Canon NP7161- User Manual

Canon NP7161

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Table of Contents:

  • Page 2 – IMPORTANT; COPYRIGHT © 1998 CANON INC.
  • Page 5 – INTRODUCTION
  • Page 6 – ii; The following rules apply throughout this Service Manual:
  • Page 7 – iii; Cassette Feeding Module-C1
  • Page 8 – iv
  • Page 9 – CONTENTS; CHAPTER 1 GENERAL DESCRIPTION; CHAPTER 2 BASIC OPERATION
  • Page 10 – CHAPTER 3 EXPOSURE SYSTEM
  • Page 11 – vii
  • Page 12 – viii; CHAPTER 6 FIXING SYSTEM
  • Page 13 – ix; CHAPTER 8 INSTALLATION
  • Page 15 – xi; APPENDIX
  • Page 17 – CHAPTER 1
  • Page 19 – FEATURES; capable of holding a maximum of 1,050 sheets.
  • Page 23 – Specifications subject to change without notice.
  • Page 24 – II
  • Page 28 – IV. OPERATING THE MACHINE
  • Page 30 – provide the functions shown in the following table.
  • Page 32 – Instruct the user to clean the following parts at least once a week.
  • Page 33 – • Toner Cartridge
  • Page 34 – The copier is constructed as shown in Figure 1-701.
  • Page 37 – CHAPTER 2; Process speed
  • Page 39 – BASIC MECHANISMS; A. Functional Construction
  • Page 40 – B. Outline of the Electrical Circuitry; controller PCB. The ICs on the DC controller PCB are shown below.
  • Page 42 – C. Basic Sequence of Operations; Basic Sequence of Operations at Power-On
  • Page 44 – Basic Sequence of Operations at Copy Start
  • Page 46 – Detecting an Error
  • Page 47 – E. Inputs to the DC Controller
  • Page 50 – F. Outputs from the DC Controller
  • Page 55 – CHAPTER 3
  • Page 57 – OUTLINE OF OPERATION; A. Changing the Reproduction Ratio
  • Page 59 – II. LENS DRIVE SYSTEM
  • Page 60 – Motor Control Circuit
  • Page 62 – III. SCANNER DRIVE SYSTEM; and the selected reproduction ratio.
  • Page 63 – B. Scanner Motor Control Circuit
  • Page 64 – the selected paper size, reproduction ratio, and copying mode.
  • Page 65 – E. Scanner Movement in Page Separation Mode; PCB with reference to the wait position of the scanner.
  • Page 66 – A. Detecting the Original Size; To enable identification, the copier uses the following:; Detection of the Original Size by the ADF
  • Page 67 – assembling the copier.
  • Page 68 – A. Scanner Drive Assembly; Removing the Scanner Motor
  • Page 69 – Removing the Scanner Drive Cable; ) In standby state, press the Reduce key so
  • Page 71 – Routing the Scanner Drive Cable
  • Page 72 – Adjusting the Position of the Mirror; Be sure to adjust the position of the mirror
  • Page 73 – Adjusting the Tension of the; Be sure to adjust the tension as follows
  • Page 74 – B. Lens Drive Assembly; Removing the Lens Drive Motor; ) Remove the inside cover and the delivery
  • Page 75 – Removing the Mirror Motor; ) While the copier is in standby state, press
  • Page 77 – CHAPTER 4
  • Page 79 – OUTLINE OF THE PROCESSES; formation consists of the following functions:
  • Page 81 – C. Controlling the Intensity of the Scanning Lamp
  • Page 82 – b. Controlling the Intensity of the Scanning Lamp; c. Detecting the Activation of the Scanning Lamp
  • Page 83 – Protection Mechanisms
  • Page 85 – E. Controlling the Developing/Separation Static Eliminator Bias
  • Page 87 – b. Turning On/Off the Separation Static Eliminator
  • Page 90 – F. Controlling the Blank Exposure Lamp
  • Page 91 – Turning On the Blank Exposure Lamp in Reduce Mode
  • Page 92 – ASSEMBLY
  • Page 93 – a paddle at the bottom of the waste toner box.
  • Page 94 – B. Detecting and Controlling the Level of Toner
  • Page 95 – C. Monitoring the Waste Toner Feeding Screw; engagement of the spring clutch with the gear A.
