LIQUID JET DEVICE

• Main Authors: YOSHIDA KOTARO, MATSUO KENICHIRO
• Format: Patent
• Language: English; Japanese
• Published: 02.09.2021
• 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

To provide a liquid jet device configured so that a density difference between a going-passage and a returning-passage can be suppressed.SOLUTION: An inkjet-type recording device comprises: a recording head 1 having a nozzle for discharging ink droplets toward a recording sheet S formed therein and comprising a nozzle surface 20a to which the nozzle opens; a carriage mechanism that moves the recording head 1 in a going-passage direction parallel to the nozzle surface 20a and a returning-passage direction opposite to the going-passage direction; a platen 9 that supports the recording sheet S at a position opposing to the nozzle surface 20a; and an electric field control part 240 that controls a potential difference between the recording head 1 and the platen 9. The electric field control part 240 performs control so that the potential difference between the recording head 1 and the platen 9 in a first period of time during which ink droplets are discharged from the nozzle and then impact on the recording sheet S differs between when the recording head 1 is moving in the going-passage direction and when the recording head 1 is moving in the returning-passage direction.SELECTED DRAWING: Figure 7 【課題】往路および復路での濃淡差を抑えることが可能な液体噴射装置を提供する。【解決手段】インクジェット式記録装置は、記録シートＳに向けてインク滴を吐出するノズルが形成され、ノズルが開口するノズル面２０ａを備える記録ヘッド１と、記録ヘッド１を、ノズル面２０ａに平行な往路方向と、往路方向とは反対方向の復路方向とに移動させるキャリッジ機構と、ノズル面２０ａと対向する位置で記録シートＳを支持するプラテン９と、記録ヘッド１とプラテン９との間の電位差を制御する電界制御部２４０と、を備え、電界制御部２４０は、ノズルからインク滴が吐出されてから記録シートＳに着弾するまでの第１の期間における記録ヘッド１とプラテン９との間の電位差を、記録ヘッド１が往路方向に移動している場合と、記録ヘッド１が復路方向に移動している場合とで、異なる状態に制御する。【選択図】図７