Brother MFC 4550 Service Manual Download Page 57

Page: 57 / 191

IV –

1.5

Panel Rear Cover and Control Panel

(1)

Place the control panel ASSY upside down.

(2)

Remove the document pressure bar, ADF parts, and nip-related parts from the panel
rear cover.

(3)

Remove the two screws from the panel rear cover.

(4)

While lifting up the front edge of the panel rear cover, unhook it from the 15 pawls "X"
provided on the control panel.

(5)

Unhook the control panel PCB from the three pawls "Y" on the control panel and take it
out together with the FPC key.

FPC key

Control panel
(placed upside down)

■

Reassembling Notes

•

When installing the spring plate B and separation rubber, align their cutouts with the boss
on the panel rear cover.

Document pressure bar

Spring plate B

Separation rubber

Spring plate A

Panel rear cover

15 "X" pawls

Nip-related parts

Control panel PCB

3 "Y" pawls

ADF
parts

Summary of Contents for MFC 4550

Page 1: ...FACSIMILE EQUIPMENT SERVICE MANUAL MODEL FAX3550 3650 8000P 8200P MFC4450 4550 4550plus MFC6550MC 7550MC 7650MC MFC9000 9500 ...

Page 2: ...ht Brother 1998 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: ...ate 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 six chapters and appendices CHAPTER I GENERAL DESCRIPTION CHAPTER II INSTALLATION CHAPTER III THEORY OF OPERATION CHAPTER IV DISASSEMBLY REASSEMBLY AND LUBRICATION CHAPTER V MAINTENANCE MODE CHAPTER VI ERROR IN...

Page 4: ...y phase of user opera tion CDRH Regulations 110 120V Model only The Center for Device and Radiological Health CDRH of the US Food and Drug Administration implemented regulations for laser products on August 2 1976 These regulations apply to laser products manufactured from August 1 1976 Compliance is mandatory for products marketed in the United States The label shown below indicates compliance wi...

Page 5: ...CHAPTER I GENERAL DESCRIPTION ...

Page 6: ...CONTENTS 1 EQUIPMENT OUTLINE I 1 1 1 External Appearance and Weight I 1 1 2 Components I 1 2 SPECIFICATIONS I 2 ...

Page 7: ...e Approx 13 5 kg FAX3550 3650 8000P 8200P Approx 14 kg MFC4450 4550 4550plus 6550MC 7550MC 7650MC 9000 9500 1 2 Components The equipment consists of the following major components Top cover High voltage power supply ASSY Relay PCB Main PCB NCU PCB ASSY Scanner frame ASSY Main cover Control panel ASSY Heat fixing unit Inner cover Multi purpose sheet feeder Drum unit with toner cartridge loaded Lase...

Page 8: ...no Mono Mono Mono Gray Scale 64 256 256 dpi 400 x 400 600 x 600 600 x 600 Twain Yes Yes Yes ADF Capacity pages 30 30 30 30 Formats TIFF BMP by M L TIFF BMP by M L TIFF BMP by M L OCR Option Yes Yes COPY dpi 200 x 400 200 x 400 600 class 600 class No of Copies 1 99 1 99 1 99 1 99 Sorting No No Yes Yes Reduction Enlargement 50 200 50 200 50 200 50 200 FAX Modem ROCKWELL V12 ROCKWELL V12 ROCKWELL V24...

Page 9: ... x 600 Twain Yes Yes Yes ADF Capacity pages 30 30 30 Formats Import TIFF BMP PCX DCX BTF BTX UNI TIFF BMP PCX DCX BTF BTX MAX TIFF BMP PCX DCX BTF BTX MAX Formats Export TIFF BMP UNI TIFF BMP MAX TIFF BMP MAX OCR Option Yes Yes COPY dpi 200 x 400 200 x 400 200 x 400 600 class No of Copies 1 99 1 99 1 99 1 99 Sorting Yes No No Yes Reduction Enlargement 50 200 50 200 50 200 50 200 FAX Modem ROCKWELL...

Page 10: ...s COPY dpi 200 x 400 300 x 400 300 x 400 200 x 400 No of Copies 1 99 1 99 1 99 1 99 Sorting Available with optional memory Yes Yes Yes Reduction Enlargement 50 200 50 200 50 200 50 200 FAX Modem ROCKWELL V12 ROCKWELL V12 ROCKWELL V24 ROCKWELL V12 Modem Speed 14400 bps FAX only 14400 bps FAX only 14400 bps FAX only 14400 bps FAX only CCITT Group G3 G3 G3 G3 Coding Method MH MR MMR MH MR MMR MH MR M...

Page 11: ...rdware PC Mail Box No No Yes PC only Yes PC only Fax on demand No No Yes PC only Yes PC only Voice on demand No No Yes PC only Yes PC only FAX Forwarding Yes Yes Yes Yes FAX Retrieval Yes Yes Yes Yes MACHINE MEMORY 0 75 MB 0 75 MB 1 MB 2 MB OPTIONAL MEMORY 1 or 2 MB 1 or 2 MB 1 or 2 MB 1 or 2 MB FAX PRINTER FLEX PC FAX Send Receive Option Yes by M L Yes by M L Yes by M L Standard Class 1 2 Class 1...

Page 12: ...es Hardware PC Mail Box No No Yes PC only Yes PC only Fax on demand No No No Yes PC only Voice on demand No No No Yes PC only FAX Forwarding Yes Yes Yes Yes FAX Retrieval Yes Yes Yes Yes MACHINE MEMORY 2 MB 1 MB 1 MB 2 MB OPTIONAL MEMORY 1 or 2 MB No 1 or 2 MB 1 or 2 MB FAX PRINTER FLEX PC FAX Send Receive Option Yes by M L Yes by M L Yes by M L Standard SMSI SMSI SMSI DATA MODEM No No No No INTER...

Page 13: ...ver No No Yes Hardware PC No OGM UK SWISS AUS GER UK SWISS Yes Hardware PC UK SWISS GER Mail Box No No Yes PC only No Fax on demand No No Yes PC only No Voice on demand No No Yes PC only No FAX Forwarding Yes Yes Yes Yes FAX Retrieval Yes Yes Yes Yes MACHINE MEMORY 0 75 MB 1 MB 1 MB 2 MB OPTIONAL MEMORY 1 or 2 MB 1 or 2 MB 1 or 2 MB 1 or 2 MB FAX PRINTER FLEX PC FAX Send Receive Option Yes Yes Opt...

Page 14: ...CHAPTER II INSTALLATION ...

Page 15: ...CONTENTS 1 INSTALLING THE UPDATE DATA TO THE FACSIMILE EQUIPMENT II 1 ...

Page 16: ...indows 3 1 3 11 or Windows 95 Connecting the equipment to your computer 1 Make sure that the equipment s power cord is unplugged from a wall socket 2 Make sure that your computer is powered off 3 Connect the interface cable to the parallel interface port on the back of the equipment and secure it with the lock wires 4 Connect the other end of the interface cable to the printer port of your compute...

Page 17: ... are located If it is a floppy disk drive type A from the command line and press the ENTER key 4 Check that your computer is connected with the facsimile equipment correctly 5 To start the transfer utility transmitting the update data to the flash ROM of the facsimile equipment type the following A ICEN filename b Then press the ENTER key The equipment beeps and shows the CONNECTING on the LCD for...

Page 18: ...CHAPTER III THEORY OF OPERATION ...

Page 19: ... 2 Print process mechanism III 6 1 Charging process III 7 2 Exposing process III 7 3 Developing process III 8 4 Transferring process III 8 5 Erasing process III 8 2 2 3 Heat fixing mechanism III 9 2 3 Sensors and Actuators III 10 3 CONTROL ELECTRONICS III 12 3 1 Configuration III 12 3 2 Main PCB III 13 3 3 Relay PCB III 23 3 4 NCU PCB III 24 3 5 Control Panel PCB III 27 3 6 Power Supply PCBs III 2...

Page 20: ...ular connector Centronics parallel interface Optional serial interface Extended I O connector MFC6550MC 7550MC 7650MC 9000 9500 FAX3550 3650 8000P 8200P MFC4450 4550 4550plus 6550MC 7550MC 7650MC 9000 9500 LED array CCD unit Scanner motor Charging exposing developing transferring erasing and heat fixing processes Electrical charger Laser unit including the polygon motor Laser sensitive drum Develo...

Page 21: ... and ejecting mechanisms Print process mechanism consisting of charging exposing developing transferring and erasing processes Heat fixing mechanism SENSORS AND ACTUATORS Paper pulling in and registration mechanism Paper ejecting mechanism Print process mechanism Heat fixing mechanism Document scanning mechanism Document feeding and ejecting mecha nism SCANNER MECHANISM With paper feeding mechanis...

Page 22: ...nt stacker and starts the scanning operation the scanner motor rotates so that the ADF which consists of the document take in roller ASSY separation roller ASSY ADF parts and nip related parts feeds those documents into the equipment starting from the bottom sheet to the top page by page Each document advances with the document feed roller ASSY to the scanner and then it is fed out of the equipmen...

