Canon printer imageCLASS MF3111 User Manual

Paper Feeding Problems9-13
Troubleshooting
9
Repeated paper jams occur.
Q Is the proper paper loaded?
A Check that the size, thickness and type of the paper you are using. (See Print 
Media Requirements, on p. 2-1.)
Q Is the proper paper loaded correctly?
A Be sure to fan the paper stack before loading it in the cassette. This keeps the 
sheets of paper from sticking together. 
Q Is the output tray free of obstructions?
A Do not place the delivered paper back on the output tray. (See Face Down 
Paper...

Copying Problems9-14
Troubleshooting
9
Copying Problems
The machine will not make a copy.
Q Is the cartridge installed correctly?
A Make sure the cartridge is installed correctly. (See the Set-Up Instructions.)
Q Is the sealing tape removed from the cartridge?
A Remove the sealing tape from the cartridge. (See the Set-Up Instructions.)
Q Is the cassette inserted completely into the machine?
A Insert the cassette as far as it will go. (See the Set-Up Instructions.)
Q Did you connect the power cord to the...

Print Quality Problems9-15
Troubleshooting
9
Print Quality Problems
The print quality is not what you expect; print is not clear, has missing dots or white streaks.
Q Are the size, thickness and type of the paper you are using within the 
specifications of the machine?
A Check that the paper you are using is supported by the specifications of the 
machine. (See Print Media Requirements, on p. 2-1.)
Q Is the cartridge installed correctly?
A Make sure the cartridge is installed correctly. (See the Set-Up...

Print Quality Problems9-16
Troubleshooting
9
Copies are too dark or too light.
Q Is the exposure adjusted correctly?
A Adjust the exposure correctly using [Exposure]. (See Adjusting the Exposure 
(Density), on p. 5-5.)
Q Is the machine in the toner saver mode?
A Set  to  in  of the 
Menu. (See  of Menu Descriptions, on p. 10-2.)
The printouts are partly missing or shaded when you make copies on heavy paper.
Q Is the paper type set correctly?
A Select  or  in  in 
 of the Menu. (See Specifying the Paper...

Printing Problems9-17
Troubleshooting
9
Printing Problems
The Alarm indicator comes on.
Q Does the machine feed paper correctly, or is there paper in the cassette or 
multi-purpose feeder?
A Clear the paper jam, or load paper in the cassette or multi-purpose feeder. (For 
instructions on clearing paper jam, see Clearing Jams, on p. 9-1. For 
instructions on loading paper, see Loading Paper, on p. 2-4.)
A If the machine has no paper jam, or paper is loaded in the cassette or 
multi-purpose feeder, unplug...

Scanning Problems9-18
Troubleshooting
9
Scanning Problems
The machine will not scan a document.
Q Did you connect the power cord to the machine just now?
A Wait for a while. After connecting the power cord, the machine cannot scan 
documents immediately. 
Q Is the USB cable connected securely?
A Check that the USB cable is connected securely to the machine and your 
computer. Disconnect the USB cable, and reconnect it correctly after a while.
Scanned images are dirty.
Q Is the platen glass or the platen...

General Problems9-19
Troubleshooting
9
General Problems
The machine has no power.
Q Is the power cord plugged in securely?
A Check that the power cord is plugged securely into the machine and into the 
wall outlet. Insert the power cord straight into the power socket on the back of 
the machine. Do not insert it at an angle. Otherwise, the machine may not be 
properly connected to the power source and may not turn on. If this happens, 
disconnect the power cord, and reconnect it correctly after a minute...

If You Cannot Solve the Problem9-20
Troubleshooting
9
If You Cannot Solve the Problem
If you have a problem with your machine and you cannot solve it by referring to the 
information in this chapter, contact Canon Authorized Service Facilities or the 
Canon Customer Care Center.
CAUTION
If the machine makes strange noises, emits smoke or strange smells, unplug 
the power cord immediately, and then contact Canon Authorized Service 
Facilities or the Canon Customer Care Center. Do not attempt to...

CHAPTER
Accessing the Machine Settings10-1
10Machine Settings
This chapter explains how to adjust machine settings. The list of all the settings is also 
provided for your reference.
Accessing the Machine Settings
1Press [Menu].
2Press [ (-)] or [ (+)] to select the menu you want to change ➞ 
press [Set].
You have now accessed the settings in the list.
3Press [ (-)] or [ (+)] to select the sub menu you want to change ➞ 
press [Set].
NOTE
•For details on sub menus, see Menu Descriptions, on p. 10-2.
•If...

Menu Descriptions10-2
Machine Settings
10
Menu Descriptions
PAPER SETTINGS
(The factory default setting is in bold face.)
COMMON SETTINGS
NameDescriptions
1. PAPER SETTINGS Sets the paper size and paper type.
1. CASSETTE
1. PAPER SIZE Selects the paper size for the paper cassette. 
LT R, LGL, A4, B5, A5, EXECUTIV 
2. PAPER TYPE Selects the paper type to be used in the paper 
cassette.
PLAIN PAPER, PLAIN PAPER L, HEAVY PAPER, 
HEAVY PAPER H, TRANSPARENCY
2. MP TRAY
1. PAPER SIZE Selects the paper size for...