Canon NP6218 Service Manual

0 (0)

SERVICE MANUAL

REVISION 0

MAY 1997

FY8-13EX-000

CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

IMPORTANT

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

SPECIFICATIONS AND OTHER INFORMATION CONTAINED HEREIN MAY 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 DEPT. 1

OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIV.

CANON INC.

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

CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

INTRODUCTION

This Service Manual contains the bsic facts and figures about the plain paper copier NP6218, and is compiled to serve as a handy reference for servicing the machine in the field.

The NP6218 is designed to enable fully automated copying work and may be configured with the following accessories:

1.Cassette Feeding Module-B2*

2.Cassette Feeding Module-A2*

3.Control Card IV N

4.ADF-E1

5.Staple Sorter B2/D1

6.MS-B1

7.Remote Diagnostic Device II

This manual is limited to the descriptions of the NP6218, Cassette Feeding Module-

B2/Cassette Feeding Module-A2.

* May not be available in some areas but discussed in this manual.

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 Installation introduces requirements for the site of installation, and shows how the copier may be installed using step-by-step instructions.

CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

Chapter 9 Maintenance and Servicing provides tables of periodically replaced parts and consumables/durables and scheduled servicing charts.

Chapter 10 Troubleshooting provides tables of maintenance/inspection, standards/adjustments, and problem identification (image fault/malfunction).

Appendix contains a general timing chart and general circuit diagrams.

In addition to the above chapters, this SERVICE MANUAL contains a set of appendixes consisting of a general timing chart and general circuit diagrams.

A separate document entitled SERVICE HANDBOOK is also available for troubleshooting problems in the copier.

The following rules apply throughout this volume:

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 will result 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 contents of this manual may be updated from time to time to reflect improvements rendered to the copier; a Service Information bulletin will be issued as necessary to cover major changes.

All service persons are expected to be thoroughly familiar with the information contained in this manual, SERVICE HANDBOOK, and Service Information bulletins, for quick response to the user’s needs.

CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

System Configuration

The NP6218 may be configured with the following systems options:

ADF-E1

Sends originals one by one from a stack set on its tray

Control Card IV N

Allows the user to control copy volume.

Stapler Sorter B2/D1, MS-B1

Automatically sorts or (page collation) or groups up to 10 sets of copies; with the sorting function,

the sorted copies may automatically be stapled. (Not applicable to MS-B1.)

Cassette Feeding Module-B2

Adds an additional cassette.

Cassette Feeding Module-A2

Adds additional two cassettes.

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COPYRIGHT © 1997 CANON INC.	CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)			iii

1. GENERAL DESCRIPTION

CANON NP6218 REV.0 MAR. 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

CHAPTER 1 GENERAL DESCRIPTION

I.	FEATURES .........................................			1-1
II.	SPECIFICATIONS ..............................			1-2
	A. Copier ............................................			1-2
	1.	Type ..........................................		1-2
	2.	System .....................................		1-2
	3.	Features ...................................		1-3
	4.	Others.......................................		1-4
	B. Cassette Feeding Module-B2/
	Cassette Feeding Module-A2 ........			1-5
III.	NAMES OF PARTS ............................			1-6
	A. Exterior View .................................			1-6
	B. Cross Section ................................			1-7
	1.	Body .........................................		1-7
	2.	Cassette Feeding Module-A2...		1-8
IV.	OPERATION .......................................			1-9
	A. Control Panel.................................			1-9
	B. Operation Mode.............................			1-10
	C. Making Two-Sided/Overlay
	Copies (manual) ............................			1-11
	D. User Mode .....................................			1-12
	1.	Outline ......................................		1-12
	2.	Common Operations ................		1-13
	3.	Changing the Auto Clear
		Time (	) ..............................	1-13

4.	Changing the Auto Power-Off
	Time (	) ..............................		1-13
5.	Zoom Fine-Adjustment (		)..	1-14

6.Turning On and Off the Auto Cassette Change Mechanism

(

) .......................................

1-15

7.Turning On/Off the Auto Sort/ Non-Sort (with ADF and sorter

installed—option) (	) ..........	1-16
8. Cleaning the Feeder (with ADF
installed—option) (	) ..........	1-16

9.Selecting the Density Adjustment Method for

	Standard Mode (	) .............		1-17
	10.Initializing User Mode (		)....	1-17
	11.Quick Guide to User Mode.......			1-18
	E. Handling the Toner Bottle ..............			1-19
V.	WARNINGS AND ACTIONS ..............			1-19
VI.	ROUTINE MAINTENANCE BY THE
	USER..................................................			1-19
VII. IMAGE FORMATION ..........................				1-20
	A. Outline ...........................................			1-20

CHAPTER 2 BASIC OPERATION

I. BASIC CONSTRUCTION ...................		2-1
A. Functional Construction.................		2-1
B. Outline of the Electrical Circuitry...		2-2
C. Basic Sequence of Operations
(2 copies continuous, AE) .............		2-3
D. Main Motor Control Circuit.............		2-4
1.	Outline ......................................	2-4
2.	Mechanism ...............................	2-4
E. Inputs to the DC Controller PCB ...		2-5
1.	Inputs to the DC Controller
	PCB (1/3)..................................	2-5
2.	Inputs to the DC Controller
	PCB (2/3)..................................	2-6
3.	Inputs to the DC Controller
	PCB (3/3)..................................	2-7
F. Outputs from the DC Controller
PCB ...............................................		2-8
1.	Outputs from the DC
	Controller PCB (1/3) .................	2-8

2.	Outputs from the DC
	Controller PCB (2/3) .................	2-9
3.	Outputs from the DC
	Controller PCB (3/3) .................	2-10
G. Inputs to and Outputs from the
1-Cassette Unit Driver PCB...........		2-11
1.	Inputs to and Outputs from
	the 1-Cassette Unit Driver
	PCB (1/1)..................................	2-11
H. Inputs to and Outputs from the
2-Cassette Unit Driver PCB...........		2-12
1.	Inputs to and Outputs from
	the 2-Cassette Unit Driver
	PCB (1/2)..................................	2-12

2.Inputs to and Outputs from the 2-Cassette Unit Driver

PCB (2/2)..................................

