JPH01502061A - 転写ドラムを有する静電複写機 - Google Patents
転写ドラムを有する静電複写機Info
- Publication number
- JPH01502061A JPH01502061A JP63501261A JP50126188A JPH01502061A JP H01502061 A JPH01502061 A JP H01502061A JP 63501261 A JP63501261 A JP 63501261A JP 50126188 A JP50126188 A JP 50126188A JP H01502061 A JPH01502061 A JP H01502061A
- Authority
- JP
- Japan
- Prior art keywords
- image
- transfer
- paper
- drum
- transfer device
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
- H04N1/0057—Conveying sheets before or after scanning
- H04N1/00572—Conveying sheets before or after scanning with refeeding for double-sided scanning, e.g. using one scanning head for both sides of a sheet
- H04N1/00575—Inverting the sheet prior to refeeding
-
- 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
- G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
- G03G15/0105—Details of unit
- G03G15/0131—Details of unit for transferring a pattern to a second base
-
- 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
- G03G15/1605—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 using at least one intermediate support
-
- 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
- G03G15/167—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 at least one of the recording member or the transfer member being rotatable during the transfer
- G03G15/1685—Structure, details of the transfer member, e.g. chemical composition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
- H04N1/0057—Conveying sheets before or after scanning
- H04N1/00599—Using specific components
- H04N1/00602—Feed rollers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
- H04N1/0057—Conveying sheets before or after scanning
- H04N1/00599—Using specific components
- H04N1/0061—Feed belts
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Color Electrophotography (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.静電複写装置あるいはプリンタ等に用いられ、移動するイメージ部材(2) に静電的に保持された複数の調色像を、同調色像の到着に同期して移送されるコ ピー用紙に転写する転写装置(8)であって、同転写装置は転写ドラム(9)を 有し、かつ同転写ドラムは第1のコピー用紙を前記ドラムの周囲に固定する固定 手段と、前記ドラムを回転させ、前記イメージ部材に保持された前記調色像が前 記イメージ部材によって移送され、前記転写装置を通過するときに、1以上の同 調色像に同期させて、前記固定されたコピー用紙を転写位置に移送し、前記1以 上の調色像を一致させて前記第1のコピー用紙に転写する駆動手段とを有する転 写装置(8)において、前記転写ドラム(9)は、同ドラムの周囲に第2のコピ ー用紙を固定する第2の固定手段を有し、これによって同転写ドラムの回転最中 に前記第2のコピー用紙に転写されるべき複数の調色像を一致させて同第2の用 紙に転写することを特徴とする転写装置。 2.前記転写装置(8)は2種の操作モードを有しており、第1モードでは大型 サイズコピー用紙がその長辺を前記転写ドラム(9)の周囲の2分の1以上に巻 き付けるように配置される一方、第2モードでは2枚の小型サイズコピー用紙が その短辺を前記転写ドラムの周囲を取り巻くように配置されることを特徴とする 、請求の範囲第1項記載の転写装置。 3.周方向に間隔を置いて形成され、第1及び第2のコピー用紙の先端を各々固 定する第1(31)及び第2(32)の固定手段を有することを特徴とする、請 求の範囲第2項記載の転写装置。 4.前記固定手段(31,32)は互いに独立して操作可能であることを特徴と する、請求の範囲第3項記載の転写装置。 5.前記固定手段が第1及び第2の真空吸引孔(31,32)を有することを特 徴とする、請求の範囲第4項記載の転写装置。 6.前記第1モードで作動しているときは、第1調色像及び第1コピー用紙が転 写ドラムに到着するのに同期させて第1の真空吸引孔(31,32)を駆動し、 更に転写ドラムに達した同コピー用紙に転写される最後のイメージの先端の到着 に応答して第1の真空吸引孔の真空を解除する一方、前記第2モードで作動して いるときは、対応するコピー用紙が転写ドラムに到着するのに同期させて第1及 び第2の真空吸引孔を各々駆動させ、更に同コピー用紙に転写される最後の調色 像の先端の到着に応答して第1及び第2の各真空吸引孔の真空を解除する同期調 整手段(71,72,73)を有することを特徴とする、請求の範囲第5項記載 の転写装置。 7.イメージ部材上に複数の静電潜像を形成するイメージ形成手段(3)と、 前記静電潜像を調色して調色像を形成する静電潜像調色手段(4,5,6,7) と、 請求の範囲第2項の転写装置を有し、コピー用紙に前記複数像を一致させて転写 する転写手段と、前記転写装置が第1及び第2モードにあるとき、前記イメージ 形成手段と共働してイメージ部材上の静電潜像の構成の順序を制御する制御手段 (18)とを有することを特徴とする静電画像装置。 8.前記イメージ形成手段は、電気信号に応答して静電潜像を形成する手段を有 しており、かつ前記制御手段(18)はイメージメモリ(17)と共働して、前 記転写装置が前記第1モードにある場合は第1に予め定められた順序に従って、 また転写装置が前記第2モードにある場合には第2にあらかじめ定められた順序 に従って、同イメージメモリ内に蓄積された電気信号を前記イメージ形成手段に 発信する発信手段を有することを特徴とする請求の範囲第7項記載の静電面像装 置。 