Sharp SF-1020 Servisní příručka

SERVICE MANUALCODE: 00ZSF1120SM/EMODEL SF-1020MODEL SF-1120Option • Paper tray (SF-UB15)• Two-step paper feed unit (SF-CM15)• One-step paper feed unit

(4) 10-bin staple sorter (10-bin SS)<Model name: SF-S54>Type Copier installation type/hanging typeDistribution system Bin shift system by lead s

Main code Sub code Content26 06 Destination settingUsed to set the destination (Japan, SEC, etc.).When this simulation is executed, the currently set

Main code Sub code Content26 20 Rear edge void settingUsed to set YES/NO of the paper rear edge void.When this simulation is executed, the currently s

Main code Sub code Content41 01 Original sensor checkUsed to display the judgement result of the original sensor on the operation panel LED. The origi

Main code Sub code Content42 (Note) Developer counter clearUsed to clear the currently installed developing unit counter and to display the developer

Main code Sub code Content44 06 Grid voltage correction compulsory executionThe grid voltage correction is forcibly executed during the simulation.Whe

Main code Sub code Content44 08 Grid voltage correction, optical dirt correction, drum membrane decrease correction data displayUsed to display each c

Main code Sub code Content44 10 Drum voltage correction drum surface data, patch data displayUsed to display the drum surface data and the patch data

Main code Sub code Content46 01 Exposure level adjustmentUsed to set the copy density (copy lamp output voltage) in each exposure mode.When this simul

Main code Sub code Content48 02 Paper transport direction magnification ratio adjustmentUsed to set the horizontal (paper transport direction) magnifi

Main code Sub code Content51 02 Resist amount adjustmentUsed to set the warp amount of paper in the resist section.When this simulation is executed, w

[3] PRODUCT VIEWS1. External view and internal structureNo. Name No. Name No. Name1 Original stocker 2 Original cover 3 Original table4 Paper exit tra

Main code Sub code Content53 06 ADF timing sensor adjustmentWhen this simulation is executed, the paper exit reverse sensor original judgement level i

(2) User simulation Simulation procedure StatePaper jam/Maintenance/Mini maintenance/Paper supply/Toner supply/Warning LEDCopyquantitydisplayCopybutto

[9] SELF DIAGNOSTICS1. Summary/purposeThis model has the self diag function for the following purposes:1) When a trouble occurs in the machine, the ma

Trouble code Sub code Content ConditionL1 00 Mirror feed trouble • When initializing, MHPS is not turned off within 1.5 sec fromstarting feeding of th

Trouble code Sub code Content ConditionF1 00 Sorter communication error • An error occurred in communication between the sorter andthe main unit. 02 T

[10] SERVICING AT MEMORY TROUBLE AND MAIN CONTROL PWB RE-PLACEMENT1. GeneralThe EEPROM in the control PWB and the EEPROM are storingvarious set values

NOYESNOYESNOYESNOYESNOYES1Is the tonerdensity reference valuerecorded?Use Sim 43-01 to set thefusing temperatureUse Sim 22-07 to set thedeveloper repl

4. Set value recording sheetMemorize set values in the column of "Set value" for efficient servicing when the memory trouble occurs and the

5. Memory simulation listPurpose/kind SectionContentsRef. pageMaincodeSubcodeDefaultvalueDescriptionAdjustmentPaper feed section51 02 50 Adjustment va

[11] MAINTENANCE1. Maintenance cycle and maintenance itemsMaintenance of the SF-1020/1120 should be performed at every 50K.<Content> ★ = Lubrica

2. Operation panelSF-1020(AB series)(Inch series)STAPLESORTSORTSORTERGROUPDUA L PAGECOPYMARGINSHIFTEDGE ERASEEXPOSUREAUTOMANUALPHOTO21345LIGHT DARKORI

[12] ELECTRICAL SECTION 1. System block diagramGNDVD2VFMPODPWBLMMIRMVHMOCSWORSLEDKOUGAKUPWBGNDVB1VB1VD1TFDPSPSCFMMMGNDVB1GNDGND VB1VD1MMREADFGNDGNDVD1

System operation when the power is turned on:Power ONNoNoJAMRPL ONPSW ONRPL OFFInitial settingMemory transferTroubleWarm upEnd ofwarm upRacingEnd of r

2. Main circuit(1) Block diagramORSLEDCFMPWMBLPWBLMAEDMSPROCONMMRTHDC PWBPRPR Q5PRIC20 IC14FET1IC21PCGMCGIC2IC17LED0,LED1,CFMPWMIC5TM0,TM1TMTMa,TMbVFM

