
Chapter 12
Troubleshooting
(continued)
| On light | Check | Check | Paper | Description | Solution | |
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| On | Blinking | Blinking | Both | The control panel | 1. | Turn the HP All- | 
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 | blinking | overlay is not | 
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 | attached or is not | 2. | Attach the control | 
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 | attached properly. | 
 | panel overlay | 
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 | using the | 
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 | instructions in the | 
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 | Setup Guide. | 
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 | 3. | Turn the HP All- | 
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| Blinking | Blinking | Blinking | Both off | Scanner failure | Turn the HP  | |
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 | One off, then on | |
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 | If the problem | |
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 | persists, contact HP | |
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 | customer support. | |
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| Blinking | Blinking | Blinking | Both | The HP  | 1. | Turn the HP All- | 
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 | blinking | has a fatal error. | 
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 | 2. | Unplug the power | 
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 | cord. | 
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 | 3. | Wait a minute, | 
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 | then plug the | 
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 | power cord back | 
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 | in. | 
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 | 4. | Turn the HP All- | 
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 | If the problem | |
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 | persists, contact HP | |
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Device messages
The following is a list of 
•Firmware revision mismatch
•Mechanism error
•Memory is full
•Scanner failure
Firmware revision mismatch
Cause: The revision number of the HP 
Solution: To find support and warranty information, go to the HP Web site at www.hp.com/support. If prompted, choose your country/region, and then click Contact HP for information on calling for technical support.
116 Troubleshooting