{"product_id":"ct-s851iiis3nnubkp","title":"Citizen CT-S851III Type III Front-Exit Thermal POS Printer, USB, Black","description":"\u003csection class=\"spartan-product-description citizen-ct-s851iii-usb-black\"\u003e\n\n  \u003cp\u003e\u003cstrong\u003eThe Citizen CT-S851IIIS3NNUBKP CT-S851III Front-Exit Thermal Receipt Printer is a black USB POS receipt printer built for retail, restaurant counter, hospitality, café, service desk, and checkout environments that need reliable direct thermal receipt printing in a compact front-exit design.\u003c\/strong\u003e This exact model is the \u003cstrong\u003eUSB black front-exit version\u003c\/strong\u003e, making it a strong fit for supported POS systems that connect to a receipt printer directly by USB.\u003c\/p\u003e\n\n  \u003cp\u003eAlso searched as the \u003cstrong\u003eCitizen CT-S851III\u003c\/strong\u003e, \u003cstrong\u003eCT-S851IIIS3NNUBKP\u003c\/strong\u003e, \u003cstrong\u003eCitizen CT-S851III USB black printer\u003c\/strong\u003e, \u003cstrong\u003eCitizen front-exit receipt printer\u003c\/strong\u003e, \u003cstrong\u003eCitizen USB thermal POS printer\u003c\/strong\u003e, \u003cstrong\u003eCT-S851III S3NNUBKP\u003c\/strong\u003e, and \u003cstrong\u003eCitizen black receipt printer\u003c\/strong\u003e, this model is commonly evaluated by businesses replacing or standardizing around Citizen front-exit thermal receipt printers, including older CT-S851 and CT-S851II-style front-exit printer workflows.\u003c\/p\u003e\n\n  \u003cp\u003eSpartan POS is an authorized dealer for many leading POS hardware brands and supports the products it sells. Spartan POS can help confirm the correct receipt printer model, USB interface, receipt paper, cash drawer setup, drivers, accessories, and POS software compatibility before ordering.\u003c\/p\u003e\n\n  \u003cp\u003eBuild a complete checkout setup with \u003ca href=\"\/collections\/receipt-printers\"\u003ereceipt printers\u003c\/a\u003e, \u003ca href=\"\/collections\/receipt-paper\"\u003ereceipt paper\u003c\/a\u003e, \u003ca href=\"\/collections\/thermal-paper\"\u003ethermal paper\u003c\/a\u003e, \u003ca href=\"\/collections\/cash-drawers\"\u003ecash drawers\u003c\/a\u003e, \u003ca href=\"\/collections\/barcode-scanners\"\u003ebarcode scanners\u003c\/a\u003e, and related \u003ca href=\"\/collections\/pos-hardware\"\u003ePOS hardware\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch2\u003eQuick Answer\u003c\/h2\u003e\n\n  \u003cp\u003eThe Citizen CT-S851IIIS3NNUBKP is best for businesses that need a \u003cstrong\u003eblack front-exit thermal receipt printer with USB connectivity\u003c\/strong\u003e. Choose this model when your POS system supports a USB-connected Citizen CT-S851III printer and your counter layout benefits from receipts exiting from the front instead of the top.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eThis is not the Ethernet, Bluetooth, Wi-Fi, or serial version.\u003c\/strong\u003e If your POS system requires network printing, mobile tablet pairing, or another interface, confirm the correct Citizen CT-S851III configuration before ordering.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eCompatibility depends on your POS software, operating system, connection type, drivers, accessories, and configuration. Confirm compatibility before ordering.\u003c\/strong\u003e\u003c\/p\u003e\n\n  \u003ch2\u003eWho Is This For?\u003c\/h2\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eRetail checkout counters that need a dependable USB receipt printer.\u003c\/li\u003e\n    \u003cli\u003eRestaurants, cafés, bakeries, bars, and quick-service counters using supported USB printer setups.\u003c\/li\u003e\n    \u003cli\u003eHospitality desks, service counters, and customer-facing POS stations.\u003c\/li\u003e\n    \u003cli\u003eBusinesses with limited counter space where a front-exit receipt path is preferred.\u003c\/li\u003e\n    \u003cli\u003eCheckout areas where spills, dust, crumbs, or debris make a top-exit paper path less ideal.\u003c\/li\u003e\n    \u003cli\u003eBusinesses replacing or standardizing around Citizen CT-S851, CT-S851II, or CT-S851III front-exit printer workflows.