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Brother Color Laser Printer SERVICE REFERENCE MANUAL MODEL: HL-4040CN/4040CDN/ 4050CDN/4070CDW Read this manual thoroughly before maintenance work. Keep this manual in a convenient place for quick and easy reference at all times. January 2007 SM-PRN060 (10) Confidential...
(hereinafter referred to as "the machine"). This information is vital to the service personnel to maintain the high printing quality and performance of the machine. This service reference manual covers the HL-4040CN/4040CDN/4050CDN/4070CDW machines. This manual consists of the following chapters:...
REFERENCE 1 SPECIFICATIONS COMPONENTS The equipment consists of the following major components: LCD panel PCB ASSY Top cover ASSY Paper eject ASSY DX/SX Back cover upper Top cover panel ASSY Back cover ASSY Transfer HVPS PCB unit Belt unit drive motor ASSY Laser unit Side cover R ASSY Fuser unit...
SPECIFICATIONS LIST Printing Model HL-4040CN HL-4040CDN HL-4050CDN HL-4070CDW Print method Electrophotography by semiconductor laser beam scanning Laser Method: 1 polygon motor, 4 laser beams Wavelength: 780nm~800nm Output: 30mW (Max) Resolution 2400dpi Windows 2000/XP/ XP Professional x64 Edition, Windows ...
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Model HL-4040CN HL-4040CDN HL-4050CDN HL-4070CDW Consumables Belt unit Life expectancy: 50,000pages/ belt unit Life expectancy will vary depending on number of continuous printing pages. (Refer to “Life of Belt Unit” in Chapter 5, “2.3 Printout of Printer Settings” of the Service Manual.) * when printing A4/ Letter-size paper.
Functions <Controller> Model HL-4040CN HL-4040CDN HL-4050CDN HL-4070CDW 300MHz Memory Standard 64MB Option 1 DIMM slot; expandable up to 576MB Interface Hi-Speed USB 2.0, 10BASE- Hi-Speed Hi-Speed T/100BASE-TX Ethernet USB 2.0, USB 2.0, IEEE 1284 IEEE 1284 Parallel, Parallel, 10BASE- 10BASE-...
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BRScript3 printer driver) The data including JBIG2 image file, JPEG2000 image file and layered files are not supported. HL-4040CN cannot print PRN files of duplex printing which are created by HL-4040CDN, HL- 4050CDN or HL-4070CDW printer driver. <System requirements> Computer Platform & Operating...
Electronics and Mechanics Model HL-4040CN HL-4040CDN HL-4050CDN HL-4070CDW Power Printing Average 510W at 25°C (77°F) consumption Standby Average 85W at 25°C (77°F) Sleep Average 20W at 25°C (77°F) Average 23W at 25°C (77°F) Noise level Sound Printing: 54dB(A) Pressure Standby: 30dB(A) Sound power Monochrome printing: LWAd = 6.6Bell(A)
Minimum PowerPC G4/G5, Intel Core™ Solo/Duo, Processor Processor PowerPC G3 350MHz Minimum RAM 128MB Recommended 160MB Operating Mac OS X 10.2.4 or greater system If you want to use the IPv6 protocol, visit http://solutions.brother.com for more information. Confidential Ref.1-7...
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Data rates 802.11b 11/5.5/2/1 Mbps 802.11g 54/48/36/24/18/12/11/9/6/5.5/2/1 Mbps A wireless network connection is supported only between the Brother printer and an access point for PC’s running Windows XP Professional x64 Edition and Windows Server 2003 x64 Edition.
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Windows NT 4.0, Windows 2000 Professional / Server / Advanced Server, Windows Professional/XP Professional x64 Edition, Windows Vista , Windows Server 2003/2003 x64 Edition BRAdmin Professional and Web BRAdmin are available as a download from http://solutions.brother.com Confidential Ref.1-9...
Service Information These are key service information to maintain the product. Machine life: 200,000pages or 5years MTBF (Meantime between failure): Up to 4,000hours MTTR (Meantime to repair): Average 30minutes Monthly volume: 35,000pages Periodical replacement parts: Parts Approximate Life Fuser unit & Toner filter frame ASSY 80,000pages Laser unit 100,000pages...
Paper 2.6.1 Paper handling Model HL-4040CN HL-4040CDN HL-4050CDN HL-4070CDW Paper Input Multi-purpose 50sheets tray Paper tray (T1) 250sheets Lower tray (LT) 500sheets Paper Face-down 150sheets Output * Duplex Manual Duplex Automatic Duplex * Calculated with 80g/m (20lb) paper 2.6.2 Media specifications...
