{"product_id":"roland-limit-sensor-for-fj740","title":"Roland Limit Sensor for FJ740","description":"\u003c!-- Roland Limit Sensor for FJ740 \/ SJ645 \/ SJ745 \/ FJ540 (Shopify HTML) --\u003e\n\u003cdiv style=\"font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif; color: #222; line-height: 1.65;\"\u003e\n\u003ch2 style=\"margin: 0 0 12px; font-size: 22px;\"\u003eRoland Limit Sensor for FJ740 \/ SJ645 \/ SJ745 \/ FJ540\u003c\/h2\u003e\n\u003c!-- Overview --\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eThe \u003cstrong\u003eRoland Limit Sensor\u003c\/strong\u003e is a precision carriage end-stop detector that ensures accurate homing and protects the print mechanism from overtravel. It restores reliable limit detection and keeps your printer aligned for consistent output.\u003c\/p\u003e\n\u003c!-- Key Features --\u003e\n\u003cdiv style=\"background: #fafafa; border: 1px solid #eee; border-radius: 10px; padding: 14px; margin: 14px 0;\"\u003e\n\u003ch3 style=\"margin: 0 0 8px; font-size: 18px;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"margin: 0; padding-left: 18px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccurate triggering:\u003c\/strong\u003e Stable, repeatable detection of carriage limits for precise homing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStable printing:\u003c\/strong\u003e Prevents head overrun, misalignment and false stops that cause banding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable housing:\u003c\/strong\u003e Heat- and wear-resistant body with secure plug connector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop-in replacement:\u003c\/strong\u003e Connector and mounting points match the model-reference part for quick service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality tested:\u003c\/strong\u003e Each unit is electrically tested for output integrity before packing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Compatibility --\u003e\n\u003ch3 style=\"margin: 12px 0 6px; font-size: 18px;\"\u003eCompatible Printers\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 10px;\"\u003eRoland \u003cstrong\u003eFJ-740\u003c\/strong\u003e, \u003cstrong\u003eSJ-645\u003c\/strong\u003e, \u003cstrong\u003eSJ-745\u003c\/strong\u003e, \u003cstrong\u003eFJ-540\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c!-- Symptoms --\u003e\n\u003ch3 style=\"margin: 14px 0 6px; font-size: 18px;\"\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul style=\"margin: 0 0 12px; padding-left: 18px;\"\u003e\n\u003cli\u003eCarriage fails to home or stops short\/overshoots the cap station.\u003c\/li\u003e\n\u003cli\u003eIntermittent “limit” or “home” errors; random carriage alarms.\u003c\/li\u003e\n\u003cli\u003eVisible physical damage or unstable connector\/lead.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Installation --\u003e\n\u003ch3 style=\"margin: 12px 0 6px; font-size: 18px;\"\u003eInstallation Guide\u003c\/h3\u003e\n\u003col style=\"margin: 0 0 12px; padding-left: 18px;\"\u003e\n\u003cli\u003ePower off and unplug the printer; wait for electronics to discharge.\u003c\/li\u003e\n\u003cli\u003eRemove the carriage cover to access the limit sensor bracket.\u003c\/li\u003e\n\u003cli\u003eDisconnect the 2-pin plug and remove the screws\/clips holding the sensor.\u003c\/li\u003e\n\u003cli\u003eInstall the new sensor in the same orientation; tighten gently.\u003c\/li\u003e\n\u003cli\u003eReconnect the plug; ensure the cable is routed without pinch points.\u003c\/li\u003e\n\u003cli\u003ePower on and run a carriage\/home test in service menu to verify triggering.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c!-- Troubleshooting --\u003e\n\u003ch3 style=\"margin: 12px 0 6px; font-size: 18px;\"\u003eQuick Checks if Issue Persists\u003c\/h3\u003e\n\u003cul style=\"margin: 0 0 12px; padding-left: 18px;\"\u003e\n\u003cli\u003eClean the interrupter flag on the carriage and the sensor slot (no dust\/ink).\u003c\/li\u003e\n\u003cli\u003eConfirm the carriage flag passes centrally through the slot during homing.\u003c\/li\u003e\n\u003cli\u003eInspect wiring harness for breaks; reseat the mainboard connector.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- In the Box --\u003e\n\u003ch3 style=\"margin: 12px 0 6px; font-size: 18px;\"\u003ePackage Includes\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003e1 × Limit Sensor (compatible replacement), protective retail box.\u003c\/p\u003e\n\u003c!-- Notes --\u003e\n\u003cp style=\"margin: 8px 0 0; font-size: 13px; color: #555;\"\u003eNote: Compare your reference sensor shape\/plug before ordering. Professional installation is recommended for best results.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"UV INK PRO","offers":[{"title":"Default Title","offer_id":44272615161942,"sku":null,"price":2.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/3782\/5878\/files\/Roland-Limit-Sensor-for-FJ740-1.webp?v=1774950622","url":"https:\/\/www.uvinkpro.com\/products\/roland-limit-sensor-for-fj740","provider":"UV INK PRO","version":"1.0","type":"link"}