Page 1: Laser Printer
Laser Printer SERVICE MANUAL MODEL: HL-5340D/5350DN/5350DNLT HL-5370DW/5370DWT/5380DN Read this manual thoroughly before maintenance work. Keep this manual in a convenient place for quick and easy reference at all times. December 2008 SM-PRN072 Confidential...
Page 2 TRADEMARKS The Brother logo is a registered trademark of Brother Industries, Ltd. Apple and Macintosh are trademarks of Apple Inc., registered in the United States and other countries. PCL is either a trademark or a registered trademark of Hewlett-Packard Company in the United States and other countries.
Page 3 (hereinafter referred to as "this machine" or "the printer"). This information is vital to the service technician to maintain the high printing quality and performance of the printer. This service manual covers the HL-5340D/5350DN/5350DNLT/5370DW/5370DWT/5380DN printers. This manual consists of the following chapters:...
Page 4 APPENDIX 1: FIRMWARE SWITCHES (WSW) APPENDIX 2: DELETION OF USER SETTING INFORMATION, etc. Provides instructions on how to delete user setting information, etc recorded in the machine. APPENDIX 3: SERIAL NUMBERING SYSTEM APPENDIX 4: SCREW CATALOGUE APPENDIX 5: REFERENCES APPENDIX 6: GLOSSARY Information in this manual is subject to change due to improvement or redesign of the product.
Page 5 REGULATION For Europe and Other countries Radio interference (220 to 240 volt model only) This machine follows EN55022 (CISPR Publication 22)/Class B. Before you use this product, make sure that you use one of the following interface cables. (1) A shielded parallel interface cable with twisted-pair conductors and that it is marked IEEE 1284 compliant.
Page 6 Internal laser radiation Maximum radiation power: 5 mW Wave length: 770 - 810 nm Laser class: Class 3B EU Directive 2002/96/EC and EN50419 (European Union only) This equipment is marked with the above recycling symbol. It means that at the end of the life of the equipment you must dispose of it separately at an appropriate collection point and not place it in the normal domestic unsorted waste stream.
Page 7 Important A shielded interface cable should be used to ensure compliance with the limits for a Class B digital device. Changes or modifications not expressly approved by Brother Industries, Ltd. could void the user's authority to operate the equipment. Confidential...
Page 8 FDA regulations and must be attached to laser products marketed in the United States. MANUFACTURED: Brother Technology (Shenzhen) Ltd. NO6 Gold Garden Ind., Nanling Buji, Longgang, Shenzhen, China This product complies with FDA performance standards for laser products except for deviations pursuant to Laser Notice No.50, dated July 26, 2001.
Page 9: Safety Information
SAFETY INFORMATION Caution for Laser Product (WARNHINWEIS fur Laser drucker) CAUTION: When the machine during servicing is operated with the cover open, the regulations of VBG 93 and the performance instructions for VBG 93 are valid. CAUTION: In case of any trouble with the laser unit, replace the laser unit itself. To prevent direct exposure to the laser beam, do not try to open the enclosure of the laser unit.
Page 10 Definitions of Warnings, Cautions and Notes The following conventions are used in this service manual: Mark Contents Warnings tell you what to do to prevent possible personal injury. Electrical Hazard icons alert you to a possible electrical shock. Hot Surface icons warn you not to touch machine parts that are hot. Cautions specify procedures you must follow or avoid to prevent possible damage to the machine or other objects.
Page 11 WARNING If you analyze malfunctions with the power plug inserted into the power outlet, special caution should be exercised even if the power switch is OFF because it is a single pole switch. WARNING DO NOT use flammable substances, any type of spray or any organic solvent/liquids contains alcohol or ammonia to clean the inside or outside of the machine.
Page 12 CHAPTER SPECIFICATIONS...
Page 13: Table Of Contents
CHAPTER 1 SPECIFICATIONS This chapter lists the specifications of each model, which enables you to make a comparison of different models. CONTENTS 1. COMPONENTS ......................1-1 2. SPECIFICATIONS LIST ....................1-2 2.1 Printing ........................1-2 2.2 Functions ....................... 1-3 2.3 Electronics and Mechanics..................1-5 2.4 Network Connectivity.....................
Page 14: Components
1. COMPONENTS The equipment consists of the following major components: Support Flap 1 Support Flap 1 Top Cover Top Cover Panel PCB Back Cover LCD Panel PCB Side Cover R Outer Chute ASSY Laser Unit Toner LED PCB ASSY Rear Chute ASSY Frame Unit Fuser Unit Process Cover ASSY...
Page 15: Specifications List
2. SPECIFICATIONS LIST Printing HL-5350DN HL-5370DW Model HL-5340D HL-5380DN HL-5350DNLT HL-5370DWT Print method Electrophotography by semiconductor laser beam scanning Laser Method: 1 polygon motor, 1 laser beam Wavelength: 770 nm - 810 nm Output: 5 mW (Max) Laser class: Class3 B Resolution ®...
Page 16: Functions
BR-Script 3 (PPD file for Mac OS X 10.3.9 or greater) Linux * Linux printer driver for CUPS printing system (x86, x64 environment) Linux printer driver for LPD/LPRng printing system (x86, x64 environment) Utility Driver Deployment Wizard Download from http://solutions.brother.com. Confidential...
Page 17 <System requirements> Available Recom- Computer Platform & Minimum Hard Processor Speed mended Operating System Version Disk Space ® ® ® Windows Windows Intel Pentium 4 or 512MB 50MB ® Vista equivalent 64-bit supported CPU Windows AMD Opteron™ 256MB 512MB 50MB ®...
Page 18: Electronics And Mechanics
Electronics and Mechanics Model 5340D 5350DN 5350DNLT 5370DW 5370DWT 5380DN Power Printing Average510 W at 25 °C (77 °F) consumption Standby Average 85 W at 25 °C (77 °F) Sleep Average 8 Average 9 W at 25 °C (77 °F) Average W at 25 °C 12 W at 25...
Page 19: Network Connectivity
Management utility BRAdmin Professional 3 for Windows (Brother original Windows utility for printer and server management) Web BRAdmin for Windows (Server based management utility / Windows IIs (4.0/5.0) mode only) Web Based Management (Printer and print server management throuth web browser) recommend Microsoft Internet Explorer 6.0 (or greater), Fire fox 1.0 (or...
Page 20: Wireless Network
Data rate 802.11 b 11/5.5/2/1 Mbps 802.11 g 54/48/36/24/18/12/11/9/6 Mbps A wireless network connection is supported only between the Brother printer and an ® ® access point for PC's running Windows Server 2003 x64 Edition and Windows Professional x64 Edition.
Page 21: Service Information
Service Information These are key service information to maintain the product. Machine life: 200,000 pages MTBF (Meantime between failure): Up to 4000 hours MTTR (Meantime to repair): Average 0.5 hours Monthly volume: 30,000 pages Periodical replacement parts: Parts Approximate Life (pages) Fuser unit 100,000 Laser unit...
Page 22: Paper
Paper 2.6.1 Paper handling Model 5340D 5350DN 5350DNLT 5370DW 5370DWT 5380DN Paper Standard 250 sheets Input tray sheets sheets sheets sheets (250 (250 sheets x 2 sheets x 2 trays) trays) Multi- 50 sheets purpose tray Option 250 sheets x 2 (Max.
Page 23: Media Specifications
2.6.2 Media specifications HL-5350DN HL-5370DW Model HL-5340D HL-5380DN HL-5350DNLT HL-5370DWT Media type Paper tray Plain paper, Bond paper, Recycled paper, (Standard) Transparencies , Thin paper Multi-purpose Plain paper, Thick paper, Bond paper, Recycled paper, tray Envelope , Label, Transparencies , Thin paper...
Page 24 <Media type> Choose the Tray 1/2/3 MP Tray media type from the printer driver Plain paper Plain paper 75 to 105 g/m (20 to 28 lb) Recycled paper Recycled paper Bond paper Bond paper Rough paper- 60 to105 g/m 60 to161 g/m 60 to 161 g/m (16 to 28 lb.) (16 to 43 lb.)
Page 25: Printable Area
Printable Area ! PCL emulation When using PCL emulation, the edges of the paper that cannot be printed on are shown below. Portrait Physical page Printable area Logical page Physical page length Maximum logical page length Distance from edge of physical page to edge of logical page Note : •...
Page 26 The table below shows the printable areas when printing on Portrait for each paper size. Size Letter 215.9mm 279.4mm 203.2mm 279.4mm 6.3mm 4.2mm 8.5" 11.0" 8.0" 11.0" 0.2" 0.16" (2,550dots) (3,300dots) (2,400dots) (3,300dots) (75dots) (50dots) Legal 215.9mm 355.6mm 203.2mm 355.6mm 4.2mm ↑...
Page 27 Size DL Long 220.0mm 110.0mm 207.0mm 110.0mm 6.26mm 4.2mm Edge 8.66" 4.33" 8.17" 4.33" 0.25" 0.16" (2,598dots) (1,299dots) (2,450dots) (1,299dots) (74dots) (50dots) 76.2mm 127.0mm 63.5mm 127.0mm 6.35mm 4.2mm 3.00" 5.00" 2.50" 5.00" 0.25" 0.16" (900dots) (1,500dots) (750dots) (1,500dots) (75dots) (50dots) Note : •...
Page 28 Landscape Physical page Printable area Logical page Physical page length Maximum logical page length Distance from edge of physical page to edge of logical page Note : • "Logical page" shows the printable area for a PCL driver. • "Printable area" shows mechanical printable area of the machine. •...
Page 29 The table below shows the printable areas when printing on Landscape for each paper size. Size Letter 279.4mm 215.9mm 269.3mm 215.9mm 5.0mm 4.2mm 11.0" 8.5" 10.6" 8.5" 0.2" 0.16" (3,300dots) (2,550dots) (3,180dots) (2,550dots) (60dots) (50dots) Legal 355.6mm 215.9mm 345.5mm 215.9mm 4.2mm ↑...
Page 30 Size DL Long 110mm 220mm 102mm 220mm 4.0mm 4.2mm Edge 4.33" 8.66" 4.00" 8.66" 0.16" 0.16" (1,299dots) (2,598dots) (1,199dots) (2,598dots) (50dots) (50dots) 127mm 76.2mm 116.8mm 76.2mm 5.0mm 4.2mm 5.00" 3.00" 4.60" 3.00" 0.20" 0.16" (1,500dots) (900dots) (1,380dots) (900dots) (60dots) (50dots) Note : •...
Page 31: Print Speeds With Various Settings
Print Speeds with Various Settings Print speed is up to 30 ppm for A4 size and 32ppm for Letter size when loading A4 or Letter size paper from the paper tray in the plain paper mode. Actual print speed varies depending on the media type or paper size as shown in the tables below;...
Page 32: Theory Of Operation
CHAPTER THEORY OF OPERATION Confidential...
Page 33 CHAPTER 2 THEORY OF OPERATION This chapter gives an overview of the scanning and printing mechanisms as well as the sensors, actuators, and control electronics. It aids in understanding the basic principles of operation as well as locating defects for troubleshooting CONTENTS 1.
Page 34: Overall
1. OVERALL General Block Diagram Fig. 2-1 shows a general block diagram. Control system Extended RAM Wireless LAN SODIMM 144pin (Wireless LAN model) 16MB: Netwark model 32MB: No Netwark model Ethernet 10/100 Base TX (Ethernet model) Video control block Interface block Parallel Engine control block Operation block...
Page 35: Electronics
2. ELECTRONICS General Block Diagram (Main fan) Low-voltage power supply Main fan Toner High-voltage sensor PCB power supply (Light Rear relay Power supply fan reception) Fuser thermistor Regist front sensor Paper eject Sensor PCB DX unit sensor PCB sensor (PE+PEDGE) Regist rear sensor MP sensor PCB...
Page 36: Mechanics
3. MECHANICS Cross-section Drawing Paper stack lever Transfer roller Laser unit Corona wire Exposure drum Develop roller Eject roller ASSY 2 Back cover Heat roller MP tray Eject roller ASSY 1 Regist roller Separation roller MP Separation pad MP Paper eject actuator Paper feed roller MP Regist actuator rear Pressure roller...