Page 23: ...ive gear Paper ejection roller drive gear Drum drive gear Laser sensitive drum Multi purpose sheet feeder Paper ejecting mechanism Paper pulling in and registration mechanism Paper feeding mechanism Sheet feeder cover Paper Pull in roller Hopper Registration sensor actuator Registration roller Paper tray Heater roller Paper ejection roller Paper ejection sensor actuator ...

Page 24: ...not rotate In this way the clutch gear switches the transmission of the motor rotation on and off to the pull in roller drive gear The solenoid on off timing and the clutch release lever timing allow this mechanism to pull in a sheet and register it against the registration roller Paper feeding and ejecting mechanism If the main motor rotates clockwise the rotation is transmitted via the gear trai...

Page 25: ...m operation Electrical charge on the drum surface V 1 Charges the drum surface positively 2 Exposes the drum surface to a laser beam to form a latent image and develops the latent image with toner a Unexposed area Non image area b Exposed area Image area 3 Transfers the toner formed image from the drum to paper 4 Erases the residual potential Paper Transfer roller Drum unit Laser sensitive drum Cl...

Page 26: ...Grid Varister Corona wire High voltage power source Approx 280V Positive charging source Paper Laser sensitive drum Laser beam f θ lens Polygon mirror Polygon motor Lens Laser diode Laser detector Laser beam 2 Exposing process When the laser sensitive drum holds a positive electrical charge the laser beam issued from the laser unit scans the drum according to the print image to expose the drum sur...

Page 27: ...he switch a see the above illustration is turned on to negatively charge the transfer roller The toner is positive so the toner image formed on the drum will be transferred onto the paper according to the same principle as for the developing process If the toner image fails to stick to the paper due to paper jam or other errors it will stick to the transfer roller To repulse this toner the switch ...

Page 28: ...r Paper ejection roller Paper Paper ejection sensor actuator Heat fixing unit Heater roller including the FU lamp As the paper passes between the heater roller and the pressure roller in the fixing unit the heater roller fuses the toner on the paper ...

Page 29: ...stration sensor which detects the leading and trailing edges of paper which allows the controller to determine the registration timing and check paper jam Sheet feeder cover sensor which detects whether the sheet feeder cover is closed Paper ejection sensor which detects whether the recording paper goes out of the equip ment Document front sensor which detects the presence of documents Document re...

Page 30: ...xing unit Document sensor PCB Document front sensor actuator Document front sensor Photosensor Toner sensor PCB Sheet feeder cover sensor actuator Sheet feeder cover sensor Photosensor Cover sensor actuator Cover sensor Microswitch High voltage power supply PCB Document rear sensor actuator Document rear sensor Photosensor Heater thermister Paper ejection sensor actuator Paper ejection sensor Phot...

Page 31: ...er lamp board 3 pin 4 pin LASER PRINTING UNIT SCANNER UNIT P1 P3 P2 P4 1 On the relay PCB are these sensors Cover sensor Sheet feeder cover sensor Registration sensor 2 On the toner sensor PCB are these sensors Toner sensor Toner thermister 3 On the high voltage power supply PCB is the paper ejection sensor 4 On the document sensor PCB are these sensors Document front sensor Document rear sensor 5...

Page 32: ...Speaker NCU PCB Hook switch PCB Main PCB ASIC Relay PCB Control panel 3 2 Main PCB The main PCB which is the nucleus controlling the entire operation of the equipment con sists of a FAX engine ASIC memories MODEM motor drive circuits sensor detection cir cuitry and analog circuits for scanning printing and power transmission shifting E2PROM Electrically Erasable Programmable Read only Memory DRAM ...

Page 33: ...m 1 7 1 FAX engine ASIC which manages the I Os memories drivers and image proces sor as well as controlling the laser printing unit 2 8 pin modular connector for the PC interface RS 232C provided on the FAX3550 3650 8000P 8200P 1 2 ...

Page 34: ...us 7650MC Flash ROM 8 megabit which stores programs 2 ROM 8 megabit 512K x 16 bits FAX3550 3650 8000P 8200P MFC4450 4550 4550plus This ROM is used only on the qualification machines for demonstration MFC6550MC 7550MC 7650MC 9000 9500 This ROM stores the PCL4 Driver programs for high quality print 3 DRAMs FAX3550 8000P MFC4550 6550MC 7550MC 9000 9500 FAX3650 8200P MFC4450 4550plus 7650MC DRAM No 10...

Page 35: ...000 9500 E2PROM No 2 3 Model FAX3650 8200P 16K x 1 bit 16K x 1 bit MFC4450 16K x 1 bit MFC4550plus 16K x 1 bit MFC7650MC 32K x 1 bit FAX3650 8200P MFC4450 4550plus 7650MC Not installed Not installed 5 Extended RAM port which allows you to add a memory up to two megabytes 6 Extended I O connector for an optional serial interface board RS 100M which supports the RS 232C and RS 422 Only for the MFC65...

Page 36: ...Synchronous clocks for the CCD unit 1 3 Image signal from the CCD unit 1 4 Signal from the document front sensor 1 5 Signal from the document rear sensor 2 Connector for the control panel 3 Image signal processor FAX3550 3650 8000P 8200P MFC4450 4550 4550plus 200 dpi MFC6550MC 7550MC 7650MC 9000 9500 300 dpi 1 2 3 1 1 1 4 1 5 1 3 1 2 ...

Page 37: ...CB Circuit Diagram 4 7 1 Operational amplifiers for modem to line interface 1 1 RIN signal from line to modem 1 2 TXO signal from modem to line 2 Modem 3 Short pin Mounted on the Turkish versions only 1 2 3 1 1 1 2 ...

Page 38: ... 10 Signal input from the heater thermister 1 11 Signal input from the toner thermister 2 Heater control circuit which prevents the heater from overheating due to ASIC or soft ware malfunction The ASIC controls the HTON signal with the hysteresis characteris tics for stabilized heater control 3 Connector for the low voltage power supply 4 Main motor driver which controls recording paper feeding an...

Page 39: ...0MC 7650MC 9000 9500 Connector P15 is compatible with the standard Centronics parallel interface 2 Backup circuit for the calendar clock of the control panel 2 1 For FAX3550 3650 8000P 8200P MFC4450 4550 4550plus 9000 2 2 For MFC6550MC 7550MC 7650MC 9500 This circuit backs up also the im age and voice data 1 2 2 1 2 2 ...

Page 40: ...XD Line output signal from the MODEM TLSL Handset microphone signal RL1 Line input signal to the MODEM RL2 Line monitor signal ADLC Line current detection input DASEND Output level matching signal DAST Side tone level matching signal Only in the European versions DPS External telephone switching signal EAT Earth function signal POL Polarity inversion detection signal 1 2 2 1 2 2 2 3 2 5 2 6 2 4 2 ...

Page 41: ...s nor mally connected to the line 2 5 Device RNG If 0 the speaker rings if 1 it transfers control to the device MSL 2 6 Device MSL If 0 the speaker works for converting line signals to sound if 1 it works for playing back a TAD recorded message 2 7 Device MUTE that mutes the receiver tone 3 Speaker amplifiers 3 1 For FAX3550 3650 8000P 8200P MFC4450 4550 4550plus 9000 3 2 For MFC6550MC 7550MC 7650...

Page 42: ...Sheet feeder cover sensor PC2 circuit 4 Cover switch SW1 5 Connector for the high voltage power supply PCB 6 Connector for the toner sensor PCB 7 Connector for the laser diode of the laser unit 8 Switching circuit which feeds 24V power to the polygon motor during the printing pro cess 9 Connector for the polygon motor 5 2 3 ...

Page 43: ...U S A versions 1 Surge absorber 2 Noise filters 3 Line relay CML relay 4 Line transformer 5 Circuit related to the line transformer 6 High impedance transformer circuit 7 Calling signal detector 8 Loop current detector 9 Dial pulse generator Telephone circuit A Reference voltage generation circuit for the operational amplifier in 1 2 3 4 5 6 7 8 9 2 2 A ...

Page 44: ...ed to the line transformer 6 High impedance transformer circuit 7 Calling signal detector 8 Loop current detector 9 Dial pulse generator loop current detector Telephone circuit A Reference voltage generation circuit for the operational amplifier in B Pulse shaper C Line current detection input circuit 1 2 2 2 2 2 3 4 5 6 7 8 9 A C B 2 2 3 ...

Page 45: ... and tells it to the CPU in the FAX engine ASIC The circuit related to a line transformer allows the line transformer to be invariant by se lecting the constants of the parts in this circuit so as to conform to the communications regulations or codes of each country In addition to the above basic components of the NCU the following components are also required depending upon additional functions o...

Page 46: ...ding to commands 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 FAX Engine Backup Circuit 5V Reset Circuit 5V POWER I O Ports Serial Communications Ports RESET 5B LEDS Panel FPC Key Matrix LCD Main PCB Control Panel PCB SDIN SDOUT PCLK Gat...

