Cartridge tester for canon pg40/41 series Check the cartridgeâ´s model, circuit and nozzel Model number: can check canon30/40 37/38 40/41 50/51 70/71 90/91 835/836 835xl Advantages: 1. Check printing quality of final products instead of the slow printers. Save time and money 2. Portable design, you can take it into any place easily & do testing, save space and convenient 3. Check empty ink cartridge quality at 100% rate. Save money from the better empty cartridge quality control. 4. Testing is fast. In 2 seconds you can check 1pcs. Save much time and labor cost. 5.Circuit good, printhead good, but after spenting much money in production, it print bad, some color missed, Maybe you met this problem in production, this tester can help you . Cartridge tester for canon pg40/41 series to checking empties circuit and printhead Specifications: Empty ink cartridges tester 1. For check 40/41/30/31/50/51/70/71/90/91/37/38/830/831 2. Detect the resistance value Has a usb interface, more convenient to use: Cartridge tester for canon pg40/41 series to checking empties circuit and printhead cartridge tester for canon pg40/41 series to checking empties circuit and printhead A. Two language options: chinese and english After power on, two languages for choice B. In the first 4 seconds, every time when pressing the Cartridge, it will switch between chinese and english Test result will display as soon as pressing the cartridge in the slot. Nozzel : A: bbbb: black nozzle work well. C: ccmmyy: color nozzle work well. B: - b- b: some of black nozzle is bad. D: --mm--: cyan and yellow nozzle has problem. Shipping ways: Cartridge tester for canon pg40/41 series to checking empties circuit and printhead Cartridge tester for canon pg40/41 series to checking empties circuit and printhead