For sharing a printer by connecting two computers via crossed-cable or using a hub, a connection among computers must be established.
Establishing a connection among computers is verified by displaying the connected computers in Network Neighborhood on the desktop.
Toner Cartridges, Maintenance Kits and Parts

3 Items
Black Genuine Toner Cartridge Standard Yield, 5,000 pages
Black Genuine Toner Kit Standard Yield, 30,000 pages
Genuine Drum Standard Yield, 30,000 pages
The WORKiO DP 150 uses PAN DQ-UG15A and PAN DQ-RK05A (PAN DQRK05A) toner cartridges. PAN DQ-UG15A yields 5000 pages; PAN DQ-RK05A yields 30000 pages.
PAN DQ-UG15A prints 5000 pages, PAN DQ-RK05A (PAN DQRK05A) prints 30000 pages. Choose PAN DQ-RK05A (PAN DQRK05A) for high-volume printing (lower cost per page); PAN DQ-UG15A costs less upfront for occasional use.
The PAN DQ-RK05A cartridge has an approximate yield of 30000 pages.
Yes — the WORKiO DP 150 uses a replaceable imaging drum: PAN DQ-UH32A (PAN DQUH32A).
The "Supply Problem" notice on the WORKiO DP 150 is typically a recognition fault, not a defective cartridge. Start by turning the printer off for 30 seconds. Reseat the cartridge, clean its chip contacts with a dry cloth, then power back on. If nothing changes, the fix is a fresh PAN DQ-RK05A.