Page 1: Service Manual
Brother Color Laser Printer SERVICE MANUAL MODEL: HL-2700CN Read this manual thoroughly before maintenance work. Keep this manual in a convenient place for quick and easy reference at all times. October 2005...
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 (here-in-after 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. This service manual covers the HL-2700CN color laser printer. This manual consists of the following chapters:...
Page 4: Table Of Contents
CONTENTS CHAPTER I PRODUCT OUTLINE .............I 1. FEATURES ......................I-1 2. PARTS NAMES & FUNCTIONS ..............I-4 3. INTERNAL STRUCTURE ................I-6 4. DESCRIPTION OF CONTROL PANEL ............I-7 4.1 Video Controller Mode ......................I-7 4.2 Engine Controller Mode ....................... I-7 CHAPTER II SPECIFICATIONS............II-1 1.
Page 5 2. STRUCTURE OF THE CONTROL SYSTEM..........IV-26 2.1 Basic Structure .........................IV-26 2.2 Control System.........................IV-34 2.3 Main PCB (Video Controller PCB) ...................IV-42 2.4 Power Supply Unit......................IV-56 2.5 High Voltage Power Supply Unit ..................IV-61 2.6 Wiring Diagram.........................IV-64 CHAPTER V CONTROL PANEL OPERATION ......V-1 1.
Page 6 CHAPTER VII DISASSEMBLY............VII-1 1. REPLACEMENT PROCEDURE OF MAINTENANCE PARTS..... VII-1 2. PARTS NAME....................VII-4 2.1 Cover..........................VII-4 2.2 Arrangement Boards ......................VII-5 2.3 Motor Units ........................VII-5 2.4 Clutches and Solenoids ....................VII-6 2.5 Sensors ..........................VII-6 3. DISASSEMBLY FLOW ................VII-7 4. DISASSEMBLY PROCEDURE ..............VII-11 4.1 OPC Charge Roller PU.....................VII-11 4.2 Paper Tray ........................VII-11 4.3 Fuser Unit .........................VII-12...
Page 7 4.34 Right Tray Guide PU.......................VII-36 4.35 Engine Control Board PU ....................VII-37 4.36 HV Power Supply PU......................VII-38 4.37 LV Power Supply PU / Power Supply Bracket PU Assy..........VII-39 4.38 Fuser Connector PU .......................VII-40 4.39 Toner Retract Solenoid PU (DESLY/DESLM/DESLC/DESLK) / Toner Retract Cam PU....................VII-41 4.40 Toner Sensor PU (TTR)....................VII-42 4.41 Toner Present Sensor PU....................VII-43 4.42 Belt Sensor ........................VII-43...
Page 8 4.1 Error Code ........................VIII-21 5. IMAGE FAILURE ..................VIII-59 APPENDIX A ..................A-1 1. SERIAL NO. DESCRIPTIONS ................ A-1 2. DIAMETER / CIRCUMFERENCE OF ROLLERS..........A-5 3. SHELF LIFE OF EACH CONSUMABLE ............A-6 4. CONSUMABLES REPLACEMENT..............A-7 5. RE-PACKING INSTRUCTIONS ..............A-9 6.
Page 9 REGULATIONS LASER SAFETY (FOR 110-120 V MODEL ONLY) This printer is certified as a Class I laser product under the U.S. 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 IEC 60825 SPECIFICATION (FOR 220-240 V MODEL ONLY) This printer is a Class 1 laser product as defined in IEC 60825 specifications. The label shown below is attached in countries where required. CLASS 1LASER PRODUCT APPAREIL Å LASER DE CLASSE 1 LASER KLASSE 1 PRODUKT This printer has a Class 3B Laser Diode which emits invisible laser radiation in the Scanner Unit.
Page 11: Safety Instructions
SAFETY INSTRUCTIONS SAFETY PRINCIPLE 1) Before starting any operations, read this manual thoroughly. Especially read the safety instructions in this section carefully and ensure that you understand the contents. 2) Perform all the operations by following the procedures described in this manual. Follow all the cautions and warnings set out in the procedures and on safety labels affixed to the machine.
Page 12 WARNING HAZARDOUS VOLTAGE May cause serious injuries or fatal accidents. Voltage is now applied from the power supply of printer. There is a danger of electrical shock if you touch the active area inside the printer. Be sure to turn the power supply switch OFF and pull the plug out from the power outlet before starting maintenance work on the printer.
Page 13 CAUTION HAZARDOUS POWDER Toner is a fine powder which can cause a powder explosion if disposed of into a fire. Under no circumstances dispose of toner into a fire. CAUTION HAZARDOUS POWDER Toner is a fine powder which may cause irritation to the eyes and respiratory organs if inhaled.
Page 14 CAUTION Do not lean against or apply any excessive force to the paper cassette, open cover of Duplex unit. Otherwise it may cause the product to decline or fall down and result in the injuries. Rear Cover Unit Front Door Lower Feeder Unit...
Page 15: Laser Caution Label
<Label Location> 1. Hot Caution Label 170 C/338 F 2. Laser Caution Label 7 8 0 n m - 8 0 0 n m DANGER- INVISIBLE LASER RADIATION WHEN OPEN. AVOID DIRECT EXPOSURE TO BEAM. VORSICHT- UNSICHTBARE LASERSTRAHLUNG, WENN ABDECKUNG GEÖFFNET UND SICHERHEITSVERRIEGELUNG ÜBERBRÜCKT.
Page 16 3. Rating Label (For Europe) 6.0A (For US) 11.0A viii...
Page 17: Shipment Of The Printer
SHIPMENT OF THE PRINTER If for any reason you must ship the printer, carefully package the printer to avoid any damage during transit. It is recommended that you save and use the original packaging. The printer should also be adequately insured with the carrier.
Page 18: Chapter Iproduct Outline
CHAPTER I PRODUCT OUTLINE...
Page 19: Features
This printer can print at speeds up to 31 pages per minute in monochrome mode and 8 pages per minute in full color mode. The HL-2700CN controller uses a high speed 64-bit RISC microprocessor and special hardware chips, to ensure fast print job processing.
Page 20 It is fully compatible with the industry-standard bi-directional parallel interface. HL-2700CN can use the TCP/IP, IPS/SPX, Apple Talk, DLC/LLC, Banyan VINES, DEC LAT and NetBEUI environments. Also, many useful utilities, such as BRAdminProfessional for the administrator and Brother network printing software, are included in the CD-ROM supplied with the HL-2700CN printer.
Page 21 Various Fonts The printer has 66 scalable and 12 bitmapped fonts. The fonts that can be used will vary according to the selected emulation mode. In PCL mode, you can also print the 13 kinds of bar codes listed below. In BR-Script mode, the printer has 35 scalable fonts. <...
Page 22: Parts Names & Functions
PARTS NAMES & FUNCTIONS <Front View> Top Cover Assy PU Rear Cover Assy PU Operator Panel Top Cover PU Paper Stopper Release Lever H Release Lever Front Cover PU Right Side Cover PU Paper Tray PU Fig.1-1 <Rear View> Upper Duplex Cover PU Rear Cover Assy PU Left Side Cover PU Lower Duplex Cover PU...
Page 23 Part Name Outline of Functions To act as both of the upper enclosure and paper Top Cover PU tray for printed papers, and to be opened up at the maintenance. Operator Panel To display a status of printer operation and motion.
Page 24: Internal Structure
INTERNAL STRUCTURE <Cross Sectional View > 4. Fusing Unit FU 2. Belt Cartridge PU 1. Toner Cartridge PU 3. Cleaning Roller PU (K,Y,M,C) Exit Roller Assy PU Rear Cover Assy PU 5. Transfer Base Assy PU 10. Laser Assy PU 7.
Page 25: Description Of Control Panel
DESCRIPTION OF CONTROL PANEL The printer control panel provides control of the printer including test printing, maintenance operations performed by the video controller and also the ones which are performed by the engine controller. The Video Controller Mode and the Engine Controller Mode have some common functions.
Page 26 Job Cancel BACK Fig.1-4 LED / Button Name LCD: 16 character by 2 lines Alarm LED Online LED Job Cancel Key Go Key - Key Set Key + Key Back Key...
Page 27: Chapter Ii Specifications
CHAPTER II SPECIFICATIONS...
Page 28: Rating
CHAPTER II SPECIFICATIONS RATING WARNING Use the power supply cable supplied with the printer, or a similar cable complying with the following specification (3-wire power cable with ground). Use of an “out of specification” cable may result in an electric shock. Destination Voltage (V) Frequency (Hz)
Page 29: General Specifications
600 x 600 dpi 600 x 600 dpi with CAPT (The resolution can be enhanced to 2400 dpi class by using CAPT (Color Advanced Photoscale Technology) and Brother exclusive HRC (High Resolution Control).) 600 dpi class 600 dpi class with CAPT...
Page 30: Printing
2.2. Functions CPU: MIPS TMPR4955 (300 MHz) Emulation: Automatic emulation selection HP Color Printer (PCL5C) including HP LaserJet 4+ (PCL5e) and HP LaserJet 5 (PCL6 monochrome) BR-Script 3 (Adobe PostScript 3 compatible) HP-GL EPSON FX-850 IBM Proprinter XL Interface: IEEE 1284 parallel Universal Serial Bus 2.0 (High Speed) Ethernet 10/100 Base-TX RAM:...
Page 31: Network
Management: Web Based Management BRAdmin Professional Windows® based management utility TELNET Command Console SNMP (MIB-2, Host Resource MIB, Printer MIB, Brother MIB) HP JetAdmin Compatible Firmware update: 8MB flash ROM. Use parallel I/F or BRAdminProfessional with following protocols when upgrading print server software.
Page 32: Paper Specification
2.5. Paper Specification 2.5.1 Printable Media & Tray Capacity The standard media tray (upper tray) is supplied with the printer. The optional lower tray unit and the optional Legal cassette can also be installed. 1) Printable Media: Plain Paper / Transparency / Label / Envelope Thick paper 2) Printable size: (Refer to the list below.)
Page 33 2.5.2 Printed Output 250 sheets of 75g/m (20lb) paper / plain paper can be stacked in the output tray. Face-down print delivery Note: Face down: Delivers the printed side of the paper downwards ∼ ° ∼ Environment: 17.5 27.0 C, 50 70%RH 2.5.3 Recommended Paper Specifications...
Page 34 Table 2-1: Effective Printing Areas Size 210.0mm 297.0mm 203.2mm 288.5mm 3.4mm 4.23mm 8.27” 11.69” 8.0” 11.36” 0.13” 0.17” (2,480 dots) (3,507 dots) (2,400 dots) (3,407 dots) (40 dots) (50 dots) 215.9mm 279.4mm 207.44mm 271.0mm 4.23mm Letter 8.5” 11.0” 8.16” 10.67” 0.17”...
Page 35 Print guarantee area <Plain paper> Paper:5mm Other:10mm Non printable area Print guarantee area Non guarantee area Paper:4mm Other:10mm <Envelope> Non printable area Non guarantee area 42mm Print guarantee area 16mm COM10:68mm COM10:68mm DL:40mm DL:40mm 2.5.5 Paper Feed Jam Rate Less than 1 misfeed per 2000 pages under normal environmental conditions. Less than 1 misfeed per 1000 pages outside the normal environmental conditions.
Page 36: Toner Cartridge Weight Information
2.5.6 Toner Cartridge weight information Toner Cartridge Weight (approx weight) (unit=g) Starter Spare parts (TN-04 BK/C/M/Y) Brand new Toner Cartridge Weight Toner Weight at Brand New Toner Cartridge Toner Cartridge Weight at Toner Near Empty Remain Toner Weight at Toner Near Empty Toner Cartridge Weight at Toner Empty...
Page 37: Environmental Condition
ENVIRONMENTAL CONDITION Ambient Temperature / Humidity / Altitude Under Operational conditions: 10.0 ∼ 32.5°C, 20 ∼ 80%RH (See the figure below.) Zone A Recommended Condition; 17.5 70%RH Zone B Operation Area other than Zone A. 17.5 20 27 30 32.5 40 Ambient Temperature ( ) Under Non Operational conditions: 5.0 ∼...
Page 38 Storage and Transportation Environment of Printer The following defines the storage and transportation environment of printers that have been packed according to Brother specification. However, this section does not cover the OPC belt cartridge and toner cartridges. Normal 0°C ∼ 35°C (32°F ∼ 95°F)
Page 39: Chapter Iii Installation
CHAPTER III INSTALLATION III-1...
Page 40: Conditions Required For Installation
CHAPTER III INSTALLATION CONDITIONS REQUIRED FOR INSTALLATION Any Laser beam printer is likely to be influenced by the environment of the set-up location. If the printer is set-up in an inappropriate location, the printer may not perform as expected. Therefore, the following factors should be taken into consideration before deciding where to set-up the printer.
Page 41: Basic Layout Of Printer Set-Up Location
1.2. Basic Layout of Printer Set-up Location Fig.3-1 shows the basic layout of the printer set-up location that is suitable for smooth operation and maintenance of the printer. Table 50cm (20") 70cm 25cm (10") (28") 48cm 480 (W) x 420 (D) x 385 (H) (mm) (18.9") 18.9(W) x 16.5(D) x 15.2(H) (inch) 42cm (16.5")
Page 42: Unpacking
UNPACKING WARNING • The package containing a printer weighs approximately 35kg, so it is too heavy for one person to carry. It needs two adults to move the printer. Since the printer is a precision machine, make sure that it is carried slowly with care so that no impact occurs to the printer while moving it.
Page 43 1. Packing List Q'ty Name of Parts Laser Printer Starter Kit Power Code 2. Construction of Packing Name of Parts Q'ty Outer Box Outer Box Tape Starter Cushion Power Code Tray OPC Cartridge Base/U Cushion Polyethylene Bag F Tape F Tape F Tape F Tape Front Cushion...
Page 44: Unpack The Starter Kit
Unpack the Starter Kit <Unpacking Procedure> Remove the (3) Starter Cushion of Starter Kit. Remove the (5) Belt Cartridge PU with polyethylene bag from (3) Starter Cushion . Remove polyethylene bag from Belt Cartridge PU. Fig. 3-3 CAUTION Starter Kit (belt cartridge PU) is unique for this printer. If you use any non-unique consumables, it may deteriorate the print quality and break down the engine.
Page 45: Installation Work
INSTALLATION WORK Install the unit parts of the starter kit into the printer according to the following procedures: Install the Toner Cartridge PU CAUTION Make sure to remove the shipping support and cover of the toner cartridge prior to starting the installation of the belt cartridge PU. Otherwise, the belt cartridge PU may break down.
Page 46 Tension-Release Piece of Fuser Unit CAUTION Make sure to remove the tension-release piece of the fuser unit prior to the test drive, otherwise, the paper jam and fusing error are caused while driving. Open the Rear Cover Assy PU. Pull out the tension-release pin provided at the left and right side of fuser unit. Close the Rear Cover Assy PU.
Page 47: Install The Opc Belt Cartridge
Install the Belt Cartridge PU CAUTION • Do not directly touch the OPC belt surface with bare hands or gloves. • If the OPC belt is exposed for more than two minutes under the light of 800 lux, the belt may be damaged. Prepare the belt cartridge PU to be installed.
Page 48 Fix the belt cartridge and turning out the lock lever BC provided at the left and right side of the belt cartridge PU. Fig.3-8 Confirm by lightly pulling the belt cartridge up that the belt cartridge is fixed. Close the top cover PU. III-8...
Page 49 Test Run & Test Print 3.4.1 Power-On & OFF <Power-On:> Printer has the power switch located at the lower side of the left side panel. 1) Prior to connecting the power cord, set the power switch to the ‘OFF’ position and remove the main PCB.
Page 50: 3.4.2 Test Print
CAUTION Prior to unplugging the power cord, confirm that the power switch has been set as OFF condition. Strictly refrain from turning off the power switch or unplugging the power cord while the printer is operating the printing job. Wait at least 5 seconds immediately after turning off the printer power switch.
Page 51 (2). Test Print Procedures Implement the test print according to the following procedures upon completion of the warming-up process. Procedure Indication of Operator Panel Warming-up process is completed. READY Press Job Cancel key so that display changes from the SERVICE MODE screen (a) to (b).
Page 52 (3). Selection of Media Pressing the “GO” key on the operator panel, select the suitable process for the media to be used. When the media select key is pressed, the media lamp changes as follows: Condition of Media Lamp Selected Media Lit Out Plain Paper Transparency...
Page 53: Chapter Iv Structure Of System Components
CHAPTER IV STRUCTURE OF SYSTEM COMPONENTS...
Page 54: Basic Structure
CHAPTER IV STRUCTURE OF SYSTEM COMPONENTS BASIC STRUCTURE <Mechanical & Electrical Structures> This laser beam color printer (hereinafter called “Printer”) consists of five mechanical systems; Print, Transfer, Scanning, Paper Transport and Control System. The printer produces color printing through the interactive operations of these five systems as shown in Fig.4-1.
Page 55 Fig.4-1 IV-2...
Page 56 Control System The control system consists of the following 4 (four) control parts and runs the printer by processing the interface signals transmitted from the Host computer and interfacing to the print, transfer, scanning and transport systems. • Sequence Control •...
Page 57 OPC Belt Toner Cartridge Transfer Belt Fig.4-3 Y Y Y Y Y Y M M M C C C C C . First Transfer Transfer Belt Toner C C C M M M Y Y Y C C Y Y Y .
Page 58 <Structure of the OPC Belt> The OPC belt consists of a surface layer having a photoconductor (OPC) of organic material, the inner layer of an insulator material (PET / Mylar) and an aluminum deposit layer in between. The OPC belt is located as shown in Fig.4-5 as the main part of the print system.
Page 59: Print System And Transfer System
Print System and Transfer System Fig.4-7 shows the basic structure of the print system having the OPC belt as the main part and the transfer system having the transfer drum as the main part. Color printing is made by actuating the each process in the print system and transfer system. 4 cycles of actions 1 to 6 are required to form a full 24 bit color image on the transfer drum, only one cycle of actions 7, 8 and 9 is required to transfer the image to the paper from the transfer drum ready for fixing by actions 10 and 11.
Page 60: Laser Assy Pu
1.1.1 Structure of the Printer Component Part Process OPC Charger Roller PU Charging Laser Assy PU Exposing Toner Cartridge PU Developing Belt Receiving of image Cartridge PU Transfer Belt (Transfer Unit PU) Transferring of image Belt Discharger Erase Lamp Discharging of OPC Belt Cleaning Blade Cleaning of OPC Belt Transfer Roller Assy PU...
Page 61 1.1.2 Basic Structure of the Printing System A toner image is formed through the potential of the OPC belt varying in each of the charger, exposure, development, transfer and cleaning processes. Process of Print System (See Fig.4-9.) i) The OPC belt is biased to the voltage -CBV(V) by the power supply CBV. ii) A negative high voltage is applied to the charger unit by the power supply CHV, and a corona is generated as the result.
Page 62 -VR(V) of the OPC belt. vi) The OPC belt is discharged by the erase lamp. Latent Image Toner Image -CBV -CBV -CBV -CBV brother brother -CBV -CBV -CBV -CBV OPC Belt brother Blade K Y M C...
Page 63 1.1.3 Details of Each Process Charging The charging process means that OPC belt is evenly charged by the OPC charger roller Structure of the Charger Unit (Refer to Fig.4-8 and Fig.4-11) i) OPC Charger roller PU is located as shown in Fig.4-8. ii) Charge High Voltage is applied to the OPC charger roller PU.
Page 64 Exposing The exposing process means that the OPC belt surface is exposed to the laser beam to form an electrostatic latent image. Structure of Laser Assy PU i) Laser Assy PU is located as shown in Fig.4-8. ii) Luminous source of the laser beam is a semiconductor laser. iii) Scanning is made to laser light on OPC belt as converting the laser beam to the beam light through lens and reflective mirror to form an electrostatic latent image.
Page 65 Developing Developing Process means that an electrostatic latent image on OPC belt is made visible with toner. Structure of Toner Cartridge PU (Refer to Fig.4-8 & 4.14.) i) Toner cartridge PU is located as shown in Fig.4-8. ii) Four toner cartridges are made available from the top to bottom in the order of specified color as black, yellow, magenta and cyan.
Page 66 OPC belt Toner cartridge Developer roller Toner Electrostatic latent image Toner Fig.4-14 Toner Developer roller OPC Belt Fig.4-15 Toner (M) Exposing Developing Fig.4-16 IV-13...
Page 67 First Transfer (Belt) The first transfer process means that the toner images on the OPC belt is transferred onto the transfer belt. Structure of the Transfer Belt (Refer to Fig.4-8.) i) First transfer part is located as shown in Fig.4-8. ii) Material of the drum is aluminum.
Page 68 Process of First Transfer (Refer to Fig.4-18.) i) OPC belt that has been through the development process rotates as contacting and synchronizing with the transfer belt and drum. ii) OPC belt has been biased to the potential of -CBV(V). Potential of the transfer belt is nearly GND.
Page 69 Belt Discharging (Erase Lamp) OPC Belt Discharging Process means that upon completion of the first transfer process, LED light is radiated on the OPC belt prior to cleaning the belt to discharge the residual charge for electrical cleaning. Structure of Erase Lamp PU i) Erase lamp PU is located as shown in Fig.4-8.
Page 70 Belt Cleaning OPC Belt Cleaning Process means that the residual toner adhering to the OPC belt surface is mechanically scavenged. Structure of Belt Cleaning Blade for the OPC belt cleaning is located to the belt cartridge as shown in Fig.4- Process of OPC Belt Cleaning (Refer to Fig.4-20.) i) There is a residual toner on the OPC belt as it has not been transferred in the process of first transfer.
Page 71 Second Transfer (Paper) Second Transfer Process means that the toner image on the transfer belt is transferred onto the transported paper. Structure of Belt Cleaning i) Transfer roller for the second transfer is located as shown in Fig.4-8. ii) Transfer roller is normally separated from the transfer belt. iii) Transfer roller is positively biased by the power supply THV.
Page 72 Drum Cleaning Transfer Belt Cleaning Process means that the residual toner on the transfer belt is removed. Structure of Transfer Unit Cleaner PU (Refer to Fig.4-22) i) Transfer Unit Cleaner PU is located as shown in Fig.4-8. ii) Cleaning brush is a semiconductor type fur brush to clean the surface of transfer belt as rotating.
Page 73 Laser Assy PU This printer employs a semiconductor laser diode as a light source. This laser diode is controlled by the fast switching according to transmitted image data (video signal). The generated laser light scans over the OPC belt through a polygon mirror and lens, by which electrostatic latent images will be formed on the OPC belt.
Page 74 Specification: Specification of Laser Unit is described as follows: Item Specifications Rated Output of Laser Diode 5mW. Wave Length of Laser Beam Approx.785nm. Scanning Density 600dpi Scanning Width 314mm Rotations Per Minutes of Scanner Motor 35,904rpm Number of Polygon Mirror Faces IV-21...
Page 75: Paper Transportation System
Paper Transportation System Outline This printer employs the automatic paper feeding with the paper tray. When toner images are formed on the transfer belt through the operations of print system and transfer system, a paper is fed by the paper feed roller and transported to the registration roller.
Page 76 Transfer Belt 1 . Paper Tray PU 5 . Fuser Unit FU 2 . Paper Feed Roller PU 6 . Rear Cover Assy PU (Paper Exit Unit) 3 . Resistration Roller PU 7 . Exit Roller Assy PU 4 . Transfer Roller PU Fig.4-24 IV-23...
Page 77: Fusing Unit
Fusing Unit Fuser Unit employs the thermal fusing system containing the heater in the roller. Papers carrying the toner images pass between the heat rollers. Heat and pressure is applied to the paper when passing between the heat rollers so that the toner image is melted and fused on the paper.
Page 78 Process of Fusing (Refer to Fig.4-26.) The toner image that has been transferred onto the paper is simply adhered on the paper but not fused yet. Transported paper passes between the heater roller and back-up roller. Each roller is heated up to approx. 150°C, and received approx.200N from the opposite heat roller.
Page 79: Structure Of The Control System
STRUCTURE OF THE CONTROL SYSTEM Basic Structure 2.1.1 Electrical System and Function Most of the main electrical parts of this printer are controlled by the MCTL (engine controller) PCB. <Structure of the Sequence Control> The basic structure of the sequence control is shown in Fig.4-27. Print Process Control: To control the print process from the paper feed through paper exit.
Page 80 IV-27...
Page 81 <Layout & Function of the Electrical Parts> Print PCB (Refer to Fig. 4-28.) Name Function To control the series of processes of the Printer: Engine Controller Fuser Temperature Control, Laser Output Control, Board PU (MCTL Operator Panel Indication, Toner Empty Sensing P.W.B.) Control, Error Processing Control, Interface Control.
Page 82 Motors (Refer to Fig.4-29.) Name Code Function To drive the OPC belt and the paper Main Motor PU transport system. To drive the toner cartridge and the Developer Motor PU developing system. Scanner Motor To scan the laser beam. (Laser Assy) Exit Fan PU EXFAN To exhaust the heat of fusing unit.
Page 83 Clutches and Solenoids (Refer to Fig.4-30.) Name Code Function To feed papers by coupling the feeding Paper Feed Clutch PCLU roller to the main gear unit at timing of the paper feeding. To transport papers by coupling the Registration Clutch registration roller to main gear unit as RECL synchronized with the rotation of transfer...
Page 84 Layout of Clutches and Solenoids Fig.4-30 IV-31...
Page 85 Sensors Function Paper Size Sensor PU Photo sensor to detect the paper size. Registration Sensor Photo sensor to detect the paper is fed from the paper tray. Photo sensor to detect that paper is Fuser Exit Sensor PU exited from the paper exit unit. Photo sensor to detect if paper is Tray Empty Sensor PU loaded or empty in the paper tray.
Page 86 Layout of Sensors 11. Temperature Sensor for Fuser Unit 3. Fuser Exit Sensor PU 12. Output Tray Full Sensor PU 8. OPC Marker Sensor PU 9. Toner Sensor PU 5. OHP Sensor PU 4. Tray Empty Sensor PU 10. Waste Toner Sensor 2.
Page 87: Control System
Control System 2.2.1 Control of the Print Process A Micro CPU mounted on the MCTL PCB controls the print processes. <Print Sequence Diagram> Lower OPERATION LD Fan FUCL RECL FBSOL TRSOL CONTROLLER PCLU Feed Unit PANEL PU P.W.B PANEL ASSY IOD P.W.B : I/O DRIVER ENGINE MCTL CONTROL G.A.
Page 88 Laser Drive Control Circuit Laser Drive Control Circuit (LDC) consists of the video signal input circuit, laser drive circuit, laser diode, output sensing circuit and output control circuit, as shown in Fig.4-33. <Operation> (1) When the video signal is inputted, the laser drive control circuit has the laser diode switched on and radiated according to the video signal.
Page 89 Control of the Fusing Temperature Each roller of the fusing unit is controlled to maintain the appropriate temperature so that toner will be fixed correctly onto the print paper. <Basic Structure of Temperature Control (Fig.4-34)> FLS: Thyristor to control the on/off operation of power supply to the heat lamp.
Page 90 IV-37...
Page 91 To maintain the set point (temperature) for fusing of toner to be approx. 160°C as appropriate by turning on/off the thyristor. Reference temperature (approx. 185°C) to identify that it is excessively hot inside the fusing unit. When it reaches to this point, the relay RY turns off, the power supply to the heat lamp is shut down, and the printer stops the operation.
Page 92 Interface Control <General> (a) Interface Type This Document describes the Video and Command/Status Interface between Laser Printer Controller (LPC) and engine controller. Printer controller acts as a slave to LPC. Through Video Interface, LPC controls the Printer & Operator Panel using Command/Status communication and transmits the synchronized video data to Printer laser diode.
Page 93 (c) Interface Circuit (Printer side) Table 4-1: Interface Circuit IV-40...
Page 94 (d) Connector Pin Assignment The connector in the printer to connect to the controller board is type 128A-064S2B-:L14A (DDK) or the equivalent. Table 4-2: Connector Pin Assignment for Video Interface Signals and DC Power Supply (Engine side) Pin No. Signal Name Pin No.
Page 95: Main Pcb (Video Controller Pcb
Main PCB (Video Controller PCB) 2.3.1 Outline The Main PCB consists of the circuits which perform the following functions; • Receive the printing data from the computer. • Convert the received data to the bitmap data such as characters or graphics. •...
Page 96 <Main PCB Block Diagram> 74LVX 161284 ADDRESS Mask Flash ASIC to PC DATA0-7 DATA0-7 D0-D15 D0-D15 64Mbit 64Mbit MB87M4240 Luna2 Mask Flash to PC 64Mbit 64Mbit D16-D31 D16-D31 Xtal 12MHz SDCLK0 SDRAM 256Mbit ADDRESS D0-D15 Compact SDRAM 256Mbit Flash D16-D31 SLOT 74LCX 74LCX...
Page 97 +3.3V +3.3V Regulator Regulator + 1.5V + 1.8V +3.3V Max 3.0A AD BUS ASIC TMPR4955 +5.0V Max 2.0A -300 MB87M4240 COMMAND Xtal 28.57269 Luna2 Video-P LVDS CPUCLK Video-N +5.0V Super RESET Reset Capacitor Xtal 32.768 100MHz Spectra Spreaded SSCG Ethernet Controller 100MHz Xtal...
Page 98 2.3.2 Circuit CPU block • Model name: TMPR4955BFG-300, MIPS 64bit RISC CPU manufactured by TOSHIBA • Clock speed: 100MHz (external) / 300MHz (internal) • Cache memory: 32KB (Command cache) / 32KB (Data cache) • Bus width: 32bit (external) / 64bit (internal) Internal Floating Point Unit (FPU) •...
Page 99 SO-DIMM SO-DIMM allows memory extension by up to 576MB. 1 SO-DIMM socket is available. The following type of DIMM can be installed into each slot. • Type: 144 pin and 64 bit output • Memory type: SDRAM • Clock frequency: PC100 or PC133 •...
Page 100 Engine interface block The engine interface consists of the following signals; <IREADY> The signal indicating the engine is ready <PRREQ> Signal requesting printing from the controller <KEY_STATUS> Signal indicating that a key switch status on the control panel has changed. <VSYNC>...
Page 101 The COMMAND signal and STATUS signal are the signals that are used to transfer the data between the controller and the engine, which perform as a half-duplex asynchronous serial communication. Refer to Fig.4-40. Stop bit Start bit Parity bit COMMAND 8ms (TYP) 30ms (MAX) STATUS...
Page 102 Main PCB circuit Diagram (1/7) CODE LJ9515001 NAME B512168CIR (1/7) IV-49 IV-49...
Page 103 Main PCB circuit Diagram (2/7) CODE LJ9515001 NAME B512168CIR (2/7) IV-50 IV-50...
Page 104 Main PCB circuit Diagram (3/7) LJ9515001 CODE NAME B512168CIR (3/7) IV-51 IV-51...
Page 105 Main PCB circuit Diagram (4/7) LJ9515001 CODE B512168CIR (4/7) NAME IV-52 IV-52...
Page 106 Main PCB circuit Diagram (5/7) LJ9515001 CODE NAME B512168CIR (5/7) IV-53 IV-53...
Page 107 Main PCB circuit Diagram (6/7) LJ9515001 CODE NAME B512168CIR (6/7) IV-54 IV-54...
Page 108 Main PCB circuit Diagram (7/7) LJ9515001 CODE NAME B512168CIR (7/7) IV-55 IV-55...
Page 109: Power Supply Unit
Power Supply Unit Outputs and Use Output Terminal Rated Output +5V-1 For control of Printer. +5V, 4.0A +5V-1R For control of Laser. +5V-2 For control of Interface. (2.0A MAX) 3.3V-2 3.3V, 3.5A For control of Printer +24V-1 +24V, 6.5A For control of printer charging. 120V, 8A 1000W For connection of the fuser heater (HP).
Page 110 Layout of Connector Pin Assignment - Power Supply Unit - Fig.4-40 IV-57...
Page 111 Connector Pin Assignment DC Power Supply – IOD P.W.B ACN1 Manufacture: MoLex Type: Pin No Signal Name Interface Pin No Signal Name Interface Power Ground (+24V +24V Output through PGND +24V-1D Type) Relay Power Ground (+24V +24V Output through PGND +24V-1D Type) Relay...
Page 112 DC Power Supply Unit – MCTL P.W.B ACN3 Manufacture: MoLex Type: Pin No Signal Name Interface Pin No Signal Name Interface Signal Ground SGND(CNT) +5V-2(CNT) +5V-2 Output (CNT) (+5V Type) Signal Ground SGND(CNT) +5V-2(CNT) +5V-2 Output (CNT) (+5V Type) Signal Ground SGND(CNT) +5V-2(CNT) +5V-2 Output (CNT)
Page 113 DC Power Supply Unit – MCTL P.W.B ACN5 Manufacture: MoLex Type: Pin No Signal Name Interface Pin No Signal Name Interface Terminal for the Terminal for the TESTO1 dielectric strength TESTO2 dielectric strength test test Terminal for the Terminal for the TESTI1 dielectric strength TESTI2...
Page 114: High Voltage Power Supply Unit
High Voltage Power Supply Unit Output and Function Power Supply (P/S) Approx. Function Name of P/S Output Typical Charging -850 Charging Cleaning +200 Transfer THVT +1.3k First Transfer Cleaning THVR -300 DBV(YK) -180 Developing Bias DBV(MC) -180 Belt Bias -350 Belt Cleaning FCBV +1.0k...
Page 115 Connector Pin Assignment Manufacture: MoLex Type: Pin # Signal Name Interface PGND GROUNDING PGND GROUNDING GROUNDING +24V-1 +24V-1 +24V-1 +24V-1 +24V-1 +24V-1 BRVON-N BRV Output on signal CLVP-N CLV Output on signal PWMON-N PWM control on signal BRVPWM-N BRV PWM control on signal BRVERR BRV ERR sensor signal CBVPWM-N...
Page 116: Wiring Diagram
Wiring Diagram MAIN MOTOR PU DVELOPER MOTOR LFU Connector DCL (K) DCL (Y) TONER SENSOR PU LASER FUN PU REAR COVER ASSY PU DCL (M) DCL (C) WASTE TONER HOLDER ASSY PU PFUL DCN10 DCN12 DCN11 DCN13 ERASE LAMP PU FUFAN DCN8 DCN14 DCN7 FUSER UNIT FU DCN15 DCN6 DCN16 THS1 DCN5 PCLU P.W.B DSL (K) RECL THS2 HP HEATER DCN4 DSL (Y) TRCL DCN18 THERMISTOR DSL (M) FUCL DCN3...
Page 117 <Symbol and Parts Name> Symbol Parts Name Symbol Parts Name LVPS LV Power Supply Unit PU I/O Board PU DSW.F Interlock Switch PU (Front) OHP Sensor PU DSW.T Interlock Switch PU (Top) Tray Empty Sensor PU Interlock Switch PU Registration Sensor PU FUSER Erase Fuser Unit FU...
Page 118 (1) MCTL P.W.B I1CN - IOD P.W.B DCN1 (2) MCTL P.W.B I2CN - IOD P.W.B DCN3 IV-65...
Page 119 (3) HV Power Supply Unit BCN1 - MCTL P.W.B HUCN (4) MCTL P.W.B PPCN - Duplex Unit (5) LCN : MCTL-Laser Assy (6) MCTL P.W.B (7) MCTL P.W.B FUCN-Fuser Connector IV-66...
Page 120 (8) LV Power Supply Unit ACN5-MCTL P.W.B LVCN (9) LV Power Supply Unit ACN3 MCTL P.W.B POCN (10) MCTL P.W.B PACN PANEL P.W.B PCN2 (11) MCTL P.W.B P3CN - PANEL P.W.B IV-67...
Page 121 (12) IOD P.W.B DCN4 - Developer Solenoid (13) IOD P.W.B DCN5-OPC Marker Sensor (14) IOD P.W.B DCN7 - Paper Exit Unit (15) IOD P.W.B DCN10 - Clutches (16) IOD P.W.B DCN11- Developer Motor IV-68...
Page 122 (17) IOD P.W.B DCN12 - Main Motor (18) IOD P.W.B DCN13 - LV Power Supply Unit ACN1 (19) IOD P.W.B DCN14 - Lower Feeder Unit (20) IOD P.W.B DCN15- Toner Sensor (21) IOD P.W.B DCN16 - Paper Sensors (22) IOD P.W.B DCN18 Inter Lock Switch IV-69...
Page 123 (23) IOD P.W.B DCN19 - Paper Size Sensor (24) IOD P.W.B DCN20 Power Supply Fan (25) IOD P.W.B DCN21 LV Power Supply Unit ACN5 (26) ACN2 (Interlock Switch) (27) LV Power Supply Unit ACN4-Duplex Unit (28) LV Power Supply Unit ACN7-Fuser Connector (29) LV Power Supply Unit ACN6-Input IV-70...
Page 124 (30) Duplex Connector (31) Lower Feeder Connector (32) DCN2:IOD (33) DCN8:IOD - Laser Fan IV-71...
Page 125: Chapter V Control Panel Operation
CHAPTER V CONTROL PANEL OPERATION...
Page 126: Panel Layout
CHAPTER V CONTROL PANEL OPERATION PANEL LAYOUT Job Cancel BACK Fig.5-1 LED / Key Name LCD: 16 character by 2 lines Alarm LED Online LED Job Cancel Key Go Key - Key Set Key + Key Back Key...
Page 127: Video Controller Mode
VIDEO CONTROLLER MODE This section describes the operation and maintenance functions in the Video Controller Mode. Configuration of Operational Mode This printer has various functions as set out in Table 5-1 for users to easily perform general test printing, general settings and some maintenance work. (1) Normal Mode: After turning on the printer, the printer goes into Normal Mode.
Page 128 Line Test Mode This mode tests the following items; Item Self-test Description LCD TEST Displays the checker pattern LED TEST Checks that all LEDs are on / off. SW TEST Checks that all keys work correctly. SENSOR TEST Checks that all sensors work correctly. RAM SIZE TEST Displays the NVRAM size TRAY 1 CHECK...
Page 129 3) Press the Go key to implement the SW TEST. The following display appears on the LCD and the LEDs are all turned off. Check that the LEDs are turned on and the corresponding number appears as follows when pressing the keys on the control panel in order. Corresponding key number on the panel X X X X X X X X 1 2 3 4 5 6 7 8...
Page 130 Operate a sensor in one sense for at least 20 seconds before restoring it to the original condition for reliable operation of these tests. • As for HL-2700CN, Lower Tray does not have the media sensor, so the display will not be changed to ‘Q’. (The display will stay...
Page 131 5) Press the Go key to implement the RAM SIZE CHECK. The RAM size installed into the printer is displayed. Check that the RAM size is correct. RAM CHECK START RAM SIZE = 64MB 6) Press the Go key to implement the TRAY1 CHECK. The paper size of the installed tray 1 is displayed.
Page 132 8) Press the Go key to implement the COMPACT FLASH - R/W TEST. The reading/writing test of the compact flash card is implemented. Check that no error occurs. CARD R/W START CARD R/W OK CARD R/W OK: The compact flash card works correctly. CARD R/W ERROR: The compact flash card has a problem.
Page 133: Dram Test Mode
DRAM Test Mode This mode tests DIMMs installed on the main (video controller) PCB. <Procedure> 1) To start the test program: While holding down the Go key and + key, turn on the power. “DRAM CHECK START” will be displayed. Press the Job Cancel key to start the DRAM check. 2) The LCD will display “START DRAM TEST”.
Page 134: Nvram Reset Mode
NVRAM Reset Mode This mode forces the NVRAM value of the video controller to be reset to the factory settings. <Procedure> 1) While holding down the Set key, turn on the power. 2) Hold down the Set key until “WARMING UP” is displayed on the LCD panel and the LEDs are all on momently.
Page 135: Engine Controller Mode
ENGINE CONTROLLER MODE This section describes the operation and setting procedures for each engine test in the Engine Controller Mode. In order to go into the Engine Controller Mode, turn on the printer while holding down the -, +, Back keys. Note: Be sure to remove the main PCB before the printer goes into the Engine Normal Mode.
Page 136 Table 5-2 Construction of Operational Mode Normal Mode READY ALARM LED OFF ONLINE LED ON WAIT ALARM LED BLINK PRINT ALARM LED OFF CHK MEDIA ALARM LED ON CHK MEDIA for DUPLEX NO MEDIA CHK OUTER SELECTION CHK LIFE for DUPLEX NO TRAY STACKER FULL REPLACE TONER...
Page 137: Operation Of Normal Mode
Operation of Normal Mode Normal Mode displays on the control panel the operational status of the printer when in the “ONLINE” state and the necessary information for the operator to implement ordinary maintenance work. Operation Procedures 1) Turn on the printer while holding down the “-“, “+ “ and “Back” keys. 2) Press the “Job Cancel”...
Page 138 Code No. LCD Message Description of Message • Engine has completed the warming- up process and now is ready to print. • Engine is ready to receive "PRREQ", 00 READY [*1] signal from LPC. ] [*4] [*1]: Applicable paper feeder is indicated as follows;...
Page 139 Code No. LCD Message Description of Message • Engine stands by as “CHECK 11-1 MEDIA” status. CHECK MEDIA • Alarm LED is lit. 11 CHK MEDIA [*1] [*1]: Applicable paper feeder is indicated [*4] as follows; /UPP: Upper Tray /LOW: Lower Tray /DPL: Duplex Unit Inside •...
Page 140 Code No. LCD Message Description of Message • Engine idles when the error message 11-5 CHECK LIFE for DUPLEX “CHK MEDIA FOR DUPLEX” appears. 11 CHK LIFE • Alarm LED is lit. for DUPLEX • The error message “CHK MEDIA FOR DUPLEX”...
Page 141 Code No. LCD Message Description of Message • Engine is idling. CHECK WASTE TONER PACK • Alarm LED is lit. • Replace the waste toner pack with a new pack. 14 CHECK WASTE • This message will be automatically TONER PACK[*4] cleared by open &...
Page 142 Code No. LCD Message Description of Message • Engine is idling. 16-2 ALIGN TONER CG • Alarm LED is lit. [*5]: The color of the incorrectly installed 16 ALIGN [*5] toner cartridge will be indicated as TONER CG [*4] follows; Yellow Magenta Cyan...
Page 143 Code No. LCD Message Description of Message • Engine is standstill. MEDIA JAM • Alarm LED is lit. [*7]: Kind of jam (location of jam) is 17 MEDIA JAM indicated as follows; [*7] [*4] FEED: Paper Feeder INNER: Inside of Printer OUTER: Paper Exit TRNS:...
Page 144: Service Mode
Service Mode Service mode is a unique mode for the maintenance of printer only. In this mode, you can check the operation status of printer engine as OFFLINE, and also carry out the maintenance work of each printer components. Procedure 1) Simultaneously pressing the three keys, namely, + key, Back key, and - key, turn the power switch on by push-on operation.
Page 145 GRID PRINT Grid Pattern of single color or two color (R, G, B) and Stripe Pattern of full color can be printed for Test Print. Procedure Description of Procedures LCD Message 1) Press Set key. (a) → (b) SERVICE MODE 2) Using Back and + keys, select the desired TEST PRINT pattern (ex.
Page 146 NEXT CARE INFORMATION Information relating to the replacement timing of periodical replacement parts can be obtained, namely, the number of motion images and printouts. Procedure Description of Procedures LCD Message 1) Press Set key after selecting Screen (a) SERVICE MODE "NEXT CARE INFO".
Page 147 TRAY TYPE Desired paper feeding tray can be selected. Procedure Description of Procedures LCD Message 1) Press Set key after selecting Screen (a) SERVICE MODE "TRAY TYPE". (a) → (b) TRAY TYPE 2) Using Back and + keys, select the applicable code of desired tray (A, B, C or D), and then, press the Set key.
Page 148 TOTAL PAGE Total number of printouts can be confirmed. Procedure Description of Procedures LCD Message 1) Press Set key after selecting TOTAL PAGE SERVICE MODE mode. (a) → (b) TOTAL PAGE 2) Select one type of page from among TOTAL PAGE, DPL PAGE.
Page 149 EACH IMAGE Number of created images per each color used in printing can be confirmed. Procedure Description of Procedures LCD Message 1) Press Set key after selecting EACH IMAGE SERVICE MODE mode. (a) → (b) EACH IMAGE 2) Using Back and + keys, select the subject color, and then, press Set key.
Page 150 CLEAR CARE Care Code displayed in the LCD can be cleared. Make sure to implement the displayed CLEAR CARE mode whenever replacing the applicable periodical replacement parts with new parts. Procedure Description of Procedures LCD Message 1) Press Set key after selecting CLEAR CARE SERVICE MODE mode.
Page 151 MEDIA MANAGE Signal from OHP sensor can be ignored at the media select (OHP). However, this mode should not be used under the normal circumstances. Procedure Description of Procedures LCD Message 1) Press Set key after selecting MEDIA SERVICE MODE MANAGE.
Page 152 EXTEND MEDIA The detail of media selection can be specified. Procedure Description of Procedures LCD Message 1) Press the Set key after selecting EXTEND SERVICE MODE MEDIA. (a) → (b) EXTEND MEDIA 2) Using the Back and + keys, select the desired media, and then press the Set key.
Page 153 FACTORY MODE This mode consists of 9 (nine) subordinate modes for the confirmation of operations and the resetting functions necessary for the maintenance work. Basic Configuration FACTORY MODE MARGIN ADJUST LIFE PRIOD SET NVRAM TUNE UP NVRAM INITIAL TOTAL PAGE SET EACH IMAGE SET NEXT LIFE SET ID DATA SET...
Page 154 MARGIN ADJUST The position of top margin and left margin can be confirmed and adjusted within the range between -3.5mm max. and +3.5mm max. Procedure Description of Procedures LCD Message 1) Press Set key after selecting MARGIN 39 FACTORY MODE ADJUST.
Page 155 LIFE PERIOD SET Replacement life of the periodical replacement parts can be set. Procedure Description of Procedures LCD Message 1) Press Set key after selecting LIFE PERIOD 39 FACTORY MODE mode. (a) → (b) LIFE PERIOD SET 2) Using Back and + keys, select the desired code to be set, and then, press Set key.
Page 156 NVRAM TUNE UP This mode is not used in the normal operation, but is used when fine adjustment of the adjust value is required. This mode consists of following 8 (eight) subordinate modes: Configuration of NVRAM TUNE UP Factory Value at Ex- Work NVRAM TUNE UP 45-1...
Page 157 45-1 LP TUNE UP This mode shall be used when optical density, line thickness and/or color reproduction need to be adjusted. The adjustment will be made by changing the laser power against the reference value 0 (zero) in the range between the step -7 and +7. Description of Procedures LCD Message 1) Press Set key after selecting NVM TUNE...
Page 158 45-2 THV TUNE UP This mode shall be used when transfer voltage needs to be adjusted due to the errors caused such as transfer failure on the media. The adjustment is to change the transfer voltage, subject to the media to be used, against the reference value 0 (zero) in the range between the step -4 and +4.
Page 159 45-3 DBV TUNE UP This mode shall be used when image optical density needs to be adjusted. Adjustment is to adjust the developer bias voltage against the reference value 0 (zero) in the range between the step -7 and +7. Description of Procedures LCD Message 1) Press Set key after selecting NVM TUNE...
Page 160 45-4 CBV TUNE UP This mode shall be used when the image defects attributing to OPC belt need to be improved. Adjustment is to adjust the OPC belt bias voltage against the reference value 0 (zero) in the range between the step -4 and +4. Description of Procedures LCD Message 1) Press Set key after selecting NVM TUNE...
Page 161 45-5 FBV TUNE UP This mode shall be used when the image defects attributing to transfer drum need to be improved. Adjustment is to adjust the drum cleaner bias voltage against the reference value 0 (zero) in the range between the step -4 and +4. Description of Procedures LCD Message 1) Press Set key after selecting NVM TUNE...
Page 162 NVRAM INITIAL This mode can initialize (data clear) all the data of NVRAM on MCTL PWB, and also can execute NVRAM CLEAR to clear C3 error when occurred. WARNING NVRAM INITIAL is not used under normal circumstances; Bear in mind that execution of this mode is beset with loss of all the data in NVRAM.
Page 163 TOTAL PAGE SET This mode can reset the number of total pages on NVRAM whenever executing NVRAM INITIAL or replacing the MCTL PWB. Description of Procedures LCD Message 1) Press Set key after selecting TOTAL PAGE 39 FACTORY MODE SET. (a) →...
Page 164 EACH IMAGE SET This mode can reset the number of total pages of each color on NVRAM whenever executing NVRAM INITIAL or replacing the MCTL PWB. Description of Procedures LCD Message 1) Press Set key after selecting EACH IMAGE 39 FACTORY MODE SET.
Page 165 NEXT LIFE SET This mode is to set the replacement timing (number of prints) of periodic replacement parts. Description of Procedures LCD Message 1) After selecting NEXT LIFE SET, press Set 39 FACTORY MODE key. (b) → (f) 2) After selecting the code to be set, press Set NEXT LIFE SET key.
Page 166 ID DATA SET This mode is not used. OPT TUNE UP For details of this mode, refer to [TMA CAL MODE] in 7.1 Professional Menu in Appendix 6.HIDDEN FUNCTION MENU. V-41...
Page 167: Adjustment Work Procedures
Adjustment Work Procedures 3.4.1 Adjustment of Top and Left Margin Top and left margin can be adjusted by the key operation on the operator panel. <Purpose> If there is no top margin or left margin for the print guarantee area or when MCTL PWB is replaced, the adjustment of top and left margin will be required.
Page 168 3.4.2 Setting of Engine NVRAM Data As Data in the RAM has been preset to the optimum value at the ex-work, it is not necessary to change the preset value under the normal condition. However, fine adjustment may be required subject to the media or operational conditions. <Purpose>...
Page 169 3.4.3 Confirmation and Setting of Total Number of Printouts Total number of printouts is stored in the RAM. Confirmation and setting of total number of printouts can be confirmed and reset by manipulating the key on the operator panel. <Purpose> Total number of printouts shall be reset when changing the MCTL PWB or executing the NVRAM INITIAL.
Page 170 3.4.5 Initial Setting of Engine NVRAM Implement the initial setting at the replacement of MCTL P.W.B. after clearing the contents of RAM. <Purpose> Number of images per each color shall be reset when changing the MCTL P.W.B. or executing the NVRAM INITIAL. <Procedures of Setting>...
Page 171: Chapter Vi Periodic Maintenance
CHAPTER VI PERIODIC MAINTENANCE...
Page 172: General
CHAPTER VI PERIODIC MAINTENANCE 1. GENERAL 1.1 Precaution in Handling Since a high quality laser printer is a precision equipment, the daily checking and periodic maintenance is indispensable to maintain an expected high performance. Following is the list of important precautions & action items as to the maintenance and periodic replacement parts: 1) Refrain from any operation, disassembly, and modification that are not set out in this manual.
Page 173 1.1.1 List of Maintenance Tools Table 6-1 below lists up the maintenance tools for the printer. Table 6-1 Name of Tool Function Phillips Screwdriver #1 For M3 Phillips Screwdriver #2 For M4 Phillips Screwdriver (short shank) #2 For M4 Slotted Screwdriver #1 For slotted head screw Slotted Screwdriver #2 For slotted head screw...
Page 174 1.1.2 List of Consumables for Maintenance Table 6-2 below lists up the consumables for maintenance. Table 6-2 Name of Tool Quantity Function Toner Cartridge PU (Y) 1 piece Test Print Toner Cartridge PU (M) 1 piece Test Print Toner Cartridge PU (C) 1 piece Test Print Toner Cartridge PU (K)
Page 175: 1.2 Cleaning For Periodic Maintenance
1.2 Cleaning for Periodic Maintenance <Component Subject To Cleaning> Name of Component Name of Part Transfer / Paper Guide Part Registration Roller Assy PU Transfer Roller Assy PU Paper Guides OPC Charge Roller PU OPC Charge Roller PU OPC Cartridge Roller PU Inside of Printer Dustproof Glass Perimeter of Laser Assy PU...
Page 176 Table 6-3: Periodic Maintenance Cleaning Work Name of Parts Cleaning Work Cleaning Cycle *1 Time *2 Skill *3 Description Section (Condition or Case) (minute) Level 1. Open the paper exit unit. • Defective image Registration Roller A, B, or 2. Clean the rollers and surroundings 1.2.1 •...
Page 177 1.2.1 Cleaning of Transfer Base Assy PU and Paper Guide Assy PU Stains on papers, and paper jams at the Transfer Base Assy may be caused by stains on the Transfer Base Assy. Clean the transfer base assy PU according to the following procedures: <Tools to Prepare>...
Page 178 1.2.2 Cleaning of OPC Charge Roller PU / OPC Cartridge Roller PU (Brush Roller) If the vertical streak or black line occurred on the print, the cause may be the stained OPC charge roller . In this case, carry out the cleaning work according to the following procedures: CAUTION •...
Page 179 1.2.3 Cleaning of Printer (Inside) and Laser Assy PU White streak error may be attributed to the laser assy PU. Clean the laser assy PU according to following procedures: <Tools to Prepare> 1) Cotton Cloth (Unwoven): 2 to 3 pieces <Cleaning Procedure>...
Page 180 1.2.4 Cleaning of Printer Interior Printer Interior (bottom) shall be cleaned according to the periodic maintenance cleaning cycle set out in Table 6-3. CAUTION Prior to cleaning the inside of printer, protect the transfer drum with paper so that the mouth of cleaner will not directly contact the transfer drum. <Tools to Prepare>...
Page 181: 1.3 Periodic Maintenance Parts And Maintenance Cycle
1.3 Periodic Maintenance Parts and Maintenance Cycle Maintenance Work should be implemented according to the “Periodic Maintenance Parts and Maintenance Cycle” set out in Table 6-4. Table 6-4 Name of Replacement Part Replacement Cycle Operator OPC Charge Roller PU Every 60,000 images Serviceperson or Customer Fuser Unit...
Page 182 Table 5-4: Periodic Maintenance Parts and Maintenance Cycle Name of Parts Description Cleaning Cycle *1 Time *2 Skill *3 Function Section (Condition or Case) (minute) Level 60K images or 12 months To consist of OPC belt and form an OPC Charge Roller PU whichever comes first.
Page 183: Periodic Maintenance Procedures
2. PERIODIC MAINTENANCE PROCEDURES 2.1 Replacement of OPC Charge Roller PU <Criterion of Replacement> OPC charge roller PU should be replaced with a new cartridge at 60,000 images or 12 months whichever comes earlier. When time is due for replacement of OPC charge roller PU, the following maintenance message appears on the LCD of the control panel.
Page 184 Sequence of Assembling 1) Remove the belt tension-release pins from both sides of the new OPC charge roller PU. 2) Remove the protective sheet from the new OPC charge roller PU. Do not touch the green part of the OPC charge roller PU. OPC charge roller PU Protective sheet Belt tension-release pin...
Page 185: Replacement Of Fusing Unit
2.2 Replacement of Fuser Unit <Criterion of Replacement> It is recommended to replace with a new fuser unit according to the periodic maintenance cycle listed in the table 1 to maintain the satisfactory print quality. The suggested replacement timing is indicated on the control paned with the following message, “REPLACE FUSER”.
Page 186 Sequence of Assembling 1) Put the new fuser unit into the printer. Be sure to insert the fuser unit completely into the printer. 2) Secure the fuser unit with the two lock lever (FU) that are on both sides of the fuser unit.
Page 187: Replacement Of Transfer Roller Assy Pu
2.3 Replacement of Transfer Roller Assy PU (120K KIT) <Criterion of Replacement> Transfer roller assy PU should be replaced with a new one according to the periodical maintenance cycle set out in the Table 6-4. When time is due for replacement of transfer roller assy PU, the following message appears on the LCD.
Page 188 Sequence of Assembling 1) Put in the new transfer roller assy PU by holding the lock lever TR of the transfer roller assy PU and adjusting the angle of the transfer roller lever shafts (both sides) to match the transfer unit grooves. Put the transfer roller assy PU onto the shafts and place the roller onto the springs as shown blow.
Page 189 Replacement of Cleaning Roller PU (120K KIT) <Criterion of Replacement> Cleaning roller PU should be replaced with a new one according to the periodical maintenance cycle set out in the Table 6-4. When time is due for replacement of cleaning roller PU, the following message appears in LCD of the control panel.
Page 190 4) Remove cleaning roller PU by grasping the handle and lift it up. Cleaning roller PU Shaft of counter Shaft of drum cleaner Fig.6-16 Sequence of Assembling 1) Clean the area where the new cleaning roller PU is to be installed with a dry cotton cloth.
Page 191: Replacement Of Paper Feed Roller And Separator Pad
Replacement of Paper Feed Roller and Separator Pad (120K KIT) <Criterion of Replacement> Since the paper feed roller and separator pad are defined as periodic replacement parts as per Table 6-4, they should be replaced when the feeding jam (17. MEDIA JAM FEED) occurs.
Page 192 4) Open the paper exit unit. 5) Remove the paper guide (B) PU. 6) Remove the setscrew from the support band. Support band Paper guide (B) PU Setscrew Paper exit unit Fig.6-19 7) Remove the setscrew (BT3x8, 2 pieces) from the paper guide (C) PU. 8) Remove the paper guide (C) PU.
Page 193 Sequence of Assembling 1) Set the separator pad. 2) Set the paper feed roller. 3) Secure the paper guide (C) PU with the setscrew (BT3x8, 2 pieces). BT3x8 Paper guide (C) PU Paper feed roller Separator pad Paper exit unit Fig.6-21 4) Secure the support band with the setscrew.
Page 194 7) Secure the paper guide (B) PU with the setscrew (BT3x8, 2 pieces). 8) Set the lower duplex cover. BT3x8 Hooks Lower duplex cover BT3x8 Paper exit unit Paper guide (B) PU Fig.6-23 9) After the replacement of the paper feed roller and the separator pad, press the “GO”...
Page 195: Replacement Of Transfer Unit Pu
2.6 Replacement of Transfer Unit PU (120K KIT) <Criterion of Replacement> Since the transfer drum is defined as periodic replacement parts as per Table 6-4, it should be replaced when the print quality failure occurs due to failed transfer drum. The following message appears in LCD of the control panel.
Page 196 Sequence of Assembling 1) Install the transfer unit PU into the printer. 2) Secure the transfer unit PU with the knob screw (2 pieces). 3) Close the paper exit unit. Transfer unit PU Knob screws Paper exit unit Fig.6-25 4) After the replacement of the transfer unit, press the “GO” and “+” buttons together to reset parts life.
Page 197: Chapter Vii Disassembly
CHAPTER VII DISASSEMBLY...
Page 198: Replacement Procedure Of Maintenance Parts
CHAPTER VII DISASSEMBLY REPLACEMENT PROCEDURE OF MAINTENANCE PARTS Respect the procedures and precautions described below for the maintenance work. 1) Do not implement any operation, disassembly, and modification etc., which are not set out in this Manual. 2) Turn the power supply OFF and unplug the power supply cable from the outlet prio to starting the disassembly or check.
Page 199 Test on Product Safety This laser printer has the safety structure in compliance with IEC950, but there is still concern of the electric shock due to the current leakage that may be caused if the replacement work of maintenance parts was not implemented properly and accurately. After the replacement and/or disassembling of the parts subject to the safety test described in this document is completed, please confirm the safety requirements according to the following procedures prior to powering on and carrying out the test drive.
Page 200 Table 7-1: Table of Applicable Screws VII-3...
Page 201: Parts Name
PARTS NAME Cover <Front View> Paper Exit Unit Top Cover PU 4.46 Top Cover Assy PU Front Cover PU 4.33 Right Side Cover PU Fig.7-1 <Rear View> Fuser Unit Operator Panel PU Rear Cover Left Side Cover PU Fig.7-2 VII-4...
Page 202: Arrangement Boards
Arrangement Boards Panel Board PU I/O Board PU 4.10 Erase Lamp PU HV Power Supply PU 4.14 4.36 LV Power Supply PU 4.37 Engine Controller Board PU 4.35 Fig.7-3 Motor Units Exit Fan PU 4.58 Main Motor PU Power Supply Fan PU 4.18 4.11 Developer Motor PU...
Page 203: Clutches And Solenoids
Clutches and Solenoids Cleaning Roller Clutch PU Toner Retract Solenoid PU 4.17 4.39 Fuser Clutch PU 4.19 TR Cam Clutch 4.20 Registration Clutch PU 4.21 Paper Feed Clutch PU 4.22 Developer Clutch PU 4.25 Fig.7-5 Sensors Paper Sensor (PFUL) 4.53 Toner Sensor PU (TPD) 4.30 Paper Sensor (PT2)
Page 204: Disassembly Flow
DISASSEMBLY FLOW 4.31 RIGHT TONER GUIDE PU 4.33 INNER FRONT COVER PU/ FRONT COVER PU 4.44 LEFT TONER GUIDE PU 4.45 UPPER DUPLEX COVER/ LOWER DUPLEX COVER 4.50 REGISTRATION ACTUATOR PU 4.51 TRANSFER ROLLER GUIDE PU OPC CHARGE ROLLER PU PAPER TRAY FUSER UNIT CLEANING ROLLER COVER PU/...
Page 205 4.12 WASTE TONER AUGER PU 4.13 WASTE TONER AGITATOR PU 4.14 ERASE LAMP PU 4.15 MARKER SENSOR 4.16 TONER DENSITY SENSOR PU RIGHT SIDE COVER PU 4.24 WASTE TONER HOLDER ASSY PU 4.34 RIGHT TRAY GUIDE PU VII-8...
Page 206 4.23 4.24 4.46 DEVELOPER MOTOR PU WASTE TONER HOLDER ASSY PU PAPER EXIT UNIT 4.25 DEVELOPER CLUTCH PU (DCLY/DCLM/DCLC/DCLK) 4.26 DEVELOPER GEAR PU/ DEVELOPER DRIVE ASSY PU 4.30 TONER SENSOR PU (TPD) 4.52 4.47 4.60 EXIT GUIDE ASSY PU/ TRANSFER ROLLER ASSY PU PAPER GUIDE (A) PU EXIT DRIVE ASSY PU/ EXIT IDLE ROLLER ASSY PU...
Page 207 4.42 BELT SENSOR MAIN PCB LEFT SIDE COVER PU/ DUPLEX CONNECTOR COVER 4.10 I/O BOARD COVER PU/ I/O BOARD PU 4.11 4.35 POWER SUPPLY FAN PU/ ENGINE CONTROLLER BOARD PU INTERLOCK SWITCH PU (TOP, PAPER EXIT)/ POWER SUPPLY FAN DUCT PU 4.36 HV POWER SUPPLY PU 4.37...
Page 208: Disassembly Procedure
DISASSEMBLY PROCEDURE Note: Always remove the toner cartridge before disassembling any parts. OPC Charge Roller PU 1) Turn off the printer power switch. 2) Remove the AC cord. 3) Open the top cover PU. 4) To release the lock, push the green lock lever BC on both sides inwards. 5) Remove the OPC charge roller PU.
Page 209: Fuser Unit
Fuser Unit Caution [ Caution and Request for Replacement of Maintenance Parts ] (1). The fuser unit is the unit replaceable component and consists of the important parts that are important for the product safety. The disassembly and replacement of the maintenance parts shall be performed by the skillful personnel having completed the appropriate training and at the appropriate location having the test facilities for the product safety test.
Page 210 1) Open the paper exit unit. 2) Release the two lock knobs to remove the fuser unit from the printer. Lock knob Fuser unit Lock knob Paper exit unit Fig.7-8 Remove the setscrew (A) (BT3x6, 2 pieces) and pull up the two release levers to remove the top fuser cover FU.
Page 211 CAUTION This is the replacement work of important part in terms of the product safety. Therefore, this work should be performed by the skillful personnel having the sound knowledge and at the location where the safety is ensured. (Measurement of the insulation resistance needs to be done.) CAUTION The fuser unit and its peripheral parts are very hot (approximately 100°C).
Page 212 Fuser lamp (I): SM3x6 with washer Lamp holder (E): SM3x6 with washer Fuser roller (HT) (E): SM3x6 with washer Fuser lamp (K): FU shoulder screw Fuser connector FU (L): BT3x12 Bottom fuser cover FU (L): BT3x6 Thermistor assy FU (J): ST3x6 with washer Fig.7-9 VII-15...
Page 213: Cleaning Roller Cover Pu / Cleaning Roller Pu
Cleaning Roller Cover PU / Cleaning Roller PU 1) Open the top cover PU. 2) Release the two hooks to remove the cleaning roller cover PU. 3) Remove the cleaning roller PU. Cleaning roller cover PU Cleaning roller PU Top cover PU Fig.7-10 VII-16...
Page 214: Top Cover Assy Pu / Top Cover Pu
Top Cover Assy PU / Top Cover PU 1) Remove the setscrew (BT4x10, 1 piece) of the operator panel cover PU. 2) Remove the operator panel cover PU and operator panel PU. 3) Disconnect the harness connector of operator panel PU. 4) Open the front cover PU and paper exit unit.
Page 215: Right Side Cover Pu
Right Side Cover PU 1) Remove the waste toner pack PU. 2) Remove the setscrew (BT4x10, 2 pieces) of right side cover PU. 3) Remove the right side cover PU from the printer. Right side cover PU BT4x10 Waste toner pack PU Fig.7-12 Main PCB 1) Remove the two setscrews.
Page 216: Left Side Cover Pu / Duplex Connector Cover
Left Side Cover PU / Duplex Connector Cover 1) Remove the duplex connector cover. 2) Remove the setscrew (BT4x10, 2 pieces) of the left side cover PU. 3) Remove the left side cover PU from the printer. Left side cover PU Duplex connector cover BT4x10 Fig.7-14...
Page 217: I/O Board Cover Pu / I/O Board Pu
4.10 I/O Board Cover PU / I/O Board PU 1) Remove the setscrew (ST3x6, 3 pieces) of the shield cover (A). 2) Remove the shield cover (A). 3) Remove the setscrew (ST3x6, 5 pieces) of the I/O board cover PU. 4) Remove the I/O board cover PU.
Page 218: Power Supply Fan Pu / Interlock Switch Pu (Top, Paper Exit) / Power Supply Fan Duct Pu
4.11 Power Supply Fan PU / Interlock Switch PU (Top, Paper Exit) / Power Supply Fan Duct PU 1) Remove the setscrew (BT4x10, 1 piece) of the power supply fan assy PU. 2) Remove the power supply fan assy PU from the frame. 3) Disconnect the connector connecting to the power supply fan assy PU.
Page 219: Waste Toner Auger Pu
4.12 Waste Toner Auger PU 1) Remove the setscrew (BT3x8, 2 pieces) of the waste toner auger PU. 2) Remove the waste toner auger PU from the frame. Note: • In this instance, do not cause the waste toner fall on the floor. •...
Page 220: Erase Lamp Pu
4.14 Erase Lamp PU 1) Remove the knob screw (2 pieces) of the transfer unit PU from rear. 2) Holding the band provided at the top side of the transfer unit PU, pull out the transfer unit PU from the inside of the frame. In this instance, do not cause the belt surface touch the peripheral parts.
Page 221: Marker Sensor
4.15 Marker Sensor 1) Disconnect the two connectors connecting to the maker sensor and toner density sensor PU. 2) Remove the setscrew (BT4x8, 2 pieces), and remove the sensor base (TB) from the frame. 3) Remove the maker sensor from the sensor base (TB). BT4x8 Connector Connector...
Page 222: Cleaning Roller Clutch Pu
4.17 Cleaning Roller Clutch PU 1) Remove the harness connector of the cleaning roller clutch PU. 2) Remove the setscrew (TS3x8, 3 pieces) fixing the cleaning roller clutch PU. 3) Remove the cleaning roller clutch PU from the frame. Frame Cleaning roller clutch PU TS3x8 Connector...
Page 223: Fuser Clutch Pu
4) Remove the setscrew (BT3x12, 4 pieces) of the main motor PU. 5) Remove the main motor PU from the OPC drive gear assy PU. CAUTION Do not damage the output shaft, otherwise, it may cause the degradation of print quality. OPC drive gear assy PU Main motor PU BT3x12...
Page 224: Tr Cam Clutch
4.20 TR Cam Clutch 1) Remove the washer fixing the TR cam clutch. 2) Remove the TR cam clutch from the shaft. Shaft TR cam clutch Washer Fig.7-27 Note: When reassembling the motors, ensure to secure each of them onto the correct position since they are exactly alike.
Page 225: Paper Feed Clutch Pu
4.22 Paper Feed Clutch PU 1) Remove the washer fixing the paper feed clutch PU to the shaft. 2) Remove the paper feed clutch PU from the shaft. Shaft Paper feed clutch PU Washer Fig.7-29 4.23 Developer Motor PU 1) Remove the setscrew (ST3x6, 4 pieces) fixing the developer motor PU. 2) Remove the developer motor PU from the developer drive assy PU.
