LASER PRINTER SERVICE MANUAL MECHANICS & ELECTRONICS...
No part this publication may be reproduced in any form or by any means without permission in writing from the publisher. Trademarks: BR-Script, DX-2000 and LT-2000 are registered trademarks of Brother Industries, Ltd. Centronics is a registered trademark of Genicom Corporation. PostScrip is a registered trademark of Adobe Systems Incorporated.
PREFACE This service manual contains basic information required for after-sales service of the laser printer (hereinafter referred to as “this machine” or “the printer”). This information is vital to the service technician in maintaining the high printing quality and performance of the printer. This manual consists of the following chapters: CHAPTER I : GENERAL...
CONTENTS CHAPTER I GENERAL..............I 1. FEATURES......................I-1 2. SPECIFICATIONS ...................I-1 3. SAFETY INFORMATION .................I-6 3.1 Laser Safety (110 - 120V Model only)...................I-6 3.2 CDRH Regulations (110 - 120V Model only) ................I-7 3.3 Additional Information ......................I-7 4. PARTS OF THE PRINTER ................I-8 4.1 External Views ........................I-8 4.2 Cross Sectional View ......................I-9 5.
CHAPTER III ELECTRICAL SYSTEM ..........III-1 1. MAIN PCB......................III-1 1.1. Outline..........................III-1 1.2. Video Controller Circuit ......................III-2 1.3. Engine Controller Circuit ....................III-6 2. PAPER FEED DRIVE CIRCUIT..............III-7 3. DISPLAY CIRCUIT ..................III-9 3.1 Outline..........................III-9 3.2 Operation ..........................III-9 4. LOW-VOLTAGE POWER SUPPLY ASSY ..........III-10 4.1 Outline..........................III-10 4.2 Protection Functions ......................III-10 5.
1.19 Tray Sensor Holder ......................IV-17 1.20 Roller Holder ........................IV-18 1.21 Paper Pick-up Roller Assy, Bearing ................IV-18 1.22 Paper Pick-up Solenoid....................IV-20 1.23 Paper Feed Motor Assy ....................IV-20 1.24 MP Tray Cover ....................... IV-21 1.25 MP Tray Assy......................... IV-22 1.26 Paper Path Separation Plate, Paper Path Separation Film ...........
6. OPERATION....................VI-23 6.1 Line Inspection Mode Procedure ..................VI-23 6.2 DRAM Test........................VI-25 7. STATUS MESSAGE LIST ................VI-26 CHAPTER VII TROUBLESHOOTING..........VII-1 1. HIDDEN FUNCTIONS ................. VII-1 1.1 Holding down Specified key(s) at Power on..............VII-1 1.2 Off-line and Hold down Mode + FF CONT keys ............... VII-2 1.3 Off-line and Hold down CONT + SEL keys ..............
CHAPTER I GENERAL FEATURES This high-speed, non-impact (low-noise) printer is based on electrophotography, electronics and laser technology. The printer is compact and easy to carry. The internally-storable, front-loading paper cassette enables you to save an occupation space for the machine; the printer can now be installed in a smaller place.
Printing system Photosensitive drum Charging Charging Roller Exposure Laser scanning system Development Toner projection development system Paper feed Cassette or manual feed Image transfer Roller method Separation Natural(utilizing a small drum radius), Static charge eliminator Fixing Heated fixing roller Toner supply Included in the replaceable EP-ED HC cartridge Life expectancy 9,000 pages/cartridge...
(13) Effective printing area Printable area Figure 1.1 Printable Area Effective printable area is referred to as a area within which is guaranteed the printing of all interface signal data on a hard copy without any omission. The tables below shows the effective printable area for each paper size. Table 1.1 Plain Paper SIZE A (mm)
(14) Standard interfaces Automatic interface selection Centronics, Bi-directional parallel RS-232C serial Baud rate 150, 300,1200, 2400, 4800, 9600 19200, 38400, 57600, 115200bps Stop bit 1 bit Start bit 1 bit or 2 bits Data length 7 bits or 8 bits Parity Odd, Even, or None Protocol...
Storage conditions Printer Temperature Normal (total storage time x 9/10) 0 ~ 35 C Severe (total storage time x 1/10) High 35 C ~ 60 C -20 C ~ 0 C Temperature change (within 3 minutes) High 60 C 15 C -20 C 25 C Relative humidity...
CDRH Regulations (110 ~ 120V Model only) The center for Devices and Radiological Health (CDRH) of the US Food and Drug Administration implemented regulations for laser products on August 2, 1976. These regulations apply to laser products manufactured from August 1, 1976. Compliance is mandatory for products marketed in the United States.
PARTS OF THE PRINTER External Views Upper cover Face-up print delivery port Control panel Centronics interface connector MP tray RS-232C interface connector Tray 1 USB port Power switch Duplex unit, Lower tray unit connector PCMCIA card slots Rating label Fan outlet port AC inlet Figure 1.4...
Cross Sectional View Control panel Low-voltage power supply assy EP-ED HC cartridge High-voltage power supply assy Photosensitive drum Paper cassette (Tray 1) Laser unit Pick-up rollers Transfer unit MP tray Face-down tray Registration rollers Print-delivery path Fixing unit Figure 1.5...
STORAGE AND HANDLING OF EP-ED HC CARTRIDGES An EP-ED HC cartridge is influenced by the storage conditions even if it is sealed in its package, so its life depends on the way in which it is used or stored. EP-ED HC cartridges should be handled carefully.
CHAPTER II THEORY OF OPERATION This chapter describes the printer functions, the relationship between the electrical systems and mechanical systems, and the timing of operations. Striped conduits ( ) indicate mechanical linkages; solid thin arrows ( appearing with a signal name indicate the transmission of single control signals and outlined thick arrows ( ) indicate the transmission of groups of signals.
