Page 1: Service Manual
Brother Color Laser Printer SERVICE MANUAL MODEL: HL-4000CN Read this manual thoroughly before maintenance work. Keep this manual in a convenient place for quick and easy reference at all times. January 2002 SM-PRN027...
Page 2 Specifications are subject to change without notice. Trademarks: The brother logo is a registered trademark of Brother Industries, Ltd. Apple, the Apple Logo, and Macintosh are trademarks, registered in the United States and other countries, and True Type is a trademark of Apple computer, Inc.
Page 3 PREFACE This service manual contains basic information required for after-sales service of the color laser printer (here-in-after referred to as "this machine" or "the printer"). This information is vital to the service technician to maintain the high printing quality and performance of the printer. This service manual covers the HL-4000CN color laser printer.
Page 4: Table Of Contents
CONTENTS CHAPTER I SPECIFICATIONS ............I-1 1. PRODUCT NAME .................... I-1 2. DIMENSIONS / WEIGHT (MAIN UNIT)............I-1 3. SPACE REQUIREMENTS ................I-1 4. PRINTER SYSTEM CONFIGURATION ............I-2 4.1. Outline of the Printer ......................I-2 4.2. IOT Function Outline......................I-3 4.3. ESS Standard Configuration....................I-4 5.
Page 5 11. PAGE OUTPUT SEQUENCE CONTROL FUNCTIONS ......I-14 11.1 Stacking ..........................I-14 11.2 Collating ..........................I-14 12. SEPARATOR ....................I-15 12.1 Banner Sheet ........................I-15 13. JOB CONTROL .................... I-15 13.1 Print Abortion ........................I-15 13.2 Forced Ejection ........................I-15 13.3 Job Timeout ........................I-15 13.4 Job Recovery ........................I-15 14.
Page 6 20.3 Duplex..........................I-22 20.4 Handling of Other Paper ....................I-22 20.5 Summary of Prohibited Conditions ..................I-22 21. OPERATING SUPPLY VOLTAGE ............... I-23 22. RATED POWER CONSUMPTION ............... I-23 23. NOISE ......................I-24 24. FIRMWARE UPDATE FUNCTION ............... I-24 25. TOOLS AND SERVICE CONSUMABLES............ I-24 25.1 Tools ..........................I-24 25.2 Service Consumables ......................I-24...
Page 7 4. PAPER TRANSFER ..................III-22 4.1 Paper Transfer Route (without option)................III-22 4.2 Layout of Paper Transfer Route..................III-23 5. FUNCTIONS OF MAJOR FUNCTIONAL COMPONENTS......III-24 5.1 Paper Cassette ........................III-25 5.2 Paper Feeder ........................III-26 5.3 Housing ASSY Retard .......................III-28 5.4 Front ASSY In ........................III-29 5.5 Chute ASSY Out ........................III-30 5.6 Chute ASSY Exit........................III-32 5.7 Transfer Roll Cartridge ASSY &...
Page 8 CHAPTER V TROUBLESHOOTING ..........V-1 1. PREFACE ....................... V-1 1.1 Troubleshooting Procedure....................V-1 1.2 Note on Troubleshooting...................... V-1 2. LEVEL 1 TROUBLESHOOTING ..............V-3 2.1 Level 1 FIP........................... V-3 3. LEVEL 2 TROUBLESHOOTING ..............V-4 3.1 Fail Code List ........................V-4 3.2 Fail FIP..........................
Page 9 11. IMAGE QUALITY FIP .................. V-74 11.1 Notes on Image Quality Trouble Check ................V-74 11.2 Basic Rule of Image Quality Adjustment................V-74 11.3 Troubleshooting Table by Trouble Phenomena............... V-75 CHAPTER VI DIAGRAMS.............. VI-1 1.PREFACE ....................... VI-1 1.1 How to Use the BSD ......................VI-1 1.2 Explanations of Symbols.....................
Page 10 United States. The label shown on the back of the printer indicates compliance with the FDA regulations and must be attached to laser products marketed in the United States. MANUFACTURED: BROTHER INDUSTRIES, LTD. 15-1 Naeshiro-cho, Mizuho-ku, Nagoya, 467-8561 Japan This product complies with FDA radiation performance standards, 21 CFR Subchapter J.
Page 11: Internal Laser Radiation
IEC 60825 SPECIFICATION (FOR 220-240 V MODEL ONLY) This printer is a Class 1 laser product as defined in IEC 60825 specifications. The label shown below is attached in countries where required. CLASS 1LASER PRODUCT APPAREIL Å LASER DE CLASSE 1 LASER KLASSE 1 PRODUKT This printer has a Class 3B Laser Diode which emits invisible laser radiation in the Scanner Unit.
Page 12 SAFETY To prevent possible accidents during maintenance operation, you should observe strictly the "Warning" and "Caution" information in this manual. Dangerous operations and operations out of range of this manual should be absolutely avoided. Generally various processes not covered by this manual may be required in actual operation, which should be performed carefully always giving attention to safety.
Page 13 Power Source Keep the power supply off during maintenance operation to prevent electric shock, burns and other damages. Keep the power plug disconnected during the maintenance operation. If the power supply should be kept connected for measurement of voltage or other similar reasons, sufficient care should be given to prevent electric shock, by following the procedures of this manual.
Page 14 High-temperature Units When servicing high-temperature units (securing unit, etc.), be sure to turn them OFF to prevent burns, injuries and other troubles, remove the power plug and start service processes after they have cooled down enough. WARNING Immediately after completion of operation, they are still hot. Start services after more than 40 minutes.
Page 15 Warning/Caution Labels Warning labels and caution labels are attached to this laser printer to prevent accidents check those labels for their peeling or stain when servicing the printer. < Caution label for high-temperature units > Unpacking the Printer WARNING The printer must be carried horizontally with two or more persons. CAUTION Extreme care must be taken to avoid personal injuries.
Page 16 ACRONYMS In this manual, the manual specific acronyms are used in addition to the generally used ones. The table below contains typical acronyms that are used throughout this manual. Automatic Density Control Analog Ground AUX. Auxiliary Black and White Bias Charge Roll CART.
Page 17 Service call procedures Notes Before Work 1.1 Safety notes To prevent an accident during maintenance, follow warnings and precautions strictly. Avoid dangerous work. 1. Power supply To prevent an electric shock, burn, or injury, turn off the power and unplug the power cable before maintenance work.
Page 18 1.2 Other notes Do maintenance work correctly and efficiently with the following notes in mind: 1. Reference materials Read the related technical information (SB, FTI, FTO and so on) well and do maintenance work systematically. 2. Disassembling Before removing parts for disassembling, check the normal mounting status in advance.
Page 19 Workflow in the Field < Initial Actions > 1. Question the Customer for details about the system malfunction. 2. Note down the meter count. 3. Inspect the rejected print and determine the machine condition. 4. Check the Machine Log Book. <...
Page 20 Trim Activity Trim activities for HL-4000CN should be made within every SM/UM, mainly for maintaining the machine performance. There is no service call performed only for the trim activity. 3.1 Trim activity procedure 1. Check the overall operation before performing the trim activity. Print any Internal Test Pattern to output three patterns: all colors of 20 % each, halftone and grid.
Page 21 3.3 Trim checklist C: Check and if necessary clean, replace, or replenish. A: Always check and clean. R: Replace at specified intervals. * See page V-51 for the test pattern output method. Work item Each 100K Rep & Description time Adj No.
Page 22: Chapter Ispecifications
CHAPTER I SPECIFICATIONS...
Page 23 CONTENTS CHAPTER I SPECIFICATIONS ............I-1 1. PRODUCT NAME .................... I-1 2. DIMENSIONS / WEIGHT (MAIN UNIT) ............I-1 3. SPACE REQUIREMENTS ................I-1 4. PRINTER SYSTEM CONFIGURATION ............I-2 4.1 Outline of the Printer ......................I-2 4.2 IOT Function Outline......................I-3 4.3 ESS Standard Configuration ....................
Page 24 10.5 Poster..........................I-14 10.6 Booklet Printing ........................I-14 11. PAGE OUTPUT SEQUENCE CONTROL FUNCTIONS......I-14 11.1 Stacking ..........................I-14 11.2 Collating ..........................I-14 12. SEPARATOR....................I-15 12.1 Banner Sheet ........................I-15 13. JOB CONTROL.................... I-15 13.1 Print Abortion ........................I-15 13.2 Forced Ejection ........................
Page 25 19.4 BRAdmin Pro ........................I-20 20. PAPER HANDLING ..................I-21 20.1 Paper Feed ........................I-21 20.2 Output Tray ........................I-22 20.3 Duplex ..........................I-22 20.4 Handling of Other Paper ....................I-22 20.5 Summary of Prohibited Conditions ..................I-22 21. OPERATING SUPPLY VOLTAGE............... I-23 22.
Page 26: Product Name
CHAPTER I SPECIFICATIONS PRODUCT NAME Product Name Product Code Model DIMENSIONS / WEIGHT (MAIN UNIT) Width (mm) Depth (mm) Height (mm) Weight (kg) 590* 35.5kg or less (with CRU) *: with the manual tray folded SPACE REQUIREMENTS The printer has vents on the sides and the rear. Install the printer with clearances of 150 cm on the right, 100 cm on the left, and 200 cm on the rear.
Page 27: Printer System Configuration
PRINTER SYSTEM CONFIGURATION Outline of the Printer 1) Host computer The target host is a personal computer (PC98, IBM PC-AT compatible, or Macintosh) connected directly and also through a network. 2) ESS The ESS interprets print information (control code data, character code data, graphics data, and image data) sent from the host computer into video data and sends it to the IOT.
Page 28: Iot Function Outline
IOT Function Outline Configuration Contents Recording section - Color 16PPM, Monochrome 16PPM - 600dpi (standard speed), 1200dpi (half speed) Recording System - OPC drum, 4-tandem cartridges , electro-photographic system using intermediate transfer rolls - 2-component Developer - Chemical toner (black, yellow, magenta, cyan) Toner - Semiconductor laser, simultaneous scanning by 4 beams Exposure System...
Page 29: Ess Standard Configuration
ESS Standard Configuration Item Contents QED RM5261A 350MHz Memory RAM: Standard 64MB, 320MB max One 144pin SO-DIMM slot installed ROM: 4MB Flash ROM (On Board) (for program) 8MB Mask ROM (On Board) (for fonts) HDD: For electronial sorting: 10GB or more IDE HDD (optional) External Interface - Parallel connection interface : IEEE1284-compliant (compatible, nibble, ECP)
Page 30: Optional Products
OPTIONAL PRODUCTS Product Name Product Code Remarks 2 Tray Module LT-40CL Hard Disk HD-40CL...
Page 31: System Characteristics
SYSTEM CHARACTERISTICS Operation Modes The printer has the following modes: 1) Running Mode: The printer is running and recording. Held at the operating temperature Fusing system Rotating at the running speed Exposure system Operating Recording system Rotating at high speed Fuser fan Rotating at high speed Rear fan...
Page 32: Throughput
Throughput Throughput is the time from when a print instruction is issued from the printer driver until when the last print is output to the output tray, excluding the process control time. (OS: Win98, Measuring chart: JEIDA J11, Paper source: Tray 1) Paper Paper Type Color...
Page 33: Warm-Up Time
Warm-up Time Even/state Time before Ready state Condition At power on 30 sec. max Temperature: 22 C Humidity: 55% When work up from 30 sec. max Input power: 100/120/220 VAC Lower Power mode PRINT FUNCTION Image Area Size Guaranteed image area 500-sheet universal tray Area excluding a 4-mm margin each from the right.
Page 34 Type Font MicroType New Century Schoolbook Rm, New Century Schoolbook It, New Century Schoolbook Bd, New Century Schoolbook Bd It MicroType Palatino, Palatino It, Palatino Bd, Palatino Bd It MicroType Time Roman, Time Italic, Time Bold, Time Bold Italic MicroType Zapf Chancery Medium IT, Zapf Dingbats MicroType Symbol, SymbolPS <PS3>...
Page 35 GillSans-LightItalic GillSansCE-Bold GillSansCE-BoldCondensed GillSansCE-BoldItalic GillSansCE-Condensed GillSansCE-ExtraBold GillSansCE-Italic GillSansCE-Light GillSansCE-LightItalic GillSansCE-Roman Goudy Goudy-Bold Goudy-BoldItalic Goudy-ExtraBold Goudy-Italic Helvetica Helvetica-Bold Helvetica-BoldOblique Helvetica-Condensed Helvetica-Condensed-Bold Helvetica-Condensed- BoldObl Helvetica-Condensed- Helvetica-Narrow Helvetica-Narrow-Bold Oblique Helvetica-Narrow- Helvetica-Narrow-Oblique Helvetica-Oblique BoldOblique HelveticaCE HelveticaCE-Bold HelveticaCE-BoldOblique HelveticaCE-Cond HelveticaCE-CondBold HelveticaCE-CondBoldObl HelveticaCE-CondObl HelveticaCE-Narrow HelveticaCE-NarrowBold HelveticaCE- HelveticaCE-NarrowOblique HelveticaCE-Oblique NarrowBoldOblique...
Page 36: True Type Fonts
Tekton Times-Bold Times-BoldItalic Times-Italic Times-Roman TimesCE-Bold TimesCE-BoldItalic TimesCE-Italic TimesCE-Roman TimesNewRomanCE TimesNewRomanCE-Bold TimesNewRomanCE- BoldItalic TimesNewRomanCE-Italic TimesNewRomanPS- TimesNewRomanPS-BoldMT BoldItalicMT TimesNewRomanPS- TimesNewRomanPSMT Univers ItalicMT Univers-Bold Univers-BoldExt Univers-BoldExtObl Univers-BoldOblique Univers-Condensed Univers-CondensedBold Univers- Univers-CondensedOblique Univers-Extended CondensedBoldOblique Univers-ExtendedObl Univers-Light Univers-LightOblique Univers-Oblique UniversCE-Bold UniversCE-BoldExt UniversCE-BoldExtObl UniversCE-BoldOblique UniversCE-Condensed UniversCE-CondensedBold UniversCE- UniversCE-...
Page 37: Image Processing Functions
IMAGE PROCESSING FUNCTIONS Color/Monochrome Specification The user can select Color, Monochrome, or Auto. If Auto is selected, the printer automatically distinguishes each page and prints the page data in colors and monochrome. Paper Type Selection The user can select Plain paper 1/Plain paper 2, Transparency, Thick paper 1/Thick paper 2, Labels paper, Glossy paper, Postcard, Envelope, Thick paper (Back), Glossy paper (Back), Postcard (Back), or Envelope (Back).
Page 38: Profile Specification
2) All display Mode Resolution Use and processing 600dpi This mode is suitable for printing OHP transparencies. transparency The screen and color conversion for a small number of lines reduce IOT defects and make this mode suitable for printing on transparencies. 600dpi This mode is suitable for color matching with the display readjusted...
Page 39: Image Addition Function
IMAGE ADDITION FUNCTION Watermark A user-specified or routine character string can be printed as a watermark. 10. PAGE LAYOUT FUNCTIONS 10.1 Reverse Print The generation of a 180-degree rotated image can be selected. This function is used if a desired result cannot be obtained without rotating a generated image because the direction of transport is determined (ex.
Page 40: 12. Separator
12. SEPARATOR 12.1 Banner Sheet A banner sheet can be inserted at the beginning or end of a job. The document name, port name, or other is printed in monochrome. However, the MAC driver does not support the banner at the end. 13.
Page 41: Job Log Function
14.4 Job Log Function This function can hold and print up to 22 job logs. Log data can also be printed immediately from the panel or automatically when the log count has reached the maximum limit. The log contents are as follows: Job submission date and time Input interface (Centronics, lpd, etc) Data type (XPL)
Page 42: 16. Host Interface
16. HOST INTERFACE 16.1 Client Hardware Hardware Conditions of guarantee PC-AT compatible A model where Windows 95/98/ME, 2000/XP, or NT4.0 is (DOS/V) guaranteed to run PC98 Series A model sold in November 1993 or later with a two-way parallel interface where Windows 95/98/ME, 2000/XP, or NT4.0 is guaranteed to run Macintosh A model where MAC OS 8.1 to 9.1,OSX 10.1 is guaranteed to run...
