OKIDATA PT390 Installation instructions

PT390/LD670 Disassembly Instructions
1. Remove the 3 screws on the base of the unit and remove the interface card.
2. Remove the 4th screw and remove base plate.

3. Remove 7 wired connections to main board as well as 4 screws and remove
board.
4. Remove 2 screws on inside of top cover.

5. Push down on the cover to release the 2 black tabs and then lift top cover molding
off.
6. Remove 2 screws.

7. Remove small plastic cover on rear of printer.
8. Slide the remaining black cover up the machine and over the top assembly to
remove it. I found it easiest to partially close the top cover to get it started and
then open the top cover to slide it up and over to remove.

9. Remove 2 screws and then lift printing assembly off of plate by sliding it towards
you and lifting. (feed wires up through plate)
10. Remove screw on right side rear (holds right side top cover latch on).

11. Use flathead to gently push down black clip and then slide out bar pushing right
to left.
12. Lift cover up and off. ( cover will be attached to wiring harness)

13. Remove 2 screws and remove cutter.
14. Remove 2 screws on the right side and 2 screws on the left side.

15. Lift up on media assembly and pull up and out to disengage. You will see a wired
connection on the underside that connects into the media sensor board(LD670
only). You will now have access to Platen roller and space motor for potential
replacement.
16. You can easily remove the print head and operator panel sensor from the top
cover as well.
Disassembly Completed