Epson AcuLaser CX21NF User Manual

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Windows 98 SE and 2000:
Double-click the Scanners and Cameras icon in Control Panel. Delete your scanner 
from the list of installed devices and reinstall Epson Scan following the instructions in 
your Start Here sheet.
❏The scanner may not work properly when your computer is in standby mode 
(Windows), or sleep mode (Mac OS X). Restart Epson Scan and try scanning again.
❏The scanner may not work properly if you upgrade your operating system but do not 
reinstall Epson Scan. See Uninstalling Your Scanning Software on page 316 for 
instructions on uninstalling and reinstalling it.
Scanning Takes a Long Time
❏Computers with USB 2.0 (high speed) ports can scan faster than those with USB 1.1 
ports. If you are using a USB 2.0 port with your scanner, make sure it meets the system 
requirements. See System Requirements on page 127 for details. 
❏Try scanning your original at a lower Resolution setting to speed up scanning. See 
Selecting the Scan Resolution on page 147 for instructions.
Scan Quality Problems
The Edges of Your Document Are Not Scanned
Move the document about 2.5 mm (0.1 inches) away from the horizontal and vertical edges 
of the document table to avoid cropping.
You See Only a Few Dots in Your Scanned Image
❏Make sure the document is placed on the scanner’s document table with the side to be 
scanned facing down. See Setting Your Originals on page 129 for details.
❏When scanning with the Black&White setting in Home or Professional Mode, change 
the Threshold setting. See Adjusting the Color and Other Image Settings on page 
153 for instructions.
 
						

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A Line Of Dots Always Appears in Your Scanned Image
The document table may be dusty or scratched. Clean the document table. See Cleaning 
the document table and the exposure window for Auto Document Feeder on page 291 for 
details. If you still have the problem, contact your dealer.
Straight Lines in Your Image Come Out Crooked
Make sure the document lies perfectly straight on the document table. Align the vertical 
and horizontal lines with the scales at the top and side of the document table.
Your Image is Distorted or Blurred
❏Make sure the document lies flat on the document table. Also make sure your 
document is not wrinkled or warped.
c
Caution:
Do not place heavy objects on the document table.
❏Make sure you do not move the document or scanner while scanning.
❏Make sure the scanner is placed on a flat, stable surface.
❏Select Unsharp Mask Filter in Epson Scan’s Professional Mode window. See 
Adjusting the Color and Other Image Settings on page 153 for instructions.
❏Adjust the Auto Exposure setting in Epson Scan’s Professional Mode window. See 
Adjusting the Color and Other Image Settings on page 153 for instructions.
You can also select Color Control and Continuous auto exposure in the 
Configuration window, or select the Color tab and click the Recommended Value 
button to return the Auto Exposure setting to the default. See Epson Scan Help for 
details.
❏Increase the Resolution setting. See Selecting the Scan Resolution on page 147 for 
instructions.
 
						

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Colors Are Patchy or Distorted at the Edges of Your Image
If your document is very thick or warped at the edges, cover the edges with paper to block 
external light as you scan.
Your Scanned Image is Too Dark
❏Change the Display Gamma setting to match your output device, such as a monitor or 
printer, in the Epson Scan Configuration window. See Epson Scan Help for details.
❏Adjust the Auto Exposure setting in Epson Scan’s Professional Mode window. See 
Adjusting the Color and Other Image Settings on page 153 for instructions.
You can also select Color Control and Continuous auto exposure in the 
Configuration window, or select the Color tab and click the Recommended Value 
button to return the Auto Exposure setting to the default. See Epson Scan Help for 
details.
❏Check the Brightness setting in Epson Scan’s Home or Professional Mode (see 
Adjusting the Color and Other Image Settings on page 153). Or adjust brightness 
using the Histogram in Professional Mode (see Epson Scan Help).
❏Adjust the brightness using the Histogram in Epson Scan’s Professional Mode. See 
Epson Scan Help for details.
❏Check the brightness and contrast settings of your computer monitor.
 
