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PageWorks/Pro 1100 PageWorks/Pro 1100L
SERVICE MANUAL
Trademark Acknowledgments
PageWorksTM is trademark of Minolta in the U.S. and Canada. PageProTM is trademark of Minolta in Europe, Japan and Asia. Fine-ART and Fine Micro Toning are trademarks of Minolta Co., Ltd. QMS and the QMS logo are registered trademarks of QMS, Inc. PCL is a registered trademark of Hewlett-Packard Company. Centronics is a registered trademark of Centronics Inc. MS-DOS, Microsoft, Windows, and Windows NT are registered trademarks of Microsoft Corporation. IBM is a registered trademark of International Business Machines Corporation. All other brand or product names are trademarks or registered trademarks of their respective companies or organizations.
Safety Precautions for Inspection and Service
When performing inspection and service procedures, observe the following precautions to prevent accidents and ensure utmost safety. V Depending on the model, some of the precautions given in the following do not apply. Different markings are used to denote specific meanings as detailed below.
WARNING CAUTION
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.
The following graphic symbols are used to give instructions that need to be observed. Used to call the service engineer attention to what is graphically represented inside the marking (including a warning). Used to prohibit the service engineer from doing what is graphically represented inside the marking. Used to instruct the service engineer to do what is graphically represented inside the marking.
WARNING
1. Always observe precautions. · Parts requiring special attention in this product will include a label containing the mark shown on the left plus precautionary notes. Be sure to observe the precautions. · Be sure to observe the "Safety Information" given in Operator's Manual. 2. Before starting the procedures, be sure to unplug the power cord. · This product contains a high-voltage unit and a circuit with a large current capacity that may cause an electric shock or burn. · The product also contains parts that can jerk suddenly and cause injure. · If this product uses a laser, laser beam leakage may cause eye damage or blindness. 3. Use the specified parts. · For replacement parts, always use the genuine parts specified in the manufacturer's Parts Manual. Installing a wrong or unauthorized part could cause dielectric breakdown, overload, or undermine safety devices resulting in possible electric shock or fire. · Replace a blown electrical fuse or thermal fuse with its corresponding genuine part specified in the manufacturer's Parts Manual. Installing a fuse of a different make or rating could lead to a possible fire. If a thermal fuse blows frequently, the temperature control system is probably of a problem and action must be taken to eliminate the cause of the problem.
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4. Handle the power cord with care and never use a multiple socket. · Do not brake, crush or otherwise damage the power cord. Placing a heavy object on the power cord, or pulling or bending it may damage it, resulting in a possible fire or electric shock. · Do not use a multiple outlet to which any other appliances or machines is connected. · Be sure the power outlet meets or exceeds the specified capacity. 5. Be careful about the high-voltage parts. · A part marked with the symbol shown on the left carries a high voltage. Touching it could result in an electric shock or burn. Be sure to unplug the power cord before servicing this part or the parts near it. 6. Do not keep your hands wet when performing the procedures. · Do not unplug or plug in the power cord, or perform any kind of service or inspection with wet hands. Doing so could result in an electric shock.
7. Do not touch a high-temperature part. · A part marked with the symbol shown on the left and other parts such as the exposure lamp and fusing roller can be very hot while the machine is energized. Touching them may result in a burn. · Wait until these parts have cooled down before replacing them or any surrounding parts. 8. Make a ground connection at all times (This item may not be effected in USA). · Be sure to connect a ground wire to the ground terminal even when performing an inspection or repair. Without proper grounding, electrical leakage could result in an electric shock or fire. · Never connect the ground wire to a gas pipe, water pipe, telephone ground wire, or a lightning conductor. 9. Do not remodel the product. · Modifying this product in a manner not authorized by the manufacturer may result in a fire or electric shock. If this product uses a laser, laser beam leakage may cause eye damage or blindness. 10. Restore all parts and harnesses to their original positions. · To promote safety and prevent product damage, make sure the harnesses are returned to their original positions and properly secured in their clamps and saddles in order to avoid hot parts, high-voltage parts, and sharp edges, or being crushed. · To promote safety, make sure that all tubing and other insulating materials are returned to their original positions. Make sure that floating components mounted on the circuit boards are at their correct distance and position off the boards.
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CAUTION
1. Precautions for Service Jobs · A toothed washer and spring washer, if used originally, must be reinstalled. Omitting them may result in contact failure which could cause an electric shock or fire. · When reassembling parts, make sure that the correct screws (size, type) are used in the correct places. Using the wrong screw could lead to stripped threads, poorly secured parts, poor insulating or grounding, and result in a malfunction, electric shock or injury. · Take great care to avoid personal injury from possible burrs and sharp edges on the parts, frames and chassis of the product. · When moving the product or removing an option, use care not to injure your back or allow your hands to be caught in mechanisms. 2. Precautions for Servicing with Covers and Parts Removed · Wherever feasible, keep all parts and covers mounted when energizing the product. · If energizing the product with a cover removed is absolutely unavoidable, do not touch any exposed live parts and use care not to allow your clothing to be caught in the moving parts. Never leave a product in this condition unattended. · Never place disassembled parts or a container of liquid on the product parts falling into, or the liquid spilling inside, the mechanism could result in an electric shock or fire. · Never use a flammable spray near the product. This could result in a fire. · Make sure the power cord is unplugged before removing or installing circuit boards or plugging in or unplugging connectors. · Always use the interlock switch actuating jig to actuate an interlock switch when a cover is opened or removed. The use of folded paper or some other object may damage the interlock switch mechanism, possibly resulting in an electric shock, injury or blindness. 3. Precautions for Working Environment · The product must be placed on a flat, level surface that is stable and secure. · Never place this product or its parts on an unsteady or tilting workbench when servicing. · Provide good ventilation at regular intervals if a service job must be done in a confined space for a long period time. · Avoid dusty locations and places exposed to oil mist or steam. · Avoid working positions that may block the ventilation port of the product. 4. Precautions for Handling Batteries · Replace a rundown battery with the same type as specified in the manufacturer's parts manual. · Before installing a new battery, make sure of the correct polarity of the installation or the battery could burst. · Dispose of used batteries according to the local regulations. Never dispose of them at the user's premises or attempt to try to discharge one.
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5. Precautions for Laser Beam (Products Employing Laser Only) · Removing the cover marked with the following caution label could lead to possible exposure to the laser beam, resulting in eye damage or blindness. Be sure to unplug the power cord before removing this cover. · If removing this cover while the power is ON is unavoidable, be sure to wear protective laser goggles that meet specifications. · Make sure that no one enters the room when the machine is in this condition. · When handling the laser unit, observe the "Precautions for Handling Laser Equipment."
.
DANGER
Invisible laser radiation when open.
AVOID DIRECT TO BEAM
EXPOSURE
0947-7127-01 1144D270AA
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Other Precautions
· To reassemble the product, reverse the order of disassembly unless otherwise specified. · While the product is energized, do not unplug or plug connectors into the circuit boards or harnesses. · The magnet roller generates a strong magnetic field. Do not bring it near a watch, floppy disk, magnetic card, or CRT tube. · An air gun and vacuum cleaner generates a strong electrostatic charge that can destroy the ATDC sensor and other sensors. Before cleaning a component with one of these devices, be sure to remove all the sensors. Otherwise, use a blower brush and cloth when cleaning parts. · When handling circuit boards with MOS ICs, observe the "INSTRUCTIONS FOR HANDLING THE PWBs WITH MOS ICs" (applicable only to the products using MOS ICs). · The PC Drum is a very delicate component. Observe the precautions given in "HANDLING OF THE PC DRUM" because mishandling may result in serious image problems. · Note that replacement of a circuit board may call for readjustments or resetting of particular items, or software installation. · After completing a service job, perform a safety check. Make sure that all parts, wiring and screws are returned to their original positions. · Check the area surrounding the service site for any signs of damage, wear or need of repair. · Do not pull out the toner hopper while the toner bottle is turning. This could result in a damaged hopper motor or locking mechanism. · If the product is to be run with the front door open, make sure that the toner hopper is in the locked position.
