Page 3
PREFACE This publication is a Service Manual covering the specifications, construction, theory of operation, and maintenance of the Brother facsimile equipment. It includes information required for field troubleshooting and repair--disassembly, reassembly, and lubrication--so that service personnel will be able to understand equipment function, to rapidly repair the equipment and order any necessary spare parts.
EQUIPMENT OUTLINE External Appearance and Weight The figure below shows the equipment appearance and approximate dimensions. Models except FAX-T78 FAX-T78 Models except European models European models Weight: Machine proper (excluding accessories) Approx. 2.9 kg Approx. 3.0 kg In package MFC660MC/MFC960MC Approx.
The tables below list the detailed specifications of typical models. The specifications of other models differ from them on the points of with/without handset, LCD type and others according to destinations as shown on page I-7. (1/2) Model Name FAX560 FAX580MC MFC660MC Engine Thermal transfer...
Page 8
(1/2) Model Name FAX-T72 FAX-T74 Engine Thermal transfer Thermal transfer Color New Personal black (1293) New Personal black (1293) Transmission Speed (sec) Modem Speed (bps) 9600 9600 Group Compatibility Input/Output Width 8.5"/8.5" 8.5"/8.5" ADF (pages) Paper Feeder (A4-size) 30 sheets 30 sheets Ribbon Yield (A4-size) 144 pages (47 m)
Page 9
(1/2) Model Name FAX-T76 FAX-T78 Engine Thermal transfer Thermal transfer Color New Personal black (1293) White (1517) Transmission Speed (sec) Modem Speed (bps) 14,400 14,400 Group Compatibility Input/Output Width 8.5"/8.5" 8.5"/8.5" ADF (pages) Paper Feeder (A4-size) 30 sheets 30 sheets Ribbon Yield (A4-size) 144 pages (47 m) 144 pages (47 m)
Page 10
(1/2) Model Name FAX-T82 FAX-T84 FAX-T86 Engine Thermal Transfer Thermal Transfer Thermal Transfer Color WHITE (1517) WHITE (1517) WHITE (1517) Transmision Speed (sec) Modem Speed (bps) 9600 9600 14,400 Group Compatibility Input/Output Width 8.5"/8.5" 8.5"/8.5" 8.5"/8.5" ADF(pgs) Paper Cassette ( A4 size ) 30 Sheets 30 Sheets 30 Sheets...
Page 11
(2/2) Model Name FAX560 FAX580MC MFC660MC Quick Scan Out-of-Paper Reception Multi-Copying w/ Sorting Enlargement/Reduction Ratio Yes (50-150%) Yes (50-150%) Yes (50-150%) Multi-Transmission Confidential Mailbox Auto Reduction Message Center TAD Recording Time 15 minutes 15 minutes Fax Forwarding/Paging Fax Retrieval Fax-/Voice-on-Demand Fax &...
Page 12
(2/2) Model Name FAX-T72 FAX-T74 Out-of-Paper Reception Multi-Copying w/ Sorting Enlargement/Reduction Ratio Yes (50-150%) Yes (50-150%) Multi-Transmission No (w/o SHIFT key) No (w/o SHIFT key) Confidential Mailbox Auto Reduction Message Manager TAD Recording Time Fax Forwarding/Paging Yes-Only Fax Forwarding Yes-Only Fax Forwarding Fax Retrieval Fax-/Voice-on-Demand Fax &...
Page 13
(2/2) Model Name FAX-T76 FAX-T78 Out-of-Paper Reception Multi-Copying w/ Sorting Enlargement/Reduction Ratio Yes (50-150%) Yes (50-150%) Multi-Transmission No (w/o SHIFT key) No (w/o SHIFT key) Confidential Mailbox Auto Reduction Message Manager TAD Recording Time 15 minutes 15 minutes Fax Forwarding/Paging Yes-both Yes-both Fax Retrieval...
Page 14
Others Relationship between models and destinations Base models MC models w/o handset w/ handset Single-row LCD Double-row LCD w/ job dial American models FAX560 FAX580MC/MFC660MC European models FAX-T72/FAX-T82 FAX-T74/FAX-T84 FAX-T76/FAX-T86 FAX-T78 Asian/Oceanic models FAX645 FAX685MC/MFC960MC ...
MECHANISMS The facsimile equipment is classified into the following mechanisms: Scanning Mechanism - ADF mechanism - Document scanning & feeding mechanism Printing Mechanism - ACF and registration mechanism - Printing and paper ejecting mechanism Power Transmission Switching Mechanism Sensors and Actuators III - 2...
Scanning Mechanism The scanning mechanism consists of the document stacker, automatic document feeder (ADF), separation roller, document LF roller, scanner, document ejection roller, and document sensors. (For details about the sensors, refer to Section 2.4.) Automatic document feeder (ADF) If you set documents with their faces down on the stacker and start the transmitting operation, the ADF (consisting of the separation roller and ADF parts) feeds those documents into the equipment, starting from the bottom sheet (first page) to the top (last page), page by page.
Sensors and Actuators This equipment has two photosensors and five mechanical switches as described below. Sensor name Type Located on Document front sensor Microswitch (SEN1) Control panel PCB Document rear sensor Microswitch (SEN2) Control panel PCB Cover sensor Microswitch (SW2) Sensor PCB Hook switch* Microswitch (SW1)
Page 22
Not provided on models w/o handset. Location of Sensors and Actuators III - 5...
CONTROL ELECTRONICS Configuration The hardware configuration of the facsimile equipment is shown below. *1 On the main PCB is the ribbon sensor. *2 On the sensor PCB are these sensors: Cover sensor (SW2) Hook switch* (SW1) Registration sensor *3 On the control panel PCB are these sensors: Document front sensor (SEN1) Document rear sensor (SEN2) Configuration of Facsimile Equipment...
