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Konica Minolta CF5001 Copier User Manual

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1. 1 27 6 10 Transfer belt cleaning Sub step 3 1 28 CONTENTS CF5001 Ver 1 0 Sep 2003 6 11 2nd transfer roller L cleaning Sub step 4 1 28 6 12 Toner collection Sub step 5 1 29 6 13 Pr cess Spod wate E EA roget be 1 29 UNIT EXPLANATION m SGANNER es toned Set pups e ARE E SOS GA NOU 2 1 11 Gompositlon I web RAI DORT kalde DAF SEAS nei deed beady geet 2 1 1 2 Operation Eie a ihe EM Ibi t ke em adel 2 2 1 2 1 Home position search the exposure unit 2 2 o 1 2 2 Shading correction 0 1 2 3 lt 1 2 3 Original reading mode 2 4 lt 1 2 4 Original reading control 2 5 x 1 2 5 Sars ere de eh 2 8 x Uo AE control PE 2 9 1 2 7 wie tee kar Ra TR Ra s 2 9 2 WRITE Ehe passed ea Mae es Kaen eh ken ds ne tt Bae 2 11 2 1 Composition ae a DTE ee Ded eed eee 2 11 2 2 Operation si big Re ed ip do ARP eere E RR ROC
2. 2 55 11 2 5 ADU pre registration 2 57 11 2 6 Registration control isse es syre eee Ra eden a Teke RE eat es 2 58 11 2 7 2ndtransfercontr l 22114 EE ELLE 2 59 11 2 8 Paper exit full detection contra 2 59 12 FIXING UNIT num deRemate gk erkennt ee ase ga 2 60 12 1 oido od dod EEN 2 60 12 2 Operations i i meiner ec ah STOL da ud WOE or 2 62 12 21 Fixing drive cohttol u or y ue reet eere ht ede Boe ere aree ja 2 62 12 2 2 Pressure release Control 2 63 12 2 3 Web control ur m ERU IAE EI beger ruten ubrukt d esi 2 64 12 2 4 Temperature Control 2 64 13 INTERFACE mens ek et Bra e ER de Ee EU RIA hae d Pelee aed 2 65 18 1 Gompositon vaare be os Bh gag DEN RUE breast de dead 2 65 14 IMAGE STABILIZATION 2 66 14 1 Toner density 1 1 171 4 9 44 2 66 14 22 Dmak controli hw tee eee ele ends EE bi ide Pada e ede ae aes 2 66 14 3 Charging potential 1 4 2 67 14 3 1 Correction of the reference value eee 2 67 14 3 2 Low humidity environment
3. 8 Belt waste toner receiving port Receiving port of waste toner from the transfer belt unit CF5001 Ver 1 0 Sep 2003 TONER COLLECTION Symbol Name Function or method 9 Belt collection screw Waste toner conveyance from the belt waste toner receiving port to the upper section of the vertical conveyance pipe Screw method 10 Drum JN waste toner receiving port Waste toner receiving port from the drum Y 11 Drum M waste toner receiving port Waste toner receiving port from the drum M 12 Drum C waste toner receiving port Waste toner receiving port from the drum C 13 Drum waste toner receiving port Waste toner receiving port from the drum K 14 Horizontal conveyance screw Waste toner conveyance from the lower section of the vertical conveyance pipe to the waste toner discharge exit 5 Screw method 15 Horizontal pipe Waste toner conveyance from the vertical conveyance pipe to Z the toner collection box amp M18 Transfer belt motor See 5 Transfer belt unit M41 Paper feed motor See 8 Paper feed trays 1 to 3 2 7 2 Operation 7 2 1 Toner collection control Since the toner collection section is driven by the transfer belt motor M18 and the paper feed motor M41 its control depends on the transfer belt drive and the paper feed drive 7 2 2 Waste toner full detection control When the waste toner full sens
4. A PRECAUCION CUID DO NOT put your hand RII i AVORSICHT between the main body VORSICHT and developing fixing unit A ATTENZIONE CAUTION otherwise you may injured ATTENTION PRECAUCION CUIDADO AA CAUTION The fixing unit is very hot To avoid getting burned PRECAUCION DO NOT TOUCH ATTENZIONE Alta temperatura AER CAUTION ATTENTION A CUIDADO Top surface of the fixing unit AA CAUTION CAUTION ATTENTION ixi A PRECAUCION A CUIDADO The conveyance fixing CAUTION A ATTENTION unit is heavy Inside of the fixing unit AVORSICHT JAER Use care and draw it out A PRECAUCION 1 EI v A ATTENZIONE gently otherwise you may be injured 8050sf003e NCAUTION Please adhere to all caution labels to avoid burns or injury SAFETY AND IMPORTANT WARNING ITEMS ATTENTION As ATTENTION A 3C DO NOT INSERT Ro arean 1 vour finger into 2 the two CAUTION 1 hinge portions 2 otherwise you may be injured O Z ear side of the
5. 1 2 67 14 4 Dot diameter adjustment contra 2 68 OUTLINE 2 Q lt 2 gt lt E 2 CONTENTS CF5001 Ver 1 0 Sep 2003 14 5 Gamma correction hn 2 68 15 OTHER GONTROLS 5 tib exu arms i 2 69 15 1 Parts to which power is supplied even when the reset switch is turned 2 69 d 15 2 Parts that operate only when the power switch is turned 2 70 3 15 2 1 Parts that operate when the reset switch is turned 2 70 15 2 2 Parts that operate when the main switch is turned 2 70 15 3 contiol oe eevee ise te ront ala e tain Eu ranet ektet 2 71 15 31 2 rast epee C EE D ne 2 71 15 4 Operation board control mss rh 2 72 5 15 4 1 Operation board 2 72 E 15 5 Counter control x ios icd bete eg Ee de BE AE EA TUUS 2 73 2 15 5 1 Counter 2 1 2 73 a 15 52 EE 2 73 m 15 6 ACS control de meets DR EE RI buo ee dnb HELP idle 2 75 15 6 1 Switching between the color mode and the black and white mode 2 75 gt 15 6 2 Copy count when using AC 2 75
6. 1 Fixing paper exit sensor PS17 6 Paper exit roller 2 Decurler roller 7 Paper exit sensor PS13 3 Reverse exit sensor PS19 8 Reverse gate 4 Reverse exit roller 2 9 Fixing section 5 Paper exit full sensor PS12 2 53 REGISTRATION ADU REVERSE PAPER EXIT CF5001 Ver 1 0 Sep 2003 B Reverse exit operation single sided 2 copies Paper feed motor M41 Registration roller motor M30 Fixing motor M29 Reverse exit motor M33 z Q z lt gt 2 2 Reverse exit solenoid SD4 Fixing exit sensor PS17 Reverse exit sensor PS19 Paper exit sensor PS13 TOP 1 START button ON 3 2nd paper exit 2 1stpaper exit 11 2 3 ADU conveyance control Paper that has been copied on the front side and conveyed to the reverse exit section while in the double side copy mode is conveyed to the ADU reverse section by the reverse exit roller 2 CF5001 Ver 1 0 Sep 2003 REGISTRATION ADU REVERSE PAPER EXIT 11 2 4 Paper reverse control A Paper reverse path 1 When conveying paper Paper conveyed from the reverse exit roller 2 is conveyed to the ADU reverse roller according to the form of the conveyance path EE 8050ma2029
7. 1 ADU paper reverse sensor PS21 3 ADU conveyance roller 1 2 ADU reverse roller 4 Reverse exit roller 2 2 When paper reverse Paper conveyed to the ADU reverse section is sent back by the reverse rotation of the ADU reverse roller At this time it is conveyed to the ADU conveyance roller 1 not to the reverse exit roller 2 according to the form of the conveyance path As a result the paper is flipped over out The paper thus reversed is con veyed to the loop roller through the ADU conveyance rollers 1 and 2 and the ADU pre registration roller to be copied on the back side 8 7 6 5 4 3 2 1 C Ly VE sl 1 L1 H E gt at 6 7 8050ma2030 1 Loop roller 5 ADU reverse roller 2 ADU pre registration roller 6 ADU conveyance sensor PS20 3 ADU conveyance roller 2 7 ADU conveyance roller 1 4 ADU paper reverse sensor PS21 8 Reverse exit roller 2 2 55 2 lt 2 a gt lt E z 2 REGISTRATION ADU REVERSE PAPER EXIT CF5001 Ver 1 0 Sep 2003 B Paper reverse operation Paper feed motor M41 Registration roller motor M30 ADU reverse motor M32 F R z Reverse exit sensor PS19 n 2 ADU paper reverse sensor PS21 m
8. injured when you insert your hand in the copier e g for clearing paper jam Check the interlock switch and actuator for loosening and check whether the interlock functions properly Q If the interlock does not function you may receive an electric shock or be N Make sure the wiring cannot come into contact with sharp edges burrs or RAJ other pointed parts Current can leak leading to risk of electric shock or fire Make sure that all screws components wiring connectors etc that were removed for safety check and maintenance have been reinstalled in the orig inal location Pay special attention to forgotten connectors pinched cables VT forgotten screws etc SS pl A risk of copier trouble electric shock and fire exists NDANGER HANDLING OF SERVICE MATERIALS Toner and developer are not harmful substances but care must be taken not to 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 noticeable consult a physician Never throw the used cartridge and toner into fire 6 You may be burned due to dust explosion NDANGER HANDLING OF SERVICE MATERIALS Unplug the power cord from the wall outlet Drum cleaner isopropyl alcohol and roller cleaner acetone based are highly flammable and m
9. HTR relay RL3 in the board and provides 24 VAC to each heater via the trans former main body TRNS1 and the transformer LCT TRNS2 15 2 2 Parts that operate when the main switch is turned on When the main switch SW2 is turned on the overall control board OACB detects this condition and sends a control signal to the DC power unit 1 DCPS1 and the AC drive board ACDB As a result DCPS1 supplies 3 5 VDC 5 VDC 12 VDC and 24 VDC to all the boards and optional devices The ACDB turns ON the HTR relay RL3 in the board and provides 24 VAC to each heater via the trans former main body TRNS1 and the transformer LCT TRNS2 2 70 CF5001 1 0 Sep 2003 15 3 Fan control 15 3 1 Fan composition OTHER CONTROLS PRCB 1 2 PRCB 2 2 TSDB DRIVE EM 8050ma2040 Symbol Name Function or method 1 Write exhaust fan 1 M45 Writing section cooling 2 Write intake fan 1 M43 Writing section cooling 3 Write exhaust fan 2 M46 Writing section cooling 4 IP cooling fan M25 Cooling of the overall control board OACB 5 IPB cooling fan M24 Cooling of the image processing board IPB 6 Write intake fan 2 M44 Writing section cooling 7 DCPS cooling fan M42 Cooling around DC power unit 1 DCPS1 8 Paper exit fan F M28 Cooling around the pa
10. O 2 3 VG z Q z lt d gt 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I 1 1 1 1 1 1 I 1 1 1 1 1 1 1 1 I 1 1 I 7 8050ma2005 1 Home position 5 2nd white correction 2 PS1 6 Exposure scan 3 Platen APS position 7 Home position search 4 1st white correction B When performing the AE copy RIB VY 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 L 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I 1 1 1 D 1 8 8050 2006 1 position 5 2nd white correction 2 PS1 6 scan 3 Platen APS position 7 Exposure scan 4 1st white correction 8 Home position search CF5001 Ver 1 0 Sep 2003 SCANNER 1 2 4 Original reading control The reflection from the exposed original reaches to the CCD sensor through the lens The CCD sensor outputs an electric signal analog proportional to the amount of light and then the analog signal is con verted to a digital signal in the CCD board CCDB according to directions from the overall control board OACB The CCD sensor includes three separate photoreceivers for the 1st colors R G and B The A D converter signals for each color are also created separately A Original reading timing The original reading timing
11. 7 Scanner wire Transfers the driving force from M1 to the exposure unit and the V mirror unit front back 8 L1 inverter L1 INVB Turns on L1 M1 Scanner motor Drives the scanner wire for moving the exposure unit and the V mirror unit 3 phase stepping motor M2 Scanner cooling fan Cools the scanner section exhaust PS1 Scanner HP sensor Detects the home position for the exposure unit PS2 APS timing sensor Detects whether the platen cover or RADF is opened closed 2 1 SCANNER CF5001 Ver 1 0 Sep 2003 Symbol Name Function or method PS4 APS sensor L Detects the original size in the sub scan direction for large size PS3 APS sensor S Detects the original size in the sub scan direction for small size 1 2 Operation 1 2 1 Home position search in the exposure unit The exposure units searches for the home position when the main switch SW2 or the start button is turned on The operation may different depending on the state of the scanner HP sensor A When PS1 is off 2 EP E z Q z lt EI X 2 2 PENNE 6 8050ma2002 1 Home position 3 Platen APS location 2 PS1 B When PS1 is on 1 2 3 Y 8050 2003 1 Home position 3 Platen APS location 2 PS1 2 2 CF5001 1 0 Sep 2003 1 2 2 Shading correction reading The exposure unit starts the shadin
12. 18R 292 8 a A3R O 280 4 2 4 280 4 8 5 x 11R 252 4 11 x 17R O 252 4 8K 235 8 16 235 8 O 216 7 B5 216 7 8 5 x 14R O 151 3 8 5 x 11R 151 3 A4R 141 9 F4 O 151 3 B5R 97 3 ASR 43 2 8 5 x 5 5R 30 0 O Sensor on VR VR angle 2 42 CF5001 1 0 Sep 2003 9 BY PASS FEED 9 1 Composition BY PASS FEED 4 3 2 1 8050ma2020 Symbol Name Function or method 1 Paper size LBP PS49 Paper size detection along the length of the by pass tray 2 No paper sensor BP PS47 Detection of the presence of the by pass feed paper 3 Paper size SBP PS48 Assistance of paper size detection along the width of the by pass tray 4 Paper size VR BP VR4 Paper size detection along the width of the by pass tray 5 Paper feed roller BP Paper feed 6 Double feed prevention roller BP Double feed prevention of paper Torque limiter 7 Feed roller BP Feeding of paper 8 Tray upper limit sensor BP PS25 By pass tray paper upper limit detection 9 By pass conveyance sensor PS26 By pass exit paper conveyance detection M41 Paper feed motor See 8 Paper feed tray 1 to 3 M35 Tray up drive motor BP By pass tray up down plate drive DC motor with brush MC6 Paper feed clutch BP Transmission of the by pass tray paper feed power SD5
13. gt lt z 2 DEVELOPING UNIT CF5001 Ver 1 0 Sep 2003 4 2 Operation 4 2 1 Flow of developer Developer in the developing unit after being agitated by the agitator screw is supplied to the developing sleeve by the conveyance screw At this time the bristles amount of the developer on the developing sleeve is regulated by the developing regulation plate After completion of developing the developer on the developing sleeve is collected by the scraper magnet roller to prevent the developer immediately after com pletion of developing from mixing with a new developer This secures the developing follow up at a high rate of printing Collected developer is returned to the agitator screw by the collection screw This allows developer to make a circulation along a defined path 4 5 6 7 Toner z Q lt z lt gt 2 8050ma2014 1 Agitator screw 5 Developing sleeve 2 gt Conveyance screw 6 Scraper magnet roller 3 gt Developing regulation plate 7 Collection screw 4 Drum 4 2 2 Developing control For details of each operation timing related to developing see Image formation timing in 3 Drum unit 4 23 Toner supply control to the developing unit Each of the TDS Y M C and K toner density sensors Y M C and K uses the
14. 1 Transferring the color registration mark The color registration marks 7 for each color are transferred on the transfer belt in order of black C magenta M and yellow Y They are transferred on the front side and rear side in a line These locations are corresponding to the color registration sensor F PS8 and the color registration sensor R PS9 S o cron 5 7 7 7 7 7 2 7 7 lt 7 Z A 2 n z 7 7 2 Z Z 2 Z d 7 7 3 Z 7 2 2 7 Z 7 7 4 7 7 7 7 CI EI 6 5 8050ma2056 1 Color registration mark 5 Color registration sensor F PS8 2 Color registration mark C 6 Color registration sensor R PS9 3 Color registration mark M 7 Direction of image 4 Color registration mark Y 2 16 CF5001 1 0 Sep 2003 WRITE 2 Detecting the color registration mark PS8 and PS9 detect the edge of the color registration mark 7 for each color and convert to digital sig nals The edge detection for one 7 is performed at four positions 2 lt 2 a gt lt E z 2 8050ma2057 1 Direction of the edge detection direction of 4 Color registration sensor F R PS8 PS9 image b Color registration mark 2 Binarized digital signals 3 Detection signal of the color registration sen sor F R PS8 PS9 analog signal 3 Calculating and correcting the color drift amount The t
15. 9 Finisher FN 9 3 Printer controller Fiery S300 50 10 Finisher FN 120 4 disk HDD 7 11 Puncher PK 5 5 Expansion memory 256MB x 4 12 Cover sheet feeder Cover Inserter D 6 Key counter 13 RADF AFR 20 7 TMG 3 Connection kit TMG Kit A 14 Original cover Kit OC 2 PRODUCT SPECIFICATIONS 2 PRODUCT SPECIFICATIONS CF5001 Ver 1 0 Sep 2003 Sensitizing method Paper feed trays 1 Optional B Functions Original to be copied Maximum original size Copy size for metric area Copy size for inch area A Type d Console type floor mounted type 3 Copying method Tandem intermediate transfer type electrostatic method Original table Fixed Original alignment Rear left side as reference Photosensitive material OPC Laser writing 3 trays method 500 sheets x 3 80 to 90 g m 400 sheets x 3 105 g m Multisheet by pass tray 250 sheets 80 to 90 g m 200 sheets 105g m C 208 2500 sheets 80 to 90g m 1 Sheet book solid object A3 or 11 x 17 303 x 438 mm for non standard Tray 1 to 3 B4 A4 A4R B5 B5R 8 5 x 11 8 5 x 14 11 x 17 12 x 18 13 x 19 wide paper 1 By pass feed B4 A4 B5 B5R ABR 8 5 x 11 8 5 x 11R 11 x 17 12 x 18 13 x 19 wide paper 1 ADU B4 4 B5 B5R ABR 8 5 x 11 8 5 x 11R 11 x 17 12 x 18 18 x 19 wide paper 1 B4 A4 B5 B5R 5 5 x 8 5R 8 5 x 11 8 5
16. M 1 10 Laser correction HP sensor JC Detects the home position for the cylindrical lens 2 write unit PS7 1 11 Index sensor board Y SB Y Controls the laser writing position in the main scan direction write unit Y 12 Index sensor board M INDX SB M Controls the laser writing position in the main scan direction write unit M 2 lt 2 lt a gt lt E z 2 z Q z lt EI X 2 2 WRITE CF5001 Ver 1 0 Sep 2003 Symbol Name Function or method 13 Index sensor board C INDX Controls the laser writing position in the main scan direction SBC write unit C 14 Index sensor board K INDX Controls the laser writing position in the main scan direction SBK write unit K 15 Index lens Collects the laser light reflected from the index mirror 16 Laser correction motor Y M7 Swing drives the cylindrical lens 2 write unit Y 17 Laser correction motor M M8 Swing drives the cylindrical lens 2 write unit M 18 Laser correction motor C M9 Swing drives the cylindrical lens 2 write unit 19 Write unit K Write unit for black 20 Write unit C Write unit for cyan 21 Write unit M Write unit for magenta 22 Write unit Y Write unit for yellow 23 dust proof glass Keeps dust out from the write unit 24 fo lens M
