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SERVICE MANUAL
CODE: 00ZSF1120SM/E
MODEL SF-1020
MODEL SF-1120
Option • Paper tray (SF-UB15)
SF-1020
• Two-step paper feed unit (SF-CM15)
• One-step paper feed unit (SF-CM16)
• Personal counter (SF-71A/71B)
• 10-bin sorter (SF-S17N) @
• 10-bin staple sorter (SF-S54) @
• Auto document feeder (SF-A18) @
• Reverse automatic document feeder
(SF-A57) @
SF-1120
@ For the options, refer to their service manuals.
CONTENTS
[ 1 ] PRODUCT OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Contents 8. Toner supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 [1] PRODUCT OUTLINE . . . . . . . . . . . . . . . . . . . 1-1 9. Center shift adjustment . . . . . . . . . . . . . . . . . . . 4-7 1. Product features . . . . . . . . . . . . . . . . . . . . . . . . 1-1 10. Label attachment . . . . . . . . . . . . . . . . . . . . . . . . 4-7 2. System configuration (options) . . . . . . . . . . . . . 1-1 A. Label attachment . . . . . . . . . . . . . . . . . . . 4-7 [2] PRODUC
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1-8. Transport roller . . . . . . . . . . . . . . . . . . . . . 6-3 B. DB blade replacement (Replace every 120K copies.) . . . . . . . . 6-21 1-9. Lower paper feed roller/take-up roller . . . 6-3 C. V ring attachment . . . . . . . . . . . . . . . . . . 6-21 2. Transport unit . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3 D. Note for toner hopper drive gear (31T) 2-1. Resist roller, transfer roller . . . . . . . . . . . . 6-3 and stirring shaft attachment . . . . . . . . . 6-21 2-2.
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2-6. Process section adjustment . . . . . . . . . . 7-21 [8] SIMULATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 1. Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 2. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 3. Operating procedure . . . . . . . . . . . . . . . . . . . . . 8-1 4. List of simulations . . . . . . . . . . . . . . . . . . . . . . . 8-2 5. Details of simulations . . . . . . . . . . . . . . . . . . . . 8
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[1] PRODUCT OUTLINE 1. Product features (1) Compact body (2) Clean copy gentle to the environment • Compact body size • Silent design, The body width of 600mm is the smallest in the class. • Low level of ozone, use of recyclable materials • The employment of the front loading tray and the folding-type multi • The energy-saving mode reduces the power consumption. manual paper feed cassette realizes the small occupying area. (3) High capacity of copying • Warm-up time is less than 45 sec. The firs
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(10) Void width [2] PRODUCT SPECIFICATIONS Void area: Lead edge/rear edge: 3mm or less Image loss Normal: 4mm or less (11) Paper exit/finishing 1. Basic specifications Paper exit tray capacity: 250 sheets (1) Type: Table top Finishing: option 10-bin sorter, 10-bin staple sorter (2) Copy speed: (12) Additional functions Function Remark Enlargement Reduction Normal SF-1020 SF-1120 (Magnification) (Magnification) 1 Auto Paper 8 ⁄2″ × 13″: only the A3 11 sheets/min 10 sheets/min 10 sh
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(2) Optical section 2. Description of each section Light source Halogen lamp (1) Paper feed section Exposure system Slit exposure by moving the light source SF-1020 SF-1120 Zooming system By changing the lens positions and the scan Copying size A3 ~ A6/W letter ~ Invoice speed. Paper feed 2 trays + multi 1 tray + multi Lens Fixed focus lens system manual feed manual feed (3) Process Paper feed 250 sheets × 2250 sheets × 1 capacity Charging system (–) DC saw teeth electrode system Transfer syste