\u003c\/li\u003e\n    \u003cli\u003ePOS setups using compatible \u003ca href=\"\/collections\/cash-drawers\"\u003ecash drawers\u003c\/a\u003e, \u003ca href=\"\/collections\/barcode-scanners\"\u003ebarcode scanners\u003c\/a\u003e, and \u003ca href=\"\/collections\/receipt-paper\"\u003ethermal receipt paper\u003c\/a\u003e.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eWhy Choose This Model?\u003c\/h2\u003e\n\n  \u003cp\u003eThe CT-S851III front-exit design is useful when the printer sits under a shelf, close to other POS hardware, near a pickup counter, or in a service area where staff need easy access to receipts without reaching over the top of the printer. Because receipts exit from the front, the printer can fit into tighter countertop layouts than many top-exit receipt printers.\u003c\/p\u003e\n\n  \u003cp\u003eThis black USB version is especially useful for businesses that want a clean-looking receipt printer that matches modern black terminals, stands, payment devices, and checkout hardware. It also avoids ink, toner, and ribbon supplies because it uses direct thermal printing with compatible \u003ca href=\"\/collections\/thermal-paper\"\u003ethermal receipt paper\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch2\u003eImportant Model Clarification\u003c\/h2\u003e\n\n  \u003ctable\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003cth\u003eProduct Name\u003c\/th\u003e\n        \u003ctd\u003eCitizen CT-S851III Front-Exit Thermal Receipt Printer, USB, Black\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003ctd\u003eCitizen\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003ctd\u003eCT-S851III\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eSKU \/ MPN\u003c\/th\u003e\n        \u003ctd\u003eCT-S851IIIS3NNUBKP\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003ePrinter Type\u003c\/th\u003e\n        \u003ctd\u003ePOS thermal receipt printer\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003ePrint Method\u003c\/th\u003e\n        \u003ctd\u003eDirect thermal\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003ePaper Exit\u003c\/th\u003e\n        \u003ctd\u003eFront exit\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eConnection Type\u003c\/th\u003e\n        \u003ctd\u003eUSB\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eColor\u003c\/th\u003e\n        \u003ctd\u003eBlack\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eCommon Paper Type\u003c\/th\u003e\n        \u003ctd\u003eCompatible 3 1\/8 inch \/ 80mm thermal receipt paper\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBest Fit\u003c\/th\u003e\n        \u003ctd\u003eSupported retail, restaurant counter, hospitality, service desk, and checkout POS environments\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch2\u003eSearch Intent Match\u003c\/h2\u003e\n\n  \u003ctable\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eWhat You Searched\u003c\/th\u003e\n        \u003cth\u003eDoes This Product Match?\u003c\/th\u003e\n        \u003cth\u003eWhat to Check\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCitizen CT-S851IIIS3NNUBKP\u003c\/td\u003e\n        \u003ctd\u003eYes\u003c\/td\u003e\n        \u003ctd\u003eThis is the exact SKU \/ MPN for this product page.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCitizen CT-S851III USB black receipt printer\u003c\/td\u003e\n        \u003ctd\u003eYes\u003c\/td\u003e\n        \u003ctd\u003eConfirm your POS software supports this USB model.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCitizen front-exit receipt printer\u003c\/td\u003e\n        \u003ctd\u003eLikely\u003c\/td\u003e\n        \u003ctd\u003eConfirm color, interface, paper size, and POS compatibility.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCitizen Ethernet receipt printer\u003c\/td\u003e\n        \u003ctd\u003eNo\u003c\/td\u003e\n        \u003ctd\u003eThis listing is USB. Choose an Ethernet model if your POS requires network printing.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCitizen Bluetooth receipt printer\u003c\/td\u003e\n        \u003ctd\u003eNo\u003c\/td\u003e\n        \u003ctd\u003eThis listing is USB. Choose a Bluetooth-supported model if your POS requires Bluetooth pairing.