Page 2 - I OUTLINE; CONTENTS; OUTLINE
CF5001 Ver.1.0 Sep. 2003 CONTENTS i I OUTLINE II UNIT EXPLANA TION CONTENTS SAFETY AND IMPORTANT WARNING ITEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S-1 IMPORTANT NOTICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 3 - II
CONTENTS CF5001 Ver.1.0 Sep. 2003 ii I OUTLINE II UNIT EXPLANA TION 6.11 2nd transfer roller /L cleaning (Sub step 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28 6.12 Toner collection (Sub step 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 6 - IMPORTANT NOTICE; DANGER; :Action having a possibility of suffering death or serious injury; CAUTION; property damage
SAFETY AND IMPORTANT WARNING ITEMS S-1 Read carefully the Safety and Important Warning Items described below to understand them before doing ser- vice work. Because of possible hazards to an inexperienced person servicing this copier as well as the risk of damage to the copier, Minolta Corporation s...
Page 7 - MODIFICATIONS NOT AUTHORIZED BY MINOLTA; SAFETY WARNINGS; DANGER : PROHIBITED ACTIONS
SAFETY AND IMPORTANT WARNING ITEMS S-2 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 m...
Page 8 - CHECKPOINTS WHEN PERFORMING ON-SITE SERVICE; WARNING: Power Plug and Cord; kw
SAFETY AND IMPORTANT WARNING ITEMS S-3 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 inju...
Page 14 - DANGER : HANDLING OF SERVICE MATERIALS
SAFETY AND IMPORTANT WARNING ITEMS S-9 3. MEASURES TO TAKE IN CASE OF AN ACCIDENT • If an accident has occurred, the distributor who has been notified first must immediately take emergency measures to provide relief to affected persons and to prevent further damage. • If a repor t of a serious accid...
Page 15 - SAFETY INFORMATION; IMPORTANT INFORMATION
SAFETY AND IMPORTANT WARNING ITEMS S-10 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 ce...
Page 16 - Overall protection circuit; SAFETY CIRCUITS
SAFETY AND IMPORTANT WARNING ITEMS S-11 This machine is provided with the following safety circuits to prevent machine faults from resulting in serious accidents. • Overall protection circuit • Fixing upper lamp /1 (L2), Fixing upper lamp /2 (L3), Fixing lower lamp (L4) overheating prevention circui...
Page 17 - prevention circuit
SAFETY AND IMPORTANT WARNING ITEMS S-12 2. Fixing upper lamp /1 (L2), Fixing upper lamp /2 (L3), Fixing lower lamp (L4) overheating prevention circuit 2.1 Protection by software The output voltage from fixing temperature sensor /1 (TH1) and fixing temperature sensor /2 (TH2) is read by the CPU. If t...
Page 18 - INDICATION OF WARNING ON THE MACHINE
SAFETY AND IMPORTANT WARNING ITEMS S-13 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. CAUTION INDICATION OF WARNING ON THE MACHINE Please adhe...
Page 25 - PRODUCT SPECIFICATIONS
PRODUCT SPECIFICATIONS CF5001 Ver.1.0 Sep. 2003 1-2 I OUTLINE 2. PRODUCT SPECIFICATIONS A. Type Type: Console type (floor-mounted type) Copying method: Tandem intermediate transfer type electrostatic method Original table: Fixed Original alignment: Rear left side as reference Photosensitive material...
Page 27 - E. Maintenance and life
PRODUCT SPECIFICATIONS CF5001 Ver.1.0 Sep. 2003 1-4 I OUTLINE C. Copy paper Standard specified paper: For full color: Neusiedler Color Copy 90g/m 2 Hammermill Tidal 75 g/m 2 For black-and-white: Konica Business Class 80 g/m 2 Hammermill Laser Color Copy Photo White/ Brightness 96 105 g/m 2 Ordinary ...
Page 28 - CENTER CROSS SECTION
CF5001 Ver.1.0 Sep. 2003 CENTER CROSS SECTION 1-5 I OUTLINE 3. CENTER CROSS SECTION [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 unit /Y [15] ADU [5] Write unit /M [16] Reverse section [6] Write unit ...
