Printer having guide for guiding print media around curved media path

Patent metadata

Field	Value
Publication number	US-10160233-B2
Application number	US-201715438658-A
Country	US
Kind code	B2
Filing date	Feb 21, 2017
Priority date	Jul 5, 2012
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

A printer having a beltless guide for guiding print media around a curved media feed path. The guide includes: first and second opposed guide surfaces for guiding print media therebetween; and a chicane corresponding to a point of inflection in the curved media feed path. The media path does not follow a curvature of the chicane and the chicane is configured to transfer print media from contact with the second surface to contact with the first surface or vice versa.

First claim

The invention claimed is:

1. A printer having a beltless guide for guiding print media around a curved media path suitable for duplex printing, the guide comprising: first and second opposed guide surfaces for guiding print media therebetween; and at least one chicane corresponding to a point of inflection in the curved media feed path,
wherein:
the media path does not follow a curvature of the chicane;
the chicane is configured to transfer, in a gap across the chicane, print media from contact with the second surface to contact with the first surface or vice versa;
the media path is not twisted within the gap about a longitudinal axis oriented in a media feed direction.

2. The printer of claim 1 , wherein the guide comprises a double-chicane configured to provide tangential points of contact for print media on respective first and second guide surfaces.

3. The printer of claim 1 , wherein the first and second guide surfaces are separated from each other by a distance of less than 5 mm along the chicane.

4. The printer of claim 1 , wherein the first and second guide surfaces have corresponding curvatures around the curved media path.

Assignees

• Memjet Technology Ltd
• Memjet Technology Ltd

Inventors

• Jensen David
• Mackey Paul
• Jayatileke Saminda

Classifications

• B41J3/60

  for printing on both faces of the printing material · CPC title

• B41J11/006

  Means for preventing paper jams or for facilitating their removal · CPC title

• B41J13/009

  Diverting sheets at a section where at least two sheet conveying paths converge, e.g. by a movable switching guide that blocks access to one conveying path and guides the sheet to another path, e.g. when a sheet conveying direction is reversed after printing on the front of the sheet has been finished and the sheet is guided to a sheet turning path for printing on the back · CPC title

• B41J11/0045 Primary

  Guides for printing material (curl smoothing B41J11/0005; platens B41J11/02, B41J11/06; guiding webs B41J15/046) · CPC title