Ricoh D391, Service Manual

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3 Top Edge The top edge of the book.
4 Fore Edge
The front edge of the book; the edge of the signature opposite the spine. This
is edge of the book that the reader opens.
5 Bottom Edge The bottom edge of the book.
6 Cover
Covers the pages (signature) of the book. The cover and signature are glued
at the spine.
NOTE: The top, bottom, and fore edges of the book are trimmed in the trimming unit after the signature
has been glued to the cover.
Warnings, Cautions, Notes
In this manual, the following important symbols and notations are used.
• A Warning indicates a potentially hazardous situation. Failure to obey a Warning could result in
death or serious injury.
• A Caution indicates a potentially hazardous situation. Failure to obey a Caution could result in minor
or moderate injury or damage to the finisher or other property.
• Obey these guidelines to avoid problems such as misfeeds, damage to originals, loss of valuable
data and to prevent damage to the finisher.
• This information provides tips and advice about how to best service the finisher.
General Safety Instructions
For your safety, please read this manual carefully before you use this product. Keep this manual handy for
future reference.
Safety Information
Always obey the following safety precautions when using this product.
Safety During Operation
In this manual, the following important symbols and notations are used.
Switches and Symbols
3