Bus 004 Device 004: ID 067b:2305 Prolific Technology, Inc. PL2305 Parallel Port
attachments are the error_logs.
with blacklisting and uni-directional mode: transaction timeout (attachment on this post - job 3)
with blacklisting bi-directional mode: transaction timeout (attachment below - job 4)
without blacklisting: not recognised: "Printer State" reports "Stopped - Unplugged or turned off"; usb_printerid /dev/usb/lp0 says:
I'm using the same adapter as yourself:
Bus 004 Device 004: ID 067b:2305 Prolific Technology, Inc. PL2305 Parallel Port
attachments are the error_logs.
with blacklisting and uni-directional mode: transaction timeout (attachment on this post - job 3)
with blacklisting bi-directional mode: transaction timeout (attachment below - job 4)
without blacklisting: not recognised: "Printer State" reports "Stopped - Unplugged or turned off"; usb_printerid /dev/usb/lp0 says:
$ sudo usb_printerid /dev/usb/lp0 CMD:GDI; MDL:ML- 4500;CLS: PRINTER; MODE:GDI; STATUS: IDLE;
GET_DEVICE_ID string:
MFG:Samsung;