Konica Minolta bizhub 160 Service Manual
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Konica Minolta bizhub 160 Service Manual

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SERVICE MANUAL
THEORY OF OPERATION
2005.04
2005.04
Ver. 1.0
Ver. 1.0

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Summary of Contents for Konica Minolta bizhub 160

  • Page 1 SERVICE MANUAL THEORY OF OPERATION 2005.04 2005.04 Ver. 1.0 Ver. 1.0...
  • Page 2 IMPORTANT NOTICE Because of possible hazards to an inexperienced person servicing this product as well as the risk of damage to the product, KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. (hereafter called the KMBT) strongly recommends that all servicing be performed only by KMBT-trained service technicians.
  • Page 3 [1] MODIFICATIONS NOT AUTHORIZED BY KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. KONICA MINOLTA brand products are renowned for their high reliability. This reliability is achieved through high-quality design and a solid service network. Product design is a highly complicated and delicate process where numerous mechanical, physical, and electrical aspects have to be taken into consideration, with the aim of arriving at proper tolerances and safety factors.
  • Page 4 SAFETY AND IMPORTANT WARNING ITEMS [2] POWER PLUG SELECTION In some countries or areas, the power plug provided with the product may not fit wall outlet used in the area. In that case, it is obligation of customer engineer (hereafter called the CE) to attach appropriate power plug or power cord set in order to connect the product to the supply.
  • Page 5 SAFETY AND IMPORTANT WARNING ITEMS [3] CHECKPOINTS WHEN PERFORMING ON-SITE SERVICE KONICA MINOLTA brand products are extensively tested before shipping, to ensure that all applicable safety standards are met, in order to protect the customer and customer engi- neer (hereafter called the CE) from the risk of injury. However, in daily use, any electrical equipment may be subject to parts wear and eventual failure.
  • Page 6 SAFETY AND IMPORTANT WARNING ITEMS Power Plug and Cord WARNING • When using the power cord set (inlet type) that came with this product, make sure the connector is securely inserted in the inlet of the product. When securing measure is provided, secure the cord with the fixture properly.
  • Page 7 SAFETY AND IMPORTANT WARNING ITEMS Wiring WARNING • Never use multi-plug adapters to plug multiple power cords in the same outlet. If used, the risk of fire exists. • When an extension cord is required, use a specified one. Current that can flow in the extension cord is limited, so using a too long extension cord may result in fire.
  • Page 8 SAFETY AND IMPORTANT WARNING ITEMS Ventilation CAUTION • The product generates ozone gas during operation, but it will not be harmful to the human body. If a bad smell of ozone is present in the following cases, ventilate the room. a.
  • Page 9 SAFETY AND IMPORTANT WARNING ITEMS Work Performed with the Product Powered On WARNING • Take every care when making adjustments or performing an operation check with the product powered. If you make adjustments or perform an operation check with the external cover detached, you may touch live or high-voltage parts or you may be caught in moving gears or the timing belt, leading to a risk of injury.
  • Page 10 SAFETY AND IMPORTANT WARNING ITEMS Safety Checkpoints WARNING • Check electrode units such as a charging corona unit for deterioration and sign of leakage. Current can leak, leading to a risk of trouble or fire. • Before disassembling or adjusting the write unit (P/H unit) incorporating a laser, make sure that the power cord has been disconnected.
  • Page 11 SAFETY AND IMPORTANT WARNING ITEMS Safety Checkpoints WARNING • Make sure that all screws, components, wiring, connec- tors, etc. that were removed for safety check and mainte- nance have been reinstalled in the original location. (Pay special attention to forgotten connectors, pinched cables, forgotten screws, etc.) A risk of product trouble, electric shock, and fire exists.
  • Page 12 SAFETY AND IMPORTANT WARNING ITEMS Handling of Service Materials CAUTION • Use only a small amount of cleaner at a time and take care not to spill any liquid. If this happens, immediately wipe it off. A risk of fire exists. •...
  • Page 13 SAFETY AND IMPORTANT WARNING ITEMS [4] Laser Safety • This is a digital machine certified as a Class 1 laser product. There is no possibility of danger from a laser, provided the machine is serviced according to the instruction in this manual.
  • Page 14 SAFETY AND IMPORTANT WARNING ITEMS [5] Used Batteries Precautions ALL Areas CAUTION Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions. Germany VORSICHT! Explosionsgefahr bei unsachgemäßem Austausch der Batterie.
  • Page 15 SAFETY AND IMPORTANT WARNING ITEMS U.S.A., Canada (CDRH Regulation) • This machine is certified as a Class 1 Laser product under Radiation Performance Stan- dard according to the Food, Drug and Cosmetic Act of 1990. Compliance is mandatory for Laser products marketed in the United States and is reported to the Center for Devices and Radiological Health (CDRH) of the U.S.
  • Page 16 SAFETY AND IMPORTANT WARNING ITEMS Finland, Sweden LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT VAROITUS! • Laitteen käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saat- taa altistaa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle laser- säteilylle. puolijohdelaser Laserdiodin suurin teho 15 mW aallonpituus 770-800 nm VARNING!
  • Page 17 SAFETY AND IMPORTANT WARNING ITEMS Laser Safety Label • A laser safety label is attached to the inside of the machine as shown below. 4980D070AB Laser Caution Label • A laser caution label is attached to the outside of the machine as shown below. 4980D061AA S-16...
  • Page 18 SAFETY AND IMPORTANT WARNING ITEMS PRECAUTIONS FOR HANDLING THE LASER EQUIPMENT • When laser protective goggles are to be used, select ones with a lens conforming to the above specifications. • When a disassembly job needs to be performed in the laser beam path, such as when working around the printerhead and PC Drum, be sure first to turn the printer OFF.
  • Page 19 SAFETY AND IMPORTANT WARNING ITEMS WARNING INDICATIONS ON THE MACHINE Caution labels shown are attached in some areas on/in the machine. When accessing these areas for maintenance, repair, or adjustment, special care should be taken to avoid burns and electric shock. 4980p0c003aa Do not throw into a fire 4980p0c001aa...
  • Page 20 SERVICE MANUAL THEORY OF OPERATION Main Unit 2005.04 Ver. 1.0...
  • Page 22 After publication of this service manual, the parts and mechanism may be subject to change for improvement of their performance. Therefore, the descriptions given in this service manual may not coincide with the actual machine. When any change has been made to the descriptions in the service manual, a revised version will be issued with a revision mark added as required.

