Toner monitoring in an electrostatographic digital printing mach

Details Toner monitoring in an electrostatographic digital printing mach Toner monitoring in an electrostatographic digital printing mach

1992-08-27

1993-04-20

Moses, R. L.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

355208, 355246, 222DIG1, G03G 1506, G03G 1508

Patent

active

052046982

ABSTRACT:
In a laser printer, in which a latent image is generated on a circulating imaging member in accordance with digital image signals and subsequently developed with toner, the number of pixels to be toned is used as an indication of the rate at which toner is being depleted from the developer mixture. The device for dispensing fresh toner to the developer mixture is operated in dependence on the number of pixels to be toned so that there is a pre-established relationship between the pixel count and the length of time for which the dispensing device is in operation. If the efficiency of the dispensing device falls, the pre-established relationship is adjusted so that the toner density in the developed images remains constant. If a predetermined level of adjustment is reached, it is taken as an indication that the supply of toner in the printer is low, and should be replenished.

REFERENCES:
patent: 3409901 (1968-11-01), Dost et al.
patent: 3873002 (1975-03-01), Davidson et al.
patent: 4468112 (1984-08-01), Suzuki et al.
patent: 4847659 (1989-07-01), Resch, III
patent: 4908666 (1990-03-01), Resch, III
patent: 4974024 (1990-11-01), Bares et al.
patent: 5124751 (1992-06-01), Fukui et al.
Patent Abstracts of Japan, vol. 13, No. 327, Pub. Jul. 24, 1989, for Japanese Patent Document 01-108070, Publication date of Japanese Document Apr. 25, 1989.

Affiliated with

Also associated with

Rating

Toner monitoring in an electrostatographic digital printing mach 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 monitoring in an electrostatographic digital printing mach, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toner monitoring in an electrostatographic digital printing mach will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1528907