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Brother HL-2290 Service Manual

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MODEL
HL-2290/2295D/2590DN/2595DW/B2000D/
B2050DN/B2080DW/L2310D/L2312D/
L2325DW/L2330D/L2331D/L2335D/
L2336D/L2350DW/L2351DW/L2352DW/
L2357DW/L2370DN/L2370DW(XL)/
L2371DN/L2372DN/L2375DW/L2376DW/
L2385DW/L2386DW
Read this manual thoroughly before maintenance work.
Keep this manual in a convenient place for quick and easy reference at all times.
August 2017
SM-PRN111
84UH*
Ver.4
Brother Laser Printer

SERVICE MANUAL

Confidential

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  Summary of Contents for Brother HL-2290

  • Page 1: Service Manual

    Brother Laser Printer SERVICE MANUAL MODEL HL-2290/2295D/2590DN/2595DW/B2000D/ B2050DN/B2080DW/L2310D/L2312D/ L2325DW/L2330D/L2331D/L2335D/ L2336D/L2350DW/L2351DW/L2352DW/ L2357DW/L2370DN/L2370DW(XL)/ L2371DN/L2372DN/L2375DW/L2376DW/ L2385DW/L2386DW Read this manual thoroughly before maintenance work. Keep this manual in a convenient place for quick and easy reference at all times. August 2017 SM-PRN111 84UH* Ver.4...
  • Page 2 Trademarks BROTHER is either a trademark or a registered trademark of Brother Industries, Ltd. Microsoft and Windows are registered trademarks of Microsoft Corporation in the United States and/or other countries. Apple and Mac are trademarks of Apple Inc., registered in the U.S. and other countries.
  • Page 3: Open Source Licensing Remarks

    Open Source Licensing Remarks This product includes open-source software. Go to the manual download selection of your model’s home page of Brother Solutions Center at support.brother.com to view the Open Source Licensing Remarks and Copyright Information. Copyright and License ©2017 Brother Industries, Ltd. All rights reserved.
  • Page 4: Table Of Contents

    CONTENTS SAFETY INFORMATION CHAPTER 1 SUPPLEMENTAL SPECIFICATIONS 1. GENERAL ........................... 1-1 2. NETWORK CONNECTIVITY ....................... 1-6 3. SERVICE INFORMATION ......................1-6 4. SUPPLIES ........................... 1-7 CHAPTER 2 ERROR INDICATIONS AND TROUBLESHOOTING 1. INTRODUCTION ......................... 2-1 Precautions ......................... 2-1 Checks before Commencing Troubleshooting ..............2-3 2.
  • Page 5 Troubleshooting for Software Problems ................2-78 4.4.1 Unable to receive data ..................2-78 Troubleshooting for Network Problems ................2-79 4.5.1 Cannot make a print through network connection ..........2-79 4.5.2 Cannot connect to access point ................2-79 Troubleshooting for Control Panel Problems ..............2-80 4.6.1 Nothing is displayed on the LCD ................
  • Page 6 Outer chute ASSY ......................3-19 Front cover ASSY / Support flap ..................3-20 Side cover R ........................3-23 Fuser cover ........................3-24 Inner chute ASSY ......................3-25 Side cover L ........................3-26 Top cover ASSY ....................... 3-27 9.10 Fuser unit .......................... 3-31 9.11 Low-voltage power supply PCB ASSY ................
  • Page 7 CHAPTER 5 SERVICE FUNCTIONS 1. MAINTENANCE MODE ....................... 5-1 How to Enter Maintenance Mode ..................5-1 1.1.1 Method of entering maintenance mode for service personnel ....... 5-1 1.1.2 Method of entering end-user accessible maintenance mode ......... 5-2 List of Maintenance Mode Functions .................. 5-3 1.2.1 List of maintenance mode functions for LCD models ..........
  • Page 8 1.4.6 Print continuous lattice pattern ................5-46 1.4.7 Check RAM ......................5-46 1.4.8 Change ON/OFF setting for duplex printing ............5-47 1.4.9 Change A4/Letter setting for paper size ............... 5-47 1.4.10 Maintenance printing .................... 5-48 1.4.11 Print maintenance data and frame pattern ............5-49 1.4.12 Resetting to factory shipping state ...............
  • Page 9: Safety Information

    SAFETY INFORMATION  Definitions of Warnings, Cautions, Notes and Memos The following conventions are used in this manual: WARNING WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injuries. CAUTION CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injuries.
  • Page 10  To use the Machine Safely Please keep these instructions for later reference and read them before attempting any maintenance. If you do not follow these safety instructions, there is a possibility of a fire, electrical shock, burn or suffocation. WARNING ELECTRICAL HAZARDS Failure to follow the warnings in this section may create the risk of an electrical shock.
  • Page 11 • DO NOT use the product if the power cord is frayed or damaged. Doing so may cause an electrical shock or fire. • Brother strongly recommends that you DO NOT use any type of extension cord. • DO NOT drop any metallic hardware or any type of liquid on the power plug of the product.
  • Page 12 HOT SURFACE Immediately after using the product, some internal parts of the product will be extremely hot. Wait at least 10 minutes for the product to cool down before you touch the internal parts of the product.  Caution for Laser Product (WARNHINWEIS für Laserdrucker) CAUTION: In case of any trouble with the laser unit, replace the laser unit itself.
  • Page 13: Additional Information

     Additional Information When servicing the optical system of the machine, be careful not to place a screwdriver or other reflective object in the path of the laser beam. Be sure to take off any personal accessories such as watches and rings before working on the machine. A reflected beam, though invisible, can permanently damage the eyes.
  • Page 14: Chapter 1 Supplemental Specifications

    CHAPTER 1 SUPPLEMENTAL SPECIFICATIONS 1. GENERAL The function comparative table for models as described in this Service Manual are shown below. HL-L2350DW HL-L2310D HL-L2330D HL-L2335D Model HL-2290 HL-2295D HL-B2000D HL-L2351DW HL-L2357DW HL-L2312D HL-L2331D HL-L2336D HL-L2352DW Wired/ Wireless Wireless Wireless Duplex ...
  • Page 15 HL-L2310D HL-L2330D HL-L2335D Model HL-2290 HL-2295D HL-L2312D HL-L2331D HL-L2336D Warm-up From Sleep Less than 9 seconds at 73.4F / 50% (23°C / 50%) time mode From Power Less than 26 seconds at 73.4F / 50% (23°C / 50%)  First print From Ready Less than 8.5 seconds at 73.4F (23°C)
  • Page 16 HL-L2350DW Model HL-B2000D HL-L2351DW HL-L2357DW HL-L2325DW HL-2590DN HL-L2352DW Warm-up From Sleep Less than 9 seconds at 73.4F / 50% (23°C / 50%) time mode From Power Less than 26 seconds at 73.4F / 50% (23°C / 50%)  First print From Ready Less than 8.5 seconds at 73.4F (23°C) time...
  • Page 17 HL-L2370DN HL-L2370DW(XL) HL-L2385DW Model HL-L2371DN HL-L2375DW HL-B2050DN HL-B2080DW HL-L2386DW HL-L2372DN HL-L2376DW HL-2595DW Warm-up From Sleep Less than 9 seconds at 73.4F / 50% (23°C / 50%) Less than 4 time mode seconds at 73.4F / 50% (23°C / 50%) From Power Less than 26 seconds at 73.4F / 50% (23°C / 50%) ...
  • Page 18 HL-L2370DN HL-L2370DW(XL) HL-L2385DW Model HL-L2371DN HL-L2375DW HL-B2050DN HL-B2080DW HL-L2386DW HL-L2372DN HL-L2376DW HL-2595DW Weights with Carton 8.3 kg / 18.2 lb 8.3 kg / 18.2 lb 9.0 kg / 19.9 lb 9.2 kg / 20.2 lb (HL-L2370DN (HL-L2370DW for (for Europe) (HL-L2385DW for Europe and the USA, and...
  • Page 19: Network Connectivity

    2. NETWORK CONNECTIVITY HL-L2310D HL-L2330D HL-L2335D Model HL-2290 HL-2295D HL-L2312D HL-L2331D HL-L2336D Wired Network network node type Wireless Network network node type HL-L2350DW Model HL-B2000D HL-L2351DW HL-L2357DW HL-L2325DW HL-2590DN HL-L2352DW Wired Network NC-9300h network node type Wireless Network NC-8800w network...
  • Page 20: Supplies

    4. SUPPLIES HL-L2310D HL-L2330D HL-L2335D Model HL-2290 HL-2295D HL-L2312D HL-L2331D HL-L2336D Toner Starter Approximately 3,000 pages Approximately Approximately Approximately cartridge 700 pages 700 pages 1,200 pages toner (for HL-L2330D) (HL-L2335D for Asia) Approximately 3,000 pages Approximately (HL-L2331D for 3,000 pages...
  • Page 21 HL-L2350DW Model HL-B2000D HL-L2351DW HL-L2357DW HL-L2325DW HL-2590DN HL-L2352DW Toner Starter Approximately Approximately Approximately Approximately Approximately cartridge 2,600 pages 700 pages 1,200 pages 700 pages 3,000 pages toner (except for HL- L2351DW) Approximately 3,000 pages (for HL- L2351DW) Standard Approximately Approximately 1,200 pages toner 1,200 pages (except for HL-...
  • Page 22 HL-L2370DN HL-L2370DW(XL) HL-L2385DW Model HL-L2371DN HL-L2375DW HL-B2050DN HL-B2080DW HL-L2386DW HL-L2372DN HL-L2376DW HL-2595DW Toner Starter Approximately Approximately 700 pages Approximately Approximately cartridge 4,500 pages (for HL-2370DW) 2,600 pages 700 pages toner (HL-L2371DN for (HL-L2385DW for Approximately 7,500 pages Europe) Oceania) (for HL-2370DW(XL)) Approximately Approximately 1,200 pages (HL-L2371DN for...
  • Page 23: Chapter 2 Error Indications And Troubleshooting

