Brother FAX-615 Service Manual Download Page 73

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V –

Trouble

Action to be taken

(5) Faint/dark image.

[At scanning side]

• Check the LED array.

• Check the main PCB.

• Check that the compression springs beneath the recording

head are set in place.

[At recording side]

(6) Improper image align-

ment.

[In communications]

• Check the displayed error code. (Refer to Chap. IV.)

• Check the connection between the main PCB and the NCU

PCB.

• Check the interfaces between the main PCB, NCU PCB, and

CCD & lens holder ASSY.

• Check the main PCB.

• Check the main-head harness between the main PCB and the

recording head.

• Check the main PCB.

[At scanning side]

[At recording side]

(7) Stretched-out image or

compressed image.

[In communications]

• Check the displayed error code. (Refer to Chap. IV.)

• Check the separator and its related section.

• Check the document feed rollers and their related gears.

• Check the solenoid and the planetary gear train.

• Check the drive motor and its harness.

• Check that the compression springs beneath the recording

head are set in place.

• Check the platen and its gear.

• Check the solenoid and the planetary gear train.

• Check the drive motor and its harness.

[At scanning side]

[At recording side]

Summary of Contents for FAX-615

Page 1: ...FACSIMILE EQUIPMENT SERVICE MANUAL MODEL FAX100 570 615 625 635 675 FAX575M 715M 725M FAX590DT 590MC 825MC 875MC ...

Page 2: ...ht Brother 1995 All rights reserved No part of this publication may be reproduced in any form or by any means without permission in writing from the publisher Specifications are subject to change without notice ...

Page 3: ...rts To perform appropriate maintenance so that the facsimile equipment is always in best condition for the customer the service personnel must adequately understand and apply this manual This manual is made up of five chapters and appendices CHAPTER I GENERAL DESCRIPTION CHAPTER II INSTALLATION CHAPTER III THEORY OF OPERATION CHAPTER IV INDICATION AND INFORMATION PRINTOUT OF ERROR CHAPTER V MAINTE...

Page 4: ...CHAPTER I GENERAL DESCRIPTION ...

Page 5: ...CONTENTS 1 EQUIPMENT OUTLINE I 1 1 1 External Appearance I 1 1 2 Components I 1 2 SPECIFICATIONS I 2 ...

Page 6: ...arge Coupled Device CCD Unit Sensors Power Supply PCB Recorder Cutter Unit CCD Unit Drive Motor for paper document feed and for cutter drive Clutch Solenoid Drive Gears Control Panel Unit Covers Automatic Document Feeder ADF Handset Frame and Miscellaneous Parts Electronic Electrical Section Mechanical Section Facsimile Equipment Package Accessories 1 2 Components The equipment has the following c...

Page 7: ...ling Yes Yes Yes Yes Yes Multi Resolution Transmission Yes Yes Yes Yes Yes Polling Std Sec Del Std Sec Del Std Sec Del Std Sec Del Std Sec Del Delayed Transmission Yes 1 timer Yes 1 timer Yes 1 timer Yes 1 timer Yes 1 timer Coverpage Yes Yes Yes Yes Yes Call Reservation Yes Yes Yes Yes Yes Call Back Message Yes Yes Yes Yes Yes Activity Report Yes Yes Yes Yes Yes Transmission Verification Report Ye...

Page 8: ...lling Std Sec Del Std Sec Del Std Sec Del Seq Std Sec Del Seq Delayed Transmission Yes 3 timers Yes 3 timers Yes 3 timers Yes 3 timers Coverpage Yes Yes Yes Yes Call Reservation Yes Yes Yes Yes Call Back Message Yes Yes Yes Yes Activity Report Yes Yes Yes Yes Transmission Verification Report Yes Yes Yes Yes Page Memory 10 pages 10 pages 50 pages 50 pages ECM Yes Yes Yes Yes Broadcasting Yes Yes Ye...

Page 9: ... Yes TAD Type No No IC Digital ICM Recording Time No No 13 min Remote Control No No Yes Paging No No Yes Toll Saver No No Yes Time Date Stamp No No Yes Message Center No No Yes OGM No No Yes FAX Forwarding No No Yes FAX Retrieval No No Yes Note 4 1293 German and UK versions 1138 Other versions Backup for Voice No No 6 hours Backup for Page Memory No No 6 hours Backup for Clock 15 hours 15 hours 15...

Page 10: ...CHAPTER II INSTALLATION ...

Page 11: ...CHAPTER III THEORY OF OPERATION ...

Page 12: ...ar train III 6 2 4 2 Power transmission for four operation modes III 7 1 Recording mode Solenoid OFF Motor rotation Forward III 7 2 Scanning mode Solenoid OFF Motor rotation Reverse III 8 3 Copying mode Solenoid ON OFF Motor rotation Forward III 8 4 Cutter driving mode Solenoid ON Motor rotation Reverse III 9 2 4 3 Power transmission route III 10 3 CONTROL ELECTRONICS III 11 3 1 Configuration III ...

Page 13: ... 3 Image processing group III 18 4 Analog signal processing group III 19 5 MODEM III 20 3 3 NCU PCB III 21 3 4 Control Panel PCB III 23 3 5 Power Supply III 24 ...

Page 14: ...ve unit Handset Handset mount Main PCB NCU PCB Bottom plate Power supply PCB Scanner frame ASSY Main frame Panel cover ASSY PCI Missing link LCD Control panel Scanner Line NCU Telephone Speaker Drive unit Power supply Recorder Automatic cutter PC Controller 1 2 Functional Block Diagram ...

