Canon NP6350, NP6251 Service Manual

SERVICE MANUAL

REVISION 0

FY8-13F0-000

JULY 1997

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IMPORTANT

THIS DOCUMENTATION IS PUBLISHED BY CANON INC., JAPAN, TO SERVE AS A SOURCE OF REFERENCE FOR WORK IN THE FIELD.

SPECIFICA TIONS AND OTHER INFORMATION CONTAINED HEREIN MA Y VARY SLIGHTLY FROM ACTUAL MACHINE VALUES OR THOSE FOUND IN ADVERTISING AND OTHER PRINTED MATTER.

ANY QUESTIONS REGARDING INFORMATION CONTAINED HEREIN SHOULD BE DIRECTED TO THE COPIER SERVICE DEPARTMENT OF THE SALES COMPANY.

THIS DOCUMENTATION IS INTENDED FOR ALL SALES AREAS, AND MAY CONTAIN INFORMATION NOT APPLICABLE TO CERTAIN AREAS.

Printed in Japan

Imprimé au Japon

Use of this manual should be strictly supervised to avoid disclosure of confidential information.

Prepared by

OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPARTMENT 1

OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIVISION

CANON INC.

5-1, Hakusan 7-chome, Toride-shi, Ibaraki 302 Japan

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INTRODUCTION

This Service Manual contains basic data and figures on the plain paper copier

NP6350/NP6251 needed to service the machine in the field.

The NP6350/NP6251 is designed to enable full automatic copying work, and comes

with the following systems accessories:

1. Stapler Sorter-E2

2. RDF-D1

3. Paper Deck-A1

4. Sorter-G1 This Service Manual covers the copier only, and consists of the following chapters:

Chapter 1 General Description introduces the copier’s features and specifications,

shows how to operate the copier, and explains how copies are made.

Chapter 2 Basic Operation provides outlines of the copier's various mechanical

workings.

Chapter 3 Exposure System discusses the principles of operation used for the

copier's lens drive unit and scanner drive unit. It also explains the timing at which these drive units are operated, and shows how they may be disassembled/assembled and adjusted.

Chapter 4 Image Formation System discusses the principles of how images are

formed. It also explains the timing at which the various units involved in image formation are operated, and shows how they may be disassembled/assembled and adjusted.

Chapter 5 Pick-Up/Feeding System explains the principles used from when copy

paper is picked up to when a copy is delivered in view of the functions of electrical and mechanical units and in relation to their timing of operation. It also shows how these units may be disassembled/assembled and adjusted.

Chapter 6 Fixing System explains the principles used to fuse toner images to

transfer media in view of the functions of electrical and mechanical units and in relation to their timing of operation. It also shows how these units may be disassembled/assembled and adjusted.

Chapter 7 Externals/Auxiliary Mechanisms shows the copier’s external parts, and

explains the principles used for the copier’s various control mechanisms in view of the functions of electrical and mechanical units and in relation to their timing of operation. It also shows how these units may be disassembled/assembled and adjusted.

Chapter 8 Paper Deck-A1 explains the principles used from when copy paper is

picked up to when a copy is delivered in view of the functions of electrical and mechanical units and in relation to their timing of operation. It also shows how these units may be disassembled/assembled and adjusted.

Chapter 9 Installation introduces requirements for the site of installation, and shows

how the copier may be installed using step-by-step instructions.

Chapter 10 Maintenance and Servicing provides tables of periodically replaced parts

and consumables/durables and scheduled servicing charts.

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Chapter 11 Troubleshooting provides tables of maintenance/inspection,

standards/adjustments, and problem identification (image fault/malfunction).

Appendix contains a general timing chart and general circuit diagrams.

The following rules apply throughout this Service Manual:

1. Each chapter contains sections explaining the purpose of specific functions and the relationship between electrical and mechanical systems with reference to the timing of operation.

In the diagrams, represents the path of mechanical drive—where a signal name accompanies the symbol , the arrow indicates the direction of the electric signal.

The expression “turn on the power” means flipping on the power switch, closing the front door, and closing the delivery unit door, which results in supplying the machine with power.

2. In the digital circuits, ‘1’ is used to indicate that the voltage level of a given signal is “High,” while ‘0’ is used to indicate “Low.” (The voltage value, however, differs from circuit to circuit.)

In practically all cases, the internal mechanisms of a microprocessor cannot be checked in the field. Therefore, the operations of the microprocessors used in the machines are not discussed: they are explained in terms of from sensors to the input of the DC controller PCB and from the output of the DC controller PCB to the loads.

The descriptions in this Service Manual are subject to change without notice for product improvement or other purposes, and major changes will be communicated in the form of Service Information bulletins.

All service persons are expected to have a good understanding of the contents of this Service Manual and all relevant Service Information bulletins and be able to identify and isolate faults in the machine.

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System Configuration

Stapler Sorter-E2

RDF-D1

NP6350/NP6251

(front paper deck + cassette type)

Paper Deck-A1

Sorter G1

Control Card V

It feeds a stack of originals to the copier, sheet by sheet.

It allows control of copy volume.

It can automatically sort and group copies.

It can accommodate as many as 3,500 sheets of A4/B5/LTR paper.

In addition to the functions of the 20-Bin Stapler Sorter, it can automatically staple sorted copies. It also is equipped with a front access function, in which copies may be removed from the front, and a multiple stacking function, in which two or more sets may be delivered in a single bin.

The NP6350/NP6251 is designed to accommodate the following accessories:

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iii

1. GENERAL DESCRIPTION

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CHAPTER 1 GENERAL DESCRIPTION