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3. Supply parts Brazil/Asia except Hong Kong Name Contents Life Product name 1 OPC Drum kit OPC Drum × 1 50K SF-216DR Cleaner Blade × 1 Drum Separation Pawl × 2 Separation Pawl Spring × 2 2 Black Developer Black developer × 10 50K × 10 SF-216CD1 (SF-216SD1 × 10) 3 Black Toner Black Toner Bottle (240 g) × 10 6K × 10 SF-116CT (SF-116ST × 10) 4 Upper Heat Roller Kit Upper Heat Roller × 1 100K SF-216UH Upper Separation Pawl × 4 Fusing Bearing (F) × 1 5 Lower Heat Roller Kit Lower Heat Roller × 1 100
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Functions 4. Optional specifications Original detection on the Available (For originals of indefinite (1) Automatic document feeder (ADF) tray sizes, scanning is made.) Detection size Japan: A3, B4, A4, A4R, B6, B6R Inch series: 11" × 17", 8 1/2" × 14", 8 Original set direction Face up 1/2" × 11", 8 1/2" × 11"R, 8 1/2" × 5 1/2" E× AB series: A3, B4, A4, A4R, A5 Original set position Center reference Original mixture Allowed (However, no linkage with the Original transport sy
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(4) 10-bin staple sorter (10-bin SS) (5) Two-step paper feed unit Type Copier installation type/hanging type Paper size A3 ~ A5 Distribution system Bin shift system by lead screw Paper feed capacity 250 sheets × 2 steps 2 No. of bins 10 bins (The top bin is commonly used Paper weight 56 ~ 80g/m (15 ~ 21 lbs) for non-sort. Paper kind Standard paper, recycled paper Capacity 30 sheets for each bin 2 Size selection Tray replacement/user handling (A4, 8 1/2"
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[3] PRODUCT VIEWS 1. External view and internal structure 6 7 8 1 2 5 3 9 10 4 11 12 13 5 15 17 18 14 16 Upper unit 20 19 Lower unit No. Name No. Name No. Name 1 Original stocker 2 Original cover 3 Original table 4 Paper exit tray 5 Grip 6 Manual feed unit 7 Manual feed original guide 8 Manual feed tray 9 Operation panel F Front cover G Power switch H Paper tray (SF-1020), Duplex tray (SF-1120) I Paper tray J Developing unit grip K Developing unit strap L Toner hopper M Developing unit
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2. Operation panel SF-1020 (AB series) 16 1 17 2 20 21 3 4 5 6 8 7 9 10 11 12 13 SORTER ORIGINAL PAPER PRESET EXPOSURE 200% POWER SAVE AUDIT CLEAR SIZE SIZE RATIO DUAL PAGE A3 141% 12 3 SORT AUTO COPY 122% MANUAL A4 115% PHOTO A4 STAPLE 100% 4 5 6 MARGIN A5 SORT 86% SHIFT B4 81% ZOOM INTERRUPT GROUP 7 8 9 EXTRA 13 2 4 5 70% CA % AUTO PAPER SELECT 50% EDGE ERASE LIGHT DARK ORIGINAL SIZE 0/ C TRAY SELECT AUTO IMAGE ENTER 15 18 19 33 23 22 24 25 26 27 28 29 30 31 32 14 (Inch series) 1 17 2 20 21 3
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SF-1120 (AB series) 16 1 17 2 20 21 3 4 5 6 8 7 9 10 11 12 13 ORIGINAL ORIGINAL PAPER SORTER EXPOSURE PRESET 200% POWER SAVE AUDIT CLEAR TO COPY SIZE SIZE RATIO DUAL PAGE 12 3 1 2 A3 141% SORT 1 AUTO COPY EVEN A4 122% MANUAL NUMBER 115% A4 ODD PHOTO STAPLE 4 5 6 100% NUMBER A5 MARGIN 86% SORT 2 2 SHIFT B4 81% INTERRUPT ZOOM GROUP 2 11 EXTRA 7 8 9 70% CA 13 2 4 5 % PRE-COUNT 50% AUTO PAPER SELECT EDGE ORIGINALS ERASE LIGHT DARK ORIGINAL SIZE 0/ C TRAY SELECT AUTO IMAGE ENTER 15 33 18 19 34 23 25
