HOW TO REFILL HP 12A TONER CARTRIDGE.(Full Demonstration with Photo)

HP 12A cartridge is the most successful toner cartridge for hp laserset printers which can fit different models like HP LaserJet 1012, 1018, 1020, 1020+, 1022, 3015, 3020, 3030 printer series and 3050, 3052, 3055 AIO, M1319F MFP, printer series and also Canon 2900b.

And I will show how to refill the cartridge with 100% successful way with photo demonstration.
Material Required:
1)screw driver.Stanley 69-189 Ratcheting Multi-Bit Screwdriver
2)Tweezer.Compact Straight Extra Fine Point Slim Tweezer
3)Toner Powder.HP Toner Refill 12A 1018 1020 1022 3015 3050 3052 3055 for laserjet cartridge 4)Drum Gino Repairing Printer OPC Drum Part for HP 1010 1012 1015if required.
5)Brush.Silver Brush 9090S-034 Faux Finish Short Handle Blending Mop, 3/4-Inch 
6)Cloth Soft-Tek Micro Fiber Cleaning Clothfor cleaning.

Step 1:Unscrew the both end of the hp 12 toner cartridge. Total you will find 4 screws.

Step 2:Open the drum side cover by just pulling it from drum gear side.
Step 3: Get out the drum by simply sliding the drum by side.

Step 4: Remove the magnetic roller by slightly making gaps and inserting the twiser on the other side of the hp 12 a toner.

Step 5:Remove the magnetic roller washer by the twiser.

Step 6:Open the other end of the cartridge by pulling it gently until it separated.

Step 7 : Seperate the other end of the hp 12 a toner cartridge. Do not remove the gears.

Step 8 : You have successfully separated the cartridge.Then you will get two part, one is waste toner part and other is empty toner part.

Step 9 :Get out the tension spring located at waste toner part.

Step 10:Remove the drum pressure roller from the waste toner part of the hp 12 a cartridge.

Step 11:You will see the wiper blade just below the pressure roller. Unscrew and remove the wiper blade and clean it by soft cloth. Do not twist the transparent blade part.

Step 12: You will see waste toner dust beneath the wiper blade.Remove the waste dust completly with the help of brush.And clean it gently by a soft cloth . Do not   damage the plastic film blade that is stick on the cartridge.

Step 13:Fix the wiper blade and fasten the screw gently.

Step 14: Clean the drum pressure roller by soft cloth and check for any dry sticky dust on the roller. If necessary clean the roller by a wet cloth.

Step 15: Fix the peassure roller to its position.

Step 16: Make emty the tonner unit is any dust remains.
Step 17:Shake well the tonner dust before refilling. Pour the dust by help of a piece of paper.

Step 18: Assemble the both unit of the cratridge gently.Check for correct adjustment i.e, no gaps remains on the either sides of the hp 12 a toner cartridge.Do not make excess pressure during assembling, simply make the position it will get its position softly.

Step 19: Clean the magnetic roller with a soft cloth.Do not rub hard thoroughly.

Step 20:Fix the gear and washer of the magnetic roller.

Step 21: Fix the magnetic roller gently. Locate the spring part of the magnetic roller 'D' shaped. Match the shape with the cartridge body.

Step 22: During fixing of the magnetic roller you have to make slight gap so,that the gear gets its right position.

Step 23: If necessary use a new drum for the best result. Place the drum by gently sliding to the cartridge body.Do not touch the drum area, hold the drum by its gear.

Step 24:Fasten all the screws.

Step 25:Place the tension spring by the help of a twiser.

Step 26: Just get test print....Enjoy.