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

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

A. Copier............................................1-2

1. Type..........................................1-2

2. Mechanisms .............................1-2

3. Performance.............................1-3

4. Others.......................................1-6

B. Paper Deck-A1 ..............................1-9

III. NAMES OF PARTS............................1-10

A. External View.................................1-10

B. Cross Section ................................1-12

1. Copier.......................................1-12

IV. OPERATING THE MACHINE .............1-13

A. Control Panel.................................1-13

B. Extended Modes ...........................1-14

C. User Mode.....................................1-15

1. Types of User Modes...............1-15

V. ROUTINE MAINTENANCE BY THE

USER..................................................1-19

VI. POINTS TO NOTE (BY THE USER) .1-19

VII. IMAGE FORMATION ..........................1-20

A. Outline ...........................................1-20

CHAPTER 2 BASIC OPERATION

I. BASIC MECHANISMS .......................2-1

A. Functional Construction.................2-1

B. Outline of the Electrical Circuitry...2-2

C. Basic Sequence of Operations......2-4

1. Basic Sequence of Operations

at Power-On (1/2).....................2-4

2. Basic Sequence of Operations

at Power-On (2/2).....................2-5

3. Basic Sequence of

Operations................................2-7

4. Basic Sequence of Operations

in Page Separation Mode.........2-9

D. Main Motor (M1) Control Circuitry..2-11

1. Outline......................................2-11

2. Operation..................................2-12

3. Detecting an Error....................2-12

E. Inputs to the DC Controller ............2-13

F. Outputs from the DC Controller .....2-21

G. Inputs to and Outputs from

Accessories...................................2-32

CHAPTER 3 EXPOSURE SYSTEM

I. OUTLINE OF OPERATION................3-1

A. Varying the Reproduction Ratio.....3-1

II. LENS DRIVE SYSTEM ......................3-2

A. Moving of the Lens........................3-2

1. Outline of the Movement..........3-2

2. Moving the Lens.......................3-3

3. Lens Motor Control Circuit .......3-3

4. Moving the Lens.......................3-4

III. SCANNER DRIVE SYSTEM..............3-6

A. Scanner Movement .......................3-6

1. Outline of Movement................3-6

2. Relationship between the Scanner Sensors and the

Signals......................................3-7

3. Basic Sequence of Operations ..3-8

4. Movement of the Scanner in

Page Separation Mode ............3-9

5. Movement of the Scanner with the RDF in Use (A4, 2 originals,

1 copy)......................................3-11

6. Movement of the Scanner with the RDF in Use (A4, 2 copies)..3-13

7. Scanner Motor (M3) Control

Circuit .......................................3-17

IV. OTHERS.............................................3-20

A. Original Size Detection..................3-20

1. Outline of Detection..................3-20

2. Operation..................................3-21

3. Sizes of Originals .....................3-22

V. DISASSEMBLY AND ASSEMBLY......3-23

A. Scanner Drive Assembly...............3-24

1. Removing the Scanner Drive

Motor ........................................3-24

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2. Routing the Scanner Drive

Cable........................................3-26

3. Orienting the Heat Absorbing

Glass ........................................3-26

4. Removing the Scanner Drive

Cable........................................3-27

5. Adjusting the Tension of the

Scanner Drive Cable................3-29

6. Positioning the Mirror ...............3-29

7. Adjusting the Scanner Home

Position.....................................3-30

8. Positioning the Scanner Locking

Solenoid (SL1)..........................3-31

B. Lens Drive Assembly .....................3-32

1. Removing the Lens Y Direction

Drive Motor ...............................3-32

2. Removing the Lens Stage

Temporarily...............................3-34

3. Installing the Light-Blocking

Belt Mount................................3-35

4. Removing the Lens X Direction

Drive Motor ...............................3-36

5. Attaching the Lens X Direction

Drive Belt ..................................3-37

6. Routing the Light-Blocking

Belt ...........................................3-37

7. Replacing the Light-

Blocking Belt.............................3-38

CHAPTER 4 IMAGE FORMATION SYSTEM

I. PROCESSES .....................................4-1

A. Controlling the Drum Surface

Potential.........................................4-1

1. Outline......................................4-1

2. Control Method .........................4-2

3. Potential Measurement Circuit..4-4

B. Controlling the Intensity of the

Scanning Lamp .............................4-6

1. Outline......................................4-6

2. Operation..................................4-7

3. Auto Exposure Control.............4-7

4. Making Checks .........................4-10

C. Controlling the Primary/Transfer

Corona Current..............................4-11

1. Outline......................................4-11

2. Controlling the Primary

Corona Current.........................4-11

3. Controlling the Transfer

Corona Current.........................4-13

D. Controlling the Separation/Pre-

Transfer Corona Current...............4-15

1. Outline......................................4-15

2. Turning ON and OFF the Separation/ Pre-Transfer

Corona Current.........................4-16

3. Separation Corona Current

(DC component).......................4-17

4. Pre-Transfer Corona Current

(DC component).......................4-17

5. Controlling the DC Component of the Separation/Pre-Transfer

Corona Current.........................4-18

E. Controlling the Blanking Exposure

Lamp (LED)...................................4-19

1. Outline......................................4-19

2. Controlling the Activation in

Reduce Mode...........................4-19

3. Controlling the Activation in

Direct Mode..............................4-19

4. Controlling the Activation in

Sheet Frame Erase Mode........4-19

5. Controlling the Activation in

Original Frame Erase Mode.....4-20

6. Controlling the Activation in

Book Frame Erase Mode.........4-20

7. Controlling the Activation in

Hole Image Erase Mode ..........4-21

8. Controlling the Activation in

AE Mode...................................4-21

F. Drum Heater Circuit .......................4-22

1. Outline......................................4-22

2. Idle Rotation of the Photosensitive Drum and the

Developing Cylinder.................4-24

G. Cleaning the Primary Charging

Wire...............................................4-25

1. Outline......................................4-25

2. Automatic Cleaning

Mechanism...............................4-25

H. Pre-Transfer/Transfer/Separation

Charging Wire Automatic

Cleaning Mechanism.....................4-26

II. DRUM CLEANING ASSEMBLY

/DEVELOPING ASSEMBLY...............4-28

A. Outline ...........................................4-28

B. Detecting the Level of Toner and

Controlling the Supply Operation ..4-30

C. Controlling the Developing

Bias/Roller Electrode.....................4-32

1. Outline......................................4-32

2. Control Timing..........................4-32

3. Developing Bias Control

Circuit .......................................4-35

4. Roller Electrode Bias Control

Circuit .......................................4-36

D. Detecting the Waste Toner Feeding

Screw (locking)..............................4-38

III. DISASSEMBLY AND ASSEMBLY......4-39

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A. Scanning Lamp Assembly.............4-39

1. Removing the Scanning Lamp.4-39

2. Removing the Thermal Fuse ....4-41

B. Standard White Plate ....................4-41

C. Pre-Exposure Lamp Unit...............4-43

1. Removing the Pre-Exposure

Lamp Unit.................................4-43

D. Blanking Exposure Lamp

Assembly.......................................4-44

1. Removing the Blanking

Exposure Lamp Assembly .......4-44

E. Photosensitive Drum .....................4-45

1. Removing the Drum Unit ..........4-45

2. Replacing the Drum Heater......4-47

3. Installing the Photosensitive

Drum.........................................4-47

F. Potential Sensor Assembly ...........4-48

1. Removing the Potential

Sensor Assembly .....................4-48

G. Primary Charging Assembly..........4-48

1. Removing the Primary

Charging Assembly..................4-48

H. Pre-Transfer Charging Assembly..4-49

1. Removing the Pre-Transfer

Charging Assembly..................4-49

I. Transfer/Separation Charging

Assembly.......................................4-49

1. Removing the Transfer/

Separation Charging

Assembly..................................4-49

2. Installing the Transfer/

Separation Charging

Assembly..................................4-51

J. Charging Wire ...............................4-53

1. Outline......................................4-53

2. Removing the Wire Cleaner of the Primary Charging

Assembly..................................4-53

3. Stringing the Charging Wires...4-53

4. Stringing the Grid Wire of the

Primary Charging Assembly.....4-56

5. Adjusting the Height of the

Charging Wire ..........................4-58

6. Cleaning the Primary Charging

Assembly Anti-Stray Sheet ......4-59

K. Developing Assembly....................4-60

1. Removing the Developing

Assembly from the Copier ........4-60

2. Removing the Blade Unit .........4-61

3. Installing the Blade...................4-61

4. Removing the Developing Cylinder and the Magnetic

Seal ..........................................4-62

5. Cleaning the Developing

Assembly Anti-Stray Sheet ......4-65

L. Hopper Assembly..........................4-66

1. Removing the Hopper

Assembly from the Copier ........4-66

M. Drum Cleaner................................4-67

1. Construction .............................4-67

2. Removing the Cleaning Blade..4-67

3. Installing the Cleaning Blade....4-68

4. Installing the Side Seal.............4-69

5. Cleaning the Cleaning Side

Scraper.....................................4-70

N. Separation Claw/Separation

Claw Drive Assembly ....................4-71

1. Removing from the Drum Unit .4-71

O. Waste Toner Feeding Assembly....4-72

CHAPTER 5 PICK-UP/FEEDING SYSTEM

I. PICK-UP/FEEDING SYSTEM............5-1

A. Outline ...........................................5-1

II. CASSETTE PICK-UP.........................5-4

A. Pick-Up Operation .........................5-4

1. Outline......................................5-5

2. Sequence of Pick-Up

Operations................................5-5

B. Cassette Lifter Operation ..............5-6

C. Identifying the Size of Copy

Paper in the Cassette....................5-8

1. Outline......................................5-8

2. Identifying the Size of Copy

Paper........................................5-8

3. Markings on the Width Guide

Rail ...........................................5-10

4. Paper Size ................................5-11

5. Registering Paper Width Basic

Value.........................................5-12

III.

