Brother HL-1040 Manuale Utente

I-4Interface Bi-directional parallelUniversal Serial Bus (USB) (HL-1050 only)RS-422A/RS-232C serial (RS-100M) is optionally available. (HL-1040/1050 o

Appendix 4. Connection Diagram, HL-1050A - 4RS-100MSERIAL I/FP1 CDCC I/FSLIOT SIMMMAIN PCBP2 ENGINE I/FMAINMOTORSUBMOTORFAN1FAN2REGISTRATIONSENSORCOV

CODE UK4007000B48K312CIRNAMEV - 5Appendix 5. Main PCB Circuit Diagram, (HL-820/1020/1040), (1/2)

Appendix 6. Main PCB Circuit Diagram, (HL-820/1020/1040), (2/2)CODE UK4007000B48K312CIRNAMEA - 6

Appendix 7. Main PCB Circuit Diagram, (HL-1050), (1/5)CODE UK4041000B512001CIRNAMEA - 7

Appendix 8. Main PCB Circuit Diagram, (HL-1050), (2/5)CODE UK4041000B512001CIRNAMEA - 8

Appendix 9. Main PCB Circuit Diagram, (HL-1050), (3/5)CODE UK4041000B512001CIRNAMEA - 9

Appendix 10. Main PCB Circuit Diagram, (HL-1050), (4/5)CODE UK4041000B512001CIRNAMEA - 10

Appendix 11. Main PCB Circuit Diagram, (HL-1050), (5/5)CODE UK4041000B512001CIRNAMEA - 11

Appendix 12. Panel Sensor PCB Circuit DiagramCODE UK4010000B48K303CIRNAMEA - 12

Appendix 13. Low-voltage Power Supply PCB Circuit Diagram, HL-820/1020/1040 (110 - 120V)Low-voltage PS Circuit (110 - 120V)NAMEA - 13NLF1 PC2R22TRA1

I-5 2.4 Paper Loading(1) Multi-purpose sheet feeder loadingPaper size: A4, Letter, Legal, B5, A5, A6, and Executive. Other sizes of media thatcan be

Appendix 14. Low-voltage Power Supply PCB Circuit Diagram, HL-820/1020/1040 (220 - 240V)Low-voltage PS Circuit (220 - 240V)NAMEA - 14NLF1PC2R22TRA1Z

Appendix 15. Low-voltage Power Supply PCB Circuit Diagram, HL-1050 (110 - 120V)Low-voltage PS Circuit (110 - 120V)NAMEA - 15NLF1 PC2R22TRA1Z2CN1ABPC

Appendix 16. Low-voltage Power Supply PCB Circuit Diagram, HL-1050 (220 - 240V)Low-voltage PS Circuit (220 - 240V)NAMEA - 16NLF1PC2R22TRA1Z2CN1ABPC1

Appendix 17. High-voltage Power Supply PCB Circuit DiagramHigh-voltage PS CircuitNAMEA - 1743216978541210311PSENSCN1SRCN1TRANSFBCN1TRANSFFCN1R81R87R8

A-18 APPENDIX 18. HOW TO KNOW DRUM UNIT LIFE & PAGE COUNTERIf you want to know the drum unit life or the number of printed pages, you shouldprint

A-19How to Read the Drum LifeThe bar shown below is printed at the bottom of Test Print / PrintConfiguration.It initially indicates 100% and gradually

A-20 APPENDIX 19. DIAMETER / CIRCUMFERENCE OF ROLLERSThe diameter and circumference of each roller are listed below;No. Parts Name Diameter (Circumfe

Apr., '9884U005BE0PARTS REFERENCE LISTMODEL:HL-820/1020/1040/1050RLASER PRINTER

NOTE FOR USING THIS PARTS REFERENCE LIST1. In the case of ordering parts, it needs mentioning the following items:(1) Code(2) Q'ty(3) Description

CONTENTSGENERAL DRAWING ...1MAIN PCB DRAWING (HL-820/1020/1040)...

I-6 2.6 Paper(1) Paper type(a) Normal paper (60 to 157g/m2, specified types of high-quality paper)• A4 size• Letter size• Legal size• B5 (JIS ISO

- 1 -GENERAL DRAWINGMODEL HL-820/1020/1040/1050 84U821/831/832/861/8625-24 5-235-225-125-1411-85-145-165-157-15-25-35-135-95-335-115-115-105-325-

1-1MODEL HL-820/1020 84U-821-101/1046-1. MAIN PCB <HL-820/1020>MODEL HL-1040 84U-831-101/103, 84U-832-1016-2/3. MAIN PCB <HL-1040 O

1-11MODEL HL-1050 84U-861-101/103/104, 84U-862-1066-4/5. MAIN PCB <HL-1050 OTHERS/ISRAEL>- 3 -

POWER CORDS & PACKING DRAWINGMODEL HL-820/1020/1040/1050 84U-821/831/832/861/862-230/9301A10-1B1C1D1E1F1G1H1I1J12-212-212-312-4- 4 -12-1T/I N

1. DRIVE UNIT REF.NO. CODE Q'TY DESCRIPTION REMARK1 UL8747001 1 DRIVE UNIT ASSY (SP)2 087412016 3 TAPTITE, CUP B M4X203 085411215 1 TAP

3. MP SHEET FEEDER REF.NO. CODE Q'TY DESCRIPTION REMARK1 UL8749001 1 MP SHEET FEEDER ASSY (SP)1 UL8832001 1MP SHEET FEEDER ASSY (LEGEND)

5. COVERS REF.NO. CODE Q'TY DESCRIPTION SYMBOL REMARK1 UL7983001 1 MAIN COVER ASSY2 085411215 1 TAPTITE, BIND B M4X12 3 085411215 1

6-1. MAIN PCB <HL-820/1020> REF.NO. CODE Q'TY DESCRIPTION SYMBOL REMARK1-1 UK4202001 1 MAIN PCB ASSY, HL-820 (SP) B48K312-350E 1-

6-4. MAIN PCB <HL-1050 OTHERS> REF.NO. CODE Q'TY DESCRIPTION SYMBOL REMARK1-1 UK4203001 1 MAIN PCB ASSY, HL-1050 100V (SP) B512001-

7. PANEL SENSOR PCB REF.NO. CODE Q'TY DESCRIPTION SYMBOL REMARK1 UK4205001 1 PANEL SENSOR PCB ASSY (SP) B48K303MODEL HL-820/1020/1040/105