(2) CPU (IC6) SC3041K12F1 General The CPU controls the loads of the main body and controls the systemin synchronization with data transmission and rec

4 Internal block diagramPS3/A19PS2/A18PS1/A17PS0/A16P27/A15P26/A14P25/A13P24/A12P23/A11P22/A10P21/A9P20/A8P17/A7P16/A6P15/A5P14/A4P13/A3P12/A2P11/A1P1

5 CPU SC3041K12F (IC1) pin signalPin No. Port Signal name IN/OUT H/L Specifications1 VCC VCC Power (+5V)2 P60 CVFMPWM OUT Fan motor (PWM output) signa

Pin No. Port Signal name IN/OUT H/L Specifications52 P27 A15 Address signal53 P50 A16 Address signal54 P51 LHPS IN L Lens home position signal (LOW at

(3) I/O (IC8) CXD1095Q1 General I/O converts data (command) from the CPU into control signals. The CXD1095Q is a general-purpose interface element, an

4 Internal block diagram5 I/O: CXD1095Q (IC8) pin signalPin No. PortSignalnameIN/OUT H/L Specifications1NC2NC3 PB1 DTR OUT L Option receive allow sign

Pin No. PortSignalnameIN/OUT H/L Specifications12 PC1 CPFC1 OUT H Tray 1 paper feed clutch control signal13 PC2 CPEC2 OUT Tray 2 paper feed clutch con

SF-1120(AB series)(Inch series)STAPLESORTSORTSORTERGROUPDUAL PAGECOPYMARGINSHIFTEDGE ERASEEXPOSUREAUTOMANUALPHOTO21345LIGHT DARKORIGINALSIZEPAPERSIZEA

(4) Detector circuit of sensor signalThe LS151 selects one signal of D0 ∼ D7 according to the combina-tion of SEL A ∼ C signals (H, L) and outputs it

(6) Heater lamp control circuit1 General The heater lamp control circuit detects the heat roller surfacetemperature with the thermistor, converts it i

[When the heat roller surface temperature is lower than the settemperature]a. Since the thermistor pin voltage is higher then the set level, theoutput

(9) AE (Auto Exposure) sensor circuitThe AE sensor circuit is composed of the AE sensor PWB; which is composed of the photo diode, the I-V convertor c

2 Operation• When "td" (= 30msec) passes after the voltage reaches 4.25V byturning on the power, the output is drive to HIGH."td"

(13) EnergyStar circuit descriptionThe EnergyStar circuit composition saves power consumption whenthe user leaves the machine with the power ON. Norma

(14) ADU circuit description(1) ADU circuit block diagramVHSUB DCPWBVBIC4VD1232DPFCDRRCCLUTCHDRRCDPFCIC3DRRCDPFC3DPHPS1DPHPS2DPED1DPHPS1DPHPS2DPED1SPP

(2) ADU CPU (IC1)1. OutlineThe CPU controls the loads of the ADU unit and performs data trans-mission through the copier main PWB and the serial data

4. Pin arrangement (FP-64A: Top view)5. ADU PWB Port ListPinNo.UsedPortSig. Name I/O Active Note1 P5-0 TXD O Copier UART signal2 P5-1 RXD I Copier UAR

PinNo.UsedPortSig. Name I/O Active Note42 A6 Address signal43 A5 Address signal44 A4 Address signal45 A3 Address signal46 A2 Address signal47 A1 Addre

3. Clutches, solenoids, and motors (Explained with the SF-1120 and the SF-CM15)Clutches and solenoidsNo. Signal name Name Functions, operations1 PSPS

IC8 (SLA4391) internal diagramSPM2 ASPM2-ASPM2 BSPM2-BPAM1 /APAM1 /BPAM1 APAM1 BVBCOM 9I1 1I2 2I3 3I4 4I5 5I6 6I7 7GND 8O716O615O514O413O312

4. PWB (Explained with the SF-1120 and the SF-CM15)No Name Description No Name Description1 Operation PWB A Operation input, display control 2 Operati

5. Sensors and switches (Explained with the SF-1120 and the SF-CM15) For the ADU sensor, refer to page 5

6. Rollers, mirrors, etc.No. Name No. Name No. Name1 No. 3 mirror 2 No. 2 mirror 3 No. 1 mirror4 Copy lamp 5 No. 4 mirror 6 No. 5 mirror7 No. 6 mirror