    CHAPTER 2 ERROR INDICATIONS AND TROUBLESHOOTING 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 24 Warning DO NOT use any flammable spray or flammable solvent such as alcohol, benzine, or thinner in or around the machine. Otherwise a fire or electric shock may result. (5) Check again that the portions and parts repaired or removed during the repair work function properly when the repair is completed.
  • Page 25: Checks Before Commencing Troubleshooting

    1.2 Checks before Commencing Troubleshooting Check the following items before attempting to repair the machine.  Operating environment (1) The machine is placed on a flat, stable surface. (2) The machine is used in a clean environment where the temperature is between 10°C (50°F) and 32°C (89.6°F) and the relative humidity is maintained between 20% and 80%.
  • Page 26  Cleaning Use a soft dry lint-free cloth. Warning DO NOT use any flammable spray or flammable solvent such as alcohol, benzine, or thinner to clean the machine. DO NOT use these articles near the machine. Confidential...
  • Page 27: Overview

    2. OVERVIEW 2.1 Cross-section Drawing  Manual feed slot models Eject roller 2 Exposure drum Laser unit Registration rear actuator Registration roller Registration front actuator <Back side> <Front side> Manual feed slot Back cover Eject roller 1 Paper dust cleaning roller Eject actuator Paper feed actuator...
  • Page 28  MP models Eject roller 2 Exposure drum Laser unit Registration rear actuator Registration roller Registration front actuator <Back side> <Front side> MP separation roller Back cover MP paper pick-up roller Eject roller 1 MP paper empty actuator MP separation pad Eject actuator Paper dust cleaning roller...
  • Page 29: Paper Feeding

    2.2 Paper Feeding  Manual feed slot models Eject to output tray Feed from manual feed slot Eject to back side <Back side> <Front side> Duplex path Fig. 2-3 Confidential...
  • Page 30  MP models Feed from MP tray Eject to back side <Back side> <Front side> Fig. 2-4 Confidential...
  • Page 31: Operation Of Each Part And Location Of Parts

    2.3 Operation of Each Part and Location of Parts Part name Operation Paper pick up roller Feeds the paper to the separation roller from the paper tray. Separation roller, Separates paper fed from the paper tray into single sheets. Separation pad Paper feed actuator Detects paper trays (open / closed).
  • Page 32 Part name Operation External temperature/humidity Detects external temperature and humidity around the sensor machine. Pickup clutch Drives the pick up roller at the timing of paper feeding. Registration clutch Controls the activation of the registration roller for the paper alignment adjustment. MP solenoid Presses the MP paper pick-up roller against the paper when feeding from the MP tray.
  • Page 33: Block Diagram

    2.4 Block Diagram LED model only Wireless LAN PCB Panel PCB NFC PCB LCD model only Panel PCB Toner box model only Toner box solenoid Relay PCB New toner box sensor High-voltage power supply New toner sensor PCB New toner sensor PCB Toner box model only MP model only...
  • Page 34: Main Components

    2.5 Main Components Top cover ASSY Back cover Inner chute ASSY Outer chute ASSY Side cover R Laser unit Fuser cover New toner sensor PCB ASSY Fuser unit Eject sensor PCB ASSY Main shield plate Low-voltage power supply PCB ASSY High-voltage power supply PCB ASSY Fuser gear...
  • Page 35: Error Indications

    3. ERROR INDICATIONS This machine includes a self-diagnosis function. If the machine does not work normally it judges that an error has occurred, and indicates the corresponding error message on the LCD, which in turn helps the service personnel to quickly find out the problem. 3.1 Error Codes The shaded errors hardly occur under normal use.
  • Page 36: Error Codes

    Error Refer Error Refer Description Description Codes Codes Toner cartridge could not 0D04 --- 2500 communicate with the cartridge 2-37 sensor. 0E00 --- 2501 --- 1003 --- 2502 --- 1004 --- 2503 --- 1100 --- 2601 --- 1200 --- 2602 --- 1300 --- 2603 --- 1400 ---...
  • Page 37 Error Refer Error Refer Description Description Codes Codes 3102 --- 4900 --- 3202 --- 4A00 --- Dot counter of the toner cartridge or 3301 --- 4B01 develop roller counter reaches the 2-38 upper limit soon. 3302 --- 4B02 --- 3401 --- 4B03 --- 3402 --- 4B04 ---...
  • Page 38 Error Refer Error Refer Description Description Codes Codes 5406 --- 6300 --- 5502 --- 6400 --- 5602 --- 6602 --- 5702 --- 6701 --- The side thermistor detected a 5801 --- 6801 temperature higher than the specified 2-43 value. 5802 --- 6802 --- Some fuser unit errors occurred at 5902 ---...
  • Page 39 Error Refer Error Refer Description Description Codes Codes 7104 --- 8100 --- 7105 --- 8401 --- 7106 --- 8402 --- When the paper is fed from the MP tray, after the MP paper empty sensor 7200 detects paper pass, the registration 2-45 8403 --- rear sensor does not detect paper pass...
  • Page 40 Error Refer Error Refer Description Description Codes Codes The registration rear sensor detected that the paper fed was smaller or larger 8A01 2-47 9203 --- than the specified size in duplex printing mode. 8A02 --- 9204 --- 8B01 --- 9205 --- There is no paper set in the manual 8C00 feed slot on the manual feed slot...
  • Page 41 Error Refer Error Refer Description Description Codes Codes 9706 AE00 --- 9801 AF00 --- 9802 B000 --- 9803 B700 --- 9804 B800 --- 9901 B900 --- 9902 BB00 --- 9903 BC00 --- 9A01 BD00 --- 9A02 BF00 --- 9A03 C001 --- 9B01 --- C002 --- 9B02 ---...
  • Page 42 Error Refer Error Refer Description Description Codes Codes FA01 --- FB0A --- FA02 --- FB0B --- FA03 --- FB0C --- FB01 --- FB0D --- FB02 --- FB0E --- FB03 --- FB0F --- FB04 --- FC01 --- FB05 --- FC02 --- FB06 --- FC03 FB07 ---...
  • Page 43: Error Message

    3.2 Error Message The error messages displayed on the LCD and LED of the machine and their description are shown in the table below. 3.2.1 LCD models Error message Error Refer Description codes Initial display Scroll Cannot Detect Put the Drum Unit New process sensor could not back in.
  • Page 44 Error message Error Refer Description codes Initial display Scroll Jam Inside Open the Front After the registration rear sensor Cover, pull out the detects paper pass, the eject Drum Unit sensor does not detect paper 7000 2-44 pass. completely and remove the jammed paper.
  • Page 45 Error message Error Refer Description codes Initial display Scroll No Paper MP Reload paper in MP When paper was fed from the Tray. MP tray, the MP paper empty 9301 2-49 sensor detected that no paper was in the MP tray. No Paper T1 Reload paper in When paper was fed from the...
  • Page 46 Error message Error Refer Description codes Initial display Scroll Print Unable Turn the power off Detected the fuser unit 0501 2-35 and then back on temperature error. 0502 2-35 again. 0503 2-35 0504 2-35 0505 2-35 0506 2-35 0508 2-35 050A 2-35 050B...
  • Page 47 Error message Error Refer Description codes Initial display Scroll Print Unable Turn the power off Read error in the flash ROM and then back on E702 2-51 again. Print Unable Turn the power off An error occurred while and then back on initializing the NFC.
  • Page 48 Error message Error Refer Description codes Initial display Scroll Size Error DX Press Go for 2 For 2-sided printing, paper size seconds. Specify setting of the printer driver that the correct paper was not supported by 2-sided printing was selected. and load the same 9701 2-50...
  • Page 49: Led Display (Led Models)

    3.2.2 LED Display (LED Models)  LED display when operator call occurs Details of the message can be determined by the combination of the LEDs. Refer to the page shown in the “Refer to:” column in the table below to take appropriate measures. Most errors are automatically cleared after measures are taken.
  • Page 50 Error Refer Type of problem codes Dot counter of the toner cartridge or develop roller counter 4B01 2-38 Toner reaches the upper limit soon. Drum The amount of toner supplied of the toner box reaches the Paper upper limit soon. 4B06 2-38 Ready...
  • Page 51 Error Refer Type of problem codes Cartridge sensor detected that the incompatible toner 2200 2-37 Toner cartridge was installed. Drum Toner cartridge is not recognized by the cartridge sensor. 2400 2-37 Paper Toner cartridge could not communicate with the cartridge 2500 2-37 Ready...
  • Page 52: Led Display When Service Call Occurs

     LED display when service call occurs When a service call occurs, the four LEDs flash. Pressing the [Go] allows you to identify the location of the problem based on the combination of the LED status: lit, flashing or unlit. Pressing the [Go] again allows you to see detailed information.
  • Page 53 Press [Go] Press [Go] Error Refer Type of problem once twice codes Detected irregular power Toner Toner Toner supply for more than 100 Drum Drum Drum times. 0900 2-36 Paper Paper Paper Ready Ready Ready Detected that supply Toner power is unstable. (less Drum than 100 times) 6F00...
  • Page 54 Press [Go] Press [Go] Error Refer Type of problem once twice codes When the center Toner Toner Toner thermistor of the fuser unit Drum Drum Drum was lower than the idle temperature, the side 050B 2-35 Paper Paper Paper thermistor detected a Ready Ready Ready...
  • Page 55: Troubleshooting

