InP/InGaAs photodetector on SOI circuitry

A page binding device for binding pages 11 from an inkjet printhead assembly 13. The device has an adhesive applicator 16 for applying adhesive to printed pages 11. The adhesive applicator 16 is adapted to eject adhesive onto the pages 11 as they are fed to the support tray. A page conveyor 12 for sequentially feeding pages 11 from the printhead assembly 13 to the support tray via the adhesive applicator 16. An air flow generator for generating an air flow 14 that prevents the pages 11 from contacting the adhesive applicator 16. Using an air cushion and a non-contact adhesive applicator avoids the paper buckling problems associated with contact adhesive applicators.