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Содержание BIZHUB 162

Страница 1: ...SERVICE MANUAL 2005 04 2005 04 Ver 1 0 Ver 1 0 THEORY OF OPERATION...

Страница 2: ...se of technical training and even after that for performing maintenance and control of the product properly Keep this Service Manual also for future service In this Service Manual each of three expres...

Страница 3: ...rformance and safety Such modifications are therefore strictly prohibited the points listed below are not exhaustive but they illustrate the reason ing behind this policy SAFETY WARNINGS Prohibited Ac...

Страница 4: ...able having enough cur rent capacity and the cord set meets regulatory requirements for the area Use of inadequate cord set leads to fire or electric shock Attach power plug which meets the following...

Страница 5: ...r leads to the product connecting to inadequate power supply voltage current capacity grounding and may result in fire or electric shock If proper wall outlet is not available advice the customer to c...

Страница 6: ...a risk of fire Check whether the power cord is damaged Check whether the sheath is damaged If the power plug cord or sheath is damaged replace with a new power cord with plug and connector on each en...

Страница 7: ...ot use an extension cable reel with the cable taken up Fire may result Prohibited Installation Places WARNING Do not place the product near flammable materials or vola tile materials that may catch fi...

Страница 8: ...on before Servicing CAUTION Before conducting an inspection read all relevant docu mentation service manual technical notices etc and proceed with the inspection following the prescribed pro cedure us...

Страница 9: ...risk of elec tric shock exists Safety Checkpoints WARNING Check the exterior and frame for edges burrs and other damage The user or CE may be injured Do not allow any metal parts such as clips staples...

Страница 10: ...g a lithium battery replace it with a new lith ium battery specified in the Parts Guide Manual Dispose of the used lithium battery using the method specified by local authority Improper replacement ca...

Страница 11: ...breathe excessive amounts or let the substances come into contact with eyes etc It may be stimulative If the substances get in the eye rinse with plenty of water immediately When symptoms are noticeab...

Страница 12: ...aner at a time and take care not to spill any liquid If this happens immediately wipe it off A risk of fire exists When using any solvent ventilate the room well Breathing large quantities of organic...

Страница 13: ...This product employs a Class 3b laser diode that emits an invisible laser beam The laser diode and the scanning polygon mirror are incorporated in the print head unit The print head unit is NOT A FIE...

Страница 14: ...and must be attached to laser products marketed in the United States All Areas Denmark CAUTION Use of controls adjustments or performance of procedures other than those specified in this manual may re...

Страница 15: ...an anv ndaren uts ttas f r osynlig laserstr lning som verskrider gr nsen f r laserklass 1 halvledarlaser Den maximala effekten f r laserdioden 5 mW v gl ngden 770 795 nm VARO Avattaessa ja suojalukitu...

Страница 16: ...MS S 15 4 2 Laser Safety Label A laser safety label is attached to the inside of the machine as shown below 4 3 Laser Caution Label A laser caution label is attached to the outside of the machine as s...

Страница 17: ...t care when handling tools on the user s premises The Print Head is not to be disassembled or adjusted in the field Replace the Unit or Assembly including the Control Board Therefore remove the Laser...

Страница 18: ...taken to avoid burns and electric shock CAUTION WARNING INDICATIONS ON THE MACHINE High voltage High temperature High voltage 4034P0J501DA You may be burned or injured if you touch any area that you...

Страница 19: ...SAFETY AND IMPORTANT WARNING ITEMS S 18...

Страница 20: ...SERVICE MANUAL 2005 04 Ver 1 0 Main Unit THEORY OF OPERATION...

Страница 21: ......

Страница 22: ...ts the number of times the revision has been made To indicate clearly a section revised show in the lower outside section of the correspond ing page A number within represents the number of times the...

Страница 23: ......

Страница 24: ...aper Separating Process Step 5 13 5 8 Fusing Process Step 6 14 5 9 PC Drum Cleaning Process Step 7 14 5 10 Charge Neutralizing Process Step 8 15 5 11 Image Transfer Roller Cleaning Process Step 9 15 5...

Страница 25: ...rol 35 12 3 T C Recovery Mode 36 12 4 Toner Bottle Home Position Detection 37 13 Toner recovery 38 14 Synchronizing roller section 39 14 1 Construction 39 14 2 Operation 40 14 3 Paper Dust Remover 40...

Страница 26: ...10 52 18 3 Operation 53 18 4 Fusing Roller Pressure Mechanism 53 18 5 Fusing Temperature Control for bizhub 162 54 18 6 Fusing Temperature Control for bizhub 210 55 18 7 PPM Control bizhub 162 Only 56...

