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Canon Color Image Reader - L1 Service Manual

Color image reader
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REVISION 1
Color Image Reader - L1
Service Manual
Product Outline
Technology
Periodic Servicing
Parts Replacing and Cleaning
Adjustments
Installation
Appendix
1
2
3
4
5
6

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Table of Contents
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Summary of Contents for Canon Color Image Reader - L1

  • Page 1 REVISION 1 Color Image Reader - L1 Service Manual Product Outline Technology Periodic Servicing Parts Replacing and Cleaning Adjustments Installation Appendix...
  • Page 2 This manual is copyrighted with all rights reserved. Under the copyright laws, this manual may changes in the contents of this manual over a long or short period, Canon will issue a new not be copied, reproduced or translated into another language, in whole or in part, without the edition of this manual.
  • Page 3 Explanation of Symols The following rules apply throughout this Service Manual: The following symbols are used throughout this Service Manual. Each chapter contains sections explaining the purpose of specific functions and the relationship between electrical and mechanical systems with reference to the timing of Symols Explanation Symols...
  • Page 4 BLANK PAGE...

  • Page 5: Table Of Contents

    Color Image Reader - L1 Contents Color Image Reader - L1 Periodic Servicing Periodic Servicing List -------------------------------------------------------3-1 Product Outline Parts Replacing and Cleaning Characteristic ------------------------------------------------------------------1-1 Parts List ------------------------------------------------------------------------4-1 High speed 2-side scan-at one time (DADF) ------------------------------- 1-1 High capacity pickup tray (DADF) --------------------------------------------- 1-1...
  • Page 6 Installation Color Image Reader - L1 ----------------------------------------------------6-1 Point to Note Aout Installation ------------------------------------------------- 6-1 Checking the contents ------------------------------------------------------------ 6-2 Turning Off the Host Machine --------------------------------------------------- 6-3 Installation procedure ------------------------------------------------------------- 6-4 Connection of the equipment -------------------------------------------------- 6-11 Install the external cover --------------------------------------------------------6-19...

  • Page 7: Product Outline

    H11.0 Product Outline Product Outline Characteristic Specifi cation Name of each area Option confi guration H11.0 Product Outline...

  • Page 8: High Speed 2-Side Scan-At One Time (Dadf)

    H11.0 Product Outline Characteristic Specifi cation Following is a specifi cation list of the host machine. High speed 2-side scan-at one time (DADF) Item Specifi cation/function Remarks • Maximum 200 ipm (2-side, B/W, 300 dpi). Exposure system High-brightness white LED + refl ection •...

  • Page 9: Name Of Each Area

    H11.0 Product Outline Name of each area Option confi guration Followings are the options for the host machine. External view Copyboard glass PCB cover Right cover Reader heater Rear cover Front cover Left cover Glass retainer Stream read glass Sectional view Stream reading glass Copyboard glass Scanner unit...
  • Page 10 BLANK PAGE...

  • Page 11: Technology

    Technology Technology Basic confi guration Controls Technology...
  • Page 12 Technology Basic confi guration Parts confi guration Followings are the positions and names of main confi guration parts. Function confi guration Scanner motor (M1) Reader controller PCB Following is the list of functions. (PCB1) DADF Reader unit Scanner unit open/closed Original size sensor 2 sensor 2 (CF2)

  • Page 13: Overview Of Power Circuit

    Technology Overview of power circuit Reader controller PCB Control of the host machine is conducted at the reader controller PCB. Following is the function confi guration of reader controller PCB. Reader controller PCB also controls the DADF driver PCB and DADF scanner unit. Jack No Role Following is the relations of each electrical part.

  • Page 14: Scanner Unit

    Technology Scanner unit CMOS line sensor Original exposure and scanning are performed by the integrated scanner unit of LED, mirror, Black & white (B / W) line lens and CMOS line sensor. Red (R) line Light emitted from LED is refl ected by the original and reaches the CMOS line sensor through Greeen (G) line the 3 folding mirrors and 4 free curvature mirrors.

