Konica Minolta 7055 Service Handbook
Konica Minolta 7055 Service Handbook

Konica Minolta 7055 Service Handbook

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7055
SERVICE HANDBOOK
Jan. 2000
Ver. 1.0
KONICA CORPORATION
TECHNOLOGY SUPPORT CENTER
TOKYO JAPAN
KCS705510

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Summary of Contents for Konica Minolta 7055

  • Page 1 7055 SERVICE HANDBOOK Jan. 2000 Ver. 1.0 KONICA CORPORATION TECHNOLOGY SUPPORT CENTER TOKYO JAPAN KCS705510...
  • Page 2 This model is a derivative of the Konica 7065. Also, this service handbook includes only the differences between the 7065 and 7055, and the items that have been changed. Refer to the 7065 Service Handbook for items not included in this new service handbook.
  • Page 3: Table Of Contents

    [1] Product specification ........... 1-1 [2] Mechanism ............1-1 [3] Electrical control ..........1-1 2. DIAGRAMS 7055 TIMING CHART (A4, LIFE SIZE, TWO COPIES, UPPER PAPER FEED) ..........2-1 7055 ADU TIMING CHART (A4, TWO ORIGINALS, TWO SHEETS SET) ..........2-2 3.
  • Page 4: Safety And Important Warning Items

    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 service work. IMPORTANT NOTICE Because of possible hazards to an inexperienced person servicing this equipment, as well as the risk of damage to the equipment, Konica Corporation, strongly recommends that all servicing be performed only by Konica-trained service technicians.
  • Page 5 SAFETY AND IMPORTANT WARNING ITEMS IMPORTANT WARNING ITEMS [1] UNAUTHORIZED MODIFICATIONS [2] GENERAL SAFETY GUIDELINES Konica copiers have gained a reputation for being reliable This copier has been examined in accordance with the laws products. This has been attained by a combination of outstand- pertaining to various product safety regulations prior to leaving ing design and a knowledgeable service force.
  • Page 6 SAFETY AND IMPORTANT WARNING ITEMS [3] SAFEGUARDS DURING SERVICE CALLS [5] ACTION TO TAKE IN THE EVENT OF A SERIOUS ACCIDENT CAUTION: (1) If an accident occurs, the sales company or dealer that (1) Confirm that all screws, parts, wiring and connector was notified of the accident first must take necessary which are removed during maintenance are installed emergency action to assist any injured persons and also...
  • Page 7 SAFETY AND IMPORTANT WARNING ITEMS SAFETY CIRCUITS [2] L1 (exposure lamp) Overheating The electrical circuit of this machine contains the following safety circuits to prevent an accident from occurring in the Protection Circuit event of an abnormality. [1] Overall safety circuit protector [2] L1 (exposure lamp) overheating protection circuit [3] L2, L3, L4 (fixing heater lamp) overheating protection circuit...
  • Page 8 SAFETY AND IMPORTANT WARNING ITEMS [3] L2, L3, L4 (fixing heater lamp) 3. Protection function provided by TS1 (thermostat (upper)) and TS2 (thermostat (lower)) Overheat-ing Protection Circuit This function turns OFF TS1 or TS2, directly cutting off the power to L2, L3 and L4, if the temperature of the either upper fixing roller or lower fixing roller exceeds the specified value.
  • Page 9 SAFETY AND IMPORTANT WARNING ITEMS INDICATION OF WARNING ON THE MACHINE The caution labels are attached to the machine areas, as shown below, where you are advised to pay special attention to avoid any dangerous situations or serious injury. CAUTION/ATTENTION/VORSICHT High Temperature ! Température élevée ! Heiße Oberfläche !
  • Page 10: List Of Difference

    LIST OF DIFFERENCE...
  • Page 11: List Of Major Differences Between Konica 7065 And Konica 7055

    LIST OF DIFFERENCE LIST OF MAJOR DIFFERENCES BETWEEN Konica 7065 AND Konica 7055 This product is based on Konica 7065. The following table shows the major differences: [1] Product specification Class Konica 7065 Konica 7055 Reason for change Specification 1. Copy speed...
  • Page 12: Diagrams

