try the following
1. select system preferences, open the manu and then sharing.
2.if the computer name field is blank, enter the name of your computer but if there is a name already,
all you habe to do is renaming it.
3. close the sharing windows.
4. select system preferences, print and fax/print and scan then select your printer in the printer list.
click options and supplies.
5. Select general, if necessary. in the location field, enter the computer name you enterd in
step 2.then click ok.
TRY PRINTING AGAIN
NOTE: if the solution above doesn't fix the error, please contact