Konica Minolta magicolor 4750EN User Manual

Solving Problems with Media Misfeeds 9-24
Media is 
misfeeding.The media is not cor-
rectly positioned in 
the tray.Remove the misfed media and reposi-
tion the media properly in the tray.
The number of sheets 
in the tray exceeds 
the maximum 
allowed.Remove the excess media and reload 
the correct number of sheets in the 
tray. 
The media guides are 
not correctly adjusted 
to the media size.Adjust the media guides in the tray to 
match the size of the media.
Warped or wrinkled 
media is loaded in the...

Solving Other Problems9-25
Solving Other Problems
For details on consumables, access www.q-shop.com.
Symptom Cause Solution
Printer 
power is not 
on.The power cord is not 
correctly plugged into 
the outlet.Turn off the printer, confirm that the 
power cord is correctly plugged into the 
outlet, and then turn on the printer.
Something is wrong 
with the outlet con-
nected to the printer.Plug another electrical appliance into 
the outlet and see whether it operates 
properly.
The power switch is 
not...

Solving Other Problems 9-26
Printing from 
a USB mem-
ory device is 
not possible.The file format (file 
extension) is not one 
that can be printed.Only files with the format (extension) 
for JPEG, TIFF, XPS or PDF can be 
printed.
MEMORY DIRECT 
for the printer is set to 
DISABLE.Change the setting for 
INTERFACE 
MENU/MEMORY DIRECT
 to 
ENABLE.
A public user is not 
specified for user 
authentication.Contact the printer administrator.
Encrypted USB mem-
ory devices are used.Encrypted USB memory devices...

Solving Other Problems9-27
Not all pages 
print.The printer has the 
wrong kind of cable, 
or the printer is not 
configured for the 
correct cable and 
port.Check your cable.
The Cancel key was 
pressed.Make sure no one pressed the Cancel 
key while your job was printing.
The tray is empty. Check that the trays are loaded with 
media, in place, and secure.
A document is printed 
with an overlay file 
which has been cre-
ated by an unsuit-
able driver.Print the overlay file using a suitable 
driver....

Solving Other Problems 9-28
You are 
experienc-
ing duplex 
(double- 
sided) prob-
lems. 
(magicolor 
4750DN 
only)Media or settings are 
not correct.Make sure that you are using correct 
media. 
„See “Media Specifications” on 
page 6-2. 
„Do not duplex (double-sided) enve-
lopes, labels, letterhead, postcards, 
glossy or single side only paper. 
„Make sure that you have not mixed 
media types in Tray 1 or 2.
Make sure that your document has 
more than one page.
Make sure that magicolor 4750DN is...

Solving Other Problems9-29
Media is 
wrinkled.The media is moist 
from humidity or hav-
ing water spilled on it. Remove the moist media and replace it 
with new, dry media. 
The transfer roller or 
fuser unit is defective.Check them for damage. If necessary, 
contact Technical Support with the 
error information.
Unsupported media 
(wrong size, thick-
ness, type, etc.) is 
being used.Use KONICA MINOLTA-approved 
media. See “Media Specifications” on 
page 6-2.
The date and 
time is not 
correctly...

Solving Problems with Printing Quality 9-30
Solving Problems with Printing Quality
Symptom Cause Solution
Nothing is 
printed, or 
there are 
blank spots 
on the 
printed page.One or more of the 
imaging units may be 
defective.Remove the imaging units and check it 
for damage. If it is damaged, replace it. 
The media is moist 
from humidity.Adjust the humidity for media storage. 
Remove the moist media and replace it 
with new, dry media.
The media set in the 
printer driver mis-
matches the media...

Solving Problems with Printing Quality9-31
Image is too 
light; there is 
low image 
density.Laser lens is dirty. Clean the laser lens.
The media is moist 
from humidity.Remove the moist media and replace it 
with new, dry media.
There is not much 
toner left in the car-
tridge.Replace the toner cartridge.
One or more of the 
imaging units may be 
defective.Remove the imaging units and check 
them for damage. If one is damaged, 
replace it.
The media type is set 
incorrectly.When printing envelopes,...

Solving Problems with Printing Quality 9-32
The print or 
color density 
is uneven.One or more of the 
toner cartridges may 
be defective or low.Remove the toner cartridges and 
check them for damage. If one is dam-
aged, replace it.
The printer is not 
level.Place the printer on a flat, hard, level 
surface.
Irregular 
print or mot-
tled image 
appears.The media is moist 
from humidity.Adjust the humidity in the media stor-
age area.
Remove the moist media and replace it 
with new, dry media....

Solving Problems with Printing Quality9-33
There are 
toner 
smudges or 
residual 
images.One or more of the 
imaging units may be 
defective or installed 
incorrectly.Remove the imaging units and check 
them for damage. If one is damaged, 
replace it.
There are 
toner 
smudges on 
the back side 
of the page 
(whether or 
not it has 
been 
duplexed).The media path is 
dirty with toner.Print several blank sheets and the 
excess toner should disappear.
One or more of the 
imaging units may be...