Here is the detail remanufacturing Instructions for HP toner cartridge LaserJet 8500 black :
1. Remove the shutter/developer roller end cap on the non-geared side of the cartridge. It is not necessary to remove the two screws located near the end-cap.(Fig.1)
2. To remove the developer roller shutter, gently push up on the metal connecting rod to open the shutter.
3. Once open, push the rod toward the geared end of the developer roller, this will allow the shutter to become detached from the end-cap.
4. With the shutter door in the open position, disengage it from the shutter actuator arm.(Fig.2)
5. Locate and remove the four screws from the non-geared end of the cartridge.
6. Once the screws have been removed, gently pry of the end-cap.(Fig.3)
7. Remove the cartridge end-cap. Be careful not to lose the small black bearing that rides in a recessed area in the developer roller magnet housing. The bearing is unattached and will fall out easily.(Fig.4)
8. Locate and remove the three screws on the opposite end (geared end) of the cartridge. Note:It is not necessary for the shutter actuator arm to be removed, it may remain attached to the end-cap. Although it is not necessary to remove this end-cap to take out the developer roller, it is recommended to facilitate cleaning the contacts that are located on the inside of the end-cap.(Fig.5)
9. While removing the end-cap be careful as none of the drive gears are secured to the hopper. Also, be careful not to lose the developer roller contact spring, located on the end of the developer roller. As on the non-geared side of the developer roller, there is also an unattached bearing that resides in an indention in the end-cap, do not lose this.
10. Clean off all contamination from the contacts using 99% IPA and a cotton swab, take care not to leave any lint in the contact area.
NOTE:Be sure you have cleaned the developer roller contact spring thoroughly. (Fig.6)
11. If you do not want to remove the drive gears, it is possible to remove the developer roller and then re-attach the end cap for filling through the developer roller opening.(Fig.7)
12. Remove the developer roller. (In this photo, the end-cap on the geared side has not been removed.)
13. Clean both the roller and inside of the toner hopper with clean, filtered compressed air.(Fig.8)
2. To remove the developer roller shutter, gently push up on the metal connecting rod to open the shutter.
3. Once open, push the rod toward the geared end of the developer roller, this will allow the shutter to become detached from the end-cap.
4. With the shutter door in the open position, disengage it from the shutter actuator arm.(Fig.2)
5. Locate and remove the four screws from the non-geared end of the cartridge.
6. Once the screws have been removed, gently pry of the end-cap.(Fig.3)
7. Remove the cartridge end-cap. Be careful not to lose the small black bearing that rides in a recessed area in the developer roller magnet housing. The bearing is unattached and will fall out easily.(Fig.4)
8. Locate and remove the three screws on the opposite end (geared end) of the cartridge. Note:It is not necessary for the shutter actuator arm to be removed, it may remain attached to the end-cap. Although it is not necessary to remove this end-cap to take out the developer roller, it is recommended to facilitate cleaning the contacts that are located on the inside of the end-cap.(Fig.5)
9. While removing the end-cap be careful as none of the drive gears are secured to the hopper. Also, be careful not to lose the developer roller contact spring, located on the end of the developer roller. As on the non-geared side of the developer roller, there is also an unattached bearing that resides in an indention in the end-cap, do not lose this.
10. Clean off all contamination from the contacts using 99% IPA and a cotton swab, take care not to leave any lint in the contact area.
NOTE:Be sure you have cleaned the developer roller contact spring thoroughly. (Fig.6)
11. If you do not want to remove the drive gears, it is possible to remove the developer roller and then re-attach the end cap for filling through the developer roller opening.(Fig.7)
12. Remove the developer roller. (In this photo, the end-cap on the geared side has not been removed.)
13. Clean both the roller and inside of the toner hopper with clean, filtered compressed air.(Fig.8)
Edited by INKOFFICE-toner ink cartridges
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