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Theory of Operation Ver. 1.0 Apr. 2005

1. Product specification

DF-501

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.)

Detectable Original sizes

A5, B5, A4, 8.5

14 (Legal), 8.5

11 (Letter), 5.5

8.5 (Invoice),

Custom size width: 138 to 216 mm; length: 130 to 356 mm

Paper capacity

Maximum 50 sheets (80 g/m

) (21 lb)

Registration

Center

Original loading orientation

Face up

Productivity

12 sheets/minute (with plain A4 or Letter paper)

Original feeding Mode

Standard mode

Power source

DC 24 V, DC 5 V (supplied by main unit)

Power consumption

Less than 30 W

Dimension

W: 497 mm

D: 355 mm

H: 80 mm

(W: 19.5 inch

D: 14 inch

H: 3.25 inch)

Weight

3.2 kg (7 lb)

Operating environment

Same as the copier

Original types

Possible problems

Originals bound with staples or paper clips

Incorrect paper take-up, damaged originals or
drive malfunctions due to jammed paper clips

Originals bound with glue

Incorrect paper take-up or damaged originals

Folded, torn or extremely wrinkled originals

Incorrect paper take-up or damaged originals

Curled originals
(more than 10 mm from front edge)

Paper misfeeds due to folded or skewed originals

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Содержание A0XY026

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: ...of the Print Head Unit 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...

Страница 14: ...r le constructeur Mettre au rebut les batteries usag es conform ment aux instructions du fabricant Denmark ADVARSEL Lithiumbatteri Eksplosionsfare ved fejlagtig h ndtering Udskiftning m kun ske med ba...

Страница 15: ...nd 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 res...

Страница 16: ...n anv ndaren uts ttas f r osynlig laserstr lning som verskrider gr nsen f r laserklass 1 halvledarlaser Den maximala effekten f r laserdioden 15 mW v gl ngden 770 800 nm VARO Avattaessa ja suojalukitu...

Страница 17: ...MS S 16 5 1 Laser Safety Label A laser safety label is attached to the inside of the machine as shown below 5 2 Laser Caution Label A laser caution label is attached to the outside of the machine as s...

Страница 18: ...nd PC Drum be sure first to turn the printer OFF If the job requires that the printer be left ON take off your watch and ring and wear laser protective goggles A highly reflective tool can be dangerou...

Страница 19: ...id burns and electric shock CAUTION WARNING INDICATIONS ON THE MACHINE 4980p0c001aa 4980p0c002aa 4980p0c003aa High temperature Do not throw into a fire You may be burned or injured if you touch any ar...

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

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 path 12 Composition Operation 4 Components 13 5 Drive 14 6 Operating Sequence 15 6 1 Copy Process 15 6 2 Print Start Sequence 17 6 2 1 When the pre start control is not provided 17 6 2 2 When the...

Страница 25: ...4 10 1 3 Paper Empty Detection 34 10 1 4 Paper Take up Retry Function 34 11 Image transfer section 35 11 1 Overview 35 12 Fusing section 36 12 1 Overview 36 12 2 Fusing Temperature Control 37 12 2 1 T...

Страница 26: ...configuration 1 Automatic Document Feeder DF 501 5 Mechanical Counter MC 502 2 Original Cover OC 503 6 Expansion memory 32 MB EM 101 3 Main Unit bizhub 160 bizhub 160f bizhub 161 bizhub 161f 7 NIC NC...

Страница 27: ...2 Way system Tray1 and Bypass Tray 3 Way system is possible if optional PF 501 Tray2 is installed Exposure system Unit scanning slit exposure Developing system FMT Fine Micro Toning single component...

Страница 28: ...size and 600 dpi 300 dpi with plain A4R or Letter R paper If the Start key is pressed more than 3 seconds after opening and clos ing the Original Cover or Auto Document Feeder after the engine has wa...

Страница 29: ...rfaces IEEE 1284 Parallel USB Revision 1 1 except for Windows NT Printer Language GDI Fonts Windows Supported Operating Systems Windows XP SP2 or later Windows server 2003 Windows 2000 SP4 or later Wi...

