SERVICE MANUAL REVISION 0 JUNE 2000 COPYRIGHT 2000 CANON INC. JY8-1317-00Z CANOSCAN N650U/N656U/N1220U REV.
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.
LIST OF SERIAL NUMBER CanoScan N650U CanoScan N656U CanoScan N1220U COPYRIGHT 2000 CANON INC.
PREFACE This service manual contains the basic information necessary for servicing the N650U/N656U/ N1220U image scanners. The service manual consists of the following chapters.
CONTENTS CHAPTER 1 : GENERAL DESCRIPTIONS I. FEATURES ..................................... 1-1 A. Preface ..................................... 1-5 II. SPECIFICATIONS ........................... 1-2 B. Installation .............................. 1-6 III. EXTERIOR FEATURES .................. 1-4 C. Connecting to the Host Computer A. Front View ............................... 1-4 ................................................. 1-7 B. Rear View ................................. 1-4 D.
CHAPTER 4 : MAINTENANCE AND SERVICING I. II. PERIODICAL REPLACEMENT III. PERIODICAL SERVICING .............. 4-1 PARTS ............................................ 4-1 IV. SPECIAL TOOLS ............................ 4-1 CONSUMABLE PARTS DURABILITY .. V. SOLVENTS AND LUBRICANTS ...... 4-1 ................................................. 4-1 CHAPTER 5 : TROUBLESHOOTING I. II. INTRODUCTION ............................. 5-1 III. LOCATION OF ELECTRICAL PARTS .. A. Initial Check ....................
CHAPTER 1 GENERAL DESCRIPTIONS I. FEATURES ..................................... 1-1 A. Preface ..................................... 1-5 II. SPECIFICATIONS ........................... 1-2 B. Installation .............................. 1-6 III. EXTERIOR FEATURES .................. 1-4 C. Connecting to the Host Computer A. Front View ............................... 1-4 ................................................. 1-7 B. Rear View ................................. 1-4 D. Scanning a Document .
CHAPTER 1 I. FEATURES CanoScan N650U/N656U with 600 x 1200 dpi resolution, CanoScan N1220U with 1200 x 2400 dpi resolution are flatbed image scanners incorporating the following features. 1. High gradation and high image quality are achieved by employing a highly sensitive contact image sensor with LIDE (LED Indirect Exposure) technology for the scanning unit, and by reading each RGB color by 14 bits and outputting by 8 bits. 2. The scanner is a small size of 256.0(W) x 372.5(D) x 34.
CHAPTER 1 II. SPECIFICATIONS CanoScan N650U/N656U MAIN UNIT · Type : Flat bed image scanner READING UNIT · Image sensor · Light source · Max. document size · Image output · Resolution · Scan time : : : : : : INTERFACE · Interface : USB 1.1 (B plug) x 1 OTHERS · Operating environment · Power consumption · Dimensions · Weight 1-2 COPYRIGHT 2000 CANON INC.
CHAPTER 1 CanoScan N1220U MAIN UNIT · Type : Flat bed image scanner READING UNIT · Image sensor · Light source · Max. document size · Image output · Resolution · Scan time : : : : : : INTERFACE · Interface : USB 1.1 (B plug) x 1 OTHERS · Operating environment · Power consumption · Dimensions · Weight 10208 pixels contact image sensor LED indirect exposure (RGB each) A4 or Letter (216 x 297 mm) RGB 8 bits per channel (input 14 bits) 1200 x 2400 dpi 449 sec. (color, A4, 1200 dpi) 149 sec.
CHAPTER 1 III. EXTERIOR FEATURES A. Front View 1 A4 2 LTR B5 3 q w e r t Document Cover Document Glass Alignment Mark Start Button Carriage Lock 4 B5 A4 LTR 5 Figure 1-1 B. Rear View q USB Port 1 Figure 1-2 1-4 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 1 IV. INSTALLATION A. Preface The following installation conditions are required. 1. Ambient temperature should be between 5°C and 35°C, and humidity between 10% and 90%. Avoid locations near water faucets, boilers, humidifiers, or refrigerators. 2. Avoid locations subject to open flame, dust, or direct sunlight. If it is installed near a window, hang a curtain to block direct sunlight. 3. The room should be well ventilated. 4. Install on a sturdy and level desk, etc. 5.
