Panasonic UF-490 / UF-4000 / UF-4100 Service Manual ▷ View online
33
(16) Release the Latch Hooks with the Screw driver.
Note:
For B4 Units (non-USA), release the Latch
Hooks from the back side.
Hooks from the back side.
(17) Remove the Scanning Roller Assembly (218) .
(18) Remove the Scanning Roller (218).
(19) Lift the White Guide (216).
(20) Release the Latch Hooks.
(21) Remove the CIS Holder (224) with the CIS
(20) Release the Latch Hooks.
(21) Remove the CIS Holder (224) with the CIS
Assembly.
(22) Remove the CIS Assembly (223).
Note:
When re-installing, make sure to install the CIS
Assembly into the CIS Holder first, before re-
attaching it to the Lower TX Chassis Assembly.
Assembly into the CIS Holder first, before re-
attaching it to the Lower TX Chassis Assembly.
(17)
Back View
(18)
(19)
(21)
(20)
(22)
34
(23) 2 Screws (19).
(24) 1 Screw (7B) and 1 Washer (G4).
(25) Remove the Gear Cover (236).
(24) 1 Screw (7B) and 1 Washer (G4).
(25) Remove the Gear Cover (236).
(26) Remove B51C16 F Gear (230), C18C43 F Gear
(231), C41 F Gear (232) and C34D19 F Gear
(233).
(233).
(27) Remove the Gear Shaft (229).
Note:
Lift by the center of the Shaft, and move it towards
the right side.
the right side.
(28) Remove the ADF Roller (221).
(23)
(24)
(25)
(26)
(27)
(28)
35
2.2.6.
Laser Unit (LSU)
(1) 4 Black Screws (G2).
(2) Disconnect the LSU Harness (1002).
(2) Disconnect the LSU Harness (1002).
Note:
Note the Harness routing to the PC Board for
re-installation purposes.
re-installation purposes.
(3) Remove the LSU (115).
<Cleaning Mirror>
(1) 2 Screws (19).
(2) Remove the LSU Cover.
(2) Remove the LSU Cover.
(3) Clean the Mirrors with a soft cloth, saturated
with isopropyl alcohol.
(1)
(1)
(2)
(3)
(1)
(2)
36
2.2.7.
Motor, Left Toner Cartridge Rail, Feed Roller, Bias Transfer Roller
(1) Remove Motor Cover (518) releasing 3 Hooks.
(2) Disconnect the MOT Harness (1006).
(2) Disconnect the MOT Harness (1006).
Note:
Note the Harness routing to the PC Board for
re-installation purposes.
re-installation purposes.
(3) 2 Screws (19).
(4) Remove the Motor (501).
(4) Remove the Motor (501).
(5) Remove the Snap Ring (B9).
(6) Remove the Feed Roller (439).
(6) Remove the Feed Roller (439).
Note:
Lift the right side of the Feed Roller pushing
towards the left.
towards the left.
(7) 4 Screws (19).
(8) Remove the Left Toner Cartridge Rail (608).
(8) Remove the Left Toner Cartridge Rail (608).
(9) 3 Screws (19).
(10) Remove the BTR Guide (445).
(11) 2 Screws (19).
(12) Remove the Plate Holder (453)
(13) Remove the Discharge Plate (452)
(13) Remove the Discharge Plate (452)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(7)
(8)
(9)
(9)
(13)
(12)
(10)
(11)
(11)
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