Ricoh D391, Service Manual

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Book Binding
Overview
After paper sent from the host machine is aligned for binding in the stacking tray, the stack (signature) is
aligned for gluing. Glue is applied to the spine of the signature and then the signature is joined with the
cover. Next, the bound signature and cover (the book) is trimmed on its three open edges in the trimming
unit.
Here is a summary of the bookbinding operation flow.
Paper sent from the host machine passes through the signature path [A] and out the signature
path exit [B].
The paper is stacked and aligned (jogged) on the stacking tray [C] so all the edges are even.
As each sheet enters the stacking tray, its sides are aligned by the front and rear jogger fence
and a positioning roller pulls the sheet to the right to align the trailing edge.
Book Binding
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