IMAGE FORMING APPARATUS
PROBLEM TO BE SOLVED: To provide an image forming apparatus that hinders color drift and image failure by suitably controlling a peripheral speed difference between a photoreceptor drum and an intermediate transfer belt and a peripheral speed difference between the intermediate transfer belt and a s...
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| creator | IKEDA YOSHIMITSU |
| description | PROBLEM TO BE SOLVED: To provide an image forming apparatus that hinders color drift and image failure by suitably controlling a peripheral speed difference between a photoreceptor drum and an intermediate transfer belt and a peripheral speed difference between the intermediate transfer belt and a secondary transfer roller.SOLUTION: A secondary transfer motor drive control unit 155 drives a secondary transfer motor 300 so as to satisfy a follower condition for an intermediate transfer belt 51 and a secondary transfer roller 81. By satisfying the follower condition, the peripheral speed difference between the intermediate transfer belt 51 and the secondary transfer roller 81 is suitably controlled to such a degree that color drift and image failure are hindered. The follower condition means that, for example, if TL≥Tm, TL-Tm≤uF is established, and if TL-Tm≤uF, Tm-TL |
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By satisfying the follower condition, the peripheral speed difference between the intermediate transfer belt 51 and the secondary transfer roller 81 is suitably controlled to such a degree that color drift and image failure are hindered. The follower condition means that, for example, if TL≥Tm, TL-Tm≤uF is established, and if TL-Tm≤uF, Tm-TL<uF is established. In the expressions, u represents a coefficient of static friction between the intermediate transfer belt 51 and the secondary transfer roller 81, F represents a contact pressure of the intermediate transfer belt 51 (secondary transfer counter roller 55) with the secondary transfer roller 81, TL is a load torque of the secondary transfer roller 81, and Tm is a drive torque of the secondary transfer motor 300.</description><language>eng</language><subject>CINEMATOGRAPHY ; ELECTROGRAPHY ; ELECTROPHOTOGRAPHY ; HOLOGRAPHY ; MAGNETOGRAPHY ; PHOTOGRAPHY ; PHYSICS</subject><creationdate>2013</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=20130425&DB=EPODOC&CC=JP&NR=2013076948A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20130425&DB=EPODOC&CC=JP&NR=2013076948A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>IKEDA YOSHIMITSU</creatorcontrib><title>IMAGE FORMING APPARATUS</title><description>PROBLEM TO BE SOLVED: To provide an image forming apparatus that hinders color drift and image failure by suitably controlling a peripheral speed difference between a photoreceptor drum and an intermediate transfer belt and a peripheral speed difference between the intermediate transfer belt and a secondary transfer roller.SOLUTION: A secondary transfer motor drive control unit 155 drives a secondary transfer motor 300 so as to satisfy a follower condition for an intermediate transfer belt 51 and a secondary transfer roller 81. By satisfying the follower condition, the peripheral speed difference between the intermediate transfer belt 51 and the secondary transfer roller 81 is suitably controlled to such a degree that color drift and image failure are hindered. The follower condition means that, for example, if TL≥Tm, TL-Tm≤uF is established, and if TL-Tm≤uF, Tm-TL<uF is established. In the expressions, u represents a coefficient of static friction between the intermediate transfer belt 51 and the secondary transfer roller 81, F represents a contact pressure of the intermediate transfer belt 51 (secondary transfer counter roller 55) with the secondary transfer roller 81, TL is a load torque of the secondary transfer roller 81, and Tm is a drive torque of the secondary transfer motor 300.</description><subject>CINEMATOGRAPHY</subject><subject>ELECTROGRAPHY</subject><subject>ELECTROPHOTOGRAPHY</subject><subject>HOLOGRAPHY</subject><subject>MAGNETOGRAPHY</subject><subject>PHOTOGRAPHY</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2013</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBD39HV0d1Vw8w_y9fRzV3AMCHAMcgwJDeZhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGhsYG5maWJhaOxkQpAgAO_h_o</recordid><startdate>20130425</startdate><enddate>20130425</enddate><creator>IKEDA YOSHIMITSU</creator><scope>EVB</scope></search><sort><creationdate>20130425</creationdate><title>IMAGE FORMING APPARATUS</title><author>IKEDA YOSHIMITSU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2013076948A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2013</creationdate><topic>CINEMATOGRAPHY</topic><topic>ELECTROGRAPHY</topic><topic>ELECTROPHOTOGRAPHY</topic><topic>HOLOGRAPHY</topic><topic>MAGNETOGRAPHY</topic><topic>PHOTOGRAPHY</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>IKEDA YOSHIMITSU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>IKEDA YOSHIMITSU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>IMAGE FORMING APPARATUS</title><date>2013-04-25</date><risdate>2013</risdate><abstract>PROBLEM TO BE SOLVED: To provide an image forming apparatus that hinders color drift and image failure by suitably controlling a peripheral speed difference between a photoreceptor drum and an intermediate transfer belt and a peripheral speed difference between the intermediate transfer belt and a secondary transfer roller.SOLUTION: A secondary transfer motor drive control unit 155 drives a secondary transfer motor 300 so as to satisfy a follower condition for an intermediate transfer belt 51 and a secondary transfer roller 81. By satisfying the follower condition, the peripheral speed difference between the intermediate transfer belt 51 and the secondary transfer roller 81 is suitably controlled to such a degree that color drift and image failure are hindered. The follower condition means that, for example, if TL≥Tm, TL-Tm≤uF is established, and if TL-Tm≤uF, Tm-TL<uF is established. In the expressions, u represents a coefficient of static friction between the intermediate transfer belt 51 and the secondary transfer roller 81, F represents a contact pressure of the intermediate transfer belt 51 (secondary transfer counter roller 55) with the secondary transfer roller 81, TL is a load torque of the secondary transfer roller 81, and Tm is a drive torque of the secondary transfer motor 300.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CINEMATOGRAPHY ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY MAGNETOGRAPHY PHOTOGRAPHY PHYSICS |
| title | IMAGE FORMING APPARATUS |
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