Detailed Disassembly/Reassembly Procedure For Each Part/Unit - Epson ET-4550 Service Manual

E E p p s s o o n n E E T T - - 4 4 5 5 5 5 0 0 , , L L 6 6 5 5 5 5 / / 6 6 5 5 6 6
5 5
(p 39) (p 39)
  Joint Joint
Ink Tank Ink Tank
Cap Tank Cap Tank
Housing Lower Housing Lower
2 2
2 2
S8 S8
(p 48) (p 48) (p 48) (p 48)
Ink Tank Ink Tank
Housing Upper Housing Upper
2 2
2 2
S8 S8
(p 49) (p 49)
Ink End Sensor Ink End Sensor
Assy Assy
4 4
4 4
S5 S5
(p 49) (p 49)
  Ink Supply Tank Tube Ink Supply Tank Tube
Assy Assy
Ink Supply Tank Ink Supply Tank Ink Supply Tank Ink Supply Tank
(Bk) (Bk) (C/M/Y) (C/M/Y)
--- ---
--- ---
(p 49) (p 49) (p 49) (p 49)
Ink Supply Tank Ink Supply Tank
Tube Assy Tube Assy
--- ---
4 4
--- ---
D D i i s s a a s s s s e e m m b b l l y y / / R R e e a a s s s s e e m m b b l l y y
E E p p s s o o n n E E T T - - 4 4 5 5 5 5 0 0 , , L L 6 6 5 5 5 5 / / 6 6 5 5 6 6
2.4 2.4 Detai Detailed Disassem led Disassembly/R bly/Reassem eassembly Proced
Rear Rear
Remove the ADF/Scanner Unit as follows. Remove the ADF/Scanner Unit as follows.
1. 1. Open the ADF/ Open the ADF/Scanner Un Scanner Unit and remove the scr it and remove the screw that secure
2. 2. Release the A Release the ADF/Scan DF/Scanner Unit fr ner Unit from the hinge o om the hinge on the 80-dig
3. 3. Release the dowel on the 0-digit sid Release the dowel on the 0-digit side of the ADF/Scanner Unit by pressing the tab e of the ADF/Scanner Unit by pressing the tab outwardly and then remove the ADF/Scanner Unit by l
4. 4. Disconn Disconnect the ADF PE Senso ect the ADF PE Sensor cable, Scann r cable, Scanner FFC, and grou
ADF Base ADF Base
Remove the ADF Frame Assy as follows. Remove the ADF Frame Assy as follows.
1. 1. Remove th Remove the screws ( e screws (x 2) that secur x 2) that secure the ADF Fra e the ADF Frame Assy.
2. 2. Release the dow Release the dowels (x 2) on the ADF Fram els (x 2) on the ADF Frame Assy from the ho e Assy from the holes (x 2) on the ADF Base.
3. 3. Release the A Release the ADF PE Sens DF PE Sensor cable fro or cable from the securi m the securing points o
4. 4. Disconnect the ADF PE Disconnect the ADF PE Sensor cable from the A Sensor cable from the ADF PE Sensor
D D i i s s a a s s s s e e m m b b l l y y / / R R e e a a s s s s e e m m b b l l y y
9 9
Adapter Cover Adapter Cover
--- ---
--- ---
S10 S10
  Ink Supply Adapter Ink Supply Adapter
Tube Assy Tube Assy
Adapter(Bk) Adapter(Bk)
--- ---
--- ---
bly Procedure for each Part/Unit ure for each Part/Unit
ADF/Scanner Unit ADF/Scanner Unit
ADF/Scanner Unit ADF/Scanner Unit
0 digit side 0 digit side
C.B.P-TITE SCREW 3x10 F/ZN-3C (6 ± 1 C.B.P-TITE SCREW 3x10 F/ZN-3C (6 ± 1 kgf
ew that secures the ADF/Sca s the ADF/Scanner Unit. nner Unit.
n the 80-digit side. it side.
outwardly and then remove the ADF/Scanner Unit by lifting it.
er FFC, and grounding wire. nding wire. (p 51) (p 51)
ADF Frame Assy ADF Frame Assy
Step4 Step4
ADF Frame Assy ADF Frame Assy
Dowel and Hole Dowel and Hole
C.B.P-TITE SCREW 3x8 F/ZN-3C (6 ± 1 C.B.P-TITE SCREW 3x8 F/ZN-3C (6 ± 1 kgf
me Assy.
les (x 2) on the ADF Base.
ng points of the routin f the routing. g. (p 51) (p 51)
DF PE Sensor on the ADF F on the ADF Frame Assy, and rame Assy, and then remove the ADF then remove the ADF Frame Assy.