CHAPTER 1 B. Installation 1. Unlocking the carriage lock The scanner is shipped with the scanning unit locked by the carriage lock to prevent damage during transport. Unlock the scanning unit to use the scanner. 1) Turn the scanner over. Figure 1-3 2) Push the carriage lock to the unlock mark position. 1 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.
CHAPTER 1 C. Connecting to the Host Computer The scanner is connected to the USB port on the host computer using a supplied USB cable. Refer to "Getting Started" for details. For connecting/disconnecting the host computer's cables, refer to the manual supplied with the host computer. 1) Connect the flat connector (A plug) of the USB cable to the USB port on the host computer. 2) Connect the square connector (B plug) of the USB cable to the USB port on the scanner.
CHAPTER 1 D. Scanning a Document 1) Open the document cover. 2) Place a document on the document glass, orienting the image face down and aligning its top edge with the alignment mark. A4 LTR B5 1 34 12 B5 A4 LTR q Alignment Mark Figure 1-6 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.
CHAPTER 1 V. CUSTOMER'S DAILY MAINTENANCE Dirt on a document glass or a document cover may cause an unclear image or lines on an image. Clean the document glass and the document cover using the following procedures. 1) Disconnect the USB cable from the scanner. 2) Wipe the dirt or dust off the document cover with a soft clean cloth dampened with water and well wrung, then thoroughly wipe water off with a dry cloth. 3) Wipe the document glass with a dry cloth caring not to leave wiper marks.
CHAPTER 2 OPERATION AND TIMING I. II. D. Drive Motor Control Circuit BASIC OPERATION ........................ 2-1 A. Functions ................................ 2-1 ............................................... 2-16 B. Outline of Electrical System ... 2-2 III. IMAGE PROCESSING SYSTEM .... 2-17 C. Main PCB Input and Output ... 2-3 A. Outline .................................. 2-17 D. Basic Sequences .................... 2-4 B. Image Processing Functions ....... OPTICAL SYSTEM ...................
CHAPTER 2 I. BASIC OPERATION A. Functions 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 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 2 B. Outline of Electrical System Figure 2-2 shows the outline of electrical system. CPU is not equipped in the main PCB. The device driver installed in the host computer includes a control program, which functions as CPU. Image signals read by the contact image sensor are converted into digital data by the A/D converter in the gate array. The converted image data are image-processed by the gate array, then output to the host computer via USB port.
CHAPTER 2 C.
CHAPTER 2 D. Basic Sequences The basic sequences of the scanner are divided into power ON sequence, calibration sequence, and document scanning sequence. 1.
CHAPTER 2 1 Moves scanning unit forward by x pulses Scanning unit is off the home position? NO Sets error flag YES Returns scanning unit by x pulses LED ON Adjusts LED ON period for white mark area detection LED ON period was adjusted normally? NO Sets error flag YES Detects white mark area White mark area was detected normally? YES NO Sets error flag LED OFF Standby Figure 2-4-2 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 2 When the scanner is powered ON, it performs hardware setting, home position detection, and border detection between black and white according to the flowchart shown in Figure 2-4. 1) Hardware setting Gate array and buffer RAM in the main PCB are checked if they function normally. 2) Home position detection/Border detection between black and white The scanner detects the home position by the home position sensor by using a black mark area and white mark area in the rear of the document glass.
CHAPTER 2 2. Calibration sequence Standby Corrects black level Black level was corrected normally? NO Sets error flag YES Obtains 32 lines of data Data was obtained normally? NO YES Sets error flag Composes black calibration data Sets black calibration data to gate array Black calibration data was set to gate array normally? YES NO Sets error flag 2 Figure 2-6-1 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 2 2 Moves scanning unit to white mark area Scanning unit moved to white mark area normally? NO Sets error flag YES Adjusts LED ON period LED ON period was adjusted normally? NO Sets error flag YES LED ON Obtains 16 lines of data Data was obtained normally? YES NO Sets error flag 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.
