Canon imageFORMULA DR-C240 Service Manual

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SERVICE

MANUAL

imageFORMULA

DR-C240

March 1, 2015

Rev. 0

CANON imageFORMULA DR-C240 Rev. 0 PRINTED IN U.S.A.

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Page 1 DR-C240 SERVICE MANUAL March 1, 2015 Rev. 0 COPYRIGHT  2015 CANON INC. CANON imageFORMULA DR-C240 Rev. 0 PRINTED IN U.S.A.
Page 3 Bulletins to gain a correct and deeper understanding of the machine. This is one way of fostering response for ensuring prolonged quality and function, and for investigating the cause of trouble during troubleshooting. Quality Assurance Center Canon Electronics Inc. COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 4: Table Of Contents
1. Layout of Electrical Components ..2-18 1. System Requirements......4-1 VII. PARTS LAYOUT ON EACH PCB ..2-19 2. Checking the Accessories....4-1 1. Control PCB ........2-19 3. Document Feed Tray and Packing Material...4-2 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 5 1. Power Does Not Come ON ....5-29 2. No Scanner is Found......5-29 3. Scanning Does Not Start ....5-30 4. Scanner Does Not Feed Properly ..5-31 5. Scanning Speed is Slow....5-32 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 7: General Description
CHAPTER 1 GENERAL DESCRIPTION PRODUCT OUTLINE......1-1 III. USER OPERATION ........ 1-7 I I. NAME OF PARTS ........1-6 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 9: Product Outline
“Windows” is a trademark of Microsoft Corporation in the U.S. and other countries. Other company names and product names mentioned in this document are registered trademarks or trademarks of the respective companies. COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 10: Main Specifications
SDRAM 16MB *Used for the working memory together. Output data to computer 1) Type: 8bit gray or 24bit color 2) Resolution: 600x600dpi, 600x400dpi, 300x300dpi, 300x240dpi, 300x200dpi, 300x150dpi, 300x100dpi Table 1-101a COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 11 2) Double feed detection by ultrasonic sensor Operation/Indication 1) Button: Power, Start, Stop, Function, Double feed release 2) LED: 7-segments function, Power, Double feed release 3) Lever: Feed selection, Main body open Table 1-101b COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 13: Precautions
If it is, use may be forcibly suspended. To change the specifications or dis- assemble and reassemble this machine, follow the instructions described in this manual and the service information. COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 14: Name Of Parts
Figure 1-203 Figure 1-204    USB connector Job No. indicator Start button    Power connector Job select button Stop button   Security slot DFR butto COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 15: User Operation
Figure 1-303 3) Place the document, and adjust the document guides to fit the document width. Figure 1-301 Figure 1-304 Figure 1-302 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 16: Scanning
2) From [1 Select document] in the Standard documents. Scanning, select the appropriate scan mode panel for the document you want to scan. In the figure below, [Full auto] is selected. Figure 1-308 Figure 1-306 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 17: Clearing A Paper Jam
1) Remove any remaining documents from the document feed tray. Figure 1-309 Figure 1-310 2) Pull the OPEN lever and open the front unit out towards you. Remove any jammed documents. Figure 1-311 Figure 1-312 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 19: Functions And Operation
POWER SUPPLY........2-16 READING SYSTEM ........ 2-6 VI. LAYOUT OF ELECTRICAL COMPONENTS. 2-17 III. FEED SYSTEM ........2-8 VII. PARTS LAYOUT ON EACH PCB..2-18 I V. CONTROL SYSTEM ......2-12 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 21: Outline
AC power with the AC adapter, to This system is comprised of an image the control PCB of this machine. processing section and a feed control section. The image processing section controls COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 22: Feed Path
  Retard roller Document stopper   Registration roller (drive) Upper reading unit   Registration roller (follower) Lower reading unit  Eject roller (drive)  Eject roller (follower) COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 23: Motor Drive
The main motor drives the retard roller, the feed roller, the registration roller, and the eject roller. The main motor also moves the stoppers and the pressure roller. Figure 2-103 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 24: Electrical Circuits
CHAPTER 2 FUNCTIONS & OPERATION 4. Electrical Circuits An overview of the electrical circuits block diagram of this machine is shown below. Figure 2-104 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 25: Timing Chart
Shown below is the timing chart for reading documents consisting of 2 sheets fed separately. When a scan is started, the main motor starts turning, initial operation performed, and then the document is fed. Figure 2-105 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 27: Shading