D D e e
(p 39) (p 39)
Tube Clamp (x3) Tube Clamp (x3) Tube Lock Tube Lock
1 1 --- ---
3 3 --- ---
(p 47) (p 47) (p 48) (p 48) (p 48) (p 48)
Tube Lock (p44) Tube Lock (p44)
Tube Guide Tube Guide
Adapter(C/M/Y) Adapter(C/M/Y)
Sheet Sheet
--- --- --- ---
1 1 1 1
(p 48) (p 48)
(p 47) (p 47) (p 47) (p 47)
Tube Clamp Tube Clamp
(x3) (p44) (x3) (p44)
Ink Supply Ink Supply
Adapter Tube Adapter Tube
Assy Assy
(p 48) (p 48)
Flowc Flowchart 2-6. hart 2-6. Disass Disassembly Flowc embly Flowchart (6) hart (6)
D D i i s s a a s s s s e e m m b b l l y y / / R R e e a a s s s s e e m m b b l l y y P P r r o o c c e e d d u u r r e e s s
ADF Unit/Scanner Unit ADF Unit/Scanner Unit
ADF Unit ADF Unit
Tab Tab
· ·
kgf cm) cm)
ifting it.
Release the hooks (one each) on the ADF Hinges and the hook on Release the hooks (one each) on the ADF Hinges and the hook on
the ADF cable holder, and remove the ADF Unit/Scanner Unit. the ADF cable holder, and remove the ADF Unit/Scanner Unit.
ADF PE Sensor ADF PE Sensor
ADF PE Sensor cable ADF PE Sensor cable
· ·
kgf cm) cm)
Attach the Document Mat on the ADF Unit with double-sided tape Attach the Document Mat on the ADF Unit with double-sided tape
Frame Assy.
as shown above while aligning the mat with the standard lines. as shown above while aligning the mat with the standard lines.
t t a a i i l l e e d d D D i i s s a a s s s s e e m m b b l l y y / / R R e e a a s s s s e e m m b b l l y y P P r r o o c c e e d d u u r r e e f f o o r r e e a a c c
 
Ink Supply Adapter Ink Supply Adapter
Tube Assy Tube Assy
  Ink Supply Tank Tube Ink Supply Tank Tube
Assy Assy
--- ---
2 2
Joint Joint
--- ---
2 2
(p 48) (p 48)
--- ---
5 5
Screw type/torque list Screw type/torque list
--- ---
S S
--- ---
ADF Hinge ADF Hinge
ADF cable holder ADF cable holder
Hook Hook
Scanner Scanner
Unit Unit
Document Mat Document Mat
Document Mat Document Mat ADF Unit ADF Unit
Standard line Standard line
h h P P a a r r t t / / U U n n i i t t
R R e e v v
y y m m b b o o l l S S c c r r e e w w T T y y p p e e T T o o
± ±
C C . . B B . . P P - - T T I I T T E E S S C C R R E E W W 2 2 x x 8 8 F F / / Z Z N N - - 3 3 C C 4 4 1kgf 1kgf
S1 S1
± ±
C C . . B B . . P P - - T T I I T T E E S S C C R R E E W W 2 2 x x 8 8 F F / / Z Z N N - - 3 3 C C 6 6 1kgf 1kgf
S2 S2
± ±
C C . . B B . . P P - - T T I I T T E S E SC C R R E E W 2 W 2. . 5 5 x x 8 F 8 F/ / Z Z N N - - 3 3 C C 4 4 1kgf 1kgf
S3 S3
± ±
C C . . B B . . P P - - T T I I T T E E S S C C R R E E W W 2 2 x x 5 5 F F / / Z Z N N - - 3 3 C C 2 2 0.5kgf 0.5kgf
S4 S4
± ±
C C . . B B . . P P - - T T I I T T E E S S C C R R E E W W 3 3 x x 8 8 F F / / Z Z N N - - 3 3 C C 6 6 1kgf 1kgf
S5 S5
C C . . B B . . S S - - T T I I T T E E S S C C R R E E W W 3 3 x x 8 8 F F / / Z Z B B - - 3 3 C C 6 6 ± ± 1kgf 1kgf
S6 S6
± ±
C C . . B B . . P P - - T T I I T T E E S S C C R R E E W W 3 3 x x 1 1 0 0 F F / / Z Z B B - - 3 3 C C 6 6 1kgf 1kgf
S7 S7
± ±
C C . . B B . . P P - - T T I I T T E E S S C C R R E E W W 3 3 x x 1 1 0 0 F F / / Z Z N N - - 3 3 C C 6 6 1kgf 1kgf
