How do I replace the photoconductor where is the

Power the printer on and get it to the Ready state. With the printer on and in the Ready state, open the front cover.
Press and hold the Cancel button until all of the lights begin flashing up and down.
Release the Cancel button and close the door. The photoconductor count should now be reset.
To confirm that the photoconductor page count has been reset, it is recommended that you print a menu settings page and check the photoconductor level. Do the following:
With the printer at the Ready status, press the Continue button once. The Ready light will begin flashing and one or two pages will print out.
Look for a section labeled Cartridge Information and locate the word Photoconductor under this heading.
Confirm that the photoconductor level reading is either OK or close to 100%.
If the reading is low, try printing 10 - 20 pages. Print the menu settings page(s) again.
Confirm that the photoconductor level reading is OK or close to 100%.
Good luck, Gerrit Jan