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Epson STYLUS 400 User Manual

Epson printer user manual
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Download this manual See also: Product Information Manual, Manual
3.1.1 Precautions for Disassembling the Printer .......................................................... 3-1
3.1.2 Tools ................................................................................................................. 3-2
3.1.3 Specifications for Screws ................................................................................... 3-3
3.1.4 Service Checks After Repair............................................................................... 3-3
3.2 Disassembly Procedures .................................................................................................... 3-5
3.2.1 Removing the Housing ....................................................................................... 3-6
3.2.2 Removing the Board Assemblies........................................................................ 3-7
3.2.3 Removing the Control Panel............................................................................... 3-9
3.2.4 Disassembling the Printer Mechanism.............................................................. 3-10
EPSON Stylus COLOR 400 Service Manual
..................................................................................................................... 3-1
3.2.4.1 Removing the Printhead Unit ........................................................... 3-10
3.2.4.4 Removing the CR Motor Assembly .................................................. 3-15
3.2.4.5 Removing the PF Motor Assembly................................................... 3-17
3.2.4.6 Removing the ASF Assembly .......................................................... 3-19
3.2.4.7 Removing the Carriage Assembly.................................................... 3-22
3.2.4.8 Removing the PF Roller Assembly................................................... 3-24
3.2.4.9 Removing the PE Paper Sensor Assembly....................................... 3-25
3.2.4.10 Removing the HP Sensor............................................................... 3-27
3-i

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Summary of Contents for Epson STYLUS 400

  • Page 1: Table Of Contents

    3.2.4.6.2 Removing the Right and Left LD Roller Assemblies ... 3-21 3.2.4.7 Removing the Carriage Assembly... 3-22 3.2.4.8 Removing the PF Roller Assembly... 3-24 3.2.4.9 Removing the PE Paper Sensor Assembly... 3-25 3.2.4.10 Removing the HP Sensor... 3-27 EPSON Stylus COLOR 400 Service Manual 3. Disassembly and Assembly...
  • Page 2 Disassembly and Assembly 3-ii EPSON Stylus COLOR 400 Service Manual...

  • Page 3: Overview

    3.1 OVERVIEW This section describes procedures for disassembling the main components of the EPSON Stylus COLOR 400. Unless otherwise specified, disassembled units or components can 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 “Points to Note.”...

  • Page 4: Tools

    For the reasons above, be sure to return the printer to the user with a new ink cartridge installed. 3.1.2 Tools Table 3-1 lists the tools recommended for disassembly, assembly, or adjusting the printer.

  • Page 5: Specifications For Screws

    3.1.3 Specifications for Screws Table 3-2 below shows and describes screws used in this printer. During assembly and disassembly, verify the locations of different types of screws by referring to the table below. The screw number in the text corresponds to the number (No.) in the table below.

  • Page 6: Service Checks After Repair

    Disassembly and Assembly 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 Checklist for the Repaired Printer...

  • Page 7: Disassembly Procedures

    Remove Housing Refer to 3.2.1 Remove Board Assemblies 3.2.2 Remove Control Panel 3.2.3 Figure 3-1. Disassembly Flowchart EPSON Stylus COLOR 400 Service Manual Remove Printer Mechanism 3.2.4 Remove Printhead Unit 3.2.4.1 Remove Waste Ink Pad Tray Assembly A 3.2.4.2 Remove Pump...

  • Page 8: Removing The Housing

    Disassembly and Assembly 3.2.1 Removing the Housing Since the printer mechanism also acts as the lower case, you can remove the printer mechanism just by removing the housing. 1. Open the printer cover and turn the PG adjustment lever toward the (+) side.

  • Page 9: Removing The Board Assemblies

    1. Remove the housing. (See Section 3.2.2.) 2. Remove 5 screws (No. 1) securing the main board shield plate to the printer mechanism. 3. Pull the main board shield plate out slightly, and remove the cables hung on holders A and B, shown in the figure below.
  • Page 10 Disassembly and Assembly Power Supply Board (C206 PSB) Main Board Shield Plate (No. 1) (No. 6) Figure 3-4. Removing the Boards EPSON Stylus COLOR 400 Service Manual Main Board (C206 MAIN) (No. 1)

  • Page 11: Removing The Control Panel

    3.2.3 Removing the Control Panel 1. Remove the housing. (See Section 3.2.1) 2. Remove 2 screws (No. 1) securing the control panel, and disconnect the panel from the printer mechanism. 3. Remove 1 screw (No. 1), and detach the left panel housing.

  • Page 12: Disassembling The Printer Mechanism

    Disassembly and Assembly 3.2.4 Disassembling the Printer Mechanism Since the EPSON Stylus COLOR 400 does not have a lower housing, the printer mechanism is already removed. Therefore, this section explains procedures for disassembling major parts or units of printer mechanism.
  • Page 13 Printhead Unit Figure 3-6. Removing the Printhead Make sure this protrusion is in the U-shaped groove on the printhead side. EPSON Stylus COLOR 400 Service Manual This part should touch the CR axis holder. Make sure the protrusion from the carriage is in the hole in the earth ground plate.