  • Page 24: Table Of Contents

    Theory of Operation Ver. 1.0 Apr. 2005 CONTENTS Outline System configuration....................1 Product specifications ..................... 2 bizhub 160 / bizhub 161 ..................2 2.1.1 Main Unit....................... 2 2.1.2 GDI Printer Function (bizhub 160 only)............4 2.1.3 PCL Printer Function (bizhub 161 only) ............5 bizhub 160f / bizhub 161f ..................
  • Page 25 Theory of Operation Ver. 1.0 Apr. 2005 Scanner Motor Drive Control ................28 PH (Print Head) section ..................29 Construction ....................... 29 Laser Exposure Process ..................30 Laser Emission Timing ..................31 Laser Emission Area ..................32 9.4.1 Main Scanning Direction................32 9.4.2 Sub-scanning Direction................

  • Page 26: System Configuration

    Automatic Document Feeder DF-501 Mechanical Counter MC-502 Original Cover OC-503 Expansion memory (32 MB) EM-101 Main Unit NIC NC-501 bizhub 160, bizhub 160f, - Plate NIC Board bizhub 161, bizhub 161f Paper Feed Cassette PF-501 Internet Fax & Network Scan kit SU-502...

  • Page 27: Product Specifications

    2. Product specifications Theory of Operation Ver. 1.0 Apr. 2005 Product specifications bizhub 160 / bizhub 161 2.1.1 Main Unit Type Desktop Original scanning system Scanning in main scanning direction with a 3-line color CCD sensor, and scanning in sub-scanning direction with unit scanning and sheet feed-...
  • Page 28 Theory of Operation Ver. 1.0 Apr. 2005 2. Product specifications Continuous copy speed 12 copies/minute (at full size and 600 dpi × 300 dpi, with ADF) (copies/min.) Continuous print speed More than 16 sheets/minute (sheets/min.) (with plain A4R or Letter R paper) Warm-up time Less than 25 seconds (at a room temperature of 23 °C and at the rated voltage)

  • Page 29: Gdi Printer Function (Bizhub 160 Only)

    2. Product specifications Theory of Operation Ver. 1.0 Apr. 2005 2.1.2 GDI Printer Function (bizhub 160 only) Share with copier. Interfaces IEEE 1284 (Parallel), USB Revision 1.1 (except for Windows NT) Printer Language Fonts Windows Supported Operating Windows XP (SP2 or later),...

