DE2702447A1 - Elektrofotografische kopiermaschine - Google Patents
Elektrofotografische kopiermaschineInfo
- Publication number
- DE2702447A1 DE2702447A1 DE19772702447 DE2702447A DE2702447A1 DE 2702447 A1 DE2702447 A1 DE 2702447A1 DE 19772702447 DE19772702447 DE 19772702447 DE 2702447 A DE2702447 A DE 2702447A DE 2702447 A1 DE2702447 A1 DE 2702447A1
- Authority
- DE
- Germany
- Prior art keywords
- light
- gap
- format
- station
- drum
- 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.)
- Withdrawn
Links
- 238000011161 development Methods 0.000 claims description 8
- 238000007786 electrostatic charging Methods 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 12
- 238000003384 imaging method Methods 0.000 description 10
- 238000012546 transfer Methods 0.000 description 8
- 230000018109 developmental process Effects 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007600 charging Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 241000500042 Eogenes Species 0.000 description 1
- 125000002066 L-histidyl group Chemical group [H]N1C([H])=NC(C([H])([H])[C@](C(=O)[*])([H])N([H])[H])=C1[H] 0.000 description 1
- KUGRPPRAQNPSQD-UHFFFAOYSA-N OOOOO Chemical compound OOOOO KUGRPPRAQNPSQD-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/045—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas
- G03G15/047—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas for discharging non-image areas
-
- 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
- G03G2215/04—Arrangements for exposing and producing an image
- G03G2215/0429—Changing or enhancing the image
- G03G2215/0431—Producing a clean non-image area, i.e. avoiding show-around effects
- G03G2215/0434—Parameters defining the non-image area to be cleaned
- G03G2215/0443—Copy medium outline relative to the charge image
-
- 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
- G03G2215/04—Arrangements for exposing and producing an image
- G03G2215/0429—Changing or enhancing the image
- G03G2215/0431—Producing a clean non-image area, i.e. avoiding show-around effects
- G03G2215/0448—Charge-erasing means for the non-image area
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Or Security For Electrophotography (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT67123/76A IT1055822B (it) | 1976-01-20 | 1976-01-20 | Macchina copiatrice elettrofotografica |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2702447A1 true DE2702447A1 (de) | 1977-07-21 |
Family
ID=11299778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19772702447 Withdrawn DE2702447A1 (de) | 1976-01-20 | 1977-01-20 | Elektrofotografische kopiermaschine |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4129378A (enExample) |
| JP (1) | JPS52106745A (enExample) |
| DE (1) | DE2702447A1 (enExample) |
| FR (1) | FR2339192A1 (enExample) |
| GB (1) | GB1570702A (enExample) |
| IT (1) | IT1055822B (enExample) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2840233A1 (de) * | 1977-09-17 | 1979-03-22 | Canon Kk | Verfahren und vorrichtung zur bilderzeugung |
| DE3109036A1 (de) * | 1980-03-12 | 1982-01-14 | Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa | Elektrostatisches kopiergeraet |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4256400A (en) * | 1977-10-08 | 1981-03-17 | Canon Kabushiki Kaisha | Copying machine provided with means for selectively setting original base line |
| JPS5669666A (en) * | 1979-11-12 | 1981-06-11 | Konishiroku Photo Ind Co Ltd | Copying machine |
| NL8104461A (nl) * | 1981-09-30 | 1983-04-18 | Oce Nederland Bv | Belichtingsinrichting. |
| JPS58162161U (ja) * | 1982-04-23 | 1983-10-28 | カシオ計算機株式会社 | 電子写真複写機の除電装置 |
| JPS59228680A (ja) * | 1983-06-10 | 1984-12-22 | Sharp Corp | 電子写真複写機 |
| NL8502186A (nl) * | 1985-08-05 | 1987-03-02 | Oce Nederland Bv | Kopieerapparaat voorzien van instelbare kadreermiddelen. |
| US4821067A (en) * | 1985-10-31 | 1989-04-11 | Kabushiki Kaisha Toshiba | Microfilm reader-printer having an image fermation device |
| US5300985A (en) * | 1992-05-29 | 1994-04-05 | Xerox Corporation | Multi-function erase lamp |
