Magnetic Stripe Encoding on Card Printers: Complete Overview

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Most people think of a card printer as a device that simply puts graphics and text onto a plastic card. That's true - but it undersells the technology considerably. Magnetic stripe encoding transforms a printed card into a functional tool that stores and transmits data the moment it's swiped. For access control systems, membership programs, hotel key cards, and loyalty platforms, the magnetic stripe isn't optional. It's the whole point.

There's a real difference between buying a printer that produces a pretty card and buying one that encodes a working credential. Understanding how magnetic stripe encoding works, which printers support it, and what your organization actually needs before purchasing - that's what separates a smooth deployment from a costly mistake. CPE has been helping businesses navigate exactly these decisions for over 25 years, serving more than 100,000 customers across the United States.

Magnetic Stripe Type Coercivity Level Typical Use Case Data Durability
LoCo (Low Coercivity) 300 Oe Hotel key cards, temporary access Shorter-term use
HiCo (High Coercivity) 2750 Oe Employee IDs, access control, loyalty Long-term, magnetic interference resistant
JIS II 600 Oe Japanese standard applications Medium durability

Inside a card printer equipped with a magnetic stripe encoder, a small write head magnetizes particles embedded in the stripe on the back of the card. Data is written in tracks - most cards use ISO standard Track 1, Track 2, and Track 3 - each holding different types of information. The process happens automatically during the print cycle, meaning your card comes out of the printer already printed, encoded, and ready to use.

The encoding happens in one pass through the printer. Whether you're printing a single card or running a batch through an input hopper, the magnetic stripe encoder writes the designated data to each card individually, tied to whatever record you've associated with that card in your software. This is what makes in-house printing genuinely powerful: every card is unique, personalized, and functional the moment it exits the machine.

Track 1 holds alphanumeric data and can store up to 79 characters. It's commonly used for cardholder names and account numbers. Track 2, which is purely numeric and holds up to 40 characters, is the track most access control and loyalty systems actually read. Track 3 is less commonly used in North America but supports read-write operations in certain proprietary systems.

For most businesses setting up employee ID programs, membership systems, or building access, Tracks 1 and 2 are sufficient. Your software or access control platform will specify which tracks need to be written and what data format to use. The printer simply executes those instructions. It's a division of labor that, once configured, runs without friction.

Coercivity refers to the magnetic field strength required to write and erase data on a stripe. Low coercivity (LoCo) stripes are easier to write but also easier to accidentally erase - a proximity to magnets in a wallet or purse can corrupt the data. High coercivity (HiCo) stripes require more magnetic force to write and are significantly more resistant to interference and wear.

Hotel key cards are a classic LoCo application because they're intended for short-term use and the hotel's lock system is calibrated for LoCo. Employee ID cards, access credentials, and loyalty cards that see daily use over months or years are almost universally HiCo. Choosing the wrong coercivity type for your application is a setup for user frustration and card replacement costs. Many printers from CPE's lineup support both, giving you flexibility.

Hardware is only part of the story. Your card design and encoding software is the bridge between your data source - an HR system, membership database, or access control platform - and the printer. Most professional card printers are compatible with major software platforms like Evolis CardPresso, Zebra's ZMotif SDK, and third-party tools that support standard printer drivers.

Getting the software configured correctly upfront saves significant headaches later. The encoding fields need to map precisely to the tracks your reader hardware expects. When printers, software, and reader infrastructure are all aligned from the start, the system works seamlessly at scale. This is one of the reasons working with an experienced supplier like CPE matters - knowing what questions to ask before you purchase prevents expensive misconfigurations.

Not every card printer ships standard with a magnetic stripe encoder. For many models, it's a factory-installed upgrade option or an add-on module that must be specified at the time of purchase. This is important to understand before you buy. Ordering the base printer without the encoding module and then discovering your cards need to be swiped is a frustrating and avoidable scenario.

Across the Evolis, Fargo, Zebra, and Matica lineups that Plastic Card ID carries, magnetic stripe encoding is available at nearly every production tier. The right choice depends on your volume, whether you need single- or dual-sided printing, and whether you also need smart chip encoding on the same unit.

The Evolis Zenius is a capable single-sided desktop printer that accepts a magnetic stripe encoding module, making it a strong choice for small-to-medium organizations printing 1,000 to 3,000 cards per month. The Primacy2 steps up to dual-sided printing with magnetic stripe encoding available, ideal for employee IDs that need data on one side and a photo or branding on the other.

