Konica Minolta bizhub 169 Service Manual
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Konica Minolta bizhub 169 Service Manual

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SERVICE MANUAL

THEORY OF OPERATION
2007.04
Ver. 1.0

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Summary of Contents for Konica Minolta bizhub 169

  • Page 1: Service Manual

    SERVICE MANUAL THEORY OF OPERATION 2007.04 Ver. 1.0...

  • Page 2: Table Of Contents

    THEORY OF OPERATION TOTAL CONTENTS SAFETY AND IMPORTANT WARNING ITEMS ..............S-1 IMPORTANT NOTICE ....................S-1 DESCRIPTION ITEMS FOR DANGER, WARNING AND CAUTION ......S-1 SAFETY WARNINGS ....................S-2 WARNING INDICATIONS ON THE MACHINE ............S-18 MEASURES TO TAKE IN CASE OF AN ACCIDENT ............S-19 Composition of the service manual .................
  • Page 3 Composition/Operation ....................3...

  • Page 4: Safety And Important Warning Items

    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 5: Safety Warnings

    [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 6 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 7: Connection To Power Supply

    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 8 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 9 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 10 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 11 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 12 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 13: Handling Of Consumables

    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 14 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 15 SAFETY AND IMPORTANT WARNING ITEMS [4] 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 16: Internal Laser Radiation

    SAFETY AND IMPORTANT WARNING ITEMS [5] 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 17 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 18 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 5 mW aallonpituus 770-795 nm VARNING!

  • Page 19: Laser Safety Label

    SAFETY AND IMPORTANT WARNING ITEMS Laser Safety Label • A laser safety label is attached to the inside of the machine as shown below. A09AP0E505DA Laser Caution Label • A laser caution label is attached to the outside of the machine as shown below. A09AP0C503DA S-16...

  • Page 20: Precautions For Handling The Laser Equipment

    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 21: Warning Indications On The Machine

    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. High voltage High temperature High voltage...

  • Page 22: Measures To Take In Case Of An Accident

    MEASURES TO TAKE IN CASE OF AN ACCIDENT MEASURES TO TAKE IN CASE OF AN ACCIDENT 1. If an accident has occurred, the distributor who has been notified first must immediately take emergency measures to provide relief to affected persons and to prevent further damage.
  • Page 23 MEASURES TO TAKE IN CASE OF AN ACCIDENT Blank Page S-20...

  • Page 24: Composition Of The Service Manual

    Composition of the service manual This service manual consists of Theory of Operation section and Field Service section to explain the main machine and its corresponding options. Theory of Operation section gives, as information for the CE to get a full understanding of the product, a rough outline of the object and role of each function, the relationship between the electrical system and the mechanical system, and the timing of operation of each part.

  • Page 25: Notation Of The Service Manual

    Notation of the service manual A. Product name In this manual, each of the products is described as follows: (1) bizhub 163/211/220: Main body (2) Microsoft Windows 98: Windows 98 Microsoft Windows Me: Windows Me Microsoft Windows NT 4.0: Windows NT 4.0 or Windows NT Microsoft Windows 2000: Windows 2000 Microsoft Windows XP:...
  • Page 26 SERVICE MANUAL THEORY OF OPERATION 2007.04 Ver. 1.0...

  • Page 27: Revision History

    Revision history 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 28 Theory of Operation Ver. 1.0 Apr. 2007 CONTENTS bizhub 163/211/220 main body Outline System configuration....................1 Product specification ....................3 Fax kit (FK-506): (Option) ..................6 Cross sectional view....................7 Paper path....................... 8 Copy process ......................9 Composition/Operation Overall configuration ..................... 11 Timing Chart at Power ON..................
  • Page 29 Theory of Operation Ver. 1.0 Apr. 2007 12.1 Composition ....................... 29 12.2 Drive ........................29 12.3 Operation......................30 12.3.1 Developing Roller..................30 12.3.2 Developing Bias ..................30 12.3.3 TCR Sensor ....................31 12.3.4 TCR Sensor Automatic Adjustment ............31 Toner replenishing....................32 13.1 Composition .......................
  • Page 30 Theory of Operation Ver. 1.0 Apr. 2007 17.1 Composition......................48 17.2 Drive ........................48 17.3 Operation ......................49 17.3.1 Paper Detection Mechanism ............... 49 17.3.2 Manual Feed Take Up Control..............50 Registration roller section..................51 18.1 Composition......................51 18.2 Drive ........................51 18.3 Operation ......................
  • Page 31 Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...

  • Page 32: Outline

    Theory of Operation Ver. 1.0 Apr. 2007 1. System configuration Outline System configuration 1/2 System front view [12] [13] [14] [11] [10] A08EE501AA bizhub 163/211/220 *1 Paper feed unit (PF-502) Original cover (OC-504) *2 Desk (DK-703) Automatic document feeder (DF-502) [10] Desk (DK-702) Reverse automatic document feeder...
  • Page 33 1. System configuration Theory of Operation Ver. 1.0 Apr. 2007 2/2 System rear view A08EE502AA Expanded memory unit (EM-103) Image controller (IC-206) * Fax kit (FK-506) Network interface card (NC-503) * * It is not possible to mount these units at the same time.

  • Page 34: Product Specification

    Theory of Operation Ver. 1.0 Apr. 2007 2. Product specification Product specification A. Copier Type Console/desktop type Platen Stationary Original scanning system CCD line sensor Photoconductor Organic photoconductor Copying system Electrostatic dry powdered image transfer to plain paper with a laser Resolution 600 ×...
  • Page 35 2. Product specification Theory of Operation Ver. 1.0 Apr. 2007 Full size x 1.00 Fixed zoom ratios (Latin america area for Reduction x 0.250, x 0.500, x 0.700, x 0.780 metric) Enlargement x 1.150, x 1.410, x 2.000, x 4.000 ×0.250 to ×4.000 Variable zoom ratios in 0.001 increments...
  • Page 36 Theory of Operation Ver. 1.0 Apr. 2007 2. Product specification E. Machine specifications Voltage AC100 V, AC120V, AC220-240V Power requirements Frequency 50/60 Hz 1000 W ± 10% or less 100/110/120 area 1050 W ± 10% or less 127/230 area bizhub 163 940 W ±...

