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Posbox: Epson TM T20 with a serial cable RS 232 ?

Jeremie HO
on 3/14/14, 8:21 AM 3,459 views

Hello Community,

The Printer Epson TM T20 I bought had a serial cable RS 232 instead of USB cable.

I took a USB to RS 232 adapter to connectthe printer to the PosBox and tested the escpos library from python-escpos.

Only the below code prints something but not the "Hello world text". It prints questions marks and some signs.

""" Seiko Epson Corp. Receipt Printer M129 Definitions (EPSON TM-T88II) over US$ #Epson = printer.Serial( 0x067b,0x2303,0,0x81,0x02) Epson = printer.Serial("/dev/ttyUSB0",9600,8,2) #thats the dev the adapter gets regognized Epson.text("Hello World")

(code from raspberry pi forum)

The above code is for a Epson TM T88II so would I need to change anything?

I did check the vendor and product Id and they are the same. The iInterface is 0 and EndPointAddress is 0x02.



Karel Wullaert
On 9/5/16, 8:21 AM

Hi Jeremie,

You can buy and exchange the interface card (USB port) separately. It is not so expensive.

My problem was solved that way. I also had a Serial bus and simply unscrewed the Serial Bus Card and plugged in the one with USB port.

Hoop this can help you.


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Asked: 3/14/14, 8:21 AM
Seen: 3459 times
Last updated: 9/5/16, 8:21 AM