Ricoh SP 200 Specifiche

IMPORTANT SAFETY NOTICES PREVENTION OF PHYSICAL INJURY 1. Before disassembling or assembling parts of the copier and peripherals,make sure that the

1. 2nd Mirror2. 1st Mirror3. DF Exposure Glass4. Xenon Lamp5. Exposure Glass6. Original Width Sensors7. 1st Mirror8. Barrel Toroidal Lens (BTL)9. Orig

4. Unpack the new PCU. 5. Remove 2 clamps [A] and drum protection sheet [B] from the new PCU.NOTE:Do not touch the photoconductor. If you do, cop

7. Peel the sealing tape [A] off the development unit to install the developer. 8. Raise the toner bottle holder lever [B] and pull the toner bottl

10. Unscrew the bottle cap [A] and insert the bottle into the holder [B].NOTE:Do not open the inner bottle cap [C].11. Reposition the holder and pre

2.3 AUTO DOCUMENT FEEDER INSTALLATION CAUTIONUnplug the copier power cord before starting the following procedure.NOTE:When installing the DF, use

7. Install the DF unit [A]. 8. Slide the DF to the left, then secure the DF unit with 2 screws (M4 x 10). 9. Connect the I/F harness [B] to the

2.4 PAPER TRAY UNIT INSTALLATION CAUTIONUnplug the copier power cord before starting the following procedure. 1. Unpack the paper tray unit. Then,

2. Place the copier on the paper tray unit [A] with the pegs [B] fitting into thecopier’s peg holes. 3. Remove the copier’s second paper tray [C]

10. Pull out the paper tray [A] and turn the paper size dial [B] to select theappropriate size. Then, adjust the side guides [C] and end guide [D]

2.5 DUPLEX UNIT INSTALLATION CAUTIONUnplug the copier power cord before starting the following procedure. 1. Unpack the inverter unit and duplex u

5. Swing the lower transport guide plate [A] down as shown in the illustration. 6. Remove the lower transport guide plate and pull it out as sho

5. ELECTRICAL COMPONENT DESCRIPTIONSRefer to the electrical component layout and the point-to-point diagram on thewaterproof paper in the pocket for t

9. Swing the upper inverter guide plate [A] up as shown in the illustrationand secure it with the magnets [B] at front and rear.10. Reinstall the

2.6 1-BIN SORTER INSTALLATION CAUTIONUnplug the copier power cord before starting the following procedure. 1. Unpack the copy tray and remove the t

3. Insert the hooks on the 1-bin sorter tray into the slots in the sorter unit [A]. 4. Hook the clips on the 1-bin sorter unit onto the stud pins

2.7 MEMORY BOARD CAUTIONUnplug the copier power cord before starting the following procedure. 1. Remove the rear cover. (See Rear Cover Removal in S

2.8 KEY COUNTER HOLDER INSTALLATION 1. Remove the caps [A]. 2. Secure the front key counter bracket [B] (1 screw). 3. Secure the rear key count

6. Hold the key counter plate nuts [A] on the inside of the key counterbracket [B] and insert the key counter holder [C]. 7. Secure the key coun

2.9 ANTI-CONDENSATION HEATER INSTALLATION CAUTIONUnplug the copier power cord before starting the following procedure. 1. Remove the rear cover and

2.10 TRAY HEATER CAUTIONUnplug the copier power cord before starting the following procedure. 1. Remove the 2nd paper feed tray. 2. Install the cla

2.11 TRAY HEATER (OPTIONAL PAPER TRAY UNIT) CAUTIONUnplug the copier power cord before starting the following procedure. 1. Remove the upper paper t

4. Install 3 clamps [D] 5. Install the interface board [E], and connect the tray heater harness [F] tothe interface board. Then, clamp the harness

SymbolIndexNo.Description NoteS8 9Charge Roller H.P Informs the CPU when the drum chargeroller is at home position.S9 14Upper Tray PaperEndInforms the

SECTION 4SERVICE TABLES

1. SERVICE REMARKS1.1 GENERAL CAUTIONDo not turn off the main switch while any of the electrical components areactive. Doing so might cause damage to

1.3 TRANSFER ROLLER UNIT 1. Never touch the transfer belt surface with bare hands. 2. Take care not to scratch the transfer roller as the surface is

1.7 PAPER FEED 1. Do not touch the surface of the pick-up, feed, and separation rollers. 2. The side fences and end fences of the paper tray must be

2. SERVICE PROGRAM MODE2.1 SERVICE PROGRAM MODE OPERATIONThe service program (SP) mode is used to check electrical data, changemodes, and adjust value

2.1.3 How to select the program numberProgram numbers are composed of two or three levels. To input the required program number, select each program l

2.2 SERVICE PROGRAM MODE TABLES2.2.1 Main SP Mode TableNOTE:1) In the Function column, comments are in italics.2) In the Settings column, the default

