Engineering Research · March 2026

Research & Engineering Articles

In-depth technical analysis covering the physical sciences, materials engineering, and mechanical systems that underpin modern digital printing technology.

Wide-angle overhead view of an engineering research laboratory workbench with printhead samples, spectrophotometer equipment, color calibration targets and technical drawings spread across a clean white surface
Published Articles

Current Issue — Vol. 8, March 2026

Four peer-reviewed engineering articles from the EpsonPrinterRepair editorial board, covering the complete technology stack of modern inkjet output systems.

Scanning electron microscope image of a piezoelectric printhead nozzle array showing circular orifice openings of approximately 20 micrometers diameter etched into a silicon substrate
Piezoelectric Engineering

The Physics of Micro-Piezoelectric Printheads

An engineering analysis of how thin-film PZT membranes convert electrical waveforms into precisely calibrated mechanical displacement and pressure pulses at the nozzle interface. Covers actuator geometry, drive waveform design, and acoustic crosstalk suppression.

Spectrophotometric measurement setup with color calibration chart showing CMYK ink patches on coated paper stock, arranged in a systematic grid pattern under controlled studio lighting
Color Science

CMYK vs RGB: The Science of Color Reproduction

A rigorous examination of subtractive versus additive color models, gamut mapping between ICC color spaces, and the quantum physics of how pigment molecules interact with photons of visible light. Includes CIE Lab analysis and rendering intent theory.

Test Your Engineering Knowledge

Five questions on piezoelectric physics, fluid dynamics, and CMYK color science. Calibrated for engineers and research professionals.

Take the Color Science Quiz