Assembly 2: Electronics 1
Asm-index P/N Units/mach Units/FRU Description Removal procedure
NS 41X0363 1 1 Polygon laser scanning
unit (LSU) frame*
‑‑
141X0362 1 1Polygon LSU*
“Laser scanning unit (LSU) removal”
on page 278
140X8082 1 1Galvo LSU*
“Laser scanning unit (LSU) removal”
on page 278
240X8343 1 1Fuser, 100 V
“Fuser removal” on page 276
2 40X8023 1 1 Fuser, 110 V
“Fuser removal” on page 276
240X8024 1 1Fuser, 220 V
“Fuser removal” on page 276
3 40X8050 1 1 Narrow media/bin full
sensor
“Narrow media/bin full sensor
removal” on page 271
4 40X8276 1 1 Cooling fan
“Cooling fan removal” on page 222
5 41X0364 1 1 Controller board for
model MS312dn with
polygon LSU*
“Controller board removal” on
page 223
5 40X9656 1 1 Controller board for
model MS312dn with
galvo LSU*
“Controller board removal” on
page 223
6 40X8280 1 1 Front input guide
“Front input guide removal” on
page 248
7 40X8300 1 1 MPF solenoid
“MPF solenoid removal” on
page 210
8 40X8301 1 1 Reverse solenoid
“Reverse solenoid removal” on
page 216
9 40X8291 1 1 Control panel assembly
“Control panel assembly removal”
on page 236
“UICC removal” on page 238
NS 41X0759 1 1 Polygon LSU cable* ‑‑
NS 41X0913 1 1 Video cable (applicable
only to models with
Galvo* LSU)
‑‑
* To determine what type of LSU (galvo or polygon) the printer supports and whether it is compatible with the
controller board:
• Check the serial number of the printer. If the sixth digit character assigned is in the P–Z range, then the LSU
is polygon (example: 4514 2ZHH 007CR). If the sixth digit character assigned is in the 0–9 or B–N range,
then the LSU is galvo (example: 4514 20HH 007CR).
• Check the color of the controller board. For polygon LSU, the color of the compatible controller board is
blue. For galvo LSU, the color is green.
4514-330
Parts catalog
296