Epson Receipt Printer T88IV with serial to usb

Posted on 2012-09-12
Last Modified: 2012-09-16
I am having trouble getting an epson receipt printer to work on windows xp.  I know these thermal printers can be finicky.    The printer  has a serial output  with a belkin serial to usb adapter.  

If I create a generic text printer, I can at least print.  But trying to install the advanced printer driver 4, I get either, "user intervention required" or "not ready".  Each time I have tried a different port or driver, I have uninstalled the previous driver through add/remove programs.    

Unfortunately, this computer does not have a regula serial port.   I have another computer which I can't use for production that does have a serial port and when I take off the belkin, it works fine.  

I have downloaded the belkin drivers and the epson usb driver.  I have tried to set the printer up as serial, parallel and usb.  I am pretty sure it is supposed to be serial.  

I'm ready to just use the generic printer.  I would like to figure this out though.  Any insight would be appreciated.
Question by:Scott Fell,  EE MVE
    LVL 30

    Expert Comment

    Open device manager and expand the Ports entry.
    Find the USB to Serial entry
    Double-click the entry to open it's properties
    Look at the current settings. Make sure that the settings match the default settings of the printer, as determined by the dip switches. This includes the Baud Rate.

    The printer, in default mode, is set as follows:

    Handshake: DTR/DSR
    Bit Length: 8 Bits
    Parity Check : No
    Parity Selection: Odd
    Baud Rate: 38400
    LVL 30

    Expert Comment

    btw...what kind of cable are you using?

    9 to 9 pin?
    9 to 25 pin?
    LVL 52

    Author Comment

    by:Scott Fell, EE MVE
    To your first part I have done that.  Actually the printer is set to parity none and baud rate 9600.   It is a 9 to 25 where the 25 is at the printer.

    I think it might need a virtual port?  I have never set that up.  From reading other posts, it I have un installed the drivers.  Restarted then with the printer not attached, installed the drivers.  I have drivers for the printer, drivers for the usb converter and drivers for the usb and the printer.   I have the drivers from  I have tried both the most current driver and I 4.03 from 2009 for the printer driver.  

    I did figure out that each time I wanted to try a different driver configuration I had to uninstall completely, install the driver, then restart again.  The problem is the port is set to com1.   When I look at the device mgr under Ports, I have the Belkin on USB (com5), communications port (com1), ecp printer port (lpt1) and Epson Com Emulation USB port (com2).

    When I go to the printers and fax's area and change the port, nothing happens unless I am using the generic printer.
    LVL 30

    Accepted Solution

    If you haven't already, take a look at this page:

    Also verify that the 9 to 25 pin cable matches the wiring diagram as shown.
    LVL 62

    Expert Comment

    by:☠ MASQ ☠
    Is there capacity to add a serial port on a PCI board?
    It's likely the Belkin adaptor isn't fully supporting bi-directional printing functions so some messages get lost.
    LVL 52

    Author Comment

    by:Scott Fell, EE MVE
    Thanks. I have been to that page a bunch of times already.    The cable is pre wired and has the numbers 2901-6mf9 and googleing that shows it to be a null modem serial cable which is what tech support at epson said.   However, Epson tech support does not support the usb conversion add on so I couldn't get to far with them.

    I have been at this for a couple of days.  I'm wondering if it just is not meant to be.  Like I said, it works fine on another windows xp when I just use the cable without the usb conversion.   And it works when with the usb when I make a generic printer.    Is there any advantage I get in using the epson driver vs the generic?
    LVL 30

    Expert Comment

    The only things I can think of is possibly advanced formatting capabilities. Other than that, I guess you would have to simply test it to ensure it does what you need it to do.
    LVL 52

    Author Closing Comment

    by:Scott Fell, EE MVE
    That was kind of the answer.   I think the real issue is using the serial to usb converter.    For the advanced driver, I downgraded to version 3 from 4 and that did some of the trick.   I am using escp/p codes to print now so the apd is not needed.  

    Thank you for your help!

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