[4] UNPACKING AND INSTALLATION1. UnpackingPacking material/accessory listName Q’ty1 Paper exit tray 12 Instruction manual 13 Maintenance card 14 Dust

5 Avoid installation to a poorly ventilated place. 6 Avoid installation to a place where there are flammable materialsor ammonia gas, etc. If the mach

Contents[1] PRODUCT OUTLINE . . . . . . . . . . . . . . . . . . . 1-1 1. Product features . . . . . . . . . . . . . . . . . . . . . . . . 1-1 2. S

3. Optical system lock releaseA. No. 2/3 mirror unit lock releaseRemove the one fixing screw of the No. 2/3 mirror unit on the left sideof the copier.

4 Return the electrode section to the original position and fix it with ascrew. 5 Insert the main charger unit along the guide groove in the copierful

6 Hold the hand carry strap of the developing unit and insert it intothe copier fully to the bottom.7 Close the developing unit lever and close the fr

3 Hold the new toner bottle as shown and shake it four or five times.4 Open the toner hopper cover.5 Pour the toner evenly into the toner hopper.6 Clo

9. Center shift adjustmentThere is basically no need to perform the center shift adjustmentbecause it is made when shipping. If the center should be s

11. Optional two-step paper feed unit(SF-CM15) installationParts packed togetherDisconnect the power plug of the copier andperform the following proce

Connect the rear side of the copier with two connection screws C.6 Remove the connecter which is fixed to the rear cabinet of thetwo-stage paper feed

3. Placing the main copier unit over the paper feed unit[Note]• The following procedure should always be performed by two per-sons.Lift the main copie

8. Set the mode.Plug the copier into a grounded outlet and turn the power switchon.• Operate the keys on the copier to set the mode.The above key oper

3. Remove the size block upward, and fit to the suitablepaper size.Caution• When the tray paper size is changed, be sure to change the sizeblock.If no

1-8. Transport roller . . . . . . . . . . . . . . . . . . . . . 6-31-9. Lower paper feed roller/take-up roller . . . 6-3 2. Transport unit . . .

[5] DESCRIPTIONS OF EACHSECTIONDescriptions are made on the following sections:1 Paper feed section 2 Developing section 3 Optical section4 Process se

2. Developing section 1) General descriptions(1) Two-component developerThe developer is composed of toner and carrier. Carrier serves as a medium for

3) Basic operations(Cassette paper feed)When the CPFC (cassette paper feed clutch) is turned on, the paperfeed roller shaft, the paper feed roller, an

(1) Original tableThe original table is fixed. The original is set in the left center position.(2) Copy lamp100V series: 85V, 275W200V series: 170V, 3

(7) Lens drive shaftThis shaft controls the optical axis of the lens in zoom copy. The lensfollows along the slide base shaft.(8) Lens drive wireThis

(20) Original size sensingThe original size is sensed by the original interruption system.The LED in the rear frame side emits light to the table glas

(Optical system dirt correction)This model perform dirt correction by changing the copy lamp inten-sity according to the dirt degree in the optical sy

(4) Copy processThis model basic process and structure• The Scorotron method is used to evenly charge the photoconduc-tor surface to the given potenti

(2) Process diagramHigh voltage unitMain corona unitDischarge lampCleaning bladeWaste toner collectionPaper exitFusingHeat rollerHeater lampSeparation

(3) Details of image forming processStep 1 (Main Charging)By negative discharging of the main charger, uniform negative char-ges are applied to the OP

2-6. Process section adjustment . . . . . . . . . . 7-21[8] SIMULATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 1. Outline . . .

Step 3 (Development)Toner is attached to the latent static-electricity images on the drumsurface to change them to visible images. The two-component m

Step 4 (Transfer)The transfer paper is charged higher than the OPC drum surfacepotential by strong negative discharge of the transfer charger, makingt

Step 6 (Cleaning)Residual toner on the drum is removed by the cleaning blade. Theremoved toner is sent to the waste toner container by the waste toner

(4) Transition of photoconductor surface potential (5) Photoconductor drum sensitivity correctionIn this model, fall in sensitivity due to long use of

Process control1 Toner patch images are formed on the photoconductor surfaceunder the three process conditions (MC grid bias voltage). At the first pr

Waste toner transport mechanism:The waste toner is passed through wastetoner transport screw 1 and waste tonerpipe 2 to waste toner bottle 3.Waste ton

