Hi Bandit. I just solved this problem myself with a little help from Rebecca Huber at Xante and a hint from John at ChoreoGraphics in Midland, TX. The fix goes like this.
You need to reset the ip address that is resident in your printer. Default from the factory is actually blank. The test sheet from start up will say that the ip address is 192.9.200.201 if it is left at factory default.
To assign the ip address, you need one machine that is still OS 10.5 or earlier that can communicate with the printer across the ethernet network.
Open text edit, you'll find in your applications folder and copy the following text:
%!PS
true 0 startjob
(%IP%) <</IPAddress (192.9.200.201) /NetworkMask (255.255.255.0)>> setdevparams
(%IP_NV%) <</IPAddress (192.9.200.201) /NetworkMask (255.255.255.0)>> setdevparams
systemdict /quit get exec
You will need to change the IP address to conform with your network. You can determine your IP mask by opening system preferences/network on any machine on your network. the first three numbers are your networks mask. Like with the IP Address in the above lines, the mask is 192.9.200. That last number identifies the specific machine (computer/printer, etc). Do not use as the number for your printer any ID number from anything else on your network. Also, the numbers 0, 1 and 127 are reserved addresses which shouldn't be used. So in the two spots above where there is an IPAddress, change it to your unique number that you want to assign for your printer and then save the file to your desktop on the machine that still communicates with the Accel-a-Writer 8300. Name the file: SetIPAddress.ps
Open Terminal, that's an app in your Applications/utilites folder. From the prompt type: cd desktop
Hit enter and at the next prompt type: lpr SetIPAddress.ps
Hit enter again and the IP address will be reset on you Accel-a-Writer 8300. To check that it held, turn the printer off and then restart it. The test page should print showing you the new Ethernet Address that you assigned.
At that point, you add a new printer from system preferences/Printer&Fax using the IP option for set up. From LPD enter your new printer ip address and add whatever descriptive name will be helpful. Manually select Printer Driver and choose the Accel-a-Writer driver selecting whatever memory and tray options you have and add the printer. It will now show up on Snow Leopard and later systems across the ethernet.
Happy printing...