to begin remove the spring on the side of the cartridge unlock the spring on the other side of the cartridge the top half of the spring willstay under the blue handle extract the 2 pins using small pliers they are in this position
hp color laserjet cp1215 printer cartridges, note the different pin sizes the short pin is on the left side the long pin is on the right side separate the two halves of the cartridge
toner section and drum section remove the metal pin indicated by the red arrow using a small hammer and a screwdriver punch the drum pin out halfway, through its hub rotate the drum, so the pin is visible extract the pin, using pliers these pins are in tight and are hard to remove remove the drum axle remove the drum
remove the 2 screws remove the support plate remove the developer cylinder with its bushings if you want to remove the doctor blade remove its 2 screws but this blade is glued, and easy to be warped or damaged i suggest you not to remove it clean the edge of the metal blade with isopropyl alcohol make attention not to damage this mylar sealing blade
clean out all the remaining toner from the cartridge it's better to use compressed air if possible use a toner work station cleaning all the old toner is very important the toner left in the cartridge, is mostly waste toner and if you have 2 different type of toner in the cartridge, the same time, the quality will be compromised you can also clean the cartridge at open-air the best you clean the cartridge, the best quality you'll have
do not breathe the toner dust clean the developer cylinder with isopropyl alcohol the developer cylinder carries the toner from the supply chamber to the drum be careful not to damage the recovery blade that is located next to the wiper blade if this blade is bent in any way, the cartridge will leak install the developer cylinder move the cylinder until it's fully seated in the drive gear install the end cap and the 2 screws
in this cartridge there is no refill hole drill a hole in this position fill the cartridge with toner the gram load is 175 grams for the black and 135 grams for the colors use a tape to close the refill hole turn the roller by hand several times to make sure it's correctly installed clean the charge roller with water
the charge roller places the initial charge on the drum as well as erase the residual charge at the end of a cycle lubricate the drum with toner or the wiper blade may damage it it's better to replace the drum but if you want to reuse it, here you'll find instructions on how to clean a drum install the drum in the cartridge slide the drug axle into the drum
allign the drum hub and axle so that the holes line up insert the metal pin, and tap it into place place the toner section on the drum section reinstall the 2 pins this cartridge has a chip it has to be replaced every time you refill the cartridge using a small blade carefully insert the blade under the chip, and lift it out
insert the new chip apply a small amount of glue under the chip allow the glue to dry, before testing the cartridge and the work is done