Page 31 - DRIVE SYSTEM DIAGRAM; Drum drive
DRIVE SYSTEM DIAGRAM CF5001 Ver.1.0 Sep. 2003 1-8 I OUTLINE 5. DRIVE SYSTEM DIAGRAM 5.1 Drum drive [1] Drum motor /Y, /M, /C, /K (M14, M15, M16, M17) [2] Drum [1] [2] 8050ma1003
Page 32 - Transfer belt conveyance/pressure drive
CF5001 Ver.1.0 Sep. 2003 DRIVE SYSTEM DIAGRAM 1-9 I OUTLINE 5.2 Transfer belt conveyance/pressure drive [1] 1st transfer roller /Y [9] Belt drive roller [2] Drum [10] While in stand-by (Total release) [3] [4] 1st transfer roller /M 1st transfer roller /C [11] Black-and-white mode (Pressure on 1st tr...
Page 33 - Developing drive
DRIVE SYSTEM DIAGRAM CF5001 Ver.1.0 Sep. 2003 1-10 I OUTLINE 5.3 Developing drive [1] Toner collection screw [5] Toner conveyance screw [2] Toner agitator screw [6] Developing coupling /1 [3] Developing coupling /2 [7] Developing sleeve [4] Developing motor /Y, /M, /C, /K (M20, M21, M22, M23) 8050ma...
Page 34 - Toner supply drive
CF5001 Ver.1.0 Sep. 2003 DRIVE SYSTEM DIAGRAM 1-11 I OUTLINE 5.4 Toner supply drive [1] Toner supply gear /A (Same shaft as C) [8] Toner supply motor /C (M51) [2] Toner bottle clutch /Y (MC14) [9] Toner bottle motor (M53) [3] Toner bottle clutch /M (MC15) [10] Toner supply motor /M (M50) [4] Toner b...
Page 35 - Toner collection drive
DRIVE SYSTEM DIAGRAM CF5001 Ver.1.0 Sep. 2003 1-12 I OUTLINE 5.5 Toner collection drive [1] Drum waste toner receiving port [5] Vertical conveyance pipe [2] Horizontal conveyance screw [6] Belt collection screw [3] Horizontal conveyance pipe [7] Transfer belt motor (M18) [4] Paper feed motor (M41) [...
Page 36 - Fixing drive
CF5001 Ver.1.0 Sep. 2003 DRIVE SYSTEM DIAGRAM 1-13 I OUTLINE 5.6 Fixing drive [1] Web motor (M54) [5] Fixing roller /L [2] Fixing roller /U [6] Fixing motor (M29) [3] One-way clutch [7] Fixing paper exit roller [4] Pressure/release cam FRONT 8050ma1008 [2] [1] [3] [4] [5] [6] [7] [1]
Page 37 - Paper feed drive
DRIVE SYSTEM DIAGRAM CF5001 Ver.1.0 Sep. 2003 1-14 I OUTLINE 5.7 Paper feed drive 5.7.1 Paper feed tray /1 to /3 drive [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 ...
Page 39 - ADU drive
DRIVE SYSTEM DIAGRAM CF5001 Ver.1.0 Sep. 2003 1-16 I OUTLINE 5.8 ADU drive 5.8.1 By-pass tray drive [1] Up/down gear [5] 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 mot...
Page 43 - Main body paper exit drive
DRIVE SYSTEM DIAGRAM CF5001 Ver.1.0 Sep. 2003 1-20 I OUTLINE 5.9 Main body paper exit drive [1] Reverse gate [4] Reverse/exit roller /2 [2] Drive coupling [5] Timing belt [3] Reverse/exit motor (M33) [6] Paper exit roller 8050ma1015 [3] [4] [1] [2] [5] [6]
Page 45 - IMAGE CREATION PROCESS; Image creation flow and function
IMAGE CREATION PROCESS CF5001 Ver.1.0 Sep. 2003 1-22 I OUTLINE 6. IMAGE CREATION PROCESS 6.1 Image creation flow and function Step Process Function Step 1 Charging process Forms the layer of charges on the photosensitive drum. Step 2 Laser exposure process Form an electrostatic latent image on the p...
Page 54 - Composition
CF5001 Ver.1.0 Sep. 2003 SCANNER 2-1 II UNIT EXPLANA TION II UNIT EXPLANATION 1. SCANNER 1.1 Composition Symbol Name Function or method [1] CCD board (CCDB) Conver ts an analog signal to a digital signal [2] DF reset read switch (RS1) Detects whether the platen cover or RADF is closed Magnet sensor ...
Page 55 - Operation; Home position search in the exposure unit
SCANNER CF5001 Ver.1.0 Sep. 2003 2-2 II UNIT EXPLANA TION 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 star t button is turned on. The operation may different depending on the state of the scanner HP...
