1.The outdoor computer photo jet machine is used solvent ink which is easy to volatility and dry rapidly, it is apt to cause the stopping up of the shower nozzle.

2. After the shower nozzle block, the permanent damage of shower nozzle often happen due to improperly to wash it,thus the srapping rate of shower nozzle blocking is extremely high, it raised the cost of manufacture greatly .

3. We succeed in developing and use vibration of shower nozzle washing machine which computer procedure to control the piezocrystal. It helps photo jet company which is using xaar-128 shoer nozzel to solve the technological problem of not damage ,wash and maintain shower nozzel.