Page 47: ...o the logic control panel sensors CCD unit etc the 24V source is fed to the motors solenoid fans LED array and the high voltage power supply PCB The low voltage power supply also feeds AC power to the heater of the fixing unit Low voltage Power Supply Circuit Heater Circuit Thermal Fuse Lightning Surge Absorber Feedback Line Filter Fuse Rectifier Switching Circuit 24V Detector 5V Regulation Circui...

Page 48: ... Control 2 GENZ GENZOU Control 3A TENH TESHAH Control 3B TENL TESHAL GND Fuse Type Resistor 0 22 1 6w Current Regulator 250µA B1 Q1 B51 Q51 B52Q56VR53 VR33 VR31 VR34 Voltage Regulator 600 10V 275 7V Current Regulator 3 0µA Voltage Regulator 1 8kV VR201 Voltage Regulator 1 0kV Z201 910 GRID OUT3 OUT2 OUT1 Developer Roller Laser sensitive Drum Corona Wire 12 9 10 7 6 11 R1 Transfer Roller VR101 Volt...

Page 49: ...CHAPTER IV DISASSEMBLY REASSEMBLY AND LUBRICATION ...

Page 50: ... 8 1 8 Scanner Frame ASSY IV 10 1 9 Insulation Cover IV 12 1 10 Fixing Unit FU Lamp and Paper Ejection Sensor Actuator IV 13 1 11 Laser Unit IV 15 1 12 Bottom Plate IV 16 1 13 Low voltage Power Supply PCB IV 17 1 14 High voltage Power Supply PCB and Fan 1 IV 18 1 15 Main PCB IV 19 1 16 Relay PCB IV 21 1 17 Shield Bracket and NCU PCB ASSY IV 22 1 18 Gear Drive Unit IV 23 1 19 Duct Cover Fan 2 and S...

Page 51: ... 6 When using soldering irons and other heat generating tools take care not to damage the resin parts such as wires PCBs and covers 7 Before handling the PCBs touch a metal portion of the equipment to discharge static electricity otherwise the electronic parts may be damaged due to the electricity charged in your body 8 When transporting PCBs be sure to wrap them in conductive sheets such as alumi...

Page 52: ...unit Taptite bind B 4x12 3 8 1 Toner sensor PCB Taptite cup B 3x8 1 6 1 Bottom plate Taptite cup B 4x12 5 8 1 On the main shield bracket Taptite cup S 3x6 2 5 1 On the gear drive unit Taptite cup S 3x6 2 8 1 Grounding wire Screw pan washer 4x8DB 1 7 2 Low voltage power supply PCB Taptite bind 4x12 1 10 1 High voltage power supply PCB Taptite bind 4x12 1 10 1 Interface plate Taptite bind 3x6 3 5 1 ...

Page 53: ...idge loaded 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 relay PCB for example first find it on the flow and learn its number F in this case You should remove parts numbered 1 3 B and E so as to access the relay PCB Unless otherwise specified the disassembled parts or components should be reas sembled in ...

Page 54: ... Pressure roller ASSY Sheet feeder cover sensor actuator Registration sensor actuator 20 17 NCU PCB ASSY 20 Cover sensor actuator Shield bracket 17 16 Relay PCB Main PCB 15 Duct cover Fan 2 Speaker 19 Fan 1 14 High voltage power supply PCB 13 Bottom plate 12 Multi purpose sheet feeder 3 1 Top cover 11 Laser unit Low voltage power supply PCB 18 Gear drive unit Main motor Gears Solenoids 14 2 2 Hand...

Page 55: ...switch harness Handset equipped versions Hook switch Handset mount 1 2 Handset Mount and Hook Switch PCB for handset equipped versions Side Cover for non handset versions 1 Remove the two screws from the handset mount or the side cover 2 Twist the handset mount or the side cover so that it tilts over to the left and its upper end works out of the bosses provided on the main cover 3 To remove the h...

Page 56: ...e right and left end of the front edge with the bosses of the main cover and then push down the rear Boss Multi purpose sheet feeder 1 4 Control Panel ASSY 1 Slightly open the control panel ASSY as shown below 2 Push the right and left arms of the control panel ASSY outwards with your thumbs to unhook them from the bosses provided on the main cover then slide the control panel ASSY to the rear 3 D...

Page 57: ...t from the 15 pawls X provided on the control panel 5 Unhook the control panel PCB from the three pawls Y on the control panel and take it out together with the FPC key FPC key Control panel placed upside down Reassembling Notes When installing the spring plate B and separation rubber align their cutouts with the boss on the panel rear cover Document pressure bar Spring plate B Separation rubber S...

Page 58: ...on roller ASSY to the right and upwards Document feed roller ASSY Document ejection roller ASSY 1 7 Inner Cover 1 Remove the five screws 2 Unlatch the pawl a by hand 3 While lifting up the inner cover unlatch the four pawls b and c NOTE Take care not to scratch or drop the cover glass on the scanner frame ASSY Inner cover Pinch rollers Control panel lock Leaf spring Viewed from the left side b Spo...

Page 59: ...ting the inner cover on the main cover make sure that The control panel locks leaf springs are set in the inner cover as shown on the previ ous page The pinch rollers are set with their fringes facing outwards as shown on the previous page The main panel harness connector comes out from the cutout provided in the inner cover as shown below ...

Page 60: ...rray Document front sensor actuator Document rear sensor actuator While pressing down the leaf spring and pulling the boss X provided on the scanner frame ASSY to the front slightly move the actuator to the left and lift it up Document sensor PCB Disconnect the CCD harness and LED array harness from the document sensor PCB Take the main sensor harness out of the three clamps see the illustration o...

Page 61: ...ake out the ASSY NOTE Take care not to scratch the mirrors see the illustration below CCD unit or bar lens NOTE NEVER remove or replace the CCD unit Its mounting position has been ad justed in the factory Sponges Scanner frame ASSY Cover glass Remove before taking out the scanner frame ASSY Main sensor harness Clamps Document sensor PCB Sponge CCD unit Do not remove Scanner motor harness Scanner m...

Page 62: ...the scanner frame ASSY re assemble it referring to the illustration below Rear Front Separation roller gear Document take in roller gear Scanner frame ASSY Scanner motor gear Right side view After installing the scanner frame ASSY be sure to put the sponges back into place as shown on the previous page Insulation cover Main cover 1 9 Insulation Cover 1 Lift up the insulation cover ...

Page 63: ...ejection sensor actuator from the main cover 4 To take out the FU lamp from the fixing unit remove the two screws b from the fixing unit 5 Unhook the two latches outwards with the tip of a small flat screwdriver and open the upper cover See the next page 6 Fully open the upper cover and remove it a b b Fixing unit Blue heater harness Eraser lamp board Brown heater harness Paper ejection sensor act...

Page 64: ...ol Setting the FU lamp Folded lock plate Latch c Loosen this Heater roller Insert the right edge of the wire into the folded lock plate Unhooking the latch Latch Lock plate d FU lamp b Lower cover Upper cover b Reassembling Notes When setting the FU lamp into the fixing unit be sure to insert the right edge of the wire into the folded lock plate When installing the paper ejection sensor actuator h...

Page 65: ...ght side of the laser unit is a 2 pin connector which is for the adjustment in the factory Do not disturb it Toner sensor Toner sensor PCB Glass Mirror Laser unit Polygon motor flat cable Laser diode harness Toner sensor harness Sponge Relay PCB Reassembling Notes Before putting the laser unit back into place check for any toner particles paper dust or dirt and clean them out When installing the l...

Page 66: ... cover and multi purpose sheet feeder have been re moved 2 Turn the machine upside down 3 Remove the nine screws 4 Slightly lift up the bottom plate and disconnect the grounding wire Bottom plate Grounding wire Screws Taptite cup S3x6 Screws Taptite cup B4x12 ...

Page 67: ...e power supply PCB Relay PCB Main PCB Main cover placed upside down NCU PCB beneath the main PCB Front 1 Remove the screw from the low voltage power supply PCB 2 Slightly lift up the low voltage power supply PCB and pull out the power switch support 3 Disconnect the main low voltage harness and heater harness of the blue and brown wires from the low voltage power supply PCB Main low voltage harnes...

Page 68: ...an 1 Drum grounding harness Front Relay high voltage flat cable High voltage power supply PCB Eraser harness Fan motor film Fan 1 Main cover placed upside down Fan harness Paper ejection sensor Insulation film Reassembling Notes Before reinstalling the high voltage power supply PCB check the high voltage contacts for any toner particles paper dust or dirt and clean them out When reassembling the a...

Page 69: ...ss 2 pin P8 Fan 2 harness 2 pin P18 Speaker harness 2 pin P16 Hook switch harness 2 pin P11 Main NCU harness 12 pin P6 Main NCU harness 6 pin P6 on the European and Asian versions only Main sensor harness 11 pin P4 P9 P10 P18 P7 P5 P8 P16 P6 P13 P11 P4 Main PCB Rear Main sensor harness Main panel harness Main low voltage harness Main motor harness Scanner motor harness Solenoid harness Speaker har...

Page 70: ...kel hydrogen battery on the main PCB be sure to remove the battery from the PCB when transporting the PCB Fail ure to do so may result in a short circuit overcurrent flow and fire When installing the nickel hydrogen battery on the main PCB bring its edge into contact with the surface of the PCB and attach it to the interface plate 5 mm inwards from the plate edge as shown below For the MFC4550plus...

