HP DesignJet T230 24″ Plotter Printer (5HB07A) is a compact large format printer designed for technical drawings and professional graphics. It supports color printing for A1 and 24-inch media sizes. HP DesignJet T230 24″ Plotter Printer focuses on simple large-format printing in small office spaces. In addition, it prints A1 drawings in as fast as 35 seconds. It also delivers up to 68 A1 prints per hour for faster workflows. Moreover, it supports up to 2400 × 1200 optimized dpi resolution for precise lines and clear details. Furthermore, it supports both roll feed and sheet feed with an automatic horizontal cutter. It also includes Wi-Fi, Ethernet, and USB connectivity for flexible printing setups. In addition, it works with HP Click software and HP Smart app for remote printing control. Finally, it uses HP Thermal Inkjet technology with dye-based color inks and pigment-based black ink. It includes 500 MB memory for handling large print jobs efficiently. HP DesignJet T230 24″ Plotter Printer delivers reliable large-format performance for CAD, GIS, and poster printing needs. Specifications: 24-inch large format color plotter printer Up to 35 seconds per A1 print speed Up to 2400 × 1200 optimized dpi resolution Roll feed and sheet feed with automatic cutter Wi-Fi, Ethernet, USB, HP Smart and HP Click support
Model Description Canon DR-C225 Type: Departmental Scanner Document size: A4/ A5 Scan Speed Color: 25 ppm – 50 ipm Feeder Capacity: 30 Sheets Scanning Modes: Grayscale, Black and White, Color, Error Diffusion, ATE (multiple modes) Simplex Duplex Scanning ID Card Scanning Output Res: up to 600 dpi Grayscale: 8-Bit Interface: Dual Interface (High Speed 2.0) 1 year warranty
Epson SIDM Black C13S015637BA Epson SIDM Black Ribbon Cartridge for LX-350+ Specifications: Specifications Epson SIDM Black Ribbon Cartridge for LX-350+
The Epson Expression 13000XL Pro Flatbed Scanner is a professional-grade solution for scanning large-format media with studio-level quality. It offers a generous flatbed size up to 12.2″ × 17.2″, ideal for photos, artwork, maps, and more. Also, it delivers high resolution—2,400 dpi optical, expandable to 4,800 dpi via Micro Step Drive—for sharp, detailed scans. Moreover, it provides 3.8 Dmax density and 48-bit color depth, ensuring rich tones and excellent contrast. Furthermore, Epson’s MatrixCCD and ReadyScan LED technologies capture vibrant, true-to-original color without warm-up delays. In addition, the scanner includes Easy Photo Fix, one-touch color restoration, and dust removal tools for old or faded images. It also supports batch scanning, boosting productivity by processing multiple originals in one go. Plus, users can add the optional transparency unit to scan film and slides up to 12″ × 16.5″, expanding versatility. Moreover, the Pro includes LaserSoft Imaging SilverFast AI software with calibration targets and multi-exposure features for professional editing. It offers USB 2.0 connectivity, works with both Mac and Windows, and comes with TWAIN drivers for wide software compatibility. The unit measures approximately 25.8″ × 18″ × 6.2″ and weighs 31.5 lb, built for desktop use in studios or archives. While it’s discontinued and succeeded by newer models, users still praise its image clarity and film scanning capability. For photo pros, artists, and archivists, this scanner delivers exceptional quality and versatility. Check other options here! Specifications: A3 graphics scanner : Professional results up to A3 format Superior quality : 2,400 x 4,800dpi resolution High precision : Micro Step Drive technology
BUEROTIKA Thermal Printer is a fast and reliable solution for printing receipts, labels, and tickets in retail and hospitality. It delivers clear, high-quality prints with minimal noise for a professional appearance. The printer supports standard receipt paper sizes and works with various POS systems. The BUEROTIKA Thermal Printer offers quick printing speeds, reducing customer wait times. It connects easily through USB or network interfaces for flexible installation options. Its compact design saves space on counters and workstations. The printer is easy to set up, allowing businesses to start printing immediately. The BUEROTIKA Thermal Printer is energy-efficient, consuming minimal power during operation. It supports multiple operating systems for broad compatibility with POS software. Durable construction ensures long-lasting performance even under heavy daily use. It produces sharp text and clear graphics for receipts and tickets. The printer reduces maintenance needs because