FRONT PAPER DECK ASSEMBLY

A. Outline ...........................................5-13

1. Pick-Up Operation....................5-14

2. Sequence of Pick-Up

Operations................................5-15

B. Lifter Operation..............................5-16

1. Operation..................................5-16

2. Deck Limit Detection ................5-18

C. Detecting the Presence/Absence

of Paper in the Deck......................5-19

1. Detecting the Presence/ Absence of Paper in the Deck..5-19

2. Detecting the Size of the Deck..5-19

D. High-Speed Pick-Up......................5-19

IV. MULTIFEEDER...................................5-20

A. Pick-Up Operation .........................5-20

B. Identifying the Size of Paper in

the Multifeeder...............................5-21

......5-13

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C. Sequence of Pick-Up Operations

(multifeeder) ..................................5-22

V. CONTROLLING THE

REGISTRATION CLUTCH .................5-23

VI. MAKING TWO-SIDED/OVERLAY

COPIES..............................................5-24

A. Making Two-Sided/Overlay

Copies (1st side) ...........................5-24

1. Sequence of Operations (two-sided/overlay copies;

1st side) ....................................5-25

B. Making Two-Sided Copies

(2nd side) ......................................5-26

1. Sequence of Operations (two-sided copying; 2nd side) ..5-27

C. Making Overlay Copies

(2nd side) ......................................5-28

1. Outline......................................5-28

2. Outline of Operation.................5-29

3. Sequence of Operations

(overlay copying; 2nd side)......5-31

D. Reversal Delivery ..........................5-32

1. Sequence of Reversal

Delivery Operations ..................5-33

E. Switching the Paper Size for Two-

Sided/Overlay/Reversal Delivery

Copies ...........................................5-34

1. Movement of the Paper Size

Guide........................................5-34

2. Movement of the Paper Jogging Plate and the Trailing

Edge Guide Plate.....................5-35

3. Detecting the Presence/

Absence of Copy Paper...........5-36

F. Re-Pick Up from the Holding

Tray................................................5-37

G. Skipping Operation........................5-38

1. Outline......................................5-38

2. Outline of Operations ...............5-39

3. Skipping Operation (odd

number of originals) .................5-41

4. Skipping Operation (odd

number of originals) .................5-42

5. Reversal Delivery.....................5-45

VII. DETECTING JAMS............................5-46

A. Outline ...........................................5-46

1. Registration Roller Delay Jam..5-49

2. Registration Roller Stationary

Jam...........................................5-49

3. Pick-Up Vertical Path Feeding

0/1 Delay Jam ..........................5-50

4. Pick-Up Vertical Path Feeding

0/1 Stationary Jam ...................5-50

5. Pick-Up Vertical Path Feeding

2 through 4 Delay Jam.............5-51

6. Pick-Up Vertical Path Feeding

2 through 4 Stationary Jam......5-51

7. Fixing Assembly Outlet Delay

Jam...........................................5-52

8. Fixing Assembly Outlet

Stationary Jam .........................5-52

9. External Delivery Delay Jam....5-53

10.External Delivery Stationary

Jam...........................................5-53

11.Internal Delivery Delay Jam .....5-54

12.Internal Delivery Stationary

Jam...........................................5-54

13.Holding Tray Inlet Delay Jam...5-55

14.Holding Tray Inlet Stationary

Jam...........................................5-55

15.Holding Tray Re-Pick Up Delay

Jam...........................................5-56

16.Holding Tray Registration

Delay Jam ................................5-56

17.Holding Tray Registration

Stationary Jam .........................5-57

18.Holding Tray Feeding 1/2

Delay Jam ................................5-57

19.Holding Tray Feeding 1/2

Stationary Jam .........................5-58

20.Left Deck Pick-Up Delay Jam ..5-58

21.Left Deck Pick-Up Stationary

Jam...........................................5-59

22.Fixing Separation Claw

Assembly Stationary Jam.........5-59

VIII. DISASSEMBLY AND ASSEMBLY......5-60

A. Multifeeder Assembly ....................5-61

1. Removing the Multifeeder

Assembly..................................5-61

2. Removing the Pick-Up Roller...5-61

3. Installing the Pick-Up Roller.....5-62

4. Removing the Separation

Roller........................................5-63

5. Removing the Feeding Roller...5-65

6. Removing the Multifeeder

Paper Sensor ...........................5-66

7. Attaching the Side Guide Timing Belt in the Multifeeder

Assembly..................................5-68

8. Installing the Feeding Roller of

the Multifeeder..........................5-69

9. Adjusting the Pressure of the Pick-Up/Feeding Roller of the

Multifeeder................................5-69

10.Position of the Pick-Up Roller Releasing Solenoid of the

Multifeeder................................5-70

B. Front Paper Deck Assembly .........5-71

1. Removing the Paper Deck

Assembly from the Copier ........5-71

2. Removing the Lifter Cable........5-72

3. Changing the Deck Paper Size. .5-77

4. Adjusting the Deck

Registration ..............................5-79

C. Right Deck Pick-Up Assembly

(cassette holder)............................5-80

1. Removing the Pick-Up

Assembly from the Copier ........5-80

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2. Removing the Pick-Up Roller...5-80