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SAFETY INFORMATION
This printer is a page printer which operates by means of a laser. There is no possibility of danger from the laser, provided the printer is operated according to the instructions in this manual. Since radiation emitted by the laser is completely confined within protective housing, the laser beam cannot escape from the machine during any phase of user operation.
Laser Safety
This printer is certified as a Class 1 Laser product under the U.S. Department of Health and Human Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968. This means that the printer does not produce hazardous laser radiation.
CDRH Regulations
The Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration implemented regulations for laser products on August 2, 1976. Compliance is mandatory for products marketed in the United States. The label shown below indicates compliance with the CDRH regulations and must be attached to laser products marketed in the United States.
Internal Laser Radiation
Maximum Radiation Power: 0.6 (mW) at laser aperture of the print head unit Wave Length: 770-810 (nm) This product employs Class IIIb Laser Diode. Laser Diode and Scanning Polygon Mirror are incorporated in the print head unit. The print head unit is NOT A FIELD SERVICE ITEM. Therefore, the print head unit should not be opened under any circumstances. WARNING: Use of controls, adjustments or performance of procedures other than those specified in this manual may result in hazardous radiation exposure. This is a semiconductor laser. The maximum power of the laser diode is 5 mW and the wavelength is 770-810 nm.
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For Denmark Users;
ADVARSEL Usynlig laserstråling ved åbning, når sikkerhedsafbrydere er ude af funktion. Undgå udsættelse for stråling. Klasse 1 laser produkt der opfylder IEC825 sikkerheds kravene.
For Finland, Sweden Users;
VARNING! Osynlig laserstråining när denna del är öppnad och spärren är urkopplad. Betrakta ej stråien. VARO! Avattaessa ja suojalukitus ohitettaessa lasersäteilylle. Äjä katso sätee
olet
alttiina
näkymättömälle
VARNNING Om apparaten används på annat sätt än i denna bruksanvisning specificerats, kan användaren utsättas för osynlig laserstrålning som överskrider gränsen för laser klass 1. VAROITUS Laitteen käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saattaa altistaa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteiylle.
For Norway Users;
ADVARSEL Dersom apparatet brukes på annen måte enn spesifisert i denne bruksanvisning, kan brukeren utsettes for unsynlig laserstråling som overskrider grensen for laser klasse 1. Dette er en halvleder laser. Maksimal effeckt til laserdiode er 5mW og bølgelengde er 770-810 nm.
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WARNING LABEL
laser
4121s001
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Contents
Chapter 1: INSTALLATION
1-1.Installation Environment ............................................................. 1 1-2.Usage Environment .................................................................... 1 1-3.Installing The Power Supply ....................................................... 1 1-4.Installation Space ....................................................................... 2
1-4-1.Standard ............................................................................................ 2 1-4-2.With Options ...................................................................................... 2
Chapter 2: GENERAL INFORMATION
2-1.Specifications .............................................................................. 3
2-1-1.Printer ................................................................................................ 3 2-1-2.Second Cassette Unit ........................................................................ 5 2-1-3.Controller (fro 1100) .......................................................................... 6 2-1-4.Controller (for 1100L) ........................................................................ 7
2-2.Parts Identification ...................................................................... 8 2-3.Component Layout ................................................................... 10 2-4.Drive Section ............................................................................ 11
2-4-1.Overview .......................................................................................... 11
2-5.Electrical Components Layout .................................................. 12
2-5-1.Printer .............................................................................................. 12 2-5-2.Controller ......................................................................................... 13 2-5-3.Second Paper Cassette Unit (option) .............................................. 13
2-6.Electrical Parts Function ........................................................... 14
2-6-1.Printer .............................................................................................. 14 2-6-2.Second Paper Cassette Unit (option) .............................................. 15
2-7.Explanation of Control Panel for 1100 ...................................... 16
2-7-1.Indicator Lights ................................................................................ 16 2-7-2.Indicator Status ................................................................................ 17 2-7-3.Control Panel Button Function ......................................................... 19 2-7-4.To Reset the Counter of the Toner Cartridge (only 1100) ............... 20 2-7-5.To Reset the Counter of the Drum Cartridge (only 1100) ................ 20 2-7-6.Test Print Function (only 1100) ....................................................... 21
2-8.Explanation of Control Panel for 1100L .................................... 22
2-8-1.Indicator Lights ................................................................................ 22 2-8-2.Indicator Status ................................................................................ 23
2-9.Electrical Service Parts on P.W.Boards .................................... 24
2-9-1.PWB-P (Controller Board for 1100) ................................................. 24 2-9-2.PWB-P (Controller Board for 1100L) ............................................... 26 2-9-3.PU1 (Power Unit) ............................................................................. 27 2-9-4.HV1 (High Voltage Unit) .................................................................. 27
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2-9-5.NIC (Network Interface Card option for 1100) ..................................28
2-10.Timing Chart ........................................................................... 29
2-10-1.Print Starting ..................................................................................29 2-10-2.Print Ending ....................................................................................29
Chapter 3: MECHANICAL/ELECTRICAL
3-1.Paper Path ................................................................................ 30 3-2.Paper Take-up Section ............................................................. 31
3-2-1.Multi-purpose Tray ...........................................................................31 3-2-2.Second Paper Cassette Unit (option) ...............................................32
3-3.Drum Charge ............................................................................ 34
3-3-1.Overview ..........................................................................................34
3-4.Laser Exposure ......................................................................... 35 3-5.Development ............................................................................. 37
3-5-1.An Overview .....................................................................................37 3-5-2.Explanation of each part ..................................................................38
3-6.Image Transfer .......................................................................... 39
3-6-1.An Overview .....................................................................................39
3-7.Fusing ....................................................................................... 40
3-7-1.An Overview .....................................................................................40 3-7-2.Fusing Temperature Control Circuit .................................................40
3-8.Paper Exit ................................................................................. 42
3-8-1.Face-up/Face-down Selection Mechanism ......................................42
Chapter 4: MAINTENANCE/DISASSEMBLY