  • Page 30: Pcl Printer Function (Bizhub 161 Only)

    Theory of Operation Ver. 1.0 Apr. 2005 2. Product specifications 2.1.3 PCL Printer Function (bizhub 161 only) Memory capacity 32MB (on board for image processing). 16MB (on board for file system, input buffer). 64MB/ 128MB (optional, standard DIMM for file system. PC133 is recommended) Interfaces IEEE 1284 (Parallel), USB Revision 1.1 (except for Windows NT)

  • Page 31: Bizhub 160F / Bizhub 161F

    2. Product specifications Theory of Operation Ver. 1.0 Apr. 2005 bizhub 160f / bizhub 161f 2.2.1 Main Unit Type Desktop Original scanning system Scanning in main scanning direction with a 3-line color CCD sensor, and scanning in sub-scanning direction with unit scanning and sheet feed- through system Photo conductor type OPC (Organic Photo conductor)
  • Page 32 Theory of Operation Ver. 1.0 Apr. 2005 2. Product specifications Continuous copy speed 12 copies/minute (at full size and 600 dpi × 300 dpi) (copies/min.) Continuous print speed More than 16 sheets/minute (sheets/min.) (with plain A4R or Letter R paper) Warm-up time Less than 25 seconds (at a room temperature of 23 °C and at the rated voltage)

  • Page 33: Gdi Printer Function (Bizhub 160F Only)

    2. Product specifications Theory of Operation Ver. 1.0 Apr. 2005 2.2.2 GDI Printer Function (bizhub 160f only) Share with copier. Interfaces IEEE 1284 (Parallel), USB Revision 1.1 (except for Windows NT) Printer Language Fonts Windows Supported Operating Windows XP (SP2 or later), Systems Windows server 2003, Windows 2000 (SP4 or later),...

  • Page 34: Pcl Printer Function (Bizhub 161F Only)

    Theory of Operation Ver. 1.0 Apr. 2005 2. Product specifications 2.2.3 PCL Printer Function (bizhub 161f only) Memory capacity 32MB (on board for image processing). 16MB (on board for file system, input buffer). 64MB/ 128MB (optional, standard DIMM for file system. PC133 is recommended) Interfaces IEEE 1284 (Parallel), USB Revision 1.1 (except for Windows NT)

  • Page 35: Fax Function

    2. Product specifications Theory of Operation Ver. 1.0 Apr. 2005 2.2.4 FAX Function General Compatibility Super G3/ G3/ ECM (Error correction mode) Scanning Resolution STD: CD 8 lines/mm x FD 3.85 lines/mm Fine: CD 8 lines/mm x FD 7.7 lines/mm Super Fine: CD 8 lines/mm x FD 15.4 lines/mm Line PSTN/ PBX...
  • Page 36 Theory of Operation Ver. 1.0 Apr. 2005 2. Product specifications Other Features Automatic paper selection, Backup of memory, Confirmation of communication result, Daylight saving time, Date/Time setting, Display of destination station, Footer, Header, Package reception printing, Pause insert, Quick memory printing, Remote monitor, RX print cancel, RX printing mode (100 %reception/ Reception print mode/ Cut mode), Separate print, Smoothing, Speaker, Time zone, Tone signal transmission, TX cancel, RX cancel...

  • Page 37: Paper Path

    3. Paper path Theory of Operation Ver. 1.0 Apr. 2005 Paper path Paper exit to the Exit tray Multiple Bypass Tray paper feed Tray2 (option) 4980t1c001aa Tray1 paper feed Tray2 paper feed Registration conveyance • The system employs a two-way paper supply system, in which paper is fed from either Tray 1 or the Multiple Bypass Tray.

  • Page 38: Composition/Operation

    Theory of Operation Ver. 1.0 Apr. 2005 4. Components Composition/Operation Components IR Section Paper Exit Section PH (Print Head) Section IC (Imaging Cartridge) Section 4980t2c001aa Paper Take-up Section Image Transfer Section Fusing Section...

  • Page 39: Drive

    5. Drive Theory of Operation Ver. 1.0 Apr. 2005 Drive Scanner Unit Scanner Motor (M4) Cooling Fan Motor2 (M3) Cooling Fan Motor1 (M2) 4980M010AA Main Motor (M1) Paper Take-up Roller...