Mode No.Function SettingsClass1 and 2Class 31-002 *4Side-to-SideRegistration(4th paperfeed: OptionPFU tray 2)Adjusts the printing side-to-sideregistra

Mode No.Function SettingsClass1 and 2Class 31-902FusingControlFrequencyDisplayDisplays the fusing control frequencywhich is detected by the zero cross

Mode No.Function SettingsClass1 and 2Class 32-301 *1 *TransferCurrentAdjustment(Paper Tray) Adjusts the current applied to the transferroller during p

SymbolIndexNo.Description NoteMC6 44 Lower Paper Feed Starts paper feed from the lower paper tray.MC7 39 Registration Drives the registration rollers.

Mode No.Function SettingsClass1 and 2Class 32-902*FCISmoothing(Letter Mode)Selects whether the FCI smoothingfunction to remove jagged edges isenabled

Mode No.Function SettingsClass1 and 2Class 32-905GradationTypeThis is for the designer’s test purposes.Do not change the value.2-907*Laser PulsePositi

Mode No.Function SettingsClass1 and 2Class 32-995*1TD SensorControl ValueDisplay(Factory)Displays the TD sensor control value(VCONT), which was adjust

Mode No.Function SettingsClass1 and 2Class 34-010 *Leading EdgeRegistration(Scanning)Adjusts the leading edge registration forscanning.- 2.0 ~ + 9.00.

Mode No.Function SettingsClass1 and 2Class 34-101*Sub ScanMagnification(Scanning:Book Mode)Adjusts the magnification in the sub scandirection for scan

Mode No.Function SettingsClass1 and 2Class 34-407*1MTF FilterSelection inLetter Mode(25% ~ 64%)Selects the MTF filter level for Lettermode. A stronger

Mode No.Function SettingsClass1 and 2Class 34-412*Video DataPathSelects one of the following video data outputs, which willbe used for printing.0. Nor

Mode No.Function SettingsClass1 and 2Class 34-421*1Dither PatternSelection(GrayscaleMode/PhotoMode)Selects the dither pattern used ingrayscale process

Mode No.Function SettingsClass1 and 2Class 34-910*ScannerMotor ControlMethodSelects the scanner motor control method.0: Normal1: SpecialIf "1&quo

Mode No.Function SettingsClass1 and 2Class 35-401*1User CodeMode(Copier)Selects whether the user code function isenabled in copy mode or not.0: No1: Y

6. DRIVE LAYOUT 1. Scanner Drive Motor 2. Development Clutch 3. Charge Roller Contact 4. Main Motor 5. Registration Clutch 6. Lower Paper Feed

Mode No.Function SettingsClass1 and 2Class 35-802Free Run Performs a free run for both the scannerand the printer. 0: No1: YesTo perform the free run,

Mode No.Function SettingsClass1 and 2Class 35-901Printer FreeRunPerforms the printer free run.0: No1: YesTo perform the free run, press 1 thenpress tw

Mode No.Function SettingsClass1 and 2Class 35-930*FaxForwardingModeSelects whether the fax mode applicationkey is accepted or not in the SC condition.

Mode No.Function SettingsClass1 and 2Class 36-006 *1ADF Side-toSideRegistrationAdjusts the printing side-to-sideregistration in the ADF mode.-1.5 ~ +1

Mode No.Function SettingsClass1 and 2Class 36-910ADF andPrinter FreeRunPerforms both an ADF and printer freerun .0: No1: YesTo perform the free run, p

Mode No.Function SettingsClass1 and 2Class 37-101* 7Total Copiesby Paper Size(8 1/2" X 11")Displays the total number of copies bypaper size.

Mode No.Function SettingsClass1 and 2Class 37-301* 3Total CopiesbyReproductionRatio (Fullsize)Displays the total number of copies byreproduction ratio

Mode No.Function SettingsClass1 and 2Class 37-304*1Total Copiesby Copy Mode(Overlay)Displays the total number of copies bycopy mode.2Total Copiesby Co

Mode No.Function SettingsClass1 and 2Class 37-504*6Total Jam byLocation(R Jam)Displays the total copy paper jam counterby location.7Total Jam byLocati

Mode No.Function SettingsClass1 and 2Class 37-8016ROM/CPUVersion(PrinterControl)Displays the ROM version.NOTE:Class 3 nos, 3, 7, and 8 are used onlyfo

7. COPY PROCESS7.1 OVERVIEW 1A193V505.wmfPowerPackPower Pack2345678-1750 V-900 V-140 V-600 V+15 µA+2 kV-90 VA193V506.wmfCOPY PROCESS 1 August 19961-

Mode No.Function SettingsClass1 and 2Class 37-904Copy JamHistory ClearClears the copy jam history.0: No1: YesPress down the "Photo mode" key