Page 15: ...er to Section 2 4 Separation roller ASSY Pressure roller Front LF roller ASSY Document Roller mounted on the panel rear cover 2 1 1 Automatic document feeder ADF The ADF which consists of the separation roller and separator feeds documents set on the document stacker starting from the bottom sheet to the top page by page due to the fric tional difference among the separation roller the documents a...

Page 16: ... and cut by the automatic cutter page by page For the drive power source refer to Section 2 4 2 2 1 Anti curl system ACS The ACS eliminates curl peculiar to the rolled recording paper by curving the paper towards the opposite side of the curl with the ACS rod and the ACS plate 2 2 2 Automatic cutter The automatic paper cutter consists of an upper blade rotary and a lower blade station ary As the u...

Page 17: ...ent the reflected light enters the light receiving transistor the sensor signals the detection Mechanical sensors PE paper empty sensor which detects whether the recording paper is present Cover sensor which detects whether the recording paper cover is closed Cutter sensor which detects the home position of the upper rotary blade of the automatic cutter Hook switch sensor which detects whether the...

Page 18: ...5 Front Document rear sensor actuator Document front sensor actuator PE sensor actuator Front Hook switch sensor actuator Drive unit Cover sensor actuator Cutter sensor actuator Location of Sensor Actuators ...

Page 19: ... B Planet gear 20B Arm A Sun gear 18 73 Motor gear Arm A Planet gear 20A Stopper of arm A Arm B Planet gear 20B If the motor rotates the sun gear 18 73 rotates so that the rotational force is transmitted to the engagement between the sun gear and the planet gears 20 Since the arms and planet gears are so designed that the moment of the arms is less than that of the planet gears the arms turn aroun...

Page 20: ...otor rotation Forward In the recording mode the control system deactivates the clutch solenoid see the above fig ure Solenoid OFF Therefore when the motor rotates in the forward direction the clutch lever turns clockwise with the spring and its cutout X becomes engaged with the stopper of arm A Once arm A is locked the planet gear 20A C2 will not be engaged with any other gear but simply idle The ...

Page 21: ...l system at first activates the clutch solenoid to release the stopper of arm A from coutout X of the clutch lever while rotating the motor in the forward direction Accordingly the sun gear 18 73 B rotates counterclockwise so that both the planet gears 20B C1 and 20A C2 transmit the rotation to the platen gear E and the roller gears separation roller gear and LF roller gear respectively Once the p...

Page 22: ...the motor rotates in the reverse direction the sun gear 18 73 B rotates clockwise so that the planet gear 20A C2 transmits the rotation to the cutter gear Q Since the planet gear 20B C1 is blocked by section Y of the clutch lever it remains idling without engaging with any other gear Q Cutter gear C2 Planet gear 20A B Sun gear 18 73 Section Y of clutch lever Front C1 Planet gear 20B ...

Page 23: ...r gear A Motor gear B Sun gear 18 73 C1 Planet gear 20B C2 Planet gear 20A D Gear 18 26 E Platen gear F Gear 16A G Gear 16B H Gear 24 1 Recording Mode Solenoid OFF Motor rotation forward C1 D E A B C2 idling 2 Scanning Mode Solenoid OFF Motor rotation reverse C1 idling A B C2 F G H I J K L M N O 3 Copying Mode Solenoid ON OFF Motor rotation forward C1 D E A B C2 P F G H I J K L M N O 4 Cutter Driv...

Page 24: ...cording head Motor PCI Image processor DRAM LED array and CCD PCB 3 CONTROL ELECTRONICS 3 1 Configuration The hardware configuration of the facsimile equipment is shown below E2PROM Electrically Erasable Programmable Read only Memory DRAM Dynamic Random Access Memory Block Diagram of Main PCB Configuration of Facsimile Equipment 3 2 Main PCB The main PCB which is the nucleus controlling the entire...

Page 25: ...PCB Circuit Diagram 1 4 1 FAX engine ASIC which integrates a CPU MODEM and gate array 2 Clock for MODEM 3 Clock for CPU 4 Clock for calendar clock 5 Reset IC 6 LED array light intensity control circuit and connector 7 Recording head drive voltage detector 8 Control panel connector ...

Page 26: ...Main PCB Circuit Diagram 2 4 1 ROM 2 megabit Note that the sample machines for demonstration have a 4 megabit ROM 2 E2 PROM 16 kilobit 3 DRAM 256 kilobit for the FAX100 570 615 625 635 675 4 DRAMs 256 kilobit for the FAX575M 715M ...

Page 27: ...m 3 4 1 Image processor Image processing IC 2 Connector for the CCD PCB 3 Recording head temperature detector and head connector 4 Motor driver and connector 5 Clutch solenoid connector 6 Document front sensor photosensor 7 Document rear sensor photosensor ...

Page 28: ...ects either input signals from the handset or those from the MODEM 3 3 Selects either sound signals e g alarm beeps key clicks and ringer sounds generated by the FAX engine or signals selected by 3 1 4 Amplifier circuit for signals outputted from the MODEM 5 Amplifier shaper circuit for signals inputted from the communications network 6 Speaker amplifier circuit Amplifies sounds issued from the ab...

Page 29: ...d gate array 2 Clock for CPU 3 Clock for calendar clock 4 ROM 2 megabit Note that the sample machines for demonstration have a 4 megabit ROM 5 E2PROM 16 kilobit in the FAX725M 590DT 590MC 825MC 32 kilobit in the FAX875MC 6 Control panel connector 7 LED array light intensity control circuit and connector 8 Recording head drive voltage detector ...

