Roland TS-30

Hola here victor from Germany,
I had recently purchased this great item for my univ, and i would really enjoy using this machine under LinuxCNC.
When connect this to the konsole i get the following readings as a printer:

Oct 25 12:41:31 rvxmint kernel: [ 713.846054] usb 3-1: new full-speed USB device number 4 using ohci-pci
Oct 25 12:41:31 rvxmint kernel: [ 714.073914] usb 3-1: New USB device found, idVendor=0b75, idProduct=0255
Oct 25 12:41:31 rvxmint kernel: [ 714.073918] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Oct 25 12:41:31 rvxmint kernel: [ 714.073921] usb 3-1: Product: TS-30
Oct 25 12:41:31 rvxmint kernel: [ 714.073923] usb 3-1: Manufacturer: Roland DG
Oct 25 12:41:31 rvxmint kernel: [ 714.073926] usb 3-1: SerialNumber: 001
Oct 25 12:41:32 rvxmint kernel: [ 714.525642] usblp 3-1:1.0: usblp1: USB Bidirectional printer dev 4 if 0 alt 0 proto 2 vid 0x0B75 pid 0x0255
Oct 25 12:41:32 rvxmint kernel: [ 714.525779] usbcore: registered new interface driver usblp
Oct 25 12:41:37 rvxmint kernel: [ 719.602074] usblp1: removed
Oct 25 12:41:37 rvxmint kernel: [ 719.632124] usblp 3-1:1.0: usblp1: USB Bidirectional printer dev 4 if 0 alt 0 proto 2 vid 0x0B75 pid 0x0255

I had also made the following photos of the main board for the 3 axix steppers and the spindle.
I'm guessing that the USB might be just a USB to parallel port adapter, connected by the white flat cable.
If this is true we could make the configuration much easier.
Thank you very much for your time!
/v

Hola Andy!
Thanks for your fast answer.
I have with me a 4ch Rigol DS1074 100mhz scope and i could get also a 10ch. logic analyser.
I have also consider the idea of use some cheap 3axis boards + Baglebone-pru, but i thought could be also a good possibility to use the system its already there and maybe just produce in the lab the USB interface, luckilly I´m not in a hurry for this and I could document the process so other could benefit from this (?)
So any ideas are very wellcome!
/v