4-1.Precautions for Maintenance/Disassembly ............................... 43
4-1-1.Precautions for Disassembly ............................................................43 4-1-2.Precautions for Handling the Laser Equipment ................................43 4-1-3.Parts not to be touched ....................................................................43 4-1-4.Instructions for Handling the PWBs with MOS ICs ...........................43 4-1-5.Precautions for Handling the Drum Cartridge ..................................44
4-2.Maintenance Schedule List ....................................................... 45 4-3.Required Service Tools ............................................................. 46 4-4.Screws ...................................................................................... 46 4-5.Disassembly Procedures .......................................................... 47
4-5-1.Disassembly procedure chart ...........................................................47 4-5-2.Before disassembly procedure .........................................................49 4-5-3.Replacing the Paper Take-up Roller ................................................50 4-5-4.Replacing the Image Transfer Roller ................................................51 4-5-5.Removal of the Paper Empty Sensor (PE1) .....................................52 4-5-6.Removal of the Right Cover .............................................................52 4-5-7.Removal of the Control Panel ..........................................................53 4-5-8.Removal of Controller Board (PWB-P) .............................................53 4-5-9.Removal of the Left Cover and Front Cover .....................................54
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4-5-10.Removal of the Paper Take-up Solenoid (SL1) ............................. 55 4-5-11.Removal of the Top Cover ............................................................. 56 4-5-12.Removal of the Rear Cover ........................................................... 56 4-5-13.Removal of the Cooling Fan Motor (M2) ....................................... 57 4-5-14.Removal of the Main Motor Assy. .................................................. 57 4-5-15.Removal of the Fusing Unit ........................................................... 58 4-5-16.Disassembly of the Fusing Unit ..................................................... 59 4-5-17.Removal of the Paper Exit Sensor (PS3) ...................................... 62 4-5-18.Removal of the Inter Lock Switch (S2) .......................................... 62 4-5-19.Removal of the Print Head Unit (PH) ............................................. 63 4-5-20.Removal of the Power Unit (PU1) ................................................. 64 4-5-21.Paper Take-up Sensor (PS1) ........................................................ 64 4-5-22.Removal of High Voltage Unit (HV1) ............................................. 65 4-5-23.Replace the Second Paper Take-up Roller ................................... 66 4-5-24.Removal of the Second Paper Take-up Unit. ................................ 67 4-5-25.Removal of the Connecting Board (PWB-A) ................................. 68 4-5-26.Removal of the Cassette Type Detecting Switch (SW21) ............. 68 4-5-27.Removal of the Second Paper Take-up Solenoid (SL21) .............. 69
Chapter 5: ADJUSTMENT
5-1.Adjustment of Image Registration ............................................. 70 5-2.Adjustment of Interlock Switch Position .................................... 71
Chapter 6: TROUBLESHOOTING
6-1.Paper Misfeed Detection .......................................................... 72
6-1-1.An Overview .................................................................................... 72 6-1-2.Paper misfeed Detecting Conditions ............................................... 72 6-1-3.How to reset a paper misfeed .......................................................... 72
6-2.Malfunction Detection ............................................................... 73
6-2-1.Laser malfunction ............................................................................ 73 6-2-2.Polygon Motor Malfunction .............................................................. 73 6-2-3.Main Motor Malfunction ................................................................... 73 6-2-4.Fusing Malfunction .......................................................................... 73
6-3.Troubleshooting for Paper Misfeed ........................................... 74
6-3-1.Paper misfeed occurred when the Power switch (S1) is turned ON 74 6-3-2.Paper misfeed occurred at the paper take-up section ..................... 74 6-3-3.Paper misfeed occurred at the paper exit section ........................... 75
6-4.Troubleshooting For Malfunction (1100) ................................... 76
6-4-1.No power ......................................................................................... 76 6-4-2.Engine Communication Error .......................................................... 76 6-4-3.Controller Error ................................................................................ 76 6-4-4.Engine Error (laser) ......................................................................... 76 6-4-5.Engine Error (polygon scanner & main motor) ................................ 77 6-4-6.Engine Error (fusing unit) ................................................................. 77
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6-4-7.Network Communication Error .........................................................77
6-5.Troubleshooting For Malfunction (1100L) ................................. 78
6-5-1.No power ..........................................................................................78 6-5-2.Engine Communication Error ...........................................................78 6-5-3.Controller Error .................................................................................78 6-5-4.Engine Error .....................................................................................79
6-6.Image Quality Troubleshooting ................................................. 80
Appendix A: INDEX Appendix B: WIRING DIAGRAM
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Chapter 1
Chapter 1: INSTALLATION
1-1. Installation Environment
When installing the printer, please avoid the types of locations listed below, both for safety considerations and to avoid breakdowns. · Areas with high temperatures or humidity, or with low temperatures and humidity · Areas where the temperature and/or humidity fluctuate sharply · Places where the printer will be in direct sunlight · Areas near a cooler, heater, ventilation opening or in the direct path of wind · Areas near oil stoves or other heat-generating equipment · Locations with poor ventilation · Areas where water is likely to fall on the equipment or electrical leakage is likely · Areas where corrosive gases (ammonia gases, etc.) are present · Areas where there is a high volume of dust, dirt and vibration · Areas where the floor is not sufficiently strong or is not level · Areas containing volatile and flammable materials and curtains
1-2. Usage Environment
In order to make sure the printer functions in good condition, please make sure the ambient environment satisfies the following requirements: Temperature: 10-35°C Humidity: 15-85%RH Temperature fluctuation: ±10°C per hour or less Humidity fluctuation: ±20% RH per hour or less
1-3. Installing The Power Supply
1. Do not plug the Power Cord into a power outlet via an extension cord supplying electricity to more than one unit. 2. Do not connect the printer to a power outlet used for other equipment or appliances. More than one appliance connected to a single outlet could cause a drop or surge in the electrical supply, resulting in operational problems for the printer. Voltage fluctuation: Specified voltage: ±10% (+6%, -10%: AC127V areas only) Frequency fluctuation: Specified frequency: ±3Hz 3. The following items should be checked periodically: · Make sure the power supply plugs do not feel warm. · Power supply cords should be free of cracks and scratches. · Power supply plugs should be firmly plugged into outlets.
1
1-4. Installation Space
1-4-1. Standard
W
H
4121s002
D W D 436mm or 17-1/8 in. H 360mm or 14-1/8 in.
Model 1100 1100L
380mm or 15 in. 361mm or 14-1/4 in.
1-4-2. With Options
W
H
4121s003
D W 380mm or 15 in. 361mm or 14-1/4 in. 520mm or 20-1/2 in. 554mm or 21-3/4 in. D H
Model 1100 1100L
2
Chapter 1
Chapter 2: GENERAL INFORMATION
2-1. Specifications
Chapter 2
2-1-1. Printer