PCB recording placed under the reading glass, feeding the shading correction value. document does not cause dirt on it. Note that executing shading while the reading COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 28: Feed System
  Registration roller (follower) Ultrasonic sensor detection point   Eject roller (drive) Post-registration sensor detection point  Eject roller (follower) (left / center / right)  Pressure roller COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 31: Registration Sensor
Figure 2-304(c). This machine has 3 registration sensors, and these sensors prevent missing in the image. This machine does not have the pre-registration sensor. Figure 2-304 2-11 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 32: Feed Error Detection
2) Double Feed Detection There are 2 double feed detection Figure 2-305 methods: the document length detection 2-12 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 33: Control System
1. Control Circuits The overall system of this machine is controlled by the control PCB. The block diagram and the function list of major ICs are shown below. Figure 2-401 2-13 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 34 Working memory for the scanner controller and for storing image data temporarily IC117 Flash memory (8Mbit) Stores firmware IC201 Scanner controller Overall scanner control IC408 Motor driver For driving the main motor Table 2-401 2-14 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 35: Image Processing
Bleed-through reduction (when on) Other processing One-dimensional gamma correction Auto-size detection Deskew Edge enhancement Image rotation Skip blanks File creation Other Binarization Color Grayscale Binary Data after image processing Figure 2-402 2-15 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 36 The scanner controller then outputs the image data to the computer via the USB interface. The computer corrects the shading and processes the image according to the user settings. 2-16 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 37: Power Supply
(4 hours). voltages and supply power to each of the components. Power switch Control PCB DC24 V DC24 V AC adapter Each DC DC/DC voltage converter Figure 2-501 2-17 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 38: Layout Of Electrical Components
Motor Main motor Base unit (right) Control PCB Base unit PCB1 Sub PCB Front unit PCB2 Operation PCB Front unit PCB3 Ultrasonic drive PCB Base unit PCB4 Table 2-601 2-18 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 39: Parts Layout On Each Pcb
→CPU operation/DC power J104 Sub PCB good Ultrasonic driver PCB J108 Main motor Table 2-702 J601 CIS PCB (front) J602 CIS PCB (back) J606 – USB I/F Table 2-701 2-19 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 40: Sub Pcb
Control PCB Q5/LED5 Document detection sensor J202 Operation PCB Q4/LED4 Post-registration sensor (middle) Table 2-703 Q21/LED6 Post-registration sensor (left) Q23/LED7 Post-registration sensor (right) Door sensor Ultrasonic sensor (receiver) Table 2-704 2-20 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 41: Disassembly And Reassembly
The products shown in the figures in this chapter partially different from mass-production's one. EXTERNAL PARTS......... 3-1 III. BASE UNIT ..........3-9 II . FRONT UNIT........... 3-3 READING UNIT........3-15 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 43: External Parts
Note: This component may be removed before disassembling other compo- nents even if not specifically directed. Figure 3-101 Note: This component may be removed before disassembling other compo- nents even if not specifically directed. COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 44: Upper Cover
Note: When you remove the upper cover, the lock lever shaft and the coil spring on the inside, and the feed selection lever may become detached. Also, the Job No. indicator may be detached. Figure 3-104 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 45: Front Unit
Note: The coil spring is mounted inside the document stopper and should be upper part. unhooked. Note: Do not stretch the hooks of the coil spring (small) too much. Figure 3-202 Figure 3-201 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 46 Figure 3-204 When mounting the PCB unit on the base, all of the fitting parts should be fully seated. There should not be any COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 47: Stop Cam Drive Unit
While tightening the screw , press the  bearing part to prevent the bearing  part of the stop cam drive unit moves in the rotation direction of the screw. COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 50: Registration Roller (Follower)
(2    rollers , shaft , and shaft holder  and the coil spring in the rear side. Figure 3-213 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 51: Eject Roller (Follower)
The metal plate (with a static eliminator) should be attached to the coil spring before attaching the coil spring. Attach the coil spring so that the bending end is facing the frame. COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 52: Base Unit