Страница 27: ...bizhub 162 bizhub 210 Outline Composition Operation Theory of Operation Ver 1 0 Apr 2005 iv Blank page...

Страница 28: ...DK 703 3 2 Duplexing Document Feeder DF 605 11 Key Counter Kit 3 Original Cover Kit OC 504 1 12 32MB Memory EM 101 4 Job Separator JS 503 13 64MB Memory EM 102 5 Duplex Unit AD 504 14 Printer Controll...

Страница 29: ...2 9 Key Counter Kit 2 Original Cover Kit OC 504 1 10 32MB Memory EM 101 3 Job Separator JS 503 11 64MB Memory EM 102 4 Multiple Bypass MB 501 12 Printer Controller IC 205 5 Paper Feed Unit PF 502 2 13...

Страница 30: ...Developing System HMT System Charging System Comb Electrode 1 DC Negative Corona with Scorotron System Image Transfer System Roller Image Transfer Paper Separating System Paper Separator Fingers and C...

Страница 31: ...4 14 12 Fixed Full Size 1 00 Reduction 0 81 0 70 0 50 0 25 Enlargement 1 15 1 41 2 00 4 00 Variable 0 25 to 4 00 in 0 01 increments Lens Through Lens Exposure Lamp Rare Gas Fluorescent Lamp Max Curren...

Страница 32: ...Height 487 mm Copier Only Copier Mass 38 kg Printing Speed bizhub 210 21 printed pages min A4 300 dpi 12 printed pages min A4 600 dpi bizhub 162 16 printed pages min A4 300 dpi 12 printed pages min A...

Страница 33: ...FINE Max 297 mm width 1 000 mm Super Fine Max 297 mm width 900 mm Internet fax Enable when the optional Internet Fax Network Scan Kit SU 502 and Network Interface Card NC 502 are installed One touch d...

Страница 34: ...1 Automatic Document Feeder DF 502 Option 7 Paper Feed Unit PF 502 Option 2 Scanner 8 Copy Table DK 703 Option 3 Job Separator JS 503 Option 9 Paper Feed Tray 1 4 Fusing Unit 10 PH Unit 5 Image Trans...

Страница 35: ...4 Paper path Theory of Operation Ver 1 0 Apr 2005 8 bizhub 162 bizhub 210 Outline 4 Paper path 4034G503BA...

Страница 36: ...tput to the PH image processing section 5 PH Image Processing After going through corrections the digital image signal is converted to a corresponding electric signal D A conversion with which the las...

Страница 37: ...n the surface of the PC Drum is scraped off The toner is then recycled back to the Developing Unit 13 Main Erase The surface of the PC Drum is irradiated with light and any surface potential remaining...

Страница 38: ...latent image on the surface of the PC Drum Step 3 Developing Changes the electrostatic latent image to a visible developed image Step 4 Image transfer Transfers the toner image on surface of the PC D...

Страница 39: ...PC Drum is irradiated with light reflected off the original which forms an electrostatic latent image 5 5 Developing Process Step 3 Toner is attracted onto the electrostatic latent image produced thro...

Страница 40: ...the paper thereby trans ferring toner on the surface of the PC Drum to the paper 5 7 Paper Separating Process Step 5 Employed is the paper separating system using curvature separation and mechanical...

Страница 41: ...he Fusing Roller The sub heater or the Fusing Roller Sub Heater Lamp on the other hand heats both end portions of the Fusing Roller The Fusing Roller Thermistor located at the cen tral portion control...

Страница 42: ...remaining on the surface of the PC Drum is neutralized by the Erase Lamp 5 11 Image Transfer Roller Cleaning Process Step 9 A charge of the same polarity as that of toner negative is applied to clean...

Страница 43: ...5 12 Toner Recovery Process Step 10 Toner scraped off by the Cleaning Blade is transported back to the Developing Unit by the Toner Recycling Coil 4021M038AB 4021M039AA Cleaning Blade Recycling Duct...

Страница 44: ...Theory of Operation Ver 1 0 Apr 2005 6 Overall configuration 17 bizhub 162 bizhub 210 Composition Operation Composition Operation 6 Overall configuration 6 1 Timing Chart at Power ON 4034M537CA...

Страница 45: ...6 Overall configuration Theory of Operation Ver 1 0 Apr 2005 18 bizhub 162 bizhub 210 Composition Operation 6 2 Control Block Diagram 4034M538CA...

Страница 46: ...o combination with the Original Cover Sensor 4 Scanner Assy Driven by the Scanner Motor to let light from the Exposure Lamp hit against the original 5 Exposure Lamp Irradiates the original with light...

