Canon imageCLASS MF753Cdw Multifunction Wireless Color Laser Printer - Manual (Page 732)

● If a wait time is set, a connection cannot be established immediately after turning ON the power of the
machine. Sending starts after the wait time has elapsed.
● To change the wait time, click [Edit] on the above [Waiting Time for Connection at Startup] screen, enter
the wait time, and then click [OK].
#766
The certificate has expired.
Renew the certificate, or use a certificate that is not expired.
Managing and Verifying a Key and Certificate(P. 388)
Are the current date and time on the machine correct?
Check the date and time setitngs. If the settings are not correct, set the time zone, and then set the current
date and time. Setting the Date and Time(P. 436)
#801
Error Code "#801" Is Displayed
The machine cannot connect to the SMTP server, or the information of the SMTP server or shared folder is not set
correctly.
Check the Network Status and Settings.
If the machine is not connected to a network, reconfigure the network settings.
Checking the Network Status and Settings(P. 88)
Setting Up the Network(P. 50)
Set the information of the SMTP server or shared folder correctly.
When Sending an E-mail or I-Fax
Set the information of the SMTP server correctly. Configuring Detailed Information of the E-mail
Server (Remote UI)(P. 245)
When Saving to a Shared Folder
Use Remote UI to display the Address Book, click the applicable destination, and set the information of the
shared folder correctly. Registering Destinations to the Address Book (Remote UI)(P. 164)
When Sending an E-mail or I-Fax, Check the Status of the SMTP Server.
● If you receive an error message from the SMTP server, check the details and take action.
● Check that the SMTP server is operating properly on the network. For details about the SMTP server
status, contact your provider.
When Saving to a Shared Folder, Check the Status of the Shared Folder and Computer.
Check that both the shared folder and the computer with the shared folder are operating properly.
#802
The SMTP, POP3, or FTP server name is not set correctly.
When Sending an E-mail and Sending and Receiving an I-Fax, Correctly Set the SMTP or POP3 Server
Name.
Configuring Detailed Information of the E-mail Server (Remote UI)(P. 245)
When Saving to an FTP Server, Set the FTP Server Name Correctly.
Use Remote UI to display the Address Book, click the applicable destination, and set the server name
correctly. Registering Destinations to the Address Book (Remote UI)(P. 164)
#804
You do not have permission to access the shared folder or FTP server, or the destination is not set correctly.
Troubleshooting
722