2-13

CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

CHAPTER 3 EXPOSURE SYSTEM

I.	BASIC OPERATION ...........................		3-1	IV. DISASSEMBLY AND ASSEMBLY ......		3-9
	A. Varying the Reproduction Ratio ....		3-1	A. Scanner Drive Assembly ...............		3-9
II.	LENS DRIVE SYSTEM ......................		3-1	1.	Detaching the Scanner Drive
	A. Outline ...........................................		3-1		Motor ........................................	3-9
	B. Lens Motor Drive Circuit................		3-3	2.	Detaching the Scanner Cable ..	3-10
	1.	Keeping the Lens Motor		3.	Assembling the Mirror
		Stationary .................................	3-3		Position Tool .............................	3-12
	2.	Driving the Lens Motor .............	3-3	4.	Routing the Scanner Cable ......	3-13
	C. Basic Sequence of Operations			5.	Adjusting the Position of the
	(lens drive system; non-Direct) ......		3-4		Mirrors (optical length of No.
III.	SCANNING DRIVE SYSTEM.............		3-5		1, 2, and 3 mirrors)...................	3-16
	A. Driving the Scanner.......................		3-5	6.	Cleaning the Scanner No. 6
	1.	Outline ......................................	3-5		Mirror ........................................	3-17
	2.	Relationship between the		B. Lens Drive Assembly.....................		3-18
		Scanner Sensor and Signals....	3-6	1.	Detaching the Lens Drive
	3.	Basic Sequence of			Motor ........................................	3-18
		Operations (scanner)................	3-6	2.	Routing the Lens Cable............	3-20
	4.	Driving the Scanner Motor .......	3-7	3.	Adjusting the Position of the
	5.	Scanner Operations in Page			Change Solenoid......................	3-21
		Separation Mode (non-AE,
		page separation, A4, 2 copies)..	3-8

CHAPTER 4 IMAGE FORMATION SYSTEM

I.	PROCESSES .....................................		4-1	3.	Controlling the Primary
	A. Outline ...........................................		4-1		Charging Roller Bias to a
	B. Basic Sequence of Operations				Constant Voltage ......................	4-11
	(image formation system)..............		4-3	4.	Switching the Primary Charging
	C. Controlling the Scanning Lamp .....		4-4		Roller Bias Application Voltage
	1.	Outline ......................................	4-4		Level .........................................	4-11
	2.	Turning On and Off the		5.	Application Voltage Level
		Scanning Lamp ........................	4-5		(APVC) for the Primary
	3.	Pre-Heating Control			Charging Roller and Scanning
		(scanning lamp)........................	4-5		Lamp On Voltage Level
	4.	Sequence of Operations			Automatic Correction ................	4-12
		(scanning lamp pre-heating		E. Controlling the Transfer Roller Bias...		4-13
		control; AE, A4, continuous,		1.	Outline ......................................	4-13
		2 copies)...................................	4-5	2.	Turning On and Off the
	5.	Controlling the Intensity of the			Transfer Roller Bias ..................	4-15
		Scanning Lamp (FL1)...............	4-7	3.	Controlling the Transfer Bias
	6.	Controlling the Fluorescent			to a Constant Voltage ...............	4-15
		Lamp Heater.............................	4-8	4.	Controlling the Transfer Bias
	7.	Fluorescent Lamp Automatic ...	4-9		Voltage Level Correction
	8.	Fluorescent Lamp Protection			(ATVC control) ..........................	4-15
		Mechanism ...............................	4-9	5.	Current Limiter Circuit
	D. Controlling the Primary Charging				(transfer bias) ...........................	4-15
	Roller Bias .....................................		4-10	6.	Current Limiter Circuit
	1.	Outline ......................................	4-10		(cleaning bias) ..........................	4-15
	2.	Turning On and Off the Primary		F. Controlling the Static Eliminator
		Charging Roller Bias ................	4-11	Bias................................................		4-16

CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

1.	Outline ......................................	4-16	III. DISASSEMBLY AND ASSEMBLY ......		4-30
2.	Switching the Static Eliminator		A. Illumination Assembly....................		4-30
	Bias Voltage Level ....................	4-17	1.	Detaching the Scanning
3.	Ensuring Proper Separation of			Lamp/Fluorescent Lamp
	Thin Paper ................................	4-17		Heater.......................................	4-30
G. Controlling Blank Exposure ...........		4-18	2.	Points to Note When Attaching
1.	Outline ......................................	4-18		the Fluorescent Lamp
2.	Blanking (Whiting) of Non-			Heater/Scanning Lamp.............	4-32
	Image Areas for Reduction.......	4-19	3.	Detaching the Blank Exposure
3.	Blanking (Whiting) Out the			Assembly ..................................	4-34
	Leading/Trailing Edges and		4.	Detaching the Blank Exposure
	between Copies........................	4-19		Lamp ........................................	4-35
H. Controlling the Primary Corona			5.	Detaching the Blank Shutter
Roller Cleaning Mechanism ..........		4-20		Solenoid ...................................	4-36
1.	Outline ......................................	4-20	6.	Positioning the Blank Shutter
2.	Primary Charging Roller			Solenoid ...................................	4-37
	Cleaning Operation ..................	4-20	7.	Routing the Blanking Cable......	4-38
I. Releasing the Transfer Roller ........		4-21	8.	Positioning the Left/Right
1.	Outline ......................................	4-21		Margin ......................................	4-38
II. DEVELOPING ASSEMBLY AND			B. Drum Unit ......................................		4-39
CLEANING ASSEMBLY .....................		4-22	1. Detaching the Drum Unit..........		4-39
A. Outline ...........................................		4-22	2.	Cleaning ...................................	4-40
B. Controlling the Toner Level			C. Primary Corona Assembly.............		4-41
Detection .......................................		4-23	1.	Detaching the Primary Corona
C. Controlling the Development				Assembly ..................................	4-41
Bias................................................		4-25	2.	Cleaning the Cleaning Pad and
1.	Outline ......................................	4-25		the Primary Corona Roller .......	4-42
2.	Turning On and Off the DC		3.	Positioning the Solenoid for the
	Component of the Developing			Primary Charging Roller...........	4-43
	Bias and Controlling the		D. Transfer Charging Assembly .........		4-44
	Voltage to a Constant Level .....	4-25	1.	Detaching the Transfer Roller ...	4-44
3.	Turning On and Off the AC		2.	Attaching the Drum Heater.......	4-44
	Component of the		E. Developing System........................		4-47
	Development Bias ....................	4-26	1.	Removing the Developing
4.	Controlling the Voltage Level			Assembly ..................................	4-47
	of the DC Component of the		2.	Removing the Blade
	Development Bias ....................	4-26		Assembly ..................................	4-47
D. Automatic Control of Copy			3.	Removing the Developing
Density...........................................		4-27		Cylinder Side Seal....................	4-48
1.	Outline ......................................	4-27	4.	Installing the Side Seal and
2.	Control Method.........................	4-27		the Blade Assembly..................	4-51
3.	AE Adjustment..........................	4-29