17. Pre charging exposure lamp PCL 10 Blade drum cleaning 5 Paper 11 Blade transfer belt cleaning 6 2nd transfer roller L 12 Drum 1 22 CF5001 1 0 Sep 2003 IMAGE CREATION PROCESS 6 2 Charging process Step 1 The charging corona having a gold plated tungsten wire is applied with a high DC voltage minus to neg atively charge the surface of the photosensitive drum by wire discharge The charging corona is provided with a charging control plate to make charges on the surface of the photosensitive drum uniform Photo sensitive drums are provided for the four colors of Y M C and K 8050ma1018 1 Drum 3 Charging corona 2 Charge negative 4 Charging control plate 6 3 Laser exposure process Step 2 Charges on the surface of the photosensitive drum have a characteristic that when they are irradiated with light they are neutralized and vanish Using this characteristic a laser beam is irradiated on the image region to create an image by removing charges on the photosensitive drum This image is referred to as an electrostatic latent image A Laser beam is irradiated on each photosensitive drum of Y M C and K corre sponding to the four color data resolved by the image processing section 8050ma1019 1 Write unit 3 Neutralized section 2 Laser beam 4 Charge negative 1 23 2 IMAGE CREATION PROCESS CF5001 Ver 1 0 Sep 2003 6 4 Developing
18. Q Ze 8050ma1023 1 Transfer belt 3 2nd transfer roller L 2 Paper 4 Separation neutralizing section 1 26 CF5001 1 0 Sep 2003 IMAGE CREATION PROCESS 6 8 Drum cleaning Sub step 1 A drum that has completed the 1st transfer has a residual amount of toner that is left from the transfer pro cess The process to remove toner is referred to as drum cleaning Drum cleaning is made by scraping toner adhered to the drum surface with the edge of a plate called a blade that is made of urethane rubber l 2 O N 2 8050ma1024 1 Drum 3 Residual toner 2 Cleaning blade 6 9 Pre charging exposure Sub step 2 No toner adhesion is found on the surface of a drum that has completed drum cleaning but there is a very small amount of residual potential found Since a normal charging for the next copy print cannot be carried out as it is exposure other than a laser exposure is made to thoroughly neutralize a potential on the drum surface This process is referred to as a pre charging exposure This machine conducts this process by using a pre charging exposure lamp PCL 8050ma1025 1 Drum 3 Residual charge 2 Pre charging exposure lamp PCL 1 27 IMAGE CREATION PROCESS CF5001 Ver 1 0 Sep 2003 6 10 Transfer belt cleaning Sub step 3 transfer belt that has completed the 2nd transfer has residual amount of toner that is left from the trans fer process
19. Service Manual KONICA MINOLTA General CF5001 e Reese Ir rs z eg 22 CF5001 Ver 1 0 Sep 2003 CONTENTS CONTENTS EE s1 E EOS SO EEN S 1 DESCRIPTION ITEMS FOR DANGER WARNING AND CAUTION S 1 Es O m RRRR GRRIRRR IRR RII S 2 OE NE ME 5 10 5 10 5 5 11 lt INDICATION OF WARNING ON THE MACHINE S 13 i m OUTLINE k rde Geek ARE REIN 1 1 2 2 PRODUCT 2 1 2 3 CENTER CROSS SECTION 14 sa EE TESE Se Ka RE wm Ge ee E TE E ned 1 5 4 PAPER PATH nce Sake DR andae E E RN binis o dr cud mul acit 1 6 5 DRIVE SYSTEM 1 8 51 DRUM drive saa SAS eek REDEEM eie A YOU 1 8 5 2 Transfer belt conveyance pressure 1 9 5 3 Developing drive ode du rS s Ee 1 10 5 4 Toner supply drive syk noster pe E ROLE RIVA Ares e te EM OD 1 11 5 5 Toner collection 1 1 12 5 04 Eine Kelt VEER 1 13 5 7 Paperfeed drivers lt i son ER ld he eed EY Galeien te le aep Rip 1 14
20. 1 0 Sep 2003 Symbol Name Function or method 9 Toner guide brush Scraping and collection of toner on the transfer belt 10 Toner collection screw Conveys toner from the belt cleaning section to the toner collec tion section Screw method 11 Image correction unit Detection of variety of information of images transferred on the transfer belt 12 Transfer belt separation claw Paper separation assist from the transfer belt Pressure release method by the transfer belt separation claw sole noid SD1 13 2nd transfer roller U Toner transfer from the transfer belt to paper Constant current DC bias applied roller method DC output range by constant current method 30 to 120 LA 14 2nd transfer roller L Toner transfer from the transfer belt to paper Provided on ADU side Pressure release mechanism by means of cam Driven idly by the transfer belt M18 Transfer belt motor Driving of the transfer belt DC brushless motor PLL control M19 1sttransfer pressure release Pressure release of the 1st transfer roller Y motor Stepping motor 501 Transfer belt separation claw Pressure release of the separation claw solenoid 24 VDC drive PS15 1st transfer HP sensor Pressure release mechanism of the 1st transfer roller Y M C K Home position detection PS68 Encoder sensor belt 1 Detection of the rotation of encoder for the transfer
21. 13 14 15 16 17 18 ADU conveyance clutch 2 MC1 2nd transfer section 2nd transfer pressure release motor M34 Intermediate conveyance roller 3 Intermediate conveyance clutch 3 MC5 Drive coupling Transfer belt Pressure arm 2nd transfer roller CF5001 Ver 1 0 Sep 2003 DRIVE SYSTEM DIAGRAM 5 8 4 Reverse paper exit drive E 2 2 8050ma1014 1 Reverse gate 4 Reverse exit roller 2 2 Reverse exit motor M33 5 gt roller 3 Reverse exit solenoid SD4 1 19 DRIVE SYSTEM DIAGRAM CF5001 Ver 1 0 Sep 2003 5 9 Main body paper exit drive LU E 2 el UJ W 3 8050ma1015 1 Reverse gate 4 Reverse exit roller 2 2 Drive coupling 5 Timing belt 3 Reverse exit motor M33 6 Paper exit roller CF5001 Ver 1 0 Sep 2003 DRIVE SYSTEM DIAGRAM 5 10 Scanner drive 2 M 5 1222 3 2 8050ma1016 1 Exposure unit 4 Scanner drive wire R 2 Scanner drive wire F 5 Scanner motor M1 3 V mirror unit 1 21 IMAGE CREATION PROCESS 6 IMAGE CREATION PROCESS CF5001 Ver 1 0 Sep 2003 N 6 1 Image creation flow and function 2 d Step Process Function 3 Step 1 Charging process Forms the layer of charges on the photosensitive drum m Step 2 Laser exposure process
22. 5 7 1 Paperfeed tray 1 to 3drive 1 14 5 7 2 Vertical conveyance drive 1 15 538 ADU drive dh v bI Ran tr LI E 1 16 5 8 1 By pass tray drive sv gay area Marek Nesna EE ERES 1 16 5 8 2 Registration drive loop 0 1 17 5 8 3 ADU conveyance 1 18 5 8 4 Reverse paper exit drive 1 1 19 5 9 Main body paper exit drive 1 20 10 Scanner drive avd ak ae kast es mask Re eg Sed Eee be ad BESLAG REM SAI eR ad 1 21 6 IMAGE CREATION PROCESS AEN ale dll RE eee ER ERE n 1 22 6 1 Image creation flow and function 1 22 6 2 Charging process Step 1 1 1 23 6 3 Laser exposure process Step 2 1 23 6 4 Developing process Step 3 1 24 6 5 dsttransfer process Step 4 1 25 6 6 2nd transfer process Step 5 1 26 6 7 Separation process Step 6 1 26 6 8 Drum cleaning Sub step 1 1 27 6 9 Pre charging exposure Sub step 2
23. Form an electrostatic latent image on the photosensitive drum Step 3 Developing process Makes an electrostatic latent image visible Step 4 1st transfer process Forms an image by synthesizing on the transfer belt a mono chrome visible image from each photosensitive drum Step 5 2nd transfer process Transfers an image on the transfer belt to paper Step 6 Separation process Separates paper from the transfer belt after completion of the transfer of the toner Sub step 1 Drum cleaning Removes toner adhered on the surface of the photosensitive drum after completion of the primary transfer Sub step 2 Pre charging exposure Removes residual potential on the surface against the photosen sitive drum after completion of drum cleaning Sub step 3 Transfer belt cleaning Removes toner adhered on the surface of the transfer belt after completion of the 2nd transfer Sub step 4 2nd transfer roller L Remove toner adhered on the 2nd transfer roller L after comple cleaning tion of the 2nd transfer Sub step 5 Toner collection Collects toner that has been removed through the drum cleaning and the transfer belt cleaning Not shown in the drawing below nA NES 242 Step 3 Sub step 3 2 12 Gs Step 4 Step 1 Sub step 1 10 Sub step 2 Pr Step NI 5 BIN p 7 8050ma1017 1 Developing unit 7 Separation neutralizing section 2 Write unit 8 2nd transfer roller U 3 Charging corona 9 Transfer belt 4
24. Pick up solenoid BP Transmission of the by pass tray paper feed power 2 43 2 Q lt 2 a gt lt E z 2 BY PASS FEED CF5001 Ver 1 0 Sep 2003 9 2 Operation 9 2 1 Tray up drive control When Pick up solenoid BP SD5 turns on after the paper feed motor M41 turns on the up down plate is raised with paper going up When pulling out ADU coupling comes off the drive section and the up down plate comes down by its own weight 9 2 2 Paper feed control Paper feed motor M41 Pick up solenoid BP SD5 z Q z lt EI X 2 Paper feed clutch BP MC6 By pass conveyance sensor PS26 8050ma2021 1 START button ON 9 2 3 Paper size detection control The paper size in the by pass tray is detected along the length by the paper size SBP PS48 and the paper size LBP PS49 and along the width by the paper size VR BP VR4 2 44 CF5001 Ver 1 0 Sep 2003 VERTICAL CONVEYANCE 10 VERTICAL CONVEYANCE 10 1 Composition 1 Dee N Ed 2 lt 2 a gt lt E z 2 PS50 H PS51 8050ma2050 Symbol Name Function or method 1 Vertical conveyance door Cleaning paper jam in the vertical conveyance section 2 Intermediate conveyance roller 1 Paper conveyance of the trays 2 and 3 M41 Paper feed motor See 8 Paper feed tray 1 to 3 MC13 Intermediate conveyance
25. SAFETY AND IMPORTANT WARNING ITEMS SAFETY AND IMPORTANT WARNING ITEMS Read carefully the Safety and Important Warning Items described below to understand them before doing ser vice work IMPORTANT NOTICE Because of possible hazards to an inexperienced person servicing this copier as well as the risk of damage to the copier Minolta Corporation strongly recommends that all servicing be performed only by Minolta trained ser vice technicians Changes may have been made to this copier to improve its performance after this Service manual was printed Accordingly Minolta Corporation does not warrant either explicitly or implicitly that the information contained in this Service manual is complete and accurate The user of this Service manual must assume all risks of personal injury and or damage to the copier while ser vicing the copier for which this Service manual is intended Therefore this Service manual must be carefully read before doing service work both in the course of technical training and even after that for performing maintenance and control of the copier properly Keep this Service manual also for future service DESCRIPTION ITEMS FOR DANGER WARNING AND CAUTION In this Service manual each of three expressions AN DANGER A WARNING and NCAUTION is defined as follows together with symbol mark to be used in limited meaning When servicing the copier the relevant works disassembling reassembling adju
26. The process to remove toner 15 referred to as transfer belt cleaning A transfer belt cleaning is made scraping toner adhered to the drum surface with the edge of a plate called a blade that is made of urethane rubber E 2 el 31 1 N p O s 2 8050ma1026 1 Transfer belt 3 Cleaning blade 2 Residual toner 6 11 2nd transfer roller L cleaning Sub step 4 Residual toner on the transfer belt is in direct contact with the 2nd transfer roller L As a result the 2nd transfer roller L may be coated with toner So the 2nd transfer roller U is applied with a positive and a negative high DC bias voltage alternately to move toner on the 2nd transfer roller L to the transfer belt side The toner on the transfer belt that has been moved is cleaned by the transfer belt cleaning mentioned above 5 21 HI 8050 1027 1 Transfer belt 4 DC bias positive applied 2 2nd transfer roller L 5 DC bias negative applied 3 2nd transfer roller U 1 28 CF5001 Ver 1 0 Sep 2003 IMAGE CREATION PROCESS 6 12 Toner collection Sub step 5 Toner that was cleaned in the drum cleaning section and the transfer belt cleaning section is collected into the toner collection box through the toner collection screw E 2 O 8050 1028 1 Toner collection box 4 Drum M toner collection opening 2 Transfer belt toner
27. the fixing temperature sensor 1 TH1 and the fixing temperature sensor 3 detect the temperature of the fixing roller U and control it by turning on and off L2 and L3 through the AC drive board ACDB so that it is held at the specified temperature In the same way the fixing temperature sensor 2 TH2 and the fixing temperature sensor 4 TH4 detect the temperature of the fixing roller L to turn on and off L4 z Q lt z lt EI X 2 A Warm up The moment the main switch SW2 turns on the lighting circuits of the fixing upper lamps 1 and 2 L2 13 and the fixing lower lamp 2 14 inside the AC drive board ACDB turn 12 L3 and 14 are kept on until a specified temperature is obtained After completion of warming up the printer control board PRCB controls the L2 L3 and L4 so that the set temperature is maintained while in idling At this time L2 L3 and L4 are not turned on simultaneously Warm up time 420 sec or less in Metric 390 sec or less in Inch at room temperature of 20 C B Protection against abnormality Thermostats are employed to protect the fixing roller against its abnormal temperature rise The fixing roller U is provided with thermostat 1 TS1 and the fixing roller L is provided with thermostat 2 TS2 respectively When TS1 detects an abnormal temperature the flow of electricity to the fixing upper lamp 1 L2 and the fixing upper lamp 2 L3 is shut of
28. 2 lt X E zZ 2 m Reverse exit solenoid 504 Fixing exit sensor PS17 Reverse exit sensor PS19 Paper exit sensor PS13 1 START button ON 3 1st paper exit 2 Completion of the first sheet fixing 2 51 REGISTRATION ADU REVERSE PAPER EXIT CF5001 Ver 1 0 Sep 2003 D ADU conveyance operation double sided 2 copies Paper feed motor M41 Registration roller motor M30 Fixing motor M29 Reverse exit motor M33 2 4 2 lt x E 2 2 Reverse exit solenoid SD4 Fixing exit sensor PS17 Reverse exit sensor PS19 Paper exit sensor PS13 1 START button ON 3 Completion of the back side fixing of 1st paper 2 Completion of the front side fixing of 1st paper 4 1st paper exit 2 52 CF5001 1 0 Sep 2003 REGISTRATION ADU REVERSE PAPER EXIT 11 2 2 Reverse exit control A Reverse exit path The reverse exit path is applicable to the face down paper exit after completion of copy in the single side copy mode as well as after completion of the back side copy in the double sided copy mode D Double sided copy mode 2 Face down 7 8 9 2 lt 2 gt lt E E 2 5 8050ma2027
29. K are pressed However in the black and white mode only the 1st transfer roller K is pressed The release condition is detected by the 1st transfer HP sensor PS15 The cam drive position which var ies with the copy mode is controlled by the drive amount of the M19 which starts when the PS15 turns off z z lt gt lt 2 2 8050ma2016 1 When totally released 10 Drum 2 When in the black and white mode 11 Drum JC 3 When in the full color mode 12 Drum K 4 1sttransfer roller K pressure release arm 13 1st transfer roller K 5 Drive coupling 14 1st transfer roller C 6 1sttransfer roller K pressure release cam 15 1st transfer pressure release motor M19 7 1st transfer roller C pressure release cam 16 Color 1st transfer roller assembly 8 Drum Y 17 1st transfer roller M 9 Transfer belt 18 1st transfer roller Y CF5001 Ver 1 0 Sep 2003 5 2 2 Image correction unit A Composition TRANSFER BELT UNIT 8050ma2017 Symbol Name Function or method 1 Gamma sensor shutter solenoid SD3 Open close of the image density sensor shutter 24 VDC drive 2 Color registration shutter solenoid 502 Open close of the color registration sensor shutters F and R 24 VDC drive 3 Gamma sensor shutter Prevention of contamination of the Dmax sensor PS10 and the Gamma sensor PS11 Open close method
30. RADF Right rear side of the Main body Inside of the LCT CAUTION A ATTENTION CG A PRECAUCION A CUIDADO kr ACAUTION AA ATTENTION AVORSICHT AC A PRECAUCION A 184 i A ATTENZIONE PE 7 ut CAUTION DO NOT throw the toner wen recovery box into fire If it is thrown into a fire the To avoid any unexpected injury DO NOT put your hand 8050sf004e into the holes 3 places on the bottom plate of the LCT toner may ignite and cause a dangerous situation NCAUTION Please adhere to all caution labels to avoid burns or injury 5 14 SAFETY AND IMPORTANT WARNING ITEMS Finisher with Cover Inserter D Cover Sheet Feeder only ACAUTION ATTENTION A dl E SS 229 A ATTENTION fa voRSICHT CH mamen ssen IS n NS zb PRECAUCION PRECAUCION s a PRECAUCION PRECAUCION X namens gt EN p A ATTENZIONE acuoaoo fane ACUIDADO 1 LF 4 71 gd To avoid injury DO put your hand on top of the printed sheets Be sure to hold both sides of the printed sheets when removing them and DO NOT leave your hand on the printed sheets while the primary main tray goes up AA CAUTION DO NOT insert y
31. UNES Weg iu eb PAIS 2 13 221 IMAGE writing ecd red epe dnt d eh 2 13 2 2 2 Color registration correction 2 13 3 DRUM UNIT 14 82 reor reto Rh eee Du Rede se debeo ee oe ER tyr IEEE aad a ERU 2 19 31 COMPOSITION cu sad E Gere Rabe ERR outs 2 19 3 2 Operation i ee me IERI puse eoi pe ER DR E E tea 2 23 3 2 1 Image formation 0 2 23 4 DEVELOPING UNIT 4 5 xs S RNET STE TREE EE LITT FE Ps IS JE a ees 2 24 4 1 COfmpositlOm s ung ser Nesna EE 2 24 4 2 Operation ed co deae teca tala ales x ate ete A 2 26 4 2 1 2 26 422 Developing control ax ss dn o RR Se eae EE ea RR 2 26 4 2 8 Toner supply control to the developing 2 26 424 Developing bias control 2 27 4 2 5 Durability of the 2 27 5 TRANSFER BELT UNIT Li sa safe ded Ge ae Rete ES 2 28 5 1 COMPOSITION EE 2 28 5 2 Operation osuere ft res ak baade eter ende ase eid ts 2 30 5 2 4 Transfer belt pressure release mechanism 2 30 5 22 Image co
