Ink jet record apparatus

Details Ink jet record apparatus Ink jet record apparatus

1990-12-10

1992-09-08

Fuller, Benjamin R.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

346140R, B41J 207, B41J 2045

Patent

active

051462362

ABSTRACT:
An ink jet record apparatus for driving a drop-on-demand ink jet head with a piezoelectric element in a printing apparatus. The ink jet record apparatus includes a first drive part for driving and operating the ink jet head in a first operation mode, a second drive part for driving and operating the ink jet head in a second operation mode, a selection part for changing an operation of the ink jet head from the first operation mode to the second operation mode or vice versa, and a control part for supplying a drive signal to the selection part in accordance with input image information, thus allowing a size of ink dots on paper to be adjusted through selection of either the first operation mode or the second operation mode.

REFERENCES:
patent: 4499479 (1985-02-01), Chee-Shuen Lee et al.
patent: 4513299 (1985-04-01), Lee et al.
patent: 4866462 (1989-09-01), Watanabe

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