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4220 Flow Meter
Section 6 Maintenance and Service
6-7
6.4 Maintenance of the
Printer
The internal printer needs little maintenance beyond changing
the chart roll and the ink ribbon.
Refer to the pictures provided for each section. Also refer to the
label inside the cabinet.
Figure 6-4 Changing the Chart Paper
6.4.1 Changing the Roll of
Paper
To change the chart paper you will need:
• a new roll of paper
• a knife or a pair of scissors
• a small piece of tape
The printer will shut down when the paper runs out. The roll is
nearly empty when a 1-inch wide pink band appears on the left
side of the chart.
To remove the used roll:
1. Locate the handle on the left side of the take-up roll.
2. Pull straight out on this handle until the take-up roll slips
off the printer.
3. Remove the paper roll from the take-up spool by holding
the handle in one hand with your thumb pressed against
one of the slots in the white end cap.
4. Snap the white end cap free from the two black catches on
the end of the spool.
5. Pull the paper roll off the spool with your other hand.
END CAP
REROLL SPOOL
ASSEMBLY
END CAP
SUPPLY SPOOL
ASSEMBLY
1. REMOVE REROLL AND SUPPLY ASSEMBLIES,
AND REMOVE WHITE CAPS.
2. PLACE EMPTY SPOOL ON REROLL ASSEMBLY
AND NEW SPOOL ON SUPPLY ASSEMBLY.
REPLACE BOTH END CAPS.
3. FOLD END OF NEW PAPER AS SHOWN AND
REINSTALL SUPPLY ASSEMBLY.
4. INSERT PAPER END INTO PLOTTER ENTRANCE
(MARKED BY ARROW ON PLOTTER) AND PRESS
CHART ADVANCE.
5. ADVANCE PAPER SO SEVERAL INCHES EXTEND
FROM PLOTTER.
6. REINSTALL REROLL ASSEMBLY AND TAPE
END OF PAPER TO EMPTY SPOOL.