Page 30: ...ilobyte DRAMs FAX590DT 590MC 825MC 875MC Two 512 kilobyte DRAMs 2 Calendar clock backup circuit for the FAX725M 3 DRAM backup circuit and nickel hydrogen battery connector for the FAX590DT 590MC 825MC 875MC 4 DRAM refresh circuit for the FAX590DT 590MC 825MC 875MC 5 Reset IC ...

Page 31: ...m 3 5 1 Image processor Image processing IC 2 Connector for the CCD PCB 3 Recording head temperature detector and head connector 4 Motor driver and connector 5 Clutch solenoid connector 6 Document front sensor photosensor 7 Document rear sensor photosensor ...

Page 32: ...e or signals selected by 2 1 3 Voice switching analog selectors 3 1 Selects either input signals from the communications network or those from the MODEM then feeds them to the speaker 3 2 Selects either signals inputted from the communications network or recorded voice signals inputted from the microphone or handset then feeds them to the MODEM 4 Speaker output circuit and connector 5 Microphone c...

Page 33: ...III 20 5 MODEM Main PCB Circuit Diagram 5 5 1 MODEM 2 Clock for MODEM ...

Page 34: ...nal telephone is attached to the facsimile equipment the NCU should have a loop current detector to identify the hook state by detecting loop current If the facsimile equipment has an automatic answering facility the NCU should be equipped with a calling signal detector which detects a calling signal and tells it to the CPU in the FAX engine The circuit related to a line transformer allows the lin...

Page 35: ...III 22 NCU Circuit Diagram 2 1 3 5 6 7 8 9 4 2 a ...

Page 36: ...mmands issued from the FAX engine on the main PCB The calendar clock is backed up by the backup circuit on the main PCB The panel FPC is a flexible keyboard PCB which integrates the key matrix having rubber keytops Control Panel PCB and its Related Circuit FAX Engine Backup Circuit 5V Reset Circuit 5V POWER I O Ports Serial Communications Ports RESET RESET LEDS Panel FPC Key Matrix LCD Main PCB Co...

Page 37: ...6V ON OFF control signal sent from the main PCB turns High The 26 6V power source mainly drives the motor for feeding documents and recording pa per Signals other than 26 6VH are connected to the main PCB through the NCU PCB and 26 6VH is fed to the recording head Fuse Lightning Surge Absorption Circuit Link Filter Rectifier Circuit Commercial AC Power Line Output Feedback 26 6 V Output Circuit 5 ...

Page 38: ...CHAPTER IV INDICATION AND INFORMATION PRINTOUT OF ERROR ...

Page 39: ...RINTOUT OF ERROR IV 1 2 EQUIPMENT ERROR IV 1 2 1 Error Messages on the LCD IV 1 2 2 Error Codes Shown in the MACHINE ERROR xx message IV 2 3 COMMUNICATIONS ERROR IV 4 3 1 Definition of Error Codes on the Communications List IV 5 ...

Page 40: ...er latest error message make the equipment enter the maintenance mode and press 8 and 2 keys for details refer to Chapter V Subsection 3 3 9 2 1 Error Messages on the LCD Messages on the LCD Probable Cause PAPER ROLL EMPTY The paper empty PE sensor detects that no recording paper is present PRINTER JAM The recording paper failed to return to the printing position after it had been cut COVER OPEN T...

Page 41: ...The upper rotary blade of the automatic cutter failed to return to the home position within the specified time after cutting the recording paper CLEAN UP SCANNER In the scanning compensation data list printed by the mainte nance mode function No 05 less than fifty percent of the white level data is faulty SCANNER ERROR In the scanning compensation data list printed by the mainte nance mode functio...

Page 42: ...ing scanning A7 One line feeding time out error A8 One line scanning time out error A9 Abnormal scanning reference voltage AB Document feed in amount measuring error AC Less than 50 faulty of white level data B1 CODEC LSI error B8 Amplifier gain error B9 Light emission intensity error of the LED array BC Scanning error Reduction miss BD Scanning error Enlargement miss D1 The MODEM setup bit sticks...

Page 43: ...csimile equipment 1 emits an audible alarm intermittent beeping for approximately 4 seconds 2 displays the corresponding error message and 3 prints out the transmission verification report if the equipment is in sending operation Transmission Verification Report Sample ...

Page 44: ...ponse from the remote station in receiving Available in Germany and Austria only Code 1 Code 2 Causes 2 Command reception Code 1 Code 2 Causes 20 01 Unable to detect a flag field 20 02 Carrier was OFF for 200 ms or longer 20 03 Abort detected 1 in succession for 7 bits or more 20 04 Overrun detected 20 05 A frame for 3 seconds or more received 20 06 CRC error in answer back 20 07 Undefined command...

Page 45: ...d with password function or its password switch OFF 32 11 Remote terminal not equipped with or not ready for confi dential mail box function 32 12 Remote terminal not equipped with or not ready for relay broadcasting function 32 13 No confidential mail in the remote terminal 32 14 The available memory space of the remote terminal is less than that required for reception of the confidential or rela...

Page 46: ... coincident 40 11 Unregistered group code entered for relay broadcasting function or the specified number of broadcasting subscrib ers exceeding the limit 40 12 Retrieval when not ready for retrieval 40 13 Polled by any other manufacturers terminal while waiting for secure polling 40 17 Invalid resolution selected 4 Instructions received from the remote terminal checking the NSC DTC NSS and DCS Co...

Page 47: ...ntered confidential mail box ID uncoincident with the mail box ID 63 05 Relay broadcasting ID not coincident 63 06 Entered retrieval ID uncoincident with that of the mail box ID Code 1 Code 2 Causes 6 ID checking 7 DCN reception Code 1 Code 2 Causes 74 DCN received 8 TCF transmission reception Code 1 Code 2 Causes 80 01 Fallback impossible ...

