Epson Stylus Scan 2500

Product Controls

Operate - Turns the Stylus Scan 2500 on and off.

Scan - Lets you scan directly to an application with one touch. You must set up the scanner monitor and a compatible application to use this button. See the Stylus Scan 2500 User's Guide for more information.

Paper Size button - Press the Paper Size button to select paper size.

Darker/Lighter - Press the + or - button to make your copy Darker or lighter

Reduce/Enlarge - Press the + or - button under Reduce/Enlarge to make your copy smaller or larger than the original. You can make copies as small as 50% of the original size, or as large as 200%.

B&W/Color - Press the B&W/Color button if you want to make a color copy (default is black & white).

Quality - Press the Quality button to set copy quality.

Copy - Press the green Copy button to begin copying.

What are the minumum system requirements for PC's.

Windows System Requirements

• PC with at least a 486/66 MHz processor (Pentium recommended)
• Microsoft Windows 95 or 98 (USB only with Windows 98 preinstalled - NO UPGRADES)
• At least 16MB of RAM (32MB or more recommended)
• At least 50MB of free hard disk space (100MB recommended)
• VGA or better display adapter and monitor (24-bit color recommended)
• Double-speed (2x) CD-ROM drive for installing the software (quad-speed [4x] or faster recommended)
• Your system should have one of the following interfaces:
  • Available preinstalled USB port or hub connection, with shielded USB "AB" interface cable, from Series A (computer) to Series B (EPSON Stylus Scan), up to 6.5 feet (2 m) long
  • Available parallel port with a high-speed, bidirectional, IEEE-1284 compliant parallel cable (6 to 10 feet long). The EPSON Stylus Scan cannot be used with a switch box or a pass-through port (for example, on a Zip drive). The cable must have a D-SUB, 25-pin, male connector for your computer and a 36-pin, Centronics compatible connector for the EPSON Stylus Scan

What are the minimum system requirements for Mac's.

Macintosh System Requirements

• iMac series or Power Macintosh G3 with built-in USB port
• Mac OS 8.1 or later (8.5 or later recommended)
• At least 32MB of available memory (64MB recommended)
• At least 50MB of free hard drive space (100MB recommended)
• VGA or better monitor (24-bit color recommended)
• Double-speed (2x) CD-ROM drive (quad-speed [4x] or faster recommended) for installing the software
• Available built-in USB port or hub connection, with shielded USB "AB" interface cable, from Series A (computer) to Series B (EPSON Stylus Scan), up to 6.5 feet (2 m) long

Note: If your iMac is running Mac OS 8.1, you need to install the iMac Update 1.0 before installing the EPSON Stylus Scan software. If your iMac is running Mac OS 8.5 or 8.51, Apple recommends that you install iMac Update 1.1.

What software comes with the EPSON Stylus Scan 2500?

The EPSON Stylus Scan 2500 CD-ROM contains the following software:

EPSON Smart Panel for Windows - Lets you scan, copy, and print by clicking a button on your computer screen. You can also use it with the Scan button on your control panel for one-touch scanning. If you send in the coupon that came with your EPSON Stylus Scan, you'll receive a free upgrade to EPSON Smart Panel for Macintosh when it's available.

NewSoft TM Presto! PageManager for Macintosh only - Lets you scan, print, and work with your scanned files from one easy-to-use window.

EPSON Personal Copy for Macintosh only - Lets you use the control panel on your computer screen to make customized settings for high-quality opies.

WinFax Basic for Windows - Lets you send and receive faxes through the modem in your computer.

Adobe Acrobat Reader - Lets you read the on-screen manuals for EPSON Smart Panel, Presto! PageManager for EPSON, and Adobe PhotoDeluxe, or any other files in the Portable Document Format (PDF).

eFax - Internet fax service provided by eFax.com, which lets you receive faxes through your e-mail. For instructions on installing and using eFax, see "Using eFax" on page 111.

Adobe PhotoDeluxe - Image-editing software for enhancing your scanned photos, adding special effects, and creating projects like web pages, business cards, and calendars.

What should I do if I'm having problems installing the software?

Make sure your EPSON Stylus Scan is plugged in and turned on. Make sure you've closed all other applications, including any screen savers and anti-virus programs running in the background. Then try installing the software again, taking care to follow the instructions on the Start Here sheet.

When I connect to a USB port on a Windows computer, why are several USB devices recognized and installed?

