I have three peripherals attached to my parallel port.
#1 Syquest removeable hard drive(for backups)
#2 SCM compact flash card reader(for digital camera)
#3 HP 660Cse printer
Each item works fine when attached all by itself.
The middle item is not recognized when all three are daisy chained together.
The printer is always last and I swap the card reader and
removeable drive back and forth from closest to the computer
to second in line.
I have a Pentium computer with Windows 95