Page 48: ...ed on 500 lines A0 14 Decoding error continued for 10 seconds A0 15 Time out Five seconds or more for one line transmission A0 16 RTC not found and carrier OFF signal detected for 6 seconds A0 17 RTC found and command detected for 60 seconds A8 01 RTN PIN or ERR received at the calling terminal A9 01 RTN PIN or ERR received at the called terminal AA 18 Receive buffer full during receiving into mem...

Page 49: ...ect 1300 Hz signal in burn in operation E0 02 Failed to detect PB signals in burn in operation E0 03 Failed to detect any command from the RS 232C interface in burn in operation Code 1 Code 2 Causes 13 Equipment error FF xx Equipment error For xx refer to Section 2 2 ...

Page 50: ...CHAPTER V MAINTENANCE ...

Page 51: ...NCU PCB and Power Supply PCB V 11 1 9 Scanner Frame ASSY V 13 1 10 Drive Unit V 14 1 11 Handset Mount and Speaker V 15 Lubrication V 16 2 TROUBLESHOOTING V 17 2 1 Introduction V 17 2 2 Precautions V 17 2 3 Checking prior to Troubleshooting V 17 3 MAINTENANCE MODE V 23 3 1 Entry into the Maintenance Mode V 23 3 2 List of Maintenance mode Functions V 23 3 3 Detailed Description of Maintenance mode F...

Page 52: ... Firmware switch setting and printout V 28 3 3 6 Operational check of control panel PCB V 66 3 3 7 Sensor operational check V 69 3 3 8 CCD scanner area setting V 69 3 3 9 Equipment error code indication V 70 ...

Page 53: ...quipment to discharge static electricity or the electronic parts may be damaged due to the electricity charged in your body 5 When transporting PCBs be sure to wrap them in conductive sheets such as aluminum foil 6 Be sure to reinsert self tapping screws correctly if removed 7 Unless otherwise specified tighten screws to the torque values listed below Tapping screws M2 6 3 5 kgf cm M3 x 8 5 kgf cm...

Page 54: ...ension See below Recording paper roll Curled cord Handset Receive wire extension Document wire extension How to Access the Object Component On the next page is a disassembly order flow which helps you access the object compo nent To remove the scanner frame ASSY for example first find it on the flow and learn its number 9 in this case You should remove parts numbered 6 through 8 so as to access th...

Page 55: ...Separation roller ASSY Document front sensor actuator Document rear sensor actuator PE sensor actuator Handset mount Speaker 11 On the main PCB are the following photoelectric sensors Document front sensor PH1 Document rear sensor PH2 On the NCU PCB are the following mechanical switches PE sensor SW1 Cover sensor SW2 Cutter sensor SW3 Hook switch sensor SW4 10 Drive unit Motor Gears Cover sensor a...

Page 56: ...ROM cover from the main frame 4 Lift up the ROM cover Slot A Pawls Flat screwdriver Main frame Head release lever ROM cover Recording paper cover Recording paper cover Main frame Boss B 1 2 Recording Paper Cover 1 Open the recording paper cover 2 As shown below press section B with your thumb to release the recording paper cover from the bosses provided on the main frame ...

Page 57: ...ver ASSY 3 Push the right and left arms of the panel cover ASSY outwards with you thumbs as shown below to unhook them from the bosses provided on the main frame then open the panel cover ASSY further Main PCB Main panel harness Arm Main panel harness Routing the harness Panel cover ASSY Main PCB Panel cover ASSY ...

Page 58: ...n below and unhook the panel rear cover from the 15 x pawls provided on the control panel 5 To remove the control panel PCB FPC key and LCD unhook the PCB from the four y pawls provided on the control panel 14243 ADF parts Panel rear cover FPC key 15 x pawls 4 y pawls Control panel LCD Control panel PCB Rear Front Reassembling Notes When installing the panel rear cover to the control panel first f...

Page 59: ...r cutter unit 1 Disconnect the main head harness from the recorder PCB 2 Remove the ratchet from the upper blade shaft taking care not to deform it 3 Slide the ACS plate upwards while pulling sections a towards you 4 Unlock the two latches b of the cutter chute from the cutter chassis and pull up the cutter chute Main head harness Upper blade shaft Ratchet Slightly pull section x to the left and t...

Page 60: ...ver L Cutter chassis Release shaft Spring Platen ASSY ACS catch R ACS catch L Release lever L c 2 3 7 Remove the right bushing from the platen ASSY while releasing the two pawls d Then remove the platen ASSY 8 Push down the recorder PCB and pull it towards you slightly to release the two tabs e from the cutter chassis taking care not to lose three springs 9 Remove the right and left release levers...

Page 61: ...ushing into the cutter chassis from the left side while pressing down the platen and the recorder PCB Platen ASSY Platen Bushing L Cutter chassis 2 1 LF roller ASSY 1 6 LF Roller ASSY 1 Push down the lock arm on the scanner frame ASSY and pull out the LF roller ASSY in the direction of the arrow shown below Scanner frame Right side view Lock arm ...

Page 62: ...V 10 1 7 Bottom Plate 1 Place the machine upside down 2 Remove the five screws 3 Remove the bottom plate Grounding terminal Bottom plate Inside of the bottom plate ...

Page 63: ...rness LED harness Main panel harness Motor harness Main head harness NCU PCB Main PCB Power supply PCB Main head connector Solenoid connector Motor connector FAX725M 590DT 590MC 825MC 875MC Main panel connector LED connector Main head connector Motor connector Solenoid connector Main panel connector CCD connector CCD connector Speaker connector Nickel hydrogen battery connector Solenoid harness Sp...