CHAPTER 2 When the host computer sends a calibration command, the scanner performs the calibration. Calibration is to compose black calibration data and white calibration data by reading the black mark and white mark in the rear of the document glass as color references for the proper color reading. 1) Black calibration data composition Black calibration data is composed by reading and averaging 32 lines of output from the scanning unit with the LED turned OFF.
CHAPTER 2 3. Document scanning sequence Standby LED ON Moves scanning unit to the vertical scan start position Starts document scan Scan cancellation is required? YES NO NO All document lines were scanned? YES LED OFF Returns scanning unit NO Scanning unit returned to the home position? YES Stops drive motor Image data was transmitted? NO YES Standby Figure 2-7 2 - 10 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 2 II. OPTICAL SYSTEM A. Outline The optical system includes the functions of moving the scanning unit by the drive motor, exposing a document by the LED, and collecting the reflected light to the phototransistor array. Contact image sensor is adopted for the scanning unit, which is a module combined with the LED for light exposing, the lens array for light collecting, and the phototransistor array for light receiving to read per line.
CHAPTER 2 B. Document Scanning Sequence SEQUENCE STBY HPDET STUP SCFW SCAN SCRTN STBY Scan command is received 8 sec. Times required (s) Drive motor (M1) LED ON signal Interface signal (Data 1-8) Scanning unit position Home position Border between black and white Document scan area (A4, 1200dpi, 100%, 24bit color) : Reverse Figure 2-9 Sequence Purpose After a power on sequence is completed until the scanner receives a scan command from the host computer.
CHAPTER 2 C. Contact Image Sensor 1. Structure of the contact image sensor Figure 2-10 shows an overview of the contact image sensor with LIDE technology. The contact image sensor has the LED for exposing a document on the end of glass part called the light conductor section. When the LED is turned ON, the LED light is supplied to the light conductor section which exposes a document. That is, the LED light indirectly exposes a document through the light conductor section.
CHAPTER 2 Figure 2-11 shows a cross-sectional view of the contact image sensor.
CHAPTER 2 2. Image scanning operation When the contact image sensor moves to the image scanning position, the control program turns the SP signal to "L" three times per line to light the LED in order of red, green and blue, and reads the image signal corresponding to each red, green and blue lights. The reading cycle of 1 line is 15.48 msec. When scanning a grayscale image, only green LED is ON and the image signal is processed. 5.16ms 5.16ms 5.
CHAPTER 2 D. Drive Motor Control Circuit Figure 2-14 shows a block diagram of the drive motor control circuit. The control program analyzes each command sent from the host computer and sends a command to generate motor clock to the gate array. The gate array generates the four phase motor drive pulse signals (MA+, MA-, MB+, MB-), which are sent to the drive motor via the motor driver.
CHAPTER 2 III. IMAGE PROCESSING SYSTEM A. Outline Figure 2-15 shows a block diagram of the main functions of the image processing system. The image processing system converts the signals read by the contact image sensor into digital data, performs various image processing, and outputs the data to the host computer via USB port. 1. Contact image sensor 5. Gamma correction 2. A/D conversion 6. Packing 3. Resolution conversion 4. Calibration To host computer Figure 2-15 COPYRIGHT 2000 CANON INC.
CHAPTER 2 B. Image Processing Functions 1. Contact image sensor The gate array outputs clock signals based on the command from the control program to the contact image sensor. The contact image sensor lights the LED in order of red, green and blue according to the clock signals, then outputs 1 line of image signal proportional to the light intensity received by the phototransistor. 2.
CHAPTER 2 When decreasing the resolution, the scanning unit moves at a fast speed to read less lines. Sampling point Moving direction Scanning unit Figure 2-19 4. Calibration When the contact image sensor reads a document of an even density, the image signal corresponding to each pixel is not uniform for the following reasons. 1) Light intensity of LED is not uniform. 2) There is variation in the sensitivity of the phototransistors.