  • Page 40: Operating Sequence

    Theory of Operation Ver. 1.0 Apr. 2005 6. Operating Sequence Operating Sequence Copy Process 4980M018AC 1. PC Drum • A photoconductive layer is formed on an aluminum tube and an electrostatic latent image is formed on this photoconductive layer. 2. PC Drum Charging •...
  • Page 41 6. Operating Sequence Theory of Operation Ver. 1.0 Apr. 2005 10. Image Transfer • A DC positive charge is applied to the Image Transfer Roller to transfer the visible image on the surface of the PC Drum onto the paper. 11.

  • Page 42: Print Start Sequence

    Theory of Operation Ver. 1.0 Apr. 2005 6. Operating Sequence Print Start Sequence 6.2.1 When the pre-start control is not provided Start key Polygon Motor Main Motor Paper Take-Up Solenoid Drum Charge Drum charge DC Drum charge DC Output Exposure Output Developing Charge...

  • Page 43: When The Pre-Start Control Is Provided

    6. Operating Sequence Theory of Operation Ver. 1.0 Apr. 2005 6.2.2 When the pre-start control is provided Start key Polygon Motor Main Motor Paper Take-Up Solenoid Drum Charge Drum charge DC Drum charge DC Output Exposure Output Charge Developing Output Reverse bias Image Unexposed area...

  • Page 44: Ic (Imaging Cartridge) Section

    Theory of Operation Ver. 1.0 Apr. 2005 7. IC (Imaging Cartridge) section IC (Imaging Cartridge) section Overview • The illustration below shows the construction of the Toner Cartridge and the Developing Unit. • This printer adopts the single-component FMT (Fine Micro Toning) developing system. •...
  • Page 45 7. IC (Imaging Cartridge) section Theory of Operation Ver. 1.0 Apr. 2005 • The Imaging Cartridge consists of a T/C (Toner Cartridge) and a D/C (Drum Cartridge) (see the illustration below). D/C (Drum Cartridge) Imaging Cartridge 4136M511AA 4136M513AA T/C (Toner Cartridge)

  • Page 46: Pc Drum

    Theory of Operation Ver. 1.0 Apr. 2005 7. IC (Imaging Cartridge) section PC Drum • The PC Drum used in this printer is the organic photoconductor (OPC) type. • The drum consists of two layers - Charge Transport Layer (CTL) and the Charge Gener- ating Layer (CGL) - applied to an aluminum alloy base (cylinder).

  • Page 47: Developing System

    7. IC (Imaging Cartridge) section Theory of Operation Ver. 1.0 Apr. 2005 Developing System • The 1st Toner Blade located above the Sleeve Roller spreads a thin, even coat of toner over the Sleeve Roller. • A negative charge is applied to the 2nd Toner Blade, which negatively charges the toner. •...

  • Page 48: Detection Of Toner Cartridge

    Theory of Operation Ver. 1.0 Apr. 2005 7. IC (Imaging Cartridge) section Detection of Toner Cartridge 7.4.1 Installation Detection • The Imaging Cartridge, when loaded in position, is detected as follows. At the completion of a warm-up cycle, the IC chip built into the Toner Cartridge (TC detection board) detects electrically whether or not the cartridge is loaded in position.
  • Page 49 7. IC (Imaging Cartridge) section Theory of Operation Ver. 1.0 Apr. 2005 • The Toner Empty Detection Sensor has an LED and a reflecting light detection sensor built into it. Light from the LED enters the toner detection window and is reflected off the Reflection Mirror located inside the Toner Cartridge.

  • Page 50: Drum Charge

    Theory of Operation Ver. 1.0 Apr. 2005 7. IC (Imaging Cartridge) section Drum Charge • The PC Drum is charged with static electricity before laser exposure. • The Drum Charge Brush and the Pre-charge Film are used for charging. • Since the Drum Charge Brush and the Pre-charge Film directly deposit charge on the PC Drum, they produce little ozone.

  • Page 51: Ir Section

    8. IR section Theory of Operation Ver. 1.0 Apr. 2005 IR section Image Data Processing 1. Photoelectric Conversion • The CCD Sensor reads the light reflected off the original and converts the data to a cor- responding analog signal. 2. A/D Conversion •...

