Epson AcuLaser CX21N User Manual

Safety Instructions21
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...

Safety Instructions22
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.
 

Getting to Know Your Product23
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...

Getting to Know Your Product24
Product Parts
Front view
a. Auto Document Feeder
b. stopper
c. output tray
d. extension tray
e. control panel
f. cover A
g. MP tray
h. power switch
i. option cover
j. cover B
k. cover C
l. ADF cover
a
b
c
d
e
f
g k
l
j
i
h
 

Getting to Know Your Product25
Rear view
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
b
c
d
e
f a
gh
 

Getting to Know Your Product26
Inside the product
Scanner parts
a. fuser unit
b. photoconductor unit access lever
c. photoconductor unit
d. cleaning knob access lever
e. toner cartridge
f. paper guides (MP tray)
a. document cover
a
b
c
d
ef
a
b
c
 

Getting to Know Your Product27
Control panel
b. document table
c. transportation lock
a. One Touch Dial button A, B, C
(fax model only)Use these buttons to transmit a fax to a registered fax number 
assigned to the corresponding button. Available from any 
mode.
b. Data light
(Yellow)Flashes when the product is processing data.
c. Error light
(Red)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...

Getting to Know Your Product28
e.lLeft/ rRight button Use these buttons to sequentially display previous or next setting 
values. The rRight button is also used as the OK button to set 
and register a setting item. Also, the lLeft button can be used 
to move the cursor one character left and overwrite mistakenly 
entered data.
uUp/ dDown button Use 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....

Getting to Know Your Product29
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...

Product Features and Various Options30
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. 
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...