Page 24
CHAPTER IV. DISASSEMBLY/REASSEMBLY AND LUBRICATION...
Page 25
CHAPTER IV. DISASSEMBLY/REASSEMBLY AND LUBRICATION CONTENTS DISASSEMBLY/REASSEMBLY ................IV-1 Safety Precautions....................IV-1 Tightening Torque List ..................IV-2 Preparation ......................IV-3 How to Access the Object Component ..............IV-3 Disassembly Order Flow ..................IV-4 Cover Stopper Link, Ribbon Shaft Stopper, ROM Cover, and Control Panel ASSY ....................
DISASSEMBLY/REASSEMBLY n n Safety Precautions To prevent the creation of secondary problems by mishandling, observe the following precautions during maintenance work. (1) Unplug the power cord from the power outlet before replacing parts or units. When having access to the power supply, be sure to unplug the power cord from the power outlet. (2) Be careful not to lose screws, washers, or other parts removed for parts replacement.
Tightening Torque List Location Screw type Q'ty Tightening torque Loosening torque N•m (kgf•cm) N•m (kgf•cm) Cover stopper link Taptite, pan B M4x6D10 0.69 ±0.20 (7 ±2) Min. 0.40 (4.0) ROM cover Taptite, cup B M3x8 0.39 ±0.20 (4 ±2) Min. 0.20 (2.0) Chute cover ASSY Taptite, cup B M3x8 0.39 ±0.20 (4 ±2)
Preparation Prior to proceeding to the disassembly procedure, (1) Unplug - the modular jack of the telephone line, - the modular jack of the curled cord* (and remove the handset*), - the PC interface cable** and - the modular jack of an external telephone set if connected. (Not shown below.) (2) Remove - the paper wire extension and paper feeder - the output paper extension, and...
Cover Stopper Link, Ribbon Shaft Stopper, ROM Cover, and Control Panel ASSY (1) Open the control pane ASSY (in the direction of arrow •). (2) Remove the screw from the cover stopper link. Pull the link outwards (arrow ‚) to release it from the control panel ASSY and then turn it to the front (arrow ƒ) to remove.
Page 31
(4) Remove the screw from the ROM cover. Unlatch the ROM cover and take it up. (5) Disconnect the panel-main harness from the main PCB. Reassembling Notes • When connecting the panel-main harness to the main PCB, place the ferrite core as illustrated below.
Disassembly of the Control Panel ASSY (Document pressure bar and chute cover ASSY) (1) Place the control panel ASSY upside down. (2) Pull either of the supports provided on the panel rear cover outwards and lift up the document pressure bar. The three springs also come off. (3) To replace the white film of the document pressure bar, remove it.
Page 33
(4) Remove four screws from the chute cover ASSY. (5) Slightly lift up the chute cover ASSY and remove the panel-main harness from the chute cover ASSY. IV - 8...
Page 34
Reassembling Notes • When reinstalling the chute cover ASSY, first pass the panel-main harness through the opening provided in the chute cover ASSY and route it as shown below. Then place the chute cover ASSY onto the control sub ASSY so that the box on the chute cover ASSY becomes fitted over the tab on the control cover sub ASSY.
Disassembly of the Chute Cover ASSY (Paper pressure rollers, separation roller, paper feed roller 32, platen, registration sensor actuator, and lock bar & lock levers) (1) Press the latches to release the pressure roller shaft and take out the paper pressure rollers and their shaft.
Page 36
(3) Press the locking arm and pull out the paper feed roller gear 37. Take out the paper feed roller 32. IV - 11...
Page 37
(4) To replace the platen, remove gear 23 by cutting off the two locks (having no rib) out of three with nippers. Then remove gear 24, platen shaft bushings, and platen in the direction of the arrows shown below. NOTE: Do not remove the platen except when the platen is defective and requires replacement.
Page 38
(5) Remove the chute film. NOTE: Once removed, the chute film will become unusable and a new one will have to be put back in. NOTE: When attaching a new chute film to the chute cover ASSY, fit the rear edge as shown below.
Page 39
(6) Lightly press the locking arm and remove the registration sensor actuator (actuator RF) in the direction of the arrow. IV - 14...
Page 40
(7) At the right end of the lock bar, release the latch of the lock lever R (gray) and pull it out to the right. The lock spring also comes off. At the left side, release the latch of the lock lever L (white) and pull it out to the left.
Page 41
(8) Remove the ADF film. NOTE: Once removed, the ADF film will become unusable and a new one will have to be put back in. NOTE: When attaching a new ADF film, align the right and rear edges as shown below. IV - 16...
Disassembly of the Control Cover Sub ASSY (ACF parts, ADF parts, panel rear cover, control panel PCB, FPC key, LCD, and keys) (1) Remove the two screws to release the ACF (auto cut sheet feeder) leaf spring. (2) Remove two screws to release the ACF parts. (3) Disassemble the ACF parts as illustrated below.
Page 43
(4) Remove the screw and disassemble the ADF parts as illustrated below. (5) Remove the four screws from the panel rear cover. (See the illustration given on the next page.) (6) Unhook the panel rear cover from the three latches provided on the control cover sub ASSY, then slide the panel rear cover to the front to prevent it from catching the document front and rear sensor actuators.
Page 45
Reassembling Notes • Route the panel-main harness as illustrated below. When setting the control panel PCB back into place, route the MIC harness (not provided on base models) beneath the PCB at center hook "x." • When setting the panel rear cover back into place, pull the panel-main harness and take care not to pinch the harness between the panel rear cover and the control cover sub ASSY.
