¶ Issue Description
The AP board cannot detect the nozzle camera due to a loss of camera signal.
Possible causes are listed below in order of likelihood:
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Loose connection between the camera and the TH board.
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Disconnected or unstable USB-C cable.
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Faulty TH board.
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Malfunctioning nozzle camera.
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Faulty AP board.
¶ Troubleshooting
¶ Tools, Equipment and Materials
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H2.0 Allen key
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H1.5 Allen key
¶ Fault Isolation Process
¶ Solutions
Users may adjust the order of these solutions as needed.
¶ Step 1. Restart the printer and initiate printing again
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Restart the printer and start printing several times to check if the warning reappears.
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If the warning disappears, it can be ignored.
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If the warning persists, check if there is also a toolhead camera offline warning.
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If only the nozzle camera is offline, proceed to Step 2.
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If both cameras are offline simultaneously, proceed to Step 4.
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¶ Step 2. Reconnect the nozzle camera cable
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Refer to this wiki Disassemble the H2D toolhead to disassemble the toolhead and expose the TH board.
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Disconnect and reconnect the nozzle camera connector.
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Restart and attempt printing again to check if the issue is resolved.
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If the issue persists, proceed to Step 3 to replace the nozzle camera.
¶ Step 3. Replace the nozzle camera
Refer to the wiki Disassemble the H2D toolhead to replace the nozzle camera.
¶ Step 4. Check the USB-C cable status
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Inspect the USB-C cable for damage; replace it if damaged.
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Check the connection between the USB-C cable and the AP board.
Refer to the wiki Disassemble the H2D toolhead to expose the AP board. If the connection is loose, reconnect it.
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Check the connection between the USB-C cable and the TH board.
Refer to the wiki Disassemble the H2D toolhead to expose the TH board. If the connection is loose, reconnect it.
If the USB-C cable is in good condition, proceed to Step 5 to replace the TH board.
¶ Step 5. Replace the TH board
Refer to the wiki Disassemble the H2D toolhead to replace the TH board. Restart and attempt printing. If the issue persists, proceed to Step 6 to replace the AP board.
¶ Step 6. Replace the AP board
Refer to the wiki Replace H2D AP board to replace the AP board.
¶ End Notes
We hope the detailed guide provided has been helpful and informative.
If this guide does not solve your problem, please submit a technical ticket, will answer your questions and provide assistance.
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