Telpar, Inc. MTP Series Receipt Thermal Printer User Manual
2011 Telpar, Inc. (Rev.20110809)
Page 49
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check the following:
The default factory settings for the MTP Series serial protocol is printers is 15,200 bps (baud
rate), 8 Data Bits, 1 Stop Bit, No Parity. The Host controller (computer, PLC, etc.) must be set to
the same settings as the printer in order for the printer to print correctly.
Paper jams in Printer or Presenter
check for the following:
(ALWAYS KEEP FINGERS AND TOOLS
AWAYS FROM CUTTER BLADES!)
Obstructions in the paper path (including the paper presenter loop if a presenter is used
– it is
very important that the paper loop that forms below the presenter section does not physically
contact anything)
Misalignment of the paper path
. This is possible if the printer‟s original paper roll holder is not
being used, but rather a different design has been implemented that allows the paper roll to
be located away from or outside of the printer. If this is the case, you must make sure your
design maintains a reliably aligned paper path from the paper roll location to the printer.
Is Incorrect or out-of-spec paper is being used? Paper that is not to the paper specifications
for your printer increases the chances of having repetitive paper jams.
An Inoperable document cutter or damaged cutter blades not fully opening or closing.
Is the Customer allowed to pull the exiting document before the printer is done printing or
cutting? This is a common jam scenario. To avoid this possibility, specify the document
presenter option by added to your printer when ordering.
Printer suddenly stops and does not respond unless the power switch is cycled
check the
following:
(ALWAYS KEEP FINGERS AND TOOLS AWAYS FROM CUTTER BLADES!)
Is there a paper jam condition? Are cutter blades not fully open (if applicable)?
Check the Diagnostic / Error LEDs and use the table below to interpret the problem the printer is
reporting. See if the problem can be corrected based on the printer‟s diagnostic feedback.
Possible dirty or defective paper sensors or Print-head Latch Switch. In the case of dirty sensors
obstructed by dust or paper fragments, clean sensors by blowing pressurized air over the sensor
face.
6.2 LED Diagnostics and Error Detection Codes:
Five LED‟s are located on the printer as shown below. These LED‟s have the following functions:
Power LED
: The Top most LED Indicates 5 Volt
power is present
LED 1
Indicates the Printer is Ready when
blinking.
LED 2
provides PAPER_LOW and PAPER_OUT
status.
Blinking indicates Paper Low Status.
ON indicates Paper Out Status.
LED 3 & 4
Provide error status (see table below)