Page 37: Cross-Section Drawing
Cross-section Drawing The following figure shows the paper feeding paths. MP path DX path Paper tray path LT path Fig. 2-4 Confidential...
Page 38: Plate-Up Function Of The Paper Tray
3.2.1 Plate-up Function of the Paper Tray The plate ASSY in the paper tray is pushed up with the motor drive and not with the spring in order to maintain the constant pressure to the feed roller and to give the paper feeding performance.
Page 39: Paper Supply
3.2.2 Paper supply The feed roller picks up a few sheets or one sheet of paper from the paper tray every time it is rotated and feeds it to the separation roller. Pinch roller Regist roller Regist actuator rear Feed roller Regist actuator front Pressure roller PE actuator...
Page 40: Paper Registration
3.2.3 Paper registration After the paper top position is detected by the regist actuator front, the paper, separated into individual sheets by the separation roller, is fed further for a specified time, and the paper top position reaches the regist roller so that the paper skew is adjusted. Then, the regist solenoid is turned on, the regist roller starts turning, and the paper is fed to the transfer roller in the drum/toner ASSY.
Page 41: Paper Eject
3.2.4 Paper eject After the printing image on the exposure drum is transferred onto the paper, the paper is fed to the fuser unit to fix unfixed toner onto the paper by the heat roller and the pressure roller in the fuser unit.
Page 42: Duplex Printing
3.2.5 Duplex printing After the paper exits from the eject roller ASSY 2 with the front of sheet printed, the eject roller ASSY 2 rotates conversely and feeds the paper to the DX unit, where the paper skew is adjusted. Afterwards, the paper is ejected from the DX unit to the path through the regist roller and the transfer roller to the transfer block in the drum unit again for process of printing on the back of sheet.
Page 43: Paper Feeding From The Mp Tray
3.2.6 Paper feeding from the MP tray The separation roller MP is connected with the feed roller through the gear in the MP roller holder ASSY. When the separation roller is driven, therefore, the feed roller is also driven. At this time, the recording paper is drawn out of the MP tray by rotation of the paper feed roller MP contacted with the recording paper.
Page 44: Toner Cartridge
Toner Cartridge 3.3.1 Methods for Detecting and Counting Toner Life When the machine detects the toner life end, "Replace Toner" is displayed in the state of LCD model and the red Status LED lights on, and the Toner LED lights on at the same time. in the state of LED model.
Page 45: Cartridge Life
(high yield toner) A4 or Letter size single-sided pages at normal duty (ISO/IEC19752). In the case of low-duty printing, if the number of printed pages are reached the cartridge life, "Replace Toner" is indicated by lighting Toner LED (HL-5340D/5350DN/5350DNLT/ 5370DW/5370DWT) or "Replace Toner" message appears on the LCD panel (HL-5380DN) before the toner runs out because the developer roller surface or other toner sealing is worn out due to a rotation of the rollers.
Page 46: New Toner Detection
3.3.3 New toner detection (1) The main motor will drive gear (4) through the interconnection of other gears. (2) When gear (4) is rotated, rib A on that gear will push against the new toner actuator; the new toner sensor will detect the actuator motion, and the machine detects that a new toner cartridge has been installed.
Page 47 When the new toner detection switch detects that the toner cartridge is replaced with a new one, the developing bias voltage is initialized at the same time. The toner used for the printer has a property that print density is light first and gradually darker in the course of usage.
Page 48 <When a toner cartridge in use is inserted after "Replace Toner" is displayed by toner sensor detection > A count value before changes is continuously indicated as a rotation rate of the develop roller. Irrespective of the amount of toner, printing becomes disabled when the rotation rate reaches the upper limit.
Page 49: Print
Print 3.4.1 Basic Principle The printing process consists broadly of 5 processes: electrification, exposure, development, transfer and fusing. 1. Charging: The surface of an exposure drum is electrically charged. 2. Exposure: A printed image is formed on the surface of the drum by applying laser beam. 3.
Page 50: Print Process
3.4.2 Print Process (1) Charging The flow of the ion charge is controlled by constant voltage of the grid 850 V to ensure it is distributed evenly on the drum surface. In order to coat toner on the exposure drum, the drum needs to be evenly electrified.
Page 51 (2) Exposure The laser beam radiated from a laser diode inside the laser unit is concentrated into a constant width by a slit in the CO lens cell and then reflected by a polygon mirror rotating at high speed. The evenly charged exposure drum is irradiated with reflected light and exposed. Surface potential is lowered by such exposure and a printed image is formed.
Page 52 (3) Development Toner is attracted to a printed-image area on the exposure drum where surface potential is lowered due to exposure. By controlling developing bias voltage supplied to the develop roller, the amount of toner taken to the drum is adjusted to keep printing density constant. Charging Laser beam 400 V to 275 V...
Page 53 (4) Transfer By applying a minus charge to the transfer roller, the toner adhered to the exposure drum is transferred to paper. Supply roller Toner cartridge Develop roller Exposure drum Toner Transfer roller Fig. 2-19 Memo : • Control of transfer bias The transfer bias applied in the transfer roller is adjusted according to types and sizes of paper so as to keep excellent image quality.
Page 54 (5) Fusing The toner transferred on paper passes between the heat roller and the pressure roller in the fuser unit, being fused by heat and pressure. The thermistor detects surface temperature of the heat roller and turns ON/OFF the halogen heater lamp. The temperature is kept constant. Fuser unit Heat roller Halogen heater...
Page 55: Sensors Position
Sensors position Sensor name Type Located on Function Detect the paper top Regist front sensor Photo sensor High-voltage PS PCB position or absence of paper. Control the first print Regist rear sensor Photo sensor High-voltage PS PCB position on the paper. Detect whether the paper Paper eject sensor Photo sensor...
Page 56 Chute Front cover sensor Frame R Toner LED PCB (Light emission) Frame L Regist frame Paper feed Paper eject sensor frame (Relay rear PCB) MP PE sensor PE EG sensor DX tray sensor New toner sensor PCB PE sensor (Relay front PCB) Toner sensor PCB Edge sensor (Light reception)
Page 57: Error Indication And Troubleshooting
CHAPTER ERROR INDICATION AND TROUBLESHOOTING Confidential...
Page 58 CHAPTER 3 ERROR INDICATION AND TROUBLESHOOTING This chapter details error messages and codes that the incorporated self-diagnostic functions display if any error or malfunction occurs. If any error message appears, refer to this chapter to find which components should be checked or replaced. The latter half of this chapter provides sample problems that could occur in the main sections of the machine and related troubleshooting procedures.
Page 59: Introduction
1. INTRODUCTION Troubleshooting is the countermeasure procedures that the service personnel should follow if an error or malfunction occurs with the machine. It is impossible to anticipate all of the possible troubles which may occur in future and determine the troubleshooting procedures, so this chapter covers some sample troubles.
Page 60: Part Names
Part names Support Flap 1 Support Flap 1 Top Cover Top Cover Panel PCB Back Cover LCD Panel PCB Side Cover R Outer Chute ASSY Laser Unit Toner LED PCB ASSY Rear Chute ASSY Frame Unit Fuser Unit Process Cover ASSY Main PCB MP Tray Cover ASSY Access Cover...
Page 61: Initial Check
Initial Check Check the following items before attempting to repair the machine. Operating Environment (1) Put your machine on a flat, stable surface such as a desk that is free of vibration and shocks. (2) Use the machine in a well-ventilated room; use the machine within the following ranges of temperature and humidity: temperature between 10°C and 32.5°C (50°F to 90.5°F), and the relative humidity is maintained between 20% and 80%.
Page 62 (2) Cleaning Use a soft dry cloth. warning DO NOT use flammable substances such as alcohol, benzine, thinner or any type of spray to clean the inside or outside of the machine. Doing this may cause a fire or electrical shock. Confidential...
Page 63: Distinguish Error Cause
2. DISTINGUISH ERROR CAUSE LED indication (LED model) 2.1.1 LED indication at Operator Calls Distinguish the contents of message by LED indication in the control panel. See the reference page and take the corrective action described for each indication to correct it. when the red Error LED is ON or blinking to indicate it, the machine automatically recovers from most errors.
Page 64 Error clearance Type of error by pressing the Refer to: [Go] button Toner life end 3-25 Back Cover Toner cartridge is not set 3-22 Cannot detect toner Toner Drum Paper Status Status : Red light ON Mismatch paper size 3-24 Back Cover Paper is jammed in specified tray...
Page 65 Error clearance Type of error by pressing the Refer to: [Go] button Drum error 3-17 Back Cover Toner Drum Paper Status Status : Red light ON Toner low 3-25 Back Cover Toner Drum Paper Status Status : Green light ON The Toner LED will turn on for 2 seconds and off for...
Page 66 Error clearance Type of error by pressing the Refer to: [Go] button Drum life end 3-23 Back Cover Toner Drum Paper Status Status : Green light ON No paper in specified tray 3-22 Back Cover Toner Drum Paper Status Status : Red light ON Confidential...
Page 67: Led Indication At Service Calls
2.1.2 LED indication at Service Calls If service calls occur, all four LEDs blink on and off to notice it. And then when press the [Go] button, distinguish a fault from the specific combination of ON/OFF and status color of the LED.
Page 68 Press the [Go] button Press the [Job and [Job Cancel] Cancel] button twice Refer Type of error button once at the while pressing the same time [Go] button Passed for 12 3-26 Back Back Back seconds till Cover Cover Cover became 60°C from Toner Toner...
Page 69 Press the [Go] button Press the [Job and [Job Cancel] Cancel] button twice Refer Type of error button once at the while pressing the same time [Go] button Error S01 3-25 Back Back Back Error S06 Cover Cover Cover Error S07 Toner Toner Toner...
Page 70 Press the [Go] button Press the [Job and [Job Cancel] Cancel] button twice Refer Type of error button once at the while pressing the same time [Go] button Laser Beam 3-26 Back Back Back detection failure Cover Cover Cover Toner Toner Toner Drum...
Page 71 Press the [Go] button Press the [Job and [Job Cancel] Cancel] button twice Refer Type of error button once at the while pressing the same time [Go] button Fan malfunction 3-27 Back Back Cover Cover Toner Toner Drum Drum Paper Paper Status Status...
Page 72: Error Message (Lcd Model)
Error Message (LCD model) 2.2.1 Operator calls An "Operator call" which the printer indicates on the LCD display is user recoverable. Identify the error from the table below and take the corrective action described for each indication to correct it. The printer automatically recovers from most errors. If not, the error is cleared by holding down the [Go] button on the control panel.
Page 73: Error Indication At Service Calls
Mismatch between specified paper size from the SIZE MISMATCH 3-24 driver and setting paper in the tray. STORAGE FULL Memory full. 3-24 TOO MANY TRAYS Option tray is installed more than three. 3-24 REPLACE TONER Toner life end is detected. Developer count full. 3-25 TONER LOW Low on toner.
Page 74: Error Cause And Remedy
Error Cause and Remedy Memo : • The following troubleshooting sections contain both the actions which end users should take or check and the ones which service technicians should perform. BUFFER ERROR Mistake the Interface settings. Step Cause Remedy Main PCB ASSY failure Replace the main PCB ASSY.
Page 75 DRUM END SOON The drum unit reached 90% of the time for replacement. <User Check> - Replace the drum unit with a new one. - Reset the counter. (Refer to 2.2 Reset Parts Life Menu in Chapter DRUM ERROR Dirt on drum unit. <User Check>...
Page 76 Electrodes location of the toner/drum unit Toner/Drum Unit (3) Charge (4) Developer roller (5) Grid (7) Cleaner (1) Exposure drum (6) Transfer roller Fig. 3-2 Electrodes location of the machine Grid Cleaner Charge Developer roller Exposure drum Transfer roller Fig. 3-3 <How to clean the electrodes>...
Page 77 DUPLEX DISABLED The back cover is open, or the DX unit is not set. <User Check> - Close the back cover. - Set the DX unit. Step Cause Remedy Harness connection failure of back Check the sensor performance following cover sensor the procedure in "Factory Inspection Mode"...