    4. TROUBLESHOOTING 4.1 Error Cause and Remedy  Error code 0102 ASIC error or motor driver error occurred. Step Cause Remedy Main PCB failure Replace the main PCB ASSY.  Error code 0201 Cannot detect the synchronized signal of the paper feed motor. The speed of the paper feed motor does not stabilize within the specified time.
  • Page 56  Error code 0401 BD sensor failure (second time) Error code 0405 BD sensor failure (first time) <User Check> • There is a possibility of condensation. Leave the front and back cover open for at least 30 minutes when the power is ON. Close those covers and turn the power switch OFF and then back ON again.
  • Page 57  Error code 0501 The center thermistor of the fuser unit has not reached the specified temperature within the specified time. Error code 0502 The center thermistor of the fuser unit has not reached the specified temperature within the specified time after it was heated normally to the certain level. Error code 0503 The center thermistor of the fuser unit detected a temperature higher than the specified value.
  • Page 58  Error code 0900 Detected irregular power supply for more than 100 times. Step Cause Remedy Low-voltage power supply PCB Replace the low-voltage power supply failure PCB ASSY. Refer to “1.3.21 Reset irregular power supply detection counter of low-voltage power supply PCB (Function code 88)”...
  • Page 59  Error code 0B01 An error occurred in the high-voltage power supply PCB ASSY while operating. Error code 0B02 An error occurred in the high-voltage power supply PCB ASSY when the machine was in the ready state. <User Check> • Slide the green tab of the drum unit to left and right for two to three times to clean the corona wire. •...
  • Page 60  Error code 4000 Number of the drum unit rotations reaches the upper limit soon. Error code 4200 Number of the drum unit rotations has reached the upper limit. (Printing does not stop.) <User Check> • Prepare a new drum unit. Step Cause Remedy...
  • Page 61  Error code 4F01 The new toner sensor of the toner cartridge could not detect a new cartridge properly. <User Check> • Replace the toner cartridge with a new toner cartridge again. • If the machine is on the uneven surface, place it on a level surface. Step Cause Remedy...
  • Page 62  Error code 6001 The front cover sensor detected that the front cover was open. <User Check> • Close the front cover. Step Cause Remedy Connection failure of the front Reconnect the front cover sensor cover sensor harness harness. Front cover failure Replace the front cover.
  • Page 63  Error code 6101 The new toner sensor detected that no toner cartridge was set. <User Check> • Set the toner cartridge correctly. Step Cause Remedy New toner sensor PCB failure Replace the new toner sensor PCB ASSY. High-voltage power supply PCB Replace the high-voltage power supply failure PCB ASSY.
  • Page 64  Electrodes location of main body Fig. 2-8  Electrodes location of the drum unit and process unit Fig. 2-9 2-42 Confidential...
  • Page 65  Error code 6801 The side thermistor detected a temperature higher than the specified value. <User Check> • Lower the room temperature. • Keep the machine away from heating appliances. • Check that the fan is not clogged. Step Cause Remedy Connection failure of the side Reconnect the side thermistor harness.
  • Page 66  Error code 6A00 Electric discharge that may be caused by dirt on the corona wire of the drum unit was detected. <User Check> • Slide the green tab of the drum unit to left and right for two to three times to clean the corona wire. •...
  • Page 67  Error code 7100 After the registration rear sensor detects the end of paper pass and the specified period of time has passed, the eject sensor continues to detect paper pass. <User Check> • Remove the jammed paper. • Check if the back cover is open during duplex printing. Step Cause Remedy...
  • Page 68  Error code 7302 When printing from the paper tray, the registration front sensor does not detect paper pass within the specified time after the T1 paper feed sensor detected paper pass. <User Check> • Remove the jammed paper. • Add the paper properly using the paper guide of paper tray. Step Cause Remedy...
  • Page 69  Error code 8903 The back cover sensor detected the open state when 2-sided printing is started (before the registration of printing in the engine). Error code 8904 The back cover sensor detected the open state during 2-sided printing (after the registration of printing in the engine).
  • Page 70  Error code 8C00 There is no paper set in the manual feed slot on the manual feed slot printing. <User Check> • Set the paper in the manual feed slot. Step Cause Remedy Registration front actuator caught Reattach the registration front actuator. in some sections of the machine Connection failure of the Reconnect the registration front/rear...
  • Page 71  Error code 9301 When paper was fed from the MP tray, the MP paper empty sensor detected that no paper was in the MP tray. <User Check> • Load paper to the MP tray. Step Cause Remedy MP paper empty actuator caught Reattach the MP paper empty actuator.
  • Page 72  Error code 9309 Detected that there was no paper set in all trays when TrayAuto was selected for printing. <User Check> • Set paper in the paper tray. Step Cause Remedy Connection failure of the MP Reconnect the MP paper empty sensor paper empty sensor PCB harness PCB harness.
  • Page 73  Error code C700 The memory is insufficient to expand the data of PC-Print. Error code C800 The memory used to store secure print data exceeded the memory size for secure print data. <User Check> • Print the print data stored in the memory. •...
  • Page 74  Error code F900 The spec code was not entered correctly. Step Cause Remedy The power was turned OFF while Reenter the spec code. (Refer to “1.3.16 function code 74 was running. Setting by spec (Function code 74)” in Chapter Main PCB failure Replace the main PCB ASSY.
  • Page 75: Troubleshooting For Paper Feeding Problems

    4.2 Troubleshooting for 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. 4.2.1 No paper feeding from paper tray <User Check>...
  • Page 76: No Paper Feeding From Mp Tray

    4.2.2 No paper feeding from MP tray <User Check> • Check that the paper is set in the MP tray deeply. • Check that too much paper is not loaded in the MP tray. • Check if the machine is used with the MP tray support and MP flap are in closed state. •...
  • Page 77: No Paper Feeding From Manual Feed Slot

    4.2.3 No paper feeding from manual feed slot <User Check> • Check that the paper is set into the deepest part of the manual feed slot. • Check that multiple sheets of paper are not set in the manual feed slot. •...
  • Page 78: Paper Becomes Wrinkled

    4.2.5 Paper becomes wrinkled <User Check> • Check that the paper is set in each paper tray correctly. • Flip over the paper in each paper tray or rotate the paper 180°. • Adjust each paper guide according to each paper size. •...
  • Page 79: Paper Curls

    4.2.7 Paper curls <User Check> • Change the driver setting to be matched with the size of the paper set in the paper tray. • Select “Reduce Paper Curl” in the driver. • Check that the paper is set in each paper tray correctly. •...
  • Page 80: Paper Jam

    4.2.9 Paper jam  Paper jam at the paper tray <User Check> • Check that the paper is set in the paper tray correctly. • Flip over the paper in the paper tray or rotate the paper 180°. • Adjust each paper guide according to the paper size. •...
  • Page 81  Paper jam at the MP tray <User Check> • Check that the paper is set in the MP tray correctly. • Flip over the paper in the MP tray or rotate the paper 180°. • Adjust each paper guide according to each paper size. •...
  • Page 82  Paper jam at the manual feed slot <User Check> • Check that the paper is set in the manual feed slot correctly. • Flip over the paper in the manual feed slot or rotate the paper 180°. • Adjust the paper guide according to the paper size. •...
  • Page 83  Paper jam at the paper feeding section at the center of the machine <User Check> • Check that the paper is set in each paper tray correctly. • Flip over the paper in each paper tray or rotate the paper 180°. •...
  • Page 84  Paper jam at the eject section <User Check> • Check that the paper is set in each paper tray correctly. • Flip over the paper in each paper tray or rotate the paper 180°. • Adjust each paper guide according to the paper size. •...
  • Page 85: Troubleshooting For Image Defects

    4.3 Troubleshooting for Image Defects 4.3.1 Image defect examples Light Faulty registration Dark Poor fixing Completely blank (2-64) (2-65) (2-66) (2-66) (2-67) Image distortion All black Dirt on back side of paper Vertical streaks (2-67) (2-68) (2-68) (2-69) Horizontal stripes White vertical White horizontal Faint print...
  • Page 86: Troubleshooting Image Defect

    4.3.2 Troubleshooting image defect Image defect related problems 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. ...
  • Page 87: Faulty Registration

     Electrodes location of the process unit Fig. 2-13  Faulty registration <User Check> • Check whether appropriate paper type is selected on the driver. • Install the latest main firmware. Step Cause Remedy Registration rear actuator Reattach the registration rear actuator. coming off Laser unit failure Replace the laser unit.
  • Page 88: Poor Fixing

     Dark <User Check> • Check the usage environment of the machine. Using the machine in hot-humid or cold-dry conditions can cause this problem. • If a new toner cartridge has been detected, check that it was not replaced with another toner cartridge. •...
  • Page 89: Image Distortion

     Completely blank <User Check> • Replace the drum unit with a new one. • Replace the toner cartridge with a new one. • Install the latest main firmware. Step Cause Remedy Connection failure of the laser Reconnect the laser unit flat cable. unit flat cable Laser unit attachment failure Reattach the laser unit.
  • Page 90  All black <User Check> • Clean the corona wire of the drum unit. • Replace the drum unit with a new one. Step Cause Remedy Dirt on the electrodes of the Clean the electrodes of the drum unit and drum unit and those of the those of the machine.
  • Page 91: Vertical Streaks

     Vertical streaks <User Check> • Clean the corona wire of the drum unit. • Return the corona wire cleaning tab to the “▲” position. • This problem may disappear after printing multiple sheets of paper. • Refer to <How to clean the drum unit> to remove the dirt from the exposure drum using a cotton applicator.
  • Page 92: Horizontal Stripes

     Horizontal stripes <User Check> • This problem may disappear after printing multiple sheets of paper. • Refer to <How to clean the drum unit> to remove the dirt from the exposure drum using a cotton applicator. • Replace the drum unit with a new one. •...
  • Page 93: Faint Print

     White horizontal stripes on image <User Check> • This problem may disappear after printing multiple sheets of paper. • Replace the drum unit with a new one. • Replace the toner cartridge with a new one. Step Cause Remedy Dirty charge electrodes Clean the electrodes of the drum unit and those of the machine.
  • Page 94  White spots on image <User Check> • Check that the fan is not clogged. • Refer to <How to clean the drum unit> to remove the dirt from the exposure drum using a cotton applicator. • Replace the drum unit with a new one. •...
  • Page 95  Spots or dirt <User Check> • Check if damp paper is used. • Refer to <How to clean the drum unit> to remove the dirt from the exposure drum using a cotton applicator. • Replace the drum unit with a new one. •...
  • Page 96  Band <User Check> • Clean the corona wire of the drum unit. • Clean the corona wire by sliding the green tab of the drum unit to the left end. • This problem may disappear after printing multiple sheets of paper. •...
  • Page 97 (2) Use the numbered markers next to the drum roller to find the mark on the drum. For example, a dot in column 2 on the check sheet means that there is a mark in drum region “2”. Fig. 2-17 (3) Turn the edge of the drum unit towards you while looking at the drum surface to find the mark.
  • Page 98: Horizontal Lines