- APS and Platen/ADF Sensor Output Display (SP4-301) - 1. Cover sensor status 1 = Closed2. APS sensor status 1 = Paper detected3. Paper size display-

2.2.2 Test Pattern Printing (SP 5-902) 1. Access the SP mode which contains the test pattern you need. 2. Press the Interrupt key on the display to

2.2.3 Input Check (SP5-803) 1. Access SP mode 5-803. 2. Select the number which will access the switch or sensor you wish tocheck (see the followin

Number DescriptionReading0115 Upper Paper Size Sensor See Table 116 Lower Paper Size Sensor See Table 117 Main Motor Lock Not locked Locked18 Not used

Number DescriptionReading0151Registration Sensor (Optional ADF) Paper notdetectedPaper detected52 ADF Set (Optional ADF) Not connected Connected53 Not

2.2.4 Output Check (SP5-804) CAUTION:To prevent mechanical or electrical damage, do not keep anelectrical component on for a long time. 1. Access SP

- Output check table -No. Description No. Description 1 Junction Gate Solenoid 31 Not used 2 Registration Solenoid 32 3Upper Relay Clutch331-bin Jun

2.2.5 Copy Jam History Display (SP7-903)After entering the SP mode, select "1" and press the key. The followingmessage will be displayed. 1:

2.2.6 Original Jam History Display (SP7-905)After entering the SP mode, select "1" and press the key. The followingmessage will be displayed

1. EXPOSUREA xenon lamp exposes the original. Light reflected from the original passes tothe CCD, where it is converted into an analog data signal. Th

2.2.8 Memory All Clear (SP5-801)CAUTION:Memory All Clear mode resets all the settings stored in theNVRAM to their default settings. Among these settin

2.2.9 Program DownloadThis procedure copies the software from an ROM board to the Flash ROM onthe BICU board. 1. Turn off the main and ac switches.

3. USER PROGRAM MODE The user program (UP) mode is accessed by users and key operators, andby sales and service staff. UP mode is used to input the co

UP Mode Table (Copy Settings) 1. General Features 1. APS Priority 2. AID Priority 3. Original Priority 4. Show All Keys 5. Maximum Copy Q’ty 6.

4. SWITCHES/LEDS4.1 SWITCHESBICUNumber FunctionSW 1 Resets all systems (like turning the main switch off/on).4.2 LEDSBICUNumber FunctionLED 1 Monitors

SECTION 5PREVENTIVE MAINTENANCE

1. PREVENTIVE MAINTENANCE SCHEDULE1.1 PM TABLENOTE:The amounts mentioned as the PM interval indicate the number ofprints.Symbol key: C: Clean, R: Rep

A193 EM 100K 200K 300K NOTEOTHERSDrive Belts I I I Replace if necessaryEM 60K 120K 185K 240K NOTEAUTO DOCUMENT FEEDER (for originals)Transport Belt

SECTION 6REPLACEMENTAND ADJUSTMENT

1. EXTERIOR1.1 FRONT COVER/INNER COVER 1. Open the front cover [A]. 2. Remove the front cover (2 pins). 3. Remove the inner cover [B] (2 knobs [C]

8. BOARD STRUCTURE8.1 OVERVIEW DF MotorScanner SensorsDF Sensors,SolenoidsHigh Voltage SupplyLaser PrinterSensors, Solenoids,Motors, ClutchesPeripher

1.2 REAR COVER CAUTION:If the machine is equipped with a DF and a paper tray unit,disconnect the cable which connects the copier with the DF andthe pa

1.4 EXPOSURE GLASS/OPERATION PANEL/UPPER COVER 1. Remove the left scale [A] and rear scale [B] (5 screws). 2. Remove the exposure glass [C]. 3. Re

2. PHOTOCONDUCTOR UNIT (PCU)WARNINGDo not incinerate the photoconductor unit. Toner dust might ignitewhen exposed to an open flame. Dispose of the us

4. Remove the 2 clamps [A] and the drum protection sheet [B] from the new PCU.NOTE:Do not touch the photoconductor. If you do, copy quality may

2.2 DRUM CHARGE ROLLER UNIT 1. Remove the upper cover [A] of the PCU (6 hooks). 2. Remove the drum charge roller unit [B].NOTE: 1. Do not let the s

2.3 DRUM 1. Remove the drum charge roller unit. (See Drum Charge Roller Unit.) 2. Remove the shutter cam [A] (1 screw) and the front plate [B] (1 s

2.4 CLEANING BLADE 1. Remove the drum. (See Drum.) 2. Remove the developer cartridge [A] (3 hooks). 3. Remove the cleaning blade [B] (2 screws).[A

