To operate the Cassette Heater Unit, the Heater PCB and Cassette Heater Attachment needs to be mounted.
1) Pull out the cassette 3 and 4.
2) While removing the hook by inserting the part indicated as [1] from the front side of the host machine with a flat blade screwdriver, detach the connector cover [2].
3) Fit the 3 hooks [2] of the heater unit [1] to the slit of the base plate to match the hole positions.
In the case of mounting the heater unit, make sure to check that the 3 hooks [2] are tightly fitted and there is no jiggle.
4) Mount the heater unit [1] with the screw (binding; M4X6) [2], and connect the connector [3].