3. Removing the Feeding Roller...5-82

4. Removing the Separation

Roller........................................5-82

5. Adjusting the Pressure of the

Separation Roller......................5-84

6. Orientation of the Separation

Roller........................................5-85

7. Orientation of the Feeding Roller of the Cassette/Deck

Pick-Up Assembly....................5-86

8. Positioning the Pick-Up Roller Releasing Solenoid of the

Deck .........................................5-86

9. Positioning of the Pick-Up Roller Releasing Solenoid of the

Cassette ...................................5-87

10.Adjusting the Registration of

the Cassette.............................5-87

D. Left Deck Pick-Up Assembly.........5-88

1. Removing the Pick-Up

Assembly from the Copier ........5-88

2. Removing the Pick-Up Roller...5-88

3. Removing the Feeding Roller...5-90

4. Removing the Separation

Roller........................................5-90

5. Orientation of the Feeding Roller Assembly of the Left

Deck Pick-Up Assembly...........5-91

E. Pick-Up Vertical Path Roller

Assembly.......................................5-92

1. Removing the Pick-Up Vertical

Path Roller Assembly...............5-92

F. Registration Feeding Assembly .....5-93

1. Construction .............................5-93

2. Removing the Registration

Feeding Assembly ....................5-93

3. Removing the Registration

Roller (upper rubber roller) .......5-94

G. Feeding Assembly.........................5-96

1. Construction .............................5-96

2. Removing the Fixing/Feeding

Unit...........................................5-96

3. Removing the Feeding Belt ......5-97

H. Holding Tray Assembly..................5-101

1. Construction .............................5-101

2. Removing the Holding Tray

from the Copier ........................5-102

3. Removing the Holding Tray

Re-Pick Up Assembly ..............5-102

4. Removing the Holding Tray

Registration Paper Sensor.......5-103

5. Removing the Re-Pick Up

Roller........................................5-104

6. Removing the Holding Tray

Driver PCB ...............................5-104

7. Removing the Holding Tray Y

Motor ........................................5-105

8. Removing the Y Motor Home

Position Sensor........................5-107

9. Removing the Holding Tray

Inlet Assembly..........................5-107

10.Removing the Feeding Roller/Separation Belt

Assembly..................................5-109

11.Removing the Feeding Roller...5-110

12.Removing the Separation Belt

Assembly..................................5-111

13.Adjusting the Pressure of the Separation Roller of the

Holding Tray.............................5-111

14.Positioning the Holding Tray Paper Deflecting Plate Drive

Solenoid ...................................5-112

15.Removing the Side Guide

Plate Assembly.........................5-112

16.Removing the Holding Tray X

Motor ........................................5-113

17.Removing the Holding Tray

Re-Circulating Motor ................5-113

18.Removing the Holding Tray

Paper Jogging Solenoid...........5-114

19.Installing the Holding Tray Paper Jogging Guide Plate

Assembly..................................5-116

20.Installing the Holding Tray Assembly Side Guide Plate

Assembly..................................5-116

21.Attaching the Timing Belt of the Holding Tray Assembly

Paper Jogging Guide Plate......5-117

22.Positioning the Holding Tray

Paper Jogging Solenoid...........5-117

I. Holding Tray Feeding Assembly ...5-118

1. Removing the Holding Tray Feeding Assembly from the

Copier.......................................5-118

2. Removing the Sensor from the Holding Tray Feeding

Assembly..................................5-119

CHAPTER 6 FIXING SYSTEM

I. OUTLINE OF OPERATIONS..............6-1

A. Outline ...........................................6-1

B. Fixing Drive Assembly...................6-3

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C. Controlling the Fixing Temperature..6-5 D. Reciprocating Mechanism for