Page 78 FUSER COVER OPEN Fuser cover is opened. <User Check> - Check if the fuser cover is closed certainly. Step Cause Remedy Paper eject actuator catching on Correct catching of the paper eject some position actuator. Harness connection failure of relay Check the harness connection of the relay rear PCB ASSY rear PCB ASSY, and reconnect it.
Page 79 • JAM INSIDE/JAM REAR Paper jam inside the machine. <User Check> - Check if the paper is jammed. If jammed, remove it. - Check if the fuser cover is closed certainly. Step Cause Remedy Harness connection failure of Check the harness connections of the High-Voltage PS PCB ASSY or High-Voltage PS PCB ASSY or relay rear relay rear PCB ASSY...
Page 80 MEMORY FULL Memory full. <User Check> - Press the [Go] button, then print the stored data. - Reduce the data capacity or reduce the print resolution. NO PAPER XXX No paper in specified tray, or specified tray is not set. <User Check>...
Page 81 NO TRAY XX If feed from the T2/T3, the T1/T2 in the paper path is not installed. <User Check> - Install the T1 or T2. Step Cause Remedy Harness connection failure of PE Check the sensor performance following EG sensor ASSY of T1 or T2 the procedure in "Factory Inspection Mode"...
Page 82 REPLACE PF KIT1 (2, 3, MP) PF kit 1 (2, 3, MP) is the time for replacement. Step Cause Remedy PF kit 1 (2, 3, MP) is the time for Replace the PF kit 1 (2, 3, MP) and reset replacement the counter.(Refer to "2.2 Reset Parts Life...
Page 83 REPLACE TONER Toner life end is detected. Developer count full. <User Check> - Replace the toner cartridge. Step Cause Remedy Harness connection failure of Check the sensor performance following toner sensor PCB ASSY the procedure in "Factory Inspection Mode" in 1.3 Service Mode in Chapter If any problem occurs, check the harness connection of the toner sensor PCB ASSY, then reconnect it.
Page 84 FUSER UNITFAILURE Step Cause Remedy Harness connection failure Check the harness connection between between fuser unit connector and fuser unit connector and eject sensor PCB eject sensor PCB ASSY ASSY. Fuser unit failure Replace fuser unit. Low-voltage power supply PCB Replace the PS PCB unit.
Page 85 HIGH-VOLTAGE POWER SUPPLY PCB FAILURE Step Cause Remedy High-voltage power supply PCB Clean the electrodes on the High-voltage ASSY harness electrode dirty power supply PCB ASSY harness. High-voltage power supply PCB Check the harness connection between the ASSY harness connection failure high-voltage power supply PCB and main PCB.
Page 86 NEW TONER IS NOT DETECTED Step Cause Remedy New toner actuator catching on Re-assemble the new toner actuator. some position New toner actuator spring loose Re-assemble the new toner actuator spring. New toner sensor PCB ASSY Check the sensor performance following harness connection failure the procedure in "Factory Inspection Mode"...
Page 87: Paper Feeding Problems
3. PAPER FEEDING PROBLEMS Problems related to paper feeding are end user recoverable if following the User Check items. If the same problem occurs again, follow each procedure in the order of the number described in the Step column in the tables below. No Feeding Step Cause...
Page 88: Paper Jam
Paper Jam Paper jam in the paper tray and front cover Step Cause Check Result Remedy Registration front Does the registration front Re-assemble the actuator/edge actuator/edge actuator registration front actuator/ actuator catching move smoothly? edge actuator. on some position Registration front Does the registration front Replace the registration sensor PCB...
Page 89 Paper jam in the tray 2/tray 3 Step Cause Check Result Remedy LT edge actuator Does the LT edge Re-assemble the LT edge catching on some actuator move smoothly? actuator. position LT sensor PCB Is the problem solved Replace the LT sensor ASSY failure after replacing the LT PCB ASSY.
Page 90: Dirt On Paper
Dirt on Paper <User Check> - Check if the paper is loaded into the paper tray correctly. - Turn over the stack of paper in the paper tray, or try rotating the paper 180° in the paper tray. Step Cause Check Result Remedy...
Page 91: Curl In The Paper
Curl in the paper The curl in the left figure. <User Check> - Change the paper. Step Cause Check Result Remedy Mismatch the Is the problem solved by Change the position of the setting the paper changing the position of anti-curl lever.
Page 92: Image Defect Troubleshooting
4. IMAGE DEFECT TROUBLESHOOTING Image Defect Examples Faulty registration Light Dark Poor fixing Completely blank Vertical streaks Dirt on the back of paper Image distortion All black Black vertical streaks Black horizontal White vertical White horizontal Faint print in a light background stripes streaks streaks...
Page 93: Troubleshooting Image Defect
Troubleshooting Image Defect Image defect related problems are end user recoverable if following the User Check items. If the same problem occurs, follow each procedure in the order of the number described in the Step column in the tables below. Light <User Check>...
Page 94 <Location of the leser beam window> Fig. 3-6 Faulty registration <User Check> - Check that the appropriate media type is selected in the printer driver. Step Cause Check Result Remedy Registration rear Does the registration Re-assemble the actuator catching rear actuator move registration rear actuator.
Page 95 Poor fixing <User Check> - Replace the drum unit with a new one. - Replace the toner cartridge with a new one. Step Cause Check Result Remedy High pressure of Is the problem solved by Change the position of the pressure roller in changing the position of anti-curl lever.
Page 96 Completely blank <User Check> - Replace the drum unit with a new one. - Replace the toner cartridge with a new one. Step Cause Check Result Remedy Developing bias Are the electrodes on Clean both electrodes. voltage the drum unit and (Refer to Fig.
Page 97 All black Step Cause Check Result Remedy Corona wire Are the electrodes on Clean both electrodes. failure the drum unit and (Refer to Fig. 3-2, Fig. 3-3.) machine body dirty? Is the corona wire Replace the drum unit. damaged? Scanner harness Is the scanner harness Reconnect the scanner of the laser unit...
Page 98 Dirt on the back of paper <User Check> - This problem may disappear after printing approximately 10 pages of completely blank sheets. Step Cause Check Result Remedy Scratch and Dirt Is the pressure roller Print approximate 10 pages. on the fuser unit ASSY dirty? Is any other Replace the fuser unit.
Page 99 Black horizontal stripes <User Check> - Clean the inside of the machine and the corona wire in the drum unit. - Replace the drum unit with a new one. Step Cause Check Result Remedy Dirt on the Are the electrodes on Clean both electrodes.
Page 100 White vertical streaks <User Check> - Clean the scanner windows of the laser unit with a soft lint-free cloth. (Refer to Fig. 3-6.) - Replace the toner cartridge with a new one. - Check the machine’s environment. High temperature and high humidity conditions can cause this problem.
Page 101 Faint print <User Check> - Check that the machine is installed on a level surface. - Replace the toner cartridge with a new one. - Clean the scanner windows of the toner unit with a soft cloth. (Refer to Fig. 3-6.) - The drum unit may be damaged.
Page 102 <Clean the drum unit as follows> If you have print quality problems, clean the drum unit as follows: (1) Put the print sample in front of the drum unit, and find the exact position of the poor print. Fig. 3-8 (2) Turn the drum unit gear to the direction of the arrow of the figure by hand while looking at the surface of the exposure drum.
Page 103 Black spots <User Check> - Damp (wet) paper might be used. Try to change to freshly unpacked paper. - Toner may be empty. Replace the toner cartridge with a new one. - If the problem is not solved after printing a few pages, the drum unit may have glue from label stock on the exposure drum surface.
Page 104 Downward fogging of solid color <User Check> - Toner may be empty. Replace the toner cartridge with a new one. Step Cause Check Result Remedy Toner sensor Is the toner sensor Replace the toner sensor failur performed normally by PCB unit ASSY and the following the procedure toner LED PCB ASSY.
Page 105 Ghost <User Check> - Check the machine's environment, conditions such as high or low humidity may cause this situation to occur. - Check that the appropriate media type or size is selected in the printer driver. - Replace the drum unit with a new one. Step Cause Check...
Page 106 Hollow print by condensation <User Check> - Turn the power on and leave the machine for a few minutes. Step Cause Check Result Remedy Condensation of Is the problem solved Drum condensation drum unit by high after setting the drum countermeasure mode is humidity condensation...
Page 107: Software Setting Problems
Chapter Machine For Macintosh, has the Verify the product connection product ID been ID.Product ID: verified? HL-5340D: 0039* HL-5350DN: 003A* HL-5350DNLT: 003A* HL-5370DW: 003B* HL-5370DWT: 003B* HL-5380DN: 003C * Hexadecimal Main PCB failure Is the problem solved Replace the main PCB after replacing the main ASSY.
Page 108: Network Problems
6. NETWORK PROBLEMS <User Check> - Check the descriptions in the network user’s guide. - Try resetting the factory settings. Step Cause Check Result Remedy Wireless LAN Is the problem solved Replace the wireless LAN PCB failure after replacing the PCB ASSY.
Page 109: Periodic Maintenance
CHAPTER PERIODIC MAINTENANCE Confidential...
Page 110 CHAPTER 4 PERIODIC MAINTENANCE CONTENTS 1. PERIODIC MAINTENANCE PARTS................4-1 1.1 Periodical Replacement Parts ................4-2 1.2 Procedures to Replace Periodical Replacement Parts.......... 4-3 1.2.1 Fuser unit and laser unit................4-3 1.2.2 Paper feeding kit for tray 1, 2, 3 ............... 4-24 1.2.3 Paper feeding kit for MP tray..............
Page 111: Periodic Maintenance Parts
1. PERIODIC MAINTENANCE PARTS To avoid creating secondary problems by mishandling, follow the warnings below during maintenance work. WARNING • Always turn off the power switch and unplug the power cord from the power outlet before accessing any parts inside the machine. •...
Page 112: Periodical Replacement Parts
Periodical Replacement Parts Periodical replacement parts are the parts to be replaced periodically to maintain product quality. These parts would affect the product quality greatly if they lost their function even if they do not appear to be damaged or there is no change in their appearance. The periodical replacement parts listed below should be replaced at the service center referring to the service life.
Page 113: Procedures To Replace Periodical Replacement Parts
Procedures to Replace Periodical Replacement Parts 1.2.1 Fuser unit and laser unit <Uninstalling Procedure> Check that the following before entering the procedures. • Make sure that the AC cord is disconnected from the printer. • Make sure that the Drum/toner ASSY is removed. •...
Page 114 (3) Remove the Arms of the Back cover from the Pins. (4) Remove the Back cover. Back cover Fig. 4-2 (5) Hold the Knobs on the Rear chute ASSY and pull down this to your side. (6) Remove the Arms of the Rear chute ASSY from the Pins. (7) Remove the Rear chute ASSY.
Page 115 (8) Remove the pan B M4x20 Taptite screw. Release the Hooks in the order of 8a, 8b and 8c. Remove the FU harness cover 1. Taptite, pan B M4x20 Hook FU harness cover 1 Fig. 4-4 (9) Disconnect the connector of the Heater terminal while pressing the Hook of the connector of the Fuser unit.
Page 116 (10) Pull the FU harness cover 2 to the direction of 10a while pressing the Hook and pull out the FU harness cover 2 from the back of the printer. FU harness cover 2 Hook Fig. 4-6 (11) Disconnect the connectors of the Thermistor ASSY M and Thermistor ASSY S from the Relay rear PCB ASSY, and remove the harnesses of these thermistors.
Page 117 (12) Remove the pan B M4x20 Taptite screw to remove the Fuser unit. Taptite, pan B M4x20 Fuser unit Fig. 4-8 (13) Open the Front cover, remove the two bind B M4x12 Taptite screws, and then remove the Side cover L by releasing the Hooks in the order of 13a to 13d. Taptite, bind B M4x12 Hooks Side cover L...
Page 118 (14) Remove the four cup S M3x6 SR Taptite screws to remove the Shield cover and the FG harness. Taptite, cup S M3x6 SR Shield cover FG harness Taptite, cup S M3x6 SR Fig. 4-10 (15) Remove the two bind B M4x12 Taptite screws, and then remove the Side cover R by following the direction from 15a to 15d.
Page 119 (16) Disconnect the Connector of the Panel PCB. Top cover printed ASSY Panel PCB Connector Main PCB Fig. 4-12 (17) Remove the two bind B M4x12 Taptite screws from Top cover printed ASSY. (18) Release all Hooks of the Top cover printed ASSY and lift up the front side of the Top cover printed ASSY.
Page 120 (20) Disconnect the harness of the wireless PCB ASSY. (21) Slide the Sub duct to the direction of 20b while pressing the Hook to the direction of 20a and remove the Sub duct from the Air duct. Air duct Wireless PCB harness Hook <Back side>...
Page 121 (23) Remove the Pin of the Air duct from the frame. Slide the Air duct to the direction of 22b and remove the Air duct. Laser unit Hook Hook Hook Air duct Fig. 4-16 4-11 Confidential...
Page 122 (24) Remove the two Flat cable from the Main PCB. Note : • After disconnecting flat cable(s), check that each cable is not damaged at its end or short-circuited. (25) Remove the six cup S M3x6 Taptite screws. (26) Remove the Protective film from the Flat cable. (27) Pull out the two Flat cables from the Core.
Page 123 < Installing Procedure > (1) Secure the Laser unit with the six cup S M3x6 Taptite screws. (2) Put the Flat cable (LD harness connector) through the Core. (3) Put the Flat cable (Polygon motor connector) through the Core and Protective film. (Refer to "6.
Page 124 (5) Install the Air duct into the Laser unit. Laser unit Air duct Fig. 4-19 (6) Install the Filter into the Air duct. Air duct Filter Fig. 4-20 4-14 Confidential...
Page 125 (7) Install the Sub duct into the Air duct. (8) Connect the harness of the wireless PCB ASSY. Air duct Wireless PCB harness Hook <Back side> Sub duct Fig. 4-21 (9) Secure the Top cover printed ASSY with the two bind B M4x12 Taptite screws. Hooks Top cover printed ASSY Hook...
Page 126 (10) Connect the Connector of the Panel PCB. Top cover printed ASSY Panel PCB Connector Main PCB Fig. 4-23 (11) Catch the all Hooks and secure the Side cover R with the two bind B M4x12 Taptite screws. Taptite, bind B M4x12 Hook Side cover R Hook...
Page 127 (12) Secure the Shield cover and FG harness with the four cup S M3x6 SR Taptite screws. Taptite, cup S M3x6 SR Shield cover FG harness Taptite, cup S M3x6 SR Fig. 4-25 (13) Catch the all Hooks and secure the Side cover L with the two bind B M4x12 Taptite screws.
Page 128 CAUTION • DO NOT subject the fuser unit to strong physical shocks or vibrations. • DO NOT touch the rollers and the electrodes to prevent damage to the fuser unit In the following figures. • To prevent the deformation of the pressure roller, the fuser unit spare part is shipped with its pressure roller at low nip pressure.
Page 129 (14) Secure the Fuser unit with the pan B M4x20 Taptite screw. Taptite, pan B M4x20 Fuser unit Fig. 4-27 4-19 Confidential...
Page 130 (15) Connect the connectors of the Thermistor ASSY M and Thermistor ASSY S onto the Relay rear PCB ASSY. Hook Thermistor ASSY M Fuser unit Hook Relay rear PCB ASSY Thermistor ASSY S Relay rear PCB ASSY Fig. 4-28 (16) Install the FU harness cover 2. FU harness cover 2 Hook Fig.
Page 131 (17) Install the Heater terminal. Fuser unit Hook Heater terminal Flame R Fig. 4-30 (18) Secure the FU harness cover 1 with the pan B M4x20 Taptite screw. Taptite, pan B M4x20 FU harness cover 1 Hooks Fig. 4-31 Note : •...
Page 132 (19) Catch the Arm of the Rear chute ASSY onto the Pin of the machine body and install the Rear chute ASSY. Rear chute ASSY Fig. 4-32 (20) Catch the Arm of the Back cover onto the Pin of the machine body and install the Back cover.
Page 133 (21) Catch the Pins of the Outer chute onto the Back cover, and close the Back cover. Back cover Outer chute Back cover Fig. 4-34 Set the following parts after assembling. • Set the DX feed ASSY or DX blank cover. •...
Page 134: Paper Feeding Kit For Tray 1, 2, 3
1.2.2 Paper feeding kit for tray 1, 2, 3 < Uninstalling Procedure > Check that the following before entering the procedures. • Make sure that the AC cord is disconnected from the printer. • Make sure that the Drum/toner ASSY is removed. •...
Page 135 (5) Turn the Printer upside down. Note : • Pull out and put into the paper tray so that the Roller holder ASSY is lowered. • If the Roller holder ASSY is remained up, it cannot be removed. (6) Push the Lift arm to the direction of the arrow 6a and pull out the pin of the Roller holder ASSY.
Page 136 (7) Slide the Roller holder ASSY to the direction of the arrow 7a. Then, lift up the gear side of the Roller holder ASSY to the direction of the arrow 7b and pull it out to the direction of the arrow 7c to remove. Roller holder ASSY Paper feed frame Fig.
Page 137 < Installing Procedure > (1) Install the Roller holder ASSY. Note : • When assembling the roller holder ASSY, align the section "A" on the shaft of the roller holder ASSY with the hole on the paper feed frame. Roller holder ASSY "A"...
Page 138 (2) Assemble the Lift arm onto the Pin of the Roller holder ASSY. (3) Place the Printer on its base. Lift arm Roller holder ASSY Paper feed frame Fig. 4-39 (4) Install the DX feed ASSY or DX blank cover, and install the Drum/toner ASSY. 4-28 Confidential...
Page 139 (5) Set the Separation pad spring. (6) Put the Hooks of the Separation pad ASSY into the Paper tray, and turn the Separation pad ASSY to the direction of the arrow 6c to catch the Hooks into the Paper tray. Note : •...
Page 140: Paper Feeding Kit For Mp Tray
1.2.3 Paper feeding kit for MP tray < Uninstalling Procedure > Check that the following before entering the procedures. • Make sure that the AC cord is disconnected from the printer. • Make sure that the Drum/toner ASSY is removed. (1) Open the MP feed frame cover.
Page 141 (2) Remove the Holder bearing MP. Holder bearing MP Hook MP feed frame Fig. 4-42 (3) Lift up the Lift arm MP to release it from the Pin of the MP roller holder ASSY. (4) Slide the MP roller holder ASSY to the direction of the arrow 4a and put it up to remove. MP roller holder ASSY Lift arm MP MP feed frame...
Page 142 (5) Turn the back side of the Separation pad ASSY MP to the direction of the arrow 5a and put it up to remove. Separation pad ASSY MP MP feed frame MP frame Fig. 4-44 4-32 Confidential...
Page 143 < Installing Procedure > (1) Put the Hook of the Separation pad ASSY MP into the MP feed frame and pull down the Separation pad ASSY MP to the direction of the arrow 1b until it is locked. Separation pad ASSY MP MP feed frame MP frame Fig.
Page 144 (3) Put the Holder bearing MP into the MP feed frame and turn the Holder bearing MP to the direction of the arrow 3c to lock. Holder bearing MP Hook MP feed frame Fig. 4-47 (4) Close the MP feed frame cover. MP feed frame MP feed frame cover Front cover...
Page 145 CHAPTER DISASSEMBLY/REASSEMBLY...
Page 146 CHAPTER 5 DISASSEMBLY/REASSEMBLY This chapter details procedures for disassembling and reassembling the machine together with related notes. The disassembly order flow provided enables you to see at a glance the quickest way to get to component(s) involved. At the start of a disassembly job, you check the disassembly order flow that guides you through a shortcut to the object components.
Page 147 8.17 MP Solenoid ASSY ....................5-60 8.18 T1 Solenoid ASSY ..................... 5-61 8.19 Toner Sensor PCB ..................... 5-62 8.20 Register Solenoid ASSY .................... 5-63 8.21 Ejector Solenoid ASSY ....................5-63 8.22 Interlock SW ASSY ....................5-64 8.23 New Toner Actuator ....................5-64 8.24 Gear 17/20/23 ......................
Page 148: Safety Precautions
1. SAFETY PRECAUTIONS To avoid creating secondary problems by mishandling, follow the warnings and precautions below during maintenance work. WARNING • Always turn off the power switch and unplug the power cord from the power outlet before accessing any parts inside the machine. •...
Page 149: Packing
2. PACKING AC power cord Accessory bag USB cord Option carton Drum/toner ASSY Printer Carton Fig. 5-1 Confidential...
Page 150: Screw Torque List
3. SCREW TORQUE LIST Tightening torque Location of screw Screw type Q’ty N m (kgf · cm) FU harness cover 1 Taptite pan B M4x20 0.7±0.1 (7±1) Fuser unit Taptite pan B M4x20 0.7±0.1 (7±1) Process cover stopper Taptite cup B M4x10 0.5±0.1 (5±1) Emblem cover Taptite bind B M3x10...
Page 151 Tightening torque Location of screw Screw type Q’ty N m (kgf · cm) MP PE sensor ASSY Taptite bind B M3x8 0.5±0.1 (5±1) MP frame Taptite bind B M4x12 0.7±0.1 (7±1) PE EG sensor ASSY Taptite bind B M3x8 0.5±0.1 (5±1) LT front cover Taptite bind B M4x12 LT rear cover...
Page 152: Lubrication
4. LUBRICATION The kind of the lubricating oil Lubrication point Quantity of labrication (Maker name) BG-MU Dev gear 37R joint drive 2mm dia. ball (Kanto Kasei) Main motor ASSY Drum gear 82R EM-D110 (MOLYKOTE) Separation pad 2mm dia. ball Gear 82R Apply grease on the cogs of the motor...
Page 153 EM-D110 Separation pad ASSY 4 places Fig. 5-3 Confidential...
Page 154: Gear Layout Drawing
5. GEAR LAYOUT DRAWING Fig. 5-4 Confidential...
Page 155: Harness Routing
6. HARNESS ROUTING MP PE sensor ASSY Hook "A" MP feed frame Printer top side (Printer body upside down) Hole Hook "B" Hook "A" MP PE sensor ASSY MP feed frame High-voltage PS PCB ASSY Confidential...
Page 156 PE EG sensor ASSY Hook "B" PE EG sensor ASSY Hole "A" Printer top side (Printer body upside down) Hook "B" Paper feed frame Hole "A" PE EG sensor ASSY Paper Feed frame Hook "A" High-voltage PS PCB ASSY Interlock SW ASSY Relay front PCB ASSY Hooks Interlock SW ASSY...
Page 157 Toner sensor PCB unit ASSY Relay front PCB ASSY Hooks Frame L Hook Hook Hook Toner sensor PCB unit ASSY Regist solenoid ASSY Relay front PCB ASSY Hooks Frame L Hook Hook Hook Hook Hook Register solenoid ASSY 5-10 Confidential...
Page 158 MP solenoid ASSY Hooks Relay front PCB ASSY Frame L Hooks Hook MP solenoid ASSY T1 solenoid ASSY Relay front PCB ASSY Hooks Frame L Hooks Hook T1 solenoid ASSY 5-11 Confidential...
Page 159 Relay front PCB ASSY Frame L Hook Relay front PCB ASSY Main PCB Laser unit Frame L Laser unit Core Hole LD harness (Flat cable) Main PCB Hook Protective film Polygon motor (Flat cable) Gear cover 5-12 Confidential...
Page 160 Fan motor 60 unit Frame R Hooks Fan motor 60 unit Toner LED PCB unit ASSY Fan motor 60 unit LV Hooks Hook Frame R Hook Hook Toner LED PCB unit ASSY Fan motor 60 unit LV 5-13 Confidential...
Page 161 Toner LED PCB unit ASSY Hooks Frame R Hook Toner LED PCB unit ASSY Hook Hole High-voltage PS PCB ASSY Hook Hooks Printer top side (Printer body upside down) Hole 5-14 Confidential...