Handset Mount* , Dummy Mount* , Battery ASSY* , Sensor PCB, Cover Sensor Actuator, and Hook Switch Actuator* For models w/ handset, * For models w/o handset, * For MC models) (1) Release the latches with a flat screwdriver in the order of • and ‚ while twisting the handset mount* or dummy mount* so that it tilts over to the left.
Page 47
(3) Disconnect the sensor-main harness from the sensor PCB. (4) Remove the screw, release the latch, and take out the sensor PCB in the direction of arrows • and ‚. (5) Pull arm "a" to release the cover sensor actuator (black). The spring also comes off. (6) Pull arm "b"...
Page 48
Reassembling Notes • When setting the battery ASSY* back into place, route the battery harness as illustrated below. • When setting the handset mount back into place, route the sensor-main harness around the boss as illustrated below. IV - 23...
Paper Ejection Roller, Document LF Roller, and Document Ejection Roller (1) Unlatch the paper ejection roller and take it out. (2) Remove the retaining ring and take the document LF roller out of the main frame. (3) Remove the retaining ring and take the document ejection roller out of the main frame. IV - 24...
Head Protector, Recording Head ASSY, and Recorder Frame (1) While pulling up the left end of the head protector, unhook latches • through „ in this order with a small flat screwdriver as illustrated below. IV - 25...
Page 51
(2) Push down both ends of the recording head ASSY and move it to the rear to release the tabs from the cutouts provided in the recorder frame. (3) Disconnect the two harnesses (main-head harness and head-power harness) from the recording head ASSY and then lift up the ASSY.
Page 52
(5) Remove two screws to release the recorder frame. (6) Remove the grounding spring. (7) Unhook the head-power harness from the main frame. Reassembling Notes • Before reinstalling the recorder frame, check its top end (on which paper and ribbon pass) for scratches or burrs.
Drive Unit, Motor, and Arm HP Switch ASSY (1) Remove the screw from the bottom plate. (2) Remove the two screws from the drive unit. (3) Slightly lift up the drive unit and disconnect the two harnesses (HP switch harness and motor harness) from the main PCB.
Page 54
(4) Remove the two screws to release the sub frame ASSY. (5) Remove the screw from the sub frame ASSY to release the motor. (6) Remove the planet gear ASSY from the drive unit. (7) Unhook the arm HP switch ASSY. IV - 29...
Page 55
Reassembling Notes • As shown below, set the arm HP switch ASSY back into place. • Set the planet gear ASSY with its planet gears facing towards the drive gear frame, taking care not to let the switching arm interfere with the actuator of the arm HP switch ASSY. •...
Page 56
• Route the motor harness (or motor flat cable) and HP switch harness along the guides on the bottom of the drive unit. When securing the drive unit to the main frame, tighten the three screws in the order of • to ƒ •...
Speaker (1) Disconnect the speaker harness from the main PCB. (2) With a flat screwdriver, unhook the speaker support spring and pull it up. (3) Remove the speaker. IV - 32...
1.10 Lower Cover, Support Plate, and CIS Spring (1) Remove the two screws to release the lower cover. The support plate also comes off. (2) Remove the screw to release the CIS spring. IV - 33...
1.11 CIS Film and CIS Unit (1) Peel off the black CIS film. NOTE: Once removed, the CIS film will become unusable and a new one will have to be put back in. IV - 34...
Page 60
(2) Remove screw "a" from the CIS holder. (3) Push up the rear end of the CIS holder, slightly lift up the CIS unit, and disconnect the CIS- main harness from the CIS unit. (4) Remove screw "b" to release the CIS holder. IV - 35...
1.12 Document Pressure Rollers and Document Pinch Roller (1) Insert the tip of a flat screwdriver under tab "z" of the document pressure roller spring to release it from the boss (in the direction of arrow •), push the underside of the spring with your fingers (arrow ‚), and take it out (arrow ƒ).
Page 62
(3) Pull up the outer end of each pinch roller spring (in the direction of arrow •) and press it inwards (arrow ‚). (4) Remove the document pinch roller and its shaft. IV - 37...
1.13 Bottom Plate, Main PCB, NCU PCB, Power Supply PCB, and Ribbon Sensor Actuator (1) Place the main frame upside down. (2) Remove the five screws from the bottom plate. (3) Slightly lift up the bottom plate and release the grounding wire. IV - 38...
Page 64
(4) Remove the screw from the main PCB. (5) Unhook the NCU PCB. (6) Slightly lift up the main PCB, disconnect it from the NCU PCB, and disconnect the harnesses from the main PCB. (7) Slightly lift up the NCU PCB and disconnect it from the power supply PCB. (8) Slightly lift up the power supply PCB and disconnect the head-power harness.
Page 65
(9) As shown below, push the locking arm and take out the ribbon sensor actuator. Reassembling Notes • When setting the power supply PCB back into place, route the head-power harness as illustrated on the previous page. • If you replace the bottom plate with a new one, attach an insulation film to the new bottom plate as illustrated below.
Page 66
• When setting the main PCB back into place, route the CIS-main harness to place the ferrite core as illustrated below. Make sure that the ferrite core lies horizontally. • After you replace the main PCB, be sure to follow the flowchart given on the next page. IV - 41...
Page 67
Setting up the main PCB after replacement IV - 42...
LUBRICATION Apply the specified lubricants to the lubrication points as shown below. Lubricant type (Manufacturer): Molykote EM-30L (Dow Corning) or Floil BG-11 (Kanto-Kasei Ltd.) Apply a rice-sized pinch of grease (6 mm ) to the specified points. [ 1 ] Separation roller and its gear and paper feed roller 32 and its gear IV - 43...