  • Page 15: Basic Sequence

    Technology Basic sequence At start key ON (Book mode/1 sheet original) Original Stream Shading Image At power ON Start Home Shading size Stop reading start leading position position position detection position position position edge position Original Stream Shading Image Start Home Shading size...
  • Page 16 Technology At start key ON (DADF mode/1 sheet original) Original Stream Shading Image Home Shading size Stop reading start leading position position detection position position position edge position 1. HP positioning 2. move to shift shading start position 3. move to shift shading 4.

  • Page 17: Controls

    Technology Controls Scanner motor control Following is the control system confi guration related with the scanner motor control. Motor driver on the reader controller PCB controls the drive/stop, direction and speed of Scanner drive control scanner motor rotation in accordance with the signals from CPU. Confi...

  • Page 18: Original Size Detection

    Technology Original size detection Following shows the scanning speed in each mode. Function Mode Scan speed Original size is identifi ed based on the result combinations of refl ection light at the specifi c B&W 468 mm/sec Copy / SEND Full color 203 mm/sec point on the refl...
  • Page 19 Technology Original size detection position In main scanning direction, the machine moves the scanner unit to the following position in reference to the original position and measures the CMOS level of each detection position. In sub scanning direction, original size is identifi ed by the following sensors. 0 mm 311 mm 0 m m...
  • Page 20 Technology Following is the combination of detection result and original size. a. 2 point original detection at each detection position A/B: Original presence/absence detection result of 2 points (Refer to [2 point original detec- In main scanning direction, the machine determines whether the original is present or not tion at each detection position].).
  • Page 21 Technology 2-10 Detection operation b. Priority on the front original presence As a result of main scanning direction measurement, if the original absence is detected at Following is the overview of operation for original size detection (AB type). the rear while the original presence is detected at the front, a priority is given to the result of 1) Wait status original presence at the front.
  • Page 22 Technology 2-11 3) Close DADF (The angle of DADF is from 5 to 25 degree). 4) DADF fully closed (the angle of DADF is 5 degree or less). 3-1) The external light detection operation is performed. Since the area covered by an The machine monitors the changes of output level of each sensor for 3 sec from when the original will be blocked from external light, the machine will assume the absence of an DADF open sensor 1 detects the [Close] status.

  • Page 23: Dust Detection Control

    Technology 2-12 Dust detection control White plate dust detection control In this machine, the fans cool down the inside of the DADF to prevent the overheating at Overview stream reading operation. As a result, dust in the DADF may stick to the white plate and it The timing of dust detection is as follows.
  • Page 24 Technology 2-13 Stream reading glass dust detection control The machine checks the presence/absent of dust on the stream reading glass and the DADF platen roller 1. It then changes the point of reading or executes image correction (refer to [dust detection correction control (continuous lines)]) depending on the result of detection to avoid the reproduction of dust particles in its output images.
  • Page 25 Technology 2-14 Dust detection correction control (continuous lines) The machine detects and corrects the lines due to the detected dust between sheets. This correction targets the lines due to the detected dust by the stream reading glass dust detection. Refer to the dust detection correction control (non-continuous lines) for the difference with non-continuous lines.
  • Page 26 Technology 2-15 Dust detection correction control (non-continuous lines) MEMO:Additional function mode (removing the faulty lines) The machine detects and corrects the lines due to the dust other than dust between sheets. At the original reading, you can specify whether to execute the removing function or not The dust on the original is not detected before the leading edge of original.

  • Page 27: Magnification Change

    Technology 2-16 Magnifi cation change Image processing Magnifi cation change in main scanning direction Following is the main functions of image processing system. • CMOS (image sensor) Number of lines: 4 (R, G, B, B/W) In main scanning direction, image is always scanned by 100% size at copyboard scanning Number of photo cells: 7488 (each line) and DADF scanning, and then magnifi...