the Main Thermistor (TH1)............6-10

E. Reciprocating Mechanism for

the Upper Separation Claw...........6-11

F. SSR Error Detection Circuit for

the Fixing Heater...........................6-12

G. Locking Operation (fixing/feeding

unit)................................................6-14

H. Error Detection Circuit...................6-15

1. Outline......................................6-15

2. Scanning Lamp Error

Activation Detection Circuit ......6-15

3. Fixing Heater Error Activation

Detection Circuit.......................6-16

4. Motor Error Rotation

Detection Circuit.......................6-17

II. DISASSEMBLY AND ASSEMBLY......6-18

A. Fixing Assembly ............................6-19

1. Construction .............................6-19

2. Locking Mechanism..................6-19

3. Removing the Fixing Cleaning

Belt ...........................................6-20

4. Installing the Fixing Cleaning

Belt ...........................................6-22

5. Removing the Upper Fixing

Unit...........................................6-23

6. Removing the Fixing Heater.....6-25

7. Installing the Fixing Heater.......6-27

8. Removing the Fixing Upper

Roller........................................6-27

9. Installing the Upper Fixing

Roller........................................6-29

10.Removing the Thermal Switch..6-30

11.Removing the Main Thermistor

(TH1) ........................................6-30

12.Removing the Lower

Separation Claw Assembly ......6-31

13.Removing the Lower Roller......6-32

14.Removing the Upper

Separation Claw.......................6-32

15.Adjusting the Nip (tightening

the pressure adjusting nut).......6-33

16.Adjusting the Fixing Clutch.......6-34

17.Removing the Sub Thermistor

(TH2) ........................................6-35

B. Delivery Assembly.........................6-36

1. Construction .............................6-36

2. Removing the Delivery Upper Guide (fixing/delivery

assembly).................................6-36

3. Removing the Fixing/Feeding

Assembly Locking Assembly....6-37

4. Removing the External

Delivery Roller..........................6-37

5. Removing the External Delivery Paper Sensor and the Internal

Delivery Paper Sensor .............6-39

6. Removing the Fixing Assembly Outlet Paper Sensor

Assembly..................................6-39

7. Removing the Internal Delivery

Assembly Roller .......................6-40

CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS

I. CONTROL PANEL .............................7-1

A. Outline ...........................................7-1

B. Operation.......................................7-1

1. Data Communication ................7-1

2. LCD Processing .......................7-2

3. Automatic Control of LCD

Contrast....................................7-4

4. Touch Switch Inputs.................7-5

II. FANS..................................................7-6

III. POWER SUPPLY...............................7-9

A. Outline of Power Supply................7-9

B. Power Supply Circuit.....................7-10

C. Date/Time Display Power Supply..7-12

IV. DISASSEMBLY AND ASSEMBLY......7-13

A. External Covers.............................7-14

1. Removing the Front Door .........7-15

2. Removing the Inside Upper

Cover........................................7-16

3. Removing the Fixing/Feeding

Unit Front Cover.......................7-17

4. Removing the Rear Cover........7-17

5. Sliding Out the Hopper

Assembly..................................7-18

6. Removing the Process Unit......7-18

7. Installing the Process Unit........7-21

B. Control Panel.................................7-22

1. Removing the Control Panel

from the Copier ........................7-22

2. Removing the Control Panel

PCB..........................................7-25

3. Removing the Touch Panel......7-26

4. Removing the Control Panel

Controller (CPU) PCB ..............7-27

C. Door Switch Assembly ..................7-28

1. Removing the Front Door

Switch Assembly......................7-28

2. Removing the Multifeeder

Door Switch Assembly .............7-28

3. Installing the Drum Heater

Switch.......................................7-29

D. Fan Unit.........................................7-30

1. Removing the Scanner

Cooling Fan..............................7-30

2. Removing the Exhaust Fan ......7-30

3. Removing the Fixing Heat

Exhaust Fan.............................7-31

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4. Removing the Developing

Fan ...........................................7-31

5. Removing the Cleaner Fan......7-32

6. Removing the Feeding Fan ......7-33

E. Removing the Counter Assembly..7-33

F. Main Motor Assembly....................7-34

1. Removing the Main Motor........7-34

G. Fixing/Waste Toner Drive

Assembly.......................................7-35

1. Construction .............................7-35

2. Removing the Waste Toner

Bottle ........................................7-35

3. Removing the Fixing/Waste

Toner Drive Assembly..............7-35

H. Main Drive Assembly (drum/

developing)....................................7-38

1. Construction .............................7-38

2. Removing .................................7-38

I. Vertical Path Drive Assembly........7-40

1. Construction .............................7-40

2. Removing .................................7-40

J. Pick-Up Drive Assembly................7-42

1. Construction .............................7-42

2. Removing .................................7-43

K. Duplexing Drive (1) Assembly.......7-44

1. Construction .............................7-44

2. Removing .................................7-45

L. Lifter Drive Assembly ....................7-46

1. Construction .............................7-46

2. Removing .................................7-46

M. Cassette Pick-Up Drive

Assembly.......................................7-48

1. Construction .............................7-48

2. Removing .................................7-48

N. Attaching the Drive Belt.................7-50

O. DC Controller PCB ........................7-51

1. Removing the DC Controller

PCB..........................................7-51

2. Points to Note When Replacing

the DC Controller PCB.............7-51

P. DC Power Supply Assembly.........7-52

1. Removing the DC Power

Supply Assembly ......................7-52

Q. High-Voltage Transformer

Assembly.......................................7-53

1. Remove the High-Voltage

Transformer Assembly.............7-53

R. Power Supply Inlet Assembly........7-54

CHAPTER 8 PAPER DECK-A1

I. SIDE PAPER DECK...........................8-1

A. Inputs to and Outputs from the

Side Deck Driver ...........................8-1

1. Inputs to the Side Deck Driver

(1/2)..........................................8-1

2. Inputs to the Side Deck Driver

(2/2)..........................................8-2

3. Outputs from the Side Deck

Driver (1/1) ...............................8-3

B. Pick-Up..........................................8-4

1. Outline......................................8-4

2. Pick-Up Operation....................8-4

3. Sequence of Operations (deck

pick-up).....................................8-6

C. Detection of Paper for the Deck....8-7

1. Detecting the Presence/

Absence of Paper.....................8-7

2. Changing the Paper Size for

the Deck...................................8-7

D. Deck Lifter .....................................8-8

1. Lifter Operation.........................8-8

2. Detecting the Level of the Stack in the Deck

(compartment)..........................8-10

E. Opening/Closing the Deck

(compartment)...............................8-11

1. Opening/Closing the Deck .......8-11

2. Sequence of Operations (deck

opening/closing) .......................8-12

F. Controlling the Deck Motor............8-13

1. Controlling the Deck Main

Motor (M101) ............................8-13

2. Controlling the Deck Lifter

Motor (M102) ............................8-15

II. DETECTING JAMS............................8-17

A. Outline ...........................................8-17

1. When copy paper is present at any of the sensors at power-on, end of wait-up, or during

standby.....................................8-18

2. Deck Pick-Up/Vertical Path

Delay Jam ................................8-18

3. Deck Pick-Up/Vertical Path

Stationary Jam .........................8-18

III. DISASSEMBLY AND ASSEMBLY......8-19

A. External Covers.............................8-20

1. Removing the Front Cover.......8-21

2. Removing the Vertical Path

Cover (rear)..............................8-24

3. Removing the Right Cover.......8-25

4. Removing the Upper Cover......8-26

B. Paper Deck....................................8-28

1. Removing the Deck from the

Copier.......................................8-28

2. Removing the Compartment ....8-30

3. Changing the Deck Paper

Size ..........................................8-32

4. Adjusting the Deck Registration ..8-33

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5. Positioning the Roll ..................8-34

