result in deviation of the paper; in worse case replacing wheels is needed。
7.5 Question: why does lock up happen in plotting output?
Answer：(1). Exterior 220 V input voltage is too low (150V), the plotter will restart thus
lock up happen。
(2). When disturbance of exterior 220 V input voltage is too high, lock up may
happen, to resolve it you can use purified regulated power source。
7.6 Question: Why does the machine feel tingle?
Answer: the machine might be improperly grounded, make sure central line of the power
source grounded。
7.7 Question: why does the job feel not smooth with sharp-angle raised when plotting?
Answer: (1). The protruding length of knife top is too long, please adjust it as required.
(2). The knife is abraded, replace it。
7.8 Question: why does the plotter first scratch a line before plotting?
Answer: because the machine illegally escape last time, there is still knife-dropping
instruction existing in the memory of plotter. To resolve it power off the
machine and turn it on again。
7.9 Question: No LCD display or a black row of blocks are displayed?
Answer: (1). In case of no display, check whether the power work well。
(2). If black blocks are displayed, check whether voltage is at required level. If
troubles remain after the above operation, please contact maintenance center。
7.10 Question: why can not some characters close in strokes when it is plotting?
Answer: because the knife of the plotter is eccentric knife with a eccentric value, to
resolve it, set“closing compensation”in the software. For example: in
“Wentai” software:
(1). Click“plotting output”once, a plotting output picture will pop up。
(2). Click“set”once, a picture of setting plotter will pop up。
(3). Click“compensation setting” a dialog box will pop up。
(4). Select closing compensation, adjust the value to required level,
generally the value is set to be 0.5。
7.11 Question: Why the machines have missed some pave of letter when cutting?
Answer：(1). Check the machine if it presses enough。
(2). Reinstall the software。
(3). Chook the head of the knife。
(4). If the problem is still in existence, please contact with repair center。
7.12 Question: why is the machine in low-speed state after start-up?
Answer： Because paper sensor fails to detect the fore end of paper. When feeding
paper make fore end of paper cover hole of paper sensor, then perform
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