Canon NP7120 manuals
NP7120
Table of contents
- Table Of Contents
- Table Of Contents
- Table Of Contents
- Table Of Contents
- Table Of Contents
- I. FEATURES
- II. SPECIFICATIONS
- III. NAMES OF PARTS
- ADF Type
- B. Cross Section
- IV. USING THE MACHINE
- B. User mode
- USER
- if jams occur frequently
- VI. IMAGE FORMATION
- basic operation
- I. BASIC OPERATIONS
- B. Outline of Electrical Circuitry
- C. Basic Sequence of Operations
- D. Controlling the Main Motor (M1)
- E. Inputs to and Outputs from the DC Controller
- I. OPERATIONS
- A. Outline
- B. Varying the Reproduction Ratio
- C. Lens Drive System
- D. Scanner Drive System
- a. scanner drive assembly
- outline of the scanner drive cable
- b. lens drive assembly
- c. exposure system
- removing the thermal fuse
- image formation system
- I. IMAGE FORMATION SYSTEM
- B. Timing Chart for the Image Formation System
- C. Primary Charging Roller Bias Control
- D. Controlling the Transfer Roller Bias
- Separation Static Eliminator Bias
- Originals
- G. Controlling the Pre-Exposure Lamp
- H. Controlling the Side Blanking Mechanism
- II. DEVELOPING ASSEMBLY CLEANING ASSEMBLY
- B. Detecting the Level of Toner
- C. Detecting Waste Toner
- D. Primary Charging Roller Cleaning Control
- III. DISASSEMBLY/ASSEMBLY
- A. Drum Unit
- removing the drum unit
- after replacing the drum unit
- B. Transfer Charging Assembly
- C. Blank Exposure
- D. Developing Assembly
- I. PICKUP/FEEDING SYSTEM
- B. Controlling the Pickup Roller
- C. Controlling the Movement of Paper
- D. Detecting Jams
- delivery delay jam
- II. DISASSEMBLY/ASSEMBLY
- A. Pickup Assembly
- B. Multifeeder Assembly
- removing the separation pad
- C. Feeding Assembly
- D. Registration Roller Assembly
- removing the registration roller
- E. Delivery Assembly
- B. Controlling the Fixing Temperature
- II. POWER SUPPLY SYSTEM
- B. Power Supply Circuit
- C. Detecting an Error on the Com posite Power Supply PCB
- A. External Covers
- B. Control Panel
- C. Copyboard Glass
- D. Main Motor/Main Drive Assem bly
- E. Electrical System
- supply pcb
- power supply pcb
- Table Of Contents
- B Basic Construction
- C. Basic Operations
- D. Detecting an Original
- E. Pickup Operation
- F. Delivery
- G. Controlling the Pickup Motor
- H. Controlling the Belt Motor
- I. Detecting Original Jams
- J. Power Supply
- A. Removing the ADF
- B. External Covers
- C. Drive System
- D. Feeding System
- registration roller
- I. SELECTING THE SITE
- II. UNPACKING AND INSTALLATION
- installing the drum unit
- connecting the power cord
- adjusting the machine
- B. Placing Copy Paper
- III. MOVING THE MACHINE
- I. PERIODICALLY REPLACED PARTS
- troubleshooting
- INSPECTION
- B. Points to Note for Servicing
- II. STANDARDS AND ADJUSTMENTS
- C. Electrical
- checking the photointerrupters
- III. TROUBLESHOOTING IMAGE FAULTS
- B. Sample Image Faults
- C. Troubleshooting Image Faults
- the back of the copy is soiled
- the copy has a fixing fault
- the copy has a blurred image
- the copy has horizontal fogging
- the copy is blank
- IV. TROUBLESHOOTING MALFUNCTIONS
- the scanner fails to move forward
- the scanning lamp fails to turn on
- the fixing heater fails to turn on
- PROBLEMS
- pickup assembly
- B. Faulty Feeding
- VI. ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS
- B. Switches
- C. Lamp, Heater, Motor, Etc
- d. pcbs
- e. adf
- Check Pins by PCB
- VII. SERVICE MODE
- ending service mode
- C. Adjustment Mode (30)
- D. Operation/Inspection Mode (40)
- E. Machine Settings Mode (50)
- VIII. SELF DIAGNOSIS
- A. GENERAL TIMING CHART
- B. SIGNALS AND ABBREVIATIONS
- C. GENERAL CIRCUIT DIAGRAM
- D. DC CONTROLLER CIRCUIT DIAGRAM
- E. ADF CONTROLLER CIRCUIT DIAGRAM
- CIRCUIT DIAGRAM
- G. CONTROL PANEL CIRCUIT DIAGRAM
- H. AE SENSOR CIRCUIT DIAGRAM
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