Epson C3900 Manual

Symptom Cause Solution
Duplex  misfeeds. Unsupported media (wrong size,
thickness, type, etc.) is being
used.Use Epson-approved media. See “Print Media” on page 58.
Only plain paper, special paper and thick stock, 60–210 g/m2
(16–55.9 lb) can be autoduplexed. See “Print Media” on page
58.
Make sure that you have not mixed media types in Tray 1 or
2.
Do not duplex (double-sided) envelopes, labels, letterhead,
postcards, glossy or single side only paper.
Media is still being misfed. Recheck the media path...

Symptom Cause Solution
Media is
misfeeding.Unsupported media (wrong size,
thickness, type, etc.) is being
used.Use Epson-approved media.
See “Print Media” on page 58.
The media roller is dirty. Clean the media supply roller.
For more details, refer to “Media Rollers” on page 105.
Solving Other Problems
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...

Symptom Cause Solution
Printing from a
USB memory
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 memory devices
are used.Encrypted USB memory devices are not supported....

Symptom Cause Solution
Printer resets or
turns off
frequently.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...

Symptom Cause Solution
Media is wrinkled.
The media is moist from
humidity or having 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, thickness, type, etc.) is
being used.Use Epson-approved media. See “Print Media” on page 58.
The date and time
is not correctly
maintained on the
printer.The backup battery has...

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
photoconductor units may be
defective.Remove the photoconductor 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 mismatches the media
loaded in the printer.Load the correct media in...

Symptom Cause Solution
Image is too dark.
One or more of the
photoconductor units may be
defective.Remove the photoconductor 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
photoconductor units may be
defective.Remove the photoconductor units and check them for
damage. If one is damaged, replace it.
The print or color
density is uneven.
One or more of the toner
cartridges...

Symptom Cause Solution
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,
thickness, type, etc.) is being
used.Use Epson-approved media. See “Print Media” on page 58.
Media type is set incorrectly. When printing envelopes, labels, letterhead, postcards,
thick stock, glossy, single side only paper or special paper,
specify the appropriate media type in the printer...

Symptom Cause Solution
Image defects.
The laser lens is dirty. Clean the laser lens.
A toner cartridge may be leaking. Remove the toner cartridges and check them for damage. If
one is damaged, replace it.
A photoconductor unit may be
defective.Remove the photoconductor unit with the color causing the
abnormal image.
Replace it with a new photoconductor unit.
Lateral lines or
bands appear on
image.
The printer is not level. Place the printer on a flat, hard, level surface.
The media path is dirty with...

Status, Error, and Service Messages
Status, error, and service messages are displayed in the control panel message window. They provide
information about your printer and help you locate many problems. When the condition associated
with a displayed message has changed, the message is cleared from the window.
Standard Status Messages
This message... means... do this...
CALIBRATINGAfter replacing a toner cartridge or a
photoconductor unit, or after rebooting
your printer after environmental changes,
your...