Brother 1240 Service Manual
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Brother 1240 Service Manual

Brother laser printer service manual hl-1030, 1240, 1250, 1270n
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MODEL: HL-1030/1240/1250/1270N
Read this manual thoroughly before maintenance work.
Keep this manual in a convenient place for quick and easy reference at all times.
September, 1999
SM-PRN001
Brother Laser Printer

SERVICE MANUAL

R

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  • Page 1: Service Manual

    Brother Laser Printer SERVICE MANUAL MODEL: HL-1030/1240/1250/1270N Read this manual thoroughly before maintenance work. Keep this manual in a convenient place for quick and easy reference at all times. September, 1999 SM-PRN001...
  • Page 2 Specifications are subject to change without notice. Trademarks: The brother logo is a registered trademark of Brother Industries, Ltd. Apple, the Apple Logo, and Macintosh are trademarks, registered in the United States and other countries, and True Type is a trademark of Apple computer, Inc.
  • Page 3 This service manual contains basic information required for after-sales service of the laser printer (hereinafter referred to as "this machine" or "the printer"). This information is vital to the service technician to maintain the high printing quality and performance of the printer.

  • Page 4: Table Of Contents

    3.6.2 Print guaranteed area ... 1-11 CHAPTER 2 INSTALLATION AND BASIC OPERATION...2-1 CONDITIONS REQUIRED FOR INSTALLATION ..2-1 Power Supply...2-1 Environment...2-1 System Requirements for Brother Printer Solution for Windows UNPACKING ....2-2 INSTALL THE PRINTER..2-3 ® For Windows Users ...2-3...
  • Page 5 Load Paper Manually ...2-10 Two Side Printing (Manual Duplexing)...2-11 4.3.1 To print on both sides of the paper from the paper cassette ... 2-11 4.3.2 To print on both sides of the paper from the manual feed slot... 2-12 CONTROL PANEL OPERATION..2-13 Ready (Paper) LED Indications ...2-13 Data (Toner) LED Indications ...2-14 Drum LED Indications ...2-14...
  • Page 6 TABLE OF CONTENTS 2.2.3 Paper eject ... 3-24 Sensors ...3-24 2.3.1 Cover sensors A and B ... 3-24 2.3.2 Toner sensor ... 3-25 Drum Unit...3-25 2.4.1 Photosensitive drum ... 3-25 2.4.2 Primary charger ... 3-25 2.4.3 Transfer roller ... 3-25 2.4.5 Cleaner...
  • Page 7 Image Defect Examples...6-23 Troubleshooting Image Defect...6-24 Location of Grounding Contacts ...6-41 7.3.1 Drum unit ... 6-41 7.3.2 Printer body & paper cassette... 6-41 INCORRECT PRINTOUT ..6-42 NETWORK PROBLEM (FOR HL-1270N ONLY)..6-45 Installation Problem ...6-45 Intermittent Problem...6-46 TCP/IP Troubleshooting...6-47...
  • Page 8 CONNECTION DIAGRAM, HL-1250..A-18 10. CONNECTION DIAGRAM, HL-1270N ..A-19 11. MAIN PCB CIRCUIT DIAGRAM, HL-1030/1240 (1/2)..A-20 12. MAIN PCB CIRCUIT DIAGRAM, HL-1030/1240 (2/2)..A-21 13. MAIN PCB CIRCUIT DIAGRAM, HL-1250/1270N (1/5) ..A-22 14.

  • Page 9: Regulation

    REGULATION LASER SAFETY (110 - 120V MODEL ONLY) This printer is certified as a Class I laser product under the US Department of Health and Human Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968. This means that the printer does not produce hazardous laser radiation.
  • Page 10 REGULATION IEC 825 (220-240V MODEL ONLY) This printer is a Class I laser product as defined in IEC 825 specifications. The label shown below is attached in countries where required. CLASS 1 LASER PRODUCT APPAREIL LASER DE CLASSE 1 LASER KLASSE 1 PRODUKT This printer has a laser diode which emits invisible laser radiation in the Laser Unit.

  • Page 11: Safety Information

    <Location of the laser beam window> ADDITIONAL INFORMATION When servicing the optical system of the printer, be careful not to place a screwdriver or other reflective object in the path of the laser beam. Be sure to take off any personal accessories such as watches and rings before working on the printer.
  • Page 12 Some parts inside the printer are extremely hot immediately after the printer is used. When opening the front cover or rear cover to access any parts inside the printer, never touch the red colored parts shown in the following figures.

  • Page 13: Chapter 1 General

    The dedicated printer driver for Microsoft Windows 95/98, Windows 3.1 and Windows NT 4.0 are available on the CD-ROM supplied with your printer. You can easily install them into your Windows system using our installer program. The driver supports our unique...
  • Page 14 HL-1250/1270N printers. The printers also support auto- emulation switching between HP, Brother BR-Script 2 and Epson or HP, BR-Script 2 and IBM. If you want to set the printer emulation, you can do it using the Remote Printer Console Program.
  • Page 15 UPC-E Network Feature (for HL-1270N only) The Brother printer has built in multi protocol network capability as standard. This allows multiple host computers to share the printer on a 10/100Mbit Ethernet network. Any users can print their jobs as if the printer was directly connected to their computer. Users on Windows®...

  • Page 16: Overview

    <Front View> Tray extension flap Control panel Manual feed paper guides <Rear View> HL-1030/1240 Rear cover USB interface connector (for HL-1240 only) Parallel interface connector HL-1250/1270N Network interface (for HL-1270N only) Rear cover Modular jack for Lower Tray Unit USB interface...

  • Page 17: Specifications

    Economy printing mode (up to 25% and 50% toner saving) HL-1030: Up to 10 pages/minute HL-1240/1250/1270N: Up to 12 pages/minute* (when loading A4 or Letter-size paper from the paper cassette.) Max. 45 seconds at 23 C (73.4 F) 15 seconds (when loading A4 or Letter-size paper from the paper cassette.)

  • Page 18: Functions

    (PCL level 6), EPSON FX-850 or IBM Proprinter XL HL-1270N: Brother Printing Solution for Windows Automatic emulation selection among HP LaserJet 6P (PCL level 6), Brother BR-Script Level 2, EPSON FX- 850 or IBM Proprinter XL <PCL Driver> Windows 3.1/3.11, Windows 95/98, Windows NT 4.0 driver, supporting Brother Native Compression mode Windows 3.1/3.11, Windows 95/98 driver, supporting bi-...

  • Page 19: Electrical And Mechanical

    AC 220 to 240V, 50 Hz/60 Hz 940 W or less 340 W or less 80 W or less 5 W or less (HL-1030/1240) 6 W or less (HL-1250) 12W or less (HL-1270N) 49 dB A or less 27 dB A or less 10 to 32.5 C (50 to 90.5 F)

  • Page 20: Network (For Hl-1270N Only)

    CHAPTER 1 GENERAL Network (for HL-1270N only) Type / Speed Protocols Management Firmware update Supplied software Paper 3.5.1 Feedable paper (1) Type & size Feeding source Paper cassette Manual feed slot Optional lower paper cassette (HL-1250/1270N only) *NOTE: Legal-size paper can be printed with the standard paper cassette or the optional lower cassette for the US and Canada models only.
  • Page 21 It is recommended to use labels or transparencies which are designed for use in laser printers. Avoid feeding labels with the carrier sheet exposed, or the printer will be damaged. Before loading paper with holes such as organizer sheets, be sure to fan the stack well.

  • Page 22: Paper Cassette Capacity

    (2) Straight paper path output at the rear of the printer capacity: NOTE: When using the straight paper path feed and the rear output method for thicker paper printing, lift up the rear cover at the rear of the printer. Face-down: Face-up: Up to 27mm (1.06 inches) in height...

  • Page 23: Printing Area

    Printing Area 3.6.1 Effective printing area The effective printing area means the area within which the printing of all the data received without any omissions can be guaranteed. (1) Supported by the engine 208mm 4.23mm 4.23mm 3.6.2 Print guaranteed area The values above vary depending on the paper size.
  • Page 24 The paper sizes indicated here should conform to the nominal dimensions specified by JIS. A4 paper must accommodate 80 characters printed in pica pitch (203.2 mm). The dot size is based on 300 dpi resolution. Organizer is not supported by any printer emulations (commands). 297.0 mm 203.2 mm 288.5 mm...

  • Page 25: Chapter 2 Installation And Basic Operation

    100 mm (4 inches) between the ventilation hole and the wall. Do not place the printer where it is exposed to direct sunlight. Use a blind or a heavy curtain to protect the printer from direct sunlight when the printer is unavoidably set up near a window.

  • Page 26: Unpacking

    CHAPTER 2 INSTALLATION AND BASIC OPERATION UNPACKING When unpacking the printer, check to see that all of the following components are included in the carton. Paper cassette Drum unit (with Toner cartridge included) NOTE: Components may vary depending on the country.

  • Page 27: Install The Printer

    OK. (If your CD-ROM drive is not D, type the correct drive letter instead of “D”.) The setup screens shown below are based on the HL-1240 model. They vary depending on the model.
  • Page 28 If your printer is connected using a parallel interface cable, the setup is now completed. If you want to connect your printer using a USB interface cable, refer to USB Interface (For Windows 98 Subsection 3.3 ‘Using the...

  • Page 29: Print A Test Page

    ® For Windows Users with No CD-ROM Drive If you do not have a CD-ROM drive, setup the printer following the steps below, then install the printer driver from the floppy disk. 3.2.1 Install the drum unit (1) Open the front cover.

