Canon Laser Shot LBP5970 User Manual page 438

<EF CHG."color" DRUM>
Cause The drum cartridge of K (Black), Y (Yellow), M (Magenta), or C (Cyan) has
reached the end of its life.
Remedy Press [Online]. Although you can continue to print, the print quality may
deteriorate. Replace the drum cartridge with a new one. If the printer is not
online after replacing the drum cartridge, press [Online]. (See "Replacing Drum
Cartridges," on p. 6-15)
<EM SERVER ERROR>
Cause The printer could not connect to the POP3/SMTP server when printing
e-mails, or the settings for the POP3/SMTP server are not correct.
Remedy Check the error in detail using the Remote UI or N/W Status Print. (See "When
E-mail Print Fails," on p. 2-45)
<EM E-MAIL ERROR>
Cause The printer could not connect to the POP3 server because an error had
occurred in its hard disk.
Remedy Clear the hard disk error on the POP3 server.
<F9-nn PWR OFF>ON> ("nn" represents two-digit alphanumeric characters)
Cause A problem has occurred while the printer is processing print data.
Remedy Cycle the power of the printer. If the message appears even after cycling the
power of the printer, note down the message in the display, and contact your
local authorized Canon dealer.
<FF FONT FULL>
Cause Because of too many fonts to be registered, the field (font table) for
registering font information has run out and overflowed.
Remedy The printer continues printing by pressing [Online]. However, the page with
which an error has occurred is not printed properly.
<FM SIZE ERROR>
Cause There is some font with its size exceeds the pseudo-scalable font size.
Remedy Perform "Error Skip", then continue printing. However, the characters with which
an error has occurred are not printed properly.
<Auto Error Skip>
(Warning Message)
(Warning Message)
<Auto Error Skip>
<Auto Error Skip>
Message List 7-43
7