{"product_id":"roland-ink-damper-for-xj740","title":"Roland Ink Damper for XJ740","description":"\u003cdiv style=\"font-family: Arial; font-size: 15px; line-height: 1.5; color: #333;\"\u003e\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin-bottom: 10px;\"\u003eRoland Ink Damper for XJ740 \/ XJ640 \/ XC540 \/ XJ540\u003c\/h2\u003e\n\u003cp\u003eThe Roland Ink Damper is a vital component for maintaining stable ink flow and protecting printheads in Roland printers. Designed for XJ740, XJ640, XC540, and XJ540 models, this damper ensures smooth ink delivery and prevents clogging during high-speed printing.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; margin-top: 15px; margin-bottom: 8px;\"\u003eFeatures:\u003c\/h3\u003e\n\u003cul style=\"margin: 0; padding-left: 18px;\"\u003e\n\u003cli\u003eHigh-quality PP material, durable and corrosion-resistant\u003c\/li\u003e\n\u003cli\u003eLarge internal metallic filter for smooth ink flow and printhead protection\u003c\/li\u003e\n\u003cli\u003eCompatible with eco-solvent, UV, and water-based inks\u003c\/li\u003e\n\u003cli\u003eHelps prevent ink starvation during long or high-speed printing\u003c\/li\u003e\n\u003cli\u003eEasy replacement, cost-effective and long lifespan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; margin-top: 15px; margin-bottom: 8px;\"\u003eSpecifications:\u003c\/h3\u003e\n\u003cul style=\"margin: 0; padding-left: 18px;\"\u003e\n\u003cli\u003eOuter Diameter: 4.28mm\u003c\/li\u003e\n\u003cli\u003eInner Diameter: 2.57mm\u003c\/li\u003e\n\u003cli\u003eAlternative Connector Size: 3.3mm \/ 1.72mm\u003c\/li\u003e\n\u003cli\u003eCompatible Models: Roland XJ740, XJ640, XC540, XJ540\u003c\/li\u003e\n\u003cli\u003eApplication: Ink supply system, printhead protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; margin-top: 15px; margin-bottom: 8px;\"\u003ePackage Includes:\u003c\/h3\u003e\n\u003cp\u003e1 x Ink Damper for Roland Printers\u003c\/p\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cp\u003eRoland Ink Damper for XJ740 is offered as a replacement damper for compatible printer maintenance and spare-parts replacement. It is intended for buyers who need to match the correct machine configuration, connector type, and manufacturer part number before installation.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003ePrinter models referenced in current product data: XJ740\u003c\/li\u003e \u003cli\u003eConfirm the printer model, part number, connector layout, size, and use position before ordering when compatibility is uncertain.\u003c\/li\u003e \u003cli\u003ePart number reference: XJ740\u003c\/li\u003e \u003cli\u003eIf your machine has multiple revisions, compare the model-reference part number, connector layout, and mounting position before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFunction and Use Position\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eStabilizes ink pressure before the printhead\u003c\/li\u003e \u003cli\u003eHelps filter micro-particles and reduce bubbles in the ink path\u003c\/li\u003e \u003cli\u003eSupports smoother ink delivery during printing and cleaning cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Details\u003c\/h2\u003e\n\u003ctable width=\"100%\" cellspacing=\"0\" cellpadding=\"8\" border=\"1\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth align=\"left\"\u003eCondition\u003c\/th\u003e \u003ctd\u003eReplacement\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth align=\"left\"\u003eCategory\u003c\/th\u003e \u003ctd\u003eDamper\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth align=\"left\"\u003eVendor\u003c\/th\u003e \u003ctd\u003eUV INK PRO\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth align=\"left\"\u003eProduct Type\u003c\/th\u003e \u003ctd\u003eDamper\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth align=\"left\"\u003ePart Number\u003c\/th\u003e \u003ctd\u003eXJ740\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOrdering Notes\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eReplacement status: Replacement.\u003c\/li\u003e \u003cli\u003eMatch manufacturer part reference \/ part number: XJ740.\u003c\/li\u003e \u003cli\u003eCommon machine reference found in title or tags: XJ740.\u003c\/li\u003e \u003cli\u003eFor electronic parts, motion parts, and fluid-system parts, professional installation is recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e 1 × Roland Ink Damper for XJ740\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eCommon Replacement Scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplace when colors intermittently drop out, bubbles appear repeatedly, or the printhead side shows unstable ink feeding.\u003c\/li\u003e \u003cli\u003eInspect this part when the damper body becomes stained, swollen, cracked, or no longer seals reliably.\u003c\/li\u003e \u003cli\u003eOn printers with multiple channels, one weak damper can affect daily color consistency even if the printhead is still usable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment Checklist\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReferenced machine models: XJ740, XJ640, XC540, XJ540.\u003c\/li\u003e \u003cli\u003eConfirm the printhead-side connector, damper shape, and line orientation against the model-reference part.\u003c\/li\u003e \u003cli\u003eCheck joint style, filter structure, connector direction, sealing method, and manufacturer reference before final purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eService Pairing Suggestions\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMany buyers inspect cap tops, ink tubes, pumps, and filters at the same time when damper problems appear.\u003c\/li\u003e \u003cli\u003eUse this damper only when the water-based ink path, connector style, and physical size match the reference assembly.\u003c\/li\u003e \u003cli\u003eProfessional installation is recommended when the printer uses a sealed manifold or tightly packed multi-channel head carriage.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"UV INK PRO","offers":[{"title":"Default Title","offer_id":44273962156118,"sku":null,"price":1.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/3782\/5878\/files\/Roland-Ink-Damper-for-XJ740-1.webp?v=1775015250","url":"https:\/\/www.uvinkpro.com\/products\/roland-ink-damper-for-xj740","provider":"UV INK PRO","version":"1.0","type":"link"}