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InoTec SCAMAX 2600 Service Manual

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Service Manual
Document Scanner
®
SCAMAX
2600/4000
As at 04.06.2002 (SB)
®
SCAMAX
Tech. Manual 06/2002
T-1
2600/4000

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Summary of Contents for InoTec SCAMAX 2600

  • Page 1 Service Manual Document Scanner ® SCAMAX 2600/4000 As at 04.06.2002 (SB) ® SCAMAX Tech. Manual 06/2002 2600/4000...

  • Page 2: Table Of Contents

    CANNER ODELS PTIONS AND CCESSORIES ..........................5 ECHNICAL : ................6 OMPLIANCE WITH EGULATIONS AND TANDARDS SYSTEM COMPONENTS........................8 SCAMAX 2600 ................... 8 WITH VIDEO INTERFACE SCAMAX 2600 SCSI .................... 8 WITH INTERFACE SCAMAX 2600 .................. 9 WITH REYSCALE INTERFACE SCANNER COMPONENTS AND FUNCTIONS.................
  • Page 3 3.13.2.2 Condition dependent Faults with GAL 2.2 ..................58 3.13.2.3 Condition dependent Faults with GAL 2.3 ..................59 3.13.3 Paper Feed with Separation System ..................60 3.13.4 Rubber Roller Pairs (two) ..................... 63 3.13.5 Paper Output Path ........................ 63 3.13.6 Output Hopper ........................

  • Page 4: Introduction

    This PC also receives the scanned images and processes them further as required. The SCAMAX 4000 is a colour document scanner. It is identical in construction to the SCAMAX 2600 , except that it is equipped with a colour camera.

  • Page 5: Technical Data

    1.2 Technical Data - Scanner type: CCD array camera - Number of scan units: - 1 scan unit for single sided scanning - 2 scan units for simultaneous scanning of front and back page - Resolutions: 200, 240 (SCAMAX2600 only), 300 and 400 dpi - Document widths: 26 mm - 320 mm - Document lengths: from 60 mm upward - Document thickness: various, can be set for each stack or single sheet...

  • Page 6: Compliance With Regulations And Standards

    - relative humidity: 30% to 80% without condensation - Noise level: less than 70 dB 1.3 Compliance with Regulations and Standards: The scanners Scanner SCAMAX 2600/4000 comply with the regulations and standards that form the basis of the CE compliance declaration that follows: ®...
  • Page 7 ® SCAMAX Tech. Manual 06/2002 2600/4000...

  • Page 8: System Components

    The PC’s scan controls the video board via appropriate drivers, which in turn controls the scanner. 2.2 SCAMAX 2600 with SCSI interface In a SCAMAX 2600 with SCSI interface the bitonal image data and all commands are transmitted via a SCSI cable.

  • Page 9: Scamax 2600 With Greyscale Interface

    Application module 2 It is possible to control the SCAMAX 2600 via SCSI commands without using the Twain or ISIS driver. Since the command set of the SCSI interface is by and large compatible with other manufacturers it is relatively easy to generate a generic driver without great programming effort.
  • Page 10 These are connected to the second scanner interface in the PC. If the SCAMAX 2600 has a DTplus-Board fitted for each scan module that board comes with an integrated greyscale interface. Should greyscale images be required it is possible to fit a plug connection on each board (special option) to lead to outside port to transmit the greyscale signal to the PC.

  • Page 11: Scanner Components And Functions

    The endorser - consisting of printer unit, endorser board and photocell. Used to print date, time, and so on onto the back of each document during the scan process. The following page shows a cross section of the SCAMAX 2600/4000 document scanner: ®...
  • Page 12 ® SCAMAX Tech. Manual 06/2002 T-12 2600/4000...
  • Page 13 The principal of operation is as follows: A single sheet or a stack of documents is placed in the input hopper. A photocell detects the presence of document/s. When the scan PC issues a scan command the machine pulls in the single sheet or top sheet of the stack via the feed roller.
  • Page 14 ® SCAMAX Tech. Manual 06/2002 T-14 2600/4000...