Страница 47: ...sed to an angle of 15 or more the Scanner moves to the original size detection position 2 When the Original Cover or ADF is raised to an angle of less than 15 with an orig inal placed on the Original...

Страница 48: ...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 3 After the orig...

Страница 49: ...on Ver 1 0 Apr 2005 22 bizhub 162 bizhub 210 Composition Operation 7 3 Original Size Detection Original Size Sensor 1 and the CCD mounted in the optical section are used to detect the size of the orig...

Страница 50: ...and China area Pattern 1 Original Size Sensor 144 7 mm 220 9 mm 221 0 mm UN2 UN3 OFF Invoice R Letter R Letter ON Legal Legal 11 17 Original Size Sensor 143 9 mm 153 0 mm 187 0 mm 213 0 mm 220 9 mm 2...

Страница 51: ...N OFF FLS FLS FLS FLS FLS FLS FLS B4 8K 11 17 A3 OFF ON Legal Legal Legal Legal Legal Legal B4 B4 8K 11 17 A3 ON ON Legal Legal Legal Legal Legal Legal B4 B4 8K 11 17 A3 Original Size Sensor 144 7 mm...

Страница 52: ...25 0 mm 262 0 mm 275 0 mm 275 1 mm UN2 UN3 OFF A5 R B5 R 16K R A4 R B5 B5 16K A4 ON FLS FLS FLS FLS FLS B4 8K A3 Original Size Sensor 143 9 mm 153 0 mm 213 0 mm 220 9 mm 225 0 mm 262 0 mm 284 4 mm 284...

Страница 53: ...Construction No Name Function System 1 Polygon Motor M1 Allows the surface of the PC Drum to be irradiated with a laser beam so that an image is formed 2 f Lens Keeps constant the polarization angular...

Страница 54: ...ygon Mirror is directed at the PC Drum by way of the lens and return mirror The Polygon Mirror has seven faces being turned at high speeds by the Polygon Motor The SOS Mirror and SOS Sensor keep const...

Страница 55: ...ler Toner is attracted onto the electrostatic latent image produced through the exposure process thereby forming a visible developed image 4 1st Toner Conveying Roller Convey toner in the Developer Mi...

Страница 56: ...position Operation 9 2 Operation The Main Motor provides drive for the PC Drum Developing Roller and other mechani cal components 1 Recycled Toner Conveying Screw 4 Developing Roller 2 Recycled Toner...

Страница 57: ...after it has been removed from the copier Utmost care should also be used when handling the PC Drum to ensure that its surface is not contaminated 9 4 Grounding of the PC Drum The ground contact Groun...

Страница 58: ...ischarge from the PC Drum Charge Corona The grid mesh interposed between the corona wire and the PC Drum ensures that a uni form charge is deposited across the entire surface of the PC Drum The corona...

Страница 59: ...DC AC is applied to the Developing Roller Vb DC is applied to prevent toner from sticking to the background of the image Vb AC is applied to enhance good separation of toner from carrier The amount of...

Страница 60: ...ATDC Sensor 4021M019AA 3rd Toner Conveying Roller Developing Roller 1st Toner Conveying Roller With the copier set in the ATDC Sensor Automatic Adjustment mode press the Start key The developer is mix...

Страница 61: ...e the amount of toner supplied from the Toner Bottle there is a Metering Chamber provided in the outer race of the coupling 3 When the Toner Bottle turns toner in the Metering Chamber drops 4 Toner fr...

Страница 62: ...value If T C is less than 14 toner replenishing is determined according to the B W value Toner is replenished until T C becomes 14 The greater the value of B W in the table the higher the B W ratio h...

Страница 63: ...ion results however if T C falls within the range between 8 and 10 when the Front Cover is opened and closed The machine enters the T C recover mode when a T C of 10 or less is detected Toner is reple...

Страница 64: ...eration 12 4 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 PC7 detects the To...

Страница 65: ...lative period of time through which the PC Drum has been driven reaches a predetermined value the PC Drum is turned back ward by turning the Main Motor backward Shoulder gears comprising two different...

Страница 66: ...ing of the exposure section PH No Name Function System 1 Synchronizing Roller Transports the paper onto the developing section 2 Transport Roller 3 Paper Dust Remover Prevents paper dust from sticking...

Страница 67: ...Operation 14 2 Operation Drive from the Main Motor M1 is transmitted through a gear train to the Synchronizing Roller Clutch CL1 14 3 Paper Dust Remover The Paper Dust Remover collects paper dust on...

