Brother International 1920CN Service Manual
Brother International 1920CN - Color Inkjet - Fax Manual
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- Brother International 1920CN | Service Manual - Page 1
MULTI-FUNCTION CENTER SERVICE MANUAL MODEL: MFC9600/MFC9850/MFC9870 DCP1200/MFC9750 - Brother International 1920CN | Service Manual - Page 2
© Copyright Brother 2000 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. All products and company names mentioned in this manual are trademarks or - Brother International 1920CN | Service Manual - Page 3
This publication is a Service Manual covering the specifications, construction, theory of operation, and maintenance of the Brother machine. It includes information required for field troubleshooting and repair--disassembly, reassembly, and lubrication--so that service personnel will be able - Brother International 1920CN | Service Manual - Page 4
Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968. This means that the printer does marketed in the United States. The label for Chinese products MANUFACTURED: JULY 1999 C BROTHER CORP. (ASIA) LTD. BROTHER BUJI NAN LING - Brother International 1920CN | Service Manual - Page 5
CHAPTER I. GENERAL DESCRIPTION - Brother International 1920CN | Service Manual - Page 6
CHAPTER I. GENERAL DESCRIPTION CONTENTS 1. MACHINE OUTLINE I-1 1.1 External Appearance and Weight I-1 1.2 Components I-1 2. SPECIFICATIONS I-2 - Brother International 1920CN | Service Manual - Page 7
OUTLINE 1.1 External Appearance and Weight The figure below shows the machine appearance and approximate dimensions. Weight: Machine proper Machine (incl. drum unit & toner cartridge) In package 15.2 kg 17.0 kg 21.2 kg 1.2 Components The machine consists of the following major components: I - 1 - Brother International 1920CN | Service Manual - Page 8
Clock Memory Capacity Backup Memory Optional Memory Dimensions w/ Carton (WxDxH) Dimensions w/o Carton (WxDxH) Weight w/o Carton Weight w/ Carton Color Standby Mode PC-Fax Protocol Compliance Simultaneous Operation Energy Star Compliance Operating Environment Temperature Humidity Power Source Power - Brother International 1920CN | Service Manual - Page 9
mm Weight w/o Carton 17 kg Weight w/ Carton 21.2 kg Color Gray 1495 Standby Mode Yes PC-Fax Protocol Compliance Class 2 Simultaneous 15 chars Telephone Index Yes (Normal) Speaker Phone No (1/6) Multi-Function Center w/ Fax MFC9850 Laser (ZL) 14,400 (Fax) 5 G3 MH/MR/MMR/JBIG FB: 8.5" x - Brother International 1920CN | Service Manual - Page 10
Clock Memory Capacity Backup Memory Optional Memory Dimensions w/ Carton (WxDxH) Dimensions w/o Carton (WxDxH) Weight w/o Carton Weight w/ Carton Color Standby Mode PC-Fax Protocol Compliance Simultaneous Operation Energy Star Compliance Operating Environment Temperature Humidity Power Source Power - Brother International 1920CN | Service Manual - Page 11
Scale Contrast Smoothing Call Reservation Over Auto TX Password Check Enhanced Remote Activation Multi-Resolution Transmission Multi- Batch Transmission Auto Reduction Out-of-Paper Reception (Brother #1 Chart) Dual Access ECM (Error Correction Mode) ITU SUB Addressing Multi-Function Center - Brother International 1920CN | Service Manual - Page 12
Over Auto TX Password Check Enhanced Remote Paper Reception (ITU-T Chart) Dual Access ECM (Error Correction Mode) ITU SUB Addressing Multi-Function Center Up to 150 pages Yes Yes Yes (Wordcraft S/W) (2/6) Multi-Function Center w/ Fax MFC9850 Yes No No Yes (U.K. DEN) No No Yes (3 steps + OFF) Yes - Brother International 1920CN | Service Manual - Page 13
Gray Scale Contrast Smoothing Call Reservation Over Auto TX Password Check Enhanced Remote Activation Multi-Resolution Transmission Multi-Transmission Reduction Out-of-Paper Reception (Brother #1 Chart) Out-of-Paper Reception (ITU-T Chart) Dual Access ECM (Error Correction Mode) ITU SUB Addressing - Brother International 1920CN | Service Manual - Page 14
Error Re-Transmission Station ID Off-Hook Alarm Remote Maintenance Call Reservation Over Manual TX RX Mode Indication Resolution Indication Memory Security Color FAX Manual LAN Board) Mono Laser (ZL) 600 x 600 12 250 250 (User Option) 150 Windows GDI (600 x 600) I - 8 (3/6) Multi- Function Center - Brother International 1920CN | Service Manual - Page 15
Error Re-Transmission Station ID Off-Hook Alarm Remote Maintenance Call Reservation Over Manual TX RX Mode Indication Resolution Indication Memory Security Color FAX Manual x 600 12 250 250 (User option) 150 Windows GDI (600 x 600) I - 9 (3/6) Multi- Function Center w/ Fax MFC9850 Yes (6) No 1 (20 - Brother International 1920CN | Service Manual - Page 16
Dial Error Re-Transmission Station ID Off-Hook Alarm Remote Maintenance Call Reservation Over Manual TX RX Mode Indication Resolution Indication Memory Security Color FAX Manual Broadcasting LCD No Yes Yes No Yes Mono Laser (ZL) 600 x 600 12 250 250 (User option) 150 Windows GDI (600 x 600) I - 10 - Brother International 1920CN | Service Manual - Page 17
.1x, 95/98, and NT4.0 Driver Win3.1x, 95/98, and NT4.0 Driver Yes (Remote Printer Console for PCL4) Yes (Remote Printer Console for PCL4) Yes (Parallel) Yes (Parallel) Optional LAN Board (Brother) Printer/Internet FAX Optional LAN Board (Brother) Printer only COPY Color/Mono Speed (ppm) Multi - Brother International 1920CN | Service Manual - Page 18
Win3.1x, 95/98, and NT4.0 Driver Yes (Remote Printer Console for PCL4) Yes (Parallel) Option (Brother) (4/6) Multi- Function Center w/ Fax MFC9850 No No Yes (35 TrueType) LTR, 400% in 1% increments 300 x 600 SCANNER Yes No Color/Mono Color/Mono N/A Resolution (dpi) 1,200 x 1,200 (Int.)/300 - Brother International 1920CN | Service Manual - Page 19
, Organizer 64-105 g/m2 (17 to 28 lb) 64-157 g/m2 (17 to 43 lb) Win3.1x, 95/98, and NT4.0 Driver Yes (Remote Printer Console for PCL4) No COPY Color/Mono Speed (ppm) Multi Copy (Stack) Multi Copy (Sort) Reduction/Enlargement (%) Resolution (dpi) Mono Up to 12 Up to 99 Yes 25 - Brother International 1920CN | Service Manual - Page 20
Pro;Paging N/A Fax/Voice Mail Box N/A Fax/Voice on Demand N/A VIDEO CAPTURE No Video Capture Yes (Color) Video Print Yes (Mono) Video Format NTSC BUNDLED SOFTWARE (For Windows) Printer Driver TWAIN Veiwer PC Fax Others Formats (Import) Formats (Export) OCR Pop Up Menu PCI Remote Setup - Brother International 1920CN | Service Manual - Page 21
Print No Video Format No BUNDLED SOFTWARE (For Windows) Printer Driver TWAIN Veiwer PC Fax Others Formats (Import) Formats Printer Driver N/A TWAIN N/A Veiwer N/A PC Fax N/A Others N/A (5/6) Multi- Function Center w/ Fax MFC9850 No N/A N/A No N/A N/A N/A N/A N/A N/A No No No Brother - Brother International 1920CN | Service Manual - Page 22
No Video Capture Video Print Video Format BUNDLED SOFTWARE (For Windows) Printer Driver TWAIN Veiwer PC Fax Others Formats (Import) Formats (Export) Remote Setup (Remote Diagnostics) Remote Setup for Time Remote Setup for Tel No. Brother No No No TIFF/BMP/PCX/DCX/BTF/BTX/MAX/PDF TIFF/BMP/MAX/ - Brother International 1920CN | Service Manual - Page 23
Machine Type Model Formats (Import) Formats (Export) OCR Pop Up Menu PCI Remote Setup Remote Setup for Date/Time Remote Setup for Tel No. Registration Multi- Function Center w/ Fax MFC9600 Depends on viewer Depends on viewer No No No No No (6/6) Multi- Function Center w/o Fax DCP1200 Depends on - Brother International 1920CN | Service Manual - Page 24
Machine Type Model Formats (Import) Formats (Export) OCR Pop Up Menu PCI Remote Setup Remote Setup for Date/Time Remote Setup for Tel No. Registration Multi- Function Center w/ Fax MFC9870 N/A N/A N/A N/A N/A N/A N/A (6/6) Multi- Function Center w/o Fax MFC9850 N/A N/A N/A N/A N/A N/A N/A I - 18 - Brother International 1920CN | Service Manual - Page 25
Machine Type Model Formats (Import) Formats (Export) OCR Pop Up Menu PCI Remote Setup Remote Setup for Date/Time Remote Setup for Tel No. Registration (6/6) Multi- Function Center w/ Fax MFC9750 N/A N/A N/A N/A N/A N/A N/A I - 19 - Brother International 1920CN | Service Manual - Page 26
CHAPTER II. INSTALLATION - Brother International 1920CN | Service Manual - Page 27
CHAPTER II. INSTALLATION CONTENTS 1. INSTALLING THE UPDATE DATA TO THE MACHINE II-1 - Brother International 1920CN | Service Manual - Page 28
MACHINE If the program version is updated or the main PCB is replaced, install the update program onto the flash ROM of the main with the lock wires. (4) Connect the other end of the interface cable to the printer port of your computer and secure it with the two screws. (5) Power on your computer. - Brother International 1920CN | Service Manual - Page 29
point to Programs, and then click MS-DOS Prompt to open an MSDOS window. (3) Type the drive letter where the update data and transfer utility are Then press the ENTER key. During downloading, the machine beeps intermittently. Upon completion of the downloading, the machine beeps continuously. NOTE - Brother International 1920CN | Service Manual - Page 30
CHAPTER III. THEORY OF OPERATION - Brother International 1920CN | Service Manual - Page 31
CHAPTER III. THEORY OF OPERATION CONTENTS 1. OVERVIEW...III-1 2. MECHANISMS...III-2 2.1 Scanner Mechanism III-3 2.2 Laser Printing Mechanism III-5 2.2.1 Paper pick-up and registration mechanism III-5 2.2.2 Print process mechanism III-6 2.2.3 Heat-fixing mechanism III-8 2.2.4 Paper ejecting - Brother International 1920CN | Service Manual - Page 32
1. OVERVIEW * Provided on models supporting facsimile function. III - 1 - Brother International 1920CN | Service Manual - Page 33
2. MECHANISMS The machine is classified into the following mechanisms: n SCANNER MECHANISM - ADF mechanism - Document scanning mechanism n LASER PRINTING MECHANISM - Paper pick-up and registration mechanism - Print process mechanism (consisting of charging, exposing, developing, and - Brother International 1920CN | Service Manual - Page 34
