The 355nm UV laser marking machine has no display, the power supply fan without rotating and printing problems

Ultraviolet laser marking machine belongs to the series of laser marking machines, but it is developed using 355nm ultraviolet laser. This machine uses third-order intracavity frequency doubling technology. Compared with infrared laser, the 355 ultraviolet light focused spot is extremely small and can be used in It greatly reduces the mechanical deformation of materials and has little impact on processing heat. It is mainly used for ultra-fine marking and engraving. It is especially suitable for marking food and medical packaging materials, drilling micro holes, high-speed dividing of glass materials and silicon Application areas such as complex pattern cutting on wafers.

The UV laser marking machine is a series of laser marking machines. Therefore, the principle is similar to that of the laser marking machine. They both use laser beams to mark permanent marks on the surfaces of various materials. The marking effect is to directly break the molecular chains of substances through short-wavelength lasers (unlike the evaporation of surface substances produced by long-wavelength lasers to expose deep substances), thereby revealing the required etched patterns and text.

So, what are the common faults of UV laser marking machines? What is the cause of the failure? Today the technical editor will analyze and answer for you.

Analysis of common faults and causes of UV laser marking machines:

1. Computer failure

a. No display on the computer screen

 Cause analysis:

The screen signal cable is poorly connected or the computer display card is damaged; the video cable is damaged; the computer graphics card is damaged; the monitor is not powered on or the switch is not turned on; the monitor contrast and brightness settings are inappropriate;

Solution:

Plug in the screen signal cable or replace the computer display card; reset the monitor brightness and contrast; power on the monitor.

b. The screen displays errors, graphics are displayed, and characters are damaged.

Cause analysis:

Incorrect operation;

Solution:

Press the computer's reset switch (Reset) and restart the computer.

c. The power fan does not spin after the computer is started.

Cause analysis:

The computer's regulated power supply is damaged; the fan blades are stuck by foreign objects;

Solution:

Replace the computer's regulated power supply (standard power supply is not expensive, replacement is more convenient and cheaper than repair); remove foreign matter from the fan blades.

d. No indicator light comes on after the computer or controller of the UV laser marking machine is turned on.

Cause analysis:

The power cord plug is not plugged in; the power cord is disconnected; the power cord (or plug) is corroded; the printing switch is damaged; the socket has no power.

Solution:

Plug in the power cord; confirm whether the socket has power (Note: Please do not repair if you lack relevant knowledge. If necessary, consult a professional).

2. UV laser marking machine printing problems

a. The printing needle of the UV laser marking machine does not move.

Cause analysis:

The compression screws on the X and Y axis drive belts of the printer are loose.

Solution:

Tighten the compression screws on the X and Y axis drive belts of the printer.

b. Printing is normal, but the characters are not beautiful.

Cause analysis:

The printing needle is not tightened; the printing needle tip is damaged; the printing needle cannot move due to lack of lubrication or foreign matter stuck;

Solution:

Tighten the printing needle and replace it if necessary; check the track and belt, clean and lubricate if necessary.

c. The printing process suddenly stops

Cause analysis:

External interference.

Solution:

Press the power switch on the controller panel to restart the controller.

The above is how to troubleshoot and solve the problem when the UV laser marking machine encounters a fault. If it cannot be solved, please seek professional help from the after-sales team of the equipment manufacturer to avoid replacing the hard disk and reinstalling all files.