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eKitchen printer\u003c\/td\u003e\n        \u003ctd\u003eMaybe, but confirm carefully\u003c\/td\u003e\n        \u003ctd\u003eThis is a thermal receipt printer. Hot kitchens often require impact printers, bond paper, and ribbons.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003cp\u003eFor connection planning, read \u003ca href=\"\/pages\/ethernet-vs-bluetooth-vs-usb-receipt-printers\"\u003eEthernet vs Bluetooth vs USB Receipt Printers\u003c\/a\u003e. For restaurant printer decisions, compare \u003ca href=\"\/pages\/thermal-vs-impact-receipt-printers\"\u003ethermal vs impact receipt printers\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch2\u003eKey Features\u003c\/h2\u003e\n\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFront-exit receipt path:\u003c\/strong\u003e Helps receipts exit toward the user, which is useful for tight counters, under-shelf placement, and service areas where top access is limited.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUSB interface:\u003c\/strong\u003e Designed for POS setups that support a direct USB receipt-printer connection.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDirect thermal printing:\u003c\/strong\u003e Prints receipts using compatible thermal paper without ink, toner, or ribbon supplies.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBlack housing:\u003c\/strong\u003e Matches many modern POS terminals, tablet stands, payment stations, and retail counter setups.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompact POS-friendly design:\u003c\/strong\u003e Fits checkout stations, restaurant counters, pickup areas, hospitality desks, and service counters.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eQuiet receipt output:\u003c\/strong\u003e Appropriate for customer-facing environments where loud printing is not ideal.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCitizen front-exit platform:\u003c\/strong\u003e A strong fit for businesses standardizing around Citizen CT-S851III front-exit receipt printers.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWorks with compatible POS accessories:\u003c\/strong\u003e Can be used as part of a broader setup with supported \u003ca href=\"\/collections\/cash-drawers\"\u003ecash drawers\u003c\/a\u003e, \u003ca href=\"\/collections\/barcode-scanners\"\u003ebarcode scanners\u003c\/a\u003e, and \u003ca href=\"\/collections\/receipt-paper\"\u003ereceipt paper\u003c\/a\u003e.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eFront-Exit vs Top-Exit Receipt Printers\u003c\/h2\u003e\n\n  \u003ctable\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003ePrinter Style\u003c\/th\u003e\n        \u003cth\u003eBest For\u003c\/th\u003e\n        \u003cth\u003eConsiderations\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eFront-exit receipt printer\u003c\/td\u003e\n        \u003ctd\u003eTight counters, under-shelf placement, restaurant counters, service desks, hospitality stations, and spill-prone areas.\u003c\/td\u003e\n        \u003ctd\u003eConfirm the printer footprint, paper access, and POS station layout before installation.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eTop-exit receipt printer\u003c\/td\u003e\n        \u003ctd\u003eOpen retail counters where the printer has clear space above it.\u003c\/td\u003e\n        \u003ctd\u003eMay be less ideal where shelves, counters, spills, or debris interfere with top paper exit.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch2\u003eUSB vs Ethernet vs Bluetooth Receipt Printing\u003c\/h2\u003e\n\n  \u003ctable\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eConnection Type\u003c\/th\u003e\n        \u003cth\u003eWhen It Makes Sense\u003c\/th\u003e\n        \u003cth\u003eIs This Product That Version?\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eUSB\u003c\/td\u003e\n        \u003ctd\u003eDirect connection to a supported POS terminal, computer, register, or station.\u003c\/td\u003e\n        \u003ctd\u003eYes. This CT-S851IIIS3NNUBKP listing is the USB version.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eEthernet\u003c\/td\u003e\n        \u003ctd\u003eNetworked POS setups, shared printer access, and stations where the POS software requires LAN printing.\u003c\/td\u003e\n        \u003ctd\u003eNo. Choose an Ethernet version if your POS requires network printing.