Oki ES6405 User manual

User’s Guide
ES6405
46624201EE my.okidata.com

2– ES6405 User’s Guide
Copyright Information
Copyright © 2017 by Oki Data. All Rights Reserved
ES6405 User’s Guide
P/N 46624201EE, Revision 1
3, 2017
Disclaimer
Every effort has been made to ensure that the information in this
document is complete, accurate, and up-to-date. The
manufacturer assumes no responsibility for the results of errors
beyond its control. The manufacturer also cannot guarantee that
changes in software and equipment made by other manufacturers
and referred to in this guide will not affect the applicability of the
information in it. Mention of software products manufactured by
other companies does not necessarily constitute endorsement by
the manufacturer.
While all reasonable efforts have been made to make this
document as accurate and helpful as possible, we make no
warranty of any kind, expressed or implied, as to the accuracy or
completeness of the information contained herein.
The most up-to-date drivers and manuals are available from the
web site:
http://www.oki.com/printing/
Trademark Information
Oki and Oki Data are registered trademarks of Oki Electric Industry
Company Ltd.
Hewlett-Packard, HP, and LaserJet are registered trademarks of
Hewlett-Packard Company.
Microsoft, MS-DOS and Windows are either registered trademarks
or trademarks of Microsoft Corporation in the United States and/
or other countries.
Other product names and brand names are registered trademarks
or trademarks of their proprietors.

3– ES6405 User’s Guide
Emergency first aid
Take care with toner powder:
If swallowed, give small amounts of cold water and seek
medical attention. DO NOT attempt to induce vomiting.
If inhaled, move the person to an open area for fresh air.
Seek medical attention.
If it gets into the eyes, flush with large amounts of water
for at least 15 minutes keeping eyelids open. Seek medical
attention.
Spillages should be treated with cold water and soap to
help reduce risk of staining skin or clothing.
Note:
Images used in this manual may include optional
features that your product does not have installed.

4– ES6405 User’s Guide
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Printer Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
ES6405 Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
ES6405 Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Changing the display language . . . . . . . . . . . . . . . . . . . . . . . 10
Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Power saving mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Paper Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Tray 1 and Optional Trays 2 and 3 . . . . . . . . . . . . . . . . . . . . 12
Media sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Media Weight Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Multi purpose tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Face down stacker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Face up stacker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Duplex unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Loading paper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Tray 1 and Optional Trays 2 and 3 . . . . . . . . . . . . . . . . . . . . 14
Multi-Purpose Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Menu functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Operator Panel: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
How to Change the Settings: User . . . . . . . . . . . . . . . . . . . . 22
How to Change the Settings: Administrator . . . . . . . . . . . . . . 23
Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Print Information Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Shutdown Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Print Secure Job Menu . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Menus Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Admin Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Boot Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
USB Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Security Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Storage Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Power Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Language Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Print Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

5– ES6405 User’s Guide
Contents
Available Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Duplex (two-sided printing) Unit . . . . . . . . . . . . . . . . . . . . . . 59
Additional RAM Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
SD Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Additional Paper Tray(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Major Printer Components and Paper Path . . . . . . . . . . . . . 62
Paper Sensor Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Clearing Paper Jams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Replacing Consumables and Maintenance Items. . . . . . . . . . . .75
Order Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Toner Cartridge Replacement . . . . . . . . . . . . . . . . . . . . . . . 76
Image Drum Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Replacing the Transfer Belt Unit . . . . . . . . . . . . . . . . . . . . . . 88
Fuser Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Cleaning the LED Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Utilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
Summary of Utilities Provided. . . . . . . . . . . . . . . . . . . . . . . . 97
Utilities on the CD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Utilities on the Web . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Installing the Utilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99

6– ES6405 User’s Guide
Notes, Cautions and Warnings
Note:
A note appears in this manual like this. A note provides
additional information to supplement the main text
which may help you to use and understand the product.
CAUTION!
A caution appears in this manual like this. A caution
provides additional information which, if ignored, may
result in equipment malfunction or damage.
WARNING!
A warning appears in this manual like this. A warning
provides additional information which, if ignored, may
result in a risk of personal injury.