3. TRANSFER UNIT3.1 TRANSFER UNIT 1. Remove the PCU. 2. Raise the transfer unit [A] vertically and remove it. 3.2 TRANSFER ROLLER/SEPARATION UNIT

4. SCANNER UNIT4.1 LENS COVER 1. Remove the scales and exposure glass. (See Exposure Glass/OperationPanel/Upper Cover.) 2. Remove the flat cable [A

4.2 SCANNER FRAME 1. Remove the platen cover (ADF). 2. Remove all parts indicated in the Exposure Glass/Operation Panel/UpperCover section. 3. R

8.2 DESCRIPTION1. BICU (Base Engine and Image Control Unit)This is the main board. It controls the following functions:•Engine sequence•Scanner, laser

4.3 ORIGINAL SIZE SENSOR 1. Remove the exposure glass. (See Exposure Glass/OperationPanel/Upper Cover.) 2. Remove the lens covers. (See Lens Cover.

4.5 XENON LAMP 1. Remove the exposure glass and operation panel. (See ExposureGlass/Operation Panel/Upper Cover.) 2. Remove the scanner frames. (S

4.6 SCANNER H. P. SENSOR/PLATEN COVER SENSOR 1. Remove the exposure glass and upper rear cover. (See ExposureGlass/Operation Panel/Upper Cover.) 2

4.7 SCANNER MOTOR 1. Remove the exposure glass and operation panel. (See ExposureGlass/Operation Panel/Upper Cover.) 2. Remove the lens covers. (S

4.8 SCANNER WIRE 1. Remove the exposure glass and operation panel. (See ExposureGlass/Operation Panel/Upper Cover.) 2. Remove the lens covers. (See

9. Wind the end of the new wire with a ball as shown in illustrations ② - ④on the previous page.10. Wind the end of the new wire with a ring as sh

5. LASER UNIT WARNINGTurn off the main switch and unplug the machine before attemptingany of the procedures in this section. Laser beams can seriousl

5.1 LASER UNIT/MAIN SCAN SYNCHRONIZATION DETECTOR WARNINGTurn off the main switch and unplug the machine before attemptingany of the procedures in th

5.2 POLYGON MIRROR MOTOR 1. Remove the front cover, inner cover, copy tray, and the front left and rightcovers (see section 1.1) 2. Remove the copy

5.3 LD UNIT 1. Remove the copy tray. 2. Remove the main scan synchronizing detector. 3. Remove the laser unit (4 screws, 2 connectors). 4. Remove

SECTION 2DETAILED SECTIONDESCRIPTIONS

5.4 LASER UNIT POSITIONING ADJUSTMENT CAUTIONDo not open the laser unit cover during the adjustment. 1. Print the trimming pattern on A3 paper and e

6. FUSING/EXITCAUTIONThe fusing unit gets hot. Do not touch the metal part with bare hands.6.1 HOT ROLLER STRIPPERS 1. Pull out the fusing unit (1

6.3 HOT ROLLER/FUSING LAMP 1. Pull out the fusing unit (1 screw). 2. Remove the front cover and upper cover. (See FusingThermister/Thermofuse.) 3.

6.4 PRESSURE ROLLER/CLEANING ROLLER 1. Remove the hot roller. (See Hot Roller/Fusing Lamp.) 2. Remove the exit guide plate [A] (1 screw). 3. Check

7. EXIT7.1 EXIT UNIT 1. Remove the left cover, front left cover, and rear cover. (See Rear CoverRemoval and Left/Right Cover.) 2. Remove the duct [

7.2 UPPER EXIT SENSOR/LOWER EXIT SENSOR 1. Remove the exit unit. (See Exit Unit.) 2. Replace the lower exit sensor [A] (1 connector). 3. Remove th

8. PAPER FEED/ REGISTRATION8.1 BY-PASS FEED TRAY 1. Remove the by-pass feed tray [A], holding the hook [B] on the by-passfeed tray with a tool, such

8.2 BY-PASS FEED PAPER END SENSOR/REGISTRATIONSENSOR 1. Remove the by-pass feed tray. (See By-pass Feed Tray.) 2. Remove the paper feed roller cove

8.3 PAPER FEED ROLLER/FRICTION PAD 1. Remove the registration sensor and paper end sensor unit. (See By-passFeed Paper End Sensor/Registration Senso

8.5 PAPER FEED ROLLERS/PAPER SIZE DETECTOR 8.5.1 Paper Feed Rollers 1. Remove the paper tray. 2. Remove the front door only when replacing the 1st

SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL 1. Do not incinerate toner bottles or used toner. Toner dust may ignitesuddenly when exposed to an open

1. SCANNING1.1 OVERVIEW The original is illuminated by the exposure lamp (a xenon lamp in this model)[A]. The image is reflected onto a CCD (charge co

8.6 PAPER END SENSORS 1. Remove the rear cover. (See Rear Cover.) 2. Disconnect the connectors from the right half of the IOCSS board [A] andswing