it uses thermal printing technology. The BUEROTIKA Thermal Printer is ideal for restaurants, cafes, retail stores, and small businesses. It integrates seamlessly with cash drawers and POS systems for smooth workflow. Fast paper loading and easy access simplify day-to-day use. The printer supports auto-cutter options for quick receipt handling. Its lightweight design allows easy relocation if needed. The BUEROTIKA Thermal Printer enhances efficiency and customer satisfaction with reliable printing performance. It combines speed, quality, and simplicity in one professional device. Businesses can rely on this printer for accurate, consistent, and efficient printing every day. Specifications: Printer Type: Direct thermal Printing speed Max: 230mm/s Paper width: 83mm / Print width: 72mm Mechanism: 150km Auto cutter: 1.5 million cuts Interface: RJ11 + USB + Ethernet
Are you in search of a reliable printing solution for your business? Look no further than the Canon IR 2930i Mono printer. This multifunctional device combines high-quality printing, scanning, and copying capabilities in one compact unit. Equipped with advanced technology, the Canon IR 2930i delivers crisp and clear prints with every use. Say goodbye to blurry or smudged documents, ensuring professional-looking results for all your printing tasks. With its fast printing speeds, this printer ensures efficient workflow, allowing you to meet deadlines and stay productive. Whether it’s documents, presentations, or marketing materials, the Canon IR 2930i delivers exceptional performance every time. Experience seamless connectivity with built-in Wi-Fi and Ethernet options. Easily print from your computer, laptop, or mobile device, ensuring convenient access to your printing resources from anywhere in the office. Say goodbye to costly printing expenses with the Canon IR 2930i’s energy-saving features. This eco-friendly printer reduces power consumption without compromising performance, helping you save money and reduce your carbon footprint. Streamline your document management with the Canon IR 2930i’s advanced scanning capabilities. Effortlessly digitize your files and organize them with the included software, enhancing efficiency and collaboration within your team. In conclusion, the Canon IR 2930i Mono printer is the ultimate solution for your printing needs. With its high-quality prints, efficient performance, and versatile features, it’s the perfect addition to any business environment. Upgrade your printing experience today with the Canon IR 2930i printer. Specifications: Type : A3 Monochrome Laser Multifunctional Functions : Print, Copy, Scan, Send and Optional Fax Processor Speed : 1.6GHz Dual Core Processor Memory : 2.0GB RAM Storage : 64GB eMMC
The Star Micronics Receipt Printer TSP100 III WLAN offers fast and wireless printing for shops, cafés, and service counters. It produces sharp and clear receipts every time. The printer works quickly, and it helps reduce customer waiting time. It supports daily business tasks with reliable performance. Moreover, the Star Micronics Receipt Printer WLAN features a compact and modern design. It fits easily on small counters and busy checkout areas. The lightweight build makes it simple to move when needed. This makes it ideal for many business environments. In addition, the printer offers strong wireless connectivity. You can connect it to your network without cables. This creates a clean and flexible workspace. The setup process is simple and fast for all users. Furthermore, the Star Micronics Receipt Printer TSP100 III WLAN prints at high speed. This helps improve service flow during rush hours. It stays consistent even with long printing sessions. Your business gains better efficiency every day. Also, the printer uses thermal printing technology. It does not need ink or toner. This lowers running costs and reduces maintenance tasks. The paper loading system is quick and easy to use. The Star Micronics Receipt Printer WLAN also includes smart features for smoother operation. It supports cloud printing and mobile printing. These tools help modernize your business and improve workflow. The strong cutter ensures clean cuts with every print. Overall, the Star Micronics Receipt Printer TSP100 III WLAN delivers wireless freedom, fast printing, and reliable performance in one compact device. It enhances customer service and improves daily efficiency. It is perfect for retail stores, restaurants, cafés, and service counters. Specifications: Paper Width : 80mm Print Speed : 250mm/s WLAN cable-free interface