  • Page 15: Ccd-Linear-Camera

    The scan speed (paper transport speed) is automatically adjusted according to the resolution selected. 200 dpi requires only half the number of lines, thus the paper can be transported at double the speed. SCAMAX 2600 SCAMAX 4000 Resolution in dpi Paper transport speed in m/min.
  • Page 16 Illustration of optical reduction ® SCAMAX Tech. Manual 06/2002 T-16 2600/4000...

  • Page 17: Camera Types

    The reading of the CCD linear sensor and conversion into digital values described above takes place on two channels. One channel each for odd and even pixels. With colour two channels are used for each colour. A shielded ribbon cable is connected to the CCD board (two for colour), which provides the connection to the controller board and for colour also to the video interface.

  • Page 18: Camera Faults

    3.1.2 Camera Faults The service program is used to determine whether a camera is faulty. The program can display the camera status. If the camera status is shown as OK it is possible that the camera sends wrong data or no data at all.

  • Page 19: Changing Camera Board Type 0

    Replace the post connector and switch the scanner on. The next step is to set CCD sample delay, which calculates and adjusts run time differences of the various components, using the service program. To set the CCD sample delay insert a sheet of white calibration paper in portrait mode into the scanner and transport it past the roller pair.
  • Page 20 Unscrew the IC support plates and mark the position of the CCD sensor on the board mounting plate. Board mounting plate CCD sensor IC support plates Plug the new CCD sensor into the IC socket on the board and align to the previously marked position. CAUTION! Check polarity.

  • Page 21: Camera Adjustment For Scamax ® 2600 Type 3

    ® 3.1.2.4 Camera Adjustment for SCAMAX Type 3 2600 The lamps must have reached their proper operating temperature prior to adjustment of the camera via the service program (operating period about 10 mins.). To facilitate camera adjustment it is necessary to remove the output hopper plate by removing the two fixing screws.
  • Page 22 Rear paper roller Camera base plate Illustration 2 Illustration 1 Point of view Point of view To align Paper Scan slot Back side Camera base plate Top paper roller Point of view Scan slot Front side Viewd through drill holes Paper Illustration 3 Scan slot...
  • Page 23 Focus is checked by scanning at 400dpi. All image processing options (cropping, deskew, filters, etc.) have to be switched off and a fixed threshold must be used. Use the InoTec test sheet for this purpose. Focus is OK when the direction of the DIN test symbols (screw heads) is at least 50% recognizable at a value of 60.

  • Page 24: Camera Adjustment For Scamax ® 2600 Type 0

    ® 3.1.2.5 Camera Adjustment for SCAMAX Type 0. 2600 When adjusting camera type 0 the following differences to type 3 must be observed. Black and white values must be set manually by using the four potentiometers. Furthermore, it is not possible to set the CCD sample delay for the type 0.

  • Page 25: Camera Adjustment For Scamax

    Setting the CCD sample delay is only possible from ScanServ Version 1.4 and Firmware 3.25 EC. Focus is checked by scanning at 400dpi, using the InoTec test sheet. Focus is OK when the direction of the DIN test symbols (screw heads) is at least 50% recognizable at a value of 60.

  • Page 26: Controller-Board Rev. B

    3.2 Controller-Board Rev. B X6 16 pin 4 LED´s D2 D1 3 pin 9600 Baud Control to I/O-board cable to trans- position PL1 Clock 19200 Baud parency DIL-Switch module Clock EPROM 3.XX EX 40 MHz PC interface or SCSI- Board bitonal Shielded X7 10 pin...
  • Page 27 The controller board manages all functions of the SCAMAX 2600/4000. The scanner communicates with the scan PC via a serial interface (RS232), which controls the cameras, motors, Dtplus boards and the endorser, according to commands received. In addition, with the SCAMAX2600, image data from the cameras are processed for video interface (8 Bit parallel).
  • Page 28 An EPROM of the type 27C512 is used to store the firmware for the SCAMAX 2600/4000. The firmware can be exchanged or updated by changing the EPROM. Firmware is downward compatible, which means newer firmware will be fully functional with older hardware versions.

