And How To Ensure The Quality Of Reassembled Product - Epson Stylus Photo R220 Service Manual

EPSON Stylus Photo R220/R230
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 the Lower
Housing from the Printer Mechanism. This is because the strength of the Main Frame
is not strong enough, therefore, the Main Frame may be deformed when removing/
reinstalling it from/to the Lower Housing.
For that reason, when replacing the Ink System or the PF Motor, it is recommended to
replace not only the Lower Housing but also the Printer Mechanism.
For this printer, it is necessary that the Lower Housing be removed from the Printer
Mechanism when replacing the Waste ink Pads or the Ink System Unit.
Therefore, this chapter specifies the disassembly/assembly of the Printer Mechanism
which the Lower Housing has been taken out in order to secure the quality of the
repaired items.
Cautions for disassembly/assembly of the Printer Mechanism
1. the Printer Mechanism with the Lower Housing
• Do not hold the Guide Plate, CR ⇒ Deforming of the Main Frame and
the Guide Plate, CR may give some bad influence to PG or printing.
• Do not touch the CR Guide Shaft and the surface of the head nozzle.
• Note that the screws that secure the Main Board is M4, not M6. If you use
M6 screw mistakenly, it will interfere with the Carriage.
• Be careful not to let the damper of the CDR come off as it is secured by
the Lower Housing.
2. the Printer Mechanism without the Lower Housing
• Make sure the exact attaching position in all X, Y and Z directions. See
the Ensuring the attaching position in X, Y and Z directions.
• Be sure to remove the Frame Support before removing the PF Roller
Unit, Roller EJ, and the Front Paper Guide.
• Be sure to confirm that The Waste Ink Tube is correctly installed.
• Be sure to route the cables of the Guide and Tray Sensor correctly.
• The APG gear must be engaged properly.
DISASSEMBLY / ASSEMBLY Caution regarding assembling/disassembling the printer mechanism, and how to ensure the quality of reassembled product
Ensuring the attaching position in X, Y and Z directions.
Installing each part or component of the Printer Mechanism accurately can be
made by determining the positions of them in relation to the Lower Housing.
[When Servicing]
Check that there is no gap between the Main Frame and the Lower Housing.
[Reference]
In order to ensure the accuracy of installation positions, it is necessary to
make sure the positions in X, Y and Z directions.
[X-axis direction]
• Check if the Main Frame is correctly set to the groove of the Lower
Housing.
• Check if there is no gap between the Main Frame and the Lower Housing.
[Y-axis direction]
• Check if the slot of the Main Frame is correctly attached to the projection
of the Lower Housing.
[Z-axis direction]
• Check if there is no gap between the Main Frame and the Lower Housing.
• Check if correctly secured with the tabs (2 on the left, 1 on the right,
1 on the right front) of the Printer Mechanism.
Maintaining the perpendicularity of the Guide Rail (The Guide Rail is secured
by the Ink Cartridge Holder and the Print Head).
Deformation of the Guide Plate, CR may cause the defective print/operation.
[When Servicing]
Specify the correct raising position for the Main Frame so that it will not be
deformed.
Installing the ASF Unit, the Main Board and the Paper Guide, Upper
Forces exerted on the Main Frame when installing the three components may
deform the frame resulting in a malfunction of the printer or print quality
problem.
[When Servicing]
Hold the opposite side of the components securely, when installing them.
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