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LASERBAR.DOC
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1986-01-09
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LASERBAR.BAS
CODE 3 OF 9 BAR CODE PRINT UTILITY FOR THE H.P. LASERJET
Where I work, we have developed several uses for bar codes to be used for
quick, accurate input. Our timeclock system uses bar codes for employees
to 'wand in' and 'wand out'. Data is stored on a floppy disk which is then
transferred to the mainframe once a week for storage, editing, and printing.
Our production orders also contain the bar code for the part numbers needed
or used. These numbers provide input for our inventory control system.
The problem we encountered was that bar codes printed on a dot-matrix
printer were not precise enough for a 100% good scan everytime. Some bar codes
would be accepted after several passes, and some not at all. Then we purchased
the H.P. Laserjet, mainly for high quality word processing. I stumbled onto a
bar code program written by Bill Wood, Mil. WI (CODE39.BAS) which inspired me
to write this version for the H.P. Laserjet. The bar codes that this printer
produces work great !
The program does not store data on disk , but could be easily modified to do
so. I've tried to add in sufficient REMarks to allow others to follow the code.
I now use this program as a subroutine to our main production order program.
Also, there is a 13 character limit which is sufficient for our present use,but
I know the program can be redesigned to handle more.
This program was written as a demonstration of the H.P. Laserjet's ability to
produce code 3 of 9 bar codes and the author is not responsible for any damages
incurred though the use of this program.
H.P. Laserjet is a product of the Hewlett-Packard Company
Bill Baines, Enfield, CT.