32. and the heated fixing roller L pressed together and is fixed with toner The pressure of the fixing roller is released at idling A Fixing drive operation The driving force of the fixing roller M29 1 is transmitted through the gear to the fixing roller 2 and the fixing paper exit roller 3 There is a one way clutch 4 provided between M29 and fixing roller U and the transmission of driving force when M29 rotates in the normal direction is limited only to the fixing roller U and the fixing paper exit roller The same shaft of the one way clutch 4 is provided with another one way clutch 5 which is a transmis sion to the pressure release drive cam mechanism 6 The one way clutches 4 and 5 operate one way in the opposite direction of each other z lt z lt ESI gt lt Z 2 5 4 8050ma2044 2 62 CF5001 Ver 1 0 Sep 2003 FIXING UNIT 12 2 2 Pressure release control The pressure of the fixing roller L onto the fixing roller U is made by the reverse rotation of the fixing motor M29 and the cam mechanism Pressure release operation When the fixing motor M29 1 rotates in the reverse direction the cam mechanism applies pressure broken line in the drawing onto the fixing roller L 3 There is a one way clutch 4 provided between M29 and the cam mechanism to provide the transmission of driving force when M29 is rotating reversely this force is limited onl
33. belt 4 Toner Y 1 25 5 6 7 8 Charge negative Drum M 1st transfer roller M Toner M E 2 IMAGE CREATION PROCESS CF5001 Ver 1 0 Sep 2003 6 6 2nd transfer process Step 5 The operation to transfer the toner image of the four colors on the transfer belt to paper is referred to as the 2nd transfer While in the 2nd transfer the 2nd transfer roller L provided at the lower section of the transfer belt conveys paper while pressing it against the transfer belt At this time the 2nd transfer roller U pro vided at the rear of the transfer belt is applied with a high DC bias voltage negative Toner on the transfer belt is shifted toward the paper by the electric field formed between the 2nd transfer roller U and the 2nd transfer roller L E 2 el 8050ma1022 1 Transfer belt 3 2nd transfer roller L 2 Paper 4 2nd transfer roller U 6 7 Separation process Step 6 While in the 2nd transfer paper in the process of transfer is negatively charged by the 2nd transfer roller U resulting in an adsorption phenomenon where paper is attracted to the transfer belt This operation to peel paper that is thus adsorbed off the transfer belt is referred to as separation Separation is made by applying high AC and DC bias voltages to the separation neutralizing section As a result the charges of the paper and the transfer belt are neutralized 1 e p
34. clutch 1 Transmission of driving force from the paper feed motor M41 to the intermediate conveyance roller 1 24 VDC drive PS50 Vertical conveyance sensor Paper detection in the vertical conveyance section PS51 Vertical conveyance door sensor Open close detection of the vertical conveyance door 10 2 Operation 10 2 1 Vertical conveyance control For operation timing of the vertical conveyance control see 8 Paper feed tray 1 to 3 2 45 z z lt ESI gt z 2 REGISTRATION ADU REVERSE PAPER EXIT CF5001 Ver 1 0 Sep 2003 11 REGISTRATION ADU REVERSE PAPER EXIT 11 1 Composition emm PS24 4 PS13 5 6 7 8 9 10 11 21 PS12 tsi er 77 LI B E T L Kl Las PS19 id LI LI SE LAN ER Se RR NN a LI B A A B NM m LI L a 3 PS20 LI B A E LI B LI A a LI LI A A x MOM ON ON m mm mmmmm LI L a E LET I LITT LET I ola mm ala ola lt lt mim CVDB 5a d PRCB 5 8050ma2022 Symbol Name Function or method 1 ADU conveyance roller 2 Paper conveyance while in the double side copy mode and loop formation for the c
35. in 36 mode 1 relationship between 2 colors are shown in the interests of simplicity 2 In drift in the main scan direction Entire horizontal magnification and Partial horizontal magnifica tion colors are intentionally drifted in the sub scan direction to make it clear the drift between 2 colors B Overview of the color registration automatic correction control In the color registration automatic correction control the color registration marks for each color are trans ferred on the transfer belt in the different transfer area The locations are detected by the color registration sensor PS8 and the color registration sensor R PS9 This information is used to determine the image drift amount for each color If the amount for a color is beyond the set point adjust the image write timing the clock frequency and the angle of the cylindrical lens 2 for the corresponding color are adjusted as necessary 2 14 CF5001 1 0 Sep 2003 WRITE 2 Q lt 2 gt lt E z 2 8050ma2055 Drum Y 8 Write unit K 2 Write unit Y 9 Transfer belt 3 Drum AM 10 Direction of image 4 Write unit M 11 Color registration sensor F PS8 5 Drum C 12 Color registration sensor R PS9 6 Write unit C 13 Data processing 7 Drum K WRITE CF5001 Ver 1 0 Sep 2003 C Procedure for the color registration automatic correction control operation
36. include the drum potential sensor boards Y M C and K DRPSB Y M and drum potential sensor Y M C and K DRPS Y M and and the temperature humid ity sensor TEMP HUM A Explanation of the operation The gradation patch is created on the transfer belt and read by the gamma sensor PS11 The correction value for the gamma curve is determined by the sensor output value with the predefined relationship between the sensor output and the output image B Timing of the operation e When the main switch SW is turned on for the first time in 6 hours or more after it was turned off e When the job starts 6 hours or more after the SW2 has been turned on e Every 1 000 pages of output However at the time of completion of the job when the 1 000th page is contained in the job e When the humidity has changed more than 30 RH from the value measured at the last operation e When the job starts where the process speed gets slow down to 1 2 or 1 3 speed However once operated under this condition after the SW2 turns on the operation is not carried out again until the SW2 turns off CF5001 1 0 Sep 2003 15 OTHER CONTROLS OTHER CONTROLS 15 1 Parts to which power is supplied even when the reset switch is turned off CBR1 SW1 TT CBR2 8050ma2038 Regardless of the on off position of the reset switch SW1 the following components are supplied with power
37. process Step 3 In the electrostatic latent image on the photosensitive drum the non image section is negatively charged and the image section is neutralized When toner that is negatively charged is brought close to the photo sensitivity drum toner is attracted to the image section on the drum by the potential difference with the developing bias and becomes visible This process is called developing LU Z E 2 el 2 3 4 8050ma1020 1 Drum 3 Toner negative 2 Charge negative 4 Developing sleeve CF5001 Ver 1 0 Sep 2003 6 5 1st transfer process Step 4 IMAGE CREATION PROCESS Toner on each drum of Y M C and K is transferred onto the transfer belt this allows for overlapping of the colors This movement of toner from the drum to the transfer belt is referred to as the 1st transfer where the transfer of toner is carried out sequentially in the order of Y M C and K While in the 1st transfer the 1st transfer roller provided at the rear of the transfer belt is applied with a high DC bias voltage positive As a result a positive potential on the surface of the transfer belt is higher than that of the surface of each drum and toner moves from the drum to the transfer belt 3 8050ma1021 Drum Y 2 1sttransfer roller Y 3 Transfer
38. supplied High voltage applied to prevent toner adhesion 500 V 50 V constant voltage 13 Pressure arm 2nd transfer roller L pressure release Motor drive 14 Registration roller For paper conveyance in the registration section and the cor rection of paper skew caused by the paper stopper Motor drive 15 Registration cleaning sheet Cleaning of the registration roller PET method 16 Loop roller For paper conveyance in the registration section and loop for mation while in paper skew correction Motor drive 17 ADU pre registration roller For paper conveyance while in the double side copy mode and the correction of paper skew correction caused by the paper stopper Motor drive 18 Intermediate conveyance roller 3 Paper conveyance from the paper feed trays 1 to 3 the by pass tray and LCT Motor drive 19 By pass tray By pass paper feed See 9 By pass feed section 20 Intermediate conveyance roller 2 Paper conveyance from the paper feed trays 1 to 3 and LCT Motor drive 21 ADU lock solenoid SD6 ADU lock 24 VDC drive HV2 High voltage unit 2 Supply of high voltage to the separation discharge plate unit and the pre transfer guide plate Pressure rise method by the inverter from 24 VDC 2 47 2 Q lt 2 gt lt E 2 2 z Q 2 4 d X E 2 2 REGIST
39. the drum potential sensor and the MPC value for the laser is corrected to be within the standard value B Timing of the operation e When the main switch SW is turned on for the first time in 6 hours or more after it was turned off e When the job starts 6 hours or more after the SW2 has been turned on e Every 1 000 pages of output However at the time of completion of the job when the 1 000th page is contained in the job e When the humidity has changed more than 30 RH from the value measured at the last operation e When the job starts where the process speed gets slow down to 1 2 or 1 3 speed However once operated under this condition after the SW2 turns on the operation is not carried out under this condi tion until the SW2 turns off z Q lt z lt EI X 2 14 5 Gamma correction control The gamma correction control detects the gamma characteristics of the image density against the expo sure amount in the image creation section drum and transfer belt for each color to make the relationship between the original density and the copy density become the set one The gamma correction control is carried out by the gamma sensor PS11 drum motors Y M C and K M14 M15 M16 and M17 transfer belt motor m18 1st transfer pressure release motor M19 and the developing motors Y M C and K M20 M21 M22 and M23 and controlled by the printer control board PRCB Related boards and sensors
40. 0ma2009 1 1st original size detection 2 2nd original size detection main scan direction sub scan direction main scan direction 2 8 CF5001 1 0 Sep 2003 SCANNER 1 2 6 AE control The sensor installed on the A D converter board ADB reads the copy density during the AE scan it performs the process responsive to the read density on the overall control board and then it selects the most favorable correction curve The CPU on the image processing board IPB performs the selection A AE ACS sampling range The AE ACS sampling range is identical to the read range in both the platen mode and the DF mode Y F 1 2 Q lt 2 lt X E zZ 2 Sin 1 1 8050ma2054 1 10mm 2 AE ACS sampling range 1 2 7 Image processing A AOC automatic offset control With the circuit in the CCD sensor AOC automatically adjusts the analog offset voltage from the sensor to be the lower limit of the A D converter B AGC automatic gain control GC automatically controls the level of the analog amplification of the CCD sensor output at the shading white correction to be the higher limit for the A D converter C Shading correction 1 Types of the shading correction e White correction e Black correction 2 Execution timing e main switch SW2 e start of scan job 2 9 SCANNER CF5001 Ver 1 0 Sep 2003 D Other imag
41. 2 8 Remaining paper detection 2 41 8 24 Paper size detection contra 2 42 9 BY PASS FEED eid Sia dd READER M deco crise dine OS 2 43 COMPOSITION sre Bep RI eiua VR yh NE ES eod 2 43 92 EE EE 2 44 9 2 1 Tray up drive control 2 44 922 Paperfeed control oe eed iad Wb p ask REB De 2 44 9 2 3 Paper size detection 2 44 10 VERTICAL CONVEYANCE 1 2 45 10 1 Composition nevn slake danene edda nd die ee ea 2 45 10 27 Operation sac hire ee one a eee E e ed DUMP ea ee 2 45 10 2 1 Vertical conveyance 2 45 11 REGISTRATION ADU REVERSE PAPER EXIT 2 46 11 21 Composition sat feet tA Sein se eed Sek ae AES 2 46 11 2 Operation incid oae Meaty edie Sree Beaks Ostet aa ash EE ANLE EE ar 2 49 11 2 1 Switching control of the paper exit ADU conveyance 2 49 11 2 2 Reverse exit contra 2 53 11 2 8 ADU conveyance 2 54 11 2 4 Paper reverse
42. 39 Paper size S2 Detection of the paper size along the length of the tray 2 2 39 2 Q lt z gt lt E Z D PAPER FEED TRAY 1 TO 3 CF5001 1 0 Sep 2003 Symbol Name Function or method 540 Paper size L2 Detection of the paper size along the length of the tray 2 PS41 Pre registration sensor 3 Detection of paper conveyance at the pre registration roller 3 entrance PS42 Tray upper limit sensor 3 Detection of the upper limit of the tray 3 paper 543 No paper sensor 3 Detection of the presence of the tray 3 paper PS44 Remaining paper sensor 3 Detection of the remaining paper in the tray 3 PS45 Paper size S3 Detection of the paper size along the length of the tray 3 PS46 Paper size L3 Detection of the paper size along the length of the tray 3 VR1 Paper size VR 1 Detection of the paper size along the width of the tray 1 VR2 Paper size VR 2 Detection of the paper size along the width of the tray 2 VR3 Paper size VR 3 Detection of the paper size along the width of the tray 3 8 2 Operation Since the composition and the operation of the paper feed trays 1 to 3 are the same the explanation is given of the paper feed tray 1 only The paper feed trays 2 and 3 are the same as the paper feed tray 1 The intermediate conveyance sensor 1 PS27 and the intermediate conveyance clutch 1 MC13 are not used in the paper feed con
43. GE STABILIZATION CONTROL 14 3 Charging potential control 14 3 1 Correction of the reference value The purpose of this control is to set the charging potential for each color to the reference level The charging potential control is carried out by the drum potential sensors Y M C and K DRPS Y M C and K drum potential sensor boards Y M C and K DRPSB Y M C and K drum motors Y M C and K M14 M15 M16 and M17 and the developing motors Y M C and K M20 M21 M22 and M23 and controlled by the printer control board PRCB Related sensors include the temperature humidity sensor TEMP HUM A Explanation of the operation Based on the DC bias value determined by the Dmax control the grid voltage is corrected by using an out put value read from the drum potential sensor so that the value becomes charging potential shifted by the specified value from this DC bias value B Timing of the operation e When the main switch SW2 is turned on for the first time in 6 hours or more after it was turned off e When the job starts 6 hours or more after the SW2 has been turned on e Every 1 000 pages of output However at the time of completion of the job when the 1 000th page is contained in the job e When the humidity has changed more than 30 RH from the value measured at the last operation e When the job starts where the process speed is slowed down to 1 2 or 1 3 speed However once operated under this conditi
44. L detection method per meability detection of the developer to detect the toner density of the developer A value thus obtained is compared with the reference value of the toner density stored in the CPU on the printer control board PRCB to check to see if the toner needs to be supplied For toner supply operation see 6 Toner sup ply CF5001 Ver 1 0 Sep 2003 DEVELOPING UNIT 4 2 4 Developing bias control A Control path The developing bias Y M C and K are supplied from the high voltage unit 1 HV1 and controlled by the printer control board PRCB Each developing bias is supplied with AC DC to secure the uniformity of developing 4 2 5 Durability of the developer A Concept of the durability of the developer The durability deterioration of the developer depends on the developing sleeve drive distance the mov ing distance of the developing sleeve surface in the developing unit The developing sleeve drive distance includes the distance at idle time the time when the developing sleeve does not perform the developing operation but rotates and the job output pattern has a significant effect on it The idle time has a significant effect on the drive distance in such cases as followings e Continuous copy count in a job the rate of the idle time increases if the continuous copy count is small e Switching the processing speed in a job There is the idle time at switching the processing speed e Switching mode in AC
45. OGIES INC 7661 4969 11 0309xxxx
46. PSB M Controls the drum potential sensor M DRPS M 3 Drum potential sensor board DRPSB C Controls the drum potential sensor C DRPS C 4 Drum potential sensor board K DRPSBK Controls the drum potential sensor K DRPS K 5 Developing unit Y Deposits yellow toner to the transfer image on the drum Y See 4 Developing unit 6 Developing unit M Deposits magenta toner to the transfer image on the drum M See 4 Developing unit 7 Developing unit C Deposits cyan toner to the transfer image on the drum C See 4 Developing unit 8 Developing unit K Deposits black toner to the transfer image on the drum K See 4 Developing unit 9 Charging Y Forms a charging potential on the surface of the drum Y DC corona discharge Scotron Wire discharge gold plated tungsten wire 30um Constant current method DC output range 450 to 1100 Grid bias changing control plate Constant voltage method DC output range 200 to 850V 2 19 2 Q lt z lt a gt lt E pa 2 z Q 2 4 d X 2 DRUM UNIT CF5001 Ver 1 0 Sep 2003 Symbol Name Function or method 10 Charging M Forms a charging potential on the surface of the drum M DC corona discharge Scotron Wire discharge gold plated tungsten wire 30um Constant current method DC output range 450 to 1100uA Grid bias changing control plate Constant voltage method DC output r
