Pressure regulation system for multi-head ink jet printing appar

Details Pressure regulation system for multi-head ink jet printing appar Pressure regulation system for multi-head ink jet printing appar

1986-12-22

1988-03-29

Goldberg, E. A.

Recorders

Record receiver deforming

346140R, 134 12, 417 36, 417 38, 417 44, G01D 1518, F04B 4900

Patent

active

047347112

ABSTRACT:
A regulation system controls the print head pressures of a plurality of discrete ink jet printers of the continuous type to the same nominal pressure, while the printers use a common drive source to their own ink pumps. The regulation system includes bypass pressure detection passages extending from a tap in each printer's circulation system to a detection reservoir. Each bypass passage includes a bladder/valve portion whose exterior is in fluid communication with a detection fluid enclosed within the common reservoir. A transducer detects the pressure of the common reservoir and signals control of the common pump drive so as to regulate all print head pressures to the same nominal operating pressure.

REFERENCES:
patent: 3787882 (1974-01-01), Fillmore et al.
patent: 3958898 (1976-05-01), Abrahams et al.
patent: 4318114 (1982-03-01), Huliba
patent: 4511311 (1985-04-01), Olson

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