The Epson EcoTank L15150 A3 Wi-Fi Duplex All-in-One Ink Tank Printer is designed for businesses that need high-quality, cost-effective printing. It delivers fast and reliable performance with a refillable ink tank system, reducing printing costs. Firstly this A3 ink tank printer supports printing, scanning, copying, and faxing. It handles A3 and A4 paper sizes, making it perfect for offices with diverse printing needs. Its PrecisionCore printhead ensures sharp and vibrant prints with every job. Furthermore with Wi-Fi connectivity, you can print wirelessly from laptops, smartphones, and tablets. The printer supports mobile printing solutions like Epson iPrint and Apple AirPrint, making printing more convenient. Moreover the Epson EcoTank L15150 features automatic duplex printing, saving paper and reducing waste. This makes it an eco-friendly choice for businesses looking to minimize costs and environmental impact. Also the high-capacity ink tank system eliminates the need for cartridges. You can refill the ink easily and print thousands of pages before needing a replacement. This ensures uninterrupted workflow and significant savings. In Addition a large touchscreen display makes navigation simple. You can access settings, monitor ink levels, and manage tasks with ease. This user-friendly design enhances productivity in busy office environments. Also with fast printing speeds, this printer produces up to 25 black-and-white pages per minute. It ensures quick and efficient document handling, ideal for high-volume printing. Finally, built for durability, the Epson EcoTank L15150 is a long-lasting investment for businesses. Its sturdy design ensures reliable performance even with heavy workloads. In conclusion, the Epson EcoTank L15150 A3 Wi-Fi Duplex All-in-One Ink Tank Printer is a powerful and economical solution for professional printing. It combines efficiency, convenience, and cost savings in one advanced device. Specifications: Print speed of up to 25.0 ipm Prints up to A3+ (for simplex) Automatic duplex printing Ultra-high page yield of 7,500 pages (black) and 6,000 pages (colour) Wi-Fi, Wi-Fi Direct, Ethernet
IR-2520 Copy/Print Speed: 20 ppm – A4. Color A4/A3 Scanning.(Manual Scan) Feeder: 50 Sheets Capacity BW A4/A3 Copying/Printing. Writing: 1200 x 1200 dpi Standard: 1 trays 250 sheets each tray Bypass : 100 sheets paper capacity Duplex Built in. Network/USB. Large Touch Screen Pedestal Stand 1 year warranty
HP Laser M137fnw 4-in-1 Printer 4ZB84A is a compact monochrome laser printer designed for home and small office use. It supports printing, scanning, copying, and faxing in one device. In addition, it delivers print speeds up to 20–21 pages per minute. Therefore, it handles daily tasks efficiently. Moreover, it produces sharp black text with a resolution up to 1200 × 1200 dpi. Furthermore, HP Laser M137fnw includes built-in Wi-Fi, Ethernet, and USB connectivity. As a result, users can print from multiple devices easily. It also supports mobile printing solutions such as Apple AirPrint and Mopria for convenient wireless operation. In addition, it features a 40-sheet automatic document feeder. Therefore, it simplifies multi-page scanning and copying tasks. Moreover, it includes a 150-sheet input tray and supports a monthly duty cycle up to 10,000 pages. Overall, HP Laser M137fnw 4-in-1 Printer 4ZB84A delivers reliable performance, strong connectivity, and essential multifunction features for everyday office needs. manufacturer link Specifications: 4-in-1 functions: print, scan, copy, and fax Up to 20–21 ppm print speed Up to 1200 × 1200 dpi print resolution Wi-Fi, Ethernet, and USB connectivity 40-sheet ADF and 150-sheet input tray
The Star Micronics Receipt Printer BSC10II provides fast and clear printing for retail shops, restaurants, and small businesses. It creates sharp receipts that look clean and professional. The printer works quickly, and it helps reduce customer waiting time. It supports daily operations with strong reliability. Moreover, the Star Micronics Receipt Printer has a compact and durable design. It fits well on small counters and tight spaces. The solid build ensures long-lasting performance. This makes it ideal for busy work environments. In addition, the printer offers easy setup with simple controls. It supports multiple connection options for different POS systems. You can install it quickly without any trouble. This allows you to start printing in just a few minutes. Furthermore, the Star Micronics Receipt Printer BSC10II prints at high speed. This ensures smooth checkout lines and