Recording head system for ink jet recording apparatus and method

Details Recording head system for ink jet recording apparatus and method Recording head system for ink jet recording apparatus and method

1992-12-31

2000-08-15

Le, N.

Incremental printing of symbolic information

Ink jet

Controller

347 12, 347 13, 347 57, 347180, B41J 2938

Patent

active

061025100

ABSTRACT:
A recording head system for an ink jet recording apparatus having a full-line recording head. The recording head is divided into a variable number of blocks. The recording ratio of each block (that is, the ratio of the number of ink ejecting elements to be driven in a block in accordance with recording data to the total number of the ink ejecting elements in the block) is compared with a reference recording ratio. When the recording ratio is greater than the reference recording ratio, the interval between the drive timing of a block and that of the next block is lengthened, or vise versa. This is performed by controlling the enable timing of each block by D-flip-flops, AND gates and delay circuits. Unevenness of recorded images resulting from the fluctuation in periodic ink pressure can be ameliorated.

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