  • Page 37: Fax Kit (Fk-506): (Option)

    2. Product specification Theory of Operation Ver. 1.0 Apr. 2007 Fax kit (FK-506): (Option) Transmission mode Compatible wiring General subscriber telephone line, NCC each line Connection method Direct connection (using a modular jack) Transmission speed 33.6, 31.2, 28.8, 26.4, 24.0, 21.6, 19.2, 16.8, 14.4, 12.0, 9.6, 7.2, 4.8, 2.4 kbps (automatic switching) Transmission time 3 seconds *1...

  • Page 38: Cross Sectional View

    Theory of Operation Ver. 1.0 Apr. 2007 3. Cross sectional view Cross sectional view 4034G502BA Automatic document feeder DF-502 Paper feed unit PF-502 (Option) (Option) Scanner Copy table DK-703 (Option) Job separator JS-503 (Option) Paper feed tray/1 Fusing unit [10] PH unit Image transfer section [11]...

  • Page 39: Paper Path

    4. Paper path Theory of Operation Ver. 1.0 Apr. 2007 Paper path 4034G503BA...

  • Page 40: Copy Process

    Theory of Operation Ver. 1.0 Apr. 2007 5. Copy process Copy process [1] Photoelectric Conversion Paper Exit [14] IR Image Processing PH Image Fusing [13] Processing Cleaning [11] Main Erase PC Drum [12] Laser Exposure Drum Charging Paper Separation [10] Image Transfer Developing Paper Feed...
  • Page 41 5. Copy process Theory of Operation Ver. 1.0 Apr. 2007 • The PC Drum Paper Separator Fingers remove paper from the surface of the PC Drum. Paper Separation [10] The Charge Neutralizing Plate neutralizes any charge left on • the paper. •...

  • Page 42: Composition/Operation

    Theory of Operation Ver. 1.0 Apr. 2007 6. Overall configuration Composition/Operation Overall configuration Timing Chart at Power ON Fusing cooling fan motor (FM1) Power unit cooling fan motor (FM2) A08EE569AA...

  • Page 43: Control Block Diagram

    6. Overall configuration Theory of Operation Ver. 1.0 Apr. 2007 Control Block Diagram Operation Panel Document related MFP board (MFPB) option EM-103 FAXB NC-503 or IC-206 NCUB Paper Exit Source Option Printer control board High voltage unit (PRCB) Paper Source Option Process (Motor, Sensor, DC Power) Control System Line...

  • Page 44: Scanner (Ir)

    Theory of Operation Ver. 1.0 Apr. 2007 7. Scanner (IR) Scanner (IR) Composition A08EC579AA A08EC508AA Original size sensor 1 (PS101) Scanner motor (M5) Original cover sensor (PS8) CCD board (CCDB) Scanner home position sensor (PS100) Original cover set switch (S6) Scanner Assy Exposure Lamp...

  • Page 45: Drive

    7. Scanner (IR) Theory of Operation Ver. 1.0 Apr. 2007 Drive A08EC515AA...

  • Page 46: Operation

    Theory of Operation Ver. 1.0 Apr. 2007 7. Scanner (IR) Operation 7.3.1 Scanner Moving Mechanism/Control • The Scanner is moved by the Scanner Motor at a given speed. • The Scanner Home Position Sensor detects the Scanner at its home position. •...

  • Page 47: Original Size Detection

    7. Scanner (IR) Theory of Operation Ver. 1.0 Apr. 2007 <Making copiers using DF-502> A08EE578AA 1. When the original is loaded and the Start key pressed, the Scanner performs shad- ing. 2. The Scanner then moves to the scanning position under the ADF glass. The original is scanned as it is moved.

  • Page 48: Determination Of Original Size

    Theory of Operation Ver. 1.0 Apr. 2007 7. Scanner (IR) 7.3.3 Determination of Original Size • The Original Size Sensor is used to determine the size of the original. • Two size conversion patterns are available depending on the applicable marketing area. Refer to the Field Service (CCD APS SIZE) for setting.
  • Page 49 7. Scanner (IR) Theory of Operation Ver. 1.0 Apr. 2007 <For Metric, China and Latin America (Metric) areas> Pattern 1 Original Size ~153.0 ~187.0 ~200.0 ~215.0 ~225.0 ~262.0 ~275.0 275.1 Sensor PS101 *PS102 – A5 S B5 S 16K S A4 S –...
  • Page 50 Theory of Operation Ver. 1.0 Apr. 2007 7. Scanner (IR) (2) Size Detection (When FLS/LEGAL Change is selected) For Inch and Latin America (Inch) areas Pattern 1 Original Size ~144.7 ~220.9 ~221.0 Sensor PS101 *PS102 – Invoice S Letter S Letter –...

  • Page 51: For Metric, China And Latin America (Metric) Areas

    7. Scanner (IR) Theory of Operation Ver. 1.0 Apr. 2007 7.3.4 For Metric, China and Latin America (Metric) areas Pattern 1 Original Size ~153.0 ~187.0 ~200.0 ~215.0 ~225.0 ~262.0 ~275.0 275.1 Sensor PS101 *PS102 – A5 S B5 S 16K S A4 S –...

  • Page 52: Ph (Writing Section)

    Theory of Operation Ver. 1.0 Apr. 2007 8. PH (Writing section) PH (Writing section) Composition A08EC580AA A08EC508AA Polygon Motor fθ Lens LD Board SOS Sensor A08EC516AA...

  • Page 53: Drive

    8. PH (Writing section) Theory of Operation Ver. 1.0 Apr. 2007 Drive • When a laser beam strikes the Polygon Mirror, light reflected off the Polygon Mirror is directed at the PC Drum by way of the lens and return mirror. •...