5 Drive system divisionThe fuser unit is rotated by the main drive unit. In case of manualrotation of the fuser unit to remove paper jam, however, exc

2) Details of operation1 The alignment plate and the rear edge plate detect the homepositions, and moves to the paper size position. (ADU motor 1, 2,O

[6] DISASSEMBLY AND ASSEMBLYThe descriptions are divided into the following sections. 1. Paper feed section 2. Transport section and power section

(Note for assembly 2)When attaching the paper feed section roller ass’y, adjust so that thepaper feed roller clutch and the PS front roller ass’y clut

[1] PRODUCT OUTLINE1. Product features(1) Compact body• Compact body sizeThe body width of 600mm is the smallest in the class.• The employment of the

(Note for assembly)Attach the paper feed roller so that the one-way clutch is on the rearframe side. (Be careful of the direction.) Attach the roller

3 Remove the hook of the front frame side bearing, and lift it up toremove it toward the upper frame side. Remove the rear frameside connector, and sl

3. Fusing section 3-1. Fusing unit removal1 Open the front cover.2 Push the open/close lever down to the right side, and slowly openthe upper unit. 3

3-4. Upper separation pawl replacement1 Remove the fusing unit, and remove the cover. 2 Put the fusing unit so that the paper guide is on the lower si

3-7. Thermistor/thermostat removal1 Remove the fusing unit.2 Remove the fusing cover, and remove the thermistor/thermostat.* Note for assembly• Check

2 Remove the operation panel, the upper cabinet R, and the rightcabinet.3 Remove the dark box cover upper. 4 Manually move mirror base B. (Within the

3 Rotate the mirror base B counterclockwise to remove.4 Disconnect the connector from the copy lamp unit on the rearframe side and from the No. 2/3 mi

3 Fix the mirror base wire to the pulley with the mirror base wirefixing screw. 4 Return the 9th winding tip of the mirror base wire to the originalpo

4) Copy lamp unit installation (Mirror base Apositioning) This adjustment must be performed in the following cases:• When the mirror base drive wire i

5 Remove the drive springs 4 and 5. 6 Remove the zooming rack of the roll holder unit.7 Remove the lens drive shaft attachment plate.8 Remove the driv

[2] PRODUCT SPECIFICATIONS1. Basic specifications(1) Type: Table top(2) Copy speed:<SF-1020/1120>NormalEnlargement(Magnification)Reduction(Magni

6) Lens wire replacementA. Lens wire removal1 Remove the OR guide L and R, and remove the table glass. 2 Remove the dark box cover upper.3 Remove the

7 Remove the drive wire spring and the wire hook from the lenscarriage boss.8 Remove the L pulley and the L drive pulley from the lens wire.B. Lens wi

4 Manually turn the zooming can drive gear to fit the zooming camdrive gear hole and No. 4/5 mirror drive unit base hole B.5 Install No. 4/5 mirror dr

5. High voltage section Clean the MC case, and the TC/SC case every 50K copies. Clean thescreen grid, the charging plate (saw teeth), and the TC/SC wi

5-2. Transfer/separation charger (TC/SC) unit1 Open the font cover, open the body up.2 Push TC/SC unit pawl sections A (2 positions) and lift the fron

6-2. Waste toner bottle replacement (required whenwaste toner full detection/maintenance)1 Take out the process unit as shown above, <Note> If t

6-3. Drum (Replace every 50K copies)1 Remove the process unit from the copier. (Refer to 6-1.)2 Loosen two blue screws which are fixing the drum, rota

6-6. Cleaner blade (Replace every 50K copies.)1 Remove the holder from the process unit. (3 blue screws)2 Remove the cleaning blade. (3 blue screws)6-

B. DB blade replacement (Replace every 120K copies.)1Remove the old DV blade from the DV cover. (Remove the duplextape.)2 Attach the new DV blade with

G. Developing unit color identificationColor identification is made for different resistances of the developingunit. ColorResistance(KΩ)Identification

2. Description of each section(1) Paper feed sectionSF-1020 SF-1120Copying size A3 ∼ A6/W letter ∼ InvoicePaper feedsystem2 trays + multimanual feed1

B. Cooling fan motorReverse the removal procedures. <Note> When attaching the cooling fan motor, put the harness sec-tion B and the CFm duct gro

9-4. Main PWB unit1 Remove the rear cabinet upper. 2 Disconnect all the connectors (6 connectors) connected to themain PWB. 3 Remove the main PWB plat