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eBluetooth\u003c\/td\u003e\n        \u003ctd\u003eSome tablet POS environments and mobile-style countertop setups.\u003c\/td\u003e\n        \u003ctd\u003eNo. Choose a Bluetooth-supported model if your POS requires Bluetooth.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eWi-Fi\u003c\/td\u003e\n        \u003ctd\u003eSome flexible network setups where wiring is difficult.\u003c\/td\u003e\n        \u003ctd\u003eNo. Confirm a Wi-Fi-supported model if required.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch2\u003eThermal Receipt Printer vs Impact Kitchen Printer\u003c\/h2\u003e\n\n  \u003ctable\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003ePrinter Type\u003c\/th\u003e\n        \u003cth\u003eBest For\u003c\/th\u003e\n        \u003cth\u003eSupplies Used\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCitizen CT-S851III thermal receipt printer\u003c\/td\u003e\n        \u003ctd\u003eRetail receipts, restaurant counter receipts, hospitality checkout, customer receipts, pickup counters, and service desks.\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"\/collections\/thermal-paper\"\u003eThermal receipt paper\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eImpact kitchen printer\u003c\/td\u003e\n        \u003ctd\u003eHot kitchen environments, prep stations, and certain multipart or kitchen-ticket workflows.\u003c\/td\u003e\n        \u003ctd\u003eBond paper and ink ribbons\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003cp\u003eThis Citizen CT-S851III model can be a good fit for restaurant counters, cafés, bars, pickup stations, and hospitality checkout areas. For hot kitchens, grill stations, or environments where thermal paper may be affected by heat, review \u003ca href=\"\/pages\/thermal-vs-impact-receipt-printers\"\u003eThermal vs Impact Receipt Printers\u003c\/a\u003e before ordering.\u003c\/p\u003e\n\n  \u003ch2\u003eCompatible Receipt Paper\u003c\/h2\u003e\n\n  \u003cp\u003eThe Citizen CT-S851III uses compatible thermal receipt paper. Many POS receipt printer setups use \u003cstrong\u003e3 1\/8 inch \/ 80mm thermal receipt paper\u003c\/strong\u003e, but roll diameter, length, core size, and paper specifications should be confirmed for the exact printer and POS workflow before ordering supplies.\u003c\/p\u003e\n\n  \u003cp\u003eBrowse \u003ca href=\"\/collections\/receipt-paper\"\u003ereceipt paper\u003c\/a\u003e and \u003ca href=\"\/collections\/thermal-paper\"\u003ethermal paper\u003c\/a\u003e. For paper sizing help, use the \u003ca href=\"\/pages\/receipt-paper-size-guide\"\u003eReceipt Paper Size Guide\u003c\/a\u003e, \u003ca href=\"\/pages\/80mm-vs-58mm-receipt-paper\"\u003e80mm vs 58mm Receipt Paper\u003c\/a\u003e, and \u003ca href=\"\/pages\/thermal-vs-bond-receipt-paper\"\u003eThermal vs Bond Receipt Paper\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch2\u003eWhere This Fits in a POS Setup\u003c\/h2\u003e\n\n  \u003cp\u003eThe Citizen CT-S851IIIS3NNUBKP fits into a complete POS station when the POS software supports a USB-connected Citizen thermal receipt printer. It is commonly paired with checkout hardware, payment hardware, cash drawers, barcode scanners, and receipt paper.\u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eCompatible POS terminal, register, computer, or supported POS device.\u003c\/li\u003e\n    \u003cli\u003eSupported POS software configured for the correct Citizen USB printer model.\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/collections\/receipt-paper\"\u003eThermal receipt paper\u003c\/a\u003e for customer receipts and order receipts.\u003c\/li\u003e\n    \u003cli\u003eCompatible \u003ca href=\"\/collections\/cash-drawers\"\u003ecash drawer\u003c\/a\u003e and correct cash drawer cable, when cash handling is required.\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/collections\/barcode-scanners\"\u003eBarcode scanner\u003c\/a\u003e for item lookup, checkout, inventory, or back-office workflows.\u003c\/li\u003e\n    \u003cli\u003eSupported drivers, cables, power accessories, and printer configuration.