HP Color Laserjet 2600n - "Printer is not responding"

I've been trying to install an HP Color Laserjet 2600n printer for use over a network connection from my Linux desktop, but I can't get it working and I'm not sure what else to try. I am using Parabola, which is a libre variant of Arch. I have installed the 'foo2hp ' driver, which apparently supports this printer model. In CUPS, if I go to 'add new printer', it seems to discover it fine over the network. I select the driver from the model list, which includes this model. All of that seems to work fine, and I get a page for the new printer that says 'Idle, Accepting Jobs, Not Shared'. However, if I try to print a test page or send a print job to it, I get an error message saying 'The Printer is not Responding'. The printer works fine with my wife's Apple Powerbook, so I know it works and it is accepting jobs over the network. If I do $ avahi-browse --all --ignore-local --resolve --terminate, I get the following lines relating to the HP printer: = wlp3s0 IPv4 HP Color LaserJet 2600n PDL Printer local hostname = [NPIC0ED3E.local] address = [169.254.68.128] port = txt = ["Binary=T" "Transparent=T" "usb_MDL=HP Color LaserJet 2600n" "usb_MFG=Hewlett-Packard" "adminurl=http://169.254.68.128 " "priority=30" "product=(Hewlett-Packard HP Color LaserJet 2600n)" "ty=HP Color LaserJet 2600n" "pdl=application/vnd.zeno-zjs,application/vnd.cups-raster" "qtotal=1" "txtvers=1"] = wlp3s0 IPv4 HP Color LaserJet 2600n Web Site local hostname = [NPIC0ED3E.local] address = [169.254.68.128] port = txt = [] This implies there is a web page I should be able to use to manage the printer. However, if I type 169.254.68.128 into my web browser, nothing happens and it eventually times out. The printer also doesn't seem to respond to ping requests from my desktop. So, it seems that something is not right with the connection (although it seems to respond to the Powerbook fine, as mentioned earlier)? Any ideas what the issue might be? I've spent several hours already trying to get this thing running and I'm out of ideas. **Update:** I have confirmed that the printer responds to pings from the Powerbook and allows access to the management web page, but not from my desktop or laptop, which are both running Parabola Linux.