Sharp FO IS125N - B/W Laser - All-in-One Service Manual page 141

3. High Voltage PWB parts layout (Bottom side)
Note: Since the parts of this PWB cannot be supplied, change it as a unit.
CAUTION - HIGH VOLTAGE
The unit's back cover should never be opened by anyone other than
a qualified serviceperson. There are many high voltage parts inside
the unit, and touching them is dangerous.
The HIGH VOLTAGE PWB of the model employs
lead-free solder.
6 – 20
FO-IS125N