10. Multi paper feed unit (SF-MF15: option)10-1. Separation roller1 Remove three screws and remove the paper feed/take-up rollerass’y. 2 Remove the se

11. ADU<Reverse roller>1 Remove the extension stopper, and remove the ADU from thecopier.2 Remove the four fixing screws (M4 × 8) of the ADU cov

<Reverse roller>1Remove three fixing screws (M4 × 10) of the left cabinet, andremove the left cabinet. Remove the plastic E-ring which is fixing

[7] ADJUSTMENTS1. Developing section1-1. Developing doctor clearance adjustmenta. If the clearance between the developing doctor and the MAGroller is

(5) Measure the distance from the marking position to the bottom(A) of the developing unit and check that the distance is17.6mm. If the distance is no

2-2. Note for adjustments1. Only the exposure balance adjustment, the blank lamp adjust-ment, and the copy lead edge adjustment can be performedindivi

2-3. Adjustment of each sectionA. Lens reference position adjustmentIn this model, the reference value according to each lens charac-teristics must be

(3) Check to confirm the lens value specified on the lens valuelabel.(4) Insert a screwdriver into hole (P) in the right rear side (paperfeed side) of

3. Supply partsBrazil/Asia except Hong KongName Contents Life Product name1 OPC Drum kit OPC Drum × 1Cleaner Blade × 1Drum Separation Pawl × 2Separati

(4) Calculate the copy magnification ratio.Copy magnification ratio = Copy image sizeOriginal size × 100%(5) Check that the obtained copy magnificatio

(2) Turn off/on the power to initialize the lens and No. 4/5 mirrorunit. Check the focus in the normal ratio.(3) If the focus is improper, perform the

E. Horizontal copy magnification ratio adjustmenta. This adjustment is performed to meet the displayed magnifica-tion ratio with the actual one.b. Thi

F. Comparison table of lens values and simulation input valuesLensdisplayvalueSim 48-01Zoom correction(Enlargement)Zoom correction(Reduction)Sim 48-01

G. Vertical skew adjustmenta. This adjustment is performed when a skew copy is made asshown below or when a part of the mirror base drive wire or theN

<Adjustment procedure>(1) Make an original for adjustment.Draw parallel lines at 10cm from the both edges of an A3 or11" × 17" white p

(Example) When La=12mm and Lb=9mm, shift the paper exit sidemirror base B rail upward by 1.5mm.• When Lc > Ld, shift the mirror base B rail downwar

(3) Remove the original reference plate and the right upper sidecabinet, and remove the original table glass.(4) Move the exposure plates a, b, c, and

(4) Measure the distance between the copy paper lead edge andthe copy image lead edge in each copy. Obtain RRC-A andRRC-B values from the following fo

(11) Make a normal copy and check that the image loss and thevoid amount are within the specified range.(Specified range)• Image loss: 0 ∼ 4mm• Void a

4. Optional specifications(1) Automatic document feeder (ADF)<Model name: SF-A18>Original set direction Face upOriginal set position Center refe

B. Original detecting level adjustment(Original detecting judgement level input)This adjustment is to set the reference value for judgement ofpresence

[8] SIMULATION1. OutlineThis model is equipped with the simulations feature which allows thefollowing operations with the keys on the operation panel:

4. List of simulationsMaincodeSubcodeContent101 Mirror scanning02 Optical system sensor check03 Lens operation check04 Lens operation aging201 ADF agi

*1 (Simulation 26-6 Destination setting)Set value Model (Destination) Set value Model (Destination)0 Japan 6 EX inch series1 SEC 7 EX AB series2 SECL

5. Details of simulationsSimulation input procedure: C → ë → 0 → ëMain code Sub code Content01 01 Mirror operation checkWhen the print button is press

Main code Sub code Content02 10 ADF individual load operation check (paper feed motor + paper feed solenoid)11 ADF individual load operation check (tr

Main code Sub code Content05 04 DL lamp lighting checkThe discharge lamp is lighted for 30 sec.05 BL lamp lighting checkThe blank lamp is turned on/of

Main code Sub code Content09 03 ADU rear edge plate aging (SF-2120 only)The rear edge plate is returned to the initial position and shifted to the fol

Main code Sub code Content21 01 Maintenance cycle settingUsed to set the lighting cycle of the maintenance lamp (è).When this simulation is executed,

Main code Sub code Content24 01 Jam memory/total jam counter clearThe cause (position) of a jam which occurred during copying and the jam total counte