2.6.3 Type and size of paper The printer loads paper from the installed paper tray or the multi-purpose tray. The names for the paper trays in the printer driver as follows; Paper tray (T1) Tray 1 Multi-purpose tray (MP) MP Tray Optional lower tray unit (LT) Tray 2 (for HL-4050CDN/4070CDW)
Printable Area 2.7.1 PCL5e emulation When using PCL emulation, the edges of the paper that cannot be printed on are shown below. Portrait Physical page Printable area Logical page Physical page length Maximum logical page length Distance from edge of physical page to edge of logical page Note: - “Logical page” shows the printable area for a PCL driver. - “Printable area”...
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The table below shows the printable areas when printing on Portrait for each paper size. Size 215.9mm 279.4mm 203.2mm 279.4mm 6.35mm 4.2mm Letter 8.5” 11.0” 8.0” 11.0” 0.25” 0.16” (2,550dots) (3,300dots) (2,400dots) (3,300dots) (75dots) (50dots) 215.9mm 355.6mm 203.2mm 355.6mm 4.2mm Legal 8.5”...
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Landscape Physical page Printable area Logical page B Physical page length D Maximum logical page length F Distance from edge of physical page to edge of logical page Note: - “Logical page” shows the printable area for a PCL driver. - “Printable area” shows mechanical printable area of the machine. - Therefore, the machine can only print within the shaded area when you use a PCL driver. Confidential Ref.1-15...
The table below shows the printable areas when printing on Landscape for each paper size. Size 279.4mm 215.9mm 269.3mm 215.9mm 5.0mm 4.2mm Letter 11.0” 8.5” 10.6” 8.5” 0.2” 0.16” (3,300dots) (2,550dots) (3,180dots) (2,550dots) (60dots) (50dots) 355.6mm 215.9mm 345.5mm 215.9mm 4.2mm Legal 14.0”...
Print Speeds with Various Settings Print speed is up to 20ppm for A4 size and 21ppm for Letter size when loading A4 or Letter size paper from the paper tray in the plain paper mode. Actual print speed varies depending on the media type or paper size as shown in the tables below;...
3.2.1 Plate-up Function of the Paper Tray The plate of the paper tray is pushed up by the force exerted by the motor not by springs so as to keep paper-feeding performance constant irrespective of the quantity of papers remaining in the tray.
3.2.2 Paper Supply The T1 paper feed roller picks up a few sheets or one sheet of paper from the paper tray every time it is rotated and feeds it to the T1 separation roller. Subsequently, stacks of paper are caught between the T1 separation roller and T1 separation pad, they are then separated into single sheets.
3.2.3 Paper Registration The front-edge position of a sheet of paper after separation by the separation roller is detected by the T1 registration front actuator. Then, the paper is fed further for a certain time, and its front edge hits the stopped registration roller so that the paper skew is corrected. After such correction, the registration roller is rotated in the normal direction and the paper is carried to the belt unit.
3.2.4 Paper Eject Toner on paper is fused by the heat roller and pressure roller ASSY of the fuser unit. Paper moves along the outer chute and is ejected into the face-down output tray from the paper eject roller shaft ASSY with its print side down. Paper eject roller shaft ASSY Outer chute Fuser unit...
3.2.5 Paper Feeding for Duplex Printing (DX) (HL-4040CDN/ 4050CDN/ 4070CDW only) After the paper eject actuator detects the edge of the paper and a certain volume of paper is sent from the paper eject roller shaft ASSY, it rotates against the normal direction of rotation, thereby enabling the paper to be pulled in and pass between the outer chute and the back cover.
3.2.6 Paper Feeding from the MP Tray (MP) When the MP paper feed roller making contact with paper is driven, the paper is drawn out of the MP tray. The drawn paper is separated into individual sheets by the MP separation roller. MP registration front actuator MP tray MP paper feed roller...
3.2.7 Paper Feeding from the Tray 2 (LT) (HL-4050CDN/ 4070CDW only) The driving force from the paper feed/belt cleaner motor is transmitted to the gear of tray 2 (LT) to rotate the LT paper feed roller so that the paper is fed. The paper is separated into individual sheets by the LT separation roller and fed to the machine.
Toner Cartridge 3.3.1 Methods for Detecting and Counting Toner Life “Toner Life End” is displayed through the following two ways. First, such indication is displayed when detection is performed by the toner sensor; second, it is displayed at the time when a rotation rate of the develop roller reaches its upper limit.
3.3.2 Toner Life End A new toner cartridge can print with standard toner approximately 2,500 (black), 1,500 (yellow, magenta, cyan), with high capacity toner, approximately 5,000 (black), 4,000 (yellow, magenta, cyan) in the case of A4 or Letter size single-sided pages at 5% coverage. If printing A4 paper at 5% print coverage or less, the “Toner Life End”...
