Browse Prior Art Database

Arrangement for Data Merging and Line Splitting in Printers

IP.com Disclosure Number: IPCOM000080057D
Original Publication Date: 1973-Oct-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 2 page(s) / 61K

Publishing Venue

IBM

Related People

Tsui, F: AUTHOR

Abstract

The write head consists of electrodes arranged in two colurns and staggered in relation to each other (Fig. 1). During a first clock, the information of the one-shift register elements A, associated with the electrodes of column 1, is transmitted to the electrodes. The information of the two-shift register elements, associated with the electrodes of column 2, are shifted from the left-shift register element B to the right-shift register element B'.

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Arrangement for Data Merging and Line Splitting in Printers

The write head consists of electrodes arranged in two colurns and staggered in relation to each other (Fig. 1). During a first clock, the information of the one- shift register elements A, associated with the electrodes of column 1, is transmitted to the electrodes. The information of the two-shift register elements, associated with the electrodes of column 2, are shifted from the left-shift register element B to the right-shift register element B'.

After the write head has been moved (from left to right) by one column spacing, the second clock is applied, causing the information of the right two-shift register element B' to be transmitted to the electrodes of column 2. In between clocks the shift register is loaded in the left position (A or B).

If during the return movement of the write head (from right to left) printing is to be effected, the column sequence 1 - 2 of the write head is changed in the feed lines of the electrodes by switches, simultaneously performing a shift step from top to bottom in the left position of register I.

Graphic and alphanumeric data are merged via OR circuits. The graphic data are stored in the form in which they are to be reproduced, that means uncoded; the alphanumeric data being coded, is decoded in a character generator.

Provided its width is adequate, the write head can also be employed for writing two lines at a time. To this end, the information for the first and s...