  • Page 28: Shading Correction

    Technology 2-17 Shading correction CMOS line Characteristics after sensor output Overview correction The output of the CMOS may not always be uniform because of the following reasons even Target value Characteristics before correction when the density of the original is uniform: Measurement •...

  • Page 29: Fan

    Technology 2-18 Power unit This equipment is equipped with 2 fans. Following is the overview of power supply 24V and 12V power supply for reader controller PCB is generated by the printer unit. 24V is mainly used at the motors, fans and LED lump unit. Also it is supplied to the DADF Code Function driver PCB and DADF scanner unit.

  • Page 30: Service Work

    Technology 2-19 Service work Periodical service When it gets close to its duration period, be sure to clean or replace the concerned parts. Measurement during parts replacement Meas- Perform adjustment and clear counters for the below parts replacement. Item Parts name Interval Reference (For the detail procedure, refer to the adjustment description.)

  • Page 31: Periodic Servicing

    Periodic Service Periodic Servicing Periodic Servicing List Periodic Service...
  • Page 32 Periodic Service Periodic Servicing List PR: Replace ( Periodical parts replacement ) CR: Replace ( Consumble parts ) CL: Cleaning LU: Lubricate AD: Adjustment CH: Inspection Work Interval Reference for Category Parts/Part name Parts No. Number Reference Adjustment Counter Procedure Installation timely Copyboard glass (Surface)

  • Page 33: Parts Replacing And Cleaning

    Parts Replacement and Cleaning Parts Replacing and Cleaning Parts List Main unit Periodical/Consumable parts, Spots to Clean Parts Replacement and Cleaning...

  • Page 34: External Covers

    Parts Replacement and Cleaning Parts List Main unit Parts Name Parts No Reference External Covers Scanner unit FM3-5466-000 Parts Name Reference Front cover Left cover Right cover Rear cover PCB cover Right upper panel Right upper panel PCB cover Right cover Rear cover Scanner unit Front cover...

  • Page 35: Motor

    Parts Replacement and Cleaning Motor Parts Name Parts No Reference Parts Name Parts No Reference Scanner motor FK2-8503-000 FM1 Scanner unit exhaust fan FK2-7243-000 FM2 Scanner unit cooling fan FK2-3149-000 Scanner motor (M1) Scanner unit exhaust fan (FM1) Scanner unit cooling fan (FM2) Parts Replacement and Cleaning...

  • Page 36: Sensor

    Parts Replacement and Cleaning Sensor Parts Name Parts No Reference Parts Name Parts No Reference WG8-5783-000 DADF open/closed sensor 1 PCB1 Reader controller PCB FM3-7557-000 WG8-5783-000 Scanner unit home position sensor CMOS PCB WG8-5783-000 DADF open/closed sensor 2 LED lamp PCB (left) FK2-7162-000 Original size sensor 1 LED lamp PCB (right)

  • Page 37: Main Unit

    Parts Replacement and Cleaning Main unit Removing the Scanner unit 1) Remove the front cover. 2) Remove the right upper panel. • • 3 screws 2 screws 3) Remove the copyboard glass. 4) Slide the scanner unit to the center. 5) Remove the wire clasp.
  • Page 38 Parts Replacement and Cleaning 6) Remove the scanner unit. • CAUTION: 1 connector Do not touch the scanner unit by hand, except for the both edges (the place where it fi xes in the scanner wire). Specially be sure not to touch CMOS PCB and mirror. Parts Replacement and Cleaning...

  • Page 39: Periodical/Consumable Parts, Spots To Clean

    Parts Replacement and Cleaning Periodical/Consumable parts, Spots to Clean Turndown Mirror/Free Curved Mirror Cleaning <Preparation> 1) Remove the connector. 1) Remove the scanner unit. (Reference: 4-4) CAUTION: W h e n m o v i n g t h e L E D l a m p unit, be sure not to put too much tension on the connected harness, as it might break.
  • Page 40 Parts Replacement and Cleaning 2) Remove the 2 screws, move the LED lamp unit. 3) Clean the turndown mirror and free curved mirror. turndown mirror free curved mirror turndown mirror free curved mirror Parts Replacement and Cleaning...

