bids are invited for annual maintenance service - desktops, laptops and peripherals - work station; dell , annual maintenance service - desktops, laptops and peripherals - desktop pc; hp , annual maintenance service - desktops, laptops and peripherals - printer ( monochrome , laser , composite cartridge ) ; hp and canon , annual maintenance service - desktops, laptops and peripherals - multifunction printer ( monochrome , laser , composite cartridge, mid range ) ; canon , annual maintenance service - desktops, laptops and peripherals - multifunction printer ( monochrome , laser , separate drum & tonner, mid range ) ; samsung , annual maintenance service - desktops, laptops and peripherals - printer ( colour, laser, composite cartridge ) ; hp , annual maintenance service - photocopier machine - photocopier machines ( monochrome , laser , separate drum and tonner ) ; xerox; neither oem nor asp , annual maintenance service -data center assets - storage & backup devices; storage-system; neither oem nor asp , annual maintenance service -data center assets - network devices; layer-2-access-switch; neither oem nor asp , annual maintenance service - audio conferencing system - projector; hitachi; neither oem nor asp , annual maintenance contract for networking devices ( version 2 ) - routers; wifi router 300mbps , annual maintenance contract for networking devices ( version 2 ) - i o box; other