GB1514309A - Electrophotographic copying apparatus - Google Patents
Electrophotographic copying apparatusInfo
- Publication number
- GB1514309A GB1514309A GB48200/75A GB4820075A GB1514309A GB 1514309 A GB1514309 A GB 1514309A GB 48200/75 A GB48200/75 A GB 48200/75A GB 4820075 A GB4820075 A GB 4820075A GB 1514309 A GB1514309 A GB 1514309A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- machine
- nov
- heater
- copy sheet
- 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
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/20—Humidity or temperature control also ozone evacuation; Internal apparatus environment control
- G03G21/206—Conducting air through the machine, e.g. for cooling, filtering, removing gases like ozone
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/20—Humidity or temperature control also ozone evacuation; Internal apparatus environment control
- G03G21/203—Humidity
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Atmospheric Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
1514309 Electrophotographic copying machines MINOLTA CAMERA KK 24 Nov 1975 [30 Nov 1974 4 Dec 1974 16 Jan 1975] 48200/75 Heading B6C The sensitive surface 2a of a photoconductive drum 2 in a photocopying machine is freed from moisture prior to a copying operation by means of a heater 18 so disposed within the machine that the drum 2 is located within a hot air stream emanating from said heater 18. Preferably the machine includes fans 8, 7 for introducing fresh air into the vicinity of the drum 2 via duct 10 and extracting it via ducts 11, 16 to remove ozone and nitrogen oxides formed in the corotron 3. Fan 7 also extracts air heated by the exposure lamp 6. The extraction system may include an ozone-absorbing filter (f 1 ), Fig. 11 (not shown). In the machine shown, the latent electrostatic image formed on the drum 2 is transferred to a copy sheet on which it is liquid developed. The invention is also applicable to copiers using dry development of the image on the drum 2 and transfer of the resultant toner image to a copy sheet.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP49137974A JPS5163630A (en) | 1974-11-30 | 1974-11-30 | |
JP49139735A JPS5165941A (en) | 1974-12-04 | 1974-12-04 | |
JP814775U JPS5190839U (en) | 1975-01-16 | 1975-01-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1514309A true GB1514309A (en) | 1978-06-14 |
Family
ID=27277902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB48200/75A Expired GB1514309A (en) | 1974-11-30 | 1975-11-24 | Electrophotographic copying apparatus |
Country Status (5)
Country | Link |
---|---|
US (1) | USRE30897E (en) |
CA (1) | CA1085446A (en) |
DE (1) | DE2553692A1 (en) |
FR (1) | FR2293003A1 (en) |
GB (1) | GB1514309A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4104321A1 (en) * | 1990-02-13 | 1991-08-14 | Ricoh Kk | DEVICE FOR ELIMINATING OZONE PRODUCED IN AN IMAGING DEVICE |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2750485C2 (en) * | 1977-11-11 | 1982-06-24 | Agfa-Gevaert Ag, 5090 Leverkusen | Electrostatic copier |
JP2578841B2 (en) * | 1987-11-12 | 1997-02-05 | キヤノン株式会社 | Image forming device |
US5307132A (en) * | 1987-11-12 | 1994-04-26 | Canon Kabushiki Kaisha | Image forming apparatus having a controller for discharging air in response to a heating condition of an image fixing device |
US5128720A (en) * | 1991-01-18 | 1992-07-07 | Eastman Kodak Company | Device for collecting contamination products and ozone from a corona charger |
US5291247A (en) * | 1992-09-02 | 1994-03-01 | Eastman Kodak Company | Image forming apparatus having a corona ventilating means |
JP4021712B2 (en) * | 2002-06-13 | 2007-12-12 | 株式会社リコー | Electrophotographic image forming apparatus and copying machine |
JP4219864B2 (en) * | 2004-07-06 | 2009-02-04 | シャープ株式会社 | Image forming apparatus |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3324291A (en) * | 1964-07-06 | 1967-06-06 | Xerox Corp | Corona generating device with means to cause air flow therethrough to maintain the parts free of dust accumulation |
US3332328A (en) * | 1965-03-01 | 1967-07-25 | Xerox Corp | Xerographic developer seal and process |
US3382360A (en) * | 1965-09-10 | 1968-05-07 | Xerox Corp | Xerographic charging system having means for providing an air cushion between the charging device and the xerographic drum |
US3386365A (en) * | 1967-01-16 | 1968-06-04 | Donald D. Jensen | Apparatus and method for producing a fog curtain heat shield |
JPS5110785B1 (en) * | 1971-01-16 | 1976-04-06 | ||
JPS4877844A (en) * | 1972-01-19 | 1973-10-19 | ||
US3936184A (en) * | 1973-05-25 | 1976-02-03 | Canon Kabushiki Kaisha | Electrophotographic copying machine |
-
1975
- 1975-11-18 CA CA239,866A patent/CA1085446A/en not_active Expired
- 1975-11-24 GB GB48200/75A patent/GB1514309A/en not_active Expired
- 1975-11-28 DE DE19752553692 patent/DE2553692A1/en active Pending
- 1975-11-28 FR FR7536569A patent/FR2293003A1/en active Pending
-
1980
- 1980-06-24 US US06/162,610 patent/USRE30897E/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4104321A1 (en) * | 1990-02-13 | 1991-08-14 | Ricoh Kk | DEVICE FOR ELIMINATING OZONE PRODUCED IN AN IMAGING DEVICE |
US5128110A (en) * | 1990-02-13 | 1992-07-07 | Ricoh Company, Ltd. | Ozone removing device for image forming equipment |
DE4104321C2 (en) * | 1990-02-13 | 1992-08-06 | Ricoh Co., Ltd., Tokio/Tokyo, Jp |
Also Published As
Publication number | Publication date |
---|---|
USRE30897E (en) | 1982-04-06 |
DE2553692A1 (en) | 1976-08-12 |
CA1085446A (en) | 1980-09-09 |
FR2293003A1 (en) | 1976-06-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |