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Model: Sirius-SC1fn
(Machine Code: G422)
SERVICE MANUAL
3 December 2004
Subject to Change

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Summary of Contents for Ricoh Sirius-SC1fn

  • Page 1 Model: Sirius-SC1fn (Machine Code: G422) SERVICE MANUAL 3 December 2004 Subject to Change...
  • Page 2 IMPORTANT SAFETY NOTICES 1. Before disassembling or assembling parts of the scanner and option, make sure that the scanner power cord is unplugged. 2. The wall outlet should be near the scanner and easily accessible. 3. The output voltage of the PSU (Power Supply Unit) can be either 100 ~ 240 Vac, without any adjustment.
  • Page 3 Symbol What it means Refer to section number ☛ See Core Tech Manual for details " Screw Connector E-ring Clip ring Short Edge Feed (SEF) Long Edge Feed (LEF)
  • Page 4: Table Of Contents

    TABLE OF CONTENTS 1. INSTALLATION PROCEDURE........... 1-1 1.1 INSTALLATION REQUIRMENTS..............1-1 1.1.1 ENVIRONMENT ................1-1 1.1.2 MACHINE LEVEL ................1-1 1.1.3 MINIMUM SPACE REQUIRMENTS ..........1-1 1.1.4 POWER REQUIRMENTS..............1-1 1.2 MAINFRAME AND OPTION INSTALLATION PROCEDURES ....1-2 1.2.1 MAINFRAME ..................1-2 Accessory check...................1-2 Installation procedure................1-2 1.2.2 RACK: G822-17 (OPTION)...............1-3 ACCESSORY CHECK................1-3 Installation procedure................1-4 Moving the Printer................1-12...
  • Page 5 3.3 ADF SKEW ADJUSTMENT..............3-17 If the right side of the image is down...........3-17 If the left side of the image is down.............3-17 4. TROUBLESHOOTING ..............4-1 4.1 LED FUNCTION MODE ................4-1 4.1.1 LED FUNCTION TABLE..............4-1 4.1.2 NORMAL MODE................4-2 4.1.3 SELF DIAGNOSTIC MODE..............4-3 4.1.4 BLOWN FUSE CONDITIONS ............4-3 4.2 SC CODES....................4-4 5.
  • Page 6 6.7 IMAGE PROCESSING ................6-10 6.7.1 OVERVIEW ..................6-10 6.7.2 IMAGE PROCESSING IN THE SBU ..........6-11 6.7.3 IMAGE PROCESSING IN THE MCB..........6-11 Scan line correction ................6-12 White level correction................6-12 Gamma (γ) correction (Input/Output) ..........6-12 Line skipping correction ..............6-12 Mirroring for ADF Mode ..............6-12 Magnification..................6-12 Color resolution...................6-13 Background erase................6-13...
  • Page 7: Installation Procedure

    3 December 2004 INSTALLATION REQUIRMENTS 1. INSTALLATION PROCEDURE 1.1 INSTALLATION REQUIRMENTS 1.1.1 ENVIRONMENT Use this machine at optimum temperature and moisture. : Optimum temperature and moisture range 15ºC 80% 30ºC 80% 10ºC 80% 32.5ºC 80% 32.5ºC 20% 10ºC 20% 15ºC 20% 30ºC 20% Temperature [ºC] G422I001.WMF...
  • Page 8: Mainframe And Option Installation Procedures

    MAINFRAME AND OPTION INSTALLATION PROCEDURES 3 December 2004 1.2 MAINFRAME AND OPTION INSTALLATION PROCEDURES 1.2.1 MAINFRAME Accessory check NOTE: NA: North America. EU: Europe. Product code G422-17 G422-27 USB Card USB Cable Keyboard Power Cable Yes (C Type) Quick Installation Guide Safety instruction sheet (19 languages) Registration Card Warranty Card...
  • Page 9: Rack: G822-17 (Option)

    3 December 2004 MAINFRAME AND OPTION INSTALLATION PROCEDURES 1.2.2 RACK: G822-17 (OPTION) ACCESSORY CHECK Check the accessories and their quantities against this list: Description Quantity 1. Lower Stand................2 2. Upper stand ................2 3. Table Board ................1 4. Cross Bar................3 5.
  • Page 10: Installation Procedure

    MAINFRAME AND OPTION INSTALLATION PROCEDURES 3 December 2004 Installation procedure Assembling the Rack 1. Insert the upper stand [B] into the lower stand [A] as shown. Important Insert the upper stand [B] into the lower stand [A] till the two screw holes are correctly lined.
  • Page 11 3 December 2004 MAINFRAME AND OPTION INSTALLATION PROCEDURES 5. Put the stands parallel to each other (350 mm from each other). 6. Set the two cross bars [A] on the stands. Then secure them with M4x8W screws (! x 8). 350mm G422I230.WMF 7.
  • Page 12 MAINFRAME AND OPTION INSTALLATION PROCEDURES 3 December 2004 8. Set the cross bar [A] on the end of the lower stand. Then secure them with M4x8W screws (! x 4). NOTE: Turn the adjuster screws [B] to adjust the rack to level. G422I214.WMF 9.
  • Page 13 3 December 2004 MAINFRAME AND OPTION INSTALLATION PROCEDURES 11. Secure the handle [A] to the base board [B] with the M6×10W screws (! x 2). G422I208.WMF 12. Set the base board [C] with the wheels on the floor. Line the stand [D] and the cutout of the base board.
  • Page 14 MAINFRAME AND OPTION INSTALLATION PROCEDURES 3 December 2004 G422I217.WMF 13. Insert the stepped screws (! x 2) to the holes [A] on the base board. Then secure them to the screw holes [B] on the rack. Important Secure the stepped screws to the screw hole [B] on the Rack till the screw does not turn.
  • Page 15 3 December 2004 MAINFRAME AND OPTION INSTALLATION PROCEDURES 16. Insert the tray [A] to the table board [B] as shown. NOTE: Insert the tray to the table board till the holes [C] on both sides of the tray and the holes [D] on both sides of the table board are correctly lined.
  • Page 16 MAINFRAME AND OPTION INSTALLATION PROCEDURES 3 December 2004 20. Set the printer on the base board [A]. G422I222.WMF 21. Slide the base board as shown. G422I223.WMF 22. Turn the wheels of the base board outside. Then lock them. G422I224.WMF 1-10...
  • Page 17 3 December 2004 MAINFRAME AND OPTION INSTALLATION PROCEDURES 23. Insert the cable strap [A] to the hole on the back of the scanner rack. NOTE: There are 3 holes [B] for the cable strap on the back of the scanner rack. Insert the cable strap on the hole where the cables easily bind.
  • Page 18: Moving The Printer

    MAINFRAME AND OPTION INSTALLATION PROCEDURES 3 December 2004 Moving the Printer G422I228.WMF G422I229.WMF The printer can be moved using the base board [A]. 1. Release the stoppers of the wheels. 2. Pull out the base board till you see the stepped screws from the holes of the base board.
  • Page 19: Preventive Maintenance Schedule

    3 December 2004 USER MAINTENANCE 2. PREVENTIVE MAINTENANCE SCHEDULE 2.1 USER MAINTENANCE Clean these parts at every EM. Abbreviations: Clean, Replace, Emergency Maintenance Item 90 K Remarks Pick-up roller Wipe with a wet cloth (alcohol or water). Feed roller Wipe with a wet cloth (alcohol or water). Separation pad Wipe with a wet cloth (alcohol or water).
  • Page 20: Replacement And Adjustment

    3 December 2004 SPECIAL TOOLS 3. REPLACEMENT AND ADJUSTMENT CAUTION Turn off the main power switch and disconnect the machine’s power cord before you do the procedures in this section. 3.1 SPECIAL TOOLS Part number Description G4049005 RS-13 Chart (A4) B6455010 SD Card B6456800...
  • Page 21: Separation Pad

    REPLACEMENT 3 December 2004 3.2.2 SEPARATION PAD G422R102.WMF Open the ADF cover. Open the original guide plate [A]. [B]: Separation pad 3.2.3 ADF REAR COVER G422R103.WMF Open the ADF cover. [A]: ADF rear cover (! x 1) NOTE: 1) Release the fastener [B] after you remove the screw. 2) The mylar hinge [C] easily comes off when you remove the ADF cover.
  • Page 22: Original Set And Registration Sensors

    3 December 2004 REPLACEMENT 3.2.4 ORIGINAL SET AND REGISTRATION SENSORS G422R123.WMF Open the ADF cover. Release the fasteners [A] [B]: ADF top cover [B]: Registration sensor (" x 1) [C]: Original set sensor (" x 1)
  • Page 23: Read And Exit Sensors

    REPLACEMENT 3 December 2004 3.2.5 READ AND EXIT SENSORS G422R124.WMF G422R125.WMF G422R126.WMF ADF top cover (☛ 3.2.4) [A]: ADF rear cover (! x 1) [B]: ADF front cover (! x 1) [C]: Original tray [D]: ADF transport unit (! x 8, " x 2) Remove the read sensor unit [E] ("...
  • Page 24: Adf White Plate

    3 December 2004 REPLACEMENT 3.2.6 ADF WHITE PLATE G422R122.WMF Open the ADF. [A]: ADF white plate (spring x 2) Instaling the ADF white plate Make sure that the white mylar [B] is put inside the guide [C]. If the white mylar is not put inside the guide, it can cause original misfeeds.
  • Page 25: Feed Motor And Transport Motor

    REPLACEMENT 3 December 2004 3.2.7 FEED MOTOR AND TRANSPORT MOTOR G422R104.WMF ADF rear cover (☛ 3.2.3) Feed motor Remove the feed motor unit. (! x 3, long spring x 1, " x 1) [A]: Feed motor (! x 2) NOTE: First remove the spring. Transport motor Remove the transport motor unit.
  • Page 26: Scanner Top Cover

    3 December 2004 REPLACEMENT 3.2.8 SCANNER TOP COVER G422R105.WMF G422R106.WMF [A]: ADF (! x 2) NOTE: When removing the ADF, place it in the platen face up. [B]: Operation panel (! x 2, " x 2)
  • Page 27 REPLACEMENT 3 December 2004 G422R107.WMF G422R108.WMF [A]: Operation panel lower cover (! x 3) [B]: Scanner front cover (! x 2) NOTE: To remove the scanner front cover, pull up "1" and pull to the side at the left or right ("2"). [C]: Scanner top cover (! x 4)
  • Page 28: Exposure Glasses

    3 December 2004 REPLACEMENT 3.2.9 EXPOSURE GLASSES G422R109.WMF Scanner top cover (☛ 3.2.8) [A]: Scanner exposure glass (! x 13) [B]: ADF exposure glass (! x 6)
  • Page 29: Scanner Optics Unit

    REPLACEMENT 3 December 2004 3.2.10 SCANNER OPTICS UNIT NOTE: Do not touch the scanner optics unit shaft [G] with your bare hands. This can cause rust and incorrect movement. If you touch the shaft with your bare hands, clean the shaft with a cloth and alcohol. G422R111.WMF G422R112.WMF 1.
  • Page 30: Reassembling The Scanner Optics Unit

    3 December 2004 REPLACEMENT Reassembling the scanner optics unit G422R113.WMF 1. Connect the flat cable [A]. 2. Cable holder [B] (! x 1) 3. Make the front edge [C] of the scanner optics unit hold the white part [D] of the timing belt.
  • Page 31: Exposure Lamp

    REPLACEMENT 3 December 2004 3.2.11 EXPOSURE LAMP NOTE: Do not touch the scanner optics unit shaft with your bare hands. This can cause rust and incorrect movement. If you touch the shaft with your bare hands, clean the shaft with a cloth and alcohol. G422R110.WMF G422R111.WMF Scanner top cover (☛...
  • Page 32: Scanner Motor

    3 December 2004 REPLACEMENT 3.2.12 SCANNER MOTOR NOTE: Do not touch the scanner optics unit shaft with your bare hands. This can cause rust and incorrect movement. If you touch the shaft with your bare hands, clean the shaft with a cloth and alcohol. G422R114.WMF G422R115.WMF Remove the scanner optics unit shaft [A].
  • Page 33: Psu (Power Supply Unit)

    REPLACEMENT 3 December 2004 3.2.13 PSU (POWER SUPPLY UNIT) G422R116.WMF Scanner top cover (☛ 3.2.8) [A]: PSU (! x 6, " x 2) 3-14...
  • Page 34: Main Control Board

    3 December 2004 REPLACEMENT 3.2.14 MAIN CONTROL BOARD NOTE: In this procedure, you must turn the scanner upside down. Before you do this, do the following with "User Tools". NOTE: NOTE: G422R120.WMF 1. Turn on the main power of this machine. 2.
  • Page 35: Network Board And Usb Board

    REPLACEMENT 3 December 2004 3.2.15 NETWORK BOARD AND USB BOARD G422R118.WMF G422R119.WMF • Before removing the network board, do the "Backup SD card " procedure. (☛ 5.2.3) • After installing the new network board, do the "Restore SD card " procedure. (☛...
  • Page 36: Adf Skew Adjustment

    3 December 2004 ADF SKEW ADJUSTMENT 3.3 ADF SKEW ADJUSTMENT This adjustment is used for skew that is caused by a mechanical problem in the ADF. Before you do this adjustment, check if the scanned image has skew in book mode.
  • Page 37: Troubleshooting

    3 December 2004 LED FUNCTION MODE 4. TROUBLESHOOTING 4.1 LED FUNCTION MODE 4.1.1 LED FUNCTION TABLE Blinking Total LEDs Conditions Contents (sec.) blinking cycles Power on Alarm Overall machine check Machine – initialization Scanning Normal mode – Stand-by Normal mode Blinking Jam detection Jam*...
  • Page 38: Normal Mode

    LED FUNCTION MODE 3 December 2004 4.1.2 NORMAL MODE First turn off and on the main power when an error occurs. If an error remains after doing that, do the actions in the column of “possible cause”. Descriptions Conditions Symptoms Possible causes The fan in the scanner is •...
  • Page 39: Self Diagnostic Mode

    3 December 2004 LED FUNCTION MODE 4.1.3 SELF DIAGNOSTIC MODE This is done only when you turn on the main power of the machine. (☛ 4.1.1) First turn off and on the main power when an error occurs. If an error remains after doing that, do the actions in the column of “possible cause”.
  • Page 40: Sc Codes

    SC CODES 3 December 2004 4.2 SC CODES Possible cause / Trouble SC Code Item Definition shooting SC4020 Functional problems When the machine detects • System does not work an impossible recovery correctly. error. (e.g. firmware error) 1. Turn the main power on/off.
  • Page 41: Service Tables

    3 December 2004 DIP SWITCH FUNCTION 5. SERVICE TABLES 5.1 DIP SWITCH FUNCTION These switches are on the MCB inside the mainframe. Normally, these are not used in the field. SW No. Function Setting Default Boot Mode PCB Production Type Not Used –...
  • Page 42 SERVICE PROGRAM MODE 3 December 2004 Class Description Function number Density Setup 6 Adjusts Density 6. [0-255/190/1] Density Setup 7 Adjusts Density 7. [0-255/220/1] Flash ROM disc format Formats the flash ROM Binary color Selects binary color [Yes or No/No] Backup SD Card Downloads the following settings to the SD Card.
  • Page 43 3 December 2004 SERVICE PROGRAM MODE SP 1-008 to 014: Density setup examples These values control the image density for the 7 settings on the operation panel. Here are three examples Case 1: There is a relatively small difference between the minimum and maximum settings Case 2: The higher values in this example make the image lighter.
  • Page 44: Firmware Update

    SERVICE PROGRAM MODE 3 December 2004 5.2.2 FIRMWARE UPDATE G422S107.WMF This machine has these two firmware types: • Scanner firmware • Network firmware NOTE: 1) You can keep both firmware programs on the same SD card. 2) Do not put firmware programs from another machine on the SD card you will use for this machine.
  • Page 45: Network Firmware Update

    3 December 2004 SERVICE PROGRAM MODE Network firmware update G422S108.WMF Before you do this procedure, prepare an SD card that contains the required firmware. 1. Turn off the main power of the machine. 2. Do the “Backup SD card” procedure. (☛ 5.2.3 Backup SD card procedure) 3.
  • Page 46: Backup And Restore Sd Card

    SERVICE PROGRAM MODE 3 December 2004 5.2.3 BACKUP AND RESTORE SD CARD G422D107.WMF Backup SD card procedure 1. Turn off the main power. 2. Install an SD card, which does not have any data, into the SD card slot [A]. 3.
  • Page 47: Detailed Section Descriptions

    3 December 2004 MACHINE OVERVIEW 6. DETAILED SECTION DESCRIPTIONS 6.1 MACHINE OVERVIEW [C] [D] G422D101.WMF [A]: Registration roller [J]: Scanner optics unit [B]: Registration sensor [K]: Junction gate [C]: Separation pad [L]: Exit sensor [D]: Feed roller [M]: Scanner motor [E]: Pick-up roller [N]: Second transport roller [F]: Original set sensor...
  • Page 48: Drive Mechanism

    DRIVE MECHANISM 3 December 2004 6.2 DRIVE MECHANISM ADF drive G422D105.WMF Feed motor [A]: Controls the pick-up roller [B], feed roller [C], and registration roller [E]. Transport motor [D]: Controls the first transport roller [F], second transport roller [G], and exit roller [H] Scanner drive G422D106.WMF Scanner motor [A]:...
  • Page 49: Block Diagram

    3 December 2004 BLOCK DIAGRAM 6.3 BLOCK DIAGRAM Operation Panel Board Main Baord Network Board Exposure Lamp Lamp Stabilizer USB Baord Home Position Motor/ Sensor G422D500.WMF The MCB (Main Controller Board) controls this machine. Its CPU checks all sensors and controls the ADF, all motors/fans, and the USB board. It also processes images from the SBU.
  • Page 50: Control System

    CONTROL SYSTEM 3 December 2004 6.4 CONTROL SYSTEM Motor/ Motor Drivers Motor SDRAM LVDS Drivers (128MB) Gate Arrey Local B U S EEPROM SCSI-2 Flash ROM PROM Controller Main Board Network Control Board G422D501.WMF • LVDS (Low Voltage Differential Signaling): This IC gets digital data from the SBU, and converts it from parallel to serial.
  • Page 51: Network Board

    3 December 2004 CONTROL SYSTEM Network board Operation Panel Board SDRAM FROM I/O Port (128 MB) (32 MB) Controller Local B U S P C I B U S EEPROM (256 kb) PC Card Controller Controller Network Board SD Card PCMCIA Ethernet G422D502.WMF...
  • Page 52: Scanning Overview

    SCANNING OVERVIEW 3 December 2004 6.5 SCANNING OVERVIEW G422D102.WMF Initializing • The exposure lamp [A] (a xenon lamp in this model) illuminates the original. The image is reflected onto a CCD [B] (charge coupled device) via several mirrors, and through the lenses. •...
  • Page 53: Detailed Functions

    3 December 2004 DETAILED FUNCTIONS 6.6 DETAILED FUNCTIONS 6.6.1 PICK-UP AND SEPARATION G422D108.WMF G422D109.WMF • The originals push the actuator [A]. Then the original set sensor [B] turns on. • After you push the start button, the feed motor [C] starts to turn. It pushes the pick-up roller [D] down to the original.
  • Page 54: Original Transport And Exit

    DETAILED FUNCTIONS 3 December 2004 6.6.2 ORIGINAL TRANSPORT AND EXIT Single–sided originals G422D103.WMF • The feed motor feeds the separated page of the original to the registration roller [A]. • The registration sensor [B] detects the page. Then the registration roller corrects original skew.
  • Page 55: Double-Sided Originals

    3 December 2004 DETAILED FUNCTIONS Double-sided originals – Front side – • An original is fed to the exit sensor in the same manner as for the single-sided scanning mode. G422D103.WMF – Rear side – • When the exit sensor [A] detects the trailing edge of an original, the exit roller [C] turns in reverse.
  • Page 56: Image Processing

    IMAGE PROCESSING 3 December 2004 6.7 IMAGE PROCESSING 6.7.1 OVERVIEW SDRAM 256MB x 4 Analog Front End Main Control Board Analog Data (R) Digital Data Converter Main Control Analog Data (G) Digital Data Multiplexer LVDS Converter DATA/HSYNC DATA 10bit LVDS Image Processing Analog Data (B)
  • Page 57: Image Processing In The Sbu

    3 December 2004 IMAGE PROCESSING 6.7.2 IMAGE PROCESSING IN THE SBU The CCD converts the light reflected from the original into an analog signal. Each analog signal is transmitted to the analog front end IC. The analog front end IC does the following operations. 1.
  • Page 58: Scan Line Correction

    IMAGE PROCESSING 3 December 2004 Scan line correction The CCD consists of three lines of elements, one for each color (red, green and blue). Since there is a slight gap between the lines, each line is scanning a slightly different part of the image. To produce the final image, these three outputs need to be synchronized.
  • Page 59: Color Resolution

    3 December 2004 IMAGE PROCESSING Color resolution Because of the differences in color space, the color observed by a person, and the color value sensed by the CCD can vary. Color resolution corrects the color data gathered by the CCD. It uses a color table that adjusts for the way particular colors are displayed on specific CRTs.
  • Page 60: Scale Processing

    IMAGE PROCESSING 3 December 2004 Scale processing This process generates image densities of up to 256 levels for each pixel. It uses simple binary, dithering, and error diffusion processing. Simple binary processing sets the level based on a threshold value. There are no shades of gray.
  • Page 61: Specifications

    3 December 2004 SPECIFICATIONS SPECIFICATIONS 1. MAINFRAME Scanning method: Flat-bed color scanner with ADF Book scan: Horizontal: Max. 216 mm [8.6"] Min. 5 mm [0.2"] Vertical: Max. 297 mm [11.9"] Min. 5 mm [0.2"] Document weight: 60 - 105 g/m (16 ~ 28 lb) ADF: Document size:...
  • Page 62 SPECIFICATIONS 3 December 2004 Power: NA: AC 120 V / 1.2A (60 Hz) EU: AC 220 - 240 V / 1.2A (50 Hz/ 60 Hz) Power consumption Standby: 12 W or less (without all possible Scanning: 96 W ± 15% (NA) options): 93 W ±...

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