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Inline Spectrophotometer for Digital Press Manufacturers
Inline Spectrophotometer for Digital Press Manufacturers
SpectroEdge has been designed for inclusion inside a wide variety of digital print engines. It is a compact and highly accurate scanning spectrophotometer that can measure 3,000 samples per-second which allow it to measure at full production press speeds. Inclusion of SpectroEdge inside a digital press allows for linearization, calibration, ICC profiling, and color quality measurements to occur in real-time and without operator intervention for increased color accuracy, increased color consistency, and a more seamless user experience.
Benefits of Inline Color Measurement

    Automation for Increased Color Accuracy & Consistency
  • Integration inside the press allows for automated spectral color measurements
  • Allows for closed-loop color control without user intervention
  • Automate the linearization, calibration, and ICC profiling process
  • Increases color accuracy and color consistency of the press
  • Measurement process is 100% automated & relieves burden from the operator

The Heart of In-Press Color Control

    Solution Components
  • ES7500 scanning spectrophotometer
  • Optional traverse arm for movement across material width
  • Software Developer Kit (SDK) to control: ES7500, traverse arm, and receive measurement data

  • Measures at 3,000 samples per-second to accommodate full production press speeds
  • Non-contact design operates at 3mm height, accommodating +/- 0.5mm change in distance from media
  • Simultaneous measurements of spectral (400nm – 700nm), CIE L*a*b*, CIE L*C*h, and Status T & E densities
  • Automatic calibration of integrated ISO white reference plaque
  • Compact size allows for placement inside digital presses (165 x 99 x 59 mm)
  • Tough, all-metal construction withstanding vibration, and even the impact of a broken web
  • Thermally rugged, can be placed in close proximity to IR dryers
ISO-compliant spectrophotometer measurement unit
Spectral remission and color density determination to ISO 5-3/4 standards
Measurement geometry 45/0˚ to DIN 5033
Spectral range 400 to 700 nm (reporting every 10nm)
Measurement conditions according to ISO 13655:2009:
  • M0 – No filter, UV included
  • M1 – Daylight, D50
  • M2 – UV Cutoff filter, UV excluded
Measurement sampling rate 3,000 samples/second
Measurement aperture 1.5 mm x 3.0 mm
Minimum color patch width 4mm
Minimum color patch length 4mm – 10mm. (Patch size varies depending on press speed)
Distance from media 3 mm
Light source LED
Short-term repeatability 0.05 ∆Eab on white BCRA tile
Inter-instrument agreement 0.30 ∆Eab average on 12 BCRA tiles
Calibration Automatic on integrated ISO white reference plaque
Operating environment 0˚ to 40˚ C (non-condensing humidity)

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