CHAPTER 5 PICK-UP/FEEDING SYSTEM

I.	PICK-UP/FEEDING SYSTEM ............	5-1
	A. Outline ...........................................	5-1
II.	PICK-UP OPERATION (COPIER) ......	5-3
	A. Outline ...........................................	5-3
	B. Sequence of Operations (pick-up/
	feeding assembly; A4, 2 copies)....	5-4

III.PICK-UP FROM THE CASSETTE

FEEDING MODULE-A2......................	5-5
A. Pick-Up Operation .........................	5-5
B. Sequence of Operations
(cassette 2; A4, 2 copies) ..............	5-6

IV. MULTIFEEDER...................................	5-7
A. Outline ...........................................	5-7
B. Identifying the Size of Paper on
the Multifeeder...............................	5-8
C. Sequence of Operations
(multifeeder; A4, 2 copies).............	5-9

V.IDENTIFYING THE CASSETTE

SIZE....................................................	5-10
VI. IDENTIFYING JAMS ..........................	5-12
A. Pre-Registration Delay Jam...........	5-12
B. Pre-Registration Timing Jam .........	5-13

CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

vii

C. Pre-Registration Stationary Jam ...		5-13
D. Separation Delay Jam ...................		5-14
E. Separation Stationary Jam ............		5-14
F. Delivery Delay Jam........................		5-15
G. Delivery Stationary Jam ................		5-15
VII. DISASSEMBLY AND ASSEMBLY ......		5-16
A. Pick-Up Assembly .........................		5-16
1.	Detaching the Pick-Up Roller
	Unit ...........................................	5-16
2.	Detaching the Pick-Up Roller ...	5-19
3.	Points to Note When Attaching
	the Pick-Up Roller ....................	5-20

4.Detaching the Pick-Up Clutch...5-20

5.Detaching the Separation Pad ..5-21

6.Adjusting the Left/Right

	Registration ..............................	5-22
B. Multifeeder Assembly ....................		5-23
1.	Detaching the Multifeeder
	Assembly ..................................	5-23
2.	Detaching the Multifeeder
	Pick-Up Roller Unit ...................	5-24
3.	Detaching the Multifeeder
	Pick-Up Roller ..........................	5-25
4.	Points to Keep Note When
	Attaching the Multifeeder
	Pick-Up Roller ..........................	5-26
5.	Detaching the Separation Pad ..	5-26

6.	Detaching the Multifeeder
	Drive Unit..................................	5-27
7.	Detaching the Multifeeder
	Clutch .......................................	5-28

8.Positioning the Multifeeder Assembly (paper guide plate

	cam) .........................................	5-29
9.	Adjusting the Left/Right
	Registration ..............................	5-30
10.Points to Note When Attaching
	the Multifeeder Assembly Rack
	Plate .........................................	5-30
C. Registration Roller Assembly ........		5-31
1.	Detaching the Registration
	Clutch .......................................	5-31
2.	Detaching the Upper
	Registration Roller....................	5-31
3.	Detaching the Lower
	Registration Roller....................	5-33
D. Feeding Assembly .........................		5-34
1.	Detaching the Feeding Belt ......	5-34
E. Cassette Unit .................................		5-36
1.	Detaching the Copier from
	the Cassette Unit......................	5-36
2.	Detaching/Attaching the
	Pick-Up Roller ..........................	5-36
3.	Detaching the Pick-Up Clutch ..	5-36

CHAPTER 6 FIXING SYSTEM

I.	BASIC OPERATIONS.........................		6-1
	A. Outline ...........................................		6-1
	B. Controlling the Fixing Heater
	Temperature ..................................		6-3
	C. Controlling the Supply Power for
	the Fixing Heater ...........................		6-5
	D. Detecting Overheating at the End
	of the Fixing Heater .......................		6-6
	E. Protection Mechanism ...................		6-6
	1.	Thermistor (TH1, TH2) .............	6-6
	2.	Thermal Fuse (FU1).................	6-6
	3.	Heater ON Detection Circuit
		(230V model only) ....................	6-6
	F. Correcting Displacement of the
	Fixing Film .....................................		6-7
	1.	Outline ......................................	6-7
	2.	Controlling the Fixing Film
		Motor ........................................	6-10
II.	DISASSEMBLY AND ASSEMBLY ......		6-11
	A. Fixing Assembly ............................		6-11
	1.	Construction1 ...........................	6-11
	2.	Detaching the Upper Fixing
		Unit ...........................................	6-12

3.Detaching the Fixing Film, Tension Roller, Drive Roller, Fixing Cleaning Brush, and

	Fixing Heater Unit ....................	6-13
4.	Points to Note When Attaching
	the Fixing Film .........................	6-20
5.	Points to Note When Attaching
	the Heater Connector ...............	6-20
6.	Points to Note When Replacing
	the Fixing Upper Unit ...............	6-21
7.	Adjusting the Fixing Film Drive
	Roller Pressure.........................	6-21
8.	Detaching the Lower Fixing
	Unit ...........................................	6-23

9.Detaching the Separation Claw/Lower Fixing Claw and

Fixing Cleaning Roller ..............	6-24
10.Adjusting the Lower Fixing
Roller Nip..................................	6-25
B. Delivery Assembly .........................	6-27

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CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS

I. POWER SUPPLY ...............................	7-1
A. Outline ...........................................	7-1
B. Power Supply Circuit Assembly.....	7-2
C. Detecting Errors in the Power
Supply PCB ...................................	7-4

1.Communication Error between DC Controller PCB and Composite Power Supply PCB ..7-4

2.Error in the High-Voltage

Output Data ..............................

