Laser Machine Common Malfunction Services

Common maintenance(1)

Accident Phenomenon	Ways of Analysis	Solutions
Continuous Light after power on	1.First check the mainboard parameters, the laser model is correct or not	The laser mode is the "analog signal" or "double-headed laser control."
	2.Wiring board or the button panel bad is bad.	Replace the wiring board or the button panel
	3.Laser power failure	Replace the laser power
	4.Main board failure	Replace the main board
High-voltage spark during  work	1.To determine the position sparked in   high pressure. If the laser tube and laser power at high pressure spark,please check the joint is placed correctly or the supporting points of high-pressure is wet or not.	Please connect joints with  holders of insulating card or by a hairdryer to dry the damp part very well.
	2.Check whether high pressure joint docking firm,without virtual company, virtual welding phenomenon	To ensure no virtual and  solder joint stably free from distractions, docking firm.
	3.The ignition inside the laser power	Replace the laser power
	4.High-pressure terminal of aser tube spark or after replacement of the laser power is still sparking	Replace the laser tube
Cleaning uneven or sometimes deeply engraving or other abnormal phenomenon	1.Check the lens and the optical	Clean the lens, adjust light paht
	2.Check the graphics resolution and scanning accuracy	Increase the graphics resolution and scanning accuracy
	3.The aging of the laser tube or laser power have problems	Replace the laser tube or laser power
Crochet  straight line or with wave phenomenon	Focus lens or reflector mirrors loosen	Fixed trolly, or change the slider block.
	2.The mechanical parts or software have problems	Repair machinery or the graphical portion

Common maintenance(2)

Accident Phenomenon	Ways of Analysis	Solutions
The outlet of laser head spark	1.If used in the industries of rubber plates, specially for impure rubber sheet, there will be no impact to use.	Not need to deal with, suggest customers to use high-quality rubber sheet.
	2.Check laser head white jet pipe ,whether have strong airflow spray, because jet pipe path very long ,easy to bend, block or worn out	Clean or replace the white jet pipe
	3.check the air pump itself is breakdown, such as pump a small amount of air or do not work	Replace the pump
Circulating water  heat up soon	1.The  intensity of Laser light is too large	Under the premise to the best cutting depth to decrease the light's intensity
	2.Uninterrupted long hours to work	Suggest customersevery three hours to rest half an hour
	3. Check the cooling water outlet pipe i its reflux is normal, the water flow if smooth, latex tube inside the machine whether bend or not	Straighten the pipes, so that flow smoothly
	4. Check water pump or its inlet , outlet pipes whether too dirty, water protection if clogging	Clean water pump and water pipes, replace water protection
	5.Check submersible pump out of water and  water pressure if normal, such as the water is very small	Replace the water pump or water cooling machine
Chiller alarm	1. Firstly,to ensure that the users'power supply system is normal, low voltage easily causes chiller alarm.	Ensure the voltage is normal, if necessary,use the voltage regulator
	2. See  the water in the chiller  enough, the water is too little will alarm	Fill up the pure water
	3. Water pipes if blocked or bend, water protection if blocked, will cause the alarm	Clean or straighten out the  water pipes and water protection
	4. the temperature of cooling water if too high, the water temperature exceeds the limit value, will cause alarm.	Change the water often, or stophalf an hour and then to work.
	5. Check water pump insider water chiller whether the water is normal, no water or less water	Replace the water chiller
No display after use  or press the button  not to work.	1. Reboot to see its gantry and the laser lead moving is normal or not, the panel always shows you" the boot reset"	Detection control panel or motor lines loose or not.
	2. Boot reset is normal, pressing the arrow keys and function keys on the machine panel, to see whether it is normal, if button is normal	LCD block is broken, please replace
	3.Boot panel do not display ,the laser head do not work	Detection board if DC 24V input or not .
	4.If after the control panel replacement is normal, the key is still no work; by data line to control equipment, the machine no work , the board is bad	Replace the mainboard
Current instability or Uncontrolled	1.if the mainboard and wiring board is wrong	Replace the main board or wring board
	2.Laser power supply has problems	Replace the laser power supply
shake phenomenon for laser head and its gantry	1.First check the main board parameters	Re-download the configuration
	2.Turn off the machine, by hands to move the laser head and its gantry, if the apparent resistance,please check the tension of left wheel and its slider.	Clean guide rail ,slider ,replace tension wheel
	3.Check timing belt, air pipe or red  light jammed or not, the crossbeam whether offset serious	Adjust the beams and belts, straighten out the inflatable tube and red
	4.Check the motor and the driverif have problems	Replace the motor or drive
	5.With resistors row  of the models, to measure the resistance value is  normal, if have problems	Replace the resistors row
	6.If the problem persists, the main board may failure	Replace the main board
Computer to download the processed data failure or communication failure or the machine does not move.	1. The boot reset whether normal, if not normal	Gradually processing by the above fault
	2. Reset is normal , press the test button, if unable to complete self-test,	Detection software engraving or cutting bar if is selected as the "output"
	3. The self-test can be completed, check whether reliable grounding	Deal with a good grounding to meet the relevant requirements
	4.Check the main board data interface if open welding	Open welding required depot repair
	5.Through U disk to download to the board inside to perform processing	Can not work, the board is bad
	6. Computer USB failure	Replace the USB port or replace the computer

Common Fault Repair(3)

