●
When only IEEE 802.11n is used for the wireless communication, WEP is selected or the WPA/WPA2
encryption method is set to TKIP.
Problem with the USB Connection
Cannot communicate.
●
Change the USB cable. If you are using a long USB cable, replace it with a short one.
●
If you are using a USB hub, connect the machine directly to your computer using a USB cable.
Problem with the Print Server
You cannot find the print server to connect to.
●
Are the print server and computer connected correctly?
●
Is the print server running?
●
Do you have user rights to connect to the print server? If you are not sure, contact the server administrator.
●
Is [Network discovery] enabled? (Windows Vista/7/8/Server 2008/Server 2012)
Enabling [Network discovery](P. 474)
You cannot connect to a shared printer.
●
On the network, does the machine appear among the printers of the print server? If it is not displayed,
contact the network or server administrator.
Displaying Shared Printers in the Print Server(P. 475)
Troubleshooting
372
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 ...