This mechanism consists of the following: - document tray ASSY which consists of a document chute and document tray, - automatic document feeder (ADF) unit which consists of a document feed roller ASSY, document ejection roller ASSY, ADF motor, and document front and rear sensors, and - scanner - Brother International 1920CN | Service Manual - Page 35
will be transmitted via the gear train to the CCD drive belt. The CCD unit, which is supported and guided by the CCD rail, is secured to the CCD drive belt. Clockwise and counterclockwise rotations of the CCD motor move the CCD unit to the right and left, respectively. In this scanning system, the - Brother International 1920CN | Service Manual - Page 36
2.2 Laser Printing Mechanism 2.2.1 Paper pick-up and registration mechanism III - 5 - Brother International 1920CN | Service Manual - Page 37
time. After the leading edge of the pulled-in paper passes through the manual insertion sensor actuator, the paper is further fed for the specified time length. paper feed roller for feeding paper to the transfer block in the drum unit. When the leading and trailing edges of the paper pass through - Brother International 1920CN | Service Manual - Page 38
The print process unit works with laser beam, electrical charges, and toner. The graph below shows the transition of electrical charge on the surface of the laser-sensitive drum through the four processes: charging, exposing, developing, and transferring processes. III - 7 - Brother International 1920CN | Service Manual - Page 39
2.2.3 Heat-fixing mechanism As the paper passes between the heater roller and the pressure roller in the heat-fixing unit, the heater roller fuses the toner on the paper. The controller monitors the internal resistance of the heater thermistor to keep the surface temperature of the heater roller - Brother International 1920CN | Service Manual - Page 40
2.2.4 Paper ejecting mechanism After the paper passes through the heat-fixing process, it will be ejected from the heat-fixing unit by the paper ejection roller. If the leading edge of the paper pushes up the actuator of the paper ejection sensor, the sensor signals the - Brother International 1920CN | Service Manual - Page 41
Paper ejection sensor PCB Toner sensor (LED) PCB and toner sensor (light-receiver) PCB Toner sensor (LED) PCB Heat-fixing unit Left-hand plate of the scan for that page is over. • Manual insertion sensor which detects whether paper is inserted manually through the paper slot or whether paper fed - Brother International 1920CN | Service Manual - Page 42
Location of Sensors and Actuators III - 11 - Brother International 1920CN | Service Manual - Page 43
CONTROL ELECTRONICS The hardware configuration of the machine is shown below. *1 Provided on models supporting LAN interface. *2 Provided on models supporting video capture. *3 Provided on models supporting facsimile function. *4 Provided on models available with a 2nd paper cassette (as an option - Brother International 1920CN | Service Manual - Page 44
CHAPTER IV. DISASSEMBLY/REASSEMBLY AND LUBRICATION - Brother International 1920CN | Service Manual - Page 45
Cover Front Sub Cover (for models not supporting video capture IV-32 1.14 Outer Chute and Paper Pinch Rollers IV-33 1.15 Main Cover...IV-34 1.16 Switch Cover (for models not equipped with a power switch IV-35 1.17 Laser Unit...IV-36 1.18 Heat-fixing Unit and FU Lamp IV-37 1.19 - Brother International 1920CN | Service Manual - Page 46
-receiver) PCB and Toner Sensor (LED) PCB IV-55 1.26 Gears and Paper Pick-up Roller IV-56 1.27 Paper Feed Roller ASSY IV-57 1.28 Clutch Levers, Cassette Guide L, and Solenoid IV-58 1.29 Cleaning of High-voltage Contacts and Grounding Contacts IV-59 2. LUBRICATION ...IV-61 [ 1 ] ADF unit IV-61 - Brother International 1920CN | Service Manual - Page 47
. (2) When servicing the optical system of the laser printing unit, be careful unit (inside this unit is a red-colored heater roller) sufficient time to cool down before starting maintenance jobs. It is HOT! (4) Be careful not to lose screws, washers, or other parts removed for parts replacement - Brother International 1920CN | Service Manual - Page 48
cable, and - the modular jack of an external telephone set if connected. (Not shown below.) (2) Remove - the paper cassette and - the drum unit (with toner cartridge loaded). n How to Access the Object Component • On the next page is a disassembly order flow which helps you access the object - Brother International 1920CN | Service Manual - Page 49
n Disassembly Order Flow IV - 3 - Brother International 1920CN | Service Manual - Page 50
1.1 Lower Rear Cover (1) Remove the three screws (two "a" and one "b") from the lower rear cover. Screw "b" is provided on those models available with a 2nd paper cassette (as an option). (2) Lightly pressing sections "X," pull out the lower rear cover. "a" and "b": Screw, pan (washer) M4x10DB 1.2 - Brother International 1920CN | Service Manual - Page 51
lever to the front to release the pressure plate. (2) Fully slide the side guide (R or L) inwards (in the direction of arrow •) and remove the screw. Then release the latches (arrow ,) and pull up the side guide (arrow ƒ). (3) Release the pressure plate from the bosses (arrow „) and remove it (arrow - Brother International 1920CN | Service Manual - Page 52
1.4 Document Tray ASSY (1) Fully open the document tray ASSY. (2) Lift up the document tray ASSY straight and pull the hinges up and out of the scanner unit. (3) Remove the three screws from each of the hinges. IV - 6 - Brother International 1920CN | Service Manual - Page 53
(4) Remove screw "a," then lightly tap the left end of the document chute to release the three hooks from the document tray. (5) Remove the sponge. (6) Remove screw "b" to take off the support plate. IV - 7 - Brother International 1920CN | Service Manual - Page 54
the top of the upper rear cover to the rear and upwards. n Reassembling Notes • When installing the upper rear cover, first hook sections "b" onto the supports of the scanner mount and push the upper rear cover into place. IV - 8 - Brother International 1920CN | Service Manual - Page 55
1.6 ADF Unit (1) Remove screw "a" from the harness support. (2) Remove screw "b" to release the grounding wires. (3) Disconnect the following from the relay PCB: • CCD flat cable (P4) • ADF motor harness (4-pin, P3) • Document sensor - Brother International 1920CN | Service Manual - Page 56
(5) Open the ADF cover (arrow ƒ) and remove two screws "c." (6) Lift up the ADF unit while pulling out the ADF motor harness, document sensor harness, and grounding wire. The ADF supports also come off. (7) Take off the harness support by removing screw "d." "c" and "d": Taptite, cup B M3x8 IV - 10 - Brother International 1920CN | Service Manual - Page 57
[ Disassembling the ADF Unit ] 1) Open the ADF cover. Pull the ADF side cover outwards and release the ADF cover from the bosses provided on the ADF side covers. 2) At - Brother International 1920CN | Service Manual - Page 58
4) At the front end of the document feed roller shaft, remove the pawled bushing by pulling its pawls outwards. At the rear end, pull the bushing outwards and lift up the document feed roller ASSY. 5) At the front end of the upper LF roller (gray) shaft, remove the pawled bushing by pulling its - Brother International 1920CN | Service Manual - Page 59
shown below and lift it up. 13) Disconnect the document sensor harness from the document sensor PCB and take out its harness from the harness guides. 14) Unhook the two latches (large and small latches in this order) from the document sensor PCB and lift it up. IV - 13 - Brother International 1920CN | Service Manual - Page 60
15) At the front end of the document ejection roller shaft, remove the pawled bushing by pulling its pawls outwards. At the rear end, pull the bushing outwards and lift up the document ejection roller ASSY. 16) Remove the three screws and take off the motor bracket. 17) At the front end of the lower - Brother International 1920CN | Service Manual - Page 61
to route the document sensor harness through the three harness guides so that it will not interfere with the document rear unit, first set the ADF support onto rear pin "x" of the ADF unit, set the ADF unit back into place, set the other ADF support onto front pin "y," then secure those ADF supports - Brother International 1920CN | Service Manual - Page 62
1.7 Scanner Unit and Control Panel ASSY (1) Disconnect the following from the relay PCB: - CCD motor harness - Panel harness - Scanner HP sensor harness IV - 16 - Brother International 1920CN | Service Manual - Page 63
(2) Slide the scanner unit (with the control panel ASSY) to the rear by approx. 5 mm and then lift it up. (For the disassembly procedure of the scanner unit, refer to page IV-19.) IV - 17 - Brother International 1920CN | Service Manual - Page 64
ASSY, refer to page IV-24.) n Reassembling Notes • When reinstalling the scanner unit, fit the holes and cutouts provided in the scanner unit over screws "A" and pawls of the scanner mount, respectively, and then slide the scanner unit to the front. (Refer to page IV-17.) • When connecting the CCD - Brother International 1920CN | Service Manual - Page 65
harness to the relay PCB, route them as shown below. [ Disassembling the Scanner Unit ] The disassembling job of the scanner unit should be done in a clean room to prevent dust or dirt from getting into the scanner unit. 1) Remove the four screws from the scanner top cover. 2) Separate the scanner - Brother International 1920CN | Service Manual - Page 66