  • Page 30: Connect The Printer And The Computer

    (1) Turn off the power switch. (2) Connect the parallel interface to the computer, then connect it to the printer. (Fig. 2-13) (3) Use the clips on the printer connector to secure the parallel interface cable. (4) Turn on the printer power switch. 3.2.5 Install the printer driver from floppy disk (1) Turn on the computer power.

  • Page 31: Using The Usb Interface

    Using the USB Interface (for Windows 98 only) For the HL-1240/1250/1270N printers, the USB interface cable can be connected between the printer and PC. Prepare the printer to use the USB interface following the steps below; 3.3.1 Connect the USB interface cable (1) Check that the printer power switch is on.
  • Page 32 CHAPTER 2 INSTALLATION AND BASIC OPERATION (3) Insert the supplied CD-ROM into the CD- ROM drive and select “CD-ROM drive”. Click the Next button. (4) Click the Next button, then the USB driver will be installed. (5) Click the Finish button. (6) Click the Yes button, then your PC will re- start.

  • Page 33: Set The Pc Printer Port

    For Macintosh (iMac and Power Macintosh) with USB Users Only When you use the HL-1240/1250/1270N printer with Macintosh using USB, setup the printer following the Initial Setup instructions on the supplied CD-ROM. (1) Turn on the computer power, then insert the CD-ROM into the CD-ROM drive. The window shown below will appear automatically.

  • Page 34: Paper Handling

    CHAPTER When using the manual feed slot, follow the steps below; (1) Select the manual feed mode in the printer driver, and send the print data to the printer. NOTE: A ‘NO PAPER’ message is shown in the status monitor until a sheet of paper is inserted into the manual feed slot.

  • Page 35: Two Side Printing (Manual Duplexing)

    The printer has a straight paper path from the manual feed slot to the rear of the printer when the rear cover is lifted up. Use this paper feed and output method when printing on thicker paper or card. (1) Select the manual feed mode in the printer driver.

  • Page 36: To Print On Both Sides Of The Paper From The Manual Feed Slot

    (5) Re-insert them in order into the manual feed slot, loading the paper with the side to be printed (blank side) face up, and the top edge towards the printer. Follow the instructions on the computer screen. (Fig. 2-27) (6) Repeat action (5) until you have printed all the odd numbered pages on the reverse side of the paper.

  • Page 37: Control Panel Operation

    CONTROL PANEL OPERATION There are four LEDs and a button on the control panel. The LEDs indicate the printer status, and pressing the button enables several functions in the printer. Ready (Paper) LED Indications The Ready LED indicates the current status of the printer.

  • Page 38: Data (Toner) Led Indications

    Alarm LED Indications The Alarm LED blinks (with no other LEDs) to indicate a printer error status such as “cover open” or “memory full”. If any other error occurs, the printer indicates the error by blinking the Alarm LED with another LED or by printing an error report.

  • Page 39: Control Panel Button Operations

    (Intelligent Sleep Mode). While the printer is in sleep mode, all the LEDs are off and it is as if it was turned off, but the printer can still receive data from the computer. Receiving a print file or document automatically wakes up the printer to start printing.

  • Page 40: Test Print Mode

    CHAPTER 2 INSTALLATION AND BASIC OPERATION 5.6.2 Test print mode The printer incorporates various test print modes. The printer enters into each test print mode by panel button operation. For details on test print mode, see Subsection 10.1 ‘Test Print Mode’ in CHAPTER...

  • Page 41: Network Board Operation (For Hl-1270N Only)

    NETWORK BOARD OPERATION (FOR HL-1270N ONLY) The network board installed in the back of the printer allows you to share the printer on a network. Preparing the BR-net Board 6.1.1 Connect the Ethernet cable (1) Turn off the printer power.

  • Page 42: Print Configuration Page

    CHAPTER 2 INSTALLATION AND BASIC OPERATION 6.1.3 Print configuration page Press the Network Test button for less than 5 seconds to print a configuration page. Functions 6.2.1 LED functions L-LED (green): Link activity This LED is on if there is a valid connection to the network (either 10BaseT or 100BaseTX). It is off if no network is detected.

  • Page 43: Chapter 3 Theory Of Operation

    CHAPTER 3 THEORY OF OPERATION ELECTRONICS General Block Diagram HL-1030/1240 Fig. 3-1 shows a general block diagram of the HL-1030/1240 printer. Control system RAM 2MB Drum unit Charging Image generation system Interface block (HL-1030: Parallel) Video control block (HL1240: Parallel/USB)
  • Page 44 CHAPTER 3 THEORY OF OPERATION HL-1250 Fig. 3-2 shows a general block diagram of the HL-1250 printer. Optional RAM (SIMM) Optional I/F board (max. 32Mbytes) Control system Expansion RAM 4MB memory I/O Video control block Engine control block Laser unit...
  • Page 45 HL-1270N Fig. 3-3 shows a general block diagram of the HL-1270N printer. Optional RAM (SIMM) (max. 32Mbytes) Control system RAM 4MB Video control block Laser unit Drum unit Charging block Image generation system Network board Ethernet 10/100 Base TX Expansion...

  • Page 46: Main Pcb Block Diagram

    CHAPTER 3 THEORY OF OPERATION Main PCB Block Diagram HL-1030/1240 Fig. 3-4 shows the block diagram of the main PCB of the HL-1030/1240 printer. Reset Circuit Program + Font ROM 1.0 Mbytes (2.0 Mbytes) EEPROM (128 8 bits) CPU Core Oscillator (32.7MHz)
  • Page 47 HL-1250 Fig. 3-5 shows the block diagram of the main PCB of the HL-1250 printer. Reset Circuit Program + Font ROM 4.0 Mbytes (4.0 Mbytes) Option RAM (SIMM) (max. 32Mbytes) Option Serial I/O (RS232C & RS422A) EEPROM (512 x 8 bits)
  • Page 48 CHAPTER 3 THEORY OF OPERATION HL-1270N Fig. 3-6 shows the block diagram of the main PCB of the HL-1270N printer. A S I C CPU Core (MB86832) Oscillator (32.7MHz) Reset Circuit Address Decoder DRAM Control Program + Font ROM 4.0 Mbytes...

  • Page 49: Main Pcb

    (nibble mode, byte mode, ECP mode). (2) USB interface (for HL-1240 only) Stores the data received from the PC into DRAM as controlled by the DMA controller. The transmission speed is 12Mbps.
  • Page 50 CHAPTER 3 THEORY OF OPERATION HL-1250/1270N A Fujitsu 32bit RISC CPU, MB86832 (SPARC lite) is built in the ASIC. While the CPU is driven with a clock frequency of 33 MHz in the user logic block, it itself runs at 66 MHz, which is generated by multiplying the source clock by two.
  • Page 51 CHAPTER 3 THEORY OF OPERATION Fig. 3-8...

  • Page 52: Rom

    CHAPTER 3 THEORY OF OPERATION 1.3.2 HL-1030/1240 An 8 Mbits ROM (x 16 bit) is fitted. Fig. 3-9 HL-1250 Two 16 Mbits ROMs (x 16 bit) are fitted. Fig. 3-10 3-10...
  • Page 53 CHAPTER 3 THEORY OF OPERATION HL-1270N Two 32 Mbits ROMs (x 16 bit) are fitted. Fig. 3-11 3-11...

  • Page 54: Flash Rom

    CHAPTER 3 THEORY OF OPERATION 1.3.3 Flash ROM (for HL-1270N only) HL-1270N Two 8 Mbits flash ROMs (x 16 bit) are fitted. 1.3.4 DRAM HL-1030/1240 A 16M-bit DRAM (x 16 bits) is used as the RAM. Fig. 3-12 Fig. 3-13 3-12...
  • Page 55 CHAPTER 3 THEORY OF OPERATION HL-1250/1270N Two 16M-bit DRAMs (x 16 bits) are used as the RAM. Fig. 3-14 3-13...

  • Page 56: Optional Ram

    CHAPTER 3 THEORY OF OPERATION 1.3.5 Optional RAM HL-1250/1270N A 32bit (72 pin) SIMM can be fitted as optional RAM. The main PCB has one slot and the capacity of SIMM can be from 1 Mbyte to 32 Mbytes. Fig. 3-15 3-14...

  • Page 57: Optional Serial I/O

    1.3.6 Optional serial I/O HL-1250 The interrupt of the serial I/O is input to the EXINT terminal of the ASIC, and is recognized by the CPU. A 32-byte register is provided for this I/O, which is read from and written to by the CPU.

  • Page 58: Eeprom

    CHAPTER 3 THEORY OF OPERATION 1.3.8 EEPROM HL-1030/1240 The EEPROM is X24C01A type of two-wire method with a 128 x 8 bits configuration. HL-1250 The EEPROM is X24C04 type of two-wire method with a 512 x 8 bits configuration. HL-1270N The EEPROM is X24C32 type of two-wire method with a 4096 x 8 bits configuration.

  • Page 59: Engine I/O

    The reset IC is a RN5VD42A. The reset voltage is 4.2V (typ.) and the LOW period of reset is 80ms (typ.) 1.3.10 Engine I/O HL-1030/1240 Fig. 3-22 shows the engine interface circuit. The interface with the engine PCB is by full- duplex synchronous serial method.

  • Page 60: Engine Pcb

    CHAPTER 3 THEORY OF OPERATION Engine PCB The gate array which transforms the serial signal from the main PCB into the parallel signal is mounted on the engine PCB. The engine PCB controls the following parts by using the transferred signal data; Main motor Panel PCB Fan motor...

  • Page 61: Power Supply

    Power Supply 1.6.1 Low-voltage power supply The power supply uses a switching regulation system to generate the regulated DC power (+5V and +24V), which are converted from the AC line. The regulated output and the production code of each power supply are listed below; Regulated Output +5V / 1.6 A +24V / 2.15 A...