Страница 68: ...rn toner sticking to the Image Transfer Roller to the PC Drum It is performed in the following timings At the start and end of a copy cycle when the Power Switch is turned ON when a mis feed or malfun...

Страница 69: ...bizhub 162 bizhub 210 Composition Operation 16 Paper take up 16 1 Construction 1 Paper Size Detecting Board PWB I 4 Feed Roller 1 2 Paper Size Detecting Sensor S11 5 Separation Roller 1 3 Paper Empty...

Страница 70: ...3 bizhub 162 bizhub 210 Composition Operation 16 2 Operation The Main Motor M1 provides the drive for paper take up operations The drive is transmitted through the Paper Take up Solenoid 1 Main Motor...

Страница 71: ...ion 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 pap...

Страница 72: ...tion When the drawer is slid into the copier the light blocking plate blocks the Set Sensor The copier then knows that the drawer has been slid in position 16 4 Paper Empty Detection Mechanism The Pap...

Страница 73: ...on 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 The width CD of the paper is detected when t...

Страница 74: ...W1 SW2 SW3 SW4 B4 ON Activated A3 ON ON A5 R ON ON Activated A4 ON A5 postcards ON ON ON A5 R ON ON ON Activated A4 ON ON B5 ON ON ON A4 R ON ON ON ON B5 R Paper Size Detecting Board PWB I Paper Size...

Страница 75: ...ller Sensor within a given period of time after the sequence has been started The paper take up sequence is then performed again These paper take up sequences are repeated a given number of times 4021...

Страница 76: ...is provided by the Main Motor M1 The drive is transmitted through the Paper Take up Solenoid Bypass 17 2 Paper Detection Mechanism The Sensor detects a sheet of paper on the Manual Bypass Main Motor...

Страница 77: ...17 Manual bypass section Theory of Operation Ver 1 0 Apr 2005 50 bizhub 162 bizhub 210 Composition Operation 17 3 Manual Feed Take Up Control 4034M539CA...

Страница 78: ...n 18 Fusing unit section 18 1 Construction for bizhub 162 Heat and pressure from the Fusing Roller permanently fuse toner onto the paper 1 Fusing Roller Heater Lamp H1 4 Fusing Roller Thermostat TS1 2...

Страница 79: ...bizhub 210 Heat and pressure from the Fusing Roller permanently fuse toner onto the paper 1 Fusing Roller Sub Heater Lamp H2 5 Fusing Roller Thermistor TH1 2 Fusing Roller Heater Lamp H1 6 Fusing Rol...

Страница 80: ...vides the drive for the Fusing Unit 18 4 Fusing Roller Pressure Mechanism To provide a nip width between the rollers a Pressure Spring is used functioning to press the Fusing Roller rt up against the...

Страница 81: ...the Fusing Roller temperature becomes excessively high the Fusing Roller Heater Lamp is shut down Machine Condition or Paper Type Mode 1 Mode 2 Mode 3 Standby 180 C 180 C 170 C 170 C Plain paper widt...

Страница 82: ...esponding electrical signal If the Fusing Roller temperature becomes excessively high the Fusing Roller Heater Lamp is shut down Machine Condition or Paper Type Mode 1 Mode 2 Mode 3 Standby 180 C 180...

Страница 83: ...he 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 When the cumulative number of copies made through conti...

Страница 84: ...r exit for bizhub 162 57 bizhub 162 bizhub 210 Composition Operation 19 Paper exit for bizhub 162 19 1 Construction 19 2 Operation The Main Motor M1 provides the drive for the exit section 1 Main Moto...

Страница 85: ...r 2005 58 bizhub 162 bizhub 210 Composition Operation 20 Paper exit for bizhub 210 20 1 Construction 20 2 Operation The exit rollers are driven by the Duplex Unit Switchback Motor M31 1 Duplex Unit Sw...

Страница 86: ...evel oping bias Vb control The Vg Vb control voltage is varied to bring Vg Vb to an appropriate level according to the following settings Tech Rep Choice ID Adjustment Tech Rep Choice VG Adjustment Us...

Страница 87: ...fan motor draws air from the area around the Power Supply Unit to the outside to prevent the Power Supply Unit temperature from running high The cooling fan motor is turned at full speed when the Main...

Страница 88: ...addition the fan motor pulls paper being transported up through suction force to help stabilize paper transport Ozone produced from the PC Drum Charge Corona is absorbed by the Ozone Filter from the...

Страница 89: ...22 Others Theory of Operation Ver 1 0 Apr 2005 62 bizhub 162 bizhub 210 Composition Operation Blank page...

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