Page 226: Waste Toner Holder Assy Pu
4.24 Waste Toner Holder Assy PU 1) Loosen the setscrew (BT3x8, 1 piece) of the plate. 2) Uprear (Do not remove) the waste toner feeder pipe. 3) Remove the setscrew (BT3x8, 1 piece and BT3x12, 1 piece) of the waste toner holder assy PU.
Page 227: Developer Gear Pu / Developer Drive Assy Pu
4.26 Developer Gear PU / Developer Drive Assy PU 1) Remove the washer (4 places) fixing the developer gear PU to the shaft. 2) Remove the developer gear PU (4 places) from the inside of the frame. 3) Remove the setscrew (BT3x8, 4 pieces) of the developer drive assy PU. 4) Remove the developer drive assy PU from the frame.
Page 228: Main Drive Gear Assy Pu
4.28 Main Drive Gear Assy PU 1) Close the paper exit unit. 2) Remove the setscrew (ST4x6, 1 piece) of the side base stay (R). 3) Open the paper exit unit. 4) Remove the setscrew (BT4x10, 3 pieces and ST3x6, 2 pieces) of the side base stay (R) to remove the side base stay.
Page 229: Waste Toner Feeder Pu
4.29 Waste Toner Feeder PU 1) Remove the setscrew (BT3x8, 2 pieces) to remove the cover C. 2) Remove the setscrew (BT3x8, 1 piece) to remove the plate. 3) Remove the waste toner feeder PU from the frame. Note: • One end of waste toner feeder PU is supported by the hole inside the frame. •...
Page 230: Toner Sensor Pu (Tpd)
4.30 Toner Sensor PU (TPD) 1) Remove the setscrew (BT3x8 and BT3x6, 1each) of the toner sensor PU (TPD). 2) Remove the connector (inside the frame) connecting to the toner sensor PU (TPD). 3) Remove the toner sensor PU (TPD) from the frame. <Confirmation Items>...
Page 231: Right Toner Guide Pu
4.31 Right Toner Guide PU 1) Remove the setscrew (BT4x8, 1piece) of the right toner guide PU. 2) Remove the right toner guide PU from the frame. Frame BT4x8 Right toner guide PU Fig.7-38 4.32 Laser Assy PU / Laser Unit Fan Assy PU 1) Disconnect the connector connecting to the laser unit fan assy PU.
Page 232 3) Remove the setscrew (TS3x12, 4 pieces) of the laser assy PU. 4) Disconnect the connector connecting to the laser assy PU. 5) Remove the laser assy PU from the frame. CAUTION • Laser beam of the class IIIB is scanned in the laser assy PU. Do not attempt to disassemble the laser assy PU because it is dangerous.
Page 233: Inner Front Cover Pu / Front Cover Pu
4.33 Inner Front Cover PU / Front Cover PU 1) Remove the setscrew (BT3x8, 8 pieces) of the front cover PU. 2) Remove the front cover PU from the inner front cover PU. 3) Remove the fixing band from the machine side. 4) Decline toward you the support pin (left and right) connecting to the frame with the front door unit closed, and then disconnect the connection.
Page 234: Engine Control Board Pu
4.35 Engine Control Board PU 1) Disconnect all the connectors connecting to the engine controller board PU. 2) Remove the setscrew (ST3x6, 4 pieces) of the engine controller board PU. 3) Remove the engine controller board PU from the frame. ST3x6 Frame Engine controller board PU...
Page 235: Hv Power Supply Pu
4.36 HV Power Supply PU 1) Unhook the two hooks and remove the air guide from the controller box. 2) Remove the setscrew (ST3x6, 4 pieces) of the shield cover (B). 3) Remove the shield cover (B) from the frame. 4) Remove the setscrew (ST3x6, 3 pieces) of the controller box.
Page 236: Lv Power Supply Pu / Power Supply Bracket Pu Assy
4.37 LV Power Supply PU / Power Supply Bracket PU Assy 1) Remove the setscrew (M4x6, 1 piece with star washer) of the grounding terminal. 2) Disconnect the connector of the switch harness from the LV power supply PU. 3) Remove the setscrew (ST3x6, 3 pieces) of the power supply bracket PU assy. 4) Remove the power supply bracket PU assy (with the switch).
Page 237: Fuser Connector Pu
4.38 Fuser Connector PU 1) Remove the setscrew (ST3x6,4 pieces and BT3x8,3 pieces) of the shield base (LV). 2) Remove the shield base (LV) from the frame. 3) Remove the setscrew (M4x6, 1 pieces) of the ground wire. 4) Remove the setscrew (BT3x8 2 pieces and TS3x6, 2 pieces) of the shield base (HV).
Page 238: Toner Retract Solenoid Pu (Desly/Deslm/Deslc/Deslk) / Toner Retract Cam Pu
4.39 Toner Retract Solenoid PU (DESLY/DESLM/DESLC/DESLK) / Toner Retract Cam PU 1) Remove the harness connector of the developer retract solenoid PU. 2) Remove the setscrew (BT3x8, 2 pieces) of the developer retract solenoid PU. 3) Remove the toner retract solenoid PU and toner retract cam PU from inside of the frame.
Page 239: Toner Sensor Pu (Ttr)
4.40 Toner Sensor PU (TTR) 1) Remove the setscrew (BT3x8 and BT3x6, 1 each) of the toner sensor PU (TTR). 2) Disconnect the connector connecting to the toner sensor PU (TTR). 3) Remove the toner sensor PU (TTR) from the frame. <Confirmation Items>...
Page 240: Toner Present Sensor Pu
4.41 Toner Present Sensor PU 1) Remove the setscrew (BT3x6, 2 pieces) of the toner present sensor PU. 2) Remove the toner present sensor PU from the frame. Note: When installing the toner key sensor PU, pushing the sensor to the front side and then tighten the setscrew to fix the sensor.
Page 241: Left Tray Guide Pu / Paper Size Sensor Pu / Room Temp Thermistor Pu
4.43 Left Tray Guide PU / Paper Size Sensor PU / Room Temp Thermistor PU 1) Remove the setscrew (BT3x8, 2 pieces) of the left tray guide PU. 2) Pull out the left tray guide PU from the cassette side. 3) Disconnect the connector connecting to the paper size sensor PU.
Page 242: Left Toner Guide Pu
4.44 Left Toner Guide PU 1) Remove the setscrew (BT4x8, 1 piece and BT3x6, 2 pieces) of the left toner guide 2) Remove the left toner guide PU from the frame. Frame BT3x6 Left toner guide PU BT4x8 Fig.7-52 4.45 Upper Duplex Cover / Lower Duplex Cover 1) Close the paper exit unit.
Page 243: Paper Exit Unit
4.46 Paper Exit Unit 1) Open the paper exit unit. 2) Remove the setscrew (BT4x20, 1 piece and collar) from the support band. 3) Remove the setscrew (ST4x6, 1 piece) from the support plate. In this instance, maintain the paper exit unit closed. 4) Open the paper exit unit and pull its right side to the backside, so that the hinge shaft can be removed from the right-side base assy.
Page 244: Transfer Roller Assy Pu
4.47 Transfer Roller Assy PU 1) Remove the transfer roller assy PU. Paper exit unit Transfer roller assy PU Fig.7-55 4.48 Transfer Base Assy PU 1) Remove the setscrew (ST3x6, 3 pieces and BT3x8, 3 pieces) of the transfer base assy PU.
Page 245: Registration Roller Assy Pu
4.49 Registration Roller Assy PU 1) Remove the washer, coupling gear and bearing from the registration roller assy PU. 2) Remove the washer and bearing of counter-coupling gear side. 3) Remove the registration roller assy PU from the transfer unit base. Transfer unit base Washer Bearing...
Page 246: Transfer Roller Guide Pu
4.51 Transfer Roller Guide PU 1) Disconnect the connection of the arm ring. 2) Remove the setscrew (ST3x6, 4 pieces) of the transfer roller guide PU. 3) Remove the transfer roller guide PU from the rear cover. Rear cover ST3x6 ST3x6 Arm ring Transfer roller guide PU...
Page 247 4) Remove the spring from the exit drive assy PU. 5) Remove the setscrew (A) (BT3x12, 1 piece and BT3x8, 1 piece) and collar of the exit drive assy PU. (Remove the setscrew by turning the gear holder.) 6) Remove the exit drive assy PU from the exit guide assy PU. 7) Remove the setscrew (B) (BT3x12, 1 piece) and collar of the rear cover latch arm.
Page 248: Paper Sensor (Pful)
4.53 Paper Sensor (PFUL) 1) Remove the paper sensor (PFUL) from the exit idle roller assy PU. Paper sensor (PFUL) Exit idle roller assy PU Fig.7-62 4.54 Exit Roller Assy PU / Paper Exit Actuator PU 1) Pull out the coupling gear from the exit roller assy PU. (This gear is the snap-in type.) 2) Remove the actuator from the paper exit actuator PU.
Page 249: Fuser Exit Actuator Pu
4.55 Fuser Exit Actuator PU 1) Remove the washer. 2) Slide the fuser exit actuator PU to the arrow direction. 3) Remove the fuser exit actuator PU from the exit guide assy PU. Exit guide assy PU Fuser exit actuator PU Washer Fig.7-64 4.56...
Page 250: Discharging Brush Pu
4.57 Discharging Brush PU 1) Remove the hinge cover. 2) Remove the setscrew (BT3x8, 2 pieces) of the shaft holder. 3) Remove the shaft holder from the exit guide assy PU. 4) Remove the discharging brush PU from the exit guide assy PU. Exit guide assy PU Shaft holder BT3x8...
Page 251: Exit Fan Pu / Exit Fan Duct Pu
4.58 Exit Fan PU / Exit Fan Duct PU 1) Remove the setscrew (ST3x6, 2piece) of the harness cover. 2) Remove the harness cover from the rear cover. 3) Disconnect the connector connecting to the exit fan PU. 4) Remove the setscrew (BT3x8, 1 piece) of the exit latch (L) to remove the exit latch (L).
Page 252: Rear Cover Latch Assy Pu
4.59 Rear Cover Latch Assy PU 1) Remove the setscrew (BT3x8, 1 piece) of the exit latch (R) to remove the exit latch (R). 2) Remove the setscrew (BT3x8, 1 pieces and ST3x6, 1 piece) of the rear cover latch assy PU.
Page 253: Paper Guide (A) Pu
4.60 Paper Guide (A) PU 1) Remove the setscrew (BT3x8, 2 pieces) of the paper guide (A) PU. 2) Remove the paper guide (A) PU. BT3x8 Paper guide (A) PU Fig.7-69 4.61 Paper Guide (B) PU 1) Remove the setscrew (BT3x8, 2 pieces) of the paper guide (B) PU. 2) Remove the paper guide (B) PU.
Page 254: Paper Guide (C) Pu / Paper Sensor (Pt1, Peu) / Ohp Sensor Pu / Tray Empty Actuator Pu
4.62 Paper Guide (C) PU / Paper Sensor (PT1, PEU) / OHP Sensor PU / Tray Empty Actuator PU 1) Disconnect the connector connecting to the paper sensor (PT1). 2) Remove the setscrew (BT3x8, 2 pieces) of the paper guide (C) PU. 3) Disconnect the connector connecting to each sensor of the paper guide (C) PU.
Page 255: Paper Guide (D) Pu
4.63 Paper Guide (D) PU 1) Remove the setscrew (BT3x8, 2 pieces) of the paper guide (D) PU. 2) Remove the paper guide (D) PU from the frame. Frame BT3x8 Paper guide (D) PU Fig.7-72 4.64 Paper Feed Roller / Separator Pad 1) Sliding the paper feed roller along the shaft, remove it from the shaft.
Page 256: Adjustments And Updating Of Settings, Required After Parts Replacement
ADJUSTMENTS AND UPDATING OF SETTINGS, REQUIRED AFTER PARTS REPLACEMENT Adjustment of the Guide B position of Top Fuse Cover FU 1) Install the Top Fuse Cover FU with the setscrews (ST3x6, 2 pieces). 2) Loosen the Guide B setscrews (BT3x8, 2 pieces) to make the Guide B attached to the Separation Guide.
Page 257: Chapter Viii Troubleshooting
CHAPTER VIII TROUBLESHOOTING...
Page 258: Outline Of Troubleshooting
CHAPTER VIII TROUBLESHOOTING OUTLINE OF TROUBLESHOOTING Printer in trouble Reset the power switch [Trouble still repeats] Is power supply operating normally ? Check power cord and cable [Normally Operating] Operator Call Paper Transport Error Printer Error Imaging Failure VIII-1...
Page 259: Operator Call
OPERATOR CALL 2.1 Operator Call Alarm LED is lit, and applicable messages appear on the liquid crystal display (LCD) in the following cases: (1). Consumables need to be replenished. (2). Waste toner bottle is full. (3). Paper jam occurred. (4). Periodic maintenance is required. (5).
Page 260 Table 8-1 Subject of Operator Call Countermeasure Code Message of Display CHK MEDIA TYPE UPP/LF1 Replace with the correct media type. [Inconsistency of media] NO MEDIA UPP/LOW [No paper in the upper tray] Replenish papers. [No paper in the lower tray] CHK MEDIA for DUPLEX Change the media or designation.
Page 261 Subject of Operator Call Countermeasure Code Message of Display ALIGN BELT CG Confirm the installation of belt [Belt cartridge not installed.] cartridge. ALIGN TRANSFER ROLLER Install the transfer roller properly. [Transfer Roller is not installed.] ALIGN OPC CHARGER Install the charger roller. [Charger Roller is not installed.] MEDIA JAM FEED Remove paper tray, and remove...
Page 262: In Case That The Operator Call Is Not Cleared
In case that the operator call is not cleared Normally, the operator call can be cleared by the implementation of applicable countermeasures listed in Table 8-1. If not cleared, the printer engine may be in trouble. Check and implement appropriate countermeasures in accordance with the following procedures.
Page 263 Message "NO TRAY UPP/LOW" is indicated again. Check Paper Tray PU. Is Paper Size Sensor Lever damaged ? Replace the Paper Tray PU. Check Paper Size Sensor PU (PSU). Replace the Paper Size Is PSU properly installed damaged ? Sensor PU. Is connector of Paper Size Sensor disconnected? Connect the connector.
Page 264 Message "REPLACE TONER" is indicated again. Confirm Toner Cartridge PU. Is the Toner Cartridge replaced Replace the identified as identified on the panel ? Toner Cartridge PU. Confirm Toner Sensor PU. When the identified Toner Cartridge is not mounted, is the message "16"...
Page 265 Message "CHECK WASTE TONER" is indicated again. Confirm the installation of Waste Toner Bottle PU. Install the waste toner Is Waste Toner Bottle PU installed properly ? bottle PU properly. Confirm Waste Toner Sensor PU. Replace the Waste Toner Is the Waste Toner Sensor PU damaged ? Holder Assy PU.
