Toner concentration measuring method, toner concentration measur

Electrophotography – Control of electrophotography process – Control of developing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

399 61, G03G 1510

Patent

active

061546208

ABSTRACT:
A toner concentration measuring method and apparatus by which the concentration of toner in solvent can be detected accurately with a simple construction without being influenced by a variation of the conductivity caused by a variation of the amount of ions in the solvent. A stepped dc voltage is applied from a high dc voltage generation section between a pair of electrodes placed in solvent, and very weak current which flows in a circuit formed from the pair of electrodes is measured by a current measuring section. The solvent between the pair of electrodes is replaced into an equivalent circuit, and a capacitance of the equivalent circuit is calculated in accordance with a circuit equation to determine the amount of ions in the solvent. Further, in accordance with a function expression wherein the ion amount and a resistance of the equivalent circuit are used as parameters, a toner concentration from which an influence of a variation of the amount of ions in the solvent is eliminated is determined.

REFERENCES:
patent: 4257347 (1981-03-01), Stahl
patent: 5848322 (1998-12-01), Chen et al.
patent: 5995778 (1999-11-01), Yamaguchi

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Toner concentration measuring method, toner concentration measur 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 concentration measuring method, toner concentration measur, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toner concentration measuring method, toner concentration measur will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1734261

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.