"b" from the CCD idle pulley holder, then remove the CCD drive belt from the idle pulley. 6) Lift up the CCD rail together with the CCD unit and CCD drive belt, and then disconnect the CCD flat cable. NOTE: When handling the CCD unit, do not touch the CCD PCB or glasses but hold the - Brother International 1920CN | Service Manual - Page 67
9) Pull up the CCD motor harness and disconnect it from the CCD motor. 10) Remove three screws "c" from the motor bracket. 11) Lift up the motor bracket. 12) Remove two screws "d" from the CCD motor. The scanner grounding wire also comes off. 13) Disconnect the CCD HP sensor harness from the sensor. - Brother International 1920CN | Service Manual - Page 68
attached with adhesive tape. 16) Remove the CCD flat cable (which is attached with adhesive tape). 17) Remove the four screws and take off the guide plate. 18) Remove tape and sponges 1, then take out the panel harness and CCD HP sensor harness. NOTE: Once removed, the sponges 1 will become unusable - Brother International 1920CN | Service Manual - Page 69
Reassembling Notes • Route the panel harness and CCD HP sensor harness through the three notches, then tape them as illustrated on the previous page. • When replacing the CCD flat cable with a new one, be sure to arrange the new cable as illustrated below, then route it along the positioning rib as - Brother International 1920CN | Service Manual - Page 70
and disconnect the LCD flat cable. 4) Remove six screws "b." 5) Remove the key support plate and FPC key. "a": Taptite, cup B M2.6x8 "b": Taptite, cup B out the LCD except when the LCD is defective and requires replacement. n Reassembling Notes • Before reinstalling the LCD to the control panel, - Brother International 1920CN | Service Manual - Page 71
1.8 Relay PCB (1) Disconnect the following harnesses from the relay PCB: - Speaker harness - Main-relay (panel) harness - Main-relay (CCD) harness - Main-relay (motors) harness (2) Remove the two screws. (3) Take out the relay PCB. n Reassembling Notes • When setting the relay PCB back into place, - Brother International 1920CN | Service Manual - Page 72
1.9 Speaker (1) Press the pawl in the direction of arrow À and slide the speaker spring in the direction of arrow Á. (2) Lift up the speaker. IV - 26 - Brother International 1920CN | Service Manual - Page 73
1.10 Scanner Mount (1) Remove two screws "a." (2) Open the front cover and remove two screws "b." (3) Pull the tabs of the scanner mount to the front and upwards (in the direction of arrows À) to release them from the bosses provided on the main cover. (4) Lift up the scanner mount in the direction - Brother International 1920CN | Service Manual - Page 74
(5) Turn the scanner mount upside down. (6) Peel off anti-static brushes. NOTE: Once removed, they will become unusable and new parts will have to be put back in. (7) As shown below, warp the gear-equipped end of the exit roller and remove it. IV - 28 - Brother International 1920CN | Service Manual - Page 75
n Reassembling Notes • When setting the scanner mount back into place: - at the right-hand side, raise the main-relay (panel) harness coming through the main cover up and through cutout "x" provided in the scanner mount. - at the left-hand side, pull up the main-relay (motors) harness and chassis - Brother International 1920CN | Service Manual - Page 76
1.11 Paper Sub Tray and Tray Holder (1) Pull out the paper sub tray. (2) While pushing down the center of the paper sub tray to warp it (in the direction of arrow À), pull it out of the tray holder (arrow Á). (3) Insert the tip of a small flat screwdriver into the tray holder (in the direction of - Brother International 1920CN | Service Manual - Page 77
1.12 VC Cover, VC Bracket, and VC Connector PCB (for models supporting video capture) (1) Remove two screws ("a" and "b"), then take off the VC cover. (2) Remove screw "c," take out the VC bracket together with the VC connector PCB, - Brother International 1920CN | Service Manual - Page 78
1.13 Front Cover Front Sub Cover (for models not supporting video capture) (1) For models not supporting video capture: Remove the screw and take off the front sub cover from the front cover. (2) Remove the screw from the left bottom of the - Brother International 1920CN | Service Manual - Page 79
the chute springs from the hooks provided on the main cover (arrow ,), then lift up the outer chute (arrow ƒ). (3) Remove the paper pinch rollers, their supports, and their springs. IV - 33 - Brother International 1920CN | Service Manual - Page 80
1.15 Main Cover (1) Remove two screws "a" from the front side of the main cover. (2) Remove two screws "b" from the rear side of the main cover, and then pull corner edges "X" outwards to dislocate the main cover from the main chassis. Make sure that the cutout provided in the main cover is - Brother International 1920CN | Service Manual - Page 81
1.16 Switch Cover (for models not equipped with a power switch) (1) Push the locks of the switch cover as shown below and remove it. IV - 35 - Brother International 1920CN | Service Manual - Page 82
in the factory. Do not disturb it. "a" and "b": Taptite, cup S M3x16 n Reassembling Notes • Before putting the laser unit back into place, check for any toner particles, paper dust or dirt, and clean them out. • After routing the polygon motor harness and laser flat cable, tape them onto the laser - Brother International 1920CN | Service Manual - Page 83
1.18 Heat-fixing Unit and FU Lamp (1) Remove the screw from the harness duct. The chassis grounding wire also comes off. (2) Peel off from the harness duct. (3) Unhook the harness duct from the main chassis in the directions of arrows • and ,. *Provided on models supporting video capture IV - 37 - Brother International 1920CN | Service Manual - Page 84
wire (of the heater harness) from the upper center of the heat- fixing unit. (6) Disconnect the short heater wire (of the heater harness) from the left end of the heat-fixing unit. (7) Lift up the heat-fixing unit and disconnect the heater thermistor harness from the engine PCB. "a": Stepped screw - Brother International 1920CN | Service Manual - Page 85
To take out the FU lamp from the heat-fixing unit, remove two screws "c." (9) Unhook the two latches outwards heater roller (arrow ...). CAUTION: Do not touch the FU lamp. If you have touched it, clean it thoroughly with alcohol. "c": Taptite, cup B M3x20 "d": Pan cup M3x6 "e": Taptite, pan M3x10DB - Brother International 1920CN | Service Manual - Page 86
the illustration given on page IV-41) and then route the long heater wire as shown below. • If you remove and reinstall the heat-fixing unit because of any failure, make the machine enter the maintenance mode (see Note) after completion of reassembly and then make it exit from the mode - Brother International 1920CN | Service Manual - Page 87
1.19 Fan (1) Disconnect the fan harness from the engine PCB. (2) Remove two screws, take out the heater wires from the latch of the fan duct, and take off the fan duct together with the fan. IV - 41 - Brother International 1920CN | Service Manual - Page 88
(3) As shown below, pull the fan duct outwards and take out the fan. n Reassembling Notes • Put the fan back into place so that the rating label faces outwards and upside down. • Route the heater wires through the latch of the fan duct as shown on the previous page. IV - 42 - Brother International 1920CN | Service Manual - Page 89
and spring, and then disconnect the main motor harness. (3) Remove the front cover link and idle gear 56 from the main chassis. *Provided on models supporting video capture IV - 43 - Brother International 1920CN | Service Manual - Page 90
(4) Remove four screws and take off the main motor ASSY from the drive gear ASSY. n Reassembling Notes • If you have removed the gear 39/98 from the drive gear ASSY, hook the spring and tape it as shown below. IV - 44 - Brother International 1920CN | Service Manual - Page 91
1.21 NCU Shield and NCU PCB* (*Provided on models supporting facsimile function.) (1) Remove three screws from the NCU shield, then take off the NCU shield. (2) USA version: Disconnect the main-NCU harness from the main - Brother International 1920CN | Service Manual - Page 92
n Reassembling Notes [USA version] • Route the main-NCU harness above the main-relay (motors) harness as illustrated below. [European version] • As illustrated below, route the main-NCU harness and main-NCU harness 2 between the NCU PCB and the power supply bracket to prevent them from interfering - Brother International 1920CN | Service Manual - Page 93
, P7) • Main-relay (CCD) harness (12-pin, P8) • In-casing temperature sensor harness (2-pin, P9) • Main-relay (motors) harness (11-pin, P10) *1 Provided on models supporting video capture *2 Provided on the European version IV - 47 - Brother International 1920CN | Service Manual - Page 94
(2) Turn the main chassis upside down. (3) Remove 14 screws (nine "a" and five "b"). (4) Slightly lift up the bottom plate and pull it to the rear until you can remove screw "c." (5) Remove screw "c" to release the grounding wire. (6) For models available with a 2nd paper cassette: Removes screw "d" - Brother International 1920CN | Service Manual - Page 95
, make sure that the grounding wire is looped and routed through the support film (as illustrated on page IV-51) and then secure the grounding wire to the bottom plate with screw "c" (shown on the previous page). • After you replace the main PCB, be sure to follow the flowchart given on the - Brother International 1920CN | Service Manual - Page 96
Setting up the main PCB after replacement IV - 50 - Brother International 1920CN | Service Manual - Page 97
1.23 Low-voltage Power Supply PCB and Power Inlet (1) Remove two screws "g" and take off the rear underbar. (2) Remove screw "h." (3) Slightly lift up the low-voltage power supply PCB and disconnect the heater harness and main-LV-engine harness. The low-voltage power supply PCB is connected to the - Brother International 1920CN | Service Manual - Page 98
