Epson ME100, Service Manual

Page: 76 / 135

EPSON Stylus CX1500/ME100 Revision A
DISASSEMBLY AND ASSEMBLY Caution regarding assembling/disassembling of the Printer Mechanism, and how to ensure of quality on re-assembled product 76
4.2 Caution regarding assembling/disassembling
of the Printer Mechanism, and how to ensure
of quality on re-assembled product
On current low end models, we basically forbade to remove Housing Lower (Inner)
from Printer mechanism in your repair. This is because there is a possibility of main
frame deformation when a part (such as Ink system) is removed from Printer
mechanism without Housing Lower (Inner).
Therefore, if you want to replace Ink system/PF motor, we recommend to replace with
new Printer mechanism with Housing Lower (Inner).
Therefore, we clarify caution regarding assembling/disassembling of the printer
mechanism without Housing Lower (Inner), and how to ensure of quality on repaired
production this section.
[Caution regarding assembling/disassembling of the printer mechanism]
1) Main Frame
(a) Control of assembled standard position.
[Reason]
• The assembled accuracy of each part composed of Printer mechanism is
based on Housing Lower (Inner).
[Service treatment]
• Confirm that there is no gap between main frame and Housing Lower
(Inner).
[Reference]
• To ensure the assembled accuracy, you have to control the assembled
standard position of main frame against X/Y/Z-axis direction.
[X-axis direction]
• Make sure that main frame is correctly placed on the groove of Housing
Lower (Inner).
• Make sure that there is no gap between main frame and Housing Lower
(Inner).
[Y-axis direction]
• Make sure that cut-out portion of main frame is correctly placed on the
square protrusion of Housing Lower (Inner).
[Z-axis direction]
• Make sure that there is no gap between main frame and Housing Lower
(Inner).
• Make sure that the left side of Printer mechanism is correctly fixed by one
hook.
(b) Control of vertical level of guide rail (Guide rail means the portion latched by
hooks of Holder IC & Print Head assy.)
[Reason]
• There is a possibility that printing failure/operation failure occurs by guide
rail deformation.
[Service treatment]
• Hold up the specified position of main frame to avoid the deformation.
(c) How to assemble of ASF Unit/Main Board/Paper Guide Upper
[Reason]
• There is a possibility that main frame deformation is caused extra force in
assembling. As the result, printing failure/operation failure occurs.
[Service treatment]
• Hold the opposite side by hand while you are installing the above parts.
2) Front Frame
(a) Control of vertical level
[Reason]
• There is a possibility that printing failure occurs by Front Frame
deformation.
[Service treatment]
• Handle Front Frame in assembling/disassembling carefully.
3) Holder IC
(a) Handling of Holder IC
[Reason]
• If Holder IC is damaged in assembling/disassembling of your repair, there is
a possibility that vital problem occur in user’s further operation.
[Service treatment]
• Released two hooks of Holder IC from the inside of Holder IC by tweezer.
[How to ensure of quality on re-assembled product]
We judge that the quality of re-assembled product is ensured if there is no problem
about the print result by adjustment program.