Inverter Mechanism - Ricoh D009 Service Manual

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6.13.3 INVERTER MECHANISM

The paper is fed to the duplex path in duplex mode after junction gate 1 [A] opens the duplex

path. The duplex inverter motor moves the paper into the inverter, as far as the switching

back position. The duplex inverter plate always closes the path to the inverter by spring

tension. However, this spring tension is low, so the force from the leading edge of the paper

can open the duplex inverter plate.

Then, after the duplex entrance sensor [C] detects the trailing edge of the paper, the duplex

inverter motor stops, and the duplex inverter plate [B] opens the duplex feed path (the plate

is always open by spring tension). Then, the duplex inverter motor reverses and moves the

paper from the switching position to the duplex feed path.

In the duplex feed path, the paper is fed by the transport rollers (these rollers are driven by

the duplex inverter motor) and the duplex/by-pass transport roller (this roller is driven by the

duplex/by-pass motor). When the machine gets a multi-page duplex printing job, the duplex

exit sensor [D] controls the duplex inverter motor and duplex/by-pass motor to synchronize

the duplex feed timing.

D009/D011/D012/D013

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D011 D012 D013