Canon MF720 Series Service Manual
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Canon MF720 Series Service Manual

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Revision 2.0
MF720 Series
Service Manual

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Summary of Contents for Canon MF720 Series

  • Page 1 Revision 2.0 MF720 Series Service Manual...
  • Page 2 When changes occur in applicable products or in the contents of this manual, Canon will release technical information as the need arises. In the event of major changes in the contents of this manual over a long or short period, Canon will issue a new edition of this manual.
  • Page 3 Introduction Symbols Explanation Symbols Explanation Disconnect the connector. Connect the power cable. Connect the connector. Disconnect the power cable. Remove the cable/wire from the Turn on the power. cable guide or wire saddle. Install the cable/wire to the cable Turn off the power. guide or wire saddle.

  • Page 4: Table Of Contents

    Contents Contents Safety Precautions....................1 Laser Safety............................2 How to Handle the Laser Scanner Unit....................2 Toner Safety............................2 About Toner............................2 Handling Adhered Toner........................2 Notes When Handling a Lithium Battery..................... 3 Notes on Assembly/Disassembly......................3 1. Product Overview.....................4 Product Lineups..........................5 Host Machine............................5 Options..............................
  • Page 5 Contents Controls..............................35 Fixing System............................41 Overview............................41 Controls..............................41 Pickup / Feed System........................44 Overview............................44 Parts Configuration..........................44 Drive Configuration..........................45 Controls..............................45 Embedded RDS..........................48 Product Overview..........................48 Service cautions..........................48 E-RDS Setup............................49 FAQ..............................51 Troubleshooting..........................53 Error code and strings......................... 54 Setting Information Export/Import Function (DCM)................58 Function Overview..........................
  • Page 6 Contents Removing the Upper Cover........................125 Removing the Cartridge Tray......................127 Document Exposure, Feed System....................128 Location............................128 Document Exposure, Feed System Disassembly/Assembly Procedure......... 130 Removing the ADF Unit + Reader Unit....................130 Separating the ADF Unit + Reader Unit....................131 Removing the ADF Roller Unit......................136 Removing the ADF Pickup Roller.......................
  • Page 7 Contents Fixing System..........................199 Location............................199 Fixing System Disassembly/Assembly Procedure................200 Removing the Fixing Assembly......................200 Removing the Fixing Film Unit......................201 Removing the Fixing Pressure Roller....................205 Removing the Fixing Motor Unit......................205 Pickup Feeder System........................208 Location............................208 Pickup Feeder System Disassembly/Assembly Procedure.............209 Removing the Cassette Pickup Roller....................
  • Page 8 Contents Outline..............................251 Jam code............................251 Error Codes............................. 252 Jam Code............................257 8. Service Mode....................259 Overview............................260 Service Mode Menu...........................260 Backing up Service Mode........................260 Screen flow of Service mode......................261 Remote UI service mode........................262 COPIER............................264 DISPLAY............................264 I/O..............................265 ADJUST............................266 FUNCTION............................277 OPTION............................

  • Page 9: Safety Precautions

    Safety Precautions Laser Safety.......... 2 How to Handle the Laser Scanner Unit ............2 Toner Safety..........2 Notes When Handling a Lithium Battery..........3 Notes on Assembly/Disassembly..3...

  • Page 10: Laser Safety

    Safety Precautions Laser Safety Since radiation emitted inside the machine is completely confined within protective housings and external covers, the laser beam cannot escape from the machine during any phase of user operation. Therefore this machine is classified in Class 1 laser products that are regarded as safe during normal use according to International Standard IEC60825-1.

  • Page 11: Notes When Handling A Lithium Battery

    Safety Precautions • Never use warm water for cleaning up toner to prevent toner particles from being gelated to soak into fibers permanently. • Toner particles are reactive with vinyl polymers. Avoid contacting these materials. Notes When Handling a Lithium Battery CAUTION: RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.

  • Page 12: Product Overview

    Product Overview Product Lineups........5 Product Features........7 Specifications........8 Name of Parts........14...

  • Page 13: Product Lineups

    1. Product Overview Product Lineups Host Machine Function MF720 Series (COUNTRY / REGION) MF728Cdw MF727Cdw MF726Cdw MF725Cdn MF724Cdw MF722Cdw (EUR) (CHN, KOR) (USA/CND/ (CHN) (EUR) (JP) LTN, JP) Appearance Copy Print USB Scan Network Scan Wireless LAN Direct Mode SEND...

  • Page 14: Options

    1. Product Overview Options ■ Hardware Products Name Description Remarks Cassette Feeding Module-V1 Expansion of the number of sheets picked up: 250 sheets (60 to 90 g/m TELEPHONE 6 KIT Long cord Cool White Addition of phone MF728Cdw HANDSET KIT 3 Long cord Cool White Standard: MF727Cdw (CHN) / MF725Cdn...

  • Page 15: Product Features

    1. Product Overview Product Features Features ■ Compact Size MFP A compact body size for A4 color laser MFP has been realized. 478.5 mm 434 mm ■ Improved Control Panel operability A 3.5-inch color Touch Panel is installed. Support for touch and flick has realized the operability like a smartphone. In addition, reducing the hard keys and changing them to icons in the display have realized the UI that allows for easy customization while maintaining the level of operability.

  • Page 16: Specifications

    1. Product Overview Specifications Specifications of Host Machine Item Specification / Function Copyboard Fixed Device Installation Desktop Light source LED (RGB) Photoreceptor OPC drum (φ24) Image scanning CIS (color) Light exposure method Laser beam exposure Charging method Roller charging Developing method Contact development Transfer method Primary transfer: Sequential 4 colors transfer to Intermediate Transfer Belt...
  • Page 17 1. Product Overview Item Specification / Function Print area MP Tray (Non-envelope) For print jobs: • Leading edge: 5.0 +/- 2.0 mm • Left Side: 5.0 +/- 1.5 mm For copy jobs: • Leading edge: 5.0 +/- 2.0 mm • Left Side: 5.0 +/- 1.5 mm FAX / Report: •...

  • Page 18: Adf Specifications

    1. Product Overview Item Specification / Function Operational noise At stand-by: • 43 dB or lower (acoustic power level) During copy jobs: • Color: 67 dB or lower • B&W: 66 dB or lower Power rating Rated input voltage: 100 V (100 V system), 120 to 127 V (120 V system), 220 to 240 V (200 V system) Rated input frequency: 50/60 Hz Maximum power consumption 100 V / 120 V / 230 V: 1200 W or lower Average power at operation...

  • Page 19: Send Specifications

    1. Product Overview Item Specification / Function Data Transmission Rate IEEE 802.11g: • 6 / 9 / 12 / 18 / 24 / 36 / 48 / 54 Mbps IEEE 802.11b: • 1/2/5.5/11 Mbps IEEE 802.11n: • SGI Invalidated 20 MHz : 6.5 / 13 / 19.5 / 26 / 39 / 52 / 58.5 / 65 Mbps •...

