Xerox Phaser Connected But Not Printing

Question

After searching the forum for many different terms, I couldn't find anyone with a problem like mine.
I'm using OS 10.4.11 to connect to a printer on a Windows server using LDP. I can add the printer, the PPD works, and when I print, the job shows up in the queue, then moves to the "Completed" section. But it never prints. I can even go to "Supply Levels" and it gets the correct toner levels for the printer, so I know they're connecting. But my computer thinks the job has printed, even though it hasn't. What gives?
And here's the kicker: This machine is in an office with many other Macs using the same operating system and very similar setups, and they all print fine. I even copied the PPDs from one of those machines to the troublemaker, just to make sure they were correct. And I've copied the printer settings from one of the working machines exactly, so I assume it must be an OS issue, not a printer issue, but I'm stumped...
Tech Details:
-Dual Processor PowerPC
-OS 10.4.11
-Xerox Phaser 5500N & Xerox Phaser 7750DN, both connected via Ethernet to Windows server
-LDP connection to Printer
-Correct and updated PPD

Answer 1

Your problem could be as simple as an incorrect LPR queue name.
When you create an LPR queue, for some printers it is important to enter a specific queue name. If you leave the queue name or enter the wrong information, then this can show the job has left the Mac - hence the completed result in the log - but it never prints as it doesn't find the correct port on the printer.
A quick look at the CUPS web page (http://127.0.0.1:631/printers) on the other Mac's would show if they are using a specific queue name. An example would be lpr://ipaddress_ofprinter/print where print would be the queue name.
If this doesn't help you could change what protocol is being used for the queue - you may find the Phaser supports IPP or HP JetDirect Socket, which can be shown as RAW Port 9100 on your printer.