Main Drive The power necessary for driving the printer is supplied by the main motor, the paper feed motor and the laser unit motor. The main motor is controlled by the main motor drive signal (MDRIVE) output from the main PCB, and the paper feed motor is controlled by the paper feed motor drive signal output from the main PCB, and the laser unit motor is controlled by the laser unit motor drive signal (SDRIVE) output from the main PCB.
Basic Sequence of Operations Timing for two consecutive prints on A4 paper. Power on Print WAIT STBY PRINT STBY Ready lamp 180 C 180 C control 210 C control control Fixing heater Main motor Laser unit motor Paper feed motor 0.12 sec 1.50 sec 1.38 sec 0.18 sec...
LASER SYSTEM To external device Main PCB DATA VOFF Laser unit driver Collimator lens Scanning mirror Cylindrical lens Laser unit motor Optical sensor Focusing lenses Beam detect mirror Reflective mirror Photosensitive drum Figure 2.4 In response to the print signal transmitted from the external device, the main PCB generates the drive signals (DATA,VOFF) for the laser diode and sends the signals to the laser unit.
IMAGE FORMATION SYSTEM Outline The image formation system is the main part of the printer. The print information, after input from the video controller circuit into the engine controller circuit as a TVDO signal, forms a toner image on the photosensitive drum. Then the toner image is transferred onto the paper by the transfer charging roller.
Transfer stage Step 4 Transfer (+) Step 5 Separation Fixing stage Step 6 Fixing Drum cleaning stage Step 7 Drum cleaning Electrostatic latent image formation stage 2. Scanning exposure Paper path Direction of drum rotation 1. Primary charge 3. Develop Developing stage ment Drum cleaning stage...
Step 1 Primary charge Primary charging roller AC bias Photosensitive drum DC bias Figure 2.9 As preparation for latent image formation, a uniform negative potential is applied to the photosensitive drum surface. The printer uses the charging method that directly charges the drum for the primary charge.
3.2.2 Developing stage Development places particles of toner onto the areas of the drum that have been cleared of charge by the laser beam. This makes a visible image. This printer uses the toner projection development method with a single-component toner. Step 3 Development Blade Stirrer...
3.2.3 Transfer stage In the transfer stage, the toner image is transferred from the drum surface to the paper. Step 4 Transfer Photo- sensitive Paper drum Transfer charging roller Figure 2.13 A positive charge applied to the back of the paper attracts the negatively charged toner particles to the paper.
3.2.4 Fixing stage The toner image transferred to the paper in the transfer stage is held only by electrostatic attraction and slight physical adhesion, so even a light touch will smear the image. In the fixing stage, the toner image is fixed by heating the paper and applying pressure. This fuses the toner particles to the paper to make a permanent image.
Operation When the engine controller circuit receives a print signal (PRINT) or a pre-feed signal (PRFD) from the video controller circuit, the engine controller circuit drives the main motor to rotate the photosensitive drum. After the drum surface is charged negatively by the primary charge roller, the laser beam modulated by a DATA signal scans the drum surface to from a latent image on the drum.
PAPER PICK-UP/FEED SYSTEM Outline If a tray1 paper pick-up roller solenoid drive signal (PUCL1) is input to the circuit while the paper feed motor is rotating, the paper pick-up solenoid comes on and the paper pick-up roller solenoid is engaged. As a result, the paper pick-up roller rotates to feed paper down to the photosensitive drum.
Cassette Feed When the fixing rollers reach the specified temperature while a cassette with paper is in the printer, the READY lamp changes from flashing to lighting. When the engine controller circuit receives PRNT or PRFD signal from the video controller circuit, the paper feed motor starts rotation.
MP Tray Feed The timing of the MP tray feed is identical to the timing of the cassette paper feed except for the following points: The paper empty sensors are different. Cassette feed : Tray1 paper empty sensor MP tray feed : MP tray paper empty sensor The pick-up roller solenoids are different.
Paper Jam Detection The printer has a registration sensor and a paper eject sensor at the paper outlet to detect whether the printed paper has been fed correctly. A paper jam is detected by whether the paper is present at the sensor at the check periods programmed in the engine CPU memory.
Jam inside (2) STBY PRINT Main motor Paper feed motor Paper ejection sensor 1.50 sec 1.50 sec Normal Jam check Figure 2.23 Jam rear STBY PRINT Main motor Paper feed motor Paper ejection 5.74 sec sensor 5.74 sec Normal Jam check Figure 2.24 If the stuck-full sensor detects a status that the paper is inside the printer for 20 seconds, it sends out the full signal.
CHAPTER III ELECTRICAL SYSTEM Electric signal levels are expressed by “High” (approximate the supply voltage) or “Low” (approximate 0V). Signals with hyphen or slash, such as -FSRD or FSRD/, are low-active and signals without hyphen or slash, such as FSRD, are high-active signals. MAIN PCB Outline The Main PCB consists of the Video Controller Circuit and the Engine Controller Circuit.
Video Controller Circuit CPU block CPU(#33) MB86832-100 manufactured by Fujitsu RISC chip Clock speed: 33.1768 Mhz (3 times faster than the base clock) Appearance: 178-pin QFP Voltage: 3V ASIC/Gate Array Block #19 MB87F1611(Fujitsu) - 240-pin QFP Controls the address decoder, timers and interfaces (Centronics and RS-232C). Controls HRC(High Resolution Control), GSC(Gray Scale Control) and economy mode, drivened by 3V.
ROM block ROMs store the CPU control program and font data. ROMs are two 32Mbit masked ROMs. Optional sockets are available for two 8Mbit EPROM (µPD27C8000DZ-120 - NEC or equivalent) for expansion. ROM access time should be less than 120nsec. DRAM block DRAMs are used for receiving buffer or working area of the CPU.
