Cleaning elements for print apparatus

Patent metadata

Field	Value
Publication number	US-11433663-B2
Application number	US-201716605095-A
Country	US
Kind code	B2
Filing date	Sep 14, 2017
Priority date	Sep 14, 2017
Publication date	Sep 6, 2022
Grant date	Sep 6, 2022

Abstract

In an example, a method includes rotating a print apparatus component to be cleaned about a first rotational axis. A cleaning element having a cleaning surface in contact with the print apparatus component may be driven such that the cleaning surface has a component of motion which is parallel to the first rotational axis in a contact region. A relative velocity of the cleaning element and the print apparatus component may be varied during a cleaning operation.

First claim

The invention claimed is:

1. Print apparatus component cleaning apparatus comprising:
a cleaning element having a cleaning surface;
a motor to drive the cleaning surface;
a mounting element to mount the cleaning element such that the cleaning surface is drivable with a component of motion which is orthogonal to the motion of a surface of a print apparatus component to be cleaned, wherein the cleaning surface comprises a cleaning cylinder mounted on a cylinder axle; and
a controller to vary a relative velocity of the cleaning surface and the surface of the print apparatus component.

2. Print apparatus component cleaning apparatus according to claim 1 wherein the controller is to control at least one of a speed and a direction of the motor.

3. Print apparatus component cleaning apparatus according to claim 2 in which the cleaning element comprises a sponge cylinder and the controller is to control a velocity of revolution of the sponge cylinder.

4. Print apparatus component cleaning apparatus according to claim 1 in which the mounting element comprises a mounting rail and a drive mechanism to drive the cleaning element along a length of the print apparatus component to be cleaned.

5. Print apparatus component cleaning apparatus according to claim 1 further comprising a biasing element to control a pressure between the cleaning element and the print apparatus component to be cleaned.

6. Print apparatus component cleaning apparatus according to claim 1 in which the cleaning element comprises a rotating surface.

7. Print apparatus comprising:
a drum mounted on a drum axle;
a cleaning element having a cleaning surface in contact with a surface of the drum;
a motor to drive the cleaning surface to have a component of motion parallel to the drum axle;
a cleaning element translation mechanism to move the cleaning element along a length of the drum, wherein the cleaning element comprises a cleaning cylinder mounted on a cylinder axel, wherein the drum axle and the cylinder axle are nonparallel; and
a controller to control a speed of the motor.

8. Print apparatus according to claim 7 in which the controller is to vary at least one of a rotational velocity and a translational velocity of the cleaning element.

Assignees

• Hp Indigo Bv

Inventors

• Cohen Lavi
• Macias Guzman Minedys
• Vinokur Michael

Classifications

• B41F35/04

  for inking rollers · CPC title

• B41P2235/20

  Wiping devices · CPC title

• B41F35/006

  for impression cylinders · CPC title

• B41F35/02 Primary

  for forme cylinders · CPC title

• B41L41/00

  Cleaning arrangements or devices {(for printing presses in general B41F35/00)} · CPC title