Page 72
CHAPTER V. MAINTENANCE MODE CONTENTS ENTRY INTO THE MAINTENANCE MODE ............V-1 LIST OF MAINTENANCE-MODE FUNCTIONS ............V-2 DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS ....V-5 EEPROM Parameter Initialization ..............V-5 Printout of Scanning Compensation Data ............V-6 ADF Performance Test .................. V-8 Test Pattern 1....................
1. ENTRY INTO THE MAINTENANCE MODE American models (e.g., FAX560/FAX580MC/MFC660MC): To make the facsimile equipment enter the maintenance mode, press the Function, *, 2, 8, 6, and 4 keys in this order. Within 2 seconds European models (e.g., FAX-T72/FAX-T74/FAX-T76/FAX-T78/FAX-T82/FAX-T84/FAX-T86): To make the facsimile equipment enter the maintenance mode, press the Menu, *, 2, 8, 6, and 4 keys in this order.
2. LIST OF MAINTENANCE-MODE FUNCTIONS Maintenance-mode Functions Function Reference Code Function Section (Page) EEPROM Parameter Initialization 3.1 (V-5) Printout of Scanning Compensation Data 3.2 (V-6) ADF* Performance Test 3.3 (V-8) Test Pattern 1 3.4 (V-9) Firmware Switch Setting 3.5 (V-10) Printout of Firmware Switch Data 3.5 (V-51) Operational Check of LCD...
Page 75
- - - - - - - - - - - - - - - - - - - - - - - - - - IMPORTANT - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Basically, the maintenance-mode functions listed on the previous page should be accessed by service personnel only.
3. DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS EEPROM Parameter Initialization Function The equipment initializes the parameters, user switches, and firmware switches registered in the EEPROM, to the initial values. Entering the function code 01 initializes all of the EEPROM areas, but entering 91 does not initialize some areas, as listed below. Function code Data item Maintenance-mode functions...
Printout of Scanning Compensation Data Function The equipment prints out the white and black level data for scanning compensation. Operating Procedure Do not start this function merely after powering on the equipment but start it after carrying out a sequence of scanning operation. Unless the equipment has carried out any scanning operation, this function cannot print out correct scanning compensation data.
ADF Performance Test Function The equipment counts the documents fed by the automatic document feeder (ADF) and displays the count on the LCD for checking the ADF performance. Operating Procedure (1) Set documents (Allowable up to the ADF capacity) in the initial stage of the maintenance mode.
Test Pattern 1 Function This function, much like the copying function, prints out test pattern 1 to allow the service personnel to check for record data missing or print quality. Operating Procedure Press the 0 and 9 keys in this order in the initial stage of the maintenance mode. The figure below shows test pattern 1.
Firmware Switch Setting and Printout [ A ] Firmware switch setting Function The facsimile equipment incorporates the following firmware switch functions (WSW01 through WSW37) which may be activated with the procedures using the control panel keys and buttons. The firmware switches have been set at the factory in conformity to the communications standards and codes of each country.
Page 83
Operating Procedure (1) Press the 1 and 0 keys in this order in the initial stage of the maintenance mode. The equipment displays the "WSW00" on the LCD and becomes ready to accept a firmware switch number. (2) Enter the desired number from the firmware switch numbers (01 through 37). The following appears on the LCD: WSWXX = 0 0 0 0 0 0 0 0 Selector No.1...
Page 84
Detailed Description for the Firmware Switches WSW01 (Dial pulse setting) Selector Function Setting and Specifications No. 1 2 Dial pulse generation mode 10-N No. 3 4 60 ms 67 ms Break time length in pulse dialing 40 ms (for 16 PPS) 64 ms (at 106-ms intervals) No.
Page 85
Selector 7: Switching between pulse (DP) and tone (PB) dialing, by the function switch This selector determines whether or not the dialing mode may be switched between the pulse (DP) and tone (PB) dialing by using the function switch. Selector 8: Default dialing mode, pulse (DP) or tone (PB) dialing This selector sets the default dialing mode (pulse dialing or tone dialing) which may be changed by the function switch.
Page 86
WSW03 (PABX* mode setting) Selector Function Setting and Specifications CNG detection when sharing a modular wall socket with a 0: A 1: B telephone No. 2 3 4 0 0 0 : 50 ms 0 0 1 : 210 ms Min.
Page 87
Selectors 6 and 7: Dial tone detection in PABX These selectors activate or deactivate the dial tone detection function which detects a dial tone when a line is connected to the PABX. Setting both of these selectors to “1” activates the dial tone detection function so that the equipment starts dialing upon detection of a dial tone when a line is connected.
Page 88
WSW04 (TRANSFER facility setting) Selector Function Setting and Specifications Earth function in transfer facility 0: Provided 1: Not provided No. 2 3 Dual tone detection frequency in 350 and 440 Hz (A) ICM recording 440 and 480 Hz (B) 480 and 620 Hz (C) Tone detection sensitivity in ICM 0: OFF 1: High...
Page 89
WSW05 (1st dial tone and busy tone detection Selector Function Setting and Specifications No. 1 2 3 0 0 0 3.5 sec. WAIT 0 0 1 7.0 sec. WAIT 0 1 0 10.5 sec. WAIT 1st dial tone detection 0 1 1 14.0 sec.
Page 90
Selector 4: Max. pause time allowable for remote ID code detection This selector sets the maximum pause time allowable for detecting the second digit of a remote ID code after detection of the first digit in remote reception. If selector 4 is set to "0" (2 seconds), for instance, only a remote ID code whose second digit is detected within 2 seconds after detection of the first digit will become effective so as to activate the remote function.