    DIAGRAMS...
  • Page 13: 7055 Timing Chart (A4, Life Size, Two Copies, Upper Paper Feed)

    7055 TIMING CHART (A4, LIFE SIZE, TWO COPIES, UPPER PAPER FEED) (sec) Time (sec) Symbol Item Main motor Drum motor 350mS Developing drive motor 335mS 174mS Optics drive motor Agitator screw motor Polygon motor M140 LCT Paper feed motor 440mS...
  • Page 14: 7055 Adu Timing Chart (A4, Two Originals, Two Sheets Set)

    7055 ADU TIMING CHART (A4, TWO ORIGINALS, TWO SHEETS SET) (sec) Time (sec) Symbol Item PS27 Fixing paper exit sensor PS14 Registration sensor M151 ADU paper feed motor PS301 Reversal point sensor PS302 Reversal paper feed point sensor SD160 Reversal gate solenoid...
  • Page 15: Adjustment

    ADJUSTMENT...
  • Page 16: Mode

    25 ADJUSTMENT 25 MODE [1] Setting Method [2] Setting Software DIP SW 1. Setting method A special operating mode called "25 Mode" has been pro- vided with this machine. This mode enables to rewrite the This setting specifies the software DIP SW on the soft- non-volatile storage and specify other various settings.
  • Page 17 25 ADJUSTMENT • The bit of the switch is written in the non-volatile RAM every time it is changed. • The numbers shown in the message area are defined as follows: Software Switch set mode 4 - 7 : 8-bit switch value is indicated in hexadecimal from 00 to FF.
  • Page 18 25 ADJUSTMENT <List of Software Switch> : The boxes with thick lines indicate factory settings. DIPSW No. Function Operation when key counter is removed (when using as a copier) Ignore Instantaneous stop jam (Note) A3 (11 x 17) count method 1 count 2 count FNS number of stapled sheets upper limit stop select...
  • Page 19 25 ADJUSTMENT DIPSW No. Function Separation claw on timing * 11 * 11 * 11 * 11 ″ * 11 * 11 ″ DIPSW 6 * 11 * 11 ″ Separation claw off timing * 11 * 11 ″ * 11 * 11 ″...
  • Page 20 25 ADJUSTMENT DIPSW No. Function Tray screen OK key display (Effective when layer type menu screen is selected.) Magnification screen OK key display (Effective when layer type menu screen is selected.) Yes Density screen OK key display (Effective when layer type menu screen is selected.) Yes DIPSW 11 Copy mode OK key display (Effective when layer type menu screen is selected.) Yes Select time without OK (Effective when layer type menu screen is selected.) Short...
  • Page 21 25 ADJUSTMENT DIPSW No. Function Platen original size detection AB/inch Destination Both AB & inch series only – – – Platen original size minimum detection * 23 * 23 DIPSW 16 ″ * 23 * 23 ″ * 23 * 23 –...
  • Page 22 25 ADJUSTMENT * 1: FNS maximum number of stapled sheets * 7: Polygon motor low-speed timing select Mode Mode 15 sec. after job end 50 sheets 30 sec. after job end 45 sheets 60 sec. after job end 40 sheets 120 sec.
  • Page 23 25 ADJUSTMENT * 11: Separator claw ON setting * 12: Preferential tray when APS is canceled. Note: Separator jams occur in some cases when the set- Mode ting is changed. Select by destination Mode Tray 1 0 mm Tray 2 5 mm Tray 3 10 mm...
  • Page 24 25 ADJUSTMENT * 16: Set the WT daylight saving time * 22: Selects first selected tray in auto tray selection Note: Trays are searched as shown in the figure below, and Mode 10-3 10-2 10-1 10-0 selection of the first tray to be used is made. 0 min.
  • Page 25 25 ADJUSTMENT * 26: Selects erasure area in Auto Non-image Area Erasure Remarks: Mode. There is a non-image area erasure function setting in the This setting is related to the non-image area automatic erase key operator mode memory switch. When the copy paper is mode of the application function.
  • Page 26: Service