  • Page 20: Fax Specifications

    1. Product Overview FAX Specifications Item Specification / Function Suitable line Public Switched Telephone Network (PSTN) * Telephone line connection: 1 Communication Protocol Super G3, G3 Modulation method Image modulation: V.34 / V.17 / V.29 / V.27ter Transmission procedure: V.21 Transmission speed 33,600 bps Compression method...

  • Page 21: Paper Types / Paper Size

    Yes *3 Yes *4 *1: Use transparency sheets for laser printers. (Canon’s genuine transparency sheets are specially recommended.) *2: Fax-received documents or reports can be printed. (excluding heavy paper) *3: Paper of the following custom paper sizes can be loaded.

  • Page 22: Name Of Parts

    1. Product Overview Name of Parts External View ■ Front Side Name Name Feeder Grip Control panel Paper scanner for document from feeder Front cover Delivery tray Paper cassette Manual feed guide Main power switch Copyboard glass Vent-hole USB memory port Speaker Multi-purpose tray (MP tray)
  • Page 23 1. Product Overview ■ Rear Side 4 5 6 Name Name USB port Handset terminal LAN port Rear cover USB port Rating plate Telephone line terminal Vent-hole External telephone terminal Power socket ■ Inside Name Y toner cartridge slot M toner cartridge slot C toner cartridge slot Bk toner cartridge slot Toner cartridge tray...

  • Page 24: Cross Section View

    1. Product Overview Cross Section View ■ Host Machine [2] [3] [17] [16] [15] [14] [13] [12] [11] [10] Name Name Fixing assembly MP tray feed roller Pressure roller Primary transfer pad Fixing film unit ITB unit Delivery roller Cassette pickup roller Toner cartridge Cassette separation roller Laser scanner unit...
  • Page 25 1. Product Overview ■ Reader / ADF Unit Name Name ADF registration roller Reader unit ADF separation roller ADF delivery roller ADF pickup roller ADF separation pad ADF unit CIS unit...

  • Page 26: Control Panel

    Press to put the machine into sleep mode. The key lights up green when the machine is in sleep mode. Press the key again to exit sleep mode. NFC (Near Field Communication) Pass an NFC-enabled smartphone,etc. with a Canon NFC-compliant application installed on mark *1 it over this mark to perform printing and other operations.

  • Page 27: Technical Explanation

    Technical Explanation Basic Configuration......20 Document Exposure/Feeder System ............22 Controller System........26 Laser Control System......29 Image Formation System....30 Fixing System........41 Pickup / Feed System......44 Embedded RDS........48 Setting Information Export/Import Function (DCM)....... 58...

  • Page 28: Basic Configuration

    2. Technical Explanation Basic Configuration Configuration function This device is roughly composed of the 6 functional blocks as shown in the figure below • Document exposure/delivery system • Controller system • Laser exposure system • Image formation system • Fixing system •...
  • Page 29 2. Technical Explanation Section Outline Operation LSTR Interval from print job completion The last page of the print job is completely delivered. In this status, the laser scanner (Last rotation) to motor deactivation. unit and high-voltage bias PCBs are inactive. The printer starts the initial rotation upon receiving a print command from the main controller during this status.

  • Page 30: Document Exposure/Feeder System

    2. Technical Explanation Document Exposure/Feeder System Document Exposure System ■ Overview Specifications / Control / Function List Item Function / Method Document Exposure Document Scan Book Mode: • Scan by the shift of the contact sensor (CIS) ADF: • Document stream reading by fixed contact sensor (CIS) Scanning Resolution Color: •...

  • Page 31: Document Feeder System

    2. Technical Explanation ■ Reference Position for Reading/Printing The reference position for reading/printing from the copyboard or ADF is explained below. ● Reference Position for Reading Upper left alignment is applied when the original is read from the copyboard, and center alignment is applied when the original is read from the ADF.
  • Page 32 2. Technical Explanation M721 J903 MCON ■ Various Control ● Original Detection There are two types of Original Detection in this Equipment. 1. Original Presence / Absence Detection Setting the original onto the original tray pushes up the actuator, activating (light shielded =>light transmitted) the Document Sensor (SR703), and resulting in detection of the presence of original.
  • Page 33 2. Technical Explanation How to release Jam. Remove the jammed paper and open / close the ADF upper cover...

  • Page 34: Controller System

    2. Technical Explanation Controller System Overview This product is mainly controlled by the main and DC controllers. Wireless LAN PCB Reader Unit DC Controller PCB Network Relay PCB Telephone Line Off Hook PCB Main Controller FAX-NCU PCB Driver PCB Low Voltage Sub PCB Low Voltage Main PCB Parts name Role...
  • Page 35 2. Technical Explanation ■ Open door detection This product detects door opening by the door open sensor. Sensor Name Function Front Cover Sensor (SR612) Detect open the Front Cover. Rear Cover Sensor (SR613) Detect open the Rear Cover. When this sensor detects door opening, the DC controller stops driving motors and solenoids. ■...
  • Page 36 2. Technical Explanation Power-Saving Mode Status Stand-by at power-OFF on the reader Power-saving at power-OFF on the reader and the display (LCD) Sleep Sleep 1 at power-OFF on the reader, engine and the display (LCD) Sleep 2 at power-OFF on the reader and the engine. Sleep 3 (3W sleep) at power-off on the reader, the engine and the display (LCD) The main controller enters the power-saving mode.

  • Page 37: Laser Control System

    2. Technical Explanation Laser Control System Overview The Laser Scanner system is to form a static latent image on the photosensitive drum based on the video signal sent from the Main Controller. The Laser Scanner Unit is composed of the laser driver, the Scanner Motor Unit and other components, which are controlled based on signals input by the DC Controller.

  • Page 38: Image Formation System

    2. Technical Explanation Image Formation System Overview The image formation system holds the core function of this product to form toner images on paper. To form toner images, the DC controller controls various high-voltage power supply PCBs. This product is a compact and high-speed color printing device that employs the 4-drum and intermediate transfer method. The image formation system is composed of the following components.
  • Page 39 2. Technical Explanation Block Step Description Static latent image Primary charging Charge the photosensitive drum surface negatively. forming Laser beam exposure Form a static latent image on the photosensitive drum. Development Development Deposit toner to visualize the static latent image. Transfer Primary transfer Transfer the toner image on the photosensitive drum to the ITB.
  • Page 40 2. Technical Explanation Laser beam Unexposed area Exposed area ■ Block 2 : Development The static latent image formed on the photosensitive drum is visualized by toner deposited in this block. ● Step 3: Development Toner is deposited on the static latent image formed on the photosensitive drum. Toner is then charged negatively through friction between the developing cylinder and the developing blade surface.
  • Page 41 2. Technical Explanation Photosensitive drum Primary transfer pad DC bias ● Step 5: Secondary transfer Transfer the toner image on the ITB to paper. The DC positive bias is applied to the secondary transfer external roller to charge the paper positively. By this, the negatively charged toner image on the ITB is transferred to the paper.
  • Page 42 2. Technical Explanation Fixing lm Pressure roller Fixing heater Toner Media ■ Block 5 : ITB Cleaning The residual toner on the ITB surface is cleaned in this step. ● Step 8: ITB cleaning The DC positive bias is applied to the ITB cleaning roller and the ITB cleaning brush to charge the collected toner positively. The positively charged collected toner is reversely transferred from the ITB to the photosensitive drum by the primary transfer pad.