Страница 30: ...S Math PI Font Roman 8 Desktop Microsoft Publishing Math 8 MC Text ODBH Legal Symbol Wingdings Typeface List Total 53 Courier CG Times CG Times Bold CG Times Italic CG Times Bold Italic CG Omega CG Om...

Страница 31: ...ystem Tray1 and Bypass Tray 3 Way system is possible if optional PF 501 Tray2 is installed Exposure system Unit scanning slit exposure Developing system FMT Fine Micro Toning single component developi...

Страница 32: ...300 dpi with plain A4R or Letter R paper If the Start key is pressed more than 3 seconds after opening and clos ing the Original Cover or Auto Document Feeder after the engine has warmed up Metric Siz...

Страница 33: ...rfaces IEEE 1284 Parallel USB Revision 1 1 except for Windows NT Printer Language GDI Fonts Windows Supported Operating Systems Windows XP SP2 or later Windows server 2003 Windows 2000 SP4 or later Wi...

Страница 34: ...Desktop Microsoft Publishing Math 8 MC Text ODBH Legal Symbol Wingdings Typeface List Total 53 Courier CG Times CG Times Bold CG Times Italic CG Times Bold Italic CG Omega CG Omega Bold CG Omega Itali...

Страница 35: ...o 12 13 14 15 Other dialing Pause insert Phone Book dial On hook dial Automatic redial Redial Chain dial Combination dial Transmission Transmission mode ADF TX Memory TX Batch TX Broadcast TX Confiden...

Страница 36: ...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...

Страница 37: ...ional Paper Feed Cassette is mounted the system offers a three way paper supply system The paper taken up and fed in by the Paper Take Up Roll is transported through the printer by the Image Transfer...

Страница 38: ...s 13 bizhub 160 160f bizhub 161 161f Composition Operation Composition Operation 4 Components 4980t2c001aa IR Section Paper Exit Section PH Print Head Section IC Imaging Cartridge Section Paper Take u...

Страница 39: ...of Operation Ver 1 0 Apr 2005 14 bizhub 160 160f bizhub 161 161f Composition Operation 5 Drive 4980M010AA Scanner Unit Paper Take up Roller Scanner Motor M4 Cooling Fan Motor2 M3 Cooling Fan Motor1 M2...

Страница 40: ...which in turn goes through appropriate correction processes before being output to the PH image processing section 5 PH Image Processing After going through correction processes the digital image sig...

Страница 41: ...Plate neutralizes any charge left on the paper 12 Recovery The residual toner on the surface of the PC Drum is temporarily recovered and is made into even finer particles during the print end sequence...

Страница 42: ...equence 6 2 1 When the pre start control is not provided Start key ON Polygon Motor Main Motor PaperTake Up Solenoid S1 Drum Charge Output Exposure Output Developing Output Image Transfer Output Drum...

Страница 43: ...rum Charge Output Exposure Output Developing Output Image Transfer Output Drum charge DC Drum charge DC Charge Reverse bias Unexposed area output ON Negative output 4980M017AB 4980M014AA Image Transfe...

Страница 44: ...Toning developing system The Toner Agitating Screw conveys toner in the Toner Cartridge onto the Toner Supply Roller The Toner Supply Roller transports the toner to the Sleeve Roller The Resin Sleeve...

Страница 45: ...0 Apr 2005 20 bizhub 160 160f bizhub 161 161f Composition Operation The Imaging Cartridge consists of a T C Toner Cartridge and a D C Drum Cartridge see the illustration below 4136M511AA T C Toner Ca...

Страница 46: ...immediately after it has been removed from the printer Use utmost care to prevent the surface of the PC Drum from being dirtied Grounding of the PC Drum The ground contact point Ground Plate for the P...

Страница 47: ...the surface of the PC Drum from the Sleeve Roller and returns it back to the Toner Hopper The same bias as that applied to the Sleeve Roller is applied to this Bias Seal thereby preventing toner from...

Страница 48: ...Cartridge TC detection board detects electrically whether or not the cartridge is loaded in position 7 4 2 Interchangeability Detection The built in IC chip TC detection board detects the applicable...

