Canon CANOSCAN N1220U Service Manual
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Canon CANOSCAN N1220U Service Manual

Canon CANOSCAN N1220U Service Manual

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SERVICE
MANUAL
REVISION 0
JY8-1317-00Z
JUNE 2000
COPYRIGHT
2000 CANON INC.
CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

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Summary of Contents for Canon CANOSCAN N1220U

  • Page 1 SERVICE MANUAL REVISION 0 JY8-1317-00Z JUNE 2000 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 2 COPYRIGHT © 2000 CANON INC. Printed in Japan Imprimè au Japon Use of this manual should be strictly supervised to avoid disclosure of confidential information. COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 3 FZK000001- F91-4672-200 LZK000001- F91-4682-200 JZK000001- F91-4692-200 KZK000001- CanoScan N1220U F91-4712-200 AZL000001- F91-4722-200 MZL000001- F91-4732-200 CZL000001- F91-4742-200 DZL000001- F91-4762-200 FZL000001- F91-4772-200 LZL000001- F91-4782-200 JZL000001- F91-4792-200 KZL000001- COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 4: Chapter 1: General Descriptions

    Periodical replacement parts, consumable parts durability, periodical servicing, special tools, solvents and lubricants Chapter 5: Troubleshooting Introduction, troubleshooting, location of electrical parts, canon scanner test Chapter 6: Parts Catalog Appendix: General Circuit Diagram, Main PCB Circuit Diagram, USB Connector PCB Circuit Diagram The information in this service manual is subject to change as the product is improved.

  • Page 5: Table Of Contents

    IV. ELECTRICAL SYSTEM ....3-11 A. Drive Unit ........ 3-5 A. USB Connector PCB ....3-11 B. Drive Wire ........ 3-8 B. Flat Cable ......3-13 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 6 B. Others ........5-1 IV. CANON SCANNER TEST ....5-5 TROUBLESHOOTING ..... 5-2 A. Outline ........5-5 A. Troubleshooting Image Defects ... B. How To Use Canon Scanner Test ..........5-2 ..........5-5 B. Troubleshooting Malfunctions ..........5-3 CHAPTER 6 : PARTS CATALOG FIGURE U01 ACCESSORY ....
  • Page 7 A. Front View ....... 1-4 D. Scanning a Document ..... 1-8 B. Rear View ......... 1-4 CUSTOMER’S DAILY MAINTENANCE IV. INSTALLATION ......1-5 ..........1-9 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 9: Features

    5. The scanner can be placed vertically to scan by using an optional stand. 6. The scanner draws its power from USB port on the host computer requiring no AC adapter. 1 - 1 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 10: Specifications

    Air pressure range, 613 to 1013 hPa · Power consumption : 2.5W (during operation) · Dimensions : 256.0(W) x 372.5(D) x 34.0(H) mm · Weight : 1.4 kg 1 - 2 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 11 · Dimensions : 256.0(W) x 372.5(D) x 34.0(H) mm · Weight : 1.4 kg Specifications are subject to change with product improvement. 1 - 3 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 12: Exterior Features

    Document Glass e Alignment Mark r Start Button t Carriage Lock Figure 1-1 B. Rear View q USB Port Figure 1-2 1 - 4 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 13: Installation

    5. Moving a scanner from a cold place to a warm place can cause condensation on the metal parts, resulting in a faulty operation. Give the scanner at least one hour to adjust to the room temperature before unpacking. 1 - 5 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 14: B. Installation

    2) Push the carriage lock to the unlock mark position. q Carriage Lock Figure 1-4 3) Return the scanner to its standard position. Note: Always lock the scanning unit during transport. 1 - 6 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 15 2) Connect the square connector (B plug) of the USB cable to the USB port on the scanner. q USB Port w USB Cable Figure 1-5 1 - 7 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 16: D. Scanning A Document

