Page 1 H11-5512 RAM DIMM MODULE FLASH ROM MODULE FR5 R73-5008 Adobe PostScript 3 Module I H11-5532 ETHERNET BOARD EB-52 FX H11-5542 HY8-19AP-000 SEPT. 1999 COPYRIGHT © 1999 CANON INC. CANON LASER CLASS 3170/3175/3175MS SEPT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 2 This manual is copyrighted with all rights reserved. Under the copyright laws, this manual may not be copied, reproduced or translated into another language, in whole or in part, without the written consent of Canon Inc.. Copyright © 1999 by Canon Inc.
Page 3 0999AT0.00-0...
Page 4 I. MEANINGS OF MARKS The marks used in this manual have the following meanings. Mark Meaning Indicates a general caution or warning, or otherwise to communicate the presence of a hazard. Warns of the possibility of an electric shock. Informs you of fire-related cautions. Warns against disassembly of parts.
Page 5 II. ABOUT THIS MANUAL This manual consists of the following five chapters, each providing appropriate information needed to service the product. Chapter 1: Safety and Precautions Provides cautions and warnings needed when servicing the product while ensuring safety, and explains the protective functions built into the product. Be sure to go through the descriptions.
Page 6 III. REVISION HISTORY REVISION CONTENT Original...
Page 7: Table Of Contents
IV. TABLE OF CONTENTS Chapter 1: Safety and Precautions Page 1 - 1 1. DANGER TO PERSONNEL 1 - 1 1.1 Electric Shock 1 - 2 1.1.1 AC line (AC 120V household current) 1 - 2 1.1.2 Telephone line 1 - 2 1.1.3 Printer high voltage terminal 1 - 3 1.2 High Temperature Parts...
Page 8 3 - 9 1.3.3 Scanner section specifications 3 - 12 1.3.4 Printer section specifications 3 - 15 1.3.5 Functions 3 - 19 1.4 Printer Specifications (LASER CLASS 3175 only) 3 - 21 2. THEORY OF OPERATIONS 3 - 21 2.1 Product Overview...
Page 9 3 - 21 2.1.1 Fax main unit 3 - 21 2.1.2 Option overview 3 - 22 2.1.3 Consumables 3 - 24 2.2 Mechanical Overview 3 - 24 2.2.1 Unit layout diagrams 3 - 24 2.2.2 Document and recording paper flow 3 - 26 2.2.3 Drive system layout 3 - 28...
Page 10 4 - 6 1.2.2 Special tools 4 - 7 2. CONSUMABLES REPLACEMENT 4 - 7 2.1 Toner Cartridge 4 - 7 2.2 Recording Paper 4 - 8 2.3 Stamp Ink 4 - 11 3. CLEANING 4 - 11 3.1 Main Unit 4 - 11 3.2 Document Pick-up Roller 4 - 11...
Page 11 5 - 44 1.6 Moving the Fax Unit 5 - 45 2. SERVICE TOOLS 5 - 45 2.1 Printer Driver Tester 5 - 45 2.1.1 Outline 5 - 46 2.1.2 Explanation of LEDs and Switches 5 - 47 2.1.3. Operation 5 - 53 3.
Page 12 5 - 125 4.1.4 Maintenance and service 5 - 129 4.2 Adobe PostScript 3 Module I 5 - 129 4.2.1 Safety and precautions 5 - 129 4.2.2 Service operations 5 - 134 4.2.3 Technical Information 5 - 134 4.2.4 Maintenance and service 5 - 135 4.3 Flash ROM Module FR5 5 - 135...
Page 13 V. ILLUSTRATION INDEX Chapter 1: Safety and Precautions Page 1 - 2 Figure 1 - 1 Printer High Voltage Terminal 1 - 3 Figure 1 - 2 High Temperature Parts 1 - 7 Figure 1 - 3 Moving and Rotating Parts 1 - 9 Figure 1 - 4 Laser Shutter...
Page 14 2 - 35 Figure 2 - 29 User Menu Settings (10/13) 2 - 36 Figure 2 - 30 User Menu Settings (11/13) 2 - 37 Figure 2 - 31 User Menu Settings (12/13) 2 - 38 Figure 2 - 32 User Menu Settings (13/13) 2 - 41 Figure 2 - 33 Service Data Setting Method...
Page 15 3 - 59 Figure 3 - 27 Separation 3 - 60 Figure 3 - 28 Fixing section 3 - 63 Figure 3 - 29 Function Block Diagram (1) 3 - 67 Figure 3 - 30 Function Block Diagram (2) 3 - 70 Figure 3 - 31 Component Block Diagram (1) 3 - 74...
Page 16 4 - 21 Figure 4 - 19 Cleaning Location 1 4 - 21 Figure 4 - 20 Cleaning Location 2 4 - 22 Figure 4 - 21 Preparation for Cleaning 1 4 - 22 Figure 4 - 22 Preparation for Cleaning 2 4 - 23 Figure 4 - 23 Preparation for Cleaning 3...
Page 17 5 - 65 Figure 5 - 17 External View 5 - 66 Figure 5 - 18 Electric Circuit Section 5 - 68 Figure 5 - 19 External View 5 - 68 Figure 5 - 20 Attachment to the Main Unit 1 5 - 69 Figure 5 - 21 Attachment to the Main Unit 2...
Page 18 5 - 150 Figure 5 - 67 Options 5 - 151 Figure 5 - 68 Flow of Print Data 1 5 - 152 Figure 5 - 69 Flow of Print Data 2 5 - 153 Figure 5 - 70 PDL Menus Flow 5 - 155 Figure 5 - 71 Components...
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Page 20 Chapter 1 Safety and Precautions...
Page 21: Danger To Personnel
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 1. DANGER TO PERSONNEL 1.1 Electric Shock Precautions Before disassembling the fax, carry out the following to prevent electric shock: (1) Disconnect the power cord from the outlet. (2) Disconnect the modular jack cord (telephone line) from the fax. Precautions when servicing the fax with the power on When you must service the fax with the power cord plugged in, you must not ground your body with grounding wrist straps.
Page 22: Ac Line (Ac 120V Household Current)
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 1.1.1 AC line (AC 120V household current) Power supply unit (primary side) The AC 120V is supplied to the primary side of the power supply unit when the power cord is plugged in. 1.1.2 Telephone line NCU board (primary side) When connected to the telephone line, a line voltage of approx.
Page 23: High Temperature Parts
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 1.2 High Temperature Parts Precautions To prevent burns while disassembling the fax, disconnect the power cord at least 10 minutes before starting disassembly, to allow high temperature parts to cool down. How to treat burns Heat of about 122°F (50°C) or more causes burns.
Page 24: Fire
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 1.3 Fire Danger Do not throw the lithium battery or the toner cartridge into fire. Lithium battery The lithium battery contain lithium, organic solvents and other combustible substances. If the lithium battery is thrown into fires, it may rupture and burn fiercely.
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Page 26: Moving And Rotating Parts
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 1.4 Moving and Rotating Parts Precautions To prevent accidents involving moving or rotating parts during servicing, that disconnect the power cord before starting disassembly. When you must service the fax with the power cord plugged in, you must not wear bracelets, necklaces, neckties, or other objects.
Page 27 LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions Read motor Separation roller (Upper) Main motor Multi-purpose tray pickup solenoid Multi-purpose tray pickup roller Document feed roller Document eject roller DC motor Pressure roller Cassette pickup roller Separation roller (Upper) Separation roller (Lower) Pick-up roller Document eject roller Read motor...
Page 28: Laser Beams
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 1.5 Laser Beams This fax complies with 21 CFR Chapter 1 Subchapter J as a Class 1 laser product under the U.S. Department of Health and Human Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968.
Page 29 LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions Laser/Scanner unit Laser light Laser shutter FX6 toner cartridge Figure 1-4 Laser Shutter...
Page 30: Danger To Equipment
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 2. DANGER TO EQUIPMENT 2.1 Handling the FAX General Precautions TO AVOID SERIOUS INJURY, NEVER DISASSEMBLE THE FAX. EXPOSED POWER POINTS INSIDE THE FAX CAN CAUSE ELECTRICAL SHOCK IF YOU TOUCH THEM. After you unplug the fax unit, always wait at least 5 seconds before you plug it in again.
Page 31 LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions Before you transport the fax, remove the cartridge. To protect the cartridge from bright light, cover it with its original protective bag or a cloth. Keep liquids, cleaners, and other solvents away from the fax unit.
Page 32: Storage And Handling Of Fx6 Toner Cartridge
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 2.2 Storage and Handling of FX6 Toner Cartridge Whether the cartridge is still sealed in its box or installed in the printer, the effect of the natural environment will change it over time regardless of the number of prints.
Page 33: Storing Unsealed Parts
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 2.2.2 Storing unsealed parts As an organic photoconductor (OPC) is used in the photosensitive drum, it will deteriorate if exposed to strong light. As there is also toner in the cartridge, be sure to explain to the customer the need to be careful in handling and storing unsealed cartridges.
Page 34 LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions After loading the cartridge in the printer, print 3 to 5 sheets of test patterns and check for toner leakage to prevent output image from dirt. (2) Remove the cartridge from the printer before transporting it. During transportation, the cartridge must be kept in the protective bag or thick cloth to prevent direct exposure to light.
Page 35: Precautions When Servicing
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 2.3 Precautions when Servicing 2.3.1 Damage due to electrostatic discharge This fax contains contact sensor and printed circuit boards that use many electrical components such as ROM, RAM and custom ICs. A static charge can damage these components, so, care must be taken to prevent damage caused by electrostatic discharge when disassembling the fax.
Page 36: Lubrication Points
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 2.3.2 Lubrication points Do not touch the greased parts. If you do, the grease (applied for smooth operation of the printer mechanism and to increase electrical conductivity) will come off. Use only specified grease. If you use other grease, the grease may oxidize, and weaken plastic parts.
Page 37: Printer Section
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 2.3.4 Printer section a) Transfer charging roller If skin, oil or, the like, gets on the rubber section of the transfer charging roller, the rear side of the recording paper can be soiled, and blank patches can occur in printing.
Page 38: Paper Load Section
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 2.3.5 Paper load section a) Pickup Roller Position When having assembled the paper pickup roller after parts replacement, before setting the cassette 1 or the cassette 2, install the toner cartridge, close the printer cover, connect the power cord, and the cassette pickup roller moves automatically to its initial position.
Page 39: Control Boards
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 2.3.6 Control boards a) SCNT board Jumper plug JP3 and J6 are for factory check only. Service technician must not remove it. SCNT board data User data, service data are stored in memory on the SCNT board. Therefore, these data must be printed out before replacing the REFERENCE SCNT board.
Page 40: Replacing Rom
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 2.3.7 Replacing ROM Observe the following precautions when replacing the ROM on the SCNT board, for example, when replacing a defective ROM or when upgrading the software. a) Preparation Print out all battery backed up data. Reception image data in image memory is erased approx.
Page 41: Precautions For Data Protection
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 3. PRECAUTIONS FOR DATA PROTECTION 3.1 Battery-backed up Data The SCNT board is provided with a function for backing up data in control processing memory (SRAM) and image storage memory (DRAM) by lithium battery, and rechargeable battery, even if a power interruption occurs, or the power cord is disconnected by accident.
Page 42: Backed Up By Rechargeable Battery
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 3.2 Backed up by Rechargeable Battery The data stored in the image memory on the SCNT board is backed up for about 12 hours by the secondary vanadium-lithium battery. 3.2.1 Data backed up by rechargeable battery Image data stored in the DRAM: Image Mode...
Page 43: Reception Image Data Transfer
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions For a sample printout of the memory clear list, see Chapter 2, 3.1 Report Output Function . REFERENCE 3.2.2 Reception image data transfer The received image data cannot be printed out due to printer engine trouble, the received image data can be transferred to another fax and printed.
Page 44: Backed Up By Lithium Battery
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 3.3 Backed up by Lithium Battery The lithium battery backs up control data registered in the SRAM on the SCNT board for five years with the power turned off. However, when the power is ON, there is no discharge of power from the lithium battery, so the actual life of the battery will be over 5 years.
Page 45 LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions c) Management data Data automatically stored as a record of the operating status. Item Description Activity report Transmission/Reception records for last 40 communictions System dump list A record of past communication conditions, error communication, etc.
Page 46: Printing The Lithium Battery Backup Data List
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 3.3.2 Printing the lithium battery backup data list The following data are backed up by lithium battery and can be printed out as a list. When to print out Make sure that you print out a list of the following data before replacing the lithium battery, or before removing the jumper plug (JP2) from the SCNT board with the power turned off.
Page 47 LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions Jumper plug caution The lithium battery backup function works when jumper plug JP 2 on the SCNT board is shorted by a jumper plug. This means that registered data will be erased when the power cord is disconnected with the jumper plug removed.
Page 48: Data Clear/Initialization Using Service Operation
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions Set button with “DATA ERROR PRESS SET KEY” displayed, the user and service data in SRAM will be initialized to their original factory settings. 3.4 Data clear/initialization using Service Operation This fax can clear/initialize individual data items with Service Data #8 Clear operation.
Page 49: Master Password
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 3.5 Master Password This fax has a password for confidential box setting changes and deletions, and passwords for managing each department. For service operations and for when the user forgets a password, there is a master password.
Page 50: What To Do When A Problem Occurs (All Clear)
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 3.6 What to do when a Problem Occurs (All clear) Very rarely, during use, the display may go out, all the buttons may stop working, or some other trouble may occur because of strong electrical noise or strong shock. If such trouble occurs, perform All clear operation.
Page 51: Protective Functions
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 4. PROTECTIVE FUNCTIONS 4.1 Reception Image Data Transfer Function Reception image data can be transferred to another fax if the image data cannot be printed out due to printer engine trouble. Reception image data transfer For details on the transfer of image data, see this Chapter, 3.2.2 Reception image data transfer .
Page 52: Built-In Safety Measures
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 4.3 Built-in Safety Measures 4.3.1 Overcurrent protection This fax is provided with an overcurrent protection circuit with built-in current fuse and thermal fuse, to prevent abnormal rises in temperature if an overcurrent flows to the motors and power supply due to driver IC trouble, software lockup and short circuits.
Page 53: Power Leakage Protection
LASER CLASS 3170/3175/3175MS Chapter 1: Safety and Precautions 4.3.3 Power leakage protection The AC line, telephone line and metal parts of this fax are completely insulated. This fax provides a grounding type (three-wire) power supply cable to prevent electrical shock. Even if electrical leakage should occur, use this fax only with a properly grounded electrical outlet of the correct voltage.
Page 54 Chapter 2 Operating Instructions...
Page 55 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 1. NAMES OF PARTS AND THEIR FUNCTIONS 1.1 Main Unit Overview DOCUMENT FEEDER TRAY DOCUMENT EXTENSION Holds documents for scanning. TRAY Open to support long documents during scanning. DOCUMENT GUIDES DOCUMENT OUTPUT TRAY Adjust to the width of the document.
Page 56 TEST PRINT BUTTON This button should only be used by authorized Canon dealers. Please do not press this button. TELEPHONE LINE JACK (L) POWER SOCKET Connect the telephone line here.
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Page 58 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 1.2 Operation Panel LCD Display Change Energy Displays messages and prompts during operation. Displays Cartridge Saver selections, text, numbers and names when registering information. Rec. Paper Change Cartridge Lights when toner in the toner cartridge runs low. Replace the toner cartridge.
Page 59 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions Energy Saver Switches the fax out of the energy saver mode. PRT. Message Switches the LCD display between the fax messages and the printer messages. Manual RX Switches the fax between the auto and manual receive mode. Direct TX Sets the fax in the direct sending mode so you can send a document ahead of other documents stored in the fax memory.
Page 60 If you want to use the stamp feature, call your authorized Canon dealer and request installation of this option. Figure 2-5 Operation Panel 3...
Page 61 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 2. BASIC OPERATION 2.1 Copying (1) Set the recording paper Refer to Chapter 5, 1.4 Assembling the Fax, Loading Paper in Paper cassettes 1 and 2 for the method of setting the recording paper. REFERENCE (2) Set the document face up on the document feeder tray Adjust the document guides to match the width of the document.
Page 62 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions Figure 2-7 Document Guides Adjustment Figure 2-8 Document Load Limit 2.2 Telephone (Only possible where a handset or telephone are connected) (1) Lift the handset or telephone receiver. The sound of dial tone will be heard. (2) Dial the other party's telephone number using the dial button on the main unit or the telephone.
Page 63 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 2.3 Transmission There are two ways to transmit the document: memory transmission and direct transmission. a) Memory transmission The set document is read into memory and then transmitted. Setting method Press the Direct TX button to turn off the Direct TX LED. Even during memory transmission, other documents can be reserved for transmission.
Page 64 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 2.4 Reception There are 3 reception methods: auto reception, manual reception, and auto reception switching. a) Auto reception This is set when the machine is used exclusively for facsimile. The initial condition of the machine is set to “Auto reception”. Setting method (1) Select “MAN/AUTO SWITCH”...
Page 65 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3. SERVICE OPERATION FUNCTIONS 3.1 Report Output Function 3.1.1 User report output functions This fax can output user reports manually by user operation, or automatically, according to user data registration. a) Manual output of reports by user operation Report type Operations One-touch dial list 1...
Page 66 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions c) Reports output automatically (Memory clear report) When this fax is turned on and the memory clear report is automatically printed out, the image data which appears on the report is the data which was deleted without being able to be backed up.
Page 67 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3.1.2 Service report output functions This fax outputs the service data setting status, past communications history reports, detailed error information reports, etc. in service mode. a) List of service reports This fax outputs the service reports shown below. Report type Operations In the service mode, press the Report button,...