     Downward fogging of solid color <User Check> • Replace the toner cartridge with a new one. Step Cause Remedy High-voltage power supply Replace the high-voltage power supply PCB PCB failure ASSY. Main PCB failure Replace the main PCB ASSY. ...
  • Page 99  Ghost <User Check> • Check the usage environment of the machine. Using the machine in hot-humid or cold-dry conditions can cause this problem. • Check whether appropriate paper type is selected on the driver. • Select “Improve Toner Fixing” in the driver. •...
  • Page 100: Troubleshooting For Software Problems

    (2) Click the [More Info...] in the [About This Mac] dialog box. (3) Select [USB] under the [Hardware] in [Contents] on the left side. (4) Select the machine [HL-XXXX] from [USB Device Tree]. (5) Check [Product ID] in [HL-XXXX].  Product ID (Hexadecimal) HL-2290 : 0093h HL-L2310D : 009Ah HL-2295D...
  • Page 101: Troubleshooting For Network Problems

    4.5 Troubleshooting for Network Problems 4.5.1 Cannot make a print through network connection <User Check> • Check the relevant section in the Network Setting Guide. • Check the network connection. • Reset the network. (Refer to the online User’s Guide.) •...
  • Page 102: Troubleshooting For Control Panel Problems

    4.6 Troubleshooting for Control Panel Problems 4.6.1 Nothing is displayed on the LCD <User Check> • Turn the power switch OFF and then back ON again. • Unplug the AC cord and then plug it again. Step Cause Remedy Connection failure of the Reconnect the panel relay flat cable.
  • Page 103: Troubleshooting For Toner Cartridge And Drum Unit Problems

    4.7 Troubleshooting for Toner Cartridge and Drum Unit Problems 4.7.1 New toner not detected <User Check> • Be sure to set a new toner cartridge(or box). • Check that the genuine toner cartridge(or box) is set. Step Cause Remedy New toner actuator coming off Reattach the new toner actuator.
  • Page 104: Toner Replacement Message Displayed On Lcd Is Not Cleared

    4.7.3 Toner replacement message displayed on LCD is not cleared <User Check> • Be sure to set a new toner cartridge(or box). • Check that the genuine toner cartridge(or box) is set. Step Cause Remedy New toner actuator coming off Reattach the new toner actuator.
  • Page 105: Troubleshooting For Fuser Unit Problems

    4.8 Troubleshooting for Fuser Unit Problems 4.8.1 Fuser unit failure Step Cause Remedy Connection failure of the Reconnect the center thermistor harness. center thermistor harness Connection failure of the side Reconnect the side thermistor harness. thermistor harness Connection failure of the Reconnect the heater harness.
  • Page 106: Troubleshooting For Pcb Problems

    4.10 Troubleshooting for PCB Problems 4.10.1Main PCB failure <User Check> • Turn the power switch OFF and then back ON again. • Install the latest main firmware. • Check the print limit ID. • Check that the print data is not damaged. Step Cause Remedy...
  • Page 107: Troubleshooting For Other Problems

    4.11 Troubleshooting for Other Problems 4.11.1 Cannot make print <User Check> • Turn the power switch OFF and then back ON again. • Check that the USB cable is connected to the host correctly. • Check that the LAN cable is connected to the host correctly. •...
  • Page 108: Cannot Update Firmware

    For LCD models Turn ON the machine while pressing the [OK] and [Go]. 3) Double-click the “Filedg32.exe” to start, and select “Brother Maintenance USB Printer”. 4) Drag and drop the firmware (upd file) in the FILEDG32 screen. Update is started.
  • Page 109: Message Indicating That The Report Is Full Does Not Disappear

    4.11.4 Message indicating that the report is full does not disappear <User Check> • Output each report. Step Cause Remedy Main PCB failure Replace the main PCB ASSY. 4.11.5 Paper tray cannot be recognized <User Check> • Close the paper tray properly. Step Cause Remedy...
  • Page 110: Chapter 3 Disassembly/Reassembly

    CHAPTER 3 DISASSEMBLY/REASSEMBLY 1. SAFETY PRECAUTIONS To avoid creating secondary problems by mishandling, follow the warnings and precautions below during maintenance work. WARNING Some parts inside the machine are extremely hot immediately after the machine is used. When opening the front cover ASSY or back cover to access any parts inside the machine, never touch the shaded parts shown in the following figures.
  • Page 111: Packing

    2. PACKING Option carton Process pad Process pad AC cord carton Spacer carton Polystyrene pad ASSY Polystyrene pad ASSY Carton Carton Fig. 3-1 Confidential...
  • Page 112: Screw Catalogue

    3. SCREW CATALOGUE Taptite bind B Screw cup Screw cup Taptite bind B M3x8 M3x8 Taptite bind B Taptite cup S M3x10 Taptite cup S Taptite bind B M3x6 SR M4x12 Taptite cup S Taptite pan B M3x8 SR Taptite pan B Screw pan (S/P washer) M4x14 Screw pan (S/P washer)
  • Page 113: Screw Torque List

    4. SCREW TORQUE LIST Tightening torque Location of screw Screw type Q’ty N·m (kgf·cm) Inner chute ASSY Taptite bind B M4x12 0.8±0.1 (8±1) Top cover ASSY Taptite bind B M4x12 0.8±0.1 (8±1) Fuser unit Taptite pan B M4x14 0.8±0.1 (8±1) LVPS shield plate cover Screw cup M3x8 (black) 0.45±0.05 (4.5±0.5)
  • Page 114 Tightening torque Location of screw Screw type Q’ty N·m (kgf·cm) Toner box drive cover Taptite bind B M4x12 0.8±0.1 (8±1) Toner sensor PCB ASSY Taptite bind B M3x8 0.4±0.05 (4±0.5) Holder toner box Taptite bind B M4x12 0.8±0.1 (8±1) Lift cam guide Taptite bind B M4x12 0.8±0.1 (8±1) Main shield plate...
  • Page 115: Lubrication

    5. LUBRICATION Lubricating oil type Lubrication point Quantity of lubrication (Maker name) FLOIL BG-10KS (Kanto Kasei) Fuser gear 64R/36R 3 places 1.5 to 2.0 mm dia. ball  Fuser gear 64R/36R Fig. 3-3 Confidential...
  • Page 116: Overview Of Gears

    6. OVERVIEW OF GEARS <Layout view> 8,9,10 4,5,6 Fig. 3-4 <Development view> Fig. 3-5 Note: • When handling gears, make sure that frame L faces up. Otherwise all gears come off. <Name of gears> D00AHW Ejector gear 16/15 D00HHK Gear 70R DEV LY9006 Ejector gear 33 D00HHM Clutch DEV NON toner box...
  • Page 117 <Layout view> 17,18,19 Fig. 3-6 <Development view> Fig. 3-7 Note: • When handling gears, make sure that frame L faces up. Otherwise all gears come off. <Name of gears> D00EGI Gear toner box idle 32 D00CXT Gear 23R PF D00CUB Sector gear toner box D00AK9 Gear 38L PF...
  • Page 118: Harness Routing

    7. HARNESS ROUTING Top cover ASSY <LCD models> <LED models> LCD flat cable NFC flat cable (Only for models with NFC) Panel flat cable Panel flat cable Harness colors are subject to change for some reason. Confidential...
  • Page 119 Rear side of the machine Laser unit flat cable HVPS flat cable Polygon motor harness (WH) Eject sensor PCB ASSY High-voltage power supply PCB ASSY New toner sensor flat cable Registration front/rear sensor harness (GR, WH, BL, RD) Fan harness (RD, BK, WH) Fuser unit heater harness (WH) Side thermistor harness ASSY...
  • Page 120 Top side of the machine HVPS flat cable Toner box relay flat cable* /MP relay flat cable* Main PCB ASSY Polygon motor harness (WH) For models with Toner box For MP models Harness colors are subject to change for some reason. 3-11 Confidential...
  • Page 121 Frame L unit (Manual feed models) Relay PCB ASSY* Toner box solenoid harness (WH) * Panel flat cable Toner box relay flat cable* Laser unit flat cable HVPS flat cable Toner box new Main PCB ASSY harness (BL) * Toner sensor harness (RD) * Back cover/duplex tray sensor harness (RD, BL) Front cover...
  • Page 122 Frame L unit (MP models) Panel flat cable Laser unit flat cable HVPS flat cable NFC flat cable MP relay flat cable Relay PCB ASSY MP sensor harness (BK) Back cover/duplex tray MP paper empty sensor harness (RD, BL) sensor harness (RD) Main PCB ASSY Front cover sensor harness (YW)
  • Page 123 Top side of the registration chute Top side LVPS harness (WH, BK) Frame R unit Registration front/rear sensor harness (GR, WH, BL, RD) Paper feed sensor harness (RD, BL, WH) Paper feed sensor harness (RD, BL, WH) Harness colors are subject to change for some reason. 3-14 Confidential...
  • Page 124 Frame R unit Registration front/rear sensor harness (GR, WH, BL, RD) LVPS harness (WH, BK) Harness colors are subject to change for some reason. 3-15 Confidential...
  • Page 125: Disassembly Flow Chart

    8. DISASSEMBLY FLOW CHART Disassembly / Reassembly (second) 9.19 Roller holder ASSY 9.5 Side cover R 9.8 Side cover L 10/10 10/10 9.13 HVPS flat cable / 9.18 Wireless LAN 9.21 T1 clutch / 9.2 Back cover High-voltage power Registration clutch supply PCB ASSY 10/20 10/25...
  • Page 126: Disassembly Procedure

