Image head

Details Image head Image head

1991-11-25

1994-12-06

Fuller, Benjamin R.

Recorders

Light or beam recording

Including record receiver or handling means therefor

346154, 3461601, 377 72, 377 75, B41J 245, G11C 1900

Patent

active

053715250

ABSTRACT:
An image head in which storage time is shortened to ease block selection. The image head is provided with means for preventing the influence of storage time. For instance, minority carriers in the switching transistors for driving image blocks are extracted by amplification circuits. Another method is to drive the switching transistors in the non-saturation region to prevent accumulation of minority carriers. The image head is provided with block selection circuit comprising a shift register and a clock counter. The datum is set in the head data set bit of the shift register at the time of resetting. Whenever the clock counter counts clock signals for one image block, the counter will shift the datum by one bit. This datum drives the image blocks.

REFERENCES:
patent: 3021387 (1962-02-01), Rajchman
patent: 3248564 (1966-04-01), Rees
patent: 3517258 (1970-06-01), Lynch
patent: 3665496 (1972-05-01), Donjon
patent: 3740570 (1973-06-01), Kaelin et al.
patent: 3940681 (1976-02-01), Ohsawa
patent: 4694310 (1987-09-01), Saito et al.
patent: 4713561 (1981-12-01), Yamada
patent: 4807047 (1989-02-01), Sato et al.
patent: 4851926 (1989-07-01), Ishikawa
patent: 4935756 (1990-06-01), Hotomi et al.

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