Page 68 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions a-1) System data list This list shows service data setting statuses of service soft switches and service parameters. Figure 2-10 System Data List (1/7) 2-14...
Page 69 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions Figure 2-11 System Data List (2/7) 2-15...
Page 70 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions Figure 2-12 System Data List (3/7) 2-16...
Page 71 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions Figure 2-13 System Data List (4/7) 2-17...
Page 72 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions Figure 2-14 System Data List (5/7) 2-18...
Page 73 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions Figure 2-15 System Data List (6/7) 2-19...
Page 74 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions Figure 2-16 System Data List (7/7) “START DATE” records the date when this fax performs its first transmission or reception, after shipment from the factory. NOTE 2-20...
Page 75 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions a-2) System dump list This list shows the past communications statuses and error communications history. ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ Figure 2-17 System Dump List (1/2) 2-21...
Page 76 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions *1 : Date on which data was initialized with service data #8 CLEAR, ALL *2 : Total number of transmission *3 : Total number of pages transmitted for each document size *4 : Total number of reception *5 : Total number of pages received for each document size *6 : Total number of pages transmitted and received for each modem speed *7 : Total number of pages transmitted and received for each mode...
Page 77 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions Displays error information for the 3 most recent communications. ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ Figure 2-18 System Dump List (2/2) *1 : Service error code *2 : Communication start date and time (on 24-hour display) *3 : Telephone number sent from other party *4 : Maker code...
Page 78 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions a-3) Service activity report The ERROR TX REPORT includes appended service error codes and an error dump list. In user data “REPORT SETTINGS”, when the “REPORT WITH TX IMAGE” is set to “ON” in the “TX REPORT”, a section of the first page of transmitted image data is appended when memory transmission is done.
Page 79 *3 : Number sent from the other party or number dialled (lower 20 digits) *4 : ID sent from the other party, if the other party is a Canon fax *5 : Communication start date and time (on 24-hour display)
Page 80 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3.2 User Data Flowchart Press the Data registration to access User menu. Figures in boldface indicate the default setting. REGISTRATION 1.USER SETTINGS 1. DATA REGISTRATION 1. DATE & TIME 2. UNIT TELEPHONE # 3.
Page 81 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 2. REPORT SETTINGS 1. TX REPORT PRINT ERROR ONLY REPORT WITH TX IMAGE OUTPUT YES OUTPUT NO PRINT ERROR ONLY 2. RX REPORT OUTPUT YES OUTPUT NO OUTPUT YES 3. CONFID. RX REPORT OUTPUT NO OUTPUT YES 4.
Page 82 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3. TX SETTINGS 1. ECM TX 2. MID PAUSE SET (01~15) 02 SEC 1. REDIAL TIMES 3. AUTO REDIAL (01~10) 02 TIMES 2. REDIAL INTERVAL (02~99) 02 MIN. 4. BATCH TX 5. QUICK ON-LINE TX 6.
Page 83 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 5. FAX'S PRINTER SET 1. USE MP TRAY SET MP TRAY SIZE 2. # OF RX COPIES (01~99) 01 COPIES 3. SELECT CASSETTE 1. CASSETTE SW A 2. CASSETTE SW B AUTO SELECTION 4.
Page 84 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 2. RELAY TX GROUP 1.SETUP FILE SET RLY TX GROUP #00 (00~99) 1.GROUP DIAL NAME 2.PASSWORD 3.SUBADDRESS (INPUT) 4.RX PASSWORD (INPUT) 5.SELECT ORIG UNIT TEL= 6.PRINT RX DOC. 7.SELECT LOCATIONS TEL= 8.TX REPORT NOT TRANSMIT TRANSMIT (5 time settings)
Page 85 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3. MEMORY BOX SET BOX # 00 1.SETUP FILE (00~99) 1.FILE NAME 2.PASSWORD 3.SUBADDRESS 4.TX PASSWORD 5.RX PASSWORD 6.RECEIVE 1.SELECT ORIG UNIT TEL = 2.PRINT RX DOC. 1.PRINT METHOD MAN. AUTO 7.TRANSMIT (01~99)01 2.# OF RX COPIES 1.SELECT LOCATIONS TEL =...
Page 86 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 2.CHANGE DATA SET BOX #00 (00~99) PASSWORD (INPUT) 1.FILE NAME 2.PASSWORD 3.SUBADDRESS 4.TX PASSWORD 5.RX PASSWORD 6.RECEIVE 1.SELECT ORIG UNIT TEL = 2.PRINT RX DOC. 1.PRINT METHOD MAN. AUTO 7.TRANSMIT 2.# OF RX COPIES 1.SELECT LOCATIONS TEL = 2.TX DOCUMENT...
Page 87 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 4. PRESET POLLING SET BOX #00 (00~99) 1.SETUP FILE 1.FILE NAME 2.PASSWORD 3.SELECT LOCATIONS TEL= 4.START TIME EVERYDAY (5 time settings) SELECT DAYS 1.SUN (5 time settings) 2.MON 3.TUE 4.WED 5.THU 6.FRI 7.SAT 2.CHANGE DATA PASSWORD 1.FILE NAME...
Page 88 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 5. POLLING BOX. SET BOX #00 (00~99) 1.SETUP FILE 1.FILE NAME 2.PASSWORD 3.SUBADDRESS 4.TX PASSWORD 5.ERASE AFTER TX 2.CHANGE DATA PASSWORD (INPUT) 1.FILE NAME 2.PASSWORD 3.SUBADDRESS 4.TX PASSWORD 5.ERASE AFTER TX 3.DELETE FILE PASSWORD (INPUT) 6.
Page 89 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions PASSWORD (INPUT) 2.CHANGE DATA 1.FILE NAME 2.SELECT LOCATIONS TEL = 3.PASSWORD 4.SELECT ORIG UNIT TEL = 5.TIME SETUP 1.START TIME EVERYDAY (5 time settings) SELECT DAYS 1.SUN (5 time settings) 2.MON 3.TUE 4.WED 5.THU 6.FRI 7.SAT...
Page 90 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3.MEMORY LOCK RX 1.MEM LOCK PASSWORD 2.REPORT OUTPUT YES OUTPUT NO 3.TIME SETUP 1.START TIME EVERYDAY (5 time settings) SELECT DAYS 1.SUN (5 time settings) 2.MON 3.TUE 4.WED 5.THU 6.FRI 7.SAT 2.END TIME (5 time settings) EVERYDAY SELECT DAYS...
Page 91 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 11. (10) PHONE NO. CHECK 8. DUAL LINE OPTIONS* 1. 2nd LINE TEL # TEL= 2. 2nd LINE TYPE TOUCH TONE ROTARY PULSE LINE1 TX PRIORITY 3. TX LINE PRIORITY LINE2 TX PRIORITY LINE1 TX PROHIBIT LINE2 TX PROHIBIT 4.
Page 92 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 2. CODED SPD DIAL ( 000~ 127) 1. TELEPHONE NUMBER 2. NAME 3. OPTIONAL SETTING (5 time settings) 1. SET TIME 2. TX TYPE REGULAR TX CONFIDENTIAL TX 1.PASSWORD 2.SUBADDRESS ORIG RELAY TX 1.PASSWORD 2.SUBADDRESS 1.PASSWORD...
Page 93 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3.3 Service Switches 3.3.1 Hardware switches This fax has the following hardware switches. a) SCNT board Jumper switch (JP1) The secondary vanadium-lithium battery backs up image memory by causing a short with the jumper plug. Jumper switch (JP2) The lithium battery backs up control memory by causing a short with the jumper plug.
Page 94 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3.3.2 Service data setting Service data can be checked and changed with items on display menus. The effective SSSWs/parameters and their default values in this fax machine are shown in 3.3.4 Service data flowchart in this chapter. Detailed description of each SSSW/parameter is not given in this manual except the new SSSWs/parameters added to this model.
Page 95 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions #8 CLEAR (data initialization mode) Various data are initialized by selecting one of these setting items. There is a setting item for checking/inputting the total number of pages printed and total number of pages scanned by this fax. #9 ROM (ROM management) ROM data such as the version number and checksum are displayed.
Page 96 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3.3.4 Service data flowchart Service menu #1 SSSW Error management SW01 – (Service soft switch setting) Memory clear list output setting SW02 – – – – – – – Echo solution setting SW03 –...
Page 97 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions #2 MENU 001: Not used (Menu switch settings) 002: Not used 003: Not used 004: Not used 005: NL equalizer setting 006: DIAL Line monitor setting SERVICEMAN 007: 10 (-10dBm) Transmission level setting (8~15) 008: V.34 Baud rate...
Page 98 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions #3 NUMERIC Param. (Numeric parameter settings) Default Range 001: Not used 002: 10 (10%) (1~99) RTN signal transmission condition (1) 003: 15 (15 times) (2~99) RTN signal transmission condition (2) 004: 12 (12 lines) (1~99) RTN signal transmission condition (3) 005:...
Page 99 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions SW01 SW01 to 30: Not used #4A SPECIAL SW30 #4B NCU TONE/PULSE (NCU settings) DIAL TONE 2nd DIAL TONE BUSY TONE 0 BUSY TONE 1 REORDER TONE MULTI AUTO RX CNG DETECT RKEY PBX DIAL TONE PBX BUSY TONE U.S.A.
Page 100 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions #7 PRINTER #1. SSSW (Printer function settings) SW01 SW01~03: Not used – – – – – – – Cassette selection SW04 settings Reduction/cassette SW05 selection settings Reduction settings – – – – – SW06 SW07 SW07~20:...
Page 101 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3.3.5 Explanation of SSSW (Service Soft Switch Settings) The items registered and set by each of these switches comprise 8-bit switches. The figure below shows which numbers are assigned to which bits. Each bit has a value of either 0 or 1.
Page 102 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3.3.6 New SSSWs/parameters added to this model #1 SSSW SW01 (service soft switch 01: error management ) Function Service error code Output Not output Error dump list Output Not output Enter password at confidential Rx image data transfer Copy function 4 (New) ##300 series service error code...
Page 103 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions #1 SSSW SW05 (service soft switch 05: standard function <DIS signal> settings) Function Not used Not used Not used Send DIS signal bits 33 and over Recording paper length availability A4 size Arbitrary size declared in DIS signal 5 (New) Declare LTR/LGL in DIS signal Not used...
Page 104 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions #1 SSSW SW06 (service soft switch 06: scan condition settings) Function Document feed after DES on No feed Feed Prescan for document scanning No prescan Prescan Document length restriction Not restricted 39.37" (1 m) max. 3 (New) Stamp option Document scan width LETTER...
Page 105 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions #1 SSSW SW11 (service soft switch 11: Dual-line function settings) Function 0 (New) Enable Access Codes Not used Not used Not used Not used Not used Not used Not used [Bit 0] When the dual-line upgrade kit II is installed, you can select whether to specify the lines used for calling.
Page 106 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions #1 SSSW SW28 (service soft switch 28: V.8/ V.34 protocol settings) Function 0 (New) Caller V.8 protocol 1 (New) Called party V.8 protocol 2 (New) Caller V.8 protocol late start 3 (New) Called party V.8 protocol late start 4 (New) V.34 reception fallback Prohibited Not prohibited...
Page 107 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions #2 MENU Function Selection range Default setting V.34 max. baud rate 2400~3429 3429 (3429 baud) V.34 max. transmission speed 2.4~33.6 33.6 (33600 bps) [No. 008] Select the maximum baud rate for V.34 transmission: 3429, 3200, 3000, 2800, 2743, and 2400.
Page 108 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions #3 NUMERIC PARAM. (numeric parameter settings) Function Selection range Default setting T0 Timer 0~9999 5500 (55 second) T1 Timer (Rx) 0~9999 3500 (35 second) Maximum time to receive 500~3000 1320 (13.2 second) one line of image data [No.010] The “wait time after transmission of a dialing signal ends until a significant signal is detected in transmission”...
Page 109 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions #7 PRINTER Service soft switch settings SW04 (switch 04: reduction/cassette selection settings) Function 0 (New) When LTR/LGL specification is received by DCS, the cassette is selected according to the specification. Not used Not used Not used Not used Not used...
Page 110 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3.4 Test Functions This fax functions for testing individual operations, such as below. 3.4.1 Test mode overview Test mode can be executed by following the menu items from the display. a) DRAM tests Writes data to DRAM image storage areas and reads that data to check operations.
Page 111 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3.4.2 Test mode flowchart To operate the test mode, after pressing the Data registration button, press the # button and select “SERVICE MODE”. After this, select “TEST MODE” with the buttons, and press the Set button. To end test mode, press the Stop button followed by the Clear button.
Page 112 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions [8] MODEM NCU 2 [1] RELAY [2] FREQ (For details, refer to [4] MODEM NCU.) [4] G3 Tx (For details, refer to [4] MODEM NCU.) [5] DTMF Tx TEST [8] V34 G3 Tx TEST (For details, refer to [4] MODEM NCU.) Figure 2-42 Test Mode (2/2) 2-58...
Page 113 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3.4.3 D-RAM tests Pressing the numeric key 1 from the test mode menu selects the D-RAM tests. D-RAM Test 1 writes data to the entire D-RAM region and reads it out to check that operations are correct.
Page 114 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3.4.4 Print test a) Test mode print test The Print Test menu is selected by pressing the numeric key 3 from the test mode menu. In this test, various print patterns are output from the printer. As service print patterns, press the numeric key 2 from the Print Test menu to select “3-2: BLACK”...
Page 115 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3.4.5 Modem and NCU tests These tests test modem and NCU transmission and reception. The modem tests check whether signals are sent correctly from the modem by comparing the sound of the signals from the speaker with the sounds from a normal modem. Also, you check on the display whether or not the modem correctly detected received tone signals and DTMF signals.
Page 116 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions b) G3 signal transmission test The G3 signal transmission test menu is selected by pressing the numeric key 4 from the MODEM NCU test menu. The G3 signals below are sent from the modem using the modular jack and the speaker.
Page 117 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions c) Tonal and DTMF signal reception tests The tonal and DTMF signal reception test is selected by pressing the numeric key 6 from the MODEM NCU test menu. In these tests, you can check whether the tonal signals and DTMF signals received from the modular jack are detected by the modem.
Page 118 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions d) V.34 G3 signal transmission test The V.34 G3 signal transmission test menu is selected by pressing the numeric key 8 from the MODEM NCU test menu. The V.34 G3 signals below are sent from the modem using the modular jack and the speaker by pressing the Start/ Scan button.
Page 119 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3.4.6 AGING test If the numeric key 5 is pressed in the test mode menu, the AGING test is selected. In this test, the contact sensor LED is lit, and the document read motor driven in fine mode.
Page 120 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 3.4.7 Faculty tests The faculty tests are selected by pressing the numeric key 6 from the test mode menu. These tests test the following faculties of this fax. Test type Overview Sensor tests Test whether the sensors are operating correctly.
Page 121 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 6-3 : SENSOR [1] - - - [6] Pressing the 1 key. DS of DES of DWS A4 CMS on DFS of DS : Document sensor on/of: document/no document DES : Document edge sensor DWS: Document width sensor CMS : Cam sensor DFS : Document feed sensor...
Page 122 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions a-1) Toner sensor test check method Use the following methods to test “TN on”, and “TN of”. • "TN on" check (1) Open the printer cover. (2) Insert a cartridge containing toner into the fax. (3) Close the printer cover.
Page 123 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions (3) Close the printer cover. If the printer cover is closed without a cartridge being inserted, there will be no “TN of ” display, and this will not count as a sensor malfunction. If the printer cover sensor lever is pressed while the cartridge sensor lever is being pressed, high voltage will be applied to the high voltage terminals.
Page 124 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions c) Operation panel tests The operation panel test is selected by pressing the numeric key 7 from the faculty test menu. In this test, check that the display, LED lamps, buttons and the sensors of one-touch speed dialing panel on the operation panel are operating correctly.
Page 125 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions When all the characters displayed have gone out, the system next starts the one-touch speed dialing button test. The letters a to y are displayed, corresponding to one-touch speed dialing button 1 to 25. Each letter displayed goes out when its corresponding one-touch speed dialing button is pressed.
Page 126 LASER CLASS 3170/3175/3175MS Chapter 2: Operating Instructions 6-7:OPERATION PANEL Press Start/Scan button. HHHHHHHHHHHHHHHHHHHH H pattern displayed HHHHHHHHHHHHHHHHHHHH Press Start/Scan button. All LCD dots displayed Press Start/Scan button. 6-7:OPERATION PANEL All LED lamps light up. LED TEST Press Start/Scan button. ∗ 1 2 3 4 5 6 7 8 9 When a button is pressed, the corresponding character goes out.
Page 127 Chapter 3 Technical Reference...
Page 128 500 sheets, for a total of 600 sheets. Paper Cassette 2, available as an option for the LASER CLASS 3170 and standard for the LASER CLASS 3175/3175MS, holds another 500 sheets for a total of 1100 sheets. All cassettes and the MP tray can be adjusted to fit a variety of standard paper sizes, and are easy to access and re-fill.
Page 129 I is a standard feature for LASER CLASS 3175MS. •Printer options The Canon Envelope Feeder, the Duplex Unit, the Canon Adobe PostScript 3 Module I, the Ethernet Board EB-52 FX, and the Flash ROM Module are available as printer options for the LASER CLASS 3175MS, and for the LASER CLASS 3170/3175 with Printer Board I installed.
Page 130 •Automatic PDL switch This printer supports the Hewlett-Packard PCL6 printer language. It can also support the Adobe PostScript 3 by installing the optional Canon Adobe PostScript 3 Module I. It automatically switches PDL between PCL and PostScript according to the received data.