47. RATION ADU REVERSE PAPER EXIT CF5001 Ver 1 0 Sep 2003 Symbol Name Function or method M30 Registration roller motor Registration roller drive Stepping motor M31 Loop roller motor Loop roller drive Stepping motor M32 ADU reverse motor ADU reverse roller drive Stepping motor M33 Reverse exit motor Driving of the paper exit roller decurler roller and the reverse exit roller 2 Stepping motor M34 2nd transfer pressure release motor Pressure arm drive Stepping motor M41 Paper feed motor M41 Paper feed motor Driving of ADU conveyance rollers 1 and 2 ADU pre registration roller and the intermediate conveyance rollers 2 and 3 DC brush less motor MC1 ADU conveyance clutch 2 Transmission of driving force from the paper feed motor M41 to the ADU conveyance roller 2 24 VDC drive MC2 ADU conveyance clutch 1 Transmission of driving force from the paper feed motor M41 to the ADU conveyance roller 1 24 VDC drive MC3 ADU pre registration clutch Transmission of driving force from the paper feed motor M41 to the ADU pre registration roller 24 VDC drive MC4 Intermediate conveyance clutch 2 Transmission of driving force from the paper feed motor M41 to the intermediate conveyance roller 2 24 VDC drive MC5 Intermediate conveyance clutch 3 Transmission of driving force from the paper feed motor M41 to the inte
48. RS DE AVATTAESSA OLET ALTTIINA EEE L OUVERTURE NAKYVALLE LASERSATEILYLLE esr tries eie EVITER L EXPOSITION DIRECTE KATSO SATEESEEN E ADVARSEL BA SYNLIG LASERSTRALING VED quill sie ga 5 Bol 55 Sat A SE UNDG UDS TTELSE FOR STR LING ALS pilli g m 8050sf006e NCAUTION Please adhere to all caution labels to avoid burns or injury 5 16 SAFETY AND IMPORTANT WARNING ITEMS VORSICHT LASERSTRAHLUNG BEIM ENTNEHMEN DER PROZESSOREINHEIT DANGER DANGER 3 VISIBLE LASER RADIATION WHEN RAYON LASER VISIBLE AU RETRAIT PROCESS UNIT IS WITHDRAWN DE L UNITE DE TRAITEMENT IMAGE AVOID DIRECT EXPOSURE TO BEAM EVITER L EXPOSITION DIRECTE A SPETS ei ALA SEA ue 3 ias aie Gi ye id E ledd NICHT DEM STRAHL AUSSETZEN of AAO Be HAS o Al AN gt 8050sf007e N CAUTION Please adhere to all caution labels to avoid burns or injury S 17 SAFETY AND IMPORTANT WARNING ITEMS gt PS lt A 8050sf008e NCAUTION Please adhere to all caution labels to avoid burns or injury 5 18 CF5001 Ver 1 0 Sep 2003 OUTLINE OF SYSTEM I OUTLINE 1 OUTLINE OF SYSTEM 2 8050 1001 1 Main body B Trimmer TMG 3 2 LCT C 208
49. S There is the idle time at switching between the color mode and the black and white mode The color mode operation of the black and white original in ACS There is the idle time for the color developing sleeves when the black and white original is printed in the color mode e Double sided operation The operation is circulated in set of 4 sheets if the paper size is A4 If the copy count is not an integral multiple of 4 for example if it is 9 only 1 sheet is circulated for the operation the idle time is increased The relationship between the drive distance and actual copy print count is affected by those output pat terns and it is hard to be defined The count could be significantly different even if the drive distance is same 2 Q 2 4 gt lt 2 2 B Specification of the durability of the developer The durability of the drive distance for all color is specified as below Durability 83 000km color As described in the previous section the relationship between the drive distance and actual copy print count is hard to be defined however 83 000km of drive distance corresponds to 100 000 copies prints if 5 sheets are printed intermittently in the A4 single sided copy mode as defined for the maintenance 2 27 z lt z lt ESI gt lt z 2 TRANSFER BELT UNIT 5 TRANSFER BELT UNIT 51 Composition CF5001 1 0 Sep 2003 14 5 4 8050
50. T 11 2 6 Registration control CF5001 Ver 1 0 Sep 2003 Paper conveyed to the loop roller is formed into a loop between the registration roller and the loop roller and paper skew is corrected A Registration path a a br 1 8050ma2034 1 Intermediate conveyance roller 2 5 2 Loop roller 6 3 Registration loop 7 4 Registration roller 8 B Registration operation Paper feed motor M41 Registration roller motor M30 2nd transfer roller Transfer belt unit Registration sensor PS22 Intermediate conveyance sensor 2 PS28 Loop roller motor M31 Intermediate conveyance sensor 2 PS28 Registration sensor PS22 1 START button ON 3 2 1st paper Registration loop 2 58 3 8050ma2035 2nd paper Registration loop CF5001 1 0 Sep 2003 REGISTRATION ADU REVERSE PAPER EXIT 11 2 7 2nd transfer control The paper that has been conveyed from the registration roller undergoes the 2nd transfer by the pressure of the 2nd transfer roller L on the transfer belt A 2ndtransfer roller L pressure release mechanism 2 lt 2 a gt lt E z 2 8050ma2036 1 Release 4 Cam 2 Pressure 5 Pressure arm 3 Transfer belt unit 6 2nd transfer roller L B 2ndtransfer roller L pressure release operation For timi
51. a 5 ubi NM z 21 3 41 5 8050ma2031 1 START button ON 4 Start of 2nd paper conveyance 2 Start of 1st paper conveyance b Start of reverse operation of 2nd paper 3 Start of reverse operation of 1st paper 2 56 CF5001 1 0 Sep 2003 REGISTRATION ADU REVERSE PAPER EXIT 11 2 5 ADU pre registration control The paper conveyed from the ADU switchback section is formed into loop between the ADU conveyance roller 2 and the ADU pre registration roller and paper skew is corrected A ADU pre registration path z Q lt LJ LK 2 T S x M E E 5 1 8050ma2032 1 ADU pre registration loop 4 ADU pre registration roller 2 ADU conveyance roller 2 5 Loop roller 3 ADU pre registration sensor PS23 B ADU pre registration operation Paper feed motor M41 Registration roller motor M30 ADU pre registration clutch MC3 ADU conveyance clutch 2 MC1 Registration sensor PS22 ADU conveyance sensor PS20 ADU pre registration sensor PS23 V TOP 1 START button ON 3 2nd paper ADU pre registration loop 2 1st paper ADU pre registration loop 2 57 z z lt ESI gt lt z 2 REGISTRATION ADU REVERSE PAPER EXI
52. akes the laser scan speed uniform against the laser expo sure surface on the drum 25 Cylindrical lens 2 Corrects the laser path against the angle error in the polygon mirror 26 Index mirror Reflects the laser light to the index sensor boards Y M C K INDX SB Y M C K 27 Laser drive board Y LDB Y Laser light write unit Y 1 chip 1 beam method 7 mW 650 nm 28 Laser drive board M LDB M Laser light write unit M 1 chip 1 beam method 7 mW 650 nm 29 Laser drive board C LDB C Laser light write unit C 1 chip 1 beam method 7 mW 650 nm 30 Laser drive board K LDB K Laser light write unit K 1 chip 1 beam method 7 mW 650 nm 31 Collimator lens Collimates the diffusing laser light q It is not installed on the write unit K CF5001 1 0 Sep 2003 WRITE 2 2 Operation 2 2 1 Image writing The RGB image data from the CCD sensor is converted into digital data individually in the A D converter board ADB and then it is sent to the overall control board OACB The OACB converts RGB signals to YMCK signals with the image processing board IPB The converted YMCK signals are divided to the laser drive board Y M C K LDB Y M C K by the IPB They are written on the drums for each color with laser light from the each laser drive board 2 Q lt 2 gt lt E Z 2 8050ma2065 1 Laser light 3 Drum 2 Polygon mirror 2 2 20 Color reg
53. ange 200 to 950V 11 Charging C Forms a charging potential on the surface of the drum C DC corona discharge Scotron Wire discharge gold plated tungsten wire 30um Constant current method DC output range 450 to 1100uA Grid bias changing control plate Constant voltage method DC output range 200 to 950V 12 Charging K Forms a charging potential on the surface of the drum K DC corona discharge Scotron Wire discharge gold plated tungsten wire 304m Constant current method DC output range 450 to 1100uA Grid bias changing control plate Constant voltage method DC output range 200 to 950V 13 Pre charging exposure lamp Y Lowers and uniforms the drum Y surface potential PCL Y LED 14 Pre charging exposure lamp M Lowers and uniforms the drum M surface potential PCL M LED 15 Pre charging exposure lamp C Lowers and uniforms the drum C surface potential PCL C LED 16 Pre charging exposure lamp K Lowers and uniforms the drum K surface potential PCL K LED 17 Cleaning blade Cleans the drum Drum contacting separation method 18 Toner collection screw Conveys toner from the cleaning section to the toner collection section Screw method 19 Grease Assists the drum cleaning ability Zinc stearate rod 20 Grease applying brush roller Applies grease to the drum surface Drum contacting application method by brush 21 Transfer belt unit YMCK synthe
54. belt drive shaft Drive control of the transfer belt motor M18 2 sensors of the PS68 and PS69 are provided at the opposite position of the encoder to cancel the change of rotation caused by the eccentricity of the encoder PS69 Encoder sensor belt 2 Detection of the rotation of encoder for the transfer belt drive shaft Drive control of the transfer belt motor M18 2 sensors of the PS68 and PS69 are provided at the opposite position of the encoder to cancel the change of rotation caused by the eccentricity of the encoder 2 29 2 Q lt z ES gt lt E E 2 TRANSFER BELT UNIT CF5001 Ver 1 0 Sep 2003 5 2 Operation 5 2 1 Transfer belt pressure release mechanism The 1st transfer roller that presses the transfer belt against the drum is made up of the 1st transfer rollers Y M and C for the drums Y M and C and the 1st transfer roller K for the drum K The 3 1st transfer roll ers Y M and C of these rollers operate as a unit color 1st transfer roller assembly When the 1st transfer is made from the drum to the transfer belt the color 1st transfer roller assembly and the 1st transfer roller K push out the transfer belt from the inside and press it against the drum by means of the cam that is driven by the 1st transfer pressure release motor M19 The form of pressure varies with the copy mode In the full color mode both of the color 1st transfer roller assembly and the 1st transfer roller
55. by means of the image density sensor shutter solenoid 503 4 Gamma sensor PS11 Detection of the maximum density and the gamma characteris tics of the patch image on the transfer belt 5 Color registration sensor F PS8 Detection of the transfer image position on the front side in the direction of the main scan 6 Color registration sensor shutter F Prevention of contamination of the color registration sensor F PS9 7 Color registration sensor shutter R Prevention of contamination of the color registration sensor R PS9 8 Color registration sensor R PS9 Detection of the transfer image position on the rear side in the direction of the main scan B Shutter mechanism The image correction unit is provided with a shutter mechanism that allows the sensor to be exposed only when necessary to prevent the contamination of various types of sensors The color registration sensor shutters F and R that protect the color registration sensors F and R PS8 and PS9 are opened and closed by the color registration shutter solenoid SD2 And also the image den sity sensor shutter that protects the gamma sensor PS11 is opened and closed by the image density sensor shutter solenoid SD3 2 31 2 lt 2 gt lt E z 2 TRANSFER BELT UNIT CF5001 Ver 1 0 Sep 2003 5 2 3 ist transfer control Toner on the drum is transferred onto the transfer belt side by bias value applied on the 1
56. collection opening 5 Drum C toner collection opening 3 Drum Y toner collection opening 6 Drum K toner collection opening 6 13 Process speed In combination of the weighing of paper and the surface finish of an output image this machine provides three types of process speeds Weighing Without gloss With gloss 64 to 105 g m 220 mm s 110 mm s 1 2 speed 106 to 256 g m 110 mm s 1 2 speed 73 3 mm s 1 3 speed 1 If paper is coated paper the speed will be 110 mm s 1 29 IMAGE CREATION PROCESS CF5001 Ver 1 0 Sep 2003 LU Z 2 el 1 30 CF5001 Ver 1 0 Sep 2003 SCANNER ll UNIT EXPLANATION 1 SCANNER 1 1 Composition PS1 PS2 7 8 Mi pa Q lt z lt a X E z 2 8050ma2001 Symbol Name Function or method 1 CCD board CCDB Converts an analog signal to a digital signal 2 DF reset read switch RS1 Detects whether the platen cover or RADF is closed Magnet sensor type 3 CCD unit Converts the read image optoelectronically 600 dpi 3 lines RGB linear image sensor 4 Exposure lamp L1 The light source for reading an image Xenon fluorescent lamp white 5 Exposure unit Reads an image Light source moving slit exposure Outgoing 220 mm sec at life size Backhaul 802 mm sec at life size 6 V mirror unit Reflects the read light 2nd 3rd mirror
57. ction and sends a con trol signal to each counter Photo sensor actuator 15 5 2 Counter operation This machine uses a counter on the software to count a number of copies A Paper exit counter The counter takes the count of 1 every time the paper exit sensor PS13 turns off from on In the double side copy mode however this takes the count of 2 B Copy counter on OB1 This displays the number of copies that have been discharged C T This counts up in conjunction with the paper exit counter 2 73 z Q z lt gt 2 OTHER CONTROLS D CF5001 Ver 1 0 Sep 2003 This counts up in conjunction with the paper exit counter E C K This counts up in conjunction with the paper exit counter Signals in serial connection Connector Pin No Signal name In Out Description 37 1 OP SOUT Out Open collector output 1807 2 OP DTR Out Open collector output 1507 3 OP CTS In 5 V Pull up 4 OP SIN In 5 V Pull up 5 OP DSR In 5 V Pull up 6 OP RTS Out Open collector output 1507 7 SGND Signal ground 8 COPV ENB In 5 V Pull up 9 24 VDC Power supplied to the vendor 10 PGND Power ground 11 5 VDC Power supplied to the vendor G Signals for status indicator lights Connector Pin No Signal name Description Output timing Type of signal 391 1A DC24V Power source of A
58. d Cord Do not bundle or tie the power cord Overheating may occur there leading to a risk of fire Check whether dust is collected around the power plug and wall outlet Using the power plug and wall outlet without removing dust may result in fire Do not insert the power plug into the wall outlet with a wet hand The risk of electric shock exists When unplugging the power cord grasp the plug not the cable The cable may be broken leading to a risk of fire and electric shock e NWARNING Wiring Never use multi plug adapters to plug multiple power cords in the same out let 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 an extension cord which is too long may result in fire Do not use an extension cable reel with the cable taken up Fire may result NWARNING Ground Lead Check whether the copier is grounded properly If current leakage occurs in an ungrounded copier you may suffer electric shock while operating the copier Connect the ground lead to one of the following points a Ground terminal of wall outlet b Ground terminal for which Class D work has been done eo S 4 SAFETY AND IMPORTANT WARNING ITEMS NWARNING Ground Lead Pay attention to the point to which the ground lead is connected Connecting the ground lead to an i
59. d Service e Operation condition 2 The machine is in a warm up cycle except when the fusing temperature is 70 or more at the start of the warm up cycle e Operation condition 3 The specified number of page is copied printed e Operation condition 4 The copy print operation has not been performed for a certain time e Operation condition 5 A certain change in temperature is detected from the temp detection board TDB z Q lt z lt EI X 2 Note In operation condition 3 the correction control is performed by temporarily interrupting the cur rent job Setting using the DIP SW of the 25 mode can nonetheless be made to let the machine perform the correction control after completing the current job For operation condition 4 and 5 the first copy print cycle is started after the corresponding operation condition has been met CF5001 Ver 1 0 Sep 2003 3 DRUM UNIT 3 1 Composition DRUM UNIT 26 25 24 23 22 ba ER DRDB Y Nr DRDB C 1 H DRDB K 51 6 7 8 27 28 29 30 9 10 11 12 13 14 15 16 PS67 17 8050ma2011 Symbol Name Function or method 1 Drum potential sensor board Y DRPSB Y Controls the drum potential sensor Y DRPS Y 2 Drum potential sensor board M DR
60. d by the appropriate daily service work conducted by the customer engineer e When performing service each copier on the site must be tested for safety The customer engineer must verify the safety of parts and ensure appropriate management of the equipment 5 9 SAFETY AND IMPORTANT WARNING ITEMS SAFETY INFORMATION IMPORTANT INFORMATION The Center for Devices and Radiological Health CDRH of the U S Food and Drug Administration implemented regulations for laser products manufactured since August 1 1976 Compliance is mandatory for products mar keted in the United States This copier is certified as a Class 1 laser product under the U S Department of Health and Human Services DHHS Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968 Since radiation emitted inside this copier is completely confined within protective housings and external covers the laser beam cannot escape during any phase of normal user opera tion SAFETY AND IMPORTANT WARNING ITEMS SAFETY CIRCUITS This machine is provided with the following safety circuits to prevent machine faults from resulting in serious accidents Overall protection circuit e Fixing upper lamp 1 L2 Fixing upper lamp 2 L3 Fixing lower lamp L4 overheating prevention circuit These safety circuits are described below to provide them in order to prevent servicing errors that may the service enginee
