CANON LBP 3260 EF-9 Service Manual

SERVICE
MANUAL

REVISION 0

COPYRIGHT  1999 CANON INC. CANON ENVELOPE FEEDER EF-9 REV. 0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

RY8-1391-000

JAN. 1999

ENVELOPE FEEDER

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 Envelope
feeder EF-9 (hereinafter referred to as the envelope feeder). This information is vital to the
service technician in maintaining the high performance of the envelope feeder.

This manual consists of the following chapters:

Chapter 1: Product information

Specifications, parts of the deck, and installation

Chapter 2: Operation and Timing

A description of the operating principles and timing sequences of the electrical and
mechanical systems.

Chapter 3: The Mechanical System

Explanation of mechanical operation, disassembly, reassembly, and adjustment
procedures

Chapter 4: Troubleshooting

Maintenance and servicing, reference values and adjustments, troubleshooting
procedures, lubricants, and solvents

Appendix: General circuit diagram, etc.

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 paper deck, 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 9500/233 personal computer and output by an
Apple LaserWriter 16/600 PS laser beam printer; final pages were printed on DAINIPPON SCREEN MFG
CO. LTD DT-R3100.

All graphics were produced with Macromedia FreeHand (J), and all documents and page layouts were

created with QuarkXPress (E).

The video images were captured with SONY degital video camcorder and Radius PhotoDV capture

board system, and modified with Adobe Photoshop (J).

CONTENTS

CHAPTER 1 PRODUCT INFORMATION

I. FEATURES ............................ 1-1

II. SPECIFICATIONS ................... 1-2

III. PARTS OF THE ENVELOPE

FEEDER ................................ 1-3

A. External View .................... 1-3

B. Cross Sectional View ......... 1-4

IV. INSTALLATION ...................... 1-5

CHAPTER 2 OPERATION AND TIMING

CHAPTER 3 THE MECHANICAL SYSTEM

I. BASIC OPERATION ................ 2-1

A. Outline ............................. 2-1

B. Envelope Feeder

Input/Output Signals ....... 2-2

II. PICK-UP/FEED SYSTEM ........ 2-3

A. Pick-up/Feed System ....... 2-3

B. Multi-feed Prevention

Mechanism ....................... 2-5

C. Paper Jam Detection ........ 2-6

I. PREFACE .............................. 3-1

II. EXTERNALS .......................... 3-2

A. Locations ......................... 3-2

III. MAIN UNITS .......................... 3-5

A. Drive Unit ......................... 3-5

IV. MAIN PARTS .......................... 3-6

A. Pick-up Roller ................... 3-6

B. Lower Separation Roller,

Upper Separation Roller and

Torque Limiter ................. 3-6

V. MOTOR/SENSOR ................... 3-8

A. Locations ......................... 3-8

B. Pick-up Motor ................... 3-8

C. Envelope Feeder Paper

Sensor .............................. 3-9

VI. PCB ....................................... 3-10

A. Location ........................... 3-10

B. Envelope Feeder driver

PCB .................................. 3-10

CHAPTER 4 TROUBLESHOOTING

I. PREFACE .............................. 4-1

A. Malfunction Diagnosis

Flowchart ......................... 4-1

B. Initial Checks ................... 4-3

II. PAPER JAMS ......................... 4-4

III. PAPER TRANSPORT

TROUBLESHOOTING ............. 4-5

IV. MALFUNCTION

TROUBLESHOOTING ............. 4-6

V. MALFUNCTION STATUS

TROUBLESHOOTING ............. 4-7

VI. MEASUREMENT AND

ADJUSTMENT ....................... 4-8

A. Mechanical Adjustment .... 4-8

B. Electrical Adjustment ....... 4-9

C. Variable resistors, LEDs,

test pins, jumpers and

switches on PCBs ............. 4-9

VII. MAINTENANCE AND

SERVICING ............................ 4-10

A. Periodic Replacement

Parts ................................ 4-10

B. Expected Service Life of

Consumable Parts ............. 4-10

C. Periodic Service ................ 4-10

D. Standard Tools ................. 4-10

E. Special Tools .................... 4-10

F. Solvents and Oil List ........ 4-11

VIII.LOCATION OF CONNECTORS . 4-12

APPENDIX

I. GENERAL CIRCUIT DIAGRAM

/LIST OF SIGNALS ............... A-1

A. General Circuit Diagram ... A-1
B. Input/output signals to/

from Envelope Feeder Driver

PCB .................................. A-1

CHAPTER 1

PRODUCT INFORMATION

I. FEATURES ............................ 1-1

II. SPECIFICATIONS ................... 1-2

III. PARTS OF THE ENVELOPE

FEEDER ................................ 1-3

IV. INSTALLATION ...................... 1-5

I. FEATURES

1. Common option

This envelope feeder can be installed in the LBP-2460 printer and LBP-3260 printer.