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eWhat You May Need to Order\u003c\/h2\u003e\n\n  \u003ctable\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eItem\u003c\/th\u003e\n        \u003cth\u003eWhy You May Need It\u003c\/th\u003e\n        \u003cth\u003eShop or Learn\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eThermal receipt paper\u003c\/td\u003e\n        \u003ctd\u003eRequired for direct thermal receipt printing.\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"\/collections\/receipt-paper\"\u003eShop receipt paper\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCash drawer\u003c\/td\u003e\n        \u003ctd\u003eNeeded for cash-handling POS stations if supported by the printer, drawer, cable, and POS software.\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"\/collections\/cash-drawers\"\u003eShop cash drawers\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eUSB cable or connection path\u003c\/td\u003e\n        \u003ctd\u003eRequired to connect the printer to the supported POS terminal or computer if not already included.\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"\/pages\/what-is-included-with-pos-hardware\"\u003eCheck what is included with POS hardware\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003ePrinter driver or POS app setup\u003c\/td\u003e\n        \u003ctd\u003eRequired by many Windows, macOS, or POS software environments.\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"\/pages\/pos-hardware-setup-troubleshooting\"\u003ePOS hardware setup and troubleshooting\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eDifferent interface version\u003c\/td\u003e\n        \u003ctd\u003eNeeded if your POS system requires Ethernet, Bluetooth, Wi-Fi, or serial instead of USB.\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"\/collections\/receipt-printers\"\u003eShop receipt printers\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch2\u003eWhat’s Included in the Box?\u003c\/h2\u003e\n\n  \u003cp\u003eBox contents can vary by Citizen configuration, distributor package, and SKU. Confirm the exact contents before ordering, especially if your setup requires a power supply, USB cable, cash drawer cable, wall mount, interface cable, paper roll, driver download, or setup guide.\u003c\/p\u003e\n\n  \u003cp\u003eFor general buying guidance, read \u003ca href=\"\/pages\/what-is-included-with-pos-hardware\"\u003eWhat’s Included with POS Hardware?\u003c\/a\u003e and \u003ca href=\"\/pages\/pos-hardware-warranty-return-policy\"\u003ePOS Hardware Warranty and Return Policy Guide\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch2\u003eCompatibility Badges\u003c\/h2\u003e\n\n  \u003ctable\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003ePOS System\u003c\/th\u003e\n        \u003cth\u003eCompatibility Status\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eShopify POS\u003c\/td\u003e\n        \u003ctd\u003eConfirm before ordering.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSquare\u003c\/td\u003e\n        \u003ctd\u003eConfirm before ordering.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eClover\u003c\/td\u003e\n        \u003ctd\u003eConfirm before ordering.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eToast\u003c\/td\u003e\n        \u003ctd\u003eConfirm before ordering.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eLightspeed\u003c\/td\u003e\n        \u003ctd\u003eConfirm before ordering.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOther POS Systems\u003c\/td\u003e\n        \u003ctd\u003eConfirm before ordering.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \n\u003ch2\u003eHealthcare Printing Applications\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eCT-S851III\u003c\/strong\u003e can support healthcare receipt, ticket, queue, and front-desk printing workflows when paired with compatible software, paper, drivers, and connection options. Citizen positions receipt printers for healthcare areas such as admissions, queue management, paperwork identification, cafeteria and other service areas, pharmacy receipt printing, and private practice office workflows.