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 
tray.Remove the media, smooth it out, and 
reload it. If it still misfeeds, do not use 
that media.
The media is moist 
from humidity.Remove the moist media and replace it 
with new, dry media. 
Envelopes are loaded 
in Tray 2, 3.Envelope must be loaded in Tray 1 
only.
Labels, letterhead, 
postcards, thick 
stock, or glossy are 
loaded in Tray 3.Labels, letterhead, postcards, thick 
stock, or glossy must be loaded in Tray 
1 or 2.
Custom-sized media 
is loaded in Tray 3.Custom-sized media can be loaded in 
Tray 1 or 2.
See “Media Specifications” on 
page 6-2.
The recommended 
label sheet is facing 
the wrong way in Tray 
1 or 2.Load the label sheets according to the 
manufacturer’s instructions.
Envelopes are facing 
the wrong way in 
Tray 1.Load the envelopes in Tray 1 so the 
flaps are facing up.
Media is 
misfeeding.Unsupported media 
(wrong size, thick-
ness, type, etc.) is 
being used.Use KONICA MINOLTA-approved 
media.
See “Media Specifications” on 
page 6-2.
The media roller is 
dirty.Clean the media supply roller.
For more details, refer to “Media Roll-
ers” on page 8-5.  Symptom Cause Solution
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							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 correctly turned 
on (I position).Turn the power switch off (O position), 
then turn it back to the on (I position). 
The printer is con-
nected to an outlet 
with a voltage or fre-
quency that does not 
match the printer 
specifications.Use a power source with the specifica-
tions listed in appendix A, “Technical 
Specifications.”
Data was 
sent to the 
printer, but it 
doesn’t print.An error message is 
displayed in the mes-
sage window.Handle according to the message dis-
played.
A job may be can-
celled if user authen-
tication or account 
track settings are 
specified.Click the User Authentication/Account 
Track button in the printer driver, and 
then type in the necessary information 
before printing.
The control 
panel dis-
plays 
TONER 
LOW
 much 
sooner than 
expected.One of the cartridges 
may be defective. Remove the toner cartridges and check 
them for damage. If one is damaged, 
replace it. 
You printed with 
heavy toner cover-
age.See the specifications in Appendix A.
You can’t 
print the con-
figuration 
page.The tray is empty. Check that at least Tray 1 is loaded 
with media, in place, and secure.
There is a media 
misfeed.Clear the media misfeed.
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							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 are 
not supported.
Printing 
takes too 
much time.The printer is set to a 
slow printing mode 
(for example thick 
stock).It takes more time to print on special 
media. When using regular paper, 
make sure that the media type is set 
properly in the driver.
The printer is set to 
Energy Saver mode.It takes time for printing to start in 
Energy Saver mode.
The job is very com-
plex.Wait. No action needed.
The printer memory is 
insufficient.Add more memory.
A toner cartridge for a 
different region or an 
unapproved genuine 
toner cartridge is 
installed (
INCOR-
RECT TONER X
 is 
displayed in the mes-
sage window).Install a correct KONICA MINOLTA 
toner cartridge approved for your spe-
cific printer.
Blank pages 
come out 
during print-
ing.One or more of the 
toner cartridges are 
defective or empty.Check the toner cartridges. The image 
will not print if one or more cartridges 
are empty.
The wrong media is 
being used.Check that the media type set in the 
driver matches the media loaded in the 
printer. Symptom Cause Solution
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							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.
Printer 
resets or 
turns off fre-
quently.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.
A system error 
occurred.Contact Technical Support with the 
error information.
The 
message 
PORT AUTH 
ACTIVE 
remains 
displayed in 
the message 
window.IEEE 802.1X 
authentication failed.Change the setting for INTERFACE 
MENU/ETHERNET/IEEE802.1X/
ENABLE to NO, and then check all 
settings concerning IEEE 802.1X. Symptom Cause Solution
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							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 
selected in the Model box under 
Device Options of the Windows 
printer driver (Properties/Configure 
tab).
In the Windows printer driver (Layout/
Print Type), choose “Double-Sided.”
