Troubleshooting
Bidirectional communications problems
These events indicate bidirectional communications problems:
•A message displays on your computer screen indicating your printer cannot establish bidirectional communications with your computer.
•Print cartridge ink level indicators on the Status or Cartridges Tabs of the printer's Control Program are grayed out.
•Job progress information and printer paper feeding error messages (such as Paper Out) do not display on your computer screen.
Before proceeding, verify:
•The printer is able to send and receive data:
aUnplug the printer power cord from the electrical outlet.
bMake sure the parallel cable is securely attached to both the computer and the printer.
cPlug the printer power cord into a properly grounded electrical outlet.
•If you have a switch box or other device connected to the computer's parallel port, make sure it supports bidirectional communication. You may need to disconnect your printer from the switch box or other device and connect the printer directly to your computer.
44 Troubleshooting