8.7 PAPER FEED CLUTCHES/RELAY CLUTCHES 1. Remove the paper feed roller shafts. (See Paper Feed Rollers.) 2. Remove the rear cover. (See Rear Cover

8.8 RELAY SENSOR/RIGHT VERTICAL GUIDE SWITCH 1. Open the right cover [A]. 2. Remove the relay sensor [B] (1 connector). 3. Remove the rear cover (

9. OTHERS 9.1 IOCSS BOARD 1. Remove the rear cover. (See Rear Cover.) 2. Disconnect all connectors from the IOCSS board [A] (33 connectors). 3. Re

9.2 MSU BOARD/BICU BOARD 1. Remove the MSU board [A] (2 screws). 2. Disconnect the connectors from the right half of the IOCSS board,remove the 4 s

9.3 PSU BOARD 1. Remove the rear cover. (See Rear Cover). 2. Disconnect the connectors from the right half of the IOCSS board,remove the 4 screws t

10. STANDARD WHITE DENSITY ADJUSTMENTThis is to adjust the standard white density level. Perform this adjustment in any of the following conditions:•A

11. COPY ADJUSTMENT PRINTING/SCANNINGNOTE:1) You need to perform these adjustment(s) after replacing any ofthe following parts:Scanner WireLens Block/

11.1.2 Blank Margin NOTE:If the leading edge/side-to-side registration can not be adjustedwithin the specifications, adjust the leading/left side edg

11.1.4 Double Copy Registration NOTE:1) Perform this adjustment after completing the registrationadjustment and the blank margin adjustment for singl

1.2 SCANNER DRIVE A stepper motor is used to drive the scanner. The 1st and 2nd scanners [A,B]are driven by this scanner drive motor [C] through the t

11.2.2 Magnification NOTE:Use an OS-A3 test chart to perform the following adjustment.1) Main Scan Magnification 1. Place the test chart on the expo

11.3 ADF IMAGE ADJUSTMENT 11.3.1 Registration and Blank Margin NOTE:Make a temporary test chart as shown above using A3/DLT paper. 1. Place the tem

12. IMAGE DENSITY ADJUSTMENT BY KEYOPERATORUsually, the image density is adjusted with SP2-911 (this changes thecoefficient for the TD sensor output).

SECTION 7TROUBLESHOOTING

1. SERVICE CALL CONDITIONS1.1 SUMMARYThere are 4 levels of service call conditions.Level DefinitionA To prevent the machine from being damaged, the SC

2. SC CODE DESCRIPTIONSSC120: Scanner home position error 1-Definition- [B]The scanner home position sensor does not detect the off conditionduring in

SC123: Scanner home position error 4-Definition- [B]The scanner home position sensor does not detect the on condition afterthe scanner returns to the

SC306: Charge roller home position error-Definition- [B]The charge roller contact sensor does not detect the on condition.- Possible causes -•Charge r

SC324: LD drive current over-Definition- [B]The LD drive board applies more than 100 mA to the LD.- Possible causes -•LD unit defective (not enough po

SC401: Transfer roller leak error 1SC402: Transfer roller leak error 2-Definition- [B]A transfer roller current leak signal is detected.- Possible cau

1.3 ORIGINAL SIZE DETECTION IN PLATEN MODE In the optics cavity for original size detection, there are four reflective sensorsin the 115V machines,

SC506: Paper tray unit main motor lock (optional paper tray unit only)-Definition- [C]A main motor lock signal is detected for more than 5 secon

SC546: Fusing ready temperature malfunction-Definition- [A]The fusing temperature goes 10 °C below or 10 °C over the stand-bytemperature after warm-up

SC692: Communication error between BiCU and printer controller-Definition- [B]The BICU board cannot communicate with the printer controller properly.-

SC980: Program loading error-Definition- [C]The program cannot load properly.- Possible cause -•Poor connection between the BICU and the ROM board•BIC

3. ELECTRICAL COMPONENT DEFECTS3.1 SENSORSComponent(Symbol)CN Condition SymptomUpper Exit (S1) 157-11(IOCSS)Open The Paper Jam indicator will light w

Component(Symbol)CN Condition SymptomRegistration(S12)119-6(IOCSS)Open The Paper Jam indicator will light whenevera copy is made.Shorted The Paper Jam

3.2 SWITCHESComponent(Symbol)CN Condition SymptomAC (SW1) 282-1,2(PSU)Open The machine does not turn on.Shorted The machine does not turn off.Main (SW

SECTION 8OPTIONS

ELECTRICAL COMPONENT LAYOUTCopier 26272829201918171615141312111098730313233346543212122232425A193S502.wmf