faster service. It stays consistent even during heavy use. Your workflow becomes more efficient throughout the day. Also, the printer uses thermal printing technology. This means no ink and no toner are required. It helps businesses reduce long-term costs. The paper loading system is fast and user-friendly. The Star Micronics Receipt Printer also includes a reliable auto-cutter. It delivers clean cuts after every print. This helps create professional receipts for customers. The strong design ensures stable performance in any setting. Overall, the Star Micronics Receipt Printer BSC10II offers speed, clarity, and easy operation in one compact device. It improves business workflow and enhances customer service. It is perfect for shops, cafés, restaurants, and service counters. This printer delivers dependable performance with simple and efficient features. Specifications: Paper Width : 80mm Print Speed : 250mm/s Dual USB-C and Ethernet LAN interface and USB-A
Canon GI-490 yellow ink bottle for PIXMA G Series printers delivers high-volume color printing with consistent output quality. It is designed for Canon MegaTank systems that require reliable refill performance. Additionally, Canon uses genuine dye-based yellow ink. This ink produces bright colors and smooth gradients, so it improves photo and document quality. Moreover, the bottle supports a high yield of up to 7000 pages. As a result, it reduces refill frequency and supports long-term printing efficiency. The bottle includes a spill-resistant design for clean refilling. Therefore, it helps users refill ink tanks easily and safely. In addition, the GI-490 works with selected Canon PIXMA G Series printers designed for GI-490 ink systems. It ensures stable performance and consistent color output. Canon GI-490 yellow ink bottle for PIXMA G Series printers provides dependable high-volume color printing for everyday use. Specifications: Yellow ink bottle for Canon PIXMA G Series MegaTank printers High yield up to 7000 pages per bottle Genuine Canon dye-based ink for bright color output Spill-resistant bottle design for easy refilling Compatible with selected Canon PIXMA G Series printers
K0Q15A LJ Enterprise M607dn Speed 52ppm, Res 1200x1200dpi, 1.2GHz proceesor, 512MB Memory, Duplex, Network, E-print, Airprint, USB2.0, Duty Cycle 250,000 pages
HP LaserJet Pro 4003dn 2Z609A is a high-speed monochrome laser printer designed for small to medium-sized businesses that need reliable, professional-quality printing. It delivers fast performance, strong security features, and efficient duplex printing for everyday office workflows. It features laser printing technology optimized for sharp black-and-white documents. Therefore, it produces clear text output suitable for reports, invoices, and business documents. In addition, it ensures consistent print quality across high-volume tasks. The printer supports automatic double-sided (duplex) printing. As a result, it helps reduce paper usage and improves workflow efficiency in busy office environments. It offers high printing speeds designed for productivity-focused users. Meanwhile, its robust build ensures reliable performance for continuous daily operation in professional settings. HP designs the LaserJet Pro series for dependable office productivity and security. Therefore, this model is ideal for businesses that require fast, efficient, and cost-effective printing solutions. Specifications: Print Speed : 40ppm Print Resolution : 1200x1200DPI Monthly Cycle : 750-4000 pages Features : LCD Display
Laser Drum Unit Printing technology: Laser Product type: Drum Unit Color: Black Page yield: 12,000 pages For use with Brother mono laser printers: DCP-L2535D, DCP-L2550DW, HL-L2335D, HL-L2370DN, HL-L2375DW, MFC-L2715DW, MFC-L2750DW Specifications: SKU: BR006EA19YE67NAFAMZ Color: Black Model: Brother DR-2405 Production Country: Japan 1 year warranty Manufacturer Link
HP LaserJet Pro M404dn Printer (W1A53A) is a monochrome laser printer designed for small to medium office environments. It focuses on fast, secure, and reliable business document printing. HP LaserJet Pro M404dn Printer delivers consistent performance for high-demand office workflows. In addition, it prints up to 40 pages per minute for A4 black documents. It also provides a first page out time as fast as 6.1 seconds for quick job handling. Moreover, it supports up to 1200 × 1200 dpi resolution for sharp and clear text output. Furthermore, it includes automatic duplex printing for efficient two-sided documents. It also supports USB and Gigabit Ethernet connectivity for stable network printing. In addition, it is designed for a high monthly duty cycle of up to 80,000 pages for enterprise use. Finally, it is built for secure printing environments with advanced firmware protection and managed IT control features. HP LaserJet Pro M404dn Printer provides reliable monochrome output for demanding office productivity. Specifications: Monochrome laser print-only business printer Up to 40 ppm A4 black print speed First page out in as fast as 6.1 seconds Automatic duplex (two-sided) printing support USB and Ethernet connectivity with enterprise security features
