}
}
}
}Seiko 508GS 12pl Greyscale Printhead IRH2533U-2410
Brand: Oki
Tax excluded. Shipping calculated at checkout
Availability: In stock
The Seiko 508GS IRH2533U-2410 is a genuine original greyscale piezoelectric printhead for solvent and UV wide-format printing. With 508 nozzles, a 12 pl native drop, 7-level greyscale capability, 18 kHz firing frequency, 72mm active print width, integrated damper assembly, non-wetting nozzle plate, and built-in nozzle guard, it is one of the most widely deployed industrial greyscale heads in the large-format solvent market. Manufactured in Japan by Seiko Instruments (SII). Every IRH2533U-2410 we sell at Digiprint USA is 100% genuine original Seiko.
Ink type warning — solvent/UV only. This IRH2533U-2410 variant is for solvent and UV-curable inks only. It is not compatible with water-based inks. For water-based aqueous applications, the correct part is the Seiko 508GS 12pl Water Printhead IRH2533U-1420 — a different head. Confirm your ink type before ordering.
Technical Specifications
| Specification | Detail |
|---|---|
| Model | Seiko 508GS 12pl — IRH2533U-2410 |
| Total nozzles | 508 |
| Active print width | 72 mm |
| Physical resolution | 180 dpi |
| Drop volume | 12 pl per drop (multiples up to 7 drops = 84 pl equivalent) |
| Greyscale levels | 7 levels (via multiple drop jetting) |
| Firing frequency | 18 kHz (and multiples) |
| Nozzle plate | Non-wetting |
| Integrated components | Built-in damper assembly + nozzle guard |
| Ink compatibility | Solvent and UV-curable inks — NOT water-based |
| Weight | 280 g |
| Country of origin | Japan (Seiko Instruments / SII) |
| Warranty | Manufacturer warranty included |
| Condition | 100% genuine original Seiko, brand new |
Seiko 508GS Variant Comparison — Solvent/UV vs Water
| Part Number | Ink Type | Drop | For |
|---|---|---|---|
| IRH2533U-2410 (this listing) | Solvent / UV-curable | 12 pl | Solvent and UV wide-format printers |
| IRH2533U-1420 | Water-based / aqueous | 12 pl | Aqueous wide-format printers |
| IRH2513J-2330 | Solvent | 7 pl | Finer-detail solvent output |
Selecting the wrong variant — especially mixing the solvent/UV (IRH2533U-2410) with the water-based (IRH2533U-1420) — will cause permanent damage to the nozzle plate. Always confirm your printer's ink system and current head part number before ordering.
About 7-Level Greyscale on the Seiko 508GS
The 508GS achieves greyscale output through multiple drop jetting — stacking between 1 and 7 individual 12 pl drops per nozzle per firing cycle to vary the ink volume deposited at each dot location. This produces 7 distinct density levels without requiring variable drop piezo technology, delivering smooth tonal gradation at 180 dpi physical resolution. The result is visually smooth output well beyond what the physical nozzle density alone would suggest.
Installation Note — Head Cables
Seiko and the wider reseller community strongly recommends replacing the head cables whenever installing a new 508GS printhead. Aged or contaminated cables are a leading cause of premature head failure after installation. Always use manufacturer-approved cable replacements and have the head installed by a qualified technician.
Compatible Printers
This printhead is compatible with the following printers:
Contact our team with your printer make, model, and current head part number to confirm IRH2533U-2410 compatibility before ordering.
Warranty Notice
Due to the sensitive nature of industrial inkjet printhead components, we cannot accept returns, exchanges, or refunds once the printhead has been installed. All sales are final. Contact our team to confirm ink type compatibility and correct variant before ordering.
Why Buy from Digiprint USA
• 100% genuine original Seiko 508GS IRH2533U-2410 — not compatible, not refurbished
• Manufactured in Japan by Seiko Instruments (SII) — sealed original packaging
• In stock in Doral, Miami FL — same day shipping before 2PM EST
• Ideal for Latin American Infiniti, CrystalJet, and Icontek print shops using Miami freight forwarders
• Free technical support — we confirm IRH2533U-2410 vs IRH2533U-1420 (solvent/UV vs water) and correct variant for your printer before you order
View our full range of genuine Seiko industrial printheads stocked by Digiprint USA.
Frequently Asked Questions
What is the difference between IRH2533U-2410 and IRH2533U-1420?
Both are Seiko 508GS 12pl greyscale heads with identical nozzle count, print width, and frequency. The difference is ink compatibility: IRH2533U-2410 (this listing) is for solvent and UV-curable inks; IRH2533U-1420 is for water-based aqueous inks. The nozzle plate material differs between the two — installing the wrong variant with the wrong ink type will permanently damage the head. Always confirm your printer's ink system before ordering.
How does the 508GS achieve 7-level greyscale?
The 508GS achieves greyscale through multiple drop jetting — stacking 1 to 7 individual 12 pl drops per pixel to vary ink volume and dot size. This produces 7 distinct tonal levels at 180 dpi physical resolution, creating smooth gradients across solid areas without the complexity of variable-drop piezo drive electronics.
Should I replace the head cables when installing this printhead?
Yes — this is strongly recommended. Aged or contaminated head cables are a leading cause of new printhead failure shortly after installation. Always replace cables with fresh manufacturer-approved cable sets and have the installation performed by a qualified service technician.
Do you ship Seiko 508GS IRH2533U-2410 printheads to Latin America?
Yes — same day shipping from our Doral, Miami FL warehouse. Our Miami location is ideal for Latin American Infiniti, CrystalJet, and Icontek print shops using freight forwarders in the Doral area.
