Epson Gt20000 User Guide
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Using the Optional Automatic Document Feeder111 GT-20000 User’s Guide 8. Click the arrow to open the Resolution list and select an appropriate resolution for your original(s). See “Selecting the Scan Resolution” on page 32 for instructions. 9. Click Preview to preview your image(s). The Preview window appears and displays your image(s). See “Previewing and Adjusting the Scan Area” on page 34 for instructions on settings in the Preview window. 10. Modify the image quality, if necessary. See “Adjusting the Color and Other Image Settings” on page 39 for instructions. 11. Click the arrow to open the Target Size list and select the size you would like your scanned image(s) to be, if necessary. You can scan your images at their original size, or you can reduce or enlarge their size by selecting a Target Size. See “Selecting the Scan Size” on page 45 for instructions. 12. Place the ejected document pages on top of the rest of the pages. 13. Click Scan. What happens next depends on how you started your scan. See “Finishing the Scan” on page 49 for instructions. If you have problems while scanning using the ADF, see “Optional Automatic Document Feeder Problems” on page 118. Dropout: Red Drops out red from the scan. Dropout: Green Drops out green from the scan. Dropout: Blue Drops out blue from the scan. Color Enhance: Red Enhances red in the scan. Color Enhance: Green Enhances green in the scan. Color Enhance: Blue Enhances blue in the scan. Text Enhancement Technology Improves accuracy during OCR (Optical Character Recognition) scanning by eliminating the document’s background from the scan. This setting is available only when the Image Type is set to Black & White. Auto Area Segmentation Makes grayscale images clearer and text recognition more accurate by separating the text from the graphics. This setting is available only when the Image Type is set to Black & White.
Maintenance112 GT-20000 User’s Guide Chapter 9 Maintenance Cleaning the Scanner To keep your scanner operating at its best, clean it periodically using the following procedure. c Caution: ❏Do not press the glass surface of the document table with any force. ❏Be careful not to scratch or damage the glass surface of the document table, and do not use a hard or abrasive brush to clean it. A damaged glass surface can decrease the scan quality. ❏Never use alcohol, thinner, or corrosive solvent to clean the scanner. These chemicals can damage the scanner components and the case. ❏Be careful not to spill liquid into the scanner mechanism or electronic components. This could permanently damage the mechanism and circuitry. ❏Do not spray lubricants inside the scanner. ❏Never open the scanner case. 1. Turn off the scanner. 2. Unplug the power cord from the scanner. 3. Clean the outer case with a cloth dampened with mild detergent and water. 4. If the glass surface of the document table gets dirty, clean it with a soft dry cloth. If the glass surface is stained with grease or some other hard-to-remove material, use a small amount of glass cleaner on a soft cloth to remove it. Wipe off all remaining liquid. c Caution: Do not spray glass cleaner directly on the scanner glass. Make sure that no dust builds up on the surface of the document table. Dust can cause spots in your scanned images.
Maintenance113 GT-20000 User’s Guide Replacing the Scanner Lamp The luminosity of the scanner lamp declines over time. If the lamp breaks or becomes too dim to operate normally, the scanner stops working and both the Ready and Error lights rapidly flash. When this happens, the lamp assembly must be replaced by a professional. For details, contact your dealer. See “Contacting Customer Support” on page 133. c Caution: Never open the scanner case. If you think repairs or adjustments are necessary, consult your dealer. Transporting the Scanner Before you transport the scanner for a long distance or store it for an extended period of time, the scanner’s carriage needs to be in the home position to prevent damage. 1. Make sure the carriage is in the home position of the scanner (on the left side). If the carriage is not in the home position, turn on the scanner and wait until the carriage moves to the home position. 2. Turn off the scanner, then unplug the power cord. 3. Pull down the transportation lock to the locked position. 4. Disconnect all the cables from the scanner. 5. Attach the packing materials that came with the scanner, then repack the scanner in its original box or a similar box that fits the scanner snugly.
Troubleshooting114 GT-20000 User’s Guide Chapter 10 Troubleshooting Scanner Problems Error Indicators When an error occurs, the scanner stops operating and the Error and Ready lights indicate the error type. Error light (Red)Ready light (Green)Meaning On On The scanner has received incorrect commands from your scanning software. When this error occurs, try to scan the document again. The scanner returns to normal when it receives correct commands. Normally you do not need to reset the scanner when this type of error occurs. Flashing Off The communication procedure is wrong or time-out has occurred if SCSI is used. When this error occurs, turn the scanner off and then back on again to reset it. If you are using the SCSI interface, turn off the computer first. Then, make sure you follow the proper SCSI power-on sequence. See “Power-on sequence” on page 90 for instructions. Flashing Flashing An error has occurred. ❏Make sure the scanner is connected to your computer properly. See the Start Here sheet for instructions on connecting the scanner to your computer. ❏Make sure the scanner software is fully installed. See the Start Here sheet for instructions on installing the scanner software. ❏Paper is jammed in the optional ADF. Remove the jammed paper from the ADF. See “Paper Jams in the ADF” on page 118. ❏Turn off the scanner and turn it on again. If the Error and Ready lights are still flashing, the scanner may be malfunctioning, or the scanner lamp may need to be replaced. See “Contacting Customer Support” on page 133 for details.
