Barcode Problems - Tesco Ilchester Applewood Smoked Cheddar

This GS1-128 barcode has been printed bellow the minimum size specified for this type of code. The barcode has also been printed on a direct thermal printer, which is capable of very high quality, but in this case the bars are not dark enough compared to the background. This is probably because the printer has not been set up correctly.

REA Scancheck 3
Barcode verification reports
created with REA Scancheck 3
Problem Page
TransWin32, Version 1.0.9.10

Isis Integration Ltd 6 Cantelupe Mews, Cantelupe Road East Grinstead, RH19 3BG
Barcode Problem - GS1-128
Operator: SC3 User
         
Aperture: 10 mil, 0.25 mm
Wavelength: Laser 670 nm
Unit: Micrometer [µm]
Date: 7/21/2008 3:11:49PM
Device: REA ScanCheck 3 (V1.0.9.11)
Serial Number: 0030.207.105-03096-8
Symbology: GS1-128
Code Content: (01)05014442000387(17)061027
         
User comment:
Tesco Ilchester Applewood Smoked Cheddar  
GS1 Business comment:
 
Produced using Direct Thermal process.
Bars very reflective and too narrow, therefore reducing contrast, hence low Modulation.
Some bars so reflective they are seen as spaces (Global Threshold violation).
Magnification factor is 22.6% (Z-Module 226). Minimum standard for use in distribution is 50% (495).
 
Evaluation: ISO/IEC 15416, ISO/IEC 15417, GS1 General Specification
 
Measurements: 3 Measurements of 3  
Symbol: Fail 0.0/10/670  
List of errors:  
01) Error Element determination
02) Error Modulation too low, actual: 42%, Min Value: 50%
03) Error Global threshold violation
04) Warning PCS-SC too low, actual: 0.68, Min Value: 0.75
05) Warning PCS-EC too low, actual: 0.31, Min Value: 0.75
06) Warning PCS-EC Rb too high, actual: 65%, Max Value: 47%
07) Warning Bar too narrow, actual: -390%, Min Value: -100%
08) Warning Space too large, actual: 405%, Max Value: 100%
09) Warning Mean too small, actual: -216%, Min Value: -100%
10) Warning E-Value too small, actual: -135%, Min Value: -100%
11) Warning P-Value too small, actual: -280%, Min Value: -100%
12) Warning P-Value too large, actual: 125%, Max Value: 100%
13) Error Z-Module too small, actual: 226, Min Value: 495
 
Selected Grade 2 (1.5)        
Overall symbol grade 0.0        
           
Scan: 1 2 3 [Average]  
           
Decode: 0 4 4 [2.6]  
Edge Contrast: 4 4 4 [4.0 (30%)]  
Symbol Contrast: 3 3 3 [3.0 (67%)]  
Modulation 1 1 1 [1.0 (44%)]  
Rmin/Rmax: 4 4 4 [4.0 (32%)]  
Defects 2 1 2 [1.6 (25%)]  
Decodability 4 4 4 [4.0 (67%)]  
OPTIONAL PARAMETERS          
           
Z-Module 0 0 0 [0.0 (226)]  
           
SRP grade 0 0 0    
Overall symbol grade       0.0  
Bar Devition -18% -18% -19% [-18%]  
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