Litho Printing
Litho printing uses a technique where the inked image is placed on a printing plate (usually zinc/aluminium) in a series of dots, made from Cyan, Magenta, Yellow, Black (CMYK). this is then imprinted on a rubber cylinder and then transferred (offset) to the USB. It is suited to most USB materials.
Litho printing is an ideal method of print for images with gradients of colour. The image must be supplied as 'pixel' artwork made from CMYK separations.
See example to the right.
Where litho printing is an option, this is indicated on the product specification page for each USB flash drive.