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3. Clutches, solenoids, and motors (Explained with the SF-1120 and the SF-CM15) Clutches and solenoids 10 20 13 25 12 26 9 22 11 23 24 1 15 19 2 3 8 21 4 14 16 5 17 6 18 7 No. Signal name Name Functions, operations 1 PSPS Paper separation solenoid Paper separation solenoid drive 2 RRC Resist roller clutch For resist roller rotation 3 TRC Transport roller clutch For transport roller rotation 4 CPFC1 Tray paper feed clutch (Paper is fed from the ADU in the SF-1120) For paper feed roller rotation 5
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4. PWB (Explained with the SF-1120 and the SF-CM15) 1 2 3 4 5 21 7 6 18 8 20 19 9 10 23 17 11 22 16 15 14 13 12 No Name Description No Name Description 1 Operation PWB A Operation input, display control 2 Operation PWB B Operation input, display control 3 Blank lamp PWB Used to control the blank lamp. 4 DL PWB Used to drive the discharge lamp. 5 Optical PWB AE sensor and lens motor interface 6 Process control PWB Used to sense the toner density. 7 Main PWB Used to control the body. 8 AC circuit
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5. Sensors and switches (Explained with the SF-1120 and the SF-CM15) 2 3 5 4 6 29 30 7 31 1 10 28 27 8 9 23 12 11 16 13 17 14 18 15 19 24 25 26 20 21 22 For the ADU sensor, refer to page 5-18. No. Signal name Name Type Operation, function 1 TCS Toner density control sensor Transmission sensor HIGH when toner density falls. 2 ILSW Front cabinet open/close switch Interlock switch ON when closed. 3 MSW Power switch Seesaw switch 4 TH Fusing heater ther
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6. Rollers, mirrors, etc. 30 29 28 20 19 18 3 4 17 7 34 16 6 5 8 14 15 12 13 11 9 32 44 33 ADU 45 39 40 46 31 27 26 25 24 23 22 21 43 42 41 38 No. Name No. Name No. Name 1 No. 3 mirror 2 No. 2 mirror 3 No. 1 mirror 4 Copy lamp 5 No. 4 mirror 6 No. 5 mirror 7 No. 6 mirror 8 Developing unit toner box 9 Manual tray F — G Take-up roller H Paper feed roller I Reverse roller J PS front roller follower roll K PS front roller L Developing unit M Blank lamp N Main charger unit O Photoconductor drum P Cle
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2 Avoid high temperature and high humidity, and avoid sudden [4] UNPACKING AND INSTALLATION temperature change. (Avoid installation near a cooler or a heater.) If not, paper absorbs moisture and dew forms in the machine, causing paper jam or degraded image quality. 1. Unpacking (Standard condition): The best condition to use the machine. 20 ~ 25°C: 65±5%RH (Temperature and humidity): 15 ~ 30°C 20% ~ 85% RH 35°C for 65% % HR 85 65 Humidity 20 15 30 35 ˚C Packing material/accessor
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5 Avoid installation to a poorly ventilated place. (5) Grounding wire connection 1 Connect the grounding wire to prevent against a danger. 2 When connecting the grounding wire, connect only to the ground- ing object (the grounding terminal of the power outlet, etc.) and never connect to a gas pipe. 6 Avoid installation to a place where there are flammable materials or ammonia gas, etc. If the machine is installed near a diazo copier, the picture quality may be degraded and malfunctions may oc
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3. Optical system lock release 4. Charger cleaning A. No. 2/3 mirror unit lock release A. Main charger unit electrode cleaning Remove the one fixing screw of the No. 2/3 mirror unit on the left side 1 Press the hook section of the main charger unit to release lock, of the copier. and pull out and remove the main charger unit from the copier. Hook Mirror unit fixing screw main charger unit 2 Remove one fixing screw of the main charger unit (on the back side). Fixing screw Electrode section B. Le