Type Printing System Exposure System Resolution Media Size Desk-Top Laser Beam Printer Electrostatic dry powdered imaging system Laser diode + Polygon Mirror scanning 600 DPI (dot/inch) Standard size: A4, A5, JIS B5, Letter, Legal, Executive, Invoice, Envelope (DL, C5, B5, Commercial 10, Monarch) Non standard size: Widths: 76 mm to 216 mm (3 in. to 8-1/2 in.), Lengths:127 mm to 356 mm (5 in. to 14 in.) Ordinary plain paper (60 to 90 g/m2 or 16 to 24 lbs.), Recycled paper (60 to 90 g/m2 or 16 to 24 lbs.), Thick paper (90 to 163 g/m2 or 24 to 43 lbs.), Transparencies, Envelopes, Letterhead, Labels within 19 sec. (A4 or Letter) 10 pages per minute (A4/Letter-size print) within 23 sec. *when power supplied at 23°C/73.4°F 60.6 mm/sec. 2-way system Multipurpose Tray (maximum: 150 sheets) Second Paper Cassette Unit (maximum: 500 sheets) Manual feed tray (1 sheet) Face down (maximum: 100 sheets) Face up (maximum: 20 sheets) Charging brush roller & Pre-charging blade charging Single element developing system FMT (Fine Micro Toning) system Developing Bias adjusting system Transfer Roller system
Media Type
First Printing Time Multi Print Speed Warm-up Time System Speed Paper Feeding System
Paper Exit System Drum Charging System Developing System Density Control Image Transfer System
3
PC Drum Drum Cleaning System Paper Separating System Fusing System Dimensions
OPC (Organic Photoconductor) Non-cleaner system Curvature separating system and charge neutralizing pin Heated roller system Width: 361 mm (14-1/4 in.) Depth: 283 mm (11-1/4 in.) Height: 262 mm (10-1/4 in.) (Closing the Paper Take-up Tray and the Face-down Tray and without second paper cassette unit) Approximately 7 kg (15-1/2 lbs.) *without Cartridges Drum cartridge: approx. 0.3kg Toner cartridge:approx. 0.5kg(after T/C) approx. 0.4kg (initial T/C) AC120V, AC220-240V 50/60Hz ±3Hz 120V Area: Operating: 690 W or less Standby (average): 270 W or less 220-240V Area: Operating: 700 W or less Standby (average): 270 W or less
Weight
Power Supply Voltage Frequency Power Consumption
Operating Environment Drum Cartridge Life
10-35°C, 15-85%RH 20,000 prints or more (in continuous printing) 16,000 prints or more (in single printing) *Black/White ratio=5% 6,000 prints or more (in continuous printing) 4,800 prints or more (in single printing) *Black/White ratio=5% 3,000 prints or more (in continuous printing) 2,400 prints or more (in single printing) *Black/White ratio=5% Power Cord, Toner Cartridge, Drum Cartridge Face-up Tray, Second Paper Cassette Unit, Expansion DIMM (1100 only)
Toner Cartridge Life (after T/C) Toner Cartridge Life (initial T/C) Standard Accessories Options
4
Chapter 2
2-1-2. Second Cassette Unit
Media Type Ordinary plain paper (60 to 90 g/m2 or 16 to 24 lbs.), Recycled paper (60 to 90 g/m2 or 16 to 24 lbs.) A4, B5, Letter, Legal, Executive with an exclusive use cassette Up to 500 sheets One-way system with paper claw separation mechanism supply from main unit (DC24V, DC5V) supply from main unit Width: 380 mm (15 in.): 1100 Width: 361 mm (14-1/4 in.): 1100L Depth: 323 mm (12-3/4 in.) High: 125 mm (5 in.) *without Paper Cassette approx. 4kg (8-4/5 lbs.) *without Paper Cassette Paper cassette (A4 or Letter) Paper cassette (A4, B5, Legal, Letter, Executive)
Chapter 2
Media Size Cassette Capacity Paper Feeding System Power Source Drive Source Dimensions
Weight Standard Accessory Option
5
2-1-3. Controller (fro 1100)
ASIC (CPU) Imaging Method Memory configuration D8401 (IBM PowerPC401GF) Mitsubishi M3807 Band Buffer method (bitmap method) Standard ROM: 4 MB Standard RAM: 4 MB (16Mbit SDRAM 1M x 16bit x 2) Expansion Memory (DIMM) slot: 1 slot Capacity: 16, 32, 64, 128 MB Function type: Burst mode Access speed: 70 ns or less Number of pins: 168 pin Operating voltage: 3.3 V Non-ECC (However, ECC can be used instead.) CAS Latency 2 (CAS Latency 3 is not compatible.) Synchronous LVTTL compatible input and output Centronics IEEE1284/ ECP Type B connector Ethernet 10/100Base-T (Option) Fine-ART for resolution that actually exceeds 1200 dpi Function to regulate the toner consumption Function to regulate the toner consumption 300 x 300 dpi, 600 x 600 dpi + EET *EET: Edge Enhanced Technology (Fine-ART) Compatible with PCL5e & PCLXL2.0 (HP LaserJet 4000) Standard (PCL5e) driver: For Windows95/98 Enhanced (PCLXL) driver: For Windows95/98/NT4.0/ 3.1 and Windows2000
DIMM specifications
Standard Interface Network Interface Fine-ART Mode Toner Saver Mode Image Density Resolution Emulation Printer Driver
Printer Resident Fonts 1 bitmap font (Agfa USFT Ver3.3) 45 outline fonts (35 Agfa Intellifont & 10 TrueType fonts) Screen Fonts Test Print Function 96 Intellifont and TrueType fonts for windows Configuration Page (press panel button of printer) Demo Page (Select from Software Control Panel) Font List (Select from Software Control Panel)
6
Chapter 2
2-1-4. Controller (for 1100L)
CPU ASIC Imaging Method Mitsubishi M38073M4 12MHz Destiny D6004 QuickASIC DestinyWinstyler
Chapter 2
Memory configuration Standard: RAM 4MB Standard Interface Toner Saver Mode Image Density Resolution Printer Language Printer Driver Centronics IEEE1284/ ECP Type B connector Function to regulate the toner consumption Function to regulate the toner consumption 600 x 600 dpi, 300 x 300 dpi GDI (DestinyWinstyler): Resident interpreter Quickpage Driver For Windows95/98/ NT4.0/3.1X and Windows2000
7
2-2. Parts Identification
1 8
5 9 2 6 3 4
4121s004
4121s005
4121s006
7
1. Face-up Tray (option) 2. Top Cover Release Button 3. Power Switch 4. Second Paper Cassette Unit (option) 5. Face-down Tray 6. Multi-purpose Tray 7. Second Paper Cassette (option) 8. Drum Cartridge 9. Toner Cartridge
8
Chapter 2
10
11
Chapter 2
12
13
14 4121s007
15
10. Face-up Exit Roller 11. Face-up/Face-down Selection Switch 12. Interface Connector 13. Cooling Fan 14. Power Cord 15. Power Cord Socket
9
2-3. Component Layout
10
9 8 1
14 15
2 3 4 16 17 18 19
5 6
20 21
7
4121s009
11
12
22
1. Face-down tray 2. Print Head unit 3. Paper Empty Sensor (PE1) 4. Multi-purpose Tray 5. Paper Size Guide 6. Sheet Second Cassette 7. Paper Lift-up Plate 8. Toner Cartridge 9. Drum Cartridge 10. Face-up/Face-down Selection Switch 11. Paper Empty Detecting Lever 12. Second Paper Take-up Roller 13. Face-up Tray
14. Fusing Separator 15. Paper Exit Sensor (PS3) 16. Backup Roller 17. Heat Roller 18. P Drum .C. 19. Image Transfer Roller 20. Paper Take-up Sensor (PS1) 21. Second Paper Cassette Unit 22. Paper Take-up Roller
6, 7, 11, 12, 13, 21: option
10
Chapter 2
13
2-4. Drive Section
2-4-1. Overview
The Main Motor (M1) transmits the drive to the rollers of the printer and the Second Paper Cassette Unit via each gear as shown below.
Chapter 2
Main Motor (M1) Drive Transmission Gear
4121s010
Paper Exit Roller (Face-up) Paper Exit Roller (Face-down) Backup Roller Heat Roller Drum Charge Brush Image Transfer Roller PC Drum Sleeve Roller Toner Transport Roller
Paper Take-up Roller
2nd Paper Take-up Roller
Second Paper Cassette Unit Section (option)
11
2-5. Electrical Components Layout
2-5-1. Printer
TH1 TS1 HV1
PS3
H1 M2
PS1
S2 M1 PU1 S1 SL1 4121s011c PE1 PH
H1 ............ Heater Lamp HV1 .......... High Voltage Unit M1 ............ Main Motor M2 ............ Cooling Fan Motor PE1 .......... Paper Empty Sensor PH ............ Print Head Unit PS1 .......... Paper Take-up Sensor PS3 .......... Paper Exit Sensor PU1 .......... Power Unit S1............. Power Switch S2............. Interlock Switch SL1........... Paper Take-up Solenoid TH1 .......... Thermistor TS1 .......... Thermostat
12
Chapter 2
2-5-2. Controller
PWB-P
Chapter 2
4121s012
PWB-P ..... Controller Board
2-5-3. Second Paper Cassette Unit (option)
PWB-A PI2
SW21 SL21
4121s013
PI2............ Paper Empty Sensor PWB-A ..... Connecting Board SL21......... Paper Take-up Solenoid SW21 ....... Cassette Type Detecting Switch
13
2-6. Electrical Parts Function
2-6-1. Printer
Symbol H1 HV1 Name Heater Lamp High Voltage Unit Function A halogen lamp that supplies heat to the Fusing Rollers. (450W) Supplies power to the following sections: - Drum Charge Brush: Charged voltage - Developing Sleeve Roller: Developing bias voltage - Developing Tone Regulation Plate: Developing blade voltage - Developing Toner Collecting Plate: Developing Lower Seal voltage - Image Transfer Roller: Image transfer voltage Is the drive source of the printer. Exhaust the heat in the body A regular heptagon polygon mirror is installed, and rotates at high speed and makes the laser scan in scanning direction. Detects the presence of paper. The signal is L when the paper is detected. Detects when paper is picked up. The signal is H when the paper is detected. Detects when the paper is fed out. The signal is H when the paper is detected. Converts the power voltage from AC voltage into DC voltage and supplies that to H1. Communicates with the personal computer and controls all printer operation.
