Автоматическая идентификация. Кодирование штриховое. Линейные символы штрихового кода. Требования к испытаниям качества печати

1 2 3 4 5 1 2 3 4 5 5.1 5.2 5.3 5.4 6 6.1 6.2 7

Automatic identification. Bar coding. Bar code linear symbols.
Print quality test specifications
1 - - - 2 11 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 3.20 11 3.21 3.22 3.23 3.24 3.25 1 2 4 4.1 EC min — ERN — (Element reflectance non-uniformity) ERN max — GT — (Global threshold) MOD — (Modulation) PCS — (Print contrast signal) RT — (Reference threshold) SC — (Symbol contrast) SRD — (Static reflectance difference) 4.2 N — R b — R d — R l — R max — R m i n — R s — RT j — S — V— V c — Z— 5 5.1 5.2 5.2.1 5.2.2 2| 5.2.3 а?) Ь?)

5.2.4

5.2.5 5.3 100—1
90-

5.4 100-1

5.4.1 GT = ( R. .„ + ^ 5.4.2 5.4.3 5.4.4 SC ^ 5.4.5 5.4.6 EC = R s - R b .

5.4.7 MOD = EC^/SC.

5.4.8 Defects = ERN m „ x /SC.
5.4.9 а?) Ь?) с?) V= (RT — RT
5.4.10 6 6.1 а?) Ь?) с?) d) е?) f) g) h) 6.1.1 6.1.2 V
6.1.3 7 N = ( Z= ( V2 = (E-RT) /((A x Z)-RT).
RT j = ((/' + 0,5) x S)/ В?.1 В?.2 2, 2, 3, 3, 4, 2, 2, 2, 3, 3,
2,6/05/900.

D.1 R2 — D.2 D.3 D.4 R = 100 / 10D.

D.4.1

SC = R max -^ D.4.2

MOD ’ = EC min ‘ /SC ‘ .
D.4.3 Е?.1 - - - - - Е?.2 - - - - - - - - - - - - - - - - - - - - - - - - Е?.З? Е?.4 F.1 а?) Ь?) с?) d) F.2 VERIFICATION REPORT Date 23.12.96 Time 16:12:36 Aperture: 0,010 in/0,25 mm Wavelength: 660 mm Code type Code 39 Decoded data: $M Overall Symbol
Grade: 3.0 (B) Averaged over (no. of scans): 1 Last scan reflectance profile grade: 3.0 (B) Scan reflectance profile analysis Parameter value grade Decode Yes 4 ^ max 79 % N/A ^ min 2 % 4 Global threshold 40 % N/A Symbol contrast 77 % 4 Min. edge contrast 48 % 4 Modulation 0,63 3* Defects 0,16 3* Decodability 0,75 4 PCS 0,97 N/A Average bar gain +3.0 % N/A * indicates parameter grade (s) determining scan reflectance profile grade
J.1 а?) Ь?) J.2 PCS (R / R d )/ R l ,
R d — PCS = SC/R max ;
SC = PCS x r l .
J.3 а?) Ь?) - - - - - - - G = 100 G — [1] [2] [3]