Page 91
WSW06 (Pause key setting and 2nd dial tone detection) Selector Function Setting and Specifications No. 1 2 3 0 0 0 : No pause 0 0 1 : 3.5 sec. WAIT 0 1 0 : 7 sec. WAIT 0 1 1 : 10.5 sec.
Page 92
Selectors 1 through 3: Pause key setting and 2nd dial tone detection Selectors No WAIT is inserted even if the Pause key is pressed. If you press the Pause key during dialing, the facsimile equipment will insert WAIT as defined in the above table. If the Pause key is pressed repeatedly, the equipment inserts the specified WAIT multiplied by the number of depressions.
Page 93
WSW07 (Dial tone setting 1) Selector Function Setting and Specifications No. 1 2 Frequency band range Narrows by 10 Hz Initial value Widens by 10 Hz Line current detection 0: No 1: Yes No. 4 5 6 0 0 0 : -21 dBm 0 0 1 : -24 dBm...
Page 94
WSW08 (Dial tone setting 2) Selector Function Setting and Specifications No. 1 2 3 0 0 0 : 50 ms 0 0 1 : 210 ms 0 1 0 : 500 ms 1st dial tone detection time length 0 1 1 : 800 ms 1 0 0 : 900 ms...
Page 95
WSW09 (Protocol definition 1) Selector Function Setting and Specifications Frame length selection 256 octets 1: 64 octets Use of non-standard commands Allowed 1: Prohibited No. 3 4 times No. of retries 3 times 2 times 1 time T5 timer 300 sec. 60 sec.
Page 96
WSW10 (Protocol definition 2) Selector Function Setting and Specifications Switching of DPS, following the 0: No 1: Yes CML ON/OFF Time length from transmission of 0: 100 ms 1: 50 ms the last dial digit to CML ON Time length from CML ON to CNG 0: 2 sec.
Page 97
WSW11 (Busy tone setting) Selector Function Setting and Specifications Narrows by 10 Hz Frequency band range Initial value Widens by 10 Hz Not used. 1: 400-600/400-600 ms 1: 175-440/175-440 ms ON/OFF time length ranges (More than one setting allowed) 1: 100-1000/17-660 ms 1: 110-410/320-550 ms 1: 100-660/100-660 ms NOTE: WSW11 is not applicable in those countries where no busy tone detection is supported.
Page 98
WSW12 (Signal detection condition setting) Selector Function Setting and Specifications No. 1 1500 ms Min. OFF time length of calling 500 ms signal (Ci) 700 ms 900 ms No. 3 6 sec. Max. OFF time length of calling 7 sec. signal (Ci) 9 sec.
Page 99
WSW13 (Modem setting) Selector Function Setting and Specifications No. 1 0 km Cable equalizer 1.8 km 3.6 km 5.6 km No. 3 -43 dBm Reception level -47 dBm -49 dBm -51 dBm 0: 0 dB 1: 8 dB 0: 0 dB 1: 4 dB Modem attenuator 0: 0 dB...
Page 100
WSW14 (AUTO ANS facility setting) Selector Function Setting and Specifications 13 Hz Frequency band selection 15 Hz (Lower limit) 23 Hz 20 Hz Frequency band selection 30 Hz (Upper limit) 55 Hz 70 Hz Fixed to once Fixed to 2 times Fixed to 3 times Fixed to 4 times 1 to 2 times...
Page 101
WSW15 (REDIAL facility setting) Selector Function Setting and Specifications No. 1 5 minutes Selection of redial interval 1 minute 2 minutes 3 minutes No. 3 16 times 1 times No. of redialings 2 times 3 times 15 times Not used. Selectors 1 through 6: Selection of redial interval and No.
Page 102
WSW16 (Function setting 1) Selector Function Setting and Specifications Not used. CCITT superfine recommendation 0: OFF 1: ON Not used. Max. document length limitation 0: 400 cm 1: 90 cm Stop key pressed during reception 0: Not functional 1: Functional Selector 2: CCITT superfine recommendation If this selector is set to "1,"...
Page 103
WSW17 (Function setting 2) Selector Function Setting and Specifications No. 1 No alarm Off-hook alarm Always valid Valid except when 'call reservation' is selected. Power failure report output 1: OFF Calendar clock/prompt alternate 1: YES display Calendar clock type U.S.A. type 1: European type Error indication in activity report 1: YES...
Page 104
WSW18 (Function setting 3) Selector Function Setting and Specifications Not used. No. 2 40 sec. Detection enabled time for CNG 0 sec. (No detection) and no tone 5 sec. 80 sec. Not used. Registration of station ID Permitted Prohibited No. 7 No monitoring Up to phase B at the calling station only...
Page 105
WSW19 (Transmission speed setting) Selector Function Setting and Specifications No. 1 No. 4 First transmission speed choice 2,400 bps for fallback 4,800 bps 7,200 bps 9,600 bps 12,000 bps * Last transmission speed choice for fallback 14,400 bps * Not used. V.
Page 106
WSW20 (Overseas communications mode setting) Selector Function Setting and Specifications EP* tone prefix 0: OFF 1: ON Overseas communications mode 0: 2100 Hz 1: 1100 Hz (Reception) Overseas communications mode 0: OFF 1: Ignores DIS once. (Transmission) Min. time length from reception of 100 ms CFR to start of transmission of 200 ms...
Page 107
WSW21 (TAD setting 1) Selector Function Setting and Specifications No. 1 : No detection : 1 sec. : 2 sec. Max. waiting time for voice signal : 3 sec. : 8 sec. : 31 sec. No. 6 For U.S.A. Two-way recording Except for U.S.A.