Page 63 - II UNIT EXPLANA
SCANNER CF5001 Ver.1.0 Sep. 2003 2-10 II UNIT EXPLANA TION D. Other image 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 (...
Page 66 - Image writing
CF5001 Ver.1.0 Sep. 2003 WRITE 2-13 II UNIT EXPLANA TION 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 ...
Page 76 - Image formation timing
CF5001 Ver.1.0 Sep. 2003 DRUM UNIT 2-23 II UNIT EXPLANA TION 3.2 Operation 3.2.1 Image formation timing [1] Paper feed start [2] 2nd transfer cleaning 8050ma2012 [2] [1] Paper feed motor (M41) Drum motor /Y (M14) Drum motor /M (M15) Drum motor /C (M16) Drum motor /K (M17) Transfer belt motor (M18) 1...
Page 79 - Flow of developer
DEVELOPING UNIT CF5001 Ver.1.0 Sep. 2003 2-26 II UNIT EXPLANA TION 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 t...
Page 80 - Specification of the durability of the developer
CF5001 Ver.1.0 Sep. 2003 DEVELOPING UNIT 2-27 II UNIT EXPLANA TION 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...
Page 81 - TRANSFER BELT UNIT
TRANSFER BELT UNIT CF5001 Ver.1.0 Sep. 2003 2-28 II UNIT EXPLANA TION 5. TRANSFER BELT UNIT 5.1 Composition 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...
Page 83 - Transfer belt pressure/release mechanism
TRANSFER BELT UNIT CF5001 Ver.1.0 Sep. 2003 2-30 II UNIT EXPLANA TION 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 tra...
Page 87 - Toner supply control to the toner hopper section
TONER SUPPLY CF5001 Ver.1.0 Sep. 2003 2-34 II UNIT EXPLANA TION 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...
Page 90 - Toner collection control
CF5001 Ver.1.0 Sep. 2003 TONER COLLECTION 2-37 II UNIT EXPLANA TION 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...
Page 93 - Paper feed control
PAPER FEED TRAY /1 TO /3 CF5001 Ver.1.0 Sep. 2003 2-40 II UNIT EXPLANA TION 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...
Page 97 - Tray up drive control
BY-PASS FEED CF5001 Ver.1.0 Sep. 2003 2-44 II UNIT EXPLANA TION 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...
Page 98 - VERTICAL CONVEYANCE; Vertical conveyance control
CF5001 Ver.1.0 Sep. 2003 VERTICAL CONVEYANCE 2-45 II UNIT EXPLANA TION 10. VERTICAL CONVEYANCE 10.1 Composition 10.2 Operation 10.2.1 Vertical conveyance control For operation timing of the ver tical conveyance control, see "8. Paper feed tray /1 to /3." Symbol Name Function or method [1] Ve...
Page 119 - IMAGE STABILIZATION CONTROL; Toner density control; Explanation of the operation; Explanation of the operation
IMAGE STABILIZATION CONTROL CF5001 Ver.1.0 Sep. 2003 2-66 II UNIT EXPLANA TION 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 ...
Page 120 - Charging potential control
CF5001 Ver.1.0 Sep. 2003 IMAGE STABILIZATION CONTROL 2-67 II UNIT EXPLANA TION 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...
Page 121 - Dot diameter adjustment control; Gamma correction control
IMAGE STABILIZATION CONTROL CF5001 Ver.1.0 Sep. 2003 2-68 II UNIT EXPLANA TION 14.4 Dot diameter adjustment control The dot diameter adjustment control is a method by which intermediate exposure potential is output stably, regardless of the changes in the sensitivity of photosensitive materials or t...
Page 122 - Parts to which power is supplied even when the reset switch is
CF5001 Ver.1.0 Sep. 2003 OTHER CONTROLS 2-69 II UNIT EXPLANA TION 15. OTHER CONTROLS 15.1 Parts to which power is supplied even when the reset switch is turned off Regardless of the on/off position of the reset switch (SW1), the following components are supplied with power so long as the power cord ...
Page 123 - Parts that operate only when the power switch is turned on; Parts that operate when the reset switch is turned on
OTHER CONTROLS CF5001 Ver.1.0 Sep. 2003 2-70 II UNIT EXPLANA TION 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 When the reset switch (SW1) turns on, AC power is supplied to the DC power unit /1 (DCPS1), AC drive board (A...
Page 125 - Operation board control; Operation board composition
OTHER CONTROLS CF5001 Ver.1.0 Sep. 2003 2-72 II UNIT EXPLANA TION 15.4 Operation board control 15.4.1 Operation board composition 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 sort...
