If you are trying to get the Keyspan adapter to work running of Mac OS 9.1 or earlier and are having no luck getting a receipt to print, we recommend three things:
1) Delete and re-install the Keyspan software. To do this:
-> go into the System Folder/Extensions/ and delete the KeyspanUSA19Wdrvr
-> go into the System Folder/Control Panels/ and delete the Keyspan USA19W Serial Assistant
-> go into the System Folder/ and delete the Keyspan USA19W Manager
2) Upgrading to Mac OS 9.22
The upgrade is free and can be found at: http://docs.info.apple.com/article.html?artnum=120030&SaveKCWindowURL=http%3A%2F%2Fkbase.info.apple.com%2Fcgi-bin%2FWebObjects%2Fkbase.woa%2Fwa%2FSaveKCToHomePage&searchMode=Expert&kbhost=kbase.info.apple.com&showButton=false&randomValue=100&showSurvey=false&sessionID=anonymous|159275806
Or, if this link does not work, search for 9.2 upgrade in the Software area at http://www.Apple.com.
The one you want is:
Once OS 9.2 is installed, please install the Keyspan software again from the CD-ROM but DO NOT PLUG THE ADAPTER into the USB on your iMac until the software has been installed and your computer re-started.
Upon re-start, you should be able to print a Receipt to your Epson printer from the Receipts area of BookingCenter without a problem.
3) If the above does not work, then we recommend you: