Xerox Document FaxCentre 165c Service Manual
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Xerox Document FaxCentre 165c Service Manual

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XEROX
Document FaxCentre 165
and
Document WorkCentre 165c
SERVICE MANUAL
Part Number : 602E48370

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Summary of Contents for Xerox Document FaxCentre 165c

  • Page 1 XEROX Document FaxCentre 165 Document WorkCentre 165c SERVICE MANUAL Part Number : 602E48370...
  • Page 3 PREFACE This manual is intended for service engineers responsible for installing, servicing and repairing the facsimile machines described herein. The manual consists of thirteen chapters which describe: • Chapter 1: the General Features and Technical Specifications • Chapter 2: the facsimile machine's Internal and external structure •...

  • Page 4: Table Of Contents

    3.1.2 Connecting to the Telephone Line ............3-2 3.1.3 Connecting the Power Cord ..............3-4 3.1.4 Installing the Print Head ...............3-4 3.1.5 Inserting the Output Trays ..............3-9 3.1.6 Loading Paper ...................3-10 3.1.7 Feeding special papers manually on the LinkFax model ......3-10 XEROX DFC165 & DWC165c Service Manual...
  • Page 5 SYSTEM TEST AND ADJUSTMENTS..... 6-1 SYSTEM TEST ................. 6 -1 6.1.1 ALIGNMENT TEST ................6-2 6.1.2 NOZZLES TEST ...................6-4 6.1.3 CLEANING ...................6-6 6.1.4 PRINT CHART ..................6-7 6.1.5 ASF TEST ....................6-9 6.1.6 ADF TEST ...................6-9 6.1.7 LOAD DEFAULT .................6-10 XEROX DFC165 & DWC165c Service Manual...
  • Page 6 7.2.13 Removing the Carriage, Paper and Ink Drain Motors ......7-23 7.2.14 Removing the Scanner Motor ..............7-24 7.2.15 Removing the Print Carriage ...............7-24 OPTIONAL DEVICES ...........8-1 SETTING UP A BACK TO BACK CONNECTION ......8-2 XEROX DFC165 & DWC165c Service Manual...
  • Page 7 IN WINDOWS 95 ENVIRONMENT..... 10-1 11. INSTALLATION OF THE LINKFAX 8 MODULE IN WINDOWS 3.1X ENVIRONMENT....11-1 12. USER GUIDE OF THE LINKFAX 8 MODULE IN WINDOWS 3.1X ENVIRONMENT....12-1 13. SPARE PARTS LISTINGS........13-1 viii XEROX DFC165 & DWC165c Service Manual...

  • Page 8: Introduction

    This memory is powered by a backup battery in the event of a power failure. • Half tones In the scanning of documents, a scale of 64 half tones can be used for a higher XEROX DFC165 & DWC165c Service Manual...

  • Page 9: Technical Specifications

    (PBX) Compatibility ITU-TS G3 standard Type of modulation CCITT V29 / V27ter Transmission speed 2400 / 4800 / 7200 / 9600 bps ) with the document output tray ) with extension > > XEROX DFC165 & DWC165c Service Manual...
  • Page 10 200 x 100 / 200 dpi Actual printing area 208 x 290 (A4) / 273 (Letter US) / 349 (Legal) mm Memory Capacity 512 kbytes (about 360 kbytes as user memory) pow- ered by a backup battery > > XEROX DFC165 & DWC165c Service Manual...
  • Page 11 C to +45 ° ° Transport:from -15 C to +45 Relative humidity Operating: from 15% to 85 % (without condensation) Storage: from 15% to 85 % (without condensation) Transport: from 5% to 95 % (without condensation) XEROX DFC165 & DWC165c Service Manual...

  • Page 12: Quick Reference Guide

    LAST TX S. DIAL EXT. HOLD 2. Type on the numeric keypad the number of copies PAUSE 2.TONE REDIAL to start (max. 50 copies) ê ERROR STOP START HOOK 3. Press the START key. XEROX DFC165 & DWC165c Service Manual...

  • Page 13: General Description

    Automatic sheet feeder Automatic Document Feeder (ADF) guides (ASF) cover Console Document tray Received and copied document tray Telephone TAD socket Line socket TEL2 socket TEL1 LINE Fig. 2-1 External parts of the facsimile machine XEROX DFC165 & DWC 165c Service Manual...

  • Page 14: Console

    * - #) or user name setting (ABC - DEF - GHI - JKL - MNO - PQRS - TUV - WXYZ - P→ T - &...) 10 keys for one-touch dialling 1 LED for indicating an ERROR. XEROX DFC165 & DWC165c Service Manual...

  • Page 15: Functions Of The Console Keys

    Clears incorrect settings. • RESOL. Selects the type of resolution. ƒ < Moves the cursor left during entry of the user's name and number. „ - VOLUME Reduces the volume of the speaker. > > XEROX DFC165 & DWC 165c Service Manual...
  • Page 16 START key is pressed. ƒ Used for programming a one-touch dialling number. • Switches off the ERROR LED. Stops copying, sending or receiving a document. ƒ STOP Sets the facsimile machine in standby mode. > > XEROX DFC165 & DWC165c Service Manual...
  • Page 17 After the receiver has been lifted, sets the facsimile machine in manual reception mode. ƒ Confirms menus, submenus, parameters and values. „ Sets the facsimile in manual reception mode. XEROX DFC165 & DWC 165c Service Manual...

  • Page 18: Electromechanical Parts

    2.2 ELECTROMECHANICAL PARTS 2.2.1 Motors Rear right-hand side paper motor carriage motor Rear left-hand side ink drain motor scanner motor Fig. 2-3 Locating the motors XEROX DFC165 & DWC165c Service Manual...

  • Page 19: Sensors

    Fig. 2-4 Locating the console sensors Printer cover sensor paper sensor (under paper guide cradle) Fig. 2-5 Locating the paper and printer sensors paper edge sensor Fig. 2-6 Locating the carriage sensor XEROX DFC165 & DWC 165c Service Manual...