Page 71: ...in P1 Registration sensor Polygon motor flat cable Sheet feeder cover sensor Cover sensor Relay high voltage flat cable This corner should come directly under the shield bracket Relay PCB Toner sensor harness Toner sensor harness Laser diode harness Shield bracket Reassembling Notes When reinstalling the relay PCB be sure that corner X shown above comes directly un der the shield bracket X Polygon...

Page 72: ...ut the shield bracket Shield bracket Main cover placed upside down NCU PCB ASSY Rear 2 Remove the screw and take out the NCU PCB ASSY For the MFC9500 disconnect the microphone harness from the NCU PCB NCU PCB ASSY Rear Main cover placed upside down Microphone harness MFC9500 only ...

Page 73: ...r Relay PCB Main cover placed upside down Rear Clamp provided on the main cover Main motor harness Drum grounding harness Heater harness blue and brown wires Solenoid harness Gear drive unit Main motor 3 Remove the three screws and take out the gear drive unit Rear Gear drive unit Solenoid harness from the main PCB Drum grounding harness from the high voltage power supply PCB Main cover placed ups...

Page 74: ...mbling Notes If the paper feed solenoid solenoid lever or clutch release lever has been removed as semble the removed parts as shown above Pull in roller drive gear Intermediate gear Clutch gear Solenoid spring Paper feed solenoid Planetary gear system Gear 20 94 Clutch release lever Solenoid lever Gear drive unit Solenoid lever Clutch release lever Solenoid spring Clutch spring Main motor Motor b...

Page 75: ...lift up the speaker Fan 2 Front Latch Contrast adjuster Duct cover Latches Speaker Latch Main cover placed upside down Reassembling Notes After reinstalling the duct cover make sure that the harnesses are routed as illustrated in Section 1 23 When setting the fan 2 be careful with the installation direction The name plate should face outwards ...

Page 76: ...Sensor Actuator 1 Pull up the sheet feeder cover sensor actuator 2 Pull up the registration sensor actuator 3 Unhook the spring and take out the cover sensor actuator Cover sensor actuator Rear Main cover placed upside down Sheet feeder cover sensor actuator Registration sensor actuator ...

Page 77: ...m the NCU PCB and remove the NCU PCB ASSY Refer to Section 1 17 2 Turn the equipment rightside up 3 Lift up the microphone from the main cover Main cover placed rightside up Boss Microphone Front Reassembling Notes Put the microphone back into place with either boss facing up ...

Page 78: ...acts clean them out This will ensure that power flows correctly to enable printing 1 2 7 For developer roller 6 For corona wire 5 For grid 4 For cleaner roller 3 For transfer roller Grounding Contacts High voltage Contacts Drum grounding board Gear drive unit 2 1 2 1 3 4 5 7 6 3 4 5 6 7 High voltage power supply PCB Drum unit ...

Page 79: ...arness Speaker harness Solenoid harness Hook switch harness Heater harness Main motor harness Main low voltage harness Low voltage power supply PCB NCU PCB Main PCB Main NCU harness High voltage power supply PCB Eraser harness Laser diode harness Toner sensor harness Polygon motor flat cable Front Scanner motor harness Microphone harness MFC9500 only ...

Page 80: ...12 mm3 For points B apply a rice sized pinch of grease 6 mm3 1 Inner cover B B Control panel lock leaf spring Front Inner cover Document ejection roller ASSY Document take in roller ASSY Separation roller ASSY Scanner frame Front A A B B A A B B A B B A A A A A A B B A A A B B B A A A A A A 2 Scanner frame ASSY Document feed roller ASSY ...

Page 81: ...CHAPTER V MAINTENANCE MODE ...

Page 82: ... Compensation Data Initialization V 5 3 3 Printout of Scanning Compensation Data V 6 3 4 ADF Performance Test V 8 3 5 Test Pattern 1 V 9 3 6 Firmware Switch Setting and Printout V 10 3 7 Operational Check of Control Panel PCB V 47 3 8 Sensor Operational Check V 48 3 9 CCD Scanner Area Setting V 49 3 10 Equipment Error Code Indication V 49 3 11 Output of Transmission Log to the Telephone Line V 50 ...

Page 83: ...y from the keys To select one of the maintenance mode functions listed in Section 2 enter the corresponding 2 digit function code with the numerical keys on the control panel The details of each main tenance mode function are described in Section 3 NOTES Pressing the 9 key twice in the initial maintenance mode restores the equip ment to the standby state Pressing the Stop button after entering onl...

Page 84: ... 04 05 06 07 08 09 10 11 12 13 3 1 V 4 3 2 V 5 Printout of Scanning Compensation Data 3 3 V 6 3 4 V 8 3 5 V 9 3 6 V 10 3 6 V 46 3 7 V 47 14 15 Operational Check of Control Panel PCB Check of Keys and Buttons Sensor Operational Check CCD Scanner Area Setting Equipment Error Code Indication Output of Transmission Log to the Line E2PROM Parameter Initialization except the tele phone number storage ar...

Page 85: ...this order The LCD clears the current display NOTE The Mode key is inoperable during standby for redialing timer paging and forwarding 2 Press the 0 key 3 Enter the desired function code 10 11 82 or 91 with the numerical keys For function code 10 access the desired firmware switch according to the operating procedure described in Subsection 3 6 4 To make the equipment return to the standby state p...

Page 86: ...s Firmware switches Remote activation code Activity report Distinctive ringing patterns registered only for the U S A versions Station ID data Cover page comments Outside line number Telephone function registration One touch dialing Speed dialing Group dialing 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 P...

Page 87: ...ividual CCD properties in the scanning operation Operating Procedure 1 Press the 0 and 2 keys in this order in the initial maintenance mode The WHITE LEVEL INIT will appear on the LCD 2 Upon completion of compensation data initialization the equipment returns to the initial maintenance mode NOTE If any error occurs in the E2 PROM white level data the SCANNER ERROR or CLEAN UP SCANNER will appear o...

Page 88: ...550plus 200 dpi a 2 value quantization white level data 208 bytes b 2 value quantization black level data 1 byte c Photo mode white level data 208 bytes d Photo mode black level data 1 byte e LED light intensity value 2 value quantization LED light intensity value and photo mode LED light intensity value 3 bytes f 2 value quantization A D high and photo mode A D high values 2 bytes MFC6550MC 7550M...

Page 89: ...V 7 Scanning Compensation Data List 200 dpi ...

Page 90: ...d displays P 01 on the LCD ii feeds in and out the 2nd through 4th documents while counting without copying them as the LCD shows the corresponding count iii copies 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 ...

Page 91: ...pying 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 maintenance mode The figure below shows test pattern 1 Test Pattern 1 ...

Page 92: ...nications setting 1 V 34 WSW23 Communications setting 2 V 35 WSW24 TAD setting 2 V 36 WSW25 TAD setting 3 V 37 WSW26 Function setting 4 V 38 WSW27 Function setting 5 V 39 WSW28 Function setting 6 V 40 WSW29 Function setting 7 V 41 WSW30 Function setting 8 V 42 WSW31 Function setting 9 V 43 WSW32 Function setting 10 V 43 WSW33 Function setting 11 V 44 WSW34 Function setting 12 V 45 3 6 Firmware Swi...

Page 93: ...r 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 key 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 Stop...

Page 94: ...N 1 1 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...

Page 95: ... 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 in tone dialing 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 2 3 4 5 Min pause set by selectors 3 and 4 Tone signal tr...

Page 96: ...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 effective 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 97: ...quency in ICM recording Not used 4 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 NOTE Selectors 1 and 5 through 8 are not applicable in those countries where no transfer facility is supported Selectors 2 and 3 are applicable to those models equipped with a built ...

Page 98: ...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 1st...

Page 99: ... 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 100: ...tone detection Selectors 1 2 3 1 1 0 1 1 1 Each time the PAUSE key is pressed the equipment detects a 2nd dial tone If no 2nd dial tone is inputted within the specified time the equipment disconnects the line in automatic dialing or it starts transmitting the dial signal if given after depression of the PAUSE key in hook up dialing In those countries where no dial tone detection function is suppor...

Page 101: ...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 2nd 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 s...

Page 102: ...5 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 which should not...

Page 103: ...tection level of 1st dial tone and busy tone before dialing Z 600 Ω NOTE WSW08 is not applicable in those countries where no dial tone detection is supported e g U S A 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...

Page 104: ... 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 re...

Page 105: ...n is provided to conform to the Swedish standard Selector 2 Time length from transmission of the last dial digit to CML ON This 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 S...

Page 106: ...those countries where no busy tone detection is supported 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 busy t...

Page 107: ...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 108: ...cteristics of analogue 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 transmitt...

Page 109: ... 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 calling signals for activating the AUTO ...

Page 110: ...minute 1 0 2 minutes 1 1 3 minutes 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 3 6 No of redialings ...

