Ricoh C249, Service Manual

Page: 259 / 486

COVERS / BOARDS
SM 3-3 C264
C26
4
3.2.4 MPU
•
Rear left cover, Rear right cover ( 3.2.2)
[A]: MPU ( x 17, x 6, 9 clamps)
CAUTION: Move the RAM [B] from the old board to the new one, so that the SP
mode settings will be transferred to the new board.
Adjust the master end sensor, duct jam sensor, master edge sensor,
and 2
nd
drum master sensor ( 3.5.6 to 3.5.9) after installing the new
MPU.
If you install a new RAM, you must do the image adjustments (
3.3.6).
3.2.5 PSU
•
Upper left cover ( 3.2.2)
•
Master eject unit ( 3.4.1)
[A]: PSU ( x 5, x 2, 2 clamps)
When the PSU is replaced, the thermal head voltage returns to the default. Adjust
the thermal head voltage (
3.5.10) after installing the new board.
[A]
[B]
[A]