C. Drive System.................................8-35

1. Removing the Deck Pick-Up

Clutch (CL102).........................8-35

2. Removing the Deck Vertical

Path Clutch (CL101).................8-35

3. Removing the Deck Main

Motor (M101) ............................8-36

4. Removing the Deck Lifter

Motor (M102) ............................8-37

5. Removing the Lifter Cable

(deck front)...............................8-38

6. Removing the Lifter Cable

(deck rear)................................8-40

7. Routing the Lifter Cable ...........8-43

D. Feeding System ............................8-44

1. Removing the Deck Pick-Up

Unit...........................................8-44

2. Removing the Deck Pick-Up

Roller........................................8-45

CHAPTER 9 INSTALLATION

3. Orientation of the Deck

Pick-Up Roller ..........................8-45

4. Removing the Deck Feeding

Roller........................................8-46

5. Orientation of the Deck

Feeding Roller..........................8-46

6. Removing the Deck Separation

Roller........................................8-47

7. Adjusting the Deck Separation

Roller Pressure.........................8-48

8. Positioning the Deck Pick-Up Roller Releasing Solenoid

(SL101).....................................8-48

E. Electrical System...........................8-49

1. Removing the Side Deck

Driver PCB ...............................8-49

2. Removing the OPEN Switch

PCB..........................................8-49

I. SELECTING THE SITE......................9-1

II. UNPACKING AND INSTALLING........9-4

A. Unpacking ......................................9-5

B. Installing the Scanner....................9-7

C. Installing the Fixing Assembly.......9-8

D. Installing the AP Kit and the

Charging Assemblies ....................9-10

E. Installing the Copy Tray.................9-16

1. Replacing the Delivery Gear....9-16

2. Replacing the Delivery Roller

Leaf Spring...............................9-17

F. Checking the Developing

Assembly.......................................9-18

G. Installing the Pick-Up Assembly....9-20

H. Supplying Toner.............................9-22

CHAPTER 10 MAINTENANCE AND SERVICING

I. PERIODICALLY REPLACED

PARTS..............................................10-1

II. CONSUMABLES AND DURABLES .10-2

A. Copier..........................................10-2

B. Paper Deck-A1............................10-3

I. Connecting the PDF Connector ....9-26

J. Image/Function Checks and

User Mode.....................................9-27

III. RELOCATING THE MACHINE...........9-31

IV. INSTALLING THE CONTROL

CARD V..............................................9-32

V. INSTALLING THE COPY DATA

CONTROLLER-A1 .............................9-40

A. Setting the Board ...........................9-40

B. Installing to the Copier ..................9-44

C. Checking the Operation.................9-46

VI. INSTALLING THE REMOTE

DIAGNOSTIC DEVICE II....................9-56

A. Installation to the Copier ...............9-56

III. SCHEDULED SERVICING TABLE ..10-4 IV. SCHEDULED SERVICING CHART.10-6

A. Copier..........................................10-6

B. Paper Deck-A1............................10-8

xii

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CHAPTER 11 TROUBLESHOOTING

I. MAINTENANCE AND INSPECTION.11-3

A. Image Adjustment Basic

Procedure....................................11-3

B. Points to Note for Scheduled

Servicing......................................11-4

II. STANDARDS/ADJUSTMENTS........11-5

A. Image Adjustment .......................11-5

1. Adjusting the Image Leading

Edge Margin...........................11-5

2. Adjusting the Image Leading Edge Non-Image Width

(registration)...........................11-5

3. Adjusting the Left/Right Registration (left/right front

deck paper deck, cassette)....11-6

3-1. Adjusting the Left/Right

Registration (paper deck-A1) ..11-7

4. Adjusting the Left/Right Registration (holding tray position; 2nd side of two-

sided/overlay copies) .............11-8

5. Adjusting the Left/Right

Margin ....................................11-8

6. Executing AE Automatic

Adjustment .............................11-9

7. Adjusting the AE Slope..........11-10

B. Exposure System........................11-11

1. Adjusting the Scanner Home

Position...................................11-11

2. Routing the Scanner Drive

Cable......................................11-12

3. Orientation of the Heat

Absorbing Glass.....................11-13

4. Adjusting the Tension of the

Scanning Lamp Cable ............11-13

5. Adjusting the Position of the

Mirror......................................11-14

6. Cleaning the Mirror (No. 5

mirror) .....................................11-15

7. Routing the Light-Blocking

Belt.........................................11-15

8. Routing the Lens X Direction

Drive Belt................................11-16

9. Adjusting the Position of the Scanner Locking Solenoid

(SL1).......................................11-16

C. Image Formation System............11-17

1. Grid Wire of the Primary

Charging Assembly................11-17

2. Adjusting the Height of the

Charging Wire ........................11-19

3. Adjusting the Position of the

Blanking Exposure Lamp.......11-20

4. Position of the Roller

Electrode................................11-21

5. Adjusting the Position of the Cleaning Assembly Side

Seal........................................11-21

6. Cleaning the Cleaner Side

Scraper ...................................11-22

D. Pick-Up/Feeding System.............11-24

1. Orientation of the Cassette/ Front Paper Deck Pick-Up

Roller......................................11-24

2. Orientation of the Cassette/ Front Paper Deck Separation

Roller......................................11-25

3. Orientation of the Feeding Roller (cassette/ front paper

deck).......................................11-25

4. Orientation of the Multifeeder

Pick-Up Roller ........................11-26

4-1. Orientation of the Paper

Deck-A1 Pick-Up Roller .........11-26

5. Rotation of the Multifeeder

Feeding Roller........................11-27

5-1. Orientation of the Paper

Deck-A1 Feeding Roller.........11-27

6. Adjusting the Separation Roller Pressure of the

Cassette/Front Paper Deck ....11-28

7. Adjusting the Separation Roller Pressure of the

Holding Tray...........................11-29

8. Pick-Up/Feeding Roller of

the Multifeeder .......................11-29

9. Adjusting the Position of the Pick-Up Roller Releasing

Solenoid (cassette) ................11-30

9-1. Adjusting the Position of the

Pick-Up Roller Releasing

Solenoid (front paper deck)....11-31

9-2. Adjusting the Position of the

Pick-Up Roller Releasing

Solenoid (paper deck-A1) ......11-31

10.Adjusting the Position of the Pick-Up Roller Releasing

Solenoid (multifeeder)............11-32

11.Routing the Timing Belt of the Side Guide (multifeeder

assembly)...............................11-33

12.Adjusting the Position of the Solenoid (delivery paper

deflecting plate solenoid) .......11-33

13.Adjusting the Position of the Holding Tray Paper Deflecting

Plate Drive Solenoid...............11-34

14.Adjusting the Position of the Holding Tray Assembly Side

Guide Plate ............................11-34

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xiii

15.Adjusting the Position of the

]4]

; cassette/

multifeeder) ............................11-63

III. IMAGE FAULTS................................11-64

A. Initial Checks...............................11-64

1. Checking the Site

Environment...........................11-64

2. Checking the Originals ...........11-64

3. Checking the Copyboard Cover, Copyboard Glass, and

Standard White Plate.............11-65

4. Checking the Charging

Assemblies.............................11-65

5. Checking the Developing

Assembly ................................11-65

6. Checking the Paper................11-65

7. Checking the Periodically

Replaced Parts.......................11-65

8. Others.....................................11-65

B. Sample Image Faults ..................11-68

C. Troubleshooting Image Faults.....11-69

1. The copy is too light

(halftone only). .......................11-69

2. The copy is too light (including

solid black).............................11-70

3. The copy is too light

(entire face)............................11-70

4. The copy has an uneven

density (darker at front)..........11-72

5. The copy has an uneven

density (lighter at front)..........11-72

6. The copy is foggy. (overall)....11-73

7. The copy has vertical

fogging....................................11-74

8. The copy has black lines

(vertical, fuzzy, thick)..............11-74

9. The copy has black lines

(vertical, fine)..........................11-75

10.The copy has white spots

(vertical)..................................11-76

11.The copy has white lines

(vertical)..................................11-76

12.The copy has white spots

(horizontal). ............................11-78

13.The copy has a soiled back. ..11-79

14.The copy has fixing faults. .....11-80

15., 16., 17. The copy has displaced leading edge

registration.............................. 11-81

18.The copy is blurred and

fuzzy. ......................................11-82

19.The copy has horizontal

fogging....................................11-83

20.The copy has poor

sharpness. ..............................11-83

21.The copy is blank...................11-84

22.The copy is solid black...........11-84

IV. TROUBLESHOOTING

MALFUNCTIONS.............................11-85

A. Troubleshooting Malfunctions .....11-85

1. E000.......................................11-85

2. E001.......................................11-86

3. E002.......................................11-87

4. E003.......................................11-87

5. E004.......................................11-87

6. E005.......................................11-88

7. E006.......................................11-88

8. E010.......................................11-88

9. E013.......................................11-89

10.E015.......................................11-90

11.E020.......................................11-91

12.E030 (The total copy counter

fails to turn on.)......................11-92

13.E031 (The option counter

has an open circuit.)...............11-92

14.E043 (paper deck-A1)............11-93

15.E050.......................................11-94

16.E051.......................................11-94

17.E202 (The keys on the

control panel are locked.).......11-95

18.E203.......................................11-95

19.E204 (The keys on the

control panel are locked.).......11-95

20.E210 (fault in lens X direction

drive system)..........................11-96

Holding Tray Paper Jogging

Plate.......................................11-35

16.Adjusting the Timing Belt of the Holding Tray Paper

Jogging Guide Plate ...............11-35

17.Adjusting the Position of the Holding Tray Paper Jogging

Plate Solenoid........................11-36

18.Drive Belt ................................11-36

E. Fixing System..............................11-38

1. Points to Note When Installing

the Fixing Heater ....................11-38

2. Adjusting the Position of the Fixing Assembly Inlet

Guide ......................................11-38

3. Adjusting the Lower Roller

Pressure (nip).........................11-40

4. Adjusting the Fixing Clutch ....11-41

F. Electrical System.........................11-42

1. When Replacing the DC

Controller PCB.......................11-42

2. Checking the Surface

Potential Control System........11-42

3. Checking the Potential

System ...................................11-47

4. Potential Control System

Conversion Table ...................11-49

5. Checking the Environment

Sensor....................................11-54

6. Checking the

Photointerrupters....................11-55

7. Registering the Paper Width Basic Value (

xiv

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21.E212 (fault in lens Y direction

drive system)..........................11-96

22.E213.......................................11-96

23.E240.......................................11-96

24.E243.......................................11-97

25.E710/E711..............................11-97

26.E712.......................................11-97

27.E713.......................................11-97

28.E800.......................................11-98

29.E802.......................................11-98

30.AC power is absent................11-99

31.DC power supply is absent....11-100

32.Pick-up fails. (deck pick-up; front paper deck + cassette)..11-101

33.The deck lifter fails to move up. (front paper deck + cassette)..11-102

34.Pick-up fails. (cassette

pick-up)...................................11-103

35.The lifter fails to move up.

