Triner Scale MP-20 - Manual (Page 7)

4. OPERATION
4.1 Connection of the AC Adapter
(1) Connect interface cable between the printer and data communication device using supplied cable.
(2) Plug the AC adapter into the DC power jack on the printer.
(3) Plug of the AC adapter into a power outlet supplying the designated voltage. (Use of exclusive AC
adapter is recommended. Output is DC 9V, 2.8A. Avoid using power sources not conforming to this
specification.) The Power/Status Lamp should be green.
4.2 Installing the Thermal Paper Roll
NOTE: When the printer is shipped from the factory, the paper roll is pre-installed and the printer is
ready to operate. Use these instructions when it becomes necessary to replace the paper roll.
(1) Unplug the AC adapter from the printer.
(2) Open up the Printer Cover by squeezing at the front to release, then let it fall backwards on its
hinges.
(3) Remove the Print Head Cover by lifting on the tabs towards the back. Once the back tabs are
loose, continue to lift the print head cover off and set aside.
(4) Push the green print head release lever down and towards the rear of the printer.
(5) Feed new paper roll from the bottom of the print head roller until the paper comes out from the
top. Ensure that the paper edge is straight with respect to the roller, i.e. not crooked.
(6) Push the green print head release lever up and towards the front of the printer.
(7) Use the thumbscrew on the green print head release lever to feed about an inch of paper from the
roll.
(8) Replace the Print Head Cover by first inserting the front tabs, then installing the rear tabs until the
piece is locked into position. Ensure that the paper feeds out from the slot.
(9) Close the Printer Cover.
(10) Plug the AC adapter back into the printer.
(11) After turning ON the printer, press and hold the LF/FF key until 1 or 2 inches of paper is fed out
of the printer mechanism.
4.3 Self-Test Printing
A self-printing function is incorporated in this product to enable the printer to check itself. This
function is triggered by the following procedure.
(1) Make sure a paper roll in installed.
(2) Unplug the AC adapter from the printer.
(3) Press and hold the LF/FF key while plugging the AC adapter back in. Release the LF/FF key after
the self-printing operation has started. The printer prints out a test page and then returns to Ready
Mode.
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