0000_0000 There are 4 CS terminals for CSROM#0 - CSROM#3. 2MB or 4MB is selectable from CSROM#0 - CSROM#2. 0040_0000 If the both are selected, it will become one memory space 0080_0000 (4 bunk) and ROM#0 supports upto 16MB. CSROM#3 is a rest of the memory space with 256MB Font card 1 0100_0000...
Option I/F Connector Option ROM Socket Centronics I/F CPU (VIDEO) ASIC MB87F1611 USB I/F RS232C I/F SIMM Block DRAM Block MASK ROM (Flat package) Control Panel Connector ASIC MPD65632GC CPU (ENGINE) PCMCIA Card Connector Figure 3.4 Main PCB III-5...
Engine Controller Circuit Laser Unit Primary charging roller Transfer roller High-Voltage Power Supply Assy Developing cylinder Toner sensor Engine Controller Pick-up Solenoid Circuit MP Tray Pick-up Solenoid Paper Feeder Pick-up Motor Detectors Main Motor Fixing Unit Low-Voltage Power Supply Assy Figure 3.5 Engine Controller Block Diagram Components in the Circuit (refer to the next page) Engine Control CPU...
PAPER FEED DRIVE CIRCUIT Connector to Main PCB Pick-up Motor Drive Circuit and Connector Pick-up Solenoid Drive Circuit and Connector Multi Purpose Tray Pick-up Solenoid Drive Circuit and Connector Sensors E-1. Tray1 Paper Empty Sensor E-2. Multi Purpose Tray Paper Empty Sensor E-3.
Figure 3.7 Paper Feed/Size-SW PCB Circuit III-8...
DISPLAY CIRCUIT Outline The control panel of this printer has four LED lamps, one LCD display, and eight switches. The control panel is connected to the Main PCB and its functions are as follows: The LCD shows the printer status and error message in alpha-numeric characters. The LED lamps indicate the operating conditions of the printer.
LOW-VOLTAGE POWER SUPPLY ASSY Outline The low-voltage power supply assy consists of the low-voltage generating block (hereinafter the DC block) and the heater drive circuit block to turn the heater on (hereinafter the AC block). When the power switch (SW1) is turned on, AC power is supplied to the low-voltage power supply assy.
HIGH-VOLTAGE POWER SUPPLY ASSY Outline The High-Voltage Power Supply Assy supplies the high-voltage for the charging roller, the developer cylinder and the transfer roller according to the engine CPU’s control signals. The block diagrams are shown Fig 3.10 and 3.11. Operation of the Components of the High-Voltage Power Supply Assy Primary charging When input signal/HV1AC gets the Low level, the primary high-voltage AC is...
High-Voltage PRIMARY HIGH-VOLTAGE AC Electrode Current Sin Wave Buffer Generator Control Unit (Feedback Circuit) (ON / OFF Circuit) PRIMARY HIGH-VOLTAGE DC Pulse Current Generator Buffer Current Buffer PULSE Control Unit /HV1AC (Feedback Circuit) DNSTY (DNSTY Control Circuit) /HV1DC (ON / OFF Circuit) /DBAC /DBDC High-Voltage...
High-Voltage TRANSFER HIGH-VOLTAGE Electrode Pulse Current Generator Buffer Current Attenuator Buffer Constant Current Control Unit (Feedback Circuit) (ON / OFF Circuit) /HVT3 Constant Voltage /HVT2 Control Unit HVTFB (HVT4 Control Circuit) HVT4 /HVT1 TONER1 TONER2 Pulse Current Generator Buffer 24VRET +24V TONER SENSE Toner Sense...
CHAPTER IV MECHANICAL SYSTEM Safety Precautions To prevent the creation of secondary problems by mishandling, observe the following precautions during maintenance work. Always turn off the power before replacing parts or units. When having access to the power supply, be sure to unplug the power cord form the power outlet. Be careful not to lose screws, washers, or other parts removed for parts replacement.
PRINTER BODY Configuration Control panel unit Upper cover ASSY Toner cartridge lid Paper tray Rear cover ASSY Side cover L Side cover R Font cover ASSY Figure 4.1 Control Panel Unit Release the Stopper. Remove the Lead wire cover. Remove the 3 screws from the bottom of the Control panel unit, and remove the 3 screws from the Interlock actuator.
Toner Cartridge Lid Remove the supporter from the Toner cartridge lid. Push the right side of the Toner cartridge lid to release the boss. Hold the right side of the Toner cartridge lid and Move it towords the left side. Push the left side of the Toner cartridge lid to release the boss.
Font Cover ASSY Remove the font cover ASSY by loosening the screw on the top and releasing the hooks on the bottom. Screw Hook Font cover ASSY Hook Figure 4.5 Upper Cover ASSY, Rear Cover ASSY 1.6.1 Upper cover ASSY, Rear cover ASSY Loosen the top left screw and 2 screws at the top of the Rear cover ASSY.
Loosen the 2 screws on the bottom of the Rear cover ASSY. Screw Upper cover ASSY Rear cover ASSY Screw Figure 4.7 Disconnect the Paper eject sensor harness from the Paper eject sensor PCB ASSY. Paper ejetct sensor Rear cover ASSY Paper ejetct sensor harness Figure 4.8 Remove the Rear cover ASSY.
1.6.2 Changeover guide, Jam remove cover Open the jam remove cover by hooking your finger on 2 dents ( Remove the jam remove cover with its center part opened by bending the arm of the boss both on sides ( ) toward the front ( Remove the changeover guide from the boss by bending the right hook (viewed from the rear) of the Rear cover ASSY (...
