When an Error Message Appears
0W20-08A
When you encounter an operation problem such as when a print processing error occurs or the memory becomes full,
a message appears on the screen. Find out more information about messages in the following list.
Cannot analyze the authentication server certificate.
The authentication server certificate may be invalid, or the certificate may be in a format that the
printer does not support.
●
Check the authentication server certificate.
Configuring IEEE 802.1X Authentication(P. 248)
Cannot find the access point.
When automatic setting with WPS was attempted, a wireless router could not be detected within a
specific period of time.
●
Connect again paying attention to the time limit.
Setting Up Connection Using WPS Push Button Mode(P. 138)
Setting Up Connection Using WPS PIN Code Mode(P. 140)
An SSID or network key of a wireless router was entered manually, but the entry was incorrect.
●
Check the SSID and network key, and enter the correct ones again.
Checking the SSID and Network Key(P. 150)
Setting Up Connection by Specifying Detailed Settings(P. 146)
A wireless router could not be detected due to setting problems of the network to be connected.
●
Check whether the machine is properly installed and ready to connect to the network.
Installation/Settings Problems(P. 369)
●
If the problem persists, check the security settings of the wireless router.
Cart. end of lifetime. Rplcmt. recommended.
The toner cartridge has reached the end of its lifetime.
●
Replacement of the toner cartridge is recommended.
How to Replace Toner Cartridges(P. 400)
Change the authentication password.
The password has expired.
●
Set a new password.
Troubleshooting
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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 ...