Epson Stylus Color 400 Service Manual 3
Chapter 3
Disassembly and Assembly
3.1 OVERVIEW............................................................................................................3-1
3.1.1 Precautions for Disassembling the Printer.......................................................................... 3-1
3.1.2 Tools........................................................................................................................................3-2
3.1.3 Specification for Screws........................................................................................................ 3-2
3.1.4 Service Checks After Repair.................................................................................................. 3-3
3.2 Disassembly Procedures.....................................................................................3-4
3.2.1 Removing the Housing ..........................................................................................................3-5
3.2.2 Removing the Board Assembly.............................................................................................3-6
3.2.3 Removing the Operation Panel............................................................................................. 3-8
3.2.4 Disassembling the Printer Mechanism................................................................................. 3-9
3.2.4.1 Removing the Print Head Unit................................................................................... 3-9
3.2.4.2 Removing the Absorber Tray Assembly ;A...............................................................3-11
3.2.4.3 Removing the Pump Assembly and Cap Assembly................................................3-12
3.2.4.4 Removing the CR Motor Assembly .........................................................................3-14
3.2.4.5 Removing the PF Motor Assembly.......................................................................... 3-16
3.2.4.6 Removing the ASF Assembly.................................................................................. 3-18
3.2.4.7 Removing the Carriage Assembly........................................................................... 3-21
3.2.4.8 Removing the PF Roller Assembly.......................................................................... 3-23
3.2.4.9 Removing the PE Paper Detector Assembly...........................................................3-25
3.2.4.10 Removing the HP Detector.................................................................................... 3-26
3.2.4.6.1 Removing the Paper Feed Roller Assembly ................................................ 3-19
3.2.4.6.2 Removing the Right and Left LD Roller Assembly.......................................3-20
Chapter3 Disassembly and Assembly
3.1 OVERVIEW
This section describes procedures for disassembling the main components of EPSON Stylus Color 400.
Unless otherwise specified, disassembly units or components ca be reassembled by reversing the
disassembly procedure. Therefore, no assembly procedures are included in this section. Precautions for
any disassembly or assembly procedure are described under the heading “WORK POINT”. Any
adjustments required after disassembling the units are described under the heading “REQUIRED
ADJUSTMENT”.
3.1.1 Precautions for Disassembling the Printer
See the precautions below when disassembling or assembling EPSON Stylus Color 400.
WARNING
Disconnect the power cable before disassembling or assembling the printer.
Wear protective goggles to protect your eyes from ink. If ink gets in your eye, flush the eye with
fresh water and see a doctor immediately.
If ink comes into contact with your skin, wash it off with soap and water. If irritation occurs,
contact a physician.
A lithium battery is installed on the main board of this printer. Be sure to observe the following
instructions when serving the battery:
• Keep the battery away from any metal or other batteries so that electrodes of the opposite
polarity do not come in contact with each other.
• Do not heat the battery or put it near fire.
• Do not solder on any part of the battery. (Doing so may result in leakage of electrolyte from the
battery, burning or explosion. The leakage may affect other devices close to the battery.)
• Do not charge the battery. (An explosion may be generated inside the battery, and cause burning
or explosion.)
• Do not dismantle the battery. (The gas inside the battery may hurt your throat. Leakage, burning
or explosion may also be resulted.)
Do not install the battery in the wrong direction. (This may cause burning or explosion.)
Danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent
type recommended by the manufacture. Dispose the used batteries according to government’s
law and regulations.
Risque d’explosion si la pile est remplacée incorrectment. Ne remplacer que par une pile du même
type ou d’un type équivalent recommandé par le fabricant. Eliminer les piles déchargées selon les lois
et les règles de sécurité en vigueur.
CAUTION
Never remove the ink cartridge from the carriage unless manual specify to do so.
When transporting the printer after installing the ink cartridge, be sure to pack the printer for
transportation without removing the ink cartridge.
Use only recommended tools for disassembling, assembling or adjusting the printer.
Apply lubricants and adhesives as specified. (See Chapter 6 for details.)
Make the specified adjustments when you disassemble the printer. (See Chapter 4 for details.)
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EPSON Stylus Color 400 Service Manual
CAUTION
When assembling, if ink cartridge is removed and needs to be installed again, make sure to
install new ink cartridge because of following reasons;
Once the ink cartridge mounted on the printer is removed, air comes into and becomes bubbles
in the cartridge. These bubbles clog ink path and cause printing malfunction.
If an ink cartridge which are still in use is removed and is installed again, ink quantity will not be
detected correctly since the counter to check ink consumption is cleared.
Because of the reasons above, make sure to return the printer to the users with new ink
cartridge installed.
3.1.2 Tools
Table 3-1 lists the tools recommended for disassembling, assembling, or adjusting the printer.
Use only tools that meet these specifications.
Table 3-1. Recommended Tools
Tool Purchasable Code
Philips Screw Driver No.2
Philips Screw Driver No.1
Tweezers
Hexagon Box Driver
(Size:5.5mm)
Yes
Yes
Yes
Yes
B743800200
B743800400
B741000100
B741700100
3.1.3 Specification for Screws
Table 3-2 below shows specifications for screws. During assembly and disassembly, make sure the
locations for fixing screws and screw types, referring to the table below.
Also, described screw number in the text corresponds to the No. in the table.
Table 3-2. Screw Identification
No. Body Name Size
1 +Bind, S-tight M3X6
2 +Bind, S-tight M3X10
3 +Bind, P-tight
(CBP tight)
4 +Bind, P-tight
(CBP tight)
5 +Bind, P-tight
(CBP tight)
6 +Pan head
(CP)
M3X6
M3X10
M3X8
M3X4
3-2
7 +Bind, S-tight, Sems R2
(CBS Sems)
M3X6
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Chapter3 Disassembly and Assembly
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3.1.4 Service Checks After Repair
Before returning the printer after service, use the check list in Table 3-3, which provides a record to
make servicing and shipping more efficient.
