Canon imageCLASS D1650 All-in-One Monochrome Laser Printer - Manual (Page 637)

Configuring IEEE 802.1X Authentication Settings(P. 396)
The authentication server certificate is incorrect.
There is no CA certificate registered in the printer that is compatible with the authentication server
certificate.
● Check that there is a CA certificate registered in the printer that is compatible with the authentication
server certificate.
Configuring IEEE 802.1X Authentication Settings(P. 396)
The computer is restricted.
Scanning that is operated on the operation panel is disabled in the Department ID Management.
● Log in to the Remote UI in System Manager Mode, display the edit screen of the corresponding
Department ID, and select the [Allow Scan Jobs with Unknown IDs] check box.
Setting the Department ID Management(P. 353)
The fax number has too many digits.
A fax could not be sent because the specified destination fax number had too many digits.
● Specify the destination fax number which does not exceed the maximum number of digits allowed.
<Use Addr. Book When On-Hook>(P. 528)
The memory is full.
A fax could not be sent or received, or an original could not be scanned due to insufficient memory
space.
● If a sending or printing job is queued, wait until the job is completed.
● If a received document is stored to memory, print or delete it.
Saving Received Documents into the Machine (Memory Reception)(P. 236)
● If sending an original with many pages, divide it into multiple sections.
● If sending a fax, reduce the resolution to scan the original.
Basic Operations for Sending Faxes(P. 215)
● If scanning, change the file format to reduce its file size.
Basic Operations for Scanning Originals(P. 281)
A scanned original could not be stored to a USB memory device due to insufficient memory space.
● Delete unnecessary data to free space in the USB memory device, or connect a different USB memory
device.
Using a USB Memory Device(P. 185)
Troubleshooting
629