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and drain the reflux ink from the negative pressure box.
D. Replacement of filters：
It is recommended to replace the filter every three months or after 800
hours of continuous work to ensure smooth ink supply.
二、
Maintenance of moving parts of the machine
A. Maintenance of guideways and sliders
1. Clean and lubricate guide beams at least once every three months. Apply
enough low-fat lubricant to the joints of moving parts.
2. Clean and lubricate the transmission parts such as slider and bearing
of trolley at least once every three months.
Filters
Spread a little oil on the surface
of the guide rail,and to be even.