454443424140393848493736474635A193S501.wmf

Original Size Length SensorsWidthSensorsA4/A3 version LT/DLT versionL1 L2 L3 L4 S1 S2A3 11" x 17" OOOOOOB4 10" x 14" OOOOOXF4 81/2

50585655546061625352515759A193S500.wmf

CopierSymbol Index No. Description P to P (1/2)Printed Circuit BoardsPCB1 54 High Voltage Supply Board K17PCB2 50 Lamp Stabilizer M16PCB3 58 PSU C7PCB

Symbol Index No. Description P to P (1/2)SW4 20 Upper Paper Size N17SW5 19 Lower Paper Size O17SW6 26 Front Door Safety D11Magnetic ClutchesMC1 46 Cha

CN120JunctionGateC1UpperExitSensorLowerExitSensorLeftVerticalDoorSensorLeftDoorSensorRelaySensorABC-14/TRG[24]-1324VQuenchingLampUpperTrayPaperEndSens

Table12(NetworkI/FBoard-PrinterController)PIN PINNAME NAME12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505

IMPORTANT SAFETY NOTICES ?...OVERALL MACHINE INFORMATION ?.

5.3.3 By-pass Feed Paper Width Detection 2-52 2-52...5.4 PAPER REGISTRATION

4.2 LEDS 4-44 4-44...

11.3.1 Registration and Blank Margin 6-43 6-43...11.3.2 Sub Scan M

2. IMAGE PROCESSING2.1 OVERVIEW The CCD generates an analog video signal. The SBU (Sensor Board Unit)converts the analog signal to an 8-bit digital si

2.2 SBU (SENSOR BOARD UNIT) The CCD converts the light reflected from the original into an analog signal.The CCD line has 5,000 pixels and the resolut

2.3 AUTO IMAGE DENSITY (ADS) This mode prevents the background of an original from appearing on copies.The copier scans the auto image density detecti

2.4 IPU (IMAGE PROCESSING UNIT)2.4.1 Overview The image data from the SBU goes to the IPU (Image Processing Unit) IC onthe BICU board, which carries o

2.4.2 Image Processing Path SBUADS and AutoShadingSmoothingMTFCorrectionMain ScanMagnification/Reductionγ Correction(Scanner)GrayscaleProcessingDither

2.4.3 Auto Shading As with the previous digital copiers, there are two auto shading methods. Oneis black level correction and the other is white level

SECTION 1OVERALL MACHINEINFORMATION

2.4.4 Filtering and Main Scan Magnification/Reduction1. OverviewAfter auto shading, the image data is processed by both filtering and mainscan magnifi

3. Main Scan Magnification/ReductionReduction and enlargement in the sub scan direction are done by changingthe scanner speed. However, reduction and

2.4.5Gamma (γ) CorrectionGamma correction ensures accurate generation of the various shades in thegray scale from black to white, accounting for the c

1. Grayscale Processing As stated on the previous page, this process generates up to 64 imagedensity levels for each pixel. To realize this, this mach

3. Error DiffusionThis is used only in Text/Photo mode.The error diffusion process reduces the difference in contrast between lightand dark areas of a

2.5 MSU (MEMORY SUPER-CHARGER UNIT) The MSU consists of the memory controller and the DRAM. The functions ofeach device are as follows.Memory Controll

2.6 FCI (FINE CHARACTER AND IMAGE)The FCI performs image smoothing and line width correction. Thesefunctions only affect binary picture processed imag

3. LASER EXPOSURE 3.1 OVERVIEWThis machine uses a laser diode to produce electrostatic images on an OPCdrum. The laser diode unit converts image data

3.2 OPTICAL PATH The output path from the laser diode to the drum is shown above.The LD unit [A] outputs the laser beam to the polygon mirror [B] thro

3.3 GRADATION CONTROL (LASER POWER MODULATION) To make the latent image, the laser beam illuminates the image area of thedrum surface. The longer the

1. SPECIFICATIONSConfiguration: DesktopCopy Process: Dry electrostatic transfer systemOriginals: Sheet/BookOriginal Size: Maximum A3/11" x 17&quo

3.4 AUTO POWER CONTROL (APC) Even if a constant electric current is applied to the laser diode, the intensity ofthe output light changes with the temp

3.5 LD SAFETY SWITCHES To ensure that the laser beam does not inadvertently expose the drum duringservicing, there are two safety switches located at

4. PCU (PHOTOCONDUCTOR UNIT)4.1 OVERVIEW The PCU consists of the components shown in the above illustration. Anorganic photoconduntor (OPC) drum (diam

4.2 DRIVE MECHANISM The drive from the main motor [A] is transmitted to the drum through a seriesof gears, a timing belt [B], and the drum drive shaft

4.3 NEW PCU DETECTION MECHANISM The PCU sensor [A] detects when a new PCU is installed. Each PCU has anactuator. When a new PCU is installed in the m