The Star Micronics Receipt Printer SP700 delivers fast and reliable printing for restaurants, kitchens, and retail counters. It produces clear receipts and kitchen tickets with strong accuracy. The printer works quickly, and it helps reduce waiting time during busy hours. It supports daily tasks with dependable performance. Moreover, the Star Micronics Receipt Printer is built for high-heat and high-pressure environments. It handles steam, heat, and spills without issues. Its durable design makes it perfect for kitchen use. This ensures long-lasting stability in tough work areas. In addition, the printer offers impact printing technology. This allows accurate printing on multi-part forms. It creates bold and readable text on every ticket. This improves order accuracy in restaurants and cafés. Furthermore, the Star Micronics Receipt Printer SP700 features fast print speeds. This helps kitchens process orders quickly and efficiently. The printer stays consistent even during long and busy shifts. Your workflow becomes smoother and more organized. Also, the SP700 supports multiple connection options. It works well with many POS systems. The setup process is simple and user-friendly. This helps businesses start printing without delays. The Star Micronics Receipt Printer also includes a reliable auto-cutter. It produces clean cuts for every print. This keeps receipts and tickets neat and easy to handle. Its strong build ensures long-term performance in demanding settings. Overall, the Star Micronics Receipt Printer SP700 provides speed, durability, and clear printing in one strong device. It improves order processing and enhances customer service. It is ideal for restaurants, cafés, retail stores, and busy kitchens. This printer offers reliable performance with simple and efficient features. Specifications: Paper Width : 76mm Print Speed : 4.7 to 8.9 lps
The Honeywell PD45 Industrial Label Printer is designed for high-performance printing in demanding environments. It delivers fast, precise, and reliable label printing for warehouses, manufacturing, and logistics. Firstly with direct thermal and thermal transfer printing, the Honeywell PD45 ensures clear and durable labels. It supports various label sizes, making it ideal for barcodes, shipping labels, and product tags. Furthermore this industrial printer features a powerful ARM Cortex-A7 processor for fast printing speeds. It can handle large volumes efficiently, reducing downtime and increasing productivity. Whether you need a few labels or thousands, this printer gets the job done. Moreover the Honeywell PD45 is built with a sturdy metal frame, ensuring durability in tough environments. It can withstand dust, moisture, and frequent use, making it perfect for industrial settings. With a user-friendly touchscreen interface, operating the printer is simple. You can easily adjust settings, load labels, and troubleshoot issues without hassle. The clear display improves efficiency and reduces setup time. Connectivity is seamless with USB, Ethernet, and optional Wi-Fi support. This allows flexible integration with your existing systems. Whether you’re printing from a desktop or a network, the Honeywell PD45 Industrial Label Printer ensures smooth operation. It supports multiple programming languages, including ZPL, DPL, and EPL, making it compatible with different software applications. This ensures easy integration into your workflow. Upgrade your label printing process with the Honeywell PD45 Industrial Label Printer. It offers speed, precision, and durability for all your industrial printing needs. Specifications: Resolution : Up to 300 dpi Maximum Print Width : 108mm
