7-1
7 Troubleshooting
If Trouble Occurs
If trouble occurs with this machine, carry out the items indicated below. If the trouble persists, 
contact your service representative.
Symptom Items to check Corrective procedure  Reference 
page
Nothing is displayed on the 
operation panel when the 
main power switch is 
turned on.
Is the power plug connected to an AC 
outlet?
Connect the plug to an AC outlet. 3-1
No copies come out when 
the Start key is pressed.
Is there any indication of the trouble on 
the operation panel?
Check the appropriate measures 
against that indication and carry out the 
corresponding procedure.
7-4
The copies come out 
blank.
Were the originals set correctly? When setting originals on the platen, 
set them face-down along the original 
size indicator plates.
3-1
When setting originals in the optional 
document processor, set them face-up.
2-11
The copies come out too 
light.
Is the auto density adjustment mode 
set?
To adjust the overall density level, 
perform the auto density adjustment 
procedure.
-
Is the manual density mode set? Use the Lighter key or the Darker key 
to adjust the density level properly.
3-2
To adjust the overall density, perform 
the relevant density adjustment 
procedure in each image quality mode.
-
Is the toner evenly distributed in the 
toner container?
Shake the toner container horizontally 
approximately 10 times.
6-5
Is the EcoPrint mode set? Do not set the EcoPrint mode. -
Is Adding Toner requested? Replace the toner container. 6-5
Is the copy paper wet? Replace the copy paper with new paper. 2-1
Is the electrical charge section dirty? Open the front cover and use the 
charger cleaner rod to clean the 
electrical charge section.
6-7
The copies come out too 
dark.
Is the auto density adjustment mode 
set?
To adjust the overall density level, 
perform the auto density adjustment 
procedure.
-
Is the manual density mode set? Use the Lighter key or the Darker key 
to adjust the density level properly.
3-2
To adjust the overall density, perform 
the relevant density adjustment 
procedure in each image quality mode.
-