Laser Diode - Star Micronics WinType 4000 Technical Manual

4.3 Laser Diode

[Disassembly]
Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet.
Remove the EP toner cartridge and keep it in a safe place.
The ROS must not be running while it is being handled.
(1) Turn the printer over onto its top cover. (Turn it upside down.)
(2) Remove the following units:
• Bottom cover (Refer to section 1.4)
• ROS assembly (Refer to section 4.1)
• Two screws [1]
• Laser diode [2]
Caution: The two (gold) screws covered with red paint must not be removed. If they are removed and the printer is
operated, the direction of the laser beam will change, affecting the picture quality considerably.
[Assembly]
Reverse the disassembly procedure.
REPLACEMENT AND ADJUSTMENT OF PARTS
– 49 –
Be sure that the power is disconnected!
[2]
[1]