PCB. • After setting the power inlet back into place, fold the grounding wire into two and route the fold through cutout "Y" provided in the support film as shown on the previous page. • When reinstalling the low-voltage power supply PCB, route the main-LV-engine harness through cutout "X" provided - Brother International 1920CN | Service Manual - Page 99
) • 2nd cassette relay harness* (8-pin, P8) • Heater thermistor harness (2-pin, P6), if the heat-fixing unit has not been removed • Fan harness (2-pin, P7), if the fan has not been removed • Toner sensor (LED) harness (4-pin, P10) • Main motor harness (6-pin, P9) • Polygon motor harness (5-pin, P12 - Brother International 1920CN | Service Manual - Page 100
a flat screwdriver until it snaps into place as shown below. • 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. IV - 54 - Brother International 1920CN | Service Manual - Page 101
two harness latches, and then pull it out. (2) At the left-hand plate of the main chassis, press the both sides of the lens support on the toner sensor (LED) PCB with your fingers to release them from the main chassis, release its harness from the two latches, and then pull it - Brother International 1920CN | Service Manual - Page 102
1.26 Gears and Paper Pick-up Roller (1) Place the main chassis upside down. (2) Remove the inner gear 54 (by pulling its pawl outwards), gear 45 set P/R, gear 20 P/R, and the bushing from the end of the paper pick-up roller shaft. (3) Remove the pawled bushing by pulling its pawl outwards, then - Brother International 1920CN | Service Manual - Page 103
1.27 Paper Feed Roller ASSY (1) Unhook the latch (arrow •) provided on the underside of the plastic frame by using a small flat screwdriver and pull out the gear 21 (arrow ,). (2) Place the main chassis rightside up. (3) At the right end of the paper feed roller shaft, pull up the pawl of the - Brother International 1920CN | Service Manual - Page 104
lever spring and clutch lever P/R. (6) Remove the plunger and solenoid release spring. (7) Remove two screws "a" and take off the cassette guide L. (8) Remove screw "b" and take off the solenoid. "a": Taptite, cup S M3x6 "b": Screw, bind M3x4 n Reassembling Notes • Route the solenoid harness through - Brother International 1920CN | Service Manual - Page 105
1.29 Cleaning of High-voltage Contacts and Grounding Contacts If any toner particles, paper dust or dirt are on the contacts, clean them out. This will ensure that power flows correctly to enable printing. IV - 59 - Brother International 1920CN | Service Manual - Page 106
IV - 60 - Brother International 1920CN | Service Manual - Page 107
grease (3 mm3) Rice-sized pinch of grease (6 mm3) Two rice-sized pinches Five rice-sized pinches of grease (12 mm3) of grease (30 mm3) ------- ------- ------- ------- ------- ------- ------- ------- ------- [ 1 ] ADF unit IV - 61 - Brother International 1920CN | Service Manual - Page 108
[ 2 ] Scanner mount IV - 62 - Brother International 1920CN | Service Manual - Page 109
[ 3 ] Drive gear ASSY IV - 63 - Brother International 1920CN | Service Manual - Page 110
[ 4 ] Paper cassette IV - 64 - Brother International 1920CN | Service Manual - Page 111
CHAPTER V. MAINTENANCE MODE - Brother International 1920CN | Service Manual - Page 112
Area Setting V-57 3.10 EEPROM Customizing V-57 3.11 Erasure of Received FAX Messages Temporarily Stored in the Flash Memory V-58 3.12 Machine Error Code Indication V-58 3.13 Output of Transmission Log to the Telephone Line (Not applicable to machines w/o fax V-59 3.14 Cancellation of the - Brother International 1920CN | Service Manual - Page 113
1. ENTRY INTO THE MAINTENANCE MODE For machines w/ fax American models: To make the machine enter the maintenance mode, press the Function, *, 2, 8, 6, and 4 keys in this order. Within 2 seconds European models: To make the machine enter the maintenance mode, press the Menu, *, 2, 8, 6, and 4 keys - Brother International 1920CN | Service Manual - Page 114
Setting EEPROM Customizing Erasure of Received FAX Messages Temporarily Stored in the Flash Memory (Not applicable to the American version) Machine Error Code Indication Output of Transmission Log to the Telephone Line (Not applicable to machines w/o fax) EEPROM Parameter Initialization (except the - Brother International 1920CN | Service Manual - Page 115
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 3.5. The service personnel should instruct end users to follow the procedure given below. (1) For machines w/ fax: American models: Press the - Brother International 1920CN | Service Manual - Page 116
listed below. Data item Function code Maintenance-mode functions User switches Firmware switches Remote activation code Activity report Station is 1001, for example, it will be initialized to 0001.) NOTE: If you replace the main PCB with one used for any other machine, carry out this procedure - Brother International 1920CN | Service Manual - Page 117
3.2 Printout of Scanning Compensation Data n Function The machine prints out the white and black level data for scanning compensation. n Operating Procedure Do not start this function merely after powering on the machine but start it after carrying out a sequence of scanning operation. Unless the - Brother International 1920CN | Service Manual - Page 118
Scanning Compensation Data List V - 6 - Brother International 1920CN | Service Manual - Page 119
3.3 ADF Performance Test n Function The machine counts the documents fed by the automatic document feeder (ADF) and displays the count on the LCD for checking the ADF performance. n Operating Procedure (1) Set documents. (Allowable up to the ADF capacity.) The "DOC. READY" will appear on the LCD. - Brother International 1920CN | Service Manual - Page 120
3.4 Test Pattern 1 n Function This function, much like the copying function, prints out test pattern 1 to allow the service personnel to check for record data missing or print quality. n Operating Procedure Press the 0 and 9 keys in this order in the initial stage of the - Brother International 1920CN | Service Manual - Page 121
not be applicable in some versions. The firmware switch data list indicates "Not used." for those inapplicable switches. NOTE: Machines w/o fax support some selectors of firmware switches. Those selector numbers are circled. Firmware Switches (WSW01 through WSW43) WSW No. WSW01 WSW02 WSW03 WSW04 - Brother International 1920CN | Service Manual - Page 122
-digit number is entered for double-digit firmware switch numbers, the machine will automatically return to the initial stage of the maintenance mode. n Note The user-accessible selectors of the firmware switches are shaded in the tables given on the following pages. V - 10 - Brother International 1920CN | Service Manual - Page 123
pulse generation mode Break time length in pulse dialing Inter-digit pause Switching between pulse (DP) and tone (PB) dialing, by the function switch Default dialing mode, pulse (DP) or tone (PB) dialing Setting and Specifications No. 1 2 00 : 01 : 10 : 11 : No. 3 4 00 : 01 : 10 : 11 : No. 5 6 00 - Brother International 1920CN | Service Manual - Page 124
dialing mode, pulse (DP) or tone (PB) dialing This selector sets the default dialing mode (pulse dialing or tone dialing) which may be changed by the function switch. If the user switches it with the function switch when selector 7 is set to "0," the setting specified by this selector will also - Brother International 1920CN | Service Manual - Page 125
WSW03 (PABX* mode setting) Selector No. 1 Function CNG detection when sharing a modular wall socket with a telephone 2 Min. detection time length of | PABX* dial tone, required for 4 starting dialing CNG detection when sharing a 5 modular wall socket with a telephone 6 Dial tone - Brother International 1920CN | Service Manual - Page 126
l Selectors 6 and 7: Dial tone detection in PABX These selectors activate or deactivate the dial tone detection function which detects a dial tone when a line is connected to the PABX. Setting both of these selectors to "1" activates the dial tone detection function so that the machine starts - Brother International 1920CN | Service Manual - Page 127
: 700 ms : 80 ms : 110 ms : 250 ms : 500 ms NOTE: Selectors 5 through 8 are not applicable in those countries where no transfer facility is supported. l Selectors 5 and 6: Earth time length for earth function These selectors set the short-circuiting time length of the telephone line (La or Lb) to - Brother International 1920CN | Service Manual - Page 128
before and after dialing 0 : Yes 1: No NOTE: Selectors 5 through 7 are not applicable in those countries where no busy tone detection is supported. l Selectors 1 through 3: 1st dial tone detection These selectors activate or deactivate the 1st dial tone detection function which detects the 1st - Brother International 1920CN | Service Manual - Page 129
l Selectors 5 and 6: Busy tone detection in automatic sending mode These selectors determine whether or not the machine automatically disconnects a line upon detection of a busy tone in automatic sending mode. Setting selector 6 to "0" ignores a busy tone so that the machine does not disconnect the - Brother International 1920CN | Service Manual - Page 130
WSW06 (Pause key setting and 2nd dial tone detection) Selector No. Function 1 | Pause key setting and 2nd dial tone detection 3 4 | Detection of 2nd dial tone 6 7 No. of 2nd dial tone detection times 8 2nd dial tone interrupt detecting time Setting and Specifications No. 1 2 3 000: - Brother International 1920CN | Service Manual - Page 131
by selectors 1 through 3 (Setting 101, 110, or 111). This function does not apply in those countries where no dial tone detection function is supported. l Selector 7: No. of 2nd dial tone detection times This selector sets the number of dial tone detection times required for starting dialing - Brother International 1920CN | Service Manual - Page 132