  • Page 29: Exchanging The Controller Board

    7.) For scanners of the type 2600 the sample delay has to be set and a white calibration performed (see point 3.2.1.4) 8.) For scanners of the type 4000 perform a white calibration Return the faulty controller board to InoTec together with the scanner’s serial number and scan counter values. ®...

  • Page 30: Dtplus Board

    3.4 DTplus Board The DTplus board is an optional accessory for the SCAMAX 2600. It enables two-dimensional binarisation, which is particularly useful for low contrast documents or those with certain colour hue mixes. A separate DTplus board is required for each camera (front and back).
  • Page 31 camera can easily be led to the scan PC. To achieve this, the 40-pin plug on the DTplus board is connected to the scan PC. For EMV technical reasons these plugs are only fitted if this feature is actually being used. ®...
  • Page 32 Controller Board DT plus Board 8 bit Video Video Scanner grey scale bitonal bitonal module Scan PC 8 bit grey scale to Scan PC ® SCAMAX Tech. Manual 06/2002 T-32 2600/4000...

  • Page 33: I/O Board

    3.5 I/O Board The I/O board converts the TTL signals from the controller board to signals required by the various 'users', such as motors and so on. Conversely, it converts output from sensors, photocells and switches into TTL signals. This board controls the following components: the paper transport stepper motor the stepper motor that sets the paper thickness the DC elevator motor for the input hopper plate...
  • Page 34 ® SCAMAX Tech. Manual 06/2002 T-34 2600/4000...

  • Page 35: Ultrasound Double-Feed Detector

    A push button is located at the left of the SCAMAX 2600/4000 feeder front panel. Ultrasound double-feed detection is turned off as long as this button is pushed yet paper separation remains active.

  • Page 36: Footswitch

    3.7 Footswitch The footswitch is used when thick, stapled or folded documents are to be scanned. Turning the paper separation on and off can be done with the footswitch. The footswitch cable is plugged into a socket at the back of the scanner. As long as the footswitch is depressed paper separation is turned off and the ultrasound double-feed detector is deactivated.

  • Page 37: Photocell

    3.8.2 Photocell The photocell is a photoelectric reflection sensor that is built into the paper transport path. It is housed within a rectangular cutout in the guide plate. The senor recognises the leading edge of the document and initiates the print process after an appropriate delay. The engagement of the clutch at the start of a scan process causes the print head to drive into the print position.
  • Page 38 To restore all settings to the original factory settings load the file INOTEC.EEP by pressing F5. Subsequently pressing F2 transferres these values to the endorser. Caution: Only change the parameters described below!!! ®...

  • Page 39: Endorser Settings

    3.8.4 Endorser Settings The inkjet cartridge employed is capable of printing 64 pixels simultaneously. These 64 pixels are aligned in one line. As the paper is transported through the scanner the print head prints line by line, which generates the character to be displayed. Line advance is controlled by the paper transport speed of the scanner.

  • Page 40: Print Density For Text/Barcodes (Druckdichte/Bcdichte%)

    3.8.4.1 Print Density for Text/Barcodes (Druckdichte/BcDichte%) The print density determines the distance between two pixel lines. However, this distance is also influenced by the paper transport speed of the scanner. To ensure that the print image is always the same regardless of paper transport speed (various resolutions) the controller sets the print density according to the resolution selected.

  • Page 41: Character Distance (Charabstand)

    3.8.4.2 Character Distance (CharAbstand) A character string with very small spaces between characters is hard to read. Therefore, a character distance has been implemented, which is achieved by inserting 'blank pixel lines'. Blank lines can be inserted within certain limits to improve the character display. Hozizontal Pixel (Printdirection) Character Distance = 2...

  • Page 42: Thickness For Text/Barcodes (Fettdruck/Bcfettdruck)

    3.8.4.3 Thickness for Text/Barcodes (Fettdruck/BcFettdruck) The last possibility to influence the print image is the parameter Thickness (Print Bold). The thickness value sets the number of 'pixel line repeats'. Increasing this parameter setting causes a fatter print. The minimum number of pixel lines printed for a vertical line is: Thickness x 2 Thickness for text and barcodes is handled separately by the endorser.

