Oki 3037 - Manual (Page 31)

ES 3037/3037e Setting up • 31
d. Gently push the toner cartridge down, engaging the locking pin
into the groove on the image drum.
zmtoner cartridge install two.eps
e. Gently push the colored lever toward the rear of the machine
until it stops. This releases the toner into the image drum.
zmtoner cartridge install three.eps
CAUTION!
The lever should go back easily. If you meet any resistance,
stop and push down on the cartridge to be sure that it is
firmly in place before attempting to push the lever back.