Page 111: ...ephone only Setting it to 1 allows the equipment to receive data from all telephones sharing a modular wall socket with the equipment as well as from the directly connected external telephone If any of the following problems occurs frequently set this selector to 0 Dialing from any of the telephones sharing a modular wall socket starts the facsimile equipment Picking up the handset for any telepho...

Page 112: ...not the equipment outputs a power failure report when the power comes back on Selector 4 Calender clock prompt alternate display 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 U S A the MM DD Y...

Page 113: ...at the calling and called stations 7 8 Tone sound monitoring 4 5 Not used Selectors 2 and 3 Detection enabled time for CNG and no tone After the line is connected via the external telephone the equipment can detect a CNG sig nal or no tone for the time length specified by these selectors Selector 6 Registration of station ID Setting this selector to 0 permits the registration of a station ID for A...

Page 114: ...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 MODEM always falls back to ...

Page 115: ... to 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 malfunction...

Page 116: ...tal length of the maximum waiting time specified by 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 Erasure of message For those models equipped with a built in TAD Setting this s...

Page 117: ...he head of a series of zeros is 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 of zeros gathered in training as described in Selector 1 according to the allowable t...

Page 118: ...CM OGM to the line Selectable from the range of 0 15 dB 5 8 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 and 2 Maximum OGM recording time For those models equipped with a built in 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 length of time...

Page 119: ...ing number and PIN For those models equipped with a built in TAD These selectors set the pause time between a telephone number being paged and PIN pri vate 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...

Page 120: ...mode 1 3 Not used 8 Not used Selectors 4 and 5 No of CNG cycles to be detected The equipment interprets a CNG as an effective signal if it detects a CNG signal by the num ber of cycles specified by these selectors when the line is connected via the external tele phone except in the external TAD mode Selectors 6 and 7 No of CNG cycles to be detected For those models not equipped with a built in TAD...

Page 121: ...able key Selector 2 Ringer OFF setting This selector determines whether or not the ringer can be set to OFF Selector 3 Automatic playback of OGM at the start time of OGM ON mode For those models equipped with a built in TAD This selector determines whether or not the equipment automatically plays back an OGM the moment it switches to the OGM ON mode in the MC mode Selector 4 Detection of distincti...

Page 122: ... the equipment for the Standard Never access them Selector 7 Resolution definition This selector determines whether the equipment issues a standard or non standard fine su perfine resolution statement when the empty space of the memory shared by the receive buffer and recording buffer becomes insufficient to receive data at high resolution If this selector is set to 0 the equipment issues a standa...

Page 123: ...p at the time of full activity report data Selector 8 Beep at the time of full activity report data for the European versions only If this selector is set to 1 the equipment will beep when the activity report becomes full as well as displaying a message on the LCD prompting the output of the activity report ...

Page 124: ... Not used 8 0 Higher 1 Lower Speaker Volume Switch Position Selector 5 of WSW30 HIGH Medium High High LOW Medium Low Low Selectors 1 through 3 Detection level of dial tone or busy tone for built in TAD operation For those models equipped with a built in TAD If dial tone or busy tone inputted during ICM recording is below the level specified by these selectors the TAD stops recording and disconnect...

Page 125: ...hort 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 WSW32 Functi...

Page 126: ... NO First communications speed choice for PCI Function Selector No Setting and Specifications 7 8 Not used NOTE The WSW33 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 interf...

Page 127: ... the line because no voice signal has been received 4 5 Not used Not used 8 6 7 No 6 7 0 0 3 0 1 2 1 0 1 1 1 OFF Number of DTMF tone signals for inhibiting the detection of CNG during external TAD operation Selectors 6 and 7 Number of DTMF tone signals for inhibiting the detection of CNG during external TAD operation If the equipment receives this specified number of DTMF tone signals during exter...

Page 128: ...y the firmware switches Operating Procedure 1 Press the 1 key twice in the initial maintenance mode The PRINTING 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 129: ...he equipment beeps for 1 second 4 To terminate this operation press the Stop key The equipment returns to the initial maintenance mode Key Button Entry Order 1 Line On Off FF Cont Print Priority Test Copy Photo Reset 01 02 03 13 14 15 07 08 09 19 20 21 10 11 12 22 23 24 04 05 06 16 17 18 Reduce Enlarge Function Clear Tel index Set Help Super Q Scan Resolution Mode Coverpage Stop Start Shift Hook H...

Page 130: ...operate normally The LED shows the FRRETCCVRGHATNHK when the document front sensor detects no paper FR the document rear sensor detects no paper RE the sheet feeder cover is closed TC the top cover is closed CV the registration sensor detects no paper RG the paper ejection sensor detects no paper HA the toner sensor detects toner TN and the hook switch sensor detects the on hook state HK Operating...

Page 131: ...ent returns to the initial maintenance mode If any error is noted the SCANNER ERROR will appear on the LCD To return the equipment to the initial maintenance mode press the Stop key 3 10 Equipment Error Code Indication Function This function displays the error code for 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...

Page 132: ...ng Procedure 1 If the user s equipment has a transmission related problem call the user s equipment at a remote location from your equipment 2 If the telephone line is connected have the user perform the following 1 Press the Function key and the Mode key in this order 2 Press the 0 8 and 7 keys The above operation makes the user s equipment send CNG to your equipment for sending the transmission ...

Page 133: ...CHAPTER VI ERROR INDICATION AND TROUBLESHOOTING ...

Page 134: ...ge VI 3 1 2 Communications Errors VI 5 2 TROUBLESHOOTING VI 12 2 1 Introduction VI 12 2 2 Precautions VI 12 2 3 Checking prior to Troubleshooting VI 12 2 4 Troubleshooting Procedures VI 13 1 Control panel related VI 13 2 Telephone related VI 13 3 Communications related VI 14 4 Paper document feeding related VI 14 5 Print image related VI 15 ...

Page 135: ...ion 3 11 1 Error messages on the LCD Messages on the LCD Probable Cause CHECK PAPER Even after paper pulling in operation the registration sensor does not detect paper COVER OPEN The cover sensor detects that the top cover is not closed or the sheet feeder cover sensor detects that the sheet feeder cover is not closed PRINTER JAM 1 The paper ejection sensor stays OFF even after the registration se...

Page 136: ... white level data is faulty SCANNER ERROR In the scanning compensation data list printed by the mainte nance mode function No 05 fifty percent or more of the white level data is faulty CHANGE TONER TONER EMPTY The toner sensor has detected that there is no toner If this message appears recording is no longer possible CHANGE TONER The toner sensor has detected that there is not enough toner SET CAR...

Page 137: ...ster shortcircuit 78 Heater thermister harness disconnected or broken 79 Toner thermister disconnected or broken 80 Paper size setting error A5 Faulty operation of DMA0 during scanning A6 Faulty operation of DMA1 during 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 fa...

Page 138: ... interrupt for 60 seconds E1 Microprocessor MPU error on the control panel PCB E4 Out of recording paper E5 Recording paper set error E6 Write error in E2PROM E8 Data scanning error during transmission EA Document removed at phase B F3 Voice message recording or playing back not started F4 Peripheral CNG detection adjustment error F5 EOL not found in page memory transmission mode FF Interface erro...

Page 139: ...s error occurs the facsimile 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 ...

Page 140: ...calling 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 received 20 0...

Page 141: ...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 142: ...cident 40 11 Unregistered group code entered for relay broadcasting function or the specified number of broadcasting subscrib ers exceeding the limit 40 12 Retrieval attempted 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 D...

Page 143: ... Entered 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 144: ...nds A0 18 Receive buffer full on memory reception A8 01 RTN PIN or ERR received at the calling terminal A9 01 RTN PIN or ERR received at the called terminal Available in Germany and Austria only Code 1 Code 2 Causes 9 Signal isolation 90 01 Unable to detect video signals and commands within 6 seconds after CFR is transmitted 90 02 Received PPS containing invalid page count or block count Code 1 Co...

Page 145: ...t 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 Subsection 1 1 2 ...

Page 146: ...cord from 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 A...

Page 147: ... call can be made FPC key Control panel PCB NCU PCB Main PCB 2 Speed dialing or one touch dialing will not work Ordinary dialing function other than the speed and one touch dialing If it works normally check the main PCB if not refer to item 1 above 3 Speaker silent during on hook dialing Ordinary dialing function other than the on hook dialing with the hook key If it works normally proceed to the...

Page 148: ...s by using the maintenance mode function No 32 Refer to Chapter V Section 3 8 Actuators of the document front and rear sensors Main PCB 2 Document not fed ADF and its related sections Scanner motor and its harness Document feed rollers and their related gears Main PCB 3 Document double feeding ADF parts Nip related parts Multi purpose sheet feeder Drum unit Heat fixing unit Gear drive unit Main PC...

Page 149: ... the developer roller on the drum unit main cover and high voltage power supply PCB Contacts 7 in the illustration given on page VI 20 Check the connection of the laser diode harness on the relay PCB Replace the main PCB 2 All black At the scanner Check the following components CCD harness LED array harness Main sensor harness between the main PCB and the document sensor PCB Scanner unit Main PCB ...

