Pagewidth ink jet printer including a printbar mounted encoding

Details Pagewidth ink jet printer including a printbar mounted encoding Pagewidth ink jet printer including a printbar mounted encoding

1998-01-08

2000-12-05

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347139, B41J 2155

Patent

active

061556696

ABSTRACT:
A liquid ink printer, depositing liquid ink to form an image, on a recording medium, including a printing dimension defining a maximum print area to receive the liquid ink, moving along a recording medium path. The printer includes a printbar, including a plurality of nozzles, aligned substantially perpendicular to the recording medium path, to deposit a swath of ink on the recording medium during movement of the recording medium along the recording medium path, a recording medium transport, disposed adjacent the plurality of nozzles, to move the recording medium along the recording medium path, and an encoder system, spaced from the recording medium transport, to determine the position of the recording medium transport with respect to the array of nozzles. The printbar includes a mounting substrate to mount a plurality of printhead dies including the nozzles and an optical reader of the encoder system. The nozzles and optical reader are aligned and the encoder system accurately determines the position of a belt of the recording medium transport with respect to the nozzles.

REFERENCES:
patent: 4912491 (1990-03-01), Hoshino et al.
patent: 5040003 (1991-08-01), Willis
patent: 5220346 (1993-06-01), Carreira et al.
patent: 5394223 (1995-02-01), Hart et al.

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