S8 S8
± ±
C C . . B B . . P P - - T T I I T T E E S S C C R R E E W W 2 2 x x 6 6 F F / / Z Z N N - - 3 3 C C 2 2 0.5kgf 0.5kgf
S9 S9
± ±
C C . . B B . . P P - - T T I I T T E E S S C C R R E E W W 2 2 x x 6 6 F F / / Z Z N N - - 3 3 C C 6 6 1kgf 1kgf
S10 S10
± ±
C C . . B B . . S S - - T T I I T T E E P P 4 4 S S C C R R E E W W 3 3 x x 8 8 F F / / Z Z N N - - 3 3 C C 6 6 1kgf 1kgf
S11 S11
± ±
C C . B . B. P . P- T - TI T I TE S E S- P - P1 1 S C S CR R E W E W 3 x 3 x1 2 1 2 F / F /Z N Z N- 3 - 3C C 6 6 1kgf 1kgf
S12 S12
C C . . B B . . S S - - T T I I T T E E S S C C R R E E W W 3 3 x x 6 6 F F / / Z Z N N - - 3 3 C C 8 8 ± ± 1kgf 1kgf
S13 S13
± ±
C C . . B B . . S S - - T T I I T T E E S S C C R R E E W W 3 3 x x 6 6 F F / / Z Z N N - - 3 3 C C 6 6 1kgf 1kgf
S14 S14
± ±
C C . . B B . . S S - - T T I I T T E E S S C C R R E E W W 3 3 x x 6 6 F F / / Z Z N N - - 3 3 C C 4 4 1kgf 1kgf
S15 S15
± ±
C C . . P P - - T T I I T T E E S S C C R R E E W W 3 3 x x 4 4 F F / / Z Z N N - - 3 3 C C 4 4 1kgf 1kgf
S16 S16
± ±
C C . . B B . . S S - - T T I I T T E E S S C C R R E E W W 3 3 x x 1 1 0 0 F F / / Z Z N N - - 3 3 C C 4 4 1kgf.cm 1kgf.cm
S17 S17
± ±
C C . . B B . . S S - - T T I I T T E E S S C C R R E E W W 2 2 x x 6 6 F F / / Z Z N N - - 3 3 C C 3 3 0.5kgf.cm 0.5kgf.cm
S18 S18
Confidential Confidential
R R e e v v
ADF Pad Assy ADF Pad Assy
Bottom Bottom
ADF Pad Assy ADF Pad Assy
ADF Pad Assy ADF Pad Assy
ADF Frame Assy ADF Frame Assy
Hook Hook
Dowel Dowel
Release the hooks (x 2) and dowels (x 2) on the ADF Pad Assy Release the hooks (x 2) and dowels (x 2) on the ADF Pad Assy
from the ADF Frame Assy, and then remove the ADF Pad Assy. from the ADF Frame Assy, and then remove the ADF Pad Assy.
Scanner Housing Upper Assy Scanner Housing Upper Assy
Scanner Housing Upper Assy Scanner Housing Upper Assy
Scanner Unit Upper Scanner Unit Upper
1 1
Scanner Housing Lower Assy Scanner Housing Lower Assy
Scanner Unit Bottom Scanner Unit Bottom
3 3 2 2
5 5
· ·
C.B.P-TITE SCREW 3x10 F/ZN-3C (6 ± 1 kgf C.B.P-TITE SCREW 3x10 F/ZN-3C (6 ± 1 kgf cm) cm)
Tighten the screws in the order indicated in the figure above. Tighten the screws in the order indicated in the figure above.
Confidential Confidential
i i s s i i o o n n B B
r r q q u u e e
· ·
cm cm
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cm cm
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cm cm
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cm cm
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cm cm
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cm cm
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cm cm
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cm cm
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cm cm
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cm cm
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cm cm
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4 4 4 4
i i s s i i o o n n B B
4 4
4 4 5 5