7-4

3.Low-Voltage Output Data Error..7-4

4.Overcurrent in the Low-voltage

Power Supply ...........................	7-4
D. Protection Mechanisms for the
Power Supply Circuit .....................	7-5
II. DISASSEMBLY AND ASSEMBLY ......	7-6
A. External Covers .............................	7-6
B. Control Panel.................................	7-9
1. Detaching the Control Panel ....	7-9
C. Fans...............................................	7-10
1. Detaching the Exhaust Fan ......	7-10

D.Main Motor/Main Drive Assembly..7-11

1.Detaching the Main Motor Unit..7-11

2.Detaching the Main Drive

Assembly ..................................

7-11

3.	Routing the Drive Belt ..............	7-13
E. Cassette unit .................................		7-14
1.	Detaching the Pick-Up Drive
	Unit ...........................................	7-14

2.Detaching the Cassette Motor..7-15

3.Detaching the Cassette Driver

	PCB ..........................................	7-16
F. DC Controller PCB ........................		7-17
1.	Detaching the DC Controller
	PCB ..........................................	7-17
2.	Points to Note When
	Replacing the DC Controller
	PCB ..........................................	7-17
G. Composite Power Supply PCB......		7-18
1.	Detaching the Composite
	Power Supply PCB ...................	7-18

2.Points to Note When Handling the Composite Power Supply

	PCB ..........................................	7-20
H. AE Sensor PCB.............................		7-21
1.	Points to Note When
	Replacing the AE Sensor .........	7-21
I. Intensity Sensor PCB ....................		7-21
1.	Points to Note When Replacing
	the Intensity Sensor .................	7-21

CHAPTER 8 INSTALLATION

I. SELECTING THE SITE ......................

8-1

II.UNPACKING AND INSTALLING

	THE COPIER......................................	8-2
	A. Unpacking and Removing Fixings ..	8-2
	B. Turning On the Copier ...................	8-5
	C. Checking the Images and
	Operations .....................................	8-8
	D. Attaching the Drum Unit ................	8-9
	E. Changing the Cassette Size..........	8-10
III.	RELOCATING THE COPIER..............	8-13
IV.	REPLACING THE DRUM UNIT..........	8-14

V.INSTALLING THE CONTROL CARD

	IV N.....................................................	8-17
VI.	CASSETTE HEATER KIT 5
	INSTALLATION PROCEDURE ...........	8-19
	A. Unpacking......................................	8-19
	B. Installation (to a Cassette
	Feeding Module-A2/B2).................	8-20
VII. INSTALLING THE REMOTE
	DIAGNOSTIC DEVICE II....................	8-26
	A. Unpacking......................................	8-26
	B. Installation to the Copier ...............	8-27

CHAPTER 9 MAINTENANCE AND SERVICING

I.	PERIODICALLY REPLACED			B. Cassette Feeding Module-B2/
	PARTS ................................................	9-1		Cassette Feeding Module-A2 ........	9-3
	A. Periodically Replaced Parts...........	9-1	III.	PERIODICAL SERVICING .................	9-4
II.	DURABLES ........................................	9-2	IV.	SERVICING CHART...........................	9-5
	A. Copier ............................................	9-2	V.	NOTES ON DRUM KIT ......................	9-6

CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

CHAPTER 10 TROUBLESHOOTING

I.MAINTENANCE AND INSPECTION..10-3 A. Image Adjustment Basic

Procedure....................................	10-3
B. Periodical Servicing.....................	10-4

II.STANDARDS AND ADJUSTMENTS..10-5

A. Image Adjustment .......................

10-5

1.Adjusting the Image Leading Edge Margin ([3], No.305;

registration ON timing) ...........

10-5

2.Adjusting the Leading Edge Non-Image Width ([3], No. 306; blank shutter ON

timing).....................................

10-6

3.Adjusting the Image Trailling Edge Non-Image Width ([3], No.309; blank shutter

	timing).....................................	10-7
4.	Adjusting the Left/Right
	Registration ............................	10-8
5.	Adjusting the Left/Right Margin
	(No.311; left/right margin).......	10-9
6.	Adjusting the Scanning Lamp
	Intensity ..................................	10-10
7.	AE Adjustment .......................	10-11
B. Exposure System ........................		10-15
1.	Routing the Scanner Drive
	Cable ......................................	10-15

2.Adjusting the Mirror Position optical distance between No.1 mirror and No.2/No.3 mirror) ..10-16

3.Adjusting the Scanner Cable

Tension ...................................	10-17
4. Assembling the Mirror
Positioning Tool ......................	10-17

5.Points to Note When Attaching the Fluorescent Lamp Heater/

	Scanning Lamp ......................	10-18
6.	Positioning the Change
	Solenoid .................................	10-20
C. Image Formation System ............		10-21
1.	Positioning the Blank Shutter
	Solenoid .................................	10-21
2.	Routing the Blank Shutter
	Cable ......................................	10-22
3.	Positioning the Solenoid for the
	Primary Charging Roller.........	10-22
4.	After Replacing the Drum
	Unit .........................................	10-23
5.	Attaching the Drum Heater ....	10-23
D. Pick-Up/Feeding System .............		10-25
1.	Orientation of the Pick-Up
	Roller ......................................	10-25
2.	Orientation of the Multifeeder
	Pick-up Roller .........................	10-25

3.	Positioning the paper Guide
	Plate Cam (multifeeder) .........	10-26
E. Fixing System..............................		10-27
1.	Points to Note when Attaching
	the Fixing Film........................	10-27
2.	Points to Note when Attaching
	the Heater Connector.............	10-27
3.	Adjusting the Fixing Film Drive
	Roller Pressure ......................	10-28
4.	Points to Note after Replacing
	the Fixing Upper Unit .............	10-29
5.	Adjusting the Nip ....................	10-30
6.	Routing the Drive Belt ............	10-31
7.	Storing the Fixing Heater
	Registance .............................	10-31
8.	Setting the Fixing Heater
	Temperature Control Value.....	10-32
F. Electrical......................................		10-35
1.	After Replacing the PCB ........	10-35
2.	Clearing the Back-Up RAM....	10-35
3.	Checking the
	Photointerrupters....................	10-36
4.	Adjusting the Multifeeder
	Paper width Sensor ................	10-43
5.	Setting the Paper Size for the
	Universal Cassette .................	10-44

