OKI B721DN A4 Monochrome LED Laser Printer with USB and Network Duplex Functionality

Oki (5031713060031 / 01334001) - AC input frequency: 50/60 Hz - Processor frequency: 800 MHz - AC input voltage: 220 - 240 V - Duplex media weight: 64 - 220 g/m² - Multi-Purpose Tray media weight: 64 - 253 g/m² | Paper Tray

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OKI B721DN A4 Monochrome LED Laser Printer

The OKI B721DN is a high‑performance, monochrome LED laser printer engineered for demanding office environments that require reliable, fast, and efficient printing. With its advanced LED technology, robust build quality, and comprehensive connectivity options, this model delivers crisp text output while maintaining low operating costs.

Key Technical Specifications

Print Technology: LED laser
Maximum Resolution: 1200 x 1200 DPI
Print Speed: 47 pages per minute (ppm) in black, normal quality on A4/US Letter
Duty Cycle: Up to 20,000 pages per month
Power Consumption: 800 W during printing; 1400 W maximum; 19 W power‑save mode; 1.5 W standby
Processor: 800 MHz CPU
Internal Memory: 256 MB (expandable to 768 MB)
Operating Temperature: 0–45 °C; Relative humidity 10–90%
Noise Level: 55 dB during printing, 53 dB in quiet mode
Dimensions (W x D x H): 435 mm × 798 mm × 410 mm
Weight: 27 kg

Paper Handling and Media Support

Standard Input Capacity: 530 sheets (plain paper)
Total Input Capacity: 530 sheets
Multi‑Purpose Tray: 100‑sheet capacity, supports envelopes and media weights from 64 g/m² to 253 g/m²
Plain Paper Tray: Supports media weight 64–220 g/m²
Duplex Printing: Yes; duplex media weight range 64–220 g/m²
Maximum Output Capacity: 500 sheets per tray

Connectivity and Interface Options

Standard Interfaces: Ethernet LAN (10/100 Mbps), USB 2.0 (two ports)
Supported Network Protocols: TCP, SMTP, HTTP, HTTPS, SNMPv1/v3, DHCP, DNS, IPP/IPPS, BOOTP, DDNS, WINS, UPnP, SNTP, IGMP/IGMPv2, ICMP, IMCPv6, LPR, Port 9100, FTP, Telnet, Bonjour, LLTD
Operating System Compatibility: Windows, macOS, Linux (supports major distributions)
Page Description Languages: PCXL, Epson FX, IBM ProPrinter, Microsoft XPS, PCL 5e, PostScript 3
Built‑in Display: Yes – facilitates direct configuration and status monitoring

Energy Efficiency and Certifications

Energy Star Certified: Yes – meets stringent energy efficiency standards
Power‑Save Features: Automatic sleep mode, reduced standby power (1.5 W), and efficient printing power consumption (800 W)
Certifications: CE, GS

Operational Highlights

Warm‑up Time: 25 seconds to first page in black, normal quality
Time to First Page: 5 seconds (black, normal quality)
Noise Level Quiet Mode: 53 dB – suitable for quiet office environments
Maximum Power Consumption: 1400 W – ensures reliable operation under heavy workloads

Design and Build Quality

The OKI B721DN features a robust chassis that accommodates high‑volume printing while maintaining a compact footprint. Its LED laser technology offers superior print quality with reduced maintenance compared to traditional laser systems, as there are no moving parts such as toner cartridges or fuser rollers that require frequent replacement.

Ideal Use Cases

Small to medium‑sized offices requiring high‑speed, high‑volume monochrome printing
Departments handling large volumes of text documents (legal, financial, administrative)
Environments where energy efficiency and low operating costs are critical
Workflows that demand reliable duplex printing and versatile media handling

Conclusion

The OKI B721DN A4 Monochrome LED Laser Printer stands out as a dependable, high‑performance solution for businesses that prioritize speed, quality, and efficiency. Its comprehensive feature set—ranging from advanced connectivity to robust media handling—ensures seamless integration into diverse office ecosystems while delivering crisp, professional output at every turn.

