| SYMPTOMS | POSSIBLE CAUSE(S) | SOLUTION |
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| Scanning a particular | UPC/EAN, Code 39, interleaved |
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| 2 of 5, Code 93, Code 128 and | |
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| symbology that is not | Codabar are enabled by default. |
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| enabled. | Verify that the type of bar code |
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| being read has been selected. |
| The unit powers |
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| up, but does | The scanner has been | Verify that the bar code that is |
| not scan and/or | programmed for a | |
| being scanned falls into the | ||
| beep. | character length lock, | |
| criteria. | ||
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| or a minimum length | |
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| (Typical of | |
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| and bar code being | |
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| codes. The scanner defaults to | |
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| scanned does not | |
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| a minimum of 4 character bar | |
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| satisfy the | |
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| code.) | |
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| programmed criteria. | |
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| The unit scans | The scanner is | If the scanner is setup to support |
| a bar code, but | ACK/NAK, RTS/CTS, | |
| configured to support | ||
| locks up after | XON/XOFF or D/E, verify that | |
| some form of host | ||
| the first scan | the host cable and host are | |
| handshaking but is not | ||
| (red LED stays | supporting the handshaking | |
| receiving the signal. | ||
| on). | properly. | |
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| The unit scans, | The scanner’s data | Verify that the scanner’s data |
| but the data | format matches that required by | |
| format does not match | ||
| transmitted to | the host. Make sure that the | |
| the host system | ||
| the host is | scanner is connected to the | |
| requirements. | ||
| incorrect. | proper host port. | |
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| The print quality of the |
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| bar code is suspect. |
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| Scanner beeps |
| Check print mode. The type of |
| at some bar |
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| Also check character | printer could be the problem. | |
| codes and NOT | ||
| Change print settings. For | ||
| for others of the | length lock. | |
| example change to econo mode | ||
| same bar code |
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| or high speed. | |
| symbology. |
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| The aspect ratio of the | ||
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| bar code is out of |
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| tolerance. |
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| 33 |