  • Page 41: Adjustments

    Adjustmnet Adjustments Overview Adjustment Method Adjustmnet...
  • Page 42 Adjustmnet Overview The following is adjustment items list. Main Parts Reader Controller Reader Controller Scanner Item Copyboard Glass Reference PCB (replace) PCB (RAM Clear) *1 Unit (Ref: 4-4) Replacement/Before RAM Clear P-PRINT output Using SST, upload R-CON back up data. The newest system software download Replacement/After RAM Clear Using SST, download R-CON back up data.
  • Page 43 Adjustmnet Service mode backup The machine is adjusted one by one at the factory shipment and the adjustment values are written on the service label. When the adjustment is carried out at a fi eld and the service mode values are changed, be sure to write the changed values on the service label. If there is no corresponding items on the service label, write the value to a blank fi...

  • Page 44: Measurement During Reader Controller Pcb Replacement And After Ram Clear

    Adjustmnet Adjustment Method a. Input the MTF value of P-PRINT outputted before replacement. COPIER > ADJUST > CCD > Measurement during Reader Controller PCB Replace- MTF2-M1 MTF2-M7 MTF2-S1 MTF2-S7 MTF2-M2 MTF2-M8 MTF2-S2 MTF2-S8 ment and After RAM Clear MTF2-M3 MTF2-M9 MTF2-S3 MTF2-S9 MTF2-M4...
  • Page 45 Adjustmnet 6) Input the value written the service label (the inside of PCB cover). Adjust tray width. Perform either AB system or Inch system. a. AB system adjustment. COPIER > ADJUST > ADJ-XY > a-1) Select the item in the service mode. ADJ-X ADJ-Y-DF ADJ-X-MG...

  • Page 46: Processing After Scanner Unit Replacement

    Adjustmnet Processing after Scanner Unit Replacement 2) Perform sampling of B&W shading target. COPIER > FUNCTION > CCD > MEMO: BW-TGT The adjustment method differs depending whether the unit replaced is Reader Scanner or DADF Scanner. 3) Perform white level adjustment. 3-1) Set A4 or LTR paper in the copyboard glass, close the DADF.
  • Page 47 Adjustmnet 4) Set the scanner unit replacement fl ag. a. Reader COPIER > ADJUST > CCD > CCD-CHNG b. DADF COPIER > ADJUST > CCD > CCD- CHG2 5) Check the copy image. If moiré appears, adjust the MTF. a. Reader COPIER >...

  • Page 48: Processing After CopyOard Glass Replacement

    Adjustmnet Processing after Copyboard Glass Replacement 3-5) Again, Set A4 or LTR paper in the copyboard glass, close the DADF. 1) Input the white level data (barcode value in the copyboard glass right upper) of the stand- 3-6) Perform service mode item. ard white plate.

  • Page 49: Installation

    Installation Installation Color Image Reader - L1 Installation...

  • Page 50: Point To Note AOut Installation

    Point to Note About Installation CAUTION: • This manual has been issued by Canon Inc. for qualified persons to learn technical theory, installation, maintenance, and repair of Products. • At servicing, be sure to turn OFF the power source according to the specifi ed steps and disconnect the Power Plug.

  • Page 51: Checking The Contents

    Installation Checking the contents [1] ADF Reader Unit x 1 [2] Reader Turn Plate x 1 [3] Reader Rear Cover x 1 [4] Reader Support Plate x 1 [5] Reader Fixing Plate x 2 [6] Plug Cover A x 1 [7] Wire x 1 [8] Stepped Screw (M3) x 4 [9] Screw (RS tight;...

  • Page 52: Turning Off The Host Machine

    Installation Turning Off the Host Machine CAUTION: Be sure to turn off the main power in the following order to protect hard disk of the host machine. 1) Press the power switch on control panel for 3 sec or more. 2) Follow the instruction on the shutdown sequence screen (the main power switch will go off automatically).