  • Page 43: Controls

    2. Technical Explanation Cleaning blade Photosensitive drum Waste toner container Sweeper strip Controls ■ High-voltage power supply control ● Overview The high-voltage power supply PCBs are to apply high-voltage bias to the primary charging roller, the primary transfer pad, the secondary transfer external roller, and the ITB cleaning unit.
  • Page 44 2. Technical Explanation Primary charging Developing bias Blade bias circuit bias circuit circuit Cartridge Photosensitive drum Primary transfer pad cleaning unit Secondary transfer external roller ITB cleaning brush ITB cleaning roller Secondary transfer Primary transfer bias circuit bias circuit bias circuit bias circuit High-voltage power supply DC controller...
  • Page 45 2. Technical Explanation Laser scanner unit Toner cartridge Color displacement/density sensor ITB unit Signal from color Bias High-voltage displacement/density signal power supply PCBs Video signal Auto-gradation D-max correction control Color displacement Reader unit D-half correction control ● Execution timing The table below lists the execution timing and duration of each control. Executiontiming Duration D-max...
  • Page 46 2. Technical Explanation 2. To optimize the density of the measured patterns, control the primary charging bias and the developing bias. The image density correction control is triggered under the conditions below. • In the case of Menu > Adjustment/Cleaning > Auto Adjustment Settings > Auto Adjustment Image Regularly: OFF (default) 1.
  • Page 47 2. Technical Explanation Item Description Test pattern Output sheets Type Copy image correc- Gradation of copy images is corrected 1 sheet for for error diffusion process tion based on the gradation density read on out- put test pattern by the reader. Operational flow Gradation is corrected either in the 3 approaches above in the following flow.
  • Page 48 2. Technical Explanation Enhanced image stabilization is achieved by replacing the conventional transfer roller with the transfer pad. The characteristic of the pad transfer method is: • It maintains the wider nip to the photosensitive drum to increase transferability. The figures below show the difference between the pad transfer method and the conventional roller transfer method schematically. Photosensitive drum Wider nip width Narrow nip width...

  • Page 49: Fixing System

    2. Technical Explanation Fixing System Overview The fixing power supply controls temperatures of the Fixing Assembly. This product employs the on-demand fixing method in the Fixing Assembly. The figure below shows the structure schematically. TH803 Fixing Power Supply DC Controller H100 TH801 Fixing Control...
  • Page 50 2. Technical Explanation NOTE: • With MF8200 series, this control is not executed since detection of temperature by the Sub Thermistor is not performed. • Tempreture of Sub Thermistor: T1 < T2 < T3 < T4 ● Reduction of Throughput by Feeding Small Size Paper NOTE: When paper size is specified by user, paper interval is increased from the 2nd sheet of the job.
  • Page 51 2. Technical Explanation 2. Printing temperature control This controls the fixing film temperature during printing to maintain the target. Different temperatures are set in the fixing film depending on paper types. 3. Sheet-to-sheet temperature control This control lowers the sheet-to-sheet fixing heater temperature during continuous printing in the low-speed mode to prevent temperature rise on the pressure roller.

  • Page 52: Pickup / Feed System

    2. Technical Explanation Pickup / Feed System Overview The Pickup / Feed System is responsible for paper pickup and delivery, made up with multiple rollers. The figure below shows the structure of the Pickup/Feed System schematically. Face-down Delivery Duplexing Feeding MP Tray Pickup Cassette Pickup...

  • Page 53: Drive Configuration

    2. Technical Explanation Drive Configuration SR15 SR10 SR14 SR12 SR13 Symbol Name Symbol Name Drum Motor SR1: Paper feeder pre-registration sensor Registration Motor SR4: Registration sensor Fixing Motor SR7: MP tray pre-registration sensor Pickup Motor SR8: Fixing delivery sensor SL1: MP Tray Pickup Solenoid SR10: Fixing arch sensor...
  • Page 54 2. Technical Explanation The figure below shows the multi-feeding prevention mechanism employed in this product. Pickup roller Media Separation roller Lifting plate The separation roller does not rotate. <Normal-feed> <Multiple-feed> ■ Jam detection ● Overview This product has the paper sensors as listed below to detect paper level and paper feed status. •...
  • Page 55 2. Technical Explanation ● Stationary jams Pickup stationary jam This occurs when the trailing edge of the paper is not detected by the registration sensor within the pre-defined duration after re-pickup. : SR4 Fixing / delivery stationary jam This occurs when the trailing edge of the paper is not detected by the fixing delivery sensor within the pre-defined duration after the trailing edge of the paper is detected by the registration sensor : SR4...

  • Page 56: Embedded Rds

    2. Technical Explanation Embedded RDS Product Overview ■ Overview Embedded RDS (hereinafter referred to as E-RDS) is a monitoring program that runs on the host machine. When the monitoring option is enabled by making the setting on this machine, information such as the status change of the machine, counter information, and failure information are collected.

  • Page 57: E-Rds Setup

    2. Technical Explanation E-RDS Setup ■ Confirmation and preparation in advance To monitor this machine with e-Maintenance/ imageWARE Remote, the following settings are required. ● Advance preparations The following network-related information needs to be obtained from the user's system administrator in advance. Information item 1 IP address settings •...
  • Page 58 2. Technical Explanation 4. Press the numeric key [1] on the control panel (the setting value is changed to 1) and touch the [Apply]. CAUTION: The following settings i.e. RGW-PORT in Service mode must not be change unless there are specific instructions to do so. Changing these values will cause error in communication with UGW.

  • Page 59: Faq

    2. Technical Explanation 2. Select [COPIER] > [FUNCTION] > [MISC-P] > [ERDS-LOG] and touch the [Yes]. Output sample Q: In what case does a communication test with UGW fail? Ans. The following cases can be considered in the becoming "NG" case. •...
  • Page 60 2. Technical Explanation Q: Although Microsoft ISA as a proxy server is introduced, the authentication check is failed. Can E- RDS adopt with Microsoft ISA? Ans. E-RDS must comply with "Basic" while "Integrated" authentication is used for Microsoft ISA (as default); therefore, authentication with E-RDS is available if you change the setting to "Basic"...

  • Page 61: Troubleshooting

    2. Technical Explanation Q: After the setting for E-RDS was made, the IP address of the host machine was changed. In that case, is it necessary to execute COM-TEST again? Ans. It is not necessary to execute COM-TEST again because the IP address used by E-RDS is automatically changed. However, it is necessary to turn OFF and then ON the main power of this machine to reflect the change in the setting of the IP address.