  • Page 62: High-Voltage Power Supply

    CHAPTER 3 THEORY OF OPERATION 1.6.2 High-voltage power supply The high-voltage power supply generates and outputs the voltages and currents for the charging, development and transfer functions. For the circuit diagram of the high-voltage power supply PCB, see 24VI B102 B101 Q101 Current Regulator...

  • Page 63: Mechanics

    MECHANICS Overview of Printing Mechanism Rear cover First eject roller Fixing Unit Eject sensor lever Paper Second eject roller Photosensitive drum Corona wire Thermistor Cleaner Heat roller Drum Unit Transfer roller Pressure roller Pressure plate Paper Cassette Rear registration sensor lever Fig.
  • Page 64 CHAPTER 3 THEORY OF OPERATION Network Board (HL-1270N) Main PCB Low-Voltage Power Supply Fixing Unit Halogen Heater Lamp Laser Unit Laser Polygon Motor Engine High- Front Registration Voltage Sensor Power Supply Rear Registration Sensor Upper Paper Cassette Sensor (HL-1250/1270N) Lower Paper Cassette Registration Sensor (HL-1250/1270N)

  • Page 65: Paper Transfer

    Paper Transfer 2.2.1 Paper supply The paper pick-up roller picks up one sheet of paper from the paper cassette every time it is rotated and feeds it to the paper feed roller. Pinch roller Paper feed roller Front registration sensor lever Pressure plate The paper is gripped between the paper pick-up roller and the separation pad and separated into individual sheets.

  • Page 66: Paper Eject

    After the paper exits from the first eject roller, the paper is turned by the rear cover and ejected face down into the top output tray through the second eject roller. If the rear cover is open, the paper is ejected face up straight to the printer rear (straight paper path). Rear cover Sensors 2.3.1...

  • Page 67: Toner Sensor

    2.3.2 Toner sensor Detects if there is toner in the toner cartridge. The toner sensor at the left side emits light through the window on the left side of the toner cartridge, then the toner sensor at the right side receives it when the toner is low. They also detect whether or not the drum unit is installed.

  • Page 68: Print Process

    The primary charge uses a corona wire, but since the drum is positively charged, only less than 1/10 of the usual quantity of ozone is generated compared with the negatively charged drum. The level of ozone expelled from the printer is therefore not harmful to the human body. Applicable safety standards have been complied with.

  • Page 69: Developing

    The area exposed to the laser beam is the image to be printed. The surface potential of the exposed area is reduced, forming the electrostatic image to be printed. 1 Cycle of drum +870 +420 +200 Drum Sleeve 0 2.6.3 Developing Developing causes the toner to be attracted to the electrostatic image on the drum so as to transform it into a visible image.

  • Page 70: Transfer

    CHAPTER 3 THEORY OF OPERATION 2.6.4 Transfer (1) Transfer process After the drum has been charged and exposed, and has received a developed image, the toner formed is transferred onto the paper by applying a negative charge to the back of the paper.

  • Page 71: Chapter 4 Disassembly And Re-Assembly

    (1) Always turn off the power switch and unplug the power cord from the power outlet before accessing any parts inside the printer. (2) Some parts inside the printer are extremely hot immediately after the printer is used. When opening the front cover or rear cover to access any parts inside the printer, never touch the red colored parts shown in the following figures.

  • Page 72: Disassembly Flow

    DISASSEMBLY FLOW DISASSEMBL AC CORD DRUM UNIT PAPER CASSETTE NETWORK BOARD (HL-1270N only) FRONT COVER TOP COVER MAIN COVER LASER UNIT DRIVE UNIT BASE PLATE FIXING UNIT PAPER FEED PAPER PICK-UP ROLLER ASSY ROLLER ASSY OUTER CHUTE 1 PCBs LOWER TRAY RELAY MAIN PCB ASSY PCB ASSY (HL-1250/1270N only)

  • Page 73: Disassembly Procedure

    DISASSEMBLY PROCEDURE AC Cord (1) Disconnect the AC cord from the printer AC inlet. Drum Unit (1) Open the front cover and remove the drum unit from the printer. CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY Printer AC cord Fig. 4-1 Fig. 4-2...

  • Page 74: Paper Cassette

    CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY Paper Cassette (1) Close the front cover, pull out the paper cassette from the printer and remove the paper from the cassette. (2) Remove the separation pad holder ASSY by pulling it upwards, then remove the separation pad spring from the paper cassette.
  • Page 75 NOTE: When replacing/re-assembling the separation pad holder, remove the old grease and apply a suitable amount of grease referring to the figure below; Grease: Molykote PG-662 (1 rice-grain size) (3) Turn the paper cassette upside down, then remove the cassette cover film by peeling it carefully from the underside of the cassette.
  • Page 76 CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY (5) Keeping the paper cassette upside down, release the pressure roller holder assembly from the cassette by releasing the metal mounting plate from the plastic retaining boss. Use a flat screwdriver to press the metal plate forwards until it clears the boss and then remove the pressure roller holder assembly downwards from the cassette.
  • Page 77 (10) Turn the cassette the correct way up and slide the two paper guides to the center of the cassette. (11) Remove the side guides Left and Right from the paper cassette. Side guide R (12) Unhook the two catches (A) of the pressure plate while pulling the plastic frame outwards, then unhook the other two catches (B) of the plate while pulling the plastic frame outwards to remove the pressure plate ASSY.
  • Page 78 CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY NOTE: When re-assembling the pressure plate ASSY, ensure that the paper indicator arm is under the pressure plate. CAUTION: When unhooking the catches to remove the pressure plate, do not bend the pressure plate, gently ease the plastic cover. If the pressure plate is deformed, paper feeding problems may occur.
  • Page 79 (17) Turn the cassette upside down and remove the one M3x8 Taptite screw to remove the side guide gear. Then remove the one friction spring. (18) Remove the two side guide racks. (19) Remove the paper indicator. Taptite cup M3x8 Side guide gear Friction spring Side guide rack...

  • Page 80: Network Board (For Hl-1270N Only)

    CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY Network Board (for HL-1270N only) (1) Open the rear cover. (2) Remove the two M3x8 Taptite screws to remove the access cover. Access cover Taptite, bind M3x8 (3) Remove the two M3x6 Taptite screws securing the network board. (4) Disconnect the connector connected with the main PCB and remove the network board.

  • Page 81: Front Cover

    Front Cover (1) Open the front cover. (2) Remove the four M3x8 Taptite screws from the main cover. Main cover (3) Position the front cover at the angle of 45 degrees and release the bosses at the right and left hand sides and the link at the left hand side. (4) Remove the front cover.

  • Page 82: Top Cover

    (3) Open the rear cover, then release the hooks (A) at the right and left hand sides of the top cover while pushing them towards the side of the printer from the rear. (4) Lift up the top cover and release the hooks (B) at the right and left hand sides of the top cover to remove the top cover.

  • Page 83: Main Cover

    (1) Remove the two M3x8 Taptite screws from the rear of the main cover. (2) Release the hooks at the right and left hand top sides of the printer, then, while pulling the cover outwards to clear the power socket and switch, lift up the main cover to remove it complete with the rear cover.
  • Page 84 CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY (3) Bend the tray extension flap upwards slightly to remove the tray extension flap. (4) Release the rear cover springs Left and Right from the hooks on the main cover. (5) Remove the rear cover complete with the rear cover springs Left and Right from the main cover.

  • Page 85: Laser Unit

    Never touch the scanner window on the printer body. If there is any dirt or dust on the window, blow it off using an air gun. If cleaning the underside of the scanner window, wipe off dirt or dust with soft clean paper.

  • Page 86: Drive Unit

    CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY Drive Unit (1) Place the printer body carefully on its right hand side so that the drive unit is at the top. (2) Remove the five M3x6 Taptite screws securing the gear plate. (3) Disconnect the heater harness connector and release the panel PCB harness from the hooks.
  • Page 87 NOTE: When replacing/re-assembling the main motor, remove the old grease and apply a suitable amount of grease referring to the figure below; (7) Remove the development joint complete with the joint spring, then remove the link. Development joint Link CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY Main motor ASSY Grease: Molykote PG-662 (1 rice-grain size)