Table 3-3. Inspection Check List for the Repaired Printer
Category Component Item to check Is Check required?
Self-test Is the operation normal?
On-line test Was the on-line test successful?
Print head Is ink ejected normally from the all
nozzles?
Carriage
mechanism
Printer units Is the CR motor at the correct
Paper feeding
mechanism
Adjustment Pointed adjustment
items
Lubricant Pointed lubricant
item
Function ROM version Newest version:
Shipment
package
Others Attached items Is all attached items from users
Ink cartridge Is the ink cartridge installed
Protection
conditions during
transport
Does the carriage move smoothly?
Any abnormal noise during
movement?
Any dirt or obstacles around the
axis of carriage guide?
temperature(not over heating)?
Is paper fed smoothly?
Does the paper get jammed?
Does the paper get skew during
paper feeding?
Are papers multi fed?
Does the PF motor get overheated?
Abnormal noise during paper
feeding?
Is the paper path clear of all
obstructions?
Are adjusted conditions all right?
Is lubrication applied to the pointed
locations?
Is the quantity of lubrication
adequate?
correctly?
Is all the pointed parts firmly fixed?
included?
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
Checked / Not necessary
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EPSON Stylus Color 400 Service Manual
4
3.2 Disassembly Procedures
The figure below shows procedures for disassembly.
Remove
the Housing
Refer to
3.2.1
Remove
the Board Assembly
3.2.2
Remove the
operation panel
3.2.3
Remove the Printer
Mechanism
3.2.4
Remove
the Print Unit
3.2.4.1
Remove
the Absorber tray,
Assembly;A
3.2.4.2
Remove the Pump
Assembly,
Cap Assembly
3.2.4.3
Remove the CR
Motor Assembly
3.2.4.4.
Remove the PF
Motor Assembly
3.2.4.5
3-
Remove the ASF
Assembly
3.2.4.6
Remove the CR
Assembly
3.2.4.7
Remove the PF
Roller Assembly
3.2.4.8
Remove the PE
Paper Detector
Assembly
3.2.4.9
Remove the HP
Detector
3.2.4.10
Figure 3-1. Flow Chart of Disassembly
Remove the Paper
Feed Roller
Assembly
3.2.4.6.1
Remove the LD
Roller Assembly
(Right/Left)
3.2.4.6.2
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Chapter3 Disassembly and Assembly
5
3.2.1 Removing the Housing
Since the printer mechanism itself structures the bottom part, the printer mechanism appears just by
removing the housing.
1. Open the printer cover and turn the PG adjustment lever towards (+) side.
2. Remove 4 screws(No.2) securing the housing, and remove the housing.
WORK POINT
Uplift and remove the housing, pulling it towards you.(Since it collides with carriage)
(No.2)
Housing
Figure 3-2. Removing the Housing
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EPSON Stylus Color 400 Service Manual
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3.2.2 Removing the Board Assembly
Since the main board(C206 Main) and power supply circuit board(C206 PSB) are built in different
bracket from the printer mechanism, remove the whole bracket from the printer mechanism.
1. Remove the housing.(Refer to 3.2.2)
2. Remove the 5 screws(No.1) securing the “M/B Shield plate” on the printer mechanism.
3. Pull out the “M/B Shield Plate” a little bit and remove cables which are hung on the A and B holders
as you can see in the figure below.
Then, take all cables out of connectors on the C206 main board. (CN11 black, CN4 yellow, CN5 white,
CN3 black and CN8 FFC)
4. After removing all the cables from the C206 main board, detach the “Shield plate M/B” completely
from the printer mechanism.
5. When rem oving each board unit f rom the “M/B Shield plate”, r emove each sc rew securing each units
and shield plate. [C206 Main: 10screws (7 No.1 screws, 3 No.6 screws), C206 PSB/PSE:
4screws(No.1)] Refer to the next page for the figure.
Also, when removing the power supply board(C206 PSB), disconnect and also remove
the cable connecting to the Main board (CN6, 7 and 10 with lock device).
WORK POINT
Since connector CN 6,7 and 10 are the connector with lock dev ice, make sure to release the
lock before removing the cable. Also, make sure to lock when installing these cables.
When connecting cables to the connectors, each cable never cross each other in this printer.
So, if there are two connectors sitting next to each other, the cable from right should be connected
to the right connector and the cable from the left should be connected to the left one.
[Cable Holder A and B]
A
(No.1)
M/B Shield Plate
B
(No.1)
(No.1)
Figure 3-3. Removing the M/B Shield Plate
3-
Rev. A
7
Power Supply Board
(C206 PSB)
(No.1)
Chapter3 Disassembly and Assembly
Main Board
(No.1)
(C206 Main)
M/B Shield plate
(No.6)
Figure 3-4. Removing the Boards
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EPSON Stylus Color 400 Service Manual
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3.2.3 Removing the Operation Panel
1. Remove the housing. (Refer to 3.2.1)
2. Remove two screws (No.1) securing the operation panel and disconnect the operation panel from
the printer mechanism.
3. Remove one screw (No.1) and detach the left panel housing.
4. Remove two screws (No.3) securing the panel board assembly and take C206 PNL board out of
the panel assembly.
5. Disconnect the FFC from the connector on the C206 PNL board.
WORK POINT
Removing the operation panel also disconnects the stack er ass embly, since the operation panel holds
the stacker assembly.
Panel Shield Plate
(No.3)
Panel Board Assembly
(No.1)
Panel Assembly
Stacker Assembly
(No.1)
Left Panel Housing
Figure 3-5. Removing the Operation Panel
3-
Rev. A
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