TM-T88III Printer set-up guide
Replacement or New Installation?
If replacing an existing printer:
- Verify that the printer model and data connection are
the same on both printers
- Configure - copy the connection settings from old to
- Test - plug in and test the new printer
- New Installation
If installing a new printer, or a different model or same model with
a different interface:
- Install driver software on the computer
- Connect the printer to the computer using the right
- Configure the printer on the computer
- Test - confirm that the printer prints from the
Remove the printer
from the packaging and shipping protection. Ensure that
you have all of the accessories and components you need
to set-up the unit. Generally this will include a power
supply, a data communication cable, and a roll of thermal paper.
The TM-T88III requires a
24 Volt power supply (Epson models
PS-150, PS-170, PS-180, DA-36E24, M235A). Please
make sure you are not using an older 33V power supply
that has the same pin pattern but won't work with any of
our printers. Check for correct
power supply here.
Unless you've ordered a printer kit, the printer cable
is not included with new or refurbished printers. With
the exception of serial interfaces, all printers use
standard (parallel, USB or Ethernet) printer cables
available from an electronics store. Serial printers
most commonly use a null modem type cable but may
require a custom serial adapter. Consult your POS vendor
for more information.
Install the correct type of paper into the printer.
Paper must thermal and
the correct width. To check if you have the right paper
installed, check here.
Printers have DIP switches to set communications
parameters and certain specific functions on the
These switches are located on the
bottom of the unit behind a small removable
metal cover held on by a single screw. If you are
replacing a printer or have another in the same
environment, it is best to match the settings on that
unit to ensure the new printer is able to communicate
correctly. For a listing of specific DIP Switch settings
by model, please visit our
main support page.
There is a multitude of
Point-of-Sale software and configuration settings. For
questions regarding the configuration of a software
installation or the function of other POS hardware
components, you should contact the manufacturer or your
POS system directly. If you are changing a printer in an
existing POS set-up the best approach is to make sure
the DIP settings on the old and new printers match
exactly (if they are the same model and series).
Turn on the printer. If the unit is hooked up correctly and ready
to test, there will be no error lights showing. The lights should light solid
and not flash. If lights are flashing check to see if
the printer is setup correctly (ie. paper is installed,
data cable is connected, etc.).
Run the self-test on the printer; turn printer off
and power back on while holding down the Feed
button. This test will print the settings of the unit
and a series of test characters. If this self-test
prints correctly, the problem is external to the
printer. For instructions for specific printers,
If you are having trouble getting the unit to print
correctly, there are a number of different things you
can try to isolate or solve the problem:
- Reboot the computer/terminal and cycle the power
on the printer. This step ensures that all of the
software and settings are loaded correctly.
- If you have another printer of the same model,
swap that unit in and try to print. This will
determine if the communications cable and
computer/terminal are functioning correctly and if
the problem is with that specific printer unit.
- If you have a data cable of the same type
(null-modem serial, parallel, USB, Ethernet), swap
out the cable and attempt to print again. Data
cables can fail rarely, and this step will determine
if the cable is the issue.
- If you are connecting to a Windows PC, you can
go into the Control Panel / System / Hardware /
Device Manager / Ports and determine if the port is
functioning and the port number matches with the
setup of your software.
- Try our TM series
troubleshooter for more detailed
- If you have exhausted the options above and are
still unable to print correctly, you can reach
Beagle Hardware support at: 800-253-6407