JPS6159468A - Form separating device of copying machine - Google Patents
Form separating device of copying machineInfo
- Publication number
- JPS6159468A JPS6159468A JP18067684A JP18067684A JPS6159468A JP S6159468 A JPS6159468 A JP S6159468A JP 18067684 A JP18067684 A JP 18067684A JP 18067684 A JP18067684 A JP 18067684A JP S6159468 A JPS6159468 A JP S6159468A
- Authority
- JP
- Japan
- Prior art keywords
- fixing roller
- paper
- air
- fixing
- tip
- 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
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
- G03G15/2017—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means
- G03G15/2028—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means with means for handling the copy material in the fixing nip, e.g. introduction guides, stripping means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は定着後定着ローラに付着した用紙を剥離する
複写機の用紙剥離装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a paper peeling device for a copying machine that peels off paper adhered to a fixing roller after fixing.
従来の技術
従来電子複写機には、用紙上に転写されたトナー像を用
紙に熱定着する定着装置を設けたものが公知である。上
記定着装置では定着時熱によシ溶融されたトナーの粘性
によシ定着後用紙が定着ローラに付着するため、第３図
に示すように定着ローラαの近傍に剥離爪６を設けて。2. Description of the Related Art Conventional electronic copying machines are known to be equipped with a fixing device for thermally fixing a toner image transferred onto a sheet of paper. In the fixing device described above, since the paper adheres to the fixing roller after fixing due to the viscosity of the toner melted by heat during fixing, a peeling claw 6 is provided near the fixing roller α as shown in FIG.
定着ローラαに付着した用紙Ｃをこの剥離爪すで剥離し
ている０
発明が解決しようとする問題点
しかし上記のような剥離爪すでは、定着ローラｂに静電
的に吸着された用紙Ｃ＋薄手の用紙Ｃ１もしくは先端が
カールした用紙Ｃなどは剥離できないことがあ凱紙詰シ
の原因となっていた。The paper C adhering to the fixing roller α is peeled off by this peeling claw 0 Problems to be Solved by the Invention However, with the above-mentioned peeling claw, the paper C+ that is electrostatically attracted to the fixing roller b is removed. Thin paper C1 or paper C with a curled leading edge cannot be peeled off, which causes paper jams.
この発明は上記不具合を改善する目的でなされたもので
ある。This invention was made for the purpose of improving the above-mentioned problems.
問題点を解決するための手段及び作用
定着ロー２に付着した用紙を剥離する剥離爪の先端に、
用紙の先端に向けて空気を噴出する空気吹出し口を設け
て、定着ローラに静電的に付着した用紙や薄手の用紙、
カールした用紙などでも確実に剥離できるようにした沙
写機の用紙剥離装置。Means and operation for solving the problem At the tip of the peeling claw that peels off the paper stuck to the fixing row 2,
An air outlet that blows air toward the leading edge of the paper is installed to remove paper that is electrostatically attached to the fixing roller, thin paper, etc.
A paper peeling device for a sand copying machine that can reliably peel even curled paper.
実施例 この発明を図示の一実施例により詳述すると。Example This invention will be explained in detail with reference to an illustrated embodiment.
図において１は図示しない電子複写機内に設けられた定
着装置で、熱源を内装した定着ロー２２と、トナー像の
転写された用紙４を上記定着ローラ２に圧着させる加圧
ローラ３とよりなる。In the figure, reference numeral 1 denotes a fixing device provided in an electronic copying machine (not shown), which includes a fixing roller 22 equipped with a heat source, and a pressure roller 3 that presses the sheet 4 onto which the toner image has been transferred onto the fixing roller 2.
上記定着ローラ２の上方には剥離爪５が設けられている
。上記剥離爪５は先端部にナイフェツジ５αが形成され
た平板状または筒状をなしていて、ナイフェツジ５αの
中央部に半円状の空気吹出し口５ｋが開口されていると
共に、剥離爪５内には、先端部が上記空気吹出し口５ｂ
に達するよう空気供給管６の一端側が挿入されている。A peeling claw 5 is provided above the fixing roller 2. The peeling claw 5 has a flat or cylindrical shape with a knife 5α formed at its tip, and a semicircular air outlet 5k is opened in the center of the knife 5α. The tip is the air outlet 5b.
One end side of the air supply pipe 6 is inserted so as to reach .
上記空気供給管６は例えばチューブであって他端側は図
示しない空気供給源に接続され。The air supply pipe 6 is, for example, a tube, and the other end thereof is connected to an air supply source (not shown).
この空気供給源より供給された圧縮空気が」二記剥離爪
５先端の空気吹出し口５ｂより定着ローラ２に密着した
用紙４に噴射されるようになっている。The compressed air supplied from this air supply source is ejected from the air outlet 5b at the tip of the peeling claw 5 onto the paper 4 that is in close contact with the fixing roller 2.