Remove the Side cover R by releasing the 4 hooks. Note: Before releasing the 4 hooks, remove the paper tray. <Rear> Side cover R Hook at 4 places <Front> Figure 4.11 DC Fan Motor Remove the DC fan motor from the DC fan motor holder by loosening the 2 screws.
Main PCB Loosen the 2 screws and remove the SIMM replace lid. Screw SIMM replace lid Figure 4.13 Remove the 7 screws and the MIO box. MIO box Screws Figure 4.14 IV-9...
PR99135 Remove the PCB holder by loosening 10 screws from the PCB holder, 2 screws from the Centronics connector and 2 screws RS-232C connector. Centronics connector lock wire Screws Main PCB PCB holder PCB holder < View from the top > Figure 4.15 Remove the SW panel harness 22P and the Paper feed flat cable 21P.
Remove 8 screws and the Main PCB ASSY. 8 screws Main PCB ASSY Figure 4.17 1.10 Laser Unit Unplug the LSR flat cable connector (6P), and LSR harness connector (14P). Remove the beam from the chassis by loosening the screws. Remove the Laser unit from the chassis by loosening the screws.
1.11 Cartridge Stopper ASSY Remove LSR harness 5P, the Paper eject sensor harness and DC fan motor harness from the cable clump. Remove the Duct by releasing the 2 hooks. Remove 3 M holders by loosening the screws. M holder Duct M holder Figure 4.20...
Release the hook by bending the arm of the Cartridge stopper ASSY ( A ), slide the Cartridge stopper ASSY to the left ( B ) and the remove the Cartridge stopper ASSY ( C ). Cartridge stopper ASSY Laser unit mount plate Figure 4.22 1.12 Paper Feed Chassis Unit...
Remove the Paper hold front and the Paper hold rear by pushing the top of the Paper hold front and sliding it down. Paper hold front Screws Screws Paper hold rear Figure 4.24 Release the left cartridge hold roller and remove the cartridge guide L (by loosening the screw and releasing the hook) then pull out feed flat cable 20P.
1.13 Separation pad ASSY Release the hook and remove the Paper pick-up roller ASSY. Remove the Separation pad ASSY by pulling it out from the Paper feed guide upper. Paper feed guide upper Paper pick-up roller ASSY Hook Separation pad ASSY Paper pick-up roller collars Figure 4.27 Remove the spring from the Separation pad ASSY.
PR99176 1.15 P Feed /Size-SW PCB ASSY Release 2 solenoid harness connectors. Put the 3 chassis L tabs to their original position. Remove 2 screws securing the Size-SW PCB ASY and remove P Feed/Size-SW PCB ASSY. Tabs 2 solenoid harness connector P feed/ size -SW PCB ASSY Paper feed motor harness connector...
1.18 PE Sensor Actuator MP Pull out the actuator by shifting it to the right from the chassis hole. PE sensor actuator MP PE sensor actuator MP Figure 4.33 1.19 Tray Sensor Holder Disengage the DU (Duplex) detection actuator from the hook and slide it to the outside.
1.20 Roller Holder Remove the Gear 28. Loosen and pull out the 2 screws. Roller holder Screws Gear 28 Figure 4.35 1.21 Paper pick-up roller ASSY, Bearing Pull out the MP paper pick-up gear 35 and the Tray paper pick-up gear 35, from the Paper pick-up roller shafts.
Loosen the bearing screws and pull out the paper pick-up rollers. *When only the Paper feed rollers are to be replaced, they can be replaced without removing the Paper feed unit (with the body assembled). Paper pick-up roller shafts Paper pick-up roller ASSY Paper pick-up roller collars Bearing Bearing...
1.22 Paper Pick-up Solenoid Remove each solenoid by loosening their screw. Paper pick-up solenoid Screw Paper pick-up solenoid Screw Figure 4.39 1.23 Paper Feed Motor ASSY Pull out the Paper feed motor ASSY by loosening its 2 screws. Screw Paper feed motor ASSY Screw Figure 4.40 IV-20...
For each ASSY, loosen a screw and pull out the bearing and the 6 washers. See the picture below Paper feed roller ASSY 70s Washer Washer Paper feed Washer roller ASSY 60 Washer Washer Screws Bearing Bearings Screw Washer Figure 4.41 1.24 MP Tray Cover Remove the MP tray cover from the Paper feed chassis unit by bending its hook on...
Remove the MP extension tray from the MP tray cover by bending the former. MP extension tray MP tray cover Figure 4.43 1.25 MP Tray ASSY Remove the MP tray ASSY from the MP tray cover by bending its bosses. MP tray ASSY Boss MP tray cover...
Remove the MP tray ASSY from the MP release plate bending its bosses. The MP tray can be easily removed if it is slanted. Boss MP release plate MP tray ASSY Boss Figure 4.46 1.26 Paper Path Separation Plate, Paper Path Separation Film Remove them from the Paper feed guide lower by bending them.
1.28 Fixing unit (for both 115V and 230V, the only difference is the Halogen heater) (The fixing unit can be disassembled even after removing the Rear cover ASSY in section 1.6). Release the hook of the heater lead wire connector (2P) by pinching the connector and pull it out upward (to remove it from the low-voltage power supply ASSY).
Rremove the Thermistor lead wire connector (2P) of the Fixing PCB (see Figure 4.51). Detach the wire from the hooks of the Fixing unit chassis. Loosen 4 screws and remove the Fixing unit cover. Note: When removing the Fixing unit cover, the Thermistor cleaner ASSY and the spring come off from the Fixing unit cover.