    SERVICE...
  • Page 27 SERVICE Main Precautions for Maintenance 1. Points to be confirmed before maintenance 4. After replacing a drum, be sure to reset a drum counter Before starting maintenance, ask a user and collect before image adjustment. After replacing developer, L information about troubles occurred on the machine detection adjustment must be conducted also.
  • Page 28: Service Schedule

    SERVICE SERVICE SCHEDULE [1] Service Schedule Number of copies Classifi- Guarantee period (5 years or 5,000,000 copies) Service (unit: 10,000) cation times Service item (cycles) 15 30 45 60 75 90 105 120 135 150 390 405 420 435 450 465 480 495 Maintenance 33 times (Every 150,000 copies)
  • Page 29: Maintenance Items

    SERVICE [2] Maintenance Items 1. Main body (Every 150,000 copies) Number Implementation classification Material used Classifi- Service item of parts Clean- Lubri- Replace- Check Supply Tools used cation replaced cation ment Prepara- (1) Image check tion (2) Kit contents check (3) 36 - 40 (Check of adjustment value, Dmax and γ...
  • Page 30 SERVICE Implementation classification Number Material used Classifi- Service item of parts Clean- Lubri- Replace- Check Supply Tools used cation replaced cation ment Developing (1) Developing bias intercept Blower brush & Cleaning pad unit (2) Developer (3) Developing unit Blower brush & Cleaning pad (4) Developing unit installation Transfer/ (1) Transfer/Separation corona unit...
  • Page 31 SERVICE Implementation classification Number Material used Classifi- Service item of parts Clean- Lubri- Replace- Check Supply Tools used cation replaced cation ment Paper (3) Sensors(5 positions of upper tray) Blower brush feed unit (4) Gears (upper tray) oiling Plus guard No. 2 (Main (5) Conveyance/driven roller Drum cleaner &...
  • Page 32 SERVICE Implementation classification Number Material used Classifi- Service item of parts Clean- Lubri- Replace- Check Supply Tools used cation replaced cation ment Paper (23) Gears Plus guard No. 2 feed unit (24) Conveyance roller (Upper and Drum cleaner & Cleaning pad (Main Lower) body/LCT)
  • Page 33 SERVICE Implementation classification Number Material used Classifi- Service item of parts Clean- Lubri- Replace- Check Supply Tools used cation replaced cation ment Final (1) Toner supply check (2) L detection (with new developer) 47 - 95 (3) W.U.T measure and check (4) Image check after changing consumables (5) Copy sample check...
  • Page 34 SERVICE 4. FNS [FS-106] (Every 150,000 copies) Number Implementation classification Material used of parts Classifi- Service item Clean- Lubri- Replace- Check Supply Tools used replaced ment cation cation Preparation (1) Paper through check Conveyance (1) Conveyance roller Drum cleaner & Cleaning pad unit (2) Swing roller 12QR5065*...
  • Page 35: Periodic Check (Main Body)

    SERVICE [3] Periodic Check (Main Body) 1. Periodic check (I) (Every 300,000 copies) Implementation classification Number Material used Classifi- Service item of parts Clean- Lubri- Replace- Check Supply Tools used cation replaced cation ment Fixing (1) Fixing roller/Upper unit 55FA5319* (2) Fixing claw/Upper 25SA5315* Apply Tri - flow...
  • Page 36 SERVICE 3. Periodic check (III) (Every 900,000 copies) Number Implementation classification Material used Classifi- Service item Clean- Lubri- Replace- of parts Check Supply Tools used cation cation ment replaced Paper (1) Feeding rubber/A Actual copy count: feed unit 25AA4001* 800K copies (2) Paper feeding rubber (by-pass) Actual copy count: 55FA4233*...
  • Page 37 SERVICE 5. Periodic check (V) (Every 3,000,000 copies) Number Implementation classification Material used Classifi- Service item Clean- Lubri- Replace- of parts Check Supply Tools used cation cation ment replaced Drum (1) Toner control board unit unit 25SA-910* Paper feed (1) Paper feed regulation gear/Upper unit 25SA7726* Charging...
  • Page 38: Periodic Check [Df-312]