(cassette)................................11-105

36.Pick-up fails. (multifeeder)......11-106

37.The vertical path roller fails to

rotate......................................11-107

38.The registration roller fails to

rotate......................................11-107

39.The scanner fails to move

forward. ..................................11-108

40.The scanner fails to move in

reverse. ..................................11-108

41.The blanking exposure lamp

fails to turn on. .......................11-109

42.The pre-exposure lamp fails

to turn on................................11-109

43.The scanning lamp fails to

turn on....................................11-110

44.The hopper motor (M10) fails

to operate...............................11-111

45.The hopper motor (M11) fails

to operate...............................11-112

46.The drum heater fails to

operate...................................11-112

47.The lens fails to move............11-113

48.The Add Toner indicator fails

to turn on................................11-114

49.The Add Toner indicator fails

to turn off................................11-114

50.The Set Control Card

message fails to turn off. ........11-115

51.The Set Control Card

message fails to turn off. ........11-115

52.Jams occur at the fixing

assembly inlet. .......................11-115

53.The Add Paper message

fails to turn off.........................11-115

54.The fixing heater fails to

operate...................................11-116

55.Pick-up fails. (paper deck-A1)..11-117

56.The deck lifter fails to move

up. (paper deck-A1) ...............11-118

V. TROUBLESHOOTING FEEDING

PROBLEMS......................................11-119

A. Copy Paper Jams........................11-119

1. Pick-Up Assembly ..................11-120

2. Separation/Feeding

Assembly................................11-121

3. Fixing/Delivery Assembly .......11-122

4. Fixing/Delivery Assembly

(reversed delivery) .................11-122

5. Cleaning Assembly ................11-123

6. Holding Tray Assembly (twosided/overlay copying, 1st

side)........................................11-123

7. Holding Tray Assembly

(re-pick up).............................11-124

8. Holding Tray Assembly

(overlay, re-pick up)................11-124

9. Holding Tray Feeding

Assembly ................................11-125

B. Feeding Faults.............................11-126

1. Double Feeding......................11-126

2. Wrinkles..................................11-126

VI. ARRANGEMENT AND FUNCTIONS

OF ELECTRICAL PARTS ................11-127

A. Sensors .......................................11-128

B. Switches and Solenoids ..............11-132

C. Motors and Fans .........................11-136

D. Clutches ......................................11-138

E. Lamps, Heaters, and

Photosensors ..............................11-140

F. PCBs...........................................11-142

G. Paper Deck-A1 ............................11-144

1. Sensors and Switches............11-144

2. Motors, Clutches, Solenoids,

and PCBs...............................11-146

H. Variable Resistors (VR),

Light-Emitting Diodes (LED),

and Check Pins by PCB..............11-148

1. DC Controller PCB .................11-148

2. AC Driver PCB.......................11-151

3. DC Power Supply PCB..........11-151

4. Control CPU PCB...................11-152

5. Holding Tray Driver PCB........11-153

6. Potential Measurement PCB..11-154

7. HVT1 PCB..............................11-155

8. HVT2 PCB..............................11-156

9. Inverter PCB...........................11-156

10.Lamp Regulator PCB.............11-157

11.Counter PCB..........................11-157

12.Side Deck Driver

(paper deck-A1) .....................11-158

VII. SERVICE MODE..............................11-159

A. Outline .........................................11-159

B. Using Service Mode ....................11-160

C. Using Adjustment Mode and

Options Mode..............................11-160

D. Display Mode ( )...............11-162

E. I/O Display Mode ( ) .........11-179

F. Adjustment Mode ( ).........11-215

]

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G. Function Mode ( ) .............11-233

H. Options Mode ( )...............11-244

I. Counter Mode ( ) ..............11-253

]

VIII. SELF DIAGNOSIS ...........................11-259

APPENDIX

A. Copier..........................................11-259

B. RDF-D1 .......................................11-264

C. Sorter...........................................11-266

A. GENERAL TIMING CHART ..........A-1

SIGNALS AND ABBREVIATIONS

...A-3

1. Signals......................................A-3

2. Abbreviations............................A-4

C. GENERAL CIRCUIT DIAGRAM ....A-5

not available

D. PAPER DECK-A1 GENERAL

CIRCUIT DIAGRAM......................A-7

E. SPECIAL TOOLS LIST .................A-9

F. SOLVENTS AND OILS..................A-10

xvi

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CHAPTER 1

GENERAL DESCRIPTION

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

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

A. Copier............................................1-2

B. Paper Deck-A1 ..............................1-9

III. NAMES OF PARTS............................1-10

A. External View.................................1-10

B. Cross Section ................................1-12

IV. OPERATING THE MACHINE .............1-13

A. Control Panel.................................1-13

B. Extended Modes ...........................1-14

C. User Mode.....................................1-15

V. ROUTINE MAINTENANCE BY THE

USER..................................................1-19

VI. POINTS TO NOTE (BY THE USER)..1-19

VII. IMAGE FORMATION ..........................1-20

A. Outline ...........................................1-20

This chapter introduces the copier’s features and specifications, shows how to operate the copier, and

explains how copies are made.

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CHAPTER 1 GENERAL DESCRIPTION

I. FEATURES

1. It offers 50-sheet copying (A4, horizontal) and 60-sheet copying (A4, horizontal; 1 original) using the RDF’s stream reading.

2. It has a reduced rate of jamming, thanks to new pick-up and feeding mechanisms.

3 It promises to produce high-quality copies for a long time, which is a prerequisite for

all high-speed copiers. The use of Canon’s proprietary A-Si (amorphous silicon) photosensitive drum ensures durability, while its single-component toner projection developing mechanism leads to enhanced image reproduction.

4. It comes with a large-size liquid crystal display for ease of viewing.

5. When fitted with a side paper deck (accessory), it will hold as many as 7,550 sheets (5,550 sheets if NP6250).

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1-1

CHAPTER 1 GENERAL DESCRIPTION

II. SPECIFICATIONS

A. Copier

1. Type

Body Copyboard Light source Lens Photosensitive

medium

2. Mechanisms

Copying Charging Exposure Copy density

adjustment Development Pick-up Auto

Manual

Console Fixed Halogen lamp (70 V, 265 W) Zoom Amorphous silicon (80 mm dia.)

Indirect electrostatographic Corona Slit (moving light source) Automatic or manual

Dry (toner projection)

Front cassette (2) Front paper deck (2)

Multifeeder (5.5 mm deep, 50 sheets of 80 g/m

) Transfer Separation Cleaning Fixing

1-2

Corona Corona (static) Blade Heating roller (790 W + 410 W; 120V), (1200W; 220/240V)

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3. Performance

×431 mm (11"×17", max.) STMT (min.) Two-sided A: A3 (max.), A5 horizontal (min.) Inch: 279.4×431.8 mm (11"×17", max.), STMT horizontal (min.)

Reproduction ratio

CHAPTER 1 GENERAL DESCRIPTION

Original type Maximum original size

Direct Reduce I Reduce II Reduce III Reduce IV Enlarge I Enlarge II Enlarge III Enlarge IV

Zoom Wait time First copy Continuous copying Copying size

Sheet, book, 3-D object (2 kg max.) A3 1:1 1:0.500 1:0.707 1:0.816 1:0.865 1:2.000 1:1.414 1:1.224 1:1.154 1:0.490 to 2.040 (1% increments) 5 min min. (at 20°C)

3.0 sec (A4, non-AE, right deck pick-up) 999 copies max. One-sided

A: A3 (max.), A6 vertical (min.; postcard) Inch: 279.4

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1-3

CHAPTER 1 GENERAL DESCRIPTION

Cassette pick-up

Front paper deck pick-up

Multifeeder pick-up

Copy paper type

Automatic

Twosided copying

Multifeeder

Automatic

Overlay copying

Multifeeder

• Plain paper (64 to 90 g/m2) A3, B4, A4, B5, A4R, B5R, 11" × 17", LGL, LTR, LTR-R, A5, A5R, STMT, STMTR, Foolscap, GLTR, GLTR-R, KLGL, K-LGL-R, OFFICIO, E-OFFICIO, A-OFFICIO, B-OFFICIO, A-LTR, ALTR-R, A-LGL

• Tracing paper* (SM-1) A3, B4, A4, B5, A4R, B5R

• Colored paper (Canon-recommended) B4, A4

• Plain paper (64 to 90 g/m

)

