DD CEN/TS 14826:2004
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Hardcopy , PDF
08-23-2022
English
11-23-2004
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Requirements
6 Basic measurement methodology
7 Verification requirements for Digital Postage Marks
7.1 Verification equipment
7.2 Optical geometry
7.3 Light source
7.4 Measuring aperture
7.4.1 Measuring aperture for two-dimensional
multi-row symbologies
7.4.2 Measuring aperture for two-dimensional matrix
symbologies
7.5 Mail format
8 Grading implications for individual symbol attributes
9 Additional grading parameters - Quiet zone
10 Qualification of printing systems for Digital Postage
Marks
Annex A (normative) Test procedure for printing systems
for Digital Postage Marks
A.1 Environmental conditions for test
A.2 Test materials
A.3 Test procedure
Annex B (informative) Light sources and spectral response
characteristics for verification of Digital Postage
Marks
B.1 Narrow-band illumination
B.2 Broad-band illumination (white light)
B.2.1 General
B.2.2 Halogen lamps
B.2.3 Light emitting diode
B.2.4 Gas discharge lamp
B.2.5 Fluorescent lamps
Annex C (informative) Symbol parameters measured in
accordance with ISO/IEC 15415
C.1 Parameters for two-dimensional multi-row symbols
C.2 Parameters for two-dimensional matrix symbologies
Annex D (informative) Characteristics of Digital Postage
Mark printing and reading environments that affect
print quality
D.1 Printing of Digital Postage Marks
D.1.1 Ink-jet printing
D.1.2 Laser printing
D.1.3 Thermal transfer printing
D.1.4 Direct thermal printing
D.1.5 Matching X dimension to printer resolution
D.2 Reading environment
Annex E (informative) Possible causes of low parameter
grades in the Digital Postage Mark environment
E.1 Multi-row symbologies
E.1.1 Symbol Contrast
E.1.2 Minimum reflectance
E.1.3 Minimum edge contrast
E.1.4 Modulation
E.1.5 Decode
E.1.6 Defects
E.1.7 Decodability
E.1.8 Codeword yield
E.1.9 Unused error correction (UEC)
E.1.10 Quiet zone
E.1.11 Print growth
E.1.12 Codeword quality
E.2 Matrix symbologies
E.2.1 Symbol Contrast
E.2.2 Fixed pattern damage
E.2.3 Modulation
E.2.4 Axial non-uniformity
E.2.5 Grid non-uniformity
E.2.6 Unused error correction
E.2.7 Quiet zone
E.2.8 Print growth
Bibliography
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