Page 131 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 1.2 Configuration and Structure 1.2.1 Product names LASER beam printing type G3 facsimile LASER CLASS 3170/3175/3175MS 1.2.2 External view PAPER FEED UNIT (PF-52) (Standard with the 20” (508 mm) ® LASER CLASS 3175/ 3175MS, optional for 28.1”...
Page 132 • Installation Completion Card • CD-ROM (Printer Driver) • End User License Agreement (PCL Board) • Leaflet for Font Manager *1*2 • Paper Feeder Unit PF-52 • Paper Cassette 1 *1*2 • Paper Cassette 2 LASER CLASS 3175MS only LASER CLASS 3175 only...
Page 133 19.72" (W) × 20.78" (D) × 18.39" (H) (501mm × 508mm × 467mm) (LASER CLASS 3170) 19.72" (W) × 20.78" (D) × 23.15" (H) (501mm × 508mm × 588mm) (LASER CLASS 3175/3175MS) Not including handset, paper tray Weight Approx. 57.32 lbs (26 kg) (LASER CLASS 3170) Approx.
Page 134 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 1.3.2 Communications specifications Applicable lines Analog line (one line) • PSTN (Public Switched Telephone Network) Handset (Option) Handset with no numeric buttons Transmission method Half-duplex Transmission control protocol ITU-T V.8 protocol V.34 protocol/ECM protocol ITU-T T.30 binary protocol/ECM protocol Modulation method G3 image signals...
Page 135 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Canon express protocol CEP1 Time required for transmission protocol Post-message Post-message Pre-message Protocol Protocol Mode Protocol (between pages) (after pages) V.8 / V.34 Approx. 6 s Approx. 1 s Approx. 1 s T.30 Standard Approx.
Page 136 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 1.3.3 Scanner section specifications Type Sheets Sheet dimensions Width 10.98" × length 39.4" Maximum (Width 279mm × length 1m) Width 5.83" × length 5.04" Minimum (Width 148mm × length 128mm) Thickness Multiple pages from 0.002"...
Page 137 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Copy resolution 16 dots/mm × 15.4 line/mm (Interpolated) Memory copy Scanning density adjustment Lighter, Standard, Darker: The density level of each mode can be selected by the user data. Scanning density adjustment is only valid in binary image mode. NOTE Image modes Binary...
Page 138 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Scanning range Item Letter Legal Effective 8.19"±0.004" 8.43"±0.004" 8.43"±0.004" 10.00"±0.004" (208 ±0.1 mm) (214 ±0.1 mm) (214 ±0.1 mm) (254 ±0.1 mm) scanning width Effective 11.54"±0.16" 10.84"±0.16" 13.84"±0.16" 14.17"±0.16" (293 ±4.0 mm) (275.4±4.0 mm) (351.6±4.0 mm) (360.0±4.0 mm) scanning length (Fine, Superfine) Effective...
Page 139 Approx. 100 sheets LOWER tray Approx. 100 sheets Printing method Laser beam printer Printing cartridge Product name Canon FX6 Toner Cartridge Product code H11-6431 Strage conditions Temperature From 32.0°F to 95.0°F (0°C to 35°C) Humidity From 35% to 85% RH Valid period 2.5 years from date of manufacture displayed on carton.
Page 140 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Recommended recording paper Canon Copier LTR/LGL Premium Paper Weight 75 g/m Paper size Letter, Legal Manufactured by BOISE CASCADE KANGAS Weight 80 g/m Paper size Manufactured by KANGAS NEUSIEDLER Canon Paper Weight 80 g/m...
Page 141 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Printing range Item Letter Legal Effective printing width 8.01 8.24" 8.24" (203.5 mm) (209.4 mm) (209.4 mm) 11.34" ±0.12" 10.65" ±0.12" 13.65" ±0.14" Effective printing length (288.0 ±3.0 mm) (270.4 ±3.0 mm) (346.6 ±3.6 mm) 0.08"...
Page 142 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 1.3.5 Functions FAX/TEL switching None Answering machine connection None Polling Polling transmission The document is accumulated into memory ahead of time, then transmitted when there is a polling request from the other party. Polling reception Receives from a fax in automatic transmission mode One touch locations...
Page 143 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Auto dialing Telephone number digits Max. 39 digits One-touch dial Max. 72 Coded speed dial Max. 128 Group dial Max. 199 (One-touch: 71, Coded speed dial: 128) Redial Numeric button redial function (max. 120 digits) Delayed transmission Locations Max.
Page 144 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Activity management a) User report Activity management report (Every 40 transactions : Can be separated into Tx and Rx) Activity report (sending / receiving) 1-touch spd dial list Coded speed dial list Group dial list Memory clear list User’s data list Multi activity report...
Page 145 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Memory backup Backup contents dial registration data, user data, service data, time 512 kbit SRAM (256 kbit SRAM × 2) Backup IC Backup battery Lithium battery 3.0 V DC / 560 mAh Battery life Approx.
Page 146 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 1.4 Printer Specifications (LASER CLASS 3175MS only) Printing resolution 600/1200 dpi Printing speed (*1) Approx. 17 pages/min. (Letter, 600 dpi), about 8.5 pages/min. (Letter, 1200 dpi) Approx. 16 pages/min. (A4, 600 dpi), about 8 pages/min. (A4, 1200 dpi) First print time (*2) 15.2 sec.
Page 147 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Paper sizes 98.4mm (W) × 190mm (L)(min.) ~ 216mm (W) × 356mm Multi-purpose tray (L) (max.) size plain paper (60g/m ~ 128g/m recommended paper), above-mentioned paper Cassette1 Letter, Legal, and A4-sized plain paper (60g/m ~ 105g/m recommended paper), recycled paper, colored paper Cassette2...
Page 148 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2. THEORY OF OPERATIONS 2.1 Product Overview 2.1.1 Fax main unit This fax operates on ordinary AC120V household current, and has fax, telephone, and copy functions. The communication functions include 33.6k bps G3 transmission with ECM, contact scanner scanning with an ADF (auto document feeder) that can consecutively transmit multi-page documents, and a LASER beam printer that can print on plain paper.
Page 149 The image memory can be expanded by installing 4MB memory boards. Two memory boards can be installed in the fax machine. A 4MB memory board is preinstalled in the LASER CLASS 3175/3175MS. g) Verification stamp unit The verification stamp unit stamps a check mark near the trailing edge of the scanning side of each document to verify that all documents are transmitted correctly without any errors, such as double feeding.
Page 150 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Main unit LASER CLASS 3170 LASER CLASS 3175/3175MS Option Cassette feeder (lower) DUPLEX UNIT DU-52 ENVELOPE FEEDER EF-52 DUAL-LINE UPGRADE KIT II (PAPER FEED UNIT PF-52) OPTION MEMORY VII (4MB) HANDSET KIT L7...
Page 151 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.2 Mechanical Overview The mechanical section of this fax comprises the scanner section, the pickup section, and the printer section. 2.2.1 Unit layout diagrams a) Scanner section The scanner section has an ADF (auto document feeder) function and can automatically feed 50 sheets of A4 or letter size documents (20 sheets of B4 or legal size documents).
Page 152 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Document path Scanner Section Printer Section Paper pickup Section Recording paper path Figure 3-5 Paper Path 3-25...
Page 153 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.2.3 Drive system layout a) Scanner section The power of the document read motor is transmitted by belt and gear to drive the pick-up, separation, feed, and eject rollers. The rotation of pick-up roller is controlled by a cam, DC motor and separation roller arm.
Page 154 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Read motor Separation roller (Upper) Main motor Multi-purpose tray pickup solenoid Multi-purpose tray pickup roller Document feed roller Document eject roller DC motor Pressure roller Cassette pickup roller Separation roller (Upper) Separation roller (Lower) Pick-up roller Document eject roller Read motor...
Page 155 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.2.4 Electrical system layout a) Board layout a-1) SCNT board The SCNT board, which contains the system controller which controls the entire fax, is attached to the right side of the main unit. a-2) NCU board The NCU board, which controls the telephone line, is attached to the right side of the main unit behind the SCNT board.
Page 156 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference ECNT board Power supply unit NCU board OPCNT board Sensor board Paper size detection boards SCNT board TWINS board Modular board Sensor board OPCNT board ECNT board Power supply unit Paper size detection board 1 Paper size detection board 2 TWINS board SCNT board...
Page 157 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b) Sensor layout b-1) Contact sensor This contact sensor (CS) horizontally scans documents up to B4 size 10.00" (254 mm) at a horizontal scanning resolution of 8 dots/mm. b-2) Document sensor (DS) This sensor, which detects the presence/absence of a document, is attached to the ADF section (Upper reader frame unit) sensor board.
Page 158 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b-12) Recording paper eject sensor 1 This sensor, which detects whether or not the recording paper has been fed as far as the fixing unit, is attached to the ECNT board. b-13) Recording paper eject sensor 2 This sensor, which detects whether or not the recording paper has passed through the fixing unit, is attached to the fixing unit.
Page 159 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Document width sensor Document feed sensor Document sensor Document edge sensor Recording paper overload sensor 2 Printer cover sensor Recording paper overload release sensor Pre-feed sensor Recording paper overload sensor 1 Multi-purpose tray paper sensor Recording paper eject sensor 2 Recording paper eject sensor 1 Top of page sensor...
Page 160 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.3 Scanner Section The scanner section comprises the document feed section and the optical section. 2.3.1 Document feed section a) Document feed function a-1) ADF (auto document feed) function The ADF feeds up to 50 pages of documents placed on the document feeder tray, separates each page with the separation roller (upper) and separation roller (lower), passes the page over the contact sensor unit, then ejects the...
Page 161 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Separation roller(upper) Pick-up roller Document path Separation roller(lower) Document feed roller Document eject roller Contact sensor Figure 3-9 Document Feed Section 3-34...
Page 162 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Document stopper movement (1) When documents are set (Fig. A) The document stopper on the ADF section (Upper reader frame) stops the document which is inserted into the document NOTE insertion opening, preventing it from being pushed in too far. (2) When the stopper goes up (Fig.
Page 163 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Figure 3-10 Stopper Movement 3-36...
Page 164 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b-2) Document jam detection The document edge sensor detects such document jams as pickup jams and document too long errors. A “pickup jam” means the document edge sensor cannot detect the leading edge of the document within 15 seconds after document feeding begins. A “document too long error”...
Page 165 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.3.2 Optical section a) Functions a-1) Document scanning For document scanning, the Contact Sensor (CS) horizontally scans documents up to B4 size 10.00" (254mm) at a horizontal scanning resolution of 8 dots/mm (Standard, Fine and Superfine) or 16 dots/mm (Ultrafine). Vertical scanning resolution is fixed by selecting resolution button on the operation panel.
Page 166 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b) Structures b-1) Contact sensor The contact sensor is designed to be dust-free, so that dust and other such minute particles cannot find their way inside the contact sensor housing, to settle on the sensor surface. The contact sensor consists of an LED array that emits light for scanning, a lens that distributes light from the LED array uniformly in the horizontal direction, a contact glass that refracts the light to the document, a rod lens...
Page 167 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Rod rens array Document I n c i d e l i g h Scanning glass Rod rens array Incident light Contact sensor Scanning glass logic board Document Contact sensor logic board Photo transistor Figure 3-11 Contact Sensor 3-40...
Page 168 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.4 Paper Load Section a) Functions a-1) Recording paper pickup function (From multi-purpose tray) In case of paper pick-up from the multi-purpose tray, while the main motor rotates, the multi-purpose tray pick-up solenoid is turned ON. Then, the multi-purpose pick-up roller rotates, and a sheet of paper is fed into the printer section.
Page 169 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b) Structures b-1) Cassette paper loading In case of paper pick-up from the cassette, while the main motor rotates, the pick-up solenoid (SL101) is turned ON. Then, cassette pick-up roller, cassette feed roller, separation roller and feed rollers rotate, and a sheet of paper is fed into the fax.
Page 170 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Paper pickup roller Feed roller Feed roller Separation roller Feed roller Separation roller Spring Paper Lifting plate pickup roller Figure 3-12 Cassette Paper Loading 3-43...
Page 171 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b-2) Recording paper pickup jam detection configuration Recording paper pickup jams are detected by the photo-interrupter type recording paper pickup sensor equipped with an actuator arm. There are the following two types of recording paper pickup jams. Recording paper pickup jam 1 a.
Page 172 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b-3) No recording paper detection configuration The presence of paper on the multi-purpose tray is detected by the multi- purpose tray paper sensor (PS105). No recording paper processing When a no recording paper error occurs in the side cassette, the main motor drive is stopped, print operations are stopped, the error is displayed on the display, and the Rec.
Page 173 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Paper size SW601 SW602 SW603 No cassette LEGAL LETTER SW600 SW601 SW602 Figure 3-13 Paper Size Detection Configuration (Paper feeder) Paper size SW802 SW801 SW803 No cassette LEGAL (Available for printer function.) Executive LETTER (Available for printer function.) Other...
Page 174 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.5 Printer Section The LASER beam printer engine comprises the following sections. Laser/Scanner unit Mirror Toner cartridge Fixing unit Feed belt ECNT board Transfer charging Feed roller roller Figure 3-15 Printer Section For details on the print process, see the FACSIMILE BASIC•INTER SUPPLEMENT 2 (Rev.
Page 175 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.5.1 Paper feed/eject section a) Functions a-1) Paper feed/eject The feed section feeds the recording paper fed from the pickup section to the toner transfer section and fixing unit. The eject section ejects the paper from the recording paper eject outlet on the main unit after printing.
Page 176 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Pre-transfer roller Photosenstive drum Feed belt Fixing eject roller Paper path Pressure roller ECNT board Feed roller Figure 3-16 Paper Feed/Eject Section 3-49...
Page 177 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b-2) Recording paper jam detection configuration Recording paper jams in the paper feed/eject section are detected by the photo- interrupter type pre-feed sensor, top of page sensor, recording paper eject sensor 1 and 2, which is equipped with an actuator arm. The CPU assesses a delivery delay jam if the recording paper eject sensor 1 (PS501) does not detect the leading edge of the paper within the specified period of time (T) after the top of page sensor (PS103) detects...
Page 178 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.5.2 LASER/Scanner section a) Fanctions TWINS ECNT SCNT board board board Scanner motor Scanning mirror /ACC Focusing lens /DEC Mirror Cylindrical lens BD mirror Laser driver /TOP /VDO HALF /LON /ENBL /VDO /BDI Figure 3-17 LASER/Scanner Section The VIDEO signal (nVDO) is sent from the SCNT board to the laser driver of the laser/scanner unit through the TWINS board and ECNT board.
Page 179 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b) Automatic power control of laser diode The laser driver IC conducts the automatic power control (APC) of the laser diode so that the laser diode emits a beam of constant intensity. When the FORCED LASER ON signal (nLON) becomes “L,” or the VIDEO DATA ENABLE signal (nENBL) and nVDO signal become “L,”...
Page 180 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.5.3 Toner cartridge a) Functions Laser beam Primary charging roller Drum protective shutter Blade Developing cylinder Cleaner blade Photosensitive drum Figure 3-18 Toner Cartridge The image formation system is the central hub of the fax, and consists of the photosensitive drum, developing unit, charging rollers, etc.
Page 181 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b) Electrostatic latent image formation block This block follows two steps to produce an electrostatic latent image on the photosensitive drum. When “Laser beam exposure” of this block is completed, negative charge remains in the unexposed “dark” areas; however, those in the exposed “light” areas are eliminated.
Page 182 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b-2) Laser beam exposure Laser beam Unexposed area Exposed area Figure 3-21 Laser Beam Exposure When the laser beam scans the drum surface, it causes the charges in the areas struck by the laser beam to be neutralized. These areas on the drum surface form the electrostatic latent image.
Page 183 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference As shown in Figure 3-23, the developing unit consists of a fixed magnet, a developing cylinder and a rubber blade. The developing cylinder rotates around the fixed imagnet. The single-component toner consists of magnetite and a resin binder, and is held to the cylinder by magnetic attraction.
Page 184 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference d-1) Drum cleaning Cleaner blade Photo- sensitive drum Waste toner case Sweeper strip Figure 3-24 Drum Cleaning The residual toner on the drum surface is scraped away with the cleaner blade to clean the drum surface in preparation for the next print. The removed waste toner is collected into the waste toner case.
Page 185 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference • The high-voltage terminal of the toner cartridge is shown below. High voltage terminal Figure 3-25 High Voltage Terminals • The AC bias applied to the developing cylinder during development is about 1600 Vp-p. •...
Page 186 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.5.4 Transfer/Separation section In this block, the toner image is transferred from the drum surface to the paper. a) Transfer Photo- sensitive Paper drum Transfer charging roller Figure 3-26 Transfer Positive charges are applied to the back of the paper to attract the negatively charged toner particles to the paper.
Page 187 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.5.5 Fixing section As the toner image transferred onto the paper in the transfer block is only adhered by electrostatic attraction, even a light touch will smear the image. In the fixing block, the toner image is fixed by applying heat and pressure to the paper and the toner.
Page 188 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference • This fax machine does not have "-ACVIN signal". • If the ECNT board CPU detects with the thermistor that the fixing heater temperature is over 428°F (220°C), it cuts off the power to the fixing heater (Software protection).
Page 189 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 5. When the thermistor is in the high temperature detection mode and the initial temperature is 185°F(85°C) or more, it does not exceed about 320°F(160°C) (about 284°F(140°C) in case of 1200DPI) within about 6 seconds after the heater is turned ON.
Page 190 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.6 Circuit Overview 2.6.1 SCNT board function block diagram Dual-line upgrade kit II Printer board I J S1 J700 J701 ECNT board TWINS board Power supply unit CONTACT SENSOR Cam motor Cam sensor Document SCNT board feed motor...
