Canon MF4570dn Manuale Utente

9-18

oubleshooting

The Overall Print Result Is Dark

Perform one of the following solutions according to the cause.

<Cause 1> The copy density is not properly set.

Solution

Adjust the <Density> or <Correct Density> lower from the operation panel.

e-Manual

→ Copy → Adjusting the Density → Finely Adjusting the Density

<Cause 2> 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.

<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 <Special Mode I> settings from the operation panel.

e-Manual

→ Maintenance → Special Mode

* Maintain this setting <Off> 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.