This is the correct installation procedure. Your EPSON Stylus Scan includes a printer, scanner, and internal USB hub. Even though the process may seem repetitious, make sure you don't cancel out of the installation.

When trying to launch Smart Panel on my Stylus Scan connected via USB, why am I getting the following error message? Cannot find correct (registry) information of the multifuntion device. This may be caused by improper installation. Please uninstall the application and perform the installation again.

To avoid the error message, Smart Panel and the Stylus Scan drivers must always be installed together when running Software Setup for the first time. They are checkmarked by default in the Add Software window and should not be unchecked. If you uninstall Smart Panel and then reinstall the program, navigate to the Add Software window, checkmark both the program and drivers, then click OK to reinstall.

For PC users: Run CDSETUP.exe, click the Add Software button, checkmark the StylusScan drivers box and click OK to install. All other items can be unchecked. It is not necessary to reinstall Smart Panel.

For MAC users: Double-click on the Software Installer icon, click the Add Software button, checkmark the StylusScan drivers box and click OK to install. It is not necessary to reinstall Smart Panel.

Why do I get the following message: Setup cannot find the Windows printer files needed to set up the WinFax printer driver.

Remove the EPSON Stylus Scan 2500 CD-ROM and insert your Windows 95 or Windows 98 CD-ROM. Then click OK. If you don't have a Windows CD-ROM, locate the Windows source files on your hard disk drive. (They may be in the Win 95 or Win 98 folder.) If you need help locating the Windows source files, contact your computer manufacturer.

How can I determine if there is a problem in the computer or the EPSON Stylus Scan?

You can run a printer check to determine whether the problem comes from the EPSON Stylus Scan or your computer.

1. Make sure both the EPSON Stylus Scan and your computer are turned off.
2. Disconnect the interface cable from the EPSON Stylus Scan.
3. Make sure paper is loaded.
4. Hold down the load/eject button, then press and release the Operate button. Continue holding down the load/eject button until the Operate light starts to flash, then release it. A check page is printed, showing the ROM version number, ink counter, and a nozzle check pattern.
5. After the page is printed, turn off the power. Then reconnect the interface cable and turn on your EPSON Stylus Scan and computer.

If the results are satisfactory, the problem lies in your software settings, the interface cable, or your computer. If the check page does not print correctly, you may have a problem with your EPSON Stylus Scan. Try the suggestions in "Problems and Solutions" on page 139 of your user's manual for more information.

How do I diagnose problems on EPSON Stylus Scan?

You can diagnose most problems by checking the LCD status display panel for a message. If a problem occurs while you're printing, you'll see an error message in the progress window on your computer (Windows only). It may also be helpful to try running a printer check; see page 137 of your user's manual for instructions. Follow these guidelines when you see an error message in the LCD status display panel:

(An unknown printer error has occurred) - Turn off the EPSON Stylus Scan and contact your dealer.

(The used ink tank is full) - Turn off the EPSON Stylus Scan and contact your dealer.

(Scanner Error) - The transportation lock may be locked, or the fluorescent lamp may need to be replaced. Make sure the transportation lock is in the unlocked position, and then turn the EPSON Stylus Scan off and back on. If the EPSON Stylus Scan still doesn't operate properly, contact your dealer.

(ADF Jam) - No paper is loaded, or paper is jammed in the automatic document feeder. Load paper in the automatic document feeder, or turn off the EPSON Stylus Scan and remove the jammed paper.

(ADF Cover Open) - Either the automatic document feeder is not flat against the document table, or the cover at the back of the automatic document feeder is open. Close the cover, or gently push down on the automatic document feeder until it rests on the document table.

(Paper Jam) - Paper is jammed in the EPSON Stylus Scan. Press the load/eject button. If the error doesn't clear, remove the jammed paper from the printing area. Check that paper is loaded in the sheet feeder, and then press the load/eject button to resume printing or copying.

(Printer Paper Out) - There's no paper loaded in the sheet feeder. Load paper into the sheet feeder, and then press the load/eject button to resume printing or copying.

(Black Ink Low) - The black ink cartridge is nearly empty. Replace it.

(Color Ink Low) - The color ink cartridge is nearly empty. Replace it.

(Black Ink Out) - The black ink cartridge is empty. Replace it.

(Color Ink Out) - The color ink cartridge is empty. Replace it.