dBm 0: 30 ms 1: 50 ms NOTE: Selectors 1 through 7 are not applicable in those countries where no dial tone or line current detection is supported, e.g., U.S.A. l Selectors 1 and 2: Frequency band range These selectors set the frequency band for the 1st dial tone and the busy tone (before dialing - Brother International 1920CN | Service Manual - Page 133
-30 dBm -33 dBm -36 dBm -39 dBm -42 dBm NOTE: The WSW08 is not applicable in those countries where no dial tone detection is supported, e.g., U.S.A. l 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 - Brother International 1920CN | Service Manual - Page 134
. NOTE: Selectors 1 through 6 are not applicable in those models which do not support ECM. l Selector 1: Frame length selection Usually a single frame consists of 256 octets if any data error occurs on the transmission line, the machine retransmits only those frames containing the error data. l - Brother International 1920CN | Service Manual - Page 135
Selector No. 1 2 3 4 5 6 7 8 WSW10 (Protocol definition 2) Function Setting and Specifications Not used. Time length from transmission of the last dial digit to CML ON Time length from CML ON to CNG transmission Time length from CML ON to CED transmission (except for facsimileto-telephone - Brother International 1920CN | Service Manual - Page 136
1: 110-410/320-550 ms 1: 100-660/100-660 ms NOTE: WSW11 is not applicable in those countries where no busy tone detection is supported. NOTE: 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). l Selectors 1 and 2: Frequency band - Brother International 1920CN | Service Manual - Page 137
Selector No. 1 2 3 4 5 6 7 8 WSW12 (Signal detection condition setting) Function Min. OFF time length of calling signal (Ci) Max. OFF time length of calling signal (Ci) Detecting time setting Not used. Setting and Specifications No. 1 2 00 01 10 11 No. 3 4 00 01 10 11 No. 5 6 00 01 10 11 : 1500 - Brother International 1920CN | Service Manual - Page 138
km 5.6 km -43 dBm -47 dBm -49 dBm -51 dBm 1: 8 dB 1: 4 dB 1: 2 dB 1: 1 dB The modem should be adjusted according to the user's line conditions. l Selectors 1 and 2: Cable equalizer These selectors are used to improve the pass-band characteristics of analogue signals on a line. (Attenuation in the - Brother International 1920CN | Service Manual - Page 139
selection These selectors are used to select the frequency band of calling signals for activating the AUTO ANS facility. In the French versions, if the user sets the PBX to OFF from the control panel, the setting made by selectors 1 and 2 will take no effect and the frequency's lower limit will - Brother International 1920CN | Service Manual - Page 140
2 times 1 : 3 times | 1 : 15 times 0: Redialing 1: No redialing NOTE: Selector 7 is not applicable in those countries where no busy tone detection is supported. l Selectors 1 through 6: Selection of redial interval and No. of redialings The machine redials by the number of times set by selectors - Brother International 1920CN | Service Manual - Page 141
Selector No. 1 2 3 | 6 7 8 WSW16 (Function setting 1) Function Not used. CCITT superfine recommendation Setting and Specifications 0: OFF 1: ON Not used. Max. document length limitation Stop key pressed during reception 0: 400 cm 0: Not functional 1: 90 cm 1: Functional l Selector 2: CCITT - Brother International 1920CN | Service Manual - Page 142
Selector No. 1 2 3 4 5 6 7 8 WSW17 (Function setting 2) Function Off-hook alarm Not used. Calendar clock type Not used. Non-ring reception Not used. No. 1 0 0 1 Setting and Specifications 2 0 : No alarm 1 : Always valid X : Valid except when 'call reservation' is selected. 0: U.S.A. type 1: - Brother International 1920CN | Service Manual - Page 143
Selector No. 1 2 3 4 5 6 7 8 WSW18 (Function setting 3) Function Not used. Detection enabled time for CNG and no tone Not used. Registration of station ID Tone sound monitoring Setting and Specifications No. 2 0 0 1 1 3 0: 1: 0: 1: 40 sec. 0 sec. 5 sec. 80 sec. (No detection) 0: No. 7 0 1 1 - Brother International 1920CN | Service Manual - Page 144
a higher one. l Selector 7: V. 34 mode This selector determines whether or not the machine communicates with the remote station in the V. 34 mode when that station supports the V. 34 mode. V - 32 - Brother International 1920CN | Service Manual - Page 145
the second and the following DIS signals are not susceptible to data distortion due to echoes. Note that some models when called may cause error by receiving a self-outputted DIS. l Selectors 8: CNG detection on/off If this selector is set to "1," the machine detects a CNG signal according to the - Brother International 1920CN | Service Manual - Page 146
call when a new call comes in. If Call Waiting Caller ID service is available in the area and the user subscribes to it, he/she can see information about his/her incoming call. l Selectors 5 through 8: Acceptable TCF bit error rate (%) Setting two or more selectors to "1" produces addition of - Brother International 1920CN | Service Manual - Page 147
data counting period will become less than 1.0 second, making the called station judge the line condition unacceptable. l 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 training - Brother International 1920CN | Service Manual - Page 148
Selector No. 1 2 3 4 5 | 8 WSW24 (TAD setting 2) Function Not used. Time length from CML ON to start of pseudo ring backtone transmission Setting and Specifications No. 3 4 00: 01: 10: 11: 4 sec. 3 sec. 2 sec. 1 sec. Not used. l Selectors 3 and 4: Time length from CML ON to start of pseudo - Brother International 1920CN | Service Manual - Page 149
WSW26 (Function setting 4) Selector No. 1 2 3 4 5 6 7 8 Function Not used. Dialing during document reading into the temporary memory in inmemory message transmission No. of CNG cycles to be detected (when the line is connected via the external telephone except in the external TAD mode) No. of CNG - Brother International 1920CN | Service Manual - Page 150
Not used. Ringer OFF setting Not used. Detection of distinctive ringing pattern Setting and Specifications 0: Yes 1: No 0: No 1: Yes Not used. Toner save mode 0: Yes 1: No NOTE: Selector 4 is applicable only to the U.S.A. versions l Selector 2: Ringer OFF setting This selector determines - Brother International 1920CN | Service Manual - Page 151
Selector No. 1 | 3 4 | 6 7 8 WSW28 (Function setting 6) Function Transmission level of DTMF highband frequency signal Transmission level of DTMF low-band frequency signal Not used. Setting and Specifications No. 1 2 3 000 : 001 : 010 : 011 : 100 : 101 : 110 : 111 : No. 4 5 6 000 : 001 : 010 : - Brother International 1920CN | Service Manual - Page 152
report becomes full (as well as displaying a message on the LCD, prompting the output of the activity report). Selector No. 1 | 3 4 5 6 | 8 WSW30 (Function setting 8) Function Setting and Specifications Not used. Duty cycle control of pulsed current for the heat-fixing unit Drum cleaning prompt - Brother International 1920CN | Service Manual - Page 153
of 90 ms long, then the machine will interpret the short-OFF as OFF. l Selector 8: "CHANGE DRUM SOON" message This selector determines whether or not the "CHANGE DRUM SOON" message should appear on the LCD when the service life of the laser-sensitive drum in the laser unit will expire soon. V - 41 - Brother International 1920CN | Service Manual - Page 154
contrast No. 5 6 00: 01: 10: 11: No. 7 8 0 X: 10: 11: Standard Fine Super fine Photo Automatic Super light Super dark l Selectors 5 and 6: Default resolution These selectors set the default resolution which applies when the machine is powered up or completes a transaction. l Selectors 7 and - Brother International 1920CN | Service Manual - Page 155
Selector No. 1 | 5 6 7 8 WSW33 (Function setting 11) Function Setting and Specifications Not used. Report output of polled transmission requests Not used. 0: Yes 1: No NOTE: Selector 6 is not applicable to American versions. V - 43 - Brother International 1920CN | Service Manual - Page 156
WSW34 (Function setting 12) Selector No. 1 | 3 4 5 Function Not used. No. of CNG cycles to be detected (when the line is connected via the machine or external telephone except in the external TAD mode) 6 Number of DTMF tone signals for inhibiting the detection of CNG 7 during external TAD - Brother International 1920CN | Service Manual - Page 157
WSW36 (Function setting 14) Selector No. 1 2 Function ECP* mode Recovery from inactive PC interface Setting and Specifications 0: ON 1: OFF 0: Disabled 1: Enabled 3 PC power-off recognition time 0: Normal 1: Long 4 Not used. 5 Escape from phase C 0: Yes 1: No No. 6 7 8 0 0 0 : 0 ( - Brother International 1920CN | Service Manual - Page 158
Yes Not used. l Selector 1: Printout of the stored image data of an unsent document onto an error report This selector determines whether or not the 1st-page image data of a document will be printed out subsequent in-memory message transmission only when recording paper or toner runs out. V - 46 - Brother International 1920CN | Service Manual - Page 159
transmission speed at fallback each Automatic control of modem's EQM gain for proper transmission speed choice Redialing when a communications error occurs Not used. Setting and Specifications No. 1 2 0 X Automatic 1 0 : Fixed to 4 points 1 1 : Fixed to 16 points 0: Normal - 7 db 1: Normal 0: 2400 - Brother International 1920CN | Service Manual - Page 160
Selector No. 1 | 4 5 | 8 WSW39 (Function setting 17) Function First transmission speed choice for fallback Last transmission speed choice for fallback Setting and Specifications No. 1 2 3 4 No. 5 6 7 8 0 0 0 0 : 2400 bps 0 0 0 1 : 4800 bps 0 0 1 0 : 7200 bps 0 0 1 1 : 9600 bps 0 1 0 0 : 12000 bps - Brother International 1920CN | Service Manual - Page 161
