EPSON Perfection 640U
Maximum hardware resolution*

Scanner Parts

Start button indicator light document cover
600 dpi (main scan) 2400 dpi (sub scan)

Copy button Scan button

The maximum hardware resolution of dpi is achieved using EPSONs Micro Step Drive technology.
Maximum interpolated resolution Speed (600 dpi, draft mode) Command level Zoom Pixel depth
carriage (in the home position) document table
Color: 16 msec/line Greyscale: 5.3 msec/line
Output resolution 72 to 9600 dpi

ESC/I-D1

50 to 200% in 1% increments Color: 12 bits/pixel (input) 8 bits/pixel (output) 7 levels 1 bit/pixel
Brightness Line art settings
Digital halftoning Error diffusion: 3 modes (A, B, C) Dither (resident): 4 modes (A, B, C, D) Dither (user-defined): 2 modes (A, B) Gamma correction 1 type for user-defined Color correction Interface Light source Reliability 1 type for user-defined USB (Type B receptacle connector) White cold cathode fluorescent lamp 30,000 cycles of carriage movements (main unit MCBF) Width: 10.6 inches (26.9 cm) Depth: 17.1 inches (43.5 cm) Height: 3.7 inches (9.3 cm) Approx. 6.2 lb (2.8 kg)

USB interface connector

DC inlet

transportation lock

Dimensions

Scanner Specifications

Basic Specifications
Scanner type Photoelectric device Effective pixels Maximum document size Flatbed, color Color CCD line sensor pixels at 600 dpi, 100% scaling US letter or A4 size (8.5 11.7 inches [mm])

Weight Electrical

Specification Input voltage range Rated current Power consumption
DC 24 V 0.8 A Approx. 17 W
Check the label on the back of the scanner for voltage information.
Optical resolution 600 dpi
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Environmental

Temperature Humidity (without condensation) Operating conditions Operation: 41 to 95 F (5 to 35 C) Storage: 13 to 140 F (25 to 60 C) Operation: 10% to 80% Storage: 10% to 85% Ordinary office or home conditions; avoid extreme dust, direct sunlight, and strong light sources. Make sure the outlet provides enough power.

USB Interface

Interface type Configuration
Element Configuration Description Characteristics: Self-powered Remote wake up feature: Not supported Maximum power consumption from VBUS: 2mA (5V) No alternate setting Number of endpoints used by this interface (excluding endpoint 0): 2 Class: Vendor specific Bulk IN transfer Maximum data transfer size: 64 byte Bulk OUT transfer Maximum data transfer size: 64 byte Language ID: US English 1: Manufacturer: EPSON 2: Product: Perfection 640U
Universal Serial Bus Specification Revision 1.1

Interface

Safety Approvals

Endpoint 1

120 V model Safety standards UL 1950 CSA C22.2 No. 950 EMC FCC part 15 subpart B class B CSA C108.8 class B
Endpoint 2 String Descriptor
230 V model Safety standards EN 60950 EMC EN 55022 (CISPR Pub 22) class B AS/NZS 3548 class B
Electrical standard Full Speed mode (12Mbit/s) of Universal Serial Bus Specification Revision 1.1 Connector type One receptacle (Type B)
CE marking 230 V model Low Voltage Directive 73/23/EEC EN 60950 EMC Directive 89/336/EEC EN 55022 Class B EN 50082-1 IEC 60801-2 IEC 60801-3 IEC 60801-4
Connector pin arrangement
Pin number Signal VCC Connector

+DATA GND

Initialization methods
Hardware initialization Software initialization
The scanner can be initialized (returned to a fixed set of conditions) in the following ways:
* The scanner is plugged in. * The USB cable is unplugged from the USB port on the scanner. * Software sends the ESC @ (initialize the scanner) command. * The scanner receives a Bus Reset from the USB interface.
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AC Adapter Specifications
Basic Specifications (Model A110B)
Temperature Dimensions Weight 5 to 35 C (41 to 95 F) 34 mm Approx. 250 g (without AC plug)
If you have a modem and e-mail service, you can send photos or documents that youve scanned.
Optical character recognition (OCR) converts a scanned text image into text that you can edit in a word processing program.