  • Page 20: Speaker

    2.2.3 Speaker speaker Fig. 2-7 Locating the speaker XEROX DFC165 & DWC165c Service Manual...

  • Page 21: Electronic Parts

    Console board CCD board Power supply board Print head driver board (in the print carriage) Network control unit (NCU) board Parallel port card (LinkFax model, only) Motherboard LED array for illuminating the documents. XEROX DFC165 & DWC 165c Service Manual...

  • Page 22: General Block Diagram

    • Console board, with the display head driver board (in the carriage) and the carriage drive mechanism. • Power supply board • Parallel port card, for connectiion to the PC (LinkFax model, only) 2-10 XEROX DFC165 & DWC165c Service Manual...

  • Page 23: Block Diagram Of The Motherboard

    NCU to the to CCD board board board parallel port card Telephone network Fig. 2-10 Block diagram of the motherboard XEROX DFC165 & DWC 165c Service Manual 2-11...
  • Page 24 6 PAPER, SCANNER AND INK DRAIN (32.768 kHz) MOTOR DRIVERS 13 CPU (WITH BUILT-IN MODEM AND 7 BACK-UP RECHARGEABLE BATTERY IMAGE PROCESSOR) FOR DYNAMIC RAM (Ni-Cd, 3 volts, 72-hour duration) 14 CARRIAGE MOTOR DRIVER 2-12 XEROX DFC165 & DWC165c Service Manual...
  • Page 25 72 hours. The facsimile machine must be left powered for 24 hours to recharge this battery. The data is retained in the static memory by the 5-year duration system battery. XEROX DFC165 & DWC 165c Service Manual 2-13...

  • Page 26: Block Diagram Of The Network Control Unit Board

    The figure shows the block diagram of a generic NCU board. external TAD interface Current detector Call detector Receiver detector relay Selector relay Line transf. Selector relay Amplifier Fig. 2-12 Block diagram of a generic NCU board 2-14 XEROX DFC165 & DWC165c Service Manual...

  • Page 27: Block Diagram Of The Power Supply Board

    - +24 VDC (±2%), for the print head - +12 VDC (±10%), for CCD, NCU and logic circuits - -12 VDC (+10% -15%), for CCD and logic circuits - +5 VDC (±5%) for sensors and logic circuits. XEROX DFC165 & DWC 165c Service Manual 2-15...
  • Page 28 Fig. 2-12a Locating the power supply components 1 Mains filter 4 Stabilizer 7 Fuse (2 A) 2 Primary rectifier 5 +24 VDC regulator 8 Transformer 3 Switching controller MOS 6 Mains connector 9 Diode rectifier 2-16 XEROX DFC165 & DWC165c Service Manual...

  • Page 29: Printer Unit

    The resistor is heated and the ink that is in direct contact with it evaporates, ex- panding like a bubble and pressing the rest bubble of the ink against the nozzle. +24V XEROX DFC165 & DWC 165c Service Manual 2-17...
  • Page 30 800 microseconds after the ink has been ejected, the nozzle is ready bubble to eject another drop. 2-18 XEROX DFC165 & DWC165c Service Manual...

  • Page 31: Installation And Initialization Procedures

    • the document tray, with a pull-out extension • the received or copied document tray • the automatic sheet feeder (ASF), with a pull-out extension • the User Guide, complete with the Quick Reference Guide. XEROX DFC165 & DWC165c Service Manual...

  • Page 32: Connecting To The Telephone Line

    As the telephone connection depends on regulations that vary from one country to another, figures 3-2 and 3-3 show an intentionally generic connection: for a detailed description of the procedure, see the regulations in force in your own country. XEROX DFC165 & DWC165c Service Manual...
  • Page 33 Fig. 3-2 Connecting the telephone (case a) to telephone socket on facsimile machine telephone socket (TEL1) Fig. 3-3 Connecting the telephone (case b) XEROX DFC165 & DWC165c Service Manual...

  • Page 34: Connecting The Power Cord

    3) Open the box and remove the print head, holding it by the grip, then remove the label covering the nozzles (see Fig. 3-4) Fig. 3-4 Removing the protective label WARNING: do not touch the electrical contacts or the print head nozzles XEROX DFC165 & DWC165c Service Manual...
  • Page 35 5) Taking care not to obstruct the hole on the top, insert your index finger in the recess on the print head and pull it until you hear it clearly click into position (Fig. 3-6) Fig. 3-6 Fixing the print head in position XEROX DFC165 & DWC165c Service Manual...
  • Page 36 − a section of graphics and text, for evaluating print quality • the following message appears CHECK PRINTOUT 1=EXIT 0=REPEAT (*) only if bit 2 of SW09 is set to 1. XEROX DFC165 & DWC165c Service Manual...
  • Page 37 (Fig. 3-7); print head cleaning pad Fig. 3-7 Cleaning the print head cleaning pad reinsert the print head. XEROX DFC165 & DWC165c Service Manual...
  • Page 38 (see Fig. 3-9); contacts on print carriage Fig. 3-9 Cleaning the contacts on the print carriage reinsert the print head. Replace the print head Replace the print carriage (see section 7.2.15). XEROX DFC165 & DWC165c Service Manual...

  • Page 39: Inserting The Output Trays

    (see Figs. 3-10 and 3-11) guide tabs received or copied document tray Fig. 3-10 Inserting the received or copied document tray slot document tray slot Fig. 3-11 Inserting the document tray XEROX DFC165 & DWC165c Service Manual...

  • Page 40: Loading Paper

    Fig. 3-12 Preparing the automatic sheet feeder 2) Reassemble the cover and insert the ASF in its housing, then tilt the cover forward and load the paper of the desired size (max 70 sheets)(Fig. 3-13) 3-10 XEROX DFC165 & DWC165c Service Manual...

  • Page 41: Feeding Special Papers Manually On The Linkfax Model

    (see chapter 10, Using the facsimile machine as a printer, Printing with LinkFax 8). XEROX DFC165 & DWC165c Service Manual 3-11...

