Canon LBP6230dw Manual page 172

USB connection
Have you selected the correct port? If there is no port to use or you are not sure, reinstall the printer driver. When
you reinstall the printer driver, the correct port is created automatically.
Checking the Printer Port
Printer Driver Installation Guide
Is bidirectional communication enabled? Enable bidirectional communication, and restart the computer.
Checking Bidirectional Communication
Disable security software and other resident software.
Connect to another USB port on the computer.
Delete the USB class driver, and then reinstall the printer driver.
Printer Driver Installation Guide
Can you print from a USB connection to another computer? If you also cannot print from other computers, contact
your local authorized Canon dealer or the Canon help line.
Via print server
Can you print from the print server? If you can print from the print server, check the connection between your
computer and the print server.
Problems via the Print Server
Disable security software and other resident software.
Reinstall the printer driver.
Printer Driver Installation Guide
Can you print from other computers via the print server? If you also cannot print from other computers, contact your
local authorized Canon dealer or the Canon help line.
It takes a long time before printing starts.
Did you print on narrow paper? After you print to narrow width paper, the machine may cool itself to maintain the print quality.
As a result, it may take some time before the next job is printed. Wait until the machine is ready to print. Printing will resume
when the temperature inside the machine has fallen.
A blank sheet is output (nothing is printed).
Did you pull the sealing tape out when loading the toner cartridge? If you did not pull it out, remove the toner cartridge, pull
the sealing tape out, and reload the toner cartridge.
How to Replace Toner Cartridges
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