III.TROUBLESHOOTING IMAGE

FAULTS.............................................		10-45
A. Initial Checks ...............................		10-45
1.	Site Environment ....................	10-45
2.	Checking the Originals ...........	10-45

3.Checking the Copyboard Cover and the Copyboard

	Glass ......................................	10-45
4.	Checking the Paper................	10-45
5.	Others.....................................	10-46
B. Samples of Image Faults.............		10-48
C. Troubleshooting Faulty Images....		10-49
1.	The copy is too light
	(half-tone only). ......................	10-49
2.	The copy is too light
	(black solid also).....................	10-50
3.	The copy is too light
	(overall, extremely). ................	10-50
4.	The copy has uneven density
	(front too dark)........................	10-52
5.	The copy has uneven density
	(front too light). .......................	10-52
6.	The copy is foggy (overall). ....	10-53
7.	The copy is foggy (vertical). ...	10-54
8.	The copy has black lines
	(vertical; thick fuzzy lines). .....	10-54
9.	The copy has black lines
	(vertical, fine)..........................	10-54

CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

10.The copy has white spot
	(vertical)..................................	10-55
11.The copy has white lines
	(vertical)..................................	10-55
12.The copy has white spots
	(horizontal). ............................	10-56
13.The back of the copy is
	soiled. .....................................	10-57
14.The copy has a fixing fault. ....		10-58
15.The leading edge of the copy
	is displaced. ...........................	10-58
16.The leading edge of the copy
	is displaced. ...........................	10-58
17.The leading edge of the copy
	is displaced. ...........................	10-58
18.The copy has a blurred
	image......................................	10-59
19.The copy is foggy
	(horizontal). ............................	10-60
20.The copy has poor
	sharpness...............................	10-61
21.The copy is blank. ..................		10-62
22.The copy is solid black. ..........		10-62
IV. TROUBLESHOOTING
MALFUNCTIONS .............................		10-63
A. Troubleshooting Malfunctions......		10-63
1.	E000 .......................................	10-63
2.	E001 .......................................	10-64
3.	E002, E003 ............................	10-64
4.	E004 .......................................	10-65
5.	E007 .......................................	10-65
6.	E010 .......................................	10-66
7.	E030 .......................................	10-66
8.	E064 .......................................	10-67
9. E202 (keys on control panel
	invalidated) .............................	10-67
10.E210 .......................................		10-68
11.E220 .......................................		10-68
12.E240 .......................................		10-68
13.E261 .......................................		10-69
14.E710, E711, E712, E717 .......		10-69
15.E803 .......................................		10-69
16.AC power supply is absent.....		10-70
17.DC power supply is absent. ...		10-71
18.The blank shutter fails to
	move.......................................	10-72
19.The photosensitive drum fails
	to rotate. .................................	10-72
20.The pick-up operation fails
	(from cassette). ......................	10-73
21.The pick-up operation from
	the multifeeder fails. ...............	10-73
22.The scanner fails to move
	forward/in reverse...................	10-74
23.The registration roller fails to
	rotate. .....................................	10-74
24.The scanning lamp fails to
	turn on. ...................................	10-75

25.The lens fails to move. ...........	10-75
26.The fixing heater fails to
operate. ..................................	10-76
27.The pre-exposure lamp fails
to turn on................................	10-76
28.The add paper indicator fails
to turn off. ...............................	10-76
29 The jam message fails to turn
off. ..........................................	10-77

V.TROUBLESHOOTING FEEDING

PROBLEMS.....................................		10-78
A. Jams (copy paper).......................		10-78
1.	Pick-Up Assembly ..................	10-79
2.	Separation/Feeding
	Assembly................................	10-80
3.	Fixing/Delivery Assembly .......	10-80
B. Feeding Faults.............................		10-81
1.	Double feeding .......................	10-81
2.	Wrinkling.................................	10-81
VI. ARRANGEMENT AND FUNCTIONS
OF THE ELECTRICAL PARTS.........		10-82
A. Sensors .......................................		10-82
B. Clutches, Solenoids, and
Switches ......................................		10-84
C. Motors, Heaters, and Lamps.......		10-86
D. PCBs ...........................................		10-88
E. Cassette Feeding Module-A2......		10-90
F. Variable Registors (VR) and
check Pins by PCB......................		10-92
1.	DC controller PCB..................	10-92
2.	Composite power supply
	PCB ........................................	10-93
VII. SERVICE MODE ..............................		10-94
A. Outline .........................................		10-94
B. Using Service Mode ....................		10-94
1.	Activating Service Mode.........	10-94
2.	Selecting a Service Mode ......	10-95
3.	Selecting Items.......................	10-95
4.	Using Adjustment Mode [3]
	and Specification Mode [5].....	10-95
5.	Using Operation/Inspection
	Mode [4] .................................	10-95
6.	Clearing Stored Error .............	10-95
7.	Recording on the Service
	Mode Label ............................	10-96
C. Control Display Mode [1].............		10-97
D. I/O Mode [2] ................................		10-99
E. Adjustment Mode [3] ...................		10-102
F. Operation/Inspection Mode [4] ....		10-105
G. Specification Settings Mode [5]...		10-107
H. Counter Mode [6] ........................		10-108
VIII. SELF DIAGNOSIS............................		10-109
A. Copier..........................................		10-109
B. Self Diagnosis (ADF)...................		10-113
C. Self Diagnosis (Sorter) ................		10-114

CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

APPENDIX

A.	GENERAL TIMING CHART................	A-1	D.	SPECIAL TOOLS................................	A-5
B.	SIGNALS AND ABBREVIATIONS......	A-2	E.	SOLVENTS/OILS................................	A-6
C.	GENERAL CIRCUIT DIAGRAM .........	A-3
	not available

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CHAPTER 1

GENERAL DESCRIPTION

This chapter introduces features and specifications, and explains how the machines are operated and copies are made.