  • Page 54: Imaging Unit

    Theory of Operation Ver. 1.0 Apr. 2007 9. Imaging unit Imaging unit Construction A08EC581AA A08EC509AA Cleaning Blade PC Drum Paper Separa- tor Fingers PC Drum PC Drum Charge Corona Developing Roller 3rd Toner Conveying Roller 1st Toner Conveying Roller A08EC517AA 2nd Toner Conveying Roller...

  • Page 55: Operation

    9. Imaging unit Theory of Operation Ver. 1.0 Apr. 2007 Operation • The Main Motor provides drive for the PC Drum, Developing Roller, and other mechani- cal components. Main motor (M1) Recycled Toner Conveying Screw Developing Roller Recycled Toner Recycling Coil 2nd Toner Conveying Roller A08EC562AA...

  • Page 56: Pc Drum

    Theory of Operation Ver. 1.0 Apr. 2007 10. PC Drum 10. PC Drum 10.1 Composition A08EC582AA A08EC509AA 10.2 Drive A08EC563AA...

  • Page 57: Operation

    10. PC Drum Theory of Operation Ver. 1.0 Apr. 2007 10.3 Operation • The PC Drum used in this copier is the organic photoconductor (OPC). • The drum is a lamination of the Charge Transport Layer and Charge Generating Layer coating an aluminum alloy base.

  • Page 58: Grounding Of The Pc Drum

    Theory of Operation Ver. 1.0 Apr. 2007 10. PC Drum 10.3.1 Grounding of the PC Drum • The ground contact (Ground Plate) of the PC Drum is located on the inside on its left- hand side. It remains in contact with the drum shaft at all times. When the Imaging Unit is loaded in the copier, the drum shaft comes into contact with the Ground Plate of the PC Drum.

  • Page 59: Pc Drum Charging

    11. PC Drum charging Theory of Operation Ver. 1.0 Apr. 2007 11. PC Drum charging 11.1 Composition A08EC583AA A08EC509AA 11.2 Operation • The surface of the PC Drum is deposited with charge through corona discharge from the PC Drum Charge Corona. •...

  • Page 60: Developing

    Theory of Operation Ver. 1.0 Apr. 2007 12. Developing 12. Developing 12.1 Composition A08EC584AA A08EC509AA 12.2 Drive A08EC518AA...

  • Page 61: Operation

    12. Developing Theory of Operation Ver. 1.0 Apr. 2007 12.3 Operation 12.3.1 Developing Roller • The Developing Roller consists of an outer sleeve roller and an inner magnet roller. • The roller conveys developer to the point of development. • The developer (carrier and toner) in the Developer Mixing Chamber is conveyed onto the point of development by the Toner Conveying Rollers and the Developing Roller.

  • Page 62: Tcr Sensor

    Theory of Operation Ver. 1.0 Apr. 2007 12. Developing 12.3.3 TCR Sensor • The TCR Sensor detects the toner-to-carrier ratio (T/C) of the developer in the Developer Mixing Chamber. 3rd Toner Conveying Roller 2nd Toner Conveying Roller Developing Roller TCR Sensor 1st Toner Conveying Roller A08EC521AA 12.3.4...

  • Page 63: Toner Replenishing

    13. Toner replenishing Theory of Operation Ver. 1.0 Apr. 2007 13. Toner replenishing 13.1 Composition A08EC585AA A08EC510AA 13.2 Drive A08EC564AA...

  • Page 64: Operation

    Theory of Operation Ver. 1.0 Apr. 2007 13. Toner replenishing 13.3 Operation 13.3.1 Toner Replenishing Mechanism • Toner is supplied from the Toner Bottle to the Developer Mixing Chamber. 1. The Toner Replenishing Motor (M2) turns the coupling, which turns the Toner Bot- tle.

  • Page 65: Toner Replenishing Control

    13. Toner replenishing Theory of Operation Ver. 1.0 Apr. 2007 13.4 Toner Replenishing Control • Replenishing of the supply of toner is determined based on the T/C ratio and B/W ratio. • If T/C is 14 % or more, toner replenishing is not carried out regardless of the B/W value. •...

  • Page 66: T/C Recovery Mode

    Theory of Operation Ver. 1.0 Apr. 2007 13. Toner replenishing 13.4.1 T/C Recovery Mode The machine enters the T/C recover mode when a T/C of 10 % or less is detected. Toner is replenished for 90 sec. T/C is recovered by 1 % or more. T/C is not recovered by 1 % or more, or T/C is less than 12 %.

  • Page 67: Toner Bottle Home Position Detection

    13. Toner replenishing Theory of Operation Ver. 1.0 Apr. 2007 13.4.2 Toner Bottle Home Position Detection • The toner supply port is on the upper side whenever the toner bottle is at its home posi- tion. The toner bottle home position sensor (PS6) detects the toner bottle at its home position.

  • Page 68: Image Transfer And Paper Separation Section

    Theory of Operation Ver. 1.0 Apr. 2007 14. Image transfer and paper separation section 14. Image transfer and paper separation section 14.1 Composition A08EC591AA A08EC511AA 14.2 Drive A08EC565AA...

  • Page 69: Operation

    14. Image transfer and paper separation section Theory of Operation Ver. 1.0 Apr. 2007 14.3 Operation 14.3.1 Image Transfer Section • A positive charge is applied to the Image Transfer Roller to transfer the toner image formed on the surface of the PC Drum onto the paper. •...

  • Page 70: Toner Recovery

    Theory of Operation Ver. 1.0 Apr. 2007 15. Toner recovery 15. Toner recovery 15.1 Composition A08EC585AA A08EC509AA 15.2 Drive A08EC567AA...

  • Page 71: Operation

    15. Toner recovery Theory of Operation Ver. 1.0 Apr. 2007 15.3 Operation • The Cleaning Blade is used to scrape residual toner off the surface of the PC Drum. • The spent toner is conveyed through the Recycling Duct and eventually back to the Developer Mixing Chamber.

  • Page 72: Paper Feed

    Theory of Operation Ver. 1.0 Apr. 2007 16. Paper feed 16. Paper feed 16.1 Composition A08EC587AA Paper empty sensor/1 (PS4) A08EC557AA Feed Roller/1 Paper size detect board (PSDTB) Paper size sensor (S5) Separation Roller/1 Paper Lifting Plate A08EC533AA...

  • Page 73: Drive

    16. Paper feed Theory of Operation Ver. 1.0 Apr. 2007 16.2 Drive • The Main Motor (M1) provides the drive for paper feed operations. • The drive is transmitted through the Paper feed solenoid/1. Main motor (M1) Paper feed solenoid/1 (SD1) Feed Roller A08EC534AA...

  • Page 74: Operation

    Theory of Operation Ver. 1.0 Apr. 2007 16. Paper feed 16.3 Operation 16.3.1 Paper Separating Mechanism • The coefficient of friction between the Feed Roller and Separation Roller is effectively used to prevent double feed of paper. When one sheet of paper is taken up: The coefficient of friction on the front side of the sheet of paper taken up and fed through the space between the Feed Roller and Separation Roller is the same as that on the back- side of the sheet of paper, allowing the paper to be properly fed into the machine.

  • Page 75: Paper Empty Detection Mechanism

    16. Paper feed Theory of Operation Ver. 1.0 Apr. 2007 16.3.3 Paper Empty Detection Mechanism • The Paper Empty Sensor detects a paper-empty condition in the drawer. Paper empty sensor/1 (PS4) A08EC537AA 16.3.4 Paper Lifting Plate • The Paper Lifting Plate is locked into position when it is pressed down. It is unlocked when the tray is slid into the unit.

  • Page 76: Universal Tray Paper Size Detection Mechanism

    Theory of Operation Ver. 1.0 Apr. 2007 16. Paper feed 16.3.5 Universal Tray Paper Size Detection Mechanism • Both the width (in the crosswise direction) and length (in the feeding direction) of the paper are detected and the copier CPU determines the paper size based on the combi- nation of the two readings.

  • Page 77: On/Off Positions Of Paper Size Detecting Switches And Corresponding Paper Size Detected

    16. Paper feed Theory of Operation Ver. 1.0 Apr. 2007 16.3.6 ON/OFF Positions of Paper Size Detecting Switches and Corresponding Paper Size Detected <For Metric> Paper Size Detect Board (PSDTB) Paper size sensor (S5) Paper Size – – – – –...

  • Page 78: Paper Feed Control

    Theory of Operation Ver. 1.0 Apr. 2007 16. Paper feed 16.3.7 Paper feed Control A08EE588AA 16.3.8 Paper feed Retry Control • To minimize the occurrence of a paper misfeed, the paper take-up sequence is tempo- rarily halted if the paper fails to reach the Synchronizing Roller Sensor within a given period of time after the sequence has been started.

  • Page 79: Manual Bypass Section

    17. Manual bypass section Theory of Operation Ver. 1.0 Apr. 2007 17. Manual bypass section 17.1 Composition A08EC590AA A08EC512AA 17.2 Drive Main motor (M1) Paper set sensor/bypass (PS2) Paper feed solenoid/bypass (SD2) A08EC566AA...

  • Page 80: Operation

    Theory of Operation Ver. 1.0 Apr. 2007 17. Manual bypass section 17.3 Operation • Drive for bypass paper feed is provided by the Main Motor (M1). • The drive is transmitted through the Paper feed solenoid/bypass. Main motor (M1) Paper set sensor/bypass (PS2) Paper feed solenoid/bypass (SD2) A08EC542AA 17.3.1...

  • Page 81: Manual Feed Take Up Control

    17. Manual bypass section Theory of Operation Ver. 1.0 Apr. 2007 17.3.2 Manual Feed Take Up Control A08EE573AA...

  • Page 82: Registration Roller Section

    Theory of Operation Ver. 1.0 Apr. 2007 18. Registration roller section 18. Registration roller section 18.1 Composition A08EC586AA A08EC558AA 18.2 Drive Registration roller clutch (CL1) Registration roller Registration sensor (PS1) Paper Dust Remover A08EC545AA...

  • Page 83: Operation

    18. Registration roller section Theory of Operation Ver. 1.0 Apr. 2007 18.3 Operation • The Synchronizing Roller ensures that the paper is fed off from the transport section in time with the exposure timing of the exposure section (PH). • Drive from the Main Motor (M1) is transmitted through a gear train to the Registration roller clutch (CL1).

  • Page 84: Fusing Unit Section

    Theory of Operation Ver. 1.0 Apr. 2007 19. Fusing unit section 19. Fusing unit section 19.1 Composition (for bizhub 163) • Heat and pressure from the Fusing Roller permanently fuse toner onto the paper. A08EC592AA A08EC559AA Heater Lamp Fusing Roller/rt Fusing Roller Thermistor (TH1) Pressure Lever...

  • Page 85: Composition (For Bizhub 211/220)

    19. Fusing unit section Theory of Operation Ver. 1.0 Apr. 2007 19.2 Composition (for bizhub 211/220) Sub Heater Lamp) Heater Lamp Fusing Roller/rt Fusing Roller Thermostat Pressure Lever A08EE571AA Thermistor (TH1) Thermistor (TH2)

  • Page 86: Drive

    Theory of Operation Ver. 1.0 Apr. 2007 19. Fusing unit section 19.3 Drive • The main motor (M1) provides the drive for the fusing unit. Main motor (M1) Fusing Roller/Rt Fusing roller A08EC549AA 19.4 Operation 19.4.1 Fusing Roller Pressure Mechanism •...

  • Page 87: Fusing Temperature Control (For Bizhub 163)

    19. Fusing unit section Theory of Operation Ver. 1.0 Apr. 2007 19.4.2 Fusing Temperature Control (for bizhub 163) • The Fusing Roller Heater Lamp is turned ON and OFF to keep a set temperature on the surface of the Fusing Roller. •...

  • Page 88: Fusing Temperature Control (For Bizhub 211/220)

    Theory of Operation Ver. 1.0 Apr. 2007 19. Fusing unit section 19.4.3 Fusing Temperature Control (for bizhub 211/220) • The Fusing Roller Heater Lamp is turned ON and OFF to keep a set temperature on the surface of the Fusing Roller. •...