  • Page 42: Installing And Setting Up The Machine

    •by confirming a menu, you access the corresponding submenu •by confirming a submenu, you access the corresponding parameters •by confirming a parameter or its value, you access the next parameter 3-12 XEROX DFC165 & DWC165c Service Manual...
  • Page 43 PARAMETERS START FUNC START START VALUES START < > > > STOP START EXIT FROM MODE The figure that follows provides a detailed illustration of the organization of the installation and setup parameters. XEROX DFC165 & DWC165c Service Manual 3-13...
  • Page 44 PRINT SETTINGS TYPE PASSWORD PRINT: ONE TOUCH FORMAT: DD/MM/YY COUNTRY SET-UP PRINT: SPEED DIAL FORMAT: 24H SERVICE SWITCHES PRINT: EXIT SYSTEM TEST PRINT SERV. SW PRINT PROT. DUMP HEAD MAINTENANCE PRINT COUNTERS CLEANING 3-14 XEROX DFC165 & DWC165c Service Manual...

  • Page 45: Setting The Country Parameters

    COUNTRY SETUP - press in rapid sequence STOP # # START/STOP/← /→ AUTOMATIC RX - press START. 09-05-95 14:58 XEROX DFC165 & DWC165c Service Manual 3-15...

  • Page 46: Storing The User's Number And Name

    - to correct an error, move the cursor to the character to be changed using the > and < keys, and select the desired character. 3-16 XEROX DFC165 & DWC165c Service Manual...

  • Page 47: Setting Up The Telephone Line

    · pulse (PBX/PSTN DIAL: PULSE) - type of access from private line to public line: · numeric prefix (EXT. LINE: PREFIX) · earth pulse (EXT. LINE: EARTH) · flash pulse (EXT. LINE: FLASH). XEROX DFC165 & DWC165c Service Manual 3-17...
  • Page 48 RING COUNT 02 RING COUNTY:04 RING COUNT:08 FAX/TEL/FAX: 15 FAX/TEL TIMER: 20 FAX/TEL TIMER: 30 FAX/TEL TIMER: 40 SILENCE LAPSE: 4 SILENCE LAPSE: 6 SILENCE LAPSE 8 SILENCE LAPSE: 10 E LAPSE: 3 SILENCE LAP 3-18 XEROX DFC165 & DWC165c Service Manual...

  • Page 49: Completing Installation

    Press STOP to return to stand-by mode. 09-05-95 14:58 WARNING: having installed the machine successfully, never repeat the reset procedure or you will have to reset all personal data set by the user. XEROX DFC165 & DWC165c Service Manual 3-19...

  • Page 50: Service Switches

    Select the PRINT SERV. SW option START/STOP/← /→ f) Press the START key: the current default values will be PRINTING... printed (see fig. 4-1) STOP AUTOMATIC RX g) Press STOP to return to standby mode. 09-05-95 14:58 XEROX DFC165 & DWC165c Service Manual...
  • Page 51 2) Some of the service switches can be set by the user; in these cases, the user setting takes priority over the service setting. The parameters concerned are: User parameter Software parameter RING COUNT FAX/TEL TIMER SILENCE LAPSE XEROX DFC165 & DWC165c Service Manual...

  • Page 52: Service Switch Tables

    1 0 = 0 1, 1.8 km (4 dB) (radius of cable = 0.4 mm) bit 1 0 = 1 0, 3.6 km (8 dB) bit 1 0 = 1 1, 5.6 km (12 dB) XEROX DFC165 & DWC165c Service Manual...
  • Page 53 1 0 = 0 0, 9600 bps Transmission bit 1 0 = 0 1, 7200 bps start speed bit 1 0 = 1 0, 4800 bps bit 1 0 = 1 1, 2400 bps XEROX DFC165 & DWC165c Service Manual...
  • Page 54 2 1 = 1 1, 130 s (*) Frequency of the tone emitted by the receiver 1100 Hz 2100 Hz during reception (CED) (*) In some countries these bits are set to a single specific value. XEROX DFC165 & DWC165c Service Manual...
  • Page 55 Pulse dialling frequency 20 p/s (*) 10 p/s Report printing inhibited always (**) PBX dialling tone detection only valid if the value of switch SWP is halved. (**) as programmed via TX REPORT user parameter. XEROX DFC165 & DWC165c Service Manual...
  • Page 56 1 0 = 0 1, 2 s bit 1 0 = 1 0, 3 s bit 1 0 = 1 1, 4 s (*) only valid if dial tone detection is not enabled (SW06, bit 2 = 0). XEROX DFC165 & DWC165c Service Manual...
  • Page 57 5 4 3 = 1 0 1, 2000 ms PSTN dialling tone detection Shortcircuit between digits in pulse dialling Shortcircuit time on relay, before and after 260 / 70 ms 86 / 48 ms dialling pulse XEROX DFC165 & DWC165c Service Manual...
  • Page 58 1120:1160 Hz as for the 1st second dialling tone Belgian type dialling tone Dialling tone 40 s 10 s wait time (*) i.e., as established by the couple of bits 1 and 2 of switch SW03. XEROX DFC165 & DWC165c Service Manual...
  • Page 59 5 4 = 1 1, -35 dBm Line feed (*) 1/300" 1/150" Exit from HOOK mode after 1 h after 1 min Busy tone detected before dialling Busy tone sequence 4 sequences 2 sequences (*) LinkFax model, only XEROX DFC165 & DWC165c Service Manual 4-10...
  • Page 60 (***) Extended error codes (*) only to be used on lines with interference (**) Frequency: 425 Hz Sequence: (***) Frequency: 700 Hz Sequence: 0.1 s 0.1 s 0.1 s 0.1 s 0.1 s 4-11 XEROX DFC165 & DWC165c Service Manual...
  • Page 61 ¬ key disabled MMR compression method (*) Enable remote diagnostics Set number of rings Enable pulse mode during dialling Set silence time detection FAX/TEL switch Set call time in FAX/TEL mode (*) LinkFax model, only XEROX DFC165 & DWC165c Service Manual 4-12...
  • Page 62 HOLD - 2.TONE key Enable entry of sender's number In order to prevent the secret card code from being either displayed or printed, only the last 10 digits of the telephone number are displayed or printed. 4-13 XEROX DFC165 & DWC165c Service Manual...
  • Page 63 Format Function max 3 digits Second ring detection time (001 : 255) (in tens of ms) Switch SWE Format Function max 3 digits Ring reset time (in hundreds of ms) (001 : 255) XEROX DFC165 & DWC165c Service Manual 4-14...
  • Page 64 (*) 03 : 15 for Italy. Switch SWI Format Function max 3 digits Minimum ring duration (010 : 100) (in ms) Switch SWJ Format Function max 3 digits Maximum ring duration (010 : 100) (in ms) 4-15 XEROX DFC165 & DWC165c Service Manual...
  • Page 65 Function max 2 digits Time between two calls while (01 : 99) broadcasting (in seconds) Switch SWO Format Function max 2 digits Silence recognition time in (01 : 59) FAX/TAD mode (in seconds) XEROX DFC165 & DWC165c Service Manual 4-16...
  • Page 66 10 p/s frequency. Switch SWQ Format Function max 2 digits Number of redials (00 : 99) Switch SWR Format Function max 3 digits Time between redials (in seconds) (000 : 999) (000 = no redials) 4-17 XEROX DFC165 & DWC165c Service Manual...