WSW40 (Function setting 18) Selector No. 1 2 Function Not used. 3 Masking of symbol rate(s) | 8 Setting and Specifications Not masking Masking No. 3 0 1 No. 4 0 1 No. 5 0 1 No. 6 0 1 No. 7 - - No. 8 0 1 3429 symbols/sec 3200 symbols/sec 3000 symbols/sec 2800 symbols/sec - Brother International 1920CN | Service Manual - Page 162
Selector No. 1 | 4 5 | 8 WSW41 (Function setting 19) Function Setting and Specifications Not used. Modem attenuator No. 5 6 7 8 0000: 0001: 0010: 0011: 0100: | 1111: -10 dBm -11 dBm -12 dBm -13 dBm -14 dBm | -25 dBm NOTE: WSW41 takes effect only in the V. 34 mode. l Selectors 5 through 8: - Brother International 1920CN | Service Manual - Page 163
sheet will be printed out when the corona wire abnormally emits ions. The sheet prompts the user to clean the corona wire of the laser-sensitive drum. l Selector 7: Issue of a drum cleaning prompting sheet when the specified number of pages has been printed This selector determines whether or not - Brother International 1920CN | Service Manual - Page 164
Selector No. 1 2 3 4 5 6 | 8 WSW43 (Function setting 21) Function Addition of a header (station ID) to FAX images to be sent to PCs having e-mail addresses Wait time for PCFax reception (Class 2) and FPTS command transmission Detection time of 2100 Hz CED or ANSam Setting and Specifications 0: - Brother International 1920CN | Service Manual - Page 165
[ B ] Printout of firmware switch data n Function The machine prints out the setting items and contents specified by the firmware switches. n Operating Procedure (1) Press the 1 key twice in the initial stage of the maintenance mode. The "PRINTING" will appear on the LCD. (2) The machine prints out - Brother International 1920CN | Service Manual - Page 166
3.6 Operational Check of LCD n Function This function allows you to check whether the LCD on the control panel works normally. n Operating Procedure (1) Press the 1 and 2 keys in this order in the initial stage of the maintenance mode. The LCD shows (2) For machines w/ fax: Press the Start key. Each - Brother International 1920CN | Service Manual - Page 167
MFC9600 DCP1200 MFC9850/9870 MFC9750 Key & Button Entry Order V - 55 - Brother International 1920CN | Service Manual - Page 168
rear sensor, cover sensor, registration sensor, toner sensor, paper ejection sensor, manual insertion sensor, and cassette sensor--operate Manual insertion sensor CS Cassette sensor C2 2nd cassette sensor* No paper detected. No paper cassette loaded. No paper cassette loaded. (*These error - Brother International 1920CN | Service Manual - Page 169
scanned. If no error is noted, the machine returns to the initial stage of the maintenance mode. If any error is noted, the "SCANNER ERROR" will appear settings. The customizing codes list is given in Appendix 1. NOTE: If you replace the main PCB, be sure to carry out this procedure. n Operating - Brother International 1920CN | Service Manual - Page 170
of erasure, the machine will automatically return to the initial stage of the maintenance mode. 3.12 Machine Error Code Indication n Function This function displays an error code of the last error on the LCD. n Operating Procedure (1) Press the 8 and 2 keys in this order in the initial stage of - Brother International 1920CN | Service Manual - Page 171
service personnel to receive the transmission log of the user's machine at a remote location and use it for analyzing problems arising in the user's machine. n Operating Procedure (1) If the user's machine has a transmission-related problem, call the user will lose passwords previously entered - Brother International 1920CN | Service Manual - Page 172
CHAPTER VI. ERROR INDICATION AND TROUBLESHOOTING - Brother International 1920CN | Service Manual - Page 173
VI. ERROR INDICATION AND TROUBLESHOOTING CONTENTS 1. ERROR INDICATION VI-1 1.1 Machine Errors VI-1 [ 1 ] Error messages on the LCD VI-1 [ 2 ] Error codes shown in the "MACHINE ERROR X X" message VI-4 1.2 Communications Errors (Not applicable to machines w/o fax VI-6 2. TROUBLESHOOTING VI-16 - Brother International 1920CN | Service Manual - Page 174
To help the user or the service personnel promptly locate the cause of a problem (if any), the machine incorporates the self-diagnostic functions which display error messages for machine errors and communications errors. (Note that machines w/o fax do not support error messages for communications - Brother International 1920CN | Service Manual - Page 175
ON.) "XX" indicates an error code. Refer to [ 2 ] on pages VI-4 and VI-5. In either of the following cases, this message appears, prompting the user to clean the corona wire of the lasersensitive drum. - When the specified number of pages has been printed after the replacement of the laser-sensitive - Brother International 1920CN | Service Manual - Page 176
Messages on the LCD PLS OPEN COVER PRINTER JAM SCANNER ERROR TONER EMPTY TONER LOW Probable Cause To display the relating detailed error code, use maintenancemode function code 82. (Refer to Chapter V, Section 3.12.) If this message appears, open and close the front cover. The message may disappear - Brother International 1920CN | Service Manual - Page 177
Beam Detect signal. ) No toner cartridge loaded. ) Toner empty. ) In-casing temperature error. ) Heater harness disconnected or error on the main PCB. ) Engine PCB error. ) Paper size setting error. ) Paper feeding error. ) Paper jam. The registration sensor, 2nd registration sensor, and/or manual - Brother International 1920CN | Service Manual - Page 178
( AF ( B1 ( B2 ( B3 ( B4 ( B7 ( B8 ( BA ( BB ( BC ( BD ( BE ( BF ( D5 ( E4 E6 ( E8 ( EA ( F5 ( F6 Error factor The CCD HP sensor sticks to OFF, indicating that the CCD unit has not returned to the home position. ) The CCD HP sensor sticks to ON, indicating that the CCD - Brother International 1920CN | Service Manual - Page 179
(Not applicable to machines w/o fax) If a communications error occurs, the machine emits an audible alarm (intermittent beeping) for approximately 4 seconds, displays the corresponding error message, and prints out the transmission verification report if the machine is in sending operation. VI - Brother International 1920CN | Service Manual - Page 180
05 06 07 10 Causes Wrong number called. Retrieval file error. Image data entry error. No dial tone detected before start of dialing. Busy tone the calling station in receiving. 1A 01 Calling impossible due to memory full. *Available in German versions only. (2) Command reception Code 1 20 - Brother International 1920CN | Service Manual - Page 181
command not received. Unable to reserve a command receiver memory. Image data file error. (3) Compatibility [checking the NSF and DIS] Code 1 32 32 Code . 32 10 Remote terminal not equipped with password function or its password switch OFF. 32 11 Remote terminal not instruction. VI - 8 - Brother International 1920CN | Service Manual - Page 182
(4) Instructions received from the remote terminal [checking the NSC, DTC, NSS, and DCS] Code 1 40 40 Code 2 02 03 Causes Illegal coding and DIS after transmission of NSS and DCS] Code 1 50 Code 2 01 Causes Vertical resolution capability changed after compensation of background color. VI - 9 - Brother International 1920CN | Service Manual - Page 183
(6) ID checking Code 1 63 63 63 63 63 63 Code 2 01 02 03 04 05 06 Causes Password plus "lower 4 digits of telephone number" not coincident. Password not coincident. Polling ID not coincident. Entered confidential mail box ID uncoincident with the mail box ID. Relay broadcasting ID not coincident. - Brother International 1920CN | Service Manual - Page 184
at the final transmission speed for fallback. Receive buffer empty. (5-second time-out) Receive buffer full during operation except receiving into memory. Decoding error continued on 500 lines. Decoding error continued for 10 seconds. Timeout: Five seconds or more for one-line transmission. RTC not - Brother International 1920CN | Service Manual - Page 185
during turn-around transmission due to call reservation. PC interface error. Transmission canceled by pressing the Stop key (before completion of key (after completion of the G3 FAX negotiation). Transmission canceled due to a scanning error. (12) Transmission in V. 34 mode Code 1 C0 C0 C0 C0 Code - Brother International 1920CN | Service Manual - Page 186
B1 B2 B3 B4 B5 B6 C0 C1 Causes Timeout waiting for INFO0. Checksum error in INFO0. Timeout waiting for tone A or B. Timeout waiting for first Timeout waiting for turning off the CC. Retraining forced for problems not fixed in phase 2. Problem with S-sequence of HDX-resync. FED turned off in the - Brother International 1920CN | Service Manual - Page 187
3. Timeout waiting for S-Sbar in phase 3. Timeout waiting for S-Sbar in phase 3. Timeout waiting for S in phase 3. Training after TRN failure. Problem with S-sequence in phase 4. FED turned off in S-sequence in phase 4. S-sequence finished before prediction in phase 4. Timeout waiting for S-Sbar in - Brother International 1920CN | Service Manual - Page 188
(14) Machine error Code 1 FF FF Code 2 00 FF Causes Burn-in operation canceled by pressing the Stop key. Unrecoverable MODEM error. VI - 15 - Brother International 1920CN | Service Manual - Page 189
This section gives the service personnel some of the troubleshooting procedures to be followed if an error or malfunction occurs with the machine. It is impossible to anticipate all of the possible problems which may occur in future and determine the troubleshooting procedures, so this section - Brother International 1920CN | Service Manual - Page 190