  • Page 89: Ppm Control (Bizhub 163 Only)

    19. Fusing unit section Theory of Operation Ver. 1.0 Apr. 2007 19.4.4 PPM Control (bizhub 163 Only) • If paper of a small size (width of 250 mm or less) or thick paper is used to run a multi- copy cycle, the temperature on the edges of the Fusing Rollers tends to run high, mean- ing that the temperature of the Fusing Rollers varies among different spots of the rollers.

  • Page 90: Paper Exit (For Bizhub 163)

    Theory of Operation Ver. 1.0 Apr. 2007 20. Paper exit (for bizhub 163) 20. Paper exit (for bizhub 163) 20.1 Composition A08EC593AA A08EC560AA 20.2 Drive • The main motor (M1) provides the drive for the exit section. Exit Roller Main motor (M1) A08EC553AA...

  • Page 91: Paper Exit (For Bizhub 210/220)

    21. Paper exit (for bizhub 210/220) Theory of Operation Ver. 1.0 Apr. 2007 21. Paper exit (for bizhub 210/220) 21.1 Construction A08EC593AA A08EC560AA 21.2 Operation • The exit rollers are driven by the switchback motor (M3). Exit Roller Switchback motor (M3) A08EE575AA...

  • Page 92: Image Stabilization System

    Theory of Operation Ver. 1.0 Apr. 2007 22. Image stabilization system 22. Image stabilization system 22.1 Composition • The following image stabilization controls are provided to ensure stabilized copy image. Purpose Means Control The Vg/Vb control voltage is varied to bring Vg/Vb to an appropriate level according to the following settings.

  • Page 93: Others

    23. Others Theory of Operation Ver. 1.0 Apr. 2007 23. Others 23.1 Fan Control 23.1.1 Composition Power unit cooling fan motor (FM2) A08EC555AA Fusing cooling fan motor (FM1) Ozone Filter A08EC556AA...

  • Page 94: Operation

    Theory of Operation Ver. 1.0 Apr. 2007 23. Others 23.1.2 Operation A. Function Motor Name Control Conditions • A fan motor draws air from the area around the Fusing Unit to the out- side to prevent the machine interior temperature from running high. In addition, the fan motor pulls paper being transported up through suc- tion force to help stabilize paper transport.
  • Page 95 23. Others Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...
  • Page 96 SERVICE MANUAL THEORY OF OPERATION 2007.04 Ver. 1.0...
  • Page 97 Revision history 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 98: Df-605/Mk

    Theory of Operation Ver. 1.0 Apr. 2007 CONTENTS DF-605/MK-501 Outline Product specifications ..................... 1 Paper Feed Path ..................... 4 In 1-sided mode ....................4 In 2-sided mode ....................4 Composition/Operation Composition ......................5 Drive ........................6 Operation ........................ 7 Document pick-up mechanism ................7 5.1.1 Pick-up operation ..................
  • Page 99 Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...

  • Page 100: Outline

    Theory of Operation Ver. 1.0 Apr. 2007 1. Product specifications Outline Product specifications A. Type Name Reverse automatic document feeder Paper feed Paper feed from top of stack Type Turnover Switch back system Paper exit Straight exit system Installation Screw cramp to the main unit Document alignment Center Document loading...
  • Page 101 1. Product specifications Theory of Operation Ver. 1.0 Apr. 2007 D. Paper feed prohibited originals • If fed, trouble occurrence will be highly possible. Type of original Possible trouble Feed failure, damage to the original, or drive Original that is stapled or clipped. failure due to clip clogging Feed failure, damage to the original, or drive Book original...
  • Page 102 Theory of Operation Ver. 1.0 Apr. 2007 1. Product specifications F. Mixed original feed chart For Metric Max. original size 297 mm 257 mm 210 mm 182 mm 148 mm Mixed original size 297 mm 257 mm 210 mm 182 mm 148 mm 128 mm For Inch...

  • Page 103: Paper Feed Path

    2. Paper Feed Path Theory of Operation Ver. 1.0 Apr. 2007 Paper Feed Path In 1-sided mode 3: Exit 2: Transport and turnover 1: Feed (scanning the 1st side) 4344T1C501AA In 2-sided mode 2: Transport and switchback 6: Exit 4: Transport and switchback 1: Feed (scanning the 1st side) 3: Transport and turnover (scanning the 2nd side) 5: Transport...

  • Page 104: Composition/Operation

    Theory of Operation Ver. 1.0 Apr. 2007 3. Composition Composition/Operation Composition Document feed section Conveyance section Switchback section Document exit section 4344T2C501AA...

  • Page 105: Drive

    4. Drive Theory of Operation Ver. 1.0 Apr. 2007 Drive Paper feed motor (M1-ADF) 4344T2C502AA Transport motor (M2-ADF)

  • Page 106: Operation

    Theory of Operation Ver. 1.0 Apr. 2007 5. Operation Operation Document pick-up mechanism • The Document Pick-Up Section consists of the Pick-Up Rollers, Feed Roller and Separa- tion Roller, and this section is driven by the Paper Feed Motor. 5.1.1 Pick-up operation •...

  • Page 107: Document Feed/Transport Mechanism

    5. Operation Theory of Operation Ver. 1.0 Apr. 2007 Document feed/transport mechanism • When the document reaches the Registration Sensor, the Feed Roller starts turning for- ward and, at the same time that the Pickup Roller goes up, drive is then supplied to the Registration Roller.
  • Page 108 Theory of Operation Ver. 1.0 Apr. 2007 5. Operation A. Operation flow in the 1-sided mode Original Detection Sensor Exit Scanning the 1st side Exit/Turnover Sensor 4344T2C506AA 1. When the Start key is pressed, the Paper Feed Motor starts turning backward, causing the Pick-Up Roller to lower and start a paper take-up sequence.
  • Page 109 5. Operation Theory of Operation Ver. 1.0 Apr. 2007 B. Operation flow in the 2-sided mode 1. When the Start key is pressed, the Paper Feed Motor starts turning backward, causing the Pick-Up Roller to lower and start feeding the 1st page of the document. The scanning of the 1st side is started after the lapse of a given period of time after the Original Detection Sensor has been activated by the leading edge of the 1st page.
  • Page 110 Theory of Operation Ver. 1.0 Apr. 2007 5. Operation 4. To ensure that pages of the document are in the proper order, the page is turned over again before being ejected into the Exit Tray. Turnover Exit Scanning the 2nd side 4344T2C505AA...

