Factory Direct Eggs Printing Hand Jet Printer

Overview

The hand jet printer is a portable, non‑contact marking system that deposits ink droplets onto moving surfaces via a piezoelectric nozzle. In egg processing lines, it prints directly onto the shell without affecting product integrity. Factory‑direct supply eliminates intermediary markup and allows tighter control of firmware updates and spare‑part logistics.

Technical Specifications

Parameter	Typical Value
Print resolution	1200 dpi (dots per inch)
Ink type	Food‑grade, solvent‑based, UV‑curable (optional)
Maximum print speed	300 eggs per minute (depends on line speed)
Ink consumption	0.8 ml per 1 000 prints
Power supply	24 VDC, 2 A (optional 110/220 VAC adapter)
Dimensions (L×W×H)	210 mm × 95 mm × 130 mm
Weight	1.2 kg
Operating temperature	0 °C to 45 °C

Applications in Egg Processing

Egg producers need reliable, legible coding for traceability, branding, and regulatory compliance. The hand jet printer meets these requirements by printing directly onto the curved shell without physical contact, reducing the risk of micro‑cracks.

Date and lot code printing for recall readiness.
Brand logos or promotional text for retail packaging.
Grade indicators (e.g., organic, free‑range) to support premium pricing.
Security features such as UV‑visible inks for anti‑counterfeit measures.

Because the printer is handheld, operators can adjust positioning on‑the‑fly to accommodate variations in egg size or line speed, maintaining consistent print quality across batches.

Key Features

The device uses a piezoelectric actuator capable of firing droplets as small as 15 picoliters, enabling fine detail on uneven surfaces.

An integrated sensor monitors nozzle‑to‑surface distance and automatically adjusts firing voltage to compensate for shell curvature.

Ink cartridges are sealed, food‑grade containers with a capacity of 50 ml, providing approximately 60 000 prints before replacement.

A quick‑release mounting bracket allows the printer to be fixed to a conveyor side‑frame or used handheld with an ergonomic grip.

Frequently Asked Questions

Can the printing distance be adjusted for different egg sizes?

Yes. The built‑in distance sensor provides feedback to the driver board, allowing the operator to set a nominal gap between 2 mm and 6 mm via the control panel.

What ink formulations are approved for direct food contact?

Only inks that comply with FDA 21 CFR §175.300 and EU Regulation 10/2011 are offered. These are solvent‑based, low‑odor formulations that cure within seconds under ambient light.

How is the printer maintained in a high‑humidity processing environment?

The housing is rated IP54, protecting against splashing water and dust. Routine maintenance involves wiping the nozzle plate with a lint‑free cloth soaked in approved cleaning solution and checking the ink filter every 500 ml of usage.

Is firmware customization available for OEM integration?

Yes. The printer exposes a UART interface for custom protocols, and the manufacturer provides a SDK upon request for embedding into line‑control software.