Page 191 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.6.2 Functions a) SCNT board The SCNT board performs the following functions. Drive control The drive control section controls the document feed motor in the document scanning section. Operation panel control The operation panel control section serially transfers data to or from the control IC on the OPCNT board, receives button operation status, document status, etc., and sends the display and LED signals to the control IC on OPCNT board.
Page 192 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Memory functions User data, service data, data registered before shipment from the factory, and communications management information, are stored to the SRAM. Image data are stored to the DRAM. Memory backup The SCNT board is provided with a function for backing up data in control/ image processing memory (SRAM) and image storage memory (DRAM) by lithium battery, and rechargeable battery, even if a power interruption occurs, or the power cord is disconnected by accident.
Page 193 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference d) OPCNT board Buttons detection and LED drive function The control IC on the OPCNT board detects the buttons operation status, and drives the LCD and LEDs. Display The control IC in the LCD module controls the 20-column × 2-line LCD according to the display signals from the SCNT board.
Page 194 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.6.3 ECNT board function block diagram SCNT board Paper size detection board 2 Paper sensor paper size paper size paper size Paper pickup detection detection detection TWINS board switch(sw800) switch(sw801) switch(sw802) solenoid J801 J601 Paper size detection board 1 Paper...
Page 195 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.6.4 Functions a) ECNT board Fixing heater control The fixing heater control section monitors the DC voltage supplied from the power supply in response to the AC 85~132 V, and the fixing heater thermistor, and drives the heater so that the temperature reaches the specified level.
Page 196 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference unit is detected, and the scanner motor rotation status monitored. Toner detection Signals are received from the antenna type toner sensor, and monitors the remaining toner of the toner cartridge. b) Paper size detection board 1 Sensors The cassette recoding paper size sensor (SW600,601,602), and cassette recording paper sensor for cassette1 are attached to the paper size detection...
Page 197 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.6.5 SCNT board component block diagram Sensor board Document feed Address bus sensor Cam sensor Data bus Control Signal etc. Document sensor Cam motor Document edge sensor SCNT board Lithium RESET Document width sensor battery IC16 IC22...
Page 198 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference a) System control section (SCNT board) The system control section consists of the following components and controls the entire facsimile system. a-1) MPU (Micro Processor Unit) (IC 17) The MPU, on NEC UPD70741GC-25-7EA, has the following main functions. •16-bit CPU •24-bit address bus •16-bit data bus...
Page 199 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference a-4) DRAM (IC 3, 31) This 16-Mbit DRAM is backed up by rechargeable battery (approx. 12 hour after AC power interruption), and is used as memory for storing image data and MPU work area. a-5) SRAM (IC 5, 6) These 256-kbit SRAMs are backed up by lithium battery.
Page 200 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b-2) CODEC IC (IC 22) The main functions of the CODEC IC are as follows: •Scanner interface Serial interface to image processing IC •Encoder •Decoder •Printer interface Serial interface port for the SCNT printer interface b-3) SRAM (IC 21) A 256-kbit SRAM is used as a buffer for the image processing data.
Page 201 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.6.6 ECNT board component block diagram Printer board I SCNT board Cooling fan Power supply AC IN TWINS board Duplex 2bin solenoid Duplex pickup Face-up Reverse exhaust fan sensor sensor paper sensor Main motor Multi-purpose sensor ECNT board...
Page 202 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference a) Printer control section (ECNT board) The printer control section consists of the following components and controls the LBP printer. a-1) Single chip microcomputer (IC 501) The single chip microcomputer has the following main functions. •8-bit CPU •24k-byte ROM •512k-byte RAM...
Page 203 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 2.6.7 Flow of image signals a) G3 memory transmission (1) The image is scanned by the contact sensor, and the analog image data is sent to the SCNT board. (2) The image processing IC (IC20) converts the analog image data from the contact sensor into digital data.
Page 204 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference CONTACT SENSOR IC20 IC22 IC17 IC26 SCNT board A:Image processing IC B:CODEC IC C:DRAM D:MODEM IC NCU board E:System control IC F:Main CPU Figure 3-33 Transmission 3-77...
Page 205 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b) G3 reception (1) The received image signal by L1, L2 is passed through a 2-line - 4-line conversion circuit in the NCU board, and amplified. The encoded data received by the MODEM IC (IC26) is read out by the CPU and then it is written into the DRAM (IC3) reception buffer by the CPU.
Page 206 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference IC22 Print out IC18 IC17 IC26 SCNT board A:Image processing IC B:CODEC IC C:DRAM D:MODEM IC E:System control IC NCU board F:Main CPU Figure 3-34 Reception 3-79...
Page 207 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 3. NEW FUNCTION 3.1 High-speed Transmission The image transmission time is reduced drastically compared with the previous models by the V.34 modem (maximum transmission speed 33600 bps) recommended by ITU-T. 3.1.1 V.8/ V.34 protocol a) Outline •...
Page 208 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 1. The V.34 protocol uses ECM. If the ECM SW in user data is set to OFF, the V.8 protocol is not executed. Therefore, the V.34 protocol is not used, and V.17 or a lower protocol is selected. NOTE 2.
Page 209 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b) Typical protocol Declares the usable modulation Connected to the line mode. Network interaction Declares that V.34 capability exists ANSam (Phase 1) on each machine, and transfers the V.34 procedures with phase 2. INFO0c INFO0a After declaring the modem's...
Page 210 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b-1) Network interaction (Phase 1) The V.8 protocol is used as the startup protocol for high-speed modem V.34. The V.8 protocol determines the best modulation method (V-series modem mode) that is available between the transmitter and receiver. •...
Page 211 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b-2) Probing (Phase 2) The line characteristics are measured and modulation-related parameters, such as symbol rate, are set. • Transmitter Abbre- Signal viation Meaning Remarks Indicate modem capa- Transmission INFO sequence INFO0c bilities, such as baud speed: 600bps rate and frequency transmission function...
Page 212 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b-3) Primary channel equalizer training (Phase 3) Filters, such as equalizers, are trained (adjusted) with the parameters set in phase 2. • Transmitter Abbre- Signal viation Meaning Remarks S signal Short training The phase of S is shifted from the phase of S.
Page 213 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b-5) Control channel The conventional T.30 protocol is executed. The transmission speed is 600bps. • Transmitter Abbre- Signal viation Meaning Remarks Flag flags Maintain synchronization. 7E (H) Non-standard Receive NSF from the facilities set-up other party, select an available mode from it, and instruct reception.
Page 214 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b-6) Primary channel resyncronization procedure Training is performed with the parameters set in phase 4. The transmission speed is 1200bps. • Transmitter Abbre- Signal viation Meaning Remarks S signal Short training The phase of S is shifted from the phase of S.
Page 215 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b-8) Control channel resyncronization procedure (Communication end procedure) Protocol for terminating transmission. The transmission speed is 1200bps. • Transmitter Abbre- Signal viation Meaning Remarks Sh signal Short training Sh signal ALT signal ——— E sequence ———...
Page 216 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference c) Examples of sequences The signals in the shaded areas are important in the protocol. c-1) Late start Since the receiver cannot detect the CM signal while sending the ANSam signal, it sends the DIS signal containing the "V.8 protocol" declaration. The transmitter sends the CI signal to request the receiver to send the ANSam signal again to move to V.8 protocol.
Page 217 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference c-2) Between-page sequence The transmitter sends image data, then the PPS-MPS signal in the same as for the T.30 protocol. The receiver sends the MCF signal to receive the next page. Image data Turn-off PPS-MPS flags...
Page 218 DIS signal and the transmitter sends the DCS signal to change the mode. Image data Turn-off PPS-EOM flags flags When Canon fax flags machines communicate with each other, a special procedure is used, so this protocol is omitted. flags flags flags "1"...
Page 219 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference c-4) Image transmission speed change from the receiver The receiver returns to the PPh signal in response to the Sh signal from the transmitter. The image transmission speed is then determined by the MPh sequence sent from both modems.
Page 220 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference c-5) Image transmission speed change from the transmitter The transmitter sends image data, and then the PPh signal, and the receiver returns the PPh signal to the transmitter. The image transmission speed is then determined by the MPh sequence sent from both modems.
Page 221 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 3.2 JBIG Image Compression Encoding Method 3.2.1 Outline of the JBIG Image Compression Encoding Method The JBIG Image Compression Encoding Method is recommended in ITU-T T.82/ T.85 as a new bi-level (bi-level: White and Black) image compression encoding method developed by JBIG (Joint Bi-level Image experts Group).
Page 222 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference The characteristics of Progressive Bi-level Image Compression are explained below as a reference. First of all, after the original image has been read in at high resolution, it is converted to low resolution, and this low resolution image data proceeds to be NOTE encoded (compressed).
Page 223 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 3.2.3 Encoding Method In the JBIG encoding used in the Single Progression Sequential Bi-level Image Compression Method, uses in the encoder shown below to encode to the original the results of comparison of the line currently being processed and the previous line, as well as the predicted value of an image pixel (white or black) used in a model template.
Page 224 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference b) In the model template, the combination (10-bit pixel pattern) of 10 pixels is output to the arithmetic encoding section using the template shown below (inside the bold outline). All of the 10-bit pixel patterns inside this template exist in the study table. This 10-bit pixel pattern is used by the arithmetic encoding section to refer to the predicted value of the pixel and the status number in the study table which correspond to the 10-bit pixel pattern.
Page 225 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 3-line model template 2-line model template Figure 3-44 Positions of Pixels in Model Template Table 3-1 Study Table (Initial values) Predicted Status No. Pixel pattern in the model template value of (ST) pixel 0 (white) 000h 0 (white)
Page 226 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Example: A brief explanation of how the study table works is given below. It is assumed that each of the model template pixels 1~10 in the image below are white. 1. In this case, the model template pixel pattern is 000h. 2.
Page 227 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference d) The probability estimation table, published in the ITU-T T.82. Its contents are fixed, differing from those of the study table. This table shows probability of accuracy/inaccuracy in the form of a range, according to the accurate/inaccurate results of a given status prediction value.
Page 228 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference The concept of arithmetic encoding is simply explained below. The following assumptions are made in order to make the explanation easy to understand. The probability of accuracy will be 50%, and the probability of inaccuracy will be 50%.
Page 229 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference Next, the encoding for continuos accurate predictions will be simply explained. The assumptions below will be made for easy understanding. The value of an accurate LSZ will be decimal 100 in all statuses. Range A will have limits of decimal 8000~10000 , and when range A is below decimal 8000...
Page 230 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 3.2.4 Construction of image data with JBIG Image Compression Encoding Images are encoded in block units called stripes, as shown in the figure below. Document width (XD) Header Floating marker code Stripe Stripe length (L0) Floating marker code Stripe...
Page 231 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 3.2.5 Explanation of Bi-level Image Header section (BIH) The BIH is shown in the construction figure below. It designates the image size, number of lines per stripe, model template, etc. BIH (Bi-level Image Header) FILL Orber Option...
Page 232 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 3.2.6 Explanation and parameters for each symbol used in BIH The 0x of each parameter shows that the following integers are hexidecimal. Symbol Meaning Parameter Reference Initial layer to be transmitted 0x00 fixed Number of differential layers 0x00 fixed Number of bit planes...
Page 233 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 3.2.7 Explanation of Bi-level Image Data (BID) section BID is as shown in the construction figure below, and consists only of the number of stripes. BID is constructed by the connection of the floating marker code and the section which includes the actual image data encoded with JBIG image compression encoding, called SDE (Stripe Data Entity).
Page 234 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference COMMENT (Private comment: 0x07) An optional comment may be added. ESC 0x07 Lc:Comment length NEWLEN (New length: 0x04) Redefine the document length. Only usable when VLENGTH=ON. ESC 0x04 YD:Document length RESERVE (Reserve: 0x01) Only usable for characteristic use.
Page 235 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference 3.3 Energy Save Standby (ESS) (LASER CLASS 3170/3175 only) a) Function ESS is an energy save function for minimizing power loss during standby. During ESS, the ESS control section of the system control IC inside the SCNT board halts all oscillators other than the real time clock (RTC) IC in order to reduce power loss.
Page 236 LASER CLASS 3170/3175/3175MS Chapter 3: Technical Reference The power consumption at standby is 20 W in non-ESS mode and 15 W in ESS mode. The ESS function does not operate when the Dual-Line Upgrade NOTE Kit II is installed. b) Operation The ESS function sets the main unit to the ESS mode if the next operation is not carried out within about three minutes after the main unit ends transmission, reception, or copying.
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Page 238 Chapter 4 Maintenance and Service...
Page 239 1. MAINTENANCE 1.1 Maintenance Items 1.1.1 Consumables Level Consumable When User Canon FX 6 Cartridge When “INSTALL CARTRIDGE” is displayed or when toner has run out. Stamp ink When the stamp becomes thin. Recording paper When paper runs out. Service technician Separation roller...
Page 240 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service KANGAS Weight 80 g/m Paper size Manufactured by KANGAS NEUSIEDLER Canon Paper Weight 80 g/m Paper size Manufactured by NEUSIEDLER Consumable parts are expected to require replacement at least once during the warranty period of this fax, due to deterioration or damage.
Page 241 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 1.1.2 Cleaning Level Location When User Main unit outer cover When dirty. Document pick-up When document pick-up roller performance fails. Document separation When document separation or feed roller (upper) performance fails. Document separation When document separation or feed roller (lower) performance fails.
Page 242 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service Level Location When Service technician Multi-purpose tray When recording paper pick-up pick-up roller performance fails. Cassette pick-up When recording paper pick-up roller performance fails. Cassette separation When recording paper separation roller or feed performance fails. When marks at intervals of 2.97"...
Page 243 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service Level Location When Fixing pressure roller When marks on back of recording paper at intervals of 2.48" (63 mm), poor fixing, paper jam, or wrinkles in printed-out. Fixing eject roller When recording paper jam. Face-up deflector When recording paper jam.
Page 244 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 1.2 Tools 1.2.1 General tools Tool Phillips screwdriver Removing/inserting screws Slot head screwdriver Removing/inserting screws Precision phillips screwdriver Adjust volume Precision slot head screwdriver Removing plastic tabs Tweezers Removing/inserting coil springs Pliers, needle nose Attaching retaining ring Digital volt meter Check voltage...
Page 245 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 2. CONSUMABLES REPLACEMENT 2.1 Toner Cartridge For details on how to replace the toner cartridge, see Chapter 5: 1.4 Assembling the Fax . REFERENCE 2.2 Recording Paper For details on how to refill the paper, see Chapter 5, 1.4 Assembling the Fax .
Page 246 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 2.3 Stamp Ink 1. Disconnect the power cord of the fax unit from its power source. 2. Lift the document feeder tray, and gently open the ADF cover until it stops, grasping the document feeder tray and the ADF cover at the same time.
Page 247 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 4. Gently lift the ADF cover up to the full open position. Figure 4-2 Refiling the Stamp Ink 2 5. Locate the stamp pad then apply only one drop of ink to the stamp ink compartment.
Page 248 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 6. Close the ADF cover, lower the document feeder tray, and connect the power cord of the fax unit to the power source. • Make sure that you do not drip ink on any other part of the fax. •...
Page 249 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 3. CLEANING 3.1 Main Unit Wipe any dirt off with a soft, dry cloth. 3.2 Document Pick-up Roller Open the upper reader frame unit and wipe any dirt off with a soft, dry cloth. 3.3 Separation Roller (Upper) Open the upper reader frame unit and wipe any dirt off with a soft, dry cloth.
Page 250 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service Document pick-up roller Separation roller (Upper) Document feed roller 1 Separation roller (Lower) Figure 4-4 Cleaning Location 1 White Sheet Document Eject Roller Scanning Glass Document Feed Roller 2 Figure 4-5 Cleaning Location 2 Do not use tissue.
Page 251 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 3.10 Transfer Guide a) Preparations for cleaning (1) Disconnect the power cord of the fax from the power source. (2) Lift the document feeder tray, the document output tray and the upper output tray.
Page 252 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service b) Cleaning (1) Using a soft clean cloth, wipe any paper dust off the black plate of the transfer guide. Transfer guide Figure 4-8 Cleaning Location 1 (2) While holding the green lever, flip the transfer guide up. Wipe the edge of the transfer guide with a soft, clean cloth, to remove toner and paper dust from both sides of the transfer guide.
Page 253 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service (3) Pull the transfer guide back to its full extent, then wipe the silver metal strip with cloth. Then gently guide the transfer guide back to its original position. Transfer charging roller Figure 4-10 Cleaning Location 3 The spring for the transfer guide is strong.
Page 254 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 3.11 Transfer Charging Roller a) Preparations for cleaning (1) Disconnect the power cord of the fax from the power source. (2) Lift the document feeder tray, the document output tray and the upper output tray.
Page 255 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service b) Cleaning (1) Using lint-free paper, wipe any dirt off the transfer charging roller. Hold the shaft. Carefully remove any dirt with lint-free paper. Hold the shaft. Figure 4-12 Cleaning Location Do not touch or hold the rubber section of the transfer charging roller. Doing so can cause marks on back of paper or blank spots in copied or received images.
Page 256 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 3.12 Cassette Pick-Up Roller/Feed Roller/Separation Roller a) Preparations for cleaning (1) Disconnect the power cord of the fax from the power source. (2) Disconnect the telephone line mojular jack cord. (3) Remove the document feeder tray, the document output tray, the upper output tray and the cassettes.
Page 257 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service b) Cleaning (1) Using lint-free paper dipped in alcohol, wipe any dirt off the cassette pick- up roller and the cassette feed roller while rotating the shaft in the indicated direction. Cassette pick-up roller Cassette feed roller Figure 4-15 Cleaning Location 1 (2) If a paper feed unit PF-52 is installed, cleaning the option by the same way...