  • Page 88: Fixing Unit

    CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY 3.10 Fixing Unit (1) Place the main frame on its base so that the rear side is facing you. (2) Press the two hooks inwards to remove gear 59. (3) Disconnect the two connectors of the heater harness and release the harness from the hooks on the top of the fixing unit.
  • Page 89 NOTE: When re-assembling the fixing unit, align the fixing unit frame at the drive unit side into the concave part of the main frame. Fixing unit (7) Remove the M3x10 screw to remove the star wheel holder ASSY from the fixing unit by lifting the left hand end of the assembly slightly and then moving the assembly to the right to release the right hand end from the fixing unit frame.
  • Page 90 CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY (8) Remove the two M3x20 Taptite screws from the top of the fixing unit frame. (9) Release the thermistor harness from the hooks. (10) Release the two hooks at the right and left sides securing the fixing unit cover to the fixing unit frame.
  • Page 91 (12) Remove the one M3x10 Taptite screw securing the halogen lamp connector plate at the drive unit side of the fixing unit frame and then loosen the M3x6 screw at the other side. (13) Lift the right hand end of the heat roller and remove the halogen heater lamp from the heat roller.
  • Page 92 CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY (14) Lift and remove the heat roller. The heat roller gear will also come off. (15) Remove the heat roller bearing from the left hand end of the heat roller. To remove the bearing at the gear side, first remove the two washers, then remove the bearing. CAUTION: Never touch the surface of the heat roller.
  • Page 93 When re-assembling the heat roller bearing which is assembled at the heat roller gear side, fix the bearing onto the heat roller so that the embossment whose thickness is 0.5mm is at the top. Heat roller gear (embossment) When re-assembling the heat roller to the fixing unit frame, ensure you do not damage the heat roller with the four hooks on the fixing unit frame.
  • Page 94 CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY (16) Remove the heat roller cleaner complete with the cleaner spring from the fixing unit frame by lifting it upwards until the spring releases from the frame. (17) Remove the cleaner spring from the heat roller cleaner. Fixing unit frame NOTE: When re-assembling the heat roller cleaner complete with the cleaner spring onto the fixing...
  • Page 95 NOTE: When re-assembling the pressure roller cleaner complete with the cleaner spring onto the fixing unit cover, ensure the direction of the roller is correct referring to the figure above. Ensure also that the spring is seated correctly in the locating channel and does not protrude from either end.
  • Page 96 CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY (22) Press the two catches holding the idle gear 13 to the frame and then remove the idle gear 13. Slide the first eject roller to the left until the slot in the roller shaft aligns with the slot in the frame and then remove the roller by pulling it forwards.
  • Page 97 CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY (24) Turn the frame up-side down. Remove the black films (4 pcs.) and then remove the pick off fingers (4 pcs.) using a piece of tweezers. Pick off finger Tweezers (25) Release the paper eject actuator from the hook on the fixing unit cover, and then slide the paper eject actuator to the right direction to remove the paper eject actuator and the eject paper spring from the fixing unit cover.
  • Page 98 PR2000057 CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY NOTE: When re-assembling the paper eject actuator and the eject paper spring to the fixing unit cover, ensure the paper eject actuator is seated correctly in the locating channel referring to the figure below; Paper eject actuator Fixing unit cover Eject actuator spring...

  • Page 99: Base Plate

    (2) Remove the five M4x10 Taptite screws and 16 (sixteen) M3x8 Taptite screws from the base plate. (3) Slide the base plate to the rear of the printer to remove it. CAUTION: Do not remove the ground wire connected to the base plate if it is not necessary to remove the low-voltage power supply unit.
  • Page 100 CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY CAUTION: When re-assembling the base plate, be sure that the ground wire connected to the paper feed roller ASSY is fixed into the slit on the plastic chute referring to the figure below; When securing the screws to assemble the base plate, ensure you use the jig shaft referring to the figure below so that the engine PCB is assembled correctly;...

  • Page 101: Main Pcb Assy

    3.12 Main PCB ASSY NOTE: For HL-1250/1270N only Ensure that any installed SIMM memory is removed BEFORE removing the main PCB. (1) Remove the two M3x8 screws from the I/F plate to release the main PCB. (2) Lift the insulation sheet and remove the main PCB ASSY. (3) Disconnect the three connectors for the low-voltage power supply, engine PCB and LD.

  • Page 102: Low-Voltage Power Supply Pcb Assy

    CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY 3.14 Low-Voltage Power Supply PCB ASSY (1) Remove the M3x8 Taptite screw to remove the insulation sheet. (2) Slightly lift up the low-voltage power supply PCB ASSY from the frame and disconnect the engine PCB connector. Then lift the power supply PCB ASSY further and disconnect the halogen heater lamp connector.
  • Page 103 Be sure to attach the film to the AC inlet ASSY in the following cases referring to the figure below; If the film is not attached to the AC inlet on the printer you are servicing. If the film is damaged, or the adhesive is weak.

  • Page 104: Engine Pcb Assy / High-Voltage Power Supply Pcb Assy

    3.15 Engine PCB ASSY / High-Voltage Power Supply PCB ASSY (1) Remove the M4x12 Taptite screw to remove the insulation sheet. (2) Remove the three M4x12 Taptite screws securing the engine PCB and the high-voltage power supply PCB. (3) Lift the engine PCB and high-voltage power supply PCB together and disconnect the connector which connects two PCBs together to remove the high-voltage power supply PCB ASSY.
  • Page 105 CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY (5) Disconnect the 11 (eleven) connectors for HL-1030/1240 or 12 (twelve) connectors for HL- 1250/1270N from the engine PCB to remove the engine PCB ASSY. Main PCB connector Low-voltage power supply connector Thermistor connector Fan motor connector...

  • Page 106: Panel Pcb Assy

    3.16 Panel PCB ASSY NOTE: Be sure to remove the drive unit and disconnect the panel PCB connector on the engine PCB before removing the panel PCB ASSY. (1) Remove the M3x6 Taptite screw, then remove the panel PCB ASSY. 3.17 Solenoid ASSY NOTE: Be sure to remove the drive unit and disconnect the solenoid connector on the engine PCB...
  • Page 107 CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY (4) Release the catch and remove the clutch levers for the feed roller and pick-up roller. Clutch lever spring Clutch lever (for paper pick-up roller) Solenoid Main frame CAUTION: When removing the clutch levers, the clutch lever spring may come off. Be sure not to lose When re-assembling the clutch lever for the paper feed roller, ensure that the U shaped groove of the lever is fitted onto the rod in the solenoid correctly referring to the figure above.
  • Page 108 (6) Turn the main frame upside down. (7) Remove the two M3x6 Taptite screws and release the solenoid harness from the hook and remove the cassette guide L/F. Step (7) Taptite, cup M3x6 (8) Remove the M3x4 screw and the tape on the solenoid harness and remove the solenoid ASSY.

  • Page 109: Fan Motor Assy

    CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY 3.18 Fan Motor ASSY NOTE: Be sure to remove the fixing unit and disconnect the fan motor connector on the engine PCB before removing the fan motor ASSY. (1) Place the main frame so that the fan motor ASSY is at the top. (2) Remove the two M3x6 Taptite screws securing the fan cover.

  • Page 110: Toner Sensor Pcb Assy (Light Emission)

    3.19 Toner Sensor PCB ASSY (Light Emission) NOTE: Be sure to disconnect the toner sensor (light emission) connector on the engine PCB before removing the toner sensor PCB ASSY (light emission). (1) Release the hooks of the toner sensor PCB ASSY (light emission) and remove it. Toner sensor PCB ASSY (light emission) 3.20 Toner Sensor PCB ASSY (Light Reception)

  • Page 111: Paper Pick-Up Roller Assy

    CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY 3.21 Paper Pick-up Roller ASSY NOTE: Be sure to remove all the covers and the base plate before removing the paper pick-up roller ASSY. (1) Place the main frame upside down. (2) Unhook the hook to remove the inner gear 54, gear 45 and gear 20 from the main frame. (3) Remove the bearing from the paper pick-up roller shaft.

  • Page 112: Paper Feed Roller Assy

    3.22 Paper Feed Roller ASSY NOTE: Be sure to remove all the covers and the PCBs before removing the paper feed roller ASSY. (1) Unhook the black plastic hook on the shaft to remove gear 21. CAUTION: The plastic hook holding gear 21 will break easily if it is not fully released before the gear is pulled to remove it.

  • Page 113: Outer Chute 1

    CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY PR2000051 3.23 Outer Chute 1 (1) Remove two M3x6 Taptite screws and two M3x8 Taptite screws to remove the outer chute 2 ASSY. (2) Unhook two hooks using a slotted screwdriver and then remove the outer chute 1. Outer chute 1 Outer chute 2 ASSY Fig.

  • Page 114: Packing

    CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY PACKING Insertion sheet Accessory bag Accessory carton AC Cord Drum Unit (with Toner Cartridge included) Printer Carton Fig. 4-71 4-40...

  • Page 115: Chapter 5 Periodic Maintenance

    (1) Always turn off the power switch and unplug the power cord from the power outlet before accessing any parts inside the printer. (2) Some parts inside the printer are extremely hot immediately after the printer is used. When opening the front cover or rear cover to access any parts inside the printer, never touch the red colored parts shown in the following figures.

  • Page 116: Toner Cartridge

    (7) Close the front cover, and check that the Drum LED is now off. CAUTION: For best performance, use only genuine Brother toner. The product should only be used in a clean, dust-free environment with adequate ventilation.. Only unpack a drum unit immediately before you need to install it into the printer. If an unpacked drum unit is subjected to excessive direct sunlight or room light, the unit may be damaged.
  • Page 117 It may also cause serious damage to the performance and life of a genuine Brother drum unit. Warranty cover is not applied to problems caused by the use of 3rd party toner or toner cartridges.

  • Page 118: Periodical Replacement Parts

    CHAPTER 5 PERIODIC MAINTENANCE PERIODICAL REPLACEMENT PARTS Periodical replacement parts are the parts to be replaced periodically to maintain product quality. These parts would affect the product quality greatly if they lost their function even if they do not appear to be damaged or there is no change in their appearance.) The periodical replacement parts listed below should be replaced at the service center referring to the service life.

  • Page 119: Periodical Cleaning

    While drum unit and scanner window cleaning basically can be implemented by the end user, the electrical terminals inside the printer and on the drum unit should be cleaned by a service technician. Instruct the users not to touch those terminals.

  • Page 120: Cleaning The Scanner Window

    Do not wipe the scanner window with cleaning alcohol (isopropyl). Clean the Electrical Terminals To obtain the best print performance, be sure to clean the electrical terminals inside the printer body. Turn off the power switch and unplug the power cord.

  • Page 121: Mtbf / Mttr

    MTBF / MTTR The meantime between failure (MTBF) and the meantime to repair (MTTR) for this printer are as follows; MTBF: Up to 4,000 hours MTTR: Average 30 minutes CHAPTER 5 PERIODIC MAINTENANCE...
  • Page 122 CHAPTER 5 PERIODIC MAINTENANCE...