Страница 49: ...s at which the input voltage to the reflecting light detection sensor exceeds a predetermined period of time is counted When this count reaches a prede termined value a toner near empty or a toner emp...

Страница 50: ...Pre charge Film directly deposit charge on the PC Drum they produce little ozone Further the charging voltage is low and the deposited charge is even and stable across the surface of the PC Drum The...

Страница 51: ...tion varying along the length of the Exposure Lamp 4 Gamma Correction The light reflection data read by the CCD Sensor is translated to corresponding image density data 5 Zoom Processing The synchrono...

Страница 52: ...he surface of the original directing it to the 2nd Mirror 3 2nd Mirror Reflects the light reflected off the 1st Mirror directing it to the 3rd 5th Mirror 4 3rd 5th Mirror Reflects the light reflected...

Страница 53: ...eed at which the Scanner moves for scan and return motion is controlled by varying the period of the motor drive pulse that is timed with the reference clock The number of motor drive pulses as determ...

Страница 54: ...b 161 161f Composition Operation 9 PH Print Head section 9 1 Construction The laser beam light emitted from the Print Head is used to scan the image as driven by the Polygon Motor Polygon Mirror G2 Le...

Страница 55: ...p and fed into the printer The printing is started when the Controller Mechanical Control Board sends a VIDEO signal to the Print Head a given period of time after the leading edge of the paper actu a...

Страница 56: ...n issued the Controller Mechanical Control Board outputs a laser ON signal The laser ON signal makes a laser beam to be emitted and the laser beam travels to the Polygon Mirror G1 Lens and the SOS Mir...

Страница 57: ...t start signal HSYNC output from the Controller Mechanical Control Board and the width of the paper The laser emission area is determined by the paper size 9 4 2 Sub scanning Direction The print start...

Страница 58: ...e Paper Lifting Plate Then the top sheet of paper loaded in the tray is taken up and fed into the printer The actual length of paper is detected based on the period of time through which the Paper Tak...

Страница 59: ...he actuator is raised to block the Paper Empty Sensor When paper runs out the actuator drops into the hole in the tray unblocking the Paper Empty Sensor 10 1 4 Paper Take up Retry Function To reduce t...

Страница 60: ...nsfer Roller at all times during the print cycle This results in a very little amount of ozone being produced and there is a little chance of a double transferred image occurring To clean the Image Tr...

Страница 61: ...by the Fusing Roller Heater Lamp and the Pressure Roller This permanently fixes the toner image in the paper Electrical Parts Control Signal Blocked Unblocked WIRING DIAGRAM PS1 PWB P MPJ8P 3 L H B 7...

Страница 62: ...n power consumption The temperature control mode when the control is resumed when power is turned ON the Front Door is opened and closed or the Energy Save mode is canceled is set according to the mod...

Страница 63: ...mined level mode 1 is completed and mode 2 starts Mode 2 Mode 2 lasts for 208 sec Mode 3 Mode 3 continues until the temperature control is interrupted by opening and closing the Front Door etc 12 2 4...

Страница 64: ...d OFF to shut down the output of the Heater Lamp Hard protect As a protection should there be a software failure the Thermostat is used to shut down current to the Heater Lamp when the temperature of...

Страница 65: ...ism 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 Elect...

Страница 66: ...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...

Страница 67: ...allowing the printer to detect the posi tion of the cover whether the cover is raised or lowered This magnet attracts the Original Cover Set Sensor provided on the printer side thus activating the sen...

Страница 68: ...Theory of Operation Ver 1 0 Apr 2005 15 Data flow diagram 43 bizhub 160 160f bizhub 161 161f Composition Operation 15 Data flow diagram 4980M501AA...

Страница 69: ...15 Data flow diagram Theory of Operation Ver 1 0 Apr 2005 44 bizhub 160 160f bizhub 161 161f Composition Operation 1 GDI Print Data Flow 2 PCL Print Data Flow 4980S526AA 4980M502AA...

Страница 70: ...Theory of Operation Ver 1 0 Apr 2005 15 Data flow diagram 45 bizhub 160 160f bizhub 161 161f Composition Operation 3 FAX Memory TX Data Flow 4 FAX Hook TX Data Flow 4980S521AA 4980S522AA...

Страница 71: ...15 Data flow diagram Theory of Operation Ver 1 0 Apr 2005 46 bizhub 160 160f bizhub 161 161f Composition Operation 5 FAX RX and Print Data Flow 6 TWAIN Scan Data Flow 4980S524AA 4980S523AA...

Страница 72: ...Theory of Operation Ver 1 0 Apr 2005 15 Data flow diagram 47 bizhub 160 160f bizhub 161 161f Composition Operation 7 Network GDI Print Data Flow 4980S525AA...

Страница 73: ...15 Data flow diagram Theory of Operation Ver 1 0 Apr 2005 48 bizhub 160 160f bizhub 161 161f Composition Operation 8 Network PCL Print Data Flow 4980M503AA...

Страница 74: ...Theory of Operation Ver 1 0 Apr 2005 15 Data flow diagram 49 bizhub 160 160f bizhub 161 161f Composition Operation 9 I FAX Data Flow 4980S527AA...

Страница 75: ...15 Data flow diagram Theory of Operation Ver 1 0 Apr 2005 50 bizhub 160 160f bizhub 161 161f Composition Operation Blank page...

Страница 76: ...SERVICE MANUAL 2005 04 Ver 1 0 DF 501 THEORY OF OPERATION...

Страница 77: ......

Страница 78: ...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 79: ......

Страница 80: ...tion Operation 3 Components 3 4 Drive 3 5 Operation 4 5 1 Original Feed Section 4 5 1 1 Document Take up Mechanism 4 5 1 2 Document Separation Mechanism 5 5 2 Transport Exit Section 6 5 2 1 Document T...

Страница 81: ...DF 501 Outline Composition Operation Theory of Operation Ver 1 0 Apr 2005 ii Blank page...

Страница 82: ...minute with plain A4 or Letter paper Original feeding Mode Standard mode Power source DC 24 V DC 5 V supplied by main unit Power consumption Less than 30 W Dimension W 497 mm D 355 mm H 80 mm W 19 5...

Страница 83: ...2 Paper path Theory of Operation Ver 1 0 Apr 2005 2 DF 501 Outline 2 Paper path 1382t1c001aa Original is fed Image read position Transports to the original exit tray...

Страница 84: ...DF 501 Composition Operation Composition Operation 3 Components 4 Drive 1382t2c001aa Original fed section Image read position Transports Exit section 1382M007AA Pick up Roller Take up Roller Transport...

Страница 85: ...ism with the raising and lower ing motion of the Pick up Roller The Pick up Roller and Take up Roller turn to take up and feed the original properly The Pick up Roller transports the original up to th...

Страница 86: ...up and fed through the space between the Take up Roller and Separator Pad is same as that on the backside of the sheet of paper allows the Take up Roller to fed the paper When two or more sheets of p...

Страница 87: ...turns to transport the original up to the document scanning position of the printer The Main Motor drives the Transport Roller through a gear train Electrical Component Control Signal ON OFF WIRING DI...

Страница 88: ...s the Leading Edge Detection Sensor and is fed onto the Document Exit Tray The Main Motor turns the Exit Roller through a gear train Electrical Component Control Signal ON OFF WIRING DIAGRAM M5 DF PWB...

Страница 89: ...rinter to detect the position of the Document Feeder whether the Document Feeder is raised or lowered This magnet attracts the Original Cover Set Sensor provided on the printer side thus activating th...

Страница 90: ...SERVICE MANUAL 2005 04 Ver 1 0 PF 501 THEORY OF OPERATION...

Страница 91: ......

Страница 92: ...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 93: ......

Страница 94: ...heory of Operation Ver 1 0 Apr 2005 i CONTENTS Outline 1 Product specification 1 Composition Operation 2 Operation 3 2 1 Paper Take up Mechanism 3 2 2 Paper Separating Mechanism 4 2 3 Paper Empty Dete...

Страница 95: ...PF 501 Outline Composition Operation Theory of Operation Ver 1 0 Apr 2005 ii Blank page...

