Brother Industries

Brother International GmbH

Brother Nordic

Brother International Limited

How many pixels a scanner can see. Most commonly, this is measured in dots per inch (dpi).For example, a typical flatbed scanner will use a scanning head with 300 sensors per inch, so it can sample 300 dots per inch (dpi) in one direction. To scan in the other direction, it will move the scanning head along the page, stopping 300 times per inch, so it can scan 300 dpi in the other direction as well. This scanner would have an optical resolution of 300 x 300 dpi. Some manufacturers stop the scanning head more frequently as it moves down the page, so their machines have resolutions of 300 x 600 dpi or 300x1200 dpi.

Optical scanning resolution

Indicates whether this product scans in colour.

Colour scanning

Feature of computer scanners and multifunction printers (MFPs) that allows the automatic scanning of a sheet of paper on both sides.

Duplex scanning

Colour depth of the input into the product. The colour depth is either the number of bits used to indicate the color of a single pixel, in a bitmapped image or video frame buffer, or the number of bits used for each color component of a single pixel. High-end laptops have 24-bit colour depth.

Input colour depth

The number of bits used to represent the colour of a single pixel in the output, which determines the total number of possible colours (e.g., 24 or 32).

Output colour depth

The number of bits used to represent each pixel in a greyscale image, which determines the number of available shades of grey (e.g. 8 or 24).

Output greyscale depth

The number of black and white A4 pages the automatic document feeder can scan per minute, measured in ppm.

ADF scan speed (b/w, A4)

The number of A4 colour pages the automatic document feeder can scan per minute, measured in ppm.

ADF scan speed (colour, A4)

The number of black and white A4 pages the automatic document feeder can scan per minute when scanning both sides of the page, measured in ipm.

Duplex ADF scan speed (b/w, A4)

The number of images per minute the device can scan in colour on both sides of an A4 page using the automatic document feeder, measured in ipm.

Duplex ADF scan speed (colour, A4)

Scanning

Indicates the type of scanner this product is.

Scanner type

The colour e.g. red, blue, green, black, white.

Product colour

Size of the display for this product, measured diagonally, usually in inches.

Display diagonal

A screen of a laptop, smartphone, etc., that responds to touch so you can control the interface using your fingers.

Touchscreen

Indicates whether the device is equipped with a screen capable of displaying multiple colours.

Colour display

The way in which the device is controlled.

Control type

A display which is part of the product, so you do not need to attach another display.

Built-in display

Design

A sensor is a convertor than measures a physical quality (light, temperature etc.) and displays this electronically on a device.

Sensor type

The digital file types in which the device can save scanned documents (e.g. BMP, DOCX, EPS).

Scan file formats

The maximum percentage of time a machine or piece of equipment can be in operation for in one day in relation to the time it must remain out of operation. For instance, a max daily duty cycle of 30 percent means it will operate for a maximum 30 percent of the day and then not be used for the other 70 percent of the day.

Daily duty cycle (max)

The maximum number of prints/copies made by a printer/copier in a fixed period.

Maximum duty cycle

Specifies the available destinations where scanned documents can be sent, such as a cloud service, e-mail address, or network folder (e.g., FTP or CIFS).

Scan to

The scanning interfaces and software protocols supported by the device for communication with computer applications (e.g. TWAIN, WIA).

Scan drivers

The maximum acoustic energy emitted by the device, measured in decibels (dB).

Sound pressure level (max)

Performance

Number of sheets this product can hold in its ADF tray; expressed in sheets

Auto document feeder (ADF) input capacity

Input capacity

Specifies the various types of materials that can be processed by the device, such as plain paper, photo paper, or plastic cards.

Scanning media types supported

Indicates whether the device supports a specialized scanning mode for documents that exceed the standard page length.

Long-paper mode

Different sizes of paper from A0 (big) to A9 (small). A4 is the most common size used for printing documents.

ISO A-series sizes (A0...A9)

The maximum thickness of the card that the device can process, measured in millimetres.

Card thickness (max)

The minimum and maximum weight of media that can be processed by the automatic document feeder, measured in grams per square metre (g/m²).

Auto Document Feeder (ADF) media weight

Paper handling

The device features a socket into which a USB cable can be plugged.

USB port

Universal Serial Bus (USB) is an industry standard developed in the mid-1990s that defines the interface used for connection, communication and power supply between computers and electronic devices. Every new version - for example 1.1, 2.0, 3.0 - is much faster than the previous one.

USB version

Ports & interfaces

Popular technology that allows an electronic device to exchange data or connect to the internet wirelessly using radio waves.

Wi-Fi

An Ethernet LAN (Local Area Network) interface is present, for a wired conection via a cable.

Ethernet LAN

Security algorithms are used to provide authentication, cipher key generation, integrity and radio link privacy to users on mobile networks. The security algorithms supported are the ones that can be used with this product.

