HP OfficeJet J4550 (j4000 series) - Can't Scan/Fax when using Windows XP pc as print server

[R Fajarda]

My brand new HP Officejet J4550 is connected to my Windows XP (Sp2) pc via USB. It is a shared printed, which means other PCs in the network can "see"/use it. From the Windows XP pc, I'm able to print, scan, and fax using HP Officejet J4550.

The Windows XP (SP2) pc is connected to the network via wireless router.

My iMac OS X 10.5 was able to "Find" the HP Officejet J4550 under the Windows XP pc. I'm able to print from the Mac but not much else. Scanning and faxing do not work. I only get an error message saying some "communication error" occurred.

Also, when I connected the HP Officejet J4550 to the Mac via USB, I'm able to print, scan, and fax using the HP Device Manager.

How can I scan and fax from the Mac to the HP Officejet J4550, via the Windows XP pc? Will a dedicated HP print server (Wireless G) help?

Thanks.