  • Page 62: Error Code And Strings

    2. Technical Explanation 2. Check the E-RDS setting values. • Check the communication error log from COM-LOG. • Check whether RGW-ADR or RGW-PORT settings has changed. If RGW-ADR or RGW-PORT settings has changed, restore initial values. For initial values, see “Service cautions”...
  • Page 63 2. Technical Explanation Code Character strings Cause Remedy 0xxx 0003 Server schedule is not exist Blank schedule data have been Perform and complete a communication test received from UGW. (COM-TEST). 0xxx 0003 Communication test is not per- Communication test has not Perform and complete a communication test formed completed.
  • Page 64 2. Technical Explanation Code Character strings Cause Remedy 8xxx 2002 URL server specified is illegal A URL different to that specified Check that the value of URL of UGW (RGW- by the UGW has been set. ADR) is https://a01.ugwdevice.net/ugw/agen- tif010. 8xxx 2003 Network is not ready, try later Communication attempted with- Check the network connection, as per the initial...
  • Page 65 2. Technical Explanation Code Character strings Cause Remedy 8xxx 2047 Server response time out Due to network congestion, etc., If this error occurs when the communication the response from UGW does not test is being run or Service Browser is being set, come within the specified time.

  • Page 66: Setting Information Export/Import Function (Dcm)

    2. Technical Explanation Setting Information Export/Import Function (DCM) Function Overview This function (DCM: Device Configuration Management) is used to export/import setting value information in the host machine as a file (DCM file). The following setting information is exported/imported. • Setting information of [Settings/ Registration] •...
  • Page 67 2. Technical Explanation ● Export from and Import to a Different Device of the Same Model (Case B) In this use case, the exported setting information is copied to a different device of the same model. This enables efficient installation in the case of installing multiple devices of the same model at a time (for example, kitting). Import Export A different machine...

  • Page 68: Specifications

    2. Technical Explanation ■ Compatibility ● Compatibility of DCM Files Compatibility of DCM files differs depending on the export/import method as shown below. Exported from Imported to iR series not supporting iR series supporting DCM iR-ADV series Remote UI Via DCM Plug-in Remote UI/USB DCM Plug-in Remote UI/ USB iR series not supporting...
  • Page 69 2. Technical Explanation ● Encryption Password • It is necessary to set a password during the export process because data such as the password of the address book set by the user are encrypted when the DCM file is exported/imported. •...

  • Page 70: Limitations

    2. Technical Explanation ■ Specifications Related to Address Books ● Import of an Address Book • The address book is imported after the existing address book in the host machine has been cleared. • If an error occurs during import, the data is not returned to the state of data cleared before import. •...
  • Page 71 2. Technical Explanation If any of the following conditions is met, import/export is not executed. • A job exists. (If calibration is requested by the engine, import/export is executed, ignoring the calibration job.) • A firmware update is being performed. •...

  • Page 72: Procedure For Exporting/Importing Service Mode Setting Information

    2. Technical Explanation DCM support device USB memory device DCM file DCM file Settings/ DCM support Registration DCM file device DCM file Remote UI Service mode DCM file iW EMC/MC DCM support with DCM Plug-in iR-ADV DCM file Image of DCM file import •...
  • Page 73 2. Technical Explanation 2. Enter service mode, and execute the following service mode. • COPIER > FUNCTION > SYSTEM > EXPORT 3. The message shown below which is displayed during the process will disappear. When the display has returned to the original state, remove the USB flash drive.
  • Page 74 2. Technical Explanation SERVICE MODE DISPLAY COPIER PANEL-UP CLEAR FEEDER ADJUST LOGWRITE MISC-R FUNCTION IMPORT MISC-P TESTMODE OPTION EXPORT SYSTEM COUNTER VIFFNC SPLMAN 4. The message shown below which is displayed during the process will disappear. When the display has returned to the original state, remove the USB flash drive.
  • Page 75 2. Technical Explanation 3. The message shown below which is displayed during the process will disappear. When the display has returned to the original state, remove the USB flash drive. 4. Check that a setting information file (service.dcm) exists in the directory directly under the root of the USB flash drive.
  • Page 76 2. Technical Explanation ■ Procedure for Export/Import Using Remote UI ([System Management Settings] Menu) ● Procedure for Export Using Remote UI ([System Management Settings] Menu) Service mode setting information can be exported from the [System Management Settings] menu by setting the following service mode setting value to "1".
  • Page 77 2. Technical Explanation 5. Specify the settings for exporting, and click [Start Exporting]. Enter the encryption password and click [Start Exporting]. The menu options data will be exported. Address Book Select the check box to export the Address Book data. Settings/ Registration Select the check box to export the setting data of the menu options.
  • Page 78 2. Technical Explanation 7. Enter service mode, and set the following item to "0". • COPIER > OPTION > USER > SMD-EXPT TNRB-SW SCALL-SW SCALLCMP : 0 PC-MODE SMD-EXPT NOTE: The [SMD-EXPT] setting can be specified either from the Control Panel or from the remote UI. ●...
  • Page 79 2. Technical Explanation 4. Click[Import/Export] > [Import].
  • Page 80 2. Technical Explanation 5. Specify the settings for Importing, and click [Start Import]. Enter the encryption password and click [Start Import]. The menu options data will be Imported. [Browse..]button Click to select the file to import. Decryption Password Enter up to 32 alphanumeric characters for the password that was set when the file was exported. Address Book Select the check box to import the Address Book data.