3.3.3 New Toner Detection When a toner cartridge is changed, discrimination between new and secondhand toner cartridges is performed by means of the new toner detection mechanism shown below. <New Toner Detection Mechanism> The rotation of the gear (1) of the toner cartridge is transmitted to the reset gear, and the rib of the gear pushes down the reset upper lever attached to the drum unit.
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<Developing Bias Voltage> When the new toner detection mechanism detects the change to a new toner cartridge, the developing bias voltage is reset. Toner in use tends to have a low printing density at the time of first use, but the density gradually becomes higher after a certain period of use. The properties of the toner is controlled by means of the developing bias voltage.
Print 3.4.1 Principle of Color Overlapping The human eye distinguishes one color from others by receiving light’s three primary colors (Red, Green, Blue). When monochrome lights are received, each color can be sensed. However, when two-color lights, red (R) and green (G), are received, they are recognized as “yellow”;...
3.4.2 Basic Printing Principle The printing process consists broadly of 6 processes: Charging, Exposure, Development, Transfer, Fusing and Cleaning. 1. Charging: The surface of the drum is electrically charged (Primary Charge). 2. Exposure: A printed image is formed on the surface of the drum by applying laser beam (Electrostatic Latent Image).
3.4.3 Print Process 1. Charging The flow of the ion charge is controlled by the constant voltage of the grid 870 V to ensure it is distributed evenly on the drum surface. In order to coat toner on the exposure drum, the drum needs to be evenly electrified.
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2. Exposure Four laser beams radiated from a laser diode inside the laser unit are concentrated into a constant width by a slit in the CO lens cell and then reflected by a polygon mirror rotating at high speed. The evenly charged exposure drum is irradiated with reflected light and exposed. Surface potential is lowered by such exposure and an Electrostatic latent image is formed.
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3. Development Toner is attracted to the latent-image area on the exposure drum where surface potential is lowered due to exposure. By controlling the developing bias voltage supplied to the develop roller, the amount of toner taken to the drum is adjusted to keep printing density constant. Charging Laser beam 150 V...
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4. Transfer By applying a minus charge to the belt unit, the toner adhered to the exposure drum is transferred to paper. Exposure drum (K) Exposure drum (Y) Exposure drum (M) Exposure drum (C) EL PCB (K) EL PCB (M) EL PCB (C) EL PCB (Y) Belt unit...
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5. Fusing The toner transferred on to the paper passes between the heat roller and the pressure roller ASSY in the fuser unit and are fused by heat and pressure. The thermistor detects surface temperature of the heat roller and turns ON/OFF the halogen heater lamp to keep the temperature constant.
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6. Toner cleaning (1) Toner remaining on the exposure drum which has not completely been transferred on to the paper is pulled onto the cleaning roller with a lower potential and the drum is cleaned. (2) After the above step, the potential of the roller is raised during printing, and such attracted toner is returned to the drum again.
3.4.4 Switch between Color Print Mode and Monochrome Print Mode By switching the mode between color print and monochrome print to avoid unnecessary load on the toner cartridges and keep the specified product life, the rotation and press/release operations of the develop roller are controlled, and the print operation is executed. <Rotation of the develop roller>...
APPENDIX 1 TONER CARTRIDGE WEIGHT INFORMATION Note: This information shows approximate weight of the toner cartridge. Toner weight is subject to change due to redesign of the machine. Depending on the serial number of toner cartridge, the weight of toner cartridge will be different. Refer to the table shown below for details.
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Table 2 High-capacity toner cartridge BK (5K) Y (4K) M (4K) C (4K) (TN-115, TN-135, TN-155) Brand New Toner Cartridge Weight 685g 681g 653g 670g (±10g) (±10g) (±10g) (±10g) Toner Weight at “Brand New Toner Cartridge” 150g 146g 118g 135g Toner Cartridge Weight at “Toner Near Empty”...
APPENDIX 2 REFERENCES This page provides reference information. It is possible to get the full instructions of the subjects by just clicking on the links below. 1. Error codes (Refer to “2.1 Error Indication”, Chapter 1 of the Service Manual.) 2.
APPENDIX 3 GLOSSARY ACRONYMS AND TECHNICAL TERMS In this manual and the Service Manual, the manual specific acronyms and technical terms are used in addition to the generally used ones. The table below contains typical acronyms and technical terms that are used throughout these manuals. APIPA Automatic Private IP Addressing LCD Liquid Crystal Display...