Page 162 PS PCB unit Printer top side (Printer body upside down) Base plate LV PS PCB unit Hook SW holder ASSY Power supply switch PS PCB unit <A view> terminal <A view> Core Hooks Inlet harness ASSY FG harness Main PCB Shield cover Main PCB Shield cover...
Page 163 High-Voltage PS PCB ASSY Insulation sheet High-Voltage Hole PS PCB ASSY Main PCB HVPS PCB harness (Flat cable) Printer top side HVPS PCB harness (Printer body upside down) (Flat cable) Wireless PCB (PCB T60 H989 ASSY 04) LD harness Wireless PCB harness Hooks Air duct Frame R...
Page 164 Fuser unit Thermistor ASSY M LVPS PCB unit Hook Fuser unit Thermistor ASSY S Relay rear PCB ASSY Heater terminal 5-17 Confidential...
Page 165: Disassembly Flow Chart
8.10.1 8.10.2 8.10.3 45s / 50s Top Cover Printed ASSY Panel PCB ASSY SW Key A/ B Inner Chute/ Pinch Roller Holder (HL-5340D/5350DN/5370DW) 25s / 10s 45s / 50s 15s / 15s 8.11 8.11.1 8.11.2 8.11.3 15s / 20s 20s / 20s 8.11.4...
Page 166: Disassembly Procedure
8. DISASSEMBLY PROCEDURE Preparation Prior to proceeding with the disassembly procedure, (1) Unplug • the AC cord, • the USB cable, if connected, • the LAN cable, if connected. (2) Remove • the Paper tray, • the Toner cartridge and Drum unit, •...
Page 167: Paper Tray
Paper Tray (1) Pull up the back side of the Separation pad ASSY. (2) Push the Hooks provided on both sides of the Separation pad ASSY inwards. (3) Pull up the Separation pad ASSY. Separation pad ASSY Hooks Hook Hook <Front side>...
Page 168 (4) Remove the Separation pad spring. Separation pad spring aper tray Fig. 5-7 (5) Push the Hook of the lift gear 46 while pushing up the plate up plate, and remove the Lift gear 46. Plate up plate Plate up plate Lift gear 46 Paper tray Lift gear 46...
Page 169 (6) Remove the Gear 21-16. Gear 21-16 Paper tray Fig. 5-9 (7) Remove the Gear 15. Gear 15 Paper tray Fig. 5-10 5-22 Confidential...
Page 170: Back Cover
Back Cover (1) Open the Back cover. (2) Remove the Pins of the Outer chute from the Back cover. Back cover Outer chute Back cover Fig. 5-11 5-23 Confidential...
Page 171 (3) Remove the Arm of the Back cover from the Pin. (4) Remove the Back cover. Back cover Fig. 5-12 5-24 Confidential...
Page 172: Rear Chute Assy
Rear Chute ASSY (1) Hold the Knobs on the Rear chute ASSY and pull down this to your side. (2) Remove the Arms of the Rear chute ASSY from the Pins. (3) Remove the Rear chute ASSY. Knob Rear chute ASSY Knob Fig.
Page 173 (5) Push the Hook of the Rear chute (indicated by the arrow 5a), and move the Eject actuator to the direction of 5b. (6) Lift up the Eject actuator to remove. (7) Remove the Eject actuator spring. Eject actuator spring Eject actuator Rear chute Hook...
Page 174: Fuser Unit
Fuser Unit (1) Remove the pan B M4x20 Taptite screw. Release the Hooks in the order of 1a, 1b and 1c. Remove the FU harness cover 1. Taptite, pan B M4x20 Hooks FU harness cover 1 Fig. 5-17 (2) Disconnect the connector of the Heater terminal while pressing the Hook of the connector of the Fuser unit.
Page 175 (3) Pull the FU harness cover 2 to the direction of 3a while pressing the Hook and pull out the FU harness cover 2 from the back of the printer. FU harness cover 2 Hook Fig. 5-19 (4) Disconnect the connectors of the Thermistor ASSY M and Thermistor ASSY S from the Relay rear PCB ASSY, and remove the harnesses of these thermistors.
Page 176 CAUTION • DO NOT subject the fuser unit to strong physical shocks or vibrations. • DO NOT touch the rollers and the electrodes to prevent damage to the fuser unit In the following figures. (5) Remove the pan B M4x20 Taptite screw, and then remove Fuser unit. Taptite, pan B M4x20 Fuser unit Fig.
Page 177 Assembling Note: • To prevent the deformation of the pressure roller, the fuser unit spare part is shipped with its pressure roller at low nip pressure. Before installing the fuser unit, turn back the levers to the normal position by following instructions below. (1) Put the fuser unit on a flat, horizontal surface.
Page 178: Tray Mp Assy
Tray MP ASSY (1) Open the MP tray cover ASSY. (2) Release the Pins of the Tray MP ASSY from the MP tray cover ASSY. (3) Remove the Tray MP ASSY. Process cover ASSY MP tray cover ASSY Tray MP ASSY Fig.
Page 179: Mp Tray Cover Assy/Process Cover Assy/Emblem Cover
MP Tray Cover ASSY/Process Cover ASSY/Emblem cover (1) Push the front cover release button. (2) Open Process cover ASSY. (3) Release the Hook to remove the Process cover stopper. Front cover release button Process cover ASSY Drive release link Hook MP tray cover ASSY Process cover stopper Fig.
Page 180 (5) Pull the Arm outwards and remove the Process cover ASSY from the MP tray cover ASSY. rocess cover ASSY M tray cover ASSY Fig. 5-27 (6) Remove the cup B M4x10 Taptite screw, and then remove the Process cover stopper. rocess cover rocess cover stopper Taptite, cup B M4x10...
Page 181 (8) Release the Hook of the right side, and then remove the MP tray extention from the MP tray cover ASSY. Hook MP tray extention MP tray cover ASSY Fig. 5-30 (9) Remove the two bind B M3x10 Taptite screws, and then remove the Emblem cover from the MP tray cover.
Page 182: Access Cover/Side Cover L
Access Cover/Side Cover L (1) Remove the Access cover. Access cover <Left side> Fig. 5-32 (2) Remove the two bind B M4x12 Taptite screws, and then remove the Side cover L by releasing the Hooks from 2a to 2d. Taptite, bind B M4x12 Hooks Side cover L Hooks...
Page 183: Main Pcb
Main PCB (1) Remove the four cup S M3x6 SR Taptite screws, remove the FG harness and then remove the Shield cover. Taptite, cup S M3x6 SR Shield cover FG harness Taptite, cup S M3x6 SR Fig. 5-34 (2) Disconnect the five or six connectors and six flat cables from the Main PCB. Note: •...
Page 184: Side Cover R
(3) Remove the cup S M3x6 SR Taptite screw, and then remove the FG harness. (4) Remove the four cup S M3x6 SR Taptite screws and two Screws to remove the Main PCB by following the direction of 4a and 4b. Main PCB Screws FG harness...
Page 185: Top Cover Printed Assy (Led Model)
8.10 Top Cover Printed ASSY (LED model) (1) Remove the two bind B M4x12 Taptite screws from the Top cover printed ASSY. (2) Release all Hooks of the Top cover printed ASSY and lift up the front side of the Top cover printed ASSY.
Page 186: Panel Pcb Assy
8.10.1 Panel PCB ASSY (1) Turn the Top cover printed ASSY upside down. (2) Remove the three cup B M3x8 Taptite screws, and then remove the Panel PCB ASSY. aptite, cup B M3x8 Panel PCB ASSY op cover printed ASSY Fig.
Page 187 (2) Remove the SW key B from the Top cover printed ASSY. W key B Top cover printed A Y Fig. 5-41 5-40 Confidential...
Page 188: Inner Chute/Pinch Roller Holder
8.10.3 Inner Chute/Pinch Roller Holder (1) Remove the six bind B M4x12 Taptite screws, and then remove the Inner chute. (2) Release all Hooks of the Inner chute and lift up the front side of the Inner chute. (3) Pull out the Inner chute to the front side. Taptite, bind B M4x12 Inner chute Taptite, bind B M4x12...
Page 189: Top Cover Printed Assy/Panel Plate Printed Assy (Lcd Model)
8.11 Top Cover Printed ASSY/Panel Plate Printed ASSY (LCD model) (1) Remove the two bind B M4x12 Taptite screws from the Top cover printed ASSY. (2) Release all Hooks of the Top cover printed ASSY and lift up the front side of the Top cover printed ASSY.
Page 190: Inner Chute/Pinch Roller Holder
8.11.1 Inner Chute/Pinch Roller Holder (1) Remove the seven bind B M4x12 Taptite screws, and then remove the Inner chute. (2) Release all Hooks of the Inner chute and lift up the front side of the Inner chute. (3) Pull out the Inner chute to the front side. Taptite, bind B M4x12 Inner chute Taptite, bind B M4x12...
Page 191 (4) Turn the Inner chute upside down. (5) Remove the Pinch roller holder from the Inner chute. Pinch roller holder Inner chute Pinch roller holder Fig. 5-47 Assembling Note: • When assembling the Pinch roller holder, be sure that its direction is correct as shown in the figure above.
Page 192: Panel Pcb Assy
8.11.2 Panel PCB ASSY (1) Disconnect the Back light PCB harness from the LCD panel PCB ASSY. (2) Release the Lock, and then remove the LCD panel PCB harness. Note: • After disconnecting the flat cable(s), check that each cable is not damaged at its end or short-circuited.
Page 193: Sw Key A/B/C /Set Key Printed Assy
8.11.3 SW Key A/B/C /Set Key Printed ASSY (1) Remove the SW key A from the Top cover printed ASSY. SW key A Top cover printed ASSY Fig. 5-50 (2) Remove the SW key B from the Top cover printed ASSY. SW key B Top cover printed ASSY Fig.
Page 194 (3) Remove the SW key C from the Top cover printed ASSY. SW key C Top cover printed ASSY Fig. 5-52 (4) Remove the Set key film. Set key film Set key printed ASSY Top cover printed ASSY Fig. 5-53 5-47 Confidential...
Page 195 (5) Remove the Set key printed ASSY from the Top cover printed ASSY. Set key printed ASSY Top cover printed ASSY Fig. 5-54 (6) Remove the Key top from the Set key printed ASSY. Key top Set key printed ASSY Fig.
Page 196: Lcd Holder Assy
8.11.4 LCD Holder ASSY (1) Release the Hook, and remove the LCD holder from the Top cover printed ASSY. LCD holder Hook Top cover printed ASSY Fig. 5-56 (2) Release the Hook, and remove the Back light PCB ASSY from the LCD holder. Back light PCB ASSY Hook Hook...
Page 197 (3) Release the Hook, and remove the LCD from the LCD holder. Hook LCD holder Hook Fig. 5-58 (4) Remove the Back light film from the LCD holder. Back light film LCD holder Fig. 5-59 5-50 Confidential...
Page 198: Gear Plate Calking Assy/Develop Joint/Main Motor Assy
8.12 Gear Plate Calking ASSY/Develop Joint/Main Motor ASSY (1) Place the printer body so that the Frame L is at the top. (2) Remove the eight bind B M4x12 Taptite screws and one cup S M3x6 taptite screw. (3) Remove the Gear plate calking ASSY from the Frame L. Note: •...
Page 199 (4) Remove the four cup S M3x6 Taptite screws, and then remove the Main motor ASSY. Taptite, cup S M3x6 Main motor ASSY Taptite, cup S M3x6 Ferrite core Gear plate calking ASSY Taptite, cup S M3x6 Fig. 5-61 (5) Remove the Develop joint from the Gear plate calking ASSY. Develop joint Gear plate calking ASSY Fig.
Page 200: Main Shield Plate Assy
8.13 Main Shield Plate ASSY (1) Remove the Insulation sheet. Insulation sheet Frame L Fig. 5-63 5-53 Confidential...
Page 201 (2) Remove the two bind B M4x12 Taptite screws, and then remove the Plate. Taptite, bind B M4x12 Plate Frame L Taptite, bind B M4x12 Plate Base plate LV <Back side> <Back side> Fig. 5-64 Assembling Note: • When assembling the Plate, ensure to put the Plate into the base plate LV. •...