(Maint. Cover Open) - The EPSON Stylus Scan won't operate if the maintenance cover is open. Close it. See page 138 of your user's manual for help locating the maintenance cover.

What should I do to transport the EPSON Stylus Scan?

For short moves, you can just pick up the EPSON Stylus Scan 2500 by the handles on the side and set it down. For longer moves, you need to repack it in its original box and lock the print head and transportation lock.

Follow these steps:

1. Turn on the EPSON Stylus Scan and wait until the print head locks in position. Then turn off the EPSON Stylus Scan.
2. Unplug the power cord, and then disconnect the interface cable.
3. Open the document and maintenance covers.
4. Push the transportation lock right (as you are facing the printer) to lock the scanner carriage.
5. Close the maintenance and document covers.
6. Remove all paper from the sheet feeder, and then remove the paper support.
7. Push in the output tray extension. Caution: To avoid damage, always leave the ink cartridges installed when transporting the EPSON Stylus Scan. Also, remember to lock the print head and the transportation lock. Push in the output tray extension. Lock the transportation lock. Note: Tape the print head to the right side from the front of the printer.
8. Use tape to secure the document cover. Secure the ink cartridge holder to the printer with tape.
9. Use the original box and packing materials to repack the EPSON Stylus Scan.
10. Keep the EPSON Stylus Scan level during transport. Caution: Be sure to remove the tape used in step 8 before printing.

I can print, but why am I unable to scan?

If you're using a parallel port, make sure you've connected the EPSON Stylus Scan to LPTl. Your scanner won't work if you're using LPT2. Note: LPT1 has to be a bidirectional parallel port and ECP Mode is recommended. If ECP Mode is not available then set up the port mode to either EPP or bidirectional.

Why doesn't the EPSON Stylus Scan work when connected to a parallel pass-through port on a Zip drive?

The EPSON Stylus Scan is not designed to work on this type of port. You must remove the Zip drive and connect it to a different port. (You may need to install a second bidirectional parallel port.) Connect the EPSON Stylus Scan directly to your computer's built-in parallel port. Do not use a switch box. You can also connect the EPSON Stylus Scan to your computer's built-in USB port (Windows 98 only).

After I installed my EPSON Stylus Scan with a parallel connection, my Zip drive doesn't work when reconnected to the same parallel port. Why?

You may need to reinstall your Zip drive software. To avoid this problem, you can disable the Zip drive in your Windows Device Manager before you connect the EPSON Stylus Scan. See your Windows Help for more information.

What should I do if only the Operate light is on, but nothing prints?

Turn off the EPSON Stylus Scan and your computer. Make sure the interface cable is connected securely. (Use a fully shielded USB "AB" interface cable or an IEEE-1284 compliant parallel cable.) Make sure there's no packing material inside the EPSON Stylus Scan. Run a printer check as described on page 137. If you ran a printer check successfully, make sure your EPSON Stylus Scan and application software are installed correctly. If you're printing on a network, you may need to set up your EPSON Stylus Scan for network printing, as described in your electronic EPSON Stylus Scan 2500 Reference Guide.

The EPSON Stylus Scan sounds as though it is printing, but nothing prints. Why?

Make sure the print head nozzles are not clogged. To run a cleaning cycle, see "Cleaning the Print Head" on page 129 of your user's manual.

How do I set it up for the fastest printing?

Make sure your system meets the requirements listed in Chapter 9 of your user's manual. If you are printing a high-resolution image, you need more than the minimum requirements listed. You may also need to do the following:

Clear space on your hard drive or run a defragmentation utility. Don't run too many applications at the same time. Increase your system's memory (RAM).

Note: If you're trying to print or copy a large image, your computer may not have enough memory.

For the fastest printing, try the following:

• Choose Black ink if your document does not include any other color.
• Set the Quality/Speed slider to Speed.
• If you upgraded from Windows 95 to Windows 98, you need to uninstall and reinstall your driver. See page 154 of your user's manual for instructions on uninstalling software.
• If you're using a parallel port, enable ECP/DMA mode. See your computer documentation for instructions.

Why does the EPSON Stylus Scan make noise when you turn it on or after it has been sitting for a while?

Your printer is performing routine maintenance.

What can I do about horizontal banding?

