Epson WF-4640 Series User Manual

Epson WF-5690/4640/4630/5620/5190/5110 series Revision D
Confidential
Disassembly/Reassembly 32
Screw type/torque list
Symbol Screw Type Torque
C.B.P-TITE SCREW 2x6-F/ZN-3C 2 ± 1 kgf·cm
C.B.P-TITE SCREW 3x10-F/ZN-3C 6 ± 1 kgf·cm
C.B.S-TITE SCREW 3x6-F/ZN-3C 6
± 1 kgf·cm
C.P.SCREW 3x6-F/ZN-3C 6 ± 1 kgf·cm
C.P.SCREW 3x6-F/ZN-3C 2
± 5 kgf·cm
C.B.P-TITE (P2) SCREW 3x10-F/ZN-3C 6 ± 1 kgf·cm
C.B.P-TITE SCREW 3x8-F/ZN-3C 6
± 1 kgf·cm
C.P.SCREW 2.5x6-F/ZN-3C 2 ± 5 kgf·cm
C.P.SCREW 3x5-F/ZN-3C 6
± 1 kgf·cm
C.B.S-TITE (P4) SCREW 3x8-F/ZN-3C 6 ± 1 kgf·cm
C.B.P-TITE SCREW 2.5x8-F/ZN-3C 6
± 1 kgf·cm
C.B.P-TITE SCREW 2x10-F/ZN-3C 3 ± 0.5 kgf·cm
C.B.P-TITE (S-P1) SCREW 3x12-F/ZN-3C 6
± 1 kgf·cm
C.B.S-TITE (P4) SCREW 3x10-F/ZN-3C 6 ± 1 kgf·cm
C.P.SCREW 3x4-F/ZN-3C 6
± 1 kgf·cm
C.B.EP-TITE SCREW 2.6x17 (B=14) F/ZN-3C 2.5 ± 0.4 kgf·cm
P.W.,2.8x0.5x6.5-F/ZN-3C 3
+ 0.5 kgf·cm
C.P.SCREW 2.5x6-F/ZN-3C 6 ± 1 kgf·cm
C.B.S-TITE(P2) SCREW,3x8-F/ZB-3C 6
± 1 kgf·cm
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
2.2.3.2 Exterior Parts
Flowchart 2-1. Disassembling Flowchart of Exterior Parts (1)
 The removed parts/units differ between models when the name of each model is indicated and
enclosed in a box. If “Go to the next step” is indicated for a specific model in the box, skip the
step for the model and go to the next step.
 This flowchart is made on the premise that the parts/units instructed in "2.2.2 Parts/Units Need
to be Removed in Advance (p29)" are already removed in advance.
 See "2.2.3.4 Printhead/Ink Supply Unit (p36)" for disassembly of the Printhead and Ink Supply
Unit.
 See "2.2.3.5 2nd Cassette Unit (p37)" for disassembly of the 2nd Cassette Unit.
START
A
Metal Plate
(w/ Paper
Stopper Assy)
6
---
(p 46)
S2
S3
(p 34)
Parts/units whose
composition or shape
differ between models
Common parts/units
Rear Housing
---
---
---
Stacker Assy
---
4
---
WF-5190/5110 series WF-5690/4640/4630/5620 series
Panel Assy
---
9
(p 39)
Panel Assy
1
7
(p 39)
S3
WF-5190/5110 series WF-5690/4640/4630/5620 series
Go to the next step
Housing Rear
Assy
FAX Cover
WF-5190/5110 series WF-5690/4640/4630/5620 series
Housing Upper
Assy
5
---
(p 38)
S2
Front Housing
Assy
3
2
(p 38)
S2
WF-5190/5110 series WF-5690/4640/4630/5620 series
Go to the next step
Housing Rear
Assy
USB Cover
2
(p 33)
Paper Support
---
2
---
Paper Stopper
Assy
2
2
(p 44)
S3
Pickup Assy 1st
---
2
---
WF-5690/4640/4630/5620 series
USB Cover
2
4
(p 38)
S2
S2
FAX Cover
2
4
(p 38) (p 46)
S2
ADF Pad Assy
---
4
(p 44)
WF-5190/5110 series
Speaker /
Speaker Holder
---
2
(p 38)
Panel FFC
Cover ASF Assy
---
2
---
Cover ASF Front
---
2
---
Cover ASF Rear
---
2
---
Housing Rear
Assy
4
2
(p 38)
S2
ADF Unit /
Scanner Unit
7
2
(p 44) (p 46)
S2
S3

Epson WF-4640 Series Specifications

General

Max Print Resolution	4800 x 1200 dpi
Automatic Duplex Printing	Yes
Scanner Type	Color flatbed / ADF
Max Scan Resolution	1200 x 2400 dpi
Connectivity	USB, Ethernet, Wi-Fi, Wi-Fi Direct, NFC
Functions	Print, Copy, Scan, Fax
Mobile Printing	Epson Connect, Apple AirPrint, Google Cloud Print
Ink Type	DURABrite Ultra pigment ink
OS Compatibility	Windows, Mac
Print Technology	Inkjet
Print Speed (ISO)	20 ppm (black), 20 ppm (color)
Paper Capacity	80 sheets rear feed
Display	color touchscreen
Weight	31.3 lbs