Page 202 (3) Remove the three bind B M4x12 Taptite screws and cup S M3x6 Taptite screw, and then remove the Main shield plate ASSY. aptite, bind B M4x12 aptite, bind B M4x12 aptite, cup S M3x6 Main shield plate ASSY Frame L Fig.
Page 203: Relay Rear Pcb Assy/Connector
8.14 Relay Rear PCB ASSY/Connector (1) Remove the Relay rear PCB ASSY (Include the DX sensor). Relay rear PCB ASSY DX sensor Hook Frame L Hook Hook Fig. 5-67 5-56 Confidential...
Page 204 (2) Remove the Connector harness. (3) Disconnect the LT connector while pressing the Hook inwards. onnector harness LT connector Hook Frame L Hook Fig. 5-68 Assembling Note: • When assembling the LT connector, ensure that its direction is correct referring to the figure below.
Page 205: Relay Front Pcb Assy
8.15 Relay Front PCB ASSY (1) Remove the Relay front PCB ASSY. (2) Disconnect the five connectors from the Relay front PCB ASSY. Relay front PCB ASSY Hook Frame L Hook Fig. 5-70 Register solenoid connector Inter lock SW connector MP solenoid 1 solenoid connector connector...
Page 206: Drive Release Link
8.16 Drive Release Link (1) Remove the bind B M3x10 Taptite screw. (2) Lift up the back end of the Drive release cam slightly while lifting up the MP solenoid lever and the MP solenoid ASSY and remove them from the Frame L. (3) Turn the Drive release link to the direction of the arrow 3 until the groove of the Drive release link is aligned with the boss of the Frame L.
Page 207: Mp Solenoid Assy
8.17 MP Solenoid ASSY (1) Remove the cup B M3x8 Taptite screw, and then remove the Spring. Frame L Taptite, cup B M3x8 Spring Fig. 5-73 Assembling Note: • When assembling the Spring, ensure that its direction is correct referring to the figure below.
Page 208: T1 Solenoid Assy
(2) Remove the MP solenoid ASSY, Solenoid release spring P/R and MP solenoid lever. Solenoid release spring P/R MP solenoid lever MP solenoid ASSY Frame L Fig. 5-75 8.18 T1 Solenoid ASSY (1) Remove the bind B M3x10 Taptite screw. (2) Remove the T1 solenoid ASSY and the Solenoid release spring.
Page 209: Toner Sensor Pcb
8.19 Toner Sensor PCB (1) Remove the Toner sensor PCB unit ASSY from the Frame L. Toner sensor PCB unit ASSY Hooks rame L Fig. 5-77 (2) Remove the PT sensor holder from the Toner sensor PCB ASSY. PT sensor holder Toner sensor PCB ASSY Hooks Fig.
Page 210: Register Solenoid Assy
8.20 Register Solenoid ASSY (1) Remove the bind B M3x10 Taptite screw. (2) Remove the Register solenoid ASSY and the Solenoid release spring. Taptite, bind B M3x10 olenoid release spring Register solenoid A Y Register solenoid lever Frame L Fig. 5-79 8.21 Ejector Solenoid ASSY (1) Remove the bind B M3x10 Taptite screw.
Page 211: Interlock Sw Assy
8.22 Interlock SW ASSY (1) Remove the Interlock SW ASSY from the Frame L. Interlock SW ASSY Frame L Hooks Fig. 5-81 8.23 New Toner Actuator (1) Remove the cup B M2x6 Taptite screw. (2) Remove the New toner actuator and the New toner actuator spring. Taptite, cup B M2x6 New toner actuator Hook...
Page 212: Gear 17/20/23
8.24 Gear 17/20/23 (1) Remove the Gear 23. Hook Gear 23 rame L Fig. 5-84 (2) Remove the Gear 20. Hook Gear 20 rame L Fig. 5-85 5-65 Confidential...
Page 213 (3) Remove the Gear 17 (black). Hook Gear 17 (black) rame L Fig. 5-86 (4) Remove the Gear 17 (white). Hook Gear 17 (white) rame L Fig. 5-87 5-66 Confidential...
Page 214: Filter
8.25 Filter (1) Slide the Sub duct to the direction of 1b while pressing the Hook to the direction of 1a and remove the Sub duct from the Air duct. Air duct Filter <Back side> Sub duct Hook Fig. 5-88 (2) Remove the Filter from the Air duct.
Page 215: Laser Unit
8.26 Laser Unit (1) Release the Hooks of the Air duct from the frame. Slide the Air duct to the direction of 1b and remove the Air duct. Laser unit Hook Hook Hook Air duct Hook Fig. 5-90 (2) Remove the five cup S M3x6 Taptite screws. (The left back screw has already remove at “8.13 Main Shield Plate ASSY“) (3) Remove the Protective film from the Flat cable.
Page 216: Ps Pcb Unit
8.27 PS PCB Unit (1) Turn the Printer upside down. (2) Remove the five bind B M4x12 Taptite screws, and then remove the Base plate LV. (3) Remove the Screw pan (S/P washer) M3.5x6 from the Base plate LV to remove the PS PCB unit terminal.
Page 217 (4) Remove the two bind B M4x12 Taptite screws, and then remove the LV insulation sheet. Taptite, bind B M4x12 LV insulation sheet Fig. 5-93 (5) Remove the bind B M4x12 Taptite screw, and then remove the SW holder ASSY. (6) Float the Fan motor 60 unit LV from the Frame R.
Page 218 (7) Remove the bind B M3x10 Taptite screw, and remove the Safety louver. Frame R Safety louver Taptite, bind B M3x10 Fig. 5-95 (8) Remove the Inlet harness ASSY from the SW holder. (9) Press the Hooks on both sides of the Power supply switch, pull out the Power supply switch to the direction of 8a and pull the wire out of the groove on the SW holder.
Page 219 (10) Disconnect the harness of the fuser unit and power supply harness. (11) Put each harness through the space where the fan 60 unit is assembled and remove the PS PCB unit. (12) Remove the harness from the PS PCB unit. PS PCB unit Harness Fig.
Page 220: High-Voltage Ps Pcb Assy
8.28 High-Voltage PS PCB ASSY (1) Remove the four bind B M4x12 Taptite screws, and then remove the Base plate HV. Taptite, bind B M4x12 Base plate HV Taptite, bind B M4x12 <Front side> Fig. 5-98 (2) Remove the bind B M4x12 Taptite screw, and then remove the HV insulation sheet. Taptite, bind B M4x12 HV insulation sheet Fig.
Page 221 (3) Remove the bind B M4x12 Taptite screw, and then remove the High-voltage PS PCB ASSY. (4) Disconnect the three connectors from the High-voltage PS PCB ASSY. High-voltage PS PCB ASSY Taptite, bind B M4x12 Pins Fig. 5-100 High-voltage PS PCB ASSY MP PE sensor connector PE EG sensor connector Toner LED PCB connector...
Page 222: Wireless Pcb (Pcb T60H989 Assy 04) (Wireless Lan Model)
8.29 Wireless PCB (PCB T60H989 ASSY 04) (Wireless LAN model) (1) Disconnect the connector from the Wireless PCB harness. (2) Remove the Wireless PCB (PCB T60H989 ASSY 04) and Wireless PCB holder from the Frame R. Hook Frame R Wireless PCB harness Wireless PCB (PCB T60H989 ASSY 04) Fig.
Page 223: Toner Led Pcb Unit Assy
8.30 Toner LED PCB Unit ASSY (1) Remove the pan (washer) B M3x8 Taptite screw, and remove the Regist ground spring. (2) Remove the Toner LED PCB unit ASSY from the Frame R. Frame R Hook Pins Toner LED PCB unit ASSY <Right side>...
Page 224: Fan Motor 60 Unit
(3) Disconnect the two connectors from the Toner LED PCB. (4) Release the two Hooks to remove the LED holder from the Toner LED PCB. Fan motor 60 unit LV connector Hook LED holder Fan motor 60 unit connector Hook Toner LED PCB unit ASSY Fig.
Page 225: Fan Motor 60 Unit Lv
8.32 Fan Motor 60 Unit LV (1) Remove the Fan motor 60 unit LV from the Frame R. Frame R Fan motor 60 unit LV Fig. 5-107 5-78 Confidential...
Page 226: Frame L Assy
Note: The procedure for disassembling the Frame L after "8.10 Top Cover Printed ASSY (LED model)" "8.11 Top Cover Printed ASSY/Panel Plate Printed ASSY (LCD model)" is described below. 8.33 FRAME L ASSY (1) Remove the Insulation sheet. Insulation sheet Frame L Fig.
Page 227 (3) Remove the Gear 23, Gear 17 (white), Gear 17 (black) and Gear 20. Gear 23 Gear 17 (White) Gear 20 Gear 17 (black) Fig. 5-110 (4) Remove the six bind B M4x12 Taptite screws and the three cup S M3x6 Taptite screws. (5) Remove the Frame L.
Page 228: Mp Unit
8.34 MP Unit (1) Cut the Binder bundling the harnesses with nippers. Binder Paper feed frame PE EG sensor connector MP PE sensor connector Fig. 5-112 (2) Remove the two bind B M3x8 Taptite screws. (3) Lift up the back side of the MP feed frame and pull up the MP feed frame to remove. Taptite, bind B M3x8 MP feed frame Taptite, bind B M3x8...
Page 229 (4) Open the MP feed frame cover. MP feed frame cover MP feed frame Fig. 5-114 (5) Release the Hook to remove the Holder bearing MP from the MP feed frame. Holder bearing MP Hook MP feed frame Fig. 5-115 5-82 Confidential...
Page 230 (6) Slide the MP roller holder ASSY to the direction of 6a and pull it up to remove. Lift arm MP MP feed frame Hook MP roller holder ASSY Fig. 5-116 (7) Turn the MP feed frame upside down. (8) Slide the PE actuator MP B to the direction of 8b while pressing the Hook to the direction of 8a, and pull it up to remove.
Page 231 (9) Turn the PE actuator MP to the direction of 9a and pull it up to remove. PE actuator MP MP feed frame Fig. 5-118 (10) Remove the bind B M3x8 Taptite screw, and then remove the MP PE sensor ASSY. Taptite, bind B M3x8 MP PE sensor ASSY MP feed frame...
Page 232 (11) Lift up the back of the Separation pad ASSY MP to the direction of 11a and pull up the Separation pad ASSY MP to remove. Separation pad ASSY MP MP frame Fig. 5-120 (12) Remove the MP separation spring from the MP frame. MP separation spring MP frame Fig.
Page 233 Assembling Note: • When assembling the MP separation spring, ensure that its direction is correct referring to the figure below. MP separation spring Bosses Fig. 5-122 5-86 Confidential...
Page 234: Regist Actuator Rear/Regist Actuator Spring
8.35 Regist Actuator Rear/Regist Actuator Spring (1) Turn the Paper feed unit upside down. (2) Release the Hook A of the Actuator cover to pull up the Actuator cover to remove. Actuator cover Hook A Paper feed unit Hook B Fig.
Page 235 Assembling Note: • When assembling the Regist actuator spring, ensure that its direction is correct referring to the figure below. Hook Regist actuator rear Regist actuator spring Hook Fig. 5-125 5-88 Confidential...
Page 236: Regist Actuator Front/Regist Actuator Spring
8.36 Regist Actuator Front/Regist Actuator Spring (1) Slide the Regist actuator front to the direction of 1b while pressing the Hook to the direction of 1a and pull up the Regist actuator front to remove. Then, remove the Regist actuator spring from the Regist actuator front. Regist actuator front Regist actuator spring Hook...
Page 237: Roller Holder Assy
8.37 Roller Holder ASSY (1) Push the Lift arm to the direction of 1a and pull out the pin of the Roller holder ASSY. Then, turn the Roller holder ASSY to the direction of 1b. Lift arm Roller holder ASSY Paper feed frame Fig.
Page 238: Pe Actuator/Edge Actuator/Edge Actuator Spring
8.38 PE Actuator/Edge Actuator/Edge Actuator Spring (1) Remove the Edge actuator spring. Edge actuator spring Paper feed frame Edge actuator Hooks Fig. 5-130 (2) Release the Hook and remove the Separation R shaft bearing. Separation R shaft bearing Hook Paper feed frame Fig.
