Operation Manual

324
11.MAINTENANCE
2.Simple Troubleshooting (Cont.)
11
Display does not change when buttons or icons are pressed
Functions cannot be set
Image density is too low
Image density is too high
Item to be checked Countermeasure Reference page
Is the equipment in the energy
saving mode (Automatic energy
saving mode)?
Press the [ENERGY SAVER] or
[START] button on the control
panel to clear the mode. (It
takes a while for the equipment
to become ready.)
 P.35 “3.Energy Saving Mode”
Is the power OFF because the
weekly timer functions?
Press the [START] button to
return the power ON.
See the [User Function Guide]
Is the department code keyed
in?
Key in the correct department
code.
 P.31 “When controlling use of
equipment with department codes”
Is the “Warming up” message
displayed?
Wait until the equipment
becomes ready.
 P.31 “Turning power on”
Item to be checked Countermeasure Reference page
Are there functions that cannot
be combined set together?
See the copying function combi-
nation and image quality adjust-
ment combination matrices and
set again.
 P.335 “4.Copying Function
Combination Matrix”
Item to be checked Countermeasure Reference page
Has the message “Install new
toner cartridge” appeared on the
screen?
Replace the toner cartridge.  P.270 “Toner cover symbol”
Is the image density or back-
ground adjustment set lighter
than standard?
Use the manual density buttons
or the background adjustment
function to adjust the image
density properly.
 P.112 “6.Copy Density Adjust-
ment”,  P.116 “1.Background
Adjustment”
Item to be checked Countermeasure Reference page
Is the image density or back-
ground adjustment set darker
than standard?
Use the manual density buttons
or the background adjustment
function to adjust the image
density properly.
 P.112 “6.Copy Density Adjust-
ment”,  P.116 “1.Background
Adjustment”