Jason M Dean

US Patent:

20120044292, Feb 23, 2012

Filed:

Aug 17, 2010

Appl. No.:

12/858307

Inventors:

Bradley Helsel - Rindge NH, US
Jason Dean - Swanzey NH, US
Mark Noyes - Keene NH, US

Assignee:

MARKEM-IMAJE CORPORATION - Keene NH

International Classification:

B41J 29/38

US Classification:

347 14

Abstract:

According to an aspect of the disclosed subject matter, a controller to maintain negative pressure in a print head of a printing system includes: control loop feedback logic to receive a set point and an output of a vacuum sensor associated with the print head; a regulator coupled with an output of the feedback logic; and a driver coupled with the regulator and configured to output a drive signal to a pump, which is associated with the print head, responsive to an output of the regulator. According to another aspect of the disclosed subject matter, a vacuum control assembly for a printing system includes: a body having one or more associated accumulators; a pump coupled with the body; and one or more flexible tubes coupled with the one or more accumulators associated with the body and configured to restrict air flow within the vacuum control assembly.