Page 150: ...unit main cover and high voltage power supply PCB Contacts 7 in the illustration given on page VI 20 Clean the grounding contacts on the drum unit gear drive unit and main cover Contacts 1 and 2 in the illustra tion given on page VI 20 Check the connection of the relay high voltage flat cable Check the connection between the relay PCB and the main PCB Replace the drum unit Replace the high voltage...

Page 151: ... Black and blurred horizontal stripes At the printer side If the horizontal stripes appear at 94 mm or 17 mm intervals replace the drum unit If they appear at 54 mm intervals replace the heat fixing unit 7 White vertical streaks At the scanner Check the following components Scanner unit Mirrors on the scanner unit for stains At the printer side Clean the cover glass of the laser unit with a dry so...

Page 152: ...t 10 Image distortion or improper image alignment In communications Check the following components Error code displayed Refer to Section 1 ERROR INDICATION in this chapter NCU PCB Main PCB At the scanner Check the following components Separator roller and its related sections Document feed rollers and their related gears Scanner motor and its harness Main PCB At the printer side Check that the las...

Page 153: ... i n t o P r i n t o u t t e s t p r i n t o u t t e s t p r i n t o u t t e s t P r i n t o u t t e s t p r i n t o P r i n t o u t t e s t p r i n t o u t t e s t p r i n t o u t t e s t P r i n t o u t t e s t p r i n t o P r i n t o u t t e s t p r i n t o P r i n t o u t t e s t p r i n t o u t t e s t p r i n t o u t t e s t P r i n t o u t t e s t p r i n t o P r i n t o u t t e s t p r i n...

Page 154: ... Contacts 2 1 Gear drive unit Drum grounding board 2 1 3 4 5 7 6 3 4 5 6 7 High voltage power supply PCB High voltage Contacts 6 For corona wire 5 For grid 4 For cleaner roller 7 For developer roller 3 For transfer roller Grounding Contacts 1 2 Drum unit ...

Page 155: ...MFC4450 4550 4550plus 6550MC 7550MC 7650MC MFC9000 9500 APPENDICES Circuit Diagrams A Main PCB B Relay PCB C Network Control Unit NCU PCB D Control Panel PCB E Power Supply PCB Low voltage power supply High voltage power supply ...

Page 156: ...L 1 5 9 6 2 I P D 3 H O O K 5 6 3 5 B 5 8 5 4 5 3 5 2 5 1 5 0 4 9 4 7 3 6 C I P D 0 P D R 2 4 1 5 K 1 3 2 S A 1 2 2 3 D S M P C 5 5 B 3 6 C M P R B 5 5 B 3 5 C M P R A S D O U T 4 6 3 3 D P C L K 4 4 3 3 D M R S T 4 1 4 7 A P C L K 3 3 D S D I N 4 5 3 7 5 4 C S O L 3 2 5 3 B P M 4 3 1 5 3 B P M 3 3 0 5 3 B P M 2 2 9 5 3 B P M 1 1 0 8 5 3 A H T O 1 0 1 5 1 A S C C K 1 0 2 5 1 A D R I V 9 8 5 1 A S ...

Page 157: ... C 1 0 5 1 0 4 5 B S 0 V D 1 D 2 D 3 D 4 D 5 D 6 D 7 D 8 D 9 D 1 0 D 1 1 D 1 2 D 1 3 D 1 4 D 1 5 2 D 0 3 D 1 4 D 2 5 D 3 7 D 4 8 D 5 9 D 6 1 0 D 7 3 1 D 8 3 2 D 9 3 3 D 1 0 3 4 D 1 1 3 6 D 1 2 3 7 D 1 3 3 8 D 1 4 A 0 A 1 A 2 D B U S 2 6 1 6 1 7 1 8 1 9 2 2 2 3 2 4 2 5 D R A M 4 0 6 1 3 5 2 1 2 0 G G G V C C V C C D 1 5 D 1 6 3 9 A 3 A 4 A 5 A 6 A 7 A 8 R 1 1 B 2 3 1 1 B 1 3 1 1 B 2 7 N C 3 0 R A S...

Page 158: ...1 0 1 3 B 1 2 B 1 3 B A 9 R 5 6 0 R 5 5 C S I P 1 3 B R D 1 2 B S M P C 1 3 A S 0 V 5 V R 6 3 S A 1 2 3 3 B 1 6 V R 0 V R 6 0 1 0 0 R 6 1 1 0 0 R 5 7 3 0 0 R 5 V V I D R 7 4 0 5 V R 5 V R 0 V C 7 9 1 0 4 1 6 V C 4 1 0 C 3 C 7 8 R 0 V A P 0 3 5 B S E N S P 4 2 4 V L 4 B L M 1 1 A 2 0 3 3 2 1 2 4 R E T 1 L E D 1 4 C Q 1 7 D T D 1 1 3 Z K R 7 5 1 0 0 1 3 B R 7 9 L L 1 2 1 1 3 B R 7 6 1 3 B R 7 8 2 2 ...

Page 159: ... A 1 D G N D A 2 D G N D A 3 E Y E S Y N C E Y E C L K 8 5 E Y E X Y 8 9 X T L I X T L O M 0 V S 0 V R 1 2 3 2 2 K A 1 A 5 R D L W R M C E N C N C A 4 A 3 A 2 T R E S E T 2 0 2 4 R X O U T 1 9 S R 4 O U T 1 7 7 9 3 6 P O R 4 6 S L E E P O H T A L K R I N T X A 1 T X A 2 S P K R 2 6 3 8 2 8 2 9 4 4 V R E F V C G P I 0 4 0 3 9 9 5 9 8 5 4 5 7 7 0 6 9 6 5 6 4 6 3 6 2 9 4 G P I 1 G P I 2 G P I 3 G P I...

Page 160: ... 3 1 7 2 3 6 5 C 1 2 7 C C 1 0 3 C 1 1 8 C C 1 0 3 R 1 4 2 1 0 0 R 1 4 9 1 0 0 R 4 0 4 7 R 3 0 4 7 1 2 W 1 2 W 4 A K 2 9 1 7 2 4 R E T 2 4 V B 6 B P H P 1 0 1 5 B 1 5 B 1 5 B 2 4 6 8 2 4 R E T 1 5 B 3 M T I 1 2 2 4 R E T 1 4 A S O L 1 2 2 4 V 1 P 8 B 2 B P H 2 3 2 4 R E T D T D G 2 3 Y P Q 2 0 1 5 C V R C O N 1 2 2 4 V 1 P 1 8 B 2 B P H 2 3 2 4 R E T D T D G 2 3 Y P Q 2 4 2 4 R E T 1 2 P 1 1 B 2 B...

Page 161: ...V 5 V P 1 5 R A 9 1 0 0 x 4 1 0 0 x 4 R A 7 1 0 0 x 4 R A 5 C 5 3 C 5 2 C 5 1 C 5 0 C 4 9 C 4 8 C 4 7 C 4 6 C C 4 7 1 C 4 2 C 4 4 C 4 3 C 4 5 C 4 1 C 4 0 C 3 9 C 3 8 S 0 V 1 2 1 6 A Q 6 S O V C 1 8 C C 1 0 4 R 1 5 1 K R S R 1 1 3 3 K Q 5 2 S A 1 3 6 4 Q 4 5 V D 2 1 S S 1 3 3 R 1 4 0 S 0 V C 1 4 2 C C 1 0 4 S 0 V P 1 4 B 2 B P H S 0 V D 1 1 S S 1 3 3 2 4 V R 9 1 0 K R 1 0 4 3 K D T C 1 2 4 E K 2 S ...

Page 162: ...0 1 2 C 0 1 1 5 1 0 M S L 1 2 C 1 0 C N T 4 9 T A D H 5 3 4 1 3 2 7 8 6 5 V A i A i B i B i G N D A O B O N J M 2 0 7 3 8 K I 3 2 4 R 9 1 5 6 K C 9 0 R 9 2 1 0 K 9 1 0 8 1 1 B 7 1 B C 9 3 C C 8 2 2 D 1 1 1 S S 1 3 3 C 9 2 6 8 1 R 9 3 6 8 K R 9 4 1 0 0 K 1 3 1 4 1 2 8 K I 3 2 4 C 9 1 C C 1 0 4 R 1 8 9 1 0 K 2 4 V T L S L R L 1 S 0 V 7 3 B 7 3 C 7 3 C 9 5 6 7 1 1 1 R 9 5 1 5 K R 9 6 4 7 K M 0 V R 1 ...

Page 163: ...MAIN 8 8 FAX3550 3650 8000P 8200P MFC4550 6550MC 7550MC MFC9000 9500 A ...

Page 164: ...5 3 4 C 4 4 B T G L E D 6 3 6 4 3 2 A C L 2 C L 1 5 9 6 2 I P D 3 H O O K 5 6 3 5 B 5 8 5 4 5 3 5 2 5 1 5 0 4 9 4 7 3 6 C I P D 0 P D R 2 4 1 5 K 1 3 2 S A 1 2 2 3 D S M P C 5 5 B 3 6 C M P R B 5 5 B 3 5 C M P R A S D O U T 4 6 3 3 D P C L K 4 4 3 3 D M R S T 4 1 4 5 B P C L K 3 3 D S D I N 4 5 3 7 5 4 C S O L 3 2 5 3 B P M 4 3 1 5 3 B P M 3 3 0 5 3 B P M 2 2 9 5 3 B P M 1 1 0 8 5 3 A H T O 1 0 1 ...