Electrical

Input voltage range Rated input current Rated output Rated frequency Input frequency range 100 to 120 V (AC 100 V MDL) 0.7 A (input AC 100 V) DC 24 V, 0.8 A 50 to 60 Hz 49.5 to 60.5 Hz
The control panel on your computer screen allows you to make copies of printed pages and photos. Automatically scans your image and then opens it in PhotoDeluxe, which guides you through steps to create a print project. Automatically scans your image and then opens it in any supported application program. Gives you an easy way to reprint your photos in any size you want.

Select EPSON Smart Panel or a Smart Panel application to use with the ] Start button.
3. Click the icon for your desired scanning application. The window for that option appears and lets you adjust settings for your scan. Follow the on-screen steps for each option.
If you select Copy or Photo Print, make sure your printer is turned on and the correct paper type and size is loaded in your printer. You can use Photo Print only with an EPSON Stylus Color or EPSON Stylus Photo printer.

Using EPSON Smart Panel

Follow these steps to use EPSON Smart Panel to scan your document or photo: 1. Place your original document(s) face down on the document table. 2. Do one of the following to open the Smart Panel: t Press the ] Start button on your scanner. t Click the Smart Panel icon on the Windows taskbar. t Open the Apple menu and select EPSON SMART PANEL.
The ] Start button is set to open the Smart Panel by default. However, you can assign the ] Start button to automatically open any of the Smart Panel operations.
For detailed instructions on using each of the Smart Panel applications, read your electronic manual for EPSON Smart Panel.
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Click Manual Mode to open the EPSON TWAIN L settings dialog box:
Select the resolution Select your image type

Using EPSON TWAIN

When you scan with EPSON TWAIN, you see the Automatic Scanning window.
If you want, you can let the TWAIN driver automatically scan your document. It detects what type of document youre scanning and automatically chooses the optimum settings for your scan. To scan in manual mode and adjust your scan settings, click Cancel. You see the following window:
Click to return to Full Auto Mode Preview your scan here
4. Make the changes you want to adjust the image, then click the Scan button. To switch back to Full Auto mode, click the Full Auto Mode button.
Depending on the image you want to scan, you may not get the expected scanned image. In this case, scan the image in Manual mode.
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Light and Buttons

The scanner has one indicator light and three buttons. Light status and button functions are described in the tables below.
Related Documentation and CD-ROMs
CPD-10852 EPSON Perfection 640U Scanner Basics Reference Guide (HTML) EPSON Smart Panel Users Manual (PDF)
indicator light Start button

TM-640/1240 PL-PERF640

EPSON Perfection 640U/1240U Service Manual EPSON Perfection 640U Parts List Scanner Software CD-ROM Adobe PhotoDeluxe CD-ROM

CPD-10853 CPD-10863

Scanner buttons
Button Function Lets you scan directly to EPSON Smart Panel or a Smart Panel application. Scan directly to the Copy utility in EPSON Smart Panel and print on your EPSON ink jet printer. Scan directly to Adobe PhotoDeluxe.

t Copy s Scan

Scanner indicator light

Light Flashing On On Color Green Green Red Status The scanner is initializing or busy scanning. The scanner is ready to scan images. The scanner has received incorrect commands from your scanning software. When this error occurs, try to rescan the document. 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 Red The scanner may not be properly connected to the computer. Unplug the scanner and USB connector, and then plug them back in. If this doesnt eliminate the error, one of the following may be the problem: t t The fluorescent lamp needs to be replaced. The scanner is malfunctioning.
Consult your dealer or EPSON. Off The scanner or AC adapter is unplugged.
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