M1 M2 M3
Main Motor Cooling Fan Motor Polygon Motor (Inside of the Print Head Unit) Paper Empty Sensor
PE1
PS1
Paper Take-up Switch
PS3
Paper Exit Sensor
PU1
Power Unit
PWB-P
Controller Board
14
Chapter 2
Symbol PWB-D
Name Laser Diode Drive Board (Inside of the Print Head Unit) Power Switch Interlock switch
Function Detects the start point of printing via the laser diode and SOS sensor, and irradiates the P Drum with the laser .C. beam according to the image signals. Turns ON or OFF the printer. Detects the opening or closing of the Top Cover. Cuts output voltage (except 5 VDC) when the Top Cover is open. Transmits the drive of the Main Motor to the Paper Take-up Roller. Detects the temperature of the Heat Roller, measures the temperature on the surface of the Heat Roller and sends to the Heater control circuit. Cuts power to the Heater Lamp (H1) when overheating (210°C) is detected at the Fusing Section.
Chapter 2
S1 S2
SL1 TH1
Paper Take-up Solenoid Thermistor
TS1
Thermostat
2-6-2. Second Paper Cassette Unit (option)
Symbol SL21 Name Paper Take-up Solenoid Function Controls gears and clutches to transmit the drive from the Main Motor to Paper Take-up Rollers. The drive is transmitted when the solenoid is turned on. Triple push switches for detecting the cassette type according to the paper size. Detects the presence of paper. The signal is L when the paper is detected. Sends/receives power and control signals from the printer to/from components in the Second Paper Cassette Unit.
SW21
Cassette Type Detecting Switch Paper Empty Sensor (on the PWB-A) Connecting Board
PI2
PWB-A
15
2-7. Explanation of Control Panel for 1100
The Control Panel has three Indicator lights and one button.
Ready (Green)
Paper (Amber)
Paper (Amber)
Panel Button
4109s83
2-7-1. Indicator Lights
Different combinations of the three Indicator lights indicate the current printer status and let the user know what the printer is doing. The details of the current printer status appears on the host computer.
16
Chapter 2
2-7-2. Indicator Status
Error Paper Ready Printer Status
Chapter 2
Off On Off Off Off Off On Blinking
Off On Off Off Off Off Off Off
Off On On Blinking Slow Blinking Off Off Off
Power is Off Power on initial setting Printer is ready Warming up. Power save Mode Receiving data Top cover is open Print job is too complex Memory overflow The wrong size of paper were fed into the printer during printing
Off
Blinking
Off
Printer is standing by waiting for manual paper feed Printer is standing by waiting for feeding from paper feed tray
On Off Blinking
On On Blinking
Off Off Blinking
Paper misfeed Almost out of paper Printer Error (Refer to Next Page.)
17
Printer Error Indicate Pattern Whenever any of the indicator light patterns shown below (two patterns are shown alternately) appears, try turning the printer off and then back on again. Error 1st Blinking Off On 2nd On Off On Blinking On On Off Off Off Blinking On Off Off On On Engine communication error. Controller error. Engine error (laser). Engine error (fusing unit). Engine error (polygon scanner). Network communication error. Paper Ready Printer Status
18
Chapter 2
2-7-3. Control Panel Button Function
The panel button can be used to perform various operations according to the status of the printer. · · · · Function Reset the counter Reset the counter Job cancel Print configuration page Form feed Explanation Use the following procedure whenever you want to reset the counter. 1. Turn off the printer. 2. While holding down the panel button, turn on the printer. 3. Keep the panel button held down, and the Ready indicator will start to blink. After the Ready indicator has blinked for about 5 seconds, release the panel button. This should cause all the indicators to start to blink. 4. After all the indicators blink, the printer enters the counter reset mode. .20 P Use the following procedure whenever you want to cancel the current job. 1. Hold down the panel button for more than 5 seconds. 2. After all the indicators are lit, release the panel button to cancel the print job. Use the following procedure whenever you want to configuration for printer. · Press the panel button while printer is idle without any errors and job requests. .21 P Use the following procedure to resume printing after an error occurs dues to any one of the following causes. Print job is too complex. · Memory overflow · Almost out of paper · Wrong size paper was fed into the printer. Press the panel button to perform a form feed.
Chapter 2
Job Cancel
Print Configuration Page
Form Feed
19
2-7-4. To Reset the Counter of the Toner Cartridge (only 1100)
Perform the following procedure to reset the toner cartridge counter after you replace the toner cartridge. 1. While holding down the panel button, turn on the printer. 2. Keep the panel button held down, and the Ready indicator will start to blink. After the Ready indicator has blinked for about 5 seconds, release the panel button. This should cause all the indicators to start to blink. 3. After confirming that all the indicators are blinking, press and hold down the panel button again for at least 5 seconds. During this time, the Ready indicator only continues to blink and all the other indicators turn off. 4. Release the panel button and only the Paper indicator starts to blink. 5. After a few seconds, all the indicators start to blink again, indicating that the toner cartridge counter has been reset. 6. Turn off the printer. The printer will be ready to print the next time you turn it on.
2-7-5. To Reset the Counter of the Drum Cartridge (only 1100)
Perform the following procedure to reset the drum cartridge counter after you replace the drum cartridge. 1. While holding down the panel button, turn on the printer. 2. Keep the panel button held down, and the Ready indicator will start to blink. After the Ready indicator has blinked for about 5 seconds, release the panel button. This should cause all the indicators to start to blink. 3. After confirming that all the indicators are blinking, briefly press the panel button. This causes the Error indicator to blink and all the other indicators to turn off. 4. After a few seconds, all the indicators start to blink again, indicating that the drum cartridge counter has been reset. 5. Turn off the printer. The printer will be ready to print the next time you turn it on.
20
Chapter 2
2-7-6. Test Print Function (only 1100)
Operation Configuration Page Sample Press the panel button while printer is idle without any errors and job requests.
Chapter 2
21
2-8. Explanation of Control Panel for 1100L
The Control Panel has two Indicator lights.
Error (Amber) Ready (Green)
4109s84
2-8-1. Indicator Lights
Different combinations of the two Indicator lights indicate the current printer status and let the user know what the printer is doing. The details of the current printer status appears on the host computer.
22
Chapter 2
2-8-2. Indicator Status
Error Ready Conditions
Chapter 2
Off On Off Slow Blinking
Off On On Off
Power is Off Power on initial setting Printer is ready Warming up. Power save Mode Receiving data
Off
Blinking
Processing data Printing Paper misfeed
On
Off
Top Cover is open Out of paper Paper of the wrong size was fed into the printer Engine error.
