Printing apparatus and control method therefor

Details Printing apparatus and control method therefor Printing apparatus and control method therefor

1997-03-26

2000-07-11

Hilten, John S.

Typewriting machines

Including control of format and selection of type-face by...

400 62, 40012005, B41J 530

Patent

active

060862726

ABSTRACT:
A printer, in which nozzles for printing dots are positioned in a zigzag formation, has a simple circuit for sending to these nozzles printing data that has been expanded into a bit-map image. When sending data to a print head in which odd-numbered nozzles and even-numbered nozzles are alternately positioned, the bit data of string n+l and the bit data of string n that correspond to respective nozzles inside image buffer 20 are converted from parallel to serial before being sent. Odd-numbered bit data and even-numbered bit data are then selected from the bit data using divided clock signals, and are converted from serial to parallel for printing.

REFERENCES:
patent: 5102244 (1992-04-01), Takeda
patent: 5278582 (1994-01-01), Hongo
patent: 5349375 (1994-09-01), Bolash et al.
patent: 5552813 (1996-09-01), Takada et al.
patent: 5625394 (1997-04-01), Fukuda et al.
patent: 5692108 (1997-11-01), Donahue
patent: 5779377 (1998-07-01), Kumai et al.

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