  • Page 67: Diagnostics

    (in this case you must replace the console board or the flat cable that connects it to the motherboard). The self-diagnostic routine tests the following components: • EPROM • keyboard • printer. The self-diagnostic test stops at the first test in which a fault is detected. XEROX DFC165 & DWC165c Service Manual...

  • Page 68: Description Of The Self-Diagnostic Program

    (*) This error also occurs if the print head is mounted the wrong way round, that is, with the contacts facing the rear; consequently, start by checking that the print head is positioned correctly. XEROX DFC165 & DWC165c Service Manual...

  • Page 69: Error Codes

    (5.2.1). Important: to ensure correct identification of the cause of the error, we recom- mend you always print the communication protocol (PROTOCOL DUMP, see section 5.2.3). XEROX DFC165 & DWC165c Service Manual...

  • Page 70: Meaning Of Protocol Signal Codes

    Transmitting Subscriber Identification Digital Transmit Command POLLING COMMANDS Digital Command Signal TRANSMISSION COMMANDS Confirmation To Receive PRE-MESSAGE ANSWERS Failure To Train Continue To Correct End-of-Message End-of-Procedure End-of-Retransmission POST-MESSAGE COMMANDS Multipage Signal Partial Page signal >> XEROX DFC165 & DWC165c Service Manual...
  • Page 71 Procedure Interrupt Receive Ready Response to CTC Response to EOR Message Confirmation Procedure Interrupt Negative Procedure Interrupt Positive POST-MESSAGE ANSWERS Partial Page Request Receive Not ready Retrain Negative Retrain Positive Disconnect DISCONNECTION XEROX DFC165 & DWC165c Service Manual...

  • Page 72: Meaning Of Error Codes

    No answer during Call again post-message phase 04.08 Answer not allowed during Call again post-message phase 04.09 No development of protocol Call again 04.10 Answer not allowed during Call again post-message phase in ECM >> XEROX DFC165 & DWC165c Service Manual...
  • Page 73 (5 seconds without data) 10.06 No signal during Call again reception of the message 10.07 No commands received Call again from correspondent at start of message 10.08 No document present on None polling request >> XEROX DFC165 & DWC165c Service Manual...
  • Page 74 Clear unwanted documents user memory full from the memory 11.10 Riception incomplete due to Clear unwanted documents user memory full in ECM from the memory 13.00 Failed polling reception Call again 16.00 Power failure None XEROX DFC165 & DWC165c Service Manual...

  • Page 75: Printing The Communication Protocol

    Indicates the signals, represented by a hexadecimal code and a mnemonic code, sent by the local facsimile machine REMOTE Indicates the signals sent by the correspondent's facsimile machine Indicates the structure of the signals (FIF = Facsimile Information Field) in hexadecimal code. XEROX DFC165 & DWC165c Service Manual...
  • Page 76 • positive result (00 00) • positive result with document received incorrectly ( 00 01) • negative result (extended error code, e.g. 10 01) • busy status (06 00) • STOP key pressed status ( 09 00). 5-10 XEROX DFC165 & DWC165c Service Manual...

  • Page 77: Printing The Counters

    Make sure that there is paper in the ASFand then press PRINT PROT.DUMP START: the data shown in fig. 5-1 will be printed and then START/STOP the facsimile machine will return to standby mode. Fig. 5-4 XEROX DFC165 & DWC165c Service Manual 5-11...

  • Page 78: Reports

    (*). (*) if bit 3 of switch SW07 is set to 1 (see section 4.1), the report is always printed when transmission is failed even if the TX REPORT: OFF option is selected. 5-12 XEROX DFC165 & DWC165c Service Manual...
  • Page 79 (*) this is the ID recorded on the correspondent's facsimile machine, the numeric part of which should correspond to the actual telephone number of the fac- simile machine: if it does not, call the correspondent and ask him/her to correct the ID. XEROX DFC165 & DWC165c Service Manual 5-13...

  • Page 80: Broadcast Transmission Report (Last Broad. Rep.)

    Provides information about all transactions (transmission / reception) and is printed automatically every 30 transactions (and the information printed is subsequently cleared from the memory) or on request by the operator (fig. 5-7): Fig. 5-7 5-14 XEROX DFC165 & DWC165c Service Manual...

  • Page 81: Power Failure Report

    5.3.4 Power Failure Report When there is a power failure during a transaction (transmission or reception), a report is automatically printed out (see fig. 5-8) when normal operation is restored: Fig. 5-8 XEROX DFC165 & DWC165c Service Manual 5-15...

  • Page 82: Remote Diagnostics

    5 of software switch SW10 (see section 4.1). To use this function, it must be enabled by setting the REMOTE CONTROL setup parameter in the DIAGNOSTICS submenu of the main INSTALLATION menu (see section 3.2.1) to YES. 5-16 XEROX DFC165 & DWC165c Service Manual...