Security algorithms

Apps etc. which allow users to send a print job from a smartphone or tablet to a printer via a wireless network.

Mobile printing technologies

Indicates the specific versions or configurations of the Internet Protocol version 6 that the device is compatible with for network communication.

Supported network protocols (IPv6)

Indicates whether the device supports a peer-to-peer connection with another Wi-Fi enabled device without requiring a wireless access point.

Wi-Fi Direct

The specific Internet Protocol version 4 standards and communication rules the device uses to connect and communicate over a network.

Supported network protocols (IPv4)

Indicates whether the device supports the Internet Protocol version 6 for network connectivity.

IPv6 support

Network

The type of power supply which this product uses.

Power supply type

Amount of power consumed by this model, often expressed in watts (W). Typical values that manufacturers give are power consumption when off, standby/suspended mode, typical use, maximum usage.

Power consumption (typical)

The amount of electricity that is consumed when the product is on standby.

Power consumption (standby)

The amount of electrical energy consumed by the device when it is switched off, measured in watts.

Power consumption (off)

The range of alternating current frequencies the device can accept from the power source, measured in hertz (e.g., 45 - 65).

AC input frequency

The voltage (V) which is required to power the product.

Input voltage

The amount of electrical energy consumed by the device when it is in sleep mode, typically measured in watts (W).

Power consumption (sleep)

The electrical potential difference delivered by the device, typically expressed in volts (e.g. 24-48).

Output voltage

The maximum electrical current that the device can provide to a connected load, measured in amperes (A).

Output current

The device switches itself off automatically after a certain activity, or after a certain time of inactivity.

Auto power off

Power

The measurement or extent of something from side to side.

Width

The distance from the front to the back of something.

Depth

The measurement of the product from head to foot or from base to top.

Height

Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.

Weight

The measurement of the product's width when it is collapsed or folded, typically expressed in millimetres or centimetres.

Folded width

The measurement of the product's depth when it is collapsed or folded, typically expressed in millimetres or centimetres.

Folded depth

The vertical measurement of the product when it is collapsed or folded, typically measured in millimetres or centimetres.

Folded height

Weight & dimensions

The number of individual units contained within a single sales package, measured in pc(s).

Quantity per pack

The distance from one side of the packaging to the other.

Package width

The distance from the front to the back of the packaging.

Package depth

The distance from the top to the bottom of the packaging.

Package height

Package weight

Packaging data

Indicates whether a physical warranty card is included with the product.

Warranty card

Specifies the types and quantities of connection cables provided with the product (e.g., 3.5 mm to 3.5 mm or SATA).

Cables included

Instructions, either online, as a computer program or in paper form, to allow you to set up and start using the product quickly.

Quick start guide

Indicates whether a power supply unit for connecting the device to an AC outlet is provided in the package.

AC adapter included

Indicates whether the device features a paper chute for the automatic document feeder to collect scanned pages.

ADF paper chute

Packaging content

Windows vesions wich can be used with the device.

Windows operating systems supported

Mac operating systems e.g. OS X can be used with the device.

Mac operating systems supported

8 RT. Linux (9.4, 9.5), Red Hat Enterprise Linux 5.0 (supported with a pre-built package); SUSE Linux (10.3, 11.0, 11, 11.1, 11.2), Fedora (9, 9.0, 10, 10.0, 11.0, 11, 12, 12.0), Ubuntu (8.04, 8.04.1, 8.04.2, 8.10, 9.04, 9.10, 10.04), Debian (5.0, 5.0.1, 5.0.2, 5.0.3)

Linux operating systems supported

The server-grade operating systems that are compatible with the product (e.g. SUSE Linux Enterprise Server or Windows Server).

Server operating systems supported

System requirements

The minimum and maximum temperatures at which the product can be safely operated.

Operating temperature (T-T)

The minimum and maximum temperatures at which the product can be safely stored.

Storage temperature (T-T)

The range of relative humidity, expressed as a percentage, within which the device can function correctly without damage or performance loss.

Operating relative humidity (H-H)

The permissible range of relative humidity, expressed as a percentage, within which the product can be stored without damage.

Storage relative humidity (H-H)

Operational conditions

Holes on the edge of devices through which a cable lock can be passed, so the device can be locked to a desk etc.

Cable lock slot

The highest level of detail the device can capture during a scan, measured in dots per inch (dpi).

Maximum scan resolution

The range of non-standard paper widths that the device can process, measured in millimetres.

Custom media width

The maximum length of the media that the device can process in a single pass, typically measured in millimetres.

Maximum media length

The width, depth, and height of the unit in its folded or closed state, measured in mm.

Product dimensions when closed (WxDxH)

Indicates which regulatory, safety, and environmental standards the product complies with, as verified by recognized authorities or certification bodies.

Compliance certificates

Other features

ADS-4550W

Brother ADS-4550W scanner ADF scanner 600 x 600 DPI Black, White

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