Page 258 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 3.13 Multi-Purpose Tray Pick-Up Roller/Separation Pad a) Preparations for cleaning (1) Disconnect the power cord of the fax from the power source. (2) Open the multi-purpose tray. (3) Remove the entrance cover. Entrance cover Figure 4-17 Preparation for Cleaning 1 (4) Remove the multi-purpose tray pick-up roller, after release the claw with...
Page 259 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service b) Cleaning (1) Using lint-free paper dipped in alcohol, wipe any dirt off the multi-purpose tray pick-up roller. Multi-purpose tray pick-up roller Figure 4-19 Cleaning Location 1 (2) Using lint-free paper dipped in alcohol, wipe any dirt off the multi-purpose tray separation pad.
Page 260 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 3.14 Feed Roller a) Preparations for cleaning (1) Disconnect the power cord of the fax from the power source. (2) While holding the upper reader frame and the middle reader frame open with one hand, use one finger of your other hand to gently push in the stopper to separate it from the stub on the fax machine, and open the upper reader frame and the middle reader frame.
Page 261 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service (4) Remove the right cover, front right cover, rear cover and the read motor cover. (5) Remove the joint of the printer cover using the needle nose prier and release the claw using the precision slot head screw driver. Then, remove the printer cover.
Page 262 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service (10) Remove the shield cover and the operation panel. Operation panel Shield cover Figure 4-25 Preparation for Cleaning 5 (11) Remove the PCBs and the metal frame. Then, disconnect the solenoid connector. Metal frame Solenoid connector Figure 4-26 Preparation for Cleaning 6...
Page 263 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service (12) Remove the entrance cover. (13) Disconnect the multi-purpose paper sensor cable. Entrance cover Multi-purpose paper sensor cable Figure 4-27 Preparation for Cleaning 7 (14) Remove the two long screws. (15) Remove the one screw of the envelope feeder gear cover. Then, push the claw from the inside and remove the envelope feeder gear cover.
Page 264 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service b) Cleaning (1) After removing the envelope feeder gear cover and the multi-purpose pick- up ass’y, using lint-free paper dipped in alcohol, wipe any dirt off the feed roller while rotating the gear. The gears should always be greased.
Page 265 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 3.15 Pre-Transfer Roller and Registration Arm a) Preparations for cleaning (1) Refer to 3.14 Feed Roller to remove the envelope feeder gear cover and the multi-purpose pick-up ass’y. (2) Remove the six screws. Registration ass'y Figure 4-30 Preparation for Cleaning 1 (3) Remove the front inner cover ass’y.
Page 266 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service b) Cleaning (1) Using lint-free paper dipped in alcohol, wipe any dirt off the pre-transfer roller and registration arm. The gear should always be greased. If the grease is lost, reapply to it. Registration arm Gear Pre-transfer roller...
Page 267 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 3.16 Paper Feed Belt and Paper Feed Guide a) Preparations for cleaning (1) Refer to 3.11 Transfer Charging Roller to remove the transfer charging roller. (2) Remove the paper feed roller using the precision slot head screwdriver. When removing the paper feed roller, do not make contact with the static charge eliminator.
Page 268 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service (2) Using lint-free paper dipped in alcohol, wipe any dirt off the paper feed guide. Paper feed guide Figure 4-35 Cleaning Location 2 4-30...
Page 269 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 3.17 Fixing Unit Entrance Guide a) Preparations for cleaning (1) Disconnect the power cord of the fax from the power source. (2) Remove the right rear cover and the left rear cover. (3) Remove the face-up tray.
Page 270 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 3.18 Fixing Film a) Preparations for cleaning (1) Disconnect the power cord of the fax from the power source. (2) Refer to 3.17 Fixing Unit Entrance Guide to remove the fixing ass’y. (3) While pushing the claw, remove the left fixing ass’y connector.
Page 271 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service (4) Remove the upper crossmember. Upper crossmember Figure 4-40 Preparation for Cleaning 3 b) Cleaning (1) Using lint-free paper, wipe any dirt off the fixing film. Fixing film Figure 4-41 Cleaning Location When cleaning, be careful not to touch the fixing film.
Page 272 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 3.19 Face-Up Deflector, Fixing Delivery Roller and Lower Paper Delivery Guide a) Preparations for cleaning (1) Disconnect the power cord of the fax from the power source. (2) Refer to the Figure 4-36, 4-37 and 4-40 to remove the upper crossmember. (3) Remove the upper paper guide ass’y.
Page 273 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 4. Adjustment 4.1 Parts Replacement Please refer to the separate PARTS CATALOG for disassembly / assembly procedures to follow when replacing parts. The PARTS CATALOG shows illustrations which follow the disassembly procedures. Additionally, there are enlarged and special-help illustrations for parts which require caution during disassembly and assembly.
Page 274 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 4.4 Leading Edge Margin Adjustment a) When As VR501 on the ECNT board is adjusted at the factory, its adjustment at the time of installation is not required. However, when the ECNT board is replaced in the field, the leading edge margin needs to be readjusted.
Page 275 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service (7) Make several test prints again, and perform step (5). Check that the leading edge margin is 2.0mm. If the value is incorrect, repeat steps (4) to (7). VR501 SW501 Clockwise Turning one scale increases the leading edge margin approx.
Page 276 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 5. TROUBLESHOOTING 5.1 Troubleshooting 5.1.1 Repairs a) Check installation environment Check that the following conditions have been met with regard to installation environment. (1) This fax must be installed on a level surface. (2) Ambient temperature should be 50°F (10°C) to 90.5°F (32.5°C), with humidity from 20 to 80%RH.
Page 277 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 5.2 Error Shown on the Display 5.2.1 User error message "# ALREADY IN USE" The box specified with confidential or polling communications is Cause: already in use. Solution: Change the setting or select another box. "AUTO REDIAL"...
Page 278 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service "CHECK POLLING ID" (#0008, #0021) Cause: Polling was impossible because the polling ID or your subaddress/ password did not match. Solution: Check the polling ID or subaddress/password with the other party and try polling again. "CHECK PRINTER"...
Page 279 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service "ENTER DAC" Cause: The department access code is not entered to send document. Solution: Enter the department access code. "HANG UP PHONE" Cause: The handset was left off the hook after the completion of transmission or reception.
Page 280 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service "NO RX PAPER" (#0012) Cause: Declares that the other fax has no recording paper for DIS. Solution: Contact the other party and have them load paper into their fax. "NO TEL#" (#0022) Cause: No one-touch speed dialing, coded speed dialing, or group dialing telephone number is registered.
Page 281 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service "REC. PAPER JAM" (#0009) Cause: Recording paper jam This is displayed when the pre-feed sensor or the fixing unit delivery sensors 1&2 detects a paper jam. Solution: Recover paper jam. "RECEIVED IN MAILBOX" Cause: A confidential document has arrived in a mailbox of the fax unit, and the message will remain displayed until you print the...
Page 282 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service "STOP KEY PRESSED" Cause: You have pressed the Stop button to cancel the current transaction. Solution: No need. "SUBADDRESS TX REJECTD" Cause: You attempted to send a document with an ITU-T subaddress, but the other party’s fax unit does not support receiving a document with an ITU-T subaddress.
Page 283 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 5.2.2 Error codes a) Service error code output If Service Data #1 SSSW SW01 bit 0 is set to "1", then service error codes are printed on the activity management reports, reception result reports, error transmission reports, and system dump lists when communication ends in an error.
Page 284 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service •Echo measures Change the following bit switches of service data #1SSSW SW03. Bit 4 → 1: Ignore the first DIS signal sent by the other fax machine. 0: Not to ignore the first DIS signal sent by the other fax machine. Bit 5 →...
Page 285 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service c) Error code list The error codes used for this fax are as follows. Codes listed as “New” in the list below indicate new error codes, or codes whose measures differ from those listed in the separate document G3 Facsimile Error Code List (Rev.1) .
Page 286 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service Tx or Rx Definition New #0099 [ TX/RX ] Pressed stop button during communication New #0102 [ TX ] In transmission, DCN received in response to password/sub-address #0995 [ TX/RX ] The image data stored in memory have been cleared c-2) Service error codes •...
Page 287 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service Tx or Rx Definition ##0285 [ TX ] DCN reception after EOP transmission ##0286 [ TX ] DCN reception after EOM transmission ##0287 [ TX ] DCN reception after MPS transmission ##0288 [ TX ] Receive signals other than PIN, PIP, MCF, RTP or RTN after EOP transmission ##0289 [ TX ]...
Page 288 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service • ECM mode error codes Tx or Rx Definition ##0750 [ TX ] Exceed repeat protocol due to failure to receive significant signals after transmitting PPS-NULL during ECM transmission ##0752 [ TX ] Receive DCN after PPS-NULL transmission during ECM transmission New ##0753 [ TX ]...
Page 289 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service Tx or Rx Definition ##0770 [ TX ] Exceed repeat protocol limit due to failure to receive significant signals after transmitting EOR-NULL during ECM transmission ##0772 [ TX ] Receive DCN after EOR-NULL transmission during ECM transmission New ##0773 [ TX ] Exceed protocol retransmission limit or T5 time...
Page 290 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service Tx or Rx Definition ##0792 [ RX ] Fail to detect PPS-NULL between partial pages during ECM reception ##0793 [ RX ] Time over due to failure to receive valid frame during high speed signal reception upon ECM reception ##0794 [ TX ] Receive all 0 PPR during ECM transmission...
Page 291 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service d) Recovery methods for codes indicated as “New” d-1) User error codes #0001 [TX] Paper jam The document jammed in the fax machine. Cause: Solution: Remove the document and transmit/copy again. Cause: The document width size or thickness does not meet the standards.
Page 292 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service Cause: Internal structure defect Solution: (1) Check if the document edge sensor (DES) is operating correctly using the methods given in Chapter 2: 2.4.7 Faculty tests , Test Mode [6] Faculty Test, [3] Sensor Tests. (2) Check the document edge sensor (DES) and SCNT board (J14) connections.
Page 293 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service #0009 [RX] Recording paper jam or out of paper Cause: The recording paper jammed. Clear the recording paper jam. Solution: There is no recording paper. Cause: Solution: Load recording paper. Cause: Internal structure defect Solution: (1) Check if the cassette recording paper sensors, cassette recording paper size sensors, multi-purpose tray paper sensor, recording paper eject sensor are operating correctly...
Page 294 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service (21) Check the recording paper eject sensor 2, the cable and the fixing unit (J131) connections. (22) Replace the recording paper eject sensor 2. (23) Replace the ECNT board. (24) Replace the ECNT board. (Recording paper eject sensor 1 defect) #0021 [RX] DCN received during polling reception Cause:...
Page 295 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service #0059 [TX] The number you dial and connected number (CSI) does not match “USER TEL” on the reception side not programmed, or wrongly Cause: programmed. Solution: (1) Contact reception side and check whether “USER TEL” has been properly programmed.
Page 296 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service #0099 [TX/RX] Pressed stop button during communication Cause: The Stop button was pressed during communication. Solution: Try transmit or receive again. #0102 [TX] In transmission, DCN received in response to password/sub- address Cause: Password/subaddress does not match.
Page 297 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service d-2) Service error codes • Printer error codes ##0322 [RX] Fixing heater temperature abnormality Your fax is connected to a UPS Cause: (Uninterruptable Power Supply). Solution: Remove the UPS. Cause: Internal unit defect Solution: (1) Check fixing heater (J133, J134), the cables and the ECNT board (J31) connections.
Page 298 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service • V.8/V.34 protocol error codes ##0670 [TX] At V.8 late start, the called party declares the V.8 protocol in DIS signal and this unit transmits a CI signal, but the protocol does not progress and a T1 time-out occurs.
Page 299 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service ##0675 [RX] The protocol did not move from phase 3 to phase 4 and a T1 time-out occurred during V.34 reception. The transmitter disconnected the line during phase 3 or the Cause: signal from the transmitter was not able to be detected.
Page 300 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service • ECM mode error codes ##0753 [TX] Exceed protocol retransmission limit or T5 time (60 seconds) after PPS-NULL transmission during ECM transmission The other fax’s page buffer is full or is being used, so PPS- Cause: NULL was transmitted, then RNR was received and after RR transmission, no significant signals could be received.
Page 301 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service ##0773 [TX] Exceed protocol retransmission limit or T5 time (60 seconds) after EOR-NULL transmission during ECM transmission The other fax’s page buffer is full or is being used, so EOR- Cause: NULL was transmitted, then RNR was received and after RR transmission, no significant signals could be received.
Page 302 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 5.3 Errors not Shown on the Display a) No power Solution: (1) Plug in the power cord. (2) Check the fuse in the power supply unit. If the fuse (F1, F2) blows, replace the fuse. (3) Check the power supply and ECNT board (J101) connections.
Page 303 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service Document read motor does not run at all or dose not run normally Solution: (1) Make a copy, and make sure that the document read motor is operating correctly. (2) Check the SCNT board (J4) and document read motor connections.
Page 304 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service Vertical black band in images Solution: (1) Clean the white sheet of the middle reader frame unit. (2) Clean the scanning glass. (3) Set SSSW #1 SW06 Bits 0 and 1 to "1", as explained in the separate document G3 Facsimile Service Data Handbook (Rev.
Page 305 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service g) Print defects Light Dark Completely blank All black Dots Marks on Black vertical Irregular and smudged back of paper lines black vertical lines Irregular and smudged Marks Blank spots black horizontal lines Poor fixing White vertical lines White horizontal lines...
Page 306 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service Light Solution: (1) In user data, set “SELECT DENSITY” of “FAX’S PRINTER SET” to “DK”. (2) Replace the toner cartridge. (3) During printing, open the printer cover, remove the toner cartridge, open the toner cartridge drum protective shutter by hand, and check that the toner image on the photosensitive drum is transferred to the recording paper.
Page 307 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service All black Solution: (1) Clean the high-voltage terminal and the toner cartridge contact. (2) Replace the toner cartridge. (3) Replace the ECNT board. Dots Solution: (1) Clean the static charge eliminator with brush. (2) Clean the transfer charging roller.
Page 308 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service Black vertical lines Solution: (1) Clean the mirror. (2) During printing, open the printer cover, remove the toner cartridge drum protective shutter by hand, and check if there are vertical black lines on the photosensitive drum. (3) If there are vertical black lines on the photosensitive drum, replace the toner cartridge.
Page 309 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service Marks Solution: (1) Copy a few white paper documents. (2) If the marks is at intervals of approx. 3.70" (94 mm), replace the toner cartridge. (3) If the marks is at intervals of approx. 2.97" (75 mm), clean the cassette separation roller.
Page 310 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service Faulty registration Solution: (1) Check if more than the regulation amount of recording paper is loaded in the cassette. (2) Clean the cassette pickup roller. (3) Clean the multi-purpose tray pickup roller. (4) Clean the feed roller.
Page 311 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service Checking the nip width of the pressure roller The fixing unit is not designed to allow adjustment of the pressure (nip width); however, the incorrect nip width can cause fixing NOTE problems. Follow the procedures below to check the nip width: (1) Either take along one or two all-black copies of A4 or letter size made with a copier, or make it using a copier at the...
Page 312 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service h) Recording paper pickup error The recording paper is not picked up from the multi-purpose tray Solution: (1) Check that the recording paper is not curled and is set correctly. (2) Check if more than the regulation amount of recording paper is loaded in the multi-purpose tray.
Page 313 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service (10) Replace the cassette pickup roller. (11) Replace the cassette feed roller and cassette separation roller together. (12) If the machine is LASER CLASS 3175MS or the optional Printer board I is installed into LASER CLASS 3170/3175, make a test print from the cassette 1.
Page 314 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service i) Recording paper feed error The recording paper is not fed between transfer and feed section Solution: (1) When a paper 180mm or less in length is jammed before reaching the fixing roller, examine whether the paper is curled downward.
Page 315 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service The recording paper is not fed between fixing and delivery section Solution: (1) If the nip width is not within the specification, replace the fixing ass’y. (2) Clean the fixing entrance guide. (3) If the recording paper eject sensor 2 lever does not move smoothly, adjust the lever so that it moves smoothly.
Page 316 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service Multiple feed Solution: (1) If jams occur in the multi-purpose tray, go to step (7) and thereafter. (2) Set the paper caught by the claw of the cassette. (3) Check the cassette claw. If it is deformed, replace it. (4) If the cassette separation roller is worn or deformed, replace the cassette feed roller and cassette separation roller together.
Page 317 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service j) Printer error PRINTER ERROR MESSAGES Solution: (1) For the detail of the printer error messages, refer to the Chapter 5, 4.5 Printer Board I, 4.5.4 Maintenance and service, b) Troubleshooting . Main motor does not run Solution: (1) Check the main motor, main motor connector (J301) and ECNT board (J52) connections.
Page 318 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 6. WIRING DIAGRAM 6.1 Wiring Diagram TWINS CAMS SPEAKER 100 pin board to board Not used ADFTHM STAMP SCNT J100 READ MOTOR OPCNT2 OPCNT1 OPCNT Figure 4-48 Wiring Diagram (1) 4-80...
Page 319 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service Not used To Power supply(J201) Figure 4-49 Wiring Diagram (2) 4-81...
Page 320 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service J S1 J202 J101 J201 Figure 4-50 Wiring Diagram (3) 4-82...
Page 321 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service 6.2 Signal Description SCNT board (J1) ,/ Memory board Memory Signal name Description DGND Ground Data signal Data signal Data signal Data signal Data signal Data signal Data signal Data signal A10 / Logic drive voltage A11 .