CHAPTER 2 IV. CONTROL SYSTEM A. Outline The control system consists of the gate array, buffer RAM (4Mbit), and ROM (2Mbit). The CPU is not equipped with the scanner. The control program in the device driver installed on the host computer controls the scanner operation by setting a comand directly to the gate array register. Buffer RAM is used as a work memory for image processing. The scanner communicates with the host computer via USB interface in the gate array.
CHAPTER 2 B. Outline of USB The scanner is connected to the host computer via USB. USB (Universal Serial Bus) is the next generation general-purpose input-output interface to connect the computer peripheral devices. 1. Features of USB 1) Connects peripheral devices to a computer. 2) Connects up to 127 devices by a tree structure. 3) Connects by 12 Mbps of "full speed mode" or 1.5 Mbps of "low speed mode". This scanner is conforming to "full speed mode".
CHAPTER 2 USB connector has A plug for connecting to upper stream and B plug for connecting to lower stream. A Plug B Plug Figure 2-23 3. USB Data Transfer USB data is transferred in the 1) Token packet : Used 2) Handshake packet : Used 3) Data packet : Used 4) Special packet : Used following four data structures called "packet".
CHAPTER 2 V. POWER SUPPLY The scanner draws its power +5V from USB interface. +5V is used for the digital circuit in the main PCB. Power supply to the analog circuit is ON/OFF controlled by the gate array. Drive motor, contact image sensor, and analog circuit are supplied with power as necessary. 5.5V step up circuit in the main PCB is used for the analog circuit and for driving the contact image sensor. Host comuter Main PCB Drive motor USB port +5V 5.5V step up circuit LED 5.
CHAPTER 3 MECHANICAL SYSTEM I. II. EXTERNALS .................................. 3-1 III. OPTICAL SYSTEM ......................... 3-9 A. Covers ...................................... 3-1 A. Contact Image Sensor ............. 3-9 DRIVE SYSTEM .............................. 3-5 IV. ELECTRICAL SYSTEM ................ 3-11 A. Drive Unit ................................ 3-5 A. USB Connector PCB .............. 3-11 B. Drive Wire ................................ 3-8 B. Flat Cable ......................
CHAPTER 3 I. EXTERNALS When cleaning, checking or repairing inside the scanner, remove the necessary covers using the following procedures. A. Covers 1 A4 LTR 2 B5 3 B5 A4 LTR q Document Cover w Document Glass Unit e Base Frame Figure 3-1 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 3 1. Removing the document cover 1) Pull the hinge unit of the document cover to the left, remove the right hinge unit, then warp the document cover to remove. 3 1 1 A4 LTR B5 2 2 B5 A4 LTR q Document Cover w Hinge Figure 3-2 3-2 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 3 2. Removing the document glass unit 1) Remove the document cover. 2) Unhook the hook in the end of the document glass unit, then lift the hook part. 1 LTR B5 2 A4 B5 A4 LTR q End Hook w Document Glass Unit Figure 3-3 Note: Do not lift the hook part excessively since it is attached to the document glass with a double-sided tape. COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 3 3) Unhook the hook in the front of the document glass unit, then slide the document glass unit backward. 2 LTR B5 A4 B5 A4 LTR 1 q Front Hook w Document Glass Unit Figure 3-4 4) Lift the front of the document glass unit, then pull forward to remove it. LTR 1 B5 A4 B5 A4 LTR q 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.
CHAPTER 3 II. DRIVE SYSTEM A. Drive Unit 1. Removing the drive unit 1) Remove the document cover. 2) Remove the document glass unit. 3) Remove the seal from the back of the scanner, push the wire stopper backward to remove it from the base frame through the left hole. 1 2 q Wire Stopper w Seal Figure 3-6 Note: Do not damage or lose the seal to reuse it. COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 3 4) Remove two spacers on both ends of the contact image sensor. 1 q Spacer Figure 3-7 5) Lift the drive unit end part, then remove the drive wire from the gear. 6) Move the drive unit to the center, then disconnect the connector J3. 1 q 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.
