The method used to is by reset the printer Error ink cartridges are not installed properly (error E5) : Step 1 : Push Power switch by continue (Push Power On/Off) Step 2 : inserrt plug(Hold and Press Power) step 3 : Push Reset button 1x, Let Power button, Push Reset twice till 0 Step 4 : Push + display change from 0 to 1 (push button + to change 0 to 1) Step 5 : Push Power switch again , Printer will be print 1 page (push power button–>start button till 1 page.) step 6 : Open cover Step 7 : Unplug power cable Step 8 : Take out ink PG 40 and PG 41 Step 9 : Insert plug again Step 10 : Push power switch Step 11 : Open cover (scan cover) Step 12 : Inksert ink PG 40 , PG 41 again These are the step How to Reset waste ink counter (error E16) : 1. Turn off power button (power button is in ), Press and Hold STOP/RESET then Push ON/OFF button 2. Hold ON/OFF button, press STOP/RESET button 2x 3. Let both of button and printer in to SERVICE MODE 4. Printer will be charging 5. Afte...