Page 64: ...NCU PCB and power supply PCB AC cord bushing Grounding plate 4 Disconnect the main PCB and power supply PCB from the NCU PCB Power supply PCB NCU PCB Main PCB SW3 Cutter sensor SW4 Hook switch sensor SW2 Cover sensor SW1 PE sensor PH2 Document rear sensor PH1 Document front sensor ...

Page 65: ...r lens Mirrors CCD lens Scanner frame ASSY Pawls Main frame placed upside down 4 To remove the separation roller ASSY document front and rear sensor actuators press the a b and c locking pawls shown below with the tip of a flat screwdriver respec tively and move the component to be removed to the left Separation roller ASSY Scanner frame ASSY Document front sensor actuator Document rear sensor act...

Page 66: ...ar lens Mirrors 1 10 Drive Unit 1 Remove the two screws 2 Lift up the drive unit 3 To remove the motor press the lock and turn the motor in the direction of the arrow as shown below Lock Motor Drive unit Cover sensor actuator Hook switch sensor actuator Cutter sensor actuator Drive unit Front ...

Page 67: ...ed on the main frame 2 Slightly lift up the handset mount slightly and take it off to the left 3 2 1 Main PCB Speaker harness Pawl Handset mount Speaker harness 3 To remove the speaker or the hook switch unhook the locks with a small blade flat screwdriver to disassemble the handset mount 4 Slide the speaker to the right 1 3 2 Handset mount placed upside down Locks Hook switch Speaker ...

Page 68: ...ply two grains of grease Molicoat EM 30 to each of the following lubrication points 1 LF roller ASSY and grounding plates 3 LF roller ASSY Grounding plate Scanner frame ASSY Separation roller ASSY 2 Separation roller ASSY ...

Page 69: ...om the outlet when removing the covers and PCBs adjusting the mechanisms or conducting continuity testing with a circuit tester 2 When disconnecting the connectors do not pull the lead wires but hold the connector housings 3 Before handling the PCBs touch a metal portion of the machine to discharge static electricity charged in your body When repairing the PCBs handle them with extra care When rem...

Page 70: ... interfaces between the main PCB NCU PCB and power supply PCB Check the control panel PCB Check the FPC key Check the main PCB Telephone related Trouble Action to be taken Check the FPC key Check the control panel PCB Use the maintenance mode function No 13 Refer to Section 3 If any defective keys are found replace them Check the NCU PCB Check the main PCB 1 No phone call can be made 2 Speed diali...

Page 71: ... not If yes proceed to the following checks If not refer to item 1 above Check the speaker Check the NCU PCB Check the main PCB 4 Dial does not switch between tone and pulse Check the main PCB 5 Telephone does not ring Check the speaker Check the NCU PCB Check the main PCB Communications related Trouble Action to be taken 1 No tone is transmitted Check the main PCB Check the NCU PCB ...

Page 72: ...d harness between the NCU PCB and the recording head Check that the compression springs beneath the recording head are set in place Check the main PCB Check the recording head At recording side 2 Image has white vertical streaks At scanning side At recording side Check the CCD lens holder ASSY Check the recording head 3 All black images At scanning side Check the interfaces between the main PCB NC...

Page 73: ... Check the main head harness between the main PCB and the recording head Check the main PCB At scanning side At recording side 7 Stretched out image or compressed image In communications Check the displayed error code Refer to Chap IV Check the separator and its related section Check the document feed rollers and their related gears Check the solenoid and the planetary gear train Check the drive m...

Page 74: ... Check the main PCB Check the solenoid and the planetary gear train Check the drive motor and its harness 3 Recording paper not fed Check the ADF and its related section Check the drive motor and its harness Check the recording paper feed rollers and their related gears Check the solenoid and the planetary gear train Check the main PCB 4 The CUTTER JAM message cannot be removed Check the drive mot...

Page 75: ...ressing the 9 key twice in the initial maintenance mode restores the equip ment to the standby state Pressing the STOP button after entering only one digit restores the equip ment to the initial maintenance mode If an invalid function code is entered the equipment resumes the initial mainte nance mode 3 2 List of Maintenance mode Functions Maintenance mode Functions 1 3 3 6 14 15 3 3 4 3 3 3 3 3 5...

Page 76: ...table Function code 10 accesses the firmware switches WSW01 to WSW34 each of which has eight selectors You should not allow end users to access all of those selectors but you may allow them to access user accessible selectors which are shaded in the firmware switch tables in Subsection 3 3 5 The service personnel should instruct end users to follow the procedure given below 1 Press the FUNCTION ke...

Page 77: ... page comments Outside line number Telephone function registration One touch dialing Speed dialing Group dialing 144444424444443 All of these will be initialized 14444444444442444444444443 14444244443 These will not be initialized These will be initialized Operating Procedure 1 Press the 0 and 1 keys or the 9 and 1 keys according to your need in this order in the initial maintenance mode The PARAM...

Page 78: ...EL 1 will appear on the LCD 2 The equipment prints out the scanning compensation data list containing the following FAX100 570 615 625 a 2 value quantized white level data 208 bytes b 2 value quantized black level data 1 byte c 2 value quantized LED light intensity value 1 byte Other models a 2 value quantized white level data 208 bytes b 2 value quantized black level data 1 byte c Photo mode whit...

Page 79: ...es the 5th document and displays P 05 on the LCD iv feeds in and out the 6th through 9th documents while counting without copying them as the LCD shows the corresponding count and v copies the 10th document and displays P 10 on the LCD 3 Upon completion of feeding in and out all of the documents the final count appears on the LCD 4 Press the STOP button to return the equipment to the initial maint...