  • Page 53: Installation Procedure

    Installation Installation procedure Unpacking CAUTION: Since this machine weights approx. 40 kg, it is necessary to have 2 persons to lift it. And keep the machine in the horizontal line when lifting it. 1) Unpack, take out the equipment from the package box, and put it above the box. MEMO: Shift it approx.
  • Page 54 Installation Remove the External Cover Installed at the same time with the host machine 1) Remove the upper right cover-2. 2) Remove the 2 stopper pins. • 2 screws 3) Open the front left cover fi rst, then front right cover. 4) Remove the upper front cover.
  • Page 55 Installation 5) Remove the upper cover. (The upper cover detached is not used.) 6) Remove the upper left cover 2. 7) Turn the control panel in the direction of the arrow until it stops. Installation...
  • Page 56 Installation 8) Remove the upper right cover 1 in the direction of the arrow. • Loosen 2 stepped screws. • Claw in 1 spot. CAUTION: When removing theupper right cover 1, be sure that the screw is not hooked onto the screw hole. Screw Screw 9) Remove the reader rear cover stay.
  • Page 57 Installation Installed after the host machine installation 1) Remove 3 screws of the upper cover. (the removed screw will be used in the step 6) in ”Install the 2) Remove the upper right cover 2 [1]. • external cover” Installed after the host machine installation). Loosen 2 stepped screws.
  • Page 58 Installation 5) Remove the upper front cover. 6) Remove the upper cover [1] of host machine. (The upper cover detached is not used.) • • Loosen 3 screws. 3 screws [2] (the removed screw will be used in the step 6) in ”Install the external cover" •...
  • Page 59 Installation 6-10 9) Remove the upper right cover 1 in the direction of the arrow. • Loosen 2 stepped screws. • Claw in 1 spot. CAUTION: When removing theupper right cover 1, be sure that the screw is not hooked onto the screw hole.

  • Page 60: Connection Of The Equipment

    Installation 6-11 Connection of the equipment 1) Install the reader turn plate. • 2 screws (RS tight ; M4 x 8) (left right) • 3 screws (RS tight ; M4 x 8) (lower) Left-right side: Lower side: 6-11 Installation...
  • Page 61 Installation 6-12 2) Install the wire (host machine side). • 1 stepped screw (M3) CAUTION: MEMO: Make sure that the wire • Be sure not to remove does not fall to the [A] part. the screw as the DADF might drop. •...
  • Page 62 Installation 6-13 5) Have 2 persons to lift the reader, and move it as shown on the fi gure, and put it on the host machine. CAUTION: Be sure to lift it with 2 people or more. Also, be careful not to get your fi ngers caught when putting the reader on the host machine’s top plate. e.g.
  • Page 63 Installation 6-14 6) Install the reader with pin. MEMO : MEMO : It comes off a bit toward the pin area It comes off a bit toward the pin area of the right side of the reader. of the right side of the reader. 7) Install the wire (reader side).
  • Page 64 Installation 6-15 8) Remove the 2 screws form the reader mount (the removed screws will not be used anymore). CAUTION: In this equipment, remove the screws in the [A] part on the left side as shown in the fi gure. Be sure not to remove the screws in the [B] part. 6-15 Installation...
  • Page 65 Installation 6-16 9) While lifting and holding the reader in the direction of the arrow and remove the reader mount (the removed reader mount will not be used anymore). CAUTION: CAUTION: • • Do not over lift the reader in the direction of the arrow. Do not over lift the reader in the direction of the arrow.
  • Page 66 Installation 6-17 11) Remove the 2 scanning system fi xing screws. CAUTION: CAUTION: Since the 2 mirror fixed screws will be necessary Since the 2 mirror fixed screws will be necessary during feeding, be sure to keep them. during feeding, be sure to keep them. CAUTION: In this equipment, remove the screws in the [A] part on the left side as shown in the...
  • Page 67 Installation 6-18 12) Lift the original pickup tray and remove the cord with tag and the roller pressure release material. 13) Pass the reader communication cable and reader power cable in the hole of the reader rear cover stay, and install the reader rear cover stay. •...