Loosen a screw and remove the Fixing PCB ASSY. Connector (2P) Fixing PCB ASSY Screw Figure 4.53 Release the left hook and take off the Paper delivery actuator. Paper delivery actuator Thermistor Fixing unit cover Figure 4.54 (10) 1) Remove the retaining rings (on both sides). 2) Remove the HR gear, loosen the screw and remove the spring washer, remove the left and right HR bearings and the heat roller by sliding it.
3) Remove the Pressure roller spring and Pressure roller bearing on both sides, and the Pressure roller. Note: Do not use the electric driver to loosen/secure the screw as the plastic bush is easy to break. Pressure roller bearing Pressure roller Pressure roller spring Fixing unit chassis Figure 4.56...
Open the transfer base hook and take off the left bearing (white) from the hook ( A ). Lift the left side ( B ), slide it to the left ( C ) and take off the roller shaft from the right bearing (black) ( D ).
1.31 PS Switch Wire, Remote Switch Pull out the PS switch wire from the remote switch and the switch attachment. Lift slightly the wires when pulling them out. This is in order to release the chassis caught at 2 places. Remove the remote switch from the chassis.
Loosen the 2 screws and remove the connector. Hold the head of 2 resin spacers and lift this side of PCB ( A ). Slide the PCB to the opposite side ( B ). Resin spacers Connector Screws High-voltage power supply PCB ASSY The PCB can be detached without removing this...
Remove the PS switch wire. Loosen the 2 screws with the spring washer on the right side. Loosen the 4 screws with the spring washer on the Low-voltage power supply PCB. Disconnect the LV harness 8P. Screw Screw Screw PS switch wire Screw Screw LV harness 8P...
1.35 Paper Tray Release the roller holder fixing pawl and remove the roller holder by pulling it out upward. Remove the roller. Remove the Separation pad ASSY (pull it out by turning it). Paper tray (A4 size) Roller Roller holder Roller holder fixing pawl Separation pad ASSY and spring Figure 4.68...
PR98191 CHAPTER V MAINTENANCE AND SERVICING PERIODICAL REPLACEMENT PARTS Periodical replacement parts are the parts to be replaced periodically to maintain product quality at same level (in other words the parts which would affect the product greatly if they lost their function even if they are not damaged or there is no change in their appearance.) It is recommended to replace such parts on the occasion of a periodical service which is carried out before or after the specified number of sheets are printed, whichever more...
LIST OF STANDARD TOOLS The standard tool set required for servicing the printer is as listed below. These tools are commercially available on the market. Table 5.2 Description Remarks Tool box Lead cable Feeler gauge Compression spring scale (0 - 1kg) For checking cassette spring strength Phillips screwdriver M4, M5...
LIST OF LUBRICANTS AND CLEANERS Table 5.3 Material name Components Remarks Alcohol ethyl Cleaning of plastic, OH, (CH Purchase locally (pure or denatured) or CHOH rubber, and external isopropyl parts (pure or denatured) CO-C Cleaning for oil and Purchase locally (methyl ethyl ketone) toner stains Highly flammable;...
CHAPTER VI TROUBLESHOOTING INTRODUCTION Initial Check Operating environment Check if: The source voltage stays within ±10% from the rating voltage shown on the rating label. The printer is installed on a solid, level surface. The room temperature is maintained between 10 C and 32.5 C. The relative humidity is maintained between 20% and 80%.
Basic Procedure If a malfunction or incorrect print is appeared, make an initial check, then follow the basic procedure below: Check the status display. If any message is shown, see Section 4 for troubleshooting. If an incorrect image is found, see Section 3.1 to determine the defect type and Section 3.2 for image troubleshooting.
IMAGE DEFECTS Image Defect Examples I-1 Light I-2 Dark I-3 Completely blank I-4 All black I-5 Polka dots I-6 Dirt on back of paper I-7 Black vertical streaks I-8 Black and blurred vertical stripes I-9 Black and thin I-11 Dropout I-12 White vertical I-10 Black and blurred horizontal streaks...
Troubleshooting Image Defects Light Possible cause Step Check Result Remedy Toner shortage Does printed image improve when the Replace EP-ED HC EP-ED HC cartridge is replaced? cartridge. ECONOMY Is the ECONOMY mode active? Cancel the ECONOMY mode mode. Printing Does printed image improve when printed Adjust the proper setting density setting density setting is changed on the control...
Possible cause Step Check Result Remedy Development Do the pins 3, 4 and 5 of the connector Replace the laser unit or input signal P6 on the main PCB have the following value the harness. error respectively when a sheet of paper is fed from the MP tray? P6-3 pin (DBAC) --- Change in voltage from 6V approx.
Completely blank Possible cause Step Check Result Remedy EP-ED HC Does printed image improve when the EP-ED Replace the EP-ED HC cartridge cartridge. cartridge is replaced? Development Do the pins 3, 4 and 5 of the connector? Replace the main PCB input signal P6 on the main PCB have the following value assy or the harness.
Polka dots Possible cause Step Check Result Remedy Failure in static- Is there any dirt on the static-charge Clean the static-charge charge eliminator? eliminator. eliminator Static-charge Is there continuity between the static-charge Ensure the grounding of eliminator eliminator and the chassis? the static-charge grounding eliminator.
Black vertical streaks or Blurred vertical line Possible cause Step Check Result Remedy EP-ED HC During a printing, open the toner cartridge lid Replace the EP-ED HC cartridge in the printer and pull out the EP-ED HC cartridge. cartridge. Fixing unit Open the drum shutter of the EP-ED HC cartridge damaged...
I-11 Dropout Possible cause Step Check Result Remedy Paper failure Is recommended paper used? Use recommended paper. Paper soaked Is paper soaked? Store the paper in packing paper to keep it from soaking. EP-ED HC Does printed image improve when the EP-ED Replace the EP-ED HC cartridge HC cartridge is replaced?