Page 80: ...e setting WSW04 TRANSFER facility setting WSW05 1st dial tone and busy tone detection WSW06 PAUSE key setting and 2nd dial tone detection WSW07 Dial tone setting 1 WSW08 Dial tone setting 2 WSW09 Protocol definition 1 WSW10 Protocol definition 2 WSW11 Busy tone setting WSW12 Signal detection condition setting WSW13 Modem setting WSW14 AUTO ANS facility setting WSW15 REDIAL facility setting WSW16 F...

Page 81: ... values onto the E2PROM and readies the equipment for accepting a firmware switch number 6 Repeat steps 2 through 5 until the modification for the desired firmware switches is completed 7 Press the SET or STOP button to return the equipment to the initial maintenance mode NOTES To cancel this operation and return the equipment to the initial maintenance mode during the above procedure press the ST...

Page 82: ... N 0 PB 1 DP Selectors 1 and 2 Dial pulse generation mode These selectors set the number of pulses to be generated in pulse dialing N Dialing N generates N pulses Dialing 0 generates 10 pulses N 1 Dialing N generates N 1 pulses 10 N Dialing N generates 10 N pulses Selectors 3 and 4 Break time length in pulse dialing These selectors set the break time length in pulse dialing Example If 1 2 and 3 ar...

Page 83: ...ing Attenuator for the beep sound level No 1 2 0 0 70 ms 0 1 80 ms 1 0 90 ms 1 1 100 ms No 3 4 0 0 70 ms 0 1 80 ms 1 0 90 ms 1 1 140 ms 0 0 dB 1 8 dB 0 0 dB 1 4 dB 0 0 dB 1 2 dB 0 0 dB 1 1 dB Selectors 1 through 4 Tone signal transmission time length and Min pause These selectors set the tone signal transmission time length and minimum pause in tone di aling Example If 1 2 3 4 and 5 are dialled 1 ...

Page 84: ...electors 2 through 4 Min detection time length of PABX dial tone required for starting dialing Upon detection of the PABX dial tone for the time length set by these selectors the equip ment starts dialing These selectors are applicable only when both selectors 6 and 7 are set to 1 Detection Selectors 6 and 7 Dial tone detection in PABX These selectors activate or deactivate the dial tone detection...

Page 85: ...0 Hz C Dual tone detection frequency in ICM recording Tone detection level in ICM recording 5 6 Break time length for flash function 7 8 No 7 8 0 0 80 ms 0 1 110 ms 1 0 250 ms 1 1 500 ms No 5 6 0 0 200 ms 0 1 300 ms 1 0 500 ms 1 1 700 ms Earth time length for earth function 4 0 OFF 1 High NOTE The WSW04 is not applicable in those countries where no transfer facility is supported e g U S A Selector...

Page 86: ... the PSTN Setting all 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 However in those countries which support no dial tone detection function e g in the U S A setting these selectors to 1 makes the equipment start dialing after a WAIT of 3 5 seconds For the detecting conditions of the 1s...

Page 87: ... disconnect the line Setting selectors 5 and 6 to 0 and 1 respectively makes the equipment detect a busy tone only after dialing and disconnect the line Setting both of selectors 5 and 6 to 1 makes the equipment detect a busy tone before and after dialing and then disconnect the line Selector 7 Busy tone detection in automatic receiving mode This selector determines whether or not the equipment au...

Page 88: ...y setting and 2nd dial tone detection Selectors 1 2 3 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 Pressing the PAUSE key inserts WAIT in pulse dialing as defined in the above table If the PAUSE key is pressed repeatedly the equipment beeps a refusal sound and refuses the entry In hook up dialing however the equipment allows repeated pressing with an acceptance sound but inserts WAIT only for the first pressing ...

Page 89: ...y selec tors 1 through 3 Setting 1 1 0 or 1 1 1 This function does not apply in those countries where no dial tone detection function is sup ported Selector 7 No of dial tone detection times This selector sets the number of dial tone detection times required for starting dialing Selector 8 2nd dial tone interrupt detecting time This selector sets the allowable time length of an interrupt which sho...

Page 90: ...gh 3 of WSW05 are set to 1 1 1 Selector 3 Line current detection This selector determines whether or not the equipment should detect a line current before starting dialing Selectors 4 through 6 2nd dial tone detection level These selectors set the detection level of the 2nd dial tone Selector 7 1st dial tone interrupt detecting time This selector sets the allowable time length of an interrupt whic...

Page 91: ...al tone and busy tone before dialing Time out length for 1st and 2nd dial tone detection 4 5 Selectors 1 through 3 1st dial tone detection time length Upon detection of the 1st dial tone for the time length set by these selectors the equipment starts dialing This setting is effective only when selectors 1 through 3 of WSW05 are set to 1 1 1 Selectors 4 and 5 Time out length for 1st and 2nd dial to...

Page 92: ...however set selector 1 to 1 so that the facsimile equipment can divide a message into 64 octet frames Remarks The error correction mode ECM is a facsimile transmission manner in which the equipment divides a message into frames for transmission so that if any data error occurs on the transmission line the equipment retransmits only those frames containing the error data Selectors 3 and 4 No of ret...

Page 93: ... selector sets the time length from when the equipment transmits the last dial digit until the CML relay comes on Selector 3 Time length from CML ON to CNG transmission This selector sets the time length until the equipment transmits a CNG after it turns ON the CML relay Selector 4 Time length from CML ON to CED transmission This selector sets the time length until the equipment transmits a CED af...