Make sure the print head nozzles are not clogged. Make sure the Media Type setting matches the paper you loaded. See "Choosing the Right Settings for EPSON Papers" on page 52 of your user's manual for guidelines. Make sure the printable side of the paper is face up. It's usually whiter or shinier. Enable Microweave and slide the Quality/Speed button to the Quality setting in printer setup. Check the LCD status display panel for a message that you're low on ink; see "Removing and Installing Ink Cartridges" on page 126. If your ink cartridge is more than six months old, you may need to replace it; see "Replacing an Outdated Ink Cartridge" on page 128 of your user's manual. If you see banding when you print, but not when you copy, try using Automatic mode. Make sure you're not using the Maximum Printable Area setting. Banding may occur in the expanded area. Set the paper thickness switch to the 0 position. Place the EPSON Stylus Scan on a stable, level surface. Make sure none of the five rubber feet is missing from the bottom of the EPSON Stylus Scan.

Note: For other image quality problems when you're copying, see "Solving Image Quality Problems" beginning on page 151 of your user's manual.

What can I do about vertical banding or misalignment?

Make sure the print head nozzles are not clogged. Run the Print Head Alignment utility. To align the print head, make sure a high quality ink jet paper is loaded and the EPSON Stylus Scan has power. Access the "Utility" tab (if you are using Windows) or click the "Utility" button (if you are using a Macintosh) located in your printer driver settings. Click the Print Head Alignment icon and follow the instructions on the screen. Make sure the alignment pattern is aligned perfectly. If not, choose one of the other alignment pattern numbers with the most perfect alignment and reprint the alignment sheet. Don't use the High Speed setting. Set the paper thickness switch to the 0 position. Place the EPSON Stylus Scan on a stable, level surface. Make sure none of the five rubber feet is missing from the bottom of the EPSON Stylus Scan.

What should I do if the printout is blurry or smeared?

Make sure your paper isn't damp, curled, or loaded face down (the printable side should be loaded face up). Try using Automatic mode. Use a support sheet with special paper or film, or try loading it one sheet at a time. Run the Print Head Alignment utility. Make sure the print head nozzles are not clogged. If you're using the automatic document feeder, try cleaning the paper path guide. Follow the instructions in "Cleaning the Paper Path Guide" on page 121 of your user's manual. Check the paper thickness switch position. If it's in the + position, your printer is set for thicker paper or envelopes and your image may smear. For most papers, set the paper thickness switch to the 0 position.

Make sure your Media Type setting matches the paper you're using. See "Choosing the Right Settings for EPSON Papers" on page 52 of your user's manual for guidelines. For the best printouts, use EPSON papers and other media.

What should I do if the printout is faint or has gaps in the image?

Make sure the print head nozzles are not clogged. Check the LCD status display panel for a message that you're low on ink; see "Replacing an Ink Cartridge" on page 125 of your user's manual. Make sure the Media Type setting matches the paper you're using. Make sure your paper isn't damaged, old, dirty, or loaded face down. Try using Automatic mode.

What should I do if the printout has incorrect or missing colors?

Make sure the Ink setting is set to Color for color images. Make sure the print head nozzles are not clogged. If you are printing a high-resolution image, try turning off PhotoEnhance.

Try using Automatic mode. See "Basic Printing with Windows" on page 43 of your user's manual or "Basic Printing on a Macintosh" on page 46 for instructions.

Why don't the printed colors exactly match the on-screen Colors?

You can use a color management system to get as close as possible. For information on your printer software's color matching options, see your electronic EPSON Stylus Scan 2500 Reference Guide.

What should I do if the printout contains incorrect characters?

Make sure the interface cable is connected securely at both ends. Make sure your EPSON Stylus Scan 2500 is selected as the current printer in your application or as the Windows default printer. If you have a Macintosh, make sure SS 2500 is selected in the Chooser. Make sure there aren't any stalled print jobs. If there are, delete them and then try printing again. Don't use a switch box with your printer.

What can be done if the printout is grainy?

Try using a higher quality paper. Run the Print Head Alignment utility. You may need to increase the image resolution or print it in a smaller size. See your software documentation for instructions. Set the monitor's color depth to at least 16-bit (24-bit is recommended).

Why are my color documents printing in black and white?

Make sure your EPSON Stylus Scan printer and software are selected in your software application. Make sure color printing is selected in your application and the printer software.

What can I do about paper feed problems?