I-7 2.7 Effective Printing AreaPrintable areaAECEBDFFThe effective printing area means the area within which the printing of all the datareceived wit

9. HIGH VOLTAGE POWER SUPPLY REF.NO. CODE Q'TY DESCRIPTION REMARK1 UK4122001 1 HIGH-VOLTAGE PS ASSY (SP)MODEL HL-820/1020/1040/1050 84U-821

11. ACCESSORIES REF.NO. CODE Q'TY DESCRIPTION REMARK1 UK4090001 1 PR DRIVER DISK ASSY1, 820 (WINDOWS)1 UK4193001 1 PR DRIVER DISK ASSY1,

12. PACKING MATERIALS REF.NO. CODE Q'TY DESCRIPTION REMARK1 UE2233001 1 CARTON, EUR HL-8201 UE2236001 1 CARTON, CAN HL-10201 UE2239001

RLower Tray Unit for HL-2400CColor Laser PrinterPARTS REFERENCE LISTMODEL: LT-24CLFeb., 199954S003BE0

NOTE FOR USING THIS PARTS REFERENCE LIST1. In the case of ordering parts, it needs mentioning the following items:(1) Code(2) Q'ty(3) Description

CONTENTSLOWER TRAY UNITList...

LOWER TRAY UNIT REF.NO.CODE Q'TY DESCRIPTION REMARK1 UH1948001 1 PAPER SENSOR2 UH1947001 1 PAPER SIZE SENSOR3 UH1996001 1 OHP SENSOR4 UH3494001

- 2 -GENERAL DRAWINGMODEL LT-24CL 54S-X064316527

RLower Tray Unit for HL-2400CColor Laser PrinterSERVICE MANUALMODEL: LT-24CLFeb., 199954S004BE0

© Copyright Brother 1999All rights reserved.No part of this publication may be reproduced in any form or by any means without permission inwriting fro

I-8The table below shows the effective printing areas.Size A B C D E FA 4210.0mm8.27”(2,480 dots)297.0mm11.69”(3,507 dots)203.2mm8.0”(2,400 dots)288.5

PREFACEiPREFACEThis service manual contains basic information required for after-sales service of the optional lowertray unit for color laser printer

CONTENTSiiCONTENTS1. PRODUCT OUTLINE...11.1PARTS NAMES & FUNCTIONS...

REGULATIONSiiiREGULATIONSLASER SAFETY (FOR 110-120 V MODEL ONLY)The printer, HL-2400C is certified as a Class I laser product under the U.S. Departmen

REGULATIONSivIEC 825 SPECIFICATION (FOR 220-240 V MODEL ONLY)The printer, HL-2400C is a Class 1 laser product as defined in IEC 825 specifications. T

SAFETY INSTRUCTIONSvSAFETY INSTRUCTIONSSAFETY PRINCIPLE1) Before starting any operations, read this manual thoroughly. Especially read the safetyinst

SAFETY INSTRUCTIONSviWARNINGHAZARDOUS VOLTAGEMay cause serious injuries or fatal accidents. Voltage is now being suppliedfrom the power supply of prin

SAFETY INSTRUCTIONSviiCAUTIONHAZARDOUS POWDERToner is a fine powder which can cause a powder explosion if disposed of intoa fire. Under no circumstanc

SAFETY INSTRUCTIONSviii<Label Location>1231. Hot Caution LabelAVERTISSEMENTWARNING WARNUNGHot surface.Avoid contact.Heiße oberfiäche.Bei beseiti

PRODUCT OUTLINE- 1 -1. PRODUCT OUTLINE1.1 Parts Names & FunctionsFig. 1No. Parts Name Outline of Function1 Media Cassette To feed paper automatic

SPECIFICATIONS- 2 -2. SPECIFICATIONSNo. Item Specification1 Applicable Printer Brother Color Laser Printer HL-2400C2 Cassette CapacityNormal paper: 25

I-9 3. SAFETY INFORMATION 3.1 Laser Safety (110 - 120V Model only)This printer is certified as a Class 1 laser product under the US Department of

INSTALLATION- 3 -3. INSTALLATION3.1 Conditions Required for InstallationInstallation conditions for the lower tray unit are the same as for the print

INSTALLATION- 4 -3.2 UnpackingFollow the unpacking steps below referring to Fig.3.1) Remove the binding tape from the top of the package.2) Take the

INSTALLATION- 5 -3.3 Installation Procedures3.3.1 Install the printer onto the lower tray unit1) Place the lower tray unit on a solid, flat surface

INSTALLATION- 6 -4) Check the three alignment guide pins on the lower tray unit.Fig. 65) Two people should be used to lift up the printer and place

INSTALLATION- 7 -6) Remove the set-up guides R/L from the unit.Fig. 87) Insert the metal fixtures into both sides of the lower tray unit from above.

INSTALLATION- 8 -3.3.2 Connect the LT signal connector into the printer1) Remove the LT connector cover (U) from the printer.2) Connect the LT sign

INSTALLATION- 9 -3.3.3 Install the covers1) Install the side covers R/L onto both sides of the lower tray unit.Fig. 113.3.4 Relocating the printer

MAINTENANCE- 10 -4. MAINTENANCE4.1 Daily MaintenanceYou need not daily maintenance for the lower tray unit such as cleaning.4.2 Periodic MaintenanceYo

DISASSEMBLY- 11 -5. DISASSEMBLYWhen disassembling the lower tray unit, follow the instructions in the sections below referring to Figure 13;Back cover

DISASSEMBLY- 12 -5.1 Paper Sensor (PEL) / OHP Sensor (OHPL)1) Remove the BT4x8 screw (1 pc.) to remove the back cover (LTU).2) Remove the screws (2

I-10 3.3 Caution for Laser Product (Warnhinweis für Laserdrucker)CAUTION: When the machine during servicing is operated with the cover open, theregul

DISASSEMBLY- 13 -5.4 Paper Feeding Roller / Separation Pad1) Remove the BT4x8 screw (1 pc.) to remove the back cover (LTU).2) Remove the screws (2

DISASSEMBLY- 14 -6. CLEARING PAPER JAMS6.1 Paper Feeding Jam1) Pull out the media cassette (L).2) Remove the paper remaining inside the printer.3)

- 1 -GENERAL DRAWINGMODEL HL-84U821/831/832/861/8625-245-235-225-125-1411-85-145-165-157-15-25-35-135-95-335-115-115-105-325-338-25-185-191-35-35

