Epson TM-U325 Support Page

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  TM-U325
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DIP Switch Settings  
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DIP Switch Settings

Models TM-U325 (serial, parallel, USB and Ethernet)

Note: turn off the printer before changing switch settings.


Serial Interface

DIP Switch Set 1

Switch

Function

ON

OFF

1-1

Data reception error

Ignored

Prints”?”

1-2

Receive buffer capacity

45 bytes

4K bytes

1-3

Handshaking

XON/XOFF

DTR/DSR

1-4

Word length

7 bits

8 bits

1-5

Parity check

Yes

No

1-6

Parity selection

 

 

1-7, 1-8

Transmission speed (see table below)

 

 

 

Transmission Speed (BPS)-bits per second

1-7

1-8

2400

ON

ON

4800

OFF

ON

9600

ON

OFF

19200

OFF

OFF

DIP Switch Set 2

Switch

Function

ON

OFF

2-1

Handshaking (BUSY condition)

Receive buffer full

Off line or receive buffer full

2-2

Not defined

2-3

Select number of characters per line (CPL) 7 × 9 font/9 × 9 font

42CPL/35CPL

40CPL/33CPL

2-4, 2-5

Not defined

2-6

Internal use

Fixed to Off

2-7

I/F pin 6 reset signal

Enabled

Disabled

2-8

I/F pin 25 reset signal

Enabled

Disabled

Notes:
Changes in DIP switch settings (excluding switches 2-7 and 2-8) are recognized only when the printer power is turned on or when the printer is reset by using the interface. If the DIP switch setting is changed after the printer power is turned on, the change does not take effect until the printer is turned on again or is reset.
If DIP switch 2-7 or 2-8 is turned on while the printer is turned on, the printer may be reset, depending on the signal state. DIP switches should not be changed while the printer power is on.


Parallel Interface

DIP Switch Set 1

Switch

Function

ON

OFF

1-1

Auto line feed

Enabled

Disabled

1-2

Receive buffer capacity

45 bytes

4K bytes

1-3~1-8

Not defined

DIP Switch Set 2

Switch

Function

ON

OFF

2-1

Handshaking (BUSY condition)

Receive buffer full

Off line or receive buffer full

2-2

Not defined

2-3

Select number of characters per line (CPL) 7 × 9 font/9 × 9 font

42CPL/35CPL

40CPL/33CPL

2-4, 2-5

Not defined

2-6

Internal use

Fixed to Off

2-7

Not defined

2-8

I/F pin 31 reset signal

Fixed to On

Notes: Changes in DIP switch settings are recognized only when the printer power is turned on or when the printer is reset by using the interface. If the DIP switch setting is changed after the printer power is turned on, the change does not take effect until the printer is turned on again or is reset.


Installing Interfaces

For instructions on identifying a parallel or serial interface


Windows Drivers

Installing the Device Drivers for Windows

To obtain the latest Device Drivers from Epson:

  1. Download and Install Epson’s drivers  available from www.epson.com

  2. Select the printer model under the menu

  3. Click the download drivers on the printer page


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