61. de Character picture printed original life size Memory capacity Standard 128 MB only loaded Job Job in the mode in which job memory is not used 2 Standard 128MB memory is packaged on the board So it cannot be changed for a new one Four slots are provided for expansion and it is possible to install option memory set of 4 by 256MB PRODUCT SPECIFICATIONS C Copy paper Standard specified paper LU Z 2 el Ordinary paper Special paper 1 CF5001 Ver 1 0 Sep 2003 For full color Neusiedler Color Copy 90g m Hammermill Tidal 75 g m For black and white Konica Business Class 80 g m Hammermill Laser Color Copy Photo White Brightness 96 105 g m High quality paper coated paper and recycled paper of 64 g m to 105 g m Label paper and ordinary paper of 106g m to 256g m 1 Label paper should be fed one at a time by the by pass feed method Coated paper of 106 g m to 256 g m is fed one at a time by by pass feed However it is possible to feed it through C 208 optional Double sided copy is unavailable for special paper that is other than the ordinary paper of 106 g m to 209 g m D Machine data Power source for metric area for inch area Power consumption for metric area for inch area Weight Dimensions 230 VAC 14 to 10 6 50Hz 208 240 10 60 Hz 3400 W max Full option 3600 W max Full option Approx 313 kg 794 mm W x 889 mm D x 1056 mm H with platen c
62. drum Y Manages the drive of the drum motor Y 14 gt There are two sensors PS 60 and PS61 at opposite of the K encoder to cancel the rotational fluctuations due to the eccen tricity of the encoder PS61 Encoder sensor Y2 Detects the rotation of the encoder for the drum Y Manages the drive of the drum motor Y M14 There are two sensors PS 60 and PS61 at opposite of the encoder to cancel the rotational fluctuations due to the eccen tricity of the encoder PS62 Encoder sensor M1 Detects the rotation of the encoder for the drum M Manages the drive of the drum motor M M15 There are two sensors PS 62 and PS63 at opposite of the encoder to cancel the rotational fluctuations due to the eccen tricity of the encoder PS63 Encoder sensor M2 Detects the rotation of the encoder for the drum M Manages the drive of the drum motor M M15 There are two sensors PS 62 and PS63 at opposite of the encoder to cancel the rotational fluctuations due to the eccen tricity of the encoder PS64 Encoder sensor C1 Detects the rotation of the encoder for the drum C Manages the drive of the drum motor C M16 There are two sensors PS 64 and PS65 at opposite of the encoder to cancel the rotational fluctuations due to the eccen tricity of the encoder PS65 Encoder sensor C2 Detects the rotation of the encoder for the drum C Manages the drive of the drum motor C M16 There are two sensors PS 64 and PS65 at opposite of the encode
63. e from the toner bottle motor M53 to the toner bottle K 24 VDC drive 3 Toner bottle motor M53 Driving of the toner bottles Y M C K and driving of the toner conveyance screw for each color 4 Toner supply motor K M52 Driving of the toner supply screw Stepping motor 5 Toner supply motor C M51 Driving of the toner supply screw Stepping motor 6 Toner supply motor M M50 Driving of the toner supply screw Stepping motor 7 Toner level detection sensor K TLD K Detection of the toner level in the toner hopper section K Detection is made at the remaining quantity of about 50 g Toner bottle capacity Approx 690 g 8 Toner level detection sensor C TLD C Detection of the toner level in the toner hopper section C Detection is made at the remaining quantity of about 50 g Toner bottle capacity Approx 460 g 9 Charging intake fan M48 Cooling around charging Y M C K Sirocco fan 10 Toner supply interlock switch MS2 24 VDC power line for MC13 MC14 MC15 and MC16 toner bottle clutch Y M C and K is shut off when the toner supply door is open 11 Toner supply door open close sensor PS54 Toner supply door open close detection 2 33 2 lt 2 lt a gt lt E z 2 2 H lt 2 4 E D X 2 TONER SUPPLY CF5001 Ver 1 0 Sep 2003 Symbol Name Function or method 12 Toner level d
64. e processing 1 Brightness density conversion 2 Text dot pattern photo map judgement 3 Filtering 4 Magnification change processing 5 Error diffusion processing 6 Data compression elongation processing 7 AE 8 ACS 9 Screen processing 2 H lt z lt E gt 2 2 10 CF5001 Ver 1 0 Sep 2003 2 WRITE 2 1 Composition WRITE 22 21 20 19 18 17 16 15 1 9 14 13 12 10 9 8 7 8050ma2010 Symbol Name Function or method 1 Cylindrical lens 1 Corrects the laser path against the angle error in the polygon mirror 2 Polygon mirror Scans the laser light Hexahedron 51 968 51 rpm 3 Polygon motor Y Drives the polygon mirror write unit Y DC brushless motor PLL control 4 Polygon motor M M4 Drives the polygon mirror write unit M DC brushless motor PLL control 5 Polygon motor C M5 Drives the polygon mirror write unit C DC brushless motor PLL control 6 Polygon motor K M6 Drives the polygon mirror write unit K DC brushless motor PLL control 7 Temp detection board TDB Detects the temperature in the write unit only installed on the write unit K 8 Laser correction HP sensor Y Detects the home position for the cylindrical lens 2 write unit PS5 IY 1 9 Laser correction HP sensor M Detects the home position for the cylindrical lens 2 write unit PS6
65. ection screw 3 Horizontal conveyance pipe 7 Transfer belt motor M18 4 Paper feed motor M41 8 Belt collection drive cam CF5001 Ver 1 0 Sep 2003 DRIVE SYSTEM DIAGRAM 5 6 Fixing drive E 2 4 3 8050 1008 1 motor M54 5 Fixing roller L 2 Fixing roller U 6 Fixing motor M29 3 gt One way clutch 7 Fixing paper exit roller 4 Pressure release cam DRIVE SYSTEM DIAGRAM CF5001 Ver 1 0 Sep 2003 5 7 Paper feed drive 5 7 1 Paper feed tray 1 to 3 drive LU E 2 el 17 19 18 27 21 20 23 24 26 22 13 12 11 9 10 8 1 Pre registration roller 3 8 Paper feed roller 3 2 Pre registration clutch 3 MC12 9 Double feed prevention roller 2 3 Drive coupling 3 10 Tray up drive motor 3 M38 4 Paper feed motor M41 11 Paper feed roller 2 5 Double feed prevention roller 3 12 Tray up drive motor 2 M39 6 Feed roller 3 13 Double feed prevention roller 1 7 Paper feed clutch 3 MC11 14 Paper feed tray CF5001 Ver 1 0 Sep 2003 DRIVE SYSTEM DIAGRAM 15 Up down wire 22 Feed roller 2 16 Tray up drive motor 1 M40 23 Paper feed clutch 2 MC9 17 Paper feed roller 1 24 Drive coupling 2 18 Feed roller 1 25 Pre registration roller 2 19 Paper feed clutch 1 MC7 26 Pre registration cl
66. en it is determined by the length of time during which the toner supply motor has been driven that there is no remaining toner in the toner hopper the copy print operation is stopped according to the setting of DIPSW 1 2 1 3 of the 25 mode However according to the setting of DIPSW 1 2 1 3 of the 25 mode when the toner density in the develop ing unit is below the specified value while in the stop operation the copy print operation will stop immedi ately after paper in the machine is ejected 2 Q 2 gt lt E z 2 2 35 TONER COLLECTION CF5001 Ver 1 0 Sep 2003 7 TONER COLLECTION 7 1 Composition 9 z z lt ESI gt lt z 2 8050ma2019 Symbol Name Function or method 1 Waste toner door PS PS53 Open close detection of the toner collection door presence absence detection of the toner collection box 2 Waste toner discharge exit Discharge exit of waste toner for the toner collection box 3 Toner collection box Waste toner collection container Capacity 7 0 liters max 4 Waste toner full sensor PS52 Toner collection box full detection Detection made at about 5 6 liters 5 Vertical conveyance pipe Vertical conveyance of waste toner 6 Toner rocking plate Toner conveyance in the vertical conveyance pipe Cam drive method 7 Belt collection pipe Conveyance of waste toner from the transfer belt unit
67. etection sensor M Detection of the toner level in the toner hopper section M TLD M Detection is made at the remaining quantity of about 50 g Toner bottle capacity Approx 460 g 13 Toner level detection sensor Y Detection of the toner level in the toner hopper section Y TLD Y Detection is made at the remaining quantity of about 50 g Toner bottle capacity Approx 460 g 14 Toner supply motor Y M49 Driving of the toner supply screw Stepping motor 15 Toner bottle clutch AM MC 14 Transmission of driving force from the toner bottle motor M53 to the toner bottle M 24 VDC drive 16 Toner bottle clutch Y MC13 Transmission of driving force from the toner bottle motor M53 to the toner bottle Y 24 VDC drive PS14 Toner supply unit open close sensor Toner supply unit open close detection 6 2 Operation 6 2 1 Toner supply control to the toner hopper section A Toner supply operation When the toner level detection sensors Y M C and K TLD Y M C K detect the toner level of about 50g in the toner hopper section the toner bottle motor M53 and the toner bottle clutches Y M C and K MC13 MC14 MC15 and MC16 turn on and rotate the toner bottle to supply a new toner to the toner hop per section B No toner display on the operation LCD When the toner level detection sensors Y M C and K TLD Y M C K detect the toner level of about 50 g and no toner is supplied to the toner hopper sec
68. eveloper z Q lt z lt EI X 2 14 2 Dmax control The purpose of the Dmax control is to set the highest image density for each color to the reference level The Dmax control is carried out by the gamma sensor PS11 drum motors Y M C and K M14 M15 M16 and M17 transfer belt motor M18 1st transfer pressure release motor M19 and the developing motors Y and K M20 M21 M22 and M23 and controlled by the printer control board PRCB Related sensors include the temperature humidity sensor TEMP HUM A Explanation of the operation With a patch image created on the transfer belt at the maximum exposure amount each density is read by the gamma sensor PS11 This operation is repeated several times while changing a developing bias value each time The developing bias value obtained when the density reaches the reference level is stored as an optimum developing bias value of the machine and developing is made at this developing bias value B Timing of the operation e When the main switch SW is turned on for the first time in 6 hours or more after it was turned off e When the job starts 6 hours or more after the SW2 has been turned on e Every 1 000 pages of output However at the time of completion of the job when the 1 000th page is contained in the job e When the humidity has changed more than 30 RH from the value measured at the last operation CF5001 Ver 1 0 Sep 2003 IMA
69. f at the same time And when TS2 detects an abnormal temperature the flow of electricity to the fixing lower lamp 2 L4 is shut off CF5001 Ver 1 0 Sep 2003 INTERFACE 13 INTERFACE 13 1 Composition 2 Q lt 2 lt 8050ma2037 a X Symbol Name Function or method 1 Video interface for controller For controller 3 2 Serial port RS 232C For RD mode communications D SUB 9 pin connector 131 Parallel port based on IEEE 1284 For ISW of copier 36 pin centronics connector 4 Serial port USB Type B For ISW of copier Ver 1 1 5 RJ45 Ethernet connector Port for network 2 65 IMAGE STABILIZATION CONTROL CF5001 Ver 1 0 Sep 2003 14 IMAGE STABILIZATION CONTROL 14 1 Toner density control The purpose of this control is to correct the reference value of toner density for each color against variable factors of the image density such as environmental factors A Explanation of the operation The charging amount of toner changes depending on the environmental factors such as the temperature and humidity And in proportion to the length of time since developer was last used toner tends to be hard to get charged The reference value of toner density is varied to correct these change in the charging amount of toner B Timing of the operation e When the environmental factors such as the temperature and or humidity change e For each elapsed hour of the use of d
70. force from the paper feed motor M41 to the pre registration roller 2 24 VDC drive MC11 Paper feed clutch 3 Transmission of the driving force from the paper feed motor M41 to the paper feed roller 3 24VDC drive MC12 Pre registration clutch 3 Transmission of the driving force from the paper feed motor M41 to the pre registration roller 3 24 VDC drive SD7 Pick up solenoid 1 Transmission of the driving force of the tray 1 paper feed SD8 Pick up solenoid 2 Transmission of the driving force of the tray 2 paper feed 509 Pick up solenoid 3 Transmission of the driving force of the tray 3 paper feed PS29 Pre registration sensor 1 Detection of paper conveyance at the pre registration roller 1 entrance PS30 Tray upper limit sensor 1 Detection of the upper limit of the tray 1 paper PS31 No paper sensor 1 Detection of the presence of the tray 1 paper PS32 Remaining paper sensor 1 Detection of the remaining paper in the tray 1 PS33 Paper size 51 Detection of the paper size along the length of the tray 1 PS34 Paper size L1 Detection of the paper size along the length of the tray 1 PS35 Pre registration sensor 1 Detection of paper conveyance at the pre registration roller 2 entrance PS36 Tray upper limit sensor 2 Detection of the upper limit of the tray 2 paper PS37 No paper sensor 2 Detection of the presence of the tray 2 paper PS38 Remaining paper sensor 2 Detection of the remaining paper in the tray 2 PS
71. from TH1 TH2 TH3 or TH4 exceeds the reference value L2 L3 and L4 are turned OFF by opening RL1 NCAUTION The clearance between the fixing upper roller and TH1 and the clearance between the fixing lower roller and TH2 must not be changed When replacing them make sure to comply with the specified clearances Periodically check the contact between the fixing upper roller and TH3 and the contact between the fixing lower roller and TH4 and replace them if any abnormality is detected The RL1 function must not be deactivated under any circumstances Protection by thermostat 1 TS1 and thermostat 2 TS2 When the temperature of the fixing upper roller exceeds the specified value TS1 is turned OFF thus inter rupting the power to L2 and L3 directly When the temperature of the fixing lower roller exceeds the speci fied value TS2 is turned OFF thus interrupting the power to L4 directly NCAUTION Do not use any other electrical conductor in place of 51 and TS2 SAFETY AND IMPORTANT WARNING ITEMS INDICATION OF WARNING ON THE MACHINE Caution labels shown below 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 Right side of the fixing unit CAUTION DO NOT put your hand between the main body and developing fixing unit otherwise you may be injured
72. g an inspection be sure to disconnect the power plugs from the copier and options When the power plug is inserted in the wall outlet some units are still pow ered even if the POWER switch is turned OFF A risk of electric shock exists The area around the fixing unit is hot You may get burnt NDANGER Work Performed with the Copier Powered Take every care when making adjustments or performing an operation check with the copier 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 5 6 SAFETY AND IMPORTANT WARNING ITEMS NDANGER Work Performed with the Copier Powered Take every care when servicing with the external cover detached High voltage exists around the drum unit A risk of electric shock exists NWARNING Safety Checkpoints Check the exterior and frame for edges burrs and other damages The user or CE may be injured Do not allow any metal parts such as clips staples and screws to fall into the copier They can short internal circuits and cause electric shock or fire Check wiring for squeezing and any other damage Current can leak leading to a risk of electric shock or fire When disconnecting connectors grasp the connector not the cable Specifically connectors of the AC line and hi
73. g correction with the white standard board attached to the platen glass once it completes the home position search In the shading correction operation the white correction is performed twice and the black correction once In the white correction the white standard board is read while the exposure lamp L1 is turned on In the black correction the board is read while the lamp is off Data for each CCD sensor is read during the both white corrections and each pixel is compared its bright ness The brighter data is regarded as the white correction data The shading correction reading operation may differ between when the main switch SW2 is turned on and when the start button is turned on A When the main switch SW2 is turned on 2 Q 2 gt lt E z 2 8050ma2004 Platen APS location home position b 2nd white correction 2 PS1 6 Black correction 3 Platen APS position 7 Returning the amount moved 4 1st white correction B When the start button is turned on The basic operation is identical to when the main switch SW2 is turned on however it starts the copying operation without stopping at the platen APS location after reading the shading correction 2 3 SCANNER CF5001 Ver 1 0 Sep 2003 1 2 3 Original reading mode There are two original reading modes the platen mode and the DF mode The original reading 15 com mon operation A When copying with the manual density setting
74. gh voltage parts Current can leak leading to a risk of electric shock or fire Carefully remove all toner remnants and dust from electrical parts and elec trode units such as a charging corona unit Current can leak leading to a risk of copier trouble or fire Check high voltage cables and sheaths for any damage Current can leak leading to a risk of electric shock or fire 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 incorporating a laser make sure that the power cord has been disconnected The laser light can enter your eye leading to a risk of loss of eyesight Do not remove the cover of the write unit Do not supply power with the write unit shifted from the specified mounting position The laser light can enter your eye leading to a risk of loss of eyesight When replacing a lithium battery replace it with a new lithium battery speci fied in the Parts Guide Manual Dispose of the used lithium battery using the method specified by local authority Improper replacement can cause explosion eoececceccocoSse S 7 SAFETY AND IMPORTANT WARNING ITEMS NWARNING Safety Checkpoints After replacing a part to which AC voltage is applied e g optical lamp and fixing lamp be sure to check the installation state Q A risk of fire exists