    3) Close the document cover, caring not to dislodge the document. 4) Send the "SCAN" command from the host computer to scan. 1 - 8 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 17: Maintenance

    3) Wipe the document glass with a dry cloth caring not to leave wiper marks. 1 - 9 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 19 A. Outline ........2-20 B. Document Scanning Sequence ........... 2-12 B. Outline of USB ...... 2-21 C. Contact Image Sensor ... 2-13 POWER SUPPLY ......2-23 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 21: Basic Operation

    The scanner functions are divided into the three main blocks of optical system, image processing system, and control system. Contact image sensor Host computer Drive motor Optical system Control system Image processing system Figure 2-1 2 - 1 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 22: Outline Of Electrical System

    Host computer USB Connector Control program Drive motor Main PCB Buffer Start button Contact Home position image sensor sensor Gate array Figure 2-2 2 - 2 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 23: Main Pcb Input And Output

    HPSEN "H" when scanning unit is in home position position sensor SCANSW "L" when start button was pressed Start button Figure 2-3 2 - 3 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 24: Basic Sequences

    Returns scanning unit Scanning unit returned to the home position? Returned more than 300 mm? Sets error flag Stops scanning unit Figure 2-4-1 2 - 4 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 25 Sets error flag Detects white mark area White mark area was detected normally? Sets error flag LED OFF Standby Figure 2-4-2 2 - 5 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 26 When the hardware setting, home position detection and border detection between black and white have completed, the scanner is on standby to wait for a command from the host computer. 2 - 6 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 27 Sets black calibration data to gate array Black calibration data was set to gate array normally? Sets error flag Figure 2-6-1 2 - 7 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 28 Composes white calibration data LED OFF Moves scanning unit to the home position Stores white calibration data as a file Standby Figure 2-6-2 2 - 8 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 29 600/300 dpi and the data is stored as a file in the host computer. For grayscale 600/300 dpi, only green data is processed. 2 - 9 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 30 LED OFF Returns scanning unit Scanning unit returned to the home position? Stops drive motor Image data was transmitted? Standby Figure 2-7 2 - 10 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 31: Optical System

    Sliding rod Contact image sensor Drive wire Drive motor Drive pulley Figure 2-8 2 - 11 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 32: Document Scanning Sequence

    Table 2-1 2 - 12 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 33: Contact Image Sensor

    The light reflected from the document is collected by the phototransistor array through the rod lens array and is read as an image signal. Reading position Light conductor section Rod lens array Phototransistor array Figure 2-10 2 - 13 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 34 Image signal Phototransistor Phototransistor Phototransistor Phototransistor array array array array Sensor drive Image circuit Rod lens array signal output Figure 2-12 2 - 14 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 35 When scanning a grayscale image, only green LED is ON and the image signal is processed. 5.16ms 5.16ms 5.16ms RLED GLED BLED Image signal output Figure 2-13 2 - 15 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 36: Drive Motor Control Circuit

    Host computer Control program Main PCB Drive motor J2-1 Motor Gate array driver Figure 2-14 2 - 16 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 37: Image Processing System

    1. Contact 2. A/D 3. Resolution 4. Calibration image sensor conversion conversion 5. Gamma 6. Packing To host computer correction Figure 2-15 2 - 17 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 38: Image Processing Functions

    Figure 2-18. Sampling point Moving direction Scanning unit Figure 2-17 Sampling point Moving direction Scanning unit Figure 2-18 2 - 18 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 39 Buffer RAM II (for reading) Output Fixed volume has been written Output Buffer RAM I (for reading) Input Buffer RAM II (for writing) Figure 2-20 2 - 19 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 40: Control System

    The scanner communicates with the host computer via USB interface in the gate array. gate array A0-7 Host computer Buffer D0-15 Control program Control signal Figure 2-21 2 - 20 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 41: Outline Of Usb

