Bruce K Norlund

US Patent:

43475256, Aug 31, 1982

Filed:

Sep 25, 1980

Appl. No.:

6/190804

Inventors:

Robert A. Moore - Amherst NH
Bruce K. Norlund - Keene NH
Harold S. Kontrovitz - Keene NH
Clayton B. Robbins - Keene NH
Jeffrey B. Brooks - Keene NH

Assignee:

Markem Corporation - Keene NH

International Classification:

G01D 1506
G03G 1522

US Classification:

3461531

Abstract:

In the label printing system of the present invention, a strip of adhesive-backed label stock capable of receiving a latent charge image and having a releasable backing layer is drawn continuously from a supply reel and passed successively through an electrostatic print head, a developer, a pressure fixer, and a rotary die or butt cutter for separating the printed stock into individual labels on the uncut releasable backing layer. The latent imaging of each label at the electrostatic print head is carried out at defined discrete locations on the label stock. These locations may be defined in response to a synchronization signal produced by an angular position detector cooperating with the rotary cutter. The synchronization signal is indicative of a predetermined instantaneous rotational orientation of the cutting elements on the rotary cutting member, thereby insuring that the printed label indicia are properly centered within the label edges after die or butt cutting. When die cutting is used, separate takeup reels are provided for the waste cuttings and for the finished labels on the uncut releasable backing layer.

US Patent:

42813352, Jul 28, 1981

Filed:

Sep 25, 1980

Appl. No.:

6/190508

Inventors:

Robert A. Moore - Amherst NH
Bruce K. Norlund - Keene NH
Harold S. Kontrovitz - Keene NH
Clayton B. Robbins - Keene NH
Jeffrey B. Brooks - Keene NH

Assignee:

Markem Corporation - Keene NH

International Classification:

G01D 1506
G03G 1522

US Classification:

3461531

Abstract:

A strip of adhesive-backed label stock capable of receiving a latent charge image and having a releasable backing layer is drawn continuously from a supply reel and passed successively through an electrostatic print head, a developer, a pressure fixer, and a rotary die or butt cutter for separating the printed stock into individual labels on the uncut releasable backing layer. The latent imaging of each label at the electrostatic print head is commenced in response to a synchronization signal produced by an angular position detector cooperating with the rotary cutter. The synchronization signal is indicative of a predetermined instantaneous rotational orientation of the cutting elements on the rotary cutting member, thereby insuring that the printed label indicia are properly centered within the label edges after die or butt cutting. When die cutting is used, separate takeup reels are provided for the waste cuttings and for the finished labels on the uncut releasable backing layer.