E-03 HOSON 汉森
Applies to: UV / UV DTF（负压供墨机型） · Firmware: v2.3 - v3.1
What the customer sees
E-03 shown; prints drip ink or drop out.
Most likely causes (ranked)
35% Vacuum pump weakening
30% Air-tube leak / loose fitting
20% Vacuum setting drifted
15% Vacuum sensor failure
4 steps the customer can do
1
Check the vacuum gauge against the model's standard range.
2
Visually check air tubes for looseness, kinks or cracks.
3
Confirm cartridge/sub-tank ink levels are normal.
4
Photograph the vacuum reading and the error.
3 technician steps
1
Calibrate vacuum parameters (factory values).
2
Replace aged tubing and fittings.
3
Service or replace the vacuum pump.
3 customer prohibitions
Related parts: 负压泵 / 气管 / 负压传感器
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.