Before maintenance of print head, Make sure to power off the printer and pull out the power cable first. Otherwise, it is probably to burn out the printhead and main board. When cleaning printhead, the film of the jet hole under the print head cannot be touched by anything Otherwise the printhead will get blocked or scratched and even the whole printhead will be damaged and can not be used anymore.

In most cases, it is caused by confliction between carriage belts, so the tension wheel can be tiny fastened.Gear shafts at both sides are easy to dry, and lubrication oil can be added on them. If the shaft is worn out, gears should be changed. During installation and commissioning, the angle of the dual-gear bracket should be properly adjusted to avoid the belt inclined to one side and damaged.If the carriage shakes while running, in most cases, it is because of belt skipping, adding some lubrication oil can solve the problem. In other cases, it may be caused by other reasons such as belt out of shape, slide block bearing damaged, straight rail too dirty or poor driving device.

During image printing, inkjet printer suddenly stops working, and the computer sends the alarm of data transmission error.It is caused by the computer slowing down due to too many programs running together. Restart the computer and print again.Computer running slows down because of virus attack. If the virus cannot be removed, Operation system will have to be reloaded.The computer is connected to other computers, and the others are transmitting data to it. To disconnect from the network is OK.USB port device is connected or removed from the computer, and the computer rechecks whether USB devices work normally, which also causes computer slowing down. Such situation also occurs when a USB device is connected to copy some files. To solve such problem, pause the jetting process when a USB device is to be connected or removed, and resume the jetting after the USB device completes the operation.In the course of jetting, if other programs are running at the same time, data transmission error is occurres easily; this is because that control program takes up a large amount of memory and CPU resources of the computing during its running, and running other programs at the same time would cause the computer to appear data transmission error.Worn or overlong USB cable may also cause the data transmission error of computer.USB interface of the main board has a problem.

 1. Cause: the jet is more and more slant to one side during printing
Solution: Need to check the pinch roller pressure well-distributed or not, and then adjust its
2.  Cause: Dislocated from left and right in printing
Solution: you need to wipe the encoder strip with the cotton bud and keep environment clean. If still not improve; you need to replace the encoder strip with a new one. Check whether the belt is damaged or not. Please replace the belt with a new one while It is damaged
3.Cause: Encoder Sensor too dirty
Solution: Remove encoder sensor to clean it or just change a new one.
4.Cause: The printing speed is too fast, in poor printing quality
Solution: To improve the printing quality
5.Cause: the carriage motor is damaged
Solution: Replace the motor with a new one

1.Cause: Remnants in the print head  
Solution: perform cleaning print head
2.Cause: There are remnants in the tube or ink damper
Solution: Cleaning ink tube and damper
3.Cause: Ink was polluted
Solution: Replace the ink
4.Cause: Environmental problem, the temperature too low
Solution: to install air-condition in order to improve environmental temperature
5.Cause: the surface of the print head too dirty, its surface covered by fluff
Solution: cleaning the surface of the print head
6.Cause: wiper or capping station too dirty
Solution: to clean wiper, ink damper and capping station
8.Cause: Print head is in bad condition    
Solution:Replace the print head with a new one
9.Cause: air in the ink damper
Solution: Pumped out the air from ink damper by the syringe