Patent · US Expired

Device for monitoring the operation of a fixing station of an electrographic printing device

US5978613A · kind A · utility

2Cited by

1References

9Claims

0Family size

Assignee

Oce Printing Systems GmbH · DE

Inventors

Norbert Mendisch · Hersbruck, DE
Franz Hintler · Aschau, DE
Gerhard Lodermann · Hersbruck, DE

Key dates

Filing date	Sep 24, 1998
Grant date	Nov 2, 1999
Priority date	—
Expiry date	Sep 24, 2018

Classification

Technology area (CPC G)Physics
CPC primaryG03G2215/00746
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An apparatus is provided in a printer to prevent wrapping of the paper web onto the printer's fixing roller which fixes the toner particles onto the paper web. The apparatus includes a sensor to monitor the speed and moving direction of the web at the output of the fixing station. The sensor is connected to a controller which operates to halt the operation of the fixing station or the printer when the sensor senses a reversal of the moving direction of the web. The controller may average the web moving speed and compare the average speed to a predetermined speed for halting printer operation if the average speed traverses the predetermined speed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.