AS-4000 User’s Guide Product Overview 14 Item Explanation Color measurement target The following adhesive substrates ❏ High quality paper ❏ Cast paper ❏ Coated paper ❏ Film (white) ❏ For metallic glossy substrates, transparent film substrates, and substrates other than white, you can still use the main functions by applying white ink to the base of the substrate, but the color reproduction accuracy will decrease. ❏ For paper substrates, we recommend printing in 8-pass color printing mode. When printing with 2, 4, or 6 passes, the color reproduction accuracy will decrease.
Substrate Width 80 to 330 mm (however, a paper width of up to 334 mm can be fed) Color measurement method Monochromator method using wavelength scanning Geometric conditions for color measurement 45˚ (irradiated)/0˚ (illuminated), Cyclic lighting Illuminant D50 Color measurement diameter 7.6 mm Measurement items Spectrographic reflection spectrum (400 to 700 nm, 10 nm intervals) Spectrographic element MEMS Fabry-Perot Tunable Filter Color measurement repetition accuracy Undisclosed Color measurement device difference Undisclosed Operation control method Operations controlled by press (this product is not equipped with a controller) Color measurement position control in paper feed direction When the registration mark sensor detects a registration mark during paper feeding by the rewinder on the press, feeding stops at the color measurement position.
Color measurement position control in paper width direction The carriage scans the spectrum sensor module in the paper width direction (LGB (Leading Gray Bar) detection + fixed timing method) Periodic replacement parts and replacement frequency Spectrum sensor module and white calibration tile (replace as a set every seven years)