Refilling the HP 126A Magenta LaserJet Print cartridge, namely HP CE310A / CE311A / CE312A / CE313A or the HP LaserJet Pro CP1025. We show you how to fill these cartridges at the example of yellow cartridge CE312A.

Yellow CE312A cartridge shown in Figure 1.

Figure 1

Unbolt the two bolts and remove the side cover (Figure 2, 3). 

Figure 2.

Figure 3.

Move the transfer roller and carefully remove it (Figure 4).

Figure 4.

Unbolt the bolts that hold the doctor blade (Figure 5, 6).

Figure 5.

Figure 6.

Clean all toner from the hopper, the doctor blade and from the transfer roller (Figure 7).

Figure 7.

Fill with the toner. We’ve used the toner for HP1215.
Insert the doctor blade on its place. Pay attention to its place and if you fix as shown in Figure 8, 9 into the transfer roller will come a lot of toner and it will printing as shown in Figure 10 (yellow and red).

Figure 8.

Figure 9.

Figure 10.

You need to fix the doctor blade as shown in Figure 11, 12

Figure 11.

Figure 12.

Clear the transfer roller and insert it on its place. You need to tighten the side cover with the bolts. Scroll the transfer roller and see results (Figure 13).

Figure 13.
As a result it should be as shown in Figure 14.

Figure 14.