Canon ImageCLASS MF4570DN - Manual (Page 150)

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Tr
oubleshooting
The Overall Print Result Is Dark
Perform one of the following solutions according to the cause.
The copy density is not properly set.
Solution
Adjust the or lower from the operation panel.
“Adjusting the Density” (P.3-4)
e-Manual Copy Adjusting the Density Finely Adjusting the Density
The machine is exposed to direct sunlight or strong light
Solution
Move the machine.
e-Manual Maintenance Transporting the Machine
Printed Bar Codes Cannot Be Scanned
Perform one of the following solutions according to the cause.
When printing a bar code with the default printing preferences, the bar code may not be able to
be scanned.
Solution
Change the [Special Print Mode] setting to [Special Settings 1] from the print driver.
e-Manual Maintenance Special Mode
* When [Special Settings 1] is selected, printing density is lower than when [Off ] is selected. Also, text or lines may be
less clear.
Paper Jams Occur Frequently When Performing 2-Sided Printing (MF4570dn Only)
Perform one of the following solutions according to the cause.
Solution
Change the settings from the operation panel.
e-Manual Maintenance Special Mode
* Maintain this setting in normal conditions. Change the setting only when the problems mentioned above
occur.
* If you use this mode when you are not using thin paper, images may become white.