REVISION 0COPYRIGHT © 1996 CANON INC. CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)MAY 1997 FY8-23AP-000

Canon NP6218 Service Handbook

system configuration

I. FEATURES

II. SPECIFICATIONS

Features

Others

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

III. NAMES OF PARTS

B. Cross Section

Cassette Feeding Module-A2

IV. OPERATION

B. Operation Mode

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

D. User Mode

Common Operations

Zoom Fine-Adjustment ( )

Non-Sort (with ADF and sorter installed—option) ( )

Adjustment Method for Standard Mode ( )

Quick Guide to User Mode

E. Handling the Toner Bottle

VII. IMAGE FORMATION

basic operation

I. BASIC CONSTRUCTION

B. Outline of the Electrical Circuitry

D. Main Motor Control Circuit

E. Inputs to the DC Controller PCB

Inputs to the DC Controller PCB (2/3)

Inputs to the DC Controller PCB (3/3)

F. Outputs from the DC Controller PCB

I. BASIC OPERATION

B. Lens Motor Drive Circuit

III. SCANNING DRIVE SYSTEM

Relationship between the Scanner Sensor and Signals

Driving the Scanner Motor

Separation Mode (non-AE page separation, A4, 2 copies)

DISASSEMBLY AND ASSEMBLY

Detaching the Scanner Cable

Assembling the Mirror Position Tool

Routing the Scanner Cable

Mirrors (optical length of No 1, 2, and 3 mirrors)

Mirror

B. Lens Drive Assembly

Routing the Lens Cable

Adjusting the Position of the Change Solenoid

I. PROCESSES

C. Controlling the Scanning Lamp

Turning On and Off the Scanning Lamp

Controlling the Intensity of the Scanning Lamp (FL1)

Controlling the Fluorescent Lamp Heater

Fluorescent Lamp Automatic

D. Controlling the Primary Charging Roller Bias

Turning On and Off the Primary Charging Roller Bias

Outline

Switching the Static Eliminator Bias Voltage Level

G. Controlling Blank Exposure

Blanking (Whiting) of Non Image Areas for Reduction

H. Controlling the Primary Corona Roller Cleaning Mechanism

I. Releasing the Transfer Roller

II. DEVELOPING ASSEMBLY AND CLEANING ASSEMBLY

B. Controlling the Toner Level Detection

C. Controlling the Development Bias

Component of the Development Bias

D. Automatic Control of Copy Density

AE Adjustment

III. DISASSEMBLY AND ASSEMBLY

the Fluorescent Lamp Heater/Scanning Lamp

Detaching the Blank Exposure Assembly

Detaching the Blank Exposure Lamp

Detaching the Blank Shutter Solenoid

Positioning the Blank Shutter Solenoid

Routing the Blanking Cable

B. Drum Unit

Cleaning

C. Primary Corona Assembly

Cleaning the Cleaning Pad and the Primary Corona Roller

Positioning the Solenoid for the Primary Charging Roller

D. Transfer Charging Assembly

E. Developing System

Removing the Developing Cylinder Side Seal

Installing the Side Seal and the Blade Assembly

I. PICK-UP/FEEDING SYSTEM

II. PICK-UP OPERATION (COPIER)

B. Sequence of Operations (pick-up feeding assembly; A4, 2 copies)

III. PICK-UP FROM THE CASSETTE FEEDING MODULE-A2

vi. identifying jams

C. Pre-Registration Stationary Jam

D. Separation Delay Jam

F. Delivery Delay Jam

VII. DISASSEMBLY AND ASSEMBLY

Detaching the Pick-Up Roller

Points to Note When Attaching the Pick-Up Roller

Detaching the Separation Pad

NP6218

Canon NP6218 Service Handbook

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