11. ACCESSORIES PR98235REF.NO.CODE Q'TY DESCRIPTION REMARK1 UK4090001 1 PR DRIVER DISK ASSY1, 820 (WINDOWS)1 UK4193001 1 PR DRIVER DISK ASSY1, 10

5. COVERS PR99041REF.NO.CODE Q'TY DESCRIPTION SYMBOL REMARK1 UL7983001 1 MAIN COVER ASSY2 085411215 1 TAPTITE, BIND B M4X12 3 085411215 1 TAPTI

7. COVERS PR99041REF.NO.CODE Q'TY DESCRIPTION SYMBOL REMARK1 UL7983001 1 MAIN COVER ASSY2 085411215 1 TAPTITE, BIND B M4X12 3 085411215 1 TAPTI

HL1060PL5. FIXING UNITS PR99042REF.NO.CODE Q'TY DESCRIPTION REMARK1-9 UH3164001 1 FIXING UNIT Y, 120V (SP) 1-9 UH3165001 1 FIXING UNIT Y, 230V (

5. FIXING UNITS PR99042REF.NO.CODE Q'TY DESCRIPTION REMARK1-9 UH3164001 1 FIXING UNIT Y, 120V (SP) 1-9 UH3165001 1 FIXING UNIT Y, 230V (SP) 1 U

3. MP SHEET FEEDER PR99042REF.NO.CODE Q'TY DESCRIPTION REMARK1 UL8749001 1 MP SHEET FEEDER ASSY (SP)1 UL8832001 1 MP SHEET FEEDER ASSY (LEGEND) (

6. FIXING UNIT PR99042REF.NO.CODE Q'TY DESCRIPTION REMARK1-11 UL8750001 1 FIXING UNIT, 120V (SP)1-11 UL8751001 1 FIXING UNIT, 230V (SP)1-11 UL883

II-1CHAPTER II THEORY OF OPERATION 1. ELECTRONICS 1.1 General Block Diagram Fig. 2-1 shows a general block diagram of the HL-820/1020 printer.Vid

12. PACKING MATERIALS PR99055REF.NO.CODE Q'TY DESCRIPTION REMARK1 UE2233001 1 CARTON, EUR HL-8201 UE2236001 1 CARTON, CAN HL-10201 UE2239001 1 CA

5. COVERS PR99057REF.NO.CODE Q'TY DESCRIPTION SYMBOL REMARK1 UL7983001 1 MAIN COVER ASSY2 085411215 1 TAPTITE, BIND B M4X12 3 085411215 1 TAPTI

7. COVERS PR99057REF.NO.CODE Q'TY DESCRIPTION SYMBOL REMARK1 UL7983001 1 MAIN COVER ASSY2 085411215 1 TAPTITE, BIND B M4X12 3 085411215 1 TAPTI

Laser Printer HL-800/1000 SeriesQuick Setup GuideRead this guidebook first to set up your printer andprepare your computer for the printer.Save all pa

(For USA & CANADA Only)For technical and operational assistance, please call:In USA 1-800-276-7746 (outside California) / 949-859-9700 Ext. 329 (w

1Table of ContentsAction 1: Check the Supplied items --- 2Action 2: Place the Printer --- 3Action 3: Install the Toner Cartridge/Drum Unit --- 4Act

- 2 -Action 1: Check the Supplied ItemsAfter taking the printer out of the carton and removing the packing materials, make sure thatthe following item

-3-Action 2: Place the printerPlease take note of the following before using the printer.Power SupplyUse the printer within the specified power range.

- 4 -Action 3: Install the Toner Cartridge/Drum Unit1Unpack the drum unit assembly with thetoner cartridge included. Gently shake itfrom side to side

- 5 -Action 4: Load Paper into Your PrinterBefore loading paper, make sure that the paper meets the specification described in the On-line User’s Gui

II-2 Fig. 2-2 shows a general block diagram of the HL-1040 printer.Optional I/F board (Mac. RS-232C)Expansion I/OVideo control blockInterface block

- 6 -4Hold the tab of the right hand paper guideand press the catch to release the guidelock. Move the paper guide to fit the paperwidth.! CAUTIONFail

- 7 -Action 5-1: Connect Your Printer to Your Computers parallelinterfaceYou must connect the printer to your computer with a suitable interface cable

8Action 5-2: Connect Your Printer to Your Computers using the USBinterface ( Only for HL-1050 with Windows 98 )The Universal Serial Bus is an interfa

9Insert the supplied CD-ROM into thedrive of your PC.Select “CD-ROM drive.”Click the Next buttonClick the Next button.The USB driver is installed.When

10TroubleshootingIf the printer does not print from the USB port, try reinstalling the USB driver as follows;1.Double-click the file ‘DeinsUSB.exe’ i

-11 -Action 6: Plug in and Turn on Your Printer1Plug the power cord into the AC poweroutlet and the printer power inlet.✒ NOTEThe shape of the power c

12Printing a Test Sample PageWe recommend that you print a test page. Refer to the instructions below.✒ NOTE The following test page operation will

13Action 7-1: Installation from CD-ROMThe supplied CD-ROM contains the following materials. Printer Driver & TrueType fonts -You need to c

-14 -Action 7-2: Prepare Windows 95/98 for the Printer from floppy disksYou need to configure Windows 95/98 for the printer by installing the printer

- 15 -Action 7-3: Prepare Windows 3.1 for the PrinterYou need to configure Windows 3.1 for the printer by installing the printer driver andTrueTypeTM-

II-3 Fig. 2-3 shows a general block diagram of the HL-1050 printer.Optional RAM (SIMM) (max. 32Mbytes)Optional I/F board (Mac. RS-232C)Expansio

- 16 -Action 7-4: Prepare DOS for the Printer (Only for HL-1040/1050 Users)How to Use the Printer in Your DOS Application Software(without using the W

- 17 -What Does Remote Printer Console Do?The Remote Printer Console (RPC) is a utility program which runs in the DOS environmentand comprises the fol

- 18 -Using the Remote Printer Console Main ProgramType C:\RPCX>RPCX and press theEnter key to start the Remote PrinterConsole main program.The Mai

-19 -Using the Printer Status Monitor ProgramType C:\RPCX>STMX and press the Enter key to make the Printer Status Monitor Programstay resident in y

- 20 -Action 7-5: Prepare Macintosh for the Printer (Only for HL-1040/1050 Users)You need to configure your computer for the printer by installing the

-21 -LAMPS AND SWITCHThis section refers to the following lamps and switch on the printer control panel.DrumAlarmReadyPaperDataToner✒NoteWhen the powe

