How to replace the transfer roller on HP laserjet Pro 400 printer

Here is the procedure te replace the old transfer roller (RM1-9175) with the new one on these HP printers: LaserJet Pro 400 M401a M401dn M401dw M401n M425dn et M425dw.

Do not touch the black surface of the new roller..


Step 1:

• Open the cover to remove the toner

Step 2: (see picture below)

• In the toner slot, lift and hold the hinged metal plate ( -1- in the picture)
• While holding the metal plate up, release the 2 black plastic tabs (-2- in the picture)
• Pull the black plastic sleeve up until it is free, then slide the transfer roller (-3- in the picture) up and to the right to remove it.

Step 3:

• Insert the black plastic sleeve onto the tip of the new transfer roller, then first install the left end of the transfer roller, followed by the right end of the transfer roller and the locking of the black plastic ring.