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eClinic, hospital, and private-practice front-desk receipts\u003c\/li\u003e\n  \u003cli\u003eQueue management and patient-service tickets\u003c\/li\u003e\n  \u003cli\u003ePharmacy checkout, prescription pickup, and customer receipt printing\u003c\/li\u003e\n  \u003cli\u003eCafeteria, gift shop, and healthcare retail transaction printing\u003c\/li\u003e\n  \u003cli\u003eSelf-service terminal receipts and administrative documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSee related \u003ca href=\"\/collections\/healthcare-receipt-printers\"\u003ehealthcare receipt printers\u003c\/a\u003e and the full guide to \u003ca href=\"\/pages\/citizen-healthcare-printing-solutions\"\u003eCitizen healthcare printing solutions\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility depends on your POS software, operating system, connection type, drivers, accessories, and configuration. Confirm compatibility before ordering.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003eCompatibility Guidance\u003c\/h2\u003e\n\n  \u003cp\u003eThis product is intended for POS environments that support the \u003cstrong\u003eCitizen CT-S851III USB thermal receipt printer\u003c\/strong\u003e. Do not assume this USB version is interchangeable with Ethernet, Bluetooth, Wi-Fi, serial, or other Citizen CT-S851III configurations.\u003c\/p\u003e\n\n  \u003cp\u003eCompatibility depends on your POS software, operating system, connection type, drivers, accessories, and configuration. Confirm compatibility before ordering.\u003c\/p\u003e\n\n  \u003cp\u003eBefore buying, confirm the exact supported printer list from your POS provider, the operating system being used, whether USB printing is supported, whether a driver is required, whether the cash drawer connection is supported, and whether the correct receipt paper is available.\u003c\/p\u003e\n\n  \u003ch2\u003eSetup and Troubleshooting Tips\u003c\/h2\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eConfirm your POS software supports the Citizen CT-S851III USB model before installation.\u003c\/li\u003e\n    \u003cli\u003eInstall the correct driver or POS app configuration when required by your operating system.\u003c\/li\u003e\n    \u003cli\u003eUse compatible thermal receipt paper and confirm the roll loads in the correct orientation.\u003c\/li\u003e\n    \u003cli\u003eTest a receipt print before opening the station for live transactions.\u003c\/li\u003e\n    \u003cli\u003eConfirm cash drawer kick support with the printer, drawer, cable, and POS software before relying on automatic drawer opening.\u003c\/li\u003e\n    \u003cli\u003eKeep a spare roll of \u003ca href=\"\/collections\/receipt-paper\"\u003ereceipt paper\u003c\/a\u003e at each checkout station.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp\u003eFor help with setup, visit the \u003ca href=\"\/pages\/pos-hardware-setup-troubleshooting\"\u003ePOS Hardware Setup and Troubleshooting Center\u003c\/a\u003e or \u003ca href=\"\/pages\/contact-pos-hardware-expert\"\u003econtact a POS hardware expert\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch2\u003eWhen This Might Not Be the Best Choice\u003c\/h2\u003e\n\n  \u003cp\u003eThis Citizen CT-S851III USB black model may not be the right choice if your POS software requires Ethernet, Bluetooth, Wi-Fi, or serial printing. It also may not be the best choice for hot kitchen environments where an impact printer, bond paper, and ink ribbon are required.\u003c\/p\u003e\n\n  \u003cp\u003eChoose a different \u003ca href=\"\/collections\/receipt-printers\"\u003ereceipt printer\u003c\/a\u003e if your POS provider specifies another brand, model, interface, operating system, or printer family. Review \u003ca href=\"\/pages\/pos-hardware-compatibility-guide\"\u003ePOS Hardware Compatibility Guide\u003c\/a\u003e before ordering hardware for a new POS setup.\u003c\/p\u003e\n\n  \u003ch2\u003eWhy Buy from Spartan POS?\u003c\/h2\u003e\n\n  \u003cp\u003eSpartan POS helps businesses choose POS hardware based on real checkout workflows, software requirements, connection type, paper needs, and accessory compatibility. Spartan POS is an authorized dealer for many leading POS hardware brands and supports the products it sells.\u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAuthorized dealer support:\u003c\/strong\u003e Buy receipt printers, cash drawers, scanners, paper, and POS hardware from a trusted source.