- 22 -Drum LampThe Drum lamp indicates the drum unit is nearly at the end of its life.Lamp Printer statusOff ❍ The drum unit can be used.On ● The drum

- 23 -Other Control FeaturesSleep ModeWhen the printer does not receive data for a certain period of time (time-out), it enterssleep mode. Sleep mode

- 24 -REPLACING THE TONER CARTRIDGEThe printer can print approximately 2,400 pages (5% coverage: A4/Letter) with one tonercartridge. When the toner ca

-25 - High Temperature WarningAfter you have just used the printer,some internal parts of the printer areextremely hot. When you open the topcover of

© Copyright Brother 1998All rights reserved.No part of this publication may be reproduced in any form or by any means without permission inwriting fro

II-4 1.2 Main PCB Block Diagram Fig. 2-4 shows the block diagram of the main PCB.Reset CircuitProgram + Font ROM512 KbytesRAM(2.0 Mbytes)EEPROM (128

-26 -5 Install the new toner cartridge into the righthand side of the drum unit. Make sure thatthe toner cartridge guide bar is exactlyaligned with th

- 27 -REPLACING THE DRUM UNITThe printer uses a drum unit to create the print images on paper. If the Drum lamp is on, itindicates the drum unit is ne

- 28 - High Temperature WarningAfter you have just used the printer,some internal parts of the printer areextremely hot. When you open the topcover of

-29 -4Install the toner cartridge into the new drumunit.Install the new drum unit into the printer.5Close the top cover.The printer automatically ejec

- 30 -ALARM INDICATIONS AT A GLANCEOperator CallsIf a recoverable error occurs, the printer indicates an ‘operator call’ by blinking the Alarmlamp and

-31-For errors shown below, the printer indicates an operator call by blinking the Alarm lamp. Ifyou use the printer with the supplied Windows driver,

- 32 -Error ActionSerial Interface InputBuffer Overflow (ForHL-1040/1050 Only)Press the panel switch to resume printing.Check the communication p

- 33 -Additional Memory (HL-1050 Only)The HL-820/1020/1040 printers have 2 Mbytes of standard memory and additional memorycannot be fitted.The HL-1050

34Installing the SIMMTo install the SIMM, follow these steps:1 Turn off the power switch and unplug the pcord from the AC outlet. Disconnect the intec

35PRINTER SPECIFICATIONSPrintingPrint Method Electrophotography by semiconductor laser beam scanningLaser Wavelength: 780 nm / Output: 5 mW max.Resol

II-5 Fig. 2-5 shows the block diagram of the main PCB.Reset CircuitProgram + Font ROM512 KbytesRAM(2.0 Mbytes)Option Serial I/O(RS232C & RS422A)E

36FunctionsTrueType Fontson disksTrueType-compatible soft-fonts for Windows on the supplied diskEmulation HL-820/1020:Brother Printing Solution for Wi

REGULATIONSFederal Communications Commission(FCC)Declaration of Conformity (For USA Only)Responsible Party : Brother International Corporation100 Some

IMPORTANT - For Your SafetyTo ensure safe operation the three-pin electrical plug supplied mustbe inserted only into a standard three-pin power point

Shipment of the PrinterIf for any reason you must ship your Printer, carefully package thePrinter to avoid any damage during transit. It is recommende

Please read this manual thoroughly before using the printer.HL-800

TABLE OF CONTENTSCHAPTER 1 INTRODUCTION...1–1ABOUT THE GUIDEBOOKS...

CHAPTER 5 MAINTENANCE...5–1REPLACING THE TONER CARTRIDGE...

Definitions of Warnings, Cautions, and NotesThe following conventions are used in this User’s Guide: WarningIndicates warnings that must be observed t

Shipment of the PrinterIf for any reason you must ship your Printer, carefully package thePrinter to avoid any damage during transit. It is recommende

II-6 Fig. 2-6 shows the block diagram of the main PCB.Reset CircuitProgram + Font ROM4.0 MbytesRAM(4.0 Mbytes)Option RAM (SIMM)(max. 32Mbytes)Option

(For USA & CANADA Only)For technical and operational assistance, please call:In USA 1-800-276-7746 (outside California) 714-859-9700 Ext. 329(

1-1CHAPTER 1 INTRODUCTIONABOUT THE GUIDEBOOKSFinding Out How to Use the PrinterYou have two guidebooks for this printer. Read each guidebook in thefo

1-2ABOUT YOUR PRINTERPrinter OverviewFig. 1-1 Front View ON12345678Fig. 1-2 Rear View✒ NoteAn RS-422A/RS-232C Serial Interface Port, contain

1-3System Requirements in Brother Printing Solution for WindowsCheck the following system requirements to setup and operate the printerin Brother Prin

1-4❏Enhanced Printing Performance and User-Friendly Operation forWindows®The dedicated printer driver and TrueType-compatible fonts forMicrosoft® Wind

1-5❏ Printer Status Monitor with Bi-directional Parallel InterfaceThe printer driver can monitor your printer’s status using bi-directional parallel c

1-6❏ Environment-FriendlyEconomy Printing ModeThis feature will cut your printing cost by saving toner. It is useful toobtain draft copies for proof-r

1-7OPERATING AND STORAGE ENVIRONMENTPlease take note of the following before using the printer.Power SupplyUse the printer within the specified power

1-8Do not subject the printer to strong physical shocks or vibrations.Do not expose the printer to open flames or salty or corrosive gasses.Do not pla

CHAPTER 2 PAPER HANDLING2-1CHAPTER 2 PAPER HANDLINGPAPER SPECIFICATIONSThe printer can handle paper that has the following specifications.Paper Type

II-7 1.3 Main PCB 1.3.1 CPU Core Fig. 2-7 shows the CPU circuit block on the main PCB.The CPU is a Motorola MC68EC000FN16 which is driven with a cl

USER’S GUIDE2-2RemarksIt is recommended that you test paper, especially special sizes and typesof paper and heavy paper, on this printer before purcha

CHAPTER 2 PAPER HANDLING2-3Special PaperBefore using paper with holes such as organizer sheets, you must fan thestack well to avoid paper jams and mis

USER’S GUIDE2-4EnvelopesThe following types of envelopes are not recommended for use.Damaged, curled, wrinkled, or irregularly shaped envelopesExtreme

CHAPTER 2 PAPER HANDLING2-5MULTI-PURPOSE SHEET FEEDERThe printer has a multi-purpose sheet feeder that can feed plain paper,envelopes, transparencies

USER’S GUIDE2-6Loading Paper into the FeederTo load paper into the feeder, follow these steps.1.Open the multi-purpose sheet feeder by gently pulling

CHAPTER 2 PAPER HANDLING2-73.Move the paper guide to the paper width. ( ➀ )!CautionFailure to set the paper guide to the paper size may cause paper sk

USER’S GUIDE2-8Two Side Printing (Manual Duplexing)The supplied printer driver for Windows 95/98 or Windows 3.1 enablesmanual duplex printing. For mor

CHAPTER 2 PAPER HANDLING2-9MANUAL FEED SLOTThe multi-purpose sheet feeder also has a manual feed slot. You canmanually load paper sheet by sheet from

USER’S GUIDE2-10✒ NoteInsert paper firmly into the manual feed slot.Be sure to load sheet by sheet when using the manual feed slot.