    9. DISASSEMBLY PROCEDURE 9.1 Preparation  Disconnecting Cables and Removing Accessories Prior to proceeding with the disassembly procedure, (1) Disconnect the following: • USB cable (if connected) • LAN cable (if connected) (2) Remove the following: • Paper tray • Toner cartridge & Drum unit or Toner box & Process unit •...
  • Page 127: Back Cover

    9.2 Back cover (1) Open the Back cover. (2) Push both Ribs on the Back cover outward, and remove the Pin on the Outer chute ASSY. (3) Pull out the right side of the Back cover in the direction of the arrow A to remove it from the Boss, and remove the Back cover in the direction of the arrow B.
  • Page 128: Outer Chute Assy

    9.3 Outer chute ASSY (1) Pull out the right side of the Outer chute ASSY in the direction of the arrow A to remove the Boss of the Outer chute ASSY, and remove the Outer chute ASSY in the direction of the arrow B.
  • Page 129: Front Cover Assy / Support Flap

    9.4 Front cover ASSY / Support flap  Manual feed models (1) Open the Front cover ASSY. (2) Remove the Collar 4 to remove the Develop joint link from the Front cover ASSY. (3) Lift the Rib on the Front chute ASSY, and slide the Front cover ASSY in the direction of the arrow A to remove it.
  • Page 130  MP models (1) Open the Front cover ASSY. Remove the Collar 5 from the Link MP pin. Collar 5 Link MP pin Front cover ASSY Fig. 3-12 (2) Close the Front cover ASSY. Open the MP tray, and release each Boss and remove the MP paper guide from the MP tray.
  • Page 131 (4) Open the Front cover ASSY. Release each Boss and remove the Front cover ASSY. (5) Remove the Support flap from the Front cover ASSY. Boss Boss Support flap Front cover ASSY Fig. 3-14 3-22 Confidential...
  • Page 132: Side Cover R

    9.5 Side cover R (1) Release the Hooks A, B, and the Hook C on the Side cover R in order of the arrow A to C, and remove the Side cover R. Side cover R Hooks A Hook C Hooks B Fig.
  • Page 133: Fuser Cover

    9.6 Fuser cover (1) Hold the Knobs on the Fuser cover, and pull the Fuser cover down. (2) Pull the Fuser cover in the direction of the arrow to remove it from the Bosses, and remove the Fuser cover. Boss Fuser cover Boss Boss...
  • Page 134: Inner Chute Assy

    9.7 Inner chute ASSY (1) Pull down the Green envelope levers on both sides of the Fuser unit. (2) Remove the two Taptite bind B M4x12 screws, and remove the Inner chute ASSY. Top cover ASSY Fuser unit Positioning holes Green envelope lever Hooks...
  • Page 135: Side Cover L

    9.8 Side cover L (1) Release the Hooks A, B, and the Hook C on the Side cover L in order of the arrow A to C, and remove the Side cover L. Side cover L Hook C Hooks A Hooks B Fig.
  • Page 136: Top Cover Assy

    9.9 Top cover ASSY (1) Disconnect the Panel flat cable and the NFC flat cable (only for models with NFC) from the Main PCB ASSY. Note: • After disconnecting flat cables, check that each cable is not damaged at its end or short-circuited.
  • Page 137  Top cover ASSY <LED models> (5) Release each Hook to remove the Panel PCB ASSY from the Top cover ASSY. Release the Panel flat cable from the securing fixtures. Panel PCB ASSY Panel flat cable <Bottom side of Top cover ASSY> Top cover ASSY Hooks Fig.
  • Page 138  Top cover ASSY <LCD models> (5) Disconnect the LCD flat cable from the LCD PCB ASSY. Note: • After disconnecting flat cables, check that each cable is not damaged at its end or short-circuited. • When connecting flat cables, do not insert them at an angle. After insertion, check that the cables are not at an angle.
  • Page 139 (7) Remove the Rubber key from the Top cover ASSY. (8) Release each Hook A to remove the LCD cover from the Top cover ASSY. (9) Release the Hook B to remove the LCD ASSY from the LCD cover. (10) Release the Hook C to remove the NFC PCB ASSY from the Top cover ASSY. (Only for models with NFC) Hole Rubber key...
  • Page 140: Fuser Unit

    9.10 Fuser unit (1) Release the Fuser unit heater harness from the securing fixtures, and disconnect it from the LVPS-heater harness. <Back side> Fuser unit heater harness LVPS-heater harness Fig. 3-23 Harness routing: Refer to “2. Rear side of the machine”.
  • Page 141 (4) Remove the two Taptite pan B M4x14 screws, and remove the Fuser unit. <Back side> Taptite pan B M4x14 Fuser unit Fig. 3-25 Note: • DO NOT apply a physical impact or vibration to the Fuser unit. • DO NOT touch the roller and the electrodes to prevent breakage of the Fuser unit. Fig.
  • Page 142: Low-Voltage Power Supply Pcb Assy

    9.11 Low-voltage power supply PCB ASSY When removing the Low-voltage power supply, DO NOT touch it within 3 minutes after disconnecting the AC cord as it may cause WARNING an electric shock due to the electric charge accumulated in the capacitor.
  • Page 143 (2) Remove the Screw pan M4x8 screw, the Washer spring 2-4, and the Washer 5, and remove the Ground harness from the LVPS shield plate. (3) Release the Ground harness from the securing fixtures. (4) Remove the Power cord from the Mounting position and release it from the securing fixtures.
  • Page 144: New Toner Sensor Pcb Assy

    9.12 New toner sensor PCB ASSY (1) Disconnect the New toner sensor flat cable from the High-voltage power supply PCB ASSY, and release the Hook to remove the New toner sensor PCB ASSY. Disconnect the Registration front/rear sensor harness from the New toner sensor PCB ASSY. Registration front/rear sensor harness New toner sensor PCB ASSY New toner sensor flat cable...
  • Page 145: Hvps Flat Cable / High-Voltage Power Supply Pcb Assy

    9.13 HVPS flat cable / High-voltage power supply PCB ASSY (1) Disconnect the HVPS flat cable from the High-voltage power supply PCB ASSY. Disconnect the HVPS flat cable from the Main PCB ASSY, and release it from the securing fixtures. Note: •...
  • Page 146 Assembling Note: • Fold the HVPS flat cable at the positions described below. <High-voltage power supply PCB side> Electrode 45° 45° 20° 20° 45° Mountain fold Reinforcing tape Valley fold <Main PCB side> Fig. 3-31 3-37 Confidential...
  • Page 147: Fan

    9.14 Fan (1) Release the Fan harness from the securing fixtures. (2) Release each Hook to remove the Fan, and pull out the Fan harness from the Hole. Hook <Back side> Hole Fan harness Label Hook Fig. 3-32 Harness routing: Refer to “2.
  • Page 148: Relay Pcb Assy (For Toner Box Models And Mp Models)

    9.15 Relay PCB ASSY (For toner box models and MP models) Toner box new PCB ASSY (For models with toner box)  Toner box models (1) Disconnect the Toner box relay flat cable from the Main PCB ASSY. (2) Release the Toner sensor harness, the Toner box new harness, and the Toner box solenoid harness from the securing fixtures.
  • Page 149  MP models (1) Disconnect the MP relay flat cable from the Main PCB ASSY. (2) Release the MP sensor harness and the MP paper empty sensor harness from the securing fixtures. (3) Remove the Taptite bind B M4x12 screw. Remove the Relay PCB ASSY, and disconnect each harness from the Relay PCB ASSY.
  • Page 150: Laser Unit Flat Cable / Laser Unit

    9.16 Laser unit flat cable / Laser unit (1) Disconnect the Laser unit flat cable from the Main PCB ASSY and the Laser unit, and release it from the securing fixtures. Note: • After disconnecting flat cables, check that each cable is not damaged at its end or short-circuited.
  • Page 151 Assembling Note: • Fold the Laser unit flat cable at the positions described below. Mountain fold Valley fold 234±5 71±1 108±1 <Main <Laser PCB side> unit side> 45° Electrode Electrode Fig. 3-36 Assembling Note: • After the replacement, refer to “3.
  • Page 152: Filter

    9.17 Filter (1) Release the Hook to remove the Filter from the Air duct. Filter Hook Air duct Fig. 3-38 3-43 Confidential...
  • Page 153: Wireless Lan Pcb (Only For Wireless Network Models)

    9.18 Wireless LAN PCB (Only for wireless network models) (1) Remove the Tape on the Wireless LAN PCB, and disconnect the Wireless LAN PCB from the Main PCB ASSY. Tape Wireless LAN PCB Hole Main PCB ASSY <Back side> Tape Wireless LAN PCB Fig.
  • Page 154: Roller Holder Assy

    9.19 Roller holder ASSY (1) Push the Link arm in the direction of the arrow A. Rotate the Roller holder ASSY, and release the Boss. (2) Slide the Roller holder ASSY in the direction of the arrow B, and remove it from the Shaft. Remove the Roller holder ASSY.
  • Page 155: Main Pcb Assy

    9.20 Main PCB ASSY (1) Disconnect all harnesses and flat cables from the Main PCB ASSY. Cartridge sensor harness (For models without Toner box) Main PCB ASSY Front cover sensor harness Registration clutch harness Paper feed motor flat cable Paper feed sensor harness T1 clutch harness LVPS harness Eject sensor flat cable...
  • Page 156: T1 Clutch / Registration Clutch

    9.21 T1 clutch / Registration clutch  Manual feed models (1) Release the T1 clutch harness and the Registration clutch harness from the securing fixtures. (2) Release the Hook, and remove the T1 clutch. (3) Release the Hook, and remove the Registration clutch. Registration clutch Registration Hook...
  • Page 157  MP models (1) Release the Registration clutch harness from the securing fixtures. (2) Remove the Collar 4 to remove the Registration clutch. Collar 4 Registration clutch Registration clutch harness Fig. 3-45 (3) Release the T1 clutch harness and the Paper feed sensor harness from the securing fixtures.
  • Page 158 Assembling Note: • When securing the T1 clutch harness and the Registration clutch harness, check that there is no harness slack. • Attach the Rotation stopper of the T1 clutch by engaging it with the Pin of the machine as shown in the figure below. •...
  • Page 159: Frame L Unit

