HP OfficeJet 3831 Multifunction Printer – Instant Ink Free Trial

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Identifiers
Model HP K7V45B
MPN HP K7V45B
Dimensions / Weight
Key Features
AC input frequency
The frequency of the alternating current supplied to a power supply or charger, expressed in hertz (Hz). It indicates the acceptable operating range for the electrical mains that powers the device, ensuring proper functionality and safety.
50/60
All-In-One-multitasking
Indicates whether a product offers multiple core functions—such as printing, scanning, copying, and faxing—in a single device. A value of "Yes" means the product can perform all these tasks; "No" indicates it is limited to one or fewer functions.
No
Bluetooth No
Built-in processor
Indicates whether the product contains a built‑in central processing unit (CPU) that can execute instructions without requiring an external processor module. A value of "Yes" means the device has such a CPU; "No" means it does not.
Yes
Card reader integrated
Indicates whether the device includes a built‑in card reader that can read removable memory cards such as SD, microSD, MMC or similar formats.
No
Copying
Indicates whether the device can perform copy functions and the type of copying it supports (e.g., colour or monochrome). The value is a free‑text label that describes the copying feature available on the product.
Colour copying
Depth
The linear measurement of an object from front to back or top to bottom, expressed in a physical unit such as millimeters, centimeters, inches, etc. It indicates how deep the item is and can be used for fitting, compatibility, or spatial planning.
364 mm
Direct printing
Indicates whether the device can print directly from mobile devices, network shares or other sources without requiring additional drivers or software installation. A value of "Yes" means the printer supports direct printing technologies such as AirPrint, Mopria Print Service, or similar solutions; a value of "No" indicates that direct printing is not supported.
Yes
Display diagonal 2.2"
Document formats supported
A list of file formats that the product can open, view or print, such as PDF, DOCX, TXT, XPS and other common office or text documents. Each value represents a distinct format supported by the device’s software or firmware.
PDF
Duplex printing modes
A list of the available duplex printing options for a device, such as automatic or manual mode. Each value indicates how the printer handles double‑sided pages when a job is sent.
Manual
Energy Star certified Yes
Envelopes sizes
A list of envelope sizes that a product can accept, expressed with standard codes or names (e.g., "DL", "C5", "10"), optionally combined in comma‑separated groups to indicate compatible envelopes.
DL
Ethernet LAN
Indicates whether the product includes an Ethernet LAN interface for wired network connectivity, allowing data transmission over RJ‑45 or compatible cables.
No
Fax Memory
The amount of memory available for storing fax documents, expressed either as a number of pages or as a digital storage size (e.g., megabytes). It indicates how many faxes can be queued or archived before the device requires clearing or additional storage.
50 pages
Fax resolution B / W
The pixel dimensions of a fax machine’s display or output, expressed as width by height (e.g., 300 x 300 DPI). It indicates how many pixels are used to render the visual content and is commonly applied to fax machines, printers, and multifunction devices.
300 x 300 DPI
Faxing Colour faxing
Height
The vertical dimension of a product measured from its lowest to highest point. It is expressed in a physical unit such as millimetres, centimetres or inches and applies to any item where height is relevant, including books, electronics, furniture and other objects.
224.4 mm
Image formats supported
A list of the file extensions and codecs that a product can read, display, or record. Each value represents a valid format such as JPG, PNG, BMP, GIF, HEIF, WebP, RAW, etc., and may include both the extension and the associated codec name.
BMP,GIF,JPG,PNG,TIF
Input colour depth
The number of distinct colours that a device can capture or process from an input source, expressed as an integer value such as "48 bit" or "24 bit". This metric indicates the richness and fidelity of colour reproduction for scanned images or captured media.
24 bit
Internal memory
The total amount of internal memory available in a device, expressed as a data size such as megabytes (MB) or gigabytes (GB). It indicates how much information the component can hold for active processes and affects multitasking performance.
512 MB
Internal storage capacity
The total amount of digital storage available inside a device for holding files, applications and other data. It is expressed as a numeric value with an appropriate unit such as GB, MB or TB, allowing users to compare how much information the device can store.
0.128 GB
ISO A-series sizes A4,A6
ISO B-series
The largest standard ISO B-series paper format that a device can handle, expressed as an ISO code (e.g., "B0", "B1", …, "B5"). This attribute indicates the maximum sheet size supported by printers, scanners, copiers, and similar equipment.
B5
Mac operating systems supported
A list of macOS operating system versions that the product supports or is compatible with, such as "macOS 10.15 Catalina", "macOS 11 Big Sur" or newer releases. Each entry represents a distinct OS version that can run on or be supported by the device.
Mac OS X 10.10 Yosemite,Mac OS X 10.8 Mountain Lion,Mac OS X 10.9 Mavericks
Market positioning
A classification that indicates the target audience or use case for a product, such as Business, Gaming, Home & Office, Education, etc. It helps customers quickly identify which products are best suited to their needs.
Home & office
Maximum Copy Resolution
The highest pixel resolution that a printer can produce, expressed as width by height (e.g., 600x1200). It indicates the finest detail achievable in printed documents and images.
600 x 300 DPI
Maximum duty cycle
The maximum number of pages a printer, copier or fax machine is designed to handle in a typical month of operation. It indicates the expected workload capacity and helps users compare how heavily different models can be used before reaching their limits.
