Epson AcuLaser CX21N User Manual

Using the Control Panel261
Install a genuine Epson product, or select Clear Warning or Clear All Warnings from 
Reset Menu in the Setup menu’s Printer Settings to clear the warning message. See 
Toner Cartridge on page 278 for instructions on replacing the toner cartridge.
Optional RAM Error
The optional memory module may be corrupted or incorrect. Replace it with a new one.
Paper Jam WWWWW
The location where the paper jam occurred is displayed at WWWWW. WWWWW indicates the 
location of the error.
If a...

Using the Control Panel262
The paper loaded in the specified paper source (tttt) does not match the required paper 
size (sssss). Replace the loaded paper with the correct size paper and press the xB&W 
Start or xColor Start button to resume printing, or press the yCancel button to cancel the 
print job.
If you press the xB&W Start or xColor Start button without replacing the paper, the 
product will print on the loaded paper even though it does not match the required size.
Photoconductor Trouble
A...

Using the Control Panel263
The photoconductor has reached the end of its service life. Replace the photoconductor 
unit with a new one. See Photoconductor Unit on page 281 for instructions.
The error clears automatically after you replace the unit and close all product covers. The 
photoconductor service life counter is reset automatically.
When the error light is blinking, you can continue printing by pressing the xB&W Start or 
xColor Start button. However, the print quality is not guaranteed from then...

Using the Control Panel264
The product is currently in power-save mode. This mode is canceled when the product 
receives job data or the  Reset button is pressed.
Toner Cart Error uuuu
A read/write error has occurred for the indicated toner cartridges. Cyan (C), Magenta (M), 
Yellow (Y), or Black (K) appear in place of uuuu. Remove the toner cartridges and reinsert 
them. If that fails to clear the error, replace the toner cartridges.
To install the indicated cartridges. See Toner Cartridge on page 278....

Using the Control Panel265
The product is unable to write data to the ROM module correctly. You cannot remove the 
ROM P because the ROM P is a program ROM module. Contact your dealer.
Writing ROM P
The product is writing data into the ROM module in the ROM slot P.
Wrong Photoconductor
An inappropriate photoconductor unit is installed. Install only the photoconductor unit listed 
in Consumable products on page 29.
See Photoconductor Unit on page 281 for instructions on replacing the photoconductor...

Using the Control Panel266
An error occurred when you set the transportation lock to the   locked position. To clear 
the error message on the LCD panel, set the transportation lock to the   unlocked 
position, and then turn on the product again or press the xB&W Start or xColor Start 
button to restart the scanning job.
Scanner Cover Open
The ADF cover is opened.
Scanner error
An error occurred in the scanner unit. Turn off the product, and then turn it on again several 
minutes later. If the error...

Using the Control Panel267
Please Wait
This message appears until a carriage lock is completed.
Set Document to ADF
This message appears when you set a legal size document on the document table for fax 
transmission. Legal size documents can only be used in the Auto Document Feeder.
Unable to Send
Unable to perform fax transmissions. This message appears when you send a fax 
manually or a color fax transmission fails. When sending a fax using the memory 
transmission function, the message does not...

Using the Control Panel268
Service Req Cffff/Service Req Exxx
A controller error or a print engine error has been detected. Turn off the printer. Wait at 
least 5 seconds, then turn it back on. If the error message still appears, write down the error 
number listed on the LCD panel (Cffff/Exxx), turn off the printer, unplug the power cord, 
then contact a qualified service representative.
 

Installing Options269
Chapter 12 
Installing Options
Optional Paper Cassette Unit
For details about the paper types and sizes that you can use with the optional paper 
cassette unit, see Optional 500-Sheet Paper Cassette Unit on page 35. For 
specifications, see Optional 500-Sheet Paper Cassette Unit on page 365.
Handling precautions
Always pay attention to the following handling precautions before installing options:
The product weighs about 33.1 kg (73 lb), excluding consumable products. One person...

Installing Options270
1. Turn the product off and unplug the power cord and interface cable.
2. Take the optional paper cassette unit out of the cardboard box, then remove the 
protective originals in the cassette.
3. Place the optional paper cassette unit where you intend to set up the product. Then, put 
the product onto the optional paper cassette unit. Align each of the product’s corners 
with those of the unit, then lower the product until it rests securely on the unit.
a. hole
b. projection
w...