    9.22 Frame L unit  Manual feed models (1) Remove the two Taptite bind B M4x12 screws and the Screw pan (S/P washer) M3x12DB screw, and remove the Front chute ASSY. (2) Release the LVPS harness, the Cartridge sensor harness (only for models without Toner box) and the Paper feed sensor harness from the securing fixtures.
  • Page 160  MP models (6) Remove the three Taptite bind B M4x12 screws to remove the Front chute ASSY. Pull out the MP paper empty sensor harness from the Hole of the Frame L unit. (7) Release the LVPS harness from the securing fixtures. (8) Remove the Regist FG spring from the Motor drive sub ASSY and the Conductive bushing 5.
  • Page 161  Common to all models (11) Remove the Taptite bind B M4x12 (11a) screw (for securing the Under bar), the Taptite cup S M3x6 SR (11b) screw (for securing the Chute ground plate), the Taptite bind B M4x12 (11c) screw (for securing the Registration chute), and the Taptite cup S M3x8 SR (11d) screw (for securing the Laser L FG plate).
  • Page 162: Paper Feed Motor / Paper Feed Motor Flat Cable

    9.23 Paper feed motor / Paper feed motor flat cable (1) Release the Paper feed motor flat cable and the Front cover sensor harness from the securing fixtures. (2) Remove the Taptite bind B M4x12 screw. Release the Hook, and slide the Flat cable guide in the direction of the arrow to remove it from the Motor drive sub ASSY.
  • Page 163 Assembling Note: • If you removed the Motor drive sub ASSY while the Fuser unit was attached on the machine, remove the Fuser unit once (refer to “9.10 Fuser unit”) and reattach it after attaching the Motor drive sub ASSY. The Conductive leaf spring of the Fuser unit may be deformed by the Calking shaft.
  • Page 164: Fuser Gear 64R/36R

    9.24 Fuser gear 64R/36R (1) Remove the Fuser gear 64R/36R from the Frame L unit. Fuser gear 64R/36R Frame L unit Fig. 3-54 3-55 Confidential...
  • Page 165: Toner Sensor Pcb Assy (Only For Models With Toner Box)

    9.25 Toner sensor PCB ASSY (Only for models with Toner box) (1) Release the Toner sensor harness from the securing fixtures. (2) Remove the two Taptite bind B M4x12 screws. Release the Hook to remove the Toner box drive cover from the Frame L unit. Pull out the Toner sensor harness from the Hole. (3) Slide the Develop joint link in the direction of the arrow.
  • Page 166: Front Cover Sensor

    9.26 Front cover sensor (1) Remove the Gear toner box idle 32 and the Sector gear toner box from the Holder toner box. (Only for models with Toner box) (2) Remove the Spring sector gear toner box from the Hook of Holder toner box and the Hook of Lever solenoid.
  • Page 167: Eject Sensor Pcb Assy

    9.27 Eject sensor PCB ASSY (1) Remove the Taptite cup S M3x8 SR screw and the Screw pan (S/P washer) M3x12DB screw. Lift the upper side of the Main shield plate up to remove it from the Pin, and pull out the Main shield plate in the direction of the arrow to remove it from the Rib of the Frame L unit.
  • Page 168 (2) Release the Hook A, and remove the Eject sensor PCB ASSY from the Pin of the Frame L unit. (3) Release the Back cover/duplex tray sensor harness from the securing fixtures. (4) Release the Hook B, and remove the DX sensor stopper 2 from the Frame L unit. (5) Release each Hook C, and remove the Back cover/duplex tray sensor from the Frame L unit.
  • Page 169: Registration Front/Rear Actuator Holder Assy

    9.28 Registration front/rear actuator holder ASSY Note: • As the Under bar is easy to bend, be careful to handle it. (1) Release the Hook part of the Under R FG wire from the LVPS shield plate. (2) Raise the Laser R FG plate slightly to remove it from the Pin. (3) Remove the Taptite cup S M3x8 SR screw and the Taptite bind B M4x12 screw, pull out the right side of the LVPS shield plate in the direction of the arrow A to remove it from the Pin.
  • Page 170 (4) Release the Registration front/rear sensor harness and the LVPS harness from the securing fixtures. (5) Remove the Taptite cup S M3x6 SR screw and the two Taptite bind B M4x12 screws to remove the Frame R unit. Pull out the Registration front/rear sensor harness from the Hole. Registration front/rear sensor harness Frame R unit Taptite bind B M4x12...
  • Page 171 (6) Remove the Taptite bind B M3x10 screw. Release each Hook, and remove the Registration front/rear actuator holder ASSY from the Registration chute. Pull out the Registration front/ rear sensor harness from the Hole. Hook Taptite bind B M3x10 Registration front/rear actuator holder ASSY Hook Hooks...
  • Page 172: Paper Feed Roller Assy / Paper Feed Sensor Pcb Assy

    9.29 Paper feed roller ASSY / Paper feed sensor PCB ASSY (1) Release each Hook of the Paper feed sensor cover to remove the Paper feed sensor cover. (2) Remove the Paper feed actuator spring from the Hook of the Paper feed actuator and the Hook of the Paper feed frame ASSY.
  • Page 173: Chapter 4 Adjusting And Updating Settings As Required After Parts Replacement

    CHAPTER 4 ADJUSTING AND UPDATING SETTINGS AS REQUIRED AFTER PARTS REPLACEMENT 1. IF YOU REPLACE THE MAIN PCB ASSY  What to do after replacement • Setting by Spec • Installing Firmware (Sub firmware and main firmware) • Setting Serial Number and Entering Adjusted Value of Laser Unit ...
  • Page 174: Setting By Spec

    1.1 Setting by Spec <Operating Procedure> Note: • When the supply PCB is replaced with a new one, the machine automatically enters maintenance mode by turning it ON so the procedure (1) below to enter the maintenance mode is not necessary. LCD models (1) Press the [OK] and then the [Go] while the machine is in the ready state.
  • Page 175 “1.3.16 Setting by spec (Function code 74)” in Chapter Please contact Brother distributors for the latest information. • Always turn the machine OFF and then ON again after setting the country. Turning the power switch OFF and then ON again starts the EEPROM formatting. Time required for formatting is 5 to 30 seconds depending on the product.
  • Page 176: Installing Firmware (Sub Firmware And Main Firmware)

    1.2 Installing Firmware (Sub firmware and main firmware) 1.2.1 Checking firmware version Check whether the firmware installed on the machine is the latest version. If it is the latest version, there is no need to install the firmware. If it is not, be sure to install the firmware to the machine as described in “1.2.2 Installing firmware”.
  • Page 177: Installing Firmware

    “Brother Maintenance USB Printer”. (4) Drag and drop the required program file (ex: LZXXXX_$.djf) in the same folder onto the Brother Maintenance USB Printer icon. The file is loaded to the machine, and installing to the flash ROM starts. (5) When installing is completed, the machine restarts and returns to the ready state automatically.
  • Page 178: Setting Serial Number And Entering Adjusted Value Of Laser Unit

    1.3 Setting Serial Number and Entering Adjusted Value of Laser Unit <Operating Procedure> LCD models (1) Press the [OK] and then the [Go] while the machine is in the ready state. Then, press the [▲] four times to enter the maintenance mode. LED models (1) Follow the procedure below to enter the maintenance mode.
  • Page 179 (8) Click the [Input information] shown as (E). The Input Information screen shown on the right appears. (9) Click the [Serial No.] in the box (F). The Serial No. screen appears. (10) Enter the serial number (15 digits) of the machine in the box (J) and click the [Set] shown as (K).
  • Page 180 (17) Click the [Get information] shown as (D). The machine maintenance information appears. (18) In the maintenance information, check the Serial No. in the “Serial No.” field and the Laser Adjusted value in the “Laser Adjusted value(Position)” field. (19) Click the [Cancel] shown as (R) and close the Get Information screen.
  • Page 181: If You Replace The Low-Voltage Power Supply Pcb Assy

    2. IF YOU REPLACE THE LOW-VOLTAGE POWER SUPPLY PCB ASSY  What to do after replacement • Reset Irregular Power Supply Detection Counter of the Low-voltage Power Supply PCB  What you need to prepare None 2.1 Reset Irregular Power Supply Detection Counter of the Low-voltage Power Supply PCB LED models Refer to...
  • Page 182: If You Replace The Laser Unit

    3. IF YOU REPLACE THE LASER UNIT  What to do after replacement • Entering Adjusted Value of Laser Unit  What you need to prepare (1) One USB cable ® (2) Create a temporary folder on the C drive of the computer (Windows XP or later).
  • Page 183: Entering Adjusted Value Of Laser Unit

    3.1 Entering Adjusted Value of Laser Unit <Operating Procedure> (1) Follow the procedure below to enter the maintenance mode. LCD models LED models 1) Press the [OK] and then the [Go] 1) Disconnect the AC cord from the while the machine is in the ready socket and open the front cover.
  • Page 184 (9) Enter the last five digits of the laser serial number in the box (G), and click the [Set] shown as (H). “Set[*****]” and entered value appears on the “Adjusted Value(Laser)” line in the box (F). (“*****” indicates the laser adjusted value entered.) (10) Click the [OK] shown as (J).
  • Page 185: Maintenance Mode

    CHAPTER 5 SERVICE FUNCTIONS 1. MAINTENANCE MODE Maintenance mode is exclusively designed for checking, setting and adjusting the machine using the keys on the control panel. For LCD models, you can conduct operational checks of sensors or test printing, display the log information or error codes, and change the worker switches (WSW) by using maintenance mode functions.
  • Page 186: Method Of Entering End-User Accessible Maintenance Mode

    1.1.2 Method of entering end-user accessible maintenance mode The maintenance mode functions should only be accessed by service personnel. However, end users are allowed to use some of these functions under the guidance of service personnel over the phone. End users can only use the functions shaded in the table “1.2 List of Maintenance Mode Functions”...
  • Page 187: List Of Maintenance Mode Functions