I-13 Faulty registration Possible cause Step Check Result Remedy Top margin Does self test printing have no problem? Check again the top setting error margin setting in the printing data. Paper load in Is over-amount of paper than specified load Reduce the paper load the cassette on the cassette?
TROUBLESHOOTING OF MALFUNCTIONS No DC power supplied Possible cause Step Check Result Remedy PCBs Does any PCB have the short circuit between Replace the PCB having +24V and 0V, +5V and 0V or +24V and +5V? the short circuit. Low-voltage Is the voltage of P101-8 in the low-voltage Replace the low-voltage power supply...
Malfunction of control panel switches Possible cause Step Check Result Remedy Mis-operation Are the switches operated according to the Operate the switches operation manual? correctly following the operation manual. Switch When a switch is pressed, does the voltage of Replace the Main PCB the following signals change from 5V to 0V? assy.
"14 NO CARTRIDGE" is displayed Possible cause Step Check Result Remedy EP-ED HC Is an EP-ED HC cartridge installed correctly? Install the EP-ED HC cartridge cartridge correctly. Transfer unit Is the electrode of the transfer unit dirty? Clean the electrode of the electrode transfer unit.
M -10 "54 MOTOR MALF" is displayed (The main motor rotation disabled ) Possible cause Step Check Result Remedy Low-voltage Is the voltage of P7-1 in the main PCB Replace the main PCB power supply connector +24V? assy low-voltage power supply PCB assy, or the LV harness LV harness.
M-12 "55 HIGH VOL MALF" is displayed (Faulty output from the H.V.P.S. ASSY) Possible cause Step Check Result Remedy Main PCB When a test print is carried out, is the voltage Replace the main PCB of the each pin in the main PCB connector P6 assy.
PR99033 About 55 HIGH VOL MALF HV MALF occurs under the following conditions. When the resistance of the transfer roller is too low. When the Developing AC bias is not applied. The reason for low resistance of the Transfer roller is the following cases. - Paper dust or toner adhered to the roller.
M-13 "50 FUSER MALF" is displayed Possible cause Step Check Result Remedy Thermal fuse Is the thermal fuse located in the fixing unit Replace the fixing unit. conductive ? Thermistor Remove the fixing unit from the printer and Replace the fixing unit. measure the resistance between two pins of the 2 pin connector on the fixing PCB.
M-16 "41 PRINT CHECK" is displayed Possible cause Step Check Result Remedy Main PCB Does this problem frequently occur? Since this is a temporary problem, remove the paper used when the error occurred and continue to print. Replace the main PCB assy.
TROUBLESHOOTING PAPER TRANSPORT PROBLEMS Paper Jams The paper path is divided into following three blocks: The paper pick-up block, (The LCD display "JAM TRAYS") The separation and feed block, (The LCD display "JAM INSIDE") The fixing and paper delivery block, (The LCD display "JAM REAR") Therefore, remedies for paper jam problems are described.
J-1a Paper pick-up block (Pick miss) Possible cause Step Check Result Remedy Adjustment Is the position of the adjustment lever of the Instruct the user to follow lever cassette corresponding to the paper sheet the correct method. (spring pressure size? switching lever) Print paper Is a recommended type of paper being used?
Separation and feed block (Paper jam) Possible cause Step Check Result Remedy Print Paper Is a recommended type of paper being used? Instruct the user to use recommended type of paper. Static-charge Is the static-charge eliminator dirty? Clean the static-charge eliminator eliminator.
Incomplete Paper Feed Double feeding Possible cause Step Check Result Remedy Print paper Is a recommended type of paper being used? Instruct the user to use recommended type of paper. Adjustment Is the position of the adjustment lever of the Instruct the user to switch lever cassette corresponding to the paper sheet...
OPERATION Line Inspection Mode Procedure Install flash memory cards 1 & 2 and an optional MIO board. While pressing the switch, turn the power on. The LCD will display: LINE TEST Press the switch to check if the LCD comes on. All the LCD elements will come on simultaneously.
Press the CONTINUE switch to check the 2nd stage cassette. TRAY 2 = Appears when the cassette is set to A4 size. TRAY 2 = LETTER Appears when the cassette is set to letter size. TRAY 2 = Appears when no cassette is set. CASSETTE ERROR!! Appears in case of error.
NO FLASH CARD1 No flash memory card is installed. NO FLASH CARD2 No flash memory card is installed. CARD1 WP SWITCH The Write Protect switch of the flash memory card 1 is on. CARD2 WP SWITCH The Write Protect switch of the flash memory card 2 is on.
DRAM Test To start up the test program: While pressing the Switch (RESET switch), turn the power on. "DRAM CHECK" will be displayed. Then press CONTINUE switch to start DRAM checking. The LCD will display "START DRAM TEST" and the DATA lamp or ALARM lamp will be flashing.
STATUS MESSAGE LIST Table 6.2 Operator Call Messages Operator Call Message Meaning Action CHECK XX TRAY The paper cassette (XX is Load a stack of paper into the MP/T1/T2) is out of paper. cassette. See M-7. 12 COVER OPEN The upper cover of the printer Close the cover.
Table 6.3 Error Messages Error Message Meaning Action 31 PRINT OVERRUN Print overrun Press the CONTINUE switch to start printing the next page. Data which overran the print area on the page cannot be printed. Check your page protection setting with the MODE switch.
Error Message Meaning Action 42 CARD 1 FULL Card overflow Delete unnecessary macros or CARD 2 FULL fonts, or use a new card. 43 CARD 1 W ERROR Card write error Set the write protect switch of CARD 2 W ERROR the card to OFF if it has been set to ON.