(M3, with 2 washers), and then remove the main   motor and timing belt Note: You should also remove the screw for USB on the side. Figure 3-301 Figure 3-303 3-10 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 53: Main Motor
Therefore to adjust the belt tension correctly, tighten the screw at the position that you marked during disassembly. To adjust the tension with high precision, 3-11 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 54: Eject Roller (Drive)
 the eject roller (drive) Figure 3-308 Figure 3-310  Notes on assembling The bearings should be mounted to match the shape of the frame. 3-12 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 55: Registration Roller (Drive)
Note: The gear (small) is press-fitted into the shaft Figure 3-313  Notes on assembling The bearings should be mounted to match the shape of the frame. Figure 3-312 3-13 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 56: Dust Cover
There should not be any raised parts. The cable holder should be inserted in the original position and the cable should be positioned to align with the cable guide. 3-14 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 57  mount assembling Figure 3-316  Notes on assembling When mounting the separation mount assembling, hook the torsion spring so that it fits into the frame. 3-15 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 58: Reading Unit
Check if the upper reading unit move smoothly when the unit is attached. If it does not move smoothly, attach it again. Figure 3-401 3-16 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 59: Upper Reading Guide
Figure 3-404 Note: Detach fitting parts without damaging the hooks. When removing the case, do not drop the CIS unit and dustproof rubber because they are detached. Figure 3-403 3-17 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 60: Lower Reading Unit
Figure 3-406  Notes on assembling After connecting the cable, and then attach the lower reading unit while pushing the cable inside of the frame. Figure 3-405 3-18 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 61: Lower Reading Guide
CIS unit from the lower reading guide ③. Note: Detach fitting parts without damaging them. When removing the case, do not drop the CIS unit and Figure 3-408 dustproof rubber because they are detached. Figure 3-407 3-19 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 63: Installation And Maintenance
CHAPTER 4 INSTALLATION & MAINTENANCE INSTALLATION ........4-1 III. MAINTENANCE ........4-6 I I. PARTS TO BE REPLACED ....4-4 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 65: Installation
Microsoft Windows 7 (32/64 bit edition) Microsoft Windows 8 or 8.1 (32/64 bit edition) Microsoft Windows Server 2008 R2 Microsoft Windows Server 2012 R2 Note: For details on each version, refer to the “User Manual”. COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 66: Document Feed Tray And Packing Material
3) Load the setup disk into the DVD drive of the computer. 4) The setup menu starts automatically. 5) Click [Typical Installation]. Figure 4-102 Finish the installation by following the on-screen messages. Figure 4-101 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 67: Connecting To A Computer
Refer Figure 4-103 to the “User Manual” for the details. Note: To turn the power OFF, hold down the power button until the light goes off. COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 68: Parts To Be Replaced
Note: The items above are assigned as service parts and an exchange roller kit is assigned as commercially available products for a set. Table 4-201 2) Replaced by service technicians None COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 69: Major Parts List
MF1-4876-000 A reading glass attached Lower Reading Guide MF1-4878-000 A reading glass attached Main motor MG1-5065-000 AC adapter MG1-4558-000 Other than China AC adapter (China) MG1-4892-000 China only Table 4-202 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 70: Maintenance
Use such as air blowers to remove any dust and paper particles that have accumulated on the feed path. Table 4-301 2) Locations to be cleaned   Reading glass Roller Figure 4-302 Figure 4-301 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 71  Start Windows, and login with administra- tor privileges.  Click the [Start] button on the computer, and then click [All Programs], [Canon DR-C240], and [Canon imageFORMULA Figure 4-305 Utility] in order. COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 72 Figure 4-311  The [Canon imageFORMULA Utility] starts, and the screen is displayed.  Click [OK] and then close the property.  Select [Canon DR-C240 USB] and then click [Properties]. Figure 4-310  next screen, click [Maintenance] tab. Next, click [Reset].
Page 73: Service Maintenance
Recommend user replace consumable parts if necessary. Furthermore, remove the cover, check that there is no paper dust or other foreign matter inside the main body, and then perform cleaning. COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 75: Troubleshooting
