INK SUPPLYING DEVICE FOR PRINTER AND INK SUPPLYING METHOD
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United States of America Patent
Stats
-
N/A
Issued Date -
Dec 17, 2020
app pub date -
Nov 14, 2018
filing date -
Dec 7, 2017
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
An ink feeding device of a printing machine advances and retracts individual ductor rollers pneumatically between an ink fountain roller and an ink transfer roller. Along a fixed shaft, the individual ductor rollers are aligned, and the fixed shaft is provided with an air feeding pipe; electromagnetic valves for advancing the individual ductor rollers toward the ink fountain roller by the air from the air feeding pipe; and springs for retracting the individual ductor rollers toward the ink transfer roller. The controller makes the electromagnetic valves on in the order from a deep position to an inlet position along the air feeding pipe and advances the individual ductor rollers toward the ink fountain roller in this order.
First Claim
Other Claims data not available