Page 43: Printing Protocols
18.2 Printing Protocols The standard printing protocols are LPD, Port9100, IPP, FTP and the optional ones are SMB, NetWare, and EtherTalk. Standard Supported Transport Supported OS Protocol Session TCP/IP Win95/98/Me WinNT4.0 Win2000 (usually lprand Sizeless lpr) Port9100 TCP/IP Win95/98/Me Win2000/XP TCP/IP Windows Me, Win2000 FTP (only for...
Page 44: Management Protocols
18.3 Management Protocols The printer supports SNMP and http ((Web base management) as the management protocols. DHCP is also supported as automatic IP address setting. Standard Supported Transport Support Protocol SNMP UDP/IP [Supported MIB] MIB-II (RFC1213) IPX (option) Host Resources MIB (RFC1514) Printer MIB (RFC1759) XCMI Communication Config MIB (V2.4) XCMI Job Monitoring MIB (V2.4)
Page 45: Usb
18.4 The printer conforms to USB Ver.1.1. Connector 4-pin, B connector Supported OS Windows 98/ME, Windows 2000/XP Mac OS 8.6 to 9.1 Preinstalled version * Windows version: Post Launch 19. UTILITY SOFTWARE 19.1 Printer Drivers/Installers Printer drivers for Windows 95/98/ME, Windows NT4.0, Windows 2000, and Mac OS 8.1 to 9.1 are prepared.
Page 46: 20. Paper Handling
20. PAPER HANDLING 20.1 Paper Feed Tray 1 The 500-sheet universal tray can be mounted. Trays 2 and 3 (Option) The 500-sheet universal tray can be mounted each. Manual feed tray (MSI) Supported size A4, B5, A5, Letter, Legal 14, Postcard and User-defined Paper capacity 100 sheets or 10 mm thick or less for standard paper Paper type...
Page 47: Output Tray
20.2 Output Tray The printer has a face-down tray at the upper part. Supported paper size All paper sizes that can be handled by the printer Paper capacity 250 sheets or more for standard paper 20.3 Duplex Duplex path Supported size A4, B5, A5, Letter, Legal 14, and User-defined Paper type Plain paper 1/Plain paper 2...
Page 48: 21. Operating Supply Voltage
Paper type limitation Selected paper type 500 Universal Manual Tray Duplex Plain paper 1 Plain paper 2 Transparency Thick paper 1 Thick paper 2 Labels paper Glossy paper Postcard Envelope Back (thick, glossy, postcard, envelop) y: possible n: impossible 21. OPERATING SUPPLY VOLTAGE <115/120V>...
Page 49: Noise
NOISE Standby: 35 dB (A) max Printing: Base engine Optional feeder Cassette run MSI run Cassette run 52.0 dB(A) 54.0 dB(A) 54.0 dB(A) Standard 600dpi High definition/gloss 54.0 dB(A) 55.0 dB(A) 55.0 dB(A) (Half speed) 24. FIRMWARE UPDATE FUNCTION The user can rewrite (update) the ESS firmware and Net extension card formware. Update item Via IEEE1284 Via network (ftp)
Page 50: 27. Software Related Information
27. SOFTWARE RELATED INFORMATION 27.1 Menu Tree (User Mode) Mode 1 Power Save Time 3 min. *(0-60) 1:System Menu Error Alarm YES*, NO 30sec.*(5-300, OFF) Job Timeout English*,French,Italian,German Panel Language Spanish,Dutch Auto Log Pr nt YES*, NO ID Print OFF*,Upper Left, Upper Right Lower Left, Lower Right Text Print NO*, YES...
Page 51 Enabled*, Disabled 3:Parallel Adobe Protocol TBCP*, Standard, BCP Printer Settings 4:Report/List Panel Settings PCL6 Font List Log Print PS Font List Demo Page Auto*, 10Base/Half, 10Base/Full, 5:Network Ethernet 100Base/Half, 100Base/Full Setup IP Address TCP/IP DHCP*, Panel IP Address Subnet Mask Gateway Address IPX Frame Type Auto*, 802.3, 802.2, SNAP, Ethernet-11...
Page 52: Chapter Ii Installation
CHAPTER II INSTALLATION...
Page 53 CONTENTS CHAPTER II INSTALLATION............II-1 1. INSTALLATION PROCEDURE............... II-1 1.1 Checking the Packaged Items ....................II-2 1.2 Removing the Tapes from the Printer................... II-3 1.3 Removing the Paper Tray Protective Materials ..............II-4 1.4 Mounting the Print Head Cartridge..................II-6 1.5 Mounting the Toner Cartridges ..................... II-9 1.6 Mounting the Transfer Roll Cartridge..................
Page 54: Installation Procedure
CHAPTER II INSTALLATION INSTALLATION PROCEDURE Install the printer as follows: Checking the Packaged Items Removing the Tapes from the Printer Removing the Paper Tray Protective Materials Mounting the Print Head Cartridge Mounting the Toner Cartridges Mounting the Transfer Roll Cartridges Loading Paper Connecting the Power Cable Correcting the Color Registrations...
Page 55: Checking The Packaged Items
Checking the Packaged Items The printer package contains the items shown below. Before starting installation, make sure that no items are missing. Note: Keep the packaging materials if a future long-distance move of the printer is anticipated. Printer (base engine) Print head cartridge Fig.2-1 Fig.2-2...
Page 56: Removing The Tapes From The Printer
Removing the Tapes from the Printer The printer taken out of the box is taped at eight positions. Remove all the tapes by referencing the figure below. < Right side > Fig.2-5 < Left side > Fig.2-6 < Rear side > Fig.2-7 II-3...
Page 57: Removing The Paper Tray Protective Materials
Removing the Paper Tray Protective Materials Each tray of this printer has two protective materials to suppress the influences of vibrations and shocks during move. Remove the protective materials as explained next. Note: The protective materials are necessary for the long-distance move of the printer. Be sure not to lose them.
Page 58 Take the protective material (made of cardboard) out of the paper tray. Note: Keep the protective material if a future move of the printer is anticipated. Fig.2-11 Hold the paper tray by both hands and slide it into the printer along the slot. Fig.2-12 Push the tray deep into to the printer.
Page 59: Mounting The Print Head Cartridge
Mounting the Print Head Cartridge Mount the print head cartridge as explained next. Fig.2-14 Lift the A button ((1)) and open the front cover ((2)). Fig.2-15 Open the delivery section cover. Fig.2-16 II-6...
Page 60 Take the print head cartridge out of the package and extract the eight seals hard in the horizontal direction. Note: Keep the aluminum bag of the print head cartridge if a future move of the printer is anticipated. Fig.2-17 Extract the protective material of the print head cartridge by holding the right and left ends.
Page 61 Hold the print head cartridge by the handle and align the bottom roll at the other side of the cartridge with the front groove of the printer indicated by the arrow. Then lower the cartridge slowly. Note: Do not touch the intermediate transfer roll. The cartridge may be damaged if lowered when the groove and shaft are not aligned well.
Page 62: Mounting The Toner Cartridge
Mounting the Toner Cartridges Mount the toner cartridges as explained next. Note: The toner is not harmful to the human body. If the toner gets on your skin or clothes, wash it away immediately. Fig.2-23 Detach the top cover. Fig.2-24 Take a new toner cartridge of the same color as the label at the mounting position out of the package.
Page 63 Shake the cartridge several times (7 or 8) to make the toner even inside. Fig.2-26 By aligning with the groove of the printer, place the cartridge in the direction shown in the figure. Fig.2-27 Hold the knobs at both ends of the toner cartridge. While pressing down gently, turn the knobs to this side.
Page 64 Extract the toner seal upward. Note: For extraction, pull the toner seal straight up. The tap may be cut if pulled askew. Fig.2-29 Mount the remaining three toner cartridges in the same way. Fig.2-30 Attach the top cover. Fig.2-31 II-11...
Page 65: Mounting The Transfer Roll Cartridge
Mounting the Transfer Roll Cartridge Follow the procedure below to replace the transfer roll cartridge. Fig.2-32 Push up button ‘A’ (1) and fully open the front cover (2). Fig.2-33 Grip the orange tabs at both ends of the transfer roll (1) and gently lift it out of the printer (2).
Page 66 Unpack a new transfer roll cartridge and grip the orange tabs as shown. Fig.2-35 Insert the pins at both ends of the transfer roll cartridge into the bearings inside the printer, and gently push the roll into the printer. Fig.2-36 To lock the transfer roll cartridge into the printer, push down on the tabs until you hear a click.
Page 67: Loading Paper
Close the front cover. Fig.2-38 Loading Paper Load paper on the tray as explained next. Fig.2-39 Pull out the paper tray until it stops. Fig.2-40 II-14...
Page 68 Hold the paper tray by both hands and extract it by lifting this side up. Note: Put the removed paper tray at a flat place. Fig.2-41 Shift the vertical and horizontal paper guides outward. The vertical paper guide should be lifted a little and shifted to positions greater than the paper size. Fig.2-42 Pinch and lift the vertical paper guide slightly and align the projection of the guide with the...
Page 69 By aligning the four corners, load the paper under the tabs with the printing side up. Note: Do not use folded, wrinkled, or greatly curled paper. Make sure that the paper is not on the tabs. Fig.2-44 Align the horizontal paper guide with the paper width. Note: If the paper guides are pressed too hard against the paper, a paper jam may occur.
Page 70 Push the tray deep into to the printer. Note: Be careful not to push in the tray too hard. Otherwise, the printer or tray itself may be damaged. Fig.2-47 Note: A paper try has a paper level indicator on its side. Check this indicator when loading paper.
Page 71: Connecting The Power Cable
To prevent fire or electric shocks, follow the instruction below based on your machine configuration. If in doubt, contact your dealer or authorized Brother service representative. - If your machine is a 220-240 V model, there is no need to attach a separate earth line since the earth connection is incorporated in the power line.
Page 72 Press the [|] side of the power switch on the right side of the printer to turn the power on. Note: When the power is turned on for the first time after installation, the motor in the printer rotates for one or two minutes. Fig.2-50 II-19...
Page 73: Correcting The Color Registrations
Correcting the Color Registrations When the printer is installed for the first time or reinstalled after a move, correct the color registrations as explained next. < Chart Printing > Print the color registration correction chart from the operator panel. (Print screen: Printer ready) (1) Press the Menu button to display the menu screen.
Page 74 < Determining Set Values > From the lines at right of each grid pattern Y (yellow), M (magenta), or C (cyan) on the printed color registration correction chart, the numeric value of a line most straight is read. Note: The color density of each grid pattern is also helpful. The highest density indicates a line most straight.
Page 75 From previous page (4) Press the button several times until the set value is displayed (example: +3). (5) Press the button once to move the cursor (_) to the next value. (6) Set the color registration values by repeating (4) and (5). (7) Press the Form Feed/Set button once.
Page 76 CHAPTER III STRUCTURE OF SYSTEM COMPONENTS...
Page 77 CONTENTS CHAPTER III STRUCTURE OF SYSTEM COMPONENTS....III-1 1. PRINTING PROCESS ................... III-1 1.1 Summary of Printing Process ....................III-1 1.2 Schematic Diagram for Printing Processes ................. III-3 1.3 Description of Printing Process Techniques ................ III-4 1.3.1 Charging with electricity....................III-4 1.3.2 Exposure ........................
Page 78 5.5.1 Major functions ......................III-30 5.5.2 Reference diagram...................... III-31 5.6 Chute ASSY Exit ........................ III-32 5.6.1 Major functions ......................III-32 5.6.2 Reference diagram...................... III-32 5.7 Transfer Roll Cartridge ASSY & Fuser ................III-33 5.7.1 Major functions ......................III-33 5.7.2 Reference diagram...................... III-34 5.8 Xerographics........................
Page 79: Chapter Iii Structure Of System Components
CHAPTER III STRUCTURE OF SYSTEM COMPONENTS PRINTING PROCESS Summary of Printing Process This printer is a "Full-color laser printer" which applies the principal of an electrophotographic recording system. The tandem system comprising a drum and developing unit respectively for each color of yellow, magenta, cyan and black (Y, M, C and K) places toner image of each color on paper producing full-color prints finally through 3 intermediate transfer units (IDT 1: 2, IDT 2: 1).
Page 80 Drum Y Drum M Drum C Drum K Charged Charged Charged Charged with with with with electricity electricity electricity electricity Exposure Exposure Exposure Exposure Develop- Develop- Develop- Develop- ment ment ment ment Primary transfer Primary transfer ® ® (Drum IDT1) (Drum IDT1) Intermediate...
Page 81: Schematic Diagram For Printing Process
Schematic Diagram for Printing Processes Outline of printing processes is shown in the figures below. : Laser beam Toner Cartridge ASSY(Y) [(3) Development] Scanner ASSY : Paper transfer [(2) Exposure] Toner Cartridge ASSY(M) Print Head [(3) Development] FUSER ASSY Cartridge ASSY [(10) Fixing] Toner Cartridge ASSY(C) [(3) Development]...
Page 82: Description Of Printing Process Techniques
Description of Printing Process Techniques 1.3.1 Charging with electricity In the charging process, the drum surface rotating at a constant speed is charged uniformly with negative electricity by discharging of HTC (Hechima Tube Charge: Charged film). This process is performed in parallel for yellow, magenta, cyan and black colors. The HTC is kept in contact with the drum and rotates following the rotations of the drum.
Page 83 1.3.2 Exposure In the exposure process, the drum surface charged negatively is scanned by laser beams to form invisible electrostatic latent image on the drum surface. This process is performed in parallel for yellow, magenta, cyan and black colors. Laser beams are emitted from the laser diode in the scanner ASSY. By the rotating polygon mirror, fixed mirror and lens attached to the scanner ASSY of the scanner ASSY, each color of drum surface is scanned from end to end in the axial direction.
Page 84 Scanner ASSY : Negative electric charge : Positive electric charge Drum surface (Laser beams) Optical conductor Conductor Electrostatic (Laser beams) latent image Fig.3-9 Drum Fig.3-8 < Drum concept > Electric potential Laser beams on drum (Laser beams) Optical conductor Conductor Fig.3-10 Fig.3-11 III-6...
Page 85 1.3.3 Development In the development process, toner is electrically attached to the invisible statistic latent image on the drum surface to form visible toner image on the drum. This process is performed in parallel for yellow, magenta, cyan and black color respectively.
Page 86 Toner Cartridge ASSY : Negative electric charge : Positive electric charge Agitator : Toner : Carrier Auger Trimmer Rod Magnet Roll Paddle Auger Auger Drum HVPS Fig.3-12 Electric potention Dram surface on drum Developing bias Toner image Fig.3-13 Fig.3-14 III-8...
Page 87 1.3.4 Primary transfer (drum -> IDT 1) In the primary transfer process, toner image formed on the drum surface is transferred onto the surface of the IDT 1 (Intermediate Drum Transfer 1: intermediate transfer roll 1). Two IDT 1 are provided: yellow and magenta, and cyan and black are respectively transferred to their IDT 1.
Page 88 Drum surface (Yellow toner image) IDT1 surface Yellow toner image Magenta toner image Drum surface (Magenta toner image) Drum surface (Cyan toner image) IDT1 surface Cyan toner image Drum surface Black (Black toner image) toner image Fig.3-17 III-10...
Page 89 1.3.5 Secondary transfer (IDT 1 -> IDT 2) In the secondary transfer process, the toner image formed on the IDT 1 surface is transferred onto the surface of the IDT 2 (Intermediate Drum Transfer 1: intermediate transfer roll 2). Two color toner image transferred onto the 2 IDT 1 is transferred to the IDT 2. Thus, 4 color toner image are compiled on the IDT 2 as finished toner image.