						

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An Image on the Back of Your Original Appears in Your Scanned 
Image
If your original is printed on thin paper, images on the back may be visible to the scanner 
and appear in your scanned image. Try scanning the original with a piece of black paper 
placed on the back of it. Also make sure the Document Type and Image Type settings are 
correct for your original. See Selecting Basic Settings on page 142 for details.
Ripple Patterns Appear in Your Scanned Image
A ripple pattern (called moiré) is a pattern that may appear in a scanned image of a printed 
document. It is caused by interference from the differing pitches in the scanner’s screen 
and the halftone screen in your original.
❏Select the Descreening Filter check box in Epson Scan’s Home or Professional Mode 
window. In Professional Mode, set the Screen Ruling of the Descreening Filter setting 
to an appropriate setting for your document and deselect the Unsharp Mask Filter 
setting. See Adjusting the Color and Other Image Settings on page 153 for 
instructions.
❏Select a lower Resolution setting. See Selecting the Scan Resolution on page 147 
for instructions.
Note:
You cannot remove ripple patterns when you are scanning using a resolution higher than 601 
dpi.
Characters Are Not Recognized Well When Converted Into Editable 
Text (OCR)
❏Make sure the document lies perfectly straight on the document table. Align the vertical 
and horizontal lines with the scales at the top and side of the document table.
Original image with 
moiré pattern Descreening Filter 
applied
 
						

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❏In Home Mode, select Black&White as the Image Type setting. In Professional Mode, 
select None for the B&W Option setting. Then try adjusting the Threshold setting.
❏Check your OCR software manual to see if there are any settings you can adjust in your 
OCR software.
Scanned Colors Differ From the Original Colors
❏Change the Image Type setting in Epson Scan’s Home or Professional Mode. See 
Selecting Basic Settings on page 142 for instructions. Select different combinations of 
this setting and the others mentioned below.
❏Change the Display Gamma setting to match your output device, such as a monitor or 
printer, in the Epson Scan Configuration window. See Epson Scan Help for details.
❏Adjust the Auto Exposure setting in Epson Scan’s Professional Mode. Also try 
selecting a different Tone Correction setting. See Adjusting the Color and Other Image 
Settings on page 153 for instructions.
❏Try selecting the following settings in the Configuration window: Color Control, 
Continuous auto exposure, and Recommended Value (on the Color tab). See 
Epson Scan Help for details.
❏Check the color matching and color management capabilities of your computer, display 
adapter, and software. Some computers can change the palette of colors on your 
screen. See your software and hardware manuals for details.
❏Use the color management system for your computer: ICM for Windows or ColorSync 
for Macintosh. With Windows, add a color profile that matches your monitor to improve 
on-screen color matching. (Exact color matching is very difficult. Check your software 
and monitor documentation for information on color matching and calibration.)
❏Printed colors can never exactly match the colors on your monitor because printers and 
monitors use different color systems: monitors use RGB (red, green, and blue) and 
printers typically use CMYK (cyan, magenta, yellow, and black).
You Have Trouble Adjusting the Scan Area in the Thumbnail Preview
❏Create a marquee or adjust the existing marquee to select the area you want to scan. 
See Adjusting the Scan Area (Marquee) on page 151 for instructions.
❏In the Configuration window, adjust the thumbnail cropping area using the Thumbnail 
Cropping Area slide. See Epson Scan Help for details.
 
						

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❏Switch to the Normal preview type (if available) and preview your image again. See 
Previewing and Adjusting the Scan Area on page 148 for instructions.
Uninstalling Your Scanning Software
You may need to uninstall and then reinstall your scanner software to solve certain 
problems or if you upgrade your operating system.
Uninstalling Epson Scan
Follow the instructions in the section for your operating system to uninstall Epson Scan.
Windows
Note:
❏The illustrations in this section show Windows XP screens. They may be different from the 
screens for your operating system.
❏To uninstall programs in Windows XP or 2000, you need to log on as a user with a Computer 
Administrator account (Windows XP) or as a user who belongs to the Administrators group 
(Windows 2000).
1. Turn off the scanner using its P On button.
2. Disconnect the scanner’s USB cable from your computer.
3. Open the Windows Control Panel and double-click the Add or Remove Programs icon 
(Windows XP) or the Add/Remove Programs icon (Windows Me, 98 SE, or 2000).
 