Page 94: ...n those countries where no busy tone detection is sup ported e g U S A The setting of WSW11 is effective only when selectors 5 and 6 of WSW05 are set to 0 1 or 1 1 Busy tone detection Selectors 1 and 2 Frequency band range These selectors set the frequency band for busy tone to be detected Selectors 4 through 8 ON OFF time length ranges These selectors set the ON and OFF time length ranges for bus...

Page 95: ...he OFF state of calling signal Ci for the time length which is above the value set by selectors 1 and 2 and less the value set by selectors 3 and 4 it inter prets the Ci signal as OFF Selectors 5 and 6 Detecting time setting These selectors set the time length required to make the equipment acknowledge itself to be called That is if the equipment continuously detects calling signals with the frequ...

Page 96: ...signals on a line Attenuation in the high band frequency is greater than in the low band frequency Set these selectors according to the distance from the telephone switchboard to the facsimile equipment Selectors 3 and 4 Reception level These selectors set the optimum receive signal level Selectors 5 through 8 Modem attenuator These selectors are used to adjust the transmitting level of the modem ...

Page 97: ...to 5 times 1 0 1 1 2 to 6 times 1 1 0 0 1 to 10 times 1 1 0 1 2 to 10 times 1 1 1 0 3 to 5 times 1 1 1 1 4 to 10 times 3 4 Frequency band selection Upper limit No 3 4 0 0 30 Hz 0 1 55 Hz 1 0 70 Hz 1 1 70 Hz Frequency band selection Lower limit No 1 2 0 0 13 Hz 0 1 15 Hz 1 0 23 Hz 1 1 20 Hz Selectors 1 through 4 Frequency band selection These selectors are used to select the frequency band of calli...

Page 98: ...tes 3 4 5 6 No of redialings No 3 4 5 6 0 0 0 0 16 times 0 0 0 1 1 time 0 0 1 0 2 times 0 0 1 1 3 times 1 1 1 1 15 times 7 8 Not used Selectors 1 through 6 Selection of redial interval and No of redialings The equipment redials by the number of times set by selectors 3 through 6 at intervals set by selectors 1 and 2 This setting is effective only when selector 7 is set to 0 ...

Page 99: ... the equipment to receive data from all telephones connected in parallel as well as the directly connected external one If any of the following troubles occurs frequently set this selector to 0 Dialing from any of the telephones connected in parallel to the outside line starts the fac simile equipment Picking up any handset of the telephones connected in parallel while the facsimile equip ment is ...

Page 100: ...rt when the power is turned on Selector 4 Clock prompt alternate indication on the LCD If this selector is set to 1 the calendar clock and the prompt INSERT DOCUMENT ap pear alternately on the LCD while the equipment is on standby if it is set to 0 only the calendar clock appears Selector 5 Calendar clock type If this selector is set to 0 USA the MM DD YY hh mm format applies if it is set to 1 Eur...

Page 101: ...erative the user can toggle the ACS check sheet output func tion on and off by pressing the right and left arrow keys simultaneously If it is set to 1 Inoperative the user cannot toggle the ACS check sheet output function from the control panel so that the setting specified by selector 5 becomes effective Selector 5 ACS check sheet output function When selector 4 is set to 0 the setting specified ...

Page 102: ...e specified by selectors 1 through 3 the equipment attempts to synchronize the data transmission via the MODEM If the synchronization fails the equipment automatically steps down to the next lowest speed and attempts to synchronize the data transmission again The equipment repeats this sequence while stepping down the transmission speed to the last choice specified by selectors 4 through 6 If the ...

Page 103: ...o fall back to 4800 bps transmission Selectors 2 and 3 Overseas communications mode These selectors should be used if the facsimile equipment malfunctions in overseas commu nications According to the communications error state select the signal specifications Setting selector 2 to 1 allows the equipment to use 1100 Hz CED signal instead of 2100 Hz in receiving operation This prevents malfunctions ...

Page 104: ...these selectors and the delay time specified by WSW25 selectors 1 and 2 should not exceed 40 seconds Selectors 6 and 7 Two way recording For those models equipped with a built in TAD These selectors select the specifications of the two way recording feature Selector 8 Erasion of message For those models equipped with a built in TAD Setting this selector to 0 will erase the message recorded in the ...

Page 105: ...ation starts counting zeros upon detection of 10 ms successive zeros after 50 ms from the head of a series of zeros detected In this case if the detection of 10 ms successive zeros is too late the data counting period will become less than 1 0 sec ond making the called station judge the line condition unacceptable Selectors 2 and 3 Allowable training error rate The called station checks a series o...

Page 106: ...n TAD These selectors set the allowable maximum recording time for an OGM Selectors 3 and 4 Time length from CML ON to start of pseud ring backtone transmission These selectors set the time length after CML becomes ON until the start of pseud ring backtone transmission In those versions which have an OGM facility instead of pseud ring backtone these selec tors set the time length after CML becomes...

Page 107: ... number and PIN For those models equipped with a built in TAD These selectors set the pause time between paging telephone number and PIN private identification number for the paging feature Selector 8 Automatic shift to facsimile message receive mode in ICM recording mode For those models equipped with a built in TAD If this selector is set to 0 the equipment automatically shifts to the facsimile ...

Page 108: ...uipment in F T mode 1 3 Not used Selectors 4 and 5 No of CNG cycles to be detected The equipment interprets CNG as an effective signal if it detects CNG signal by the number of cycles specified by these selectors when the line is connected via the external telephone except in the external TAD mode Selectors 6 and 7 No of CNG cycles to be detected For the FAX100 570 615 625 635 675 575M 715M The eq...