4.4 DRUM CHARGE4.4.1 Overview This copier uses a drum charge roller system instead of a corona wirescorotron system to charge the drum. For the copy i

4.4.2 Charge Roller Contact Mechanism To prevent toner from adhering to the drum charge roller and to prevent thedrum charge roller from sticking to

4.4.3 Drum Charge Roller Cleaning If the drum charge roller gets dirty, drum charge efficiency decreases. Thisaffects the copy quality, for example

4.4.4 Temperature Compensation The voltage transferred from roller to drum varies with the temperaturearound the drum charge roller. The lower the tem

4.5 DEVELOPMENT4.5.1 Overview This copier uses a single roller development system.The developer cartridge [A], which includes the developer, is just a

Power Consumption:Mainframe Only Full System120V 220V ~ 240V 120V 220V ~ 240VMaximum Less than 1.1 kW Less than 850 W Less than 1.2 kW Less than 1 kWC

4.5.2 Drive Mechanism When the development clutch [D] turns on, main motor drive is transmitted tothe development drive shaft [A] and the development

4.5.3 Mixing This copier uses 2 mixing augers, [A] and [B], to keep the developer evenlymixed. Mixing auger 1 [A] transports excess developer, scraped

4.5.4 Development Bias This machine uses a negative-positive development system, in which blackareas of the latent image are at a low negative charge

4.5.5 Toner Density Control- Toner Density Control Flow Chart - Each step is explained in more detail on the following pages.CopyVTREFdeterminationVTE

- Toner Density Sensor - Developer consists of carrier particles (ferrite) and toner particles (resin andpigment). Inside the development unit, develo

- Toner Density Sensor Initial Setting -The TD sensor initial setting procedure is performed in the factory. During TDinitial setting, the machine cal

- Toner Supply Motor On Time Calculation -The toner motor on time is decided by the following factors (point "5" on theflow chart).•∆VT (thi

4.5.7 Toner Supply- Toner Bottle Replenishment Mechanism - When a toner bottle is placed on the bottle holder unit [A] and pushed back incompletely a

- Toner Supply Mechanism - The toner supply motor [A] drives the toner bottle [B] and the mylar blades[C]. First, the toner falls down into the toner

- Toner Near End/End Detection - CopyVTREFdeterminationVTE determinationVT – VTREF = ∆VTHave 30 copiesbeen made?VT > VTE∆VT > 0Has thecopy job b

First Copy Time: Less than 9.8 s (from 1st paper tray to face downcopy tray)Less than 8.8 s (from 1st paper tray to face upcopy tray)Copy Number Input

There is no toner end sensor in this machine. Instead, toner end/near-end isdetected using the TD sensor output data.The machine checks for toner near

4.6 DRUM CLEANING AND TONER RECYCLING4.6.1 Drum Cleaning The cleaning blade [A] removes any toner remaining on the drum after theimage is transferred

4.6.2 Toner Recycling Toner which falls onto the toner collection coil [A] is transported to therecycled toner transport belt [B] at the front of the

5. PAPER FEED5.1 OVERVIEW There are two paper trays and a by-pass feed table [A].The first [B] and second [C] paper trays each hold 250 sheets. The by

5.2 PAPER TRAY5.2.1 Paper Feed Drive Mechanism The main motor [A] drives the pick-up and feed mechanism of both the firstand second paper trays. The p

5.2.2 Paper Lift Mechanism When the paper tray [A] is closed after paper is loaded, the release slider [B],which is mounted on the bottom part of the

5.2.3 Paper End Detection The paper end feeler [A] is on the same shaft as the paper end actuator [B].When the paper tray runs out of paper, the pape

5.2.4 Side Fence Double Stopper Mechanism There is a side fence stopper mechanism for both the front and rear sidefences.If the tray is closed with ex

5.2.5 Paper Size Detection SWSize1234A3, F( 81/2"x13" )●●●❍A4 Lengthwise●❍●❍A4 Sideways●●❍❍A5 Sideways,11"x17"●❍❍❍B4, 81/2&quo

5.3 BY-PASS FEED5.3.1 Overview The by-pass feed table [A] can hold 100 sheets of paper.This machine does not have a by-pass feed cover sensor. The by-

2. MACHINE CONFIGURATION Version Item Machine Code No.Copier Copier A193 EADF (Option) A628 DPaper Tray Unit (Option) G697 FDuplex Unit (Option) G694

5.3.2 Paper Feed Mechanism and Paper End Detection This machine uses a feed roller and friction pad mechanism, with drive fromthe main motor transm

5.3.3 By-pass Feed Paper Width Detection The paper width switch [A] is a slide switch located inside the by-pass feedtable [B]. It measures the pape

5.4 PAPER REGISTRATION Main motor rotation is transmitted to the registration clutch [A] (located on thelower registration roller shaft) through the r

