HEAD DRIVE DEVICE AND IMAGE FORMATION APPARATUS
To provide a head drive device that switches an operation of each of drive circuits in accordance with temperatures of the drive circuits.SOLUTION: A head drive device comprises: a drive voltage waveform generation unit that generates a drive voltage waveform from a drive waveform based on drive wav...
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| creator | MARUOKA KENJI INOUE KOSUKE TSUKAGOSHI TOSHIHIRO HIDA KATSUHIRO MIZUTANI TOMOHIRO HASEBE RYOYA |
| description | To provide a head drive device that switches an operation of each of drive circuits in accordance with temperatures of the drive circuits.SOLUTION: A head drive device comprises: a drive voltage waveform generation unit that generates a drive voltage waveform from a drive waveform based on drive waveform data and includes a plurality of head drive units each of which applies this drive voltage waveform to a liquid ejection head; and a head drive switching unit that generates a drive waveform from the drive waveform data and, based on a predetermined condition, switches a way of transfer of a drive waveform to each head drive unit. The head drive switching unit detects an operating state of each head drive unit, and based on this operating state, calculates operation load of each head drive unit. When deviation of this operation load exceeds a predetermined threshold, the head drive switching unit switches a type of drive waveform data to be transferred to each head drive unit so as to reduce the deviation of the operation load.SELECTED DRAWING: Figure 6
【課題】複数の駆動回路の温度に応じて、各駆動回路の動作を切り替えるヘッド駆動装置を提供する。【解決手段】駆動波形データに基づく駆動波形から駆動電圧波形を生成し、当該駆動電圧波形を液体吐出ヘッドに印加する複数のヘッド駆動部を備える駆動電圧波形生成部と、駆動波形データから駆動波形を生成し、所定の条件に基づいて、各ヘッド駆動部への駆動波形の渡し方を切り替えるヘッド駆動切替部と、と有し、ヘッド駆動切替部は、各ヘッド駆動部の動作状況を検知し、当該動作状況に基づいて各ヘッド駆動部の動作負荷を算出し、当該動作負荷の偏りが所定の閾値を越えたとき、当該動作負荷の偏りが減少するように、各ヘッド駆動部に渡す駆動波形データの種類を切り替える、ヘッド駆動装置による。【選択図】図６ |
| format | Patent |
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【課題】複数の駆動回路の温度に応じて、各駆動回路の動作を切り替えるヘッド駆動装置を提供する。【解決手段】駆動波形データに基づく駆動波形から駆動電圧波形を生成し、当該駆動電圧波形を液体吐出ヘッドに印加する複数のヘッド駆動部を備える駆動電圧波形生成部と、駆動波形データから駆動波形を生成し、所定の条件に基づいて、各ヘッド駆動部への駆動波形の渡し方を切り替えるヘッド駆動切替部と、と有し、ヘッド駆動切替部は、各ヘッド駆動部の動作状況を検知し、当該動作状況に基づいて各ヘッド駆動部の動作負荷を算出し、当該動作負荷の偏りが所定の閾値を越えたとき、当該動作負荷の偏りが減少するように、各ヘッド駆動部に渡す駆動波形データの種類を切り替える、ヘッド駆動装置による。【選択図】図６</description><language>eng ; jpn</language><subject>CORRECTION OF TYPOGRAPHICAL ERRORS ; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME ; LINING MACHINES ; PERFORMING OPERATIONS ; PRINTING ; SELECTIVE PRINTING MECHANISMS ; STAMPS ; TRANSPORTING ; TYPEWRITERS</subject><creationdate>2020</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=20200917&DB=EPODOC&CC=JP&NR=2020146956A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200917&DB=EPODOC&CC=JP&NR=2020146956A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MARUOKA KENJI</creatorcontrib><creatorcontrib>INOUE KOSUKE</creatorcontrib><creatorcontrib>TSUKAGOSHI TOSHIHIRO</creatorcontrib><creatorcontrib>HIDA KATSUHIRO</creatorcontrib><creatorcontrib>MIZUTANI TOMOHIRO</creatorcontrib><creatorcontrib>HASEBE RYOYA</creatorcontrib><title>HEAD DRIVE DEVICE AND IMAGE FORMATION APPARATUS</title><description>To provide a head drive device that switches an operation of each of drive circuits in accordance with temperatures of the drive circuits.SOLUTION: A head drive device comprises: a drive voltage waveform generation unit that generates a drive voltage waveform from a drive waveform based on drive waveform data and includes a plurality of head drive units each of which applies this drive voltage waveform to a liquid ejection head; and a head drive switching unit that generates a drive waveform from the drive waveform data and, based on a predetermined condition, switches a way of transfer of a drive waveform to each head drive unit. The head drive switching unit detects an operating state of each head drive unit, and based on this operating state, calculates operation load of each head drive unit. When deviation of this operation load exceeds a predetermined threshold, the head drive switching unit switches a type of drive waveform data to be transferred to each head drive unit so as to reduce the deviation of the operation load.SELECTED DRAWING: Figure 6