  • Page 81: List Of Items Which Can Be Imported

    2. Technical Explanation 9. Enter service mode, and set the following item to "0". • COPIER > OPTION > USER > SMD-EXPT TNRB-SW SCALL-SW SCALLCMP : 0 PC-MODE SMD-EXPT NOTE: The [SMD-EXPT] setting can be specified either from the Control Panel or from the remote UI. List of Items Which Can Be Imported The following shows the items to be imported for this model.
  • Page 82 2. Technical Explanation Setting Information Case A Case B Case C Remote UI Language Brightness Invert Screen Colors Millimeter/Inch Entry Switch Gram/Pound Switch Message Display Time Scrolling Speed Cursor Movement Type English Keyboard Layout ● Timer Settings Setting Information Case A Case B Case C Date/Time Settings...
  • Page 83 2. Technical Explanation ● Fax Settings Setting Information Case A Case B Case C Basic Settings Register Unit Telephone Number Telephone Number Select Line Type Pulse Tone Off-Hook Alarm Communication Management Settings TX Start Speed RX Start Speed TX Function Settings Change Default Setting 2-Sided Original Resolution...
  • Page 84 2. Technical Explanation Setting Information Case A Case B Case C Print Images Store Images in Memory ● Scan Settings Setting Information Case A Case B Case C USB Memory Settings Change Default Settings Scan Size File Format Encryption Level Digital Signatures Density Original Orientation...
  • Page 85 2. Technical Explanation Setting Information Case A Case B Case C Density Original Orientation Original Type 2-Sided Original Sharpness Data Size Output File Image Settings YCbCr TX Gamma Value PDF (Compact) Image Quality Level Image Level in Text/Photo Mode or Photo Mode Image Level in Text Mode OCR (Text Searchable) Settings Smart Scan...
  • Page 86 2. Technical Explanation Setting Information Case A Case B Case C Apply to Graphics Apply to Images Compressed Image Output* Paper Save Orientation Font Number Point Size Pitch Form Lines Character Code Custom Paper Unit of Measure X dimension Y dimension Append CR to LF Enlarge A4 Print Width Halftones...
  • Page 87 2. Technical Explanation Setting Information Case A Case B Case C Job Timeout Job Timeout Pure Black Text Black Overprint RGB Source Profile CMYK Simulation Profile Use Grayscale Profile Output Profile Matching Method RGB Pure Black Process CMYK Pure Black Process Halftones Error Diffusion Resolution/Gradation...
  • Page 88 2. Technical Explanation ■ System Management Settings ● System Manager Information Settings Setting Information Case A Case B Case C System Manager ID and PIN System Manager ID System Manager PIN System Manager Name Device Information Settings Device Name Location Display Consumables Information (RUI/Toner Status) Display Consumables Purchase Button (RUI) Toner Status Settings...
  • Page 89 2. Technical Explanation Setting Information Case A Case B Case C DHCP Option Settings Acquire Host Name DNS Dynamic Update Acquire DNS Server Address Acquire Domain Name Acquire WINS Server Address Acquire SMTP Server Address Acquire POP Server Address IPv6 Settings Use IPv6 Use Stateless Address Use Manual Address...
  • Page 90 2. Technical Explanation Setting Information Case A Case B Case C Port Number Settings HTTP POP3 HTTP SMTP SNMP WSD Multicast Discovery Multicast Discovery MTU Size IPP Print Settings Use IPP Printing Use SSL Network Link Scan Settings Use Network Link Scan SNMP Settings Use SNTP Polling Interval...
  • Page 91 2. Technical Explanation Setting Information Case A Case B Case C Password POP RX POP Interval Setting up authentication before sending and encrypted communication with the server Use POP Authentication Before Sending Use APOP Authentication Use SMTP Authentication (SMTP AUTH) User Name Password Use SSL for SMTP...
  • Page 92 2. Technical Explanation Setting Information Case A Case B Case C WPA/WPA2 PSK Settings WPA/WPA2 Encryption Method Entry type WPA/WPA2 PSK WEP Settings WEP key length Key form WEP key 1 WEP key 2 WEP key 3 WEP key 4 Select WEP Key 802.11 Authentication Power Save Mode...
  • Page 93 2. Technical Explanation Setting Information Case A Case B Case C Inbound Filter Use Filter Default Policy Exception Address MAC Address Filter Outbound Filter Use Filter Default Policy Exception Address Inbound Filter Use Filter Default Policy Exception Address ● Restrict TX Function Setting Information Case A Case B...
  • Page 94 Display Job Log Use as USB Device Store to USB Memory Memory Media Print On/Off Enable Product Extended Survey Program Canon Mobile Scanning ON/OFF Google Cloud Print Settings Notify to Check Paper Settings Secure Print Settings Secured Print Secure Print Deletion Time...
  • Page 95 2. Technical Explanation Initial screen Large Middle Small Case A Case B Case C COPIER ADJUST VIFADJ ICL-HV COPIER ADJUST VIFADJ FU-TMP COPIER ADJUST SCNR SUB-S-Y0 COPIER ADJUST SCNR SUB-S-M0 COPIER ADJUST SCNR SUB-S-C0 COPIER ADJUST SCNR SUB-S-K0 COPIER ADJUST SCNR SUB-S-Y1 COPIER...
  • Page 96 2. Technical Explanation Initial screen Large Middle Small Case A Case B Case C COPIER OPTION BODY NS-LGN COPIER OPTION BODY SLPMODE COPIER OPTION BODY SDTM-DSP COPIER OPTION FNC-SW IMGCNTPR COPIER OPTION IMG-MCON TMIC-BK COPIER OPTION IMG-MCON TMIC-CMY SSSW SW01 * SSSW SW02 * SSSW...
  • Page 97 2. Technical Explanation Initial screen Large Middle Small Case A Case B Case C 015 * 016 * 017 * 018 * 019 * 020 * 021 * 022 * 023 * 024 * 025 * 026 * 027 * 029 * 049 * 051 *...
  • Page 98 2. Technical Explanation Initial screen Large Middle Small Case A Case B Case C BUSTONE4 002 * BUSTONE5 003 * BUSTONE6 004 * BUSTONE7 005 * BUSTONE8 006 * BUSTONE9 007 * BUSTONE10 008 * REORDRTN BIT * REORDRTN 001 * REORDRTN 002 * REORDRTN...
  • Page 99 2. Technical Explanation Initial screen Large Middle Small Case A Case B Case C SPECIALB SW22 * SPECIALB SW23 * SPECIALB SW24 * SPECIALB SW25 * SPECIALB SW26 * SPECIALB SW27 * SPECIALB SW28 * SPECIALB SW29 * SPECIALB SW30 * SPECIALN 004 * SPECIALN...
  • Page 100 2. Technical Explanation Initial screen Large Middle Small Case A Case B Case C TESTMODE PBXBUSYT 004 * TESTMODE PBXBUSYT 005 * TESTMODE PBXBUSYT 006 * TESTMODE PBXBUSYT 007 * TESTMODE PBXBUSYT 008 * * : FAX model only...

  • Page 101: Periodical Service

    Periodical Service Periodically Replaced Parts....94 Durable Parts........95 Periodical Services......96 Cleaning..........97...

  • Page 102: Periodically Replaced Parts

    3. Periodical Service Periodically Replaced Parts No periodically replaced parts is set for this product.

  • Page 103: Durable Parts

    3. Periodical Service Durable Parts No durable parts is set for this product.

  • Page 104: Periodical Services

    3. Periodical Service Periodical Services No periodical service is set for this product.

  • Page 105: Cleaning

    3. Periodical Service Cleaning Cleaning parts Procedure Fixing front guide Clean with lint-free paper. For heavy soils, use alcohol to wipe off with lint- free paper. Laser beam window glass Clean with lint-free paper. Multi-purpose tray separation pad Clean with lint-free paper. For heavy soils, use alcohol to wipe off with lint- free paper.

  • Page 106: Disassembly/Assembly

    Disassembly/ Assembly List of Parts......... 99 External Cover, Internal Cover..116 External Cover, Internal Cover Disassembly/Assembly Procedure ............118 Document Exposure, Feed System.. 128 Document Exposure, Feed System Disassembly/Assembly Procedure ............130 Controller System......154 Controller System Disassembly/ Assembly Procedure..... 157 Laser Exposure System....184 Laser Exposure System Disassembly/ Assembly Procedure.....

