User Guide

Troubleshooting Symptom Charts/ Networked Printer Problems - 36
Note: The iMac Update 1.0 improves the customer experience
with many USB peripherals. Apple recommends every iMac
customer install this update. The iMac Update 1.0 software is
available at no charge through Apple's Software Update Web site
http://www.apple.com/swupdates. Refer to TIL #44005 for
additional information.
2 Verify with the manufacturer of the printer that it is iMac
compatible.
3 Open the Chooser and verify that you have the correct printer
and printer driver selected.
4 Use Apple System Profiler to see if it recognizes that a USB
printer is connected.
Yes: Reinstall the printer driver.
No: The printer or its cable is malfunctioning. Replace the cable or
printer.
5 If the printer is connected to a third-party hub, switch it to
one of the iMac ports in the I/O panel. Does the printer work
now?
Yes: You have a bad third-party hub. Replace the device that
contains the problem USB port or refer to the third-party
documentation for troubleshooting procedures.
No: Go to next step.
6 If the printer is already connected to a USB port on the iMac,
switch it to the other USB port. Does the printer work now?
Yes: Replace the logic board.
No: Go to next step.
7 Perform a clean install of the system software using the Mac
OS 8.1 CD that shipped with the iMac. (You must use the
system software CD that came with the iMac in order to get
the correct version of Mac OS.
8 Replace the printer interface cable.
9 Replace the logic board.
Networked Printer Problems
An iMac cannot print
to an attached,
known-good
networked printer
1 Check the network connections.
2 Verify that you have the correct version of Mac OS 8.1 with
the appropriate iMac enablers installed. If you are unsure,
reinstall the system software using the original CD that
shipped with the iMac unit.
3 Open the Chooser and verify that you have the correct printer
and printer driver selected.
4 Perform a clean install of the system software (you must use
the system software CD that came with the iMac in order to
get the correct version of Mac OS 8.1 with the appropriate