System with ambient sensor for estimating printing supply consum

Details System with ambient sensor for estimating printing supply consum System with ambient sensor for estimating printing supply consum

1996-05-22

1997-08-05

Moses, R. L.

Electrophotography

Diagnostics

Consumable

347 19, 399 44, 399260, G03G 1506

Patent

active

056551746

ABSTRACT:
A system of the present invention includes an ambient condition sensor for estimating the consumption of toner, developer, or similar printing supply in an electrostatic or ink jet printer. In a preferred embodiment, the ambient condition being monitored is relative humidity, though in other embodiments other indicators of ambient air conductivity or break down voltage are measured. Consumption is estimated by classifying each pixel to be printed according to the number of neighbors of that pixel, accumulating a sum according to each classification, multiplying each accumulated sum by a weight that accounts for its classification, and calculating an overall sum of the weighted products. The overall sum is then scaled by a factor that accounts for the conductivity of ambient air as measured by the sensor to provide an incremental estimate of consumption. The scaling factor is determined by empirical studies. A warning such as "low toner" is displayed on the printing device and on a remote console when the integrated incremental estimates of consumption surpass a limit.

REFERENCES:
patent: 4847641 (1989-07-01), Tung
patent: 5252995 (1993-10-01), Trask et al.
patent: 5305199 (1994-04-01), LoBiondo et al.
patent: 5327196 (1994-07-01), Kato et al.
patent: 5349377 (1994-09-01), Gilliland et al.
patent: 5436705 (1995-07-01), Raj
patent: 5491540 (1996-02-01), Hirst

Affiliated with

Also associated with

Rating

System with ambient sensor for estimating printing supply consum does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System with ambient sensor for estimating printing supply consum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System with ambient sensor for estimating printing supply consum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1082515