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IMAGE PROCESSING

3 December 2004

6-10

6.7 IMAGE PROCESSING

6.7.1 OVERVIEW

•

The CCD generates three analog video signals.

•

The AFE (Analog Front End processor) on the SBU (Sensor Board Unit) converts
these analog signals to 10-bit digital signals.

•

It sends these digital signals to the MCB (Main Control Board) board through the
LVDS (Low Voltage Differential Signaling).

•

The CPU on the MCB processes the image, and then the image data is sent to
the network or to a local printer through the NIB or the SCSI-2 controller.

CPU

Multiplexer

CCD CLK

Driver IC

B/W

LVDS

SBU

Analog Data (R)

Analog Data (G)

Analog Data (B)

CCD

Analog Front End

Digital Data

DATA/HSYNC

Digital Data

LVDS

DATA 10bit

Image

Processing

Main Control

CPU
DMA

Interface

Hi-speed USB

USB

Main Control Board

Network

Board

LAN

SDRAM 256MB x 4

Digital Data

A/D

Converter

A/D

Converter

A/D

Converter

Controller

G422D900.WMF

Содержание Sirius-SC1fn

Страница 1: ...Model Sirius SC1fn Machine Code G422 SERVICE MANUAL 3 December 2004 Subject to Change...

Страница 2: ...atteries in order to dispose of them later do not put more than 100 batteries per sealed box Storing larger numbers or not sealing them apart may lead to chemical reactions and heat buildup Lithium Ba...

Страница 3: ...Symbol What it means Refer to section number See Core Tech Manual for details Screw Connector E ring Clip ring Long Edge Feed LEF Short Edge Feed SEF...

Страница 4: ...MENT 3 1 3 1 SPECIAL TOOLS 3 1 3 2 REPLACEMENT 3 1 3 2 1 FEED UNIT 3 1 3 2 2 SEPARATION PAD 3 2 3 2 3 ADF REAR COVER 3 2 3 2 4 ORIGINAL SET AND REGISTRATION SENSORS 3 3 3 2 5 READ AND EXIT SENSORS 3 4...

Страница 5: ...Entering the service mode 5 1 5 2 2 FIRMWARE UPDATE 5 4 Scanner firmware update 5 4 Network firmware update 5 5 5 2 3 BACKUP AND RESTORE SD CARD 5 6 Backup SD card procedure 5 6 Restore SD card proce...

Страница 6: ...ine correction 6 12 White level correction 6 12 Gamma 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...

Страница 7: ...ance Over 95 4 mm 3 82 Left clearance Over 33 8 mm 1 35 Back side clearance Over 166 6 mm 6 66 Top clearance Over 530 mm 21 2 1 1 4 POWER REQUIRMENTS CAUTION 1 Make sure the plug is firmly inserted in...

Страница 8: ...ty instruction sheet 19 languages No Yes Registration Card No No Warranty Card No No Help Desk Card No No Operating Instruction Yes Yes Scanner reference Yes Yes TWAIN Driver 7 languages Yes NOTE Yes...

Страница 9: ...ccessories 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 Base Board 1 6 Tray 1 7 Plastic Bag 3 8 Trap 1 9 Screw Driver 1 1...

Страница 10: ...d Important Secure the adjuster screws till the stand is 65 67mm from the floor NOTE To set the stand to 65 67mm above the floor put in the adjuster screw till it is tightly secured Then turn it for 1...

Страница 11: ...ation 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 7 Put the rack in the upright position so that the...

Страница 12: ...ack to level 9 Set the table board C from above the rack 10 Secure the rack with table board C Insert the M4 8W screws x 6 to the screw holes on the back of the table board NOTE Change the height of t...

Страница 13: ...rews x 2 12 Set the base board C with the wheels on the floor Line the stand D and the cutout of the base board Then slide the base board to the rack as shown Important Slide the base board C to the r...

Страница 14: ...screw does not turn Make sure that the Stepped Screws are fully through the holes A on the base board NOTE Keep the base board to the position where you have secured the stepped screw to the screw ho...

Страница 15: ...tly lined 17 Insert the clips to the holes D on both sides of the table board Then secure the tray A with the table board B NOTE Put in the tray to the position where you have inserted the clips 18 Pu...

Страница 16: ...N INSTALLATION PROCEDURES 3 December 2004 1 10 20 Set the printer on the base board A 21 Slide the base board as shown 22 Turn the wheels of the base board outside Then lock them G422I222 WMF G422I223...

Страница 17: ...n 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 24 Set the Cables 25 Bind th...

Страница 18: ...e Printer 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 3 Remove the s...

Страница 19: ...ns Clean Replace Emergency Maintenance Item 90 K EM Remarks Pick up roller R C Wipe with a wet cloth alcohol or water Feed roller R C Wipe with a wet cloth alcohol or water Separation pad R C Wipe wit...

Страница 20: ...itch and disconnect the machine s power cord before you do the procedures in this section 3 1 SPECIAL TOOLS Part number Description Qty G4049005 RS 13 Chart A4 1 B6455010 SD Card 1 B6456800 USB Reader...

Страница 21: ...al guide plate A B Separation pad 3 2 3 ADF REAR COVER 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 re...

Страница 22: ...REPLACEMENT 3 3 Replacement Adjustment 3 2 4 ORIGINAL SET AND REGISTRATION SENSORS Open the ADF cover Release the fasteners A B ADF top cover B Registration sensor x 1 C Original set sensor x 1 G422R...

Страница 23: ...DF 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 x 1 F Read sensor Remove the exit sensor unit G x 2 x 1 H Exit...

Страница 24: ...nt 3 2 6 ADF WHITE PLATE 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 gui...

Страница 25: ...NOTE First remove the spring Transport motor Remove the transport motor unit x 3 spring x 1 B Transport motor x 2 NOTE First remove the spring Attaching the feed and transport motor Make sure that eac...

Страница 26: ...December 2004 REPLACEMENT 3 7 Replacement Adjustment 3 2 8 SCANNER TOP COVER A ADF x 2 NOTE When removing the ADF place it in the platen face up B Operation panel x 2 x 2 G422R106 WMF G422R105 WMF B...

Страница 27: ...2004 3 8 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 G422R107 WMF G...

Страница 28: ...3 December 2004 REPLACEMENT 3 9 Replacement Adjustment 3 2 9 EXPOSURE GLASSES Scanner top cover 3 2 8 A Scanner exposure glass x 13 B ADF exposure glass x 6 G422R109 WMF A B...

Страница 29: ...ptics unit to the notch D with the timing belt NOTE Do not push the scanner optics unit directly when you move it This can cause damage to the shaft and scratches on the rail I 6 Loosen the screw of t...

Страница 30: ...E and attach it to the shaft supports 5 Connect the lamp cable 3 2 11 Installing the exposure lamp 6 Loosen the screw of the tension bracket F NOTE The tension bracket is automatically adjusted by it...

Страница 31: ...Scanner top cover 3 2 8 Move the scanner optics unit to the center of its shaft with the timing belt NOTE Do not push the scanner optics unit directly when you move it This can cause damage to the sh...

Страница 32: ...ent If you touch the shaft with your bare hands clean the shaft with a cloth and alcohol Remove the scanner optics unit shaft A 3 2 10 Remove the timing belt for the scanner optics unit from the pulle...

Страница 33: ...REPLACEMENT 3 December 2004 3 14 3 2 13 PSU POWER SUPPLY UNIT Scanner top cover 3 2 8 A PSU x 6 x 2 G422R116 WMF A...

Страница 34: ...s key on the operation panel 3 Select System Settings 16 Prepare Carriage Lock Yes 4 Push Exit after Preparation Complete Turn Lock Switch to Lock shows on the LCD 5 Push Exit again to go to the ready...

Страница 35: ...e Restore SD card procedure 5 2 3 Lock the scanner optics unit 3 2 14 Then turn the scanner upside down Main control board plate 3 2 14 A Network board plate x 4 x 4 B Network board cover x 3 C Networ...

Страница 36: ...If there is skew in book mode there could be a different cause You can move the adjustment plate A to adjust the skew If the right side of the image is down 1 Move the screw of the adjustment plate f...

Страница 37: ...0 5 0 5 4 Fan lock error ADF Blinking Blinking 0 5 0 5 5 Exposure lamp error Blinking Blinking 0 5 0 5 6 EEPROM error Blinking Blinking 0 5 0 5 7 Gain Offset adjustment initialization error Blinking B...

Страница 38: ...n the ADF is locked over 200 ms after the fan motor has been activated Defective harness Defective fan Defective DF board Defective MCB 1 Check or replace the harness 2 Replace the fan 3 Replace the D...

