Copyright 2008 Unitech Electronics Co., Ltd. All rights reserved. Unitech is a registered trademark of Unitech Electronics Co., Ltd.
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Copyright 2008 Unitech Electronics Co., Ltd. All rights reserved. Unitech is a registered trademark of Unitech Electronics Co., Ltd.
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The RLE compressed graphics command:
ESC ‘v’
height width counter data…
DEC
27
118
2
6
255
85
255
HEX
0x1B 0x76 0x02
0x06 0xFF
0x55
0xFF
DEC
0
3
170
17
85
0
253
85
HEX
0x00
0x03 0xAA 0x11 0x55
0x00
0xFD 0x55
3.3 A quick Review of Graphic Logo Commands
Graphic Images can be stored in the form of a logo. This allows the printer to store
them in memory locations and print them as needed. The Unitech MP300 printer
currently supports 8 logos. Single Byte Command is used to select a specific logo
location. In the commands below ‘n’ can be any number from 0 – 7. For more detailed
description of the Graphic Logo Commands please refer to the Flash Logo Commands
section in this document.
Command
Command Description
Printer Response
Esc – ‘D’-‘L’-n
Select Flash Logo Mode
?
Esc – ‘L’-‘G’-n
Load/Record Graphic Logo
none
Esc- ‘L’-‘G’-<OxFF>
Stop Loading Graphic Logo
D!X
Esc-‘L’-‘g’-n
Print Graphic Logo
Printer Prints Logo n
Table 3.3 – Graphic Logo Commands
Chapter 4.0
Bar Codes
4.0 Bar Codes
The Unitech MP300 printer supports several bar code symbologies. Two commands
are defined for printing bar codes.
Bar Code Command
Formats
Printer Action
Command String Components
Esc- ‘z’-n1-n2-L-[data]
Prints Bar code only
n1 bar code type
‘1’ Code 39
‘2’ Code 128,UCC/EAN-
128
‘3’ Interleaved 2 of 5
‘4’ UPC/EAN/JAN
‘5’ Codabar
n2 number of character bytes in
data array 1-255
L Height of bar code printed in
increments of 0.125mm
Esc- ‘Z’-n1-n2-L-[data]
Prints Bar code and
ASCII visible
Table 4.0 – Bar Code Command Formats
All barcodes are printed with the minimum bar width (“x-dimension”) of 0.250mm, in
compliance with the respective official specification.
4.1 Code 39 specifications
Description: Each symbol starts with Leading Quiet Zone, followed with
Start Symbol, Data Symbols, ending with Stop Symbol and
Trailing Quiet Zone.
Character set: 36 alphanumeric (0-9, A-Z) and ‘-’ ‘space’ ‘$’ ‘/’ ‘+’ ‘%’
Note: Only capital letters are supported.
Elements per symbol:
9 (5 bars, 4 spaces)
Character density:
6.25 CPI
Bar width:
0.25mm (narrow to wide ratio of 1:3).
Characters per line:
12 with auto center (maximum).
