Inkjet printing apparatus, method for adjusting flow path resistance, and printing method

The inkjet printing apparatus adjusts flow path resistances to stabilize nozzle pressure and ensure consistent ink ejection, addressing the challenge of printing wide images in a single pass with non-horizontal nozzle arrangements.

JP7894717B2Active Publication Date: 2026-07-24RISO KAGAKU CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
RISO KAGAKU CORP
Filing Date
2022-03-28
Publication Date
2026-07-24

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Abstract

To enable a wide image to be printed at one time, in performing printing while discharging ink in a direction which is not orthogonal to a horizontal direction.SOLUTION: Respective passage resistance of a pressurization-side upper head pathway 42, a pressurization-side lower head pathway 43, a negative pressure-side upper head pathway 44 and a negative pressure-side lower head pathway 45 is set so that nozzle pressure of nozzles 13 of nozzle rows 14 in two inkjet heads 11 is equal to pressure in a stable discharge range and ink flows at a flow rate which is same as a flow rate necessary for the two inkjet heads 11.SELECTED DRAWING: Figure 5
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