Error Message Meaning Action 73 MAINTENANCE 2 Notice for replacing the Replace the following parts of periodical replacement parts. and reset the parts life counter. (See Page V-1) Laser unit The output paper tray or the Remove the output paper. STACK FULL output paper tray of MX-2000 is full of output paper.
Table 6.4 Service Call Messages Service Call Message Meaning Action 50 FUSER MALF Malfunction of fuser Turn off the printer. Wait 15 minutes, then turn it on again. See M-14. 51 LASER BD MALF Malfunction of laser beam Turn off the printer. Wait a few detector seconds, then turn it on again.
Service Call Message Meaning Action 99 SERVICE 2 Instruction access error Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB. 99 SERVICE 3 Memory address not aligned Turn off the printer. Wait a few seconds, then turn it on again.
CHAPTER VII HIDDEN FUNCTIONS HIDDEN FUNCTION LIST HL-2060 has 3 entrance operation into the hidden function menu; Power on and specified key(s) Off-line and MODE + FF + CONT Off-line and CONT + SEL To regulate accesses from end users, the user’s manual mentions only “Off-line and CONT + SEL”.
Hex dump mode CONTINUE HEX DUMP MODE * Printer reset is need to exit this mode. (No display reads) Reads the date of program / FONT font ROM. Press CONT to switch program and font. (No display reads) Choose LCD local prompt FORM FEED message.
Write the data on the main MAIN --->OPTN ROM W ROM onto flash memory modules on the option ROM socket. exit MENU (No display reads) If there is any writing error MODE during writing data onto the patch flash modules, the printer becomes unable to initialize itself at power on.
PR99033 Off-line and Hold Down MODE + FF + CONT Keys Display Selection Description LINE TEST Carry out tests of the engine ENGINE TEST TONER EMPTY TEST functionality. Checks the Transfer roller bias TRBIAS V0 TEST voltage. LASER TEST If the resolution is 1200 dpi on the MOTOR TEST panel, the motor rotates at the half speed of the standard speed.
10mm grid pattern sheet TEST PRN=GRID2 for offset print check ENGINE ADJUST MP-CAS ADJUST Adjust the top margin for feeding MP OFFSET from MP tray in the range from - 2.0 mm to +2.0 mm, by 0.5 mm Adjust the top margin for feeding CAS OFFSET from cassette tray in the range from -2.0 mm to +2.0 mm, by 0.5...
Adjust the toner fixing temperature REGUL 10PPM for ragular paper at 10 PPM printing. Standard tenperature - 5 C from standard temperature + 5 C from standard temperature + 10 C from standard temperature Adjust the toner fixing temperature THICK 10PPM for thick paper at 21 PPM printing.
The poser save mode works. MODE=ON/OFF This is chosen by default. The printer does not enter to the MODE=ALWAYS ON power save mode. exit (No display reads) Clear NV-RAM. NV-RAM CLEAR *Page counter cannot be cleared.* When receiving DC3 in Epson READOUT SELECT READOUT=ON emulation, ignore the data received...
CONDENCE SELECT Use 16.66 pitch for EPSON, IBM CONDENCE = 16.66p condensed chara. Use 17.14 pitch for EPSON, IBM CONDENCE = 17.14p condensed characters. OEM FONT SELECT Disable to select European OEM FONT = DISABLE Parliament fonts. Enable to select European OEM FONT = ENABLE Parliament fonts.
Settings for the scalable italic fonts FX/XL SCALE ITA in EPSON, IBM emulation. Make uplight font oblique to have ITA = OBLIQUE italic as scalable font is selected. Use the italic font to have italic as ITA = ITALIC SEL scalable font is selected.
Check DSR(DR) signal when a DSR(DR) =ON printer send back data to a host throgh RS-232C. INPUT PRIME Handle Xon/Xoff as a data to be RCV XON/XOFF=OFF printed. This is chosen by default. Handle Xon/Xoff as a protocol. RCV XON/XOFF=ON This allows you to set the timing to XOFF TIMING SEL send out XOFF depedning on the...
Norwegian SPRAK=NORSK Portugese LING. =PORTUGUESE Danish LANG. =DANISH This is chosen by default. REPRINT ON/OFF REPRINT =JOB REPRINT =ON REPRINT =OFF Display the following information ROM DATE DISPLAY about program/font ROMs by pressing the CONT key Date of the Program Time of the program Date of the font data Time of the font data...
To transfer the data of dot matrix BYPASS MODE SEL BYPASS MODE=OFF printers coming through MIO to RS-232C. Print the data on the printer. This is chosen by default. Pass the data through RS-232C to BYPASS MODE=ON print it out on a dot matrix printer. Switch the emulation to the PS APPLETALK AT/PS APPLE TALK=PS...
Reverse ON/OFF when a printer is SW = ON/OFF in the sleep mode. Not rotate the fan when a printer is SW = OFF in the sleep mode. This is chosen by default. SPEED (S) The fan rotates at low speed when SPEED = SLOW a printer is in the sleep mode.
Always keep a laser unit rotating. SPEED=HIGH The first print time will be reduced by 2 sec. *As the laser unit life is 3000h, it would necessary to replace the laser unit periodically. Adjust the interval of the paper PRINT SPEED feeding A4 size paper is fed with an SPEED=20.0ppm...
To support Windows 95 Plug & BOISE ID MODE Play. BOISE ID=WIN95 This is chosen by default. BOISE ID=IEEE ECP RLE MODE Not use the ranlength ECP RLE = OFF decompression. This is chosen by default. Use the ranlength decompression ECP RLE = ON on software side.
Test for memory. MEMORY DEBUG MEMORY DISPLAY MEMORY TEST exit MENU VII-16...
