HP Latex Media Feed Accessory

The HP Latex Media Feed Accessory 421S3A, also referred to as the HP Latex Substrate Feed Accessory or Substrate Saver, is designed to improve media handling and reduce waste when printing on wide-format substrates. This genuine HP accessory supports printing from pinches with most media types, helping operators achieve more reliable feeding and cleaner results.

By gently holding the leading edge of the substrate flat, the accessory minimizes curling, lifting, and uneven feeding that can occur during attachment to the take-up reel. This is especially beneficial on shorter runs, rigid materials, or substrates prone to edge lift. The result is a higher success rate of plots, fewer reprints, and improved overall workflow efficiency.

Designed for substrates 48 inches wide or greater, the HP Latex Media Feed Accessory integrates seamlessly with compatible HP Latex printers and installs quickly without disrupting existing production processes.

Why Choose HP Latex Media Feed Accessory 421S3A

HP Latex Media Feed Accessory improves consistency, protects substrates, and supports professional-quality output.

• Improves substrate feeding from the front pinch zone
• Reduces media waste caused by take-up reel attachment
• Helps prevent curling and lifting during printing
• Supports smoother, more reliable plot execution
• Designed specifically for wide substrates 48 inches and wider
• Genuine HP accessory engineered for long-term reliability

Applications

• Banners
• Exterior signage
• Window, wall, and floor graphics
• Short-run and rigid substrate printing
• Professional production environments

Compatibility

Compatible with HP Latex printers, including:

• HP Latex 630
• HP Latex 630 W
• HP Latex 630 Print and Cut Plus Solution
• HP Latex 630 W Print and Cut Plus Solution
• HP Latex 700
• HP Latex 700W
• HP Latex 800
• HP Latex 800W

Compatibility Notes
This accessory is intended for use with substrates 48 inches or wider. It is optimized for HP Latex 600, 700, and 800 series platforms to support consistent media handling and reduced waste.

Specifications

• Product Name: HP Latex Media Feed Accessory
• HP Part Number: 421S3A
• Estimated Weight: Approx. 5 lbs (2.27 kg)
• Estimated Product Dimensions: Approx. 64 × 18 × 1 in
• Function: Substrate stabilization and improved media feeding

Improve Substrate Control and Reduce Waste

Add the HP Latex Media Feed Accessory to your HP Latex workflow to improve feeding reliability, reduce substrate waste, and maintain consistent print quality on wide-format jobs.