I tried it on my netmos - it works!
1. Add /V key and remove /IRQ key from PRINT01.SYS
I.e. PRINT01.SYS /V
It will show adresses and irqs on boot...
2. Remove ACPI.PSD from config.sys
Not sure about David`s versions, but with Pasha`s 3.16:
* in APIC - driver cannot see card because "no interrupt" in PCI data (ACPI.PSD filters it, I think)
* in PIC - system hangs before PM (may be this is my card's bug, it shows IRQ 0)
Without ACPI.PSD - printer works fine
You can make two config.sys files, for example and select it from loader menu (QSINIT or OS/4)... Or, may be - David`s version fixes something...