Page 322 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service SCNT board (J1) ,/ Memory board Memory Signal name Description A43 / nCASH Column address/high-order byte access A44 / nRAS2 Row address strobe signal No.2 A45 . Not connected A46 . Not connected A47 / nFWE XWE signal to DRAM...
Page 323 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service SCNT board (J2) ,/ TWINS board (J31) Signal name Description Address signal Address signal Address signal Address signal Address signal Address signal DGND Ground Data signal Data signal Data signal Data signal DGND Ground INTPIFI1...
Page 324 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service SCNT board (J2) ,/ TWINS board (J31) Signal name Description +24V +24V DGND Ground +5V(off while ESS) DGND Ground +3.3V +3.3V DGND Ground VD15 Data signal VD14 Data signal VD13 Data signal VD12 Data signal DGND...
Page 325 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service SCNT board (J2) ,/ TWINS board (J31) Signal name Description OPTION3 Option baord detection signal 3 PCLK Printer panel data transfer clock CSIRX Printer panel data receive signal +12V +12V AGND Analog ground +24V +24V +24V...
Page 326 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service SCNT board (J5) ,/ OPCNT board 1(J100) J100 Signal name Description ESSLED ESS LED drive signal ESSKEY ESS key input signal PRTCT SRAM protect signal PNLRX Panel data receive signal DGND Ground PNLCK Panel data transmission clock DGND...
Page 327 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service SCNT board (J9) ,/ NCU board (J1) Signal name Description DGND Ground BIT3 for future use BIT2 for future use BIT1 for future use LPL2 Not used LPL1 Not used HOOK2 Not used HOOK1 Off hook detection signal CIOR...
Page 328 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service SCNT board (J12) ,/ Sensor board(J1) (J1) Signal name Description +3.3V +3.3V(off while ESS) DGND Ground DGND Ground Document width sensor detect signal (H: No document, L: Document) SENPW Sensor power Document sensor detect signal (H: No document, L: Document) Document feed sensor detect signal (H: No document, L: Document)
Page 329 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service ECNT board (J31) ,/ Fixing unit(J131) J131 Signal name Description THRM Thermistor signal DGND Ground DEL2 DR Fixing unit delivery sensor 2 drive DGND Ground nDELSNS2 Fixing unit delivery detection signal 2 ECNT board (J51) ,/ TWINS board(J32) Signal name Description...
Page 330 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service ECNT board (J52) ,/ Main motor(J301) J301 Signal name Description nHALF Main motor speed switching signal nMRDY Main motor ready signal +24V Main motor drive voltage +24V Main motor drive voltage nMON Main motor drive signal DGND Ground...
Page 331 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service ECNT board (J55F) ,/ Not used J55F Signal name Description DGND Not connected Not connected +3.3V Not connected Not connected ECNT board (J56) ,/ MP tray pick-up solenoid(J125) J125 Signal name Description +24V Multi-purpose tray pick-up solenoid drive voltage...
Page 332 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service ECNT board (J59) ,/ Printer cover sensor (J119F) J119F Signal name Description +24VA Printer cover sensor drive voltage N.C. Not connected +24VB 24VB supply and top cover detection signal (H: Close, L: Open) ECNT board (J60) ,/ Recording paper overload sensor 1 (J113) J113 Signal name...
Page 333 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service ECNT board (J72) ,/ Paper size board(J603) J603 Signal name Description Pick-up module identification signal 1 Lower cassette pick-up solenoid drive signal PCKCHK Pick-up module identification signal 1 Upper/lower cassette selection signal n1st SNS Cassette paper detection signal (H: No recording paper, L: Recording...
Page 334 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service ECNT board (J101) ,/ TWINS board(J42) J101 Signal name Description MODRST Modem reset signal CLKCTL Clock control signal ECNT board (J102) ,/ Recording paper overload sensor 2 J102 Sensor Signal name Description FUL2DR Recording paper overload sensor 2 drive signal...
Page 335 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service TWINS board (J31) ,/ SCNT board (J2) Signal name Description CLKCTK Clock control signal Terminal count DACK2 DMA acknowledge signal 2 DACK5 DMA acknowledge signal 5 DREQ2 DMA request signal 2 DREQ5 DMA request signal 5 OPTION0 Option board detection signal 0...
Page 336 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service TWINS board (J31) ,/ SCNT board (J2) Signal name Description Data signal Data signal Data signal Data signal ESSACT ESSACT FIORD IO read signal FIOWR IO write signal DGND Ground ICS7 Chip select signal 7 V terminal count VACK1 VACK1...
Page 337 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service TWINS board(J32) ,/ ECNT board (J51) Signal name Description DGND Ground Beam detection signal nPPRDY Printer power ready signal nRDY Ready signal nTOP Top of page signal nSBSY Status busy signal TWINS board(J32) ,/ ECNT board (J51) Signal name Description nSTS...
Page 338 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service TWINS board(J33) ,/ Printer board I (J2) Signal name Description DGND Ground nCCLK Controller clock signal nCMD Command signal DGND Ground nCPRDY Controller power ready signal nPRFD Pre-feed signal nPRINT Print signal nCBSY Command busy signal nPCLK...
Page 339 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service TWINS board(J36) ,/ Power supply unit (J202) J202 Signal name Description +24V +24V(off while ESS) 24GND Ground 24GND Ground Ground Ground +3.3V +3.3V(off while ESS) +3.3V +3.3V(off while ESS) Ground TWINS board(J36) ,/ ,/ Power supply unit (J202) J202 Signal name...
Page 340 LASER CLASS 3170/3175/3175MS Chapter 4: Maintenance and Service TWINS board (J39) ,/ Dual-line upgrade kit II (J700) J700 Signal name Description PERROR Print error signal A10 , BUSY Busy signal A11 / nACK ACK signal A12 . Data signal A13 . Data signal A14 .
Page 341 Chapter 5 Appendix...
Page 342 1.3 Removing the Shipping Material 1.4 Assembling the Fax • Installing the toner cartridge • Attaching trays • Installing paper feed unit (PF-52) (For the LASER CLASS 3175/3175MS only) • Loading paper in paper cassettes 1 and 2 • Connecting the handset (option) •...
Page 343: Setting Up The Fax
LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 1.1 Setting up the Fax CAUTIONS SHOW YOU HOW TO AVOID CONDITIONS OR INCORRECT OPERATIONS THAT COULD CAUSE DAMAGE TO YOUR HARDWARE OR SOFTWARE OR CAUSE PERSONAL IN- JURY. This icon denotes feeding a document. Where to Set Up the Fax Avoid direct sunlight.
Page 344 Place the fax unit near a telephone line. You must have an LINE RJ11-C wall jack installed. If you need assistance, contact your authorized Canon dealer or service representative, or your local telephone company. To avoid damage to the fax unit from overheating, do not block the exhaust vent.
Page 345: Space Around The Fax
LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Space Around the Fax To ensure proper ventilation and easy operation, set up the fax in an area that meets the minimum requirements for clearance as illustrated below. TO AVOID DAMAGE TO THE FAX UNIT FROM OVERHEATING, DO NOT BLOCK THE EXHAUST VENT.
Page 346: Power Requirements
LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Power Requirements Place the fax near a standard 120 V AC power outlet. This fax unit is intended for domestic use. Do not attempt to use it outside the country where you purchased it. Do not plug the power cord into an extension cord connector or power strip shared with other plugs.
Page 347: Unpacking
LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 1.2 Unpacking Unpacking: Have You Got Everything? As you unpack the fax, save the carton and packing material in case you want to move or ship the fax unit in the future. Ask someone to help you remove all items from the box.
Page 348 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Remove the four stoppers on the side of the box by squeezing the center grip. Lift and remove the upper carton. Remove the four styrene foam blocks positioned on top of the fax unit. Then lift the fax unit by gripping the handles on the right and left sides.
Page 349 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Take out Paper Feed Unit (PF-52) from its carton box. ® Paper Cassette 2 is optional for the LASER CLASS 3170. ® ® For the LASER CLASS 3170, the LASER CLASS 3175 and ® the LASER CLASS 3175MS Check each item against this list as you remove it from the box.
Page 350 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix ® ® For the LASER CLASS 3175 and the LASER CLASS 3175MS Only 1 Paper Feed Unit (PF-52) (letter-, legal-, A4-, executive-, B5-size, 500- sheet capacity) ® For the LASER CLASS 3175MS Only 1 Printer User’s Guide 1 CD-ROM (Printer driver) 1 Sheet of End User Licence Agreement (PCL Board) ®...
Page 351 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix For the LASER CLASS 3170/3175/3175MS ® UPPER OUTPUT TRAY DOCUMENT OUTPUT TRAY DOCUMENT FEEDER TRAY FAX UNIT (with Paper Cassette 1 installed) FACSIMILE USER'S GUIDE DESTINATION LABELS × 2 TELEPHONE TRAY LINE LABELS × 1 FX6 TONER CARTRIDGE POWER CORD...
Page 352: Removing The Shipping Material
LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 1.3 Removing the Shipping Material Removing the Shipping Material All shipping materials must be removed. Shipping materials are attached inside the fax unit and inside the paper cassette to protect delicate parts from vibration during shipping. Removing the Shipping Tapes Remove all the shipping tapes from the unit.
Page 353 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Close the ADF cover. Open the printer cover and the MP tray. Remove the tapes and packing materials. 5-12...
Page 354 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Close the printer cover and the MP tray. • Save all the packing materials. You may want to insert them again if you have to transport the fax unit. • When removing the packing materials from inside the printer area, be careful not to touch the transfer charging roller.
Page 355 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Removing the Protective Plastic Sheet The LCD on the operation panel is covered with a plastic sheet to protect it during shipping. This protective material should be removed before you use the fax unit. 5-14...
Page 356: Assembling The Fax
Follow the instructions in this section to assemble the fax and prepare it for full operation. Installing the Toner Cartridge Install only a Canon FX6 Toner Cartridge in your fax machine. INSTALLING ANY OTHER TYPE OF CARTRIDGE IN THIS FAX UNIT COULD DAMAGE THE FAX UNIT AND VOID YOUR WAR- RANTY.
Page 357 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Save the protective bag and all other shipping material. You will need this material later when you dispose of the cartridge after it has run out of toner. Hold the cartridge by the ends and rock it gently five or six times to distribute the toner evenly inside the cartridge.
Page 358 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix To avoid pinching your fingers between the toner cartridge and fax unit, grip the cartridge as shown below. KEEP THE DRUM SLOT FREE OF DUST AND OTHER FOREIGN OBJECTS. DO NOT TOUCH THE PROTECTIVE SHUTTER ON THE BOTTOM OF CARTRIDGE.
Page 359 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Attaching the Document Output Tray and the Upper Out- put Tray Attach the upper output tray to the front of the fax unit. Slide the end of the upper output tray down into the fax unit at an incline, lifting the end nearest you.
Page 360 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Make sure the knobs on each side of the tray fit into the holes on the side of the fax unit. Back of the tray sits on top of the extended lip of the fax unit. Attaching the Document Feeder Tray Slide one side in position first and then the other side.
Page 361: Installing Paper Feed Unit (Pf-52) (For The Laser
LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Installing Paper Feed Unit (PF-52) (For the LASER CLASS ® 3175/3175MS Only) ® Paper Feed Unit (PF-52) is standard for the LASER CLASS 3175/ ® 3175MS, and optional for the LASER CLASS 3170. Remove the tape at the front of Paper Feed Unit (PF-52). Pull out the paper cassette 2.
Page 362 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Remove the tapes and packings at the rear of the paper cassette 2. If a spacer is attached, remove it from the paper cassette 2 while pressing the bottom plate. Replace the cassette into Paper Feed Unit (PF-52) and place it in the location you wish to use the fax after the cassette has been installed.
Page 363 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Lift up the fax unit and hold it over Paper Feed Unit (PF-52). LIFTING THE FAX UNIT REQUIRES TWO PEOPLE. TO MOUNT THE FAX UNIT ONTO PAPER CASSETTE 2, FOLLOW THE GEN- ERAL GUIDELINES AND ILLUSTRATION ON THIS CHAPTER, 1.6 Moving The Fax Unit.
Page 364: Loading Paper In Paper Cassettes 1 And 2
When you use it as a paper supply for fax, you can load letter-, legal- or A4-size paper only. For high-quality printings, we recommend using Canon standard 17- 24 lb.(64-90g/m ) weight paper.
Page 365 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Pull out the paper cassettes from the fax unit. Check if the selectors inside the paper cassettes are set for the size of the paper you are loading. If the setting is correct, go on to step 3. -if not- Set the paper cassettes to fit the sizes of the paper you are loading.
Page 366 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Lift the stopper in the center of the paper size rear guide slightly, and slide it to the mark indicating the desired paper size. WHEN YOU SET TO LETTER SIZE. To change the paper size for Paper Cassette 2 To adjust the paper size side guides, release them by pinching the stopper on the left guide and slide them inwards or outwards according to the paper size you are loading.
Page 367 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Push up the stopper of the paper size rear guide, and slide it to the mark indicating the desired paper size. WHEN YOU SET TO A4 SIZE. You can load executive- or B5-size paper in Paper Cassette 2 only when you use it for the printer function.
Page 368 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Before you load a stack of paper into the paper cassettes, tap the leading edge of the paper stack on a flat surface so that the edges are evenly aligned. Place the stack of paper in the paper cassettes with the print side facing down.
Page 369 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Press down on the front of the paper stack to make sure the corners are below the paper size guide clips. Then press the stack down again to make sure it is below the paper limit marks on the side of the paper cassettes and the paper size guides hook at the back of the cassettes.
Page 370 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Reinsert the cassette into the fax unit: Align the cassette with the rails on the fax unit, then lift slightly to insert the cassette. Slide it all the way into the fax unit. Make sure you insert the cassette all the way into the fax unit until it locks into place.
Page 371: Connecting The Handset (Option)
Connecting the Handset (option) A telephone handset is available as an option for the fax machine. ® This handset is for use with Canon LASER CLASS 3170/3175/3175MS only. Attach the handset rest holder to the back of the handset rest with the screws provided.
Page 372: Connecting The Telephone Line
LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Connect the end of the handset connector cord to the extention phone jack marked with the handset icon ( Place the handset on the handset rest. Connecting the Telephone Line Make sure you have an RJ11-C wall jack. If you need assistance, contact your dealer or telephone company.
Page 373: Connecting An Extension Phone
LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Connect the other end of the telephone line to your wall telephone jack. If you have installed the optional Dual-line Upgrade Kit, you can connect another telephone line to the fax unit. Connecting an Extension Phone To connect an extension phone to the fax, you have to use the extention phone jack.
Page 374: Using The Mp Tray
When not in use, the tray can fold up into the fax unit. Loading the MP Tray Before you load the paper, follow these general guidelines: For high-quality printings, we recommend using Canon standard 17- 24 lb.(64-90g/m ) weight paper.
Page 375 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix • Avoid pressing or applying excessive force on the MP tray as this may cause damage. • The paper stack must not exceed the paper limit mark. • Do not load different sizes of paper on the MP tray at the same time. •...
Page 376 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Pull the MP tray out using the handle on the panel. Pull out the extension tray using the center grip. The MP tray holds approximately 100 sheets of paper. Before you load paper on the MP tray, tap the edges of the stack to make sure the leading edge and sides of the stack are even.
Page 377 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Insert the paper stack as far as it will go into the fax unit, with the print side facing up and the top of the paper going into the fax unit first. Then adjust the paper guides to the size of the paper. PAPER SENSOR PAPER-FEED ROLLER...
Page 378 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix • Make sure that the paper guides are set correctly. To print with the MP tray, you also need to select the paper size in the USE MP TRAY menu. • Make sure that the paper is loaded correctly and that the leading edge is fully inserted into the fax unit.
Page 379 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Turning on and off USE MP TRAY and Setting the Paper Size in the USE MP TRAY Menu To use the MP tray as one of the input trays, you need to select ON for USE MP TRAY in the FAX’S PRINTER SET menu.
Page 380 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Press USE MP TRAY 6. Press the search buttons to display ON. USE MP TRAY If you use the MP tray for the printer function and load paper of sizes other than letter, legal or A4, it is necessary to set USE MP TRAY to OFF on the FAX’S PRINTER SET menu.
Page 381: Turning On The Power
LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Turning on the Power Connect the power cord to the power socket on the rear of the fax unit. Connect the other end of the power cord to the power source. THE FAX MUST BE CONNECTED TO A PROPERLY GROUNDED, THREE-PRONG 120 V AC OUTLET.
Page 382 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix INSTALL CARTRIDGE You have not yet installed the toner cartridge. Install the FX6 toner car- tridge. REPLACE CARTRIDGE The toner cartridge has run out of toner. Replace the toner cartridge. CHECK PRINTER COVER The printer cover is not closed com- pletely.
Page 383: Processing When Trouble Occurs
LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Processing When Trouble Occurs Very rarely, during use the display may go out, all the keys stop working, or some other trouble occur because of intense noise or a strong shock. If such trouble occurs, perform an All Clear operation.
Page 384: Checking Operations
LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 1.5 Checking Operations Copy operation Check that normal images are printed. Set the MEMORY IN USE DOCUMENT READY Copy COPY document COPY Start/Scan START Copy operation XXXXXXXXXXX Figure 5-2 Copy Operation Communication Test Transmit to, and receive from other faxes, and check that images are sent normally for transmission, and are printed normally for reception.
Page 385: Moving The Fax Unit
LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 1.6 Moving the Fax Unit The fax unit is heavy. Be sure to follow these general guidelines when lifting the fax to move it or to install Paper Feed Unit (PF-52), etc. Moving the fax unit requires two people. When you lift the fax, hold it by the handles on the right and left sides.