75. h 2 Q lt lt gt lt E 2 2 z Q z lt gt 2 SCANNER CF5001 Ver 1 0 Sep 2003 1 2 5 APS control The APS control is performed in the printer control board PRCB with signals read by the APS sensor 5 PS3 the APS sensor L PS4 and the CCD sensor when the platen cover or RADF is opened closed The signal is sent via the scanner drive board SCDB and the overall control board see the AFR 20 Service manual for more detailed information on the APS control by AFR 20 A APS operation The APS sensor S PS3 and the APS sensor L PS4 detect the original size in the sub scan direction and the CCD sensor detects the original size in the main scan direction B Relationship between each of the sensors and the original size Original size sensor PS3 PS4 Length of detection mm ON OFF ON OFF Smallest 102 OFF OFF BSR 182 ON OFF B5 257 OFF OFF B4 257 ON ON A4R 210 ON OFF 4 297 297 ON ON 8 5x 11R 215 9 ON OFF 8 5x 11 279 4 OFF OFF 8 5 x 14 215 9 ON ON 11x17 279 4 ON ON C APS detection timing platen mode The original size in the main scan direction is detected twice The larger size is regarded as the original size APS sensor S PS3 APS sensor L PS4 Exposure lamp L1 APS timing sensor PS2 DF reset read switch RS1 805
76. ilation Do not place the copier in a place where there is much dust cigarette smoke or ammonia gas Place the copier in a well ventilated place to prevent machine problems and image faults 5 5 SAFETY AND IMPORTANT WARNING ITEMS NCAUTION Ventilation The copier generates ozone gas during operation but it is not sufficient to be harmful to the human body ry If a bad smell of ozone is present in the following cases ventilate the room Q 7 Ia a When the copier is used in a poorly ventilated room b When lot of copies 5 EH c When using multiple copiers at the same time I on NCAUTION Vibration When installing the copier read the Installation Guide thoroughly Be sure to install the copier in a level and sturdy place Constant vibration will cause problems Be sure to lock the caster stoppers In the case of an earthquake and so on the copier may slide leading to an injury NCAUTION Inspection before Servicing Before conducting an inspection read all relevant documentation Service manual technical notices etc and proceed with the inspection following the prescribed procedure in safety clothes using only the prescribed tools Do not make any adjustment not described in the documentation If the prescribed procedure or tool is not used the copier may break and a risk of injury or fire exists Before conductin
77. ind this policy NDANGER PROHIBITED ACTIONS Using any cables or power cord not specified by Minolta Using any fuse or thermostat not specified by Minolta Safety will not be assured leading to a risk of fire and injury Disabling fuse functions or bridging fuse terminals with wire metal clips sol der or similar object Disabling relay functions such as wedging paper between relay contacts OO Gi Disabling safety functions interlocks safety circuits etc Safety will not be assured leading to a risk of fire and injury Using parts not specified by Minolta Making any modification to the copier unless instructed by Minolta Q SAFETY AND IMPORTANT WARNING ITEMS 2 CHECKPOINTS WHEN PERFORMING ON SITE SERVICE Minolta copiers are extensively tested before shipping to ensure that all applicable safety standards are met in order to protect the customer and customer engineer 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 In order to maintain safety and reliability the CE must perform regular safety checks 2 1 Power Supply NWARNING Wall Outlet Check that main voltage is as specified Plug the power cord into the dedi cated wall outlet with a capacity greater than the maximum power consump tion If excessive current flows in the wall outlet fire may resul
78. ing paper sensor 1 PS32 As the amount of paper in the tray is getting reduced the actuator provided at the front of the tray rotates gradually The PS32 turns on and off each time a slit in the actuator passes through The main body control section counts the number of on off s of the PS9 after the installation of the tray to detect the amount of remaining paper in 4 steps The detection of no paper is made by the no paper sensor 1 PS31 2 Q lt z a gt lt E z 2 No of the slit counts Remaining paper in the tray Indication of remaining amount on the operation board 0 100 to 75 4 lit 1 75 to 50 3 lit 2 50 to 25 2 lit 3 25100 1 lit 8050 2049 1 Rotational direction when the up down plate goes up 4 Slit2 2 Remaining paper sensor 1 PS32 5 SIit 3 3 Slit 1 6 Actuator 2 41 PAPER FEED TRAY 1 TO 3 CF5001 Ver 1 0 Sep 2003 8 2 4 Paper size detection control The main scan direction is detected by the resistance value of the paper size VR 1 VR1 of the bottom of the paper feed tray The sub scan direction is detected in the combination of the on off of the paper size S1 PS33 of the up down plate and the paper size L1 PS34 Paper size Paper size S Paper size L Paper size VR 13 x 19R O O 333 2 12 6 x 18R 17 7R O O 317 0 lt wide O O 307 4 5 12
79. is same in the platen mode and in the DF mode when AE ACS has not been set however it is different when AE ACS has been set 1 When AE ACS has not been set 2 Q lt 2 4 gt lt E Z 2 8050ma2051 1 Home position 5 2nd white correction 2 PS1 6 gt Exposure scan 220 mm s 3 Platen APS position 7 Home position search 4 1st white correction 2 5 SCANNER CF5001 Ver 1 0 Sep 2003 2 When AE ACS has been set the platen mode 2 lt 2 1 lt E 1 a 1 X 1 E 1 z 3 8 8050ma2052 1 Home position 5 2nd white correction 2 PS1 6 AE ACS scan 429 mm s 3 Platen APS position 7 Exposure scan 220 mm s 4 1st white correction B Home position search CF5001 1 0 Sep 2003 3 When AE ACS has been set DF mode SCANNER V 1 14 8 10 11 8050ma2053 1 2 3 4 5 6 7 Home position PS1 Platen APS position 1st white correction 2nd white correction AE ACS scan for the 1st page 429 mm s Exposure scan for the 1st page 220 mm s 8 9 10 11 12 13 14 Original replacing time AE ACS scan for the 2nd page 429 mm s Exposure scan for the 2nd page 220 mm s Original replacing time AE ACS scan for the last page 429 mm s Exposure scan for the last page 220 mm s Home position searc
80. istration correction control In a black and white copier a transfer image formed on its drum is transferred onto paper directly how ever in this machine a color image is split into 4 colors yellow Y magenta M cyan C and black K the images for each color are formed on each dedicated drum they are combined on the transfer belt 1st transfer and then the combined image is transferred onto paper 2nd transfer At the 1st transfer the transfer locations for each color must be matched to prevent the color drift This control is called the color registration correction control 2 13 WRITE CF5001 Ver 1 0 Sep 2003 A Types of the color registration correction control There are following 5 color registration correction controls The write units are mechanically adjusted in the Partial horizontal magnification however the correction is performed automatically in the other four Correction type Correction method Drift in the main Adjusts the write start timing in the main scan direction scan direction 5 Drift in the sub Adjusts the write start timing in the sub scan direction S scan direction lt 5 Entire horizon Adjusts the clock frequency at write gt tal magnification 5 Inclination Adjusts the angle of the cylindrical lens 2 Partial horizon Adjusts the position of the write unit parallelism tal magnification against drum See adjusting the timing for the image adjustment
81. ma2015 Symbol Name Function or method 1 1st transfer roller Y Transfer of images from the drum Y to the transfer belt 1st trans fer Roller transfer method with constant current DC bias applied DC output range by the constant current method 5 to 50 uA 2 1st transfer roller M Transfer of images from the drum M to the transfer belt 1st trans fer Roller transfer method with constant current DC bias applied DC output range by the constant current method 5 to 50 uA 3 1st transfer roller C Transfer of images from the drum C to the transfer belt 1st trans fer Roller transfer method with constant current DC bias applied DC output range by the constant current method 5 to 50 uA 4 1st transfer roller K Transfer of images from the drum K to the transfer belt 1st trans fer Roller transfer method with constant current DC bias applied DC output range by the constant current method 5 to 50 uA 5 Transfer belt Image creation for paper transfer Semiconductor polyimide film 6 Separation claw unit Paper separation assist from the transfer belt Pressure release method by the transfer belt separation claw sole noid SD1 7 Belt cleaning unit Cleaning and collection of toner on the transfer belt 8 Belt cleaning blade Cleaning of the transfer belt Transfer belt contact separation method 2 28 CF5001
82. mproper point such as the points listed below results in a risk of explosion and electric shock a Gas pipe A risk of explosion or fire exists b Lightning rod A risk of electric shock or fire exists Q c Telephone line ground A risk of electric shock or fire exists in the case of lightning d Water pipe or faucet It may include plastic portion 2 2 Installation Requirements NWARNING Prohibited Installation Place Do not place the copier near flammable materials such as curtains or volatile materials that may catch fire A risk of fire exists Do not place the copier in a place exposed to water such as rain water A risk of fire and electric shock exists NWARNING Nonoperational Handling When the copier is not used over an extended period of time holidays etc switch it off and unplug the power cord Dust collected around the power plug and outlet may cause fire NCAUTION Temperature and Humidity Do not place the copier in a place exposed to direct sunlight or near a heat source such as a heater A risk of degradation in copier performance or deformation exists Do not place the copier in a place exposed to cool wind Recommended temperature and humidity are as follows Temperature 10 C to 30 Humidity 10 to 80 no dew condensation Avoid other environments as much as possible NCAUTION Vent
83. ng exposure lamp Y PCL Y Pre charging exposure lamp M PCL Pre charging exposure lamp C PCL C Pre charging exposure lamp K PCL K Charging Y HV1 Charging M HV1 Charging C HV1 Charging K HV1 Developing bias Y HV1 Deveroping bias M DC HV1 4 Developing bias DC HV1 4 Developing bias K DC HV1 Developing bias 1 p Developing bias M AC HV1 Developing bias C AC HV1 Fa Developing bias K AC HV1 L m 1st transfer Y HV2 EE 1st transfer M HV2 Ce Ps 1st transfer C HV2 L mm p 1st transfer K HV2 NEN 2 transfer 2 ag Separation HV2 Guide plate HV2 _ E Drum separation claw solenoid SD1 m V TOP a nm Paper exit sensor PS13 1 2 8050 2012 1 Paper feed start 2 2nd transfer cleaning 2 23 DEVELOPING UNIT CF5001 Ver 1 0 Sep 2003 4 DEVELOPING UNIT 4 1 Composition Vu E E E E E E E E E EET 121131141051 16 z O lt 2 lt gt lt E z 5 8 9 10 11 4 5 6 7 8050ma2013 Symbol Name Function or method 1 Conveyance screw Conveyance of de
84. ng of each operation of the 2nd transfer control see 3 Drum unit section 11 2 8 Paper exit full detection control When the paper exit full sensor PS12 is turned on and is kept in this condition during exiting a specified number of papers or for a specified period of time it is considered that the paper exit tray is full with paper and a message is shown on the operational LCD 2 59 FIXING UNIT CF5001 Ver 1 0 Sep 2003 12 FIXING UNIT 12 1 Composition L3 L2 1 TH3 TH1 z lt z lt ESI gt lt z 2 PS16 M29 M54 TS1 8050ma2043e Symbol Name Function or method 1 Fixing roller U Toner fixing by means of pressure and heating Heating roller method Silicon rubber PFA resin layers Temperature 210 C 2 Fixing roller L Toner fixing by means of pressure and heating Heating roller method driven by the fixing roller U Pressure release by means of cam drive Silicon rubber PFA resin layers Temperature 190 C 3 Cleaning roller Cleaning of the fixing roller U 4 Cleaning web Cleaning of the cleaning roller M29 Fixing motor Driving of the fixing roller U Fixing roller L pressure release drive 24V brushless DC motor M54 Web motor Driving of the cleaning web Synchronous motor PS16 Fixing pressure release sensor Fixing roller L pressure release HP detection PS17 Fixing paper exit sensor Paper exit detection fr
85. nit Y 15 ADU 5 Write unit M 16 Reverse section 6 Write unit C 17 Paper exit tray 7 Developing unit C 18 Paper exit section 8 Developing unit K 19 Transfer belt unit 9 Write unit K 20 Image correction unit 10 tray 21 Scanner section 11 Drum 22 CCD unit CF5001 1 0 Sep 2003 4 PAPER PATH Front side HEER St SSE SA ARES E a eer e E E T a SEE LU Z 2 el 8050ma1029 CF5001 Ver 1 0 Sep 2003 PAPER PATH Back side 2 8050 1030 DRIVE SYSTEM DIAGRAM CF5001 Ver 1 0 Sep 2003 5 DRIVE SYSTEM DIAGRAM 5 1 Drum drive 2 gt 5 e o 1222 m 8050ma1003 1 Drum motor Y M C K M14 M15 M16 M17 2 Drum CF5001 Ver 1 0 Sep 2003 DRIVE SYSTEM DIAGRAM 5 2 Transfer belt conveyance pressure drive E 2 8050 1004 1 1st transfer roller Y 9 Belt drive roller 2 Drum 10 While in stand by Total release 3 jet transfer roller M 11 Black and white mode 4 1st transfer roller C Pressure on 1st transfer roller K only 5 1st transfer roller K 12 Full color mode Total pressure 6 1sttransfer pressure release motor M19 13 1st transfer roller K pressure release arm 7 Tra
86. nsfer belt 14 Drive coupling 8 Transfer belt motor M18 15 1st transfer roller K pressure release cam 16 1st transfer roller Y M C pressure release cam DRIVE SYSTEM DIAGRAM CF5001 Ver 1 0 Sep 2003 5 3 Developing drive LU E 2 el 8050 1005 t Toner collection screw 5 Toner conveyance screw 2 Toner agitator screw 6 Developing coupling 1 3 gt Developing coupling 2 7 Developing sleeve 4 Developing motor Y M C K M20 M21 M22 M23 CF5001 Ver 1 0 Sep 2003 5 4 Toner supply drive DRIVE SYSTEM DIAGRAM 8050ma1006e 1 2 3 4 5 6 7 Toner supply gear A Same shaft as C Toner bottle clutch Y MC14 Toner bottle clutch M MC15 Toner bottle clutch C MC16 Toner supply gear A Same shaft as D Toner bottle clutch K MC17 Toner supply motor K M52 8 9 10 11 12 13 14 Toner supply motor C M51 Toner bottle motor M53 Toner supply motor M M50 Toner supply motor Y M49 Toner bottle drive gear Toner conveyance screw Toner supply screw E 2 DRIVE SYSTEM DIAGRAM CF5001 Ver 1 0 Sep 2003 5 5 Toner collection drive LU E 2 el 8050 1007 1 Drum waste toner receiving port b Vertical conveyance pipe 2 Horizontal conveyance screw 6 Belt coll
87. om fixing 2 60 CF5001 1 0 Sep 2003 FIXING UNIT Symbol Name Function or method L2 Fixing upper lamp 1 Heating of the fixing roller U main Halogen heater 750 W L3 Fixing upper lamp 2 Heating of the fixing roller U sub Halogen heater 750 W L4 Fixing lower lamp Heating of the fixing roller L Halogen heater 550 W TH1 Fixing temperature sensor 1 Temperature detection at the center of the fixing roller U main Non contact microthermistor TH2 Fixing temperature sensor 2 Temperature detection at the center of the fixing roller L main Non contact microthermistor TH3 Fixing temperature sensor 3 Temperature detection at the edge at rear of the fixing roller U sub Contact thermistor TH4 Fixing temperature sensor 4 Temperature detection at the edge at rear of the fixing roller L sub Contact thermistor TS1 Thermostat 1 Fixing roller U temperature abnormality detection Non contact bimetal Set temperature 190 TS2 Thermostat L Fixing roller L temperature abnormality detection Non contact bimetal Set temperature 160 FHCB Fixing heater control board Prevention of noise leak in the drive power for the fixing upper lamp 1 2 L2 L3 220 V system only 2 61 2 Q lt 2 lt X E zZ 2 FIXING UNIT CF5001 Ver 1 0 Sep 2003 12 2 Operation 12 2 1 Fixing drive control Paper is conveyed with the heated fixing roller U
88. on after the SW2 turns on the operation is not carried out again until the SW2 turns off z o lt 2 gt lt z 2 14 3 2 Low humidity environment correction When in a low humidity environment the humidity is lower in the enclosed area near the cleaning section along the drum circumference This result in an uneven charging potential along the circumference of the drum Accordingly this correction method is used to prevent these conditions from happening A Explanation of the operation To ease the influence on the drum caused by the ambient humidity around the drum the drum for each color is rotated 45 periodically while in idling B Timing of the operation The drums are turned once every minutes when the humidity gets below 30 RH 2 67 IMAGE STABILIZATION CONTROL CF5001 Ver 1 0 Sep 2003 14 4 Dot diameter adjustment control The dot diameter adjustment control is method by which intermediate exposure potential is output stably regardless of the changes in the sensitivity of photosensitive materials or the stain of the writing system The laser output is controlled by the printer control board PRCB so that the intermediate exposure poten tial that is determined by the PWM128 value for each color is between a developing bias value determined by the Dmax control and a maximum exposure potential A Explanation of the operation The drum potential exposed with PWM128 value is read by