Page 90 IDT1 surface Yellow toner image Magenta toner image IDT2 surface Yellow toner image Magenta toner image Cyan toner image IDT1 surface Black toner image Cyan toner image Black toner image Fig.3-19 1.3.7 Tertiary transfer (IDT 2 - paper) In the tertiary transfer process, finished toner image formed on the IDT 2 surface is transferred onto the paper under the voltage supplied to the transfer roll cartridge.
Page 91 1.3.8 Cleaning (IDT 2) In the cleaning process, toner remaining on the IDT 2 after the toner image is transferred onto the paper is temporarily held at the IDT 2 cleaner. The IDT 2 cleaner is a conductive roll brush and receives positive high voltage from HVPS.
Page 92 1.3.10 Fixing In the fixing process, toner is fixed on the paper by heat and pressure. Finished toner image transferred from the belt is easily broken only by touching it with fingers. The toner image is fixed on the paper with the fuser ASSY (fixing unit). The toner melts by heat of the heat roll with the heater lamp as the heat source and is deposited on the paper under pressure given by the belt opposed against the heat roll.
Page 93 1.3.11 Cleaning (general) In the cleaning (general) process, toner stored in the IDT 1 cleaner and IDT 2 cleaner after the finished toner image is transferred onto the paper and the toner remaining on the transfer roll cartridge are removed. The toner not completely transferred in the "secondary transfer"...
Page 94 2) Refresher and HTC High voltage of the polarity (negative) reverse to that at the printing transfer is applied to the IDT1, IDT2, and transfer roll cartridge. At this time, the drum surface is charged negatively by negative voltage of the IDT1. The toner (positive polarity) remaining in the Refresher and HTC are move to the drum electrically by transforming the Refresher and HTC to 0V.
Page 95: Flow Of Print Data
FLOW OF PRINT DATA Data Flow Print data (electric signal) from the printer controller flows as shown below to turn to the print image finally. Host (electric signal) Printer controller (electric signal) HNB MCU WITH CPU (electric signal) Scanner ASSY (laser beams) Electrostatic latent on drum (invisible image) Toner image on drum...
Page 96: Drive Transmission Route
DRIVE TRANSMISSION ROUTE Main Drive ASSY Rotary power of the main drive ASSY is transmitted through the route below. MAIN DRIVE ASSY GEAR IDLER IN Regi.Clutch CLUTCH ASSY TURN GEAR IDLLER Regi.Roll CHUTE REGI ROLL ASSY TURN GEAR IDLLER FEED GEAR FEED H1 GEAR FEED1 ROLL ASSY FEED...
Page 97: Deve Drive Assy
DEVE Drive ASSY The rotary power of the DEVE drive ASSY drives the developers of 4 colors in the print head cartridge ASSY. DEVE DRIVE ASSY Developer (Y) Developer (M) Developer (C) Developer (K) PRINT HEAD CARTRIDGE ASSY Fig.3-26 Holder Toner Cartridge ASSY (Y, M, C, K) Rotary power of the toner motor in the holder toner cartridge ASSY drives the agitator in the toner cartridge ASSY (to supply toner from the toner cartridge ASSY to holder toner cartridge ASSY) and auger in the holder toner cartridge ASSY (to supply toner to...
Page 98: Fuser Drive Assy
Fuser Drive ASSY Rotary power of the fuser drive ASSY drives the fuser ASSY. FUSER DRIVE ASSY Heat Roll Gear Exit Roll Assy Exit FUSER ASSY Fig.3-28 Motor ASSY DUP Rotary power of the motor ASSY DUP is transmitted through the route below. MOTOR ASSY DUP GEAR 48 GEAR 48...
Page 99: Gear Layout
Gear Layout CHUTE ASSY OUT PRINT HEAD CARTRIDGE ASSY TRANSFER ROLL CARTRIDGE ASSY REGI CLUTCH CHUTE REGI MAIN DRIVE ASSY CLUTCH ASSY TURN GEAR MSI GEAR IDLER FEED HOUSING ASSY RETARD CLUTCH TURN GEAR IDLER IN GEAR FEED1 GEAR IDLER GEAR FEED H1 FRONT PAPER FEEDER (PICK UP ASSY)
Page 100: Paper Transfer
PAPER TRANSFER Paper Transfer Route (without option) Paper feed from paper tray (Tray 1) Paper feed from MSI Paper feed by "ROLL ASSY FEED (MSI)" Paper feed by "ROLL ASSY FEED (Tray)" and "ROLL ASSY RETARD" Paper feed by "ROLL ASSY" in cassette and "ROLL ASSY"...
Page 101: Layout Of Paper Transfer Route
Layout of Paper Transfer Route : Laser beam : Paper transfer : Paper sensors ROLL EXIT ROLL MID ROLL PINCH EXIT ROLL PINCH Heat Roll Pinch Roll IDT2 ROLL ASSY EXIT Fuser Belt ROLL DUP ROLL PINCH DUP Transfer Roll Cartridge Metal Roll Regi Roll ROLL ASSY FEED...
Page 102: Functions Of Major Functional Components
FUNCTIONS OF MAJOR FUNCTIONAL COMPONENTS Major functional components comprising the printer are described below referring to their illustrations. Those components are classified into the following blocks based on the configuration of the printer. Paper Cassette Paper Feeder Housing ASSY Retard Front ASSY In Chute ASSY Out Chute ASSY Exit...
Page 103: Major Functions
Paper Cassette 5.1.1 Major functions Side Guide The side guide can move at right angle to the paper transfer direction to align the paper width. End Guide The end guide can move in the paper transfer direction to determine the paper size. The ON/OFF of switch ASSY size (see 5.2 Paper Feeder) varies according to the end guide position to detect the paper size.
Page 104: Paper Feeder
Paper Feeder 5.2.1 Major functions Switch ASSY size Switch ASSY size detects paper size and existence or non existence of the paper tray. Sensor photo (No paper sensor) Detects existence or non existence of paper in the paper tray based on the position of actuator no paper.
Page 105 5.2.2 Reference diagram SENSOR PHOTO(No Paper Sensor) ROLL ASSY FEED SENSOR HUM TEMP CLUTCH ASSY TURN SWITCH ASSY SIZE GEAR FEED SPRING FEED GEAR IDLER FEED ROLL ASSY TURN SOLENOID FEED ROLL ASSY(PICK UP ASSY T1) SENSOR PHOTO(Low Paper Sensor) Fig.3-35 III-27...
Page 106 Housing ASSY Retard 5.3.1 Major functions Clutch turn (MSI turn clutch) Transmits the drive from the main drive ASSY to the roll turn. Roll turn The roll turn is rotated by the drive from the main drive ASSY through the clutch turn (MSI turn clutch) to feed the paper from the manual feed tray to the chute REGI (REGI roll) (refer to "5.8 Xerographics").
Page 107 Front ASSY In 5.4.1 Major functions Holder ASSY CTD Reads the density of the toner image prepared on the surface of transfer roll cartridge in the transfer roll cartridge unit ASSY (refer to "5.7 Transfer Roll Cartridge ASSY & Fuser") and feeds it back to the process control (refer to "7.4 Process Control"). Sensor TNR full Detects that the toner collect space in the transfer roll cartridge unit ASSY (refer to "5.7 Transfer Roll Cartridge ASSY &...
Page 108: Housing Assy Retard
Chute ASSY Out 5.5.1 Major functions Sensor photo (Full stack sensor) Detects that the prints discharged onto the top cover have accumulated more than specified number of sheets based on the change of position of the actuator. (Full stack: Sensor beam is received) Sensor photo (Dug jam sensor) Detects that paper has reached and passed through the roll DUP based on the change of position of the actuator.
Page 109 5.5.2 Reference diagram SENSOR PHOTO(Full Stack Sensor) SENSOR PHOTO(DUP Jam Sensor) ROLL DUP Gear Idier(MAIN DRIVE ASSY) GEAR MSI ROLL ASSY FEED SENSOR PHOTO(MSI No Paper Sensor) SOLENOID FEED MSI Fig.3-38 III-31...
Page 110: Chute Assy Exit
Chute ASSY Exit 5.6.1 Major functions Motor ASSY DUP Supplies drive to the roll exist, roll MID, and roll DUP. Roll exit The roll exit rotates under the drive from the motor ASSY DUP, and feeds fixed prints onto the top cover. It reverses in the duplex document mode and feeds the prints after fixed on simplex in the REGI direction.
Page 111: Transfer Roll Cartridge Assy & Fuser
Transfer Roll Cartridge ASSY & Fuser 5.7.1 Major functions Fuser ASSY The fuser ASSY fixes toner which was transferred onto the paper but not fixed by the heat and pressure and feeds paper before and after being fixed. The fuser ASSY mainly consists of the following parts: Heat roll Belt unit Heater lamp...
Page 112: Reference Diagram
5.7.2 Reference diagram FUSER ASSY Exit Sensor FAN FUSER Transfer Roll Cartridge UNIT ASSY Fig.3-40 III-34...
Page 113: Xerographics
Xerographics 5.8.1 Major functions Scanner ASSY Scanner ASSY (raster output scanner assembly) is an exposure unit to generate laser beams to form electrostatic latent image on the drum surface. In this manual, the scanner ASSY is referred to as scanner ASSY. The scanner ASSY mainly consists of the following parts: LD ASSY Lens...
Page 114: Reference Diagram
5.8.2 Reference diagram Scanner ASSY Print Head Cartridge ASSY OHP SENSOR ASSY SENSOR PHOTO(Regi Sensor) CHUTE REGI(Regi Clutch) Fig.3-41 III-36...
Page 115: Toner Cartridge Assy
Toner Cartridge ASSY 5.9.1 Major functions Switch Toner Cartridge ASSY (Y) Switch Toner Cartridge ASSY (M) Switch Toner Cartridge ASSY (C) Switch Toner Cartridge ASSY (K) Detects whether Toner Cartridge ASSY of each color is installed or not. Sensor toner low (Y) Sensor toner low (M) Sensor toner low (C) Sensor toner low (K)
Page 116 5.9.2 Reference diagram SWITCH TCRU ASSY(Y) SWITCH TCRU ASSY(M) SWITCH TCRU ASSY(C) SWITCH TCRU ASSY(K) TONER CARTRIDGE ASSY(Y) TONER CARTRIDGE ASSY(M) S-HVPS TONER CARTRIDGE ASSY(C) TONER CARTRIDGE ASSY(K) PWBA EEPROM STD HOLDER TONER CARTRIDGE ASSY(4) (Toner Motor : K) SENSOR TONER LOW(Y) HOLDER TONER CARTRIDGE ASSY(3) (Toner Motor : C) SENSOR TONER LOW(M)
Page 117: Frame & Drive
5.10 Frame & Drive 5.10.1 Major functions Main drive ASSY Supplies the drive to parts as follows. Paper feeder Housing ASSY retard Chute ASSY out (MSI position) Chute REGI Print Head Cartridge ASSY (IDT 2, IDT 1, Drum) Transfer Roll Cartridge unit ASSY DEVE drive ASSY Supplies the drive to parts as follows.
Page 118: Electrical
5.11 Electrical 5.11.1 Major functions Discharges heat out of the printer to prevent too high temperature in the printer. Harness ASSY AC SW Composed of the main switch and inlet and controls supply of AC power from the power source to LVPS. LVPS STD The LVP STD is provided with two types, 100/200V and 230V.
Page 119: 5.11.2 Reference Diagram
5.11.2 Reference diagram CONTROLLER BOARD PWBA HNB DRV HNB MCU WITH CPU FAN REAR LVPS STD HARNESS ASSY AC SW Fig.3-44 III-41...
Page 120: Modes
MODES Print Mode There are three types of print modes, standard mode, fine mode, and high gloss mode. These are discriminated by the resolution (600dpi/1200dpi) and process speed (full speed/half speed). Setting the process speed to half speed and the video data transfer speed to SCANNER to twice the speed at 600dpi attains the resolution of 1200dpi.
Page 121: Control
CONTROL Control of Paper Size "ON/OFF of paper size switch of switch ASSY size " and "Diag tool indication data" are shown in the table below. Note: Paper size switches are indicated as SW1, SW2, and SW3 from the above one. Paper size switch Diag Paper size...
Page 122: Potential Control
7.4.1 Potential control To attain stable printing image density, the drum charging voltage and the developing DC voltage are adjusted according to the developing capability of each color carrier that varies momentarily. The adjusted drum charging voltage and the developing DC voltage are fed back to keep the printing image density constant.
Page 123: Toner Density Control
7.4.2 Toner density control The toner density must be kept constant to attain stable printing image. To keep the toner density constant, the toner should be dispensed exactly by the quantity consumed for the printing. This system is the PCDC. However, the system with only the PCDC generates a difference from target toner density, thus requiring the system to correct this error.
Page 124: High Area Coverage Mode
7.4.3 High area coverage mode A continuous printing of the image of area coverage exceeding the toner dispense capability causes the toner density in the developer to be lowered. The high area coverage mode extends the next page feed and dispenses the toner during this time, if the toner dispense time reached the specified value during a continuous printing.
Page 125: Color Registration Control
Color Registration Control The printer uses a tandem system where the drums and developers exclusively for yellow, magenta, cyan, and black are arranged respectively. The images are formed on the drums of respective colors cyan, and black are arranged respectively. The images are formed on the drums of respective colors registration control calculates how much the registration is shifted, and adjusts the scanner write timing.
Page 126: Transfer Roll Cartridge Unit Assy Control
Transfer Roll Cartridge Unit ASSY Control 7.6.1 Detecting the installation of transfer roll cartridge unit ASSY Whether the transfer roll cartridge unit ASSY is installed is detected when the power is turned on, or the front cover is opened and closed. The sensor for detecting the installation is not provided, but judgment is made from the output of the holder ASSY CTD.
Page 127: Toner Control
Toner Control Whether the toner bottle is installed is detected by the switch toner cartridge ASSY, and the presence of toner in the toner bottle is detected by the sensor toner low. These switches and sensors are provided for respective colors, and detection is made for each color.
Page 128: Fuser Control
Fuser Control 7.8.1 Fuser temperature control As for the fuser temperature control, the target temperature is set, then the heat roll surface temperature is controlled so as to be the target temperature by turning on/off the heater lamp. The heat roll surface temperature is detected by the temp sensor. The temp sensor detects the temperature and the resistance value for disconnection sensing alternately at 40ms cycles.
Page 129: Chapter Iv Assembly / Disassembly
CHAPTER IV ASSEMBLY / DISASSEMBLY...
Page 130: Before Starting Disassembly
CONTENTS CHAPTER IV ASSEMBLY / DISASSEMBLY ........ IV-1 1. BEFORE STARTING DISASSEMBLY............1.1 Precautions ........................IV-1 1.2 Fuser ASSY Removal ......................IV-2 1.3 Transfer ASSY Removal ....................IV-3 1.4 Controller Board Removal ....................IV-4 1.5 Description of Procedures ....................IV-5 2. DISASSEMBLY PROCEDURE..............IV-6 2.1 Cover of the Printer ......................IV-6 2.1.1 Cover ASSY front head .....................IV-6 2.1.2 Console panel......................IV-7 2.1.3 Fan fuser........................IV-8...
Page 131 2.2.24 Chute ASSY REGI ....................IV-32 2.2.25 Actuator REGI......................IV-33 2.2.26 Sensor photo: REGI....................IV-33 2.2.27 OHP sensor ASSY....................IV-34 2.2.28 Housing ASSY retard.....................IV-36 2.2.29 Clutch turn ......................IV-36 2.2.30 Roll turn .........................IV-37 2.2.31 Roll ASSY retard....................IV-37 2.2.32 Stud retard ......................IV-39 2.2.33 PWBA ASSY earth ....................IV-39 2.3 Top of the Printer......................IV-40 2.3.1 Holder toner cartridge ASSY unit................IV-40 2.3.2 Holder toner cartridge ASSY ...................IV-42...
Page 132 2.5.21 Roll ASSY ......................IV-74 2.5.22 Cassette ASSY front....................IV-74 2.5.23 Holder retard......................IV-75...
Page 133: Precautions
CHAPTER IV ASSEMBLY / DISASSEMBLY BEFORE STARTING DISASSEMBLY Precautions Note: Parts are controlled as spare parts. When servicing for parts for which no procedures are described, observe their assembling condition before starting the service. Note: For optional parts, refer to the manual for them. Note: Though the optional parts are assumed to be removed, they may not be removed if not required for the purpose of service operation.
Page 134: Fuser Assy Removal
Fuser ASSY Removal WARNING Fuser is high temperature after operation. Be careful when working it not to get burning. 1) Release latch B and open the chute ASSY out. 2) Open the cover ASSY top print head cartridge. 3) Release the 2 catches on top of the fuser ASSY. 4) Remove the fuser ASSY from the printer.
Page 135: Transfer Assy Removal
Transfer ASSY Removal Release latch A and open the front ASSY in. Holding the right and left knobs securing the transfer roll cartridge unit ASSY to the front ASSY in, unlock and rotate the transfer roll cartridge unit ASSY rearwards. Extract the transfer roll cartridge unit ASSY forwards from the front ASSY in and remove.
