Canon LBP3460 User Manual page 234

Cause 2 When printing after the paper is changed from narrower one to wider one, the
printer cools down the fixing unit so that the print quality is maintained.
Remedy Please wait a moment. The printer cools down the fixing unit automatically. If
the message appeared during printing, it resumes the job after finishing the cool
down process. If the message appeared after the job, the message disappears
and the printer stops operation after the cool down process, and the printer
becomes ready to print.
<OF OPT.CONN.ERR.>
Cause 1 The optional paper feeder is not installed properly.
Remedy Turn the power OFF, install the paper feeder properly, and then turn it ON again.
(See Getting Started Guide)
Cause 2 The optional paper feeder is installed or removed when the printer is ON.
Remedy Turn the power OFF, install or remove the paper feeder, then turn the printer ON
again. (See Getting Started Guide)
Cause 3 The connector of the optional paper feeder is disconnected.
Remedy Turn the printer OFF, unplug the power plug from the AC power outlet and
contact your local authorized Canon dealer.
Cause 4 A paper feeder that is not for this printer is installed.
Remedy Turn the power OFF, install the paper feeder for this printer, and then turn it ON
again. (See Getting Started Guide)
<11 NO "size" PAPER>
Cause Paper of the size specified in the application is not loaded in the paper source
(in all the paper sources when PAPER SOURCE is set to AUTO; in the specified
paper source when the setting is fixed).
Remedy 1 Refill or load paper.
Remedy 2 Press [Feeder Selection], then select other paper source for the same paper
size or larger paper size. (See "Selecting a Paper Source," on p. 3-12)
<12 COVER OPEN>
Cause The front cover is open.
Remedy Close the front cover firmly. If the printer is not online, press [Online].
Message List 7-23
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