Pickup Tray Elevation - Canon imageFORMULA DR-G2140 Service Manual
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- User manual (161 pages)
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CHAPTER 2 FUNCTION & OPERATION
2. Pickup Tray Elevation
The maximum loading capacity of the
DR-G2140 and DR-G2110 is 500 sheets of
ordinary copy paper and that for the DR-
G2090 is 300 sheets. To handle a large num-
ber of documents, the pickup tray of this ma-
chine can be elevated. A structural drawing is
shown below.
There is a box unit with an elevating func-
tion under the pickup tray. The unit has 4 arms
that support the pickup tray. When the arms
turn sideways, the pickup tray is at the bottom
position. When the arms are rotated clock-
wise by the drive of the tray motor, the pickup
tray lifts. When they are rotated counterclock-
wise with erect arms, the pickup tray goes
down.
A tray home sensor is mounted next to
2-14
Figure 2-301
COPYRIGHT © CANON ELECTRONICS INC. 2018
the box unit. When part of the tray pad blocks
light from this sensor, the fact that the pickup
tray reaches the bottom (home position) can
be detected. The fact that the pickup tray
reaches the top (pickup position) can be de-
tected with a pickup sensor mounted near the
pickup roller.
If the pickup tray is at the bottom position
suitable for the maximum loading capacity,
waiting time until the pickup tray lifts to the
pickup position increases when a few docu-
ments are scanned. Thus, it has a function
that can set the standby position of the pickup
tray at 3 levels: top, middle, and bottom. How-
ever, the DR-G2090 has 2 levels: top and bot-
tom. The top or middle position is controlled
with the number of input pulses from the
home position to the tray motor.
CANON DR-G2140/G2110/G2090 FIRST EDITION
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