CHAPTER 3 2. Precautions when attaching the drive unit 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. COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 3 B. Drive Wire 1. Removing the drive wire 1) Remove the document cover. 2) Remove the document glass unit. 3) Remove the drive unit. 4) Remove the wire spring to remove the drive wire. 1 q Drive Wire Figure 3-10 2. Precautions when attaching the 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.
CHAPTER 3 III. OPTICAL SYSTEM A. Contact Image Sensor 1. Removing the contact image sensor Note: Take care not to touch the phototransistor of the contact image sensor. 1) Remove the document cover. 2) Remove the document glass unit. 3) Remove the seal from the back of the scanner unit, push the wire stopper backward to remove it from the base frame through the left hole as shown in Figure 3-6. 4) Remove two spacers on both ends of the contact image sensor.
CHAPTER 3 8) Remove the sensor cable from the ontact image sonsor, then remove the contact image sensor. 1 2 3 q 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.
CHAPTER 3 IV. ELECTRICAL SYSTEM A. USB Connector PCB 1. Removing the USB connector PCB 1) Remove the document cover. 2) Remove the document glass unit. 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. 1 q Connector J2 Figure 3-15 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 3 2. Precautions when attaching the USB connector PCB 1) Make sure to contact the ground of the USB connector PCB with the sliding rod. 1 2 q Ground w Sliding Rod Figure 3-16 3 - 12 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 3 B. Flat Cable 1. Removing the flat cable Note: Do not bend or deform the flat cable when removing the flat cable. 1) Remove the document cover. 2) Remove the document glass unit. 3) Remove the seal from the back of the scanner unit, push the wire stopper backward to remove it from the base frame through the left hole as shown in Figure 3-6. 4) Remove two spacers on both ends of the contact image sensor. 5) Lift the drive unit end part, then remove the drive wire from the gear.
CHAPTER 3 2. Precautions when atttaching the flat cable 1) Take care not to bend or deform the flat cable. 2) Locate the flat cable as follows. a. The flat cable on the USB connector PCB side is attached with a double-sided tape. Align the bend in the flat cable with the left end corner of the base frame. 1 q Bend Figure 3-18 b. 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.
CHAPTER 3 3) Re-bend the flat cable as shown in Figure 3-20 and connect it to the connector J3. 8mm Figure 3-20 1 q Connector J3 Figure 3-21 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 4 MAINTENANCE AND SERVICING I. II. PERIODICAL REPLACEMENT III. PERIODICAL SERVICING ............ 4-1 PARTS ......................................... 4-1 IV. SPECIAL TOOLS ......................... 4-1 CONSUMABLE PARTS V. SOLVENTS AND LUBRICANTS .... 4-1 DURABILITY ................................ 4-1 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 4 I. PERIODICAL REPLACEMENT PARTS None II. CONSUMABLE PARTS DURABILITY None III. PERIODICAL SERVICING None IV. SPECIAL TOOLS None V. SOLVENTS AND LUBRICANTS Lubricants used for disassembly and assembly of the scanner. No. Name Tool No. 1 Grease TKC-0955 Usage / Remarks To be applied to the sliding part between the scanning unit and sliding rod. MOLYKOTE EM-50L Table 4-1 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 5 TROUBLESHOOTING I. II. INTRODUCTION ............................. 5-1 III. LOCATION OF ELECTRICAL PARTS .. A. Initial Check ............................ 5-1 ................................................. 5-4 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 . ...............
CHAPTER 5 I. INTRODUCTION A. Initial Check Check if the operating environment conforms to the following conditions. 1. Line voltage is within ±10% of the rated value. 2. Ambient temperature and humidity conform to the operating environment. (Refer to CHAPTER 1, II. SPECIFICATIONS) 3. The scanner is not installed near a water faucet, boiler, humidifier, open flame, or in dusty place. 4. The scanner is not exposed to direct sunlight.
