Print roll assembly

• US 20060214012A1
• Filed: 05/30/2006
• Published: 09/28/2006
• Est. Priority Date: 03/16/1998
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Silverbrook Research Pty Limited
• Inventors: Silverbrook, Kia, Walmsley, Simon Robert
• Granted Patent: US 7,524,045 B2
• Time in Patent Office: Days
• US Class Current: 235/494
• CPC Class Codes: B41J 15/04 Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
• CPC Class Codes: B41J 2/175 Ink supply systems ; Circuit parts therefor
• CPC Class Codes: B41J 2002/14362 Assembling elements of heads
• CPC Class Codes: B41J 2002/14419 Manifold
• CPC Class Codes: B41J 2002/14491 Electrical connection
• CPC Class Codes: B41J 2202/21 Line printing
• CPC Class Codes: B41J 3/445 Printers integrated in other types of apparatus, e.g. printers integrated in cameras
• CPC Class Codes: G06K 19/06 characterised by the kind of the digital marking, e.g. shape, nature, code

Abstract

The present invention relates to a print roll assembly. The print roll assembly includes a print roll which, in turn, includes an elongate former carrying a continuous sheet of print media. An ink supply for being received within the former is also provided, and defines a plurality of ink chambers for each receiving a respective type of ink. The assembly may further include a plurality of absorbent sponges for each being received within a respective ink chamber.

Claims

1. A print roll assembly including:

a print roll including an elongate former carrying a continuous sheet of print media; and

an ink supply for being received within the former, and which defines a plurality of ink chambers for each receiving a respective type of ink.

2. A print roll assembly as claimed in claim 1, further including a plurality of absorbent sponges for each being received within a respective ink chamber.

3. A print roll assembly as claimed in claim 1, wherein the ink supply further includes a plurality of outwardly extending ribs for engaging with the former.

4. A print roll assembly as claimed in claim 1, wherein the ink supply is elongate and includes a pair of stops located at either end, each stop defining a plurality of breathing channels which are each located in register with a respective ink chamber.

5. A print roll assembly as claimed in claim 4, wherein each breathing channel is serpentine in shape.

6. A print roll assembly as claimed in claim 1 further including a triplet of pinch rollers which is arranged to reduce the inherent bend in the print media when unwinding the print media from the roll.

7. A print roll assembly as claimed in claim 1, further including a housing for housing the print roll.

8. A print roll assembly as claimed in claim 7, wherein the housing includes first and second panels for engaging together to surround the print roll.