Peter J Zelten

US Patent:

7825945, Nov 2, 2010

Filed:

Sep 17, 2007

Appl. No.:

11/856482

Inventors:

Brian Busch - Sudbury MA, US
Stephen J. Telfer - Arlington MA, US
Juan Carlos Van Dijk - Sudbury MA, US
William T. Vetterling - Lexington MA, US
Peter Zelten - Melrose MA, US

Assignee:

Zink Imaging, Inc. - Bedford MA

International Classification:

B41J 29/377

US Classification:

347223

Abstract:

The present invention provides a thermal printer in which the temperature of the thermal printing head can be modulated by means of an auxiliary heat sink, and methods for printing using such a thermal printer.

US Patent:

8098269, Jan 17, 2012

Filed:

Sep 1, 2010

Appl. No.:

12/873796

Inventors:

Brian Busch - Sudbury MA, US
Chien Liu - Wayland MA, US
Stephen J. Telfer - Arlington MA, US
William T. Vetterling - Lexington MA, US
Peter Zelten - Melrose MA, US

Assignee:

Zink Imaging, Inc. - Bedford MA

International Classification:

B41J 2/35

US Classification:

347211, 347171, 347172, 347175

Abstract:

In one aspect of the invention there is disclosed a multicolor thermal imaging system wherein different heating elements on a thermal print head can print on different color-forming layers of a multicolor thermal imaging member in a single pass. The line-printing time is divided into segments, each of which is divided into a plurality of subintervals. All of the pulses within the segments have the same energy. In one embodiment, every pulse has the same amplitude and duration. Different colors are selected for printing during the different segments by varying the fraction of subintervals that contain pulses. This technique allows multiple colors to be printed using a thermal print head with a single strobe signal line. Pulsing patterns may be chosen to reduce the coincidence of pulses provided to multiple print head elements, thereby reducing the peak power requirements of the print head.

US Patent:

20080238967, Oct 2, 2008

Filed:

Jan 30, 2008

Appl. No.:

12/022955

Inventors:

Brian Busch - Sudbury MA, US
Chien Liu - Wayland MA, US
Stephen J. Telfer - Arlington MA, US
William T. Vetterling - Lexington MA, US
Peter Zelten - Melrose MA, US

International Classification:

B41J 29/38

US Classification:

347 11

Abstract:

In one aspect of the invention there is disclosed a multicolor thermal imaging system wherein different heating elements on a thermal print head can print on different color-forming layers of a multicolor thermal imaging member in a single pass. The line-printing time is divided into segments, each of which is divided into a plurality of subintervals. All of the pulses within the segments have the same energy. In one embodiment, every pulse has the same amplitude and duration. Different colors are selected for printing during the different segments by varying the fraction of subintervals that contain pulses. This technique allows multiple colors to be printed using a thermal print head with a single strobe signal line. Pulsing patterns may be chosen to reduce the coincidence of pulses provided to multiple print head elements, thereby reducing the peak power requirements of the print head.

US Patent:

20110102535, May 5, 2011

Filed:

Nov 2, 2010

Appl. No.:

12/938002

Inventors:

Brian Busch - Sudbury MA, US
Stephen J. Telfer - Arlington MA, US
Juan Carlos Van Dijk - Sudbury MA, US
William T. Vetterling - Lexington MA, US
Peter Zelten - Melrose MA, US

International Classification:

B41J 2/375

US Classification:

347223

Abstract:

The present invention provides a thermal printer in which the temperature of the thermal printing head can be modulated by means of an auxiliary heat sink, and methods for printing using such a thermal printer.

US Patent:

20120075401, Mar 29, 2012

Filed:

Dec 7, 2011

Appl. No.:

13/313921

Inventors:

Brian D. Busch - Sudbury MA, US
Chien Liu - Wayland MA, US
Stephen J. Telfer - Arlington MA, US
William T. Vetterling - Lexington MA, US
Peter Zelten - Melrose MA, US

International Classification:

B41J 2/35

US Classification:

347211

Abstract:

In one aspect of the invention there is disclosed a multicolor thermal imaging system wherein different heating elements on a thermal print head can print on different color-forming layers of a multicolor thermal imaging member in a single pass. The line-printing time is divided into segments, each of which is divided into a plurality of subintervals. All of the pulses within the segments have the same energy. In one embodiment, every pulse has the same amplitude and duration. Different colors are selected for printing during the different segments by varying the fraction of subintervals that contain pulses. This technique allows multiple colors to be printed using a thermal print head with a single strobe signal line. Pulsing patterns may be chosen to reduce the coincidence of pulses provided to multiple print head elements, thereby reducing the peak power requirements of the print head.