CHAPTER 5 II. TROUBLESHOOTING Causes and corrective actions for possible image defects and malfunctions during operation are described below. A. Troubleshooting Image Defects 1. Image not output Cause 1 : Faulty connection of the USB cable Corrective action : Securely connect the USB cable. Cause 2 : Faulty contact image sensor Corrective action : Replace the contact image sensor. Cause 3 : Faulty main PCB Corrective action : Replace the drive unit. 2.
CHAPTER 5 B. Troubleshooting Malfunctions 1. Host computer not detecting the scanner Cause 1 : Faulty installation of the device driver Corrective action : Uninstall the device driver and reinstall it. Cause 2 : Faulty connection of the USB cable Corrective action : Securely connect the USB cable to the scanner and host computer. Cause 3 : Faulty main PCB Corrective action : Replace the drive unit. 2. Scanner not operating Cause 1 : Carriage lock is locked. Corrective action : Unlock the carriage lock.
CHAPTER 5 III. LOCATION OF ELECTRICAL PARTS 1 2 3 4 5 6 q w e r t y USB Connector PCB Main PCB Contact Image Sensor Home Position Sensor Start Button Drive Motor Figure 5-1 5-4 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
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.) Macintosh : ScantestHMe B. How To Use Canon Scanner Test 1. Operating environment Windows platform 1) CanoScan N650U/N656U/N1220U 2) PC/AT Compatibles (Pentium or faster is recommended.
CHAPTER 5 2. Functions Canon Scanner Test has the following functions. 1) USB Information (Windows only) Scanner information recognized by Windows. 2) Scanner Information Product ID, ROM version, etc. are shown when the scanner is properly communicated with the host computer. 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.
CHAPTER 5 3. Functions descriptions 1) USB Information (Windows only) Select "USB Information" from the "Function" menu to display as shown in Figure 5-2. Figure 5-2 · · · · Vendor Description Device Description Port Name Local Name COPYRIGHT 2000 CANON INC. : : : : Manufacturer name (Canon) of the scanner connected. Product name of the scanner connected. Port name of the scanner recognized by Windows. Product name of the scanner connected. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 5 2) Scanner Information 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 · Product ID · ROM Version 5-8 : Manufacturer name (Canon) of the scanner connected. : Product name of the scanner connected. : Scanner controller version. COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 5 3) Scanner Self Test 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 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 5 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.
CHAPTER 5 4) Calibration 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 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 5 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.
CHAPTER 5 5) Scan 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 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
CHAPTER 5 Figure 5-14 * Scan count * Resolution * Image : Specify the number of scan. : Select a resolution for the image to be scanned. : Select a processing method of the scanned image. When "Read in memory (no file)" is selected, scanned image is read into the memory, then abandoned after readout. 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. 75 dpi : Approx. 1.6 MByte 150 dpi : Approx. 6.
CHAPTER 5 4. Error Message 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. Corrective action : Install the device driver. Cause 2 : Scanner is not detected by the host computer. Corrective action : Properly detect the scanner by the host computer.
CHAPTER 6 PARTS CATALOG FIGURE U01 ACCESSORY ............ 6-2 FIGURE U11 N656U ............................. 6-6 FIGURE U10 N650U ...................... 6-4 FIGURE U20 N1220U ........................... 6-8 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
(Brank Page) COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
FIGURE U01 ACCESSORY 1 2 3 6-2 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
R A N K Q' T Y FIGURE & KEY NO. PART NUMBER U01-01 104-0138-0SP 1 CABLE, USB 02 002-0827-0SP 1 STAND ASSEMBLY 03 003-7204-0SP 1 TAPE COPYRIGHT 2000 CANON INC. DESCRIPTION SERIAL NUMBER/REMARKS CANOSCAN N650U/N656U/N1220U REV.
N650U FIGURE U10 1 LTR B5 2 3 4 8 B 5 5 A4 LTR A4 6 7 9 10 15 11 16 12 13 14 17 18 6-4 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
R A N K Q' T Y FIGURE & KEY NO.
