Low friction doctor blade
A device within an image forming apparatus (100) for positioning a doctor blade (121) against a developer roller (124) and preventing toner leakage. The device includes a developer housing (129) for containing the developer roller (124) and the doctor blade (121). A biasing member (50) is positioned...
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| creator | BUCHANAN, JOHN ANDREW PALUMBO, FRANKLIN JOSEPH NEWMAN, BENJAMININ KEITH |
| description | A device within an image forming apparatus (100) for positioning a doctor blade (121) against a developer roller (124) and preventing toner leakage. The device includes a developer housing (129) for containing the developer roller (124) and the doctor blade (121). A biasing member (50) is positioned adjacent to the doctor blade for forcing the doctor blade (121) against the developer roller (124) for controlling the mass flow and charge level of the toner. The doctor blade (50) is supported by retention stops (14, 16) on a front edge and a pair of supports (131) on the back edge. Toner is prevented from leaking through the device by a flap seal (133) positioned along the doctor blade back side and a seal positioned between each end of the doctor blade end and developer housing (129). The invention provides for the doctor blade (121) to be freely positioned between the retention stops (14, 16) developer housing (129), and seals (133) providing for the doctor blade (121) to contact the developer roller (124) in a consistent manner. |
| format | Patent |
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The device includes a developer housing (129) for containing the developer roller (124) and the doctor blade (121). A biasing member (50) is positioned adjacent to the doctor blade for forcing the doctor blade (121) against the developer roller (124) for controlling the mass flow and charge level of the toner. The doctor blade (50) is supported by retention stops (14, 16) on a front edge and a pair of supports (131) on the back edge. Toner is prevented from leaking through the device by a flap seal (133) positioned along the doctor blade back side and a seal positioned between each end of the doctor blade end and developer housing (129). The invention provides for the doctor blade (121) to be freely positioned between the retention stops (14, 16) developer housing (129), and seals (133) providing for the doctor blade (121) to contact the developer roller (124) in a consistent manner.</description><language>eng ; fre ; ger</language><subject>CINEMATOGRAPHY ; CORRECTION OF TYPOGRAPHICAL ERRORS ; ELECTROGRAPHY ; ELECTROPHOTOGRAPHY ; HOLOGRAPHY ; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME ; LINING MACHINES ; MAGNETOGRAPHY ; PERFORMING OPERATIONS ; PHOTOGRAPHY ; PHYSICS ; PRINTING ; SELECTIVE PRINTING MECHANISMS ; STAMPS ; TRANSPORTING ; TYPEWRITERS</subject><creationdate>2006</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20060301&DB=EPODOC&CC=EP&NR=1087266B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20060301&DB=EPODOC&CC=EP&NR=1087266B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BUCHANAN, JOHN ANDREW</creatorcontrib><creatorcontrib>PALUMBO, FRANKLIN JOSEPH</creatorcontrib><creatorcontrib>NEWMAN, BENJAMININ KEITH</creatorcontrib><title>Low friction doctor blade</title><description>A device within an image forming apparatus (100) for positioning a doctor blade (121) against a developer roller (124) and preventing toner leakage. The device includes a developer housing (129) for containing the developer roller (124) and the doctor blade (121). A biasing member (50) is positioned adjacent to the doctor blade for forcing the doctor blade (121) against the developer roller (124) for controlling the mass flow and charge level of the toner. The doctor blade (50) is supported by retention stops (14, 16) on a front edge and a pair of supports (131) on the back edge. Toner is prevented from leaking through the device by a flap seal (133) positioned along the doctor blade back side and a seal positioned between each end of the doctor blade end and developer housing (129). The invention provides for the doctor blade (121) to be freely positioned between the retention stops (14, 16) developer housing (129), and seals (133) providing for the doctor blade (121) to contact the developer roller (124) in a consistent manner.</description><subject>CINEMATOGRAPHY</subject><subject>CORRECTION OF TYPOGRAPHICAL ERRORS</subject><subject>ELECTROGRAPHY</subject><subject>ELECTROPHOTOGRAPHY</subject><subject>HOLOGRAPHY</subject><subject>i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME</subject><subject>LINING MACHINES</subject><subject>MAGNETOGRAPHY</subject><subject>PERFORMING OPERATIONS</subject><subject>PHOTOGRAPHY</subject><subject>PHYSICS</subject><subject>PRINTING</subject><subject>SELECTIVE PRINTING MECHANISMS</subject><subject>STAMPS</subject><subject>TRANSPORTING</subject><subject>TYPEWRITERS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2006</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJD0yS9XSCvKTC7JzM9TSMlPLskvUkjKSUxJ5WFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8a4BhgYW5kZmZk6GxkQoAQDMmiIZ</recordid><startdate>20060301</startdate><enddate>20060301</enddate><creator>BUCHANAN, JOHN ANDREW</creator><creator>PALUMBO, FRANKLIN JOSEPH</creator><creator>NEWMAN, BENJAMININ KEITH</creator><scope>EVB</scope></search><sort><creationdate>20060301</creationdate><title>Low friction doctor blade</title><author>BUCHANAN, JOHN ANDREW ; PALUMBO, FRANKLIN JOSEPH ; NEWMAN, BENJAMININ KEITH</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP1087266B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2006</creationdate><topic>CINEMATOGRAPHY</topic><topic>CORRECTION OF TYPOGRAPHICAL ERRORS</topic><topic>ELECTROGRAPHY</topic><topic>ELECTROPHOTOGRAPHY</topic><topic>HOLOGRAPHY</topic><topic>i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME</topic><topic>LINING MACHINES</topic><topic>MAGNETOGRAPHY</topic><topic>PERFORMING OPERATIONS</topic><topic>PHOTOGRAPHY</topic><topic>PHYSICS</topic><topic>PRINTING</topic><topic>SELECTIVE PRINTING MECHANISMS</topic><topic>STAMPS</topic><topic>TRANSPORTING</topic><topic>TYPEWRITERS</topic><toplevel>online_resources</toplevel><creatorcontrib>BUCHANAN, JOHN ANDREW</creatorcontrib><creatorcontrib>PALUMBO, FRANKLIN JOSEPH</creatorcontrib><creatorcontrib>NEWMAN, BENJAMININ KEITH</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>BUCHANAN, JOHN ANDREW</au><au>PALUMBO, FRANKLIN JOSEPH</au><au>NEWMAN, BENJAMININ KEITH</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Low friction doctor blade</title><date>2006-03-01</date><risdate>2006</risdate><abstract>A device within an image forming apparatus (100) for positioning a doctor blade (121) against a developer roller (124) and preventing toner leakage. The device includes a developer housing (129) for containing the developer roller (124) and the doctor blade (121). A biasing member (50) is positioned adjacent to the doctor blade for forcing the doctor blade (121) against the developer roller (124) for controlling the mass flow and charge level of the toner. The doctor blade (50) is supported by retention stops (14, 16) on a front edge and a pair of supports (131) on the back edge. Toner is prevented from leaking through the device by a flap seal (133) positioned along the doctor blade back side and a seal positioned between each end of the doctor blade end and developer housing (129). The invention provides for the doctor blade (121) to be freely positioned between the retention stops (14, 16) developer housing (129), and seals (133) providing for the doctor blade (121) to contact the developer roller (124) in a consistent manner.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | CINEMATOGRAPHY CORRECTION OF TYPOGRAPHICAL ERRORS ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES MAGNETOGRAPHY PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS |
| title | Low friction doctor blade |
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