  • Page 83: System Test And Adjustments

    - by pressing the STOP key twice, if you want to exit from test mode and return to stand-by mode. (*) These tests are used exclusively for special production requirements or during laboratory tests and, consequently, no description is provided in this manual. XEROX DFC165 & DWC165c Service Manual...

  • Page 84: Alignment Test

    - press START: the test chart in fig. 6-2 showing both the margin alignment (the example shows VALUE 'A' = 07) and the vertical alignment (the example shows VALUE 'B' = 10) is printed out. XEROX DFC165 & DWC165c Service Manual...
  • Page 85 Fig. 6-1 Fig. 6-2 XEROX DFC165 & DWC165c Service Manual...

  • Page 86: Nozzles Test

    (1) the threefold print-out of the three print head colours (cyan, magenta, yellow) (2) three numbered scales for checking the flow of ink, with the nozzles numbered (01 to 16 for cyan, 01 to 17 for magenta, 01 to 18 for yellow) XEROX DFC165 & DWC165c Service Manual...
  • Page 87 • air bubble in the ink: carry out the CLEANING (see section 6.1.3) followed by the PRINT CHART test (see section 6.1.4); if the fault persists, repeat the CLEANING up to three times, and then replace the print head if this does not have the desired effect. XEROX DFC165 & DWC165c Service Manual...

  • Page 88: Cleaning

    6.1.4 PRINT CHART (not active with a colour print head) This test MUST be carried out after replacing: the printer unit, motherboard, carriage, carriage motor or paper motor. Setting Display AUTOMATIC RX a) The facsimile machine is in standby mode 09-05-95 14:58 XEROX DFC165 & DWC165c Service Manual...
  • Page 89 • area 8 is used for checking the printing of ASCII characters • area 9 is used for checking printing with the nozzles spraying at maximum frequency: there must be no white or broken lines; if there are, run the nozzles test (see section 6.1.2). XEROX DFC165 & DWC165c Service Manual...
  • Page 90 1 area 2 area 3 area 6 area 6 area 8 area 9 area 6 area 6 line 10 line 11 line 12 Fig. 6-4 XEROX DFC165 & DWC165c Service Manual...

  • Page 91: Asf Test

    ADF TEST the operation, a message appears indicating the number STOP of documents scanned ( xx) d) If you want to repeat the test, insert more sheets in the feeder and press START. XEROX DFC165 & DWC165c Service Manual...

  • Page 92: Load Default

    Open the console and remove the ejector roller (see section 7.2.11) d) Place a blank sheet (folded in two) onto the glass of the optical reader so that it covers the glass entirely but not the document sensor (see section 2.2.2). 6-10 XEROX DFC165 & DWC165c Service Manual...

  • Page 93: Carriage Test

    Press START: the carriage starts moving from right to left and gradually increases its field of movement until it CARRIAGE TEST reaches the left-hand side of the machine, and then it STOP repeats this procedure. XEROX DFC165 & DWC165c Service Manual 6-11...

  • Page 94: Checks And Adjustments

    2) Measure the direct voltages at connector J2 on the power supply board. +28 VDC G N D G N D G N D +24 VDC +5 VDC +12 VDC -12 VDC Fig. 6-5 6-12 XEROX DFC165 & DWC165c Service Manual...

  • Page 95: Adjusting The Ccd

    CCD board flat cable into the remaining connector on the plate (see figure 6-6) additional CCD plate flat cable flat cable connector J8 test point plate Fig. 6-6 XEROX DFC165 & DWC165c Service Manual 6-13...

  • Page 96: Checking The Alignment Of The Ccd Board

    The jig consists of several different areas (see figure 6-8) Fig. 6-8 6-14 XEROX DFC165 & DWC165c Service Manual...
  • Page 97 Fig. 6-9 3) If they do not, loosen the screws on the CCD board, turn the board to the desired position and tighten the screws (see figure 6-10) CCD board screws Fig. 6-10 XEROX DFC165 & DWC165c Service Manual 6-15...

  • Page 98: Checking The Lens Focus

    2) If it is not, loosen the two screws and move the lens to the desired position (see figure 6-12); then fix the screws in position with a drop of glue. lens screws Fig. 6-12 6-16 XEROX DFC165 & DWC165c Service Manual...

  • Page 99: Checking That The Document And The Ccd Are Centred

    (see figure 6-14), and then tighten the screws. 200mV 20µs 1.02 V EXT2 "C" VIDEO Fig. 6-14 5) Having adjusted the CCD, make the SCANNER SHADING (see section 6.1.8). XEROX DFC165 & DWC165c Service Manual 6-17...

  • Page 100: Maintenance And Replacement Procedures

    Two counters on the model, one for the monochrome print head and LinkFax another for the colour print head. XEROX DFC165 & DWC165c Service Manual...

  • Page 101: Replacing The Rechargeable Ink Cartridge

    • Press 3 times the FUNCTION key and then the START key to make the following message displayed: NEW PRINT HEAD? 1=YES 0=NO • Enter 1 and press the START key: the nozzles cleaning and checking procedure is automatically started while the counter is cleared. XEROX DFC165 & DWC165c Service Manual...

  • Page 102: Replacing The Print Head

    1) The facsimile machine is in stand-by mode 09-05-95 14:58 2) Access the main menu and select the HEAD MAINTE- HEAD MAINTENANCE NANCE submenu of the FAX SETUP menu FUNC/START/STOP 3) Press START twice to start procedure. PRINTING XEROX DFC165 & DWC165c Service Manual...

  • Page 103: Cleaning The Electrical Contacts

    3) Clean also the electrical contacts on the print carriage using a dry soft cloth (see figure 7-2). electrical contacts on carriage Fig. 7-2 4) After reinserting the print head, close the printer cover. XEROX DFC165 & DWC165c Service Manual...

  • Page 104: Cleaning The Print Head Cleaning Pad

    2) Remove the print head and move the carriage to the right-hand side (see figure 7-3) Fig. 7-3 3) Clean the print head cleaning pad using a dry cotton swab (see figure 7-4). Close the printer cover. print head cleaning pad Fig. 7-4 XEROX DFC165 & DWC165c Service Manual...