  • Page 96 – D. Monitoring the Waste Toner Box
  • Page 98 – E. Control by the Cleaner Thermistor; Copying Speed Down Sequence; • A4 Original, A4 Copy
  • Page 99 – Measuring the Density of the Original
  • Page 102 – A. Scanning Lamp Assembly; Removing the Scanning Lamp
  • Page 103 – Mounting the Scanning Lamp
  • Page 104 – Exposure Lamp Assembly
  • Page 106 – Removing the Drum Unit; ) Open the top unit, release the developing
  • Page 107 – Cleaning the Photosensitive Drum; If the surface of the photosensitive drum; Removing the Cleaner Thermistor
  • Page 108 – Assembly; Removing the Primary Charging; slightly to the front.
  • Page 109 – Removing the Transfer Charging; ) Open the copier top, and remove the front
  • Page 110 – As many as two charging wires are; Stringing the Charging Wires; Basically, all charging wires are strung in
  • Page 111 – • Primary Charging Assembly
  • Page 112 – ) Free a length of about 5 cm from the
  • Page 114 – Adjusting the Height of the; To adjust each charging wire, turn its
  • Page 115 – G. Developing Assembly; Removing the Developing
  • Page 116 – ) Lift the front of the developing upper; Removing the Developing Cylinder
  • Page 118 – Caution
  • Page 119 – CHAPTER 5
  • Page 121 – center of the pick-up/feeding path to ensure stable movement.
  • Page 124 – C. Operation of the Cassette Lifter
  • Page 126 – D. Detecting the Size of the Cassette; size switch PCB mounted to the left of the cassette slot.
  • Page 127 – Detecting the Cassette Size; the cassette switching PCB.
  • Page 129 – B. Detecting the Size of Paper in the Multifeeder
  • Page 131 – IV. CONTROLLING THE REGISTRATION CLUTCH; on the photosensitive drum at a specific location.
  • Page 133 – Registration Delay Jam
  • Page 134 – Delivery Delay Jam
  • Page 136 – ) Push the section indicated by an arrow,
  • Page 137 – ) Remove the registration roller assembly.
  • Page 138 – Removing the Feed Roller
  • Page 139 – Mounting the Separation Roller; Mount the separation roller by reversing
  • Page 140 – B. Multifeeder Assembly; Removing the Multifeeder Tray; ) Open the multifeeder tray, and remove the; Removing the Multifeeder; ) Remove the rear cover, and open the right
  • Page 141 – Roller
  • Page 142 – Adjusting the Pressure of the; If double feeding or pick-up failure
  • Page 143 – C. Registration Roller; Removing the Registration Roller
  • Page 144 – Removing the Cassette Size Switch
  • Page 145 – •AB
  • Page 146 – Registration
  • Page 147 – CHAPTER 6
  • Page 150 – B. Controlling the Fixing Temperature; • Paper Width >257 mm
  • Page 151 – • 182 mm > Paper Width
  • Page 152 – • Power Save Key ON or Auto-Power OFF
  • Page 153 – C. Error Detection Circuit; following items for an error:
  • Page 154 – Surface Temperature of the Fixing Upper Roller
  • Page 155 – As a rule, do not operate the copier with any of its parts removed.
  • Page 156 – Removing the Fixing Assembly
  • Page 157 – harness from the harness guide.
  • Page 158 – Removing the Fixing Heater; free the harness from the harness guide.
  • Page 159 – Removing the Thermal Switch
  • Page 160 – Removing the Main Thermistor
  • Page 161 – Removing the Fixing Upper Roller; ) Remove the lower delivery assembly (See
  • Page 162 – Removing the Fixing Lower Roller
  • Page 163 – Adjusting the Nip; The nip is appropriate if it is as indicated
  • Page 164 – Removing the Upper Separation
  • Page 165 – Removing the Delivery Roller
  • Page 167 – CHAPTER 7
  • Page 169 – FANS; shows the timing at which each fan turns on.
  • Page 170 – drive voltage of the exhaust fans as shown in Figure 7-103.
  • Page 172 – A. Outline of Power Supply