| US5459557A (en) * | 1992-06-30 | 1995-10-17 | Canon Kabushiki Kaisha | Image forming apparatus |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1055781A (fr) * | 1949-06-22 | 1954-02-22 | Kodak Pathe | Appareil pour la reproduction photographique de documents |
| US2927516A (en) * | 1955-12-21 | 1960-03-08 | Ibm | Record card controlled electro-graphic printer |
| US3751155A (en) * | 1971-12-30 | 1973-08-07 | Xerox Corp | Pre-development exposure assembly |
| BE793559A (fr) * | 1971-12-30 | 1973-06-29 | Xerox Corp | Machine electrostatographique comportant un dispositif de pre-developpement d'exposition |
| US3792913A (en) * | 1972-05-12 | 1974-02-19 | Xerox Corp | Xerographic erase mechanism |
| US3860338A (en) * | 1973-01-15 | 1975-01-14 | Xerox Corp | Adjustable fadeout control |
| GB1416062A (en) * | 1973-03-30 | 1975-12-03 | Xerox Corp | Electrostatography |
| DE2460544A1 (de) * | 1974-02-22 | 1975-08-28 | Xerox Corp | Elektrostatisches kopiergeraet |
-
1976
- 1976-01-20 IT IT67123/76A patent/IT1055822B/it active
- 1976-12-14 GB GB52157/76A patent/GB1570702A/en not_active Expired
-
1977
- 1977-01-07 US US05/757,537 patent/US4129378A/en not_active Expired - Lifetime
- 1977-01-17 FR FR7701181A patent/FR2339192A1/fr active Granted
- 1977-01-18 JP JP434477A patent/JPS52106745A/ja active Pending
- 1977-01-20 DE DE19772702447 patent/DE2702447A1/de not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2840233A1 (de) * | 1977-09-17 | 1979-03-22 | Canon Kk | Verfahren und vorrichtung zur bilderzeugung |
| DE3109036A1 (de) * | 1980-03-12 | 1982-01-14 | Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa | Elektrostatisches kopiergeraet |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2339192A1 (fr) | 1977-08-19 |
| JPS52106745A (en) | 1977-09-07 |
| IT1055822B (it) | 1982-01-11 |
| FR2339192B1 (enExample) | 1983-06-10 |
| GB1570702A (en) | 1980-07-09 |
| US4129378A (en) | 1978-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2446919C3 (de) | Steuereinrichtung für eine elektrofotografische Kopiervorrichtung | |
| DE2723458C2 (de) | Verfahren und Vorrichtung zur Handhabung von Original- und Kopienblättern in einem Kopiergerät | |
| DE3239007C3 (de) | Kopiergerät mit variablem Abbildungsmaßstab | |
| DE3545801A1 (de) | Verfahren und geraet zum herstellen von farbkopien | |
| DE2933422A1 (de) | Mischaufzeichnungsgeraet zur aufzeichnung von aus unterschiedlichen quellen stammenden informationen | |
| DE2702447A1 (de) | Elektrofotografische kopiermaschine | |
| DE2062591A1 (de) | Verfahren und Einrichtung zur Herstel lung von Duplex Reproduktionen eines Origmalbildes | |
| DE3342757A1 (de) | Seitenrand-kopiervorrichtung | |
| DE2661068C2 (enExample) | ||
| DE69424585T2 (de) | Bilddrucker | |
| DE3622403C2 (enExample) | ||
| DE2657107A1 (de) | Kopiereinrichtung | |
| DE2408411A1 (de) | Logiksteuerung fuer tonerabgabe | |
| DE2717504A1 (de) | Sortiersystem fuer diareproduktion | |
| DE2457280A1 (de) | Verfahren und vorrichtung zum vermindern der phasendifferenz zwischen zwei periodischen signalen | |
| DE3622404A1 (de) | Kopiergeraet mit verschiedenen auswaehlbaren funktionen | |
| DE2160718B2 (de) | Elektrophotographisches Kopiergerät mit einem wiederholt verwendbaren photoleitfähigen Aufzeichnungsband | |
| DE2026387A1 (de) | Elektrofotografischer Mehrfarbenverviel faltiger mit automatischer Behchtungssteue rang und Farbentrennung | |
| DE3011740C2 (de) | Einrichtung zum Verändern des Abbildungsmaßstabes in einem Fotokopiergerät | |
| DE1964853C3 (de) | Kopiergerät mit einer Bildabtasteinrichtung bei ortsfestem Bild und Projektionsobjektiv | |
| DE1810860A1 (de) | Einrichtung zum Auffinden ausgewaehlter Einzelbilder auf einem Rollmikrofilm | |
| DE2445831A1 (de) | Vorrichtung zur ermittlung von extremen dichtewerten | |
| DE3614081A1 (de) | Mikrofilm-lesegeraet und/oder printer mit zugriffseinrichtung zum auffinden der mikrofilmbilder | |
| DE3518255A1 (de) | Einrichtung zum aufzeichnen von farbbildern | |
| DE2164225A1 (de) | Vorrichtung zur Aufzeichnung alphanumerischer Schriftzeichen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8125 | Change of the main classification |
Ipc: G03G 15/04 |
|
| 8128 | New person/name/address of the agent |
Representative=s name: MUELLER-BOERNER, R., DIPL.-ING., 1000 BERLIN WEY, |
|
| 8130 | Withdrawal |