![](/images/new-backgrounds/1196311/19631143x1.webp)
4036-304
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| MFD |
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Error number and | Number | controller | LED pattern |
| Action | ||
description | of beeps | card | (on= | , off= | ) | ||
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Error: 41 - Scanner interface | 4 | 1st |
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| The scanner image | |
not found |
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| processor board was | |
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| not found. Check | |
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| connections to the | |
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| interface board. If | |
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| connections are good, | |
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| replace the image | |
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| 2nd |
| N/A |
| processor board. | |
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Error: 51 - Not enough | 5 | 1st |
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| The memory DIMM was | |
memory |
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| not detected or not | |
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| functioning. Replace the | |
Note: Error message not |
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| memory DIMM. | |
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displayed. Only beep code |
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and LED patterns are |
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generated for error 51. |
| 2nd |
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Error: 52 - Not enough | 5 | 1st |
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| The memory DIMM was | |
memory |
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| found, but not enough | |
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| memory is present. | |
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| Replace the memory | |
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| DIMM. | |
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| 2nd |
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Error: 71 - User Interface | 7 | 1st |
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| A problem was detected | |
failure |
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| with the user interface. | |
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| Check the connection of | |
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| all cables connecting | |
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| the UI to the MFD | |
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| controller card. If cables | |
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| are okay, replace the | |
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| 2nd |
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| user interface. If | |
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| problem persists, | ||
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| replace the MFD | |
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| controller card. |