  • Page 173 – B. Power Supply Circuitry; supply PCB supplies the DC controller PCB with +5 VR.
  • Page 174 – accessory power supply PCB, which generates DC power.
  • Page 175 – C. Protection Mechanisms of the Power Supply Circuitry; to the power supply PCB to reset the protection mechanism.
  • Page 177 – The number in parentheses indicates the
  • Page 178 – Remove the appropriate covers as follows; Removing the Right Door
  • Page 179 – Removing the Upper Left Cover; ) Open the copier top, and remove the copy; Removing the Delivery Upper
  • Page 180 – Removing the Lower Inside Cover; ) Remove the front door and the transfer
  • Page 181 – Removing the Control Panel; remove the control panel.
  • Page 182 – Removing the Copyboard Glass
  • Page 183 – Removing the Scanner Cooling Fan
  • Page 184 – Removing the Exhaust Fan
  • Page 185 – Remove the Ozone Filter
  • Page 186 – Removing the Counter Assembly; F. Main Motor Assembly; Removing the Main Motor; ) Remove the rear cover and the rear upper
  • Page 187 – Removing the DC Controller PCB; The DC controller PCB is equipped with; Points to Note When Replacing the; • When sending the DC controller to the
  • Page 188 – H. Removing the Power; Removing the Power Supply PCB; ) Disconnect all connectors of the power; Removing the High-Voltage; Supply PCB
  • Page 189 – J. Lamp Regulator PCB; Removing the Lamp Regulator PCB
  • Page 191 – CHAPTER 8
  • Page 193 – SELECTING THE SITE; that the exhaust from one will not be drawn into the vent of another.
  • Page 194 – Step; II. UNPACKING AND INSTALLATION; before starting the installation work.
  • Page 195 – B. Removing the Metal Fixings
  • Page 196 – C. Mounting the Drum Unit; • Take care not to damage the
  • Page 198 – Thereafter, set the static eliminator; D. Cleaning the Parts and Making Checks
  • Page 200 – E. Checking the Images/Operations and User Mode; Steps
  • Page 204 – III. RELOCATING THE MACHINE
  • Page 205 – ) Lead out the harness, and disconnect the; CONTROL CARD IV N
  • Page 206 – V. INSTALLING THE REMOTE DIAGNOSTIC DEVICE II
  • Page 208 – ) Lead the harness through the opening in
  • Page 209 – you need not mount one newly.
  • Page 210 – 0) Connect the power supply unit to the
  • Page 212 – 4) Connect the telephone line to the device.
  • Page 213 – 7) Check if the device is capable of ringing
  • Page 216 – ) Remove the delivery lower cover, and set
  • Page 217 – ACCESSORY HEATER; A. Installing the Heater Switch; ) Remove the rear cover, and cut off the
  • Page 218 – Drum Heater
  • Page 219 – C. Installing the Mirror Heater; ) Mount the inside cover and the delivery
  • Page 221 – CHAPTER 9
  • Page 223 – PERIODICALLY REPLACED PARTS; Remarks
  • Page 224 – II. CONSUMABLES AND DURABLES
  • Page 225 – III. SCHEDULED SERVICING CHART; replacement is expected.
  • Page 227 – IV. SCHEDULED SERVICING TABLE
  • Page 229 – TROUBLESHOOTING
  • Page 231 – GUIDE TO TROUBLESHOOTING TABLES
  • Page 233 – Density Slope Adjustment; A. Image Adjustment Basic Procedure
  • Page 234 – B. Points to Note for Scheduled Servicing
  • Page 235 – II. STANDARDS AND ADJUSTMENTS
  • Page 237 – Routing the Scanner Drive Cable; Tension of the Cable” and “Adjusting the Position of the Mirror.”
  • Page 238 – Adjusting the Position of the Mirror
  • Page 239 – Adjusting the Tension of the Scanner Drive Cable
  • Page 240 – C. Image Formation System; • Transfer Charging Assembly
  • Page 242 – For the transfer charging assembly, mount the guide wire plate.
  • Page 243 – Adjusting the Height of the Charging Wires