  • Page 68: Install The External Cover

    Installation 6-19 Install the external cover Installed at the same time with the host machine 1) After installing the upper right cover 1, turn it in the direction of the arrow until the control panel stops. • 2 stepped screws (tighten). •...
  • Page 69 Installation 6-20 3) Install the upper front cover of the host machine. • 3 stepped screws (tighten). • 1 cover rubber (packed together with the host machine). 4) Install the 2 stopper pins. • 2 screws 6-20 Installation...
  • Page 70 Installation 6-21 5) Install the upper right cover-2 • 2 screws (M4) (packaged together with the host machine). • 2 cover rubbers (packaged together with the host machine). MEMO: MEMO: • • When installing the stepped screw, cut the tap with the When installing the stepped screw, cut the tap with the screw thread and tighten it.
  • Page 71 Installation 6-22 8) Insert the reader communication cable [1] to the host machine. 9) Install the plug cover A. • 2 screws (use the screws removed on the step 7)) 10) Insert the reader power cable into the host machine. 6-22 Installation...
  • Page 72 Installation 6-23 Installed after the host machine installation 1) After installing the upper right cover 1, turn it in the direction of the arrow 2) Install the upper left cover-2 of the host machine. • until the control panel stops. 1 stepped screw (tighten) •...
  • Page 73 Installation 6-24 4) Install the 2 stopper pins. • 2 screws 5) Install the upper right cover-2 of the host machine. 6) Install the reader rear cover. • • 2 screws (tighten) 4 screws (use 4 out of 6 screws removed on the “Remove the External Cover” Installed at •...
  • Page 74 Installation 6-25 7) Remove the connector cover (the removed connector cover will not be used anymore). 8) Insert the reader communication cable [1] to the host machine. • 2 screws (use the screws removed on the step 9)) 9) Install the plug cover A. 10) Insert the reader power cable into the host machine.

  • Page 75: Affixing Labels

    Installation 6-26 Affi xing Labels - Affi x the label for the appropriate language over the positions shown in the fi gure below. Copy prohibition label Cleaning position label Cleaning procedure label Finger pinch caution label Finger pinch caution label Cleaning procedure label Cleaning position label Copy prohibition label...

  • Page 76: Post-Installation Check

    Installation 6-27 Post-installation check After installing this equipment, check the following setting. 1) Turn on the power switch of the accessory. 2) Turn on the main power switch of the host machine. CAUTION: Be sure to turn on the main power switch of the host machine after turning on the power switch of the accessory.

  • Page 77: Perform The Auto Gradation Adjustment

    13) Remove the testprint off the copyboard glass. MEMO: The number of outputted testprint : • Color image reader - L1 equipped only : 1 sheet • When Color Image Reader-L1 and imagePRESS Server are equipped: 3 sheets • When Color Image Reader-L1 is equipped and PS Multi Kit is enabled: 3 sheets...

  • Page 78: Appendix

    Appendix Appendix Service Tools General Circuit Diagram Appendix...

  • Page 79: List Of Oils/Solvents

    Appendix Service Tools List of Oils/Solvents The below is the necessary oils/solvent for cleaning and lubricating. Name Uses Composition Remarks Lubricant Scanner rail / shaft Silicone oil - KF96SS (300CS) - Tool No.: FY9-6011 (50cc) Appendix...

  • Page 80: General Circuit Diagram

    General Circuit Diagram General Circuit Diagram (1/1) To DADF driver PCB To DADF driver PCB J12M J401 TO CONTROLLER (Reader cable) TO CONTROLLER (Reader cable) J401_BUS[1:31] J12F J401_BUS[0:31] FROM PRINTER J5001C J1501_BUS[1:30] LATTICE Reader heater (200V) J5001M J1101 J206_BUS[1:40] J1501F J1501M J5100F HOT(BLACK)

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