  • Page 107: List Of Parts

    4. Disassembly/Assembly List of Parts List of External / Internal Cover ■ Front Side [12] [13] [19] [11] [10] [18] [14] [15] [17] [16] Parts Name Remarks Reference ADF Front Upper Cover ADF Upper Cover Side Guide (Front) Side Guide (Rear) Document Tray Extension Tray Sub Tray...
  • Page 108 4. Disassembly/Assembly ■ Rear Side [10] Parts Name Remarks Reference ADF Rear Cover Rear Upper Cover “Removing the Rear Upper Cover” on page 123 Rear Cover “Removing the Rear Cover” on page 123 Rear Lower Cover “Removing the Rear Lower Cover” on page 123 Power Socket Telephone Line Jack MF728Cdw / 727Cdw / 726Cdw /...

  • Page 109: List Of Main Unit

    4. Disassembly/Assembly List of Main Unit ■ 1/2 Parts Name Reference Adjastment during parts replace- marks ment ADF Unit “Separating the ADF Unit + Reader Unit” “After Replacing the ADF Units” on page on page 131 Reader Unit “Separating the ADF Unit + Reader Unit” “After Replacing the Reader Unit”...
  • Page 110 4. Disassembly/Assembly ■ 2/2 [12] [13] [10] [11] [14] [15] Parts Name Remarks Reference Adjastment during parts re- placement Fixing Assembly “Removing the Fixing Assembly” on page 200 [10] Laser Scanner Unit “Removing the Laser Scanner Unit” on page “After Replacing the Laser Scanner Unit”...

  • Page 111: List Of Motor / Fan

    4. Disassembly/Assembly List of Motor / Fan M721 M720 Parts Name Main Unit Remarks Reference Adjastment during parts replacement FM1 Fixing /Fixing Power Supply Product configuration - “Removing the Fixing/Fixing Cooling Fan Power Supply Cooling Fan Unit” on page 180 FM2 Duplex Feeding Fan Rear Cover Rib Unit “Removing the Duplex Feed-...

  • Page 112: List Of Clutch / Solenoid / Heater / Thermistor / Switch / Speaker

    4. Disassembly/Assembly List of Clutch / Solenoid / Heater / Thermistor / Switch / Speaker TH803 TH801 MF728Cdw /724Cdw H120 /H220 TH802 MF727Cdw /726Cdw /725Cdn Parts Name Main Unit Remarks Reference Adjastment during parts replacement H120 Fixing heater Fixing Film Unit 120V H220 Fixing heater Fixing Film Unit...

  • Page 113: List Of Sensor

    4. Disassembly/Assembly List of Sensor PS702 SR15 PS703 PS701 SR13 SR10 PCB30 SR14 SR12 PCB29 SR16 PCB28 Parts Name Main Unit Remarks Refer- Adjastment dur- ence ing parts replace- ment PCB28 Environment Sensor Product configuration PCB29 Patch Sensor Patch Density/Registration Sensor Unit PCB30 Patch Registration Sensor Patch Density/Registration Sensor...

  • Page 114: Pcb

    4. Disassembly/Assembly UN13 UN23 UN17 UN15 Parts Name Main Unit Remarks Reference Adjastment during parts replacement UN1 DC Controller PCB Product configuration - “Removing the DC Control- “Before Replacing the DC ler PCB” on page 162 Controller PCB” on page “After Replacing the DC Controller PCB”...
  • Page 115 4. Disassembly/Assembly UN16 UN14 UN20 UN10 Parts Name Main Unit Remarks Reference Adjastment dur- ing parts replace- ment UN2 Driver PCB Product configuration “Removing the Driver PCB” on page 167 UN6 Fixing Relay PCB Product configuration UN7 Fixing Sub PCB Product configuration “Removing the Fixing Sub PCB”...

  • Page 116: List Of Connector

    4. Disassembly/Assembly List of Connector ■ 1/5 J918 J929 J9211 MF727Cdw MF728Cdw /726Cdw /724Cdw /725Cdn J392 J393 J1301 J393 J1391 J651 J387 J942 J301 J388 J941 J386 J2001 J2009 J386 J388 J383 J312 J311 J301 J No. Symbol Name Relay connector J No.
  • Page 117 4. Disassembly/Assembly J No. Symbol Name Relay connector J No. Symbol Name Remarks J929 UN13 Main Controller PCB J392 Main Power Switch MF728Cdw / 724Cdw J918 UN13 Main Controller PCB J941 UN16 FAX-NCU PCB MF728Cdw / 727Cdw / 726Cdw / 725Cdn J921 UN13...
  • Page 118 4. Disassembly/Assembly J No. Symbol Name Relay connector J No. Symbol Name marks J151 DC Controller PCB J361 Low Voltage Sub PCB J151 DC Controller PCB J362 Low Voltage Sub PCB J153 DC Controller PCB J3015 PCB28 Environment Sensor J161 Relay PCB J601 PCB29...
  • Page 119 4. Disassembly/Assembly ■ 3/5 J904 J903 J1003 J902 J908 J1305 J922 J1302 J922 J1404 J1312 J972 J1402 J3009 J3006 J654 J154 J154 J156 J3010 J133 J141 J160 J162 J167 J1001 Symbol Name Relay connector J No. Symbol Name Remarks J133 UN1 DC Controller PCB J1001 High Voltage Power Supply...
  • Page 120 4. Disassembly/Assembly Symbol Name Relay connector J No. Symbol Name Remarks J904 UN13 Main Controller PCB J1401 J1404 PS701 CIS Unit Homeposition Sensor J922 UN13 Main Controller PCB J922 Speaker MF728Cdw / 727Cdw / 726Cdw / 725Cdn J902 UN13 Main Controller PCB J1003 J1003 ADF Pickup Solenoid...
  • Page 121 4. Disassembly/Assembly J No. Symbol Name Relay connector J No. Symbol Name marks J206 Driver PCB J206 Fixing/Fixing Power Supply Cooling Fan J207 Driver PCB J207 Cassette Pickup Solenoid J208 Driver PCB J208 MP Tray Feeding Clutch J209 Driver PCB J209 MP Tray Pickup Solenoid J210...
  • Page 122 4. Disassembly/Assembly ■ 5/5 J4001 J924 J703 J150 J704 J157 J131 J152 J132 J709 J501 J4018 J707 J706 J2007 J951 J708 J710 J956 J709 J961 J3014 J3012 J3013 J705 J704 J703 J705 J701 J No. Sym- Name Relay con- J No. Symbol Name Remarks...
  • Page 123 4. Disassembly/Assembly J No. Sym- Name Relay con- J No. Symbol Name Remarks nector J710 Fixing Relay PCB J301 Fixing Pressure Release Sensor J710 Fixing Relay PCB J301 Fixing Delivery Sensor J924 UN13 Main Controller PCB J951 UN14 Control Panel NFC PCB J961 UN20 NFC PCB...