(3) All cables and harnesses are firmly connected. (4) None of the fuses are blown. Recording paper Check that: (1) A recommended type of recording paper is used. (2) The recording paper is not dampened. VI - 17 - Brother International 1920CN | Service Manual - Page 191
2.4 Troubleshooting Procedures [ 1 ] Control panel related Trouble (1) LCD shows nothing. (2) Control panel inoperative. PCB and main PCB l Control panel PCB l FPC key l Main PCB [ 2 ] Telephone related Trouble (1) No phone call can be made. (2) Speed dialing or one-touch dialing will not work. (3) - Brother International 1920CN | Service Manual - Page 192
l Main PCB l NCU PCB Check: [ 4 ] Paper/document feeding related Trouble (1) Neither "COPY: PRESS COPY" nor "FAX: NO. & START" message motor l Paper loaded in the paper cassette(s) l Paper cassette(s) l Drum unit l Heat-fixing unit l Drive gear ASSY l Engine PCB l Main PCB l Separation pad on the - Brother International 1920CN | Service Manual - Page 193
the main PCB. l Replace the laser unit. l Replace the high-voltage power supply PCB. (2) All black At the scanner Check the following components: - CCD flat cable - CCD unit - Main PCB At the printer side l Clean the high-voltage contacts for the grid and charger on the drum unit, main cover, and - Brother International 1920CN | Service Manual - Page 194
Check the following components: - CCD unit - Main PCB At the printer side l Replace the toner cartridge with a new one and print 4 to 5 pages. If the problem persists, proceed to the next step. l Remove the toner cartridge and start printing. If printing takes place, clean the toner sensors (LED and - Brother International 1920CN | Service Manual - Page 195
wire cleaner is returned to its home position. l Replace the toner cartridge. l Replace the drum unit. l Replace the heat-fixing unit. At the printer side l Clean the laser beam window (glass) on the laser unit. l Replace the laser unit. (7) Black and blurred horizontal stripes (8) Horizontal lines - Brother International 1920CN | Service Manual - Page 196
Trouble (9) White vertical streaks (10) White horizontal stripes Action to be taken At the scanner Check the following components: - CCD unit At the printer side l Clean the laser beam window on the laser unit. l Replace the toner cartridge. l Replace the drum unit. At the printer side l Replace - Brother International 1920CN | Service Manual - Page 197
flat cable on the main PCB. l Replace the laser unit. At the printer side l Check that the machine is placed on a flat surface. l Shake the toner cartridge horizontally. If the problem persists, replace it. l Clean the laser beam window (glass) on the laser unit. l Replace the laser unit. VI - 24 - Brother International 1920CN | Service Manual - Page 198
fixing unit. l Replace the drum unit. l Replace the high-voltage power supply PCB. At the printer side l Instruct the user to use paper of the recommended weight (less than 36 lb./m2). l Clean the toner sensors (LED and light-receiver). l Replace the toner cartridge. l Replace the drum unit. l Check - Brother International 1920CN | Service Manual - Page 199
weight (less than 36 lb./m2). l Clean the toner sensors (LED and light-receiver). l Check the toner sensor harnesses. l Replace the toner cartridge. l Replace the drum unit. l Replace the high-voltage power supply PCB. At the printer side l Instruct the user to use paper of the recommended weight - Brother International 1920CN | Service Manual - Page 200
Location of High-voltage Contacts and Grounding Contacts VI - 27 - Brother International 1920CN | Service Manual - Page 201
VI - 28 - Brother International 1920CN | Service Manual - Page 202
MFC9600/DCP1200 MFC9750/MFC9850/MFC9870 Appendix 1. EEPROM Customizing Codes - Brother International 1920CN | Service Manual - Page 203
EEPROM Customizing Codes This function allows you to customize the EEPROM according to language, function settings, and firmware switch settings. n Operating Procedure (1) For machines w/ fax: American models: To make the equipment enter the maintenance mode, press the Function, *, 2, 8, 6, and 4 - Brother International 1920CN | Service Manual - Page 204
- Versions Germany U.K. France Norway Belgium Netherlands Switzerland Ireland Denmark Austria Spain Italy Sweden MFC9750 0003 0004 0005 0007 0008 0009 0010 0015 0016 0026 Model MFC9850 0003 - 0005 - MFC9870 0003 0004 0005 0007 0008 0009 0010 0004 0003 0015 0016 0026 - Brother International 1920CN | Service Manual - Page 205
MFC9600/DCP1200 MFC9750/MFC9850/MFC9870 Appendix 2. Circuit Diagrams A. Main PCB B. Engine PCB C. Network Control Unit (NCU) PCB D. Control Panel PCB E Relay PCB F. Power Supply PCBs - Brother International 1920CN | Service Manual - Page 206
A Main PCB 1/7 - Brother International 1920CN | Service Manual - Page 207
A Main PCB 2/7 - Brother International 1920CN | Service Manual - Page 208
A Main PCB 3/7 - Brother International 1920CN | Service Manual - Page 209
A Main PCB 4/7 - Brother International 1920CN | Service Manual - Page 210
A Main PCB 5/7 - Brother International 1920CN | Service Manual - Page 211
A Main PCB 6/7 - Brother International 1920CN | Service Manual - Page 212
A Main PCB 7/7 - Brother International 1920CN | Service Manual - Page 213
B Engine PCB - Brother International 1920CN | Service Manual - Page 214
C NCU PCB (U.S.A./Canada) - Brother International 1920CN | Service Manual - Page 215
NCU PCB C (Germany/United Kingdom/France/Norway/Belgium/ Netherlands/Switzerland/Ireland/Denmark/Austria/ Spain/Italy/Sweden) - Brother International 1920CN | Service Manual - Page 216
1 2 S A E L I NE C9 () () CH2 () F L 5 R2 0 0 PN X2 E PL S 1 + 4 B 2 3 +5V ( ) 1 4 J W1 8 ( 5) J W1 7 ( 10) (D A S T 2 3 J P4 ) ( ) C 1 2 F L 5 R2 0 0 PN X2 3 4 S0 V D 1 2 + - + - 3 4 5 6 + C C C J W1 4 ( 10) C + 1 - M E B J W1 3 M ( 10) B J W1 2 ( - Brother International 1920CN | Service Manual - Page 217
C NCU PCB (Asia) - Brother International 1920CN | Service Manual - Page 218
Control Panel PCB D (MFC9600/MFC9850/MFC9870) - Brother International 1920CN | Service Manual - Page 219
Control Panel PCB 1/2 D (DCP1200/MFC9750) - Brother International 1920CN | Service Manual - Page 220
Control Panel PCB 2/2 D (DCP1200/MFC9750) - Brother International 1920CN | Service Manual - Page 221
E Relay PCB - Brother International 1920CN | Service Manual - Page 222
F Power Supply PCB (100-120V) Low-voltage power supply - Brother International 1920CN | Service Manual - Page 223
F Power Supply PCB (200-240V) Low-voltage power supply - Brother International 1920CN | Service Manual - Page 224
F Power Supply PCB High-voltage power supply - Brother International 1920CN | Service Manual - Page 225
Jan. '00 SM8C5401, Printed in Japan - Brother International 1920CN | Service Manual - Page 226
MULTI-FUNCTION CENTER PARTS REFERENCE LIST MODEL: MFC9750 / MFC9850 / MFC9870 (For Germany / United Kingdom / France / Norway / Belgium / Netherlands / Switzerland / Ireland / Denmark / Austria / Spain / Italy / Sweden) - Brother International 1920CN | Service Manual - Page 227
© Copyright Brother 1999 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 prior notice. - Brother International 1920CN | Service Manual - Page 228
REF.NO. CODE Q' TY DESCRIPTION REMARKS 2. Parts change will be informed by the technical information. Germany ----- GER United Kingdom ------ UK France ------ FRA Norway ------ NOR Belgium ------ BEL Netherlands ------ NLD Switzerland ------ CHE Ireland ------ IRE Denmark ------ DEN Austria - Brother International 1920CN | Service Manual - Page 229
- Brother International 1920CN | Service Manual - Page 230
5 1 DESCRIPTION MAIN MOTOR ASSY TAPTITE, CUP S M3X6 SOLENOID SCREW, BIND M3X4 FRONT COVER LINK TONER SENSOR (LED) PCB TAPTITE, CUP S M3X6 THERMISTOR FILM IN CASING TEMPERATURE THERMISTOR FAN TONER SENSOR (RECEIVER) PCB PAPER EJECTION SENSOR PCB TAPTITE, CUP S M3X6 RUBBER FOOT 2ND CASSETTE RELAY PCB - Brother International 1920CN | Service Manual - Page 231
- Brother International 1920CN | Service Manual - Page 232
List2(LASER UNIT) REF.NO. 1 2 CODE LJ4157001 087321615 Q'TY 1 LASER UNIT SUPPLY ASSY 3 TAPTITE, CUP S M3X16 DESCRIPTION REMARKS MFC9750, MFC9850, MFC9870 - Brother International 1920CN | Service Manual - Page 233
- Brother International 1920CN | Service Manual - Page 234
LJ4843001 Q'TY 1 1 1 1 1 1 1 1 DESCRIPTION JOINT PAPER FEED ROLLER ASSY PAWLED BUSHING PAPER PICKUP ROLLER PAWLED BUSHING CONDUCTIVE BUSHING ELECTRODE SPRING OUTER CHUTE 1 SUPPLY ASSY REMARKS MFC9750, MFC9850, MFC9870 - Brother International 1920CN | Service Manual - Page 235
- Brother International 1920CN | Service Manual - Page 236
1-5 1-6 CODE LJ4181001 UL9078001 UL9079001 U73515001 UL9083001 UL9084001 UL9090001 Q'TY 1 1 1 2 1 1 1 DESCRIPTION PAPER CASSETTE, A4 SUPPLY ASSY SIDE GUIDE L SIDE GUIDE R SCREW, PAN CUP B M2.6X5 PAPER REAR GUIDE SEPARATION PAD SUPPORT ASSY SEPARATION PAD SPRING REMARKS MFC9750, MFC9850, MFC9870 - Brother International 1920CN | Service Manual - Page 237
- Brother International 1920CN | Service Manual - Page 238
LJ4169001 LJ4163001 UL8918001 087320815 LJ4740001 Q'TY 1 1 1 1 1 1 1 2 DESCRIPTION HEAT FIXING UNIT, 230V SUPPLY ASSY THERMISTOR ASSY TAPTITE, CUP B M3X12 HEAT ROLLER SUPPLY ASSY FUSER LAMP, 230V SUPPLY ASSY PRESSURE ROLLER TAPTITE, CUP S M3X8 SHOULDER SCREW REMARKS MFC9750, MFC9850, MFC9870 - Brother International 1920CN | Service Manual - Page 239
- Brother International 1920CN | Service Manual - Page 240
WASHER) M4X10 SCANNER MOUNT, WHITE(1495) EXIT ROLLER ASSY ANTI-STATIC BRUSH ZL SPEAKER UNIT TAPTITE, BIND S M3X8 TAPTITE, CUP S M3X10 NOT USE SHOULDER SCREW UPPER REAR COVER CHASIS GROUNDING WIRE, MFC9850/9870 MJ COVER, EXT, MFC9850/9870 FOR GER/UK/FRA/BEL/NLD/DEN/AUT/ITA/SWE REMARKS MFC9750 - Brother International 1920CN | Service Manual - Page 241
- Brother International 1920CN | Service Manual - Page 242