I.	FEATURES .........................................	1-1
II.	SPECIFICATIONS ..............................	1-2
	A. Copier ............................................	1-2
	B. Cassette Feeding Module-B2/
	Cassette Feeding Module-A2 ........	1-5
III.	NAMES OF PARTS ............................	1-6
	A. Exterior View .................................	1-6
	B. Cross Section ................................	1-7
IV.	OPERATION .......................................	1-9
	A. Control Panel.................................	1-9

	B. Operation Mode.............................	1-10
	C. Making Two-Sided/Overlay
	Copies (manual) ............................	1-11
	D. User Mode .....................................	1-12
	E. Handling the Toner Bottle ..............	1-19
V.	WARNINGS AND ACTIONS...............	1-19
VI.	ROUTINE MAINTENANCE BY THE
	USER..................................................	1-19
VII. IMAGE FORMATION ..........................		1-20
	A. Outline ...........................................	1-20

CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)

CHAPTER 1 GENERAL DESCRIPTION

I. FEATURES

The copier becomes ready to make copies as soon as it is turned on. When fitted with options, it provides a maximum of four paper sources.

1.Multiple front loading and multifeeder for space saving.

•The cassette may be slid out to the front for paper supply work.

•With the adjustable cassette and the multifeeder, various types of paper may be used.

2.Office amenities and ecology.

•The copier is equipped with a heating mechanism, which makes the copier ready for copying work at power-on without wait time.

•The copier is designed compact, enabling effective use of office space.

•The use of roller charging has proved to reduce the generation of ozone significantly. (1/100 to 1/1000 compared to other Canon copiers)

•As the pick-up mechanism, center-reference is adopted in consideration of the use of recycled paper.

•A significant number of parts are made of plastic in an effort to promote recycling.

•The copier is designed as a clamshell type to facilitate clearing of jammed paper.

3.Dependable high image quality.

•The new HQ (high-quality) toner ensures faithful reproduction of solid black, text, and photos.

•In addition to Canon’s own single-component toner projection development method, the use of auto image control (AIC) ensures stable reproduction of images.

4.Practical basic features.

•As many as 18 copies (A4, horizontal) may be made per minute.

•Copies may be as large as A3/Ledger or as small as A5/STMT, accommodating postcards.

•The AE mechanism promises enhanced reproduction of newspapers or diazo originals.

•Using page separation mode, a book may be copied with its left and right pages processed separately.

•Copies may be made in zoom between 49% and 204%.

•The zoom fine-adjustment mechanism ensures better control for faithful reproduction of originals.

•The auto power-off mechanism helps further saving of energy.

•The interrupt mechanism enables cutting in on a continuous copying session.

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1-1

CHAPTER 1 GENERAL DESCRIPTION

II. SPECIFICATIONS

A. Copier

1. Type

Item	Description

Body	Desk top

Copyboard	Fixed

Light source	Fluorescent lamp

Lens	Zoom

Photosensitive	OPC (ø30)
medium

2. System

Item		Description

Copying		Indirect electrophotographic

Charging		Roller (direct charging)

Exposure		Slit (moving light source)

Copy density		Automatic (AE) or manual
adjustment

Development		Dry (toner projection)

Pick-up	Auto	1 cassette

	Manual	Multifeeder

Transfer		Roller

Separation		Curvature + static eliminator

Cleaning		Cleaning blade

Fixing		Fixing (by plane-shaped heater; 1100 W max.)

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CHAPTER 1 GENERAL DESCRIPTION

3. Features

	Item				Specification

Original type					Sheet, book, 3-D object (2 kg max.)

Maximum original					A3 (297 × 420 mm)/LDG (11" × 17")
size					Center reference

Reproduction ratio					Direct, 2R2E (Table 1-201)
					Zoom 49% to 204%

Wait time					0 sec

First copy					8.2 sec or less (11.6 sec or less at power-on; A4, Direct, non-AE,
					from cassette)

Continuous copying					100 (max.; upper limit may be varied in service mode)

Copying speed					See Table 1-202.

Copy size					Cassette: A3/11" × 17" to A5/STMT 3.94" × 5.88"
					Manual: A3/11" × 17" to postcard (vertical)

	Cassette				Plain paper (64 to 80 g/m2), tracing paper (SM1), colored paper,
paper					recycled paper (64 to 80 g/m2), ecology paper (80 g/m2)
paper	Manual				Plain paper (64 to 80 g/m2), tracing paper (SM1, GNT80), colored
	Manual
Copy					paper, recycled paper (64 to 80 g/m2), ecology paper (80 g/m2),
Copy					transparency, postcard, label sheet, thick paper (81 to 128 g/m2)

	Two-sided/			Manual	Plain paper (64 to 80 g/m2), colored paper, postcard, recycled paper
	overlay				(64 to 880 g/m2), ecology paper (80 g/m2)
Cassette					34 mm deep (approx.; about 250 sheets of 80 g/,m2 paper),
					clawless, front loading (center reference)

Multifeeder					5 mm high (max.; about 50 sheets of 80 g/m2), clawless (center
					reference)

Copy tray					100 sheets (approx.; A3 size, 80 g/m2)
Non-image		One-sided			2.0 ±1.0 mm (leading edge), 2.5 ±1.5 mm (left/right, trailing edge)
width
width			Multi manual		2.0 ±1.0 mm (leading edge), 3.5 ±1.5 mm (left/right, trailing edge)
			Multi manual

Auto clear					Available (2 min standard; may be varied between 1 to 9 min in 1-
					minute increments; may be disabled)

Auto power-off					Available (5 min standard; may be varied in user mode to 2, 5, 10,
					15, 30, 60, 120 min)

Option					Cassette Feeding Module-B2, Cassette Feeding Module-A2, Control
					Card IV N, Stapler Sorter B2/D1, MS-B1 ADF-E1

Caution:

1.Use Canon-recommended paper.

2.Remove curling before feeding for a second time.

3.Fan out the transparencies before setting them on the multifeeder to prevent adhesion.

