| 1.Focus laser head can't radiate light. 
          a) Laser can't 
          radiate light:
 1) Laser power wan 
          not turned on.Turn on the laser power supply.
 2) Some problem occurs in the junction 
          between laser tube and laser power connect it well.
 3) The laser tube damaged because of 
          aging : replace a new one.
 4) The laser power supply damaged: 
          replace a new power supply. There is no signal for laser radiation 
          from the control system.
 5) Examine the connection between the 
          control system and the power of laser, and check the control system.
 
          b) Deflection of light way lens/mirrors: reset 
          light way. 
          2. Cutting or engraving depth is not enough.
 1) The setting of 
          laser power export is too low: set the laser power output to a higher 
          level in the control panel.
 2) Cutting/engraving speed is too high: 
          set the speed to a lower level in the control panel.
 3) Reflex mirrors and focus lens in the 
          light way have polluted or the plating reflex menbrane of the mirrors 
          surface and clarity increasing menbrane of the lens surface damaged: 
          clean the lens/mirrors or change a new lens/mirrors.
 4) The focus of lens is not in correct 
          place :reset focus point.
 5) Aging porblem of laser tube: increase 
          laser power setting value or change laser tube.
 6) output electric current not powerful 
          enough: adjust the power supply or change to another one.
 
          3. After the computer output typesetting, the 
          machine can't move.
 1) The power supply 
          of driven system of engraving machine is not turned on: turn the power 
          on.
 2) The communicate cable between computer 
          and engraving machine is not connected well:turn off main power switch 
          and connect them well.
 3) The motion control card or the soft 
          dog is not well installed
 
          4. There are redundant threads in engraving or 
          cutting course.
 1) There are some 
          problems with communication cable: Please change communication cable.
 2) Engraving machine and computer are not 
          earthed well: let the machine and computer earthed reliably.
 3) There are creep age or the clutter in 
          the computer power supply: change or maintain the computer power 
          supply.
 4) Computer system error:reinstall 
          computer operation system or chang another computer.
 5) There are too many temporary files in 
          the computer: clear the computer system in time and delete the 
          temporary files.
 6) Application software error: reinstall 
          application software and setup the driven software.
 7) If using the machine in moisture 
          surrounding and lots of dust accumulating on the
 machine case,communication cable or the inside connection line will 
          make the power
 discharge disturb: clean and warm-up the machine before use it.
 8) Unsteadiness of outer power caused by 
          power disturbance: choose an more pure power supply.
 9) There are high frequency disturb 
          source around the machine: keep away with the haigh requency disturb 
          source.
 
 
          5. The output is rejected,there are something 
          discord locally, or file is missed partly.
 1) The design 
          exceeds the range: check the range of the design, then reduce the 
          design range to the apporpriate range.
 2) The file size is too large: reduce the 
          setting defintion, or increase the scanning step distance, or to scan 
          sengraving function without pre-accelerate.
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