  • Page 105: Cleaning The Optical Unit

    Fig. 7-5 3) Clean the eject roller and the glass of the optical unit using a cloth dampened with a specific glass cleaning product, and then carefully wipe dry (see figure 7-6) Fig. 7-6 XEROX DFC165 & DWC165c Service Manual...
  • Page 106 2) Remove the scanning plate (see section 7.2.10) 3) Remove the document ejector roller (see section 7.1.7.1) 4) Lift the right-hand side of the glass and slide it out from the left (fig. 7-8) lift glass on this side Fig. 7-8 XEROX DFC165 & DWC165c Service Manual...
  • Page 107 5) Loosen the two screws and remove the roller shield (see fig. 7-9) screw roller shield scre screw Fig. 7-9 6) Slide out the roller shaft and remove the left gear (see fig. 7-10) roller shaft gear Fig. 7-10 XEROX DFC165 & DWC165c Service Manual...
  • Page 108 8) Clean the three mirrors using a dry cotton swab (see fig. 7-12). mirror mirror mirror ground plate Fig. 7-12 Warning: during reassembly, make sure that the left ground plate is positioned under the glass (see fig. 7-12). XEROX DFC165 & DWC165c Service Manual...

  • Page 109: Disassembly And Replacement Procedures

    Parallel port card J10 Scanner motor Carriage motor J11 Speaker Paper motor J13 Console Print head J14 CCD board Power supply board J15 NCU board Ink drain motor J16 Paper and printer cover sensors 7-10 XEROX DFC165 & DWC165c Service Manual...
  • Page 110 Motors Scanner Paper Paper and Speaker Ink drain printer Carriage cover sensors Print head MOTHERBOARD NCU BOARD CONSOLE BOARD TEL2 (Telephone answering device) Display TEL1 (Telephone) LINE (Telephone line) Fig. 7.14 Wirings diagram XEROX DFC165 & DWC165c Service Manual 7-11...

  • Page 111: Removing The Casing

    (see fig. 7-16) and that the flat cables running along the sides of the base are not bent. slot Fig. 7-16 7-12 XEROX DFC165 & DWC165c Service Manual...

  • Page 112: Removing The Power Supply/Ncu Assembly

    3) Remove the two screws securing the parallel port, the four upper screws that secure the printer unit and the two lateral screws that fix the unit to the base (see fig. 7-18) screws screw screw Fig. 7-18 XEROX DFC165 & DWC165c Service Manual 7-13...
  • Page 113 (see fig. 7-20, a) and that the three tabs on the cover are correctly inserted into the slots on the unit (see fig. 7-20, b). slots tabs slots tabs Fig. 7-20 7-14 XEROX DFC165 & DWC165c Service Manual...

  • Page 114: Removing The Power Supply And Ncu Boards

    2) Unscrew the two screws on the shield and remove it (see fig. 7-21) shield screw screw Fig. 7-21 3) For the power supply board, remove the two screws and ground plate (see fig. 7-22) screws ground plate power supply board Fig. 7-22 XEROX DFC165 & DWC165c Service Manual 7-15...

  • Page 115: Removing The Motherboard

    2) Remove the screw on the base (fig. 7-24), free the cables from their clips, unplug all the motherboard connectors and flat cables and pull the motherboard out from the rear screw Fig. 7-24 7-16 XEROX DFC165 & DWC165c Service Manual...
  • Page 116 PRINT CHART (par. 6.1.4) and SCANNER SHADING (par. 6.1.8). Warning: during reassembly, make sure that the edge of the motherboard is correctly inserted under the three tabs on the base (see fig. 7-25a). tabs Fig. 7-25a XEROX DFC165 & DWC165c Service Manual 7-17...

  • Page 117: Removing The Console

    (see fig. 7-26) catches console base Fig. 7-26 3) Unplug the flat cable from the console board so that you can remove the board (see fig. 7-27). flat cable console board Fig. 7-27 7-18 XEROX DFC165 & DWC165c Service Manual...

  • Page 118: Removing The Console Board

    Fig. 7-28 7.2.8 Removing the Display 1) Remove the console board (see section 7.2.7) 2) Press on the side of the display catch and remove the display (see fig. 7-29). display catch Fig. 7-29 XEROX DFC165 & DWC165c Service Manual 7-19...

  • Page 119: Removing The Scanner Unit

    (see fig. 7-31). ground wire ground wire Fig. 7-31 6) After replacing the Scanner Unit, perform the ADF TEST (par. 6.1.6) and SCANNER SHADING (par. 6.1.8). 7-20 XEROX DFC165 & DWC165c Service Manual...

  • Page 120: Removing The Ccd Board

    2) Release the left bushing on the document ejector roller, by turning it towards the front and slide the roller out from the right-hand side (see fig. 7-33) document ejector roller bushing Fig. 7-33 XEROX DFC165 & DWC165c Service Manual 7-21...

  • Page 121: Removing The Printer Unit

    4) Remove the screw and ground plate (see fig. 7-35), then remove the LED array. LED array ground screw plate Fig. 7-35 7.2.12 Removing the Printer Unit 1) Remove the power supply unit (see section 7.2.3) 2) Remove the scanner unit (see section 7.2.9) 7-22 XEROX DFC165 & DWC165c Service Manual...

  • Page 122: Removing The Carriage, Paper And Ink Drain Motors

    3) After replacing the carriage motor, perform the ALIGNMENT TEST (par. 6.1.1) and PRINT CHART (par. 6.1.4). After replacing the paper motor, perform the PRINT CHART (par. 6.1.4) and ASF TEST (par. 6.1.5). XEROX DFC165 & DWC165c Service Manual 7-23...

