Toner maintenance subsystem for a printing machine

Details Toner maintenance subsystem for a printing machine Toner maintenance subsystem for a printing machine

1990-12-04

1992-01-14

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

355246, G03G 1508

Patent

active

050814915

ABSTRACT:
An apparatus for controlling the concentration of toner within a developer material of carrier and toner. The apparatus having a control means for generating a toner addition signal indicative of the amount of toner to be added to the developer material. The control means including the ability to measure the concentration of toner within the developer material during at least a first period and a second period subsequent to the first period. The control means also determining a first concentration error as a function of the deviation between the toner concentration measured during the first period and a reference toner concentration and a second concentration error as a function of the deviation between the toner concentration measured during the second period and the reference toner concentration. Subsequently, the control means generates the toner addition signal as a function of the first and second concentration error values. The apparatus also includes means, responsive to the toner addition signal, for regulating the addition of toner to said developer material.

REFERENCES:
patent: 3873002 (1975-03-01), Davidson et al.
patent: 4318610 (1982-03-01), Grace
patent: 4326646 (1982-04-01), Lavery et al.
patent: 4348099 (1982-09-01), Fantozzi
patent: 4607944 (1986-08-01), Rushing
patent: 4875078 (1989-10-01), Resch, III et al.
patent: 4956669 (1990-09-01), Nakamura

Affiliated with

Also associated with

Rating

Toner maintenance subsystem for a printing machine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Toner maintenance subsystem for a printing machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toner maintenance subsystem for a printing machine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-544454