						

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4. Click Epson Scan in the list of currently installed programs and click Change/Remove 
(Windows XP or 2000) or Add/Remove (Windows Me or 98 SE).
5. When the confirmation window appears, click Yes.
6. Follow the on-screen instructions to uninstall Epson Scan.
In some cases, a message may appear to prompt you to restart the computer. If so, 
make sure Yes, I want to restart my computer now is selected and click Finish.
Mac OS X
1. Insert the scanner software CD-ROM in your CD-ROM or DVD drive.
2. Double-click the EPSON CD-ROM icon on your desktop.
3. Open the EPSON Scan folder.
4. Double-click the EPSON Scan Installer icon.
Note:
If the Authorization window opens, click the key icon, enter the administrators name and 
password, click OK, and click Continue.
5. When you see the license agreement, click Accept. The Installer window appears.
 
						

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6. Select Uninstall from the pull-down menu at the top and click the Uninstall button.
Uninstalling the Epson Creativity Suite
Follow the instructions in the section for your operating system to uninstall the Epson 
Creativity Suite.
Windows
Note:
❏The illustrations in this section show Windows XP screens. They may be different from the 
screens for your operating system.
❏To uninstall programs in Windows XP or 2000, you need to log on as a user with a Computer 
Administrator account (Windows XP) or as a user who belongs to the Administrators group 
(Windows 2000).
1. Open the Windows Control Panel and double-click the Add or Remove Programs icon 
(Windows XP) or the Add/Remove Programs icon (Windows Me, 98 SE, or 2000).
 
						

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2. Click EPSON Attach to Email in the list of currently installed programs and click 
Change/Remove (Windows XP or 2000) or Add/Remove (Windows Me or 98 SE).
3. When the confirmation window appears, click Yes.
4. Follow the on-screen instructions to uninstall Epson Attach to Email.
5. Repeat steps 2 through 4 for each of the following programs in the Epson Creativity 
Suite:
❏Epson Copy Utility 3
❏Epson Easy Photo Print
❏Epson File Manager
❏Epson Scan Assistant
Note:
Additional programs may be available, depending on the software you have installed on your 
system.
6. In some cases, a message may appear to prompt you to restart the computer. If so, 
make sure Yes, I want to restart my computer now is selected and click Finish.
Mac OS X
Note:
Log onto a Computer Administrator account to uninstall software. You cannot uninstall programs if 
you log onto a Limited account.
1. Insert the scanner software CD-ROM in your CD-ROM or DVD drive.
2. Double-click the EPSON CD-ROM icon on your desktop.
 
						

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3. Double-click the EPSON Creativity Suite folder, then open the folder for the program 
you want to uninstall. (If there are additional folders for specific language versions, 
open the folder for the language you installed.)
4. If you see an Uninstaller icon, double-click it. Then enter your password or 
pass-phrase as necessary and follow the on-screen instructions. When you are 
finished, go to step 9.
If you see only an Installer icon, double-click it. Then enter your password or 
pass-phrase as necessary and go to step 5.
5. If you see a license agreement screen, click Accept.
6. In the Installer window, select Uninstall from the pull-down menu in the upper left 
corner.
7. Click the Uninstall button.
8. When uninstallation is finished, click OK, then click Quit.
9. Repeat steps 2 through 8 for each program you want to uninstall in the Epson Creativity 
Suite folder.
10. If you need to uninstall the Attach to Email program, double-click the Applications 
folder on your Mac OS X hard drive.
11. Open the EPSON folder, then open the Creativity Suite folder.
12. Select the Attach to Email folder icon and drag it to the Trash icon.
Uninstalling the On-screen User’s Guide
If you need to uninstall this on-screen User’s Guide, follow the steps here for your 
operating system.
Windows
Note:
To uninstall programs in Windows XP or 2000, you need to log on as a user with a Computer 
Administrator account (Windows XP) or as a user who belongs to the Administrators group 
(Windows 2000).
1. Turn off the scanner using its P On button.
2. Disconnect the scanner’s USB cable from your computer.