Sindoh M401 - Registration Unit; Registration Unit Components; Registration Unit Drive

Registration Unit
Registration Unit aligns the papers fed from feeder to not to have skew occurrences when printing
image to the paper.
Registration Unit Components
Registration Unit is composed with the following 3 components.
1) Registration driving roller
2) Top Registration guide and pressure backup roller
3) Registration dam and spring to align paper
Registration Unit Drive
When a paper is fed from main tray or bypass tray, the paper enters into Registration unit by the guide
and the paper temporarily gets stopped by Registration dam.
The feeding got suspended by Registration dam, but the paper gets transferred by pickup roller’s
rotation and at here, top part of paper gets a slight curl with this rotation and suspension and during this
operation, the paper gets aligned.
The paper with curl on the top pushes Registration dam when it gets pressure over a certain pressure
continuously and when the dam gets unlocked by it, the top of the paper get caught between
Registration driving roller and backup roller to transfer the paper into the printer.
Top Registration Guide
Registration Dam
Paper Feeding Direction