For N-up on duplexed pages, choose 
Collate only in the Windows driver’s 
Basic Tab. Do not set collation in the 
application.
With N-up on 
multiple cop-
ies, the out-
put is 
incorrect.Both the driver and 
the application have 
been set for collation.For N-up on multiple copies, choose 
Collate only in the Windows driver’s 
Basic Tab. Do not set collation in the 
application.
You hear 
unusual 
noises.There is a foreign 
object stuck inside 
the printer.Turn off the printer and remove the 
object. If you cannot remove it, contact 
Technical Support. 
The 
web-based 
utility cannot 
be accessed.The PageScope Web 
Connection Adminis-
trator’s password is 
incorrect.The PageScope Web Connection 
Administrator password has a 0-char-
acter minimum and a 16-character 
maximum. For details of the Page-
Scope Web Connection administrator 
password, refer to the Reference Guide 
on the Utilities and Documentation 
CD/DVD. Symptom Cause Solution
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							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 
maintained 
on the 
printer.The backup battery 
has reached the end 
of its life.Replace the backup battery. For 
details, see “Replacing the Backup Bat-
tery” on page 7-33.
The pages 
that were fed 
out were not 
uniformly 
loaded.There are large curls 
in the paper.Remove the paper from the paper tray, 
turn it over, and then load it again.
There are gaps 
between the media 
guides of the paper 
tray and the sides of 
the paper.Slide the media guides of the paper 
tray against the sides of the paper so 
that there are no gaps.
The hard 
disk was 
automatically 
formatted.The hard disk was 
full.When the control panel displays HDD 
NEAR FULL, delete print jobs and 
resources (fonts, forms, etc.) which 
were saved on the hard disk using 
Download Manager or PageScope 
Web Connection.
The Com-
pactFlash 
card was 
automati-
cally format-
ted.The CompactFlash 
card was full.When the control panel displays MEM-
ORY CARD NEAR FULL, delete 
resources (fonts, forms, etc.) which 
were saved on the memory card using 
Download Manager or PageScope 
Web Connection. Symptom Cause Solution
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							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 
loaded in the printer.Load the correct media in the printer.
The power source 
does not match the 
printer specifications.Use a power source with the proper 
specifications.
Several sheets are 
being fed at the same 
time.Remove the media from the tray and 
check it for static electricity. Fan plain 
paper or other media, and replace it in 
the tray.
Media is not set prop-
erly in the tray(s).Remove the media, tap it to straighten 
it out, return it to the tray, and realign 
the media guides.
Entire sheet 
is printed in 
black or 
color.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. 
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							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, labels, letter-
head, postcards, thick stock, glossy, 
single side only paper or special paper, 
specify the appropriate media type in 
the printer driver.
Image is too 
dark.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. 
Image is 
blurred; 
background 
is lightly 
stained; 
there is 
insufficient 
gloss of the 
printed 
image.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. Symptom Cause Solution
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							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.
Unsupported media 
(wrong size, thick-
ness, type, etc.) is 
being used.Use KONICA MINOLTA-approved 
media. See “Media Specifications” on 
page 6-2.
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.
There is 
insufficient 
fusing or the 
image 
comes off 
when 
rubbed.The media is moist 
from humidity.Remove the moist media and replace it 
with new, dry media. 
Unsupported media 
(wrong size, thick-
ness, type, etc.) is 
being used.Use KONICA MINOLTA-approved 
media. See “Media Specifications” on 
page 6-2.
Media type is set 
incorrectly.When printing envelopes, labels, letter-
head, postcards, thick stock, glossy, 
single side only paper or special paper, 
specify the appropriate media type in 
the printer driver. Symptom Cause Solution
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							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 
defective.Remove the imaging units and check it 
for damage. If it is damaged, replace it.
Abnormal 
areas (white, 
black, or 
color) appear 
in a regular 
pattern.The laser lens is dirty. Clean the laser lens.
A imaging unit may 
be defective.Remove the imaging unit with the color 
causing the abnormal image. Replace 
it with a new imaging unit. Symptom Cause Solution
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