89. or PS5 is kept on for a specified period of time it is considered that the toner collection box is full with waste toner and a message is shown on the operation LCD 2 37 PAPER FEED TRAY 1 3 CF5001 Ver 1 0 Sep 2003 8 PAPER FEED TRAY 1 TO 3 8 1 Composition PS31 PS30 PS29 11 12 ll II UNIT EXPLANATION 6 5 4 M38 3 PS43 PS42 PS41 8050ma2047 Symbol Name Function or method 1 Pre registration roller 2 Conveyance of the tray 2 paper and the paper stopper plate for the correction of paper skew 2 Pre registration roller 3 Conveyance of the tray 3 paper and the paper stopper plate for the correction of paper skew 3 Double feed prevention roller 3 Double feed prevention of the tray 3 paper Torque limiter 4 Feed roller 3 Feed of the tray 3 paper 5 Paper feed roller 3 Paper feed of the Tray 3 paper 6 Double feed prevention roller 2 Double feed prevention of the tray 2 paper Torque limiter 7 Paper feed roller 2 Paper feed of the tray 2 paper 8 Up down plate 3 Tray 3 paper stacking section Up down function provided Maximum tray capacity Up to 500 sheets 80 g m 9 Up down plate 2 Tray 2 paper stacking section Up down function provided Maximum tray capacity Up to 500 sheets 80 g m 10 Up down plate 1 Tray 1 paper stacking section Up down function provided Maximum tra
90. orrection of paper skew correction Motor drive 2 ADU reverse roller Paper conveyance in the ADU reverse section and switching of the conveyance path Motor drive 3 Reverse exit roller 2 Paper conveyance in the reverse section Motor drive 4 Paper exit roller Paper conveyance in the paper exit section Motor drive 5 Reverse gate Switching of the paper exit path at the fixing unit exit section Solenoid drive 2 46 CF5001 1 0 Sep 2003 REGISTRATION ADU REVERSE PAPER EXIT Symbol Name Function or method 6 Decurler roller Paper conveyance and paper curl correction in the reverse section Motor drive 7 Fixing section Fixing of paper that has been transferred See 12 Fixing Section 8 ADU conveyance roller 1 Paper conveyance while in the double side copy mode Motor drive 9 Separation discharge plate unit Separation of the transfer belt and the paper that has been transferred Constant current AC DC bias applied neutralizing method Constant current method AC output range 0 to 300 uA Constant voltage method DC output range 60 to 0 uA 10 2nd transfer roller L Transfer of toner from the transfer belt onto paper Pressure release mechanism by means of cam Driven idly by the transfer belt 11 Transfer belt unit Image formation for paper transfer See 5 Transfer belt unit 12 Pre transfer guide plate Conveyance guide of paper
91. our finger into the bottom of the upper part of the feeder when returning to its original position otherwise you may be injured CAUTION ATTENTION PRECAUCION CUIDADO Z CAUTION Z ATTENTION A VORSICHT APRECAUCION AA ENHONE gt 41 P A CAUTION NA PRECAUCION A CAUTION Ee CUIDADO fem m inside the A CAUTION RR exit outlet is the roller AATTENZIONE gt U ft ing th ARR drive unit DO NOT put 75 edt Go DON or t your hand into it Chadd int Oe therwi pu otherwise you may be your hand into it otherwise injured you may be injured 8050sf005e NCAUTION Please adhere to all caution labels to avoid burns or injury SAFETY AND IMPORTANT WARNING ITEMS NG NOTICE BEFORE REMOVING THE WRITING UNIT disconnect Connectors REMARQUE Avant de retirer l unit d criture dbrancher les connecteurs LENTE 2338 ALTES gt PET lt J DANGER VISIBLE LASER RADIATION WHEN BET OPEN 0 AVOID DIRECT EXPOSURE TO BEAM VORSICHT ADVARSEL LASERSTRAHLUNG WENN SYNLIG LASERSTR LING N R ABDECKUNG GEOFFNET DEKSEL PNES BT H NICHT DEM STRAHL AUSSETZEN UNNG EKSPONERING ron sTRALEN 7 ER DANGER VARO RAYON LASER VISIBLE LO
92. over provided E Maintenance and life Maintenance Machine service life F Consumables Developer Toner Drum Once every 100 000 copies 5 000 000 copies or 5 years whichever earlier Exclusively for CF5001 Exclusively for CF5001 Exclusively for CF5001 660 G Operating environment Temperature Humidity Note 10 C to 30 C 10 RH to 80 RH The information herein may be subject to change for improvement without notice CF5001 Ver 1 0 Sep 2003 CENTER CROSS SECTION 3 CENTER CROSS SECTION 21 l 2 20 8050ma1002 1 Process unit 12 Paper feed tray 3 2 Developing unit Y 13 Paper feed tray 2 3 Developing unit M 14 Paper feed tray 1 4 Write u
93. paper feed tray 1 to 3 plain paper without gloss face up paper exit A4 or 8 5x 11 Continuous copy speed Full color 51 sheets min A4 memory copy 50 sheets min 8 5 x 11 memory copy Monochrome 51 sheets min A4 memory copy 50 sheets min 8 5 x 11 memory copy Black and white 51 sheets min A4 memory copy 50 sheets min 8 5 x 11 memory copy 2 Continuous copy count 9999 sheets max or 9999 copies Paper exit tray loading capacity 150 sheets A4 max Copy density selection AE manual 9 steps Resolution Scan 600 dpi x 600 dpi Copy 600 dpi x 600 dpi E RDH memory 2 Standard 128 MB for each color Y M Max 384 MB for each color Y M C K Interface Serial port USB B Serial port RS 232C RJ45 Ethernet connector parallel port based on IEEE 1284 Video interface for Fiery Controller No of originals in memory Full color Priority in high resolution 18 faces or more Priority in smooth tone 18 faces or more Priority in high compression 38 faces or more Conditions Original 101 A3 color Density Manual 5 Mode Character picture printed original life size Memory capacity Standard 128 MB only loaded Black and white monochrome Priority in high resolution 101 faces or more Priority in smooth tone 101 faces or more Priority in high compression 318 faces or more Conditions Original Image electronic institute FAX 4 chart A4 Density Manual 5 Mo
94. per reverse exit section and cooling of paper 9 Charging intake fan M48 Adverse wind to the charging corona 10 Paper exit fan R M26 Cooling around the paper reverse exit section and cooling of paper 11 Paper exit fan M M27 Cooling around the paper reverse exit section and cooling of paper 12 Transfer belt cooling fan M11 Cooling around the transfer belt 13 Fixing cooling fan 1 M10 Cooling around the fixing section of the paper exit side 14 Fixing cooling fan 3 M36 Cooling around the fixing section 15 Fixing cooling fan 2 M37 Cooling around the fixing section 16 Drum cooling fan 1 M12 Discharging heat around the drum drive motor out of the machine 17 Drum cooling fan 2 M13 Discharging heat around the drum drive motor out of the machine 18 Scanner cooling fan M2 Cooling of the scanner section 19 Drum unit fan M47 Cooling around the drum 2 71 zZ Q lt 2 gt lt E 2 2 OTHER CONTROLS CF5001 Ver 1 0 Sep 2003 15 4 Operation board control 15 4 1 Operation board composition TOUCH PANEL z lt 2 lt X 8050 2041 2 gt Symbol Name Function or method 1 Touch panel board Touch switch board used to directly select items shown on the LCD board LCDB LCDB LCD board Information of all sorts is displayed on this OB INVB OB inverter board Inverter that drives the LCD board LCDB OB1 Ope
95. r to cancel the rotational fluctuations due to the eccen tricity of the encoder 2 21 z Q 2 4 E gt 2 DRUM UNIT CF5001 Ver 1 0 Sep 2003 Symbol Name Function or method PS66 Encoder sensor K1 Detects the rotation of the encoder for the drum K Manages the drive of the drum motor K M17 There are two sensors PS 66 and PS67 at opposite of the encoder to cancel the rotational fluctuations due to the eccen tricity of the encoder PS67 Encoder sensor K2 Detects the rotation of the encoder for the drum K Manages the drive of the drum motor K M17 There are two sensors PS 66 and PS67 at opposite of the encoder to cancel the rotational fluctuations due to the eccen tricity of the encoder CF5001 1 0 Sep 2003 DRUM UNIT 3 2 Operation 3 2 1 Image formation timing Paper feed motor M41 Drum motor Y M14 Drum motor M M15 Drum motor C M16 17 z Transfer belt motor M18 2 M M 1st transfer pressure release motor M19 aamm 2nd transfer pressure release motor M34 4 S Developing motor Y M20 gt Developing motor M 21 c VE Developing motor C M22 Un 2 Developing motor K M23 p mom Pre chargi
96. r with a renewed awareness of impair their functions 1 Overall protection circuit 8050sf001 1 1 Protection by circuit breaker 1 CBR1 and circuit breaker 2 CBR2 CBR1 and CBR2 interrupt the AC line instantaneously when an excessive current flows due to a short in the AC line NCAUTION The CBR1 and CBR2 functions must not be deactivated under any circumstances SAFETY AND IMPORTANT WARNING ITEMS 2 Fixing upper lamp 1 L2 Fixing upper lamp 2 L3 Fixing lower lamp L4 overheating prevention circuit AC driver section RL1 0 gt RL1 8050sf002e 2 1 2 2 2 3 Protection by software The output voltage from fixing temperature sensor 1 TH1 and fixing temperature sensor 2 TH2 is read by the CPU If this voltage is abnormal L2 L3 and L4 are turned OFF by opening main relay RL1 NCAUTION The clearance between the fixing upper roller and TH1 and the clearance between the fixing lower roller and TH2 must not be changed When replacing them make sure to comply with the specified clearances The RL1 function must not be deactivated under any circumstances Protection by the hardware circuit The output voltages from fixing temperature sensor 1 TH1 fixing temperature sensor 2 TH2 fixing temperature sensor 3 TH3 and fixing temperature sensor 4 TH4 are compared with the abnormality judgment reference value in the comparator circuit If the output voltage
97. ransfer belt rotates to record the passage time for each color registration mark The passage time is determined by the clock signal count corresponding to the detection edge of each registration mark as shown below The detected values from PS8 and PS9 are recorded individually 150 300 3 180 330 eee _ gt 8050ma2058 1 Direction of the edge detection direction of image 2 Address number of the detected edge 3 Clock signal count value corresponding to the address for each detected edge 4 Clock signal 5 Binarized digital signals WRITE CF5001 Ver 1 0 Sep 2003 The passage time differences between black K and each color are determined from the passage times detected at above The time difference is called the color drift amount due to the image write timing It also determines the difference between the edge detection timing difference for black K and the edge detec tion timing differences for each color It is called the color drift amount due to the angle of the write unit The determined value is compared with the set point and then it is corrected to meet the set point D Operation condition of the color registration correction control The color registration correction control is performed when e Operation condition 1 The color registration automatic correction control is executed in the 36 mode Perform the operation when replacing a component described in 3 LIST OF ADJUSTMENT ITEMS in Fiel
98. ration board 1 Control of the touch panel board LCD board LCDB OB inverter board OB INVB operation board 3 OB3 and the control of the LED within the operation board 1 0B2 and the numeric pad 2 Operation board 2 LED loaded board to grasp the on off condition of the reset switch SW1 OB3 Operation board 3 Volume loaded board to adjust the brightness of the LCD board LCDB SW2 Main switch Power switch of the operation board It does not function when the reset switch SW1 is off 2 72 CF5001 Ver 1 0 Sep 2003 OTHER CONTROLS 15 5 Counter control 15 5 1 Counter composition z Q 2 EN gt lt 8050 2042 Z D Symbol Name Function or method 1 Coin vendor serial Copying is controlled depending on the presence of a coin Optional Serial connection OB1 Operation board 1 This displays a copy count C T Total counter This displays a total cumulative copy count in all copy modes Mechanical counter driven by an electric signal C BK Black counter This displays a cumulative copy count in the black and white copy mode Mechanical counter driven by an electric signal C K Key counter optional This is a counter that makes a copy operation unavailable when specified number of copies has been counted Mechanical counter driven by an electric signal PS13 Paper exit sensor This detects paper in the paper exit se
99. rmediate conveyance roller 3 24 VDC drive SD4 Reverse exit solenoid Reverse gate drive 24 VDC drive PS12 Paper exit full sensor Paper exit tray full detection Photo sensor actuator PS13 Paper exit sensor Detection of paper in the paper exit unit Photo sensor actuator PS19 Reverse exit sensor Detection of paper in the reverse section Photo sensor actuator PS20 ADU conveyance sensor Detection of paper at the ADU reverse path entrance Photo sensor actuator PS21 ADU paper reverse sensor Detection of paper in the ADU reverse section Photo sensor actuator PS22 Registration sensor Detection of paper in the registration section Photo sensor PS23 ADU pre registration sensor Detection of paper in the ADU paper loop section Photo sensor actuator 2 48 CF5001 Ver 1 0 Sep 2003 REGISTRATION ADU REVERSE PAPER EXIT Symbol Name Function or method PS24 2nd transfer HP sensor 2nd transfer roller home position detection Photo sensor PS27 Intermediate conveyance sen Detection of paper at the intermediate conveyance roller 2 sor 1 exit Photo sensor PS28 Intermediate conveyance sen Detection of paper at the intermediate conveyance roller 3 sor 2 exit Photo sensor PS55 Conveyance lever sensor ADU open close detection Photo sensor 11 2 Operation 11 2 1 Switching control of the paper exit ADU con
100. rrectiori riib aura s x ese amer tg ROLE EEN P e RR S 2 31 523 Tstiransfer control eee aes ae Ae EUER ERU patus ee 2 32 524 J2nd transfer control cec eR Sa ede Se a 2 32 6 TONER SUPPLY pr beskue e bee a PD S UE OE Dc a 2 33 6 1 GOMpOSItiON so i nex huetar Senad LO 2 33 6 2 Operation iecur Ed e AERE E eere 2 34 6 2 1 Toner supply control to the toner hopper 2 34 6 2 2 Toner supply control to the developing 2 34 6 2 3 Copy print operation stop control due to no toner 2 35 7 TONER mn vase ende ker don em we 2 36 T GOMPOSINON Lu kos ee et deb en dcbet s 2 36 CF5001 1 0 Sep 2003 CONTENTS 7 2 Operations H de cM RE LIRE Lan het add Saa ads 2 37 7 2 1 Toner collection 2 37 7 2 2 Waste toner full detection Control 2 37 8 PAPER FEED TRAY 11 TO 8 ii eene ke break ae 2 38 81 Gomposition arrene hi Ur EE ERE II REA 2 38 8 2 Operation ebrei ue EP eu Ea d E rus E Ve RU UR RT 2 40 8 2 1 Paper feed 1 2 40 8 2 2 Up down plate control 2 41 8
101. s instructed The 2nd transfer for the previous copy sheet black and white is complete Start the operation of the drum unit Y M C the developing unit Y M C and the supply unit Y M C MPC or APC is executed for the write unit Y M C The pressure is executed on the 1st transfer roller Y M C K Writing Y is started Copy count when using ACS There are following two kinds of copy count when using ACS The black and white mode the 1st transfer roller Y M C is in the release state Black and white original Total counter Counts as black and white Developer counter Counts as black and white The color mode the 1st transfer roller Y M C is in the pressure state Color original Black and white original Total counter Counts as color Counts as black and white Developer counter Counts as color Counts as color 1 1If the original is black and white the output will be black and white however the developer counter counts it as color copy and the total counter counts it as black and white copy 2 75 2 Q lt 2 gt lt z 2 OTHER CONTROLS CF5001 Ver 1 0 Sep 2003 2 Q lt 2 lt a x E 2 2 Blank Page 2 76 KONICA MINOLTA Copyright 2003 KONICA MINOLTA BUSINESS TECHNOLOGIES INC Use of this manual should be strictly supervised to avoid disclosure of confidential information KONICA MINOLTA BUSINESS TECHNOL
102. so long as the power cord is plugged into the power outlet A Circuit breakers 1 and 2 CBR 1 and 2 When more than specified amount of current flows due to the short circuit of internal parts it turns off to shut off the current to the machine B Noise filter NF This reduces the level of noise that enters through the power line C AC drive board ACDB This supplies AC power to each unit and turns on and off the fixing heater lamps and the heaters 2 69 2 Q lt 2 lt X E zZ 2 OTHER CONTROLS CF5001 Ver 1 0 Sep 2003 15 2 Parts that operate only when the power switch is turned on 15 2 1 Parts that operate when the reset switch is turned on 1 1 SW2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 z B 775315777 lt OPTION Jo 1 2 ESTE 1 OPTION gt D n i OPTION z 1 1 EE 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 TRNS1 HTR1 2 1 1 TRNS2 1 Fixing unit 1 1 i 8050ma2039 EET KMS OM Mercuri E p CE E RC TEE E reru MNT j When the reset switch SW1 turns on AC power is supplied to the DC power unit 1 DCPS1 AC drive board and the DC power unit 4 optional DCPS4 As a result DCPS1 supplies 5 VDC to the overall control board OACB to monitor it with the main switch SW2 The ACDB turns ON
103. st transfer roller provided inside the transfer belt The DC bias value of the 1st transfer roller changes according to the following conditions e Process speed e Black and white mode or color mode Humidity e of use counts of the 1st transfer roller For each operation timing of the 2nd transfer control see Image formation timing in 3 Drum unit 5 2 4 2nd transfer control Toner on the transfer belt is transferred onto the paper which is pressed between the transfer belt and the 2nd transfer roller L on the ADU side is being sent The 2nd transfer roller U is positioned inside the transfer belt directory above the 2nd transfer roller L and applied with a DC bias value according to the following conditions e Process speed e Black and white mode or color mode e Humidity e of copy paper e Front or rear side of paper z Q lt z lt EI X 2 For each operation timing of the 2nd transfer control see Image formation timing in 3 Drum unit CF5001 Ver 1 0 Sep 2003 6 TONER SUPPLY 6 1 Composition TONER SUPPLY 11 10 12 13 14 15 16 7 6 5 41 B 1210 8050ma2018 Symbol Name Function or method 1 Toner bottle clutch C MC16 Transmission of driving force from the toner bottle motor M53 to the toner bottle clutch C 24 VDC drive 2 Toner bottle clutch K MC17 Transmission of driving forc