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1-3

CHAPTER 1 GENERAL DESCRIPTION

4. Others

Item			Specifications

Operating environment	Temperature	7.5°C to 32.5°C/45.5°F to 90.5°F

	Humidity	5% RH to 85% RH

	Atmospheric	810.6 hPa to 1013.3 hPa (0.8 to 1 atm)
	pressure

Power supply		Serial numbers

	230 V (50Hz)	UCDXXXXX

Power consumption	Maximum	1.5 kW or less

	Standby	97.2 kJ per hr (27 wh average; reference only)

	Continuous	2088 kJ (580 wh average; reference only)

Noise	Copying	49.7 dB or less (1 m front)		Sound power level by
				ISO method
	Standby	—		ISO method
	Standby	—

Ozone (average over 8 hr)		0.01 ppm or less (average); 0.02 ppm or less (max.)

Dimensions	Width	585 mm/23.0 in

	Depth	622 mm/24.5 in

	Height	345 mm/13.6 in

Weight		48 kg (approx.)

Consumables	Copy paper	Keep wrapped to protect against humidity.

	Cartridge	Avoid direct rays of the sun; keep at 40°C/104°F,
		85% RH.


Reproduction ratio	DIRECT		1: 1 (±0.5%)

	REDUCE I		1: 0.500

	REDUCE II		1: 0.707

	ENLARGE I		1: 1.414

	ENLARGE II		1: 2.000

	ZOOM	49% to 204% (1% increments)

Table 1-201 Standard Reproduction Ratios

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CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)

CHAPTER 1 GENERAL DESCRIPTION

Reproduction ratio				Copy size	Copies/min

DIRECT	1: 1 (±0.5%)	A3	(297 × 420)		10

		A4	(210 × 297)		18

		A5	(148 × 210)		21

		A4R	(297 × 210)		14

		A5R	(210 × 148)		18

REDUCE	1: 0.500 (+1.0%)	A3	→	A5R	20

	1: 0.707 (+1.0%)	A3	→	A4R	12

		A4	→	A5	12

ENLARGE	1: 2.000 (+1.0%)	A5R	→	A3	11

	1: 1.414 (+1.0%)	A4R	→	A3	10

		A5	→	A4	19

Table 1-202 Copying Speed

Specifications subject to change without notice.

B. Cassette Feeding Module-B2/Cassette Feeding Module-A2

Copy paper	As per copier.

Cassette	As per copier.

Power supply	34 V DC, 24V, 5V (from copier)

Dimensions	Cassette Feeding Module-B2: 585W × 622D × 105H (mm) /23.0in x 24.5in x 8.3in
	Cassette Feeding Module-A2: 585W × 622D × 210H (mm) /23.0in x 24.5in x 4.1in

Weight	Cassette Feeding Module-B2: 9kg
	Cassette Feeding Module-A2:16kg

	Table 1-203

CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)

1-5

CHAPTER 1 GENERAL DESCRIPTION

III. NAMES OF PARTS

A. Exterior View

q Copyboard cover	t Cassette
w Power switch	y Front door
e Clip tray	u Control panel
r Multifeeder	i Copyboard glass
	Figure 1-301

q Open/close lever	r Heater switch
w Copy density correction knob	t Copy tray
e Static eliminator cleaner	y Static eliminator

Figure 1-302

1-6

CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)

CHAPTER 1 GENERAL DESCRIPTION

B. Cross Section

1. Body

q No. 3 mirror	!1Reflecting plate	@1Transfer roller
w No. 2 mirror	!2No. 6 mirror	@2Separation static eliminator
e No. 1 mirror	!3Developing cylinder	@3Photosensitive drum
r Scanning lamp	!4Developing assembly	@4Feeding assembly
t Copyboard glass	!5No. 5 mirror	@5Cassette
y Copyboard cover	!6No. 4 mirror	@6Fixing film
u Lens	!7Multifeeder tray	@7Film tension roller
i Exhaust fan	!8Multifeeder pick-up roller	@8Film pressure roller
o Pre-exposure lamp	!9Cassette pick-up roller	@9Film drive roller
!0Primary charging roller	@0Registration roller	#0Delivery roller
	Figure 1-303

CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)

1-7

CHAPTER 1 GENERAL DESCRIPTION

2. Cassette Feeding Module-A2

q Cassette 2	r Cassette 3 pick-up roller
w Cassette 3	t Drive roller
e Cassette 2 pick-up roller	y Feeding roller
	Figure 1-304

1-8

CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)

CHAPTER 1 GENERAL DESCRIPTION

IV. OPERATION

A. Control Panel

q Image Compose key	!2 Start key
w Page Separate key	!3 Auto Ratio key
e Warning indicator	!4 Zoom key
r Display	!5 Paper Select key
t % key	!6 Cassette/Jam indicator
y Reset key	!7 Direct key
u Keypad	!8 Reduce/Enlarge key
i Power switch	!9 Copy density key
o Interrupt key	@0 AE key
!0 Clear key	@1 Sorter key
!1 Stop key	@2 Sorter indicator

q w

e r

t y

Max 200%				1 2 3
A4	A3	A5	A4	Autom. Paper
	1:1			A3
A3	A4	A4	A5	A4	%
Min 50%				A4
Min 50%				A4 R
				A4 R
				A5	Autom. Zoom
				A5 R	Autom. Zoom
				A5 R
A	1:1				– Zoom +

1 2 3

4 5 6

7 8 9

C 0

@2 @1

@0!9!8!7

!6 !5 !4

!1 !0

Figure 1-401

CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)

1-9

CHAPTER 1 GENERAL DESCRIPTION

B. Operation Mode

Mode	Description	Remarks

Image Composition	Press to set/reset image composition mode.	Only when an ADF
mode		(accessory) is installed.

Page Separation	Press to set/reset page separation mode.
mode

Interrupt mode	Press to interrupt an ongoing copying
	session.

Auto Ratio mode	Press it to set/reset auto ratio mode.	Only when an ADF
		(accessory) is installed.

AE mode	Press to set/re-set AE mode or user mode.

Sort/staple	Press it to select/reset sort, staple sort, or	Only when an sorter
sort/group mode	group mode.	(accessory) is installed.