7– ES6405 User’s Guide
Introduction
Your printer includes these features:
• High Definition Color (HD Color), multi-level technology
produces more subtle tones and smoother gradations of color
to lend photographic quality to your documents;
• 600 x 600, 600 x 1200 dpi (dots per inch) and High Definition
Color (HD Color) print resolution for high quality image
production showing the finest detail;
• Internet Protocol version 6 (IPv6);
• Single Pass color Digital LED technology for high speed
processing of your printed pages;
• PCL 5C, PCL 6 and Epson FX emulations for industry standard
operation and wide compatibility with most computer software;
• 10Base-T and 100Base-TX network connection lets you share
this valuable resource among users on your office network;
Additionally, the following optional features are also available:
• Automatic two-sided (duplex) printing for economical use of
paper and compact printing of larger documents (standard on
dn models);
• Additional paper tray for loading a further 530 sheets to
minimize operator intervention, or different paper stocks for
letterhead stationery, alternative paper sizes or other print
media;
• Additional memory allows printing of more complex pages. For
example, high resolution banner printing;
• SD card for storage of overlays, macros and downloadable
fonts, and automatic collation of multiple copies of multipage
documents.

8– ES6405 User’s Guide
Printer Overview ________________
ES6405 Front View
*The display language can be changed to show different languages.
(see “Changing the display language” on page 10).
1. Output stacker, face down
Standard printed copy delivery
point. Holds up to 250 sheets at
80 g/m².
2. Operator panel
Menu driven operator controls and
LCD* panel.
3. Paper tray
Standard paper tray. Holds up to
300 sheets of 80 g/m² paper.
4. Multi purpose tray
Used for feeding heavier paper
stocks, envelopes and other
special media. Also for manual
feeding of single sheets when
required.
5. Paper level indicator
6. Front cover release lever
7. Multi-purpose tray release
recess
8. Top cover release button
9. LED heads
10. Fuser release levers
11. Toner cartridges (C,M,Y,K)
12. ID units (C,M,Y,K)
13. Duplex unit (when fitted)
1
2
3
4
5
9
10
11
6
12
13
7
7
13
8

9– ES6405 User’s Guide
ES6405 Rear View
This view shows the connection panel, the rear output stacker and
the location of the optional duplex (two-sided printing) unit.
* The Network Interface may have a protective “plug” which must be
removed before connection can be made.
When the rear paper stacker is folded down paper exits the printer
through the rear of the printer and is stacked here face up. This is
mainly used for heavy print media. When used in conjunction with
the multi purpose feed tray, the paper path through the printer is
essentially straight. This avoids bending the paper around curves
in the paper path and enables feeding of up to 67 lb. US Bond
(250 g/m²) media.
1. ON/OFF switch
2. AC power socket
3. Duplex unit (when fitted)
4. Rear, face up stacker
5. USB interface
6. ACC interface (host
USB)
7. Network interface*
UPDATE IMAGE
1
2
3
4
5
6
7

10 – ES6405 User’s Guide
Changing the display language _____
The default language used by your printer for display messages
and for report printing is English. If required, this can be changed
to:
•Spanish
•Portuguese
Getting Started _________________
Power saving mode
If you do not use the machine for a while, it will enter the power
saving mode to control the power consumption of the device. To
cancel or initiate power saving mode, press the Power Save/
Wake Up button on the control panel.
Switching off
1. Press the Enter button on the control panel to enter the
menu.
2. Press the Menu down button and scroll to the Shutdown
menu.
3. Press the Enter button.
4. Press the Enter button to continue.
5. Press the Enter button to execute.
6. At the prompt, turn the power switch OFF.
Note:
If your machine is connected locally (via USB), when it
transitions to Sleep mode its status is viewed as off-line. To
use the printer in this state, you must press the Power
Save / Wake Up button to exit sleep mode.
CAUTION!
If you have an SD card fitted, always follow the
correct shutdown procedure to ensure that no data is
lost.

