Wired LAN connection
●
Have you selected the correct port? If there is no port to use, create a port.
Checking the Printer Port(P. 478)
Configuring Printer Ports(P. 168)
●
Is communication not limited by the firewall on your computer? If IP addresses are or an MAC address is
incorrectly entered, you will be not able to access the machine. In that case, you need to use the operation
panel to set <IPv4 Address Filter>, <IPv6 Address Filter>, or <MAC Address Filter> to <Off>.
Restricting Communication by Using Firewalls(P. 218)
IPv4 Address Filter(P. 339)
IPv6 Address Filter(P. 339)
MAC Address Filter(P. 340)
●
Disable security software and other resident software.
●
Reinstall the printer driver in accordance with the Printer Driver Installation Guide.
●
Can you print from other computers on the network? If you also cannot print from other computers,
contact your local authorized Canon dealer or the Canon help line.
USB connection
●
Have you selected the correct port? If there is no port to use or you are not sure, reinstall the printer driver
in accordance with the Printer Driver Installation Guide. When you reinstall the printer driver, the correct
port is created automatically.
Checking the Printer Port(P. 478)
●
Is bidirectional communication enabled? Enable bidirectional communication, and restart the computer.
Checking Bidirectional Communication(P. 479)
●
Disable security software and other resident software.
●
Connect to another USB port on the computer.
●
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
the print server and your computer.
Problem with the Print Server(P. 372)
●
Disable security software and other resident software.
●
Reinstall the printer driver in accordance with the 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.
Printing seems to be slow.
*
(LBP252dw)
●
Disabling Secure Print is recommended if you are not using it.
Changing the Valid Time Period for Secured Documents(P. 115)
*
When the free space in memory is running low, the processing speed of the machine becomes slow, just as a computer
does. There is nothing abnormal.
You cannot print with Google Cloud Print.
Using Google Cloud Print(P. 452)
Troubleshooting
374
Summary of Contents for imageclass LBP251dw
Page 1: ...LBP252dw LBP251dw User s Guide USRMA 0786 00 2016 06 en Copyright CANON INC 2015 ...
Page 35: ...LINKS Using the Operation Panel P 30 Basic Operations 29 ...
Page 69: ...Exiting Sleep Mode Press any key on the operation panel Basic Operations 63 ...
Page 75: ...Printing 69 ...
Page 83: ...LINKS Basic Printing Operations P 70 Checking the Printing Status and Log P 78 Printing 77 ...
Page 117: ...LINKS Printing via Secure Print P 112 Printing 111 ...
Page 122: ...Checking the Printing Status and Log P 78 Printing 116 ...
Page 178: ...3 Click OK 4 Click Close LINKS Setting Up Print Server P 173 Network 172 ...
Page 233: ...LINKS Configuring Printer Ports P 168 Security 227 ...
Page 316: ...0 Auto Shutdown is disabled 1 to 4 to 8 hr Setting Menu List 310 ...
Page 355: ...Troubleshooting 349 ...
Page 470: ...Appendix 464 ...
Page 478: ...Manual Display Settings 0W20 08J Appendix 472 ...