A4, B5, LTR

• Colored paper (Canon-recommended) A4

• Plain paper (64 to 90 g/m

) A3, B4, A4, B5, A4, B5R, 11" × 17", LGL, LTR, LTR-R, STMT-R*, postcard

• Tracing paper* (SM-1) A3, B4, A4, B5, A4R, B5R

• Transparency (Canon-recommended) A4, LTR

• Colored paper* (Canon-recommended) B4, A4

• Label sheet (Canon-recommended) A4, LTR

• Thick paper* (91 to 200 g/m

• Plain paper* (64 to 90 g/m

)

) A3, B4, A4, B5, A4R, B5R, 11" × 17", LGL, LTR, LTR-R, A5, STMT

• Colored paper (Canon-recommended) B4, A4

• Plain paper* (64 to 90 g/m

) A3, B4, A4, B5, A4R, B5R, 11" × 17", LGL, LTR, LTR-R, STMT-R, A5, STMT

• Colored paper* (Canon-recommended) B4, A4

• Plain paper* (64 to 90 g/m

) A3, B4, A4, B5, A4R, B5R, 11" × 17", LGL, LTR, LTR-R, A5, STMT

• Color paper* (Canon-recommended) B4, A4

Plain paper* (64 to 90 g/m

) A3, B4, A4, B5, A4R, B5R, 11" × 17", LGL, LTR, LTR-R, STMT-R, A5, STMT

• Colored paper* (Canon-recommended) B4, A4

*May be used, but may not feed properly.

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CHAPTER 1 GENERAL DESCRIPTION

Tray

Non-image width

Auto clear

Auto power-off

Claw Cassette

Front paper deck

Copy tray Leading edge

Trailing edge

Left/right (1st side) Left/right (2nd side)

None 55 mm deep

(about 500 sheets each of 80 g/m

paper)

162 mm deep

(about 1500 sheets each of 80 g/m 250 sheets (approx.; A3, of 80 g/m

)

For Direct, 4.5 ±1.5 mm (for non-default, overlay, two-sided, 4.5 ±1.5 mm)

2.0 ±1.5 mm (non-default, overlay, two-sided, 2.0 ±1.0 mm); if with RDF-D1, 2.0 ±1.8 mm

2.75 ±2.5 mm; if with RDF-D1, 2.75 ±2.75 mm

2.75 ±2.5 mm; if with RDF-D1, 2.75 ±2.75 mm Provided (2 min standard; may be varied

between 0 and 1 hr in 10-min increments; may be varied between 1 and 2 hr in 1-hr increments)

Provided (1 hr standard; may be varied between 0 and 1 hr in 10-min increments; may be varied between 1 and 2 hr in 1-hr increments)

Accessory

• Sorter-G1 • Control Card-V

• Paper Deck-A1 • Copy Data Controller-A1

• Stapler Sorter-E2

• Remote Diagnostic Device II

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CHAPTER 1 GENERAL DESCRIPTION

4. Others

Temperature 7.5° to 32.5°C/45.5°C to 90.5°F

Operating environment

Power supply

Power consumption

Noise

Humidity 5% to 80% RH Atmospheric

pressure

810.6 to 1013.3 hPa (0.8 to 1.0 atm) NP6350 NP6251

120V NGT XXXXX – 220/ 240V PCV XXXXX – 220/ 240V (UK) – DJB XXXXX 220/ 240V (CA) RBK XXXXX – 220/ 240V (FRN) – BJB XXXXX 220/ 240V (GER) – AJB XXXXX 220/ 240V (AMS) – UCJ XXXXX, CJB XXXXX

Maximum 1.5 kW or less Standby 0.3 kWh (approx.; reference only)

Continuous copying

1.2 kWh (approx.; reference only)

Copying 71 dB or less (sound power level by ISO) Standby Satisfies standard of 50 dB or less

Ozone

0.05 ppm or less (avr over 8 hr)

Dimensions

Weight

Consumables

Width 643mm/25.3 in Depth 725mm/28.5 in Height 1169mm/46.0 in

210 kg/ 462.8lb (approx.; w/ RDF) Copy paper Keep wrapped to protect against humidity. Toner Avoid direct sunshine; keep at 40°C, 85% or under.

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CHAPTER 1 GENERAL DESCRIPTION

(50%)

(70%)

III

(81%)

(86%)

(200%)

(141%)

III

(122%)

(115%)

Copies/min

25 50 33 50 39 44

43 36

41 50

38 32

50 24

25 33 46

33 25

Copy paper

A3 A4 B4

B5 A4R B5R

A5R A4R

B5R

A5 A4R

Size A3(297 × 420mm) A4(210 × 297mm) B4(257 × 364mm) B5(182 × 257mm)

A4R(297 × 210mm) B5R(257 × 182mm)

A3 Õ 5R

A3 Õ A4R

B4 Õ B5R

A4 Õ A5

B4 Õ A4R

A3 Õ B4 A4 Õ B5

A5R Õ A3

A4R Õ A3 B5R Õ B4

A5 Õ A4

A4R Õ B4

B4 Õ A3 B5 Õ A4

Reduce

Ratio

Direct

Enlarge

Table 1-201 Copying Speed (copier only)

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1-7

CHAPTER 1 GENERAL DESCRIPTION

Reduce

Enlarge

Ratio

Direct

(50%)

(64.7%)

III

(73.3%)

(200%)

(129.4%)

Size LTR

11" × 17"

LGL

LTRR

STMT/STMTR

11" × 17" Õ STMTR

11" × 17" Õ LTRR

11" × 15" Õ LTRR

STMR Õ 11" × 17"

LTRR Õ 11" × 17"

Copy paper

LTR

11" × 17"

LGL

LTRR

STMT/STMTR

STMTR

LTRR

11" × 17"

Copies/min

50 25 34 41 50

III

(121.4%)

LGL Õ 11" × 17"

11" × 17"

Table 1-202 Copying Speed (copier only)

Specifications subject to change without notice.

1-8

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B. Paper Deck-A1

CHAPTER 1 GENERAL DESCRIPTION

Item Pick-up Paper compartment Copy paper

Paper volume Serial number Paper size alteration

Dimensions Weight Power supply Operating environment

Temperature Humidity

Specifications Clawless (retard) Side tray

•Plain paper (64 to 90 g/m

)

A4, B5, LTR

•Colored paper (Canon-recommended)

385 mm high (stack; about 3,500 sheets of 80 g/m

paper) ZHY XXXXX (A/B), ZHZ XXXXX (Inch) By size guide plate (in steps), in service mode (*5*)

329 (W) × 583 (D) × 680 (H) mm/13.0 (W) × 23.0 (D) × 26.8 (H) in

33.5 kg/73.8 lb DC from copier Same as copier

Specifications subject to change without notice.

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CHAPTER 1 GENERAL DESCRIPTION

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III. NAMES OF PARTS

A. External View

Figure 1-301

!0!1

q Copy tray w RDF e Toner supply mouth r Original tray/Instructions tray t Power switch y Multifeeder u Upper right door

i Lower right door o Cassette 4 !0 Cassette 3 !1 Right deck !2 Left deck !3 Front door

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CHAPTER 1 GENERAL DESCRIPTION

!4 Fixing assembly knob !5 Fixing feeding assembly !6 Fixing/feeding assembly lever !7 Toner hopper

!8 Holding tray feeding assembly knob !9 Holding tray feeding assembly @0 Holding tray assembly @1 Holding tray knob

Figure 1-302

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1-11

+ 782 hidden pages

Canon NP6350, NP6251 Service Manual

INTRODUCTION

CONTENTS

CHAPTER 1

I. FEATURES

II. SPECIFICATIONS

III. NAMES OF PARTS