Page 136: Controller Board Removal
Controller Board Removal Remove the cover cassette rear. From the rear side of the printer, loosen the screws that secure the controller board. Holding the left and right knobs on the controller board, pull out the controller board of the printer. Note: In replacing the controller board on the printer, connect the connector at the leading end of controller board to the connector of the PKG SERVICE MCU HANABI .
Page 137: Description Of Procedures
Description of Procedures Note: In the procedures, directions are represented as follows. Front: Front when you are facing the front of this laser printer. Rear: Inner direction when you are facing the front of this laser printer. Left: Left hand when you are facing the front of this laser printer. Right: Right hand when you are facing the front of this laser printer.
Page 138: Disassembly Procedure
DISASSEMBLY PROCEDURE Cover of the Printer 2.1.1 Cover ASSY front head 1) Release latch B of the printer and open the front cover. Note: Do not separate the front cover and cover ASSY front head too far in the following process.
Page 139 2.1.2 Console panel 1) Release the 3 hooks securing the console panel to the cover ASSY front head. 2) Remove the console panel from the cover ASSY front head. Console panel Cover ASSY front head Bottom view Fig.4-7 IV-7...
Page 140 2.1.3 Fan fuser 1) Remove 2 screws securing the holder lever out from the rear of the cover ASSY front head. 2) Remove the fan assembly from the cover ASSY front head. 3) Remove the lever out from the holder lever out. 4) Disconnect of the fan fuser.
Page 141 2.1.4 Cover MSI 1) Close the front cover. 2) Open the cover MSI. 3) While pulling the left hand side of the cover MSI, release the boss of the tray ASSY base from the slot in the cover MSI. 4) Repeat for the right hand side. 5) Lower the front of the cover MSI unit the cover MSI releases from the printer.
Page 142 2.1.6 Cover ASSY front L 1) Release latch B and open the chute ASSY out. 2) Remove the top of the link: L from the leaf spring at the back of the cover ASSY front 3) Remove 2 screws securing the cover ASSY front L to the chute ASSY out. 4) Release the 2 hooks securing the cover ASSY front L to the chute ASSY out.
Page 143 2.1.7 Cover ASSY front R Note: In the following process, do not separate the cover ASSY front R and link: R too far. 1) Release latch A and open the front ASSY in together with the chute ASSY out. 2) Remove 2 screws securing the cover ASSY front R to the front ASSY in. 3) Pull out the cover ASSY front R slightly from the front ASSY in.
Page 144 2.1.8 Cover top main Note: Before removing the cover top main, remove the toner cartridges. 1) Open the cover ASSY top print head cartridge. 2) Remove 2 screws securing the cover top main to the printer. 3) Release the 4 hooks securing the cover top main to the printer. 4) Raise the cover top main slightly from the printer and extract the left front edge of the cover top main deflecting it leftward.
Page 145 2.1.9 Cover side L 1) Remove 1 screw securing the rear of cover side L to the printer. 2) Release the hook securing the cover side L at the front edge of the printer. 3) Remove the cover side L from the printer. Cover side L Screw, tapping M3x8 Fig.4-17...
Page 146 2.1.11 Cover side R 1) Remove 1 screw securing the rear of cover side R to the printer. 2) Release the hook securing the cover side R at the front of the printer. 3) Remove the cover side R from the printer. Cover side R Screw, tapping M3x8 Fig.4-19...
Page 147 2.1.13 Link: L 1) Remove the top of spring link: L from the projection on the left side of the printer. 2) Slide the link: L rearward and align the shaft of the printer and hole of the link: L. 3) Remove the link: L from the printer together with the spring link: L.
Page 148: Front Of The Printer
Front of the Printer 2.2.1 Chute ASSY out Note: In the following step, lock the chute ASSY out and front ASSY in to the printer with latches A and B. 1) Remove 5 connectors (A-E) from left hand side of printer that connect to the chute ASSY out.
Page 149 6) Remove the ring E on the right and left shaft pivot securing the bottom portion of the chute ASSY out and front ASSY in. CAUTION In the following steps, take care not to hurt your hand with burrs of the plate ASSY bottom MSI.
Page 150: Actuator Full
2.2.2 Actuator full 1) While pulling the center of the actuator full shaft upwards, pull the right hand end of the shaft forwards to clear the sensor and release the right end of the shaft. 2) Move the shaft to the right to release the left end of the shaft and remove it. Actuator full Fig.4-26 2.2.3...
Page 151: Actuator Dup
2.2.4 Actuator DUP 1) Release the 2 hooks securing the cover actuator to the chute ASSY out. 2) Remove the cover actuator from the chute ASSY out. 3) Pushing the front arm of the actuator DUP down, slide the actuator DUP to the right and extract the left side shaft of the actuator DUP from the left side bush.
Page 152: Sensor Photo: Dup
2.2.5 Sensor photo: DUP 1) Remove the sensor photo: DUP cable. 2) Release the 3 hooks securing the sensor photo: DUP to the chute ASSY out. 3) Remove the sensor photo: DUP from the chute ASSY out. Sensor photo: DUP Fig.4-30 2.2.6 Actuator MSI...
Page 153: Sensor Photo: Msi
2.2.7 Sensor photo: MSI 1) Remove the connector on the sensor photo: MSI from the chute ASSY out. 2) Release the 3 hooks securing the sensor photo: MSI to the chute ASSY out. 3) Remove the sensor photo: MSI from the chute ASSY out. Sensor photo: MSI Rear view Fig.4-32...
Page 154: Roll Dup
2.2.9 Roll DUP 1) Release the hook remove the gear 30 from the shaft of the roll DUP. 2) Extract the bush earth securing the left end of the shaft to the chute ASSY out. 3) Remove the E-ring securing the right end of the shaft to the chute ASSY out. 4) Extract the bush securing the right end of the shaft to the chute ASSY out.
Page 155: Roll Assy Feed
2.2.11 Roll ASSY feed 1) Release the hook securing the roll core MSI: right to the shaft MSI on the chute ASSY out and push down the plate bottom MSI slightly to release the nip with the roll ASSY feed. 2) Slide the roll ASSY feed to the right on the shaft MSI and lift out the roll ASSY feed forwards.
Page 156: Shaft Assy Roll Feed
2.2.13 Shaft ASSY roll feed 1) Release the hook of the spring sol from a convex portion on the stopper sol cam from the chute ASSY out. 2) Release the hook securing the stopper sol cam to the left of shaft MSI, and remove the stopper sol cam from the shaft from the chute ASSY out.
Page 157: Plate Assy Bottom Msi
6) Pull off the bush MSI on the shaft MSI toward the inside. 7) Raising the right end of the shaft ASSY roll feed, pull out the shaft ASSY feed from the chute ASSY out. Note: When refitting the cam MSI ensure that it is located connecting on the shaft. When refitting the stopper sol cam, ensure it is in the home position.
Page 158: Chute Assy Exit
2.2.15 Chute ASSY exit 1) Disconnect the connector of the motor ASSY DUP on the chute ASSY out and release the cable from the clips. 2) Remove 2 screws securing the chute ASSY exit to the chute ASSY out. 3) Pull out the chute ASSY exit from the left side surface of the chute ASSY out. Note: When replacing the chute ASSY exit, be careful to avoid the actuator full on the chute ASSY out.
Page 159: Roll Exit
2.2.16 Roll exit 1) Release the hook securing the gear roll to the shaft of the roll exit. 2) Remove the gear roll from the shaft of the roll exit. 3) Remove the E-ring from the shaft of the roll exit. 4) Extract the bush earth from the shaft of the roll exit.
Page 160: Roll Mid
2.2.17 Roll MID 1) Release the hook securing the gear roll to the shaft of the roll MID. 2) Remove the gear roll from the shaft. 3) Remove the E-ring from the shaft of the roll MID. 4) Extract the bush earth from the shaft of the roll MID. 5) Remove the shaft of the roll MID from the chute ASSY exit and pull out the roll exit upwards.
Page 161: Motor Assy Dup
2.2.18 Motor ASSY DUP 1) Release the hook securing the gear roll to the shaft of the roll exit. 2) Remove the gear roll from the shaft of the roll exit. 3) Release the hook securing the gear roll to the shaft of the roll MID from the chute ASSY exit.
Page 162: Sensor Tnr Full
2.2.20 Sensor TNR full 1) Release the 2 hooks securing the sensor TNR full to the front ASSY in. 2) Remove the connector on the sensor TNR full. 3) Remove the sensor TNR full from the front ASSY in. Sensor TNR full Front Fig.4-46 2.2.21...
Page 163: Latch L
2.2.22 Latch L 1) Release the hook securing the latch L to the left side of the front ASSY in. 2) Remove the latch L from the front ASSY in. Front ASSY in Latch L Fig.4-48 2.2.23 Fuser drive ASSY 1) Remove the screw securing the earth of the harness ASSY FSR to the fuser drive ASSY.
Page 164: Chute Assy Regi
2.2.24 Chute ASSY REGI 1) Release the 2 hooks securing the housing ASSY ELEC to the printer and remove the housing ASSY ELEC upward. Housing ASSY ELEC Fig.4-50 2) Disconnect the 2 connectors of the chute ASSY REGI from the printer. 3) Remove 4 screws securing the chute ASSY REGI to the printer.
Page 165: Sensor Photo: Regi
2.2.25 Actuator REGI Holding the shielding portion of the actuator REGI move the actuator REGI left and extract the right hand end of the shaft of the actuator REGI from the bush of the chute ASSY REGI. Pull out the actuator REGI from the chute ASSY REGI together with the spring sensor REGI.
Page 166: Ohp Sensor Assy
2.2.27 OHP sensor ASSY Remove the E-ring that secures the gear REGI metal to the chute ASSY REGI, and remove the gear REGI metal. Remove the E-ring that secures the gear REGI rubber to the chute ASSY REGI, and remove the gear REGI rubber. Pull out the bush earth that secures the shaft of the roll REGI rubber.
Page 167 Lift the shaft of roll REGI metal, pull out the roll REGI metal together with the bush metal R (white). Roll REGI metal Chute ASSY REGI Fig.4-56 Release the 2 hooks on the bottom of chute ASSY REGI that secure the OHP sensor ASSY.
Page 168: Housing Assy Retard
2.2.28 Housing ASSY retard Remove the connector of the clutch turn from on the PWBA HB MCU. Remove 3 screws securing the housing ASSY retard to the printer. Remove the housing ASSY retard from the printer. Screw, M3x10 Screw, M3x10 Housing ASSY retard Fig.4-58 2.2.29...
Page 169: Roll Turn
2.2.30 Roll turn Remove the E-ring securing the roll turn to the housing ASSY retard. Pull out the bush earth securing the left side of the roll turn from the housing ASSY retard. Pull out the bush securing the right side of the roll turn from the housing ASSY retard.
Page 170 Pull out the holder ASSY retard to left upward from the housing ASSY retard. Release the hook securing the shaft RTD to the holder ASSY retard of the printer. Holder ASSY retard Fig.4-62 Raise the shaft RTD to right upward, and pull out the roll ASSY retard. Holder ASSY retard Roll ASSY retard Fig.4-63...
Page 171: Stud Retard
2.2.32 Stud retard Release the 2 hooks securing the cap retard to the housing ASSY retard. Remove the cap retard from the housing ASSY retard together with the stud retard and spring retard 370. Remove the stud retard from the cap retard. Housing ASSY retard Stud retard Spring retard...
Page 172: Top Of The Printer
Top of the Printer 2.3.1 Holder toner cartridge ASSY unit Note: When removing the holder toner cartridge ASSY unit, remove the toner deposit on the holder toner cartridge ASSY with a vacuum cleaner before starting the removal process. Note: When removing the toner deposit on the holder toner cartridge ASSY with a vacuum cleaner, attach an earth cord to the end of the cleaner to avoid the static electricity.
Page 173 Remove the connector (D) on the PWBA EFPROM STD on the left side of the printer. Remove the connector (E) on the S-HVPS on the left side of the printer. From the printer, release the fan harness from the clamps. Remove the connector (F) from the connector block.
Page 174 Note: When replacing the gear slide, meet the leading edge of gear rail on the left side. with the vertex of a triangle mark on the rack V. Rack V Fig.4-69 2.3.2 Holder toner cartridge ASSY On the holder toner cartridge ASSY unit, release the hook securing the toner discharging unit of the holder toner cartridge ASSY (1) on the plate ASSY dispenser L with a mini screwdriver.
Page 175 <Cyan> Holder toner cartridge ASSY (3) Fig.4-71 <Magenta> Holder toner cartridge ASSY (2) Fig.4-72 <Yellow> Plate ASSY dispenser Toner discharge unit Holder toner cartridge ASSY (1) Fig.4-73 IV-43...
Page 176: Holder Toner Cartridge Assy
2.3.3 Switch toner cartridge ASSY Release the 2 hooks securing the switch toner cartridge ASSY to the holder toner cartridge ASSY with a mini screwdriver. Remove the switch toner cartridge ASSY from the holder toner cartridge ASSY. Switch toner cartridge ASSY Left Holder toner cartridge ASSY Fig.4-74...
Page 177: Pwba Eeprom Std
2.3.5 PWBA EEPROM STD Remove 1 screw securing the PWBA EEPROM. Remove the PWBA EEPROM from the printer. Screw, M3x6 Left PWBA EEPROM Fig.4-76 2.3.6 S-HVPS Remove 4 screws securing the S-HVPS. Remove the S-HVPS from the printer. S-HVPS Screw, M3x6 Screw, M3x6 Left...
Page 178: Scanner Assy
2.3.7 Scanner ASSY Remove the connector on the scanner ASSY. Release the hook of the spring scanner securing the right and left shafts of the scanner ASSY from the printer. Remove 1 screw securing the scanner ASSY to the printer. Remove the scanner ASSY from the printer.
Page 179: Right / Left / Pcbs Of The Printer
Right / Left / PCBs of the Printer 2.4.1 HSG ASSY BIAS Remove 5 screws securing the HSG ASSY BIAS to the left side surface of the printer. Remove the HSG ASSY BIAS from the printer. Remove 8 contact pads from the printer. HSG ASSY BIAS Screw, M3x10 Screw, M3x10...
Page 180 Remove the link lever: L from the printer together with the spring lever: 30N and lever drum: L. Remove 4 springs from link lever: L and remove 4 lever drum: L. Note: When replacing the link lever, align the spring IDT L and the bottom of link lever: L with the positions shown in the figure (lever drum: L replacement).
Page 181: Drive Assy Main
2.4.3 Drive ASSY main Remove the connector on the PWBA HNB DRV from the right side of the printer. Remove 4 screws securing the drive ASSY main to the printer. Remove the drive ASSY main from the printer. Screw, DT M4x10 Screw, M3x6 Screw, DT M4x10 Drive ASSY main...
Page 182: Pwba Hnb Drv
2.4.4 PWBA HNB DRV Remove the all connectors on the PWBA HNB DRV from the right side of the printer. Remove 4 screws securing the PWBA HNB DRV to the printer. Remove the PWBA HNB DRV from the printer. Screw, M3x6 Screw, M3x6 Screw, M3x6 PWBA HNB DRV...
Page 183: Actuator I/R
2.4.5 Drive ASSY DEVE Remove 5 screws securing the Drive ASSY DEVE from the right side of the printer. Remove the Drive ASSY DEVE from the printer. Drive ASSY DEVE Screw, DT M4x10 Screw, DT M4x10 Fig.4-85 2.4.6 Actuator I/R From the right side of the printer, release the hook of the spring I/R from the convex portion of the plate ASSY lever R.
Page 184: Lever Drum: R
2.4.7 Lever drum: R Remove 4 screws securing the plate ASSY lever R from the right side of the printer. Remove the plate ASSY lever R from the printer. Release the hook of the spring lever 30N hitched over the convex portion of the 4 lever drum: R from the right side of the printer.
Page 185 Note: When replacing the link lever: R, align the spring IDT R and the bottom of link lever: L with the positions shown in the figure (lever drum: L replacement). Gear IDL. press Link lever: R Gear press R Fig.4-89 IV-53...
Page 186: Lvps
2.4.8 LVPS Remove 2 connectors from the LVPS (164/167). Remove the clamp guide harness at 2 positions secured on the guide harness SW of the LVPS STD. Shift the harness from the guide harness SW. Release the 2 hooks securing the guide harness SW to the switch bracket on the LVPS STD.
Page 187: Box Assy Mcu/Ess