Page 239 (3) Pull out the Separation roller drive shaft to the direction of the arrow and remove the Edge actuator and PE actuator. Edge actuator PE actuator Separation roller drive shaft Paper feed frame Fig. 5-132 5-92 Confidential...
Page 240: Pe Eg Sensor Assy
8.39 PE EG Sensor ASSY (1) Remove the three bind B M4x12 Taptite screws, and remove the MP frame. Taptite bind B M4x12 MP frame Taptite bind B M4x12 Taptite, bind B M4x12 Frame R Paper feed frame Fig. 5-133 5-93 Confidential...
Page 241 (2) Remove the bind B M3x8 Taptite screw, and then remove the PE EG sensor ASSY. Taptite bind B M3x8 PE EG sensor ASSY Paper feed frame Fig. 5-134 5-94 Confidential...
Page 242: Disassembly Procedure (Lt-5300)
DISASSEMBLY PROCEDURE (LT-5300) Paper Tray (1) Pull out the Paper tray from the LT-5300. Paper tray Fig. 5-135 (2) Pull up the back side of the Separation pad ASSY. (3) Push the Hooks provided on both sides of the Separation pad ASSY inwards. (4) Pull up the Separation pad ASSY.
Page 243 (5) Remove the Separation pad spring. Separation pad spring Paper tray Fig. 5-137 (6) Remove the Lift gear 46. Plate up plate Plate up plate Hook Lift gear 46 Paper tray Lift gear 46 Hook Fig. 5-138 5-96 Confidential...
Page 244 (7) Remove the Gear 21-16. Gear 21-16 Paper tray Fig. 5-139 (8) Remove the Gear 15. Gear 15 Paper tray Fig. 5-140 5-97 Confidential...
Page 245: Lt Front Cover Assy
LT Front Cover ASSY (1) Remove the two bind B M4x12 Taptite screws. (2) Remove the LT front cover ASSY. LT front cover ASSY Taptite, bind B M4x12 Fig. 5-141 (3) Remove the LT front paper guide from the LT front cover ASSY while pulling the two Hooks inwards.
Page 246: Lt Rear Cover
LT Rear Cover (1) Remove the two cup S M3x6 Taptite SR screws. (2) Remove the LT rear cover. LT rear cover Taptite, cup S M3x6 SR <Back side> Fig. 5-143 5-99 Confidential...
Page 247: Lt Side Cover L
LT Side Cover L (1) Remove the bind B M4x12 Taptite screw. (2) Remove the cup S M3x6 Taptite SR screw. (3) Release the Hooks in the order of the arrows and remove the LT side cover L. Taptite, cup S M3x6 SR Boss <Left side>...
Page 248: Lt Side Cover R
LT Side Cover R (1) Remove the bind B M4x12 Taptite screw. (2) Remove the cup S M3x6 Taptite SR screw. (3) Release the Hooks in the order of the arrows and remove the LT side cover R. Taptite, cup S M3x6 SR Boss LT side cover R <Right side>...
Page 249: Lt Pcb Assy
LT PCB ASSY (1) Disconnect the connectors from the LT PCB ASSY. (2) Remove the bind B M4x12 Taptite screw, and then remove the LT PCB ASSY. Hook LT PCB ASSY LT frame L <Left side> Taptite, bind B M4x12 LT PCB ASSY LT sensor harness LT sensor PCB connector...
Page 250: Connector: 55533-1219
Connector: 55533-1219 (1) Disconnect the Connector: 55533-1219 while pressing the Hooks inwards. (2) Remove the LT sensor harness ASSY 1 from the Connector: 55533-1219. Connector: 55533-1219 Hook Hook LT sensor harness ASSY 1 LT frame L Fig. 5-147 Connector: 54702-1219 (1) Disconnect the Connector: 54702-1219 while pressing the Hooks inwards.
Page 251: Gear 24 Lt
Gear 24 LT (1) Place the LT so that the LT frame L is at the top. (2) Release the Hook to remove the Gear 20 T1 roller drive from the LT frame L. LT frame L Hook <Left side> Gear 20 T1 roller drive Fig.
Page 252: Collar 6
9.10 Collar 6 (1) Remove the Gear plate ground spring from the LT frame L. LT frame L Gear plate ground spring Fig. 5-151 (2) Remove the cup S M3x6 Taptite SR screw, and then remove the Feed roller ground plate.
Page 253 (3) Remove the T1 sector gear spring LT from the LT frame L. T1 sector gear spring LT LT frame L Fig. 5-153 Assembling Note: • When assembling the T1 sector gear spring LT, ensure that its direction is correct referring to the figure below.
Page 254 (4) Remove the LT solenoid harness from the Hooks of the LT drive unit. LT drive unit Hooks Hooks LT solenoid harness LT solenoid ASSY Fig. 5-155 (5) Remove the cup S M3x6 Taptite screw. (6) Remove the four bind B M4x12 Taptite screws, and then remove the LT drive unit. Taptite, bind B M4x12 Taptite, bind B M4x12 LT drive unit...
Page 255 (7) Remove the Clutch spring from the LT drive unit. Clutch spring LT drive unit Fig. 5-157 (8) Remove the Collar 6. (9) Remove the Clutch arm ASSY from the LT drive unit. Collar 6 Clutch arm ASSY LT drive unit Fig.
Page 256: Lt Solenoid Assy
9.11 LT Solenoid ASSY (1) Remove the bind B M3x10 Taptite screw, and then remove the LT solenoid ASSY. (2) Remove the Solenoid release spring P/R from the LT solenoid ASSY. Solenoid release spring P/R LT frame L Taptite, bind B M3x10 LT solenoid ASSY Fig.
Page 257: Edge Actuator Spring
(2) Slide the Roller holder ASSY to the direction of the arrow 2a. Then, lift up the gear side of the Roller holder ASSY to the direction of the arrow 2b and pull it out to the direction of the arrow 2c to remove. Roller holder ASSY "A"...
Page 258: Pe Actuator , Edge Actuator
9.14 PE Actuator , Edge Actuator (1) Release the Hook and remove the Separation R shaft bearing. Separation R shaft bearing Hook LT paper feed frame Fig. 5-164 (2) Pull out the Separation roller drive shaft to the direction of the arrow and remove the Edge actuator and PE actuator.
Page 259: Lt Sensor Pcb Assy
9.15 LT Sensor PCB ASSY (1) Remove the two bind B M4x12 Taptite screws. (2) Remove the four cup S M3x6 Taptite SR screws, and then remove the LT frame L. Taptite, cup S M3x6 SR Under bar Taptite, bind B M4x12 Taptite, cup S M3x6 SR Taptite, bind B M4x12 LT frame L...
Page 260 (4) Remove the two cup B M3x12 Taptite screws, and then remove the LT front beam. Taptite, cup B M3x12 LT front beam LT paper feed frame Fig. 5-168 (5) Remove the bind B M3x8 Taptite screw, and then remove the LT sensor PCB ASSY. Taptite, bind B M3x8 LT sensor PCB ASSY LT paper feed frame...
Page 261 CHAPTER ADJUSTMENTS AND UPDATING OF SETTINGS, REQUIRED AFTER PARTS REPLACEMENT Confidential...
Page 262 CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS, REQUIRED AFTER PARTS REPLACEMENT This chapter details adjustments and updating of settings, which are required if the head/ carriage unit, main PCB and some other parts have been replaced. CONTENTS 1. IF YOU REPLACE THE MAIN PCB................6-1 2.
Page 263: If You Replace The Main Pcb
- Acquiring the MAC address Which part to use for the operation The table below shows the ROM type of each main PCB. Main PCB (For a supplied part) Model ROM 0 ROM 1 HL-5340D Main firmware HL-5350DN/ Main firmware Net firmware HL-5350DNLT HL-5370DW/...
Page 264 Once this installation procedure is carried out for the PC, no more driver installation will be required for that PC to identify machines. If BHL2 Maintenance Driver is already installed to your PC, fully uninstall the BHL2 Maintenance Driver before installing Brother Maintenance USB Printer Driver.
Page 265 (8) Alert warning message of WHQL appears three times. Click Continue Anyway to proceed. (9) If the device driver is successfully installed, the following message screen appears. Click Finish to return. (10) Connect the machine to your PC using the USB cable. (11) Select “Install the software automatically (Recommended)”...
Page 266 (12) Alert warning message of WHQL appears. Click Continue Anyway to proceed. (13) If the Brother Maintenance USB Printer driver is successfully installed, the following message screen appears. Click Finish to return. Confidential...
Page 267 (6) Drag the firmware (LZ·········.blf) in the same folder and drop it onto the icon of the Brother Maintenance USB Printer in FILEDG32. The files in the firmware are sent to the printer so that they are started to write into the flash ROM automatically. After finishing receiving the files, the printer starts to rewrite the firmware.
Page 268 (4) Open the “hl5300” folder and double-click the FILEDG32 icon to start. Make sure that there is the “Brother Maintenance USB Printer” icon, and that no error occurs (5) Click the “Brother Maintenance USB Printer” icon in FILEDG32 to select.
Page 269: Setting The Default Paper Size
(6) Drag the firmware (LZ·········.blf) in the same folder and drop it onto the icon of the applicable model in FILEDG32. The files in the firmware are sent to the printer so that they are started to write into the flash ROM automatically.
Page 270 Setting the serial number Operation of printer (LED model) (1) Check that the front cover is open. (2) Turn ON the power switch while the [Go] button is held. (3) After all LEDs on the panel are lit, only the Status LED goes out. (4) Release the [Go] button and check that all LEDs are out.
Page 271 (10) Check the port (USB) that the printer is connected through and click “Serial No.” in the lower box. Enter the serial number (the last nine digits) of the printer into the box at the right hand side. The serial number is shown in the window, and check that it is correct. Follow the next step without clicking the OK button.
Page 272 Setting the toner cartridge type The “Toner Life End” message is displayed according to the upper limit value of the developing roller rotation. The upper limit value is different between the starter toner cartridge, standard one and high-capacity one. Therefore, it is necessary to set the conformable value to the toner cartridge installed in the machine following the steps below.
Page 273: If You Replace The Wireless Lan Pcb
2. IF YOU REPLACE THE WIRELESS LAN PCB <What to do when replacing the wireless LAN PCB> • Backup to the Main PCB of the Wireless LAN PCB Information <Which parts to use> WIRELESS LAN PCB ASSY Backup to the Main PCB of the Wireless LAN PCB Information (Wireless LAN model) The main PCB stores a part of the information of EEPROM on the wireless LAN PCB.
Page 274: Replace Periodical Maintenance Parts
3. IF YOU REPLACE THE PERIODICAL MAINTENANCE PARTS If any of periodical replacement parts are replaced, it is necessary to change the count of total pages on each periodical maintenance parts to zero, and to modify a number of times for replacing each periodical maintenance parts according to the procedures below.
Page 275 (9) Select “Input Information” from Menu. (10) Select the applicable model name. And check the port (USB) that the printer is connected through. (11) Select the item of each periodical maintenance parts and check “ON” and click OK. 6-13 Confidential...
Page 276 CHAPTER SERVICE MODE Confidential...
Page 277 CHAPTER 7 SERVICE MODE The maintenance mode is exclusively designed for the purpose of checks, settings and adjustments using the buttons on the control panel or open/close of the front cover. You can perform operational checks of panel PCB, sensors, perform a print test, display the log information or error codes.
Page 278: Control Panel
Four times 4) Hex Dump Mode Five times 1) Test Sample Page Six times 5) Network Reset (APIPA: ON) (HL-5340D is the print test) Seven times 1) Test Sample Page Eight times 6) Factory Reset Nine times 1) Test Sample Page...
Page 279 Press the [Go] button Front Press the [Go] button Refer when selecting the Function cover when sifting the mode function Open Twice Once 17) Printing for Maintenance 7-10 Twice 18) Maintenance + Test pattern with margin frame 7-12 (DX/LongBind) Three times 19) Network Config Printing 7-12 Four times...