    Hub 3 Hub 6 Node Layer 4 Hub 4 Node Node Layer 5 Hub 5 Node Layer 6 Node Node Figure 2-22 2 - 21 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 42 : Lowest priority is given but larger amounts of data is sequentially transferred to a free bus. This scanner uses control transfer and bulk transfer. 2 - 22 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 43: Power Supply

    Main PCB Drive motor 5.5V step up circuit port 5.0V reference voltage Contact image sensor Gate Analog circuit array Digital circuit Figure 2-24 2 - 23 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 45 IV. ELECTRICAL SYSTEM ....3-11 A. Drive Unit ........ 3-5 A. USB Connector PCB ....3-11 B. Drive Wire ........ 3-8 B. Flat Cable ......3-13 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 47: I. Externals

    When cleaning, checking or repairing inside the scanner, remove the necessary covers using the following procedures. A. Covers q Document Cover w Document Glass Unit e Base Frame Figure 3-1 3 - 1 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 48 1) Pull the hinge unit of the document cover to the left, remove the right hinge unit, then warp the document cover to remove. q Document Cover w Hinge Figure 3-2 3 - 2 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 49 Figure 3-3 Note: Do not lift the hook part excessively since it is attached to the document glass with a double-sided tape. 3 - 3 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 50 Document Glass Unit Figure 3-5 Note: Take care not to smear the rear side of the document glass unit (especially the spacer sliding surface). 3 - 4 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 51: Drive System

    Wire Stopper w Seal Figure 3-6 Note: Do not damage or lose the seal to reuse it. 3 - 5 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 52 Connector J3 Figure 3-8 7) Remove the contact image sensor (refer to III-A-1). 8) Lift the drive unit to remove it. 3 - 6 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 53 1) Apply appropriate amount of grease to the positions marked with net in the figure 3-9. Figure 3-9 2) Locate the drive wire referring to II-B-2. 3 - 7 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 54: Drive Wire

    1) When the drive wire is twisted, untwist it to a natural condition. Otherwise a twisted drive wire can affect an image. 2) Locate the drive wire as shown in Figure 3-11. Figure 3-11 3 - 8 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 55: Optical System

    7) Hold up the front of the contact image sensor, slide it to the right, then lift it to remove. Figure 3-12 3 - 9 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 56: Contact Image Sensor

    Contact Image Sensor w Sensor Cable e Spring Figure 3-13 Note: Do not lose the spring under the contact image sensor. 3 - 10 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 57: Electrical System

    3) Insert flat-blade screw drivers into both sides of the USB connector PCB to push it forward. Figure 3-14 4) Disconnect the connector J2 to remove the USB connector PCB. q Connector J2 Figure 3-15 3 - 11 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 58 1) Make sure to contact the ground of the USB connector PCB with the sliding rod. q Ground w Sliding Rod Figure 3-16 3 - 12 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 59: Flat Cable

    7) Remove the USB connector PCB, and disconnect the connector J2. 8) Pull to remove the flat cable from the ferrite core. q Flat Cable w Ferrite Core Figure 3-17 3 - 13 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 60 Straighten the bent end of the flat cable on the driver unit side and pass it through the ferrite core. Figure 3-19 3 - 14 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 61 3) Re-bend the flat cable as shown in Figure 3-20 and connect it to the connector J3. Figure 3-20 q Connector J3 Figure 3-21 3 - 15 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 63: Periodical Replacement

    MAINTENANCE AND SERVICING PERIODICAL REPLACEMENT III. PERIODICAL SERVICING .... 4-1 PARTS ......... 4-1 SPECIAL TOOLS ......4-1 CONSUMABLE PARTS SOLVENTS AND LUBRICANTS ..4-1 DURABILITY ........ 4-1 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 65: Parts

    Usage / Remarks To be applied to the sliding part between the scanning Grease TKC-0955 unit and sliding rod. MOLYKOTE EM-50L Table 4-1 4 - 1 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 67: I. Introduction

    A. Initial Check ......5-1 IV. CANON SCANNER TEST ....5-5 B. Others ........5-1 A. Outline ........5-5 TROUBLESHOOTING ..... 5-2 B. How To Use Canon Scanner Test . A. Troubleshooting Image Defects ............ 5-5 ..........5-2 B. Troubleshooting Malfunctions ..

