Canon LBP6780x Manual page 897

Set a usable emulation using [Auto Mode Selection].
Solution 2
"[Setup] Menu ([Print Mode] Options)"
Cannot store. <Auto Error Skip>
<Cause 1> [SD Card] in the Control Menu options in the Setup menu is set to [Off].
Perform the following procedure.
1. Cancel printing by pressing [
Solution
2. Set [SD Card] to [On] and print again.
<Cause 2> The number of the jobs exceeded the amount of jobs the printer can store.
The printer is ready to print by pressing [
Solution 1
Solution 2 Delete unnecessary stored jobs.
<Cause 3> There is not sufficient free space on the SD card.
The printer is ready to print by pressing [
Solution 1
Solution 2 Delete unnecessary stored jobs.
<Cause 4> The specified box number is not correct.
Solution Specify the correct box number.
Cannot verify. <Auto Error Skip>
<Cause 1> The department ID and password entered for your job did not match the department ID and
password registered on the machine.
Press [
Solution
department ID and password.
<Cause 2> Printing jobs with unknown IDs are disallowed.
Allow print jobs with unknown IDs from the Remote UI.
Solution
"Specifying an ID for Each Department "
Check paper size.
<Cause 1> The size of the paper loaded in a paper source is different from the following settings.
Setting for [Output Size] in the [Page Setup] tab in the printer driver
[MP Tray Paper Size], [Drawer 1 Size], [Drawer 2 Size] or [Drawer 3 Size] in the [Select Feeder] menu
Specify the setting properly.
Solution "Registering the Paper Size"
"Configuring the Printer Driver and Printing"
"[Setup] Menu ([Control Menu] Options)"
] ( : Online) to cancel printing, and then print your job again by entering the correct
] ( : Online).
] ( : Online), ignoring the print data.
] ( : Online), ignoring the print data.