    1.2 List of Maintenance Mode Functions 1.2.1 List of maintenance mode functions for LCD models Function Function Refer to: code Initialize EEPROM parameters 1.3.1 Transition to shipping state 1.3.2 Monochrome print quality test pattern 1.3.3 Set worker switches (WSW) 1.3.4 Print worker switch (WSW) setting data 1.3.4 Check LCD operation...
  • Page 188: List Of Maintenance Mode Functions Using [Go] (Led Models)

    1.2.2 List of maintenance mode functions using [Go] (LED models) <End-user accessible maintenance mode> No. of times [Go] is No. of times [Go] Front Refer pressed to enter is pressed to Function cover maintenance mode select function Closed 1 or 2 Test printing 1.4.1 Change USB No.
  • Page 189 No. of times [Go] is No. of times [Go] Front Refer pressed to enter is pressed to Function cover maintenance mode select function Open Maintenance printing 1.4.10 Print maintenance data and 1.4.11 frame pattern Invalid Factory use (disabled) Transition to shipping state 1.4.12 6 to 9 Invalid...
  • Page 190: Details Of Maintenance Mode Functions For Lcd Models

    1.3 Details of Maintenance Mode Functions for LCD Models 1.3.1 Initialize EEPROM parameters (Function code 01, 91) <Function> This function is used to initialize the setting values for operation parameters, user switches, and worker switches (WSW) registered in the EEPROM. Entering function code 01 initializes most EEPROM areas.
  • Page 191: Transition To Shipping State (Function Code 03)

    1.3.2 Transition to shipping state (Function code 03) The function code 03 includes following functions: Check sum information display for soft switch, Default special operation setting, and Resetting to factory shipping state. Check sum information display for soft switch is used by sales and production, not by servicemen. Servicemen only use other one function: Resetting to factory shipping state.
  • Page 192  Transfer to the shipping state <Function> This function is to transfer the machine to the shipping state when used new spare main PCB for repair, etc. When not perform this function to the new spare main PCB and leave, some software will be unavailable such as MPS applications or BrAdmin tool.
  • Page 193: Monochrome Print Quality Test Pattern (Function Code 09)

    1.3.3 Monochrome print quality test pattern (Function code 09) <Function> This function is used to print test patterns to check any missing image and print quality. <Operating Procedure> (1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 09”...
  • Page 194: Set Worker Switches (Wsw) And Print Worker Switch Setting Data (Function Code 10, 11)

    1.3.4 Set worker switches (WSW) and print worker switch setting data (Function code 10, 11) [1] Set worker switches (Function code 10) <Function> The worker switches shown in the table below can be used to set the function to satisfy various requirements.
  • Page 195 <Operating Procedure> (1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 10” on the LCD. (2) Press the [OK]. “WSW00” is displayed on the LCD, indicating that the machine is ready for worker switch number entry. (3) Press the [▲] or [▼] to display the worker switch number for which you want to change the setting on the LCD.
  • Page 196 [2] Print worker switch (WSW) setting data (Function code 11) <Function> This function is used to print the setting items of the worker switches and the set details. <Operating Procedure> (1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 11”...
  • Page 197: Check Lcd Operation (Function Code 12)

    1.3.5 Check LCD operation (Function code 12) <Function> This function is used to check that the LCD on the control panel is operating normally. <Operating Procedure> (1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 12”...
  • Page 198: Check Control Panel Key Operation (Function Code 13)

    1.3.6 Check control panel key operation (Function code 13) <Function> This function is used to check that keys on the control panel are operating normally. <Operating Procedure> (1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 13”...
  • Page 199: Display Software Version (Function Code 25)

    1.3.7 Display software version (Function code 25) <Function> This function is used to check the version information of the firmwares and programs, or check sum information. <Operating Procedure> (1) Press the [▲] or [▼] in the initial state of maintenance mode to display "MAINTENANCE 25"...
  • Page 200: Check Sensor Operation (Function Code 32)

    1.3.8 Check sensor operation (Function code 32) <Function> This function is used to check that sensors are operating normally. <Operating Procedure> (1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 32” on the LCD, and press the [OK]. “CVRCPONT********” is displayed on the LCD. The table below summarizes the displays on the LCD, sensor names and detection status.
  • Page 201: Display Lan Connection Status (Function Code 33)

     Location of sensors Toner sensor PCB ASSY New toner sensor PCB ASSY *1 *2 Relay PCB ASSY Eject sensor PCB ASSY Registration front sensor Back cover/duplex tray sensor Registration rear sensor Front cover sensor Paper feed sensor PCB ASSY Registration clutch Toner box solenoid Toner box new PCB ASSY...
  • Page 202: Change Usb No. Return Value / Adjust Left-End Print Position

    1.3.10 Change USB No. return value / Adjust left-end print position / Adjust upper-end print position / Change ON/OFF setting for lower case compensation / Change ON/OFF setting for fixation strength improvement (Function code 45)  Change USB No. return value <Function>...
  • Page 203  Adjust left-end print position <Function> In the event that the left-end print start position deviates, use this function to adjust the position left and right. The adjustable range is -100 to 750 (1 unit = 0.084 mm = 300 dpi). (Shifted to left when the value is negative) <Operating Procedure>...
  • Page 204: Adjust Upper-End Print Position

     Adjust upper-end print position <Function> In the event that the upper-end print start position deviates, use this function to adjust the position up and down. Adjustable range is -50 to 50 (1 unit = 0.084 mm = 300 dpi). (Shifted down when the value is negative) <Operating Procedure>...
  • Page 205: Change On/Off Setting For Lower Case Compensation

     Change ON/OFF setting for lower case compensation <Function> This function is used to expand and compensate the white lower case which is easily collapsed by the pattern matching. <Operating Procedure> (1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 45”...
  • Page 206: Check Toner Cartridge (Models With Cartridge Sensor Only) (Function Code 57)

    1.3.11 Check toner cartridge (Models with cartridge sensor only) (Function code 57) <Function> This function is used to acquire the toner cartridge data and check whether the country code is right and it is compatible with the machine and capacity. Also checks the toner cartridge version and the continuity (contact).
  • Page 207  Version information check (1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 57” on the LCD, and press the [OK]. “IC_ACT ALL” is displayed on the LCD. (2) Press the [▲] or [▼] to display “5” on the LCD, and press the [OK]. “IC_VER BLACK” is displayed on the LCD.
  • Page 208: Continuous Print Test (Function Code 67)

    1.3.12 Continuous print test (Function code 67) <Function> This function is used to conduct paper feed and eject tests while printing patterns. <Operating Procedure> (1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 67”...
  • Page 209 <Paper size> Description SELECT:A4 SELECT:LETTER Letter SELECT:ISOB5 ISO B5 SELECT:JISB5 JIS B5 SELECT:A5 SELECT:A5L SELECT:JISB6 JIS B6 SELECT:A6 SELECT:EXECUTE Executive size SELECT:LEGAL Legal size SELECT:FOLIO Folio size SELECT:HAGAKI Postcard size <Print specification> Description SELECT:PLAIN Plain paper SELECT:THIN Plain paper (thin) SELECT:THICK Plain paper (thick) SELECT:THICKER...
  • Page 210 <Print page> Description SELECT:1PAGE 1-page printing SELECT:CONTINUE Continuous printing SELECT:JOB Job Intermittent printing per job Selectable only when the printing pattern is set to “K1%” or “K5%”, and the print type is not set to the manual feed slot. <Number of pages per job> (Only for intermittent pattern printing) Description SELECT:1P/JOB Prints 1 page per job...
  • Page 211 K 100% K 1% W 100% K 5% Lattice Total Fig. 5-6 5-27 Confidential...
  • Page 212: Print Frame Pattern (Single-Side Printing) (Function Code 69)

    1.3.13 Print frame pattern (single-side printing) (Function code 69) <Function> This function is used to print the frame pattern on a single side of the paper to check for printing flaws and omission. <Operating Procedure> (1) Set the paper specified in the default paper settings (A4 or Letter) to the paper tray. (2) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 69”...
  • Page 213: Print Frame Pattern (Duplex Printing) (Function Code 70)

    1.3.14 Print frame pattern (duplex printing) (Function code 70) <Function> This function is used to print the frame pattern on both sides of the paper to check for printing flaws and omission. <Operating Procedure> (1) Set the paper specified in the default paper settings (A4 or Letter) to the paper tray. (2) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 70”...
  • Page 214: Print Test Pattern (Function Code 71)

    1.3.15 Print test pattern (Function code 71) <Function> This function is used to print the test pattern to check whether the develop roller or exposure drum is dirty or damaged. <Operating Procedure> (1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 71”...
  • Page 215 <Print specification> Description SELECT:PLAIN Plain paper SELECT:THICK Plain paper (thick) SELECT:THIN Plain paper (thin) SELECT:THICKER Plain paper (thicker) SELECT:RECYCLED Recycled paper SELECT:BOND Bond paper SELECT:LABEL Label SELECT:ENVELOPE Envelope SELECT:ENVTHIN Envelope (thin) SELECT:ENVTHICK Envelope (thick) SELECT:GLOSSY Glossy paper SELECT:HAGAKI Postcard <Print type> Description SELECT:SX Single-side printing from paper tray...
  • Page 216  Test pattern Fig. 5-9 5-32 Confidential...
  • Page 217: Setting By Spec (Function Code 74)

    [Go] when the desired value is shown on the LCD. The new setting is saved, and “PARAMETER INIT” is displayed on the LCD. The machine then returns to the initial state of maintenance mode.  Setting by spec code list MODEL Country Code Country Code (Detail) HL-2290 China 0020 HL-2295D China 0420 HL-2590DN China...
  • Page 218 MODEL Country Code Country Code (Detail) HL-L2331D China 0245 HL-L2335D China 0321 HL-L2336D China 0329 HL-L2350DW China 0101 Germany 0103 U.S.A 0101 HL-L2350DWR China 0148 HL-L2351DW China 0145 HL-L2352DW China 0150 HL-L2357DW China 0203 HL-L2370DN China 0303 Germany 0303 HL-L2370DNR China 0348 HL-L2370DW...
  • Page 219 • If there is no entry for one minute or longer, the machine returns to the initial state of maintenance mode automatically, regardless of the display status. • The spec code list above is current as of October 2017. Please contact Brother distributors for the latest information. 5-35 Confidential...
  • Page 220: Print Maintenance Information (Function Code 77)