N656U FIGURE U11 1 LTR B5 2 3 4 8 B5 A4 LTR 5 A4 6 7 9 10 15 11 16 12 13 14 17 18 6-6 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
R A N K Q' T Y FIGURE & KEY NO.
N1220U FIGURE U20 1 LTR B5 2 3 4 8 B5 A4 LTR 5 A4 6 7 9 10 15 11 16 12 13 14 17 18 6-8 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
R A N K Q' T Y FIGURE & KEY NO.
APPENDIX I. GENERAL CIRCUIT DIAGRAM IV. USB CONNECTOR PCB CIRCUIT DIAGRAM (CanoScan N650U/N656U) . (CanoScan N650U/656U) ............... A-1 II. ................................................ A-6 GENERAL CIRCUIT DIAGRAM (CanoScan N1220U) ...................... A-2 III. MAIN PCB CIRCUIT DIAGRAM (CanoScan N650U/N656U) ............ A-3 V. MAIN PCB CIRCUIT DIAGRAM (CanoScan N1220U) ...................... A-7 VI. USB CONNECTOR PCB CIRCUIT DIAGRAM (CanoScan N1220U) ...
COPYRIGHT 2000 CANON INC. 1 2 3 4 5 6 7 8 9 10 11 12 Contact Image Sensor CS1 J3 1 2 3 4 5 6 7 8 9 10 11 12 VOB MISC6 GND VCIS VREF TR PHI1 VLED BEN GEN REN GND Home Position Sensor Q4 4 3 2 Drive Motor M1 S1 J2 1 Start Button PAPB+ PBPA+ Main PCB J1 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 GND +5V GND DD+ GND +5V +5V 1 2 3 4 USB Connector PCB J2 J1 VBUS DD+ GND APPENDIX I. GENERAL CIRCUIT DIAGRAM (CanoScan N650U/N656U) CANOSCAN N650U/N656U/N1220U REV.
A-2 COPYRIGHT 2000 CANON INC. 1 2 3 4 5 6 7 8 9 10 11 12 Contact Image Sensor CS1 J3 1 2 3 4 5 6 7 8 9 10 11 12 VOB MISC6 GND VCIS VREF TR PHI1 VLED BEN GEN REN GND Home Position Sensor Q4 4 3 2 Drive Motor M1 S1 J2 1 Start Button PAPB+ PBPA+ Main PCB J1 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 GND +5V GND DD+ GND +5V +5V 1 2 3 4 USB Connector PCB J2 J1 VBUS DD+ GND APPENDIX II. GENERAL CIRCUIT DIAGRAM (CanoScan N1220U) CANOSCAN N650U/N656U/N1220U REV.
1 2 3 4 1 2 3 4 A1 A2 A3 A4 A5 A6 A7 A8 A0 RA2 RA1 R1 1 2 3 4 RA3 8 7 6 5 8 7 6 5 (A0 A9) 8 7 6 5 (DGND) C1 +5VD 13 27 14 29 28 16 17 18 19 22 23 24 25 26 WE OE RAS LCAS HCAS A0 A1 A2 A3 A4 A5 A6 A7 A8 PHI1 1 6 20 I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 I/O8 I/O9 I/O10 I/O11 I/O12 I/O13 I/O14 I/O15 NC NC U3 2 3 4 5 7 8 9 10 31 32 33 34 36 37 38 39 11 12 15 30 C91 A0 A1 A2 A3 A4 A5 A6 A7 A8 V 35 37 36 34 40 42 46 48 49 47 45 41 39 38 14 18 20 22 24 26 28 32 33 29 27 25 23 21 1
MISC5 +5VD 2 Q16 C42 VPI 4 U1 S1 G1 S2 G2 D1 D1 D2 D2 C22 R29 R27 R22 R20 8 7 6 5 L2 8 7 6 5 R24 D/C IPK/2 VIN C/I U4 R30 B B E E G E B Q5 Q6 S D Q7 S/C OUT T/C GND E CQ9 R34 E CQ8 R33 C C MISC5 1 2 3 4 B B 1 2 3 4 R31 R40 C44 Q2 + V C40 D1 R2 R7 HPSEN + V55 D+ D- A C38 VPI C13 R28 C41 C23 R26 2 1 2 3 C12 Q1 R25 VPI VOUT VCC GND CTL Q3 VIN R4 R5 2 OUT 3 C 4 5 VAG + Q4 C39 C47 R35 R16 VREG 2 1 1 3 3 4 MISC4 +5VD 5
TR PHI1 OR Q17A VCIS VCIS OR Q17B R77 R73 R75 R69 C26 VCIS R39 R38 VCIS VCIS VCIS C25 C43 13 12 9 10 6 5 2 3 V55 VCC - + VEE 11 4 - + 11 - + - + R83 14 U12D VCC VEE VCC VEE 4 11 VCC VEE 4 11 COPYRIGHT 2000 CANON INC.
