Philips Pathology Scanner SG20 Instructions For Use Manual page 101

Barcodes
Definition
Grade
Type
Element dimensions
Quiet zone
Pathology Scanner SG20 / SG60 / SG300
Specification
Machine readable barcodes of grade A or B or C (ISO15415,
ISO15416)
2D code type: Data Matrix ECC 200 (ISO/IEC16022:2006 Recom-
mended barcode type for all glass slides.
1D code type:
Code 39 with mod 43 checksum (ISO/IEC 16388:2007)
Code 128 (ISO/IEC 15417:2007)
- Code 128A (ISO/IEC 15417:2007)
- Code 128B (ISO/IEC 15417:2007)
- Code 128C (ISO/IEC 15417:2007)
Data Matrix:
- 10 x 10 - 20 x 20 mil (0.254 x 0.254 - 0.508 x 0.508 mm)
- the barcode element is the smallest black or white squared 'cell'
contained in the barcode
Code 39 and 128 types:
- width: 7.5 - 10 mil (0.19 - 0.25 mm) and height: ≥ 3.5 mm
- the barcode element is the bar or space in the barcode with the
narrowest width
The narrowest element dimensions for barcode types code 39 and
128 results in the following maximum number of ASCII characters
that can be encoded in a supported barcode:
Code 39 (assuming a barcode on a 24 mm wide label):
7.5 mil (0.19 mm): maximum 5 characters (4 + checksum character)
10 mil (0.25 mm): maximum 3 characters (2 + checksum character)
Code 128 (assuming a barcode on a 24 mm wide label):
7.5 mil (0.19 mm): maximum 7 characters (6 + checksum character)
10 mil (0.25 mm): maximum 4 characters (3 + checksum character)
The quiet zone is a blank space around the symbol which must not
contain any graphic element which may disrupt reading the barcode.
• Data Matrix: At least the width of the smallest element (i.e.
black and white 'cell') of the barcode, surrounding each of the
barcode's four sides.
• Code 39/128 type: At least 10 times the width of the narrowest
bar/space element of the barcode, at left and right side of the
barcode.
Technical data
101