Independent service for the coders that date, lot and serialise your packaging. Faded codes, failed verification and dead units, diagnosed by measurement on current platforms and on the large legacy fleets still running production.
Laser coders mark date, lot, batch and serialisation data directly onto packaging as it moves. There is no consumable ink, so the running cost is low and the failure modes are different: they are optical, thermal and electronic rather than fluid.
The three source types on packaging lines each mark a different substrate. Sealed CO2 is the workhorse for board, paper, glass and many films. Fiber marks metals and some plastics. UV marks heat-sensitive materials and gives high contrast on films where CO2 would damage the substrate. Knowing which one is in the cabinet is the first step in any diagnosis.
Product dust, paper fibre, condensation and vapour on the exit optics. The most common cause of a coder that has quietly lost contrast, and the cheapest to fix once confirmed.
Fume extraction that has lost flow puts debris back on the optics and changes the mark. Presents as an optics fault, is really an airflow fault.
After a line change, a guide adjustment or a knock, the marking distance is no longer what the job expects. Contrast drops without any component having failed.
Scanner drift, field distortion and positional error. Shows as distorted characters, drifting position or codes that fail verification.
Genuine output loss over the source's life, measured against the machine reference rather than inferred from the mark.
RF drive on CO2 sources, pump drive on fiber, and the supplies behind both, including age-related capacitor failure in long-serving units.
Air or liquid cooling paths, filters and fans. Thermal derating shows as a coder that works at the start of a shift and fades through it.
Line interfaces, encoder and trigger inputs, interlocks and the control PC or embedded software on units well past their original support.
Independent service on the laser, optical, thermal and control hardware. Model names identify equipment.
Three of the largest coder fleets on packaging lines are models their manufacturers have moved to legacy status. Domino lists the D120i, D320i, D520i and D620i on its own legacy pages, superseded by the Dx-Series. Videojet's 3120 and 3320 were superseded by the 3140, 3340 and 3640. Markem-Imaje's 7031 family, including the 9.3 and 10.2 micron wavelength variants, predates the SmartLase generation. Panasonic publishes its own discontinued list covering the LP-S, LP-Z, LP-M, LP-GS, LP-V, LP-W, LP-200, LP-300, LP-400 and LP-F. None of that stops the machines working, and all of it changes how spares are planned.
KBA-Metronic was renamed Koenig & Bauer Coding in July 2018, but the old kba-metronic.com site is still live and still shows pre-2018 laser pages. If you are working from documentation found there, check it against the current Koenig & Bauer Coding material before ordering anything.
Repair on this equipment is not one job. It is a set of different jobs, and which one you need depends on what the evaluation finds. The table below is the honest version of what that work looks like: what gets opened and put right, and what gets taken out and replaced. Which column a given fault lands in is decided by measurement, not by preference.
| Subsystem | What typically gets repaired | What typically gets replaced |
|---|---|---|
| Marking source | Output measured against reference, cooling and connections corrected, protective optics attended to | Sealed CO2 tubes, fiber and UV source modules, pump diodes, protective windows, collimators |
| Scan head | Scanner recalibrated, alignment and focus reset, mounting corrected | Galvo scanner assemblies, scan lenses, mirrors, protective windows, focus optics |
| Driver and supply | Driver boards repaired at component level, supply rails and terminations corrected | Driver and RF boards, supply modules, capacitors, fans, cabling and connectors |
| Line integration | Trigger, encoder and reject interfaces traced and corrected, timing and position on the line reset | Photocells and trigger sensors, line encoders, interface boards, cabling, mounting and adjustment hardware |
| Extraction and enclosure | Fume extraction flow restored, enclosure sealing and viewing windows made good, interlocks restored | Blowers, filters and media, ducting, laser-safe viewing windows, interlock switches, safety relays |
| Cooling | Air and liquid cooling paths cleared, temperature control returned to spec | Fans, filters, chiller pumps, heat exchangers, hoses, sensors |
| Controller and software path | Controller faults traced, marking configuration and job files restored from your own backups | Controller boards and PCs, HMI and display units, storage media, network and I/O interfaces |
Two rules run through all of it. Anything we replace is documented with what came out and what went in, and anything we repair is validated by measurement afterwards rather than by whether the machine switches on. If a part turns out to be a failed custom assembly with no substitute available, we say so in writing instead of billing an attempt.
A discontinued part is a sourcing and engineering problem, not automatically the end of the machine. Depending on the item, the route is a current-production equivalent fitted and verified, a qualified substitute with the differences written down, a harness or cable made to suit, or a board repaired at component level because the board itself is no longer sold. We tell you which of those we are proposing before you approve it.
Most packaging coders run as Class 1 enclosed systems in normal production. Service work opens that enclosure. It is planned and executed under a project-specific laser safety plan agreed with your plant, with wavelength-rated eye protection, a defined and terminated beam path and controlled access. Final hazard analysis and approval stay with your own EHS function.
PhaseX Laser Services is an independent third-party service provider, not affiliated with or authorized by Esko, Miraclon, Kodak, Hell, SPGPrints, Domino, Videojet, Markem-Imaje or any other manufacturer named on this page unless expressly stated in writing. Brand and model names identify equipment only.
Frequently yes. Coders are built from a sealed source, a galvo scanner, a controller and a supply, and those are serviceable at component level. Several of the largest fleets on packaging lines are models the manufacturer has moved to a legacy page, which means spares planning matters but does not mean the machine is finished.
Not necessarily. Faded marking is as often a contaminated output window, a lens that has collected product dust, extraction that has lost flow, or a focus that has drifted after a line change. Measuring delivered power and inspecting the beam path separates those from genuine source decay.
Usually the coder can be isolated, evaluated and worked on while the rest of the line is down for a planned window. We agree the access window and the safety arrangements with your plant before we arrive.
We handle the laser, optical, thermal and control hardware and the interfaces to your line. Message content, product data and code verification stay with your own systems and quality function.
Send the coder model and serial number, the substrate, and a photograph of the mark as it looks now. We respond with the next step and a fixed evaluation fee before anyone travels.
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