  • Page 124: External Cover, Internal Cover

    4. Disassembly/Assembly External Cover, Internal Cover Location ■ Front Side [12] [13] [19] [11] [10] [18] [14] [15] [17] [16] Parts Name Remarks Reference ADF Front Upper Cover ADF Upper Cover Side Guide (Front) Side Guide (Rear) Document Tray Extension Tray Sub Tray Delivery Tray Right Cover...
  • Page 125 4. Disassembly/Assembly ■ Rear Side [10] Parts Name Remarks Reference ADF Rear Cover Rear Upper Cover “Removing the Rear Upper Cover” on page 123 Rear Cover “Removing the Rear Cover” on page 123 Rear Lower Cover “Removing the Rear Lower Cover” on page 123 Power Socket Telephone Line Jack MF728Cdw /...

  • Page 126: External Cover, Internal Cover Disassembly/Assembly Procedure

    4. Disassembly/Assembly directly upward with your finger on the [A] part of the External Cover, Internal Cover Left Cover. Disassembly/Assembly CAUTION: Procedure Do not open [A] part of the Left Cover in the direction of the arrow when removing the Left Cover; otherwise, the projection [1] of the Left Cover can be damaged/ Removing the Left Cover broken.
  • Page 127 4. Disassembly/Assembly 6. Release the hook [2] and remove the Left Cover [1] 3. Insert the claw [3] of the Left Cover to the groove [4] while opening the rear of the Left Cover [1]. of the Upper Cover to match the Left Cover to the machine.

  • Page 128: Removing The Right Cover

    4. Disassembly/Assembly ■ Installing the Right Cover 4. Install the Left Cover [1]. • 1 Claw [2] • 8 Hooks [3] 1. Fit the 3 hooks [2] of the Right Cover into the holes • 2 Screws [4] [3] of the Upper Cover. Removing the Right Cover 2.

  • Page 129: Removing The Right

    4. Disassembly/Assembly 3. Install the 3 hooks [1] at the left side of the Right 4. Remove the 2 screws [2]. Cover and the 3 holes [2] of the Right Front Cover. 5. Remove the claw [1] at the lower right side of the Right Front Cover.

  • Page 130: Removing The Front Cover

    4. Disassembly/Assembly 2. Remove the 2 pins [1] using a screwdriver. Removing the Front Cover ■ Preparation 1. Remove the Cartridge Tray.(Refer to “Removing the Cartridge Tray” on page 127) 2. Remove the Right Cover.(Refer to “Removing the Right Cover” on page 120) 3.

  • Page 131: Removing The Rear Upper Cover

    4. Disassembly/Assembly Removing the Rear Upper Removing the Rear Cover Cover ■ Procedure ■ Preparation 1. Open the Rear Cover [1]. 1. Remove the Right Cover.(Refer to “Removing the 2. Close the Duplex Feed Unit [2]. Right Cover” on page 120) 2.
  • Page 132 4. Disassembly/Assembly ■ Procedure 3. Close the Duplex Feed Unit [1]. 1. Remove the arm [1]. • 2 link caps [2] 4. Move the Rear Lower Cover [1] aside from the [A] part of the Duplex Reverse Drive Unit [2]. 5.

  • Page 133: Removing The Rear Cover Rib Unit

    4. Disassembly/Assembly ■ Procedure Removing the Rear Cover Rib Unit 1. Remove the Rear Cover Rib Unit [1]. • 2 bearing holders [2] ■ Preparation • 1 fixing guide [3] • 1 connector [4] 1. Remove the Right Cover.(Refer to “Removing the Right Cover”...
  • Page 134 4. Disassembly/Assembly 4. Remove the ADF Unit + Reader Unit.(Refer to 2. Remove 6 screws [1]. “Removing the ADF Unit + Reader Unit” on page 130) 5. Remove the Rear Upper Cover.(Refer to “Removing the Rear Upper Cover” on page 123) ■...

  • Page 135: Removing The Cartridge Tray

    4. Disassembly/Assembly 5. Remove the Upper Cover [1]. 4. While raising the stopper [1], remove the Cartridge Tray [2]. • 3 Hooks [2] • 1 Protrusion [3] Removing the Cartridge Tray ■ Procedure CAUTION: When removing the Toner Cartridge, be careful not to damage the Photosensitive Drum.

  • Page 136: Document Exposure, Feed System

    4. Disassembly/Assembly Document Exposure, Feed System Location [12] [11] [10] Parts Name Main Unit Reference Adjastment during parts mark replacement [1] ADF Unit Product Configuration “Removing the ADF Unit + Reader “After Replacing the ADF Unit” on page 130 Units” on page 132 [2] ADF Paper Feeder Unit ADF Unit “Removing the ADF Pickup Feed...
  • Page 137 4. Disassembly/Assembly Parts Name Main Unit Reference Adjastment during parts mark replacement [11] Reader Unit Upper Cover Reader Unit “Removing the Reader Unit Upper “After Replacing the Reader Cover” on page 144 Upper Cover Unit” on page [12] Scoopup sheet holder Reader Unit “Removing the Scoopup sheet “After Replacing the Scoopup...

  • Page 138: Document Exposure, Feed System Disassembly/Assembly Procedure

    4. Disassembly/Assembly 4. Bring down the Reader Support Shaft [1] to close the Document Exposure, Feed ADF Unit +Reader Unit [2]. System Disassembly/ Assembly Procedure Removing the ADF Unit + Reader Unit ■ Preparation 1. Remove the Right Cover.(Refer to “Removing the Right Cover”...

  • Page 139: Separating The Adf Unit + Reader Unit

    4. Disassembly/Assembly 3. Remove the ADF Unit + Reader Unit.(Refer to CAUTION: “Removing the ADF Unit + Reader Unit” on page When connecting the Flat Cable, be sure to perform 130) the following; while pushing the Flat Cable [1] against the connector with a lock [2], check that the line on the ■...
  • Page 140 • In COPIER > ADJUST > CCD > DFTAR-BW, set "315". 2. Place a sheet of A4 or LTR blank paper (paper recommended by Canon) on the Platen Glass of the reader, and execute • COPIER > FUNCTION > CCD > DF-WLVL1 (White level adj in book mode (color)) 3.
  • Page 141 4. Disassembly/Assembly 4. Place a sheet of A4 or LTR blank paper (paper 2. ADF geometric adjustment recommended by Canon) on the Platen Glass of 1. On an image copied using the ADF, check the non- the reader again, and execute image width in the X and Y directions and the •...
  • Page 142 4. Disassembly/Assembly 4. How to judge whether the operation was successful NOTE: or failed The value of W-PLT-X: The first four digits of the value on Whether the operation was successful or failed is the label not shown on the UI, so perform the following The value of W-PLT-Y: The four digits in the middle of the procedure to judge if the operation was successful value on the label...
  • Page 143 (Adjustment of shading target value (B&W) at 2. Place a sheet of A4 or LTR blank paper (paper ADF reading) recommended by Canon) on the Platen Glass of If the value remains the same as the value you the reader, and execute entered, the operation result is judged to be •...

