Introduction Thermal Inkjet (TIJ) printers are widely used in industrial marking for their clean, maintenance-free operation and high-resolution output. However, one recurring technical issue is the printer’s failure to recognize the ink cartridge. Whether you’re using a Videojet, HP, or other compatible system, cartridge recognition errors can halt production and cause delays. This guide explores the main causes of these issues and provides actionable solutions to get your TIJ system running smoothly again. — 1. What Is a Cartridge Recognition Error? A recognition error occurs when the TIJ printer fails to detect or authenticate the installed ink cartridge. This may result in messages such as: “Cartridge not recognized” “Unsupported cartridge” “Empty or invalid cartridge” These errors can prevent printing entirely or limit functionality until resolved. — 2. Common Causes of Recognition Failures 1. Dirty or Damaged Cartridge Contacts The golden contacts on the back of the cartridge must maintain a clean, stable connection with the printer head reader. Dirt, ink buildup, or physical damage may block signal transmission. 2. Expired or Counterfeit Cartridges Some cartridges have built-in chips or expiry timers. If the chip is expired, counterfeit, or programmed incorrectly, the printer may reject it. 3. Firmware Incompatibility After a firmware update, the printer may no longer recognize older or third-party cartridges that were previously compatible. 4. Incorrect Cartridge Type Installing the wrong type of TIJ cartridge—such as water-based ink in a solvent printer—can trigger recognition errors. 5. Printer Software Glitches Sudden shutdowns, electrical spikes, or corrupted printer settings may

Introduction In the industrial marking and coding world, ink adhesion is critical to ensuring that printed codes—such as expiry dates, batch numbers, and traceability info—remain legible throughout the product’s lifecycle. Poor ink adhesion can result in smudging, fading, or complete detachment from the surface, leading to production delays, compliance failures, and costly recalls. This guide explains common causes of ink adhesion failure and how to troubleshoot them across CIJ, TIJ, and DOD printing systems. — 1. What Is Ink Adhesion? Ink adhesion refers to the ability of ink to bond and remain on the substrate after application. In packaging environments, where friction, humidity, or temperature extremes are common, good adhesion ensures durability and readability over time. Good adhesion: Ink withstands touch, abrasion, water, and solvents Poor adhesion: Ink flakes off, smudges easily, or fades prematurely — 2. Common Causes of Ink Adhesion Failure 1. Substrate Incompatibility Some materials, especially low surface energy plastics like PP, PE, and silicone, naturally repel ink. Incorrect ink chemistry for the substrate Lack of surface treatment (corona, plasma, etc.) 2. Contaminated Surface Oil, dust, water, or mold-release agents on the substrate can interfere with ink bonding. Clean the substrate prior to printing Avoid static buildup that attracts particles 3. Incorrect Ink Formulation Using the wrong ink type for a specific application (e.g., dye-based instead of pigment-based) can reduce adhesion performance. CIJ inks require solvent compatibility TIJ cartridges often have pre-set formulas for specific materials 4. Environmental Conditions High humidity, cold surfaces, or condensation can prevent

Introduction Printing on unconventional materials like rubber, silicone, and low-energy plastics (such as polyethylene and polypropylene) presents unique challenges due to their non-porous and chemically resistant surfaces. Traditional inks often fail to adhere properly, leading to smudging, fading, or complete detachment of the print. This article explores the characteristics of high-adhesion inks specifically designed for these tough surfaces and discusses the technologies and treatment methods that enhance ink bonding in industrial applications. — 1. Why Printing on Low-Energy Surfaces is Difficult Materials like silicone and polyethylene have low surface energy, meaning inks have difficulty spreading and bonding. Instead of forming a thin, even film, the ink tends to bead up and remain unstable. Key reasons include: Chemical Inertness: Silicone resists bonding due to its hydrophobic and non-reactive surface. Low Surface Energy: Most standard inks require higher surface energy to “wet” the material effectively. Flexibility: Rubber surfaces expand and contract, putting stress on printed characters. — 2. What Are High-Adhesion Inks? High-adhesion inks are specially formulated to bind to hard-to-print surfaces. These inks may contain adhesion promoters or specialized resins that increase surface interaction. Common features include: Fast drying on non-absorbent surfaces Excellent scratch and rub resistance High chemical and solvent resistance Long-term stability on flexible substrates — 3. Ink Technologies for Difficult Surfaces Several types of ink technologies are used for high-adhesion needs: MEK-Based Inks: Offer aggressive solvent properties that help bite into the surface, improving anchorage. Epoxy Resin Inks: Require curing but offer exceptional chemical bonding, suitable for silicone

Introduction Counterfeiting is a global threat affecting industries from pharmaceuticals and cosmetics to electronics and FMCG goods. One of the most effective tools in the fight against counterfeiters is the use of security inks. These specialized inks offer covert and overt protection by embedding traceable or verifiable information directly on the product packaging. This article explores the different types of security inks, their applications in industrial inkjet systems, and how they enhance product authenticity and supply chain integrity. — 1. What Are Security Inks? Security inks are formulated with features that are difficult to replicate or detect with the naked eye. These features can be categorized as: Overt: Easily visible, such as color-shifting inks or thermochromic (heat-reactive) inks. Covert: Invisible to the naked eye and revealed only under special conditions (e.g., UV light, infrared, or chemical treatment). Forensic: Micro-particles, taggants, or DNA-coded elements detectable only in labs. — 2. Common Types of Security Inks Security inks vary based on their functional characteristics. Below are the most commonly used types in industrial inkjet systems: UV Fluorescent Inks: Invisible under normal light, but glow under UV light. Popular in high-speed CIJ or TIJ systems for packaging verification. Thermochromic Inks: Change color based on temperature shifts, often used in cold-chain packaging. Color-Shifting Inks: Appear different when viewed at various angles, useful for overt brand protection. IR Readable Inks: Used in supply chains for scanning invisible codes with IR-enabled cameras. Microtext or Hidden Images: Printed using high-resolution TIJ printers with specialized inks for microscopic