If your EPSON Stylus Scan doesn't feed paper, feeds multiple Pages, or paper is jammed, removed the jammed paper, then remove and replace the stack of paper. Finally, press the load/eject button. Make sure of the following: Paper isn't old, creased, damp, or too thin. Avoid humid environments. The edge guide is resting against the stack of paper. Paper isn't loaded above the arrow on the edge guide. If paper doesn't eject fully, you may have set the wrong paper size. Press the load/eject button to eject the paper. Then make sure you select the correct paper size in your application or print settings.

Fan the stack of paper and then even the edges before loading it. Make sure your EPSON Stylus Scan is on a stable, level surface.

Why is the printer printing blank pages?

Make sure the EPSON Stylus Scan 2500 is selected in your application. Also, if you're running Windows, make sure it's selected as the Windows default printer. If you have a Macintosh, select SS 2500 in the Chooser. Make sure you have selected the correct paper size. Make sure the print head nozzles are not clogged.

What should I do if my EPSON Stylus Scan software doesn't work properly?

If you're running other software at the same time, using memory resident programs, or have many device drivers, the computer may not have enough memory. Also, if you're scanning a large image or scanning at a high resolution, your computer may not have enough memory to process the image. Try closing other applications or increasing your system's memory (RAM). If you're using the EPSON TWAIN software, make sure you select EPSON Stylus Scan FB as your TWAIN source.

If you're using EPSON Personal Copy on your Macintosh, make sure you select SS 2500 in the Chooser. Make sure your EPSON Stylus Scan is turned on, and that the interface cable is securely connected at both ends. Try restarting your computer. Make sure you turn on the EPSON Stylus Scan before you turn on your computer.

What should I do if I see one of these messages: Cannot find the scanner on the bus (Macintosh) or Scanner not ready (Windows)?

Make sure your EPSON Stylus Scan is turned on and securely connected to your computer or USB hub. If your EPSON Stylus Scan is connected to an external USB hub, make sure it's a first tier hub. The first tier hub is the hub closest to the host computer, if more than one hub is connected to the computer. If you're copying, make sure SS 2500 is selected in the Chooser (Macintosh).

If you're using the EPSON TWAIN software, make sure you select EPSON Stylus Scan FB as your TWAIN source.

Try restarting your computer. Make sure you turn on the EPSON Stylus Scan before you turn on your computer.

What should I do if I try to copy on a Macintosh and the original is scanned but doesn't print?

Open the Chooser, select SS 2500, and turn on background printing. Then try copying again.

What should I do if the image is slanted or skewed?

Make sure the original document is positioned so that the horizontal and vertical edges are carefully aligned with the scales along the sides of the document table. If you're using the automatic document feeder, make sure the document guides fit snugly against the edges of the original document. If you're using EPSON Smart Panel's Copy Utility (Windows), select Straighten Only in the Automatic Photo Layout box.

What should I do if the image quality is poor?

If you're scanning or copying a photograph using EPSON Smart Panel, make sure you select Photo as your Scan Material or Document Type. If you're using EPSON TWAIN, select Color Photo (or Black & White Photo if your photo is black and white) as your Image Type. Adjust your Quality and Resolution settings. If you're using the automatic document feeder, try cleaning the paper path guide. Follow the instructions in "Cleaning the Paper Path Guide" on page 121 of your user's manual. If you're copying a photograph, use the EPSON Photo Paper in your Media Pack.

What should I do if something is missing or incorrect in the image?

If your page is blank, make sure you place the original document face down on the document table. If you're using the automatic document feeder, make sure you load the document face up in the feeder. If text is missing or incorrect in your scanned image, try using the TWAIN software to adjust the threshold. See your electronic EPSON Stylus Scan 2500 Reference Guide for more information.

If your original document contains both text and graphics, text may not be recognized correctly by the OCR software. If you're using the TWAIN software, make sure you select the Quality & De-screening setting.

What should I do if vertical lines are missing from the final image?

Make sure the glass on the document table is clean. See "Cleaning the EPSON Stylus Scan" on page 132 of your user's manual for cleaning instructions. Make sure your original is not wrinkled. Note: For other image quality problems when you're copying, see "Solving Print Quality Problems" beginning on page 144 of your user's manual.

What should I do if the image is faint or out of focus?

Make sure the original document is placed flat on the document table. Check the condition of your original. If the document is damaged, dirty, or wrinkled, these imperfections will show up in your scan or copy. Adjust the Gamma and Exposure settings in your EPSON TWAIN software.