【課題】複数の駆動回路の温度に応じて、各駆動回路の動作を切り替えるヘッド駆動装置を提供する。【解決手段】駆動波形データに基づく駆動波形から駆動電圧波形を生成し、当該駆動電圧波形を液体吐出ヘッドに印加する複数のヘッド駆動部を備える駆動電圧波形生成部と、駆動波形データから駆動波形を生成し、所定の条件に基づいて、各ヘッド駆動部への駆動波形の渡し方を切り替えるヘッド駆動切替部と、と有し、ヘッド駆動切替部は、各ヘッド駆動部の動作状況を検知し、当該動作状況に基づいて各ヘッド駆動部の動作負荷を算出し、当該動作負荷の偏りが所定の閾値を越えたとき、当該動作負荷の偏りが減少するように、各ヘッド駆動部に渡す駆動波形データの種類を切り替える、ヘッド駆動装置による。【選択図】図６</description><subject>CORRECTION OF TYPOGRAPHICAL ERRORS</subject><subject>i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME</subject><subject>LINING MACHINES</subject><subject>PERFORMING OPERATIONS</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>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZND3cHV0UXAJ8gxzVXBxDfN0dlVw9HNR8PR1dHdVcPMP8nUM8fT3U3AMCHAMcgwJDeZhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGRgaGJmaWpmaOxkQpAgAkRSYi</recordid><startdate>20200917</startdate><enddate>20200917</enddate><creator>MARUOKA KENJI</creator><creator>INOUE KOSUKE</creator><creator>TSUKAGOSHI TOSHIHIRO</creator><creator>HIDA KATSUHIRO</creator><creator>MIZUTANI TOMOHIRO</creator><creator>HASEBE RYOYA</creator><scope>EVB</scope></search><sort><creationdate>20200917</creationdate><title>HEAD DRIVE DEVICE AND IMAGE FORMATION APPARATUS</title><author>MARUOKA KENJI ; INOUE KOSUKE ; TSUKAGOSHI TOSHIHIRO ; HIDA KATSUHIRO ; MIZUTANI TOMOHIRO ; HASEBE RYOYA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2020146956A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2020</creationdate><topic>CORRECTION OF TYPOGRAPHICAL ERRORS</topic><topic>i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME</topic><topic>LINING MACHINES</topic><topic>PERFORMING OPERATIONS</topic><topic>PRINTING</topic><topic>SELECTIVE PRINTING MECHANISMS</topic><topic>STAMPS</topic><topic>TRANSPORTING</topic><topic>TYPEWRITERS</topic><toplevel>online_resources</toplevel><creatorcontrib>MARUOKA KENJI</creatorcontrib><creatorcontrib>INOUE KOSUKE</creatorcontrib><creatorcontrib>TSUKAGOSHI TOSHIHIRO</creatorcontrib><creatorcontrib>HIDA KATSUHIRO</creatorcontrib><creatorcontrib>MIZUTANI TOMOHIRO</creatorcontrib><creatorcontrib>HASEBE RYOYA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MARUOKA KENJI</au><au>INOUE KOSUKE</au><au>TSUKAGOSHI TOSHIHIRO</au><au>HIDA KATSUHIRO</au><au>MIZUTANI TOMOHIRO</au><au>HASEBE RYOYA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>HEAD DRIVE DEVICE AND IMAGE FORMATION APPARATUS</title><date>2020-09-17</date><risdate>2020</risdate><abstract>To provide a head drive device that switches an operation of each of drive circuits in accordance with temperatures of the drive circuits.SOLUTION: A head drive device comprises: a drive voltage waveform generation unit that generates a drive voltage waveform from a drive waveform based on drive waveform data and includes a plurality of head drive units each of which applies this drive voltage waveform to a liquid ejection head; and a head drive switching unit that generates a drive waveform from the drive waveform data and, based on a predetermined condition, switches a way of transfer of a drive waveform to each head drive unit. The head drive switching unit detects an operating state of each head drive unit, and based on this operating state, calculates operation load of each head drive unit. When deviation of this operation load exceeds a predetermined threshold, the head drive switching unit switches a type of drive waveform data to be transferred to each head drive unit so as to reduce the deviation of the operation load.SELECTED DRAWING: Figure 6
【課題】複数の駆動回路の温度に応じて、各駆動回路の動作を切り替えるヘッド駆動装置を提供する。【解決手段】駆動波形データに基づく駆動波形から駆動電圧波形を生成し、当該駆動電圧波形を液体吐出ヘッドに印加する複数のヘッド駆動部を備える駆動電圧波形生成部と、駆動波形データから駆動波形を生成し、所定の条件に基づいて、各ヘッド駆動部への駆動波形の渡し方を切り替えるヘッド駆動切替部と、と有し、ヘッド駆動切替部は、各ヘッド駆動部の動作状況を検知し、当該動作状況に基づいて各ヘッド駆動部の動作負荷を算出し、当該動作負荷の偏りが所定の閾値を越えたとき、当該動作負荷の偏りが減少するように、各ヘッド駆動部に渡す駆動波形データの種類を切り替える、ヘッド駆動装置による。【選択図】図６</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CORRECTION OF TYPOGRAPHICAL ERRORS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES PERFORMING OPERATIONS PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS |
| title | HEAD DRIVE DEVICE AND IMAGE FORMATION APPARATUS |
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