Printer Self Repair

Epson R230 Repair Front Roller Replacement

2.1.3 Pre-Shipment Checks

When returning this product to the user after completing printer repair, check that the work is complete using the following table.

Table 2-2. Service Completion Pre-Shipment Check List

Classification

Check Point

Table 2-2. Service Completion Pre-Shipment Check List

Classification

Check Point

Main Unit	Self-test	Is the operation normal?	□ Checked D Not necessary
	On-line Test	Is the printing successful?	□ Checked D Not necessary
	Print Head	Is ink discharged normally from all the nozzles?	□ Checked D Not necessary
	Carriage Mechanism	Does it move smoothly?	□ Checked D Not necessary
		Is there any abnormal noise during its operation?	□ Checked D Not necessary
		Is there any dirt or foreign objects on the CR Guide Shaft?	□ Checked D Not necessary
		Is the CR Motor at the correct temperature? (Not too heated?)	□ Checked D Not necessary
	Paper Feeding Mechanism	• No multiple feeding? • No abnormal noise?	□ Checked D Not necessary
		Is the PF Motor at correct temperature?	□ Checked D Not necessary
		Is the paper path free of any obstructions?	□ Checked D Not necessary
Adjustment	Specified Adjustment	Are all the adjustment done correctly?	□ Checked D Not necessary

Table 2-2. Service Completion Pre-Shipment Check List

Classification	Item	Check Point	Status
Lubrication	Specified Lubrication	Are all the lubrication made at the specified points?	□ Checked D Not necessary
		Is the amount of lubrication correct?	□ Checked D Not necessary
Function	ROM Version	Is it the latest version? Version:	□ Checked D Not necessary
Packing	Ink Cartridge	Are the ink cartridges installed correctly?	□ Checked D Not necessary
	Protective Materials	Have all relevant protective materials been attached to the printer?	□ Checked D Not necessary
Others	Attachments, Accessories	Have all of the accessories been included in the package?	□ Checked D Not necessary

2.2 Caution regarding assembling/disassembling the printer mechanism, and how to ensure the quality of reassembled product

For the existing Low End models, it is basically forbidden to remove "Housing, Lower" from "Printer Mechanism". This is because the strength of "Frame, Main" is not strong enough, therefore, "Frame, Main" may be transformed when removing/ reinstalling it from/to "Housing, Lower".

For that reason, when replacing "Ink System" or "PF Motor", it is recommended to replace not only "Housing, Lower" but also "Printer Mechanism".

For this printer, it is necessary that "Housing, Lower" be removed from "Printer Mechanism" when replacing "Waste ink Pads" or "Ink System". Therefore, this chapter specifies the disassembly/assembly of "Printer Mechanism" which "Housing, Lower" has been taken out in order to secure the quality of the repaired items.

□ Caution for disassembly/assembly of Printer Mechanism

1. "Printer Mechanism" with "Housing, Lower"

• Do not hold "Guide Plate, CR" ^ Transforming of "Frame, Main" and "Guide Plate, CR" may give some bad influence to PG or printing.

• Do not touch "CR Guide Shaft" and/or the surface of the head nozzle.

2. "Printer Mechanism" without "Housing, Lower"

• Manage the standard values for installation. (See below)

• First, remove "Support Plate, Frame, Main". Then, remove "Roller PF Assy.", "Roller EJ Assy." and "Paper Guide, Front".

• Make sure to manage "Waste Ink Tube".

• Be careful with the interconnection of "Star Wheel/CDR Sensor" connector cable.

• Assemble "Cam, CR, Left" while gearing with the APG gear.

■ Management of the reference position for installation [Reason]

Accurate installation for each component of "Printer Mechanism" is on a basis of "Housing, Lower".

[Support for Service]

Check if there is no gap between "Frame, Main" and "Housing, Lower". [Reference]

In order to ensure the accuracy for installation, it is necessary to manage the reference position for installation in X, Y and Z direction.

• Check if "Frame, Main" is correctly set to the groove of "Housing, Lower".

• Check if there is no gap between "Frame, Main" and "Housing, Lower". [Y-axis]

• Check if the slot of "Frame, Main" is correctly attached to the projection of "Housing, Lower".