Страница 96: ...Plain and recycled paper 60 to 90 g m2 16 to 24 lb Media sizes A4 and Letter Paper capacity Maximum 500 sheets 80 g m2 21 lb Registration Center Power source DC 24 V DC 5 V supplied by main unit Power...

Страница 97: ...1 Product specification Theory of Operation Ver 1 0 Apr 2005 2 PF 501 Outline Blank page...

Страница 98: ...s the same as that for Tray 1 The paper separation mechanism uses the Paper Separator Fingers provided in the cas sette and the elasticity the paper has in its own right It ensures that only one sheet...

Страница 99: ...fed into the copier with the top sheets of paper To prevent this situation from occurring there ia a Friction Plate pro vided on top of the Paper Lifting Plate 2 3 Paper Empty Detection There is a Pap...

Страница 100: ...ning ON the switch The Cassette Type Detection Switch consists of three switches The combination of these switches that turn either ON or OFF allows the printer to deter mine the cassette type paper s...

Страница 101: ...2 Operation Theory of Operation Ver 1 0 Apr 2005 6 PF 501 Composition Operation Blank page...

Страница 102: ...SERVICE MANUAL 2005 04 Ver 1 0 NC 501 SU 502 THEORY OF OPERATION...

Страница 103: ......

Страница 104: ...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 105: ......

Страница 106: ...pecifications 1 Composition Operation 2 Data flow diagram 3 2 1 Data Flow Diagram for Network GDI Printing 3 2 2 Data Flow Diagram for Network PCL Printing 4 2 3 Data Flow Diagram for N Scanner I Fax...

Страница 107: ...NC 501 SU 502 Outline Composition Operation Theory of Operation Ver 1 0 Apr 2005 ii Blank page...

Страница 108: ...xt plain image tiff I FAX Communication Protocol TX SMTP RX POP3 I FAX Data Format E Mail Format MIME Attached File format Transmission TIFF S Reception TIFF F I FAX Cording method Transmission MH Rec...

Страница 109: ...1 Product specifications Theory of Operation Ver 1 0 Apr 2005 2 NC 501 SU 502 Outline Blank page...

Страница 110: ...CD Motor DRV EEPROM CA RISC M C MPU USB P1284 Flash ROM Flash ROM Flash ROM Flash ROM ADF Sensors Panel IA2 CODEC CCD Module SDRAM SO DIMM Socket SDRAM SDRAM DIMM Socket RISC PA SDRAM PHY ARM NET SRAM...

Страница 111: ...RV EEPROM CA RISC M C MPU USB P1284 Flash ROM Flash ROM Flash ROM Flash ROM ADF Sensors Panel IA2 CODEC CCD Module SDRAM SO DIMM Socket SDRAM SDRAM DIMM Socket RISC PA SDRAM PHY ARM NET SRAM RTC MODEM...

Страница 112: ...RISC M C MPU USB P1284 Flash ROM Flash ROM Flash ROM Flash ROM ADF Sensors Panel IA2 CODEC CCD Module SDRAM SO DIMM Socket SDRAM SDRAM DIMM Socket RISC PA SDRAM PHY ARM NET SRAM RTC MODEM NCU RJ45 Net...

Страница 113: ...tion 3 Electrical components 3 1 Network Interface Card U11 Internet Fax Network Scan Kit U9 EEPROM U12 FlashROM U13 SDRAM U14 SDRAM P401 Hookup Connector to PCL Control Board P402 Hookup Connector to...

Страница 114: ...us display Orange LED Network Interface Card status display 4980G511AA Green LED CN105 P502 Orange LED LEDs Status Green LED Green ON This is lit when the network cable is connected correctly If this...

Страница 115: ...3 Electrical components Theory of Operation Ver 1 0 Apr 2005 8 NC 501 SU 502 Composition Operation Blank page...

Страница 116: ...TECHNOLOGIES INC Printed in Japan Printed in Japan DD4980CE1 1000 DD4980CE1 1000 Use of this manual should be strictly supervised to avoid disclosure of confidential information Use of this manual sh...

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