digital printing graphicsart
TRANSCRIPT
Digital Printing &Graphics ArtGraphics Art
� Monitor Vs Printer� Monitor: Low Spatial Resolution with High Depth
� 72 Dpi (Dots per inch) and 8-bit Greyscale
� Printer: High Spatial Resolution with Low Depth
� 1200 Dpi and 1-bit Greyscale (Dot or no Dot)
~ ratio of 16
Printer Pixel0 or 1
Monitor Pixel0 to 255
16 x16 Array for 8-bit grey shades
� Continuous Tone Vs Dots Pattern� Stochastic Sampling by Frequency Modulation, such that
the sampling density is function of the grey shade 8-bit.
� Error Diffusion
� Direct Binary Search
� ......
~ ratio of 16
Printer Pixel0 or 1
Monitor Pixel0 to 255
� Visually pleasing pattern
� Cones sampling in the fovea� Poisson Disc Sampling or Blue Noise
� In General� Drop Speed: 5 to 9 meters/second
� Firing Frequency: 21 KHz
� PrintHeads� TIJ – Thermal Inkjet - 1200 Dpi - Cheap
� HP, Canon
Digital PrintingInkjet PrintHeads & Feed
� HP, Canon
� Piezo – 1440 Dpi - Expensive
� Epson, Fuji
� Mems – Microelectromechanical Systems - 1000 Dpi - Cheap
� Memjet, Kodak, Fuji, Epson,...
� Feed� Piezo PrintHeads still the best choice for content sensible
to heat and abrasion
� Bioprinting (organs, tissues, membrane proteins,...)
� In General� 80% Black and White
� High expectation from Printer Manufacturers
� In reallity� Poor acceptation
Digital PrintingGraphics Art Market
� Poor acceptation
� Very few people are willing to pay more than 1000 euros for a digital print.
� Why?� Falsification
� What is the original?
� Solutions� Asymetric Key Encriptation – Public and Private
� Did not convince – still numeric and intangible
� Bubble Tag� Much more accepted - Label of quality and control
Wine, painting, jamon iberico? But no digital printing
Digital PrintingGraphics Art Market
� Wine, painting, jamon iberico? But no digital printing
� Digital Negative – Cyanoprint - Finally� Vintage process - Original and unique
� No support from Printer Manufacturers
� Min price – 600 euros
� Max price between 15000 and 20000 euros
� Elliot Erwit: Maryline Monroe photos
� Personalization gives value to the product� HP, Canon, Epson (the club) are not targeting small
markets, below 100MM $.
� Still room to do things!
� Youtube his full of home made or hacked printers � Printed Circuit Board, foods, 3D printing, ...
Digital PrintingWhat does my story says?
� Printed Circuit Board, foods, 3D printing, ...
� Personalization
� E.g. Printing Buildings � D-shape is a (huge) Italian 3D printer, capable
of printing a set of house modules in 1 month
� Some parts of the Sagrada Familia are printed
with this technology.
� Green compound (sand and vegetal glue)
� concrete strenght and marble appearance
� Basically
� A printer is a box� Right to Left, Left to Right, Move the paper
� Standard medias and controlled orientation� Iso Size
� Media is constrained to the printing box
The printing box is static (desktop usage)
Digital PrintingPersonalization
� The printing box is static (desktop usage)
� Paradigm shift
� An inkjet mobile device� Wall, street, direct printing
� The device adapts itself to the support� Horizontal, vertical printing
Digital PrintingParadigm Shift
� Would it be possible, for a build cost inferior to 100 euros to develop a mobile printing device having:
� An Archimedean Spiral as a scanning path, such that: � At least, the printhead cover 3 succesive turns
� Increase Spatial resolution
Multitoning (2-Bit greyscale)� Multitoning (2-Bit greyscale)
� A Mounting/Fixing process offering:� Support flexibility, adaptation
� Multiple configurations
� Interchaneable PrintHead� OLED Printhead and support activation
� Open cartridge content
Merci --)