Page 266 ALIGN TONER CG Y/M/C/K Confirmation for installation of toner cartridge PU. Install the toner cartridge PU. Is the applicable toner cartridge PU installed properly ? Replace the existing toner cartridge with brand new toner cartridge PU. Is the message "16 ALIGN TONER CG Y/M/C/K" cleared ? Confirmation of toner sensor PU.
Page 267 ALIGN FU UNIT Confirmation for installation of fuser unit FU. Is the applicable fuser unit FU installed properly ? Install the fuser unit FU. Replace the damaged fuser Is the connector damaged ? connector FU. Confirm the installation of fuser unit FU. Is the message "16 ALIGN FU UNIT"...
Page 268 ALIGN BELT CG Confirmation for installation of belt cartridge PU. Is the applicable belt cartridge PU installed properly ? Install the belt cartridge PU. Is the OPC belt's mark smeared with toner ? Clean the smeared mark Confirm that the belt cartridge PU is installed properly. Is the message "16 ALIGN BELT CG"...
Page 269 ALIGN TR ROLLER Confirmation for installation of transfer roller assy PU. Is the applicable transfer roller assy PU installed properly ? Install the transfer roller assy PU. Is the TR bias electrode deformed ? Repair the deformed electrode. Confirm the installation of transfer roller assy PU. Is the message "16 ALIGN TR ROLLER "...
Page 270 Message "MEDIA JAM FEED" is indicated again. Confirm the installation of Paper Tray PU. Is paper in use a recommended paper ? Use a recommended paper. Is the paper cassette properly installed ? Reset the tray properly. Is the cassette base damaged or deformed ? Replace the tray PU.
Page 271 Message "MEDIA JAM INNER" remains. Confirm if there is any paper debris found at paper feeding and transfer area or not. Is there paper debris within paper pass error. Remove the paper debris. Confirm the installation of rear cover assy PU. Open and close the rear cover assy.
Page 272 Message "MEDIA JAM OUTER" is indicated again. Confirm if there is any paper debris found in paper exit guide or not. Is the paper debris is found in above units. Remove the paper debris. Confirm the Paper Exit Guide. Check and Reset the Fuser Does Fuser Exit Actuator PU operate smoothly? Exit Actuator PU.
Page 273 Message "CLOSE PANEL FRONT/TOP" is indicated again. Confirm if Front/Top Cover PU is closed or not. Is Front/Top Cover PU locked firmly ? Open and close the Cover. Replace the Front Cover Assy PU. Is Front Cover Lock Lever deformed ? Is the Top Cover PU or Switch Replace the Top Cover Assy PU.
Page 274 18 Message "CLOSE Rear Cover Assy" is indicated again. Confirm if Rear Cover Assy PU is closed or not. Open and close the Rear Cover Is Rear Cover Assy locked firmly ? Assy PU. Replace the Rear Cover Assy PU. Is Rear Cover Assy Lock deformed ? Is Error Code 18 cleared ? Confirm the Interlock "DSW3".
Page 275: Paper Transport Error
PAPER TRANSPORT ERROR Paper is transported through the path shown in Fig.8-1. Paper jams at the following locations are easily cleared. • Paper Feeding Part • Fuser Part • Transfer Part • Paper Exiting Part Paper Exit Roller Assy PU Cleaning Roller PU Fuser Unit FU Top Cover PU...
Page 276: Inner Jam
Inner Jam Table 8-3-2 Problem Item Check Item Result Corrective Action Open the rear cover assy PU for check. Transportation Remove the paper Is there any paper inside the Part unit ? inside. Is the transfer roller firmly locked Fix the transfer roller by the lock lever ? with the lock lever.
Page 277: Printer Error
PRINTER ERROR If errors or failures occurred inside the printer, the applicable error message will be displayed on the operator panel, and the printer stops. If errors or failures would repeat even after pressing the - key, confirm the error code, and take the clearance method described in section 4.2 in this chapter.
Page 278: Error Code
Error Code Table 8-4-3 Code Error Message Description ERROR S01 Fatal Error SERVICE CALL ERROR S02 ADRL Error (Address Load Error) SERVICE CALL ERROR S03 ADRS Error (Address Save Error) SERVICE CALL ERROR S04 Bus Error (INSTRUCT) SERVICE CALL ERROR S05 Bus Error (DATA L/S) SERVICE CALL ERROR S06...
Page 279 ERROR H66 NVRAM Write Error SERVICE CALL ERROR H67 NVRAM Read Error SERVICE CALL ERROR H68 NVRAM Bus Error SERVICE CALL ERROR H73 Flash Read Error SERVICE CALL ERROR H74 Flash Write Error SERVICE CALL ERROR EC3 NVRAM Error SERVICE CALL ERROR EC4 Engine Controller Hardware Error SERVICE CALL...
Page 280 ERROR EEL Erase LED Error SERVICE CALL ERROR EF0 Power Supply Fan Error SERVICE CALL ERROR EF3 Laser Fan Error SERVICE CALL ERROR EF4 Exit Fan Error SERVICE CALL ERROR EF5 HV Power Supply Error SERVICE CALL ERROR EF6 LV Power Supply Error SERVICE CALL ERROR EH0 Fuser Thermistor Error...
Page 281 H67, H68 2. Does this problem appear when printing specific data or printing under a specific environment? If yes, inform the Brother office of used specific data, printer condition and system requirement. H39, H60, H73, H74 Turn off the printer. Wait a few seconds, and then turn it on again.
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Page 306 Fuser Unit FU MCTL FUCN Fuser Heater Fu P.W.B Thermistor FUTEMP SGND LVCN 9 10 Fuser Connector LV Power Supply PU 9 10 ACN5 VIII-49...
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Page 312 P1, P2 Error Code Controller Board DU Part Name Reset the power supply switch. Is the error message still on despite of Temporary error. above reset ? Possible to continue the drive. Confirm the harness between MCTL(DPCN), LVPS(ACN4) and Controller Board DU (CN100, CN101). Connect the harness and Is the harness and connector connected connector properly. properly. Replace the Controller Board DU. Is the code P1(P2) cleared ? Completed Engine Controller Board PU Controller Board DU Duplex Connector MCTL Cable CN100 DPCN CN101 +24V-2 LVPS PGND +24V-2 ACN4 PGND VIII-55...
Page 313 Error Code Part Name Drive Solenoid DU (SOL1) Confirm the connection of harness. Is the connector CN3 connected properly Connect the harness between the SOL1 and controller Board DU ? connected properly. Is the code P3 cleared ? Replace the Drive Solenoid DU.
Page 314 Error Code Drive Motor DU Part Name Confirm the resistance of motor. Is the resistance approximately 15 respectively Replace the STM1. between STM1 connector CN140-1 and -2, and -3 and -4? Is the resistance approximately 15 respectively Replace the STM2. between STM2 connector CN140-1 and -2, and -3 and -4? Replace the Controller Board DU.
Page 315 Error Code Part Name Diverter Solenoid DU (SOL1) Confirm the connection of harness. Is the connector CN103 connected properly Connect the harness between the SOL1 and controller Board DU ? connected properly. Is the code P5 cleared ? Replace the Diverter Solenoid DU.
Page 316: Image Failure
IMAGE FAILURE (10) (11) (12) (13) (14) VIII-59...
Page 317 (15)-a (15)-b (16) (17) (18) (19) (20) (21) (22) (23) (24) (25) Fig.8-2 VIII-60...
Page 318 Background Phenomenon Background is smeared due to toner spread as shown in print sample (1) of Fig.8-2. Main Causes 1) Too small charging amount in the development process. 2) Insufficient contact of the developer roller's bias pole. 3) Life or failure of the belt cartridge PU. 4) Failure of the HV power supply unit PU (HVU).
Page 319 Missing Image at Edge Phenomenon There is missing or peeling toner found in the image at the edge as shown in the print sample (2) of Fig.8-2. Main Causes 1) Too small toner mass amount and charging amount in the development process. 2) The OPC belt is deformed as waving.
Page 320 Jitter Phenomenon Uneven optical density appears periodically in the horizontal direction on the printed image as shown in print sample (3) of Fig.8-2. Main Causes 1) Failure of main motor. 1-1) Irregular rotation of the drive motor. 1-2) Failure of the OPC drive gear ASSY PU. 1-3) Variation of OPC belt running speed due to above reasons.
Page 321 Ribbing Phenomenon Light print occurs on the right or left hand side of the image as shown in print sample (4) Fig.8-2. Main Causes 1) Slight tilt on the surface of printer installation table. (Tilt should be less than 1°.) 2) Toner amount in the toner cartridge PU is insufficient.
Page 322 Wrinkle / Image Migration Phenomenon Banding shadows of different optical density appear due to the wrinkle, image migration and color misregistration occurring on the print paper as shown in print sample (5) of Fig.8-2. Main Causes 1) Paper in use is not a recommended paper, or is an abandoned paper. 2) The rear cover ASSY PU is not locked properly.
Page 323 White Line (1) Phenomenon Vertical white line appears in the specific color area when test-printed in the four color mode (Stripe Mode), as shown in print sample (6) of Fig.8-2. Main Causes 1) Foreign particles adhere to Developer Roller of specific color in question. 2) Developer Roller’s surface is damaged.
Page 324 White Line (2) Phenomenon Vertical white line appears from the leading edge to the trailing edge of printed image as shown in print sample (7) of Fig.8-2. Main Causes 1) Dustproof Glass of Laser ASSY PU is smeared with toner or foreign particles. 2) Hairy foreign particles adhere to the laser beam opening of Laser ASSY PU.
Page 325 Vertical White Band Phenomenon White band appears in the vertical direction of printed image as shown in print sample (8) of Fig.8-2. Main Causes 1) Failure of the toner cartridge PU (blade). 2) Stain of the OPC charger roller PU. 3) Stain of the OPC belt.
Page 326 Black Line Phenomenon Fine black line appears in the printed image as shown in print sample (9) of Fig.8-2. Main Causes 1) The toner cartridge PU blade is deformed. 2) The OPC belt surface is damaged. 3) Foreign particles (paper dust, etc.) are stuck in between the cleaning blade and the OPC belt.
Page 327 I-10 Vertical Line Phenomenon Vertical line appears in the printed image as shown in print sample (10) of Fig.8-2. Main Causes 1) Foreign particles (dust, etc.) adhere to the parts located around the OPC belt and the transfer belt, and consequently contact the toner image formed on the belt surface. Fuser Unit FU Transfer Unit Cleaner PU Cleaning Roller...
Page 328 I-11 Vertically Staggered Image Phenomenon Printed image staggered in the vertical direction as shown in print sample (11) of Fig.8-2. Main Causes 1) Shock or vibration is applied to the printer. 2) Failure of the laser ASSY PU : Vibration from the rotation of scanner motor. Countermeasures 1) Do not apply shock or vibration to the printer body.
Page 329 I-12 Banding Phenomenon Banding line appears in the horizontal direction as shown in print sample (12) of Fig.8-2. Main Causes 1) This is a transfer failure due to the uneven rotational speed caused by the shock which occurs when the seam of OPC belt passes over the cleaning blade. 2) The OPC belt and the transfer belt fail to maintain the regular and proper rotation due to the impact caused during the retract of the toner cartridge.
Page 330 I-13 White Band Phenomenon White banding line appears in the horizontal direction, and consequently causes a missing image as shown in print sample (13) of Fig.8-2. Main Causes 1) Deformation of the transfer roller. 2) Contact failure of the transfer roller's bias terminal. 3) Failure of the transfer roller clutch PU.
Page 331 I-14 Toner Drop Phenomenon Toner spot stain is caused on the print by toner dropping within the printer engine as shown in print sample (14) of Fig.8-2. Main Causes 1) Toner drops on the transfer belt due to the breakdown of the waste toner auger. 1-1) Mylar of the waste toner auger is deformed.
Page 332 I-15 White Spot / Black Spot Phenomenon White spots and black spots appear on the print as shown in print sample (15) of Fig.8-2. Main Causes 1) Foreign particles adhere to the OPC belt or the transfer belt. 2) The OPC belt or the transfer belt is damaged. 3) Foreign particles mixed in the toner.
Page 333 I-16 Mixed Color Image Phenomenon Mixed color image appears in the print as shown in print sample (16) of Fig.8-2. Main Causes 1) Retract error of the toner cartridge PU. 2) Retract error of the transfer roller ASSY PU. 3) Retract error of the transfer belt cleaning roller PU. Transfer Cleaning Roller PU Belt Cartridge PU Toner Cartridge PU...
Page 334 I-17 Color Misregistration Phenomenon Color misregistration is caused between two colors as shown in print sample (17) of Fig.8-2. Main Causes 1) The OPC belt off-track error. 2) The OPC belt fails to maintain the regular and proper rotation due to the impact caused when the toner cartridge contacts the OPC belt.
Page 335 I-18 Mottle Phenomenon Variation of the optical density is found in the image as shown in print sample (18) of Fig.8-2. Main Causes 1) The rear cover ASSY is not fixed in place. 2) Installation of the transfer roller is not accurate. 3) THV output of DC high voltage unit is not normal.
Page 336 I-19 Residual Image Phenomenon Image of the preceding page appears on every other page as shown in print sample (20) Fig.8-2. Main Causes 1) Cleaning failure due to the lifted cleaning brush of the transfer unit cleaner. 2) Contact failure of the belt cleaner's bias terminal. 3) Failure of HV power supply unit PU.
