Reason1：Focus distance is not fine.
Solution：Adjust it again. Smaller the focus point is, the more precise you get.
Reason2：You forgot to do Bmp Scan Setup.
Solution：Please reference to your manual how to do Bmp Scan Setup.
Reason3：The image is not clear.
Solution：Change the resolution ratio in some graphic software.
Reason4：Working speed is too fast.
Solution：Change the speed.
Reason5：Image has not been dealt with in Photograph Software properly.
Solution：Do it again.
Reason6: Synchronous wheel and synchronous belt are out of position.
Solution: Try to correct them.

Reason1：Focus is not correct.
Solution：Adjust again.
Reason2：Laser power is not enough.
Solution：Make it larger.
Reason3：Water Temperature is high.
Solution：Change water.
Reason4：Laser tube is out of use.
Solution：Change a new one.
Reason5：Optical path deflection.
Solution：Adjustment.
Reason6：Dirt on mirror.
Solution：Clean it.

Reason1：Resolution ratio and distance between lines are two big.
Solution：Set the parameter again.
Reason2：Laser power is too strong.
Solution：Lower it.
Reason3：Exhaust fan is not open.
Solution：Turn on it.

Reason1：Fast speed.
Solution：Make it lower.
Reason2：High resolution ratio.
Solution：Adjust.
Reason3：Error in computer sytem.
Solution：Renew your system.
Reason4：Low current in driver.
Solution：Adjust.
Reason5：Synchronous wheel in Y axis is loosen.
Solution：Tight it.

Reason1：Reflect lense is broken.
Solution：Change.
Reason2：A and B slots on water sensor are rusted or not been connected very well.
Solution：Check connection and assure water flowing smoothly from point A to B.
Reason3：Laser path is wrong.
Solution：Adjustment.
Reason4：Setup in Control Panel.
Solution：Reset.
Reason5：Long-working.
Solution：Change Water in container.

Reason1：Check Overlap and Smallest Power setup in software.
Solution：Reset.
Reason2：Sychronous belt and screws of sychronous wheel are loosen.
Solution：Tighten.
Reason3：Start piont for the design is not good.
Solution：Set it again.

Reason1：Laser is not vertical with working table.
Solution：Rearrange working table to vertical with laser.
Reason2：Focus point is not right.
Solution：Make the middle part of thick wood as focus point.
Reason3：Focus lens is not suitable.
Solution：Change it to the right one.

Solution1：Check whether sychronous is loosen.
Solution 2：Reboot computer and machine.
Solution 3：Check whether mainboard driver program has been installed very well.
Solution 4：Check whether motor driver indicator lights are woking normally.
Solution 5： Check DC power supply indicator lights is ok.

Solution 1：Detect your computer to check whether it is effected with virus.
Solution 2：Emission signal wire is connected wrongly.

Solution：
Check whether sychronous belt is loosen,Please lubricate guide periodly(not too much),Check wheels on axises are running swiftly and smoothly,Check belt has no friction with sychronous wheel.