2.4.9 Box ASSY MCU/ESS Remove the connector from the right side of the printer. Remove the connector on the scanner ASSY from the right side of the printer. Remove the connector from the left side of the printer. Box ASSY MCU/ESS Fig.4-92 Remove 4 screws securing the box ASSY MCU/ESS to the printer.
Page 188: Housing Assy Contact
2.4.10 Housing ASSY contact Remove the housing ASSY contact from the box ASSY MCU/ESS. Pull out the housing ASSY contact from the box ASSY MCU/ESS and remove it. Housing ASSY contact Fig.4-94 IV-56...
Page 189: Pkg Service Mcu Hanabi
2.4.11 PKG service MCU HANABI Remove 4 screws securing the cover MCU to the box ASSY MCU/ESS. Remove the cover MCU from the box ASSY MCU/ESS. Remove the connectors on the PKG service MCU HANABI from the box ASSY MCU/ESS. Cover MCU Screw, M3x6 Screw, M3x6...
Page 190: Paper Feed Of The Printer
Paper Feed of the Printer 2.5.1 Chute ASSY turn Release the 2 hooks at the front securing the chute ASSY turn to the printer feeder. The chute ASSY will hang ertically. Chute ASSY turn Fig.4-97 Release the hook securing the right and left shaft of the chute ASSY turn to the printer feeder.
Page 191: Cover Cassette
2.5.2 Cover cassette Turning the cover cassette upward from the rear of the printer, pull out the cover cassette upwards to remove it. Cover cassette Fig.4-99 IV-59...
Page 192: Feeder Assy Unit
2.5.3 Feeder ASSY unit Push the shaft of the link actuator secured to the actuator no paper from the printer feeder and disconnect the actuator no paper from the shaft. Pull the link actuator from the hole in the printer feeder and remove. Remove the connector connecting the printer and feeder ASSY unit from the left side of the printer.
Page 193: Pickup Assy
2.5.4 Pickup ASSY Remove the harness of the pickup ASSY from the right hook of the feeder ASSY unit. Disconnect the harness from the size switch. Remove 2 screws securing the pickup ASSY to the feeder ASSY unit. Lift the pickup ASSY from the feeder ASSY unit. Screw, Pickup ASSY M3x10...
Page 194: Roll Assy Feed
2.5.5 Roll ASSY feed Rotate the shaft feed 1 (180 ) so that the rubber of the roll ASSY feed L and R faces downward from the printer feeder. Release the hook securing the roll ASSY feed L and R to the shaft feed 1 and remove the roll ASSY feeds.
Page 195: Actuator No Paper
2.5.6 Actuator no paper Release the hook securing the actuator no paper to the pickup ASSY and extract the left side shaft of the actuator no paper. Pull out the actuator no paper left and upward from the pickup ASSY. Actuator no paper Rear Front...
Page 196: Sensor Photo: Low Paper
2.5.8 Sensor photo: Low paper Release the hooks at 3 positions securing the sensor photo: low paper to the pickup ASSY. Remove the connector on the sensor photo: low paper. Remove the sensor photo: low paper from the pickup ASSY. Right view Sensor photo: low paper Fig.4-106...
Page 197: Clutch Assy Turn
2.5.10 Clutch ASSY turn Release the hook securing the stopper clutch to the shaft on the right side shaft of the pickup ASSY. Pull out the stopper clutch from the shaft of pickup ASSY. Remove the connector of the clutch ASSY turn from the pickup ASSY. Pull out the clutch ASSY turn from the shaft.
Page 198: Roll Assy Turn
2.5.11 Roll ASSY turn Release the hook securing the gear feed 2 to the shaft of the pickup ASSY and pull out gear feed 2. Pull out the gear idler from the shaft of pickup ASSY. Pull out the gear idler in from the shaft of the pickup ASSY. Remove the right and left E rings securing the shaft of the roll ASSY turn to the pickup ASSY.
Page 199: Housing Assy Feeder L
2.5.13 Housing ASSY feeder L Remove 4 screws securing the housing ASSY feeder L to the plate bottom. Housing ASSY feeder L Screw, M3x10 Front Screw, M3x10 Left Fig.4-111 Pull down the housing ASSY feeder L inward and extract the 3 hooks out of the hole at the plate bottom.
Page 200: Sensor Hum Temp
2.5.14 Sensor HUM temp Remove the screw securing the sensor HUM temp. Remove the harness ASSY TMPA. Harness ASSY TMPA Screw, M3x10 Sensor HUM temp Left Fig.4-113 IV-68...
Page 201: Housing Assy Feeder R
2.5.15 Housing ASSY feeder R Remove 4 screws securing the support feeder left to the plate bottom. Housing ASSY feeder R Screw, M3x10 Right Screw, M3x10 Screw, M3x10 Front Fig.4-114 Pull down the housing ASSY feeder R inward and extract the 3 hooks out of the hole at the plate bottom.
Page 202: Harness Assy Opfrec
2.5.16 Harness ASSY OPFREC Release the harness ASSY OPFREC from the housing ASSY feeder R of the feeder ASSY unit. Release the 2 hooks securing the harness ASSY OPFREC to the housing ASSY feeder R. Pull out the harness ASSY OPFREC downward from the housing ASSY feeder R. Right Top view Rear...
Page 203: Indicator
2.5.18 Indicator Hold the tip of the indicator with radio pliers and pull the indicator frontward and remove from the housing ASSY feeder R of the feeder ASSY unit. Note: Hold the guide indicator, when replacing the indicator. Guide indicator Indicator Fig.4-118 IV-71...
Page 204: Guide Indicator
2.5.19 Guide indicator Release the 2 hooks securing the holder shaft to the housing ASSY feeder R. Holder shaft Lever low paper Fig.4-119 Pull out the guide indicator from the housing ASSY feeder R together with the spring indicator and shaft indicator. Pull out the guide indicator from the shaft indicator.
Page 205: Lever Low Paper
2.5.20 Lever low paper Turn the housing ASSY feeder R upside down. Push the support pillow to the left and release the lever low paper shaft. Left view Lever low paper Housing ASSY feeder R Fig.4-121 Remove the lever low paper from the housing ASSY feeder R. Lever low paper Fig.4-122 IV-73...
Page 206 2.5.21 Roll ASSY Release the cover feed secured to the cassette at one point and open the cover feed. Release the hook securing the roll ASSY to the shaft retard from the cassette. Pull out the roll ASSY from the shaft retard. Roll ASSY Cover feed Fig.4-123...
Page 207 2.5.23 Holder retard Remove the clutch ASSY friction on the shaft retard from the cassette. Release the hook of the spring retard hitched to the bottom groove of the holder retard from the cassette. Release the hook securing the top portion of the holder retard from the cassette and move the holder retard leftward.
Page 208 CHAPTER V TROUBLESHOOTING...
Page 209 CONTENTS CHAPTER V TROUBLESHOOTING ..........V-1 1. PREFACE ....................V-1 1.1 Troubleshooting Procedure ....................V-1 1.2 Note on Troubleshooting ....................V-1 2. LEVEL 1 TROUBLESHOOTING..............V-3 2.1 Level 1 FIP ........................V-3 3. LEVEL 2 TROUBLESHOOTING..............V-4 3.1 Fail Code List ........................V-4 3.2 Fail FIP ..........................V-14 4.
Page 210 9.3 Skew..........................V-70 9.4 Straightness ........................V-71 9.5 Magnification Error ......................V-71 9.6 Registration ........................V-71 9.7 Guaranteed Printing Area....................V-72 10. TEST PRINT ....................V-73 10.1 Test print ........................V-73 11. IMAGE QUALITY FIP ................V-74 11.1 Notes on Image Quality Trouble Check ................V-74 11.2 Basic Rule of Image Quality Adjustment...............V-74 11.3 Troubleshooting Table by Trouble Phenomena ............V-75...
Page 211: Chapter V Troubleshooting
CHAPTER V TROUBLESHOOTING PREFACE Troubleshooting Procedure The troubleshooting procedure can roughly be divided into two: Level 1 troubleshooting The level 1 FIP isolates the presence of various troubles including fail codes. Level 2 Troubleshooting Level 2 troubleshooting is a procedure in which troubles are classified by FIP, BSD or fail codes list.
Page 212 <Terms of glossary> Fail code: Control panel displays this code in case of a trouble. Power off: Main power switch is off and power cord is disconnected from the outlet. WARNING If power off is specified in the work procedure, turn the Main power switch to off and unplug power cord from the outlet.
Page 213: Level 1 Troubleshooting
LEVEL 1 TROUBLESHOOTING Level 1 FIP Ask the operator about trouble status. Is operator's operating method correct? Instruct how to operate. Is trouble content displayed Is trouble related to image on control panel? quality? Refer to Section 3 Image Turn power off/on. Quality RAPS to perform Is trouble content displayed on the corresponding Image...
Page 214: Level 2 Troubleshooting
LEVEL 2 TROUBLESHOOTING Fail Code List LCD Display < Name of Fail> Action Reference Contents of Trouble 001-360 Turn OFF <IOT Fan Motor Failure> Power off/on 2.9.3 the Power. Fuser fan or rear fan fail signal detected. See fan motor failure FIP 2.9.6 003-340 Turn OFF <IOT Firmware Error>...
Page 215 LCD Display < Name of Fail> Action Reference Contents of Trouble 010-351 Turn OFF <IOT Fuser Life Over> Power off/on 2.3.1 the Power. Fuser ASSY life expired. See fuser life over FIP 2.3.3 010-354 Turn OFF <IOT Environment Sensor Error> Power off/on 2.8.7 the Power.
Page 216 LCD Display < Name of Fail> Action Reference Contents of Trouble 016-327 Turn OFF Replace with the correct <ESS NVRAM1 ID Check Fail > 2.3.1 the Power. device. This error occurs if the backup device is inserted in master socket. 2.3.3 016-328 Turn OFF Replace with the correct...
Page 217 LCD Display < Name of Fail> Action Reference Contents of Trouble 016-313 Turn OFF Power off/on <ASIC Fail > 2.3.1 the Power. 2.3.3 016-360 Turn OFF <PCI Option#0 Fail> Power off/on 2.3.1 the Power. PCI option 0 detection error 2.3.3 016-361 Turn OFF Power off/on <PCI Option#1 Fail>...
Page 218 LCD Display < Name of Fail> Action Reference Contents of Trouble Reinsert Xxxxx <IOT X Toner Detached> Insert toner cartridge. 2.8.7 Toner (X) Toner cartridge switch ASSY detected that the toner cartridge is not 2.8.8 See toner cartridge mounted. detached FIP. Xxxxx indicates Yellow toner (Y), Cyan toner (C), Magenta toner (M) or Black...
Page 219 LCD Display < Name of Fail> Action Reference Contents of Trouble Replace <IOT transfer roll cartridge Life Over> Replace transfer roll 2.8.7 Transfer Roll Transfer roll cartridge ASSY life expired. 2.8.8 cartridge ASSY. See transfer roll cartridge life over FIP Replace Print <IOT print head cartridge Life Over>...
Page 220 LCD Display < Name of Fail> Action Reference Contents of Trouble (When paper is being fed from a <IOT Paper Size Mismatch> Open/close the tray. 2.6.1 Paper Size Mismatch detected. tray) Or, reload the manual feed 2.6.2 2.6.3 Check Paper in Tray N paper.
Page 221 LCD Display < Name of Fail> Action Reference Contents of Trouble Overrun Error <Overrun> Press the set key. Please Press Set The processing will continue. (Job is printed from the next page) Disk Full <Harddisk Full> Press the set key. Please Press Set The processing will continue.
Page 222 LCD Display < Name of Fail> Action Reference Contents of Trouble Ready to Print <IOT X Toner Near Empty> No action required. Need Replacement The X toner is low See Yellow toner empty FIP See Magenta toner empty See Cyan toner empty FIP See Black toner empty FIP CRU Warning: Xxxxx indicates Yellow...
Page 223 LCD Display < Name of Fail> Action Reference Contents of Trouble No display <IOT X Cassette Near Empty> No action required. Paper level is low in the X cassette. Tray1 paper near empty FIP, Tray2 paper near empty FIP See Tray3 paper near empty FIP Ready to Print <ERU Warning>...
Page 224: Fail Fip
Fail FIP Base Engine 001-360 Fan Motor Failure FIP(PL) Remedy Step Check Initial setting Replace the Check the following for evidence of fault. Go to step [2] parts concerned Fuser fan replacing condition Rear fan replacing condition Isolating faulty fan Go to step [3] Go to step [15] Does the fan rear rotate when printing 1...
Page 225 Remedy Step Check Checking drive PWB for signal Replace drive Print 1 sheet. Go to step [14] Is P/J42-29PIN<=>P/J42-14PIN +3.3VDC? Checking MCU and HVPS PWB for signal Replace MCU Replace harness and HVPS Print 1 sheet. ASSY DRV2 Is P/J12-2PIN<=>P/J12-17PIN +3.3VDC? Checking fuser fan Does fuser fan function normally? Replace MCU...
Page 226 003-340 Firmware Error FIP Remedy Step Check Does an error occur even if the power is If the error turned off and on? Replace MCU and recurs, replace HVPS PWB MCU and HVPS PWB 003-356 NV-RAM Error FIP Remedy Step Check Does an error occur even if the power is If the error...
Page 227 009-342 LOW Density Error FIP Remedy Step Check Initial setting Check the following for evidence of fault. Transfer roll cartridge ASSY replacing condition Replace the parts Go to step [2] ADC sensor ASSY replacing condition concerned Print head cartridge ASSY replacing condition Residual toner Checking harness ASSY CTD for...
Page 228 010-350 Fuser Failure FIP Remedy Step Check Initial setting Replace the parts Check the following for evidence of fault. Go to step [2] concerned Fuser ASSY replacing condition Checking fuser ASSY connector Replace Disconnect the fuser ASSY connector, Go to step [3] the parts and check for broken or curved pins.
Page 229 Duplex JAM FIP Remedy Step Check Initial setting Check the following for evidence of fault. Chute ASSY exit replacing condition Replace the parts Go to step [2] DUP motor replacing condition concerned DUP JAM sensor actuator replacing condition Chute ASSY out replacing condition Checking DUP JAM sensor Does DUP JAM sensor function normally? Go to step [7]...
Page 230 Fuser JAM FIP Remedy Step Check Initial setting Check the following for evidence of fault. Sensor exit actuator replacing condition Fuser ASSY replacing condition Front cover replacing condition Replace the parts Go to step [2] Chute DUP in replacing condition concerned Transfer roll cartridge ASSY replacing condition...
Page 231 REGI JAM FIP Remedy Step Check Initial setting Check the following for evidence of fault. Replace the parts Go to step [2] REGI sensor actuator replacing condition concerned chute ASSY REGI replacing condition Checking REGI sensor Does REGI sensor function normally? Go to step [6] Go to step [3] Using REGI sensor diagnostic tool, check...
Page 232 Remedy Step Check Checking REGI clutch harness for Replace the connection parts Go to step [4] Is it connected normally to the REGI concerned SENSOR? Checking REGI clutch harness for Replace chute continuity Go to step [5] REGI Is J181<=>J18 continuous normally? Checking MCU and HVPS PWB for signal Replace REGI Go to step [6]...
Page 233 Remedy Step Check Checking harness ASSY FDR for continuity Replace Check the following for continuity. harness ASSY Go to step [20] J47-13PIN<=>P475-2PIN J47-14PIN<=>P475-1PIN Checking tray1 turn clutch ASSY for resistance value Replace tray1 Remove the clutch connector J475. turn clutch Go to step [21] Is J475-1PIN<=>J475-2PIN less than ASSY...
Page 234 Remedy Step Check Checking clutch ASSY MSI turn for Replace MCU and resistance value Replace MSI Remove the clutch connector J19. turn clutch HVPS PWB Is J19-1PIN<=>J19-2PIN less than 200 ? Checking solenoid feed MSI for operation Check parts for Does the feed gear in the MSI run when missing and printing 1 sheet?
Page 235 Media Type Mismatch FIP Remedy Step Check Initial setting Check the following for evidence of fault. Replace the parts Go to step [2] OHP sensor replacing condition concerned Chute ASSY REGI replacing condition Checking OHP sensor Does OHP sensor function normally? Replace MCU and Go to step [3] Using diagnostic tool, check by digital...
Page 236 Remedy Step Check Checking MCU and HVPS PWB for signal Replace MCU and Is P/J12-27PIN<=>P/12-17PIN of MCU Go to step [9] HVPS PWB and HVPS PWB 0VDC? Checking harness ASSY DRV2 for Replace Replace MCU and continuity harness ASSY HVPS PWB Is J12<=>J42 continuous normally? DRV2 Magenta Toner Cartridge Detached FIP...
Page 237 Cyan Toner Cartridge Detached FIP Remedy Step Check Initial setting Check the following for evidence of fault. Cartridge replacing condition Toner cartridge switch ASSY (C) replacing Replace the parts condition Go to step [2] concerned Toner cartridge switch ASSY (C) actuator replacing condition Toner cartridge switch ASSY (C) connector replacing condition...