CHAPTER 5 TROUBLESHOOTING ERROR DISPLAY ........5-1 OPERATION TROUBLESHOOTING ..5-29 SERVICE MODE........5-2 IMAGE TROUBLESHOOTING....5-33 III. TROUBLESHOOTING LIST ....5-28 VI. AFTER REPLACING PARTS ....5-38 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 77: Error Display
 Job No. indicator Display Details The front unit is open A paper jam has been detected A double feed was detected during scanning Other errors Table 5-102 Figure 5-102 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 78: Service Mode
Manual Adjust Manually adjusts the scale and registration of images. Counter Displays and updates the counters. Table 5-201 Figure 5-201 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 79: How To Install
Manual” should be satisfied. enter six characters as “market” and Note: Keep the name of the folder and the select [OK]. password confidential from the user. Figure 5-203 6) Service screen appears. COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 80: Registration Adjustment
The offset amounts of the front trailing edge and back leading edge are calculated from the front and COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 81 Figure 5-205 Black area Note: Do not place extra sheets. 2 to 4mm Shading sheet TKM-0326/0332 3) After placing sheets, select [Registration Adjustment] on the service Figure 5-204 screen. Figure 5-206 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 82 Clean the reading glass, change the registration adjustment sheets to clean ones, and repeat adjustment. Note: Do not follow the direction indicated with X in the market. Figure 5-208 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 83: Light Adjustment
Do not use a sheet with any dirt or creases.  Operation Procedure 1) Clean feed path, roller, and reading glass. Figure 5-211 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 84: All Adjustment
Place a shading sheet on top of the adjustment sheets. Place them properly not to cause skew. Note: Do not place extra sheets. Figure 5-213 6) After the adjustment is complete, the warning screen disappears. Figure 5-214 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 85 CHAPTER 5 TROUBLESHOOTING 3) On the service screen, select [All 4) The adjustment starts automatically. Adjustment]. The sheets are fed and the progress screen is displayed. Figure 5-215 Figure 5-216 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 86: Dcon Check
1) On the service screen, select [Dcon completion screen is displayed. Check]. Figure 5-217 6) After the adjustment is complete, the completion screen is displayed. Click [OK]. Figure 5-219 Figure 5-218 5-10 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 87 Figure 5-221 front unit is open. Table 5-202 Note: The registration sensor icon lights even if the front unit is open. The document sensor is indicated here by “Feed”. 5-11 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 88 To turn on an LED, first select the side you want to turn on, and then select the color (RGB) you want to turn on. Select the (RGB) button again to turn off the LED. Figure 5-223 5-12 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 89 Double Feed Detection “Detect” in red. The screen when Sensor” (USS) screen is displayed. double-feeding is detected is shown below. Double Feed Lamps Document Lamp Figure 5-226 Figure 5-225 5-13 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 90: Check Device
Although the analog values of the analog sensors are not normally used in the market, you may be requested to provide this data for design studies. 5-14 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 91 PCB. If the Control PCB is replaced, enter the serial number shown on the rating label at the main body and select “Set” on the right side. Figure 5-231 5-15 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 92: Manual Adjust
Sensor OFF after registration jam P008 On the service screen, click [Manual (when a document is too short) Adjust] to display the [Scaling Control] Table 5-203 screen. Figure 5-232 5-16 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 93 Zoom  Right On: The setting value of the reading Enlarges the image in above using start position for the right post-registration a slide bar. sensor. Table 5-204a 5-17 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 94 (inside the machine). 3) Set the resolution and size, and then click the [Scan] button. Note: Paper size is “A4” size or “Letter” size. 5-18 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 95 2.0mm Figure 5-236 Note: If the position of the leading edge is incorrect or the image is skewed, perform the scan again. Figure 5-237 5-19 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 96 1) Load the scale parameter adjustment sheet the same as for scale parameter adjustment scan image. However, set the size to "Auto Size". 2) Check the position of the leading edge. 5-20 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 97 4) After entering the values, click the [Set] to “0.00” and then click the [Set] button. button. 5) Scan the image again and check the position. Figure 5-240 Figure 5-241 5-21 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 98 For details, refer to the “Automatic Registration Adjustment” section. 3) Next, perform the procedure from Step 2 in the previous section “Without performing automatic registration adjustment “. 5-22 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 99: Firm Load