11 – ES6405 User’s Guide
Paper Recommendations
Your printer will handle a variety of print media, including a range
of paper weights and sizes, transparencies and envelopes. This
section provides general advice on choice of media, and explains
how to use each type.
The best performance will be obtained when using standard 20 lb.
US Bond (75 g/m²) paper designed for use in copiers and laser
printers.
Use of heavily embossed or very rough textured paper is not
recommended.
Pre-printed stationery can be used, but the ink must not offset
when exposed to the high fuser temperatures used in the printing
process.
Envelopes
Labels
Recommended type is Avery White Label types 7162, 7664, 7666
(A4), or 5161 (Letter).
CAUTION!
Envelopes should be free from twist, curl or other
deformations. They should also be of the rectangular
flap type, with glue that remains intact when
subjected to hot roll pressure fusing used in this type
of printer. Window envelopes are not suitable.
CAUTION!
Labels should also be of the type recommended for
use in copiers and laser printers, in which the base
carrier page is entirely covered by labels. Other types
of label stock may damage the printer due to the
labels peeling off during the printing process.

12 – ES6405 User’s Guide
Tray 1 and Optional Trays 2 and 3___
Media sizes
Media Weight Settings
If you have identical paper stock loaded in another tray (2nd or 3rd
tray if you have one, or multi purpose tray) you can set the printer
to automatically switch to the other tray when the current tray
runs out of paper. When printing from Windows applications, this
function is enabled in the driver settings. When printing from other
systems, this function is enabled in the Print Menu. (See “Menu
functions” on page 20.)
SIZE DIMENSIONS
Letter 8.5 x 11 inches
Legal 13 8.5 x 13 inches
Legal 13.5 8.5 x 13.5 inches
Legal 14 8.5 x 14 inches
Executive 7.25 x 10.5 inches
A5 148 x 210 mm
B5 182 x 257 mm
A4 210 x 297 mm
A6 105 x 148 mm
PAPER TYPE WEIGHT (US BOND) WEIGHT (g/m²)
Light 16-17 lb. US Bond 60 - 63 g/m2
Medium Light 18 lb. US Bond 64 - 74 g/m2
Medium 20-24 lb. US Bond 75 - 89 g/m2
Medium Heavy 24-28 lb. US Bond 90 - 104 g/m2
Heavy 28-32 lb. US Bond 105 - 120 g/m2
Ultra Heavy 1 32-50 lb. US Bond 121 - 188 g/m2
Ultra Heavy 2 50-59 lb. US Bond 189 - 220 g/m2
Ultra Heavy 3 59-67 lb. US Bond 221 - 250 g/m2

13 – ES6405 User’s Guide
Multi purpose tray _______________
The multi purpose tray can handle the same sizes as trays 1, 2 and
3 but in weights up to 67 lb. US Bond (250 g/m²). For very heavy
paper stock use the face up (rear) paper stacker. This ensures that
the paper path through the printer is almost straight.
The multi purpose tray can feed paper widths from 3 inches
(76 mm) to 8.5 inches (215.9 mm) and lengths from 5 inches
(127 mm) to 52 inches (1320 mm) (banner printing).
For paper lengths exceeding Legal 14-inch (356 mm) use paper
stock between 28 lb. US Bond (90 g/m²) and 32 lb. US Bond
(128 g/m²) and the face up (rear) paper stacker.
Use the multi purpose tray for printing on envelopes and
transparencies. Up to 50 sheets of transparencies or 10 envelopes
can be loaded at one time, subject to a maximum stacking depth
of about 3/8-inch (10 mm).
Face down stacker_______________
The face down stacker on the top of the printer can hold up to 250
sheets of 21 lb. US Bond (80 g/m²) standard paper, and can
handle paper stocks up to 50 lb. US Bond (188 g/m²).
Pages printed in reading order (page 1 first) will be sorted in
reading order (last page on top, facing down).
Face up stacker _________________
The face up stacker at the rear of the printer should be opened and
the tray extension pulled out when required for use. In this
condition paper will exit via this path, regardless of driver settings.
The face up stacker can hold up to 100 sheets of 21 lb. US Bond
(80 g/m²) standard paper, and can handle stocks up to 67 lb. US
Bond (250 g/m²).
Always use this stacker and the multi purpose feeder for paper
stocks heavier than 50 lb. US Bond (188 g/m²).
Duplex unit ____________________
This option provides automatic two-sided printing on the same
range of paper sizes as tray 2 (i.e., all cassette sizes except A6),
using paper stocks from:
• 17-32 lb. US Bond (64-120 g/m²)

