Browse Prior Art Database

Print Band with Vertically Staggered Dot Elements

IP.com Disclosure Number: IPCOM000103493D
Original Publication Date: 1990-Dec-01
Included in the Prior Art Database: 2005-Mar-18
Document File: 1 page(s) / 47K

Publishing Venue

IBM

Related People

Bast, CA: AUTHOR

Abstract

Disclosed is a print band for a computer printer that has vertically staggered dot elements. The band allows printing of a complete line of characters before the paper must move.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Print Band with Vertically Staggered Dot Elements

      Disclosed is a print band for a computer printer that has
vertically staggered dot elements.  The band allows printing of a
complete line of characters before the paper must move.

      The print band (see Figure) is a continuous loop with dot
elements (1) attached to it.  The printer's hammers strike the dot
elements which press a ribbon to the paper, thereby making dots on
the paper.  The dot elements are staggered vertically in a wave form
that repeats the entire length of the print band.  The band is driven
horizontally which allows horizontal rows of dots to be printed.  The
number of rows is determined by the number of elements per
wavelength.  After the band has traveled horizontally one wave
length, all dots in a line of characters will have been printed.  The
paper moves vertically to allow the next line of characters to be
printed.  Timing slots (2) on the bottom of the band provide timing
pulses for hammer firing via an optical sensor.  A wider slot (3) is
used to indicate the beginning of a wave.

      Disclosed anonymously.