Page 165: ... 1 0 R A S 1 R M WR R A M R D U C A S 1 1 B 3 1 1 1 B 1 5 1 6 N C C 1 0 7 C C 1 0 4 5 V S 0 V D 0 1 D 0 2 D 0 3 D 0 4 D 0 5 D 0 6 D 0 7 D 0 8 D 0 9 D 0 1 0 D 0 1 1 D 0 1 2 D 0 1 3 D 0 1 4 D 0 1 5 2 D 0 3 D 1 4 D 2 5 D 3 7 D 4 8 D 5 9 D 6 1 0 D 7 3 3 D 8 3 4 D 9 3 5 D 1 0 3 6 D 1 1 3 8 D 1 2 3 9 D 1 3 4 0 D 1 4 A 0 A 1 A 2 D B U S 2 8 1 8 1 9 2 0 2 3 2 4 2 5 2 6 2 7 D R A M 3 7 1 2 1 2 2 4 2 6 G G ...

Page 166: ...S 1 1 C C L K 2 4 L WR T G A P 0 A 1 0 1 3 B 1 2 B 1 3 B A 9 R 5 6 R 5 5 0 C S I P 1 3 B R D 1 2 B S M P C 1 3 A S 0 V 5 V R 6 3 S A 1 2 3 3 B 1 6 V R 0 V R 6 0 1 0 0 R 6 1 1 0 0 R 5 7 3 0 0 R 5 V V I D R 7 4 0 5 V R 5 V R 0 V C 7 9 1 0 4 1 6 V C 4 1 0 C 3 C 7 8 R 0 V A P 0 3 5 B S E N S P 4 2 4 V L 4 B L M 1 1 A 2 0 3 3 2 1 2 4 R E T 1 L E D 1 4 C Q 1 7 D T D 1 1 3 Z K R 7 5 2 0 0 1 3 B R 7 9 1 3...

Page 167: ...I N P R I N G 7 4 C D 9 M Z 5 1 B S 0 V 4 7 D 1 D 2 D 0 D 1 D 2 4 5 4 4 4 3 4 2 D 4 D 5 D 6 D 7 D 4 D 5 D 6 D 7 R D L WR M R S T M C E 1 3 A 1 3 B 1 3 B 1 3 A D B U S 1 2 B D 3 D 3 4 6 A B U S 1 1 C 2 2 5 5 1 0 1 8 2 4 3 1 4 0 4 8 5 7 6 4 6 9 7 4 D V D D A 0 3 9 A 1 3 8 A 2 3 7 3 6 A 3 5 1 5 0 D 0 A 1 A 2 A 3 A 4 3 M I N T 1 1 B 2 4 C L K 2 2 R S T 2 3 C E 3 5 R D 3 4 WR 3 3 M P S E L 2 9 I N T 2 ...

Page 168: ... 3 R 1 4 2 1 0 0 R 1 4 9 1 0 0 R 4 0 4 7 R 3 0 4 7 1 2 W 1 2 W 4 A K 2 9 1 7 2 4 R E T 2 4 V B 6 B P H P 1 0 1 5 B 1 5 B 1 5 B 2 4 6 8 2 4 R E T 1 5 B 3 M T I 1 2 2 4 R E T 1 4 A S O L 1 2 2 4 V 1 P 8 B 2 B P H 2 3 2 4 R E T D T D G 2 3 Y P Q 2 0 1 5 C V R C O N 1 2 2 4 V 1 P 1 8 B 2 B P H 2 3 2 4 R E T D T D G 2 3 Y P Q 2 4 2 4 R E T 1 2 P 1 1 S 0 V C 1 2 5 R 1 3 2 R 1 2 8 2 2 K 5 V H O O K 6 2 5...

Page 169: ... 1 6 1 4 C D C B U S 2 1 6 1 7 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 5 7 L E 4 0 3 6 0 1 8 2 2 K x 4 2 2 K x 4 R 7 1 5 0 R 6 1 5 0 R 8 1 5 0 R A 4 1 0 K x 4 R A 6 R A 8 S 0 V 5 V P 1 5 R A 9 1 0 0 x 4 1 0 0 x 4 R A 7 1 0 0 x 4 R A 5 C 5 3 C 5 2 C 5 1 C 5 0 C 4 9 C 4 8 C 4 7 C 4 6 C C 4 7 1 C 4 2 C 4 4 C 4 3 C 4 5 C 4 1 C 4 0 C 3 9 C 3 8 S 0 V 1 2 1 6 A S 0 V C 1 4 2 C C 1 0 4 R 2 0 5 4 7...

Page 170: ... 1 5 6 K C 9 0 R 9 2 1 0 K 9 1 0 8 1 2 A 7 2 A C 9 3 C C 8 2 2 D 1 1 1 S S 1 3 3 C 9 2 6 8 1 R 9 3 0 R 9 4 1 0 0 K 2 1 3 8 K I 3 2 4 C 9 1 C C 1 0 4 R 1 8 9 1 0 K 2 4 V T L S L R L 1 S 0 V 7 4 B 7 3 C 9 5 6 7 1 1 1 R 9 5 1 5 K R 2 2 1 M 0 V R 1 0 0 0 R 1 0 1 0 2 3 1 D G S A R E F C 1 0 1 R 1 0 3 1 1 A 9 8 C 9 4 C C 1 2 1 C C 1 0 3 B S 0 V R 8 0 2 2 K R 8 1 1 K 5 V R 8 7 1 K P L S 1 1 B Q 2 7 D T C...

Page 171: ... 5 8 5 4 5 3 5 2 5 1 5 0 4 9 4 7 3 6 C I P D 0 P D R 2 4 1 5 K 1 3 2 T L S W 7 1 B S M P C 5 5 B 3 6 C M P R B 5 5 B 3 5 C M P R A S D O U T 4 6 3 3 D P C L K 4 4 3 3 D M R S T 4 1 4 7 A P C L K 3 3 D S D I N 4 5 3 7 5 4 C S O L 3 2 5 3 B P M 4 3 1 5 3 B P M 3 3 0 5 3 B P M 2 2 9 5 3 B P M 1 1 0 8 5 3 A H T O N 1 0 1 5 1 A S C C K 1 0 2 5 1 A D R I V 9 8 5 1 A S C D T 9 9 5 1 A L D O N 1 0 3 5 1 B...

Page 172: ... 2 X S E N 1 R S 1 6 E X I N T 2 7 R E S I A 9 D 7 2 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D B U S A 5 1 2 2 0 1 0 2 8 1 4 1 5 2 9 3 0 A 1 A 2 A 3 A 4 A B U S 2 4 9 8 2 3 7 C 6 0 1 0 4 C 5 1 0 1 6 V 1 1 2 5 2 6 3 4 1 8 1 9 P 2 D H B P B 4 0 1 5 1 6 R 1 1 1 R 1 1 0 R 1 0 9 R A S 1 R A S 2 R A S 3 1 1 B 1 1 B 1 7 R M WR 1 8 R A M R D 1 9 U C A S 2 0 C A S D 1 5 4 0 2 5 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 D 0 D ...

Page 173: ...K 2 4 L WR T G A P 0 A 1 0 1 3 B 1 2 B 1 3 B A 9 R 5 6 0 R 5 5 C S I P 1 3 B R D 1 2 B S M P C 1 3 A S 0 V 5 V R 6 3 S A 1 2 3 3 B 1 6 V R 0 V R 6 0 1 0 0 R 6 1 1 0 0 R 5 7 3 0 0 R 5 V V I D R 7 4 0 5 V R 5 V R 0 V C 7 9 1 0 4 1 6 V C 4 1 0 C 3 C 7 8 R 0 V A P 0 3 5 B S E N S P 4 2 4 V L 4 B L M 1 1 A 2 0 3 3 2 1 2 4 R E T 1 L E D 1 4 C Q 1 7 D T D 1 1 3 Z K R 7 5 2 0 0 1 3 B R 7 9 L L 1 2 1 1 3 B...

Page 174: ... 5 D G N D A 1 D G N D A 2 D G N D A 3 E Y E S Y N C E Y E C L K 8 5 E Y E X Y 8 9 X T L I X T L O M 0 V S 0 V R 1 2 3 2 2 K A 1 A 5 R D L WR M C E N C N C A 4 A 3 A 2 T R E S E T 2 0 2 4 R X O U T 1 9 S R 4 O U T 1 7 7 9 3 6 P O R 4 6 S L E E P O H T A L K R I N T X A 1 T X A 2 S P K R 2 6 3 8 2 8 2 9 4 4 V R E F V C G P I 0 4 0 3 9 9 5 9 8 5 4 5 7 7 0 6 9 6 5 6 4 6 3 6 2 9 4 G P I 1 G P I 2 G P ...