Page 238 Black Toner Cartridge Detached FIP Remedy Step Check Initial setting Check the following for evidence of fault. Cartridge replacing condition Toner cartridge switch ASSY (K) replacing Replace the parts condition Go to step [2] concerned Toner cartridge switch ASSY (K) actuator replacing condition Toner cartridge switch ASSY (K) connector replacing condition...
Page 239 Transfer Roll Cartridge Detached FIP Remedy Step Check Initial setting Check the following for evidence of fault. Replace the parts Transfer roll cartridge ASSY replacing Go to step [2] concerned condition ADC sensor ASSY replacing condition Checking harness ASSY CTD for Replace the connection Go to step [3]...
Page 240 Yellow Toner Empty FIP Remedy Step Check Initial setting Check the following for evidence of fault. Replace the parts Low toner sensor replacing condition Go to step [2] concerned Toner cartridge replacing condition Toner motor replacing condition Checking toner cartridge Check if an error occurs though the Go to step [3] End of work...
Page 241 Magenta Toner Empty FIP Remedy Step Check Initial setting Check the following for evidence of fault. Replace the parts Low toner sensor replacing condition Go to step [2] concerned Toner cartridge replacing condition Toner motor replacing condition Checking toner cartridge Check if an error occurs though the Go to step [3] End of work...
Page 242 Cyan Toner Empty FIP Remedy Step Check Initial setting Check the following for evidence of fault. Replace the parts Low toner sensor replacing condition Go to step [2] concerned Toner cartridge replacing condition Toner motor replacing condition Checking toner cartridge Check if an error occurs though the Go to step [3] End of work...
Page 243 Black Toner Empty FIP Remedy Step Check Initial setting Check the following for evidence of fault. Replace the parts Low toner sensor replacing condition Go to step [2] concerned Toner cartridge replacing condition Toner motor replacing condition Checking toner cartridge Check if an error occurs though the Go to step [3] End of work...
Page 244 Transfer Roll Cartridge Life Over FIP Remedy Step Check Initial setting Check the following for evidence of fault. Replace the parts Transfer roll cartridge ASSY replacing Go to step [2] concerned condition Waste toner sensor replacing condition Checking waste toner sensor Does waste toner sensor function normally? Go to step [6]...
Page 245 CRUM ID Error FIP Remedy Step Check Check the following for evidence of fault. Print head cartridge ASSY replacing Replace the parts condition Go to step [2] concerned PWBA CRUM in print head cartridge ASSY replacing condition Checking PWBA CRUM for connection Replace Is PWBA CRUM connector connected to Go to step [3]...
Page 246 Front Cover FIP Remedy Step Check Initial setting Check the following for evidence of fault. Replace the parts Drive PWB replacing condition Go to step [2] concerned Front cover replacing condition Interlock SW actuator replacing condition Checking interlock SW Does interlock SW function normally? Replace MCU and Go to step [3] Using interlock SW, check by digital...
Page 247 Upper Cassette Detached FIP Remedy Step Check Initial setting Check the following for evidence of fault. Replace the parts Size switch ASSY replacing condition Go to step [2] concerned actuator replacing condition Paper cassette replacing condition Checking size switch ASSY Does size switch ASSY function normally? Replace MCU and Go to step [3]...
Page 248 Tray2 Paper Near Empty FIP Remedy Step Check Initial setting Check the following for evidence of fault. Replace the parts Tray2 low paper sensor replacing Go to step [2] concerned condition Sensor actuator replacing condition Does the error occur even if the paper is Go to step [3] End of work added?
Page 249: How To Use Diag. (C/E) Mode
HOW TO USE DIAG. (C/E) MODE Roles of the Control Panel in Diag. (C/E) Mode (Note: Control panel display may differ depending upon the machine configuration.) 5.Menu 1. LCD 4. Job Cancel/Back button Menu Form Feed Cancel Ready Alarm Back 2.Up/Down button 3.Form Feed/Set button Fig.5-2...
Page 250: Operation Procedure
Operation Procedure After entering Diag. (C/E) mode, select a diagnostic item with the button and press the Form Feed/Set button to determine the selection. If there is a lower menu, select a diagnostic item with the button and press the Form Feed/Set button to determine the selection.
Page 251: Diag. Mode Menu Tree
Diag. Mode Menu Tree Normal Diag CE Maintenance ESS Diag CodeROM Test FontROM Test EEPROM Test DRAM Test Centro Test USB Test REMORA Test Cont Panel Test IOT Test HD Test IOT Diag Digital Input Digital Output Power Save Mode NVM Edit NVM Settings NVM Save...
Page 252 Continued from the up page Test Print CMY 20% [ESS] Gradation [ESS] NIP adjust [ESS] PF Regi adj Parameter P Regi K to Paper P Regi 600 K to M P Regi 600 K to Y P Regi 600 K to C P Regi 1200 K to M P Regi 1200 K to Y P Regi 1200 K to C...
Page 253: Ess Diagnosis
ESS Diagnosis Function: Executing an ESS related diagnosis. Operation procedure: Enter the Diag. (C/E) mode. Select [CE Maintenance ESS Diag] with the buttons. Press the Form Feed/Set button to advance to diagnostic menu selection in [CE Maintenance ESS Diag]. Select a diagnostic item with the button.
Page 254: Iot Diagnosis
Details of the control panel test For a control panel check, each button is pressed to see whether the three LED indicator lights go on or off and how the LCD panel display changes. The table below lists the relationships between the buttons and the LED indicator lights and LCD panel display.
Page 255 4.8.1 Digital input test Function: Displaying a sensor or switch signal level on the LCD panel as "H" or "L" and also the number of changes from "H" to "L" or "L" to "H" Operation procedure: Enter the Diag. (C/E) mode. Select [CE Maintenance IOT Diag] with the buttons.
Page 256 Menu Reference Part/signal name Test method TRAY2 NO PAPER SENSOR Block and unblock the sensor DI-12 2.6.2 with an actuator. TRAY3 NO PAPER SENSOR Block and unblock the sensor DI-13 2.6.3 with an actuator. TRAY1 LOW PAPER SENSOR Increase and decrease paper on DI-15 Tray1 for sensor detection and 2.6.1...
Page 257 Digital output test code table Menu Reference Part/signal name Test method MAIN DRIVE ASSY WARNING! <CAUTION!> (NORMAL SPEED) DO-0 2.4.1 Check by hearing and visually that the motor rotates in normal mode. MAIN DRIVE ASSY WARNING! <CAUTION!> (HALF SPEED) Check by hearing and visually that DO-1 2.4.1 the motor rotates in half-speed...
Page 258 Menu Reference Part/signal name Test method Check by hearing and visually that DO-13 2.9.3 (HIGH SPEED) the fan rotates in high-speed mode. Check by hearing and visually that DO-14 2.9.3 (LOW SPEED) the fan rotates in low-speed mode. TONER MOTOR (Y) Check by hearing and visually that DO-18 2.8.4...
Page 259 WARNING Never touch a high-voltage or live section during high-voltage output. Never touch a drive section during driving. Output a laser beam with all the covers attached. CAUTION To avoid damage, do not keep the laser ON for a long time. (Turn it to OFF within several seconds.) 4.8.3 NVM Edit...
Page 260 4.8.4 NVM Save Function: Saving information from the MCU NVM evacuate list into ESS NVM Operation procedure: Enter the Diag. (C/E) mode. Select [IOT Diag] with the buttons and press the Form Feed/Set button. Go advance to [NVM Save] with the buttons and press the Feed/Set button to display the Confirm Initialize screen.
Page 261: Installation Setting
Installation Setting Function: Setting parameters at printer installation and displaying various counter values Operation procedure: Enter the Diag. (C/E) mode. Select [CE Maintenance Installation Set] with the buttons. Press the Form Feed/Set button to advance to setting/display item selection in [CE Maintenance Installation Set].
Page 262: Test Print
*Electronic billing meter (count) function and backup The monochrome and color meters have backup meters. The printer compares the main and backup meters when the power is turned ON. If there is a discrepancy between the main and backup meters, the hardware of both meters is diagnosed by read/write tests.
Page 263: Parameter Setting
4.11 Parameter Setting 4.11.1 Parameter setting/display Function: Setting and displaying parameters held by IOT in NVM Operation procedure: Enter the Diag. (C/E) mode. Select [CE Maintenance Parameter] with the buttons. Press the Form Feed/Set button to advance to setting/display parameter selection in [CE Maintenance Parameter].
Page 264: 4.11.2 Parameter List Print
4.11.2 Parameter list print Function: Outputting a list of setting and displaying parameters held by IOT in NVM Operation procedure: Enter the Diag. (C/E) mode. Select [CE Maintenance Parameter] with the buttons. Press the Form Feed/Set button to advance to setting/display parameter selection in [CE Maintenance Parameter].
Page 265: Information Print
4.12 Information Print Function: Printing printer information Operation procedure: Enter the Diag. (C/E) mode. Select [CE Maintenance Print info] with the buttons. Press the Form Feed/Set button to advance to print item selection in [CE Maintenance Print info]. Select a print item with the buttons.
Page 266: Diagnosis For Standalone Printer
DIAGNOSIS FOR STANDALONE PRINTER General The test print can be taken place on the standalone printer for operation check. For this purpose, the test print pattern stored in the printer is printed continuously at the continuous printing speed. Printing Method Load paper, and turn the power ON.
Page 267: Test Print Pattern
Test Print Pattern The test print pattern is lattice patterns composed of black (K), cyan (C), magenta (M), and yellow (Y) patterns in this order every 128 dots in vertical and horizontal directions. lack Yellow Cyan Magenta 128dot Approx.2mm 128dot Approx.2mm Fig.5-8 V-57...
Page 268: Nvm List
NVM LIST CAUTION Never write the data to the NVM numbers not listed below, as they are for the system areas of the printer. CAUTION Never write the data to the items which address field is hatched, as they are read only. 12.
Page 269 Address Set value Description Higher Lower Word/Long Fuser PV (L) Fuser PV (M) Fuser PV (H) M/C PV (L) M/C PV (M) M/C PV (H) Environmental temperature at the previous regi. control Number of impressions after regi. control Total impressions (for pro. control) Counter for long cleaning (L) Counter for long cleaning (H) Transfer roll cartridge full detected PV1 (L)
Page 270 Address Set value Description Higher Lower Word/Long Motor rotate time CRUM LIMIT (M) Motor rotate time CRUM LIMIT (H) 82000 Dispensed time Y CRUM LIMIT (L) Dispensed time Y CRUM LIMIT (M) Dispensed time Y CRUM LIMIT (H) 82000 Dispensed time M CRUM LIMIT (L) Dispensed time M CRUM LIMIT (M) Dispensed time M CRUM LIMIT (H 82000...
Page 271 14. Marking Adjust Address Set value Description Higher Lower Plain paper-L Thick paper-L Heavier paper-L Heavier paper-H Envelope Postcard Transparency Label-H Plain paper-L High Gloss Thick paper-L High Gloss Label-L Heavier paper-L BackFace Heavier paper-H BackFace Envelope BackFace Postcard BackFace Plain paper-H Thick paper-H Plain paper-H High Gloss...
Page 272 Address Set value Description Higher Lower Density adjustment (Vdc) Density adjustment (Vdc) Density adjustment (Vdc) Density adjustment (Vdc) Density adjustment (Vdc) Density adjustment (Vdc) Density adjustment (Vdc) Density adjustment (Vdc) Density adjustment (Vdc) Density adjustment (Vcf) Density adjustment (Vcf) Density adjustment (Vcf) Density adjustment (Vcf) Density adjustment (Vcf) Density adjustment (Vcf)
Page 273 Address Set value Description Higher Lower Density adjustment (PCDC_Th M) Density adjustment (PCDC_Th M) Density adjustment (PCDC_Th M) Density adjustment (PCDC_Th M) Density adjustment (PCDC_Th M) Density adjustment (PCDC_Th C) Density adjustment (PCDC_Th C) Density adjustment (PCDC_Th C) Density adjustment (PCDC_Th C) Density adjustment (PCDC_Th C) Density adjustment (PCDC_Th C) Density adjustment (PCDC_Th C)
Page 274 Address Set value Description Higher Lower Label-L Coated Heavier paper-L BackFace Coated Heavier paper-H BackFace Coated Envelope BackFace Coated Postcard BackFace Coated Plain paper-H Coated Thick paper-H Coated Plain paper-H High Gloss Coated Thick paper-H High Gloss Coated 15. User Address Set value Description...
Page 275 25. Fuser (1) Address Set value Description Higher Lower Temperature table Plain Paper Low Large (00) Full speed Temperature table Plain Paper Low Middle (01) Full speed Temperature table Plain Paper Low Small (10) Full speed Temperature table Plain Paper High Large (00) Full speed Temperature table...
Page 276 Address Set value Description Higher Lower Temperature table Thick paper 1 Small (10) Half speed (Low weight) Temperature table Thick paper 2 Large (00) Half speed (Heavy weight) Temperature table Thick paper 2 Middle (01) Half speed (Heavy weight) Temperature table Thick paper 2 Small (10) Half speed...
Page 277: Hex/Dec Conversion Table
HEX/DEC CONVERSION TABLE Decimal HEX Decimal HEX Decimal HEX Decimal HEX Decimal HEX 0100 0101 0102 0103 0104 V-67...
Page 278 Decimal HEX Decimal HEX Decimal HEX Decimal HEX Decimal HEX 0105 0129 014D 0171 0195 0106 012A 014E 0172 0196 0107 012B 014F 0173 0197 0108 012C 0150 0174 0198 0109 012D 0151 0175 0199 010A 012E 0152 0176 019A 010B 012F 0153...
Page 279: Image Quality Trouble Entry Chart
IMAGE QUALITY TROUBLE ENTRY CHART Ask the operator about trouble status. Print internal test pattern. Image quality trouble recurred? Check print instructions Are print instructions correct? Is trouble more than performance Instruct how to submit when compared with standard print job. sample? Acknowledged by operator? Explain to customer.
Page 280: Image Quality Specifications
IMAGE QUALITY SPECIFICATIONS Parallelism Fig.5-10 Diagonal Fig.5-11 Skew Fig.5-12 V-70...
Page 281: Straightness
Straightness Fig.5-13 Magnification Error Fig.5-14 Registration Fig.5-15 V-71...
Page 282: Guaranteed Printing Area
Guaranteed Printing Area Fig.5-16 V-72...
Page 283: Test Print
TEST PRINT 10.1 Test Print Function: Printing an internal test pattern of the printer Operation procedure: While pressing the buttons together, turn the power on to enter the Diag. mode. Enter the password. (Password: Press the button twice and the Form Feed/Set button.) Go advance to [Test Print] with the buttons.
Page 284: Image Quality Fip
IMAGE QUALITY FIP 11.1 Notes on Image Quality Trouble Check Image quality troubles are checked and processed according to the troubleshooting table by trouble phenomena. In case of a continuous or abnormal image defect, check the installation environment at the customer, the document, and the consumables. Installation environment Prepare a power supply of 100/120/220 10 VAC.
Page 285 11.3 Toubleshooting Table by Trouble Phenomena <Fogging> Fig.5-17 Condition: Fogging over print. Toner attaches to margin of print. Initial check: Parts of different specifications, improper installation, damage, deformation, dirt, foreign substance attached, etc. Major parts to be checked: Print head cartridge ASSY, Fuser ASSY, Transfer roll cartridge ASSY, Scanner ASSY, MCU and HVPS PWB, SUB HVPS Item Check...
Page 286 <Streak in the process direction> Fig.5-18 Fig.5-19 Condition: Black or white streaks in the process direction. Initial check: Parts of different specifications, improper installation, damage, deformation, dirt, foreign substance attached, etc. Major parts to be checked: Print head cartridge ASSY, Fuser ASSY, Transfer roll cartridge ASSY, Scanner ASSY, MCU and HVPS PWB, SUB HVPS Item Check...
Page 287 <Streak in the shaft direction> Fig.5-20 Fig.5-21 Condition: Black or white streaks in the shaft direction. Initial check: Parts of different specifications, improper installation, damage, deformation, dirt, foreign substance attached, etc. Major parts to be checked: Print head cartridge ASSY, Fuser ASSY, Transfer roll cartridge ASSY, Scanner ASSY, MCU and HVPS PWB, SUB HVPS Item Check...
