Brother HLL3290CDW Service Manual page 297

(6) Release the Cartridge sensor harness C/M/Y, the HVPS harness, the External temperature/
humidity sensor harness, the T1 paper empty/paper feed sensor harness, and the Manual
feed paper empty/regist rear/regist front sensor harness from the securing fixtures.
(7) Remove the two Taptite cup S M3x8 SR screws, the Taptite pan (washer) B M4x12DA
screw, the six Taptite bind B M4x12 (A) screws, and the Taptite bind B M4x12 (B) screw.
(8) Raise the Damper L ASSY to remove the Process drive unit.
(9) Release the High-voltage power supply flat cable from the securing fixtures and then
remove it from the machine.
(10) Release the Lock to disconnect the Process motor flat cable from the Process motor.
Process drive unit
Taptite cup S
M3x8 SR
Taptite bind B
M4x12 (A)
Process motor
flat cable
Taptite bind
B M4x12 (B)
Taptite pan
(washer) B
M4x12DA
Taptite bind B M4x12 (A)
Taptite cup S
M3x8 SR
Taptite bind B
M4x12 (A)
Taptite pan (washer)
B M4x12DA
Harness routing: Refer to
Assembling Note:
• When attaching the Process drive unit, tighten the Taptite bind B M4x12 (B) screw first.
Damper L ASSY
Cartridge sensor harness C
High-voltage
power supply
flat cable
Taptite cup S
M3x8 SR
Taptite bind B M4x12 (B)
Fig. 3-94
"10. Main PCB, Cartridge sensor relay
power supply flat cable".
3-106
Cartridge sensor harness M
External
temperature/
humidity sensor
harness
HVPS harness
T1 paper empty/paper feed sensor harness
Manual feed paper empty/regist
Process motor
rear/regist front sensor harness
Lock
Cartridge sensor harness Y
Taptite cup S
M3x8 SR
Taptite bind B
M4x12 (A)
PCB, 13. High-voltage
Confidential