6. IMAGE TRANSFER AND PAPERSEPARATION6.1 OVERVIEW Instead of using a transfer wire and a transfer belt, this machine uses atransfer roller [A], which

6.2 IMAGE TRANSFER AND PAPER SEPARATIONMECHANISM The transfer roller starts rotating at the same time as the main motor starts torotate. 1. When the

6.3 ROLLER CLEANING If the paper size is smaller than the printed image, or if a paper jam occursduring printing, toner may be transferred to the roll

6.4 PAPER SEPARATION AND TRANSPORTATION The discharge brush [A] and the curvature of the drum help the paper to dropaway from the drum. The high volt

7. IMAGE FUSING7.1 OVERVIEW The fusing unit consists of the following parts. 1. Fusing thermofuse 6. Pressure lever 2. Hot roller 7. Cleaning roll

7.2 FUSING DRIVE AND RELEASE MECHANISM The main motor [A] drives the fusing unit through a train of gears.The fusing unit drive release mechanism auto

7.3 FUSING ENTRANCE GUIDE SHIFT MECHANISM The entrance guide [A] for this machine has two holes on the rear side of theentrance guide to adjust for th

3. PAPER PATH Optional1-binSorterFaceDown TrayFace UpTrayOptionalDuplexTrayPaperTrayOptionalPaperTray UnitA193V005.wmf1 August 1996 PAPER PATH1-5

7.4 PRESSURE ROLLER The pressure roller is made of silicone rubber with teflon tube coating. Thepressure spring [A] constantly applies pressure betw

7.6 FUSING TEMPERATURE CONTROL When the main switch turns on, the CPU checks the ac frequency for 500ms. Then the CPU turns on the fusing lamp. When t

8. ENERGY SAVER MODES8.1 OVERVIEWWhen the machine is not used, the energy saver function reduces powerconsumption by decreasing the fusing temperature

8.2 COPIER ONLY Entering energy saver modeThe machine enters energy saver level 1 or 2 when one of the following isdone.•The system auto reset timer r

+5VE is the 5 volt supply for energy saver mode. It saves energy bysupplying +5V power only for the components needed in energy saver mode.Note that t

8.3 COPIER/PRINTER Entering energy saver modeThe machine enters energy saver level 1 or 2 in the same way as the copieronly configuration.What happens

Entering auto shut off modeThe machine only enters auto shut off mode if the main switch is turned off.In this mode, the fusing lamp turns off and the

8.4 COPIER/FAX, COPIER/PRINTER/FAX‘ Energy saver mode is more complex in this configuration. This is becausethere are two night modes, instead of the

What happens in energy saver modes 1 and 2The behaviour in these levels is the same also (fusing lamp at lowtemperature). However, there are two extra

Power ConsumptionMode MainSwitchEnergySaver LEDFusingLampSystem+5VNoteEnergy SaverLevel 1On On 165°C OnThe machine returns to standbymode if the DF is

4. MECHANICAL COMPONENT LAYOUT 3332313029282726252423222120191817161514131211109876543213435A193V502.wmfMECHANICAL COMPONENT LAYOUT 1 August 19961-6

8.5 ENERGY SAVER CONTROLThe block diagram on the next page shows the relationship between thepower supply signals and the command signals for energy s

- Block Diagram - GOPCCPU/GAPDEnergySaverCPUHIC NCUSCPDC/DCOriginalSetSensorDFPositionSensorAC/DCTE6251AC/DCMain SwitchOperationPanel I/FOperation Pan

8.6 ENERGY SAVER TIMING CHARTS1. Auto Energy Saver mode: On Auto Shut Off mode: On- Copier Configuration - - Copier + Fax and Copier + Fax + Printer C

2. Auto Energy Saver mode: Off Auto Shut Off mode: On- All configurations - System Auto ResetTimer (0 ~ 180 s)Auto Shut Off Timer (5 ~

9. PAPER EXIT The copy from the fusing unit goes either upwards to deliver the copy paperto the face down tray, or straight through to the face up tra

SECTION 3INSTALLATION

1. INSTALLATION REQUIREMENTS1.1 ENVIRONMENT 1. Temperature Range: 10 OC to 30 OC (50 OF to 86 OF) 2. Humidity Range: 15 % to 90 % RH 3. Ambient Ill

1.3 MINIMUM SPACE REQUIREMENTSPlace the copier near the power source, providing clearance as shown: NOTE:The 75 cm recommended for the front space is

2. COPIER INSTALLATION2.1 ACCESSORY CHECKCheck the quantity and condition of the accessories in the box against thefollowing list:No. Description Q’ty

2.2 COPIER INSTALLATION PROCEDURE CAUTIONUnplug the copier power cord before starting the following procedure. 1. Remove the tapes on the exterior