Canon PH-72 User manual

SERVICE MANUAL
PARTS CATALOG
REVISION 0
COPYRIGHT 1999 CANON INC. CANON PAPER HANDLING CONTROLLER PH-72 REV. 0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
RY8-1397-000
JAN. 1999
PAPER HANDLING
CONTROLLER

COPYRIGHT ©1999 CANON INC.
Printed in Japan
Imprimé au Japon
Use of this manual should be
strictly supervised to avoid
disclosure of confidential
information.
Prepared by
PERIPHERAL PRODUCTS QUALITY PLANNING DIV.
PERIPHERAL PRODUCTS TECHNICAL DOCUMENTATION DEPT.
CANON INC.
5-1 Hakusan 7-chome, Toride-City, Ibaraki-Pref.,302-8501 Japan

PREFACE
This Service Manual contains basic information required for after-sales service of Paper
Handling Controller PH-72. This information is vital to the service technician in maintaining
the high quality and performance of the controller.
This manual consists of the following chapters:
Chapter 1: Product information
Features, specifications and basic operation
Chapter 2: The Mechanical System
Installation procedure and malfunction troubleshooting
Chapter 3: Parts Catalog
Paper handling controller PCB assembly
Appendix: Paper handling controller circuit diagram
Information in this manual is subject to change as the product is improved or redesigned.
All relevant information in such cases will be supplied in Service Information Bulletins.
A thorough understanding of this controller, based on information in this Manual and Service
Information Bulletins is required for maintaining its performance and for locating and repairing
malfunctions.

DTP system
This manual was produced on an Apple PowerMacintosh 9500/200 personal computer and output by an
Apple LaserWriter 16/600 PS laser beam printer; final pages were printed on AGFA Selectset avantra 25.
All graphics were produced with Macromedia FreeHand (E), and all documents and page layouts were
created with QuarkXPress (E).
The video images were captured with SONY degital video camcorder and Radius Photo DV capture
board, and modified with Adobe Photoshop(J).

CONTENTS
CHAPTER 1 PRODUCT INFORMATION
I. FEATURES ............................. 1-1
II. SPECIFICATIONS.................... 1-2
A. Paper Handling Controller . 1-2
B. Interface Connector
Locations .......................... 1-2
C. System Block Diagram....... 1-3
D. Interface Connector .......... 1-4
III. BASIC OPERATION ................. 1-6
A. Outline.............................. 1-6
B. Operations by Block .......... 1-7
C. Operation Outline.............. 1-8
CHAPTER 2 THE MECHANICAL SYSTEM
CHAPTER 3 PARTS CATALOG
I. INSTALLATION PROCEDURE .. 2-1
II. MALFUNCTION
TROUBLESHOOTING .............. 2-3
A. Initial Check ..................... 2-3
B. Malfunction
Troubleshooting ................ 2-3
I. PAPER HANDLING CONTROLLER
PCB ASSEMBLY...................... 3-1
APPENDIX
I. PAPER HANDLING CONTROLLER
CIRCUIT DIAGRAM................. A-1

CHAPTER 1
PRODUCT INFORMATION
I. FEATURES ............................. 1-1
II. SPECIFICATIONS.................... 1-2
III. BASIC OPERATION ................. 1-6

I. FEATURES
1. Option I/O device connection
By installing the Paper Handling Controller in the printer, connections with optional input
devices (high capacity decks with multiple decks of up to 10 decks with a maximum capacity of
6300 pages) and optional output devices (sorters and staple stackers with a maximum of 63
bins) are made possible.
2. Wide range of options capability
By installing the Paper Handling Controller in the printer, a maximum of 5 optional I/O devices
can be connected.
1 - 1
CHAPTER 1

II. SPECIFICATIONS
A. Paper Handling Controller
1) CPU NEC UPD784020GC-3B9
Memory (RAM) 512 bytes
Frequency 25 MHz
2) EPROM TEXAS INSTRUMENTS TMS27C512-12JL
64K bytes
3) SRAM TOSHIBA TC55257DFL-70L
32K bytes
B. Interface Connector Locations
Figure 1-2-1
1 - 2
CHAPTER 1
Paper Handling Controller I/F
Paper Handling Controller Optional input/output device I/F