  • Page 244 – Adjusting the Pressure of the Separation Pad; holder [2] to adjust the force of the separation pad tension spring.
  • Page 246 – Adjusting the Height of the Fixing Assembly Inlet Guide
  • Page 247 – a and c represent points 10 mm from both ends of copy paper.
  • Page 248 – Obtaining Optimum Exposure; • Repeat steps 5) through 7) until an optimum image is obtained.
  • Page 249 – (Be sure that the image is an optimum image before starting the work.)
  • Page 250 – b. AE Scanning Intensity Adjustment
  • Page 251 – c. AE Slope Adjustment
  • Page 252 – After Replacing the DC Controller PCB; as the old DC controller PCB.
  • Page 253 – Checking the Photointerrupters; indicated in the tables that follow.
  • Page 255 – Checking the Site Environment; must remain connected throughout day and night.); Checking the Originals; Identify the problem as to its cause—original page or the copier.; Checking the Copyboard Cover and Copyboard Glass
  • Page 256 – Checking the Charging Assembly; Servicing Chart and the Periodically Replaced Parts Table.
  • Page 258 – B. Image Fault Samples; not available
  • Page 259 – C. Troubleshooting Image Faults
  • Page 272 – IV. TROUBLESHOOTING MALFUNCTIONS
  • Page 287 – The blank exposure lamp fails to turn on.
  • Page 289 – The registration roller fails to rotate.
  • Page 291 – The Add Toner indicator fails to turn off.
  • Page 292 – The Waste Toner Box Full indicator fails to turn off.
  • Page 293 – The Add Paper indicator fails to turn off.
  • Page 294 – The Set Control Card indicator fails to turn on.
  • Page 295 – The Set Control Card indicator fails to turn off.
  • Page 296 – V. TROUBLESHOOTING FEEDING PROBLEMS; according to location.
  • Page 300 – VI. ARRANGEMENT AND FUNCTIONS OF; A. Sensors and Switches
  • Page 307 – PCB; those needed for servicing work in the field are discussed.
  • Page 310 – Lamp Regulator PCB
  • Page 312 – B. Using Service Mode; Starting Service Mode
  • Page 313 – C. Using Adjust Mode and Function Mode
  • Page 324 – Be sure that the copier is in standby state when executing any item.
  • Page 332 – • The copier’s control panel indicates the respective error code.
  • Page 334 – D. Cassette Feeding Module
  • Page 337 – A. GENERAL TIMING CHART
  • Page 338 – B. SIGNALS AND ABBREVIATIONS
  • Page 341 – DC CONTROLER PCB; C. GENERAL CIRCUIT DIAGRAM
  • Page 343 – D. SPECIAL TOOLS LIST
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COPYRIGHT © 1998 CANON INC.

CANON NP7161/NP7160 REV.0 AUG. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)

FY8-13FB-000

AUG. 1998

SERVICE
MANUAL

REVISION 0

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Summary

Page 2 - IMPORTANT; COPYRIGHT © 1998 CANON INC.

COPYRIGHT © 1998 CANON INC. CANON NP7161/NP7160 REV.0 AUG. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) IMPORTANT THIS DOCUMENTATION IS PUBLISHED BY CANON INC., JAPAN, TO SERVE AS A SOURCE OFREFERENCE FOR WORK IN THE FIELD. SPECIFICATIONS AND OTHER INFORMATION CONTAINED HEREIN MAY VARY SLIGHTLY FROMACTU...

Page 5 - INTRODUCTION

COPYRIGHT © 1998 CANON INC. CANON NP7161/NP7160 REV.0 AUG. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) i INTRODUCTION This Service Manual contains basic facts and figures on the NP7161/NP7160 needed to service the machine in the field. This copier is designed to enable full automatic copying work, and ...

Page 6 - ii; The following rules apply throughout this Service Manual:

COPYRIGHT © 1998 CANON INC. CANON NP7161/NP7160 REV.0 AUG. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) ii 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 syste...

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