Check the trailing edge image 5) Exit the service tool. 6) Turn the scanner power OFF, and then Set [Factory Scale Parameter] Re-scan again Check the final image Figure 5-243 5-23 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 100: About
Note: Do not turn the power OFF including the USB cable is removed during loading. If the power is turned OFF, it returns to its original state when restarted, but this is not guaranteed. 5-24 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 101: Counter
[Current Roller] may take on an invalid value, you should check the counter for the [Current Roller] after exiting service mode and reset it if necessary. Figure 5-247 5-25 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 102: Mechanical Feed Mode
[Mini]. The default setting is [Mini]. If you need the [Full] information, set to [Full] and click the [OK] button. If you changed the log file type, exit the application to apply the change. 5-26 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 103 1) Windows XP C:\Documents and Settings \All Users\Application Data \Canon Electronics\Scanner Drivers\log 2) Windows Vista/7/8/8.1 C:\ProgramData\Canon Electronics \Scanner Drivers\log Figure 5-248 5-27 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 104: Troubleshooting List
Software ware tion dust ment All black/all white/all streaked. Too dark/too light. Streaks in image. Image slanted. Wrong image size. Text cannot be seen. Moire in image. Table 5-302 5-28 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 105: Operation Troubleshooting
Is the USB cable connected? Connect the connectors USB cable correctly. Disconnect the cable and then connect it again. Connect another USB hub. Computer Is the computer compatible? Use compatible equipment. Table 5-402 5-29 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 106: Scanning Does Not Start
Sub PCB Was the problem solved by Done. replacing the sub PCB? Control PCB Was the problem solved by Done. replacing the control PCB? Table 5-403 5-30 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 107: Scanner Does Not Feed Properly
Sub PCB Was the problem solved by Done. Ultrasonic drive PCB replacing the PCB? Control PCB Was the problem solved by Done. replacing the control PCB? Table 5-404 5-31 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 108: Scanning Speed Is Slow
Is the log file setting set to Set to [Mini]. [Full] [Full]? Long document mode Is the setting for the long Set to [Standard]. setting document mode [1000mm] or [3000mm]? Table 5-405 5-32 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 109: Image Troubleshooting
Too light Streaks 1 Streaks 2 Streaks 3 Slanting Skew correction Wrong size Auto size Has shadows Original document Missing leading Margin at leading Stretched Compressed edge edge Table 5-501 5-33 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 110: All Black/All White/All Streaked
Setup of “Contrast” “Contrast” setup properly? Change the setup. Light Adjustment Have executed Light Execute the Adjustment? adjustment. Table 5-503 5-34 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 111: Streaks In Image
You can correct the slant of an image using image processing. Feeding documents Are documents fed straight? Perform the checks in “IV. RESOLVING MALFUNCTIONS, 4.The Document Does Not Feed Properly”. Table 5-505 5-35 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 112: Wrong Image Size
・If misfeeds or paper jams occur frequently, clean the feed roller, and clean the carrier sheet or change it to a new one. ・If the scan image is blurred, clean the carrier sheet or change the sheet to a new one. 5-36 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 113: Text Cannot Be Seen
Cause/Faulty Step Check Item Result Action Locations Setup of “Moire Is “Moire Reduction” set? Set it. Reduction” Increase the resolution. Set to “High Quality Moire Reduction”. Table 5-508 5-37 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 114: After Replacing Parts
(sub PCB), or a light guide, execute [Regist Adjustment] service mode. Furthermore, execute the regist manual adjustment in [Manual Adjust] screen if necessary. 5-38 COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 119: List Of Special Equipment
Note: Rank notation: A: Equipment that each service technician must carry. B: Equipment that can be shared among a group of 5 service technicians. C: Equipment that each workshop needs to have. COPYRIGHT © CANON ELECTRONICS INC. 2015 CANON DR-C240 FIRST EDITION...
Page 121 Prepared by Quality Assurance Center Canon Electronics Inc. 3-5-10 Shibakoen, Minato-ku Tokyo 105-0011, Japan FIRST EDITION: MAR. 2015...
Page 122 0315SEC...

Canon imageFORMULA DR-C240 Service Manual

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