Code 128 & EAN 8
outline
- It encode all 128 character of ASCII
- Widely used in shipping and packaging
Title Text
1 Quite zone
2 Start zone
3. Encoded data
4. Check character
5. Stop character
6. Quite zone
7. HRI (Human readable interpretation
Dimension
- Every ASCII code has vary length in mm
- Maximum length is 165 mm which is about 6 inch
- Maximum character should not exceed than 48
- Minimum Height 32 mm
- It is recommended to have as much height as possible
- Minimum bar width of .254 mm
Subset
- A: ASCII character from 00 to 95(0-9,A-Z,control code)
- B: ASCII character from 32 to 127(0-9,A-Z,a-z)
- C: ASCII character from 00 to 99
EAN 8
- 2-3 digit country code
- 4-5 data code
- Primary objective of code is use minimum space
- It has 8 digit 4 on left and 4 on right
Laser printer
for bar code
Advantage
1. Good for print on plane page.
2. It has high density and resolution for barcode.
Limitation
1. More wastage of paper,difficult for single or small barcode
2. Adhesive carefully selected
3. A laser-printed paper label has limited durability
4. Laser printers cannot produce chemical- or water resistant labels and images
Thermal print
for barcode
Advantage
1.Direct thermal printing produces sharp print quality with good readability
2.Thermal printers enable batch or single-label printing with virtually no waste.
3.Thermal transfer printers, are typically built more durably than dot matrix
or laser printers
Limitation
1.Direct thermal printing is sensitive to environmental conditions such as heat and light