A replacement listing for systems configured around the Emerald QE-256/30 AAA 30 pL industrial printhead reference.
Confirm compatibility before payment. Brand and model names are used only to identify the required part reference and compatibility.
256Inline nozzles
30 pLNative drop
Up to 900 dpiAddressable resolution
VersaDropGrayscale
Technical Details
Reference model
Emerald QE-256/30 AAA
Technology
Piezoelectric drop-on-demand with VersaDrop
Nozzle count
256 inline nozzles
Native drop
30 pL
Resolution
Addressable resolutions up to 900 dpi
Ink reference
UV-curable, organic solvent, and aqueous
Fluid path
Dual-port design with integral temperature sensor
Compatibility
Confirm complete AAA code, electronics, waveform, fluid, and printer revision
Send These Details Before Ordering
Printer brand, model, and machine revision
Clear photos of the existing printhead label
Cable, connector, and drive-board information
Ink type and ink-delivery configuration
Destination country and required condition
Important: The 30 pL value is the native drop size; “up to 900 dpi” is an addressable system resolution, not a universal native machine setting. Professional installation is recommended. Incorrect wiring, waveform, voltage, pressure, ink, or handling can permanently damage a printhead.
Common Questions
Which ink can I use?
Use only a qualified UV-curable, organic-solvent, or aqueous formulation with the correct waveform and fluid-delivery setup.
How do I confirm compatibility?
Send the printer model plus photos of the existing label, connector, cable, drive board, and ink setup. We will compare them before payment.
Can I install the printhead myself?
Professional installation is recommended. Inspect the label and condition before installing; contact us first if anything differs from the confirmed order.
Please confirm the product model, specifications, and compatibility before ordering. Except where required by applicable law, buyer-side compatibility mistakes generally require review and may not qualify for return, refund, exchange, or compensation.
Printheads, inks, cleaning liquids, electronic boards, and opened or installed items usually require written review before return unless we shipped the wrong item or the goods arrived damaged.
If your order arrives damaged or incorrect, contact us within 3 calendar days after delivery with photos, package details, and your order number so we can review the case.
Shipping
Shipping time, stock availability, duties, and import charges may vary by product and destination. Available checkout and shipping details are shown before payment when Shopify checkout can calculate them for the destination.
For urgent shipment timing or fitment help, contact us before purchase.
Seller of record and after-sales responsible entity: M&M UNION HONGKONG LIMITED / Trade name: UV INK PRO / Office: H020 3/F, Phase 2, Kwai Shing Industrial Building, 42-46 Tai Lin Pai Road, Kwai Chung, New Territories, Hong Kong / Support: Cathy@icolorpro.com / WhatsApp: +86 186 6466 9614. Prices are displayed in USD. Orders are fulfilled from China or Hong Kong depending on SKU. Returns require written RMA approval before shipment.