For organizations requiring the highest-quality edge-to-edge output with full encoding capability, the Evolis Agilia delivers premium results. The Agilia is built for operations where print quality, encoding precision, and throughput all matter simultaneously. If your application involves loyalty cards or membership cards where visual impact is as critical as data integrity, this is a printer worth serious consideration. To learn more, call 800.835.7919.

Fargo printers have long been a go-to choice for security-sensitive ID programs. Their printers support HiCo and LoCo encoding and often integrate with access control ecosystems more directly than some competing brands. For organizations where the ID card is also the building access credential, Fargo's encoding ecosystem is well-proven.

Zebra card printers bring robust encoding options to the table alongside the brand's reputation for industrial reliability. Zebra's magnetic stripe encoding modules support ISO 7811 standards, ensuring compatibility with standard card reader infrastructure. When your operation demands printers that can run hard without maintenance interruptions, Zebra's build quality is difficult to argue with.

The Badgy200 is the right starting point for organizations printing under 1,000 cards per year - a school, small club, or business issuing visitor badges. It's compact, easy to set up, and well-suited to low-volume environments. However, buyers should verify encoding module availability for their specific use case at this tier, as base configurations vary.

For organizations in that low-volume range that do need magnetic stripe encoding, there are targeted solutions in the lineup that balance cost against capability. Buying more printer than you need is wasteful; buying less capability than your application demands is worse. The conversations CPE has had with tens of thousands of customers over the years have all centered on this exact match-making challenge.

The range of organizations that benefit from in-house magnetic stripe encoding is broader than most people initially assume. It's not just large corporations or government agencies. A mid-sized fitness club, a regional hotel chain, a university campus, a corporate office park - all of these operate card programs where encoding is a core function, not an afterthought.

This is probably the single most common use case. Employee ID cards that double as access credentials need HiCo encoding for durability and need to be printed with precision - both the photo and the encoded data must be right the first time. In-house printing means new hires get a functional card on their first day, terminated employees' cards can be deactivated immediately, and replacements can be issued within minutes.

Organizations managing multiple facilities or shift-based operations especially benefit from the speed of in-house production. There's no waiting for an outside vendor to produce and ship a batch. The HR department or security team prints exactly what's needed, when it's needed, fully encoded and ready to use.

Retail loyalty programs, gym memberships, warehouse clubs, and association membership cards all use magnetic stripe encoding to link the physical card to a database record. When a member swipes at the register, the stripe delivers their account number to the POS system instantly. Printing these cards in-house means your loyalty program can scale dynamically - run a promotion that generates 500 new members in a week, and you can print those cards the same day.

The alternative - outsourcing card production to a print vendor - introduces lead times, minimum order quantities, and per-card costs that compound at scale. For programs with high membership turnover or frequent re-issuances, the economics of in-house printing become compelling quickly. Call CPE at 800.835.7919 to talk through the numbers for your specific program.

Hotels represent one of the most volume-intensive magnetic stripe encoding use cases. Guests check in daily, cards get demagnetized, replacements are needed on demand, and the front desk can't afford to wait. LoCo encoding on a fast desktop printer - the Matica Event Printer serves high-throughput on-site scenarios particularly well - means keys are issued in seconds.

The Matica Event Printer is engineered for exactly this kind of burst-production environment. Whether it's a hotel front desk issuing key cards continuously or an event venue printing hundreds of badges at check-in, the combination of speed and encoding reliability makes it a standout option in the lineup.

Running a magnetic stripe card program isn't just about the printer. It's about maintaining the system reliably over time. Plastic Card ID supplies everything required to keep production running smoothly - ribbons, cleaning kits, lamination modules, and of course the blank cards themselves, pre-formatted with the appropriate magnetic stripe.

YMCKO ribbons are the standard choice for full-color cards and provide a protective overlay coat that guards the card surface - and by extension, the magnetic stripe area - against wear. Monochrome ribbons are a cost-effective choice for cards that don't require color photography, such as simple text-based access cards where encoding is the primary function and color isn't needed.

Specialty ribbons, including those with holographic overlay panels, add a visual security layer to high-value credentials like employee IDs used in sensitive facilities. Matching the ribbon type to your specific card program requirements keeps costs controlled while maintaining the output quality your application demands.