1000 pages per month
Maximum ISO A-series paper size A4
Maximum resolution
The highest pixel dimensions that a device can output or support, expressed as width by height (e.g., 1920x1080). It indicates the maximum resolution available for display content on the product.
1200x1200
Maximum scan area
The largest document dimension that a scanner can capture in a single pass, expressed as width by height in pixels or physical units such as millimeters or inches. This value indicates the maximum size of material that can be processed without trimming.
216 x 279 mm
Number of print cartridges
The total count of individual cartridge units included in the product package or supplied with the device. It represents how many separate cartridges—such as ink, toner, filter, or other consumable cartridges—are available for use or replacement.
2
Operating relative humidity
The range of relative humidity (in percentage) within which the product is designed to operate reliably. Values are expressed as a minimum–maximum interval such as "20 - 80 %" and indicate the acceptable environmental moisture level for optimal performance.
5 - 90 %
Power consumption (off) 0.1 W
Power consumption average operating
The typical electrical power drawn by a device while it is in normal operation, expressed in watts (W). It represents the average energy consumption during use and can be used to estimate operating costs or compare efficiency across similar products.
10 W
Power consumption powersave
The electrical power drawn by a device while it is in powersave mode, expressed in watts (W). It represents the minimal energy usage when the product is powered on but not actively performing tasks, and can be used to estimate idle consumption or compare efficiency across similar products.
2.83 W
Power consumption sleep 1.17 W
Print resolution colour
The highest pixel density that a printer can produce, expressed as dots per inch in the format width×height DPI (e.g., 4800x1200 dpi). It indicates the maximum detail level achievable when printing images or text and is useful for comparing print quality across models.
4800 x 1200 DPI
Print speed black normal quality A4/US Letter 8 ppm
Print speed colour normal quality A4/US Letter
The maximum number of pages a printer can produce per minute when printing in color, expressed as pages per minute (ppm). This metric indicates how quickly the device can complete color documents and is useful for comparing throughput across models.
6 ppm
Print technology Thermal inkjet
Printing
Indicates whether the printer can produce colour output or is limited to monochrome (black‑and‑white) printing. Typical values are "Colour printing" for devices that support full colour, "Mono printing" for black‑only devices, and "No" when colour capability is not available.
Colour printing
Processor frequency
The fundamental operating frequency of a processor, expressed in hertz (Hz). It indicates the speed at which the CPU runs under normal conditions and is typically reported in gigahertz (GHz) or megahertz (MHz). This value helps users compare performance potential across different models.
180 MHz
Scan to
A list of destinations or methods to which a device can send scanned documents, such as email, FTP, cloud services, USB storage, or local PC. Each option represents a supported transfer protocol or target location for the scanned output.
PC
Scanner type
The functional configuration of a scanner, indicating how documents are fed into the device. Common types include flatbed scanners with automatic document feeders (ADF), sheet‑fed scanners, single‑pass or dual‑pass ADFs, and specialized modes such as 1D/2D barcode readers. This attribute helps users understand whether the scanner can handle single pages, multiple pages automatically, or specific scanning formats.
Flatbed & ADF
Scanning
Indicates whether the product can perform scanning operations and what type of scans it supports (e.g., color or monochrome). The value is a free‑text label that may include terms such as "Color scanning", "Mono scanning" or simply "Yes/No" to denote availability.
Colour scanning
Standard input capacity
The maximum number of paper sheets that a device can accept in a single feeding cycle, expressed as an integer value without units. This attribute helps users compare how many pages a printer, copier or scanner can process before needing to be refilled.
60 sheets
Standard interfaces
A list of the physical or logical interfaces that a device can use to connect with other devices, such as USB, Ethernet, Bluetooth, Wi‑Fi, RS‑232, RJ‑45, Parallel, and similar standards.
USB
Standard output capacity
The maximum number of paper sheets a device can process—print, copy or scan—in a single standard output cycle. This value indicates the capacity of the input tray or feeder and helps users compare how much material each model can handle before needing to reload.
25 sheets
Standard tray media types
A list of paper, envelope, label, and other printable media that a device can accept for printing, copying or scanning. Each entry is a free‑text name such as "Plain paper", "Glossy paper" or "Envelope". The list may include multiple items separated by commas.
Envelopes, Photo paper, Plain paper
Storage relative humidity
The range of relative humidity (expressed as a percentage) within which the storage device is designed to operate reliably. Values are given as a minimum–maximum interval such as "10 - 90 %" and indicate the acceptable environmental moisture level for optimal performance.
20 - 80%
Weight
The mass of the product expressed in a standard unit such as grams or kilograms. It represents how heavy the item is and can be used for shipping calculations, handling instructions, or consumer information.
5.61 kg
Wi-Fi
Indicates whether the product has built‑in Wi‑Fi capability, allowing it to connect to wireless networks without requiring external adapters or dongles.
Yes
Wi-Fi standards
A list of the wireless networking protocols and frequency bands that a device can connect to, such as 802.11a, 802.11b, 802.11g, Wi‑Fi 4 (802.11n), Wi‑Fi 5 (802.11ac) or Wi‑Fi 6 (802.11ax). The values are typically separated by commas and may include both the technical name and a consumer‑friendly label.
IEEE 802.11b,IEEE 802.11g,IEEE 802.11n
Width
The horizontal measurement of a product, expressed in a linear unit such as millimetres or inches. It indicates how wide the item is from one side to the other and is used for sizing, fitting, and compatibility purposes.
450 mm
HP

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