Page 288 Rolls related with image quality troubles and interval appearing on prints are shown in the table below. Roll Parts Cycle Magnet roll 29 mm Padolle 7.5 mm Drum 63 mm Print head cartridge ASSY 23 mm IDT 1 132 mm IDT 2 132 mm Transfer roll cartridge...
Page 289 <All black> Fig.5-22 Condition: Print is wholly black. Initial check: Parts of different specifications, improper installation, damage, deformation, dirt, foreign substance attached, etc. Major parts to be checked: Print head cartridge ASSY, Fuser ASSY, Transfer roll cartridge ASSY, Scanner ASSY, MCU and HVPS PWB Item Check...
Page 290 <All blank> Fig.5-23 Condition: Print is wholly white. Initial check: Parts of different specifications, improper installation, damage, deformation, dirt, foreign substance attached, etc. Major parts to be checked: Print head cartridge ASSY, Fuser ASSY, Transfer roll cartridge ASSY, Scanner ASSY, MCU and HVPS PWB, Toner cartridge Item Check...
Page 291 <Too light image> Fig.5-24 Condition: Print is wholly light. Initial check: Parts of different specifications, improper installation, damage, deformation, dirt, foreign substance attached, etc. Major parts to be checked: Print head cartridge ASSY, Fuser ASSY, Transfer roll cartridge ASSY, Scanner ASSY, MCU and HVPS PWB, SUB HVPS Item Check...
Page 292 <Black (color) points> Fig.5-25 Condition: Black (color) circles remain on the print. Initial check: Parts of different specifications, improper installation, damage, deformation, dirt, foreign substance attached, etc. Major parts to be checked: Print head cartridge ASSY, Fuser ASSY, Transfer roll cartridge ASSY, Scanner ASSY, MCU and HVPS PWB, SUB HVPS Item Check...
Page 293 <Paper skew> Fig.5-26 Condition: Image is printed in skewed position. Initial check: Parts of different specifications, improper installation, damage, deformation, dirt, foreign substance attached, etc. Major parts to be checked: Paper feeder, Chute ASSY REGI, Chute ASSY out, Transfer roll cartridge ASSY, Print head cartridge ASSY, Fuser ASSY, Scanner ASSY Item Check...
Page 294 <Crease> Condition: Print on creased paper. Initial check: Parts of different specifications, improper installation, damage, deformation, dirt, foreign substance attached, etc. Major parts to be checked: Paper feeder, Chute ASSY REGI, Chute ASSY out, Transfer roll cartridge ASSY, Print head cartridge ASSY, Fuser ASSY Item Check Remedy...
Page 295 CHAPTER VI...
Page 296: Chapter Vi Diagrams
CHAPTER VI DIAGRAMS ..............VI-1 1.PREFACE ...................... VI-1 1.1 How to Use the BSD......................VI-1 1.2 Explanations of Symbols ..................... VI-1 1.3 Signal Name ........................VI-4 1.4 DC Voltage .......................... VI-4 1.5 Input/Output Test......................... VI-4 2. BSD (BLOCK SCHEMATIC DIAGRAM) 2.1 Standby Power 2.1.1 AC power on and DC distribution................
Page 297 2.8.6 Transfer and cleaning ..................... VI-30 2.8.7 ADC and environment sensing ................VI-31 2.8.8 Monitoring........................ VI-32 2.9 Fusing and Transportation 2.9.1 Fusing and fuser heat control.................. VI-33 2.9.2 Fuser drive control ....................VI-34 2.9.3 Fan control ......................VI-35 2.9.4 Exit and invert transportation .................. VI-36 2.9.5 Exit and invert mechanism ..................
Page 298: Chapter Vi Diagrams
CHAPTER VI DIAGRAMS 1. PREFACE 1.1 How to Use the BSD 1. Enter the chain specified in the chapter of troubleshooting. 2. Or enter the corresponding chain by referencing the table of contents. 3. Analyze the fault in the chain. 4.
Page 299 Represents a signal line connected vertically. Represents a signal line connected horizontally. Indicates that the signal line is connected in the same function. In this example, the destination of the ZONE signal line is described in the zone of E-3. Indicates that the signal line is connected in the same function.
Page 300 Represents a document or paper and its flow direction. Represents a thermal, optical, or pneumatic signal and its flow direction. Means that the information indicated by the arrow is after 1V. Means that the information indicated by the arrow is before 1V.
Page 301 1.3 Signal Name Signal Name Signal name configuration REGI SENSOR SENSED +5VDC Part name Status Logical value Voltage at signal level H This signal is L when paper is detected at the registration sensor but H (+5 VDC) when not. 1.4 DC Voltage Unless otherwise specified in a note or other, the DC voltage is measured between each test point and the frame and its value is within the following ranges:...
Page 302: Standby Power
2.1.1 AC power on and DC distribution DRIVE PWB MCU AND HVPS PWB PL15.1 PL15.1 DI-7 SWITCH 2.1.2 INTERLOCK OPEN INTERLOCK OPEN CONTROL SIGNAL (L)+3.3VDC J11 6 LOGIC LVPS PL15.1 HARNESS ASSY AC SW PL15.1 DC COM MAIN LOW VOLTAGE SWITCH GENERATION FEEDER PWB...
Page 303 2.1.2 Monitoring MCU AND HVPS PWB CONTROL PANEL PL15.1 PL1.1 2.1.1 INTERLOCK OPEN CONTROL SIGNAL LOGIC Close Front Cover Imaginary Line 2.1 Standby Power VI-6...
Page 304 MCU AND HVPS PWB CONTROL PANEL PL15.1 PL1.1 CONTROL LOGIC J221 J2211 1 - 20 1 - 20 1 - 20 SHILD SHILD CABLE CABLE brother NETWORK READY HL-4000CN Menu Form Feed Cancel Ready Alarm Back 2.2 Mode Selection VI-7...
Page 305 2.3.1 Machine self test MCU AND HVPS PWB PL15.1 2.3.3 IOT ERROR CONTROL LOGIC ESS PWB PL16.1 EEPROM EEPROM (U8) (U9) P/J 14 P/J 1 RAM slot PL16.1 CONTROL RAM 128MB 50 DIMM When replacing ESS LOGIC PWB,remove EEPROM(U8,U9) from ESS PWB and install P/J 10 them on new ESS PWB.
Page 306 2.3.2 CRUM and billing MCU AND HVPS PWB PL15.1 2.3.3 CRUM DATA CONTROL LOGIC BRACKET CONN ASSY Print head CONN ASSY BRACKET DOUBLE CRUM CRUM MC cartridge ASSY CRUM MC CRUM DI-32 PLUG PL12.3 PL12.3 PL12.3 PL12.3 PL11.1 J140 CRUM DATA P71 5 J710 5 CRUM CLOCK...
Page 307: 2.3.3 Monitoring
2.3.3 Monitoring MCU AND HVPS PWB CONTROL PANEL NIC Flash ROM Boot Module Checksum PL15.1 PL1.1 03-340 IOT Firmware Error 16-331 Error NIC RAM R/W Test Error IOT NVRAM Error 2.3.1 03-356 16-332 CONTROL IOT ERROR LOGIC 03-340 NIC Flash ROM Application Module IOT Fuser Life Over 10-351 16-333...
Page 308 2.4.1 Main drive control MAIN DRIVE ASSY DRIVE PWB DO-0 MCU AND HVPS PWB PL14.1 (NORMAL SPEED) PL15.1 PL15.1 DO-1 (HALF SPEED) CONTROL MOTOR J41 34 CLOCK A LOGIC DRIVE CLOCK B DC COM CLOCK XB CLOCK B DC COM CLOCK A CLOCK XA CLOCK XA...
Page 309 2.5 OPTICS(Scanner) 2.5.1 Laser scanning image and control SCANNER ASSY PL11.1 MCU AND HVPS PWB PL15.1 QBLD PWB MCU AND HVPS PWB SOS PWB QBLD PWB VIDEO DATA Y J151 1 PL15.1 CONTROL LASER J153 LOGIC CONTROL VIDEO DATA M +3.3VDC +5VDC CONTROL...
Page 310 2.5.2 Monitoring MCU AND HVPS PWB CONTROL PANEL PL15.1 PL1.1 IOT Scanner Failure 2.5.1 6-370 CONTROL SOS SENSED SIGNAL LOGIC 6-370 Imaginary Line 2.5 OPTICS(Scanner) VI-13...
Page 311 2.6 Paper Supplying 2.6.1 Tray1 paper stacking TRAY1 2.7.1 PAPER STACK TRAY1 SENSOR AND SWITCHES POSITIONED OPERATOR LOADED PAPER MCU AND HVPS PWB PL15.1 TRAY1 SIZE SWITCH +3.3VDC ASSY DI-18 PL4.2 DRIVE PWB TRAY1 TRAY1 SIZE SWITCH1 2.6.4 PL15.1 SIZE SWITCH1 CONTROL J471 ON(L) +3.3VDC...
Page 312 2.6.2 Tray2 paper stacking TRAY2 PAPER STACK 2.7.3 TRAY2 SENSOR AND SWITCHES POSITIONED OPERATOR LOADED PAPER MCU AND HVPS PWB PL15.1 TRAY2 SIZE SWITCH ASSY DI-20 DRIVE +3.3VDC PL17.2 CONNE DOUBLE TRAY2 TRAY2 PL15.1 CTOR PLUG SIZE SWITCH1 SIZE SWITCH1 2.6.4 CONTROL J821...
Page 313 2.6.3 Tray3 paper stacking TRAY3 PAPER STACK 2.7.4 TRAY3 SENSOR AND SWITCHES POSITIONED OPERATOR LOADED PAPER MCU AND HVPS PWB PL15.1 TRAY3 SIZE SWITCH DI-28 ASSY DRIVE +3.3VDC PL17.2 CONNE DOUBLE TRAY3 TRAY3 PL15.1 CTOR PLUG SIZE SWITCH1 CONTROL SIZE SWITCH1 2.6.4 J831 ON(L) +3.3VDC...
Page 314 2.6.4 Monitoring MCU AND HVPS PWB CONTROL PANEL PL15.1 PL1.1 2.6.1 TRAY1 CONTROL SIZE SWITCH1 SIGNEL LOGIC Push in Tray 1 2.6.1 TRAY1 Check Paper in Tray 1 SIZE SWITCH2 SIGNEL 2.6.1 TRAY1 SIZE SWITCH3 SIGNEL 2.6.2 TRAY2 SIZE SWITCH1 SIGNEL Push in Tray 2 2.6.2 TRAY2...
Page 315 2.7.1 Tray1 paper feeding TRAY1 PAPER FEED MECHANISM 2.4.1 2.7.6 TRAY1 TRAY1 FEED DRIVE FEED PAPER TRAY1 2.6.1 PAPER STACK POSITIONED MCU AND HVPS PWB PL15.1 DRIVE PWB TRAY1 FEED DO-28 PL15.1 SORENOID DOUBLE PL4.3 PLUG CONTROL TRAY1 FEED SOLENOID ON(L) +24VDC LOGIC J42 21...
Page 316 2.7.2 MSI paper feeding MSI PAPER DEEF MECHANISM 2.4.1 FEED DRIVE 2.7.6 FEED PAPER OPERATOR LOADED PAPER MCU AND HVPS PWB PL15.1 MSI FEED DO-24 SOLENOID DOUBLE DOUBLE PL7.2 PLUG PLUG MSI FEED SOLENOID CONTROL ON(L) +24VDC P139 J139 P132 J132 LOGIC DC COM...
Page 317 2.7.3 Tray2 paper feeding TRAY2 PAPER FEED MECHANISM 2.7.5 2.7.6 TRAY2 TRAY2 FEED DRIVE FEED PAPER TRAY2 2.6.2 PAPER STACK POSITIONED MCU AND HVPS PWB PL15.1 TRAY2 FEED FEEDER PWB DO-52 SORENOID PL17.4 DOUBLE DOUBLE CONNECTOR PL17.3 PLUG TRAY2 FEED SOLENOID PLUG CONTROL ON(L) +24VDC...
Page 318 2.7.4 Tray3 paper feeding TRAY3 PAPER FEED MECHANISM 2.7.5 TRAY3 2.7.6 TRAY3 FEED DRIVE FEED PAPER TRAY3 2.6.3 PAPER STACK POSITIONED MCU AND HVPS PWB PL15.1 TRAY3 FEED FEEDER PWB DO-56 SORENOID PL17.4 DOUBLE CONNECTOR DOUBLE PL17.3 PLUG CONTROL TRAY3 FEED SOLENOID PLUG P210 J210...
Page 319 2.7.5 Feeder drive control MCU AND HVPS PWB FEEDER PWB DO-10 FEEDER DRIVE PL15.1 PL17.4 (NORTMAL SPEED) ASSY DO-11 (HALF SPEED) CONNECTOR DOUBLE PL17.4 CONTROL PLUG MOTOR LOGIC CLOCK A P210 J810 CLOCK A J210 P810 DRIVE YEL YEL DC COM CLOCK B CLOCK B YEL YEL...
Page 320 2.7.6 Registration 2.8.6 REGISTRATED PAPER 2.4.1 REGI ROLL DRIVE REGISTRATION 2.4.1 MSI TRANSPORT ROLL DRIVE 2.9.4 DUPLEX FEED PAPER 2.7.2 MCU AND HVPS PWB DO-20 FEED PAPER PL15.1 REGI CLUTCH PL10.1 REGI CLUTCH ON(L) +24VDC CONTROL LOGIC 2.7.1 TRAY1 PAPER DC COM ROLL DRIVE +24VDC...
Page 321 2.7.7 Monitoring MCU AND HVPS PWB CONTROL PANEL PL15.1 PL1.1 2.7.2 MSI NO PAPER CONTROL SENSED SIGNAL LOGIC Load in MP Tray stands for paper size Check Paper in MP Tray 2.7.6 REGI PAPER SENSED SIGNAL Feed Jam Open A-Cover Feed Jam Check Tray 2.7.6 OHP PAPER...
Page 322 2.8.1 Charging and exposure CHARGING MCU AND HVPS PWB Print head cartridge ASSY PL15.1 PL11.1 DO-30 HVPS HTC(Y) J804 HTC POWER REFRESHER(Y) J805 REFRESHER POWER HTC(M) REFRESHER(M) HTC(C) REFRESHER(C) HTC(K) Print head cartridge ASSY REFRESHER(K) EXPOSURE 2.8.2 LATENT IMAGE(Y) 2.5.1 LASER SCAN 2.8.2 IMAGE(Y)
Page 323 2.8 XEROGRAPHICS 2.8.2 Development DRIVE MECHANISM MCU AND HVPS PWB DRIVE PWB DEVE DRIVE ASSY DO-a PL15.1 PL15.1 (NORMAL SPEED) PL14.1 DO-b (HARF SPEED) CONTROL MOTOR CLOCK B CLOCK A LOGIC DRIVE CLOCK XB DC COM CLOCK B CLOCK A DC COM CLOCK XA CLOCK XA...
Page 324 2.8.3 Toner cartridge set MCU AND HVPS PWB PL15.1 DRIVE PWB TONER +3.3VDC DRIVE PWB CARTRIDGE DI-8 PL15.1 PL15.1 CONTROL SWITCH ASSY (Y) 2.8.8 LOGIC TONER CARTRIDGE(Y) TONER CARTRIDGE(Y) PL12.2 J431 J431 J12 27 SET SIGNAL SET(L) +3.3VDC J51 11 DC COM (CH1.1) TONER...
Page 325 2.8 XEROGRAPHICS 2.8.4 Toner dispense control MCU AND HVPS PWB MCU AND HVPS PWB PL15.1 TONER MOTOR DRIVE PWB PL15.1 ASSY(K) DRIVE PWB TONER MOTOR PL15.1 DO-1e PL12.2 PL15.1 ASSY(Y) CONTROL DO-18 PL12.2 LOGIC CLOCK A CONTROL CLOCK A J514 LOGIC CLOCK A CLOCK A...
Page 326 2.8.5 Low toner sensing MCU AND HVPS PWB DI-c PL15.1 DRIVE PWB LOW TONER DRIVE PWB DI-d PL15.1 SENSOR(Y) PL15.1 DI-e PL12.2 +3.3VDC NO TONER DI-f J441 J441 NO TONER(Y) CONTROL CHECK 2.8.8 NO TONER LOGIC NO TONER CONTROL SENSED(L) +3.3VDC SENSED SIGNAL DC COM N.C.
Page 327 2.8 XEROGRAPHICS 2.8.6 Transfer and cleaning SUB HVPS MCU AND HVPS PWB DO-4c PL12.1 Transfer roll cartridge PL15.1 2.9.1 UNFUSED UNIT ASSY PRINT PL9.1 ON(L) +24VDC J5011 2 CONTROL LOGIC CONTROL Transfer roll cartridge Transfer roll cartridge J5030 DTS REF DO-48 Transfer roll cartridge PLUS ON(L) +24VDC...
Page 328 2.8.7 ADC and environment sensing HUM TEMP MCU AND HVPS PWB SENSOR PL15.1 MCU AND HVPS PWB DOUBLE DOUBLE PL4.2 PL15.1 PLUG PLUG 2.8.8 HUMI HUMI SIGNAL P2361 1 J2361 J231 1 J231 J2361 3 P2361 CONTROL LOGIC +5VDC 2.8.8 (CH1.1) TEMP TEMP SIGNAL...
Page 329 2.8 XEROGRAPHICS 2.8.8 Monitoring MCU AND HVPS PWB CONTROL PANEL PL15.1 PL1.1 IOT Envirnment Sensor Error 2.8.3 10-354 TONER CARTRIDGE(Y) CONTROL SET SIGNAL LOGIC Reinsert Yellow Toner (Y) IOT CTD Sensor Error 2.8.3 9-340 TONER CARTRIDGE(M) SET SIGNAL Reinsert Magenta Toner (M) IOT Low Density Error TONER CARTRIDGE(C) 9-342...
Page 330 2.9.1 Fusing and fuser heat control FUSING 2.8.6 UNFUSED 2.9.3 HEAT PRINT FUSED 2.9.4 PRINT 2.9.2 FUSER DRIVE MCU AND HVPS PWB PL15.1 FUSER ASSY +3.3VDC CONTROL EXIT DI-2 PL9.1 LOGIC EXIT SENSOR CONN- DOUBLE PAPER ECTOR PLUG EXIT PAPER SENSED 2.9.6 J232...
Page 331: 2.9 Fusing And Transportation
2.9 Fusing and Transportation 2.9.2 Fuser drive control MCU AND HVPS PWB DRIVE PWB FUSER DRIVE PL15.1 ASSY PL15.1 DO-d (NORMAL SPEED) PL6.2 DO-e (HALF SPEED) CONTROL MOTOR LOGIC CLOCK B J41 29 DRIVE CLOCK A DC COM CLOCK XB CLOCK B CLOCK A DC COM...
Page 332: Fan Control
2.9.3 Fan control COOLING FANS 2.9.1 HEAT AIR MCU AND HVPS PWB DO-13 MCU AND HVPS (HIGH SPEED) PL15.1 DRIVE PWB DO-14 (LOW SPEED) PL15.1 DOUBLE FUSER FAN DRIVE PL15.1 PLUG PL1.1 FUSER FAN FUSER FAN CONTROL +3.3VDC DI-30 PL15.1 STOP J137 LOGIC...
Page 333 2.9 Fusing and Transportation 2.9.4 Exit and invert transpotation 2.9.1 PRINT TO FUSED PRINT FACE DOWN TRAY 2.9.5 ROLL MID DRIVE 2.9.5 ROLL DUP DRIVE ROLL EXIT 2.9.5 DRIVE 2.7.6 DUPLEX FEED PAPER MCU AND HVPS PWB PL15.1 +3.3VDC DI-1 DOUBLE DUP JAM SENSOR CONTROL...
Page 334: 2.9.5 Exit And Invert Mechanism
DO-3 2.9.5 Exit and invert mechanism (FORWARD NORMAL SPEED) DO-4 (FORWARD HALF SPEED) DO-5 (FORWARD DOUBLE SPEED) DO-3 (REVERSE NORMAL SPEED) MCU AND HVPS PWB DRIVE PWB DUP MOTOR ASSY DO-4 (REVERSE HALF SPEED) PL15.1 PL15.1 PL8.1 DO-5 (REVERSE DOUBLE SPEED) DOUBLE CONTROL MOTOR...
Page 335: 2.9.6 Monitoring
2.9.6 Monitoring MCU AND HVPS PWB CONTROL PANEL PL15.1 PL1.1 IOT Fuser Detached 2.9.1 10-317 EXIT PAPER CONTROL SENSED SIGNEL LOGIC Feed Jam Open A/B-Cover IOT Fuser Failure 10-350 2.9.1 TEMP SENSOR SIGNAL 10-317 IOT Fan Motor Failure 1-360 10-350 2.9.3 FUSER FAN FAIL SIGNAL...
Page 336 CHAPTER VII...
Page 337: Chapter Vii Plug/Jack (P/J) Connector Locations
CHAPTER VII PLUG/JACK (P/J) CONNECTOR LOCATIONS ..VII-1 1. LIST OF P/J....................VII-1 1.1 Base Engine ........................VII-1 1.2 2 Tray Module......................... VII-3 2. P/J LAYOUT DIAGRAM ................VII-4 2.1 IOT Top........................... VII-4 2.2 IOT Front/RH ........................VII-5 2.3 MCU and HVPS PWB/ESS PWB ................... VII-6 2.4 Tray 1..........................
Page 338: Base Engine
CHAPTER VII PLUG/JACK (P/J) CONNECTOR LOCATIONS LIST OF P/J The following tables list the connector (P/J) coordiates corresponding to 7.2 P/J Layout Diagram. Base Engine Coordiates Remarks H-32 Connector for ESS PWB memory J-32 Connector for ESS PWB parallel interface J-43 Connects MCU and HVPS PWB and harness ASSY DRV1 I-43...
Page 339 Coordiates Remarks I-32 Connector for connecting to EEPROM on ESS PWB B-32 Connects harness ASSY EEPROM and harness ASSY CRUM J-32 -- (ESS PWB) H-32 Jamper pin on ESS PWB Connects harness ASSY DUP and DUP motor ASSY Connects harness ASSY front 2 and MSI feed solenoid Connects harness ASSY front 2 and DUP JAM sensor Connects harness ASSY front 2 and full stack sensor Connects harness ASSY front 2 and MSI no paper sensor...
Page 340: Tray Module
Coordiates Remarks J-49 Connects harness ASSY feeder and tray1 size switch ASSY Connects harness ASSY feeder and tray 1 no paper sensor H-57 Connects harness ASSY feeder and tray 1 low paper sensor G-49 Connects harness ASSY feeder and tray1 feed clutch H-49 Connects harness ASSY feeder and tray 1 turn clutch ASSY Connects harness ASSY TNR and toner motor ASSY (Y)
Page 341: P/J Layout Diagram
P/J LAYOUT DIAGRAM IOT Top VII-4...
Page 342: Iot Front/Rh
IOT Front/RH VII-5...
Page 343: Mcu And Hvps Pwb/Ess Pwb
MCU and HVPS PWB/ESS PWB VII-6...
Page 344 Tray1 VII-7...
Page 345: Tray Module
2 Tray Module VII-8...

