Printing system having multiple printheads and bypass lines

Patent metadata

Field	Value
Publication number	US-10737512-B2
Application number	US-201916460891-A
Country	US
Kind code	B2
Filing date	Jul 2, 2019
Priority date	Jul 31, 2009
Publication date	Aug 11, 2020
Grant date	Aug 11, 2020

Abstract

A printing system includes: an ink supply; a feed line coupled to the ink supply; a return line coupled to the ink supply; and a plurality of printhead modules each having an inlet port fluidically coupled to the feed line and an outlet port fluidically coupled to the return line. Each print module has a bypass line fluidically coupling the feed line to the return line. The bypass line is open for both priming and printing operations.

First claim

The invention claimed is:

1. A printing system comprising:
an ink supply;
a feed line coupled to the ink supply;
a return line coupled to the ink supply; and
a plurality of printhead modules each having an inlet port fluidically coupled to the feed line and an outlet port fluidically coupled to the return line; and

wherein each print module has a bypass line fluidically coupling the feed line to the return line, and wherein the bypass line is open for both priming and printing operations.

2. The printing system of claim 1 , wherein each printhead module comprises an ink manifold for delivering ink to a plurality of inkjet nozzles.

3. The printing system of claim 2 , wherein each ink manifold comprises a plurality of layers bonded together.

4. The printing system of claim 1 , further comprising a pumping system configured to prime the printhead modules.

5. The printing system of claim 1 , wherein the plurality of printhead modules are removably mounted on a carrier extending across a width of a media path.

6. The printing system of claim 1 , wherein the plurality of printhead modules are arranged for pagewide printing.

Assignees

• Memjet Technology Ltd

Inventors

• Rosati Robert
• Petch David
• Burney David
• Sykora Jim
• Regas Kenneth A
• Bound Andy
• Doherty Neil
• Dennis Scott
• Jones Ben
• Buyda Oksana
• Tonthat Locson
• Buyda Andrew
• Kirk Patrick
• Hunt Loren
• Dewey Jason
• Trinchera Jim
• Cressman Bill
• Zech Ron

Classifications

• B41J29/10

  Sound-deadening devices embodied in machines · CPC title

• B41J13/08

  {Conveyor} bands or like feeding devices · CPC title

• B41J11/02 Primary

  Platens · CPC title

• B41J29/377

  Cooling or ventilating arrangements · CPC title

• B41J11/0085 Primary

  Using suction for maintaining printing material flat (on rotatable drums B41J13/226) · CPC title