Verifying Printer Communications With Your System - Intermec 3440 User Manual

3440 Bar Code Label Printer User's Manual

Verifying Printer Communications With Your System

After connecting the printer to your system, you need to test the
communications. The easiest way to test communications is to set the
printer to Data Line Print mode, which is part of Test and Service mode,
and send a character string down from your system.
If you have just printed a configuration test label, you are already in Data
Line Print mode. Start the following procedure with Step 4.
To verify communications with your system
1. Turn the On/Off switch to the off position.
2. Press and hold the Feed/Pause button while you turn the On/Off switch
3. Release the Feed/Pause button. You are now in Data Line Print mode.
4. Transmit at least four characters from your system.
5. To enter normal Print mode, turn the printer power off and then on
If this procedure does not work, make sure that the DIP switches match the
serial port configuration of the system. Also, make sure you have the printer
cable securely plugged into the correct port of your system.
If you receive a write fault error, your cabling may not be correct. See
"Connecting the Printer to Your System" earlier in this chapter for more
information.
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to the on position. The printer prints the hardware configuration test
label.
At this point the printer does not attempt to interpret any printer
commands, but simply prints each character with its hexadecimal
equivalent underneath.
Note: An example of using DOS to verify printer communications follows this
procedure.
again.
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