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Category This product is cataloged in our store in these categories	- Laser Printers
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Colors Predominant colors of the product
Tags	OKI B721dn DPI A4 Mono LED Laser 1334001 UK
Identifiers
Brand	Oki is a Japanese brand that produces printers, copiers, and fax machines. The company has a wide range of products for both personal and business use, and its printers are known for their quality and reliability. Oki also offers a number of software applications for managing and printing documents.
Model	Oki 01334001
MPN	Oki 01334001
ID	4451457
Dimensions / Weight
Key Features
AC input frequency The frequency of the alternating current supplied to the device, expressed in hertz (Hz). It indicates the acceptable operating range for the electrical mains that powers the product.	50/60 Hz
AC input voltage The alternating current voltage range that the product accepts from its power source, expressed in volts (V). It indicates the minimum and maximum supply voltages compatible with the device.	220 - 240 V
Built-in display Indicates whether the product includes a built‑in screen or display unit that can be used directly for viewing content, such as an integrated monitor on a laptop or a built-in display on appliances. A value of "Yes" means the device has such a display; a value of "No" means it does not.	Yes
Certification A list of official certifications or compliance marks that the product has received from regulatory bodies, safety organizations, or industry standards groups. Each entry represents a distinct certification such as CE, FCC, RoHS, UL, or WEEE, and may include additional details like version numbers or specific test reports.	CE, GS
Colour The colour or combination of colours that a product is available in, expressed as common names such as "Black", "Silver" or comma‑separated lists like "Black, White". It indicates the visual appearance of the item for consumers.	Grey,White
Colours A colour is a visual attribute that describes the hue or shade of an object or surface. It can be a single dominant colour, a combination of colours, or a range such as "Black, White". The value may be expressed in common names (e.g., Black, Silver) or descriptive terms (e.g., One Colour, Assorted).	No
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.	798 mm
Duplex media weight The weight of paper or other media that is suitable for duplex printing, expressed as a range in grams per square meter (g/m²). This attribute indicates the acceptable thickness and density of sheets that can be fed through a device to achieve reliable double‑sided output.	64 - 220 g/m²
Duplex printing Indicates whether the device can automatically print on both sides of a sheet in a single pass. A value of "Yes" means duplex printing is supported; a value of "No" indicates that only single‑sided printing is available.	Yes
Energy Star certified	Yes
Ethernet LAN Indicates whether the product includes an Ethernet LAN interface for wired network connectivity, allowing data transmission over RJ‑45 or compatible cables.	Yes
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.	410 mm
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.	256 MB
ISO A-series sizes	A4,A5
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
Linux operating systems supported List of Linux operating systems that the product can run or support, including specific versions and architectures when relevant. Each value represents a distinct Linux distribution or kernel version supported by the hardware or software.	Yes
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.	Yes
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.	20000 pages per month
Maximum input capacity The maximum number of sheets or pages that a printer, copier, or fax machine can accept in a single feeding cycle. It indicates the largest input tray capacity and helps users understand how many pages can be processed automatically before needing to reload paper.	3160 sheets
Maximum internal memory The largest amount of internal random‑access memory that a device can support, expressed as a data size such as megabytes or gigabytes. It indicates the maximum capacity for active processes and multitasking performance.	768 MB
Maximum ISO A-series paper size The largest standard ISO A-series paper format that a device can handle, expressed as the ISO code (e.g., "A4", "A3"). This attribute indicates the maximum sheet size supported by printers, scanners, copiers, and similar equipment.	A4
Maximum output capacity The highest number of sheets a printer, copier or fax machine can process in a single operation cycle, such as printing, copying or scanning. This figure indicates the device’s throughput capability and helps users compare productivity across models.	500 sheets
Maximum power consumption The highest electrical power that a device can draw or consume during operation, expressed in watts (W). It represents the peak energy usage of the product and is useful for estimating maximum power requirements, comparing efficiency across similar devices, and ensuring compatibility with power supplies.	1400 W
Maximum resolution The maximum pixel dimensions of a display or image, expressed as width by height (e.g., 1920x1080). It indicates the highest resolution that a device can output or support and is commonly used for monitors, TVs, smartphones, cameras, and digital images.	1200 x 1200 DPI
Multi-Purpose tray The maximum number of paper sheets that a multi-purpose tray can hold for automatic feeding. This value indicates how many pages the device can process before needing to be reloaded, helping users compare throughput and convenience across models.	Yes
Multi-Purpose Tray capacity The maximum number of paper sheets that a multi‑purpose tray can hold in a single feeding cycle. This value indicates the input capacity of printers or copiers, helping users compare how many pages can be processed before needing to reload or replace the tray.	100 sheets
Multi-purpose tray media types A list of paper or media types that a printer’s multipurpose tray can accept, such as envelopes, labels, plain paper, recycled paper, transparencies, and other compatible materials. The values are free‑text strings separated by commas, allowing users to see which materials the tray supports.	Envelopes
Multi-Purpose Tray media weight The weight of the paper or media that can be placed in a multipurpose tray, expressed as grams per square meter (g/m²). This value indicates how dense the material is and helps users compare the quality or thickness of different papers used in printers, copiers, and similar devices.	64 - 253 g/m²
Noise level quiet mode The sound intensity produced by a product while operating in its quiet or low‑noise mode, expressed in decibels (dB). This value helps users assess how quietly the device runs during normal use and compare models for noise‑sensitive environments.	53 dB
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.	-10 - 43%
Paper tray media types A list of the paper or media types that a printer’s input trays can accept, such as envelopes, labels, plain paper, recycled paper, and transparencies. The values are free‑text strings separated by commas, allowing users to see which materials are compatible with the device.	Plain paper
Power consumption	800 W
Power consumption (off)	1.5 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.	19 W
Print speed black normal quality A4/US Letter	47 ppm
Print technology The type of printing process or technology used by the product, such as laser, inkjet, thermal, LED, or other specialized methods.	Laser
Printing colours A list of the colours that a product can print or produce, such as black, cyan, magenta, yellow and any additional colour variations (e.g., photo‑black, matte black). The value is a comma‑separated string of colour names. This attribute applies to printers, ink cartridges, toner cartridges, and other printing consumables.	Black
Printing noise level The sound intensity produced by a printer while it is operating, expressed in decibels (dB). This value helps users assess how quiet the device will be in office or home environments.	55 dB
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.	530 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.	Ethernet,USB 2.0
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.	10 - 90%
USB 2.0 ports quantity Represents the count of external USB 2.0 (high‑speed) connectors available on a device. The value is an integer indicating how many USB 2.0 ports can be used for data transfer or power delivery from the outside of the product, regardless of internal placement or version.	2
Warm-up time	25 s
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.	27 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.	No
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.	435 mm
Windows operating systems supported A list of Microsoft Windows operating system versions that the product is compatible with, including any relevant architecture or edition information.	Yes