Page 175: ... 7 C C 1 0 3 C 1 1 8 C C 1 0 3 R 1 4 2 1 0 0 R 1 4 9 1 0 0 R 4 0 4 7 R 3 0 4 7 1 2 W 1 2 W 4 A K 2 9 1 7 2 4 R E T 2 4 V B 6 B P H P 1 0 1 5 B 1 5 B 1 5 B 2 4 6 8 2 4 R E T 1 5 B 3 M T I 1 2 2 4 R E T 1 4 A S O L 1 2 2 4 V 1 P 8 B 2 B P H 2 3 2 4 R E T D T D G 2 3 Y P Q 2 0 1 5 C V R C O N 1 2 2 4 V 1 P 1 8 F A N 2 B 2 B P H 2 3 2 4 R E T D T D G 2 3 Y P Q 2 4 2 4 R E T 1 2 P 1 1 B 2 B P H S 0 V C...

Page 176: ...4 R 7 1 5 0 R 6 1 5 0 R 8 1 5 0 R A 4 1 0 K x 4 R A 6 R A 8 5 V 5 V P 1 5 R A 9 1 0 0 x 4 1 0 0 x 4 R A 7 1 0 0 x 4 R A 5 C 5 3 C 5 2 C 5 1 C 5 0 C 4 9 C 4 8 C 4 7 C 4 6 C C 4 7 1 C 4 2 C 4 4 C C 1 5 1 C 4 3 C 4 5 C 4 1 C 4 0 C 3 9 C 3 8 S 0 V 1 6 A Q 6 S O V C 1 8 C C 1 0 4 R 1 5 1 K R S R 1 1 3 3 K Q 5 2 S A 1 3 6 4 Q 4 5 V D 2 1 S S 1 3 3 R 1 4 0 S 0 V C 1 4 2 C C 1 0 4 S 0 V P 1 4 B 2 B P H S ...

Page 177: ... 0 C N T 4 9 T A D H 5 3 4 1 3 2 7 8 6 5 V A i A i B i B i G N D A O B O N J M 2 0 7 3 8 K I 3 2 4 R 9 1 5 6 K C 9 0 R 9 2 1 0 K 9 1 0 8 1 1 B 7 1 B C 9 3 C C 8 2 2 C 9 2 6 8 1 R 9 3 6 8 K R 9 4 1 0 0 K 1 3 1 4 1 2 8 K I 3 2 4 C 9 1 C C 1 0 4 R 1 8 9 1 0 K 2 4 V T L S L R L 1 S 0 V 7 3 B 7 3 C 7 3 C 9 5 6 7 1 1 1 R 9 5 1 5 K R 9 6 4 7 K M 0 V R 1 0 0 0 R 1 0 1 2 K D G S A R E F C 1 0 1 C C 1 0 4 1...

Page 178: ... 3 5 6 A B C D 6 4 4 5 S Y M B O L NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED 42 PIN IC SOCKET NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED NOT MOUNTED ...

Page 179: ... B 9 B 1 0 A 1 0 B 5 A 5 B 4 A C O V E R T E N S H A L L G E N Z O L T A I D E N L F A N L H A I S I H E T H 2 4 V 2 4 V R E T 2 4 V R E T L O C K S C C K L R 3 1 5 0 k 1 4 W 2 4 V 9 A C 3 C C 1 0 4 4 T N E R T N E R C 4 C C 1 0 2 L 1 N C F G S 0 V 2 4 V R E T G N D P C 1 O N 1 0 2 4 A K E C 5 V G N D P C 2 O N 1 0 2 4 A K E C 5 V D T C 1 1 4 Y S A G N D D T C 1 1 4 Y S A G N D G N D 2 4 V T R 2 S...

Page 180: ...2 R E F 4 5 C I S 0 V S 0 V N C U S L S 0 V 2 6 V C M L R L 2 C I T E L O F F P L S T E L R L R L 1 T E L S L V 1 4 4 P M J T E L S L 4 3 2 S R E F S 0 V S 0 V 5 V C E B T E L R L 1 2 6 V S 0 V F G F G 5 V 5 V R E F P 3 P 2 3 C O M P O N E N T S I N P A R E N T H E S I S N O T T O B E M O U N T E D R 2 4 J W 1 2 8 3 7 4 5 6 6 5 4 7 3 8 2 1 J W 9 B A 1 0 3 5 8 o r J W 1 6 3 A B 1 2 3 C D 1 2 3 5 6 ...

Page 181: ...D P S 5 V 3 3 2 2 3 2 4 1 S 0 V 1 2 4 3 P L S J W 5 X 2 J P 2 5 1 0 J P 2 6 5 J P 2 3 5 J P 2 0 5 J P 1 1 1 0 J P 8 5 J P 2 9 C J P 1 9 2 0 J P 3 0 C J P 2 2 1 0 J P 2 1 2 0 J P 2 8 C J P 1 7 5 J P 9 1 0 J P 1 8 5 J P 2 7 C T A D B I N A T O N E 2 S 0 V C N 3 4 4 P M J S 0 V S O V D G S D A S N D T E L R L R E F S 0 V S 0 V 5 V J W 9 1 0 J W 1 0 1 0 J W 1 1 1 0 J W 8 1 0 1 2 P 1 B 2 B P H S 0 V S ...

Page 182: ... V S 0 V 1 2 4 3 S 0 V 5 6 T E L O F F 1 1 R E F P O L C H 2 F G 4 3 1 2 M B C M B C C B M E S 0 V R E F S 0 V A O U T R 2 7 1 0 K C M L S 0 V D A S T T E L O F F 1 A D L C C M L S 0 V P H 1 T L P 6 2 6 B V R E F 5 V 5 V S 0 V E T E L R L R L 1 5 V S 0 V S 0 V P 2 I M S A 6 0 3 3 B 1 8 Z o r 1 2 1 1 1 0 8 3 2 5 1 9 6 7 2 0 1 3 1 8 1 7 1 5 4 1 6 1 9 E A R T H 1 4 S 0 V 1 2 3 R E F 4 1 4 1 R D P S S...

Page 183: ... P S 5 V 3 3 2 2 3 2 4 1 5 V S 0 V 4 3 V X 2 E A 1 2 4 3 1 2 4 3 P L S J P 2 5 1 0 J P 2 6 5 J P 2 3 5 J P 2 0 5 J P 1 1 1 0 J P 8 5 J P 2 9 C J P 1 9 2 0 J P 3 0 C J P 2 2 1 0 J P 2 1 2 0 J P 2 8 C J P 2 7 C J P 1 8 5 J P 1 7 5 J P 9 1 0 2 S 0 V C N 3 4 4 P M J 5 V S 0 V S 0 V S O V D G S D A S N D T E L R L R E F S 0 V S R E F S 0 V 5 V J W 9 1 0 J W 1 0 1 0 J W 1 1 1 0 J W 8 1 0 S P 2 1 2 P 1 B...

Page 184: ...3 2 2 3 2 4 1 S 0 V 1 2 4 3 P L S P 2 B 1 2 B P H P 3 B 6 B P H J P 2 5 1 0 J P 2 6 5 J P 2 3 5 J P 2 0 5 J P 1 1 1 0 J P 8 5 J P 1 9 2 0 J P 3 0 C J P 2 2 1 0 J P 2 1 2 0 J P 2 8 C J P 2 7 C J P 1 8 5 J P 6 5 J P 1 7 5 J P 9 1 0 2 S 0 V C N 3 4 4 P M J 5 V S 0 V S 0 V S O V D G S D A S N D T E L R L R E F S 0 V S 0 V 5 V J W 9 1 0 J W 1 0 1 0 J W 1 1 1 0 J W 8 1 0 S P 2 1 2 P 1 B 2 B P H S 0 V E ...

Page 185: ...D CONTROL PANEL 1 2 ...

Page 186: ... 1 T O U C H 1 3 3 3 S t a r t S p e e d D i a l 1 0 K E Y 1 0 K E Y 0 1 0 K E Y 4 9 5 0 5 1 5 2 5 3 5 4 S h i f t 1 T O U C H 1 6 3 6 1 T O U C H 1 7 3 7 1 T O U C H 1 8 3 8 S e t F u n c t i o n F u n c t i o n C l e a r T e l i n d e x R e s o l u t i o n M o d e C o v e r p a g e S u p e r Q S c a n H e l p H o o k 1 0 K E Y 1 1 0 K E Y 2 A B C 1 0 K E Y 3 D E F 1 T O U C H 0 1 1 3 1 T O U C H...

Page 187: ...E POWER SUPPLY 120 V Low voltage power supply ...

Page 188: ...E POWER SUPPLY 200 240 V Low voltage power supply European versions ...

Page 189: ...E POWER SUPPLY 200 240 V Low voltage power supply Asian versions ...

Page 190: ...E POWER SUPPLY High voltage power supply ...

Page 191: ...Sept 98 5X52012 Printed in Japan ...

Search results

Summary of Contents for MFC 4550

Reviews:

Brands by name

Popular brands

Brother MFC 4550, Service Manual

Search results

Summary of Contents for MFC 4550

Reviews:

Brands by name

Popular brands