No part of this publication may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, mechanical, photocopying, recording, or otherwise, without
the prior written permission of Seiko Epson Corporation. No patent liability is assumed with
respect to the use of the information contained herein. Neither is any liability assumed for
damages resulting from the use of the information contained herein.
Neither Seiko Epson Corporation nor its affiliates shall be liable to the purchaser of this
product or third parties for damages, losses, costs, or expenses incurred by purchaser or
third parties as a result of: accident, misuse, or abuse of this product or unauthorized
modifications, repairs, or alterations to this product, or (excluding the U.S.) failure to strictly
comply with Seiko Epson Corporation’s operating and maintenance instructions.
Seiko Epson Corporation and its affiliates shall not be liable against any damages or
problems arising from the use of any options or any consumable products other than those
designated as Original Epson Products or Epson Approved Products by Seiko Epson
Corporation.
Trademarks
IBM and PS/2 are registered trademarks of International Business Machines Corporation.
Microsoft
States of America and other countries.
Apple® and Macintosh® are registered trademarks of Apple Computer, Inc.
Adobe, the Adobe logo and PostScript3 are trademarks of Adobe Systems Incorporated,
which may be registered in certain jurisdictions.
HP and HP LaserJet are registered trademarks of the Hewlett-Packard Company.
PCL is the registered trademark of Hewlett-Packard Company.
Features Zoran Corporation Integrated Print System (IPS) for print language emulation.
EPSON and EPSON ESC/P are registered trademarks and EPSON AcuLaser and EPSON
ESC/P 2 are trademarks of Seiko Epson Corporation.
®
and Windows® are registered trademarks of Microsoft Corporation in the United
Copyright and Trademarks2
Coronet is a trademark of Ludlow Industries (UK) Ltd.
Marigold is a trademark of Arthur Baker and may be registered in some jurisdictions.
CG Times and CG Omega are trademarks of Agfa Monotype Corporation and may be
registered in certain jurisdictions.
Arial, Times New Roman and Albertus are trademarks of The Monotype Corporation and
may be registered in certain jurisdictions.
ITC Avant Garde Gothic, ITC Bookman, ITC Zapf Chancery and ITC Zapf Dingbats are
trademarks of International Typeface Corporation and may be registered in some
jurisdictions.
Antique Olive is a trademark of Fonderie Olive.
Helvetica, Palatino, Times, Univers, Clarendon, New Century Schoolbook, Miriam and
David are trademarks of Heidelberger Druckmaschinen AG which may be registered in
certain jurisdictions.
Wingdings is a trademark of Microsoft Corporation and may be registered in some
jurisdictions.
General Notice: Other product names used herein are for identification purposes only and
may be trademarks of their respective owners. Epson disclaims any and all rights in those
marks.
must be followed carefully to avoid bodily injury.
w
Cautions
must be observed to avoid damage to your equipment.
c
Notes
contain important information and useful tips on the operation of your product.
Safety precautions
Be sure to follow the precautions carefully to ensure safe, efficient operation:
❏ Because the product weighs approximately 33.1 kg (73 lb) for EPSON AcuLaser
CX21N/CX21NF, excluding consumable products, one person should not lift or carry it.
Two people should carry the product, lifting it by the correct positions as shown below.
Warnings
Be very careful when lifting the product as the rear side is heavier than the front.
w
Safety Instructions16
❏ Be careful not to touch the fuser, which is marked CAUTION HIGH TEMPERATURE,
or the surrounding areas. If the product has been in use, the fuser and the surrounding
areas may be very hot. If you must touch one of these areas, wait 30 minutes to allow
the heat to subside before doing so.
b
*
a
c
a
*
* CAUTION HIGH TEMPERATURE
a. fuser unit
b. cover B
c. cover C
❏ Do not insert your hand deep into the fuser unit as some components are sharp and
may cause injury.
❏ Avoid touching the components inside the product unless instructed to do so in this
guide.
Safety Instructions17
❏ Never force the product’s components into place. Although the product is designed to
be sturdy, rough handling can damage it.
