Support for DS-640

Name: DS-640 Compact Mobile Document Scanner
Uploaded: 2025-10-20T08:13:34+00:00
Description: Ultra-portable document scanner with USB power. Scan anywhere with ease - perfect for remote work and small spaces.

Scan

Cannot Scan (via USB / Parallel)

I updated my Windows 11 PC through Windows Update and I can no longer Print, Scan or Fax from my PC.

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Cannot Scan (via Mobile Device)

The error message "No Supported Devices Found" appears on the Brother iPrint&Scan (mobile device).

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Scan Quality Problem

When I set the Document Size setting to "Auto", the scanned image is missing, or areas are missing in the scanned data.

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General Scan Problem

The scanning speed is slow when scanning from my machine. (Windows)
When I set the Document Size setting to "Auto", the scanned image is missing, or areas are missing in the scanned data.

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Scan from Mobile Device

Printing/ Scanning with a mobile device

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Scan Settings / Management

Scan a document using Brother iPrint&Scan. (Windows, macOS)
(Video) Load Non-standard Size Document
Load Non-standard Size Document
Load Documents
(Video) Load a Plastic Card
(Video) Load Standard Size Document
(Video) Calibrate Your Brother Machine
Load Standard Size Document
Scan a document longer than 37.5 cm (14.76 inches).
I do not have or lost the black and white calibration sheet.
Calibrate Your Brother Machine
(Video) Calibrate Your Brother Machine
Load a Plastic Card

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Tips for Scanning

Acceptable Documents

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Other FAQs Category

A guide to navigating our most common questions