    1.3.17 Print maintenance information (Function code 77) <Function> This function is used to print the maintenance information, such as remaining amount of consumables, the number of replacements, and counter information. <Operating Procedure> (1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 77”...
  • Page 221 Model name 19 Accumulated average coverage Serial number 20 Average coverage by the current toner cartridge Model code 21 Average coverage by the previous toner cartridge Spec code 22 Latest job average coverage Switch check sum (factory use) 23 Drum page count / Rotations of the drum Main firmware version 24 Total rotations of the develop roller (currently use / previously used toner...
  • Page 222: Check Fan Operation (Function Code 78)

    1.3.18 Check fan operation (Function code 78) <Function> This function is used to check that the fan is operating normally. Switch the setting among rotation speed 100%, 50%, and OFF. Name Description Emits the heat in the fuser unit. <Operating Procedure> (1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 78”...
  • Page 223: Display Machine Log Information (Function Code 80)

    1.3.19 Display machine log information (Function code 80) <Function> This function is used to display the log information on the LCD. <Operating Procedure> (1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 80” on the LCD, and press the [OK]. “MACERR_01:****” is displayed on the LCD. (2) Pressing the [Go] displays the next item.
  • Page 224 Description ENVTYP:00000000 Total printed pages of envelope, thick envelope, and thin envelope LABEL:00000000 Printed labels HAGAKI:00000000 Printed postcards TTL_JAM:00000000 Total paper jams that have occurred MP_JAM:00000 Paper jams that have occurred in the MP tray (MP models only) TR1_JAM:00000000 Paper jams that have occurred in paper tray IN_JAM:00000000 Paper jams that have occurred in the machine RE_JAM:00000000...
  • Page 225: Display Machine Error Code (Function Code 82)

    1.3.20 Display machine error code (Function code 82) <Function> This function is used to display the latest error code on the LCD. <Operating Procedure> (1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE 82”...
  • Page 226: Details Of Maintenance Mode Functions Using [Go] (Led Models)

    1.4 Details of Maintenance Mode Functions Using [Go] (LED models)  End-user accessible maintenance mode functions 1.4.1 Test printing This function is used to print a test pattern (print quality check sheet) to check any missing image and print quality. <Operating Procedure>...
  • Page 227: Change Usb No. Return Value

    1.4.2 Change USB No. return value ® When the operating system (OS) installed on the computer is Windows Vista , and the machine is connected to this computer using USB2.0FULL, the OS may not be able to obtain the USB device serial number depending on the computer and USB device. If the serial number cannot be obtained, the number of devices increases each time the device is connected to the computer.
  • Page 228: Engine Error Ignore Mode

    1.4.4 Engine error ignore mode When an engine error occurs and the machine cannot be recovered unless the main PCB is replaced, using this function enables the machine to start, ignoring the engine error, to retrieve the EEPROM data. <Operating Procedure> (1) Check that the front cover is closed.
  • Page 229: Check Sensor Operation

     Maintenance mode functions for service personnel 1.4.5 Check sensor operation This function is used to check whether the sensors, electromagnetic clutch, and motors are operating normally. While sensor operation is being checked, the Ready LED flashes once each time the sensor or switch status changes from ON to OFF or OFF to ON. <Operating Procedure>...
  • Page 230: Print Continuous Lattice Pattern

    1.4.6 Print continuous lattice pattern This function is used to print a lattice pattern continuously. <Operating Procedure> (1) Open the front cover while the power switch is turned OFF. (2) Press and hold the [Go], and turn ON the power switch. The Toner, Drum, and Paper LEDs light.
  • Page 231: Change On/Off Setting For Duplex Printing

    1.4.8 Change ON/OFF setting for duplex printing This function allows you to change the duplex printing setting to ON or OFF. The setting applied is reversed each time this mode is entered. The setting currently applied can be determined by pressing the [Go] seven times and checking the LED status after several seconds.
  • Page 232: Maintenance Printing

    1.4.10 Maintenance printing This function is used to print maintenance information, such as the remaining amount of consumables, the number of replacements, and counter information. (The same function as that described in “1.3.17 Print maintenance information (Function code 77)” for LCD models) <Operating Procedure>...
  • Page 233: Print Maintenance Data And Frame Pattern

    1.4.11 Print maintenance data and frame pattern This function is used to print maintenance data on the first side and print the frame pattern on the second side in duplex printing mode. Short Bind is automatically applied to duplex printing in this mode. When printing is completed, the setting applied prior to Short Bind is restored.
  • Page 234: Resetting To Factory Shipping State

    1.4.12 Resetting to factory shipping state This function returns the machine to the factory shipping state when a new supply main PCB is used for an occasion like repair. If this function is ignored when a new supply main PCB is used, software like MPS application and BrAdmin tool are not operable.
  • Page 235: Reset Irregular Power Supply Detection Counter Of Low-Voltage Power Supply Pcb

    1.4.14 Reset irregular power supply detection counter of low-voltage power supply PCB This function is used to reset the number of irregular power supply errors in the main PCB after replacing the low-voltage power supply PCB. <Operating Procedure> (1) Open the front cover while the power switch is turned OFF. (2) Press and hold the [Go], and turn ON the power switch.
  • Page 236: Other Service Functions

    2. OTHER SERVICE FUNCTIONS 2.1 Print Printer Settings <Function> Printer Settings can be printed. The title, model name and serial number are printed on all pages. For LCD models, Network Configuration, Wireless LAN report, Test print, Demo Print, and Font List can be printed besides Print settings. Also, serial number, firmware version, total printed pages, and usage of toner can be displayed.
  • Page 237 Printing operable from LCD models Description Printer settings Prints setting list. Also prints various machine settings. Network Configuration Prints Wired / Wireless LAN settings. WLAN report Prints wireless LAN connection status, measures for connection errors, and network settings. Test print Prints test pattern.
  • Page 238: Drum Cleaning

    2.2 Drum Cleaning <Function> Attach the drum cleaning sheet kit (SP) (D011B4001) on the drum unit, and drum cleaning starts. <Operating Procedure> The insertion supplied with the drum cleaning sheet kit (SP) (D011B4001) is published on the next page. Note: •...
  • Page 239 HL-L2375DW HL-L2375DWR Caution Depressed part unit after the drum cleaning. Caution Paper jam error appears if the drum cleaning sheet is not HL-L2376DW HL-L2385DW removed. HL-L2386DW Group D HL-2290 HL-2295D HL-B2000D HL-L2310D HL-L2310DR HL-L2312D D010SU001 Ready HL-L2330D HL-L2331D HL-L2335D HL-L2336D...
  • Page 240: Resetting Drum Counter

    2.3 Resetting Drum Counter <Function> This function resets the drum counter when replacing it. <Operating Procedure> LCD models LED models (1) Press the [OK] and [ ] (1) Open the front cover. simultaneously while the machine is in Paper LED lights. the ready state.
  • Page 241: Change Active/Inactive Setting For Auto Power Down Mode (Led Models Only)

    2.5 Change Active/Inactive Setting for Auto Power Down Mode (LED models only) <Function> This function is used to change the active/inactive setting for auto power down mode. Time required to start the auto power down differs from one country to another but it's not changeable in this function.
  • Page 242: Change Continue/Stop Mode For Toner Cartridge (Led Models Only)

    2.8 Change Continue/Stop Mode for Toner Cartridge (LED models only) <Function> This function is used to change the toner setting to continuous printing mode which allows you to use the current toner cartridge even the LED is prompting toner replacement. <Operating Procedure>...
  • Page 243: Chapter 6 Wiring Diagram

    CHAPTER 6 WIRING DIAGRAM 1. WIRING DIAGRAM PANEL PCB(1byte LCD ) Main PCB STRB 10 VDD_RHS VDD_RHS PNL11_SDIN PNLRESP PNL_RST PNL_TXD PNL11_SDOUT PNL_CMD PNL_RXD PNL11_PCLK PNL_CLK PNL_TE 3.3V 3.3V To HYPNOS ON/OFF Key ON/OFF Key VG 3 V0 2 XV0 1 Matrix (WLAN) (POWER)
  • Page 244: Chapter 7 Periodical Maintenance

    CHAPTER 7 PERIODICAL MAINTENANCE 1. PERIODICAL REPLACEMENT PARTS There are no parts to be replaced periodically. Confidential...
  • Page 245: Appendix 1 Serial Numbering System

    APPENDIX 1 SERIAL NUMBERING SYSTEM  Serial number labels on the printer Serial number A 7 N 1 1 1 1 0 1 Model number Serial number (6-digit) Manufacturing factory No. Year of manufacture * : 201* (e.g., 7 : 2017) Month of manufacture A: January E: May...
  • Page 246: Appendix 2 Deleting User Setting Information

    APPENDIX 2 DELETING USER SETTING INFORMATION The user setting information for the machine is stored in the main PCB. You can return this to the default settings by following the procedure below. <Operating Procedure> LED models LCD models (1) Press and hold the [Go] with the front (1) Press the [▲] or [▼] to display “Initial cover of the machine closed, and turn Setup”...
  • Page 247: Appendix 3 Installing The Maintenance Printer Driver

    Maintenance USB Printer driver has been already installed to your computer according to this procedure, skip this section. • Before proceeding to the procedure given below, make sure that the Brother Maintenance USB Printer driver is stored in your computer.
  • Page 248 The following screen is displayed during installation. (4) Wait for the following screen to appear and click [Finish]. (5) Plug the AC cord of the machine into an electrical outlet. (6) Enter the maintenance mode. (Refer to “1.1 How to Enter Maintenance Mode” in Chapter (7) Connect the machine to your computer using a USB cable and the installation will be performed automatically.