  • Page 123: Removing The Scanner Motor

    3) Unplug the two flat carriage cables from the motherboard 4) Unscrew the ink drain motor from its support and move it to one side so that you can get at the screw behind it 7-24 XEROX DFC165 & DWC165c Service Manual...
  • Page 124 6) Remove the ground plate and tilt the front panel forward, then bend the right-hand support to free the print carriage rail from both supports (see fig. 7-40) carriage shaft right-hand support front panel rail Fig. 7-40 XEROX DFC165 & DWC165c Service Manual 7-25...
  • Page 125 1) Remove the motherboard, unplug the short-pin P (see fig. 7-42) and plug it again after one second to be sure that the dynamic memory has been cleared Fig. 7-42 7-26 XEROX DFC165 & DWC165c Service Manual...
  • Page 126 6) Restore all configuration parameters to their original current values (refer to the configuration print-outs tou have obtained before starting the disassembly or replacement procedure) 7) Restore the user's telephone list. XEROX DFC165 & DWC165c Service Manual 7-27...

  • Page 127: Optional Devices

    8. OPTIONAL DEVICES The facsimile machine offers the following optional features: - Back to back connection - Telephone answering device - Extension telephone connection - Handset. XEROX DFC165 & DWC165c Service Manual...

  • Page 128: Setting Up A Back To Back Connection

    1) Remove the precut tab covering the socket for the TAD (TEL2) and plug the cable of the answering device into this socket (Fig. 8-2). to TAD socket socket (TEL2) telephone answering device Fig. 8-2 XEROX DFC165 & DWC165c Service Manual...

  • Page 129: Connecting A Telephone Extension

    TEL2 Fig. 8-3 Any telephone connected to the facsimile machine, either directly or as an extension, can be enabled to activate the facsimile machine by means of a one-digit code (see section 3.2.4). XEROX DFC165 & DWC165c Service Manual...

  • Page 130: Handset

    1) Insert the handset holder in its seat on the base of the machine until it clicks into position (fig. 8-4) Fig. 8-4 2) Plug the handset cable into the free telephone socket on the facsimile machine (fig. 8-5) and then place the handset on the holder. TEL1 TEL2 Fig. 8-5 XEROX DFC165 & DWC165c Service Manual...

  • Page 131: Installation Of The Linkfax 8 Module In Windows 95 Environment

    UNINSTALLING THE LINKFAX 8 MODULE ............9 ACCESSING ONLINE HELP ..................9 PRINTING THE USER GUIDE ................... 9 CREATING 3.5" INSTALLATION DISKETTES ............ 10 INSTALLING LINKFAX 8 USING 3.5" DISKETTES ....................11 INSTALLING ACROBAT READER USING 3.5" DISKETTES .................... 11 XEROX DFC165 & DWC165c Service Manual...

  • Page 132: Introduction

    SYSTEM REQUIREMENTS dem, is greater than the number of rings pro- grammed for the facsimile machine. The LinkFax 8 module can only be installed on an IBM-compatible PC with the following recommended minimum configuration: XEROX DFC165 & DWC165c Service Manual...

  • Page 133: Print Head Precautions

    ... or the contacts: • never try to re-load the print head, as this could damage the print head or the facsimile; • always place the print head not in use in the special container: XEROX DFC165 & DWC165c Service Manual...

  • Page 134: Installing The Linkfax 8 Module

    • buttons can be selected either using the mouse, or by pressing the ← and → ar- row keys; • the selected button can be confirmed using the mouse, or by pressing the En- ter key. XEROX DFC165 & DWC165c Service Manual...
  • Page 135 Select the folder in which you wish to install the procedure and cause the system to restart. LinkFax 8 module from the folder list (the Pro- grams/LinkFax 8 folder is automatically se- lected): XEROX DFC165 & DWC165c Service Manual...
  • Page 136 10; if you did not, go straight to step The installed components of the LinkFax 8 mod- ule are now active within Windows 95 and are represented by icons which appear at the bottom of the screen: Fax Manager and Internet XEROX DFC165 & DWC165c Service Manual...

  • Page 137: Notes On The Use Of The Communication Port

    Having installed the LinkFax 8 module, the PC port lect the relevant serial port (COM1 in the to which the facsimile machine is connected will example): be exclusively dedicated to the management of bubble ink jet facsimile machines (Fax Port) XEROX DFC165 & DWC165c Service Manual...

  • Page 138: Updating The Linkfax 8 Module

    OK to confirm: tion procedure the new elements will be added to those already installed in the pre- vious version, and the existing elements will be updated. XEROX DFC165 & DWC165c Service Manual...

  • Page 139: Temporary Disabling Of The Linkfax 8 Module

    (menus, items, icons): WARNING The User Guide can only be printed if the Acrobat Reader application is present. If this application has not yet been installed, XEROX DFC165 & DWC165c Service Manual...

  • Page 140: Creating 3.5" Installation Diskettes

    OK to confirm: • if the diskette is not a blank one, the fol- lowing message is displayed: ... informing you that the diskette creation proc- ess is complete. Click on OK to confirm. 9-10 XEROX DFC165 & DWC165c Service Manual...

  • Page 141: Installing Linkfax 8 Using

    A. From the Start menu, select Run and type a:acroread, then click on OK to confirm. Follow the instructions as they appear and insert the last diskette into the drive when requested. 9-11 XEROX DFC165 & DWC165c Service Manual...
  • Page 142 SCANNING WITH OLE ........15 4 SENDING AND RECEIVING ON THE PC INSTALLING MICROSOFT FAX ......17 ACTIVATING MICROSOFT FAX ......17 SENDING WITH THE PC ........17 RECEIVING WITH THE PC ........18 10-1 XEROX DFC165 & DWC165c Service Manual...
  • Page 143 COM1): Should you need to use this port for devices other than facsimile machines, you can temporarily deselect the port and then reselect it: • Double click on the Fax Manager icon: 10-2 XEROX DFC165 & DWC165c Service Manual...
  • Page 144 The Redirect to Parallel button will become active. • Confirm the Redirect to Parallel button: • Select the parallel port to which you wish to redirect the serial port (in the example, LPT1): and click on OK to confirm: 10-3 XEROX DFC165 & DWC165c Service Manual...
  • Page 145 Port in Chapter 1) and then continue. and click on OK to confirm. Select Printer Setup from the File menu: SETTING THE PRINTING PARAMETERS Once the LinkFax 8 Colour Printer has been installed, you can set the printing parameters 10-4 XEROX DFC165 & DWC165c Service Manual...
  • Page 146 Set the Windows 95 standard parameters by Econofast, to print drafts. selecting the General and Details boxes. • Print head selection, to set the type of print head: Select the Settings box: Colour Monochrome. 10-5 XEROX DFC165 & DWC165c Service Manual...
  • Page 147 True Type characters (those pre- ceded by the symbol) to ensure that they are printed correctly. • Brightness and Contrast of the Image: Click on the Graphics box if you wish to print a complex photographic image: 10-6 XEROX DFC165 & DWC165c Service Manual...
  • Page 148 Once the paper has been inserted, print- ing begins in the normal way. If there is more than one page to be printed, you are prompted to insert another sheet of paper each time a page has been printed. 10-7 XEROX DFC165 & DWC165c Service Manual...
  • Page 149 • the Ink Level of the print head: click on Update and the level (or three levels in the case of a colour print head) is highlighted on the print head image; 10-8 XEROX DFC165 & DWC165c Service Manual...
  • Page 150 To do this, click on Always minimized and it will appear at the bottom of the screen as an icon when the next print process is activated..where xxxx.xxx indicates the name of the file being printed. 10-9 XEROX DFC165 & DWC165c Service Manual...