  • Page 52: Exposure Components Section

    Theory of Operation Ver. 1.0 Apr. 2005 8. IR section Exposure Components Section Lens 4980M019AA 1. Exposure Lamp • A CCFL lamp is used to illuminate the surface of the original. 2. 1st Mirror • Reflects the light reflected off the surface of the original, directing it to the 2nd Mirror. 3.

  • Page 53: Scanner Drive Mechanism

    8. IR section Theory of Operation Ver. 1.0 Apr. 2005 Scanner Drive Mechanism 8.3.1 Scanner Drive Mechanism • The Scanner Motor drives the Scanner Assy through the Timing Belt. Scanner Motor (M4) 4980M002AA Scanner Assy Timing Belt Scanner Motor Drive Control •...

  • Page 54: Ph (Print Head) Section

    Theory of Operation Ver. 1.0 Apr. 2005 9. PH (Print Head) section PH (Print Head) section Construction • The laser beam light emitted from the Print Head is used to scan the image as driven by the Polygon Motor. SOS Sensor G1 Lens Semiconductor Laser G2 Lens...

  • Page 55: Laser Exposure Process

    9. PH (Print Head) section Theory of Operation Ver. 1.0 Apr. 2005 Laser Exposure Process • The laser beam light emitted from the Print Head is used to create an electrostatic latent image on the surface of the PC Drum. •...

  • Page 56: Laser Emission Timing

    Theory of Operation Ver. 1.0 Apr. 2005 9. PH (Print Head) section Laser Emission Timing • When a READY signal is detected a given period of time after the print command has been issued, the Controller/Mechanical Control Board outputs a laser ON signal. •...

  • Page 57: Laser Emission Area

    9. PH (Print Head) section Theory of Operation Ver. 1.0 Apr. 2005 Laser Emission Area 9.4.1 Main Scanning Direction • The print start position is determined by the main scanning print start signal (/HSYNC) output from the Controller/Mechanical Control Board and the width of the paper. •...

  • Page 58: Paper Take-Up Section

    Theory of Operation Ver. 1.0 Apr. 2005 10. Paper take-up section 10. Paper take-up section 10.1 Tray 1 10.1.1 Paper Take-up Mechanism • When the Paper Take-Up Solenoid is energized, drive from the Main Motor is transmitted to the Paper Take-Up Roll through the Paper Take-Up Clutch, turning the Paper Take-Up Roller.

  • Page 59: Double Feed Preventive Mechanism

    10. Paper take-up section Theory of Operation Ver. 1.0 Apr. 2005 Electrical Parts Control Signal WIRING DIAGRAM PWB-P MPJ10P-2 PWB-P MPJ3P-2 10.1.2 Double Feed Preventive Mechanism • A fixed paper separator pad is used to prevent the second and subsequent sheets of paper from being taken up and fed in with the first one.

  • Page 60: Image Transfer Section

    Theory of Operation Ver. 1.0 Apr. 2005 11. Image transfer section 11. Image transfer section 11.1 Overview • The toner image formed on the surface of the PC Drum during the developing process is transferred onto the paper. • This printer adopts the roller image transfer system, in which the Image Transfer Roller is used to transfer the image onto the paper.

  • Page 61: Fusing Section

    12. Fusing section Theory of Operation Ver. 1.0 Apr. 2005 12. Fusing section 12.1 Overview • The toner image transferred onto the paper is securely fixed to the paper. • A heated roller system is used as the fusing system. The paper, to which the toner image has been transferred, is fed between the Fusing Roller heated by the Fusing Roller Heater Lamp and the Pressure Roller.

  • Page 62: Fusing Temperature Control

    Theory of Operation Ver. 1.0 Apr. 2005 12. Fusing section 12.2 Fusing Temperature Control 12.2.1 Temperature Changes (Plain Paper Having a Length of 186 mm or More) Temperature detected by Thermistor Warm-up 200 °C During print cycle (600 dpi) In standby 130 °C Mode 0: Mode 1:...

  • Page 63: Temperature Control Mode

    12. Fusing section Theory of Operation Ver. 1.0 Apr. 2005 12.2.3 Temperature Control Mode The fusing temperature is controlled during a print cycle according to the period of time elapsed from the completion of the warm-up cycle. • Mode 0 Mode 0 lasts for 3 min.