Page 108
WSW22 (ECM and caller ID setting) Selector Function Setting and Specifications ECM* in sending 0: ON 1: OFF ECM* in receiving 0: ON 1: OFF Call Waiting Caller ID 0: ON 1: OFF Not used. 0: 0% 1: 8% 0: 0% 1: 4% Acceptable TCF bit error rate (%) (Only at 4800 bps)
Page 109
WSW23 (Communications setting) Selector Function Setting and Specifications Starting point of training check 0: From the head of a series of zeros (TCF) 1: From any arbitrary point Allowable training error rate 0.5% Decoding error rate for transmission of RTN Issue of RTN at the occurrence of 0: YES a pagination error...
Page 110
WSW24 (TAD setting 2) Selector Function Setting and Specifications 15 sec. Maximum OGM recording time 20 sec. 30 sec. 50 sec. Time length from CML ON to 4 sec. start of pseudo ring backtone 3 sec. transmission 2 sec. 1 sec. 0 dB 8 dB Attenuator for playback of ICM/...
Page 111
WSW25 (TAD setting 3) Selector Function Setting and Specifications Not used. No. 5 2 sec. 4 sec. 6 sec. Pause between paging number 8 sec. and PIN 10 sec. 12 sec. 14 sec. 16 sec. Not used. NOTE: Selectors 5 through 7 are applicable to the U.S.A. and Canadian versions. Selectors 5 through 7: Pause between paging number and PIN These selectors set the pause time between a telephone number being paged and PIN (private...
Page 112
WSW26 (Function setting 4) Selector Function Setting and Specifications Application of DC wetting pulse 0: OFF 1: ON Overvoltage limiter at the applying 0: ON 1: OFF time of a wetting pulse Not used. No. 4 No. of CNG cycles to be detected (when the line is connected via the external telephone except in the external TAD mode or via the built-in...
Page 113
WSW27 (Function setting 5) Selector Function Setting and Specifications Definition of programmable key TEL key TEL/POLLING key Ringer OFF setting Automatic playback of OGM at the start time of OGM ON mode Detection of distinctive ringing pattern Not used. Suppression of FAX data reception when the recording head is overheated NOTE: Selector 1 is not applicable to the U.S.A.
Page 114
WSW28 (Function setting 6) Selector Function Setting and Specifications No. 1 2 3 0 0 0 0 dB 0 0 1 +1 dB Transmission level of DTMF high- 0 1 0 +2 dB band frequency signal 0 1 1 +3 dB 1 0 0 0 dB 1 0 1...
Page 115
WSW29 (Function setting 7) Selector Function Setting and Specifications No. 1 2 3 0 0 0 -47.0 dBm 0 0 1 -48.5 dBm Compression threshold level for 0 1 0 -50.0 dBm voice signals inputted via the 0 1 1 -51.5 dBm telephone line in the built-in TAD 1 0 0...
Page 116
WSW30 (Function setting 8) Selector Function Setting and Specifications 1 2 3 0 0 0 -38.0 dBm 0 0 1 -39.5 dBm Detection level of dial tone or 0 1 0 -41.0 dBm busy tone for the built-in TAD 0 1 1 -42.5 dBm operation 1 0 0...
Page 117
WSW31 (Function setting 9) Selector Function Setting and Specifications Not used. Default reduction rate for failure of automatic reduction during 0: 100% 1: 50% recording Not used. Minimum short-OFF duration in 0: 130 ms 1: 90 ms distinctive ringing Not used. NOTE: Selector 5 is applicable in those areas where the distinctive ringing is supported.
Page 118
WSW32 (Function setting 10) Selector Function Setting and Specifications Not used. No. 5 Standard Default resolution Fine Super fine Photo No. 7 Automatic Default contrast Super light Super dark Selectors 5 and 6 Default resolution These selectors set the default resolution which applies when the equipment is powered up or completes a transaction.
Page 119
WSW33 (Function setting 11) Selector Function Setting and Specifications No. 1 -42.5 dBm -44.0 dBm Detection threshold level for voice signals inputted via the -45.5 dBm telephone line in the built-in TAD -47.0 dBm operation -48.5 dBm -50.0 dBm -51.5 dBm -53.0 dBm No.
Page 120
WSW34 (Function setting 12 Selector Function Setting and Specifications No. 1 0 sec. Erasing time length of ICM tone 1 sec. recorded preceding the tone 2 sec. detection starting point in the case 3 sec. of automatic line disconnection due 4 sec.
Page 121
WSW35 (Function setting 13) Selector Function Setting and Specifications No. 1 2 3 4 0 0 0 : No detection Detection time length of the 0 0 1 : 1 sec. disconnection tone in ICM 0 1 0 : 2 sec. recording 1 0 0 : 4 sec.
Page 122
WSW37 (Function setting 15) Selector Function Setting and Specifications Not used. V - 50...
Page 123
[ B ] Printout of firmware switch data Function The equipment prints out the setting items and contents specified by the firmware switches. Operating Procedure (1) Press the 1 key twice in the initial stage of the maintenance mode. The "PRINTING" will appear on the LCD. (2) The equipment prints out the configuration list as shown in the figure below.
Page 124
Operational Check of LCD Function This function allows you to check whether the LCD on the control panel works normally. Operating Procedure Models except FAX-T78 (1) Press the 1 and 2 keys in this order in the initial stage of the maintenance mode.
Page 125
Operational Check of Control Panel PCB Function This function allows you to check the control panel PCB for normal operation. Operating Procedure (1) Press the 1 and 3 keys in this order in the initial stage of the maintenance mode. The "00 "...