  • Page 123: Chapter 6 Troubleshooting

    The printer is not located in a dusty place. The printer is not exposed to ammonia fumes or other harmful gases. The printer is not located in a hot or humid area (such as near water or a humidifier). The printer is not exposed to direct sunlight.

  • Page 124: Warnings For Maintenance Work

    Condensation on the corona unit may cause corona charge leakage. Condensation on the hopper plate and separation pad may cause paper feed troubles. If condensation has occurred, print several pages or leave the printer for 2 hours to allow it to reach room temperature.

  • Page 125: Identify The Problem

    Identify the Problem If you encounter any printer error or problem, first identify it referring to the chart below, then see the appropriate section. NOTE: The following troubleshooting sections contain both the actions which users should take or check and the ones which service technicians should perform.

  • Page 126: Operator Calls & Service Calls

    Alarm & Data LEDs are ON. Service Calls When the printer indicates the need for a service call by illuminating all the LEDs and then a combination of LEDs alternately as shown in the table on the next page, a user unrecoverable error may have occurred.
  • Page 127 Type of error Drum Fuser Malfunction Laser BD Malfunction Scanner Malfunction ROM Error D-RAM Error Service A * Service B * Engine Interface Error Main Motor Malfunction NV-RAM Error CPU Runtime Error * PCI Bus Error * Refer to the further description of these errors as follows; Address Error Service A: Service B:...

  • Page 128: Error Messages

    CHAPTER 6 TROUBLESHOOTING ERROR MESSAGES Error Messages in the Status Monitor The status monitor will report problems with the printer as defined in the following table. Take the corrective actions for the error message the status monitor reports. Error Message...
  • Page 129 Error Message FUSER MALFUNCTION Turn the power switch off, wait a few seconds and then turn it on again. Leave the printer for 10 minutes with power on. If the same error occurs again, see LASER BD Turn the power switch off, wait a few seconds and then turn it on MALFUNCTION again.

  • Page 130: Error Message Printouts

    CHAPTER 6 TROUBLESHOOTING Error Message Printouts The printer will report problems by printing an error message as defined in the following table. Take the corrective actions for the error message the Printout reports. Error Message MEMORY FULL PRINT OVERRUN RESOLUTION...

  • Page 131: Paper Problems

    (2) Reduce the amount of paper in the cassette. Keep paper loads below 27mm in depth. (3) Check that manual feed mode is not selected in the printer driver. (1) Re-install the paper firmly into the manual feed slot, one sheet at a time.

  • Page 132: Paper Jams

    6-2) (3) Open the front cover. (4) Remove the drum unit assembly. Pull any jammed paper up and out of the printer. Do not remove the drum unit assembly with additional force at this time if you cannot remove it easily.

  • Page 133: Causes & Countermeasures

    The causes for paper jam problems vary depending on the location of the paper jam. When a paper jam occurs inside the printer, you have to find the location of the paper jam first, remove the jammed paper and then take the appropriate countermeasure referring to the table below;...

  • Page 134: Paper Feeding Problems

    CHAPTER 6 TROUBLESHOOTING Paper Feeding Problems Even if the paper is printed and ejected without any problems such as paper jams, paper feeding problems below may appear. Users can clear these problems by following the ‘User Check’ items for each problem. Even if the same problem occurs again, follow the procedures in the table below.
  • Page 135 (2) If the printer is used infrequently, the paper may have sat for too long in the paper cassette. Turn over the stack of paper in the paper cassette. Also, try rotating the paper 180° in the paper cassette.

  • Page 136: Software Setting Problems

    “There was an error writing to LPT1: (or BRUSB) for the printer” error message appears. User Check (1) Check that the printer cable is not damaged or broken. Check also that the cable is connected to the correct interface connectors of both the printer and PC.
  • Page 137 Unable to print from application software under DOS. User Check (1) Check that the DOS application software interface settings match that of your printer. (2) Check if the printer has any printer alarms active. (3) Check if the appropriate printer is selected in your application software.
  • Page 138 Computer. (HL-1250 only) User Check (1) Check that the supplied Macintosh printer driver is installed in the System Folder and it is selected with Chooser. (2) Check the PORT selection within the Chooser. It should match the port to which you physically attached the printer cable.
  • Page 139 This printer does not appear in Chooser with iMac and Power Macintosh G3 with USB. (HL-1240/1250/1270N only) User Check (1) Check the printer is turned on. (2) Check the USB interface cable is connected correctly. (3) Check the printer driver is installed correctly.

  • Page 140: Malfunctions

    CHAPTER 6 TROUBLESHOOTING MALFUNCTIONS When taking countermeasures for malfunctions as described in this section, check connectors for contact failure before measuring the voltage at the specified connector pins. No AC power supplied Possible cause Step Supply voltage Power plug Fuse (F1, F2) Wiring No DC power supplied Possible cause...
  • Page 141 Main motor does not rotate Possible cause Step Failure of Is the connection of connector connector P9 on the engine PCB correct? Main motor Is the problem solved by replacing the main motor? Engine PCB Is the problem solved by replacing the engine PCB? Main PCB Is the problem solved by...
  • Page 142 CHAPTER 6 TROUBLESHOOTING Insufficient output from high-voltage power supply unit Possible cause Step High-voltage contact High-voltage power supply Fixing heater temperature failure Possible cause Step Poor thermistor harness contact Blown thermal fuse Thermistor failure Halogen heater lamp failure BD failure Possible cause Step Harness...

  • Page 143: Fuser Failure

    NOTE: This problem will be cleared if leaving the printer power ON for ten minutes. If the heater is cooled down sufficiently, this problem may be cleared by turning on the printer power switch while pressing the panel button. Be warned, however, that this operation will melt the fixing unit if the heater is hot.
  • Page 144 Is the problem solved by replacing the main PCB? 6-22 PR99210 Result Remedy Replace the main PCB. Inform the Brother office of the used specific data, printer condition and system environment. Result Remedy Replace the main PCB. Inform the Brother office of the...

  • Page 145: Image Defects

    IMAGE DEFECTS Image Defect Examples I-1 Light I-2 Dark I-2 Dark I-6 Black vertical I-6 Black vertical streaks streaks I-10 White horizontal I-11 Faulty streaks registration I-15 White spots I-16 Black spots I-20 Downward fogging I-21 Horizontal lines of solid black I-3 Completely blank I-4 All black I-7 Black horizontal...

  • Page 146: Troubleshooting Image Defect

    See also Subsection 7.3 CAUTION: When using the printer for a special job, such as printing of name cards, print quality cannot be guaranteed. Light User Check (1) Check the printer’s environment. Conditions such as humidity, high temperatures, etc.
  • Page 147 Dark User Check (1) Check the paper used meets the recommended paper specifications. (2) Check the printer’s environment. High temperature and high humidity conditions can increase the amount of background shading. (3) Clean the corona wire with the wire cleaner.

  • Page 148: Completely Blank

    Are the developing bias contacts between the printer body and drum unit dirty? Are the drum shaft and drum electrode of the printer body connected correctly? Is the problem solved after replacing the drum unit? Is the problem solved after...

  • Page 149: All Black

    Possible cause Step Corona failure Is the corona wire dirty? Is the corona wire broken? Are the charge electrodes between the printer body and the drum unit dirty? Harness Is the laser unit connected to connection the main PCB correctly?
  • Page 150 (10) Press the panel button again and release it immediately. A page of test pattern is printed while cleaning the pressure roller. Check Is the pressure roller dirty? Is any other area in the printer dirty? Is the transfer roller dirty? Is the problem solved after...
  • Page 151 Black and blurred vertical streaks (1) Clean the corona wire in the drum unit. (2) Check that the corona wire cleaner is at the home position. (3) Check that the toner cartridge is not empty. (4) The drum unit may be damaged. Install a new drum unit. (5) The toner cartridge may be damaged.
  • Page 152 User Check (1) The drum unit may be damaged. Install a new drum unit. (2) Check the paper used meets the recommended paper specifications. (3) Clean the printer interior and the corona wire in the drum unit. Possible cause Step...

  • Page 153: White Vertical Streaks

    (1) Check the paper used meets the recommended paper specifications. A rough surfaced paper, damp paper or thick media can cause the problem. (2) Check that the appropriate media type is selected in the printer driver. (3) The problem may disappear by itself. Try printing multiple pages to clear this problem especially if the printer has not been used for a long time.

  • Page 154: Faulty Registration

    CHAPTER 6 TROUBLESHOOTING I-11 Faulty registration Possible cause Step Excessive paper load Print paper Rear resist sensor position incorrect I-12 Poor fixing Possible cause Step Print paper Toner sensing failure (When printing is faint.) Thermistor failure Low-voltage power supply PCB failure Check Is the paper loaded in the paper cassette more than...

  • Page 155: Image Distortion

    Secure the unit correctly and tighten the screws. Replace the laser unit. Connect the harness correctly. Check Result Place the printer on a flat surface. Remove and carefully shake the toner cartridge horizontally. Clean the scanner window with a soft dry cloth.

  • Page 156: White Spots

    Is the problem solved after changing to specified freshly unpacked paper? Does the problem still appear after the printer has warmed 6-34 Result Remedy 1) If toner or glue remains stuck, wipe it off gently with a cotton swab.
  • Page 157 NOTE: Clean the drum unit as follows: (1) Remove the toner cartridge from the drum unit Place the printing samples in front of the drum unit, and find the exact position of the image defect. (2) Turn the drum gear by hand while looking at the surface of the photosensitive drum. (3) Wipe the surface of the photosensitive drum with a cotton swab until the dust or paper powder on the surface comes off.