  • Page 151: In Windows 3.1X Environment

    PRINT HEAD PRECAUTIONS ........ 3 2 INSTALLING THE LINKFAX 8 MODULE UPDATING THE LINKFAX 8 MODULE ....6 UNINSTALLING THE LINKFAX 8 MODULE ..6 ACCESSING ONLINE HELP ........7 PRINTING THE USER GUIDE ........ 7 11-1 XEROX DFC165 & DWC165c Service Manual...

  • Page 152: Introduction

    • processor 486 (386) • RAM 8 Mbytes or more (4 Mbytes) • monitor VGA or higher • MS-DOS version 5.00 or higher • Windows version 3.11 11 - 2 XEROX DFC165 & DWC165c Service Manual...

  • Page 153: Print Head Precautions

    ..or the contacts: • never try to re-load the print head, as this could damage the print head or the facsimile; 11-3 XEROX DFC165 & DWC165c Service Manual...

  • Page 154: Installing The Linkfax

    You can abort the installation procedure from any of the dialog boxes that appear from now on. If you decide to abort the procedure, the program will prompt for confirmation (Yes): 11 - 4 XEROX DFC165 & DWC165c Service Manual...
  • Page 155 If you do not wish to change the predefined instal- lation path (c:\linkfax8), click on Continue to ... then click on OK. confirm and go straight to step 8. Otherwise, click on Enter destination address: 11-5 XEROX DFC165 & DWC165c Service Manual...

  • Page 156: Updating The Linkfax 8 Module

    Delete the c:\casdir directory together with the directory where the LinkFax 8 module is installed 11 - 6 XEROX DFC165 & DWC165c Service Manual...

  • Page 157: Accessing Online Help

    Acrobat Reader applica- tion is present. If this application has not yet been installed, install it now following the in- structions given in the guide. 11-7 XEROX DFC165 & DWC165c Service Manual...
  • Page 158 MACHINE ............8 Scan to File ..............9 Scan to Fax Manager ..........9 Interrupting the Scanning Process ......9 4 SENDING AND RECEIVING DOCUMENTS SENDING A DOCUMENT ........10 RECEIVING A DOCUMENT ........10 XEROX DFC165 & DWC165c Service Manual 12-1...
  • Page 159 Windows applications. This guide describes how to use the various LinkFax 8 functions. These instructions are avail- able both online (specific Guide) and in printable format (User Guide). XEROX DFC165 & DWC165c Service Manual 12-2...

  • Page 160: Using The Facsimile Machine As A Printer

    Photo, to print photographic images; SETTING THE PRINTING PARAMETERS Art, to print drawings; Custom, to print special documents cre- ated by you. Once the LinkFax 8 Colour Printer has been installed, you can set the printing parameters XEROX DFC165 & DWC165c Service Manual 12-3...
  • Page 161 • Colour Balance, to balance the colours of ing order), or Reverse Page Order (decreas- ing order). the image to be printed manually. In this case, the colour selectors will appear on top of the WARNING XEROX DFC165 & DWC165c Service Manual 12-4...

  • Page 162: Printing With Linkfax 8

    Air Brush (High speed) • If you set manual feed, remove the pa- per tray from the facsimile machine and then start the print: The following message Air Brush (Standard) will appear after the Status Monitor: XEROX DFC165 & DWC165c Service Manual 12-5...
  • Page 163 • When the print head is finished, the fol- prompted to change the print head: lowing message appears: OUT OF INK If a refillable print head is in use, the fol- XEROX DFC165 & DWC165c Service Manual 12-6...

  • Page 164: Checking The Printer

    To do this, click on Always minimized and it will appear at the bottom of the screen as an icon when the next print process is activated..where xxxx.xxx indicates the name of the file being printed. XEROX DFC165 & DWC165c Service Manual 12-7...

  • Page 165: Using The Facsimile Machine As A Scanner

    Click on the name of the PC port (LPT1 or LPT2) or 200 x 200; to which the facsimile is connected and click on • Image: Text (line art), Gray tones (with 32 OK to confirm. shades of gray); XEROX DFC165 & DWC165c Service Manual 12-8...

  • Page 166: Scan To File

    To interrupt the current scanning process, press where each page is stored in a separate the STOP button on the facsimile machine. file. Each file will have the name you speci- fied, plus a progressive number assigned XEROX DFC165 & DWC165c Service Manual 12-9...

  • Page 167: Sending And Receiving Documents

    ... and click on OK to confirm; the facsimile ma- chine displays the following message: WARNING • When dialling the telephone number, you can use the following (as on the facsimile XEROX DFC165 & DWC165c Service Manual 12-10...
  • Page 168 • If you wish to receive simultaneously on the facsimile and the PC, refer to the In- structions for Use of the facsimile machine and set the RX ON PC & FAX parameter in the Operating configuration. XEROX DFC165 & DWC165c Service Manual 12-11...

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