  • Page 43: Endorser Counter (Paginummerh/L)

    3.8.4.5 Endorser Counter (PagiNummerH/L) The endorser has an integral eight-position counter that is automatically incremented after each print cycle. The counter contents can be part of the character string printed on each document. When the counter reaches 99999999 it is automatically reset to 00000000. Normally the counter is set by the scan software or the SCSI driver, but it can also be set via the menu.

  • Page 44: Print Head Voltage (Inkhead Spng)

    3.8.4.9 Print Head Voltage (InkHead Spng) Different voltages can power the inkjet cartridge jets. Increasing print head voltage causes more ink to be ejected during the print process. Value Jet Voltage 24.8V 25.2V 27.0V Default 3 28.0V 3.8.5 Change Endorser Settings The endorser has a single line display with background lighting.
  • Page 45 *S –set by scan software. PAGI – INK /900 *C –set by the Controller. Displays software version ProgVers x.xxx of the Endorser. Displays hardware version HWVers x.xx of the processor board. Displays the default string set. TextNumber TextNumber Edit the top 4 positions of the CounterHigh CounterHigh 0000 counter.
  • Page 46 Drives print head into PrintPos print position. Drives print head into StandbyPos standby position. Edit time print head stays in print PrtPosTime PrtPosTime 0060 position. Default: 60 s Displays time set in ms for moving MoveTime MoveTime print head. Displays config. byte 1 Config1 Config1 11000000 Displays config.

  • Page 47: Power Supply

    Initiates endorser reset. ProcessorReset Initiates test print. (insert TestPrint paper under endorser!) Displays current date. Date : DD.MM.YY Date : 01.01.00 Displays current time. Time : HH.MM:SS Time : 13.19:24 3.9 Power Supply 3.9.1 Mains Power Switch Unit The mains power switch unit contains: A ceramic housing with two fuses T 3.15A/250V, ∅5X20mm, suitable for both 230V and 115V mains voltage.

  • Page 48: Mains Transformer

    3.9.2 Mains Transformer Mains power for the mains power supply is branched off before the mains transformer. Both secondary power circuits of the mains transformer are protected by to fuses with a rating of 2A T. One secondary power circuit supplies the two fluorescent lamps with 21,5 V AC. The other supplies 24 V AC to the I/O board, which generates other voltages locally.
  • Page 49 ® SCAMAX Tech. Manual 06/2002 T-49 2600/4000...

  • Page 50: Lamp Unit

    Output is +24V DC that is supplied to the electronic ballast of the fluorescent lamp/s. 3.10.2 Electronic Lamp Ballasts The SCAMAX 2600/4000 has one or two (simplex or duplex) electronic ballasts of the type: EVG INSTALL-S 1x11W / 24V, one for each fluorescent tube.

  • Page 51: Operator Panel

    3.11 Operator Panel The operator panel contains three push button switches with one or two integrated LED's and one BCD- switch. The push button switches are soldered onto a circuit board, which is mounted behind the front panel. The BCD-switch is of the snap-in type. It is connected to the circuit board via a plug and cable. In addition the circuit board has a two position switch (HI/LOW), which is used for various service settings.
  • Page 52 The initial feed belts and the separator rollers cover wear over a period of time. This results in the distance between feed belts and separator rollers becoming ever greater. The setting on the BCD-switch has to be decreased to compensate for the wear and tear. When a setting of '0' has been reached the switch on the circuit board has to be changed from HIGH (factory setting) to LOW and a machine reset has to be executed (switch scanner off, then on).

  • Page 53: Optical Components Unit

    In a SCAMAX 2600/4000 duplex version the two miniature fluorescent tubes are held at each end by a spring-loaded lamp housing. The two lamp holders are connected by a piece of sheet metal that also prevents unwanted light emission upwards or downwards as appropriate.