Blinking
Off
Blinking Blinking
Engine communication error Controller error
23
2-9. Electrical Service Parts on P.W.Boards
2-9-1. PWB-P (Controller Board for 1100)
LED1(OR) LED2(OR) LED3(GR) S2 COM1 U5 U10 U12 JP2
U9 U11 VR101
TP1 TP2
COM2
PJ5(8P) PJ9(5P) PJ12(4P)
IC1 PJ3(2P) PJ6(5P) PJ8(3P) PJ2(2P) PJ7(7P)
CON3(36P)
PJ13(4P)
PJ10(2P)
PJ11(12P)
PJ4(11P)
4121s014
24
Chapter 2
Symbol CON1 CON2
Item Connector Connector Connector
Explanation Slot for 168-pin DIMM (max. 128MB) For Optional NIC Connector Parallel Connector (Centronics IEEE1284/Nibble compatible mode Type B Connector) M38073M4-A01FP DESTINY D6004PQFP-100 For Area Setting Upper Side: PageWorks 1100 (Inch) Lower Side: PagePro 1100 (Metric) Orange LED Orange LED Green LED Adjusts the Image registration margin. .70 P Serial EEPROM 2MB(1M x 16bit CMOS) SDRAM 2MB(1M x 16bit CMOS) SDRAM Firmware ROM2 Firmware ROM1 Adjusts the Image registration margin. .70 P
Chapter 2
CON3
IC1 IC101 JP2
CPU ASIC Jumper post
LED1 LED2 LED3 TP1 TP2 U5 U10 U12 U9 U11 VR1
LED LED LDE Test Point EEPROM SDRAM SDRAM ROM ROM Volume
25
2-9-2. PWB-P (Controller Board for 1100L)
D102(OR) D103(GR)
IC300 IC104 IC101
PJ5(8P) PJ9(5P) PJ12(4P)
VR1 PJ3(2P)
IC1 PJ102
PJ101(36P)
PJ6(5P)
PJ13(4P)
PJ10(2P)
PJ11(12P)
PJ4(11P)
PJ8(3P) PJ2(2P) PJ7(7P)
4121s015
Symbol D102 D103 IC1 IC101 IC104 IC300 PJ101
Item LED LED CPU ASIC DRAM DRAM Connector
Explanation Amber LED Green LED M38073M4-A01FP DESTINY D6004PQFP-100 2 MB (60nsec. First Page mode Type) 2 MB (60nsec. First Page mode Type) Parallel Connector (Centronics IEEE1284/Nibble compatible mode Type B Connector) For Area Setting Left Side: PagePro 1100L (Metric) Right Side: PageWorks 1100L (Inch) Adjusts the Image registration margin. .70 P
PJ102
Jumper post
VR1
Volume
26
Chapter 2
2-9-3. PU1 (Power Unit)
F1 VR1 S1
Chapter 2
CN2(7P)
CN1(2P) F2
CN3(2P)
4121s016
F1............. Protection Fuse (10A, 125V) F2............. Protection Fuse (4A, 125V) VR1 .......... For factory setting only [Do not touch]
2-9-4. HV1 (High Voltage Unit)
C B SS BL
4121s017
T
CN1(11P) VR1
C...............Drum Charging Voltage terminal (DC1286V/AC-811W) B ...............Developing Voltage terminal (DC100V/-340Vmax) BL .............Developing Toner Blade Voltage terminal (DC590Vmax) SS ............ Developing Lower Seal Voltage terminal (DC250V/-340V max) T ...............Image Transfer terminal (DC4000V/-1000V max.) VR1 .......... For factory setting only [Do not touch]
27
2-9-5. NIC (Network Interface Card option for 1100)
Jumper Post Default Position Setting
BYPASS
FACT
P.ACK
T.B.
ON
CS1
JP2
TEST
CS2
OP1
OP6
OP2
OP3
OP4
OP5
OP7
28
ON
Chapter 2
2-10. Timing Chart
2-10-1. Print Starting
(msec.)
Printing command (/PRINT)
6200(max.) 24.81
M2 normal rotation
Chapter 2
Polygon Motor (M3) Paper Take-up Sensor (PS1) Paper Take-up Solenoid (SL1/SL21) Main Motor (M1)
1st:52mm(min.) 2nd:99mm(min.) 600dpi:2039 1200dpi:2628 600dpi:560 1200dpi:1056 1st:200 2nd:450 1000 3850 DC Charge 1st:6.5mm 2nd:13.5mm AC Charge(48.92Hz11)
820
Drum Charge (signal)
300(max.)
200
Laser Exposure Drum Charge (output) Development (signal)
950
_
200
1000 950
16mm _ DC ( )
200 1st:59.5mm 2nd:66.5mm
AC
Development (output) Image Transfer (signal) Image Transfer (output) B/W ratio Feed back
_ +
_
+
_
_
_
1st:15.5mm 2nd:21.0mm
+
2-10-2. Print Ending
Paper Exit Sensor (PS3) Polygon Motor (M3) Main Motor (M1) Drum Charge
27mm 188.5mm
Laser Exposure Development
5mm
Image Transfer
29
Chapter 3: MECHANICAL/ELECTRICAL
3-1. Paper Path
- Paper can be fed into the printer either from the Multi-purpose Tray (150 sheets). - The paper feed system can be extended to a 3-way system by Installing the Second Paper Cassette Unit (500 sheets) adds another feeding method. - The paper fed by the Paper Take-up Roller is transported to the Image Transfer Roller, Fusing Roller and then Paper Exit Roller. After this, the paper is fed out onto the Print Tray.
Chapter 3
Face-down
Face-up
Exit Laser Exposure Print Head Unit Fusing Drum Charge P Drum .C. Development Image Transfer
Multi-purpose Tray
Paper Take-up
Paper Take-up
Second Paper Cassette Unit (option)
4121s020
30
3-2. Paper Take-up Section
3-2-1. Multi-purpose Tray Mechanism
- When the Paper Take-up Solenoid (SL1) is energized, the drive of the Main Motor (M1) is transmitted to the Paper Take-up Roller via the Paper Take-up Clutch (one-way clutch) to turn the Paper Take-up Roller one revolution. - At the same time, the Depressing Cam turns and lifts the Tray Lifting Plate, and the first (top) sheet of paper on the tray is fed to the printer. - The Fixed Separating Pad is used for the paper separation system. It prevents the second or later sheets of paper from being fed together with the top sheet. - The printer has no paper size detecting mechanism. It recognizes the paper size by the paper length which is calculated by the Paper Take-up Sensor (PS1) activation timing. Therefore, papers having different widths are recognized as the same paper size if they have the same length. Paper Take-up Sensor (PS1) Paper Take-up Roller Depressing Cam
Paper Empty Sensor (PE1)
Tray Lifting Plate Paper Tray Paper Take-up Clutch Paper Take-up Solenoid (SL1) When SL1 is de-energized When SL1 is energized Paper Tray Depressing Cam
4121s021
4121s022
4121s023
Tray Lifting Plate
31
Chapter 3
Paper Empty Detection When the Multi-purpose Tray runs out of paper, the actuator for the Paper Empty Sensor (PE1) drops into the cutout in the Paper Tray. This activates the Paper Empty Sensor and the printer detects that the Multi-purpose Tray has run out of paper.
3-2-2. Second Paper Cassette Unit (option)
Mechanism - Since a drive motor is not installed in this unit, the drive of M1 is transmitted to the paper take-up and transport sections in the unit via the Drive Transmission Gear. - Although the feeding method is the same as the Multi-purpose Tray in the printer, the corner separation system is applied in this unit as the paper separating method. - Paper is separated at the corner by the paper separation claw in the paper cassette and the strength of paper itself (corner separation system). One sheet of paper is fed for each paper feed cycle. - The Paper Take-up Solenoid (SL21) in the unit is controlled by the printer via PWB-A in the unit. Drive Transmission Gear Paper Take-up Roller Connecting Board (PWB-A) Paper Empty Sensor (PI2)
Chapter 3
4121s024
Paper Take-up Solenoid (SL21)
Paper Empty Detection When the Paper Cassette runs out of paper, the actuator for the Paper Empty Sensor (PI2) drops into the cutout in the Paper Lifting Plate. This activates the Paper Empty Sensor and the printer detects that the Paper Cassette has run out of paper.
