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3. Shut down the printer computer, wait 60 seconds after the monitor goes
blank, and turn off the main power switch.
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4. Using an 8-mm hex (Allen) key, open the two latches that secure the back
of the materials cabinet and remove the back of the cabinet.
5. Locate the 10-micron filters, installed for the relevant material.
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6. Put on protective gloves.
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7. Disconnect the tube connected to the top (inlet) side of the material filter.
8. Make sure that the fitting at the end of the feed-tube remains attached to
the tube. Re-attach it, if necessary.
9. Cover the filter with a cleaning cloth (or paper towels) to absorb material
spillage.