2. Continuous printing

The maximum of 100 envelopes can be set on the envelope feeder for large-volume continuous
printing.

1 - 1

CHAPTER 1

II. SPECIFICATIONS

1) Type Single-motion insertion type

2) Pick-up speed About 16 pages/min.

3) Envelope size From 98.4mm (width) x 190.5mm (length) (minimum) to 176mm
(width) x 250mm (length) (maximum) sized envelopes.

4) Envelope type Commercial #10, C5, DL, MONARCH and B5-ISO.

5) Capacity 73mm stack or 100 envelopes whichever the least.

6) Dimensions 368mm (W) x 320mm (D) x 140mm (H)

7) Weight About 3kg

8) Power supply DC24V (supplied from the printer)

Specifications are subject to change with product improvement.

1 - 2

CHAPTER 1

III. PARTS OF THE ENVELOPE FEEDER

A. External View

Figure 1-3-1

1: Connector
2: Positioning pins
3: Front guides
4: Weight
5: Rear guides
6: Expansion tray

1 - 3

CHAPTER 1

➀

➁

➃

➂

➄

➅

B. Cross Sectional View

Figure 1-3-2

1: Feed rollers
2: Separation guide
3: Envelope feeder paper sensor lever
4: Pick-up rollers
5: Separation rollers

1 - 4

CHAPTER 1

➀➁➂

➃➄

IV. INSTALLATION

Condensation will form on surfaces when brought into a warm room from the cold.
Condensation on the surfaces of the envelope feeder can cause feeding failures. Therefore, when
moving the envelope feeder to a warm environment, leave it packed in its box for at least an hour
to acclimatize to room temperature.
Follows the procedures below to install the envelope feeder in the printer.

1) Open the envelope feeder packaging.

2) Take off the plastic bag and peel the tape off. Check that none of the covers have been
scratched or deformed during shipment.

3) Remove the packing materials from the envelope feeder.

4) Open the multi-purpose tray and remove the envelope feeder slot cover.

5) Holding the envelope feeder in both hands, install it into the printer.

Note: Be sure to turn OFF the printer before installing the envelope feeder.

1 - 5

CHAPTER 1

CHAPTER 2

OPERATION AND TIMING

1. This chapter describes the envelope feeder functions, the relationships between
mechanisms and circuits, and the timing of operations. Mechanical linkages are indicated
by black and white lines ( ), the flow of control signals by solid arrows ( ),
and the flow of groups of signals by outline arrows ( ).

2. An active-high signal is indicated by "H" or by a signal name without a slash in front of it,
such as "PSNS." An active-low signal is indicated by "L" or by a signal name with a slash in
front of, such as "/SCNON."

A signal that is "H" or has a name without a slash is active at the supply voltage level
(indicating that the signal is being output), and inactive at ground level (indicating that the
signal is not being output).

A signal that is "L" or has a slash in front of its name is active at ground level, and

inactive at the supply voltage level.

There is a microcomputer in this printer. But as the internal operation of the
microcomputer cannot be checked, an explanation of the operation of the microcomputer
has been left out.

As it is assumed that no repair will be made to customer circuit boards, the explanation
of board circuits is limited to an outline using block diagrams. So there are two types of
circuit explanations; (1) everything from the sensor to the input sections of the major circuit
boards, (2) everything from the output sections of the major circuit boards to the loads.
These are explained with block diagrams according to the function.

I. BASIC OPERATION ................ 2-1 II. PICK-UP/FEED SYSTEM ........ 2-3

I. BASIC OPERATION

A. Outline

The envelope feeder feeds envelopes into the printer.

The envelope feeder is controlled by the pick-up commands (1st Start and 2nd Start) sent

from the DC controller in the printer.

Operation sequences of the envelope feeder are controlled by the envelope feeder driver PCB.
A 4 bit microcomputer (CPU, IC932) and a gate array (G.A., IC931) are installed on the PCB. The
CPU serially communicates with the DC controller in the printer via the gate array.

The CPU drives the pick-up motor in response to the pick-up commands (1st Start and 2nd
Start) sent from the DC controller.

+24VDC is supplied to the envelope feeder from the printer. +5VDC for the ICs and sensors
is generated within the envelope feeder driver PCB from this +24VDC.

The flow of the signals between the envelope feeder and the printer is shown below.

Figure 2-1-1

2 - 1

CHAPTER 2

Envelope feeder driver PCB

DC controller PCB

Printer

Serial line

+24VA

IC 931

Gate array

Bus

IC 932

CPU

Envelope feeder

paper sensor

Motor drive

circuit

Pick-up motor