a broken line 3'. Create a loop like this. Therefore, the transfer material 3 may not reach the registration roller 5, or even if it reaches the registration roller 5, the transfer material 3 may not reach the registration roller 5.
If the transfer material 3 enters the registration rollers 5 while being skewed, there are drawbacks such as clogging or the development image on the photoreceptor drum 6 and the transfer material 3 not being in the correct position.
本発明は、上記問題点に鑑みなされたもので、
転写材の安定且つ円滑な給送を実施できる複写材
給送装置を提供することを目的とする。 The present invention was made in view of the above problems, and
It is an object of the present invention to provide a copying material feeding device capable of stably and smoothly feeding a transfer material.
(課題を解決するための手段)
本発明は、シートを送り出すための給送手段
と、
前記給送手段によるシートの送り出し方向から
ずれた位置に配置されたレジスト手段と、
前記給送手段と前記レジスト手段との間に配置
され、前記給送手段により送り出されたシートに
カールを形成して搬送するための中間ローラと、
前記中間ローラによりカールが形成されて搬送
されてくるシートを前記レジスト手段に向けて案
内するガイド手段と、を備え、
前記中間ローラは、シートにその先端が前記ガ
イド手段に突き当たる向きのカールを形成し、か
つ、シートをその先端が突き当たつた状態で前記
ガイド手段上を前記レジスト手段まで搬送してな
ることを特徴とする。(Means for Solving the Problems) The present invention provides: a feeding means for feeding out a sheet; a registration means disposed at a position offset from a sheet feeding direction by the feeding means; the feeding means and the sheet feeding means; an intermediate roller disposed between the registration means and the sheet sent out by the feeding means to form a curl on the sheet and convey the sheet; and a sheet curled by the intermediate roller and conveyed to the registration means a guide means for guiding the sheet toward the guide means, the intermediate roller forming a curl in the direction in which the leading end of the sheet abuts the guide means, and the intermediate roller guiding the sheet with the leading end abutting the guide means. It is characterized in that the top is conveyed to the resist means.
(作用)
上記構成とすると、搬送手段からレジスト手段
に向けて送り出したシートに中間ローラによつて
カールを形成し、シートの先端がガイド手段に突
き当たつた状態でシートを搬送するようにしたた
め、シートとガイド手段との接触面積を小さくす
ることができて、シートとガイド手段との吸着等
の発生を抑えることができる。(Function) With the above configuration, the intermediate roller forms a curl on the sheet sent from the conveyance means toward the registration means, and the sheet is conveyed with the leading edge of the sheet hitting the guide means. The contact area between the sheet and the guide means can be reduced, and the occurrence of adsorption between the sheet and the guide means can be suppressed.
(実施例)
本発明の一実施例を示す附図を参照しつつ以下
に本発明を説明する。(Example) The present invention will be described below with reference to the accompanying drawings showing an example of the present invention.
本発明の一実施例を示す転写材カセツト給送系
を示す第2図において、9は給送ローラ(給送手
段)2とレジストローラ(レジスト手段)5との
間に設けられ、転写材3に下カールをつける役目
をもつた中間ローラ、7,8は中間ローラ9とレ
ジストローラ5との間で転写材3を案内するため
の下側給送ガイド(ガイド手段)および上側給送
ガイドである。 In FIG. 2 showing a transfer material cassette feeding system showing an embodiment of the present invention, reference numeral 9 is provided between a feeding roller (feeding means) 2 and a registration roller (registration means) 5; 7 and 8 are a lower feeding guide (guide means) and an upper feeding guide for guiding the transfer material 3 between the intermediate roller 9 and the registration roller 5. be.
なお、転写材に下カールを付ける役目を持つた
中間ローラ9としては、特願昭56−43664号や特
願昭56−46274号などに記載されている。一対の
ローラにより転写紙にールを付与するものが用い
られる。 The intermediate roller 9, which serves to curl the transfer material downward, is described in Japanese Patent Application Nos. 56-43664 and 1982-46274. A device that applies a roll to the transfer paper using a pair of rollers is used.
転写材3は給送ローラ2によつて転写材積カセ
ツト1から給送され、給送ガイド4を至て中間ロ
ーラ9に到達する。中間ローラ9は転写材3が到
達するか又は、それ以前に回転をはじめ、転写材
3に下カールを付けながら送られる。転写材3
は、下カールし、下側給送ガイド7と小さな接触
面積を保ちながら下側給送ガイド7上をその前縁
部で伝わり、レジストローラ5到達する。この際
レジストローラ5に近接するにつれて転写材3は
図において破線で示すように31→32の状態となり
該ローラの直前では32の如く到達部(第1図a
部)において所定のループ量を安定に形成する。
これによつて転写材3の斜行等を補正して、レジ
ストローラ5の回転によつて転写材3を感光体ド
ラム(第1図参照)上の現像像との正規の位置に
給送する。 The transfer material 3 is fed from the transfer material stack cassette 1 by the feeding roller 2, passes through the feeding guide 4, and reaches the intermediate roller 9. The intermediate roller 9 starts rotating before or after the transfer material 3 reaches the transfer material 3, and is fed while giving the transfer material 3 a downward curl. Transfer material 3
curls downward, travels along the lower feeding guide 7 at its front edge while maintaining a small contact area with the lower feeding guide 7, and reaches the registration roller 5. At this time, as the transfer material 3 approaches the registration roller 5, the state changes from 3 1 to 3 2 as shown by the broken line in the figure, and immediately before the roller, the transfer material 3 changes to the reaching part (a in Fig. 1) as shown in 3 2 .
