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. Precautions for use and Maintenance ............................................................... 23
6.1 Daily caution .................................................................................................................. 23
6.2 Maintenance ................................................................................................................... 24
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. Regular failure and failure elimination ............................................................ 26
7.1. No ray ............................................................................................................................ 26
7.2 The laser is very weak. ................................................................................................... 28
7.3 The engraving surface is not plain.................................................................................. 28
7.4 Spots scattered, not focusing, lens cone heat…phenomena of laser engraving machine.29
7.5 Sparking from the exit of laser head............................................................................... 30
7.6 Water chiller alarming .................................................................................................... 30
7.7 X axis or Y axis does not move around or move abnormally. ........................................ 30
7.8 Laser head or beam shaking. .......................................................................................... 31
7.9 Different engraving depth or could not engrave deep depth .......................................... 31
7.10 Wrong engraving and not following the file engraving................................................ 32
7.11 Wrong size or not closing and malposition when its engraving ................................... 32
7.12 No output from the computer ....................................................................................... 32
7.13 SOFTWARE ERROR ALERT INTERFACE............................................................... 33
7.14 Normal problems of software ....................................................................................... 35
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. Regulations of repair guarantee ........................................................................ 36