14 – ES6405 User’s Guide
Loading paper
Tray 1 and Optional Trays 2 and 3___
1. Remove the paper tray from the printer.
2.
Fan the paper to be loaded at the edges (1) and in the
middle (2) to ensure that all sheets are properly separated,
then tap the edges of the stack on a flat surface to make it
flush again (3).
12
3

15 – ES6405 User’s Guide
3. Load paper (letter headed paper face down and top edge
towards the front of the printer), as shown.
a
b
b

16 – ES6405 User’s Guide
4. Adjust the rear stopper (a) and paper guides (b) to the size
of paper being used.
To prevent paper jams:
• Do not leave space between the paper and the guides and
rear stopper.
• Do not overfill the paper tray. Capacity depends on the
type of paper stock.
• Do not load damaged paper.
• Do not load paper of different sizes or types at the same
time.
• Close the paper tray gently.
• Do not pull the paper tray out during printing (except as
described below for the 2nd tray).
NOTES:
• If you have two trays and you are printing from the 1st
(upper) tray, you can pull out the 2nd (lower) tray during
printing to reload it. However, if you are printing from the
2nd (lower) tray, do not pull out the 1st (upper) tray. This
will cause a paper jam.
• For face down printing, make sure the face up (rear)
stacker (a) is closed (the paper exits from the top of the
printer). Stacking capacity is approximately 250 sheets,
depending on paper weight.
• For face up printing, make sure the face up (rear)
stacker (a) is open and the paper support (b) is extended.
Paper is stacked in reverse order and tray capacity is
approximately 100 sheets of 20-lb. US Bond (75 g/m2)
paper.

17 – ES6405 User’s Guide
• Always use the face up (rear) Stacker for heavy paper
(card stock, etc.).
CAUTION!
Do not open or close the rear paper exit while printing
as it may result in a paper jam.
a
b

18 – ES6405 User’s Guide
Multi-Purpose Tray ________________________
1. Open the multi purpose tray (a).
2. Fold out the paper supports (b).
3. Press gently down on the paper platform (c) to ensure it is
latched down.
a
d
c
b
d

19 – ES6405 User’s Guide
4. Load the paper and adjust the paper guides (d) to the size of
paper being used.
• For single-sided printing on letterhead paper load the
paper into the multi purpose tray with pre-printed side up
and top edge into the printer.
• For two-sided (duplex) printing on letterhead paper load
the paper with pre-printed side down and top edge away
from the printer. (Optional duplex unit must be installed for
this function.)
• Envelopes should be loaded face up with top edge to the
left and short edge into the printer. Do not select duplex
printing on envelopes.
• Do not exceed the paper capacity of about 100 sheets or
10 envelopes. Maximum stacking depth is 3/8-inch
(10 mm).
5. Press the tray latch button inwards to release the paper
platform, so that the paper is lifted and gripped in place.
6. Set the correct paper size for the multi purpose tray in the
Media Menu (see “Menu functions” on page 20).

20 – ES6405 User’s Guide
Menu functions
This section lists the menus accessed via the controls on the
printer’s operator panel and displayed in the LCD window.
Operator Panel: _________________
1. Ready
LED ON: Ready to
receive data.
BLINKING:
Processing data.
OFF: Offline.
2. Display Displays the printer
status and any error
messages.
3. Menu
Scroll
Buttons
Enters the Menu
mode. In Menu
mode, forwards
or reverses the
menu item
displayed.
Press for 2 secs.
or longer to jump
from top to
bottom.
4. On Line
Button Switches between
ONLINE and
OFFLINE.
Exits the menu and
goes ONLINE when
pressed in the Menu
mode.
Scrolls the HELP
screen.
Forces printing on
the paper currently
loaded when
pressed with
“WRONG PAPER” or
“WRONG PAPER
SIZE” displayed.
23
1
7
4
865
10
9