Troubleshooting115 GT-20000 User’s Guide The Scanner Does Not Turn On ❏Make sure your scanner’s power cord is securely connected to the scanner and a working electrical outlet. ❏Make sure the electrical outlet works. If necessary, test it by plugging in another electrical device and turn it on. The Scanner Does Not Turn Off Make sure the scanning software is not running. You Cannot Start Epson Scan ❏Make sure the scanner is turned on. ❏Turn off the scanner and computer, then check the interface cable connection between them to make sure it is secure. ❏Use the USB cable that came with your scanner or that is indicated in “USB Interface” on page 144. Note: A USB cable is not bundled with the scanner in some areas. ❏Connect the scanner directly to the computer’s USB port or through one USB hub only. The scanner may not work properly when connected to the computer through more than one USB hub. ❏Make sure your computer supports USB. See “Checking For Windows USB Support” on page 116 for instructions. ❏If you are using any TWAIN-compliant program, such as Adobe Photoshop Elements, make sure that the correct scanner is selected as the Scanner or Source setting. ❏If you upgraded your computer’s operating system, you need to reinstall Epson Scan. Uninstall Epson Scan as described in “Uninstalling Your Scanning Software” on page 127, then reinstall it as described in the Start Here sheet. Off On The scanner is ready to scan. If the optional ADF is installed, this indicates a problem with the ADF, such as an empty ADF, or an open cover. Check the ADF and correct the cause of the problem.
Troubleshooting116 GT-20000 User’s Guide For Windows only: ❏Make sure the scanner’s SCSI ID and terminator are set correctly. See “Setting Up the SCSI Interface” on page 88 for details on making these settings. If you have other expansion boards in your computer, make sure that their interrupt settings are not interfering with your SCSI board. See your computer’s documentation for details. ❏Make sure the SCSI cable meets the requirements of your SCSI board. Refer to the documentation that comes with the interface board. ❏Make sure the SCSI interface board is installed correctly. ❏Change the scanner’s SCSI ID number to one that is not being used by any other SCSI device. ❏Check the SCSI connection sequence and make sure the terminator switch of the end of device of daisy chain is set correctly. ❏Make sure your scanner’s name appears under Imaging devices without a (?) or an exclamation (!) mark in the Device Manager window. If the scanner’s name appears with one of these marks or as an Unknown device, uninstall Epson Scan as described in “Uninstalling Your Scanning Software” on page 127, then reinstall it as described in the Start Here sheet. Checking For Windows USB Support 1. Do one of the following. Windows Vista: Click the start button icon and select Control Panel. Windows XP: Click Start and select Control Panel. Windows 2000: Click Start, point to Settings, and select Control Panel. 2. Click System and Maintenance and then System (Windows Vista) or double-click the System icon (Windows XP and 2000). 3. Do one of the following. Windows Vista: Click Device Manager, then click Continue in the User Account Control window. Windows XP and 2000: Click the Hardware tab, then click Device Manager.
Troubleshooting117 GT-20000 User’s Guide 4. Scroll down and double-click Universal Serial Bus controllers. If a USB Universal Host Controller and USB Root Hub are listed, Windows supports USB. 5. Try scanning again. If your scanner still is not recognized, contact your dealer or a qualified service for assistance. See “Contacting Customer Support” on page 133. Pressing the Start Button Does Not Start the Correct Program ❏Make sure Epson Scan is installed correctly. ❏Windows Vista and XP: Click the Events tab in your scanner’s Properties window and make sure Take no action is not selected. Also, make sure the Start Button is selected in the Select an event list box, and Start this program is selected. See “Assigning a Program to the Start Button” on page 84 for details. Windows 2000: Click the Events tab in your scanner’s Properties window and make sure the Disable device events check box is not checked. Also, make sure the Start Button is selected in the Scanner events list box, and the desired application is selected in the Send to this application list. See “Assigning a Program to the Start Button” on page 84 for details. ❏Mac OS X: Make sure you are logged on as the user who installed the scanner software. Other users must first start Epson Scanner Monitor in the Applications folder and then press the a Start button to scan.
Troubleshooting118 GT-20000 User’s Guide Optional Automatic Document Feeder Problems You Cannot Scan Using the ADF ❏Make sure you have selected either Office Mode or Professional Mode in Epson Scan. See “Changing the Scan Mode” on page 22 for instructions. ❏Make sure Auto Detect (Office Mode only), ADF - Single-sided, or ADF - Double-sided is selected as the Document Source setting in Epson Scan. See “Scanning in Office Mode Using the ADF” on page 108 or “Scanning in Professional Mode Using the ADF” on page 110 for instructions. ❏If the ADF is open, close it and try scanning again. Paper Jams in the ADF If a paper jam occurs, first open the ADF cover, remove any paper from the document table, then determine where the paper jam occurred.
Troubleshooting119 GT-20000 User’s Guide If paper jams at the feeder position, open the left cover and carefully pull the jammed paper out of the feeder mechanism. Note: Be careful not to pull too hard; otherwise, the paper may tear, making it more difficult to remove.
Troubleshooting120 GT-20000 User’s Guide If paper jams at the paper eject position, open the right cover and carefully pull the jammed paper out of the feeder mechanism. Note: Be careful not to pull too hard. If the paper tears, open the middle cover and remove the paper.