Chapter 4
Problem Isolation
This chapter provides troubleshooting information, technical specifications, and signal descrip- tions (pinouts).
Problem Isolation
Table 3 provides problem/remedy information for use in troubleshooting scanner functions.
Table 3. Troubleshooting
Problem | Possible Causes | Possible Solutions |
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Beeper Indications (Also see LED and Beeper Indications on page 10)
Scanner emits frequent beeps. (USB | The USB bus may put the scanner in a | This is normal and usually happens when | |
state where power to the scanner is | |||
host interface only.) | the host cold boots. | ||
cycled on and off more than once. | |||
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| ADF transmit error. | Refer to the Advanced Data Formatting Pro- | |
Scanner emits low/high/low beeps. |
| grammer’s Guide for information about ADF | |
Invalid ADF rule is detected. | |||
| programming. | ||
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Scanner emits low/high beeps. | Input error, incorrect bar code or Cancel | Scan the correct numeric bar codes within | |
bar code was scanned. | range for the parameter programmed. | ||
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| The Code 39 buffer was erased or there | Normal when scanning the Code 39 Buffer- | |
Scanner emits low/high/low beeps. | was an attempt to clear or transmit an | ing Clear Buffer bar code or upon attempt | |
| empty buffer. | to transmit an empty Code 39 buffer. | |
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| Out of host parameter storage space. | Scan Default Parameters on page 21. | |
Scanner emits low/high/low/high beeps. |
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Out of memory for ADF rules. | Reduce the number of ADF rules or the | ||
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| number of steps in the ADF rules. | ||
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Scanner emits high/low beeps. | The scanner is buffering Code 39 data. | Normal. | |
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Scanner emits high/high/high/low |
| Normal during host reset. Otherwise, set the | |
scanner's | |||
beeps. | |||
| setting. | ||
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Scanner emits four long low beeps. | A transmission error was detected in a | This occurs if a unit is not properly config- | |
scanned bar code. The data is ignored. | ured. Verify programmed options. | ||
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Scanner emits four short high beeps | Scanner has not completed initialization. | Wait several seconds and scan again. | |
(USB only). | |||
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Product Reference Guide | 15 |