  • Page 111: Raised/Lowered Position Detecting Mechanism

    5. Operation Theory of Operation Ver. 1.0 Apr. 2007 Raised/lowered position detecting mechanism 5.3.1 Document size detection • The 15 degree Open Detection Mechanism enables the main unit to detect the document size when the DF is used as the Original Cover of the main unit, there is the Lever Actu- ator provided in the DF body that blocks or unblocks a sensor to initiate a reconfirmation of the original size as read by the original size detection sensors.
  • Page 112 SERVICE MANUAL THEORY OF OPERATION 2007.04 Ver. 1.0...
  • Page 113 Revision history 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 114 Theory of Operation Ver. 1.0 Apr. 2007 CONTENTS DF-502 Outline Product specification ....................1 Composition/Operation Automatic Document Feeder (DF-502) ..............3 Composition......................3 Drive ........................4 Operation ......................5 2.3.1 Document Pick-Up and Feed ................ 5 2.3.2 Document Transport..................6 2.3.3 Document Separating Mechanism ..............
  • Page 115 Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...

  • Page 116: Outline

    Theory of Operation Ver. 1.0 Apr. 2007 1. Product specification Outline Product specification A. Type Name Automatic document feeder Installation Inserted in top portion of the copier Modes Standard = 1-sided original Mixed original = 1-sided original Document loading Left-hand side, face up B.
  • Page 117 1. Product specification Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...

  • Page 118: Composition/Operation

    Theory of Operation Ver. 1.0 Apr. 2007 2. Automatic Document Feeder (DF-502) Composition/Operation Automatic Document Feeder (DF-502) Composition 4688C512AA 4688C502AA Main Motor Feed Clutch Pick-Up Roller Exit Rollers Feed Roller Registration Rollers 4688C501AA...

  • Page 119: Drive

    2. Automatic Document Feeder (DF-502) Theory of Operation Ver. 1.0 Apr. 2007 Drive 4688C503AA...

  • Page 120: Operation

    Theory of Operation Ver. 1.0 Apr. 2007 2. Automatic Document Feeder (DF-502) Operation 2.3.1 Document Pick-Up and Feed • The document is taken up as the Pick-Up Roller and Feed Roller turn. • The Pick-Up Roller transports the document up to the Feed Roller. •...

  • Page 121: Document Transport

    2. Automatic Document Feeder (DF-502) Theory of Operation Ver. 1.0 Apr. 2007 2.3.2 Document Transport • The document taken up is transported to the document scanning position of the copier by the Registration Rollers. • The Registration Rollers are turned by a gear train and belts which are driven by the Main Motor.

  • Page 122: Document Separating Mechanism

    Theory of Operation Ver. 1.0 Apr. 2007 2. Automatic Document Feeder (DF-502) 2.3.3 Document Separating Mechanism • The coefficient of friction between the Feed Roller and Separation Roller is effectively used to prevent double feed of paper. Since the friction coefficient on the top side of the paper is equal to that When one sheet of paper is on the underside of the paper, the Separation Roller is turned by the taken up...

  • Page 123: Document Exit Mechanism

    2. Automatic Document Feeder (DF-502) Theory of Operation Ver. 1.0 Apr. 2007 2.3.4 Document Exit Mechanism • The document is fed out of the ADF by the Exit Roller. • The Exit Roller is driven by gears and a belt which are driven by the Main Motor. Main motor (M1) Exit Rollers 4688C508AA...

  • Page 124: Document Size Detection Mechanism

    Theory of Operation Ver. 1.0 Apr. 2007 2. Automatic Document Feeder (DF-502) 2.3.5 Document Size Detection Mechanism • The document size is determined by means of two different systems of document width detection and document length detection. A. Document Width Detection •...
  • Page 125 2. Automatic Document Feeder (DF-502) Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...
  • Page 126 SERVICE MANUAL THEORY OF OPERATION 2007.04 Ver. 1.0...
  • Page 127 Revision history 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 128 Theory of Operation Ver. 1.0 Apr. 2007 CONTENTS AD-504 Outline Product specifications ..................... 1 Composition/Operation Duplex Unit (AD-504) ....................3 Composition......................3 Drive ........................4 Operation ......................4 2.3.1 Switchback Operation ................... 4 2.3.2 2-sided Copying with a Single Sheet of Paper Resident in the Unit....5 2.3.3 2-sided Copying with Two Sheets of Paper Resident in the Unit ....
  • Page 129 Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...

  • Page 130: Outline

    Theory of Operation Ver. 1.0 Apr. 2007 1. Product specifications Outline Product specifications A. Type Name Automatic duplex unit Type Sheet duplex paper take-up section Installation Installed to the right side door Power requirements DC24 V (supplied from the copier) DC5 V B.
  • Page 131 1. Product specifications Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...

  • Page 132: Composition/Operation

    Theory of Operation Ver. 1.0 Apr. 2007 2. Duplex Unit (AD-504) Composition/Operation Duplex Unit (AD-504) Composition 4532C516AA 4532C515AA Transport motor (M1) AD drive board (ADDB) Transport sensor (PS2) 4532C503AA...

  • Page 133: Drive

    2. Duplex Unit (AD-504) Theory of Operation Ver. 1.0 Apr. 2007 Drive • The Duplex Unit Transport Motor provides the drive for the Duplex Unit. Transport Roller 1 Transport Roll 1 Transport Roller 2 Transport Roll 2 4532C502AA Operation 2.3.1 Switchback Operation •...