Page 126
Models except FAX-T78, equipped with a built-in TAD FAX-T78 Key & Button Entry Order (2) V - 54...
Page 127
Sensor Operational Check Function This function allows you to check that the seven sensors (document front sensor, document rear sensor, cover sensor, hook switch*, registration sensor, ribbon sensor, and arm HP switch) operate correctly. (*In the models not equipped with handset, the hook switch serves no function.) Operating Procedure (1) Press the 3 and 2 keys in this order in the initial stage of the maintenance mode.
Page 128
Fine Adjustment of Scanning Start/End Position Function This function allows you to adjust the scanning start/end position. Operating Procedure (1) Press the 5 and 4 keys in this order in the initial stage of the maintenance mode. The LCD shows the current scanning position correction value as shown at right.
Page 129
(1) Press the 7 and 4 keys in this order in the initial stage of the maintenance mode. The current customizing code (e.g., 9001 in the case of FAX560 U.S.A. versions) appears. (2) Enter the desired customizing code (e.g., 0002 in the case of FAX580MC Canadian versions).
Page 130
3.12 Equipment Error Code Indication Function This function displays an error code of the last error on the LCD. Operating Procedure (1) Press the 8 and 2 keys in this order in the initial stage of the maintenance mode. The LCD shows the "MACHINE ERROR _ _" (for 2-digit error code indication) or "MACHINE ERR _ _ _ _"...
Page 131
3.14 Document Draw Adjustment After replacement of the main PCB or CIS, or if data stored in the EEPROM is damaged, you need to carry out this procedure by using the TC-027 chart. Function This function adjusts how much the document is drawn in, starting at the point when the document rear sensor is turned on until the leading edge of the document reaches the scanning start position.
Page 132
CHAPTER VI. ERROR INDICATION AND TROUBLESHOOTING...
Page 133
CHAPTER VI. ERROR INDICATION AND TROUBLESHOOTING CONTENTS ERROR INDICATION....................VI-1 Equipment Errors ................... VI-1 [ 1 ] Error messages on the LCD ..............VI-1 [ 2 ] Error codes shown in the "MACHINE ERROR _ _" message ....VI-5 Communications Errors.................. VI-8 TROUBLESHOOTING .....................
1. ERROR INDICATION To help the user or the service personnel promptly locate the cause of a problem (if any), the facsimile equipment incorporates the self-diagnostic functions which display error messages for equipment errors and communications errors. For the communications errors, the equipment also prints out the transmission verification report and the communications list.
Page 135
Messages on the single-row LCD Probable Cause On early models On recent models Document jam (1) The document length exceeds the limitation (400 or 90 cm) registered by firmware switch WSW16. (Refer to Chapter V, Section 3.5.) (Both the document front and rear sensors stay ON even after the document has been fed by the registered length.) (2) The document rear sensor detects no trailing...
Page 136
Messages on the single-row LCD Probable Cause On early models On recent models The cover sensor detects that the control panel ASSY is not closed. FAX-T78 Messages on the Probable Cause double-row LCD The ribbon sensor detects that no ribbon cartridge is loaded or the ink ribbon has run out.
Page 137
Messages on the Probable Cause double-row LCD The registration sensor detects no paper when paper should be fed in copying or in list/report output. (NOTE 1) In the scanning compensation data list printed by the maintenance-mode function code 05, less than fifty percent of the white level data is faulty. (This message may appear only in the maintenance mode.) The thermistor in the recording head caused a heat error.
[ 2 ] Error codes shown in the "MACHINE ERROR _ _" message Error Code Error factor (Hex.) ( 81 Cam sensor error in the drive unit. ) ( 85 Ink ribbon empty. ) ( 87 Fails to complete the sequence of recording operation. ) Wrong or weak contact of the recording head connectors.
Page 139
Error Code Error factor (Hex.) ( 8101 The cam sensor sticks to OFF. ) ( 8102 The cam sensor sticks to ON. ) ( 8103 At the unexpected timing, the cam sensor detects the switching cam being in the home position. ) ( 8104 The cam sensor cannot detect the home position of the switching cam even after one full turn of the cam.
Page 140
NOTE: Four-digit error codes listed above are preceded by MACHINE ERR instead of MACHINE ERROR. Error codes in parentheses do not appear in the "MACHINE ERR _ _ _ _," since those errors are displayed as messages described in "[ 1 ] Error messages on the LCD." You can display those error codes in the maintenance mode (Function code 82).
Communications Errors If a communications error occurs, the facsimile equipment emits an audible alarm (intermittent beeping) for approximately 4 seconds, displays the corresponding error message, and prints out the transmission verification report if the equipment is in sending operation. VI - 8...
Page 142
Definition of Error Codes on the Communications List Calling Code 1 Code 2 Causes Wrong number called. No dial tone detected before start of dialing. Busy tone detected before dialing. 2nd dial tone not detected. No loop current detected.* Busy tone detected after dialing or called. No response from the remote station in sending.
Page 143
Compatibility [checking the NSF and DIS] Code 1 Code 2 Causes Remote terminal only with V.29 capability in 2400 or 4800 bps transmission. Remote terminal not ready for polling. Remote terminal not equipped with password function or its password switch OFF. Remote terminal not equipped with or not ready for confidential mail box function.
Page 144
Instructions received from the remote terminal [checking the NSC, DTC, NSS, and DCS] Code 1 Code 2 Causes Illegal coding system requested. Illegal recording width requested. ECM requested although not allowed. Polled while not ready. No document to send when polled. Nation code or manufacturer code not coincident.