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompatibility-first guidance:\u003c\/strong\u003e Confirm printer model, connection type, drivers, paper, accessories, and POS software support before ordering.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCheckout workflow planning:\u003c\/strong\u003e Match the printer to retail, restaurant counter, hospitality, service desk, and front-counter POS environments.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSupport after the sale:\u003c\/strong\u003e Spartan POS supports the products it sells.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp\u003eFor more information, read \u003ca href=\"\/pages\/why-trust-spartan-pos\"\u003eWhy Trust Spartan POS?\u003c\/a\u003e, \u003ca href=\"\/pages\/authorized-pos-hardware-dealer-support\"\u003eAuthorized POS Hardware Dealer Support\u003c\/a\u003e, and \u003ca href=\"\/pages\/pos-hardware-warranty-return-policy\"\u003ePOS Hardware Warranty and Return Policy Guide\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch2\u003eRelated Products, Categories, and Guides\u003c\/h2\u003e\n\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"\/collections\/receipt-printers\"\u003eReceipt Printers\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/collections\/receipt-paper\"\u003eReceipt Paper\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/collections\/thermal-paper\"\u003eThermal Paper\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/collections\/cash-drawers\"\u003eCash Drawers\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/collections\/barcode-scanners\"\u003eBarcode Scanners\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/collections\/pos-hardware\"\u003ePOS Hardware\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/pages\/citizen-ct-s801iii-ct-s851iii-receipt-printers\"\u003eCitizen CT-S801III and CT-S851III Receipt Printers\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/pages\/ethernet-vs-bluetooth-vs-usb-receipt-printers\"\u003eEthernet vs Bluetooth vs USB Receipt Printers\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/pages\/receipt-paper-size-guide\"\u003eReceipt Paper Size Guide\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/pages\/80mm-vs-58mm-receipt-paper\"\u003e80mm vs 58mm Receipt Paper\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/pages\/thermal-vs-bond-receipt-paper\"\u003eThermal vs Bond Receipt Paper\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/pages\/thermal-vs-impact-receipt-printers\"\u003eThermal vs Impact Receipt Printers\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/pages\/pos-hardware-compatibility-guide\"\u003ePOS Hardware Compatibility Guide\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/pages\/contact-pos-hardware-expert\"\u003eContact a POS Hardware Expert\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n  \u003ch3\u003eWhat is the Citizen CT-S851IIIS3NNUBKP?\u003c\/h3\u003e\n  \u003cp\u003eThe Citizen CT-S851IIIS3NNUBKP is a black Citizen CT-S851III front-exit thermal receipt printer with USB connectivity. It is designed for compatible POS checkout environments that need direct thermal receipt printing.\u003c\/p\u003e\n\n  \u003ch3\u003eIs this the USB version of the Citizen CT-S851III?\u003c\/h3\u003e\n  \u003cp\u003eYes. This product page is for the USB black version. Confirm that your POS software supports this exact USB model before ordering.\u003c\/p\u003e\n\n  \u003ch3\u003eIs this an Ethernet or Bluetooth receipt printer?\u003c\/h3\u003e\n  \u003cp\u003eNo. This listing is for the USB version. If your POS system requires Ethernet, Bluetooth, Wi-Fi, or serial connectivity, choose the correct interface version instead.\u003c\/p\u003e\n\n  \u003ch3\u003eWhat does front-exit mean?\u003c\/h3\u003e\n  \u003cp\u003eFront-exit means the receipt exits from the front of the printer instead of the top. This can be useful for tight counters, under-shelf placement, service desks, and areas where staff need easy receipt access from the front.\u003c\/p\u003e\n\n  \u003ch3\u003eDoes the Citizen CT-S851III use ink or toner?\u003c\/h3\u003e\n  \u003cp\u003eNo. This is a direct thermal receipt printer, so it does not use ink, toner, or ribbon supplies. It requires compatible thermal receipt paper.