Drying assembly

Patent metadata

Field	Value
Publication number	US-9809022-B2
Application number	US-201615046383-A
Country	US
Kind code	B2
Filing date	Feb 17, 2016
Priority date	Sep 21, 2012
Publication date	Nov 7, 2017
Grant date	Nov 7, 2017

Abstract

A drying assembly is disclosed. An example apparatus includes fans; a temperature sensor; a print engine to access instructions to cause a printer to perform a printing operation on media; and a processor responsive to an output of the temperature sensor to control the fans to force air onto the media to cause a substantially uniform temperature to be maintained across a width of the media during the printing operation and to cause a sum of air flow output by the fans to be maintained at a substantially constant value.

First claim

What is claimed is:

1. An apparatus, comprising:
fans;
a temperature sensor;
a print engine to access instructions to cause a printer to perform a printing operation on media; and
a processor, responsive to an output of the temperature sensor, to:
determine an average temperature adjacent the fans;
when a difference between the average temperature and a temperature value of the respective one of the fans satisfies a threshold, adjust a speed of the respective one of the fans;
control the fans to force air onto the media to cause a substantially uniform temperature to be maintained across a width of the media during the printing operation; and
cause a sum of air flow output by the fans to be maintained at a substantially constant value.

2. An apparatus, comprising:
a print bar to print on media;
first and second heaters;
a first fan associated with the first heater;
a second fan associated with the second heater; and
a processor to access and monitor temperature values associated with the first and second fans, to maintain a sum of air flow generated by the first and second fans at a substantially constant value, and to dynamically adjust (1) the first fan, (2) the second fan, (3) the first heater, or (4) the second heater to maintain a substantially uniform temperature across a width of the media,
wherein the processor is to determine an average of the temperature values, and when a difference between the average temperature and the temperature value of a respective one of the first and second fans satisfies a threshold, the processor is to adjust a speed of the respective one of the first and second fans.

3. A computer readable medium comprising instructions that, when executed, cause a machine to:
obtain temperature values associated with first and second fans;
determine an average of the temperature values;
adjust the first fan or the second fan when a difference between the average temperature and a temperature value of the respective first and second fans satisfies a threshold to maintain a substantially uniform temperature across a width of media during a printing operation and to maintain a sum of air flow generated by the fans to be at a substantially constant value.

Assignees

• Hewlett Packard Development Co Lp

Inventors

• Perez Gellida Francisco Javier
• Zuza Irurueta Mikel
• Borrell Avila Oriol
• Valero Navazo Juan Manuel
• Bastardas Puigoriol Roger

Classifications

• B41J29/377

  Cooling or ventilating arrangements · CPC title

• B41F23/04

  by heat drying, by cooling, by applying powders {(B41F23/005 takes precedence)} · CPC title

• B41J23/04

  with driven mechanism arranged to be clutched to continuously- operating power source · CPC title

• B41J11/0015

  for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing (selective coating B41J2/2114) · CPC title

• F26B21/50

  Ducting arrangements from the source of air or other gases to the materials or objects being dried · CPC title