An industrial inkjet printer is one of the few pieces of equipment that touches every unit you ship. Choose the wrong one, and the cost shows up as unplanned downtime, rejected batches and consumable bills that never stop growing. Choose the right one, and coding becomes a quiet, reliable part of the line.
This guide walks through the six decisions that separate a good purchase from an expensive lesson. It is written for production, maintenance and procurement teams who need a clear framework — not a sales pitch.
1. Start with the product, not the printer
Before comparing models, document what you are actually coding:
- Substrate: porous (cartons, paper, wood) or non-porous (PET, glass, metal, coated film). Adhesion depends on surface energy, not on brand claims.
- Shape: flat, curved, recessed or irregular. Small character CIJ handles curved surfaces well because the print head never touches the product.
- Code content: batch number, expiry date, lot code, bar code, QR or Data Matrix. More data means more print head passes and tighter speed limits.
- Environment: wash down, steam, dust, vibration, ambient temperature, condensation.
- Line speed: the maximum products per minute you must support on the busiest shift — not the average.
Write these five points down. Every credible supplier will ask for them, and vague answers are the most common reason projects fail.
2. Match the technology to the job
| Technology | Best for | Typical substrates | Consumables | Watch-outs |
|---|---|---|---|---|
| CIJ (continuous inkjet) | High-speed, curved or non-porous products | Cables, cans, bottles, caps, film, eggs | Ink + solvent | Daily checks; solvent handling |
| TIJ (thermal inkjet) | Cartons, labels, porous packaging | Paper, cardboard, some films | Cartridge | Lower speed; print height per cartridge |
| Laser | Permanent, high-contrast marks | Metal, glass, some plastics, coated board | None | Higher CAPEX; material compatibility |
| UV / piezo | High-resolution codes on sensitive surfaces | Labels, films, pharma packaging | Ink | Ink curing and lamp maintenance |
Most production sites end up with a mix: CIJ for the filling line, TIJ or laser for secondary packaging. Treat the first purchase as the anchor of a coding strategy, not an isolated machine.
3. Define the print specification precisely
Give suppliers a written specification before they quote:
- Character height (typically 1–10 mm for small character systems)
- Number of lines and maximum characters per message
- Required resolution and contrast
- 2D code grade if you print DataMatrix or QR
- Print position tolerance at maximum line speed
Ambiguous specs produce optimistic quotes. A supplier who asks about code grade and tolerance is a supplier worth keeping.
4. Check integration before you sign
- Speed: compare the printer’s rated speed at your message length, not the brochure maximum.
- Triggering: photocell, encoder or PLC signal — and how the printer compensates for variable gaps.
- Mounting: bracket space, print head distance, cable routing and access for maintenance.
- Environment: IP rating, stainless steel construction and wash down protection.
- Connectivity: Ethernet, serial, I/O, OPC-UA or MES integration if you need traceability.
- Utilities: compressed air quality, power supply, ventilation for solvent-based inks.
Integration surprises are expensive. Ask for a dimensioned drawing and confirm it against your line before the order is placed.
5. Calculate total cost of ownership, not purchase price
A coding machine is a five- to ten-year asset. Compare offers on annual cost:
Annual cost = consumables + spare parts + service + training + downtime cost
Items that are frequently underestimated:
- Ink and solvent consumption per shift, including cleaning losses
- Filters, pumps, nozzles and printhead modules
- Service contracts and response time
- Operator time for daily checks
- Cost of a line stop per hour — usually far larger than any of the above
A machine that costs 20% more but reduces downtime by two hours per month usually wins on the spreadsheet.
6. Evaluate the supplier, not just the machine
Use a 10-point checklist:
- Sample test on your own products
- Reference sites in your industry
- Local spare parts stock and stated response time
- Training included for operators and maintenance
- Warranty terms covering printhead and pumps
- Software updates and long-term parts availability
- Compliance documents for inks (food contact, safety data sheets)
- Open, documented protocol for integration
- Transparent consumables pricing without lock-in surprises
- A named engineer accountable for your account
7. Run a sample test — the cheapest risk reduction available
Send real products, with real surface conditions, and ask for:
- Actual line speed during the test
- Adhesion check (rub test, tape test, condensation test)
- Readability of barcodes or 2D codes with a verifier
- Photos and retained samples for your records
A supplier who cannot run a sample test on your product is asking you to buy the problem.
Frequently asked questions
How much does an industrial inkjet printer cost? Entry-level CIJ systems typically start in the low thousands of US dollars, mid-range and high-speed models cost more, and laser systems usually require a larger initial investment. The purchase price is only part of the total cost — request a TCO comparison, not a single number.
CIJ or laser: which should I choose? If the code must survive harsh handling or the substrate is metal or glass, laser is often the better fit. For curved, non-porous or heat-sensitive products at high speed, CIJ usually wins. Many lines use both.
How long does installation and commissioning take? A single CIJ printer can be installed and commissioned in a day; laser systems and multi-line projects typically need more planning, integration and safety validation.
Can one printer serve multiple lines? Occasionally, but the printing window shrinks as distance grows. Dedicated printers per line are usually more reliable and easier to maintain.
The next step
The fastest way to move from research to a decision is a sample test on your own product. WDOTMARK supplies CIJ, TIJ and laser coding systems for manufacturers worldwide. Send us your substrate, code content and line speed, and we will recommend the right configuration — and prove it on your product before you commit.
Contact WDOTMARK for a sample test and configuration proposal.
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