  • Page 158: Black Spots

    CHAPTER 6 TROUBLESHOOTING I-16 Black spots User Check (1) If the problem is not solved after printing a few pages, the drum unit may have glue from label stock on the photosensitive drum surface. Refer to Step 1 in the table below and (2) The drum unit may be damaged.

  • Page 159: Gray Background

    User Check (1) Check the paper used meets the recommended paper specifications. (2) Select the ‘Thick paper mode’ in the printer driver, or use thinner paper than you are currently using. (3) Check the printer’s environment, conditions such as high humidity may cause this situation to occur.

  • Page 160: Downward Fogging Of Solid Black

    CHAPTER 6 TROUBLESHOOTING I-20 Downward fogging of solid black Possible cause Step Toner cartridge failure High-voltage power supply PCB failure I-21 Horizontal lines Possible cause Step Paper feed roller Paper cassette contacts Check Is the problem solved after replacing the toner cartridge? Is the problem solved after replacing the high-voltage power supply PCB?
  • Page 161 (2) Check the printer’s environment. High temperature and high humidity conditions can cause the problem. (3) Check that the appropriate media type is selected in the printer driver. (4) Try installing a new drum unit. Possible cause...

  • Page 162: Toner Specks

    CHAPTER 6 TROUBLESHOOTING I-24 Toner specks User Check (1) Check the paper used meets the recommended paper specifications. A rough surfaced paper may cause the problem. (2) The toner cartridge may be damaged. Install a new toner cartridge. (3) The drum unit may be damaged, or may be nearly at the end of life. Install a new drum unit.

  • Page 163: Location Of Grounding Contacts

    Location of Grounding Contacts 7.3.1 Drum unit Grid Development roller Photosensitive drum Transfer roller 7.3.2 Printer body & Paper cassette Drum Unit Charge Fig. 6-10 Grid Charge Fig. 6-11 6-41 CHAPTER 6 TROUBLESHOOTING Wire cleaner Photosensitive drum Development roller Transfer roller...

  • Page 164: Incorrect Printout

    The printer prints unexpectedly or it prints garbage. User Check (1) Check if the printer cable is not too long. It is recommended to use a parallel cable of less than 2 meters (6.6 feet) in length. (2) Check that the printer cable is not damaged or broken. Check also that the printer cable is connected to the correct interface connectors of both the printer and PC.
  • Page 165 NOTE: This problem may appear if the data is too complex. For the HL-1240 printer, if it is not cleared by taking the actions above, it will be impossible to print such data under the printer specifications. For the HL-1250/1270N printer, take the following procedures.
  • Page 166 HL-1270N: HP LaserJet 6P, Brother BR-Script Level 2, Epson FX-850, IBM Proprinter XL Try setting the printer into HP emulation and then select the HP LaserJet IIP (for HL-1240) or HP LaserJet 6P (for HL-1250/1270N) printer in the application software.

  • Page 167: Network Problem (For Hl-1270N Only)

    If the test fails, check: a) If the Alarm LED on the printer front panel is ON or blinking and all of the LEDs on the back panel - near the UTP (Ethernet) connector - are OFF, or the Orange (F) LED is blinking, then the network firmware settings may be corrupted.

  • Page 168: Intermittent Problem

    (a process known as filtering); therefore, such a bridge must be configured to allow Brother print server addresses. Likewise, a router can be set up to pass only certain protocols, so be sure that the desired protocol can be passed through to the print server.

  • Page 169: Tcp/Ip Troubleshooting

    (i.e., the “#” is removed from the bootp entry) in the /etc/bootptab file is correctly configured. (6) Also verify that host computer and the print server are on the same subnet, if the printer is on a different subnet, make sure that the router is configured correctly and ensure that the GATEWAY address is configured to match the IP address of the router.

  • Page 170: Windows Nt/Lan Server (Tcp/Ip) Troubleshooting

    If you are having trouble printing on a Windows 95/98 (or later) Peer to Peer network (LPR method), check the following: (1) Make sure that the Brother LPR Port driver is correctly installed and configured according to the Windows 95/98 Peer to Peer chapters in the Network User’s Guide.

  • Page 171: Windows 95/98 (Or Later) Peer To Peer (Hp Jetadmin Compatible Method) Troubleshooting

    If you are having trouble printing on a Windows 95/98/NT 4.0 (or later) Peer to Peer network (NetBIOS), check the following: (1) Make sure that the Brother NetBIOS Port driver is securely installed and configured according to the Windows 95/98/NT 4.0 Peer to Peer (NetBIOS) chapters. You may find that during the installation of the port driver, the screen that prompts you for a Port name is not displayed.

  • Page 172: Novell Netware Troubleshooting

    If you cannot print from NetWare and you have checked the hardware and network as described in the previous steps, first verify that the Brother print server is attached to the server queue by going to PCONSOLE, selecting PRINT QUEUE INFORMATION, and then CURRENTLY ATTACHED SERVERS.

  • Page 173: Apple Tcp/Ip Printing (System 8.6 Or Later)

    Chooser it may simply be caused by the lack of PostScript support in the printer. For example, connecting a Brother HL-1250 printer to a network using the Brother NC-2010p, will result in the printer NOT appearing in the Chooser as the HL-1250 printer does not support PostScript.

  • Page 174: Inspection Mode

    Data For the demo printer Once you have sent any data from a PC to a demo printer to print, the demo printer turns into a normal printer. Follow the procedures below to return it to being a demo printer;...

  • Page 175: Inspection Mode

    (2) Enter the following command in the DOS box, then press the Enter key. Copy <demo file> lpt1:/b (3) When the file transfer finishes, turn the printer power off and then turn it on again. (4) Press the panel button, the demo page printing starts.
  • Page 176 CHAPTER 6 TROUBLESHOOTING Factory inspection mode The factory inspection mode is used to check if the sensors in the printer are functioning correctly. In the process of this inspection, the LEDs and the control panel button are also checked. On entering this mode, the LEDs show the status of the respective sensors as shown in the figure below;...
  • Page 177 The procedure for the factory inspection mode is as follows. (1) Turn off the printer power switch, open the front cover, and remove the drum unit. (2) Turn on the printer power switch while holding down the control panel button. The Drum LED comes ON.
  • Page 178 Check that the Data LED stays OFF. (10) Release the panel button. (11) If all the sensors except the toner sensor are correct, the printer goes back to the Ready status. If any error is detected, the printer stays in the inspection mode.

  • Page 179: Serial No. Descriptions

    < ID for factory > Kariya Plant Buji Nan Ling Factory (1) Printer ...printed on the label attached on the rear of the main body (2) Process unit ...imprinted on the aluminum bag (Drum unit with toner cartridge) (3) Drum unit ...printed on the bar code label attached inside the drum unit...
  • Page 180 E 9 0 0 1 0 2 MONTH YEAR SERIAL NO. F 9 9 6 0 0 1 9 9 MONTH YEAR FACTORY ID NO. 2 1 0 0 1 ID NO. 1: HL-1030/1240/1250/1270N FACTORY ID NO. 2: Buji Nan Ling Factory SERIAL NO. DATE NO.

  • Page 181: Diameter / Circumference Of Rollers

    APPENDIX 2. DIAMETER / CIRCUMFERENCE OF ROLLERS The diameter and circumference of each roller are listed below; Parts Name Paper Feed Roller Transfer Roller Photosensitive Drum Heat Roller Pressure Roller Development Roller Diameter (Circumference) 14.0 mm (44.0 mm) 15.20 mm (47.7 mm) 29.97 mm (94.1 mm) 25.0 mm (78.5 mm) 20.0 mm (62.8 mm)

  • Page 182: Print Speeds With Various Settings

    APPENDIX 3. PRINT SPEEDS WITH VARIOUS SETTINGS Print speed of the HL-1240/1250/1270N printers is up to 12 ppm when loading A4 or Letter size paper from the paper cassette in the Regular mode. Actual print speed varies depending on the media type or paper size as shown in the tables below;...

  • Page 183: How To Know Drum Unit Life & Page Counter

    4. HOW TO KNOW DRUM UNIT LIFE & PAGE COUNTER If you want to know the drum unit life or the number of printed pages, you should print out the Print Configuration page for the HL-1240/1250/1270N printer, or print out the Test Print page for the HL-1030.
  • Page 184 Test Print (for HL-1030 only) (1) Turn on the power switch of the printer while pressing the printer control panel button. (2) Release the panel button when the Drum LED comes on. (3) Press the panel button again and release it when the Drum LED comes on.
  • Page 185 Since the drum counter printed in Print Configuration (HL-1240/1250/1270N) or Test Print (HL- 1030) is an actual page counter after a new drum unit is replaced, the drum unit life may be different from the drum counter.
  • Page 186 The page counter is shown at the right upper corner in Print Configuration (HL- 1240/1250/1270N), or at the bottom center in Test Print (HL-1030). It is also shown in the upper line on the right below the drum life bar and indicates the number of printed pages in units of 1 and 1,000.
  • Page 187 NOTE: The 17-digit number is also shown in the Printer Information dialog box which is one of the self- diagnostics tools. For details, refer to To obtain the maintenance information, you need to obtain and load the Maintenance Information utility which supplied on Service Databank by following the steps below;...
  • Page 188 APPENDIX If the printer is connected to a parallel port, you can take the following steps; (1) Open the Maintenance Information utility, then select ‘Get the Information’ in the menu. (2) Select the LPT port you are using and click the OK button.