CHAPTER 2 PAPER HANDLING2-11OUTPUT TRAY AND PAPER SUPPORT WIREThe printer ejects paper with printed surfaces face down into the outputtray at the fron

II-8 Fig. 2-8 shows the CPU circuit block on the main PCB.The CPU is a Motorola MB86831 which is driven with a clock frequency of 33MHz. TheCPU itse

CHAPTER 3 CONTROL PANEL3-1CHAPTER 3CONTROL PANELLAMPS AND SWITCHThis section refers to the following lamps and switch on the printercontrol panel.Drum

USER’S GUIDE3-2Data (Toner) LampThe Data lamp indicates the current status of the print data process.Lamp Printer statusOff❍The printer has no print d

CHAPTER 3 CONTROL PANEL3-3SwitchThis switch will be used for the following purpose depending on thesituation.Cancel printingIf you press the switch du

USER’S GUIDE3-4Test Print ModeThe printer has the following test print mode. Follow these steps:1.Make sure that the top cover is closed.2.Hold down t

CHAPTER 4 OPTIONS4-1CHAPTER 4 OPTIONSSERIAL INTERFACE BOARD RS-100M (For HL-1040/1050Only)To connect the printer to a DOS computer with a serial inte

USER’S GUIDE4-2If necessary, select the interface type as follows:1. Make sure that the printer is in the off-line state.2. Select the RS-422A(Apple)

CHAPTER 4 OPTIONS4-3If necessary, set the serial interface parameters as follow:1. Make sure that the printer is in the off-line state.2. Set the seri

USER’S GUIDE4-4Table 3: Parity SettingsSelector 5 Selector 6 Parity On On Odd On Off Even Off — None✒NoteThe factory settin

CHAPTER 4 OPTIONS4-5You can connect a parallel and a serial interface cable at the same time.The auto interface selection function allows you to share

USER’S GUIDE4-6ADDITIONAL MEMORY (HL-1050 Only)The HL-820/1020/1040 printers have 2 Mbyte of standard memory andadditional memory cannot be fitted.The

II-9 1.3.2 ASIC The ASIC is composed of a Cell Based IC that contains the following functional blocks.(1) Oscillator circuitGenerates the main clock

CHAPTER 4 OPTIONS4-7✒NoteThe HL-1050 can also support DIB graphics with a resolution of 1200 x600 dpi under Windows 95/98/3.1 with the supplied printe

USER’S GUIDE4-82. Unscrew the screws securing the rear plate of the main controllerboard to the printer and pull out the main controller board.Fig. 4-

CHAPTER 4 OPTIONS4-95. Install the main controller board into the printer by sliding it into theguide rails.6. Secure the main controller board with t

CHAPTER 5 MAINTENANCE5-1CHAPTER 5 MAINTENANCEREPLACING THE TONER CARTRIDGEThe printer can print approximately 2,400 pages (5% coverage:A4/Letter) wit

USER’S GUIDE5-2!CautionKeep the drum unit level after removing the toner cartridge, to avoidpossible toner spill or scatter.Follow these steps to repl

CHAPTER 5 MAINTENANCE5-3 WarningAfter you have just used the printer, some internal parts of theprinter are extremely hot. When you open the top cover

USER’S GUIDE5-43. Remove the old toner cartridge from the drum unit by pulling it outgently.Fig. 5-5 Removing the Old Toner Cartridge!CautionHandle th

CHAPTER 5 MAINTENANCE5-55. Install the new toner cartridge into the right hand side of the drumunit. Make sure that the toner cartridge guide bar is e

USER’S GUIDE5-68. Clean the primary corona wire inside the drum unit by gently slidingthe blue tab to the right and left several times.Fig. 5-9 Cleani

CHAPTER 5 MAINTENANCE5-7REPLACING THE DRUM UNITThe printer uses a drum unit to create the print images on paper. If theDrum lamp is on, it indicates t

II-1090 µsecSTROBEBUSYACKSTROBEBUSYACK0.5 µsec0.5 µsec1.5 µsecCPU Receive ModeDMA Receive ModeBUSY goes HIGH at the falling edge of STROBE. The data (

USER’S GUIDE5-8Follow these steps to replace the drum unit:1. Open the top cover towards you. Remove the old drum unit.Fig. 5-12 Removing the Drum Uni

CHAPTER 5 MAINTENANCE5-9Fig. 5-14 Removing the Toner Cartridge3. Unpack the drum unit and gently shake it five or six timeshorizontally.Fig. 5-15 Shak

USER’S GUIDE5-104. Install the toner cartridge into the new drum unit. For moreinformation, see “REPLACING THE TONER CARTRIDGE” in thischapter.5. Inst

CHAPTER 5 MAINTENANCE5-11CLEANING THE PRINTERClean the printer exterior and interior periodically. If printed pages getstained with toner, clean the p

USER’S GUIDE5-12Cleaning the Printer Interior and Drum UnitClean the printer interior and the drum unit as follows:1.Turn off the power switch and unp

USER’S GUIDE5-144.Gently wipe the scanner window with a soft dry cloth.Fig. 5-22 Cleaning the Scanner Window!CautionDo not touch the scanner window wi

USER’S GUIDE5-146. Clean the primary corona wire inside the drum unit by gently slidingthe tab to the right and left several times.Fig. 5-23 Cleaning

CHAPTER 5 MAINTENANCE5-15RE-PACKING THE PRINTER!CautionWhenever you transport the printer, use the packing materials which areprovided with your print

USER’S GUIDE5-164. Place the drum unit assembly in the plastic bag and seal the bagcompletely.Fig. 5-25 Placing the Drum Unit in the Plastic Bag5. Clo