\u003c\/p\u003e\n\n  \u003ch3\u003eWhat receipt paper does this printer use?\u003c\/h3\u003e\n  \u003cp\u003eMany Citizen CT-S851III POS setups use compatible 3 1\/8 inch \/ 80mm thermal receipt paper. Confirm the correct roll width, diameter, length, and paper specification for your exact printer and POS environment before ordering supplies.\u003c\/p\u003e\n\n  \u003ch3\u003eIs the Citizen CT-S851III good for restaurants?\u003c\/h3\u003e\n  \u003cp\u003eIt can be a good fit for restaurant counters, cafés, bars, hospitality desks, and pickup areas when the POS system supports this USB model. For hot kitchen printing, compare thermal and impact printer requirements before ordering.\u003c\/p\u003e\n\n  \u003ch3\u003eCan this printer open a cash drawer?\u003c\/h3\u003e\n  \u003cp\u003eCash drawer support depends on the printer configuration, cash drawer model, cable, POS software, driver, and setup. Confirm compatibility before ordering a cash drawer or relying on automatic drawer kick.\u003c\/p\u003e\n\n  \u003ch3\u003eIs this compatible with Shopify POS?\u003c\/h3\u003e\n  \u003cp\u003eShopify POS compatibility depends on Shopify’s supported hardware list, the exact printer model, connection type, POS device, operating system, and configuration. Confirm support for this Citizen CT-S851III USB model before ordering.\u003c\/p\u003e\n\n  \u003ch3\u003eIs this compatible with Square, Clover, Toast, or Lightspeed?\u003c\/h3\u003e\n  \u003cp\u003eCompatibility with Square, Clover, Toast, Lightspeed, and other POS systems depends on the software-supported printer list, operating system, connection type, drivers, accessories, and configuration. Confirm compatibility before ordering.\u003c\/p\u003e\n\n  \u003ch3\u003eWhat should I order with this printer?\u003c\/h3\u003e\n  \u003cp\u003eMost businesses should confirm compatible thermal receipt paper, USB connection requirements, drivers, POS software support, and cash drawer compatibility. Start with \u003ca href=\"\/collections\/receipt-paper\"\u003ereceipt paper\u003c\/a\u003e, \u003ca href=\"\/collections\/cash-drawers\"\u003ecash drawers\u003c\/a\u003e, and related \u003ca href=\"\/collections\/receipt-printers\"\u003ereceipt printers\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch3\u003eCan Spartan POS help confirm whether this is the correct model?\u003c\/h3\u003e\n  \u003cp\u003eYes. Spartan POS supports the products it sells and can help customers confirm printer model, USB interface, receipt paper, cash drawer setup, drivers, accessories, and POS compatibility before ordering.\u003c\/p\u003e\n\n  \u003ch2\u003eBottom Line\u003c\/h2\u003e\n\n  \u003cp\u003eThe Citizen CT-S851IIIS3NNUBKP CT-S851III Front-Exit Thermal Receipt Printer is a strong choice for businesses that need a \u003cstrong\u003eblack USB front-exit receipt printer\u003c\/strong\u003e for a compatible retail, restaurant counter, café, hospitality, service desk, or POS checkout setup. Its front-exit paper path makes it especially useful for tighter counters, under-shelf placement, and customer-facing environments where printer placement matters.\u003c\/p\u003e\n\n  \u003cp\u003eChoose this model if your POS system supports the \u003cstrong\u003eCitizen CT-S851III USB printer\u003c\/strong\u003e. Choose a different model if you need Ethernet, Bluetooth, Wi-Fi, serial, impact kitchen printing, or another configuration. For help building the right setup, browse \u003ca href=\"\/collections\/receipt-printers\"\u003ereceipt printers\u003c\/a\u003e, \u003ca href=\"\/collections\/receipt-paper\"\u003ereceipt paper\u003c\/a\u003e, \u003ca href=\"\/collections\/cash-drawers\"\u003ecash drawers\u003c\/a\u003e, and \u003ca href=\"\/collections\/pos-hardware\"\u003ePOS hardware\u003c\/a\u003e, or \u003ca href=\"\/pages\/contact-pos-hardware-expert\"\u003econtact a POS hardware expert\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003c\/section\u003e\n","brand":"Citizen","offers":[{"title":"Default Title","offer_id":46080649035972,"sku":"CT-S851IIIS3NNUBKP","price":317.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0252\/0167\/2295\/files\/Citizen_CT-S851III-BK.webp?v=1776881998","url":"https:\/\/spartanpos.com\/products\/ct-s851iiis3nnubkp","provider":"Spartan POS","version":"1.0","type":"link"}