HP 6310 All In One showing Offline but it's not

Question

Two other computers on home network are able to detect and print to an ethernet-to-router-connected HP6310. However, a third computer (Dell Latitude laptop) is showing the HP6310 installed in the Printer Folder on the home network, but is always showing up as Offline (it's not, because the other printers are able to print to it). So I can't wirelessly print to it from the Latitude laptop. However, from this same laptop, I am able to print wirelessly to ANOTHER printer (HP Laserjet 6P) that is on the network. I have tried turning off the network firewall, but that does not solve the problem.

Answer 1

nope...here are the options when i right click on the HP6310:
Open
Printing preferences
Pause printing
Cancel all documents
Sharing
Create Shortcut
Delete
Properties
 On the other HPLaserjet 6P printer that IS printing from the Latitude laptop, it doesn't give the USE PRINTER OFFLINE option either. However, there are some other printers in the folder (where do these printers come from anyway, like "Microsoft XPS Document Writer") that do give the option to USE PRINTER OFFLINE.