HP Pro 8500, 8500 DN, 8500 N manual Troubleshooting Checklist, Problem or Error Message Solution

Troubleshooting Checklist

If the printer does not appear to be functioning correctly, check the following items:

Problem or Error Message	Solution
The printer control panel display is blank.	Make sure the printer’s power switch is on.
	The printer might be in Power Save mode. Press [Go].
	Make sure all power cables are securely attached and plugged into a
	grounded power source.
The printer control panel displays OFFLINE	Press [Go].
Printer control panel displays	Either no cable, a bad cable, or only a LocalTalk cable is attached to the
EIO 1 INITIALIZING.	HP JetDirect internal print server.
	For LocalTalk connections, the message should disappear after
	approximately 5 minutes, during which normal printing is possible. Check
	the cable connection.
	The HP JetDirect internal print server might be improperly installed.
	Reinstall the print server.
	There might be a network problem. See the HP JetDirect Print Server
	Software Installation Guide. Also, see “Step 4: Connecting the Printer to
	a Network” about how to add 50-Ohm terminators, if necessary.
Cannot print from the computer using a parallel	The cable might be installed incorrectly, too long, or faulty. Remove the
cable.	cable and reconnect it, making sure it is securely connected. Try another
	parallel cable under 10 feet (approximately 3 meters) in length. Replace
	the cable with an HP parallel cable (part number C2946A) or equivalent.
	The wrong port might be selected or rerouted. Check the MODE
	statement in the AUTOEXEC.BAT file. In Windows 3.1, look in the
	Control Panel to see which port is selected. In Windows 95 or Windows
	NT, check the Parallel Port Capture.
	There might be a bad port on the computer or printer. Try using a
	different port or, if possible, a different computer or printer to isolate the
	problem.
Cannot print using a sharing device.	Try to isolate the cause of the problem. Test the printer using a cable
	connected directly from the computer to the printer. Contact the sharing
	device vendor for troubleshooting steps.
Random “garbage” characters are printing.	The interface cable might be bad or loose. Check the cable and
	connection. Try another parallel cable under 10 feet (approximately 3
	meters) in length. Replace the cable with an HP Parallel cable (part
	number C2946A) or equivalent.
Printer control panel displays	Media might be jammed in one of several locations. Clear all jams
CLEAR PAPER JAM.	according to instructions in the quick reference guide.
Printer control panel displays an unfamiliar	Turn the printer off, then back on. If the message does not clear, see the
message.	online user’s guide for more information.

For more printer control panel messages and troubleshooting solutions, see the online user’s guide.

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Troubleshooting Checklist 49