[03561] Magnus800 User Reports Printing Only Half - Repair Case

Note: The following content is based on English/error code interpretation and distinguishes between “possible causes” and “confirmed conclusions”. Do not treat possible causes as definite root causes.

1. Fault Symptom

Field record for Magnus800 (laser head version registered: 2.0): User reports printing only half the plate.

2. What the Error Message Means (English prompt)

Thermal Head Fatal Error [03561]: System cannot detect the data cable (thermal link / coaxial cable). Likely physical connection failure causing communication loss.

• Associated module (inferred): communication / control board (classification based on alarm text; can be revised with actual measurements).

3. Possible Causes (Not Conclusions)

The following are possible causes only. Do not write them as confirmed fault sources without verification:

1. Possible: Video cable may have been chewed by an animal or worn.
2. Possible: Data cable interface may be loose or have poor contact.
3. Possible: The socket on the laser head side or control board side may be damaged.
4. Possible: Internal core wire of the cable may be broken.
5. Possible: Data receiving circuit on the control board may be faulty.

4. Diagnostic Direction

1. Inspect the video cable appearance for physical damage or bite marks.
2. Replug the video cable at both ends; check the interface for deformation or bent pins.
3. Use a multimeter to measure continuity of each core wire.
4. Replace with a known-good video cable for testing.
5. If replacing the cable does not resolve, check the corresponding interface on the laser head control board.
6. Examine the control board (communication board) related circuits and power supply.

• Repair direction: Prioritize inspecting and replacing the video cable. If the issue persists, further check the interface or control board. Based on available information, cable damage is the most likely cause.

5. What Was Checked (Engineer Actions)

Upon inspection, the video cable was found chewed by a rat. Replaced the video cable.

6. Confirmed Root Cause (Traceable)

The root cause concluded from engineer records and analysis: The video cable (data cable) was chewed by a rat, leading to communication interruption. Note: This section is written only when sufficient traceable information is available from the repair order; otherwise, keep the conclusion open.

• Uncertainty: Other potential faults (e.g., slight interface damage or internal control board failure) have not been ruled out, but current evidence supports cable physical damage as the root cause.
• Writing angles: Quick diagnosis case for Magnus800 thermal head error 03561 / Elimination process of half-printing fault caused by chewed video cable / Analysis of relationship between data cable failure and thermal head fatal error / How field engineers located a cable issue from an error code / Preventing rodent damage to equipment cables.

7. Repair Solution Summary

(No replacement parts registered.)

• Final handling method summary: Upon inspection, the video cable was found chewed by a rat. Replaced the video cable.

8. Final Test Result

Upon inspection, the video cable was found chewed by a rat. Replaced the video cable.

9. On-site Image Index