  • Page 69: Introduction

    Moving a scanner from a cold place to a warm place can cause condensation on the metal parts, resulting in a faulty operation. 5 - 1 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 70: Troubleshooting

    : Faulty contact image sensor Corrective action : Replace the contact image sensor. Cause 5 : Faulty main PCB Corrective action : Replace the drive unit. 5 - 2 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 71: Troubleshooting Malfunctions

    Corrective action : Securely connect the flat cable. Cause 2 : Faulty contact image sensor Corrective action : Replace the contact image sensor. 5 - 3 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 72: Location Of Electrical Parts

    USB Connector PCB w Main PCB e Contact Image Sensor r Home Position Sensor t Start Button y Drive Motor Figure 5-1 5 - 4 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 73: Outline

    CHAPTER 5 IV. CANON SCANNER TEST A. Outline Canon Scanner Test is utility software to check if faulty scanner operation is due to hardware or communication with a host computer. Windows : ScanTest.exe (English/Japanese is switched according to the language to be used in Windows.)
  • Page 74 3) Scanner Self Test Scanner self test is performed. 4) Calibration Scanner calibration is performed. 5) Scan Any image is scanned and saved as an image file in the same folder with the Canon Scanner Test. 5 - 6 COPYRIGHT 2000 CANON INC.
  • Page 75 Select "USB Information" from the "Function" menu to display as shown in Figure 5-2. Figure 5-2 · Vendor Description : Manufacturer name (Canon) of the scanner connected. · Device Description : Product name of the scanner connected. · Port Name : Port name of the scanner recognized by Windows.
  • Page 76 Select "Scanner Information" from the "Function" menu to display as shown in Figure 5-3 (Windows) or Figure 5-4 (Macintosh). Figure 5-3 Figure 5-4 · Vendor ID : Manufacturer name (Canon) of the scanner connected. · Product ID : Product name of the scanner connected. · ROM Version : Scanner controller version.
  • Page 77 Select "Scanner Self Test" from the "Function" menu to display a dialog as shown in Figure 5-5 (Windows) or Figure 5-6 (Macintosh). Figure 5-5 Figure 5-6 5 - 9 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 78 Click "OK" to perform Scanner Self Test. When it has completed normally, a dialog as shown in Figure 5-7 (Windows) or Figure 5-8 (Macintosh) is displayed. Figure 5-7 Figure 5-8 5 - 10 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 79 Select "Calibration" from the "Function" menu to display a dialog as shown in Figure 5-9 (Windows) or 5-10 (Macintosh). Figure 5-9 Figure 5-10 5 - 11 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 80 Click "OK" to perform Calibration. When it has completed normally, a dialog as shown in Figure 5-11 (Windows) or Figure 5-12 (Macintosh) is displayed. Figure 5-11 Figure 5-12 5 - 12 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 81 Select "Scan" from the "Function" menu to display a dialog as shown in Figure 5-13 (Windows) or Figure 5-14 (Macintosh). Figure 5-13 5 - 13 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 82 When "Save to TIFF file" is selected, the file of "img0.tif" is set up in the same folder with the Canon Scanner Test. File capacity is as follows.
  • Page 83 Causes and corrective actions for error messages which may occur during Canon Scanner Test are described below. 1) When Canon Scanner Test is started, "Unable to find USB scanner" is displayed. Cause 1 : Device driver for the scanner is not installed in the host computer.