Page 280: User Mode
User Mode Basically, user mode should be accessed by service personnel only. Assist as needed, when the telephone support, end users can operate under service personnel order. <Procedure> <LED model> (1) Check that the front cover is closed. (2) Turn ON the power switch while holding down the [Go] button. (3) After all LEDs on the panel are lit, only the Status LED goes out.
Page 281 PC it is used for defectiveness analysis of the transmitted print data. Network Reset (APIPA: ON) The network setting is reset to its factory setting. (APIPA is ON) HL-5340D is the print test. Factory Reset The machine is restored to the factory setting. (Permanent fonts and macros are not cleared.)
Page 282: Service Mode
Service Mode The service mode is exclusively designed for the purpose of checks, settings and adjustments, and this function should be accessed by service personnel only. You can perform a print test and display the log information. <Procedure> <LED model> (1) Check that the front cover is open.
Page 283 Press the [Go] button twice. Press the [Go] button again depending on the necessary number of times after check that Toner/Drum/Paper LEDs are lighted. Press the [Go] button Mode Once 17) Printing for Maintenance * Start printing when close the front cover. Twice 18) Maintenance + Test pattern with margin frame (DX/LongBind)
Page 284 • The machine goes into the inspection mode by a special operation when the power is turned on. • In the inspection mode, check that the Status LED (HL-5340D/ 5350DN/5350DNLT/ 5370DW/5370DWT) or the Data LED (HL-5380DN) blink when the state of a sensor or a switch is changed (from ON to OFF, or from OFF to ON).
Page 285 • Check the Solenoid. Verify that the ejector solenoid is turned on when the regist front sensor is turned on. Verify that the regist solenoid is turned on when the regist rear sensor is turned on. Verify that the MP solenoid is turned on when the MP PE sensor is turned on. Verify that the T1 solenoid is turned on when the Edge sensor is turned on.
Page 286 15) DX setting (ON/OFF) Select the ON/OFF of duplex setting. Whenever you switch the mode, the setting is changed over from the present one to other. LEDs are as follows when changing the setting. When changing from DX OFF to ON. When changing from DX ON to OFF.
Page 287 17) Printing for Maintenance This is to print a list of all maintenance information including printer coverage information. (There is not the development of each national language, and only English.) Fig. 7-2 7-10 Confidential...
Page 288 Display terms is as follows. Series Name Model name of machine Serial Number Serial number of machine CONT. ROM VERSION Rom version of machine Periodic Replacement The remaining life of PF kit MP, PF kit 1, PF kit 2, PF kit 3, Parts Information Fuser unit, Laser unit, Drum unit and Toner cartridge.
Page 289 [ 0 0 ] [ 0 0 ] [ 0 0 ] ( X X ) ( X X 0 0 0 ) [ 0 0 1 0 1 ] [ X X ] [ X X X X ] NVRAM CHECK SAM Wireless specification Setup (EU/US/JP) Specification Cord...
Page 290 21) Developer Roller Counter Reset 1 (Ineffective) 21) Developer Roller Counter Reset 2 (For the standard toner cartridge) 21) Developer Roller Counter Reset 3 (For the high-capacity toner cartridge) Since print density is likely to become darker as toner is getting older, the developing bias is lowered by degrees according to the number of prints so that an almost fixed density can be maintained from the start of the use of brand-new toner to the end of it.
Page 291 23) USB Speed Indication (ON/OFF) This allows you to switch whether the current USB speed is indicated with the LED or not. Whenever switching, the current setting is changed to the other one. The USB speed is not indicated by default. It also allows you to check the selected setting by the Toner and Drum LEDs being lit for 1 second (USB speed indication is ON) or all LEDs being lit for 1 second (USB speed indication is OFF) when releasing the [Go] button.
Page 292 24) Sleep Mode Indication (OFF/Dimmed) This is to select whether the Status LED is turned off completely or lit in green with low light intensity during the Sleep mode. Whenever you switch this mode, the setting is changed over from the present one to the other.
Page 293: Hidden Function Menus
2. HIDDEN FUNCTION MENUS The three hidden function menus are provided for the HL-5380DN printer with the LCD. (1) Professional Menu: by pressing the [Go] and [Set] buttons at the same time. Refer to "2.1 Professional Menu" in this chapter (2) Reset Parts Life Menu: by pressing the [Go] and [+] buttons at the same time.
Page 294: Professional Menu
Professional Menu The main purpose of the professional menu is to customize the printer function which is opened to the users as per request. How to enter the Professional Menu Turn the machine on. Press the [Go] button and [Set] button together to enter the Professional Menu. How to access the Required Menu Use either [+] or [-] button to scroll through the menu listing.
Page 295 <Function Table> Title & Subtitle Item to be Set Description TRAY SETTING MANUAL FEED PAPER IN=CONT* Feeds paper automatically when printing using the manual feed function. PAPER IN=STOP Feeds paper by pressing the [Go] button when printing using the manual feed function. RESET SETTINGS RESET SETTING1 Selects the "User setting 1"...
Page 296 Title & Subtitle Item to be Set Description FONT SELECT SCALABLE FONT FONT=ALL* Enables all scalable fonts when (Only when the selecting PCL font setting. LaserJet emulation FONT=LJ4 Disables the fonts below when is selected.) selecting PCL font setting. Atlanta, Bermuda Script, PC Brussels, Copenhagen, Germany, Portugal, Calgary, San Diego, US Roman...
Page 297 Title & Subtitle Item to be Set Description FONT SELECT BRO FONT SELECT BROBITM=DISABLE* Disables the internal brougham bitmap fonts of 10 and 12 pitches. BROBITM=ENABLE Enables the internal brougham bitmap fonts of 10 and 12 pitches. ISR FONT SELECT ISRFONT=DISABLE Normal mode ISRFONT=ENABLE...
Page 298 Title & Subtitle Item to be Set Description PS CELL MODE PS CEIL=FLOOR* PS CEIL=CEIL HP ESC E COMMAND HP ESC E=RESET* Normal resetting. HP ESC E=F/F Form feeds a printable page only. DPX FF SUP. MODE DPX SUP. =NOMAL* Deletes all white pages having no data.
Page 299 Title & Subtitle Item to be Set Description TONER LOW TONERLOW=ON* Checks toner with the duty level of Changes the timing 2%. (Default) when the toner low TONERLOW=DELAY Checks toner with the duty level of error is detected. TONERLOW=OFF Does not detect the toner low error. T1 MEDIA FIX T1 FIX=OFF* The media type of Tray1 follows the...
Page 300: Reset Parts Life Menu
Reset Parts Life Menu The reset parts life menu is used when the service personnel replace the periodical replacement parts. This menu is divided into the service menu described in the next section since it is supposed that a user replaces such parts if the replacement operation is easy. To enter the reset parts life menu, press the Go and + buttons at the same time until the menu "RESET PARTS LIFE"...
Page 301: Service Menu
Service Menu The main purpose of the service menu is to provide the service personnel with the printer information. How to enter the Service Menu Turn the machine on. Press the [+] and [Set] buttons in this order while holding down the [Go] button. How to access the Required Menu Use either [+] or [-] button to scroll through the menu listing.
Page 302 Title Subtitle Description SERVICE INFO PRINT PAGES Displays the number of pages when printing each paper size. PRINT PAGES counter will be effective until it counts up to 100,000 pages for each paper size. A4/LTR PAGE Number of prints for A4/LTR: A4, Letter.
Page 303 Title Subtitle Description LIFE PERIOD DRUM UNIT Displays the drum unit life period. (page) PF KIT Displays the PF kit life period. (page) FUSER UNIT Displays the fuser unit life period. (page) LASER UNIT Displays the laser unit life period. (image) DRUM LIFE CHK % Sets up the timing of showing...
Page 304 Title Subtitle Description RESET COUNT CLEAR COVERAGE Initialize average coverage counter of toner during use. CLEAR ERROR HIST Initialize error history. NV-RAM DEBUG NV-RAM HEX PRINT Prints NV-RAM HEX dump. PPDS SUBSET ON/OFF Supports the PPDS Subset command in the FX Emulation mode. TEST MENU FAN TEST Carries out movement test of FANs.
Page 305 Title Subtitle Description MAINTENANCE Always prints the maintenance and PRINT consumable parts information on the second page of the Print Settings. <Developing Bias: xxx V> is added to the end of the page. The xxx characters show 400 V when the developer counter is 0 page, and it is designed that they are changed gradually from 400V to 300V at 4,000 pages (for standard...
Page 306: Other Service Functions
3. OTHER SERVICE FUNCTIONS Wireless LAN setting (Wireless LAN model) When the machine is in a standard state, you can switched to the Effective/Invalidity of the wireless LAN setting by pressing the [Go] button for 10 seconds. At the same time, switched to the Effective/Invalidity of the wired LAN setting.
Page 307 APPENDIX FIRMWARE SWITCHES (WSW) This appendix describes the functions of the Firmware switches. Use the Firmware switch to match the environmental conditions if the machine malfunctions due to mismatching. Confidential...
Page 308 FIRMWARE SWITCHES (WSW) There is not function of the firmware switch in this machine. App. 1-1 Confidential...
Page 309 APPENDIX DELETION OF USER SETTING INFORMATION, etc. This appendix describes how to delete User setting information, etc. Confidential...
Page 310 DELETION OF USER SETTING INFORMATION, etc. User setting such as wired and wireless network settings in the machine is recorded in the EEPROM and the Flash memory on the Main PCB. Follow the procedure described below to delete this information with a single operation. - Net-related information - Macro font - User setting information...
Page 311 APPENDIX SERIAL NUMBERING SYSTEM This appendix describes the meaning of the serial number and property codes and the location of each label. Confidential...
Page 312 SERIAL NUMBERING SYSTEM Each machine has a serial number label for the machine itself and property labels for some other parts. Refer to the information below for the meaning of the serial number and property codes and the location of each label. Serial number labels for the machine itself <How to Read>...
Page 313: Screw Catalogue
APPENDIX SCREW CATALOGUE This appendix describes the used all screws in this machine by actual size. Use this appendix when lose the screw type. Confidential...
Page 314 SCREW CATALOGUE Taptite bind B Screw Taptite bind B Screw M3x8 M2x6 Taptite bind B M3x10 Taptite bind B M4x12 Taptite cup B Taptite cup B M2x6 Taptite cup B M3x8 Taptite cup B M3x12 Taptite cup B M4x10 Taptite pan (washer) Taptite pan (washer) B M3x8 Taptite pan (washer)
Page 315 APPENDIX REFERENCES This page provides the retrieve information. It is possible to get the instruction of the subject by just clicking on the link next page.. Confidential...
Page 316 REFERENCES This page provides reference information. It is possible to get the full instructions of the subjects by just clicking on the links below. 1. Machine specification (Refer to "2. SPECIFICATIONS LIST" in Chapter 2. Paper specification (Refer to "2.6 Paper" in Chapter 3.
Page 317 APPENDIX GLOSSARY This appendix describes the manual specific acronyms and technical terms are used in addition to the generally used ones. The next page contains typical acronyms and technical terms that are used throughout these manuals. Confidential...
Page 318 GLOSSARY ! ACRONYMS AND TECHNICAL TERMS In this manual and the Service Manual, the manual specific acronyms and technical terms are used in addition to the generally used ones. The table below contains typical acronyms and technical terms that are used throughout these manuals. APIPA Automatic Private IP Addressing ASIC...
Page 319 Random Access Memory REGI Registration Solenoid Spare Parts Simplex Tray 1 Toner Empty Thermal Toner Transfer * Excluding the acronym shown on the wiring diagram or circuit diagram. App. 6-2 Confidential...

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Hl-5350dn Hl-5380dn Hl-5350dnlt Hl-5370dw Hl-5370dwt

Brother HL-5340D Service Manual

Chapter 1 Specifications

Chapter 2 Theory of Operation

Chapter 3 Error Indication and Troubleshooting

Chapter 4 Periodic Maintenance

Chapter 5 Disassembly/Reassembly

Chapter 7 Service Mode

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SERVICE MANUAL

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Summary of Contents for Brother HL-5340D

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