A predetermined loop amount is stably formed in the section).
This corrects the skew of the transfer material 3, and the rotation of the registration rollers 5 feeds the transfer material 3 to the correct position relative to the developed image on the photoreceptor drum (see Figure 1). .
中間ローラ9の回転開始は、給送ローラ2の回
転と同期して行ない、その回転時間はレジストロ
ーラ5到達部で所定のループ量ができる一定時間
回転させ停止する。そして、レジストローラ5が
回転すると共に再び回転する。また、その回転速
度はレジストローラ5の速度と同じである。 The rotation of the intermediate roller 9 is started in synchronization with the rotation of the feeding roller 2, and the intermediate roller 9 rotates for a certain period of time at which a predetermined loop amount is formed at the position where the registration roller 5 reaches, and then stops. Then, as the registration roller 5 rotates, it rotates again. Further, its rotational speed is the same as the speed of the registration roller 5.
(発明の効果)
本発明は以上説明したように、給送手段とレジ
ストローラとの間にシートをカールを付与するた
めの中間ローラを設け、該中間ローラによつて給
送手段から送られてきたシートにカールを形成し
てシートの先端がガイド手段に突き当たつた状態
でシートを搬送するようにしたため、シートとガ
イド手段との吸着等の発生を抑えることができ
る。(Effects of the Invention) As explained above, the present invention provides an intermediate roller between the feeding means and the registration rollers for curling the sheet, and the intermediate roller allows the sheet to be fed from the feeding means. Since the sheet is curled and the sheet is conveyed with the leading edge of the sheet abutting against the guide means, it is possible to suppress the occurrence of adsorption between the sheet and the guide means.
そのため、安定且つ円滑なシートの給送が行な
え、シートの給送不良の発生を低減することがで
きる。 Therefore, stable and smooth sheet feeding can be performed, and occurrence of sheet feeding defects can be reduced.
第1図は、従来型給送装置の一典型例の断面
図、第2図は、本発明による給送装置の一実施例
の断面図を示す。
1……転写材積載カセツト、2……給送ローラ
(給送手段)、3……転写材(シート)、5……レ
ジストローラ(レジスト手段)、7……下側給送
ガイド(ガイド手段)、9……中間ローラ。
FIG. 1 is a sectional view of a typical example of a conventional feeding device, and FIG. 2 is a sectional view of an embodiment of a feeding device according to the present invention. 1... Transfer material loading cassette, 2... Feeding roller (feeding means), 3... Transfer material (sheet), 5... Registration roller (registration means), 7... Lower feeding guide (guide means) ), 9... intermediate roller.
Claims (1)
ずれた位置に配置されたレジスト手段と、 前記給送手段と前記レジスト手段との間に配置
され、前記給送手段により送り出されたシートに
カールを形成して搬送するための中間ローラと、 前記中間ローラによりカールが形成されて搬送
されてくるシートを前記レジスト手段に向けて案
内するガイド手段と、を備え、 前記中間ローラは、シートにその先端が前記ガ
イド手段に突き当たる向きのカールを形成し、か
つ、シートをその先端が突き当たつた状態で前記
ガイド手段上を前記レジスト手段まで搬送してな
ることを特徴とする給送装置。[Scope of Claims] 1. Feeding means for sending out sheets; Registration means disposed at a position offset from the sheet feeding direction by the feeding means; Between the feeding means and the registration means. an intermediate roller that is arranged to form a curl on the sheet sent out by the feeding means and convey it; and a guide that guides the sheet curled and conveyed by the intermediate roller toward the registration means. means, the intermediate roller curls the sheet in such a direction that its leading edge abuts the guide means, and moves the sheet, with its leading edge abutting, over the guide means to the registration means. A feeding device characterized by being conveyed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11432483A JPS606542A (en) | 1983-06-27 | 1983-06-27 | Feeder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11432483A JPS606542A (en) | 1983-06-27 | 1983-06-27 | Feeder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS606542A JPS606542A (en) | 1985-01-14 |
JPH0532297B2 true JPH0532297B2 (en) | 1993-05-14 |
Family
ID=14634978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11432483A Granted JPS606542A (en) | 1983-06-27 | 1983-06-27 | Feeder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS606542A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61243752A (en) * | 1985-04-17 | 1986-10-30 | Ricoh Co Ltd | Paper feeder |
JPH0626561A (en) * | 1992-02-26 | 1994-02-01 | Daikin Mfg Co Ltd | Lockup device of torque converter |
DE69412825T2 (en) * | 1993-06-10 | 1999-02-18 | Shell Int Research | ELECTRIC HOLE MEASUREMENT SYSTEM |
-
1983
- 1983-06-27 JP JP11432483A patent/JPS606542A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS606542A (en) | 1985-01-14 |
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