❏ When handling a toner cartridge, always place them on a clean, smooth surface.
❏ Do not attempt to modify a toner cartridge or take them apart. They cannot be refilled.
❏ Do not touch the toner. Keep the toner away from your eyes.
❏ Do not dispose of used toner cartridge, photoconductor units, or fuser units in fire, as
they can explode and cause injury. Dispose of them according to local regulations.
❏ If toner is spilled, use a broom and dustpan or a damp cloth with soap and water to
clean it up. Because the fine particles can cause a fire or explosion if they come into
contact with a spark, do not use a vacuum cleaner.
❏ Wait at least one hour before using a toner cartridge after moving it from a cool to a
warm environment to prevent damage from condensation.
Important Safety Instructions
Read all of the following instructions before operating your product:
When choosing a place and power source for the product
❏ Place the product near an electrical outlet where you can easily plug in and unplug the
power cord.
❏ Do not place the product on an unstable surface.
❏ Do not put your product where the cord will be stepped on.
❏ Slots and openings in the cabinet and the back or bottom are provided for ventilation.
Do not block or cover them. Do not put the product on a bed, sofa, rug, or other similar
surface or in a built-in installation unless proper ventilation is provided.
❏ All interface connectors for this product are Non-LPS (non-limited power source).
❏ Connect your product to an electrical outlet that meets the power requirements of this
product. Your product’s power requirements are indicated on a label attached to the
product. If you are not sure of the power supply specifications in your area, contact your
local power company or consult your dealer.
❏ If you are unable to insert the AC plug into the electrical outlet, contact an electrician.
❏ Avoid using outlets that other appliances are plugged into.
Safety Instructions18
❏ Use the type of power source indicated on the label. If you are not sure of the type of
power available, consult your dealer or local power company.
❏ If you are unable to insert the plug into the outlet, contact a qualified electrician.
❏ When connecting this product to a computer or other device with a cable, ensure the
correct orientation of the connectors. Each connector has only one correct orientation.
Inserting a connector in the wrong orientation may damage both devices connected by
the cable.
❏ If you use an extension cord, make sure that the total of the ampere ratings on the
products plugged into the extension cord does not exceed the extension cord ampere
rating.
❏ Unplug this product from the wall outlet and refer servicing to a qualified service
representative under the following conditions:
A.When the power cord or plug is damaged or frayed.
B.If liquid has been spilled into it.
C.If it has been exposed to rain or water.
D.If it does not operate normally when the operating instructions are followed. Adjust only
those controls that are covered by the operating instructions since improper adjustment
of other controls may result in damage and will often require extensive work by a qualified
technician to restore the product to normal operation.
E.If it has been dropped or the cabinet has been damaged.
F.If it exhibits a distinct change in performance, indicating a need for service.
When using the product
❏ Follow all warnings and instructions marked on the product.
❏ Unplug this product from the wall outlet before cleaning.
❏ Use a well-wrung cloth for cleaning and do not use liquid or aerosol cleaners.
❏ Avoid touching the components inside the product unless instructed to do so in this
guide.
❏ Never force product components into place. Although the product is designed to be
sturdy, rough handling can damage it.
❏ Be sure to keep consumables out of the reach of children.
❏ Do not use product in a damp environment.
Safety Instructions19
❏ Do not leave jammed paper inside of the product. This can cause the product to
overheat.
❏ Never push objects of any kind through cabinet slots as they may touch dangerous
voltage points or short out parts that could result in a risk of fire or electric shock.
❏ Never spill liquid of any kind on the product.
❏ Except as specifically explained in the product’s documentation, do not attempt to
service this product yourself.
❏ Adjust only those controls that are covered by the operating instructions. Improper
adjustment of other controls may result in damage and may require repair by a qualified
service representative.
Safety Information
Power cord
Caution:
Be sure the AC power cord meets the relevant local safety standards.
c
Use only the power cord that comes with this product. Use of the another cord may result in
fire or electric shock.
This product’s power cord is for use with this product only. Use with other equipment may
result in fire or electric shock.