  • Page 64: Fusing Temperature Protect Control

    Theory of Operation Ver. 1.0 Apr. 2005 12. Fusing section 12.2.5 Fusing Temperature Protect Control Fusing Unit Thermistor (TH1) ANIN Comparative Voltage Fusing Roller Heater Lamp Thermostat (TS1) Comparator High-temperature Protect Signal FUSER_LAMP FUSER_LAMP_ Triac Controller/Mechanical Control Board Power Unit 4980M015AB <Soft protect>...

  • Page 65: Paper Exit Section

    13. Paper exit section Theory of Operation Ver. 1.0 Apr. 2005 13. Paper exit section 13.1 Paper Exit Mechanism • The paper exit mechanism transports the paper that has been subjected to the fusing process onto the Exit Roller. • The Exit Sensor detects not only a paper misfeed but also an open Upper Cover. Exit Tray Exit Roll Face-down Exit...

  • Page 66: Miscellaneous

    Theory of Operation Ver. 1.0 Apr. 2005 14. Miscellaneous 14. Miscellaneous 14.1 Cooling of the Printer Interior • The Cooling Fan Motors provided on the right and left frames of the printer draw outside air from the outside into the printer interior and discharge heat inside the printer out. It thereby prevents the temperature of the PH Unit and the printer interior from increasing.

  • Page 67: Original Cover Open/Close Detection Mechanism

    14. Miscellaneous Theory of Operation Ver. 1.0 Apr. 2005 14.2 Original Cover Open/Close Detection Mechanism • There is a magnet provided in the Original Cover, allowing the printer to detect the posi- tion of the cover whether the cover is raised or lowered. •...

  • Page 68: Data Flow Diagram

    Theory of Operation Ver. 1.0 Apr. 2005 15. Data flow diagram 15. Data flow diagram 4980M501AA...
  • Page 69 15. Data flow diagram Theory of Operation Ver. 1.0 Apr. 2005 1. GDI Print Data Flow 4980S526AA 2. PCL Print Data Flow 4980M502AA...
  • Page 70 Theory of Operation Ver. 1.0 Apr. 2005 15. Data flow diagram 3. FAX: Memory TX Data Flow 4980S521AA 4. FAX: Hook TX Data Flow 4980S522AA...
  • Page 71 15. Data flow diagram Theory of Operation Ver. 1.0 Apr. 2005 5. FAX: RX and Print Data Flow 4980S524AA 6. TWAIN Scan Data Flow 4980S523AA...
  • Page 72 Theory of Operation Ver. 1.0 Apr. 2005 15. Data flow diagram 7. Network GDI Print Data Flow 4980S525AA...
  • Page 73 15. Data flow diagram Theory of Operation Ver. 1.0 Apr. 2005 8. Network PCL Print Data Flow 4980M503AA...
  • Page 74 Theory of Operation Ver. 1.0 Apr. 2005 15. Data flow diagram 9. I-FAX Data Flow 4980S527AA...
  • Page 75 15. Data flow diagram Theory of Operation Ver. 1.0 Apr. 2005 Blank page...
  • Page 76 SERVICE MANUAL THEORY OF OPERATION DF-501 2005.04 Ver. 1.0...
  • Page 78 After publication of this service manual, the parts and mechanism may be subject to change for improvement of their performance. Therefore, the descriptions given in this service manual may not coincide with the actual machine. When any change has been made to the descriptions in the service manual, a revised version will be issued with a revision mark added as required.
  • Page 80 Theory of Operation Ver. 1.0 Apr. 2005 CONTENTS Outline Product specification ....................1 Paper path....................... 2 Composition/Operation Components......................3 Drive ........................3 Operation ........................ 4 Original Feed Section ................... 4 5.1.1 Document Take-up Mechanism..............4 5.1.2 Document Separation Mechanism ..............5 Transport / Exit Section..................
  • Page 81 Theory of Operation Ver. 1.0 Apr. 2005 Blank page...

  • Page 82: Product Specification

    Theory of Operation Ver. 1.0 Apr. 2005 1. Product specification Outline Product specification Name Automatic Document Feeder Installation method Inserted at upper-rear side of main unit Original type Plain paper: 35 to 128 g/m (9 to 34 lb.) A5, B5, A4, 8.5 × 14 (Legal), 8.5 × 11 (Letter), 5.5 × 8.5 (Invoice), Detectable Original sizes Custom size width: 138 to 216 mm;...

  • Page 83: Paper Path

    2. Paper path Theory of Operation Ver. 1.0 Apr. 2005 Paper path Original is fed 1382t1c001aa Image read position Transports to the original exit tray...