APPENDIX IV. USB CONNECTOR PCB CIRCUIT DIAGRAM (CanoScan N650U/N656U) J2 8 7 6 5 4 3 2 1 C1 D1 F.G. C3 D2 J1 R1 1 2 3 4 4 1 2 3 R2 D4 VBUS DD+ GND D3 C2 C4 L1 A-6 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
1 2 3 4 1 2 3 4 A1 A2 A3 A4 A5 A6 A7 A8 A0 RA2 RA1 R1 1 2 3 4 RA3 8 7 6 5 8 7 6 5 (A0 A9) 8 7 6 5 (DGND) C1 +5VD 13 27 14 29 28 16 17 18 19 22 23 24 25 26 WE OE RAS LCAS HCAS A0 A1 A2 A3 A4 A5 A6 A7 A8 PHI1 1 6 20 NC NC NC NC I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 I/O8 I/O9 I/O10 I/O11 I/O12 I/O13 I/O14 I/O15 VCC VCC VCC U3 2 3 4 5 7 8 9 10 31 32 33 34 36 37 38 39 11 12 15 30 C91 A0 A1 A2 A3 A4 A5 A6 A7 A8 V 35 37 36 34 40 42 46 48 49 47 45 41 39 38 14 18 20 22 24 26 28 32
MISC5 +5VD 2 Q16 C42 VPI 4 U1 S1 G1 S2 G2 D1 D1 D2 D2 C22 R29 R27 R22 R20 8 7 6 5 L2 8 7 6 5 R24 D/C IPK/2 VIN C/I U4 R30 B B E E G E B Q5 Q6 S D Q7 S/C OUT T/C GND E CQ9 R34 E CQ8 R33 C C MISC5 1 2 3 4 B B 1 2 3 4 R31 R40 C44 Q2 + V C40 D1 R2 R7 HPSEN + V55 D+ D- A C38 VPI C13 R28 C41 C23 R26 2 1 2 3 C12 Q1 R25 VPI VOUT VCC GND CTL Q3 VIN R4 R5 2 OUT 3 C 4 5 VAG + Q4 C39 C47 R35 R16 VREG 2 1 1 3 3 4 MISC4 +5VD 5 V
TR PHI1 OR Q17A VCIS VCIS OR Q17B R77 R73 R75 R69 C26 VCIS R39 R38 VCIS VCIS VCIS C25 C43 13 12 9 10 6 5 2 3 V55 VCC - + VEE 11 4 - + 11 - + - + R83 14 U12D VCC VEE VCC VEE 4 11 VCC VEE 4 11 COPYRIGHT 2000 CANON INC.
APPENDIX VI. USB CONNECTOR PCB CIRCUIT DIAGRAM (CanoScan N1220U) J2 8 7 6 5 4 3 2 1 C1 D1 F.G. C3 D2 J1 R1 1 2 3 4 4 1 2 3 R2 D4 VBUS DD+ GND D3 C2 C4 L1 A - 10 COPYRIGHT 2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.
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.
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.