What should I do if straight lines in the image appear jagged?

Make sure the edges of your original document are carefully aligned with the scales on the sides of the document table.

What should I do if if the edges of the document are not scanned or copied?

Check the position of your original document. Adjust your document's position so that the image is within the glass area.

How do I uninstall the Stylus Scan software using Windows with a USB Connection?

1. Click Start, Programs, EPSON Smart Panel, Uninstall EPSON Smart Panel. Then follow the instructions on the screen.
2. Double-click the My Computer icon, then double-click the Control Panel icon.
3. Double-click the Scanners and Cameras icon, select EPSON Stylus Scan 2500, click Remove, then click OK.
4. Double-click Add/Remove Programs, select EPSON Printer Software, then click Add/Remove.
5. Select the EPSON Stylus Scan 2500 printer icon and click OK. Then follow the instructions on the screen.
6. After uninstall is complete, select EPSON USB Printer Devices, click Add/Remove, then follow the instructions on the screen. Your computer restarts automatically.

To reinstall your software, follow the instructions on your Start Here sheet.

How do I uninstall the Stylus Scan software using Windows with a Parallel Connection?

1. Click Start, Programs, EPSON Smart Panel, Uninstall EPSON Smart Panel. Then follow the instructions on the screen.
2. To uninstall the parallel scanner driver, click Start, Programs, EPSON Stylus Scan, Uninstall EPSON Stylus Scan FB TWAIN. Then follow the instructions on the screen.
3. Double-click My Computer, then double-click the Control Panel icon.
4. Double-click Add/Remove Programs, select EPSON Printer Software, then click Add/Remove.
5. Select the EPSON Stylus Scan 2500 printer icon and click OK. Then follow the instructions on the screen.
6. After uninstall is complete, restart your computer.

To reinstall your software, follow the instructions on your Start Here sheet.

How do I uninstall the Stylus Scan software on a Macintosh?

1. Insert your EPSON Stylus Scan 2500 CD-ROM in your drive.
2. Double-click the EPSON SS2500 CD-ROM icon.
3. Double-click the EPSON Stylus Scan Drivers icon, then double-click the EPSON Stylus Scan 2500 installer icon.
4. Click the arrow next to Easy Install and select Remove.
5. Click the Remove button at the bottom of the window.

To reinstall your software, follow the instructions on your Start Here sheet.

Where can I find all the software that is supposed to come with the EPSON Stylus Scan?

The software is on the two CD's that come with the EPSON Stylus Scan. One CD contains PhotoDeluxe for Mac and PC. The second CD contains Smart Panel (PC only), WinFax (PC), Adobe Acrobat, Presto Page Manager (Mac) and drivers for the Mac and PC.

Where can I find the manuals for my EPSON Stylus Scan.

Several of the software programs that came with your EPSON Stylus Scan 2500 include electronic manuals in the Adobe Acrobat PDF format. You'll find manuals for WinFax or Presto! PageManager for EPSON (Macintosh). You can also view the Getting Started Guide for Adobe PhotoDeluxe on the PhotoDeluxe CD-ROM. See page 8 of your user's manual for instructions on reading your Acrobat manuals.

Your EPSON Stylus Scan software CD-ROM includes the following manuals:

• Adobe PhotoDeluxe Business Edition 1.1
• Adobe PhotoDeluxe 2.0 User's Guide
• Quick Help program for Macintosh (GetStart.pdf)
• NewSoft Presto! PageManager User's Guide for Macintosh (User's Guide.pdf)
• WinFax for Windows (wfxbug9.pdf)
• On-line Reference Guide for Mac and PC

The Operate light does not come on.

Make sure the power cable is correctly plugged into the EPSON Stylus Scan and the power outlet. Make sure the outlet is operational and is not connected to a timer or switch.

My system doesn't recognize the USB port (Windows 98 only).

The USB interface is not supported by Windows 95 (including OSR-2.x) or Windows NT. You must have Windows 98 (full installation only). The EPSON Stylus Scan must be connected to a built-in (root) hub or first tier hub only. If the EPSON Stylus Scan is attached to a built-in root hub and isn't recognized, check the computer's user manual and to see if the USB port needs to be enabled in the computer's setup. If the EPSON Stylus Scan is attached to a first tier hub, that hub must be self-powered (ie: an AC adapter should be attached).