problems with firmware upgrade

[ashas at takas.lt]

Can anybody explain me if it is possible to check drivers for errors?
This error is common just for Freebsd, because google returns result 
just for this os.

I am running a FreeBSD 6.0.
To get working my printer( HP LaserJet1000 usb - works on linux) I have 
to upgrade my firmware, but
when upgrading firmware

 # cat SIhp1000.dl > /dev/ulpt0
I get "cat: stdout: Input/output error"

Searched for days in google, but it appears that all
results leads to just Freebsd OS.
Do I have to switch OS just to make my printer work?
----------------------------------------------------------------
 #dmesg | grep ulpt
 ulpt0: Hewlett-Packard hp LaserJet 1000, rev
 1.10/1.20, addr 2, iclass 7/1
 ulpt0: using bi-directional mode

 # cat SIhp1000.dl > /dev/ulpt0
 cat: stdout: Input/output error

Maybe its issue with is with the ulpt driver ??