HandTop HT3200-UV K Series, Инструкция по установке

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For rough surface and heat sensitive material, please adjust the vacuum
power and area before printing, this is to get more stable suction.
Since the height sensor is not in the base point, it may never touch the
substrate if the medium is in very small size.
To avoid this from happening under this circumstance, it is recommended to
place the media under the sensor to perform height detect then register the media
to the printing area.
Do not open the registration device during printing, or it will also scratch the
print head. The motor driver will automatically lock down and cause defective
printing