発明の効果
この発明は以上詳述したように定着ロー２２に伺治した
用紙４を剥離する剥離爪５の先端より用紙４に向けて空
気を吹出すようにしたことから、静電的に定着ロー２２
へ付着した用紙４や薄手の用紙４もしくはカールした用
紙４でも。Effects of the Invention As described in detail above, this invention blows air toward the paper 4 from the tip of the peeling claw 5 that peels off the paper 4 that has been cured by the fixing row 22, so that it can be fixed electrostatically. low 22
Even if the paper 4 is stuck to the paper 4, the paper 4 is thin, or the paper 4 is curled.
剥離爪５の先端より吹出される空気により用紙４と定着
ローラ２の間に隙間が形成され、かっこの隙間に剥離爪
５の先端が進入するため、確実に剥離することができる
。A gap is formed between the paper 4 and the fixing roller 2 by the air blown out from the tip of the peeling claw 5, and the tip of the peeling claw 5 enters the gap between the parentheses, so that the sheet can be peeled off reliably.
また吹出された空気に冷却されて用紙４上のトナーの粘
性が低下するため、剥ｒ４１１が容易になると共に、剥
離爪５の先端で用紙４上に定着されたトナー像が乱され
るなどの虞れも防止することができる。In addition, since the viscosity of the toner on the paper 4 is reduced by being cooled by the blown air, peeling 411 becomes easier and the toner image fixed on the paper 4 at the tip of the peeling claw 5 is disturbed. It is also possible to prevent this risk.
図面はこの発明の一実施例を示し、第１図は定着装置の
側面図、第２図は剥離爪の拡大側面図、第３図は回正面
図、第４図は従来の説明図である。
２は定着ローラ、４は用紙、５は剥離爪、５ｚは空気吹
出し口。The drawings show one embodiment of the present invention, in which Fig. 1 is a side view of the fixing device, Fig. 2 is an enlarged side view of the peeling claw, Fig. 3 is a rotation front view, and Fig. 4 is an explanatory diagram of the conventional device. . 2 is a fixing roller, 4 is paper, 5 is a peeling claw, and 5z is an air outlet.
Claims (1)
するものにおいて、上記剥離爪５の先端に、定着ローラ
２に付着した用紙４の先端に向けて空気を噴出する空気
吹出し孔５ｂを設けてなる複写機の用紙剥離装置。In a device in which the paper 4 adhering to the fixing roller 2 is peeled off after fixing with a peeling claw 5, an air blowing hole 5b is provided at the tip of the peeling claw 5 to blow out air toward the tip of the paper 4 stuck to the fixing roller 2. A paper peeling device for a copying machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18067684A JPS6159468A (en) | 1984-08-31 | 1984-08-31 | Form separating device of copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18067684A JPS6159468A (en) | 1984-08-31 | 1984-08-31 | Form separating device of copying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6159468A true JPS6159468A (en) | 1986-03-26 |
Family
ID=16087355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18067684A Pending JPS6159468A (en) | 1984-08-31 | 1984-08-31 | Form separating device of copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6159468A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63140571U (en) * | 1987-03-06 | 1988-09-16 | ||
| US7062211B2 (en) | 2002-12-19 | 2006-06-13 | Fuji Xerox Co., Ltd. | Peeling device and fixing device and image forming apparatus using the peeling device |
| JP2007248679A (en) * | 2006-03-15 | 2007-09-27 | Konica Minolta Business Technologies Inc | Image forming apparatus |
| US8249491B2 (en) | 2010-03-05 | 2012-08-21 | Ricoh Company, Ltd. | Fixing device and image forming apparatus including same |
| US8553238B2 (en) | 2010-08-19 | 2013-10-08 | Ricoh Company, Ltd. | Media separator, fixing device, and image forming apparatus |
| US8577270B2 (en) | 2010-01-07 | 2013-11-05 | Ricoh Company, Ltd. | Fusing device and image forming apparatus including the same |
-
1984
- 1984-08-31 JP JP18067684A patent/JPS6159468A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63140571U (en) * | 1987-03-06 | 1988-09-16 | ||
| US7062211B2 (en) | 2002-12-19 | 2006-06-13 | Fuji Xerox Co., Ltd. | Peeling device and fixing device and image forming apparatus using the peeling device |
| JP2007248679A (en) * | 2006-03-15 | 2007-09-27 | Konica Minolta Business Technologies Inc | Image forming apparatus |
| US8577270B2 (en) | 2010-01-07 | 2013-11-05 | Ricoh Company, Ltd. | Fusing device and image forming apparatus including the same |
| US8249491B2 (en) | 2010-03-05 | 2012-08-21 | Ricoh Company, Ltd. | Fixing device and image forming apparatus including same |
| US8553238B2 (en) | 2010-08-19 | 2013-10-08 | Ricoh Company, Ltd. | Media separator, fixing device, and image forming apparatus |
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