Page 386 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 2. SERVICE TOOLS 2.1 Printer Driver Tester 2.1.1 Outline Figure 5-3 Printer Driver Tester Printer driver tester is a special tool that operates the printer to check printer operations. It is also used with the thickness gauge to adjust installation position of the envelope multiple feed sensor of the envelope feeder.
Page 387 Cassette print open Cassette Size SW14 SW13 SW12 Reserved PRINTER DRIVER TESTER Analog Data LED18 Reserved Service Error CANON INC RY9-0124 Operation Error MADE IN JAPAN Sensor Test Option Sensor Sensor/Switch Reset LED17 Communication SW14 SW13 SW12 SW15 Display Select...
Page 388 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 2.1.3. Operation a) Connecting to the printer Before handling the printer driver tester, make sure to touch metallic parts of the printer to discharge electrical static as it may cause malfunctions or failures in the printer and the tester. NOTE Connector 1 Connector 2...
Page 389 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b) Setting the printer operations Table 5-1 shows printer operations that can be set by combinations of switches on the printer driver tester. Set the operation mode with SW1 and SW2 and various data with SW3 to SW9 according to the table 5-1.
Page 390 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Table 5-1 Printer Operation Setting Test print selection Density selection Operation selection Paper pick-up source SW5 SW4 SW3 SW6 SW5 SW4 SW3 Density Ready inhibit (Note) Cassette Normal — mode Multi-purpose tray Test print Paper feeder Envelope feeder Cassette...
Page 391 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix c) Monitoring the printer condition Select items to monitor from the table 5-2 and 5-3. Make settings with SW12 to SW14 and monitor the printer condition with LED1 to LED16. Table 5-2 Printer Condition (1) Sensor/switch information Sensor/switch information Jam display...
Page 392 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Table 5-3 Printer Condition (2) Status information 1 Status information 2 Analog data SW12 SW13 SW14 A/D data of VR501 (Note 7) No paper in the specified LED1 Scanner failure bit 0 (LSB) pick-up source A/D data of VR501 LED2 No toner cartridge...
Page 393 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix • Two sheets of paper are fed to the duplexing unit when the duplex delivery has been selected. • The duplexing unit was eliminated from the delivery unit configuration when the option delivery slot has been selected. 3.
Page 394 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3. OPTION 3.1 Option Memory VII (4M-BYTE) 3.1.1 Safety and precautions Damage due to electrostatic discharge Electrostatic charge in the human body is the cause of damage to electronic parts as well as changes in their characteristics. When attaching / removing memory boards, be sure to take measures against electrostatic discharge by using a wrist strap, etc.
Page 395 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b) Installation b-1) Unpacking Check that the box contains the memory board. b-2) Preparation Perform the operations below before attaching the memory boards. (1) Output all image data if there is any remaining in image memory. When attaching memory boards, it is necessary to disable memory backup, so the complete contents of image memory will be cleared.
Page 396 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b-3) Attaching memory boards (1) To disable memory backup, remove the jumper plug on the SCNT board jumper switch (JP1). When the jumper plug is attached to the SCNT board jumper switch (JP1) even when the power is turned off, the voltage of the Vanadium-Lithium secondary battery is still being output to the memory extension connector (J1).
Page 397 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix (2) To install the first DRAM board, follow the steps shown below. To install the second DRAM board, follow the steps shown below. First DRAM board Second DRAM board SCNT board Figure 5-10 DRAM Boards Installation (2) Insert the DRAM board into the socket in the direction indicated by arrow , then push it in the direction indicated by arrow...
Page 398 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b-4) Check after DRAM boards installation After installing the DRAM boards, carry out the following procedure to ensure that the DRAM boards are properly identified by the fax. (1) Referring to the flow chart, enter test mode D-RAM test [1]. SERVICE MODE Display TEST MODE by Data Registration...
Page 399 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b-5) Removing the memory board When removing the memory board, perform the steps in b-3) Attaching memory boards in reverse order. Be sure to remove the memory board only after turning the power off and removing the jumper plug on SCNT board jumper switch (JP1).
Page 400 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.1.3 Technical information a) Configuration and construction 1. Product name OPTION MEMORY VII (4MB) 2. External view 4Mbyte Figure 5-13 DRAM Board (4MB) b) Specifications Type of memory DRAM 2Mbyte × 2 Capacity 5-59...
Page 401 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.1.4 Maintenance and service a) Troubleshooting The fax does not recognize the DRAM boards even when the test mode D- RAM test is executed. Solutions: (1) Check that the DRAM boards are securely connected. (2) Replace the DRAM board.
Page 402 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix SCNT board (J1) ,/ Memory board Memory Signal name Description A33 . Not connected A34 . Not connected A35 . VD15 Data signal A36 . Not connected A37 . Data signal A38 . Data signal A39 .
Page 403 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix The J1 connector on the SCNT board has two rows A and B and has a total of 144 pins. Since rows A and B have similar pin layout , only different pins are shown below: NOTE B34 :nRAS2 B44 :nRAS1...
Page 404 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.2 Handset Kit L7 (CT-17) 3.2.1 Service operations a) External view Handset Handset rest Handset rest holder Screws Screws Figure 5-14 External View b) Installation b-1) Unpacking Check that the box contains the handset itself, the handset rest, and three screws.
Page 405 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Figure 5-16 Attachment to the Main Unit (2) 5-64...
Page 406 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.2.2 Technical information a) Configuration and construction 1. Product name Handset Kit L7 2. External structure Handset 8.44" (214.5mm) Handset rest 8.30" (210.8mm) Screw 3.54" (90.0mm) Figure 5-17 External View b) Specifications Applicable line PSTN Ring volume Selectable from 3 levels...
Page 407 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.2.3 Operations a) Functions a-1) Telephone call function The handset is connected to the main unit's handset jack. When the other party is a telephone, you can talk on the handset just as on an ordinary telephone.
Page 408 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.2.4 Maintenance and service a) Troubleshooting Even when a call is received, the bell does not ring. Solutions: (1) Check that the handset modular jack connector is properly connected to the handset jack on the modular board of the fax. (2) Check that the ring back tone volume adjustment switch is set to Off.
Page 409 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.3 Verification Stamp Unit 3.3.1 Service operations a) External View Figure 5-19 External View b) Installation b-1) Unpacking Check that the box contains the stamp unit and one screw. b-2) Attachment to the main unit (1) Disconnect the power cord of the fax unit at the power source.
Page 410 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix (3) Remove the three screws, and remove the lower reader cover. Lower reader cover Figure 5-21 Attachment to the Main Unit 2 (4) Connect the stamp unit connector cable to the main unit, and fasten the stamp unit with the one screw as shown below.
Page 411 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix (5) Remove the cap from the stamp unit. Figure 5-23 Attachment to the Main Unit 4 (6) Fasten the lower reader cover in place with the three screws. (7) Place the end of the stopper over the end of the stub so it locks in place, and close the upper reader frame.
Page 412 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix (9) In the service mode, set #1SSSW SW06 Bit3 to 1. SERVICE MODE Data Registration #1 SSSW Display SW06 by #1 SSSW pressing button SW06 10011000 #1 SSSW Standby Stop DATA ENTRY OK Figure 5-25 Flowchart of Changing SSSW b-3) Operation check After setting 8.
Page 413 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.3.2 Maintenance and service a) Signal description STAMP unit ,/ SCNT board (J8) Stamp Signal name Description STAMP+24V STAMP+24V STAMPGND STAMP ground 5-72...
Page 414 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.4 Paper Feed Unit PF-52 PAPER FEED UNIT PF-52 is standard for the LASER CLASS 3175/3175MS, and optional for the LASER CLASS 3170. 3.4.1 Safety and precautions a) Personal precautions During servicing, if you have to operate the sensor arm, be careful to keep hair, clothes, accessories, etc.
Page 415 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.4.2 Service operations a) External Views Figure 5-27 External View 5-74...
Page 416 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b) Installation b-1) Unpacking Please refer to item Installing Paper Feed Unit (PF-52) in this Chapter, 1.4 Assembling the Fax , for installation. REFERENCE b-2) Attachment to the main unit Please refer to item Installing Paper Feed Unit (PF-52) in this Chapter, 1.6 Moving the Fax Unit , for installation.
Page 417 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b-3) Cassette installation (1) When you plug the power cord into a socket, “SUPPLY REC. PAPER” is displayed and the Alarm lamp blinks. Check that the cassette pickup roller is at its initial position. After connecting the paper feed unit PF-52 and install the toner cartridge, when you plug the power cord, the main unit automatically detects that the feed unit is connected and the...
Page 418 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.4.3 Technical information a) Configuration and construction External structure Item Dimensions and weight Remarks 15.35" (W) × 19.41" (D) × 4.96" (H) Dimensions With cassette (390 × 493 × 126 mm) Weight approx. 15.4 lbs (7 kg) 4.96"(126mm) 19.41"(493mm) Figure 5-29 External View...
Page 419 Executive 7.25"(W) × 10.50"(L) (184 × 267 mm) Weight 64~90 g/m Recording paper cassette capacity 500 sheets (max.), or 2.20" (56mm) in height; of weight 80g/m paper. Recommended recording paper Canon Copier LTR/LGL Premium Paper Weight 75 g/m Paper size Letter, Legal Manufactured by BOISE CASCADE...
Page 420 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.4.4 Operations a) Functions a-1) Recording paper pickup function The paper feeder is driven by the main motor of the fax via the gear. When the nPRNT signal is sent to the ECNT board from the SCNT board, the main motor of the printer starts rotation.
Page 421 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix c) Arrangement of switches Paper size SW801 SW802 SW803 No cassette LEGAL (Available for printer function.) Executive LETTER (Available for printer function.) Other (Available for printer function.) Custom (Available for printer function.) SW801 SW802 SW803 Figure 5-31 Arrangement of Switches 5-80...
Page 422 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix d) Electrical circuit section The operation sequences of the paper feeder are controlled by the paper feeder driver. A 4-bit microprocessor is used in the paper feeder driver, which controls the sequences of the paper feeder and the serial communication with the engine controller (ECNT board) of this fax.
Page 423 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.4.5 Maintenance and service a) Troubleshooting The fax main unit does not detect that the PAPER FEED UNIT PF-52 is mounted. Solutions: (1) Check the connection between the main unit and the paper size detection board 2. (2) Check the connection between J811, J812 on the paper feeder connector and J801 on the paper size detection board 2.
Page 424 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b) Signal description Paper size detection board 2 (J801) ,/ Paper size detection board 1 (J601) J801 J601 Signal name Description +24V Paper feeder unit drive voltage nSEL1 Paper feed select signal Ground SOUT Serial output data Serial input data SCLK...
Page 425 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.4.6 Recording Paper Size Priority a) Cassette selection switches Here are the two cassette selection switch items. Switch A: divided recording Enables/disables recording of received images onto recording paper with a length shorter than the received/copied length. Switch B: margin recording Enables/disables recording with margins of received images onto recording paper with a length longer than the received/copied length.
Page 426 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b) Reading the recording paper size table When the recording paper size is determined with reduction, the combination of user data cassette selection switches A and B determine the priority order for the recording paper actually printed and the contents of printing. Below are examples of how to read the recording paper size table that shows this data.
Page 427 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix c) Printed recording paper table Reception image size: A4 Cassette switches A4/Letter Letter/Legal 1) Actual size 1) Automatic reduction (A4) (Letter) 2) Automatic reduction 2) Memory reception (Letter) (Legal) 1) Actual size 1) Automatic reduction (A4) (Letter) 2) Automatic reduction...
Page 428 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Reception image size: Legal Cassette switches A4/Letter Letter/Legal 1) Automatic reduction 1) Actual size (A4) (Legal) 2) Automatic reduction 2) Automatic reduction (Letter) (Letter) 1) Automatic reduction 1) Actual size (A4) (Legal) 2) Automatic reduction 2) Automatic reduction (Letter) (Letter)
Page 429 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.5 Envelope Feeder EF-52 3.5.1 Service operations a)External Views Envelope guide Weight Extension tray Figure 5-34 External View b) Installtion b-1) Unpacking Check that the box contains the envelope feeder. b-2) Attachment to main unit (1) Open the envelope feeder packaging.
Page 430 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.5.2 Technical information a)Configrution and construction External structure Item Dimensions and weight 12.91" (W) × 13.94" (D) × 4.45" (H) Dimensions (328 × 354 × 113 mm) Weight approx.4.85 lbs (2.2 kg) 4.45"(113mm) 13.94"(354mm) Figure 5-35 External View b) Specifications Envelope types...
Page 431 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.5.3 Operation a) Function a-1) Paper pickup function The pick-up roller, feed roller, and separation roller are rotated sequentially by the main motor rotation, and an envelope is picked up. Then, the unnecessary envelopes are removed by the separation roller and the picked up envelope is fed to the printer.
Page 432 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix c) Arrangement of sensors Envelope multi feed sensor Envelope sensor Figure 5-38 Arrangement of Sensors d) Electrical circuit section The signal detect by the envelope multiple feed sensor, envelope sensor and envelope pick-up solenoid, are sent ECNT board via the envelope feeder driver PCB.
Page 433 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.5.4Maintenance and service a)Troubleshooting a-1) Paper jam trobleshooting <Possible causes> 1.Warped or twisted envelope Action: Straighten the warped or twisted envelope, and then instruct the user. 2. Defective Printer board I Action: Make a test print from the envelope feeder. If the envelope is picked up correctly, replace thePrinter board I.
Page 434 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix a-2) Malfaunction status trobleshooting "5F-61 ERROR” (Envelope Option error) <Possible causes> 1. Defective envelope feeder connector Action: Remove the envelope feeder from the fax and check the connector. Replace the connector if any failure is found. 2.
Page 435 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b) Signal description Envelope feeder(J901) ,/ ECNT board (J911) J901 J911 Signal name Description Not connected +24V Envelope feeder drive voltage nSEL2 Envelope feeder select signal DGND Ground Envelope feeder(J901) ,/ ECNT board (J912) J901 J912 Signal name Description...
Page 436 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.5.5 Installation Position Adjustment of Separation Guide of Envelope Feeder (adjustment of gap between separation guide and lower separation roller) a) When Normally, the separation guide and the top cover of the envelope feeder must be removed as one.
Page 437 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.5.6 Installation Position Adjustment of Envelope Multiple Feed Sensor a) When The installation position of envelope multiple feed sensor is normally adjusted at the factory. However, if the screw which hold the sensor is removed or accidentally loosened for replacement of the sensor or its peripheral parts, the installation position of envelope multiple feed sensor must be adjusted correctly.
Page 438 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Thickness gauge (RY9-0122) Screw Envelope multiple feed sensor Connecting to the multiple feed sensor connecter. Printer driver tester (RY9-0124) Sensor Test LED Connecting to the printer's connector for the envelope feeder. Figure 5-41 Adjustment of Envelope Multiple Feed Sensor 5-97...
Page 439 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.6 Duplex Unit DU-52 3.6.1 Service oprations a)External Views Figure 5-42 External View b) Installtion b-1) Unpacking Check that the box contains the duplexing feeder. b-2) Attachment to main unit (1) Open the duplexing unit packaging. (2) Take off the plastic bag and peel the tape off.
Page 440 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.6.2 Technical information a) Configrution and constuction External structure Item Dimensions and weight 12.56" (W) × 14.17" (D) × 5.55" (H) Dimensions (319 × 360 × 141 mm) Weight approx. 7.72 lbs (3.5 kg) 5.55"(141mm) 14.21"(361mm) figure 5-43 External View...
Page 441 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.6.3 Operation a) Function a-1) Reversing function When the duplexing unit receives the duplexing unit command from the fax, it turns ON the duplexing unit solenoid, moves the face-up deflector and feeds the paper to the duplexing unit. It also rotates the reversing motor in the reverse direction for about 1 second, and feeds the paper remaining in the reversing unit to the duplexing unit pick-up sensor.
Page 442 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix goes through transfer, separation, fixing and delivery unit and is delivered to the tray. a-3) Paper jam detection The following paper sensors are installed to detect whether the paper is present or not and whether the paper is fed normally or not. •Reversed paper sensor (PS703) •Duplexing unit pick-up sensor (PS701) The CPU determines whether paper is jammed or not by checking whether...
Page 443 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b)Structure The paper is led to the duplexing unit by the face-up deflector. This face-up deflector moves in conjunction with the face-up tray, however, it moves by the duplexing unit solenoid (SL701) when the face-up tray is closed. The reversing roller changes the feeding direction of the paper fed to the duplexing unit.
Page 444 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix c) Arrangement of sensors PS702 PS703 PS701 Figure 5-46 Arrangement of Sensors 5-103...
Page 445 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix d) Electrical circuit section The signal detect by the duplexing unit pick-up sensor, face-up sensor and reversd paper sensor, are sent ECNT board via the duplexing unit driver PCB. Duplexing unit driver PCB +24VA J711-3 J704-1 /SEL0...
Page 446 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.6.4 Maintenance and servece a) Troubleshooting a-1) Paper jam trobleshooting <Possible causes> 1. Paper is curled due to having been left for a long time. Action: Straighten the paper, and then instruct the user. 2.
Page 447 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 14. Defective Printer board I Action: Replace the Printer board I. a-2) Malfanction status trobleshooting "5F-56 ERROR" (Duplexing unit exhaust fan (FM701) malfunction) <Possible causes> 1. Poor contact in the connectors of the FM701 drive signal line Action: Reconnect the intermediate connectors J718 and J719, then the duplexing unit driver PCB connector J707.
Page 448 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix "DUPLEX JAM" message appears when the paper jam has not occurred; so, the fax cannot be in READY mode. <Possible causes> 1. Reversing paper sensor lever does not move smoothly, or is damaged. Action: Set the lever to move smoothly. Replace it if damaged. 2.