  • Page 189: How To Use The Self-Diagnostics Tools

    The following sections describe the details on each tool. Troubleshooting for Printer won’t print This tool instructs you how to clear the problem such as ‘The printer can’t print’ or ‘The printer prints garbage or incorrect fonts’. (1) When you start the program, the Help dialog box shown below appears.
  • Page 190 This tool helps you to report your PC environment to investigate the cause of problem such as ‘Printer won’t print’ or ‘Printer prints garbage or incorrect fonts’. Before using this tool, however, you have to check if you can clear the problem using the ‘Troubleshooting for printer won’t print’ tool described in the previous section.
  • Page 191 (3) If you click the OK button in Step 2, the dialog box below appears. (4) Check the result that the printer reported and click the A, B or C button depending on the result. (5) The created log file is shown on the PC screen. (The software will ask whether you wish to print the log file or not.)

  • Page 192: Printer Information

    APPENDIX Printer Information The drum unit life or page counter is printed on Print Configuration (HL-1240/1250/1270N) or Test Print (HL-1030) in some countries as described in UNIT LIFE & PAGE This tool also shows the printer information such as printer version or page counter for all models only when the printer is connected to a parallel port.

  • Page 193: Nvram Default Value

    APPENDIX 6. NVRAM DEFAULT VALUE The default values for the main items to be set in NVRAM are as follows; Items Timing of Drum LED ON Development switching timing Fixing temperature Smaller size mode Descriptions 16,000 page (Counted from the drum unit life.) The developing bias is switched from 475V to 375V when 3,000 pages are printed.

  • Page 194: Paper Cassette Information (For Europe Only

    400 Unit. Failure to do so will cause paper jams as the paper cannot be fed from the lower cassette to the printer body because the plastic rib on the paper tray cover is blocking the paper path. (4) For paper cassettes supplied as spare parts, the plastic rib has been cut off so that you can use it as both an upper cassette and lower cassette.

  • Page 195: Connection Diagram, Hl-1030/1240

    Appendix 8. Connection Diagram, HL-1030/1240 AC INPUT POWER MAIN MOTOR SOLENOID PANEL PCB (light emission) FIXING UNIT INLET LVPS CN101 MOTOR ENGINE PCB REAR REGISTRATION SENSOR FRONT REGISTRATION SENSOR TONER SENSOR COVER SENSOR HALOGEN HEATER LAMP A - 17 PARALLEL I/F...

  • Page 196: Connection Diagram, Hl-1250

    Appendix 9. Connection Diagram, HL-1250 AC INPUT POWER MOTOR MAIN MOTOR SOLENOID PANEL PCB TONER SENSOR (light emission) COVER SENSOR FIXING UNIT INLET LVPS CN101 ENGINE PCB REAR REGIST SENSOR UPPER PAPER FRONT REGIST CASSETTE SENSOR SENSOR THERMISTOR HALOGEN HEATER LAMP A - 18 PARALLEL I/F RS-100M...

  • Page 197: Connection Diagram, Hl-1270N

    Appendix 10. Connection Diagram, HL-1270N AC INPUT POWER MOTOR MAIN MOTOR SOLENOID PANEL PCB TONER SENSOR (light emission) COVER SENSOR FIXING UNIT INLET LVPS CN101 ENGINE PCB REAR REGIST SENSOR UPPER PAPER CASSETTE FRONT REGIST SENSOR SENSOR THERMISTOR HALOGEN HEATER LAMP A - 19 RJ45 (Ethernet) NETWORK BOARD...

  • Page 198: Main Pcb Circuit Diagram, Hl-1030/1240 (1/2

    Appendix 11. Main PCB Circuit Diagram, HL-1030/1240 (1/2) CODE UK4352000 NAME B512040CIR (1/2) A - 20...

  • Page 199: Main Pcb Circuit Diagram, Hl-1030/1240 (2/2

    Appendix 12. Main PCB Circuit Diagram, HL-1030/1240 (2/2) CODE UK4352000 NAME B512040CIR (2/2) A - 21...

  • Page 200: Main Pcb Circuit Diagram, Hl-1250/1270N (1/5

    Appendix 13. Main PCB Circuit Diagram, HL-1250/1270N (1/5) CODE UK4361000 NAME B512049CIR (1/5) A - 22...

  • Page 201: Main Pcb Circuit Diagram, Hl-1250/1270N (2/5

    Appendix 14. Main PCB Circuit Diagram, HL-1250/1270N (2/5) CODE UK4361000 NAME B512049CIR (2/5) A - 23...

  • Page 202: Main Pcb Circuit Diagram, Hl-1250/1270N (3/5

    Appendix 15. Main PCB Circuit Diagram, HL-1250/1270N (3/5) CODE UK4361000 NAME B512049CIR A - 24...

  • Page 203: Main Pcb Circuit Diagram, Hl-1250/1270N (4/5

    Appendix 16. Main PCB Circuit Diagram, HL-1250/1270N (4/5) CODE UK4361000 NAME B512049CIR (4/5) A - 25...

  • Page 204: Main Pcb Circuit Diagram, Hl-1250/1270N (5/5

    Appendix 17. Main PCB Circuit Diagram, HL-1250/1270N (5/5) CODE UK4361000 NAME B512049CIR (5/5) A - 26...

  • Page 205: Engine Pcb Circuit Diagram (Old

    Appendix 18A. Engine PCB Circuit Diagram (OLD) CODE UK4444000 NAME B512059CIR A - 27...

  • Page 206: Engine Pcb Circuit Diagram (New

    Appendix 18B. Engine PCB Circuit Diagram (NEW) CODE UK4444000 NAME B512059CIR A - 28...

  • Page 207: Network Board Circuit Diagram

    Appendix 19. Network Board Circuit Diagram, HL-1270N CODE LJ8107000 NAME B512058CIR A - 29...

  • Page 208: Low-Voltage Power Supply Pcb Circuit Diagram (110 - 120V)

    Appendix 20. Low-voltage Power Supply PCB Circuit Diagram (110 - 120V) TRA1 C109 D101 D102 Cosc BEA101 R112 C110 C112 R213 Q201 L201 R201 R205 R212 C205 D203 C203 R211 C202 R207 REF1 IC101 CN101 HEAT ON 1,3,4 Low-voltage PS Circuit NAME (110 - 120V) A - 30...

  • Page 209: Low-Voltage Power Supply Pcb Circuit Diagram (220 - 240V)

    Appendix 21. Low-voltage Power Supply PCB Circuit Diagram (220 - 240V) TRA1 C109 D101 D102 R213 R201 C202 R207 Cosc IC101 BEA101 R112 C110 C112 Q201 L201 R205 R212 C205 D203 C203 R211 REF1 NAME CN101 HEAT ON 1,3,4 Low-voltage PS Circuit (220 - 240V) A - 31...

  • Page 210: High-Voltage Power Supply Pcb Circuit Diagram (Old

    Appendix 22A. High-voltage Power Supply PCB Circuit Diagram (OLD) R125 R124 R123 R134 R127 R126 R105 R104 C101 R106 VR101 C108 R102 R128 C102 R107 D101 C107 C103 C105 R131 R130 C104 R133 R132 C106 R113 R112 R110 R109 R121 D108 R120 R122...

  • Page 211: High-Voltage Power Supply Pcb Circuit Diagram (New

    Appendix 22B. High-voltage Power Supply PCB Circuit Diagram (NEW) R125 R124 R123 R134 R127 R126 R105 R104 C101 R106 VR101 C108 R102 R128 C102 R107 D101 C107 C103 C105 R131 R130 C104 R133 R132 C106 R113 R112 R110 R109 R121 D108 R120 R122...

  • Page 212: Differences Between Old & New Versions Of Hvps & Engine Pcb

    APPENDIX APPENDIX 23. DIFFERENCES BETWEEN OLD & NEW VERSIONS OF HVPS & ENGINE PCB The high-voltage power supply PCB and engine PCB have been upgraded since the production in the middle of September, 1999 in order to improve print quality. In accordance with the change, the T/R electrode helical spring and plastic chute have been also changed.
  • Page 213 CPU Runtime Error... 6-5, 6-22 creases ... 6-12 curl ... 6-13 dark ... 6-25 Data LED ... 2-14 demo printer... 6-52 development roller ... 3-21, 3-27 diameter... A-3 dimensions... 1-7 dirt on the back of paper ... 6-28 disassembly flow... 4-2 double feeding ...
  • Page 214 6-31 image distortion... 6-33 incorrect printout ... 6-42 inspection mode... 6-53 installation drum unit ... 2-5 printer ... 2-3 printer driver ... 2-6 USB driver... 2-7 insufficient output from high-voltage power supply unit ... 6-20 interface ... 1-6...
  • Page 215 LAN Server...6-48 Laser BD Malfunction ...6-5, 6-7 laser unit...4-15 LED...2-18 light ...6-24 light rain ...6-39 link ...4-17 lock lever ...4-8 low-voltage power supply ...3-19 low-voltage power supply PCB...3-22, 4-30 circuit diagram ...A-30 - A-31 lower tray relay PCB...4-29 main cover...4-13 main motor...3-22, 4-16 main motor does not rotate ...6-19 MAIN MOTOR ERROR ...6-7...
  • Page 216 Ready LED ...2-13 rear cover ...1-4, 4-14 rear registration sensor ...3-23 rear registration sensor lever ... 3-21 recommended paper... 1-9 Remote Printer Console ... 1-2 reset IC ... 3-16 resolution ... 1-1, 1-5 RESOLUTION ADAPTED ... 6-6, 6-8 ROM ... 3-10 ROM code reprogramming mode ...
  • Page 217 TCP/IP ...6-47 temperature ...1-7 test page...2-5 test print mode...2-16, 6-52 Test Sample Page ...6-52 thermistor ... 3-21, 3-28, 4-25 toner cartridge ...3-25 life ...1-5, 5-2 TONER EMPTY ...6-6 Toner LED ...2-14 TONER LOW...6-6 toner sensor ...3-21, 3-25 toner sensor PCB ...3-22 light emission ...4-37 light reception...4-37 toner specks ...6-40...
  • Page 218 INDEX...