  • Page 84: Composition/Operation

    Theory of Operation Ver. 1.0 Apr. 2005 3. Components Composition/Operation Components Original fed section 1382t2c001aa Image read position Transports/Exit section Drive Paper Take-up Clutch (CL1-DF) Main Motor (M5-DF) Pick-up Roller Take-up Roller 1382M007AA Transport Roller...

  • Page 85: Operation

    5. Operation Theory of Operation Ver. 1.0 Apr. 2005 Operation Original Feed Section 5.1.1 Document Take-up Mechanism • The Original Detection Sensor detects a document that has been properly loaded in the Document Feeder. • The Document Stopper establishes the leading edge position of the document loaded in the Document Feeder.

  • Page 86: Document Separation Mechanism

    Theory of Operation Ver. 1.0 Apr. 2005 5. Operation 5.1.2 Document Separation Mechanism • Double feeding of paper is prevented using coefficient of friction between the Take-up Roller and Separator Pad. 1382M002AB Take-up Roller Separator Pad The coefficient of friction on the front side of the sheet of paper taken up When one sheet of paper is and fed through the space between the Take-up Roller and Separator taken up...

  • Page 87: Transport / Exit Section

    5. Operation Theory of Operation Ver. 1.0 Apr. 2005 Transport / Exit Section 5.2.1 Document Transport Mechanism • The original that has been taken up blocks the Paper Take-up Sensor. The Transport Roller turns to transport the original up to the document scanning position of the printer. •...

  • Page 88: Document Exit Mechanism

    Theory of Operation Ver. 1.0 Apr. 2005 5. Operation 5.2.2 Document Exit Mechanism • The Exit Roller turns to feed the original out of the Document Feeder. During this sequence, the original blocks the Leading Edge Detection Sensor and is fed onto the Document Exit Tray.

  • Page 89: Miscellaneous

    5. Operation Theory of Operation Ver. 1.0 Apr. 2005 Miscellaneous 5.3.1 Document Feeder Raised/Lowered Position Detection Mechanism • There is a magnet provided in the Document Feeder, allowing the printer to detect the position of the Document Feeder whether the Document Feeder is raised or lowered. •...
  • Page 90 SERVICE MANUAL THEORY OF OPERATION PF-501 2005.04 Ver. 1.0...
  • Page 92 After publication of this service manual, the parts and mechanism may be subject to change for improvement of their performance. Therefore, the descriptions given in this service manual may not coincide with the actual machine. When any change has been made to the descriptions in the service manual, a revised version will be issued with a revision mark added as required.
  • Page 94 Theory of Operation Ver. 1.0 Apr. 2005 CONTENTS Outline Product specification ....................1 Composition/Operation Operation ........................ 3 Paper Take-up Mechanism ................... 3 Paper Separating Mechanism ................4 Paper Empty Detection ..................4 Cassette Type Detection..................5...
  • Page 95 Theory of Operation Ver. 1.0 Apr. 2005 Blank page...

  • Page 96: Product Specification

    Theory of Operation Ver. 1.0 Apr. 2005 1. Product specification Outline Product specification Name 2nd Paper Feed Cassette Type of paper Plain and recycled paper: 60 to 90 g/m (16 to 24 lb) Media sizes A4 and Letter Paper capacity Maximum 500 sheets (80 g/m ) (21 lb) Registration...
  • Page 97 1. Product specification Theory of Operation Ver. 1.0 Apr. 2005 Blank page...

  • Page 98: Composition/Operation

    Theory of Operation Ver. 1.0 Apr. 2005 2. Operation Composition/Operation Operation Paper Take-up Mechanism • Because of no drive motor installed for the Paper Feed Cassette, drive from the Main Motor (M1) of the printer is transmitted to the cassette by way of a drive coupling gear for paper take-up and transport.

  • Page 99: Paper Separating Mechanism

    2. Operation Theory of Operation Ver. 1.0 Apr. 2005 Paper Separating Mechanism • A loop formed in the paper between the Separator Fingers and Paper Take-up Rollers. The turning force of the Paper Take-up Rollers overcomes the block of the Separator Fin- gers, causing the top of paper to ride over the fingers and be fed out of the tray into the copier.