104. stant voltage method 150 to 650 V 13 Developing sleeve M Conveyance of developer to the drum M surface by means of magnetic force Two component developing method magenta toner carrier Developing bias applied AC DC DC output range by constant voltage method 150 to 650 V 14 Developing sleeve C Conveyance of developer to the drum C surface by means of magnetic force Two component developing method cyan toner carrier Developing bias applied AC DC DC output range by constant voltage method 150 to 650 V 15 Developing sleeve K Conveyance of developer to the drum K surface by means of magnetic force Two component developing method black toner carrier Developing bias applied AC DC DC output range by constant voltage method 150 to 650 V 16 Developing regulation plate Regulation of the spiking amount of developer on the devel oping sleeve Regulation plate method 17 Scraper magnet roller Scraping of developer on the developing sleeve Magnetic adsorption method HV1 High voltage unit 1 Generation of developing vias Y M C and K M20 Developing motor Y Driving of the developing unit Y M21 Developing motor M Driving of the developing unit M M22 Developing motor C Driving of the developing unit C M23 Developing motor K Driving of the developing unit K 2 25 2 o lt
105. stment repair maintenance etc need to be conducted with utmost care NDANGER Action having a high possibility of suffering death or serious injury NWARNING Action having a possibility of suffering death or serious injury NCAUTION Action having a possibility of suffering a slight wound medium trouble and property damage Symbols used for safety and important warning items are defined as follows N Precaution when using the copier N General precaution Electric hazard High temperature Prohibition when using the copier General prohibition Do not touch with wet hand Do not disassemble Direction when using the copier amp General instruction Ground Earth S 1 SAFETY AND IMPORTANT WARNING ITEMS SAFETY WARNINGS 1 MODIFICATIONS NOT AUTHORIZED BY MINOLTA Minolta copiers are renowned for their high reliability This reliability is achieved through high quality design and a solid service network Copier 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 For this reason unauthorized modifications involve a high risk of degradation in performance and safety Such mod ifications are therefore strictly prohibited the points listed below are not exhaustive but they illustrate the rea soning beh
106. t If two or more power cords can be plugged into the wall outlet the total load must not exceed the rating of the wall outlet If excessive current flows in the wall outlet fire may result NWARNING Power Plug and Cord Make sure the power cord is plugged in the wall outlet securely Contact problems may lead to increased resistance overheating and the b 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 a cord with plugs on both ends specified by Minolta Using the damaged power cord may result in fire or electric shock When using the power cord inlet type that came with this copier be sure to observe the following precautions a Make sure the copier side power plug is securely inserted in the socket on the rear panel of the copier Secure the cord with a fixture properly b the power cord or sheath is damaged replace with a new power cord with plugs on both ends specified by Minolta If the power cord inlet type is not connected to the copier securely a contact problem may lead to increased resistance overheating and risk of fire Check whether the power cord is not stepped on or pinched by a table and so on Overheating may occur there leading to a risk of fire 5 3 SAFETY AND IMPORTANT WARNING ITEMS NWARNING Power Plug an
107. t all times 24 V status indicator 500 mA light 9B PGND Power ground 2A PAT 1 Light on signal L signal outputted when print is Open collec available tor 3A PAT2 L signal outputted while scanner or 5 V 200 mA printer in operation 4A PAT3 L signal outputted when stopped abnormally due to jamming abnor mal code no paper or no toner 5A PAT4 L signal outputted when toner supply warning is displayed CF5001 1 0 Sep 2003 15 6 15 6 1 ACS control OTHER CONTROLS Switching between the color mode and the black and white mode If more than 5 black and white sheets are fed consecutively from RADF in which both the color sheets and the black and white sheets are stored the pressure on the 1st transfer rollers Y M C are released and it shifts to the black and white mode At this time the switch is performed during JOB so there is a time lag between the color copy and the black and white copy A Switching sequence from the color mode to the black and white mode The 2nd transfer for the previous copy sheet color is complete The pressure is executed on the 1st transfer roller K the 1st transfer rollers Y M C are in release 1 2 state Writing K is started Terminate the operation of the drum unit Y M G the developing unit Y M C and the toner supply unit Y M C B Switching sequence from the black and white mode to the color mode dANONS 15 6 2 A The color print i
108. tic transfer image formation base See 5 Transfer belt unit 22 Drum K Transfer image formation base for black OPC drum 60mm 23 Drum C Transfer image formation base for cyan OPC drum 60mm 24 Drum M Transfer image formation base for magenta OPC drum 60mm 25 Drum Y Transfer image formation base for yellow OPC drum 60mm 26 Process unit Color image formation section Consists of the developing unit drum cartridge and transfer belt unit 2 20 CF5001 1 0 Sep 2003 DRUM UNIT Symbol Name Function or method 27 Drum potential sensor K DRPS K Detects the surface potential of the drum K 28 Drum potential sensor C DRPS C Detects the surface potential of the drum 29 Drum potential sensor M DRPS M Detects the surface potential of the drum M 30 Drum potential sensor Y DRPS Y Detects the surface potential of the drum Y DRDB Y Drum drive board Y Drive board for the drum motor Y M14 DRDBM Drum drive board M Drive board for the drum motor M M15 DRDB C Drum drive board C Drive board for the drum motor C M16 DRDBK Drum drive board K Drive board for the drum motor K M17 M14 Drum motor Y Drives the drum Y M15 Drum motor M Drives the drum M E M16 Drum motor C Drives the drum C 2 M17 Drum motor Jk Drives the drum K amp 560 Encoder sensor Y1 Detects the rotation of the encoder for the
109. tion even after the toner supply operation above is made it is considered that no toner is left in the bottle And a no toner message is shown on the operation LCD 6 2 2 Toner supply control to the developing unit A When power on Each of the toner density sensors Y M C and K TDS Y M C and K detects the toner density in each developing unit the specified period of time after the main switch SW2 is turned on When a value detected at this time is below the reference value of the toner density that is stored in the CPU on the printer control board PRCB the toner supply motors Y JM C and K M49 M50 M51 and M52 are turned on to supply toner up to the specified density B While in the copy print operation While in the copy print operation each of the toner density sensors Y M C and K TDS Y M C and K monitors the toner density The output voltage of each of TDS Y M C and K determines the length of the toner supply time which is activated by turning on each of the toner supply motors Y M C and K M49 M50 M51 and M52 so that it becomes the reference value of the toner density CF5001 Ver 1 0 Sep 2003 TONER SUPPLY 6 2 3 operation stop control due to no toner After the no toner display is shown on the operation LCD the consumption of about 50g of remaining toner in the toner hopper is detected by the length of time during which the toner supply motor has been driven Wh
110. trol in the paper feed tray 1 z Q z lt EI X 2 8 2 1 Paper feed control Paper feed motor M41 Pick up solenoid 1 SD7 Paper feed clutch 1 MC7 Pre registration sensor 1 PS29 Intermediate conveyance sensor 1 PS27 Intermediate conveyance clutch 1 MC13 Pre registration clutch 1 MC8 2 3 8050 2048 1 START button ON 3 2nd sheet pre registration loop 2 1stsheet pre registration loop 2 40 CF5001 Ver 1 0 Sep 2003 PAPER FEED TRAY 1 TO 3 8 2 2 Up down plate control The up down plate in the paper feed tray is driven by the wire When the paper feed tray 1 is set to the main body the tray up drive motor 1 M40 of the main body starts to rotate As result the wire is wound around the drive pulley and the up down plate goes up When the tray upper limit sensor 1 PS30 detects the upper limit of paper the M40 turns off When the amount of paper gets reduced as result of the passage of paper no paper detection is made by the PS30 At this time the M40 keeps on until the PS30 detects the upper limit of paper again Accordingly paper is lifted up to the fixed level at all times When the paper feed tray 1 is pulled out the coupling is released from the drive section and the up down plate goes down by its own weight 8 23 Remaining paper detection control The amount of remaining paper is detected by the remain
111. ust be handled with care A risk of fire exists 5 8 SAFETY AND IMPORTANT WARNING ITEMS NDANGER HANDLING OF SERVICE MATERIALS Do not replace the cover or turn the copier ON before any solvent remnants on the cleaned parts have fully evaporated Q risk of fire exists 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 When using any solvent ventilate the room well Breathing large quantities of organic solvents can lead to discomfort 3 MEASURES TO TAKE IN CASE OF AN ACCIDENT e 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 e Ifa report of a serious accident has been received from a customer an on site evaluation must be carried out quickly and Minolta Corporation must be notified determine the cause of the accident conditions and materials must be recorded through direct on site checks in accordance with instructions issued by Minolta Corporation e For reports and measures concerning serious accidents follow the regulations given in Serious Accident Report Follow up Procedures 4 CONCLUSION e Safety of users and customer engineers depends highly on accurate maintenance and administration Therefore safety can be maintaine
112. utch 2 MC10 20 Pre registration roller 1 27 Drive coupling 1 21 Pre registration clutch 1 MC8 5 7 2 Vertical conveyance drive 8050 1010 1 Intermediate conveyance clutch 1 13 3 Drive coupling 2 Paper feed motor M41 4 Intermediate conveyance roller 1 l 2 O DRIVE SYSTEM DIAGRAM CF5001 Ver 1 0 Sep 2003 5 8 ADU drive 5 8 1 By pass tray drive 6 7 2 8 LU E 2 el 8050ma1011 1 Up down gear b Drive coupling 2 Paper feed roller BP 6 Feed roller BP 3 Double feed prevention roller BP 7 Paper feed clutch BP MC6 4 Paper feed motor M41 8 Tray up drive motor BP M35 CF5001 Ver 1 0 Sep 2003 DRIVE SYSTEM DIAGRAM 5 8 2 Registration drive loop drive E 2 3 2 8050 1012 1 Loop roller motor M31 3 Registration roller 2 Loop roller 4 Registration roller motor M30 LU E 2 el DRIVE SYSTEM DIAGRAM 5 8 3 ADU conveyance drive CF5001 Ver 1 0 Sep 2003 8050ma1013 1 2 3 4 5 6 7 8 9 Intermediate conveyance roller 2 Intermediate conveyance clutch 2 MC4 Paper feed motor M41 ADU pre registration roller ADU pre registration clutch MC3 ADU conveyance roller 1 ADU conveyance clutch 1 MC2 Timing belt ADU conveyance roller 2 10 11 12
113. veloper from the agitator screw to the developing sleeve Screw method 2 Collection screw Conveyance of developer from the scraper magnet roller to the collection sector Screw method 3 Agitator screw Agitation of developer and the conveyance of developer to the conveyance screw Screw method 4 Toner density sensor Y TDS Y Detection of toner density in the developing unit Y L detection method 5 Toner density sensor M TDS M Detection of toner density in the developing unit M L detection method 6 Toner density sensor C TDS C Detection of toner density in the developing unit C L detection method 7 Toner density sensor K TDS K Detection of toner density in the developing unit K L detection method 8 Developing unit Y Adhesion of yellow toner to the image transferred on the drum Y 2 24 CF5001 Ver 1 0 Sep 2003 DEVELOPING UNIT Symbol Name Function or method 9 Developing unit M Adhesion of magenta toner to the image transferred on the drum M 10 Developing unit C Adhesion of cyan toner to the image transferred on the drum C 11 Developing unit K Adhesion of black toner to the image transferred on the drum K 12 Developing sleeve Y Conveyance of developer to the drum Y surface by means of magnetic force Two component developing method yellow toner carrier Developing bias applied AC DC DC output range by con
114. veyance path 2 Q lt z gt lt E E 2 A Straight paper exit path The straight paper exit path is applicable to the face up paper exit after completion of copy in the single side copy mode as well as after completion of the back side copy in the double side copy mode 8050ma2023 1 Fixing paper exit sensor PS17 4 Paper exit roller 2 Reverse gate 5 Paper exit sensor PS13 3 Paper exit full sensor PS12 6 Fixing section 2 49 REGISTRATION ADU REVERSE PAPER EXIT CF5001 Ver 1 0 Sep 2003 B ADU conveyance path The ADU conveyance path is applicable to the face down paper exit in the single side copy mode and the conveyance to the ADU after completion of the front side copy in the double sided copy mode z z lt ESI gt lt z 2 8050ma2024 1 Fixing section 4 Reverse exit sensor PS19 2 Fixing paper exit sensor PS17 5 Reverse gate 3 gt roller 2 50 CF5001 1 0 Sep 2003 REGISTRATION ADU REVERSE PAPER EXIT C Straight paper exit operation single sided 2 copies Paper feed motor M41 Registration roller motor M30 Fixing motor M29 Reverse exit motor M33 2 Q lt
115. x 11R 8 5 x 14 11 x 17 12 x 18 18 x 19 wide paper 1 By pass feed B4 A4 B5 B5R 5 5 x 85H 8 5 x 11 8 5 x 11R 8 5 x 14 11 x 17 12 x 18 18 x 19 wide paper 1 ADU B4 A4 B5 B5R 5 5 x 8 5R 8 5 x 11 8 5 x 11R 8 5 x 14 11 x 17 12 x 18 18 x 19 wide paper 1 Tray 1 to 3 1 Wide paper is available up to 330 x 487 mm Magnification Warm up time for metric area for inch area Fixed magnification for metric area x 1 000 x 2 000 x 1 414 x 1 224 x 1 154 X 0 866 x 0 816 x 0 707 x 0 500 X 1 000 x 2 000 x 1 545 x 1 294 x 1 214 X 0 786 x 0 772 x 0 647 x 0 500 Special ratio magnification 3 types Zoom magnification X 0 250 to x 4 000 graduated at increment of 0 1 96 Vertical magnification X 0 250 to x 4 000 graduated at increment of 0 1 96 Horizontal magnification X 0 250 to x 4 000 graduated at increment of 0 1 96 at room temperature of 20 with rated voltage Less than 420 sec Less than 390 sec for inch area CF5001 Ver 1 0 Sep 2003 PRODUCT SPECIFICATIONS First copy time Full color Less than 7 6 sec platen mode life size manual density paper feed tray 1 to 3 plain paper without gloss face up paper exit A4 or 8 5x 11 Monochrome Less than 7 6 sec platen mode life size manual density paper feed tray 1 to 3 plain paper without gloss face up paper exit A4 or 8 5x 11 Black and white Less than 6 0 sec platen mode life size manual density
116. y capacity Up to 500 sheets 80 g m 2 38 CF5001 1 0 Sep 2003 PAPER FEED TRAY TO 3 Symbol Name Function or method 11 Feed roller 2 Feed of the tray 2 paper 12 Double feed prevention roller 1 Double feed prevention of the tray 1 paper 13 Paper feed roller 1 Paper feed of the tray 1 paper 14 Feed roller 1 Feed of the tray 1 paper 15 Pre registration roller 1 Conveyance of the tray 1 paper and the paper stopper plate for the correction of paper skew M41 Paper feed motor Driving of the paper feed system 24 VDC drive DC brushless motor PLL control M38 Tray up drive motor 3 Driving of the up down plate 3 24 VDC drive DC brushless motor M39 Tray up drive motor 2 Driving of the up down plate 2 24 VDC drive DC brushless motor M40 Tray up drive motor 1 Driving of the up down plate 1 24 VDC drive DC brushless motor MC7 Paper feed clutch 1 Transmission of the driving force from the paper feed motor M41 to the paper feed roller 1 24 VDC drive MC8 Pre registration clutch 1 Transmission of the driving force from the paper feed motor M41 to the pre registration roller 1 24 VDC drive 9 Paper feed clutch 2 Transmission of the driving force from the paper feed motor M41 to the paper feed roller 2 24 VDC drive MC10 Pre registration clutch 2 Transmission of the driving
117. y to the cam The detection of pressure release is made by the fixing pressure release sensor PS16 provided on the same shaft as the cam 2 Q lt z gt lt E E 2 2 8050ma2045 B Pressure release control Pressure on the fixing roller L is released while in warm up When copy starts the fixing motor M29 rotates reversely to apply pressure and it stops when the fixing pressure release sensor PS16 turns off The unit is now in the pressured state M29 returns to the forward rotation to convey paper Fixing motor M29 Forward Backward Fixing pressure release sensor PS16 i 1 8050ma2046 1 START button ON 3 Fixing paper in conveyance 2 Pressure operation 2 63 FIXING UNIT CF5001 Ver 1 0 Sep 2003 12 2 3 Web control The web motor M54 is driven for a specified period of time for each print to clean the fixing roller U through the cleaning roller The operation of M54 starts at the same time as the registration roller motor M30 In order to make web travel distance even on the cleaning roller the ON time of M54 is determined by the accumulated M54 drive time 12 2 4 Temperature control The fixing roller U is heated by the fixing upper lamp 1 L2 and the fixing upper lamp 2 L3 The fixing roller L heated by the fixing lower lamp 2 L4 L2 and L3 are connected in parallel and they turn on and off at the same time

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