    SERVICE [4] Periodic Check (RADF [DF-312]) 1. Periodic check (I) (Every 300,000 copies) Implementation classification Number Material used Classifi- Service item of parts Clean- Lubri- Replace- Check Supply Tools used cation replaced cation ment Paper (1) Paper feed roller Original: feed 120A4582* 90K feeds...
  • Page 39: Fns [Fs-108Bm]

    SERVICE [7] FNS [FS-108BM] 1. Periodic check (I) (Every 900,000 copies) Implementation classification Number Material used Classifi- Service item of parts Clean- Lubri- Replace- Check Supply Tools used cation replaced cation ment Stapler (1) Stapler unit 129U4266* Guarantee period of the Stapler unit is 200K staples.
  • Page 40: Actual Count Replacement Parts

    SERVICE [9] Actual Count Replacement Parts Use frequency of the following parts differs depending on the use condition. Replace the parts in accordance with the each part counter in EKC Unit Part number Parts name Q'ty Actual count Parts count No. Paper feed unit 12EF8251* Conveyance solenoid (Tray-1 feed section)
  • Page 41: Copy Materials

    SERVICE COPY MATERIALS [1] Maintenance Kit Construction 1. Construction (150,000 copies/kit) Name Quantity Name Quantity Developer Charging cover / Rear Cleaning blade Charging cleaning block / A assembly Toner guide roller Charging cleaning block / B assembly Cleaner idler gear Charging wire Fixing cleaning roller Discharging wire (transfer/separation corona unit)
  • Page 42 SERVICE Name Quantity Cleaning pad (10 sheets) Polyethylene gloves 1 set Dust bag (rubber band) Developer collecting sheet (rubber band) Vanity bag for collection Cotton swabs (4 pcs.) 4 - 15...
  • Page 43: Pm Kit Construction

    SERVICE [2] PM Kit Construction 1. Construction (150,000 copies/kit) Name Quantity Name Quantity Cleaning blade Charging cover / Rear Charging cleaning block / A assembly Toner guide roller Charging cleaning block / B assembly Cleaner idler gear Fixing cleaning roller Charging wire Oil impregnated roller Discharging wire (transfer/Separation corona unit)
  • Page 44 SERVICE Name Quantity Cleaning pad (10 sheets) Polyethylene gloves 1 set Dust bag (rubber band) Developer collecting sheet (rubber band) Vanity bag for collection Cotton swabs (4 pcs.) 4 - 17...
  • Page 45: Service Materials List

    SERVICE SERVICE MATERIALS LIST Material No. Description Shape Remark 000V-16-0 Drum cleaner 200 ml 000V-17-0 Roller cleaner 200 ml 00GR00020 Plus guard No. 2 25 g 00GR00150 Molytherm grease 25 g 000V-19-0 Setting powder 25 g 000V-18-0 Cleaning pad 10 pcs 1 pack 4- 18...
  • Page 46: Special Tools List

    SERVICE SPECIAL TOOLS LIST Tool No. Description Shape Quantity Remark Temp. sensor PS 7050K0010 adjusting jig Optics position 7050K0020 adjusting jig Door switch jig 00M6-2-00 Thermostat PS adjusting jig 00M8-1-00 (upper roller) Thermostat PS 00M8-2-00 adjusting jig (lower roller) 00VD-5000 New pyramid chart 4 - 19...
  • Page 47 SERVICE Tool No. Description Shape Remark Quantity 00VC-2-00 Drum cover 00VD-1000 Blower brush 00VE-1004 Tester (00VE-1004) DF-311/DF-312 PS jig 2pc/1set 120A1052* 120A9711* ADJ chart DF-311/DF-312 120A9712* White chart DF-311/DF-312 Stapler PS 129XJG011 FS-108BM 4- 20...
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