Specifications

COPYRIGHT © 1999 CANON INC. CANON SUPER G3 FAX BOARD-F1 REV.0 MAY 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
i
INTRODUCTION
This Service Manual provides the following:
• Descriptions of the product quality and functions of the FAX Board installed to the
GP405/335 Series.
• Descriptions of the board needed when servicing in the field.
For basic information on product quality and functions needed to service a GP405/335
Series machine in the field, refer to the GP405/335 Series Service Manual.
This manual consists of the following chapters:
Chapter 1 Introduction, provides an outline of the product and its specifications
together with points to note for servicing work.
Chapter 2 Operation, explains basic mechanisms and functions.
Chapter 3 Mechanical, explains circuits and modular units used for fax functions.
Chapter 4 Service Mode, explains service soft switches.
Chapter 5 Error Codes, explains error codes and various reports.
Appendix provides general circuit diagrams.
The information in this manual is subject to change for product improvement, and
major changes will be communicated in the form of a Service Information bulletin.
All service persons are encouraged to go through the contents of this Service Manual
and each Service Information bulletin to develop a thorough understanding of the product
and to be able to identify any fault that may occur over the life of the product.