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Q1860-90918 Chapter 5 Functional information 99
Reversing system
The duplexing driver PCA receives the duplex admission command from the printer first. It turns
on the duplexer deflector drive solenoid (SL1701), and the duplexer deflector in the printer then
starts to send the paper into the duplexer. Within a specified period of time after receiving the
command, the duplexing driver PCA also drives the reversing motor (PM1701) to turn the
reversing rollers 1, 2, and 3 in the direction shown in figure 31.
Figure 31. Duplexer
Within a specified period of time after the trailing edge of the paper is detected with the reversing
unit paper sensor (PS1701), the duplexing driver PCA pauses the rotation of the reversing motor
(PM1701). The duplexing driver PCA then switches the reversing motor (PM1701) to reverse
rotation.
As the the leading edge of the paper is fed into the feed guide, it is fed through the reversing
roller 4 and the feed roller 1 of the duplexer.
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