  • Page 85: Figure U11 N656U

    CHAPTER 6 PARTS CATALOG FIGURE U11 N656U ......6-6 FIGURE U01 ACCESSORY .... 6-2 FIGURE U20 N1220U ......6-8 FIGURE U10 N650U ...... 6-4 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 87 (Brank Page) 6 - 1 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 88 ACCESSORY FIGURE U01 6 - 2 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 89 FIGURE & PART NUMBER DESCRIPTION SERIAL NUMBER/REMARKS KEY NO. U01-01 104-0138-0SP CABLE, USB 002-0827-0SP STAND ASSEMBLY 003-7204-0SP TAPE 6 - 3 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 90 N650U FIGURE U10 6 - 4 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 91 051-0506-000 HOOK 077-0632-000 SCREW 054-0231-000 PLATE, BUTTON 051-0505-000 BUTTON, FUNCTION 004-0393-000 USB I/F PCB ASSEMBLY 084-5505-0SP SEAL BASE FRAME 051-0574-000 LOCK, CARRIAGE 6 - 5 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 92 N656U FIGURE U11 6 - 6 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 93 051-0506-000 HOOK 077-0632-000 SCREW 054-0231-000 PLATE, BUTTON 051-0505-000 BUTTON, FUNCTION 004-0393-000 USB I/F PCB ASSEMBLY 084-5509-0SP SEAL BASE FRAME 051-0620-000 LOCK, CARRIAGE 6 - 7 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 94 N1220U FIGURE U20 6 - 8 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 95 051-0506-000 HOOK 077-0632-000 SCREWS 054-0231-0SP PLATE, BUTTON 051-0625-000 BUTTON, FUNCTION 004-0393-000 USB I/F PCB ASSEMBLY 084-5506-0SP SEAL BASE FRAME 051-0617-000 LOCK, CARRIAGE 6 - 9 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 97 (CanoScan N1220U) ...... A-2 (CanoScan N1220U) ...... A-7 III. MAIN PCB CIRCUIT DIAGRAM VI. USB CONNECTOR PCB CIRCUIT (CanoScan N650U/N656U) .... A-3 DIAGRAM (CanoScan N1220U) ... A-10 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 99: General Circuit Diagram

    APPENDIX I. GENERAL CIRCUIT DIAGRAM (CanoScan N650U/N656U) A - 1 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 100: General Circuit Diagram

    APPENDIX II. GENERAL CIRCUIT DIAGRAM (CanoScan N1220U) A - 2 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 101 DGND DGND DGND DGND LAMP DGND LAMP DGND LAMP VDRAM VDRAM TEST VDRAM VREF VREF VREF VBANDGAP VREG PHI1 PHI2 AGND AGND A - 3 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 102 APPENDIX (2/3) A - 4 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 103 APPENDIX (3/3) A - 5 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 104: Usb Connector Pcb Circuit

    APPENDIX IV. USB CONNECTOR PCB CIRCUIT DIAGRAM (CanoScan N650U/N656U) F.G. VBUS A - 6 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 105: Main Pcb Circuit Diagram

    DGND DGND DGND DGND LAMP DGND LAMP DGND LAMP VDRAM VDRAM TEST VDRAM VREF VREF VREF VBANDGAP VREG PHI1 PHI2 AGND AGND A - 7 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 106 APPENDIX (2/3) A - 8 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 107 APPENDIX (3/3) A - 9 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)

  • Page 108: Usb Connector Pcb Circuit

    APPENDIX VI. USB CONNECTOR PCB CIRCUIT DIAGRAM (CanoScan N1220U) F.G. VBUS A - 10 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 109 REVISION 0 (JUNE 2000) Prepared by NEW BUSINESS TECHNICAL SUPPORT DEPT. NEW BUSINESS QUALITY ASSURANCE DIV. QUALITY ENGINEERING CENTER CANON INC. 30-2, Shimomaruko 3-Chome, Ohta-ku, Tokyo 146-8501, Japan COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 110 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON) PRINTED IN JAPAN (IMPRIME AU JAPON) 0600MI0.04-1 CANON INC.

This manual is also suitable for:

Canoscan n650uCanoscan n656u

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