CHAPTER 6 TROUBLESHOOTING6-1CHAPTER 6 TROUBLESHOOTINGALARM INDICATIONS AT A GLANCEOperator CallsIf a recoverable error occurs, the printer indicates

II-11(11) Engine control I/OThis I/O is used for the connection to the panel sensor PCB. It controls the mainmotor, solenoid, sensors, etc.Fig. 2-9

USER’S GUIDE6-2For errors shown below, the printer indicates an operator call by blinkingthe Alarm lamp. If you use the printer with the supplied Wind

CHAPTER 6 TROUBLESHOOTING6-3Error ActionSerial Interface OverrunError(For HL-1040/1050 Only)Press the panel switch to resume printing.The interface ha

USER’S GUIDE6-4Service CallsIf an unrecoverable error occurs, the printer indicates the need for aservice call by lighting all the lamps and then the

CHAPTER 6 TROUBLESHOOTING6-5PAPER JAMSBefore you can clear a paper jam error, you need to find the location ofthe paper jams. Locate the position refe

USER’S GUIDE6-6!CautionDo not pull jammed paper from the output tray. Be sure to open thetop cover to remove the jam, or the fuser may get dirty with

CHAPTER 6 TROUBLESHOOTING6-7❏Paper Jam near the Drum Unit or at the Paper Output TrayIf a paper jam has occurred near the drum unit, open the top cove

USER’S GUIDE6-8Q & AThis section contains questions and answers for using your printer. If youhave encountered a problem, find the question relati

CHAPTER 6 TROUBLESHOOTING6-9Question RecommendationSometimes I get the memoryFull message. How can Icorrect this?Reduce the print resolution or reduc

USER’S GUIDE6-10Setting Up the Printer for DOS (For HL-1040/1050 Only)Question RecommendationI cannot print from myapplication software.Check if the D

CHAPTER 6 TROUBLESHOOTING6-11Setting Up the Printer for Apple Macintosh Computers When theOptional RS-100M Serial Interface Is Installed into Your Pri

II-12 The ASIC is composed of a Cell Based IC that contains the following functional blocks.(1) Oscillator circuitGenerates the main clock for the CP

USER’S GUIDE6-12PrintingQuestion RecommendationThe printer prints unexpectedlyor it prints garbage.Turn the printer off and on again to reset theprint

CHAPTER 6 TROUBLESHOOTING6-13Question RecommendationThe printer cannot print fullpages of a document. A"MEMORY FULL" errormessage occurs.(Fo

USER’S GUIDE6-14Print Quality!CautionYou will clear a print quality problem by replacing the drum unit with anew one if the Drum lamp is on. The drum

CHAPTER 6 TROUBLESHOOTING6-15Question RecommendationToner scatters and stains theprinted page.Fig. 6-10 Scattering TonerClean the printer interior. Se

USER’S GUIDE6-16Question RecommendationPrinted pages are blurred at thecenter or either edge.Here come Pat-top ,he come. One thing I can tell you is y

CHAPTER 7 APPENDIXA-1CHAPTER 7APPENDIXPRINTER SPECIFICATIONSPrintingPrint Method Electrophotography by semiconductor laser beam scanningLaser Wavelen

USER’S GUIDEA-2First Print 15 seconds (when loading A4 or letter-size paper from themulti-purpose sheet feeder)Print Media Toner cartridge:Life Expect

CHAPTER 7 APPENDIXA-3Memory HL-820/1020/1040 : 2 MBHL-1050: 4 MBExpandable up to 36 MB by installing anindustry standard SIMMDiagnostics Self-diagno

USER’S GUIDEA-4PARALLEL INTERFACE SPECIFICATIONS✒ NoteTo ensure best quality performance use an IEEE 1284 compliant parallelcable between the printer

CHAPTER 7 APPENDIXA-5✒ NoteTo use bi-directional communication, an interface cable which has the pinconnections above must be used.Pin118219342056217

II-1390 µsecSTROBEBUSYACKSTROBEBUSYACK0.5 µsec0.5 µsec1.5 µsecCPU Receive ModeDMA Receive ModeBUSY goes HIGH at the falling edge of the STROBE signal.

USER’S GUIDEA-6UNIVERSAL SERIAL BUS (USB) INTERFACE (HL-1050 only)Interface ConnectorPin AssignmentPin No. Signal1 Vcc (+5V)2 - Data Serial Data -3 +

CHAPTER 7 APPENDIXA-7RESIDENT FONTSThe following bitmapped fonts are resident in this printer.✒NoteHL-820/1020 printer does not have resident fonts i

USER’S GUIDEA-8Intellifont Compatible FontsAlaska (Extrabold)Antique Oakland (Oblique, Bold)Brougham (Oblique, Bold, BoldOblique)Cleveland CondensedCo

CHAPTER 7 APPENDIXA-9SYMBOL SETS/CHARACTER SETSOCR Symbol Sets (HL-1050 Only)When the OCR-A or OCR-B font is selected, the corresponding symbol set i

USER’S GUIDEA-10EPSON Mode ( HL-1040/1050 )US ASCIIPC-8PC-8 D/NPC-850PC-852PC-860PC-863PC-865PC-8 TurkishGermanUK ASCII IFrench IDanish IItalySpanishS

CHAPTER 7 APPENDIXA-11❏HP LaserJet IIP / HP LaserJet 6PThe following table shows characters available only in the correspondingcharacter set. The num

USER’S GUIDEA-12❏HP LaserJet IIP/6P, EPSON FX-850, IBM Propritner XL❏EPSON FX-850

CHAPTER 7 APPENDIXA-13The following table shows characters available only in the correspondingcharacter set. The numbers at the top of the table are

USER’S GUIDEA-14TrademarksThe Brother logo is a registered trademark of Brother Industries, Ltd.Apple, the Apple Logo, and Macintosh are trademarks, r

CHAPTER 7 APPENDIXA-15REGULATIONSThis product is designed for use in a professional environment.Federal Communications Commission(FCC) Declaration of

PREFACEThis service manual contains basic information required for after-sales service of the laser printer(here- in-after referred to as "this m

II-14(11) Engine control I/OThis I/O is used for the connection to the panel sensor PCB. It controls the mainmotor, solenoid, sensors, etc.Fig. 2-10

USER’S GUIDEA-16Radio Interference (220-240 V Model Only)This printer complies with EN55022(CISPR Publication 22)/Class B.Before this product is used,

CHAPTER 7 APPENDIXA-17Declaration of Conformity (For Europe)We, Brother International Europe Ltd., Brother House 1 Tame Street, Guide Bridge,