Page 337 I-20 Insufficient Gloss Phenomenon Gloss of the print is not sufficient as shown in print sample (20) of Fig.8-2. Main Causes 1) The fuser roller is deteriorated. 2) The fusing temperature is not properly controlled. 3) The mode setting of the paper is not correct. Countermeasures 1) Replace the fuser unit FU with a new fuser unit FU.
Page 338 I-21 Back Stain Phenomenon Back side of the print paper is stained as shown in print sample (21) of Fig.8-2. Main Causes 1) Fuser Unit: 1-1) The fuser roller and the back-up roller is stained. (Print immediately after the inner jam occurred.) 1-2) Fusing off-set error occurred.
Page 339 I-22 White Print Phenomenon A blank page (no print at all) is output or a specific color is missing (not printed) as shown in print sample (22) of Fig.8-2. Main Causes 1) The laser beam path is shielded by the paper. 2) The toner cartridge is not sufficiently pressed in.
Page 340 I-23 Insufficient Fusing Phenomenon Printed image is partially missing as shown in print sample (23) of Fig.8-2. This proves that the fusing is insufficient. Main Causes 1) The fuser tension-release lever is open. The shipping pieces are not removed. 2) Wrong selection of print media (label or envelope, etc.) at the Host (driver) side. 3) Recommended paper is not being used.
Page 341 I-24 Uneven Density (Right & Left) Phenomenon The optical density is different between the right and left side of the printed image. Main Causes 1) The amount of toner in the toner cartridge PU is short. 2) The retract operation of the toner cartridge PU is not properly done. 3) The belt of the toner cartridge PU is deformed.
Page 342 I-25 Horizontal white line Phenomenon White line appears in the horizontal direction, as shown in print sample (25) of Fig.8-2. Main Causes 1) There is a crack at the end of the OPC belt. Crack at the end OPC Belt Charge brush ...
Page 343: Appendix A
APPENDIX A SERIAL NO. DESCRIPTIONS The descriptions as below show how to read labels on each place. < ID for production month of Printer > January September February June October March July November April August December < ID for production month of other parts than the printer > January September February...
Page 344 Toner Cartridge [Label 1] [Label 2] P 1 2 4 – C 5 BR 2 2 1 2 4 X X X X - C 5 Color YEAR (Toner) Color MONTH (Cartridge) DATE Revision No. (Cartridge) DATE (Cartridge) MONTH Factory Use (Toner) MONTH (Cartridge) <Location>...
Page 345 Fusing Unit XXXV 7 1 2 3 A REV.(-, A - Z) DATE MONTH YEAR VOLTAGE (100V, 120V, 240V) <Location> Scanner Unit 7 1 2 3 A REV.(-, A - Z) DATE MONTH YEAR <Location>...
Page 346 Transfer Unit X X X X X X - 7 1 2 3 DATE MONTH YEAR SERIAL NO. <Location>...
Page 347: Diameter / Circumference Of Rollers
DIAMETER / CIRCUMFERENCE OF ROLLERS The diameter or circumference of each roller is listed below; Parts Name Diameter (Circumference) OPC Belt (380 mm) φ 18 mm (56.52 mm) Developer Roller φ 20 mm (62.80 mm) Transfer Roller φ 40 mm (125.60 mm) Paper Pick-up Roller φ...
Page 348: Shelf Life Of Each Consumable
SHELF LIFE OF EACH CONSUMABLE Each consumable follows has its own shelf life. Shelf life varies whether the package of consumable is unpacked or not. Consumable Before unpacking *1 After unpacking *2 Toner cartridge (all colors) 3 years 1 year OPC belt cartridge 3 years 1 year...
Page 349: Consumables Replacement
CONSUMABLES REPLACEMENT Each consumable follows should be replaced according its own life. Toner Cartridge Life: K = 10,000 pages, CYM = 6,600 pages Condition: Above figures are based on 5% coverage. Life is detected by the toner empty sensor. Note: Life of the starter toner cartridge is half of the above figures.
Page 350 <40,020> 3) Add 20 pages Add figure of Figure from <Next care information 32> <Total pages 34> Modified by the addtional life deleted figure <40,000> <40,000> 1) No change This figure is actual <39,990> 2) 10 pages next care time 1) Print 10 pages 2) Print 10 pages This difference is the actual...
Page 351: Re-Packing Instructions
RE-PACKING INSTRUCTIONS PRECAUTION When re-packing the printer before shipping, be sure to follow the steps and cautions below. Failure to do so will cause toner or oil spill in the printer and severe damage to the printer. 1) Turn off the printer power switch, and then unplug the printer.
Page 352 5) Repack the toner cartridges into the box. 6) Remove the waste toner pack from the holder at the lower right hand side of the printer. Be careful not to spill the toner. 7) Take the cap off the new waste toner pack, and put the cap on the used waste toner pack.
Page 353: Hidden Function Menu
HIDDEN FUNCTION MENU Professional Menu The professional menu is open to users as per request to customize the printer functions mainly. To enter the professional menu, press the Go and Set buttons together. The details for each menu are described as follows; TRAY SETTING TRAY PRIORITY ----- T1>T2(>T3), (T3>)T2>T1 Specifies the priority of the paper source when selecting ‘Auto’...
Page 354 SAVE SETTINGS SAVE SETTING1 Saves the current printer setting to the user 1. SAVE FONT (Only when selecting the LaserJet emulation.) PRIMARY FONT Saves the fonts to be currently registered as the primary font into the storage device (compact flash card, hard disk). FONT ID = #### SECONDARY FONT Saves the fonts to be currently registered as the secondary font into the storage...
Page 355 SPOOL PRINT Specifies the collated printing when implementing reprint (secure print, proof print, public print). COLLATE = ON* COLLATE = OFF TRAYCOMMAND MODE Makes the command to select the paper source compatible with HP LaserJet 3. TRAY COM. = NORM * HP LaserJet 4 command TRAY COM.
Page 356 (The print speed is decreased.) DLFNT Bd / It Brother has an original function such that the printer creates the bold font when receiving the command of the bold font which the printer does not have. If the download font is selected by ID, however, the bold font which has been specified before can remain in the printer so that the download font is printed in bold.
Page 357 OEM FONT SELECT The special character set is necessary when the printer is supplied to the European countries. For the HL-1260 printer, the special character set is stored into the program ROM additionally. Since the font number is moved due to the addition, the character set is disabled for the normal model.
Page 358 The priority in each setting is as follows; < When the printer resolution is 600dpi > 3B PRIO = LOW 3B PRIO = HIGH 1. DOWNLOAD 600 1. DOWNLOAD 600 2. DOWNLOAD SCALABLE 2. DOWNLOAD 300 3. CARD 600 3. DOWNLOAD SCALABLE 4.
Page 359 PAPER&TRAY SIZE Specifies the default paper size. DEF PAPER =LT The default paper size is letter for the US and Canada models. DEF PAPER =A4 The default paper size is A4 for the other models. PARALLEL MENU Changes the signal timing of the Centronics interface PARALLEL TIMING CDCC PSW = L The BUSY signal gets high when the STROBE signal...
Page 360 APPLETALK AT/PS Specifies that the emulation is switched to the PS mode forcedly with AppleTalk. APPLE TALK = PS* Switches the emulation to the PS mode with AppleTalk. APPLE TALK = AUTO Uses the auto emulation function with AppleTalk. PS BINARY SELECT Specifies that the data from the parallel interface is handled as the binary data.
Page 361 PROTECT OFF MODE Specifies the performance of the page protection function. PRO.OFF = AUTO* Protects the data spuriously even when the page protection is turned off. (Countermeasure for the memory full or print overrun error.) PRO.OFF = NORMAL Specification up to the 4 mask ROM.
Page 362 JOB TIMEOUT SEL Specifies the setting of the job timeout. Though the job timeout has been set to 5 minutes in the PJL emulation since the HL- 1260 printer, the setting to disable the timeout is added due to the user’s request. TIME OUT = ON* Enables the job timeout.
Page 363 NET HEAP SIZE HeapSize = xxxxK* (The unit is Kbyte) Specifies the size of heap area to use with BR-Net. In HL-2700, the minimum size is 1100K and the maximum is 4860K. To get the heap area size: @PJL INFO HEAPSIZE To specify the heap area size: @PJL DEFAULT NETHEAPLEVEL = 1 ~ 15 PS FONT CACHE...
Page 364 TMA Calibration timing Calibration in Calibration in Print End Sequence Warming-UP from Power ON (4) Repeat Mode Page or Minute Page or Minute Page or Minute Page or Minute Available Available Available Available Available Available Available Available A-22...
Page 365: Reset Parts Life
Reset Parts Life The Reset parts life menu is implemented when the service personnel replaces the periodic maintenance parts. For the parts to be replaced easily, however, it is assumed that the user replaces them by him/herself. Therefore the reset parts life menu is distinguished from the service menu described in the next section, ‘4.
Page 366: Service Menu
Service Menu The service menu provides the printer information for the service personnel. (The following descriptions are not open to other than the service personnel.) To enter the service menu, press the + and Set buttons in this order while holding down the Go button.
Page 367 PRINT PAGES Number of printing pages depending on the paper size. A4 PAGE The number of printing pages of the A4 size. LETTER PAGE The number of printing pages of the letter size LEGAL PAGE The number of printing pages of the legal size B5 PAGE The number of printing pages of the ISO B5 size JISB5 PAGE...
Page 368 --SERVICE MENU-- RESET COUNT COVERAGE Clears the average coverage of the cyan, magenta, yellow and black toner. CCLEAR ERROR HIST Clears error history. -- SERVICE MENU -- NV-RAM DEBUG NV-RAM HEX PRINT Prints the NVRAM HEX dump. -- SERVICE MENU -- PPDS SUBSET Supports PPDS subset command with FX emulation.
Page 369: To Install The Printer Correctly
TO INSTALL THE PRINTER CORRECTLY Please read the installation steps described below carefully. If the printer is not installed correctly, image failures may occur or the life expectancy of the OPC belt cartridge may be shortened. Turn ON the power switch of the printer. After the printer has initialized, open the front cover 2 and then the top cover ASSY 2 of the printer and pull up the OPC belt cartridge from the printer.
Page 370 If the gap is NOT in the range of 5 ± 2 mm, check the following items; Note: If the printer is inclined at 1° as shown in the figures below, the printer is approximately 9mm out of level from one side to the other. i) Is the printer inclined because the table the printer is installed on is unlevel? Level 1°...
Page 371 iv) Is there anything under the printer, or is there something stuck to the printer base? After checking these items, initialize the printer again (opening/closing the top cover automatically initializes the OPC belt cartridge), and measure the gap on the OPC belt cartridge again.
Page 372 ii) When the gap is less than 3 mm; (the OPC belt has moved to the left.) Place something 1 cm thick such as a book under the left hand side of the printer as shown in the figure on the right.
Page 373 HOW TO REWRITE HL-2700CN FLASH ROM Object parts: MAIN PCB ASSY, HL2700CN Preparation tool *PC (Windows 98 or later) Create the folder “2700” in C drive. *1 HL-2700CN printer *1 parallel cable *BRUSBSN.EXE *FILEDG32.EXE Download “FILEDG32.EXE” and “BRUSBSN.EXE” from Utility DB, then copy it to “2700”...
Page 374 On the Model menu, click Printer 2. In Port, make sure that the LPT1: is selected. In the Serial No = box, type the 9-digit serial number (e.g. G01012345) printed on the nameplate labeled to the back of the machine as an ID code. Then press the OK button.
Page 375 Ex) LZ0145_A.BIN = Main firmware of HL-2700CN (Version A) Download and extract the necessary firmware from “ROM/Firmware DB”, then copy it to the “2700” folder created in C drive. (The extracted file name: HL-2700CN) (1) Insert the CompactFlash card to your computer.
Page 376 (7) Turn the printer on. The printer automatically moves to the rewriting mode and starts rewriting. While rewriting the firmware, LCD blacks out and “DATA LED” blinks. Be sure NOT to take out the CompactFlash card, or turn the printer off until it reaches to the condition of step (9).
Page 377: Nvram Backup
NVRAM BACKUP NVRAM includes following data: 1. USB serial number 2. Network setting 3. Maintenance counter (except life counter) 4. Panel setting (Paper size, power save mode, etc.) The following two methods can be used to copy the whole NVRAM with CompactFlash: Write in NVRAM to CompactFlash Write back NVRAM from CompactFlash 1.

Brother HL-2700CN Service Manual

Chapter Iproduct Outline

Chapter II Specifications

Chapter III Installation

Chapter IV Structure of System Components

Chapter V Control Panel Operation

Chapter VI Periodic Maintenance

Chapter VII Disassembly

Chapter VIII Troubleshooting

Appendix A

Quick Links

SERVICE MANUAL

Troubleshooting

Related Manuals for Brother HL-2700CN

Summary of Contents for Brother HL-2700CN

Table of Contents