Recorders – Record receiver deforming
Patent
1981-04-03
1983-01-25
Griffin, Donald A.
Recorders
Record receiver deforming
346 11, G01D 1800
Patent
active
043706649
ABSTRACT:
An ink jet printing apparatus causes deflected droplets of ink to move accurately to a predetermined position by detecting the deflection position of the ink droplets a multiplicity of times and varying the amount of deflection on the basis of the detected deflection position. The charging voltage level or the deflecting voltage level which is varied at each adjustment of the deflection amount has a variable amount of variation. As the adjustment of the deflection is repeated many times, the amount of variation of the charge voltage level or that of the deflection voltage level is decreased progressively at a predetermined rate. Ink droplets are charged from the first step over to the last not in a continuous manner according to the order of the steps but by each predetermined group of steps which skip the others. Furthermore, the charging is so carried out as to compensate for a deflection of a charge voltage on an ink droplet attributable to the charge voltages on ink droplets which have been charged and moved in advance of said ink droplet.
REFERENCES:
patent: 3465350 (1969-09-01), Keur et al.
patent: 3787882 (1974-01-01), Fillmore et al.
patent: 3828354 (1974-08-01), Hilton
patent: 3946399 (1976-03-01), Zaretsky
patent: 3999188 (1976-12-01), Yamada
Ebi Yutaka
Horike Masanori
Yoshiba Yutaka
Alexander David G.
Griffin Donald A.
Ricoh & Company, Ltd.
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