  • Page 54: Paper Transport

    3.13 Paper Transport The paper transport unit facilitates document input, followed by initial feed, transport, re-direction and final output of documents. The unit has the following components: Input hopper with drive motor Paper feed with separation mechanism Two rubber roller pairs Paper output path Output hopper Drive mechanism with stepper motor...
  • Page 55 The I/O board will send a command to the lift motor in three circumstances (Motor is running): 1) The switch „Stack mode/Single sheet feed“ is off (single sheet feed). The motor drive the plate upwards till its pin triggers the top microswitch. Lifting the initial feed rollers, which triggers the forked photocell (LED is lit) also stops the motor.
  • Page 56 ® SCAMAX Tech. Manual 06/2002 T-56 2600/4000...

  • Page 57: Diagnosing Paper Input Hopper Faults

    3.13.2 Diagnosing Paper Input Hopper Faults Various errors can occur with the paper input hopper. The next three chapters describe these errors and offer methodologies for diagnosing them. 3.13.2.1 General Faults Faults described in this section can occur regardless of switch settings on the scanner, as well as with both GAL versions.

  • Page 58: Condition Dependent Faults With Gal 2.2

    3.13.2.2 Condition dependent Faults with GAL 2.2 To employ the following flow diagram for fault diagnostics the scanner must be switched on and the stop/start button activated (LED green). Stack mode (auto feed) Paper Table present doesn’t drive to position Table Table Table...

  • Page 59: Condition Dependent Faults With Gal 2.3

    3.13.2.3 Condition dependent Faults with GAL 2.3 To employ the following flow diagram for fault diagnostics the scanner must be switched on and the stop/start button activated (LED green). Stack mode (auto feed) Paper Table present doesn’t drive to position Table Table Table...

  • Page 60: Paper Feed With Separation System

    3.13.3 Paper Feed with Separation System The initial feed rollers, consisting of three red rubber belts, are mounted on two levers. Its own weight presses it onto the top document. The lowest position of the initial feed rollers can be adjusted vertically via two set-screws (see above "Document Feeder Adjustment").
  • Page 61 The paper thickness selector can be set to values between 0 and 9. The common setting for 80 gsm paper is '5'. To achieve this the entire adjustment area can be shifted in twelve steps via a parameter. This is necessary to allow for unavoidable manufacturing tolerances. The two guide plates in the area of the separation mechanism float the documents to the first pair of rubber rollers.
  • Page 62 ® SCAMAX Tech. Manual 06/2002 T-62 2600/4000...

  • Page 63: Rubber Roller Pairs (Two)

    3.13.4 Rubber Roller Pairs (two) There are two rubber roller pairs, one just prior to the two fluorescent tubes and another one behind the tubes. The front rubber rollers each have seven cylindrical cut-outs that accommodate the seven finger extensions of the guide plates. The rear rubber rollers have a cylindrical form.

  • Page 64: Output Hopper

    Power is transmitted from the main drive via a cogged-wheel to the lower roller. The five transport belts travel over the rear guide plate and transmit drive power to the other rollers. The top roller is housed in separate shaft housings (with ball bearings and diaphragm spring). The roller is pushed into the shaft housings.

  • Page 65: Drive Mechanism With Stepper Motor

    3.13.7 Drive Mechanism with Stepper Motor A stepper motor drives the total paper transport including the document feeder. Transport speed is adjusted to the resolution selected and is trimmed via a parameter. The drive system has the following components: a stepper motor a flat belt drive a round belt an electromagnetic clutch with gear...
  • Page 66 ® SCAMAX Tech. Manual 06/2002 T-66 2600/4000...
  • Page 67 ® SCAMAX Tech. Manual 06/2002 T-67 2600/4000...

  • Page 68: Description Of Scan Routine Flow

    3.14 Description of Scan Routine Flow The scan routine is initiated by the PC via the scanner interface (DPU, HiScan or dunord) or via the inbuilt SCSI-Interface. Originally, of course, the operator and the user program issue the command. First the scan status is tested. If, since the last scan process, a document has passed through the scanner unchecked the scanner issues a „Paper not scanned“...

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Scanmax 4000

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