
Chapter 2 Bar Code Failures
Table 4. Message List
| Message | Explanation | 
 | Solution | 
| 
 | 
 | 
 | |
| 
 | 
 | 
 | |
| Contrast too low | Data validation error: the | Increase Print Intensity or | |
| Check media | contrast between bars and | reduce Print Speed in the | |
| 
 | spaces is not sufficient. This | QUICK SETUP menu or via | |
| 
 | can be caused by too little | host software, change | |
| 
 | heat in the thermal transfer or | media, or disable Symbol | |
| 
 | by use of colored media or | Contrast in the VALIDATOR | |
| 
 | ribbons. | menu. | |
| 
 | 
 | 
 | 
 | 
| Poor scanning | Data validation failure: | 1. | Adjust Print Intensity | 
| Check heat&head | decodeability. The difference | 
 | and Print Speed in the | 
| 
 | between wide and narrow | 
 | QUICK SETUP menu or | 
| 
 | elements is too close for the | 
 | via host software. | 
| 
 | validator to reliably discern. | 2. | Adjust the printhead | 
| 
 | This usually indicates an | ||
| 
 | 
 | pressure. (Refer to the | |
| 
 | improperly set heat/speed/ | 
 | |
| 
 | 
 | Quick Setup Guide or | |
| 
 | pressure combination or the | 
 | |
| 
 | 
 | User’s Manual.) | |
| 
 | loss of a printhead element. | 
 | |
| 
 | 
 | 
 | |
| 
 | 
 | 
 | |
| Poor scanning | Data validation failure: | 1. Check for a wrinkled | |
| Check media | percent decode. The validator | 
 | ribbon or debris on | 
| 
 | detected gross | 
 | media. Roll wrinkled | 
| 
 | inconsistencies within the | 
 | area onto  | 
| 
 | height of the bar code. These | 
 | spindle. | 
| 
 | types of failures are likely | 2. | Adjust the printhead | 
| 
 | attributed to large blemishes | ||
| 
 | 
 | pressure blocks. (Refer | |
| 
 | within the bar code, caused | 
 | |
| 
 | 
 | to the Quick Setup | |
| 
 | by ribbon wrinkle or debris on | 
 | |
| 
 | 
 | Guide or User’s | |
| 
 | media. | 
 | |
| 
 | 
 | Manual.) | |
| 
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 | |
| 
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