  • Page 134: 2-Sided Copying With A Single Sheet Of Paper Resident In The Unit

    Theory of Operation Ver. 1.0 Apr. 2007 2. Duplex Unit (AD-504) 2.3.2 2-sided Copying with a Single Sheet of Paper Resident in the Unit A. Operation 1. The first sheet of paper is taken up and the image of page 2 of the origi- nal is printed.

  • Page 135: 2-Sided Copying With Two Sheets Of Paper Resident In The Unit

    2. Duplex Unit (AD-504) Theory of Operation Ver. 1.0 Apr. 2007 2.3.3 2-sided Copying with Two Sheets of Paper Resident in the Unit A. Operation 1. The first sheet of paper is taken up and the image of page 2 of the origi- nal is printed.
  • Page 136 Theory of Operation Ver. 1.0 Apr. 2007 2. Duplex Unit (AD-504) 10. While the second sheet of paper is being fed out of the copier, the third sheet of paper is taken up and the image of page 6 of the original is printed.
  • Page 137 2. Duplex Unit (AD-504) Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...
  • Page 138 SERVICE MANUAL THEORY OF OPERATION 2007.04 Ver. 1.0...
  • Page 139 Revision history 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 140 Theory of Operation Ver. 1.0 Apr. 2007 CONTENTS PF-502 Outline Product specification ....................1 Composition/Operation Paper Feed Unit (PF-502) ..................3 Composition......................3 Drive ........................4 Operation ......................5 2.3.1 Edge Guide and Trailing Edge Stop .............. 5 2.3.2 Paper Lifting Plate..................5 2.3.3 Tray-in-Position Detection ................
  • Page 141 Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...

  • Page 142: Outline

    Theory of Operation Ver. 1.0 Apr. 2007 1. Product specification Outline Product specification A. Type Name Add-on paper feed unit Installation Installed on the underside of the copier B. Paper Plain paper (60 to 90 g/m Type 250 sheets Recycled paper (60 to 90 g/m Metric areas: A3, A4S, A4, A5, B4, B5S, and B5 Inch areas: Ledger (11 x 17), 11 x 14, Legal (8-1/2 x 14), LetterS (8-1/2 x 11S), Sizes...
  • Page 143 1. Product specification Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...

  • Page 144: Composition/Operation

    Theory of Operation Ver. 1.0 Apr. 2007 2. Paper Feed Unit (PF-502) Composition/Operation Paper Feed Unit (PF-502) Composition 4686C512AA 4686C502AA Trailing Edge Stop Side Door Paper Lifting Plate Edge Guide 4686C501AA...

  • Page 145: Drive

    2. Paper Feed Unit (PF-502) Theory of Operation Ver. 1.0 Apr. 2007 Drive • Drive from the Main Motor (M1) is transmitted via a gear train to the paper feed mecha- nism for the Paper Feed Unit. Vertical Transport Roller Paper Feed Drive Mechanism Feed Roller...

  • Page 146: Operation

    Theory of Operation Ver. 1.0 Apr. 2007 2. Paper Feed Unit (PF-502) Operation 2.3.1 Edge Guide and Trailing Edge Stop • The Edge Guide and Trailing Edge Stop can be slid into any desired position. Trailing Edge Stop Edge Guide 4686C504AA 2.3.2 Paper Lifting Plate...

  • Page 147: Tray-In-Position Detection

    2. Paper Feed Unit (PF-502) Theory of Operation Ver. 1.0 Apr. 2007 2.3.3 Tray-in-Position Detection • When a tray is slid into the cabinet, the Tray Set Sensor is blocked and the copier deter- mines that the tray has been slid in position. Light Blocking Plate Tray set sensor (PS3) 4686C506AA...

  • Page 148: Paper Size Detecting Mechanism

    Theory of Operation Ver. 1.0 Apr. 2007 2. Paper Feed Unit (PF-502) 2.3.5 Paper Size Detecting Mechanism • Both the width (in the crosswise direction) and length (in the feeding direction) of the paper are detected and the copier CPU determines the paper size based on the combi- nation of the two readings.

  • Page 149: Paper Separating Mechanism

    2. Paper Feed Unit (PF-502) Theory of Operation Ver. 1.0 Apr. 2007 2.3.6 Paper Separating Mechanism • A loop is formed in the paper between the Separator Fingers and the Feed Roller. The turning force of the Feed Roller overcomes the block of the Separator Fingers, causing the top sheet of paper to ride over the fingers and be fed out of the tray into the copier.

  • Page 150: Paper Feed Retry Control

    Theory of Operation Ver. 1.0 Apr. 2007 2. Paper Feed Unit (PF-502) 2.3.8 Paper Feed Retry Control • To minimize the occurrence of paper misfeed, the Paper feed solenoid is energized a second time to carry out a paper feed retry sequence if a sheet of paper fails to reach the Registration sensor (for the 2nd Tray) or the Paper feed sensor (for the 3rd to 5th Tray) within a given period of time after a paper feed sequence has been initiated.
  • Page 151 2. Paper Feed Unit (PF-502) Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...
  • Page 152 SERVICE MANUAL THEORY OF OPERATION 2007.04 Ver. 1.0...
  • Page 153 Revision history 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 154 Theory of Operation Ver. 1.0 Apr. 2007 CONTENTS MB-501 Outline Product specification ....................1 Composition/Operation Multiple Bypass (MB-501) ..................3 Composition......................3 Drive ........................4 Operation ......................5 2.3.1 Paper Feed Mechanism ................5 2.3.2 Paper Empty Detection Mechanism.............. 6 2.3.3 Paper Feed Control ..................
  • Page 155 Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...

  • Page 156: Outline

    Theory of Operation Ver. 1.0 Apr. 2007 1. Product specification Outline Product specification A. Type Name Multiple bypass tray Installation Screwed to the copier B. Paper Plain paper (60 to 90 g/m 100 sheets OHP film Thick paper (91 to 157 g/m 20 sheets Type Postcards and labels...