Brother HL-4000CN Service Manual

Table of Contents

Table of Contents

Chapter I Specifications

1 Product Name

2 Dimensions / Weight (Main Unit

3 Space Requirements

4 Printer System Configuration

5 Optional Products

6 System Characteristics

7 Print Function

8 Image Processing Functions

9 Image Addition Function

10 Page Layout Functions

11 Page Output Sequence Control Functions

12 Separator

14 Other Functions

16 Host Interface

17 Ieee1284

19 Utility Software

21 Operating Supply Voltage

22 Rated Power Consumption

23 Noise

24 Firmware Update Function

25 Tools and Service Consumables

26 Consumables

Chapter II Installation

Modes/Control

Chapter III Structure of System Components

Chapter IV Assembly / Disassembly

Before Starting Disassembly

Chapter V Troubleshooting

Chapter V Troubleshooting

1 Preface

2 Level 1 Troubleshooting

3 Level 2 Troubleshooting

4 How to Use Diag. (C/E) Mode

5 Diagnosis for Standalone Printer

6 Nvm List

7 Hex/Dec Conversion Table

8 Image Quality Trouble Entry Chart

10 Test Print

11 Image Quality Fip

Chapter VI Diagrams

Quick Links

SERVICE MANUAL

Chapters

Troubleshooting

Related Manuals for Brother HL-4000CN

Summary of Contents for Brother HL-4000CN