) M3X6 CCD HP SENSOR CCD HP SENSOR HARNESS PANEL-MAIN HARNESS CCD IDLE PULLEY HOLDER ASSY CCD UNIT SUPPLY ASSY CCD FLAT CABLE CCD DRIVE BELT CCD LOCK COMPRESSION SPRING TAPTITE, PAN B M3X10 TAPTITE, CUP B M4X12 HARNESS SUPPORT TAPTITE, CUP B M3X8 FLAT CORE (CCD) REMARKS MFC9750, MFC9850, MFC9870 - Brother International 1920CN | Service Manual - Page 243
- Brother International 1920CN | Service Manual - Page 244
4 1 2 2 1 2 4 1 3 1 1 2 2 1 1 1 2 1 2 2 1 1 1 2 6 1 1 2 1 1 DESCRIPTION ADF UNIT SUPPLY ASSY DOCUMENT SENSOR PCB DOCUMENT SENSOR HARNESS DOCUMENT FRONT SENSOR ACTUATOR WHITE(1495) TAPTITE, CUP S M3X8 PLASTIC RETAINING RING ADF SUPPORT TAPTITE, CUP B M3X8 DOCUMENT TRAY, WHITE(1495) DOCUMENT SPONGE - Brother International 1920CN | Service Manual - Page 245
- Brother International 1920CN | Service Manual - Page 246
List9(CONTROL PANEL MFC9750) REF.NO. 1 1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 2 2 2 2 2 2 2 3 CODE LE1686001 LE1336001 LJ4283001 LJ4231002 LJ4284001 LJ4285001 LE1577001 UG4552000 LE1556001 087270815 087310615 LE1483001 LE1490001 LE1493001 LE1494001 LE1501001 LE1499001 LE1503001 087310615 Q'TY 1 - Brother International 1920CN | Service Manual - Page 247
- Brother International 1920CN | Service Manual - Page 248
NOR PANEL SHEET-2, MFC9870 FOR DEN PANEL SHEET-2, MFC9870 FOR SPA PANEL SHEET-2, MFC9870 FOR ITA PANEL SHEET-2, MFC9870 FOR SWE LCD SHEET MFC9850 FOR GER LCD SHEET MFC9850 FOR FRA LCD SHEET MFC9870 FOR GER/AUS LCD SHEET MFC9870 FOR UK/BEL/NLD/CHE/IRE LCD SHEET MFC9870 FOR FRA LCD - Brother International 1920CN | Service Manual - Page 249
- Brother International 1920CN | Service Manual - Page 250
LE1365001 087320616 084320815 0A5350606 085411215 Q'TY 1 1 1 1 1 1 1 5 1 1 4 DESCRIPTION MAIN PCB SUPPLY ASSY, MFC9870 MAIN PCB SUPPLY ASSY, MFC9850 MAIN PCB SUPPLY ASSY, MFC9750 NCU PCB ASSY, MFC9850/9870 LOW VOLTAGE POWER SUPPLY PCB, 230V HIGH VOLTAGE POWER SUPPLY PCB, SUPPLY ASSY ENGINE PCB - Brother International 1920CN | Service Manual - Page 251
- Brother International 1920CN | Service Manual - Page 252
FOR CHE AC CORD, MFC9870 FOR DEN INTERFACE CABLE MFC9750 FOR GER/UK, MFC9850 FOR UK, MFC9870 FOR GER/UK/IRE/AUS CD-ROM ASSY, MFC9750/9850 CD-ROM ASSY, MFC9870 TELEPHONE LINE CORD, MFC9850/9870 FOR GER TELEPHONE LINE CORD, MFC9850/9870 FOR FRA TELEPHONE LINE CORD, MFC9870 FOR UK TELEPHONE LINE CORD - Brother International 1920CN | Service Manual - Page 253
INCLUDING OPERATION MANUAL(1-1), MFL MANUAL(1-2), WARRANTY CARD) OWNER'S MANUAL ASSY, FAX9870 FOR SPA (INCLUDING OPERATION MANUAL(1-1), MFL MANUAL(1-2), 2 WARRANTY CARDS) OWNER'S MANUAL ASSY, FAX9870 FOR ITA (INCLUDING OPERATION MANUAL(1-1), MFL MANUAL(1-2), WARRANTY CARD) MFC9750, MFC9850, MFC9870 - Brother International 1920CN | Service Manual - Page 254
MFC9750 FOR DEN OWNER'S MANUAL, MFC9750 FOR SPA OWNER'S MANUAL, MFC9750 FOR ITA OWNER'S MANUAL, MFC9750 FOR SWE OWNER'S MANUAL, MFC9850 FOR GER OWNER'S MANUAL, MFC9850/9870 FOR FRA OPERETION MANUAL, MFC9870 FOR GER/AUS OPERATION MANUAL, MFC9870 FOR UK/IRE OPERATION MANUAL, MFC9870 FOR NOR OPERATION - Brother International 1920CN | Service Manual - Page 255
LJ4546001 Q'TY 1 1 1 1 1 1 1 1 DESCRIPTION CARTON, BROTHER MFC9750 CARTON, BROTHER MFC9850 CARTON, BROTHER MFC9870 STYROFOAM ASSY POLY-ETHYLENE BAG FOR MACHINE, 1000X1000 EXCEPT FOR FRA POLY-ETHYLENE BAG FOR MACHINE, 1000X1000 FOR FRA CARTON FOR MANUAL BAG FOR DRUM/TONER, 400X480 REMARKS MFC9750 - Brother International 1920CN | Service Manual - Page 256
PL8C5433 Ver. D - Brother International 1920CN | Service Manual - Page 257
MULTI-FUNCTION CENTER PARTS REFERENCE LIST MODEL: DCP1200 / MFC9600 (For U.S.A / Canada Australia / New Zealand / Asia / Gulf ) - Brother International 1920CN | Service Manual - Page 258
© Copyright Brother 1999 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 prior notice. - Brother International 1920CN | Service Manual - Page 259
NOTES FOR USING THIS PARTS REFERENCE LIST 1. In the case of ordering parts, it needs mentioning the following items: (1) Code (2) Q' ty (3) Description Note: No orders without Parts Code or Tool No. can be accepted. [Example] (1) (2) (3) REF.NO. CODE Q' TY DESCRIPTION REMARKS 2. Parts - Brother International 1920CN | Service Manual - Page 260
- Brother International 1920CN | Service Manual - Page 261
1 1 DESCRIPTION MAIN MOTOR ASSY TAPTITE, CUP S M3X6 SOLENOID SCREW, BIND M3X4 FRONT COVER LINK TONER SENSOR (LED) PCB TAPTITE, CUP S M3X6 THERMISTOR FILM IN CASING TEMPERATURE THERMISTOR FAN TONER SENSOR (RECEIVER) PCB PAPER EJECTION SENSOR PCB TAPTITE, CUP S M3X6 RUBBER FOOT 2ND CASSETTE RELAY PCB - Brother International 1920CN | Service Manual - Page 262
- Brother International 1920CN | Service Manual - Page 263
List2(LASER UNIT) REF.NO. 1 2 CODE LJ4157001 087321615 Q'TY 1 LASER UNIT (SP) 3 TAPTITE, CUP S M3X16 DESCRIPTION REMARKS MFC9600, DCP1200 - Brother International 1920CN | Service Manual - Page 264
- Brother International 1920CN | Service Manual - Page 265
List3(PAPER TRANSPORT) REF.NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 CODE UL9059001 UL9060001 UL9062001 UL9066001 UL9062001 UL9069001 LJ4499001 LJ4843001 LJ5591001 UL9070001 UL8985001 LJ5705001 UL8985001 Q'TY 1 1 1 1 1 1 1 1 1 1 1 1 1 DESCRIPTION JOINT PAPER FEED ROLLER ASSY PAWLED BUSHING PAPER PICKUP - Brother International 1920CN | Service Manual - Page 266
- Brother International 1920CN | Service Manual - Page 267
UL9083001 UL9084001 UL9090001 Q'TY 1 1 1 1 2 1 1 1 DESCRIPTION PAPER CASSETTE ASSY, LEGAL FOR US/CSA (SP) PAPER CASSETTE ASSY, A4 FOR ARL/NZ/ASA/GUL (SP) SIDE GUIDE L SIDE GUIDE R SCREW, PAN CUP B M2.6X5 PAPER REAR GUIDE SEPARATION PAD SUPPORT ASSY SEPARATION PAD SPRING REMARKS MFC9600, DCP1200 - Brother International 1920CN | Service Manual - Page 268
- Brother International 1920CN | Service Manual - Page 269
087320815 LJ4740001 Q'TY 1 1 1 1 1 1 1 1 2 8 8 2 2 2 1 4 1 1 2 1 1 2 DESCRIPTION HEAT FIXING UNIT, 115V FOR US/CAN (SP) HEAT FIXING UNIT, 230V FOR ARL/NZ/ASA/GUL (SP) THERMISTOR ASSY TAPTITE, CUP B M3X12 HEAT ROLLER SUPPLY ASSY FUSER LAMP, 115V FOR US/CAN (SP) FUSER LAMP, 230V FOR ARL/NZ/ASA/GUL - Brother International 1920CN | Service Manual - Page 270
- Brother International 1920CN | Service Manual - Page 271
) TRAY COVER ADHESIVE TAPE REAR COVER, WHITE(1495) SCREW, PAN (S/P WASHER) M4X10 SCANNER MOUNT, WHITE(1495) EXIT ROLLER ASSY ANTI-STATIC BRUSH SPEAKER UNIT TAPTITE, BIND S M3X8 TAPTITE, CUP S M3X10 TAPTITE, CUP S M3X6, MFC9600 FOR US/CAN SHOULDER SCREW UPPER REAR COVER TAPTITE, CUP B M4X12 SHOULDER - Brother International 1920CN | Service Manual - Page 272
- Brother International 1920CN | Service Manual - Page 273
List7(SCANNER UNIT) REF.NO. 1 1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 1-11 1-12 1-13 1-14 1-15 2 3 CCD IDLE PULLEY HOLDER ASSY CCD UNIT (SP) CCD FLAT CABLE CCD DRIVE BELT CCD LOCK COMPRESSION SPRING TAPTITE, PAN B M3X10 TAPTITE, CUP B M4X12 MOTOR BRACKET HARNESS SUPPORT TAPTITE, CUP B M3X8 FLAT - Brother International 1920CN | Service Manual - Page 274
- Brother International 1920CN | Service Manual - Page 275
3 4 1 2 2 1 2 4 1 3 1 1 2 2 1 1 1 2 1 2 2 1 1 1 2 6 1 2 2 1 1 DESCRIPTION ADF UNIT (SP) DOCUMENT SENSOR PCB DOCUMENT SENSOR HARNESS DOCUMENT FRONT SENSOR ACTUATOR WHITE(1495) TAPTITE, CUP S M3X8 PLASTIC RETAINING RING ADF SUPPORT TAPTITE, CUP B M3X8 DOCUMENT TRAY, WHITE(1495) DOCUMENT SPONGE - Brother International 1920CN | Service Manual - Page 276
- Brother International 1920CN | Service Manual - Page 277
List9(CONTROL PANEL DCP1200) REF.NO. 1 1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 2 3 CODE LE1554001 LE1336001 LJ4283001 LJ4231002 LJ4284001 LJ4285001 LG2326001 UG4552000 LE1556001 087270815 087310615 LE1338001 087310816 Q'TY 1 1 11 1 1 1 1 1 1 2 6 1 3 DESCRIPTION CONTROL PANEL ASSY, WHITE(1495), - Brother International 1920CN | Service Manual - Page 278
- Brother International 1920CN | Service Manual - Page 279
List9(CONTROL PANEL MFC9600) REF.NO. 1 1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 1-11 1-12 1-13 1-14 1-15 1-16 2 3 3 4 4 5 6 CODE LE1527001 LE2273001 UF4393007 LE2274001 LE1340001 UF8174008 UF8174010 UF8174011 UF8176009 UF4576008 UF4576010 UF9118006 LG2138001 UG4552000 LG2190001 087270815 087310615 - Brother International 1920CN | Service Manual - Page 280
- Brother International 1920CN | Service Manual - Page 281
List10(PCB ASSY) REF.NO. 1 1 1 2 2 2 3 3 3 4 5 6 6 7 8 9 CODE LG2320001 LG2226001 LE1627011 LG2139001 LG2311006 LG2305040 LJ8855001 LJ4175001 LG2167001 LE1364001 LG2364001 087320616 087320616 084320815 0A5350606 085411215 Q'TY 1 1 1 1 1 1 1 1 1 1 1 4 5 1 1 4 DESCRIPTION MAIN PCB ASSY, DCP1200 - Brother International 1920CN | Service Manual - Page 282
- Brother International 1920CN | Service Manual - Page 283
List11(ACCESSORIES) REF.NO. 1 1 1 1 2 3 3 3 4 4 4 4 (5) CODE UG6121001 LG2162001 LG2086001 LG2085001 UG4558001 LE1325001 LE1222001 LE7150001 LG3077001 UG1570001 UG3290001 UG3628001 UG3468000 Q'TY 1 1 1 1 1 1 1 1 1 1 1 1 1 DESCRIPTION AC CORD FOR US/CAN AC CORD FOR ARL/NZ/GUL AC CORD, BS, MFC9600 - Brother International 1920CN | Service Manual - Page 284
MANUAL(1-1), MFL MANUAL(1-2), LICENSE GUIDE) OWNER'S MANUAL ASSY, MFC9600 FOR NZ (INCLUDING OWNER'S MANUAL(1-1), MFL MANUAL(1-2), LICENSE GUIDE, WARRANTY CARD) OWNER'S MANUAL ASSY, MFC9600 FOR ASA (INCLUDING OWNER'S MANUAL(1-1), MFL MANUAL(1-2), QUICK REFERENCE GUIDE, LICENSE GUIDE) OWNER'S MANUAL - Brother International 1920CN | Service Manual - Page 285
CARTON, BROTHER DCP1200 FOR US CARTON, BROTHER DCP1200 FOR CAN CARTON, BROTHER DCP1200 FOR GUL CARTON, BROTHER MFC9600 FOR US CARTON, BROTHER MFC9600 FOR CAN CARTON, BROTHER MFC9600 FOR ARL/NZ/ASA STYROFOAM ASSY POLY-ETHYLENE BAG FOR MACHINE, 1000X1000 CARTON FOR MANUAL BAG FOR DRUM/TONER, 400X480 - Brother International 1920CN | Service Manual - Page 286
PL8C5405 Ver. K
MULTI-FUNCTION CENTER
SERVICE MANUAL
MODEL: MFC9600/MFC9850/MFC9870
DCP1200/MFC9750