Midtronics MDX-P300 Instruction Manual download pdf (Page 19)

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3. Close the door and make sure the lever locks securely.

NOTE: For a clean tear, pull the paper along the edge of the plastic.

Do not pull the paper straight out of the printer.

Troubleshooting the Printer

If MDX-P300 is not connected to a 12-volt battery with at least 9 volts of

power or the paper sensor does not detect paper in the compartment dur-

ing the print process, the tester displays one of error messages described

in the table:

Error Message Interpretation

INSERT PAPER

THEN PRESS 

√ Verify that the paper is inserted correctly.

√ Insert a new roll of paper.

√ Verify that the paper sensor is clean and un-

damaged

VOLTAGE TOO

LOW TO PRINT

To print, the tester must be properly connected to a

vehicle battery having at least 9 volts.

√ Connect to a vehicle battery with enough volt-

age to enable printing.

√ Make sure that the clamps are connected prop-

erly: red clamp to the positive (+) terminal and

the black clamp to the negative (-) terminal.

√ Check that both sides of the clamps are mak-

ing contact with the terminals.

If you have questions or problems, please call Midtronics Customer Ser-

vice. See “Patents, Limited Warranty, Service” on page 22.

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Midtronics MDX-P300 Instruction Manual Page 19