Canon BJC-3000 - Manual (Page 191)

191 Troubleshooting - Printout is Unsatisfactory
Meaningless characters, symbols printed
Check 3 Are the printer and computer securely connected?
Check the printer cable connections at the printer and computer. A faulty or
loose connection can generate meaningless characters and symbols to
print.
Connecting and Switching On the Printer
Check 4 Is the printer port set to ECP?
When the printer port of the computer to the ECP mode, the printer may not
perform a print job properly. Cancel the ECP mode, and print again.
If the problem is not solved, contact a hardware manufacturer.
Check 5 Is the problem in the original file?
If meaningless character or symbols are printed only when you print a cer-
tain file, the cause of the problem may be in the file or the application pro-
gram you are using. Rebuild the file and print it again.
If the rebuilt file prints correctly, the original file was probably faulty.
If the rebuilt file does not print correctly, contact a software manufacturer.
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