Specs
Backlit ICC specs
Setup notes and briefing numbers for Backlit ICC.
Backlit film profile checkpoints
Working details behind the Backlit ICC setup show the profile points that matter before backlit work goes onto large-format printers.
Backlit work needs a profile that reads correctly once the lightbox is on, not only on the bench. These specs cover media class, ink limit, pass mode, and viewing conditions that matter on translucent film and polyester stock used on South African display jobs. In Gauteng, dry air and dust can shift a result between morning and night runs, so the setup notes need to be checked against the actual machine state.
The first proof should be judged both unlit and illuminated, because blocked shadows often only show under LEDs. A small note beside the printer with heater values, linearisation reference, and the selected queue name helps when a FastJET, Stormjet, or Skywalker is restarted after load-shedding. That record is more useful than a general print guide when a team is trying to match a previous panel.
What the specs pin down
The working numbers behind the Backlit ICC setup let operators confirm the right combination before committing roll length. Profile intent, media direction, and density targets need to hold up on illuminated retail graphics, menu boxes, and display faces. The aim is to avoid over-inking, muddy blacks, and patchy light transmission on the finished piece.
Check the matching output route in Profiles, then compare any machine-specific remarks in Presses before printing a full set of swatches from Swatches.
- Backlit film, PET, and translucent stock notes
- Lightbox check before full production metres
- Machine photos linked to exact setup
SA conditions that shift output
A backlit profile that behaves in Crown Mines may need closer watching when the same media goes to Durban humidity or Cape Town winter damp. Dispatch schedules through OR Tambo and warehouse handling around Sunnyrock also matter, because rolled translucent prints can mark if they are packed before they have settled properly. These specs are written for working print rooms, not ideal lab conditions.
Coastal moisture can slow drying and change how quickly a dense backlit laydown reaches a stable look under LEDs. Inland dust can show up first in the lighter image zones, so nozzle condition and wipe routines need checking before profiling or reruns. After a power cut, print a verification strip rather than assuming the previous density is still holding.
Operated by Astros Marketing (Pty) Ltd from 2 Makro Place, Sunnyrock 1401.
Information needed before profiling
Send the media name, width, printer model, RIP queue, and whether the job will be viewed with LED modules or fluorescent tubes. Mention if the issue is bronzing, weak blacks, colour shift when lit, or uneven density across the width. A brief note on what failed on the last run helps narrow the right spec point much faster.
While test strips, lamp checks, and RIP settings are still visible, save the calibration record with the job file. That makes it easier to trace density targets, pass mode, and media notes when a buyer asks why the backlit panel matched on one machine and shifted on another.
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