Laser safety labels
Warning:
The performance of procedures and adjustments other than those specified in the product's
w
documentation may result in hazardous radiation exposure.
Your product is a Class 1 laser product as defined in the IEC60825 specifications. The label
shown is attached to the back of the product in countries where required.
Internal laser radiation
Max. Average Radiation Power:5 mW at laser aperture
Safety Instructions20
Wavelength:770 to 795 nm
This is a Class III b Laser Diode Assembly that has an invisible laser beam. The printer
head unit is NOT A SERVICE ITEM, therefore, the printer head unit should not be opened
under any circumstances. An additional laser warning label is affixed to the inside of the
product.
Ozone safety
Ozone emission
Ozone gas is generated by laser printers as a by-product of the printing process. Ozone is
produced only when the printer is printing.
Ozone exposure limit
The recommended exposure limit for ozone is 0.1 parts per million (ppm) expressed as an
average time-weighted concentration over an eight (8) hour period.
The Epson laser printer generates less than 0.1 ppm for eight (8) hours of continuous
printing.
Minimize the risk
To minimize the risk of exposure to ozone, you should avoid the following conditions:
❏ Use of multiple laser printers in a confined area
❏ Operation in conditions of extremely low humidity
❏ Poor room ventilation
❏ Long, continuous printing together with any of the above
Product location
The product should be located so that the exhaust gases and heat generated are:
❏ Not blown directly into the user’s face
❏ Vented directly out of the building whenever possible
Safety Instructions21
Power on/off cautions
Do not turn off the product:
❏ After turning on the product, wait until Ready appears in the LCD panel.
❏ While the Print light is flashing.
❏ While the Data light is on or flashing.
❏ While printing.
Safety Instructions22
Chapter 1
Getting to Know Your Product
Where to Find Information
Where to Find Information
Setup Guide
Provides you with information on assembling the product and setting up the fax basic
settings.
User’s Guide (this manual)
Provides you with detailed information on the product’s functions, optional products,
maintenance, troubleshooting, and technical specifications.
Network Guide
Provides network administrators with information on both the printer driver and network
settings.You need to install this guide from the Network Utilities CD-ROM to your
computer’s hard disk before referring to it.
Basic Operation Guide
Provides you with solutions for paper jam problems about your product, and information on
the control panel, copy and fax operations you may need to refer to on a regular basis. We
recommend printing this guide and keeping it near the product.
Online Help for product software
Click Help for detailed information and instructions on the software that controls your
product. Online help is automatically installed when you have installed from the software
CD-ROM.
Note:
The illustrations in this guide are for EPSON AcuLaser CX21NF unless otherwise indicated.
Getting to Know Your Product23
Product Parts
Front view
a
l
k
j
i
h
a. Auto Document Feeder
b. stopper
c. output tray
d. extension tray
e. control panel
f.cover A
b
c
d
e
f
g
g. MP tray
h. power switch
i.option cover
j.cover B
k. cover C
l.ADF cover
Getting to Know Your Product24
Rear view
b
a
c
d
h
g
f
a. cover F
b. USB interface connector
c. telephone interface connectors (fax model only)
- LINE: Connects with the phone cord.
- EXT: Connects with an attached phone.
d. network interface connector
e. AC inlet
f.cover E
g. handle
h. cleaner cover
e
Getting to Know Your Product25
Inside the product
a
b
c
d
a. fuser unit
b. photoconductor unit access lever
c. photoconductor unit
d. cleaning knob access lever
e. toner cartridge
f.paper guides (MP tray)
Scanner parts
f
e
a
a. document cover
b
c
Getting to Know Your Product26
b. document table
c. transportation lock
Control panel
a. One Touch Dial button A, B, C
(fax model only)
b. Data light
(Yellow)
c. Error light
(Red)
d. LCD panelDisplays product status messages, guidance information, and
Use these buttons to transmit a fax to a registered fax number
assigned to the corresponding button. Available from any
mode.
Flashes when the product is processing data.
On or flashes when an error has occurred.
- On when an error has occurred that requires operator
intervention. The product will automatically recover when the
cause of the error is resolved.