9.前記イメージメモリ(17)内に蓄積された電子イメージは多色像における 複数の異なる構成色素を表しており、更に前記制御手段(18)は前記転写装置 (8)が第2モードで作動される場合、イメージ部材(2)上で2種類の多色像 を交互に形成する形成手段を有していることを特徴とする請求の範囲第8項記載 の静電画像装置。 10.前記イメージ形成手段(3)は多色像の色彩要素を表現する静電潜像を形 成する手段(3,18)を有していることを特徴とする請求の範囲第7項記載の 静電画像装置。 11.前記調色手段は、少なくとも2つの連続する大型の静電潜像及び少なくと も2つの連続する一対の小型の静電潜像に、異なる色のトナーを供給する手段を 有することを特徴とする請求の範囲第10項記載の静電画像装置。 12.前記同期調整手段は、前記転写ドラム(9)と共に回転し、各々別個に前 記真空吸引孔(31,32)に連通する第1及び第2の中空手段(42,45) と、一次真空チャンバ(65)と、前記転写ドラムの回転に伴い一次真空チャン バを、前記第1若しくは第2の中空手段(42,45)と交互に連通されるため 位置決めされた、第1と第2の非回転チャンバ(66,67)と、前記第2チャ ンバを選択的に閉じて同第2チャンバとその時点で連通していた第1若しくは第 2の中空手段の一方の真空を解除し、これによって各真空吸引孔が前記転写ドラ ムの回転中の特定の位置に達した時に1回転について1度、同真空吸引孔の真空 を解除する、栓手段(71,72,73)とを有することを特徴とする、請求の 範囲第6項記載の転写装置。 13.前記第2チャンバは同チャンバに空気を取りλれるように移動可能なビン (74)を有しており、かつ前記栓手段は可動のバルブ部材(73)を有してお り、同バルブ部材は、同バルブが閉じるのに応答して前記ビンに係合して同ビン を動かし第2チャンバに空気を流入させる突起を有していることを特徴とする、 請求の範囲第12項記載の転写装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US007036 | 1979-01-29 | ||
US07/007,036 US4712906A (en) | 1987-01-27 | 1987-01-27 | Electrostatographic apparatus having a transfer drum |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01502061A true JPH01502061A (ja) | 1989-07-13 |
JP2807477B2 JP2807477B2 (ja) | 1998-10-08 |
Family
ID=21723852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63501261A Expired - Lifetime JP2807477B2 (ja) | 1987-01-27 | 1988-01-19 | 転写ドラムを有する静電複写機 |
Country Status (5)
Country | Link |
---|---|
US (1) | US4712906A (ja) |
EP (1) | EP0300006B1 (ja) |
JP (1) | JP2807477B2 (ja) |
DE (1) | DE3874830T2 (ja) |
WO (1) | WO1988005564A1 (ja) |
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US5138374A (en) * | 1991-04-04 | 1992-08-11 | Eastman Kodak Company | Image forming apparatus including means for receiving an image member cartridge |
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JP3397343B2 (ja) * | 1992-07-31 | 2003-04-14 | キヤノン株式会社 | 画像形成装置 |
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JP3323678B2 (ja) * | 1994-12-15 | 2002-09-09 | キヤノン株式会社 | カラー画像形成装置および方法 |
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US4550999A (en) * | 1984-03-05 | 1985-11-05 | Ricoh Company Ltd. | Electrophotographic copying apparatus including transfer hold-down pump |
US4687323A (en) * | 1985-03-07 | 1987-08-18 | Dainippon Screen Mfg. Co., Ltd. | Rotary suction drum |
US4605298A (en) * | 1985-04-29 | 1986-08-12 | Eastman Kodak Company | Electrographic transfer roller drive mechanism |
-
1987
- 1987-01-27 US US07/007,036 patent/US4712906A/en not_active Expired - Lifetime
-
1988
- 1988-01-19 DE DE8888901135T patent/DE3874830T2/de not_active Expired - Fee Related
- 1988-01-19 JP JP63501261A patent/JP2807477B2/ja not_active Expired - Lifetime
- 1988-01-19 WO PCT/US1988/000108 patent/WO1988005564A1/en active IP Right Grant
- 1988-01-19 EP EP88901135A patent/EP0300006B1/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61223856A (ja) * | 1985-03-29 | 1986-10-04 | Konishiroku Photo Ind Co Ltd | 画像形成装置 |
JPS61269176A (ja) * | 1985-05-24 | 1986-11-28 | Fuji Xerox Co Ltd | カラ−複写機の転写装置 |
Also Published As
Publication number | Publication date |
---|---|
EP0300006A1 (en) | 1989-01-25 |
US4712906A (en) | 1987-12-15 |
JP2807477B2 (ja) | 1998-10-08 |
DE3874830D1 (de) | 1992-10-29 |
DE3874830T2 (de) | 1993-04-22 |
WO1988005564A1 (en) | 1988-07-28 |
EP0300006B1 (en) | 1992-09-23 |
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