USER’S GUIDEA-18For Finland and Sweden LUOKAN 1 LASERLAITE KLASS 1 LASER APPARATVaroitus! Laitteen käyttäminen muulla kuin tässä käyttöohjeessa main

CHAPTER 7 APPENDIXA-19IMPORTANT - Wiring Information (For U.K. only)If the power cord supplied with this printer is not suitable for your electrical

INDEXAAlarm lamp ...3–2, 6–1auto-emulation switching...1–4Bbaud rate ...4–3bitma

primary corona wire...5–14printmethod... A–1overrun...6–2quality

II-15 1.3.3 ROM A program file of 512 Kbytes and the font data are stored in the ROM. A 42-pin IC socketis provided: a 16 Mbits ROM (42-pin) is mou

II-16 1.3.4 DRAM A 16M-bit DRAM (x 16bits) is used as the RAM.Fig. 2-13 Two 16M-bit DRAMs (x 16bits) are used as the RAM.Fig. 2-14HL-1050HL-820/102

II-17 1.3.5 Optional RAM A 32bit (72 pin) SIMM can be fitted as optional RAM. The main PCB has one slot and thecapacity of SIMM can be from 1 Mbyte

II-18 1.3.6 Optional Serial I/O The interrupt of the serial I/O is input to the EXINT terminal of the ASIC, and isrecognized by the CPU. A 32-byte

II-19 1.3.8 Reset Circuit The reset IC is a PST598DNR. The reset voltage is 4.2V (typ.) and the LOW period ofreset is 200ms (typ).Fig. 2-19 The res

II-20 Fig. 2-22 shows the CDCC interface circuit.Fig. 2-22HL-1050

II-21 1.3.10 Engine I/O Fig. 2-23 shows the engine interface circuit.Fig. 2-23HL-820/1020/1040

II-22 Fig. 2-24 shows the engine interface circuit.Fig. 2-24HL-1050

II-23 1.3.11 Paper Feed Motor Drive Circuit The motor driver is a TR array. The excitation method is 2-2 phase excitation with abipolar drive.Fig.

iCONTENTSCHAPTER I FEATURES AND SPECIFICATIONS...I-11. FEATURES...

II-24 1.4 Panel Sensor PCBThe following parts are on the panel sensor.• Control Panel...1 Switch, 4 lamps• Connector ...Low-volt

II-25 1.5.2 High-voltage Power SupplyThis generates and outputs the voltages and currents for the charging, development andtransfer functions.Transfe

II-26 2. MECHANICS 2.1 Overview of Printing MechanismFig. 2-29Main MotorScanner UnitMain Fan MotorSolenoidMain Cotrol PCBPanel Sensor PCBHigh-Voltag

II-27 2.2 Paper Transfer 2.2.1 Paper SupplyThe pick-up roller picks up one sheet of paper from the paper feeder every time it isrotated and feeds i

II-28 2.2.3 Paper EjectThe completion of paper eject is detected in the following manner:(a) When the leading edge of the paper pushes down the eject

II-29 2.3 Sensors 2.3.1 Cover SensorDetects opening and closing of the top cover.Fig. 2-35 2.3.2 Toner Empty SensorDetects if there is toner in the

II-30 2.4 Drum Unit 2.4.1 Photosensitive DrumGenerates the latent electrostatic image and develops the image on the drum surface. 2.4.2 Primary Cha

II-31 2.5.2 Exposure StageAfter the drum is positively charged, it is exposed to the light emitted from the laser unit.Fig. 2-38The area exposed to t

II-32 2.5.3 DevelopingDeveloping causes the toner to be attracted to the electrostatic image on the drum so asto transform it into a visible image.Th

II-33 2.5.5 Drum Cleaning StageIn the image transfer stage, not all the toner on the photosensitive drum is transferredonto the paper but some remain

ii2.3 Sensors...II-292

III-1CHAPTER III DISASSEMBLY AND REASSEMBLY 1. SAFETY PRECAUTIONSTo avoid creating secondary problems by mishandling, be careful to follow the foll

III-2 2. DISASSEMBLY FLOWDRUM UNITMP SHEET FEEDER ASSYTOP COVERFIXING UNITSCANNER UNITPAPER SUPPORTEXTENSION SUPPORT WIRE A136OUTPUT TRAY ASSY254187

III-3 3. DISASSEMBLY PROCEDURE 3.1 Output Tray ASSY(1) Open the output tray toward you.(2) Press the hinges at the left and right sides of the outpu

III-4 3.3 Top Cover(1) Open the top cover.(2) Press the hinges at the left and right sides of the top cover inwards to release thetop cover from the

III-5 3.5 MP Sheet Feeder ASSYCaution:When disassembling the MP sheet feeder ASSY, if you get the grease on your fingers,take care not to touch the s

III-6 3.6 Fixing Unit(1) Remove the two M4x16 tapping screws.(2) Lifting the fixing unit, disconnect the thermistor connector on the EL PCB first, th

III-7(5) Release the right side of the paper eject roller shaft.(6) Remove the four eject pinch rollers and the pinch springs from the fixing unitfram

III-8When replacing the heat roller cleaner with a new one, attach the cleaner referring tothe figure below;Fig. 3-10Follow the instructions below whe

III-9Note:When replacing the scanner unit, ensure to assemble the ferrite core using the cablebinder as follows;Fig. 3-13(3) Disconnect the three conn

III-10 3.8 Main PCB ASSY(1) Remove the three M4x6 screws.(2) Hold the hooks at the left and right of the mounting frame to pull out the main PCBASSY.

iiiCHAPTER IV MAINTENANCE AND TROUBLESHOOTING...IV-11. INTRODUCTION ...