Table 1-401

1-10

CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)

CHAPTER 1 GENERAL DESCRIPTION

C. Making Two-Sided/Overlay Copies (manual)

You can make two-sided or overlay copies by manually feeding paper. You must, however, keep the following in mind when making such copies:

q Be sure to orient the paper the same way for both sides when turning it over. w Make sure that the paper has not absorbed moisture.

e Make sure that the paper has no curling.

r After copying on the first side, sufficiently cool the paper; then, correct any curling before feeding it for a second time.

t Use paper of 60 to 128 g/m2.

yCorrect any curling on postcards or thick paper (128 g/m2) before copying on the second side.

Figure 1-405

CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)

1-11

CHAPTER 1 GENERAL DESCRIPTION

D. User Mode

1. Outline

The copier provides user mode, which allows the user to change various settings or to make various adjustments on his/her own; see Table 1-402.

Menu No. Display	Function	Description	Default settings
1	Changing the auto	You may set the auto clear time	2 min
	clear time	between 1 and 9 min in 1-min
		increments. Setting it to ‘0’
		disables the function.
2	Changing the auto	You can set the auto power-off	5 min
	power-off time	time to either 2, 5, 10, 15, 30, 60,
		or 120 min.
3	Fine adjusting	You can correct a slight discrep-	± 0%
	(zoom)	ancy between original and copy
		sizes (direct); enlarge in X direc-
		tion and reduce in Y direction
		independent of each other.
5	Turning on/off	You may specify whether to	On
	auto sort/non-sort	evecute auto sort/non-sort.
	(with ADF* and
	sorter* installed)
	*Accessory
6	Cleaning the feeder	Use it to clean the pick-up
	(with ADF* installed)	assembly of the ADF.
	Option
9	Selecting a densi-	You can specify either AE or	AE
	ty adjustment	manual for density adjustment for
	method for	standard mode.
	standard mode
0	Initializing user	You can return settings changed
	mode	in user mode to initial settings.

Table 1-402

1-12

CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)

CHAPTER 1 GENERAL DESCRIPTION

2. Common Operations

a.Keys to Use in User Mode

•Clear Key

Use it to return to the previous step; or, use it to clear a setting entered by mistake when making mode settings.

•Start Key

Use it to accept a selected item when making user mode settings.

•AE Key

Use it to return to copy mode when making user mode settings.

b.Operation

1) Hold down the AE key for about 4 sec or more.
• This will turn on the display, indicating “	”.

2)Enter the menu number of each function using the keypad.

3)Press the Start key.

•The current setting of the respective function appears.

4)Enter a new setting using the appropriate key.

5)Press the start key.

•The copy count/ratio indictor turns on to indicate the user mode being changed.

•The setting of the respective user mode is changed.

6)Press the AE key.

•The copier returns to standby state.

3. Changing the Auto Clear Time (		)
1) Hold down the AE key for 4 sec or more.
• “	” appears on the display.

2)Press the Start key.

•The display indicates the current setting (if initial, indicates ‘1-2’).

3)Enter a desired setting using the keypad.

•The display indicates the new setting (if 5 min, indicates ‘1-5’).

4) Press the Start key. “

”

5)Press the AE key.

• The copier returns to standby state.

4.	Changing the Auto Power-Off Time (		)
1)	Hold down the AE key for 4 sec or more.
	• “	” appears on the display.
2)	Enter ‘2’ using the keypad so that the display indicates “			”.

3)Press the Start key.

• The display indicates the current setting (if initial, indicates ‘2-2’).

4)Enter a desired setting using the keypad.

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CHAPTER 1 GENERAL DESCRIPTION

Auto power-off time (min)	Settings

2	2-1

5	2-2

10	2-3

15	2-4

30	2-5

60	2-6

120	2-7

Table 1-403

• The display indicates the new setting (if 10 min, indicates ‘2-3’).

5)Press the Start key.

• The auto power-off time is changed, and the display returns to “

”.

6)Press the AE key.

• The copier returns to standby state.

Reference:

If you want to disable the auto power-off function, use service mode (See p. 10-109.).

5.	Zoom Fine-Adjustment (	)
1)	Hold down the AE key for 4 sec or more.
	• The display indicates “	”.
2)	Enter ‘3’ using the keypad so that the display indicates “		”.

3)Press the Start key.

• The display indicates ‘3-1’ suggesting the direction of adjustment.

Direction of adjustment	Display

X direction (horizontal)	3-1

Y direction (vertical)	3-2

Table 1-404

Further, the copy density indicator shows the current setting. (See Figure 1-406.)

4)Press the copy density key to adjust the reproduction ratio in X direction. (See Figure 1-406.)

5)Press the Start key.

•The reproduction ratio in X direction is fine-adjusted, and the display indicates ‘3-

2’.

Further, the copy density indicator shows the current setting. (See Figure 1-406.)

6)Press the Density key to adjust the reproduction ratio in Y direction. (See Figure 1- 406.)

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7) Press the Start key.
• The zoom reproduction is fine-adjusted, and the display returns to “	”.

8)Press the AE key.

• The copier returns to standby state.

The fine-adjustment reproduction ratios as shown in the copy density display are as follows:

■ Zoom Fine-Adjustment (Reduce)	■ Zoom Fine-Adjustment (Enlarge)
Press the Lighter key.	Press the Darker key.
Initial setting	Initial setting
(±0%)	(±0%)
-0.2%	+0.2%
-0.4%	+0.4%
-0.6%	+0.6%
-0.8%	+0.8%
-1.0%	+1.0%

Figure 1-402

6. Turning On and Off the Auto Cassette Change Mechanism (

)

1) Hold down the AE key for 4 sec or more.

• The display indicates “	”.
2) Enter r using the keypad so that the display indicates “		”.

3)Press the Start key.

• The display indicates the current setting (if initial setting, ‘4-1’).

State of auto cassette change function	Settings

On	4-1

Off	4-0

Table 1-405

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+ 359 hidden pages

Canon NP6218 Service Manual

CONTENTS

CHAPTER 1

I. FEATURES

II. SPECIFICATIONS

III. NAMES OF PARTS

IV. OPERATION