Image forming apparatus and method

Details Image forming apparatus and method Image forming apparatus and method

1994-10-03

1995-12-26

Royer, William J.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 206

Patent

active

054791952

ABSTRACT:
An image forming apparatus uses toner whose degree of dispersion is set in a range of 1.0 to 1.15 (the degree of dispersion is defined as a value that is obtained by dividing an average particle diameter obtained from a particle-diameter distribution on the basis of the volume of the toner by an average particle diameter obtained from a particle-diameter distribution on the basis of the number of particles of the toner). The apparatus includes a toner carry roller for carrying the toner thereon and a toner-layer restricting blade that is disposed in contact with the toner carry roller and serves to restrict the carried toner to be a single layer. Sufficient density contrast can be obtained with a low driving voltage.

REFERENCES:
patent: 3689935 (1972-09-01), Pressman et al.
patent: 4743926 (1988-05-01), Schmidlin et al.
patent: 4755837 (1988-07-01), Schmidlin et al.
patent: 4780733 (1988-10-01), Schmidlin
patent: 4814796 (1989-03-01), Schmidlin
patent: 4912489 (1990-03-01), Schmidlin
patent: 5036341 (1991-07-01), Larsson
patent: 5170185 (1992-12-01), Takemura et al.

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