32
Cassette Type Detection The paper size setup for the Paper Cassette is detected by the combination in which switches 1 to 3 of SW21 are turned on and off. The projections on the side of the Paper Cassette turn the three switches on or off. The printer determines the cassette type (paper size) by the combination of ON/ OFF states of the switches.
Cassette Type Detecting Switch (SW21)
OFF
ON
4121s026
projections
4121s025
Paper Cassette
SW21-3 SW21-2 SW21-1
The state of SW21 for each cassette type Cassette Type A4 B5 Letter Legal Executive No Cassette (Undefined) SW21-1 OFF ON OFF ON OFF OFF ON ON SW21-2 OFF ON ON OFF ON OFF ON OFF SW21-3 ON OFF OFF OFF ON OFF ON ON
33
Chapter 3
3-3. Drum Charge
3-3-1. Overview
- The P.C. Drum is charged with static electricity before laser exposure. - The Drum Charge Brush and the Pre-charge Film are used for the charging method. - The Drum Charge Brush and Pre-charge Film charging generate little ozone in the printer. Because the charge is directly applied to the P.C. Drum, the P.C. Drum can be charged by low voltage. At the same time, the P.C. Drum can be charged stably and evenly. - The Pre-charge Film supplies the charge to the P.C. Drum before being charged by the Drum Charge Brush to improve the charging efficiency. - The Drum Charge Brush is turned by the drive of the Main Motor (M1) via a gear. - The electric potential on the surface of the charged PC Drum is approximately-800 V. Drum Cartridge
Chapter 3
Drum Charge Brush
Laser Exposure Paper Dust Remover
Development Sleeve Roller
Pre-charge Film
Image Transfer Roller
4121s030
Drum Cover
1
PC Drum
2
4
1.Drum Charge Brush 2.PC Drum 3.Earth 4.Drum Charge Brush voltage
4110s031
3
34
3-4. Laser Exposure
Laser exposure is the process of creating an invisible static charge image on the PC Drum by the laser beam emitted from the Print Head Unit. This process is controlled as follows in order to appropriately time image printing.
PC Drum
Print Head Unit
SOS Sensor (PWB-D) Laser Diode Polygon Motor (M3)
4121s028
4111s032
In the sub-scanning direction (vertical direction) - When the printer receives the PRINT signal, the Polygon Motor (M3) and the Main Motor (M1) rotate and the paper is fed into the printer. - The printing in the sub-scanning direction is started when the controller board sends the VIDEO signal to the Print Head a certain time after the leading edge of the paper activates the Paper Sensor (TOD signal). - The print starting position for the 2nd line is decided by delaying the VIDEO signal sending timing. In the scanning direction (horizontal direction) - The SOS Sensor is installed on the Laser Diode Control Board (PWB-D) to unify the laser emission timing for each scan line.
35
Chapter 3
PRINTING AREA - The controller sends the VIDEO signal at the appropriate paper size to the engine (Controller Board). - The controller determines the start point of printing according to the TOD signal (sub-scanning direction) sent from the engine (Controller Board) and the HSYNC signal. - Laser exposure is started when the print head receives the VIDEO signal.
/VIDEO
4mm
Print Area
4mm
36
/TOD
/HSYNC
/VIDEO
Chapter 3
3-5. Development
3-5-1. An Overview
- Toner is applied to the invisible static image on the PC Drum and a toner image is created on the drum surface. Toner Cartridge
7 1 2 8
4121s031
6
5 3 4
6 4 7 3 8
9 10 11
4121s032
4121s034
0992s24
11 10 9
37
Chapter 3
3-5-2. Explanation of each part
No. 1 2 3 Name Toner Hopper Toner Agitating Screw Toner Transport Roller Sleeve Roller Resin Sleeve PC Drum Function Contains toner. Agitates the toner in the Toner Hopper and sends the toner to the Toner Transport Roller. Transports the toner to the Sleeve Roller. Turns the Resin Sleeve. Carries the toner to the PC Drum surface for development. Exposed to laser to create an invisible image and rotates to carry the developed image to the paper surface. Spreads a thin, even coat of toner over the Resin Sleeve. The toner is negatively charged when passing between this Blade and the Resin Sleeve. Collects the toner remaining on the Resin Sleeve. DC-550V (DC590V max.)
Chapter 3
4 5 6
7
Toner Blade
8 9
Bias Seal Developing Blade Voltage terminal (VBL) Developing Voltage terminal (VB) Developing Lower Seal Voltage terminal (VSS)
10 11
DC-300V (DC4000V/DC-1000V max.) DC-300V (DC-250V/-340V max.)
38
3-6. Image Transfer
3-6-1. An Overview
- Image transfer is the process of transferring the toner image created on the PC Drum in the developing process to paper. - Roller Image Transfer is used instead of Corona Image Transfer as the image transfer method. - In Roller Image Transfer, there is little generation of ozone due to corona discharge. Also, there is no blur of toner because the paper is always pressed by the PC Drum and the Image Transfer Roller. - When cleaning the Image Transfer Roller and before printing, reverse bias is applied. - The residual electric potential on the paper is dissipated via a discharge needle. PC Drum
Paper
4121s034
Image Transfer Roller
Paper Discharge Needle PC Drum Image Transfer Roller
4121s035
39
Reverse Bias
Image Transfer Bias
Chapter 3
3-7. Fusing
3-7-1. An Overview
- The toner image transferred onto the paper is securely fixed to the paper. - A heat roller system is used as the fusing system. The toner image is fused by the Heat Roller heated by the Heater Lamp, and securely fixed by the pressure between the Heat Roller and Backup Roller.
Paper Separator Thermostat (TS1)
Paper
Chapter 3
Backup Roller Thermistor (TH1)
Heater Lamp (H1) Fusing Entrance Guide Heat Roller
4121s036
3-7-2. Fusing Temperature Control Circuit
- The Thermistor (TH1) detects the surface temperature of the Upper Fusing Roller and inputs that analog voltage into IC1A-78. Corresponding to this data, the Heater Lamp ON/OFF signal is output from IC1A-55, causing the Heater Lamp (H1) to turn ON or OFF to control the fusing temperature. - When the Heater Lamp is not turned OFF even if the Thermistor detects a high temperature malfunction (if the surface temperature of the Upper Fusing Roller exceeds 210°C), the signal from IC1A-79 changes from L to H to turn OFF the Heater Lamp forcibly.