  • Page 157: Product Specification

    1. Product specification Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...

  • Page 158: Composition/Operation

    Theory of Operation Ver. 1.0 Apr. 2007 2. Multiple Bypass (MB-501) Composition/Operation Multiple Bypass (MB-501) Composition 4687C509AA 4687C502AA Feed Roller Paper feed solenoid (SD1) Paper empty sensor (PS1) 4687C501AA...

  • Page 159: Drive

    2. Multiple Bypass (MB-501) Theory of Operation Ver. 1.0 Apr. 2007 Drive • Drive for bypass paper feed is provided by the Main Motor (M1). • The drive is transmitted through the Paper feed Solenoid. Main motor (M1) Feed Roller Paper feed solenoid (SD1) Paper empty sensor (PS1)

  • Page 160: Operation

    Theory of Operation Ver. 1.0 Apr. 2007 2. Multiple Bypass (MB-501) Operation 2.3.1 Paper Feed Mechanism • The Paper Lifting Plate is raised to press the paper stack on the tray up against the Feed Roller. • The Paper Lifting Plate is raised and lowered in time with a paper feed sequence. •...

  • Page 161: Paper Empty Detection Mechanism

    2. Multiple Bypass (MB-501) Theory of Operation Ver. 1.0 Apr. 2007 2.3.2 Paper Empty Detection Mechanism • The Paper Empty Sensor detects a sheet of paper on the Multiple Bypass. <When Paper is Present> <When Paper is not Present> Paper feed solenoid (SD1) Paper 4687C506AA 2.3.3...

  • Page 162: Paper Feed Retry Control

    Theory of Operation Ver. 1.0 Apr. 2007 2. Multiple Bypass (MB-501) 2.3.4 Paper Feed Retry Control • To minimize the occurrence of a paper misfeed, the paper feed sequence is temporarily halted if the paper fails to reach the Registration Roller Sensor within a given period of time after the sequence has been started.
  • Page 163 2. Multiple Bypass (MB-501) Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...
  • Page 164 SERVICE MANUAL THEORY OF OPERATION 2007.04 Ver. 1.0...
  • Page 165 Revision history 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 166 Theory of Operation Ver. 1.0 Apr. 2007 CONTENTS JS-503 Outline Product specification ....................1 Composition/Operation Job Separator (JS-503) ................... 3 Construction ......................3 Operation ......................4 2.2.1 Tray Selecting Mechanism ................5 2.2.2 Tray-Full Detecting Mechanism..............6 2.2.3 Job Tray Paper Detecting Mechanism............6...
  • Page 167 Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...

  • Page 168: Outline

    Theory of Operation Ver. 1.0 Apr. 2007 1. Product specification Outline Product specification A. Type Type Add-on drawer Installation Built into the exit section of the copier Paper storage system Moving drawer system B. Paper Upper drawer Lower drawer 100 sheets (A4S), 150 sheets (A4S), Plain paper (60 to 90 g/m 50 sheets (other than A4S)
  • Page 169 1. Product specification Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...

  • Page 170: Composition/Operation

    Theory of Operation Ver. 1.0 Apr. 2007 2. Job Separator (JS-503) Composition/Operation Job Separator (JS-503) Construction 4689C507AA 4689C501AA Paper empty sensor (PS4) Paper full sensor (PS3) JS drive board (JSDB) Job Tray Paper detecting board (PSDB) Bin switching motor (M1) Lower home position sensor (PS2) 4688C510AA...

  • Page 171: Operation

    2. Job Separator (JS-503) Theory of Operation Ver. 1.0 Apr. 2007 Operation • The Main Motor (M1) provides drive for the Job Separator. Paper detecting board (M1) Job Tray 4689C502AA...

  • Page 172: Tray Selecting Mechanism

    Theory of Operation Ver. 1.0 Apr. 2007 2. Job Separator (JS-503) 2.2.1 Tray Selecting Mechanism • The paper is fed out into either the Exit Tray of the copier or the Job Tray. The active tray is selected according to the operating mode (either the fax, copier, or printer mode). •...

  • Page 173: Tray-Full Detecting Mechanism

    2. Job Separator (JS-503) Theory of Operation Ver. 1.0 Apr. 2007 2.2.2 Tray-Full Detecting Mechanism • Tray-full detection is valid only when paper is fed into the Job Tray (Job Tray in the low- ered position). • A tray-full condition is detected when the sensor is blocked for a continuous given period of time (approx.
  • Page 174 SERVICE MANUAL THEORY OF OPERATION 2007.04 Ver. 1.0...
  • Page 175 Revision history 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 176 Theory of Operation Ver. 1.0 Apr. 2007 CONTENTS SF-501 Outline Product specifications ..................... 1 Composition/Operation SHIFTING UNIT (SF-501) ..................3 Composition......................3 Operation ......................4 2.2.1 Exit Position Shifting Mechanism ..............4...
  • Page 177 Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...

  • Page 178: Outline

    Theory of Operation Ver. 1.0 Apr. 2007 1. Product specifications Outline Product specifications A. Machine specifications Shifting amount 28 mm Paper capacity 250 sheets Power consumption Less than 63 W B. Operating environment • Conforms to the operating environment of the main body. NOTE •...
  • Page 179 1. Product specifications Theory of Operation Ver. 1.0 Apr. 2007 Blank Page...

  • Page 180: Composition/Operation

    Theory of Operation Ver. 1.0 Apr. 2007 2. SHIFTING UNIT (SF-501) Composition/Operation SHIFTING UNIT (SF-501) Composition 4690C505AA 4690C502AA SF drive board (SFDB) Home sensor (PS1) Shift motor (M1) 4690C501AA...

  • Page 181: Operation

    2. SHIFTING UNIT (SF-501) Theory of Operation Ver. 1.0 Apr. 2007 Operation 2.2.1 Exit Position Shifting Mechanism • Paper is fed into the Shifting Unit along a straight path or shifted from the reference straight path position. This exit position shifting mechanism allows different finishing functions offered by the machine (Non-Sort, Sort, and Group) to be effected.
  • Page 182 © 2007 KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. Printed in Japan Use of this manual should be strictly supervised to DDA09A-M-TE1 avoid disclosure of confidential information.

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