GENICOM TechNote 39U-001
3900 Series - Printing Bar Codes
07-02-96  Ed Palmer

NOTE:  This document applies only to GENICOM 3900 series printers 
connected to an IBM mainframe via coax or twinax.  It does not apply to 
connections through the printer's parallel port.

BAR CODE PARAMETERS:
The ANSI control sequence that sets bar code parameters has the format:

   &%1B &%5B p1 ; p2 ; p3 ; p4 ; p5 ; p6 ; p7 ; p8 ; p9 ; p10 ; p11  &%7D

	p	Attribute			Default
	p1	style
	p2	height			        9
	p3	human readable line	        1
	p4	narrow bar width		2
	p5	wide bar width		        4
	p6	narrow space width	        2
	p7	wide space width		4
	p8	intercharacter gap		2
	p9	rotation			0
	p10	horizontal print density	0
	p11	check character		        0

Paramters are defined as follows:

	p1	Bar Code Style
	0	Interleaved 2 of 5
	1	Bidirectional 2 of 5
	2	Matrix 2 of 5
	3	Industrial 2 of 5
	4	Code 3 of 9
	5	EAN-8
	6	EAN-13
	7	Code 11
	8	Code BCD
	9	Codeabar a/t
	10	Codeabar b/n
	11	Codeabar c/*
	12	Codeabar d/e
	13	UPC-A
	14	UPC-E
	15	Code 93
	16	Code 128 (subsets A, B, and C)
	17	reserved
	18	reserved
	19	MSI
	20	UPC 2
	21	UPC 5
	22	EAN 2
	23	EAN 5

	p2	 Height
	Height of the bar code in 1/12 inch increments.

	p3	Human Readable Line
	0	HRL disabled
	1	HRL enabled

	p4	Narrow Bar Width
	Width of the narrow bars in 1/120 inch increments (horizontal) 
	or 1/144 inches (vertical).

	p5	Wide Bar Width
	Width of the wide bars in 1/120 inch increments (horizontal) or
	 1/144 inches (vertical).

	p6	Narrow Space Width
	Width of the narrow spaces in 1/120 inch increments (horizontal) 
	or 1/144 inches (vertical).

	p7	Wide Space Width
	Width of the wide spaces in 1/120 inch increments (horizontal) 
	or 1/144 inches (vertical).

	p8	Intercharacter Gap
	Space between characters in 1/120 inch increments (horizontal) 
	or 1/144 inches (vertical).

	p9	Rotation	
	0	none
	1	none
	2	90 degrees
	3	180 degrees
	4	270 degrees

	p10	Horizontal Resolution
	0	60 dots per inch
	1	120 dots per inch

	p11	Check Character
	0	disabled
	1	enabled

The bar code parameters should be sent one time at the beginning of the job.

TURNING BAR CODES ON AND OFF:

Use this sequence to turn the bar code on:

	&%1B &%5B 3 &%74

To turn the bar code off:

	&%1B &%5B 0 &%74

PRINTER OPTIONS:
These options are set on the printer:

Software Options
2	Backup to top of bar code
	ENB	backup to top right of bar code after printing (recommended)
	DIS	end at line after bar code
3	Staggered density bar codes
	ENB	enables staggered printing of 60 DPI bar codes (recommended)
	DIS	disables staggered bar codes
4	Guard bars on bar codes
	ENB	enables guard bars on EAN-8, EAN-13, UPC-A, and UPC-E 
	printed with p9=0;  also extends start, stop and center bars
	DIS	disables guard bars
5	Enable SI/SO control of bar codes
	ENB	Enabled
	DIS	Disable (recommended)