Epson WF-5690 Series Service Manual page 42

Epson WF-5690/4640/4630/5620/5190/5110series
Ink System Supply Assy (Ink Supply Unit w/ Printhead)
Section A
Section A
Do not remove.
 When removing/installing the Printhead, move the Carriage Assy to the center of the printer, and place the Spacer (about 5 mm) between the
Carriage Assy and Star Wheel Assy in order to prevent the CR Guide Frame and Main Frame from being deformed. (See
 To prevent ink leakage, make sure not to separate the ink tubes from the I/C Holder Unit by removing the screws (x2) in section A shown above.
Loosening the screws even just once will cause ink leakage, therefore, make sure to replace the Ink System Supply Assy with a new one.
When installing the Ink System Supply Assy, see " Printhead (p42)"
Star Wheel Assy
 To replace the Printhead, it is necessary to disconnect the joint section of the Printhead and the ink tubes of the Ink Supply Unit. Before
disconnecting the joint section, perform "Ink Pressure Release" in advance. (See
(p27)" and " Ink Supply Unit (p42)".)
 When disconnecting the joint section of the ink tubes of the Ink Supply Unit and the Printhead, ink may slightly spill over from the ink tubes
even if "Ink Pressure Release" has been performed. To prevent the inside of the printer being made dirty by the spilling ink, make sure to attach
tape at the joint section of the ink tube when disconnecting the joint section of the ink tube of the Ink Supply Unit and the Printhead.
(See " Ink Supply Unit (p42)".)
 When disconnecting the ink tubes from the Printhead, make sure to replace the rubber packing between the ink tubes and the Printhead with a
new one in order to prevent ink leakage.
 When removing/installing the Printhead, move the Carriage Assy to the center of the printer, and place the Spacer (about 5 mm) between the
Carriage Assy and Star Wheel Assy in order to prevent the CR Guide Frame and Main Frame from being deformed.
 Tighten the screws in the order indicated in the figure above.
 After installing the Printhead, make sure to connect the ink tubes to the Printhead. (See
When replacing the Printhead, make sure to perform
Disassembly/Reassembly
C.B.S-TITE(P2)SCREW 3x8 F/ZB-3C (6 ± 1 kgf·cm)
C.B.S-TITE SCREW 3x6 F/ZN-3C (6 ± 1 kgf·cm)
P.W.,2.8x0.5x6.5, F/ZN-3C (3 ± 0.5 kgf·cm)
and " Ink Supply Unit (p42)".
Printhead
Printhead
Carriage Assy
3
2
1
Position for Spacer
(5 mm)
P.W.2.8x0.5x6.5 F/ZN-3C (3 ± 0.5 kgf·cm)
"2.2.1 Caution when Replacing the Printhead/Ink Supply Unit
" Ink Supply Unit (p42)".)
"3.2.7 Ink Leak Check (p79)" and
Detailed Disassembly/Reassembly Procedure for each Part/Unit
Step 1
Positioning hole and dowel
" Printhead (p42)".)
Step 2
 Before disconnecting the joint section of the Printhead and the ink tubes of the Ink Supply Unit, it is necessary to perform "Ink Pressure Release"
in advance. Make sure to perform "Ink Pressure Release", otherwise, the ink in the ink tube will spill over. (See
the Printhead/Ink Supply Unit
Thickness gauge (5 mm)
 When disconnecting the joint section of the ink tubes of the Ink Supply Unit and the Printhead, ink may slightly spill over from the ink tubes
even if "Ink Pressure Release" has been performed. To prevent the inside of the printer being made dirty by the spilling ink, make sure to attach
tape at the joint section of the ink tube hen disconnecting the joint section of the ink tube of the ink supply unit and the printhead.
(See " Printhead
 When disconnecting the ink tubes from the Printhead, make sure to replace the rubber packing between the ink tubes and the Printhead with a
new one in order to prevent ink leakage.
 When connecting the ink tubes to the Printhead, place the Spacer (about 5 mm) between the Carriage Assy and Star Wheel Assy in order to
prevent the CR Guide Frame and Main Frame from being deformed. (See
When installing the Ink Supply Unit, follow the procedure below.
1. Align the positioning holes (x2) and dowels (x2) shown above, and tighten the screws (x4) of the I/C Holder Unit in the order indicated in the figure above.
2. Secure the ink tubes with the Tube Holder A (x3).
3. Move the Carriage Assy to the center of the printer.
4. While aligning the Tube Holder C attached on the ink tubes with the groove of the Carriage Assy, insert the joint section on the end of the ink
tubes into the holes of the Printhead, and then secure the end of the ink tubes with the screws (x2).
5. Secure the ink tubes with the Tube Holder B (x3), and then adjust their attachment positions to between the Tube Spacers.
Once you loosen the screws on the joint section of the ink tubes to the Printhead, make sure to perform
Ink Supply Unit
I/C Holder Unit
Carriage Assy
Ink tube
Tube Holder B
Positioning hole and dowel
Step 5
Ink tube
Tube Holder A
(p27)".)
(p42)".)
" Printhead
Revision D
Step 4
End of ink tube
Joint section
Rubber packing
Holes of Printhead
Rubber packing
Tube Spacers
Attachment positions of Tube Holder B
C.B.S-TITE(P2)SCREW 3x8 F/ZB-3C (6 ± 1 kgf·cm)
C.B.S-TITE SCREW 3x6 F/ZN-3C (6 ± 1 kgf·cm)
C.B.EP-TITE SCREW,2.6x17(B=14),F/ZN-3C (3 ± 0.5 kgf·cm)
"2.2.1 Caution when Replacing
(p42)".)
"3.2.7 Ink Leak Check (p79)".
42
Confidential