Accident Phenomenon	Ways of Analysis	Solutions
Crochet is not closed	1.Measuring beam is parallel and diagonal, under normal circumstances, the left and right deviation is less than 2MM, 500MM square diagonal error of no more than 0.5MM	Adjust the beams and stringers parallel, reducing the error
	2.check the car belt and  beams belt tightness whether appropriate, both sides of the belt tensioner whether in the same extent	Adjust the tightness of the belt on both sides is not too much difference
	3.Power state, sliding car and beams by hand , gently move the small front up and down, see if there are mechanical clearance, if have	To step up the motor or drive shaft synchronization wheel, replace the slider
Cleaning or Crochet dislocation	1.Any graphics, too fast will cause dislocation	Reduce the work speed
	2.In the output of software to enlarge the original graphics,  the check   graphic itself, with or without dislocation	To correct the error in the original graphic
	3.Try to make another sample version, to see whether only some graphics have problems ,if there are not	Graphical data errors, re-production renderings
	4.Check the timing belt if is too loose, beams on both sides of the belt tensioner if in the same degree	Adjust the timing belt tightness
	5.Motor and drive shaft synchronization wheel whether have gaps	Tighten the synchronization wheel
	6.Check the beam  whether is parallel to the beam bearings and trolley slider if have wear and tear phenomenon	Adjust the beam parallel, replace the bearing or slider
	7.Main board or driverfailure	Replace the main board or drive
.Cleaning or Crochet Has Jagged	1.Work speed is too fast	Reduce the speed
	2.If use BMP bitmap format output, view graphics resolution	under the premise Graphic size is correct, as far as possible to increase the resolution e
	3.Small car and the beam timing belt if too loose or too tight	Adjust the degree of timing belt tensioner
	4. Check X tensioning wheel, whether due to wear and tear appear gap	Replace the tensioner pulley
	5.Shutdown the machine, check small front or slider if have gap	Replace the slider or fastening the small front
	6.Check four laser lenses  whether  damaged or loose, especially the reflector mirror and the focusing mirror on the small front whether securely installed	Tightening loose lenses, or replace the damaged lens
	7.Check beam bearing and bearing wheel whether damaged	Replace the bearing and bearing wheel
The cleaning effect is not good, The Crochet lines is very crude	1. Check  the focal length  whether  correct   focal  length, especially after  lens cleaning or replacing with new lenses (here note that the focusing mirror is directional)	Adjust the correct focal length value
	2. Check the four lenses  whether damaged or too dirty  (lens damaged or too dirty, makes  laser light  scattering)	Replace or clean mirrors
	3.Check the laser tube the beam quality of the optical port, if there are two  spots or spot is not round, hollow, etc. points of support for the laser tube, the direction if appropriate, the laser tube itself	Adjust the bearing, the direction of rotation, replace the laser tube

Common Fault Repair(4)

Accident phenomenon	Ways of Analysis	Solutions
No laser beam during working	1.First check the laser tube itself if light (in the light exit test)  laser tube is light	Check the lens whether damaged, the optical path whether  offset
	2.Laser tube to the light exit light, check whether the normal water cycle (see the water pipe flow smoothly), such as water or poor water	To clean water pump and straighten water pipes out.
	3. Please check water circulating very well or not; the indicator light of laser power supply turns on; the power fan whether moving or not. If no move.	To replace laser power supply.
	4. If no laser beam out when to click the button of laser power supply	Something is wrong for laser power supply or laser tube. Please check them.
	5. There will be laser light when to click " laser" button	The water protection is wrong. Please replace.
	6.If  still no laser light when short circuit for water protection.	The fault from  mainboard or wiring board. Please replace it.
Cleaning becomes shallow	1.to check light intensity and water temperature. If super speed, small light intensity or hot water temperature.	Increase light intensity,under-speed ,to change circulating water.
	2. If  the depth of crisperding is abnormal	Increase resolution or scanning precision
	3. If the depth of crisperding is sallow or deep	To check the mirrors wheather dirty or damaged. Or  correct light path.
	4. To check ampere meter whether up to 20MA. If the depth is still shallow	Please change laser tube
laser light is abnormal or not during working	1. To check the mirror if too dirty and damaged  or not and light path	Please clean or change mirrors or correct light path
	2. If light path is very well, please check water circulating	Please clean water pump or change one new and dredge pipes
	3.If water circulating is normal, please check its water protection device	Please change its water protection device
	4. If still problem can not solve, please check main board, laser power supply and laser tube again	Alternate above replacement parts to find out the reasons
the wrong size during Graphics output	1.To check the PLT format 's plotter unit from ,carldraw is 1016 or not.	To change the plotter unit as 1016
	2. If resolution is right or not	Please calculate resolution again
The machine 's reset is normal or not	1. The direction is right after reset.But the laser head and gantry can not stop when arrive at the top point( to check the technical parameter is right or not, if ok.)	If be stuck when moving. To check the main board and its sensor is good or not. If wrong, please change one new.
	2.If the gantry after set is normal, the laser head can not reset very well. The regulating wheel or Motor shaft broken, or technical data is wrong.	Please change regulating wheel and motor; change technical parameter;Check motor line plug-connecting
	3. the gantry move oppositely or hit sides.	The parameter data is wrong. Please power off and correct parameter data.then to download configuration again.
	4.driver or motor is wrong	Please replace driver or motors
The machine stop work or be unusual During working	1.Check the machine grounding status, measurement standard of ground wire (whether resistance should be greater than 5 ohms	To correct ground wire to standard level
	2.Check whether the original graphic mistakes, such as graphic have cross, not closed, or lack of stroke, etc	Correct the mistakes in the graphics
	3.If do other graphics without the problem, just a graphics appear such problems	Graphics data processing error, back to the rendering
	4.Problems Still Exist	the computer may be a serial port, or the problem of main board. Please check it.