  • Page 100: Cassette Type Detection

    Theory of Operation Ver. 1.0 Apr. 2005 2. Operation Cassette Type Detection • The Paper Feed Cassette is provided with the Cassette Type Detection Switch. • When the cassette is inserted into the printer, the switch pusher provided on the right- hand side of the cassette pushes the lever according to the paper size, turning ON the switch.
  • Page 101 2. Operation Theory of Operation Ver. 1.0 Apr. 2005 Blank page...
  • Page 102 SERVICE MANUAL THEORY OF OPERATION NC-501/SU-502 2005.04 Ver. 1.0...
  • Page 104 After publication of this service manual, the parts and mechanism may be subject to change for improvement of their performance. Therefore, the descriptions given in this service manual may not coincide with the actual machine. When any change has been made to the descriptions in the service manual, a revised version will be issued with a revision mark added as required.
  • Page 106 Theory of Operation Ver. 1.0 Apr. 2005 CONTENTS Outline Product specifications ..................... 1 Composition/Operation Data flow diagram ....................3 Data Flow Diagram for Network GDI Printing ............3 Data Flow Diagram for Network PCL Printing ............4 Data Flow Diagram for N-Scanner/I-Fax............... 5 Electrical components .....................
  • Page 107 Theory of Operation Ver. 1.0 Apr. 2005 Blank page...

  • Page 108: Product Specifications

    Theory of Operation Ver. 1.0 Apr. 2005 1. Product specifications Outline Product specifications Name Network Interface Card (NC-501) Interface Ethernet 10/100Base T /TX (RJ-45) TCP/IP Service ARP, BootP, DHCP, IPP, Ipr/lpd, Raw Socket, HTTPd1.1, SLP, AutoIP Netware Services Bindery, NDS, PServer mode, NPrinter mode, NDPS Frame Type (802.3, 802.2, 802.3 SNAP, Ethernet-ll, Auto Detect) Name Internet Fax &...
  • Page 109 1. Product specifications Theory of Operation Ver. 1.0 Apr. 2005 Blank page...

  • Page 110: Composition/Operation

    Theory of Operation Ver. 1.0 Apr. 2005 2. Data flow diagram Composition/Operation Data flow diagram Data Flow Diagram for Network GDI Printing Sensors Network Control Unit Board Panel Motor EEPROM Flash Flash MODEM (RISC) SRAM CCD Module CODEC SO-DIMM SDRAM Socket PWB-P Controller/Mechanical Control Board...

  • Page 111: Data Flow Diagram For Network Pcl Printing

    2. Data flow diagram Theory of Operation Ver. 1.0 Apr. 2005 Data Flow Diagram for Network PCL Printing Sensors Network Control Unit Board Panel Motor EEPROM Flash Flash MODEM (RISC) SRAM CCD Module CODEC SO-DIMM SDRAM Socket PWB-P Controller/Mechanical Control Board P1284 NIC-IF Plate NIC...

  • Page 112: Data Flow Diagram For N-Scanner/I-Fax

    Theory of Operation Ver. 1.0 Apr. 2005 2. Data flow diagram Data Flow Diagram for N-Scanner/I-Fax Sensors Network Control Unit Board Panel Motor EEPROM Flash Flash MODEM (RISC) SRAM CCD Module CODEC SO-DIMM SDRAM Socket PWB-P Controller/Mechanical Control Board P1284 NIC-IF Plate NIC PCL Controller Board...

  • Page 113: Electrical Components

    3. Electrical components Theory of Operation Ver. 1.0 Apr. 2005 Electrical components Network Interface Card P401 P402 CN403 4980G510AB Internet Fax & Network Scan Kit EEPROM FlashROM SDRAM SDRAM P401 Hookup Connector (to PCL Control Board) P402 Hookup Connector (to Plate NIC Board) CN403 Hookup Connector (to PWB-P)

  • Page 114: Plate Nic Board

    Theory of Operation Ver. 1.0 Apr. 2005 3. Electrical components Plate NIC Board Green LED P502 CN105 Orange LED 4980G511AA P502 Hookup Connector (to Network Interface Card) CN105 Network Interface Green LED Network Interface Card status display. Orange LED Network Interface Card status display. 3.2.1 LED Status Display List LEDs...
  • Page 115 3. Electrical components Theory of Operation Ver. 1.0 Apr. 2005 Blank page...
  • Page 116 © 2005 KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. © 2005 KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. Printed in Japan Printed in Japan Use of this manual should be strictly supervised to Use of this manual should be strictly supervised to DD4980CE1-1000 DD4980CE1-1000 avoid disclosure of confidential information.

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