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The CIS ASSY consists of CIS frame and CIS, springs making CIS contacted to the glass,
both side wheel and guides getting Assy drive smoothly and sub-frame being contacted to
the rails. In case CIS ASSY is not properly assembled, there could be problems in CIS
driving when scanning images, and it may lower the image quality. Upon the assembly
status of the sub-drame and CIS frame, there may occur flatbed scan skews and the skew
can be some corrected by reversely changing the assembly status of two parts when a
skew occurs.
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Components Layout of Drive ASSY
The Drive ASSY consists of motors and brackets, dampers stopping the vibration of the
motor, two driving gears reducing rev count, a timing belt delivering the driving force to CIS
Assy, Belt pullys, a Pully housing and springs giving tension to the timing belt.
When driving, the noise from resonance at the specific speed can be reduced by adjusting
the strength of the springs of timing belt and the CIS springs which leads to the adjustment
of the strength of the entire systems and moves the resonance area to else where.
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