Printron Omega

local chest = peripheral.wrap "minecraft:dropper_172"
local printer_side = "down"

--[[
printer slots:
slot 1 = dye
slots 2-7 = paper
slots 8-14 = output
]]

while true do
    for i = 8, 13 do -- extract printed output
        local moved = chest.pullItems(printer_side, i)
        if moved > 0 then print "Extracted a page!" end
    end

    for slot, item in pairs(chest.list()) do
        if item.name == "minecraft:paper" then
            local moved = chest.pushItems(printer_side, slot, 64, 2)
            if moved > 0 then print("Inserted paper!") end
        elseif item.name == "minecraft:dye" then
            local moved = chest.pushItems(printer_side, slot, 64, 1)
            if moved > 0 then print("Inserted dye!") end
        end
    end

    sleep(2)
end