  • Page 14: Removing Waste Ink Drain Pad Tray Assembly A

    2. Remove the control panel. (See Section 3.2.3.) 3. Remove 1 screw (No. 4) securing the waste ink tray assembly on the right side of the printer mechanism. 4. Also on the right side of the printer mechanism, release the hook securing waste ink tray assembly A to the frame and remove it, pulling it downward.

  • Page 15: Removing The Pump Assembly And Cap Assembly

    4. Loosen 2 screws on the edges of the paper eject frame assembly, and float the paper eject assembly. 5. Raise the printer mechanism toward the ASF side, so you can see the bottom of the printer mechanism. 6. On the right side of the frame, remove the hook holding the cap assembly, and release 2 protrusions attached to the frame.
  • Page 16 Pump Assembly Release 1 hook from the back of the printer mechanism and remove 2 protrusions from the subframe. Pump Assembly Order. EPSON Stylus COLOR 400 Service Manual Release 3 hooks from the interior of the right frame assembly. Cap Assembly...

  • Page 17: Removing The Cr Motor Assembly

    (See the figure on the next page) Compression Spring (19.6 g) To Exterior of Side Frame Figure 3-11. Removing the Timing Belt EPSON Stylus COLOR 400 Service Manual Driven Pulley Assembly To Interior of Side Frame Disassembly and Assembly...
  • Page 18 Disassembly and Assembly Make sure the protrusions from the CR motor are in the holes in the frame when installing the CR motor assembly. Figure 3-12. Removing and Installing the CR Motor Assembly 3-16 (No. 1) EPSON Stylus COLOR 400 Service Manual...

  • Page 19: Removing The Pf Motor Assembly

    1. Remove the housing. (See Section 3.2.1.) 2. Remove waste ink drain tray assembly A. (See Section 3.2.4.2.) 3. Remove the following gears on the left side of the printer mechanism. See the figure below. Gear (67.2 mm). Remove the ring with tweezers or a flathead screwdriver. After the ring is removed, if you try to remove the gear (67.2 mm) by holding its edge, the gear may break.
  • Page 20 3-18 PF Motor (Back side of the frame) Insert the PF motor shaft into the larger hole first, and then slide it into the smaller hole. Figure 3-14. Installing the PF Motor Assembly EPSON Stylus COLOR 400 Service Manual...

  • Page 21: Removing The Asf Assembly

    ASF assembly roller shaft. 3. Take the cables out of the cable hook on the printer mechanism and the hook on the ASF assembly. 4. After removing 2 screws — 1 (No.7) and 1 CR shaft installation screw — remove the ASF assembly, separating the protrusions on the left side of the ASF assembly from the frame holes.

  • Page 22: Removing The Paper Feed Roller Assembly

    When installing right and left paper feed roller assemblies onto the LD roller shaft, the black paper feed roller goes on the right and the one in the standard EPSON color goes on the left of the shaft. Brake Lever Torsion Spring (41.2 g)

  • Page 23: Removing The Right And Left Ld Roller Assembly

    Figure 3-17. Disassembly of Paper Feed Roller Assembly EPSON Stylus COLOR 400 Service Manual Right or Left LD Roller Cover Paper Feed Sheet Holder Compression Spring (1.66 g)

  • Page 24: Removing The Carriage Assembly

    When installing the washer, pay attention to its direction. (The convex side should face the right parallelism adjustment bushing side.) See the figure on the next page. When installing the PG lever, see the figure below. 3-22 Figure 3-18. Installing the PG Lever EPSON Stylus COLOR 400 Service Manual...
  • Page 25 Left Parallelism Adjustment Bushing Washer (Convex side should face the bushing side during installation) Figure 3-19. Removing the Carriage Assembly EPSON Stylus COLOR 400 Service Manual Disassembly and Assembly Carriage Assembly CR Guide Shaft Right Parallelism Adjustment Bushing PG Lever Support...

  • Page 26: Removing The Pf Roller Assembly

    2. Remove the carriage assembly. (See Section 3.2.4.7.) 3. Remove 2 screws (No. 1) on the printer mechanism and disassemble the cable guide board. 4. Remove 6 upper paper guide assemblies, releasing their springs from the hooks in the frame.
  • Page 27 Figure 3-21. Removing the Paper Eject Roller Assembly Align the protrusions on the PF roller assembly with the holes in the frame to hold the shaft. PF Roller Assembly Figure 3-22. Removing the PF Roller Assembly EPSON Stylus COLOR 400 Service Manual 3-25...

  • Page 28: Removing The Pe Paper Sensor Assembly

    This side should be installed on the frame. PE Board Assembly Figure 3-23. Removing the PE Paper Sensor Assembly 3-26 (From back side of the frame) PE Holder Torsion Spring (0.22 g) EPSON Stylus COLOR 400 Service Manual PE Lever...

  • Page 29: Removing The Hp Sensor

    3.2.4.10 Removing the HP Sensor 1. Remove the housing. (See Section 3.2.1.) 2. Remove the cable from the HP sensor and take it out after releasing the attached hook. HP Sensor Figure 3-24. Removing the HP Sensor EPSON Stylus COLOR 400 Service Manual 3-27...

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