Off-line and Hold Down CONT + SEL Keys Display Selection Discription Adjust the voltage to sense toner REFILL CART. MODE EP/ED CART empty. Standard toner empty sensing. This is chosen by default. Suitable or MICR cartridge. MICR CART (Voltage for the tonere empty sense is -0.3V) Set the voltage for the tonere REFILL CART1...
HP LaserJet 4 compatible TRAY COMMAND MODE TRAY COM. =NORM This is chosen by default. HP LaserJet 3 compatible TRAY COM. =SPEC. Print a blank page PRINT BLANK PAGE Set number of re-trying of paper PICKUP RETRY SET PICKUP RETRY =2 feeding.
Carry out the page protect if it is PROTECT OFF MODE PRO.OFF=AUTO turned OFF. This is chosen by default. PRO.OFF=NORMAL Reset a printer with ESC E. HP ESC E COMMAND HP ESC E=RESET This is chosen by default. Carry out form feed with ESC E. HP ESC E =F/F This is chosen by default.
A5 paper size in portrate can be A5 FEED SETTING A5 FEED=PORT printed. To protect the fixing unit from overheat, printing speed will slow down. A5 FEED=LAND This is chosen by default. A5 paper size in landscape can be printed. Printing speed will be maintained as A5 paper width in landscape is the same as A4 paper widht in portrate.
Display the number of the life PART 200K=0K counter for the periodical replacement parts with 200,000 pages life. See page V-1. Reset the life counter for the PART 200K=RESET periodical replacement parts with 200,000 pages life. exit MENU VII-21...
Appendix A 12. SERIAL NO. DESCRIPTIONS The descriptions as below shows how to read labels on each place. <ID for production month of Printer> January September February June October March July November April August December <ID for production month of other parts than the printer> January September February...
LASER PRINTER PARTS REFERENCE LIST HL-2060...
NOTE FOR USING THIS PARTS REFERENCE LIST 1. In the case of ordering parts, it needs mentioning the following items: (1) Code (2) Q'ty (3) Description (4) Symbol ( PCB No., Revision , and Parts location mounted on the PCB.) Note : No orders without Parts Code or Tool No.
CONTENTS POWER CORDS & HARNESSES ............1 MAIN PCB..................... 1 HIGH-VOLTAGE POWER SUPPLY ............. 3 LOW-VOLTAGE POWER SUPPLY ............3 COVERS ....................5 PCB ATTACHMENTS ................7 TRANSFER ................... 7 CHASSIS ....................9 PAPER FEEDER................. 11 10. PAPER TRAY A4, LRT/LGL..............13 11.
1 . POWER CORDS & HARNESSES MODEL HL-2060 54T-U04-050/070 2 . MAIN PCB PR99135 T/I NO. PR99135 MODEL HL-2060 54T-U04-103...
1. POWER CORDS & HARNESSES REF.NO. CODE Q'TY DESCRIPTION REMARK UH1052001 1 AC CORD, VDE UH1053001 1 AC CORD, SEV UH1055001 1 AC CORD, SAA UH1054001 1 AC CORD, BS UH1051001 1 AC CORD, UL/CSA U34320001 1 AC CORD #4, BS UK4094001 1 AC CORD, DEMKO U34322001...
5 . COVERS 17-19 T/I NO. PR99031 MODEL HL-2060 54T-U04-400...
5. COVERS PR99031 REF.NO. CODE Q'TY DESCRIPTION SYMBOL REMARK UH1526001 UPPER COVER ASSY UH1533001 M COVER A UH1534001 M COVER B UH1535001 M COVER C UH1538001 TONER CARTRIDGE LID UH1540001 PAPER STOPPER UH1541001 PAPER STOPPER GUIDE UH1893001 SW PANEL ASSY (SP) B512005-1 UK4068001 SW PANEL HARNESS ASSY...
8. CHASSIS REF.NO. CODE Q'TY DESCRIPTION REMARK UH1558001 LV FAN MOTOR 087323016 TAPTITE, CUP S M3X30 T31242001 PCB SPACER F UH2229001 CARTRIDGE STOPPER ASSY UH2233001 DC GEAR HOLDER ASSY UH1833001 DC MOTOR ASSY 3 (SP) 087320616 TAPTITE, CUP S M3X6 UH2250001 PAPER DELIVERY HOLDER SPRING UH2252000...
9 . PAPER FEEDER 1-49 MODEL HL-2060 54T-U04-630 TI NO. PR99087 / PR2000012 -11-...
9. PAPER FEEDER REF.NO. CODE Q'TY DESCRIPTION SYMBOL REMARK 1-49 UH1835001 1 PAPER FEED UNIT (SP) UH1565001 1 PAPER FEED MOTOR ASSY 087320616 2 TAPTITE, CUP S M3X6 085310815 2 TAPTITE, BIND B M3X8 UH2821001 1 PAPER PICK-UP ROLLER ASSY 3 UH1487001 2 PAPER PICK-UP COLLAR LOW UH1477001...
10 PAPER TRAY A4, LTR/LGL, UNIVERSAL PR99008 A4, LTR/LGL UNIVERSAL T/I NO. PR99008 MODEL HL-2060 54T-U02-650/651 11 . LASER UNIT PR99107 MODEL HL-2060 54T-U02-700 T/I NO. PR99107 -13-...
10. PAPER TRAY A4, LTR/LGL, UNIVERSAL PR99008 REF.NO. CODE Q'TY DESCRIPTION REMARK UH1500001 SEPARATION PAD ASSY W UH3391001 SEPARATION PAD ASSY T/B (UNI) UH1582001 SEPARATION PAD SPRING 100 UH2841001 SEPARATION PAD SPRING 200 (UNI) UH1583001 SEPARATION PAD SPRING 50 UH2360000 ROLLER UH2459000 ROLLER HOLDER...