The magnetic stripe write head inside the printer is a precision component. Dust and debris accumulation on the print path can interfere with encoding quality over time - producing cards that fail to swipe reliably. Regular cleaning using manufacturer-specified kits is the simplest way to maintain encoding accuracy and extend the life of the printer's mechanical components.

Most Evolis, Fargo, and Zebra printers include cleaning card prompts in their firmware that notify operators when a cleaning cycle is due. Following these prompts consistently is one of those maintenance habits that costs almost nothing but prevents the kind of intermittent encoding failures that are genuinely difficult to diagnose after the fact.

Not all blank PVC cards include a magnetic stripe. When ordering card stock for an encoding-capable printer, confirming that the cards are pre-formatted with the correct stripe type - HiCo or LoCo - is essential. Using a LoCo card in a system configured for HiCo encoding, or vice versa, produces cards that won't read correctly in your hardware.

  • CR80 is the standard card size (same dimensions as a credit card) and the most widely used format for business card programs.
  • HiCo cards typically have a dark brown magnetic stripe; LoCo cards typically have a black stripe - a quick visual distinction in the field.
  • Cards should be stored flat, away from magnetic fields, to preserve the factory state of the stripe before encoding.
  • Ordering card stock and ribbons together from the same supplier simplifies logistics and ensures compatibility.
  • Card carriers and sleeves extend card lifespan by protecting both the printed surface and the magnetic stripe during daily handling.

The decision tree for choosing a magnetic stripe card printer starts with volume, branches to feature requirements, and then arrives at budget. Getting the sequence wrong - starting with budget and working backward - often results in under-specified hardware that creates operational problems six months into deployment. Here's a practical framework for making the right call.

Organizations printing fewer than 1,000 cards per year need a capable desktop unit that won't overwhelm their budget with capability they'll never use. The Evolis Badgy200 covers this range. Organizations printing 1,000 to 6,000 cards per month - a mid-size company, a college campus, a regional gym chain - move into the Zenius and Primacy2 range, where dual-sided options and robust encoding become standard considerations.

High-volume operations, event venues, and hotel chains with continuous issuance needs should be looking at the Matica Event Printer and the higher-throughput Evolis and Zebra configurations. Input hoppers that hold 100 or more cards, combined with encoding capability, allow largely unattended batch production - a significant operational advantage when issuance volumes spike predictably around events or enrollment periods.

For employee IDs, the question of whether to print on both sides of the card is almost always answered with "yes." A dual-sided card can carry a photo, name, and title on the front and a barcode, secondary data, or compliance text on the back - while the magnetic stripe handles the machine-readable data layer silently. Single-sided printing is perfectly appropriate for loyalty or membership cards where the back doesn't require custom graphics and the stripe alone serves the data function.

Dual-sided printers cost more than their single-sided counterparts, so if your application genuinely doesn't require back-side printing, there's no value in paying for that capability. A conversation with an experienced team - like the one at CPE - that's seen thousands of card programs helps clarify what's truly necessary versus what seems like it might be useful.

Can I add magnetic stripe encoding to a printer I already own? In many cases, yes - several Evolis and Fargo models accept encoding modules as retrofits if the printer was originally built to accommodate the upgrade. However, not all printers support this, and it's always best to confirm before purchasing a base unit with the intent to upgrade later.

Does encoding require special software beyond basic card design tools? Your card design software needs to support encoding field mapping. Many professional tools - CardPresso, ID Works, Zebra's software ecosystem - handle this natively. If your organization uses a proprietary access control or POS platform, confirming API or driver compatibility before purchasing a printer ensures a smooth integration. For personalized guidance, call 800.835.7919.

Magnetic stripe encoding on card printers isn't a niche feature for specialized industries. It's the core function that turns a printed piece of plastic into a working, data-carrying credential. From hotel key cards to employee access badges to loyalty programs, the organizations that control their own card production operate faster, smarter, and more cost-effectively than those dependent on outside vendors.

CPE has spent more than two decades helping businesses of every size get the right hardware, the right consumables, and the right setup for their specific card programs. The depth of the lineup - Evolis, Fargo, Zebra, Matica - means there's a solution for every volume tier and application type, including every configuration of magnetic stripe encoding your program might require.

Plastic Card ID is ready to help you get it right from day one. Don't guess on a purchasing decision that will define your card program's capability for years. Call 800.835.7919 and speak with a team that has answered these questions for over 100,000 customers. The right printer, the right encoding setup, and the right ongoing supply chain are all within reach.

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