Feed System; Outline; Iii. Feed System - Canon imageFORMULA DR-X10C Service Manual

CHAPTER 2 FUNCTION & OPERATION

III. FEED SYSTEM

1. Outline

The drive rollers are driven by a motor
and rotated by transmission of gears and
timing belts. The motor is assembled for other
purposes than rotation of the drive rollers.
Sensors for feed control are also mounted.
The main characteristics of the feed sys-
tem of this machine are shown below.
1) Pickup tray elevation
The elevation and the stop position of the
pickup tray can be controlled. The standby
position can be selected from 3 levels in
the user mode and the pickup tray can be
opened automatically when the power is
turned ON.
2) Independent mechanism operation of the
right and left document guides
The right and left document guides can be
slid together and independently of each
other. Thus, the reference position at
which a document is loaded can be set
arbitrarily.
3) Separation torque control
The number of revolutions and torque of
the separation motor can be controlled.
Thus, the separation force can be selected
from 5 levels in the user mode according to
the type of document.
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4) Ultrasonic Sensor
This machine contains 3 sets of ultrasonic
sensors. The double feeds of left- or
right-justified documents can be detected
by the sensors. An ultrasonic sensor to be
enabled
non-detection area in the feed direction
can be set for each sensor by setting a
driver.
5) Double feed retry
If a double feed is detected by the ultra-
sonic sensor, the doubly-fed document
can be returned automatically to the
pickup inlet without ejecting it and the
document can be fed again and separation
can be retried. Therefore, scanning can be
continued. In the user mode, the number of
repetitions can be selected and this func-
tion can be disabled.
6) Eject speed control
If documents are fed at a high speed and
ejected at the same speed, alignment of
the documents deteriorates. The speed
when the trailing edge of the document is
ejected is reduced and deterioration of
alignment is prevented by controlling the
number of revolutions of the eject motor.
7) Staple detection
Feeding of stapled documents can be
stopped by installing a dedicated sensor at
the pickup inlet.
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CANON DR-X10C FIRST EDITION
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