Telpar, Inc. MTP Series Receipt Thermal Printer User Manual
2011 Telpar, Inc. (Rev.20110809)
Page 16
4 Printer Control
4.1
DIP Switch Settings and Print Darkness Adjustment
Note: Both the Printer‟s DIP Switch and Print Darkness Adjustment can be accessed through the cutout in the
metal chassis as shown:
DIP Switch Settings:
Each Printer in the MTP series of printers has a DIP Switch located on the main circuit
board (see photo below). The DIP Switch contains a bank of eight individual switches, each of which controls
some aspect of the printer and are described in the table below.
The switches can slide up into the “ON” position
or downs into the “OFF” position (the picture below shows switches 1, 2, and 3 in the “OFF” position, and switches
4, 5, 6, 7, and 8 in the “ON” position. A small tip screwdriver or even a pen tip may be used to change the position
of the switches.
The DIP Switch on each type of printer can be accessed through a cutout hole on the metal circuit board cover
–
therefore, DIP Switch changes can be made without removing the cover.
IMPORTANT NOTE
: If you make any
changes to the DIP Switch settings, you must first cycle power to the printer in order for the changes to take place.
Print Darkness Adjustment:
Control R35 on the circuit board is the Print Darkness (or Print Density) Control (see
photo below). Clockwise rotation of the control increases print darkness, but also consumes more current and
shortens the life of the print head. Therefore, it is recommended that the darkness level be increased to the point
that just meets the desired darkness level under the normal ambient operating conditions for the printer application.
DIP Switch contains a bank of eight
individual switches with each switch
controlling some functional aspect of
the printer (see table below). Here,
positions 1-
3 are shown “OFF” while
4-
8 are shown “ON”.
The Print Darkness (Print Density)
adjustment is located below the DIP
Switch as shown. Rotation
clockwise increases the print
darkness, but also draws more
current and decreases the life of the
print head element. It is
recommended that the darkness
level be increased to the point that
just meets the desired darkness
level under the normal ambient
operating conditions for the printer.
application
DIP Switch Bank as
looking through the
printer‟s chassis
Print Darkness
Adjustment as
looking through
the chassis