  • Page 219: Parts Reference List

    Brother Laser Printer PARTS REFERENCE LIST MODEL: HL-1030/1240/1250/1270N Read this list thoroughly before maintenance work. Keep this list in a convenient place for quick and easy reference at all times. September, 1999 PL-PRN001...
  • Page 220 NOTE 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 (4) Symbol ( PCB No., Revision , and Parts location mounted on the PCB.) Note : No orders without Parts Code or Tool No.
  • Page 221 FRAME / DRIVE UNIT ... 1 LASER UNIT... 1 PAPER FEEDER ... 3 FIXING UNIT... 5 PAPER CASSETTE... 7AB COVERS... 9 MAIN PCB... 11 ENGINE PCB... 13 LOW-VOLTAGE POWER SUPPLY PCB... 13 10. HIGH-VOLTAGE POWER SUPPLY PCB... 15 11. AC CORDS ... 15 12.

  • Page 222: Frame / Drive Unit

    1 USB GROUND PLATE, HL-1270 UL8970001 1 SOLENOID RELEASE SPRING 30/99 LJ5591001 1 PLANET GEAR ASSY (SP) UL8985001 1 GEAR 59 MODEL HL-1030/1240/1250/1270/1270N 84U-Z04/Z01/Z02/Z05/Z03-010 T/I NO. PR99165 / PR2000014 / PR2000073 / PR2000132 / PR2000152 / PR2001023 2. LASER UNIT REF.NO. CODE Q'TY LJ4157001...
  • Page 223 1. FRAME / DRIVE UNIT MODEL T/I NO. PR99165 / PR2000014 / PR2000073 / PR2000152 / PR2001023 2. LASER UNIT MODEL HL-1030/1240/1250/1270/1270N 84U-Z04/Z01/Z02/Z05/Z03-010 HL-1030/1240/1250/1270/1270N 84U-Z04/Z01/Z02/Z05/Z03-020 - 2 - PR2001023...

  • Page 224: Paper Feeder

    2) The old version of the TR electrode helical spring, (UL9071001) should be used for HL-1240/1250 whose serial No. is before the number above and the numbers in the range of J9J212235 - J9J217459 & J9J219423 - J9J219997. 3) The old and new versions of the TR electrode helical spring are incompatible with each other.
  • Page 225 3. PAPER FEEDER PR2000130 MODEL HL-1030/1240/1250/1270N 84U-Z04/Z01/Z02/Z03-045/047 T/I NO. PR2000051 / PR2000108 / PR2000130 - 4 -...

  • Page 226: Fixing Unit

    1 PAPER EJECT ACTUATOR 1-15 UL8921001 1 EJECT ACTUATOR SPRING 1-16 UL8914001 1 IDLE GEAR 13 087320815 1 TAPTITE, CUP S M3X8 LJ4740001 2 SHOULDER SCREW MODEL HL-1030/1240/1250/1270/1270N 84U-Z04/Z01/Z02/Z05/Z03-050/051 T/I NO. PR99179, PR99186, PR2000029, PR2000057, PR2000157 DESCRIPTION - 5 - REMARK...
  • Page 227 4. FIXING UNIT 1-10 1-11 1-10 1-12 1-12 1-12 1-14 1-12 1-15 1-13 MODEL HL-1030/1240/1250/1270/1270N 84U-Z04/Z01/Z02/Z05/Z03-045/047 T/I NO. PR2000029 / PR2000057 - 6 -...
  • Page 228 1-21 LJ4221001 1 SCRATCH SPONGE HOLDER ASSY 1-22 LJ4200001 2 SCRATCH SPONGE SPRING 1-23 LJ4865001 1 MYLAR LABEL 1240 TRAY MODEL HL-1030/1240/1250/1270/1270N 84U-Z04/Z01/Z02/Z05/Z03-045 T/I NO. PR2000066 / PR2000127 5-2. PAPER CASSETTE, A4 REF.NO. CODE Q'TY LJ4181001 1 PAPER TRAY ASSY, A4 (SP)
  • Page 229 1 TAPTITE, TORX PAN B M3X8 1-20 LJ4272001 1 TRAY COVER FILM 1-21 LJ4221001 1 SCRATCH SPONGE HOLDER ASSY 1-22 LJ4200001 2 SCRATCH SPONGE SPRING MODEL HL-1240/1250/1270N 84U-Z06/Z07/08-043 T/I NO. PR99179 / PR2000127 DESCRIPTION MODEL HL-1240 84U-Z01-049 DESCRIPTION - 7B - REMARK REMARK...

  • Page 230: Paper Cassette

    5. PAPER CASSETTE 1-11 1-13 1-16 1-21 1-10 1-12 1-22 1-15 1-23 1-14 1-17 1-18 1-20 1-19 MODEL HL-1030/1240/1250/1270N 84U-Z04/Z01/Z02/Z03-045/047 T/I NO. PR2000066 / PR2000127 - 8 -...

  • Page 231: Covers

    LJ4460001 1 MODEL PLATE 2312P LJ4496001 1 MODEL PLATE 2412P LJ4724001 1 MODEL PLATE 8212N LJ4772001 1 MODEL PLATE HL-1240 WIP LJ4846001 1 MODEL PLATE HL-1250 WIP LJ4848001 1 MODEL PLATE HL-1270N WIP UL6740001 1 LASER CAUTION LABEL, EUR UL7931001...
  • Page 232 6. COVERS MODEL HL-1030/1240/1250/1270N 84U-Z04/Z01/Z02/Z03-060 T/I NO. PR2000066 / PR2000075 / PR2000108 / PR2000129 - 10 -...
  • Page 233 Q'TY LJ8239001 1 MAIN PCB ASSY, HL-1030 (SP) LJ8066001 1 MAIN PCB ASSY, HL-1240 (SP) LJ8067001 1 MAIN PCB ASSY, HL-1240 HEB (SP) LJ8251001 1 MAIN PCB ASSY, HL-1240 PB (SP) LJ8160001 1 MAIN PCB ASSY, 2312P LEG (SP) LJ8318001...

  • Page 234: Main Pcb

    7.MAIN PCB HL-1030 HL-1240 HL-1250 HL-1270/1270N MODEL HL-1030/1240/1250/1270N 84U-Z04/Z01/Z02/Z03-101/103 T/I NO. PR99165 / PR2000124 - 12 -...

  • Page 235: Engine Pcb

    1) The new versions of the engine PCB, ENGINE PCB ASSY B, 1250/1270 (LJ8158001) printers and the HL-1240/1250 printers whose serial No. is the following number or later; HL-1240: J9J211817 - (EXCEPT J9J212235 - J9J217459, J9J219423 - J9J219997) HL-1250: J9J221758 -...
  • Page 236 8. ENGINE PCB MODEL HL-1030/1240/1250/1270N 84U-Z04/Z01/Z02/Z03-151 9. LOW-VOLTAGE POWER SUPPLY PCB MODEL HL-1030/1240/1250/1270N 84U-Z04/Z01/Z02/Z03-200/201 T/I NO. PR99188 / PR2000113 - 14 -...

  • Page 237: High-Voltage Power Supply Pcb

    2) The old version of the high-voltage power supply PCB, (LJ4176001) should be used for HL-1240/1250 whose serial No. is before the number above and the numbers in the range of J9J212235 - J9J217459 & J9J219423 - J9J219997. 3) The old and new versions of the high-voltage power supply PCB are incompatible each other.
  • Page 238 MODEL 11. AC CORD MODEL T/I NO. PR99179 / PR2000055 HL-1030/1240/1250/1270N 84U-Z04/Z01/Z02/Z03-220 HL-1030/1240/1250/1270N 84U-Z04/Z01/Z02/Z03-23 0 - 16 -...

  • Page 239: Accessories

    LJ8161001 1 PR DRIVER DISK ASSY 1, HL-1030 LJ8162001 1 PR DRIVER DISK ASSY 2, HL-1030 UK4387001 1 PR DRIVER DISK ASSY 1, HL-1240 UK4392001 1 PR DRIVER DISK ASSY 2, HL-1240 UK4390001 1 PR DRIVER DISK ASSY 1, HL-1250...
  • Page 240 12. ACCESSORIES MODEL HL-1030/1240/1250/1270/1270N 84U-Z04/Z01/Z02/Z05/Z03-920 T/I NO. PR99165 / PR2000022 / PR2000024 / PR2000055 - 18 -...

  • Page 241: Packing Materials

    13. PACKING MATERIALS REF.NO. CODE Q'TY LL0125001 1 CARTON, HL-1030 EU LL0124001 1 CARTON, HL-1030 CAN UE0818001 1 CARTON, HL-1240 US UE0822001 1 CARTON, HL-1240 CAN UE0820001 1 CARTON, HL-1240 EU LL0014001 1 CARTON, HL-1250 US LL0015001 1 CARTON, HL-1250 CAN...
  • Page 242 13. PACKING MATERIALS MODEL HL-1030/1240/1250/1270N 84U-Z04/Z01/Z02/Z03-930 14. NETWORK BOARD MODEL HL-1270N 84U-Z03-150 T/I NO. PR99165 - 20 -...

  • Page 243: Adjusting Tool

    15. ADJUSTING TOOL PRT-402 PRT-001f TOOL NO. TOOL NAME REMARK TORX SCREW DRIVER PRT-402 PRT-001f MOLYKOTE PG-662 MODEL HL-1030/1240/1250/1270N 84U-Z04/Z01/Z02/Z03 T/I NO. PR99165 - 21 -...

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