Belt roller platens

Patent metadata

Field	Value
Publication number	US-2021237479-A1
Application number	US-201817049130-A
Country	US
Kind code	A1
Filing date	Jun 21, 2018
Priority date	Jun 21, 2018
Publication date	Aug 5, 2021
Grant date	—

Abstract

In one example, a heated pressure roller can include a structural element positioned within a belt roller, a platen coupled to the structural element, wherein the platen comprises: a first side to guide a belt of the belt roller to form a first angle on the first side, and a second side to guide the belt of the belt roller to form a second angle on the second side that is different than the first angle.

First claim

What is claimed:

1 . A heated pressure roller, comprising:
a structural element positioned within a belt roller; a platen coupled to the structural element, wherein the platen comprises:
a first side to guide a belt of the belt roller to form a first angle on the first side; and
a second side to guide the belt of the belt roller to form a second angle on the second side that is different than the first angle.

2 . The heated pressure roller of claim 1 , wherein the first side extends from a center of the platen in a first direction and the second side extends from the center of the platen in a second direction that is opposite the first direction.

3 . The heated pressure roller of claim 2 , wherein the first side extends a first distance from the center of the platen and the second side extends a second distance from the center of the platen.

4 . The heated pressure roller of claim 3 , wherein the second distance is greater than the first distance.

5 . The heated pressure roller of claim 1 , wherein the belt roller has an asymmetric profile provided by the platen.

6 . A system for a heated pressure roller, comprising:
a heat source positioned within a belt roller of the heated pressure roller; a structural element positioned within the belt roller of the heated pressure roller; and a platen to guide a belt of the belt roller asymmetrically between an input and an output of a nip between the belt roller and a cylindrical roller of the heated pressure roller such that a first angle is generated by the platen at the input and a second angle is generated by the platen at the output.

7 . The system of claim 6 , wherein a first edge of the platen positioned at the input is a first distance and a second edge of the platen positioned at the output is a second distance that is greater than the first distance.

8 . The system of claim 6 , wherein the belt roller is to receive partially dried media at a first angle at the input and further to eject the partially dried media at a second angle at the output.

9 . The system of claim 8 , wherein the platen includes a first side at the input and a second side at the output such that the first side is a smaller distance than the second side.

10 . The system of claim 6 , wherein the structural element is positioned between the heat source and the platen.

11 . The system of claim 10 , wherein a first portion of a belt path of the belt roller includes the platen and a second portion of the belt path of the belt roller includes the heat source and wherein second portion of the belt path of the belt roller is symmetrical.

12 . A printing device, comprising:
a heated pressure roller to receive partially dried media at an input of a nip of the heated pressure roller and provide the partially dried media to media pathway at an output of the nip of the heated pressure roller, the heated pressure roller comprising:
a belt roller that includes a belt that rotates around a heat source, a structural element, and a platen coupled to the structural element to guide the belt, wherein the platen includes a lip portion that extends toward the media pathway; and
a cylindrical roller to apply pressure on the platen, wherein the nip is a location where the cylindrical roller makes contact with a surface of the platen.

13 . The printing device of claim 12 , wherein the lip portion extends beyond symmetrical perimeter of the belt roller.

14 . The printing device of claim 12 , wherein the lip portion provides an asymmetrical belt path for the belt of the belt roller.

15 . The printing device of claim 12 , wherein the lip portion is to increase a peel angle for the partially dried media at the output of the heated pressure roller.

Assignees

• Hewlett Packard Development Co

Inventors

• Raisanen Matthew
• Brinkly Richard Lee
• Lo Kevin

Classifications

• B41J11/0024 Primary

  using conduction means, e.g. by using a heated platen · CPC title

• B41J11/13

  Backings or blankets (for roller platens B41J11/057) · CPC title

• B41J11/02

  Platens · CPC title

• B41J11/002

  Curing or drying the ink on the copy materials, e.g. by heating or irradiating · CPC title

• B41J11/06

  Flat page-size platens {or smaller flat platens having a greater size than line-size platens (B41J11/0085 takes precedence)} · CPC title