Page 109: ...not the voice alarm should be erased from the memory after it is issued Selector 6 Recording quality level For those models equipped with a built in TAD This selector determines the recording quality level this function can be accessed also by the user function 8 8 If it is set to 0 High the sampling rate by selector 7 of WSW27 takes effect if it is set to 1 Normal the sampling rate specified by s...

Page 110: ...0 0 dB 1 0 1 1 dB 1 1 0 2 dB 1 1 1 3 dB 4 5 6 Transmission level of DTMF low band frequency signal No 4 5 6 0 0 0 0 dB 0 0 1 1 dB 0 1 0 2 dB 0 1 1 3 dB 1 0 0 0 dB 1 0 1 1 dB 1 1 0 2 dB 1 1 1 3 dB 7 8 Not used Selectors 1 through 6 Transmission level of DTMF high low band frequency signal These selectors are intended for the manufacturer who tests the equipment for the Standard Never access them ...

Page 111: ...es whether or not the automatic dialing function by caller IDs stored in the memory see the Note below can be accessed If it is set to 0 caller IDs stored in the memory can be called up on the LCD by the user function 6 7 and then pressing the START button when the desired caller ID is displayed dials the caller automatically Note The equipment can store a maximum of the latest 30 incoming caller ...

Page 112: ... TAD If dial tone or busy tone inputted during ICM recording is below the level specified by these selectors the TAD stops recording and disconnects the line Selector 4 Sampling rate when the recording level is set to Normal For those models equipped with a built in TAD This selector determines the sampling rate when selector 6 of WSW27 is set to 0 Normal If this selector is set to 0 the sampling ...

Page 113: ...um short OFF duration in distinctive ringing The ringer pattern consists of short and long rings e g short short long rings This selector sets the minimum OFF duration following a short ring in order to avoid missing ringer tones in distinctive ringing If this selector is set to 1 when the short OFF duration is a minimum of 90 ms long then the equipment will interpret the short OFF as OFF ...

Page 114: ...tion the resolution returns to the default value specified by these selectors Selectors 7 and 8 Default contrast When the equipment is powered up or completes a transaction the contrast returns to the default value specified by these selectors No 5 6 0 0 Standard 0 1 Fine 1 0 Super fine 1 1 Photo No 7 8 0 0 Automatic 0 1 1 0 Super light 1 1 Super dark 123 Default resolution Default contrast ...

Page 115: ...SW33 is applicable to those models equipped with a built in TAD Selectors 4 and 5 First communications speed choice for PCI These selectors are used to set the first communications speed choice with which the equip ment attempts to synchronize the data transmission via the PC interface If the synchroniza tion fails the equipment automatically steps down to the next lowest speed Selector 6 Report o...

Page 116: ... models equipped with a built in TAD Selectors 4 and 5 No of CNG cycles to be detected For the FAX725M 590DT 590MC 825MC 875MC The equipment interprets CNG as an effective signal if it detects CNG signal by the number of cycles specified by these selectors in any of the following cases when the line is connected via the external telephone in the external TAD mode when the line is connected via the...

Page 117: ... the firmware switches Operating Procedure 1 Press the 1 key twice in the initial maintenance mode The CONFIG LIST will appear on the LCD 2 The equipment prints out the configuration list as shown in the figure below 3 Upon completion of printing the equipment returns to the initial maintenance mode Configuration List ...

Page 118: ...rder the equipment beeps and displays the IN VALID OPERATE on the LCD To return to the status ready to accept key button entry for operational check press the STOP button 3 After the last number key or button is pressed the equipment beeps for 1 second 4 To terminate this operation press the STOP button The equipment returns to the initial maintenance mode FAX570 615 HOOK HOLD REDIAL PAUSE SPEED D...

Page 119: ... JKL TUV ABC QZ MNO WXY DEF SHIFT SET CLEAR FUNCTION HELP COPY STOP START 01 02 11 12 03 13 04 14 05 15 06 07 16 17 08 18 09 19 10 20 COVER PAGE TEL INDEX Q SCAN RESOLUTION FINE PHOTO S FINE MODE AUTO F T TAD HOOK HOLD REDIAL PAUSE SPEED DIAL 1 4 7 2 5 8 0 3 6 9 GHI PRS JKL TUV ABC QZ MNO WXY DEF SET CLEAR FUNCTION HELP COPY STOP START 01 02 03 04 05 06 07 08 09 10 L H S VOLUME COVER PAGE TEL INDE...

Page 120: ... H S VOLUME COVER PAGE TEL INDEX Q SCAN PLAY RESOLUTION ERASE RECORD TAD FAX FINE PHOTO S FINE MODE AUTO F T b LED operation check mode 1 Press the 1 and 6 keys in this order in the initial maintenance mode All of the LEDs will come on and go off then each LED will light for 0 5 second in the following order FINE S FINE AUTO F T 2 To terminate this operation press the STOP button The equipment ret...

Page 121: ... 2 Change the detecting conditions e g insert paper through the document sensors open the recording paper cover remove the recording paper shift the upper blade of the au tomatic cutter out of its home position and lift up the handset and then check that the indication on the LCD changes according to the sensor states 3 To stop this operation and return the equipment to the initial maintenance mod...

Page 122: ...ays 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 maintenance mode The LCD shows MACHINE ERROR xx 2 To stop this operation and return the equipment to the initial maintenance mode press the STOP button ...

Page 123: ... 675 575M 715M FAX725M 590DT 590MC 825MC 875MC APPENDICES Circuit Diagrams A Main PCB FAX100 570 615 625 635 675 575M 715M FAX725M 590DT 590MC 825MC 875MC B Network Control Unit NCU PCB C Control Panel PCB D Power Supply PCB ...

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Brother FAX-615, Service Manual

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