Browse Prior Art Database

Baking Soda Blast Cleaning Process for Ceramic Rolls

IP.com Disclosure Number: IPCOM000130699D
Publication Date: 2005-Nov-01
Document File: 1 page(s) / 27K

Publishing Venue

The IP.com Prior Art Database

Abstract

Ceramic donor rolls have been known to lose their electrical properties over time as toner and additives become trapped in the roll surface. As toner continues to build-up it acts as an insulator, which alters the electrical characteristics of the roll resulting in poor image quality. This disclosure describes a process for removing the ceramic coating from a donor roll and applying a new ceramic coating to the core surface.

This text was extracted from a Microsoft Word document.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 96% of the total text.

Baking Soda Blast Cleaning Process for Ceramic Rolls

Ceramic donor rolls have been known to lose their electrical properties over time as toner and additives become trapped in the roll surface.  As toner continues to build-up it acts as an insulator, which alters the electrical characteristics of the roll resulting in poor image quality.  The ceramic coating of the donor roll is removed using the process described below and a new ceramic coating is applied to the core surface. 

The process involves the impingement of baking soda crystals onto the surface of a rotating roll to break down filmed material.  The following variables should be controlled to produce an optimal result:

- Roll rotation rate

- Distance from nozzle to donor roll

- Traverse rate

- Blast pressure rate

- Impingement angle

- Media particle size

- Nozzle inside diameter

The rolls are cleaned while maintaining surface finish and electrical integrity by blasting each roll with baking soda.  The nature of baking soda’s crystal composition creates a cutting effectiveness on the deposited toner and additives without aggressively impacting the ceramic finish.  This approach works well in removing the filmed material trapped in the valleys and surface of the ceramic coating.  The cleaning process involves placing a roll on a fixture which would rotate it at a pre-determined speed.  An apparatus with a nozzle would traverse at a pre-determined rate along the length of the rotating roll blasting it with th...