Page 145
ID checking Code 1 Code 2 Causes Password plus "lower 4 digits of telephone number" not coincident. Password not coincident. Polling ID not coincident. Entered confidential mail box ID uncoincident with the mail box ID. Relay broadcasting ID not coincident. Entered retrieval ID uncoincident with that of the mail box ID.
Page 146
Signal isolation Code 1 Code 2 Causes Unable to detect video signals and commands within 6 seconds after CFR is transmitted. Received PPS containing invalid page count or block count. (10) Video signal reception Code 1 Code 2 Causes Error correction sequence not terminated even at the final transmission speed for fallback.
Page 147
(12) Maintenance mode Code 1 Code 2 Causes Failed to detect 1300 Hz signal in burn-in operation. Failed to detect PB signals in burn-in operation. Failed to detect any command from the RS-232C interface in burn-in operation. (13) Equipment error Code 1 Code 2 Causes...
2. TROUBLESHOOTING Introduction This section gives the service personnel some of the troubleshooting procedures to be followed if an error or malfunction occurs with the facsimile equipment. It is impossible to anticipate all of the possible problems which may occur in future and determine the troubleshooting procedures, so this section covers some sample problems.
Troubleshooting Procedures [ 1 ] Control panel related Trouble Check: (1) LCD shows nothing. • Panel-main harness between the main PCB and the control PCB • Interfaces between the main PCB, NCU PCB and power supply • LCD • Control panel PCB •...
[ 3 ] Communications related Trouble Check: (1) No tone is transmitted. • Main PCB • NCU PCB [ 4 ] Paper/document feeding related Trouble Check: (1) Neither "COPY: PRESS • Sensors by using the maintenance-mode function code 32. COPY" nor "FAX: NO. & (Refer to Chapter V, Section 3.8, "Sensor Operational Check".) START"...
[ 5 ] Print-image related If the received or sent image has any problem, first make a copy with the facsimile equipment. If the copied image is normal, the problem may be due to the remote terminal; if it is abnormal, proceed to the following checks: Trouble Check:...
Trouble Check: (7) Image distortion In communications • Error code displayed (Refer to Section 1, "ERROR INDICATION" in this chapter.) • NCU PCB • Main PCB At the scanner • Separation roller and its related sections • Document LF roller and its related gears •...
Page 154
(2) Press the 7 and 4 keys in this order in the initial stage of the maintenance mode. The current customizing code (e.g., 9001 in the case of FAX560 U.S.A. versions) appears. (3) Enter the desired customizing code (e.g., 0002 in the case of FAX580MC Canadian versions).
Page 155
0035 SOUTH AMERICA 0035 0035 BRAZIL 0042 0042 MEXICO 0035 0035 0035 Model Versions FAX560 (FAX1280) FAX580MC (FAX1980MC) China 0020 0020 Model Versions FAX560 (FAX645/FAX816) FAX580MC (FAX685MC) FAX660MC (MFC960MC) AUSTRALIA 0006 0006 0006 NEW ZEALAND...
Page 157
FAX560/FAX580MC/MFC660MC FAX-T72/FAX-T74/FAX-T76/FAX-T78 FAX-T82/FAX-T84/FAX-T86 FAX645/FAX685MC/MFC960MC FAX1280/FAX1980MC/FAX816 Appendix 2. Circuit Diagrams A. Main PCB B. Network Control Unit (NCU) PCB C. Control Panel PCB D. Power Supply PCB...
Page 158
Main PCB 1/5 (FAX560/FAX645/FAX816/ Ceramic capacitor FAX1280/FAX-T72/FAX-T74/ FAX-T82/FAX-T84)
Page 159
Main PCB 2/5 (FAX560/FAX645/FAX816/ FAX1280/FAX-T72/FAX-T74/ FAX-T82/FAX-T84)
Page 160
Main PCB 3/5 (FAX560/FAX645/FAX816/ Ceramic capacitor FAX1280/FAX-T72/FAX-T74/ FAX-T82/FAX-T84)
Page 161
Main PCB 4/5 (FAX560/FAX645/FAX816/ Ceramic capacitor FAX1280/FAX-T72/FAX-T74/ FAX-T82/FAX-T84)
Page 162
Not assy Not assy Not assy Not assy Not assy Not assy Not assy Y81030012 CC50C103B Not assy Y81030012 CC50C103B Not assy Not assy Not assy CC: Ceramic capacitor EC: Aluminum electrolytic capacitor CN: Connector Main PCB 5/5 (FAX560/FAX645/FAX816/ FAX1280/FAX-T72/FAX-T74/ FAX-T82/FAX-T84)
Page 163
Main PCB 1/5 (FAX580MC/FAX685MC/FAX1980MC/ Ceramic capacitor FAX-T76/FAX-T86/MFC660MC/ MFC960MC)
Page 164
Main PCB 2/5 (FAX580MC/FAX685MC/FAX1980MC/ Ceramic capacitor FAX-T76/FAX-T86/MFC660MC/ MFC960MC)
Page 165
Main PCB 3/5 (FAX580MC/FAX685MC/FAX1980MC/ Ceramic capacitor FAX-T76/FAX-T86/MFC660MC/ MFC960MC)
Page 166
Main PCB 4/5 (FAX580MC/FAX685MC/FAX1980MC/ Ceramic capacitor FAX-T76/FAX-T86/MFC660MC/ MFC960MC)
Page 167
'00.3.9 '00.5.26 '00.6.29 '00.6.19 '00.6.19 → → → → 11: US 27: NZ 31: EUR 32: ASIA 33: AUSTRAL 34: SWITZ PAGE NOTE ADDRESS PART CODE PART NAME PART CODE PART NAME PART CODE PART NAME PART CODE PART NAME PART CODE PART NAME PART CODE...