- Flashing 1 (blinks at 0.3 second intervals)
Indicates an error has occurred that can be recovered by
pressing either the x B&W Start or x Color Start button.
- Flashing 2 (blinks at 0.6 second intervals)
Indicates an error has occurred that requires operator
intervention and the x B&W Start or x Color Start button to be
pressed after resolving the error.
various mode settings.
Getting to Know Your Product27
e. l Left/ r Right buttonUse these buttons to sequentially display previous or next setting
values. The r Right button is also used as the OK button to set
and register a setting item. Also, the l Left button can be used
to move the cursor one character left and overwrite mistakenly
entered data.
u Up/ d Down buttonUse these buttons to sequentially display previous or next menu
items. For instructions on how to use these buttons, see "Using the
Setup Menu" on page 238.
f. Advanced/Menu buttonUse this button to display the advanced menu for each mode.
g. Speed dial button
(fax model only)
h. Pause/Redial button
(fax model only)
i. x B&W Start button,
x Color Start button
j. y Cancel buttonUse this button to stop scanning operation, or cancel copy, fax
k. Numeric keypadUsed to enter the number of copies or a zoom value in Copy
l.Reset buttonUse this button to reset the selected setting item or mistakenly
Use this button to display a list of registered recipients in the LCD
panel.
Use this button to insert a pause into fax dialing, or redial to the
same fax number called previously.
Use these buttons to start a black-and-white or color copy,
scan, or fax transmission.
When the error light is flashing, pressing this button clears the
error and switches the product to ready status.
transmission and print job.
Pressing it once cancels the current job.
Pressing and holding it for more than three seconds in Print
mode deletes all print jobs from the product memory.
mode. Also, enters numeric values, such as the Time Setting
used in fax communications, in Setup mode.
hash and * asterisk buttons can be used in Fax mode.
entered values to the default value. Press and hold it for more
than three seconds to delete all setting items to their default
values. Also, used as a delete button to delete one character
from the entered data when entering a recipient fax number in
Fax mode.
m. Setup lightOn when the product is in Setup mode.
n.Setup buttonUse this button to switch to the Setup mode.
o. Mode buttonsUse these buttons to switch to the corresponding mode.
p. Mode lightsOn when the corresponding mode (Print, Copy, Fax, or Scan) is
selected. When the Print light is on, the product is in Print mode
and ready to receive and print data.
Getting to Know Your Product28
Options and Consumable Products
Options
You can add the following option to your product’s capabilities by installing it.
500-Sheet Paper Cassette Unit *C12C802181)
The 500-Sheet Paper Cassette Unit holds one paper cassette. It increases paper handling
capacity by 500 sheets of paper. For details, see "Optional Paper Cassette Unit" on page
269.
Consumable products
The life of the following consumable products is monitored by the product. The product lets
you know when replacements are needed.
Product nameProduct code
Toner Cartridge (Yellow)0316
Toner Cartridge (Magenta)0317
Toner Cartridge (Cyan)0318
Toner Cartridge (Black)0319
Photoconductor Unit1104
Getting to Know Your Product29
Chapter 2
Product Features and Various Options
Product Features
The product comes with a full set of features that contributes to ease of use and consistent,
high-quality output. The main features are described below.
About the EPSON AcuLaser CX21 series
The EPSON AcuLaser CX21 series consists of the following two products.
AcuLaser CX21N:Network capable base model
AcuLaser CX21NF:Network capable fax model
High-quality printing
When using the driver provided, your product does 600-dpi printing at a speed of up to 25
pages per minute when printing in the black-and-white mode on A4 paper. You’ll
appreciate the professional print quality produced by your product and its quick processing
speed.
Pre-defined color settings in the printer driver
The printer driver offers many pre-defined settings for color printing, allowing you to
optimize print quality for various types of color documents.
For Windows, see "Making the print quality settings" on page 49 for more information.
For Macintosh, see "Making the print quality settings" on page 94 for more information.
Toner save mode
To reduce the amount of toner used in printing documents, you can print rough drafts using
the Toner Save mode.
Product Features and Various Options30
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