• Check if there is no gap between "Frame, Main" and "Housing, Lower".

• Check if correctly secured with the hooks (2 on the left, 1 on the right, 1 on the right front) of "Printer Mechanism".

■ Management of the perpendicular accuracy of "Guide Plate, CR" (The standards of the guide rail's perpendicular direction is on the basis of the hooks of "Carriage Unit" and "Print Head".)

[Reason]

Deformation of "Guide Plate, CR" may cause the defective print/operation. [Support for Service]

Specify the correct raising position for "Main Frame" so that it will not be deformed.

■ How to install "ASF Assy.", "Main Board" and "Paper Guide, Upper" [Reason]

When installing these three components, too much force can be given to "Frame, Main", therefore, it may be deformed and cause the defective print/ operation.

[Support for Service]

Hold the opposite side of the components securely, when installing them. 3. CDR Guide Assy.

■ Management of the level accuracy of "CDR Guide Assy." [Reason]

Deformation of "CDR Guide Assy." may cause the defective print. [Support for Service]

Disassemble/assemble carefully "CDR Guide Assy.".

□ How to secure the quality for reassembled products

It can be judged that the quality for the reassembled products is guaranteed if the printing test with the Adjustment program is successful.

2.3 Disassembly

The following flowchart shows the order of disassembling procedure. When disassembling any unit, refer to the page number shown in the flowchart.

Figure 2-1. Removing Procedure Flowchart

2.3.1 Removing Paper Support Assy.

□ External View

Paper Support Assy. 1

Figure 2-2. Removing "Paper Support Assy."

□ Parts/Units which should be removed before removing "Paper Support Unit"

None

□ Procedure for Removing

1. Release the dowels (x2) which secure "Paper Support Assy.". Then remove "Paper Support Assy." from "ASF Assy.".

Figure 2-2. Removing "Paper Support Assy."

2.3.2 Removing Housing, Upper

□ External View

Figure 2-3. Removing "Housing, Upper" (1)

Figure 2-4. Removing "Housing, Upper" (2)

Figure 2-4. Removing "Housing, Upper" (2)

□ Parts/Units which should be removed before removing "Housing, Upper"

Paper Support Assy.

□ Procedure for Removing

1. Push the damper shaft by putting in the tweezers or alike into the installing hole of "Printer Cover". Then, remove "Printer Cover".

2. Push up the rib of "Colour LCD Cover" and then remove "Colour LCD Cover".

3. Remove the screws (x4) which secure "Housing, Upper".

4. Release "Carriage Lock" with the tweezers or alike and then move "Carriage Unit" toward the centre.

5. Release the hooks (x4) which secure "Housing, Upper" and then lift up "Housing, Upper".

6. Detach "Panel FFC" from the connector of "Panel Board" and then remove "Housing, Upper".

reassembly

□ Tighten the screws in the order as shown in the figure.

□ Make sure to put the dowels (x2) of "Housing, Upper" into the attaching holes (x2) on "Printer Cover".

Figure 2-5. Reinstalling "Printer Cover"

2.3.3 Removing Housing, Middle

□ External View

Figure 2-6. Removing "Housing, Middle"

□ Parts/Units which should be removed before removing "Housing, Middle"

Paper Support Assy./Housing, Upper

□ Procedure for Removing

1. Remove the screw which secures "Cover, Core" and then remove "Cover, Core".

2. Pull out "Panel FFC" from "Ferrite Core".

3. Take off the two-sided tape which secures "Panel FFC" from "Housing, Middle". Then, release "Panel FFC" from the hooks (x2) of "Housing,

Middle".

4. Remove the screw which secures "Cover, Ink Tube", release the hook and then remove "Cover, Ink Tube".

5. Remove the screws (x4) which secure "Housing, Middle".

6. Lay down the printer backward, put a flat-blade screwdriver or alike into the slot located on the bottom surface of "Housing, Lower" and then release the hooks (x2) which secure "Housing, Middle".

CAUTION Do not damage the hooks of "Housing, Middle" with the flat-blade screwdriver or alike.

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