E-15 SENYANG 森阳
Applies to: DTF / 写真机（森阳板） · Firmware: v1.6 - v2.2
What the customer sees
E-15 mid-print; software reports connection lost.
Most likely causes (ranked)
50% Poor or over-long USB cable
20% Oxidized port, poor contact
20% Driver problem
10% Mainboard port failure
4 steps the customer can do
1
Use a quality USB cable under 3m with ferrite cores.
2
Try another PC USB port (prefer rear ports).
3
Reinstall the printer driver.
4
Send a small file as a print test.
3 technician steps
1
Check mainboard USB/LAN ports.
2
Replace the interface board.
3
Upgrade firmware if needed (technician).
3 customer prohibitions
Related parts: USB 线 / 接口板
Start step-by-step diagnosis from this code →Contact an online technician (Human-Gate PENDING)← Error Codes
High-risk actions enter the Human-Gate queue and are never auto-executed.