Страница 39: ...k the scanner timing belt tension 5 Check or replace the harness Checking the ASIC for the CCD is not done correctly CCD ASIC error The DMA has no capacity for storing the scanning data Defective FFC...

Страница 40: ...problems When the machine detects an impossible recovery error System does not work correctly e g firmware error 1 Turn the main power on off 2 Replace the MCB SC4030 Battery voltage error When the b...

Страница 41: ...port Sets the FTP port number 002 Version Displays the network firmware version NOTE To check the scanner firmware version with Web Status Monitor or Web Image Monitor 003 Lot No Displays the machine...

Страница 42: ...Displays the jam location and counter For example Code 0x04 Total 38 means that jams have been detected 38 times at the registration sensor NOTE The following codes are displayed on the operation pane...

Страница 43: ...ence between the minimum and maximum settings Case 2 The higher values in this example make the image lighter Case 3 The lower values in this example make the image darker Case Density setup 1 Density...

Страница 44: ...ware update NOTE Before you do this procedure prepare an SD card that contains the required firmware 1 Turn off the main power of the machine 2 Install the SD card that contains the required firmware...

Страница 45: ...which contains the required firmware into the SD card slot A 4 Turn on the main power of the mainframe while holding down the and keys together 5 When START is displayed press the Start button 6 Follo...

Страница 46: ...D card 6 After completing the setting data backup turn off the main power and then remove the SD card from the SD card slot Restore SD card procedure 1 Turn on the main power 2 Install the SD card whi...

Страница 47: ...eparation pad D Feed roller E Pick up roller F Original set sensor G Exit roller H Scanner exposure glass I Exposure lamp J Scanner optics unit K Junction gate L Exit sensor M Scanner motor N Second t...

Страница 48: ...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 Scanner motor A Controls the scanner optics unit D...

Страница 49: ...motors fans and the USB board It also processes images from the SBU The Network board controls the PCMCIA interface I F SD Card I F Ethernet I F user interface operation panel and passes the image dat...

Страница 50: ...in memory for data 256MB x 4 EEPROM This stores scanning adjustment values and counter data The data stored in this ROM is not erased if the main power is turned off 128B Flash ROM This contains the s...

Страница 51: ...ss data SDRAM This stores scanning image data EEPROM This stores network controller settings such as MAC address and FTP port numbers CPU EEPROM 256 kb MCB Network Board LAN Controller PC Card Control...

Страница 52: ...is not activated within a certain time a home position sensor error will occur Scanning Platen mode When the machine receives a job command the scanner optics unit scans the white plate E and then an...

Страница 53: ...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 The feed motor drives the pick up roller through the feed roller E Then th...

Страница 54: ...roller A The registration sensor B detects the page Then the registration roller corrects original skew The feed motor turns in the opposite direction to drive the registration roller and the transpor...

Страница 55: ...ion roller After skew is corrected the roller G is pulled away from the exit roller C by the exit roller release solenoid The roller G is moved into contact with the exit roller C again by the exit ro...

Страница 56: ...ifferential Signaling The CPU on the MCB processes the image and then the image data is sent to the network or to a local printer through the NIB or the SCSI 2 controller CPU Multiplexer CCD CLK Drive...

Страница 57: ...nal The CPU on the MCB board controls the maximum gain After the above processes the analog signals are converted to 10 bit digital signals by the A D converters The shading function corrects these si...

Страница 58: ...riginal image density and the CCD output Gamma correction adjusts for deviations from this ideal It includes both brightness and contrast corrections Line skipping correction Ideally this machine woul...

Страница 59: ...unction using threshold value Auto binary processing When making simple binary scans of a light original e g gray text on a white background the threshold level is adjusted This allows the lighter sha...

Страница 60: ...graphs on machines that cannot output true grayscales It produces different shades of gray by creating patterns of black and white dots There are no gray dots The error diffusion process reduces the d...

Страница 61: ...lb Stack capacity 50 sheets 75 g m2 20 lb Scanning resolution Main scan 600 dpi Sub scan 600 dpi Grayscales Input 10 bits pixel for each color Output 8 bits pixel Initialization time Approximately 43...

Страница 62: ...Hz Power consumption without all possible options Standby 12 W or less Scanning 96 W 15 NA 93 W 15 EU Low power mode 6 W or less Operating environment Temperature 10 to 32 5 C 50 to 90 5 F Humidity 2...

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