EPSON Perfection 640U
Environmental
Temperature | Operation: 41 to 95 °F (5 to 35 °C) |
| Storage: |
Humidity | Operation: 10% to 80% |
(without | Storage: 10% to 85% |
condensation) |
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Operating | Ordinary office or home conditions; avoid |
conditions | extreme dust, direct sunlight, and strong |
| light sources. Make sure the outlet |
| provides enough power. |
Safety Approvals
120 V model |
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Safety standards | UL 1950 |
| CSA C22.2 No. 950 |
| EMC FCC part 15 subpart B class B |
| CSA C108.8 class B |
230 V model |
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Safety standards | EN 60950 |
| EMC EN 55022 (CISPR Pub 22) class B |
| AS/NZS 3548 class B |
CE marking |
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230 V model | Low Voltage Directive 73/23/EEC |
| EN 60950 |
| EMC Directive 89/336/EEC |
| EN 55022 Class B |
| EN |
| IEC |
| IEC |
| IEC |
USB Interface
Interface type |
| Universal Serial Bus Specification |
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| Revision 1.1 |
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Configuration |
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Element |
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| Description |
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Configuration |
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| Characteristics: |
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| Remote wake up feature: Not supported |
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| Maximum power consumption from VBUS: |
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| 2mA (5V) |
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Interface |
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| No alternate setting |
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| Number of endpoints used by this interface |
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| (excluding endpoint 0): 2 |
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| Class: Vendor specific |
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Endpoint 1 |
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| Bulk IN transfer |
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| Maximum data transfer size: 64 byte |
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Endpoint 2 |
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| Bulk OUT transfer |
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| Maximum data transfer size: 64 byte |
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String Descriptor |
| Language ID: US English |
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| 1: Manufacturer: “EPSON” |
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| 2: Product: “Perfection 640U” |
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Electrical standard Full Speed mode (12Mbit/s) of |
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| Universal Serial Bus Specification |
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| Revision 1.1 |
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Connector type |
| One receptacle (Type B) |
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Connector pin arrangement |
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Pin number |
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| Signal | Connector |
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1 |
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| VCC |
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2 |
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3 |
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| +DATA |
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4 |
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| GND |
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Initialization |
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| The scanner can be initialized (returned to |
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methods |
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| a fixed set of conditions) in the following |
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Hardware |
| * | The scanner is plugged in. |
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initialization |
| * | The USB cable is unplugged from the USB port |
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| on the scanner. |
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Software |
| * | Software sends the ESC @ (initialize the scanner) |
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initialization |
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| command. |
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| * The scanner receives a Bus Reset from the USB |
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| interface. |
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2 - EPSON Perfection 640U | 10/00 |