Page 449 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Duplexing unit(J702) ,/ Duplex feed motor J701 Motor Signal name Description FMT A Duplex feed motor drive signal nFMT A Duplex feed motor drive signal FMT B Duplex feed motor drive signal nFMT B Duplex feed motor drive signal Duplexing unit(J703) ,/ Duplex unit solenoid J703...
Page 450 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Duplexing unit(J707) ,/ Duplexing unit exhaust fan J707 Signal name Description F ON Duplexing unit fan drive signal F LOCK Duplexing unit fan lock detection signal DGND Ground 5-109...
Page 451 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.7 Dual-line Upgrade Kit II 3.7.1 Safety and precautions Damage due to electrostatic discharge Electrostatic charge in the human body is the cause of damage to electronic parts as well as changes in their characteristics. When attaching / removing the kit, be sure to take measures against electrostatic discharge by using a wrist strap, etc.
Page 452 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b) Installation b-1) Unpacking Check that the box contains the dual-line upgrade kit II, modular jack cord and the two screws. b-2) Preparation Perform the operations below before attaching the kit. (1) Disconnect the modular jack cord (telephone line) from the fax. (2) Disconnect the power cord of the fax unit at the power source.
Page 453 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix (6) Remove the seven screws and remove the printer board I. PRINTER BOARD I (Option) Figure 5-51 Preparations for Installation 2B (7) Remove the two screws and remove the shield cover 2. Shield cover 2 Figure 5-52 Preparations for Installation 3 5-112...
Page 454 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b-3) Attaching the kit (1) Refer to Figure 5-52 and bend cables 1 and 2 as shown in order to make insertion of the kit easier. (2) Insert cables Cable 1 and Cable 2 into J701 and J700 on the kit. (3) Insert the kit, aligning the tabs with the slots on the main unit.
Page 455 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b-4) Check after the Kit Installation After installing the kit, carry out the following procedure to ensure that the kit is properly identified by the fax. (1) Referring to the flow chart, enter user data registration, then check the following menu.
Page 456 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.7.3 Technical information a) Configuration and construction 1. Product names DUAL-LINE UPGRADE KIT II 2. External view 1.65" (42mm) 6.69" (170mm) Figure 5-55 External View 5-115...
Page 457 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b) Specifications Dimensions 6.69" (W) × 9.70" (D) × 1.65" (H) (170mm × 246.5mm × 42mm) Weight Approx. 1.32 lbs (0.6 kg) Applicable lines Analog line (one line) • PSTN (Public Switched Telephone Network) Transmission method Half-duplex Transmission control protocol...
Page 458 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Canon express protocol CEP1 Time required for transmission protocol Post-message Post-message Pre-message Protocol Protocol Mode Protocol (between pages) (after pages) V.8 / V.34 Approx. 6 s Approx. 1 s Approx. 1 s T.30 Standard Approx.
Page 459 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix c) Service soft switch #1 SSSW SW11 (service soft switch 11: Dual-line function settings) Function 0 (New) Enable Access Codes Not used Not used Not used Not used Not used Not used Not used [Bit 0] When the dual-line upgrade kit II is installed, you can select whether to specify the lines used for calling.
Page 460 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.7.4 Maintenance and service a) Troubleshooting The fax does not recognize the dual-line upgrade kit II even when it is attached properly. Solutions: (1) Check that the kit securely connected. (2) Replace the kit. (3) Replace the TWINS board.
Page 461 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix ,/ TWINS board (J39) Dual-line upgrade kit II (J700) ,/ J700 Signal name Description B11 . Ground B12 . Ground B13 . Ground B14 . Ground B15 . Ground B16 . Ground B17 , nSELECTIN Select in signal B18 ,...
Page 462 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix ,/ NCU board (J1) 2port board (J702) ,/ J702 Signal name Description DC relay control signal CMLD CML relay control signal H relay control signal P relay control signal S relay control signal DGND Ground DGND Ground...
Page 463 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 4.1 Ethernet Board EB-52 FX 4.1.1 Safety and precautions Danger by Static Charge Static charge can change the electrical characteristics of the ethernet board or damage it. Do not handle the ethernet board under circumstances where static charge might occur easily.
Page 464 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 4.1.3 Technical information a) Specification Interface 10Base-T Ethernet, 100Base-TX Ethernet TOSHIBA TMPR3904AF LAN controller TOSHIBA TC35815AF Transceiver TDK TSC78Q2120 Flash ROM 2MB × 2 DRAM 139.5(W) × 93.0(D) × 24.7(H)mm (excluding mounting Dimensions materials and connector.) Weight About 0.1kg Power supply...
Page 465 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix c)Status LEDs ER LK 100 TX RX Status LEDs Figure 5-57 Status LEDs •ER (Error) LED When the ethernet board is operating normally: ER may flash several times during initialization, then go off. When the ethernet board is not operating normally: ER lights or flashes all the time.
Page 466 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 4.1.4 Maintenance and Service a) Troubleshooting Every time the main unit is switched ON, the ethernet board automatically performs a self-diagnostic test. If the self-diagnostic test detects no errors, the LK LED lights and stays on. After the main unit is switched ON, the ER LED starts flashing and continues flashing until the ethernet board is ready to operate.
Page 467 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b) Connector locations J1(RJ45 connector) Figure 5-58 Connector Locations 5-126...
Page 468 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix c) Signal description Ethernet board(J1) ,/ Network Network Signal name Description Network TX+ Send Data Line(+) Network TX- Send Data Line(-) Network RX+ Receive Data Line(+) Network N.C. Not used Network N.C. Not used Network RX- Receive Data Line(-) Network...
Page 469 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Ethernet board(J3) ,/ Adapter board connector(J2) Signal name Description (Reserved) Ground Data bit 1 Data bit 3 B10 . Data bit 5 B11 . Data bit 7 B12 . Data bit 9 B13 . Data bit 11 B14 .
Page 470 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 4.2 Adobe PostScript 3 Module I 4.2.1 Safety and precautions Danger by Static Charge Static charge can change the electrical characteristics of the DIMM or damage it. Do not handle the DIMM under circumstances where static charge might occur easily.
Page 471 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b) Installation Unplug the power cord and remove any interface cables from the b-1) rear of the printer. Remove the telephone line from the fax jack marked b-2) Remove end of the handset connector cord from the extension b-3) phone jack marked and remove the handset from the handset...
Page 472 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b-6) Flip the top of the side cover outwards, then lift the cover slightly and remove it from the printer. b-7) Loosen the screw at the top of the memory slot cover. Loosen the screw with a large coin, or similar object, then use your fingers to rotate the screw until the cover opens.
Page 473 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Remove the ROM DIMM from its packaging and insert it into the b-9) socket by pushing it into the middle of the three slots at the top right of the motherboard until it snaps into place. •...
Page 474 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b-11) Tighten the screw at the top of the memory slot cover to secure it in position. • Replace the side cover after you have finished adding the DIMM boards. • Plug in the power cord and any interface cables you removed NOTE from the rear of the printer.
Page 475 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 4.2.3 Technical Information a) Specifications Type ROM DIMM, 72-pin Capacity Font 136fonts Adobe PostScript Level 3 b) Operations This DIMM contains 136 types of PS fonts and a program to interpret PostScript Level 3 (PS). By connecting this DIMM to the main unit, the main unit can be used as a PS printer other than PCL.
Page 476 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 4.3 Flash ROM Module FR5 4.3.1 Safety and precautions Danger by Static Charge Static charge can change the electrical characteristics of the DIMM or damage it. Do not handle the DIMM under circumstances where static charge might occur easily.
Page 477 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b) Installation Please refer to Adobe PostScript 3 Module I step b-8) for the procedures up to opening the side cover. Remove the Flash ROM from its packaging and insert it into the b-1) socket by pushing it into the bottom of the three slots at the top right of the motherboard until it snaps into place.
Page 478 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b-3) Tighten the screw at the top of the memory slot cover to secure it in position. • Replace the side cover after you have finished adding the ROM module. • Plug in the power cord and any interface cables you removed NOTE from the rear of the printer.
Page 479 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Press Item until you see FORMAT FLASH in the bottom line. CONFIG MENU FORMAT FLASH Press Enter to select FORMAT FLASH. 5. The following message will appear asking you confirm that you want to format the Flash ROM. +FORMAT FLASH -IGNORE FLASH To select +FORMAT FLASH, press Value to format, or reformat, the...
Page 480 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 8. After the Flash ROM has been formatted, the following message is displayed and the printer will automatically restart. FLASH FORMAT RESTART When the printer restarts, the Alarm indicator blinks, then goes out. When the Alarm indicator goes out, WARMING UP…...
Page 481 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 4.4 RAM DIMM Module 4.4.1 Safety and precautions Danger by Static Charge Static charge can change the electrical characteristics of the DIMM or damage it. Do not handle the DIMM under circumstances where static charge might occur easily.
Page 482 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b) Installation Please refer to Adobe PostScript 3 Module I step b-8) for the procedures up to opening the side cover. b-1) Open the tab on the right side of the memory slot by the moving it to the right.
Page 483 Legal 8 MB 12 MB Canon recommends adding more memory than listed above. NOTE Even with a total of 8 MB, you may need to install additional memory if you frequently print complicated documents that contain large amounts of data.
Page 484 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 4.4.4 Maintenance and service a) Troubleshooting The main unit does not recognize the optional memory <Possible causes> 1.Defective optional memory Action: Replace the optional memory 2.Defective PDL board Action: Replace PDL board "OPTION RAM ERROR" <Possible causes>...
Page 485 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 4.5 Printer Board I This unit is equipped with a LASER CLASS 3175MS as standard. The LASER CLASS 3170/3175 are set as options. 4.5.1 Safety and precautions When attaching this unit to the main unit, take care not to touch the hands with the power supply elements (heat sink, etc.).
Page 486 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Right cover Figure 5-63 Preparations for Installation 1 (4) Remove the five screws and remove the shield cover. Shield cover Figure 5-64 Preparations for Installation 2 5-145...
Page 487 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b-3) Attaching the option (1) Insert the option into the main unit. Attach the option by aligning it with the hooks in the circles in the figure and sliding it in the figure indicated by the black arrow.
Page 488 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Cold Reset may be any of the following three types: •Cold Reset Used to rest all settings except the recording paper size under PAGE COUNT and TEST PRINT of TEST MENU back to their factory default settings. •Cold Reset A4 Used to set the recording paper size under TEST PRINT to A4 and to reset all other settings to factory default settings.
Page 489 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 4.5.3 Technical informations a) Configuration and construction 1. Product name PRINTER BOARD I 2. External view 2.56" (65mm) 7.56" (197mm) Figure 5-66 External View 5-148...
Page 490 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b) Specifications RISC processor: Intel 960HD-50 Standard: 4MB Maximum: 36MB ROM DIMM socket 3 RAM DIMM socket 2 Host interface Standard: IEEE 1284 parallel interface Option: expansion interface (10BASE-T, 100BASE-TX) Language Standard: PCL 5e plus PCL-XL Option: Adobe PostScript Level 3 Resident fonts 45 Scalable fonts (MicroType fonts), 8 Bitmap font...
Page 491 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix c) Operations •Outline When this unit is attached to the main unit, the main unit can be used as a PCL printer. This unit has a centronics interface, and can be used as a local printer by connection with a PC.
Page 492 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix •The Flow of Print Data The main unit’s printing operations are done totally independently when faxing and printing, but data communications between the PDL board and the ECNT board are all done through the SCNT board. When printing, when PDL data is sent from the PC go the PDL board (when using the optional ethernet board), the PDL board converts the PDL data into print data and sends this converted data to the TWINS board.
Page 493 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix b.Image Signal (1) The image signal (nVDO) is sent from the PDL board to the TWINS board selector IC. (2) The image signal (nVDO) from the fax (SCNT board) and the image signal (nVDO) from the printer (PDL board) are switched by the selector IC. (3) The nBD and nTOP signals from the ECNT board are separated by the TWINS board and sent to the SCNT board and the PDL board.
Page 494 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix •Menus Operation Flow Figure 5-70 PDL Menus Flow 5-153...
Page 495 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix d) Components Video controller circuit receives print data consisting of code or image data from external device (such as host computer) via interface cable. The circuit analyzes and processes the print data including the data specified by the operation panel, and then converts them to the dot data.
Page 496 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix EEPROM (IC10) EEPROM is 4-Kbytes, and is used for storing the factory default value and the user set value defined on the operation panel. EEPROM IC10 ASIC ROM DIMM0 ROM DIMM1 ROM DIMM2 RAM DIMM0 RAM DIMM1 Figure 5-71 Components 5-155...
Page 497 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix for Option for job Separator for Ethernet Board for Option (72pin, 2slots) (50pin, JSIO) (50pin, PSIO) (72pin, 2slots) <J7/8> <J4/5> Extension I/O Extension I/O RAM DIMM ROM DIMM Adapter PCB (72pin, 1slot) ROM DIMM <J3>...
Page 498 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 4.5.4 Maintenance and service a) Test print The following items can be printed by selecting and executing a TEST MENU: •SHOW PAGE COUNT Displays the total number of printed pages when used as a printer. The total page number is only shown briefly on the display but does not print.
Page 499 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix Use the Test Print to verify the operation panel selections, system configurations (memory and options), and print quality. Figure 5-73 Test Print 5-158...
Page 500 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix •Cleaning Page When the dirty fixing unit is the cause of image defect, the fixing unit can be cleaned by the user. The toner on the upper pressure roller can be removed by printing the cleaning pattern in figure 5-74 Cleaning Page and re-feeding the paper (cleaning page).
Page 501 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix (1) Press the Go button to set the printer off-line. The On line indicator should be OFF and PAUSED appears in display. (2) Press the Menu button until you see “TEST MENU” in the top line. (3) Go to the “CLEANING PAGE”...
Page 502 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix "5F-52 ERROR" (Scanner unit malfunction) <Possible causes> 1.Poor contact in LASER/scanner unit connectors Action: Reconnect the BD board connector J551, LASER driver board connector J501 and scanner motor connector J401. 2.Poor contact in ECNT board connector Action: Reconnect the ECNT board connector J53 correctly.
Page 503 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix "5F-56 ERROR" (Duplexing unit exhaust fan (FM701) malfunction) <Possible causes> 1.Poor contact in the connectors of the FM701 drive signal line Action: Reconnect the intermediate connectors J718 and J719, then the duplexing unit driver board connector J707. 2.Defective fan motor Action: Replace the exhaust fan.
Page 504 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 4.Defective ECNT board Action: Replace the ECNT board 5.Defective SCNT board Action: Replace the SCNT board. 6.Defective TWINS board Action: Replace the TWINS board. 7.Defective PDL board Action: Replace the PDL board. "5F-61 ERROR” (Envelope Option error) <Possible causes>...
Page 505 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.Defective paper feeder driver board Action: Replace the paper feeder driver board. 4.Defective ECNT board Action: Replace the ECNT board. 5.Defective SCNT board Action: Replace the SCNT board. 6.Defective TWINS board Action: Replace the TWINS board. 7.Defective PDL board Action: Replace the PDL board.
Page 506 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix "TONER CARTRIDGE MISSING" message appears when it is installed <Possible causes> 1.Poor contact between the printer contact and the cartridge contact Action: Clean the contacts if dirty. Replace the part(s) if deformed or damaged, or the problem still remains after cleaning. 2.Defective cartridge Action: Replace the cartridge.
Page 507 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 2.Defective printer cover Action: Replace the printer cover sensor. 3.Defective ECNT board Action: Replace the ECNT board. 4.Defective SCNT board Action: Replace the SCNT board. 5.Defective TWINS board Action: Replace the TWINS board. 6.Defective PDL board Action: Replace the PDL board.
Page 508 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.Defective paper size detection board Action: Replace the paper size detection board. 4.Defective ECNT board Action: Replace the ECNT board. 5.Defective SCNT board Action: Replace the SCNT board. 6.Defective TWINS board Action: Replace the TWINS board. 7.Defective PDL board Action: Replace the PDL board.
Page 509 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.Defective paper feeder driver board Action: Replace the paper feeder driver board. 4.Defective paper size detection board Action: Replace the paper size detection board. 5.Defective ECNT board. Action: Replace the ECNT board. 6.Defective SCNT board Action: Replace the SCNT board.
Page 510 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 2.Damaged top cover sensor lever of the duplexing unit Action: Replace the top cover. 3.Defective face-up tray paper sensor Action: Replace the sensor. 4.Defective duplexing unit driver board Action: Replace the duplexing unit driver board. "PAPER JAM"...
Page 511 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix 3.Defective reversing paper sensor Action: Replace the sensor. 4.Defective duplexing unit pick-up paper sensor 1 Action: Replace the sensor. 5.Defective duplexing unit driver board Action: Replace the duplexing unit driver board. 6.Defective ECNT board Action: Replace the ECNT board.
Page 512 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix PDL board(J2) ,/ TWINS board connector(J33) Signal name Description Ground Horizontal sync signal nPPRDY Printer power ready signal nRDY Ready signal nTOP Vertical sync signal nSBSY Status busy signal nSTS Status signal PDL board(J2) ,/ TWINS board connector(J33) Signal name Description nPCLK...
Page 513 LASER CLASS 3170/3175/3175MS Chapter 5: Appendix This page intentionally left blank 5-172...
Page 514 Printed on paper that contains 60% reused paper. PRINTED IN JAPAN (IMPRIME AU JAPON) 0999AT0.00-0 CANON INC.

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Laser class 3170 Laser class 3175ms

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Installation

Setting up the Fax

Unpacking

Removing the Shipping Material

Assembling the Fax

Checking Operations

Moving the Fax Unit

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