PWB-P
PJ2 1 2
PJ7 1 2 3 4 5 6 7
78 CMPIN/AN8/P63
TH1 PU1
+24V GND GND +5V SLEEP_MODE 24V_MON FUSER_LAMP
1 2
1 2
DC5V
GND GND
H1
CN1 1 HEAT_N 2 N.C. 3 HEAT_L
CN2 1 2 3 4 5
6 7
IC1
L
DT1
IC2
H
3 1 2
L L
79 CMPOUT 55 P01
TS1
DC5V
GND
L H1: ON H H1: OFF
4121s37
40
The printer is initialized upon power supply. The printer then starts warming-up and the Heater Lamp lights. The temperature is controlled as follows. Mode 1 The temperature is controlled to maintain 115°C during standby and 195°C during printing. If this mode continues for 90 seconds, it will shift to mode 2. Mode 2 The temperature of the Heat Roller falls gradually to about 185°C from about 195°C. If this mode continues for 208 seconds, it will shift to mode 3. Mode 3 The temperature is controlled to maintain 115×C during standby and 185×C during printing. Unless an error occurs or a top cover is opened, this mode is maintained. Warming-Up 195°C Printing 185°C Temperature (°C) Thermistor detecting temperature
Standby 115°C Mode 1: 90sec Mode 2: 208sec Mode 3
Temperature immediately after temperature control start The state before discontinuation of temperature control Mode 1, warming-up Mode 2, 3 or Power OFF 50°C or more, less 115°C or more than 115 °C
less than 50°C Mode 1 Mode 1
Mode 2
Mode 3
41
Chapter 3
3-8. Paper Exit
3-8-1. Face-up/Face-down Selection Mechanism
After fusing, the paper is ejected onto the Face-down Tray or the Face-down Tray by the Face-up/Face-down Selection Mechanism. An optional Face-up Tray (capacity 20 sheets) can also be selected. Switching the paper exit to use the Face-up Tray is done with the Face-up/Face-down Selection Switch. Face Up/Face down Selection Switch Face-up Output
Chapter 3
Face-down Output Face-up Exit Roller
Paper Exit Guide Face-down Exit Roller
4121s039
Face-down output It is ejected to the Face-down Tray at the top of the printer. Face-up output It is ejected onto the Face-up Tray option. Even when there is no Face-up Tray, face-up output is possible. Tray Capacity (Ordinary Plain Paper) Face-down Tray Face-up Tray Max. 100 sheets Max. 20 sheets
42
Chapter 4: MAINTENANCE/DISASSEMBLY
4-1. Precautions for Maintenance/Disassembly
4-1-1. Precautions for Disassembly
Observe the following precautions whenever servicing the printer. - Be sure to unplug the printer from the outlet before attempting to service the printer. - To reassemble the printer, reverse the order of disassembly unless otherwise specified. - The basic rule is not to operate the printer anytime during disassembly. If it is absolutely necessary to run the printer with its covers removed, use care not to allow your clothing to be caught in revolving parts such as the gears, rollers and motor. - Never touch the terminals of electrical parts or high-voltage parts such as the High Voltage Unit. - Be sure to handle the Fusing Unit carefully as the unit is still hot for a while after the printer is stopped. - Always unplug connectors by holding the connector housing. - Be sure to use the fuse of the specified rating - Do not forget to install the ground wire or ground plate to ensure positive conduction. Install the screw with a toothed washer in the right position at reassembly.
Chapter 4
4-1-2. Precautions for Handling the Laser Equipment
- When a service job needs to be performed in the laser beam path, such as when working around the Print Head Unit and the Drum Cartridge, be sure to turn the printer OFF first. - A highly reflective tool can be dangerous if it is brought into the laser beam path. Use utmost care when handling tools on the user's premises. - If the job requires that the printer be left ON, take off your watch and ring, and wear laser protective goggles which must meet the following laser specifications: Max. power: 0.6 mW Output wavelength: 770 - 810nm
4-1-3. Parts not to be touched
The following parts must not be removed, disassembled or adjusted. - The parts where the mounting screws are painted red. - Print Head Unit
4-1-4. Instructions for Handling the PWBs with MOS ICs
The following precautions must be observed when handling circuit boards with MOS (Metal Oxide Semiconductor) ICs.
43
During Transportation/Storage:
- During transportation or when in storage, new circuit boards must not be indiscriminately removed from their protective conductive bags. - Do not store or place circuit boards in a location exposed to direct sunlight. - When it becomes absolutely necessary to remove a board from its conductive bag or case, always place it on its conductive mat in an area as free as possible from static electricity.
During Replacement:
- Before unplugging connectors from the circuit boards, make sure that the power cord has been unplugged from the power outlet. - When removing a board from its conductive bag or case, do not touch the pins of the ICs or the printed pattern. Place it in position by holding only the edges of the board. - Before plugging connectors into the board, make sure that the power cord has been unplugged from the power outlet.
During Inspection:
- Avoid checking the IC directly with a multi-meter; use connectors on the board. - Never create a closed circuit across IC pins with a metal tool. - Where it is absolutely necessary to touch the ICs and other electrical components on the board, be sure to ground your body.
4-1-5. Precautions for Handling the Drum Cartridge During Transportation/Storage:
- Use the specified carton whenever moving or storing the Drum Cartridge. - The storage temperature is in the range between -20°C and +40°C.
Handling:
- As the P.C. Drum is extremely sensitive to light fatigue and takes long time to recover sensitivity, never open the protection cover or expose the P.C. Drum to direct sunlight for long periods time. - Use care not to contaminate the surface of the P.C. Drum with oil-base solvent, fingerprints, and other foreign matter. - Do not scratch the surface of the P.C. Drum.
44
Chapter 4
4-2. Maintenance Schedule List
Replacement Cycle Parts (Unit) Cleaning Cycle Continuous Printing 20,000 prints 6,000 prints 3,000 prints Single Printing Refer to
Drum Cartridge Toner Cartridge (After) Toner Cartridge (Initial)
none none none
16,000 prints * 4,800 prints 2,400 prints
Image Transfer Roller none (Within A, C environment in Fig. below) Image Transfer Roller (Within B environment in Fig. below) Fusing Unit Paper Take-up Roller Second Cassette Unit Paper Take-up Roller none
135,000 prints 80,000 prints P 51 .
100,000 prints 50,000 prints P 51 .
Chapter 4
none
50,000 prints
. P 58 . P 50 . P 66
Replaced at the time of trouble due to ware. Replaced at the time of trouble due to ware.
*The Toner Cartridge and Drum Cartridge are user replaceable items. Fig. Temperature and Humidity Humidity(%)
85 70 65
C A
35
B
15
4121s081
0
10 15
25 30 35
Temperature(°C)
45
4-3. Required Service Tools
Tools Phillips Screwdriver (No. 1) Phillips Screwdriver (No. 2) Stubby Screwdriver Screwdriver
4-4. Screws
Illust No. 1305 1308 1112 DxL (mm) 3x6 3x8 3x6 Illust No. 3501 3504 3704 DxL (mm) 3x6 3x8 3x8 Illust No. 3907 DxL (mm) 3x8
46
Chapter 4
4-5. Disassembly Procedures
4-5-1. Disassembly procedure chart
4-5-2 Open the Top Cover. Toner Cartridge Drum Cartridge 4-5-5 Paper Empty Sensor (PE1) 4-5-5 Paper Take-up Cover 4-5-4 Image Transfer Roller Cover 4-5-4 Image Transfer Roller Controller Board (PWB-P) 4-5-8 4-5-9 Front Cover 4-5-10 Paper Take-up Unit 4-5-10 Paper Take-up Solenoid (SL1)
4-5-6 Right Cover
4-5-3 Paper Take-up Roller
4-5-7 Control Panel 4-5-9 Left Cover
Chapter 4
4-5-11 Top Cover 4-5-12 Rear Cover
4-5-18 Inter Lock Switch (S2) 4-5-19 Print Head Unit (PH) 4-5-13 Cooling Fan Motor (M2) 4-5-14 Main Motor Assy. 4-5-15 Fusing Unit 4-5-16 Backup Roller Heater Lamp (H1) Heat Roller Thermostat (TS1) Thermistor (TH1) Fusing Separator Paper Exit Sensor (PS3) 4-5-21 Paper Take-up Sensor (PS1) 4-5-22 High Voltage Board (HV1)
4-5-20 Power Unit (PU1)
47
Second Paper Cassette Unit 4-5-23 Second Paper Take-up Roller 4-5-25 Connecting Board (PWB-A) 4-5-26 Cassette Type Detecting Switch (SW21) 4-5-27 Second Paper Take-up Solenoid (SL21)
48
Chapter 4
4-5-2. Before disassembly procedure
Before disassembling the machine, the following units need to be removed. Drum Cartridge Toner Cartridge
Top Cover
Chapter 4
4121s041
1. Push the Top Cover Release Button and fully open the Top Cover. 2. Remove