Toshiba e-STUDIO4500c Service Manual page 741

August, 2006 ARDF
6.4.9 ORIGINAL TRANSPORT (ONE-SIDED)
[C]
[B] [A]
[D]
[E]
[F]
[G]
[K]
[H]
B132D120.WMF
[I]
[J]
The pick-up roller [A] feeds the original to the feed belt [B] and separation roller [C].
When the skew correction sensor [D] detects the leading edge of the original, it
stops the feed motor for a set number of pulses to stop the entrance roller [E]. This
buckles the leading edge of the original against the entrance roller to correct skew.
The feed motor increases the speed of 1st transport roller [F] to feed the paper
faster and reduce the interval between the original that was just fed and the original
ahead that is now being scanned.
When the interval sensor [G] detects the leading edge of the original approaching
the scanning entrance roller [H], it slows the rotation of the scanning entrance roller
[H]. To this point the rate of feed is high. The interval sensor slows the paper so it
does not collide with the trailing edge of the paper ahead of it in the paper path.
Next, the transport belt [I] pulls the original across the ARDF scanning glass.
The 2nd transport roller [J] feeds the paper to the exit rollers [K]. The exit rollers
feed to paper out onto the original exit table.
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