HP 63XL High Yield Black 140Original Ink Cartridge F6U64AN# Sku F6U64AA Yield 480 Page Yield (Black And White) ~480 pages Ink Drop 22 pl Cartridges Capacity High Capacity Cartridges Print Head Nozzles 328 Printhead Swath (Inch) 0.56 in Cartridge Color Black Technology Ink Print Cartridge Volume Delivered 8.5 ml Color(S) Of Printing Supplies Black Ink Types Pigment-based Supply Type Cartridges Product Sub Type High Capacity Ink Cartridges Country Of Origin Made in Malaysia, Ireland Dimensions Without Stand (W X D X H) 115 x 115 x 36 mm Package Dimensions (W X D X H) 115 x 115 x 36 mm Minimum Dimensions (W X D X H) 4.53 x 4.53 x 1.42 in Package Dimensions (W X D X H) 4.53 x 4.53 x 1.42 in Operating Temperature Range 15 to 32°C Non-Operating Humidity Range 20 to 80% RH Operating Humidity Range 20 to 80% RH Storage Temperature Range -40 to 60°C Hardware Compatibility HP DeskJet 1110, HP DeskJet 1115, HP DeskJet 2130, HP DeskJet 2135, HP DeskJet 3630, HP ENVY 4520, HP OfficeJet 3830, HP OfficeJet 4650 Weight 42.3 g Package Weight 0.06 kg Package Weight 0.13 lb Print Technology HP Thermal Inkjet Color Black manufacturer link
The HP Smart Tank 530 Wireless All‑in‑One (4SB24A) is perfect for home and small offices. first, it uses a cartridge‑free ink tank system, making refills simple and low‑cost. this system lets you print large volumes without stopping. in addition, dual‑band Wi‑Fi lets you print directly from computers, phones, or tablets. you can also use a USB cable for direct printing. This all‑in‑one printer prints, scans, and copies. moreover, the 35‑sheet automatic document feeder (ADF) saves time on multi-page tasks. it also supports mobile printing through the HP Smart app, Apple AirPrint, Google Cloud Print, and Mopria. black text prints up to 1200 × 1200 dpi, and color prints reach 4800 × 1200 dpi. The printer handles letter and legal-size papers. also, it supports borderless printing up to 8.5 × 11 in. a 100‑sheet input tray and a 30‑sheet output tray help keep papers organized. finally, manual duplex printing is possible, and the device supports up to 1000 pages per month for reliable performance. Specifications: Cartridge‑free ink tank system for low‑cost high‑volume printing Dual‑band Wi‑Fi and USB for flexible connectivity Print, scan, copy, and ADF for hands‑free tasks High print quality up to 1200 × 1200 dpi black and 4800 × 1200 dpi color Mobile print support with HP Smart app, AirPrint, and Mopria
P3255DN Printer Speed 33 ppm (A4) / 35 ppm (Letter),Resolution 1,200×600dpi, Automatic Duplex, Network, Hi-Speed USB 2.0, 128MB Memory, 50,000 pages Duty Cycle
A versatile wireless 2D barcode scanner with desk stand—Beurotika BS104WS supports auto-scan, continuous, and manual modes, with up to 200 scans per second and a 2000mAh rechargeable battery for all-day use. The Beurotika BS104WS is a high-performance wireless 2.4GHz 2D barcode scanner designed for retail, warehouse, logistics, and office environments. It comes with a convenient desktop stand for hands-free operation and features a 32-bit high-speed processor for fast, accurate decoding of 1D and 2D barcodes—including QR Code, Data Matrix, PDF417, and more Three scanning modes: Auto-scan, continuous scan, and manual trigger—ideal for different workflow needs Scanning speed: Up to 200 scans per second for rapid data capture Wireless range: Reliable 2.4GHz connection (via USB dongle) for cord-free mobility Built-in battery: 3.7V 2000mAh lithium-ion battery offering up to 16 hours of continuous use Ergonomic handheld design with desk stand for flexible countertop or portable use Plug-and-play setup via USB receiver—no drivers required for most systems
NCTS USB Barcode Scanner – High-speed wired scanner for both 1D and 2D barcodes with auto-sensing mode.Plug-and-play solution ideal for retail, inventory, and logistics operations. Model: NCTS 1D/2D Barcode Scanner (USB Wired) Color: Black Scan Type: Image-based CMOS scanner Supported Barcode Types: 1D: Code 128, Code 39, EAN-13, UPC-A, Codabar, ISBN, etc. 2D: QR Code, PDF417, Data Matrix, Aztec, etc. Supported Barcode Types: 1D: Code 128, Code 39, EAN-13, UPC-A, Codabar, ISBN, etc. 2D: QR Code, PDF417, Data Matrix, Aztec, etc. Interface: USB 2.0 (Plug-and-play, no driver required) Scan Speed: Up to 300 scans/second Resolution: ≥ 4mil (0.1mm) Scan Modes: Manual trigger Auto-sensing Continuous mode Scan Modes: Manual trigger Auto-sensing Continuous mode Light Source: White LED illumination + red aiming line Indicators: LED and buzzer for scan confirmation Power Supply: DC 5V (via USB port) Cable Length: ~1.5 meters Build: ABS plastic, ergonomic handheld design Compatibility: Windows, macOS, Linux, Android Applications: POS, inventory, logistics, healthcare, warehouse use
Barcode Reader Wireless 2D S20W Wireless 2D Barcode Scanner | S20-W Name: Wireless 2D Barcode Scanner Model: S20-W Interface: USB Color: Black