III-11(3) Lift the base plate ASSY and remove the grounding screw.Fig. 3-17 3.10 Panel Sensor PCB ASSY(1) Remove the main shield.(2) Remove the M4x12

III-12(3) Disconnect the eight connectors from the PCB. (Three connectors have alreadybeen disconnected when removing the scanner unit.)12345678910(N

III-13(3) Remove the one M4x12 screw to remove the inlet holder. Then, remove the inletand the PCB.Note:When re-assembling the inlet holder and AC in

III-14 3.13 Sub Fan Motor ASSY(1) Slide the sub fan motor ASSY upwards.Fig. 3-23Note:When re-assembling the sub fan motor, ensure that the side on wh

III-15Note:When re-assembling the fan motorinto the holder, refer to the figure onthe right.Fig. 3-25 3.15 Drive Unit(1) Unhook the heater harness fr

III-16Note:When re-assembling the drive unit, ensure that you fit the drive unit underneath theelectrode DRB1.When disassembling the drive unit, be su

III-17 3.18 Paper Support(1) Pull the paper support down toward you and pull both legs outwards to release it.Fig. 3-30 3.19 Extension Support Wire(

III-18 4. PACKINGFig. 3-32DocumentsAccessory cartonPadPadPrinterBagCarton

IV-1CHAPTER IV MAINTENANCE AND TROUBLESHOOTING 1. INTRODUCTION 1.1 Initial Check(1) Operating environmentCheck if :• The source voltage stays wit

IV-2• Condensation on the corona unit may cause corona charge leakage.• Condensation on the hopper gate and separation pad may cause paper feedtrouble

I-1CHAPTER I FEATURES AND SPECIFICATIONS 1. FEATURESThis printer has the following features: High Resolution and Fast Printing Speed<HL-820>T

IV-3 2. CONSUMABLE PARTS 2.1 Drum UnitThe Drum lamp is on when the drum unit is nearly at the end of its life.Life expectancy: 20,000 pages at

IV-4 3. IMAGE DEFECTS 3.1 Image Defect ExamplesI-2 DarkI-1 Light I-2 Dark I-3 Completely blank I-4 All blackI-5 Dirt on back of paper I-6 Black

IV-5 3.2 Troubleshooting Image DefectsThe following procedures should be followed in the event of specific image defects.See subsection 3.3 for infor

IV-6I-2 DarkPossible cause Step Check Result RemedyHV.GNDcontacts(Fig.4-5)Corona failure(soiled wire)1 Is the corona wire dirty? Yes Clean the corona

IV-7I-3 Completely blankPossible cause Step Check Result RemedyHV.GNDcontacts(Fig.4-5)Developing biascontact failure1 Are the developing biascontacts

IV-8I-4 All blackPossible cause Step Check Result RemedyHV.GNDcontacts(Fig.4-5)Corona failure 1 Is the corona wire of the drumunit broken?Yes Replace

IV-9I-5 Dirt on the back of paperPossible cause Step Check Result RemedyFixing unit 1 Is the pressure roller dirty?Is any other area in the printerdir

IV-10I-6 Black and blurred vertical streaksPossible cause Step Check Result RemedyHV.GNDcontacts(Fig.4-5)Corona failure 1 Is the corona wire dirty? Ye

IV-11I-8 Black vertical streaks (in a gray background)Possible cause Step Check Result RemedyTranslucentstain on thescanner window1 Are there any stai

IV-12I-11 Poor fixingPossible cause Step Check Result RemedyPrinting paper 1 Is thick paper more than 42lbweight in use?Yes Instruct the user to use p

I-2Low Running CostThe toner cartridge is separate from the drum unit. You need to replace only the tonercartridge after around 2,400 pages, which is

IV-13I-13 Faint printPrint out test print out test print out test Print out test print o Print out test print oPrint out test print out test pr

IV-14I-15 Black spotsPossible cause Step Check Result RemedyDrum unit 1 Are the spots at 94mmintervals?The problem is not solved afterprinting a few p

IV-15(3) Wipe the surface of the photosensitive drum with a cotton swab until the dustor paper powder on the surface comes off.Fig. 4-4Caution:Do not

IV-16I-17 Gray backgroundPossible cause Step Check Result RemedyPrint paper 1 Does the paper being usedmeet the paper specification(weight, etc.).No R

IV-17I-19 Downward fogging of solid blackPossible cause Step Check Result RemedyDrum unit 1 Is the problem solved afterreplacing the drum unit?Yes Rep

IV-18I-21 Light rainPossible cause Step Check ResultRemedyDrum unit failure 1 Is the problem solved afterreplacing the drum unit withone that does not

IV-19 3.3 Location of High-voltage Contacts and Grounding ContactsFig. 4-5Fig. 4-6Grounding contacts➁➀High-voltage contacts➂ For transferrollerDrum u

IV-20 3.4 Location of Feed Roller Shaft and Grounding ContactsFig. 4-7Feed shaft roller➉ For feed roller

IV-21 4. PAPER JAMProblem Type of jam Cause Temp measureJam at power on Paper stuck Paper feed sensor orpaper eject sensor isturned on.Remove the pap

IV-22 5. TROUBLESHOOTING MALFUNCTIONSWhen carrying out countermeasures for malfunctions as described in this section, checkconnectors for contact fai

I-3 2. SPECIFICATIONS 2.1 PrintingPrint method Electrophotography by semiconductor laser beam scanningLaser: Wave length: 780nmOutput: 5mW maxResolu

IV-23M-3 Main motor unrotatedPossible cause Step Check Result RemedyFailure ofconnector1 Is the connection of connectorP9 on the panel sensor PCBcorre

IV-24M-5 Insufficient output from high-voltage power supply unitPossible cause Step Check Result RemedyHigh-voltagecontact1 Do any of the terminals on

IV-25M-8 Scanner failurePossible cause Step Check Result RemedyHarnessconnectionfailure1 Is the connection of thescanner motor connector P5on the pane

IV-26F-1 Double feedingPossible cause Step Check Result RemedyPaper 1 Is paper of a recommendedtype being used?No Instruct the user to userecommended

IV-27 6. INSPECTION MODE 6.1 Incorporated Inspection ModesThe printer incorporates various inspection modes such as the factory inspection modeand

IV-28DrumAlarmReady(Paper)Data(Toner)Paper eject sensorRegistration sensorCover sensorToner sensorSwitchFig. 4.8Paper eject ON (Paper is detected.) Dr

IV-29 6.2 Error CodesIn the event of a printer failure, error codes will be indicated as shown below. All thelamps and the specific lamps are turned

A-1 APPENDIX 1. SERIAL NO. DESCRIPTIONSThe descriptions below show how to read labels on each printer and part.< ID for production month >A: Ja

Appendix 2. Connection Diagram, HL-820/1020A - 2P1 CDCC I/FMAIN PCBP2 ENGINE I/FMAINMOTORSUBMOTORFAN1FAN2REGISTRATIONSENSORCOVER SW PANEL SENSORPCBSW

Appendix 3. Connection Diagram, HL-1040A - 3RS-100MSERIAL I/FP1 CDCC I/FMAIN PCBP2 ENGINE I/FMAINMOTORSUBMOTORFAN1FAN2REGISTRATIONSENSORCOVER SW PANE