  • Page 144: Removing The Adf Roller Unit

    4. Disassembly/Assembly 8. PASCAL adjustment 1. Open the ADF Upper Cover [1]. Enter the values shown on the label that comes with the part in the following service mode items. Enter the values of OFST-P-Y, OFST-P-M, OFST-P-C, and OFST-P-K in the following service mode, and write the entered values on the service label.

  • Page 145: Removing The Adf Pickup Roller

    4. Disassembly/Assembly 4. Remove the ADF Roller Unit [1]. CAUTION: • 1 plastic E-ring [2] Be sure to put the Sensor Flag [1] above the ADF Roller • 1 bushing [3] Unit [2] at installation work. CAUTION: Be careful not to lose the spring [1] attached to the ADF Roller Unit.

  • Page 146: Removing The Adf Separation Roller

    4. Disassembly/Assembly 1. Insert the end of the flat-blade screwdriver into the 2. Slide the Roller Shaft [1] to remove the parallel pin [A] part to remove the ADF Pickup Roller Unit [1]. [2] and the bushing [3]. CAUTION: Be careful not to lose the parallel pin [2] at assembly/ disassembly.
  • Page 147 4. Disassembly/Assembly 1. Open the ADF Upper Cover [1]. 4. Remove the Separation Pad Holder [1]. 2. Remove the Feed Guide [1]. CAUTION: • 2 Bosses [2] Be careful not to lose the Spring [1] on the Separation Pad Holder. 5.

  • Page 148: Removing The Adf Pickup Feed Unit

    4. Disassembly/Assembly 3. Lift the ADF Tray [1] until it stops and release the Removing the ADF Pickup hook [2] to tip the tray into the perpendicular Feed Unit position and remove by pulling upward. ■ Procedure 1. Open the ADF Upper Cover [1]. 2.

  • Page 149: Removing The Adf Pickup Motor

    4. Disassembly/Assembly 5. Remove the harness [1] and the grounding cord [2]. 7. Close the ADF Upper Cover [1] to remove the ADF Pickup Feed Unit [2]. • 1 screw (binding) [3] • 4 connectors [4] • 2 Harness Guide [5] 8.

  • Page 150: Removing The Scoopup Sheet Holder

    4. Disassembly/Assembly 1. Remove the ADF Motor [1] in the direction of the CAUTION: arrow. When installing the ADF Pickup Motor, be sure to install • 2 screws [2] with the connector [1] on the right side. • 1 belt [3] CAUTION: When installing the ADF Pickup Motor, be sure to hook the gear [1] of the motor on the belt [2].
  • Page 151 • In COPIER > ADJUST > CCD > DFTAR-BW, set "315". 2. Place a sheet of A4 or LTR blank paper (paper recommended by Canon) on the Platen Glass of the reader, and execute • COPIER > FUNCTION > CCD > DF-WLVL1 (White level adj in book mode (color)) 3.

  • Page 152: Removing The Reader Unit Upper Cover

    4. Disassembly/Assembly ■ Procedure 7. Whether the operation was successful or failed is not shown on the UI, so perform the following procedure to judge if the operation is successful or CAUTION: not. Be sure to perform "After Replacing the Reader Upper •...
  • Page 153 4. Disassembly/Assembly ■ After Replacing the Reader Upper 2. Adjust the white level in the following service mode. • COPIER > FUNCTION > CCD > BW-AGC Cover Unit (CIS intensity adjustment in ADF (B&W)) • COPIER > FUNCTION > CCD > CL-AGC (CIS 1.

  • Page 154: Removing The Cis Unit

    (Adjustment of shading target value (B&W) at 2. Place a sheet of A4 or LTR blank paper (paper ADF reading) recommended by Canon) on the Platen Glass of If the value remains the same as the value you the reader, and execute entered, the operation result is judged to be •...
  • Page 155 4. Disassembly/Assembly 3. Remove the ADF Unit + Reader Unit.(Refer to 3. Remove the CIS Unit Mount [1] and remove the flat “Removing the ADF Unit + Reader Unit” on page cable [2]. 130) • 1 guide [3] 4. Separate the ADF Unit from the Reader Unit.(Refer “Separating the ADF Unit + Reader Unit”...
  • Page 156 4. Disassembly/Assembly 4. Bring up the CIS Unit [1] to remove in the direction CAUTION: of the arrow. When the CIS Spacers are mixed up or lost, check the CIS Rank Label [3] to use, and use the appropriate CIS Spacer that fits the rank of the CIS Unit.
  • Page 157 4. Disassembly/Assembly ■ After replacing CIS units 4. How to judge whether the operation was successful or failed Whether the operation was successful or failed is 1. AGC adjustment not shown on the UI, so perform the following 1. Entering a provisional value procedure to judge if the operation was successful Change the foregoing values to "1,000".
  • Page 158 (Adjustment of shading target value (B&W) at 2. Place a sheet of A4 or LTR blank paper (paper ADF reading) recommended by Canon) on the Platen Glass of If the value remains the same as the value you the reader, and execute entered, the operation result is judged to be •...

  • Page 159: Removing The Reader Scanner Motor

    4. Disassembly/Assembly 5. ADF geometric adjustment ■ Procedure 1. On an image copied using the ADF, check the non- image width in the X and Y directions and the 1. Free the harness [2] while holding the Reader Unit expansion/contraction in the X direction. [1].
  • Page 160 4. Disassembly/Assembly 3. Loosen the screw [3] and move the Pulley Holder [4] 5. Remove the Shaft Retaining Plate [1]. in the direction of the arrow to remove the Drive Belt • 1 screw [2] [1]. 6. Move the Sensor Mount [1]. •...
  • Page 161 4. Disassembly/Assembly 7. Move the Motor Mounting Plate [1] and turn it over. • 2 screws [2] • 1 Grounding Plate [3] 8. Pass the connector [1] through the hole [A]. 9. Remove the Reader Scanner Motor [3] from the Motor Mounting Plate [2].

  • Page 162: Controller System

    4. Disassembly/Assembly Controller System Location ■ 1/2 [10] Parts Name Main Unit Remarks Reference Adjastment during parts replacement [1] Fixing Sub PCB Product Configura- “Removing the Fixing Sub PCB” on tion page 166 [2] Main Controller Support Product Configura- “Removing the Main Controller Sup- Plate tion port Plate”...
  • Page 163 4. Disassembly/Assembly Parts Name Main Unit Remarks Reference Adjastment during parts replacement [8] NFC PCB Control Panel Unit MF727Cdw / “Removing the NFC PCB 726Cdw : UN20 (MF727Cdw / 726Cdw)” on page [9] Fixing/Fixing Power Sup- Product Configura- “Removing the Fixing/Fixing Power ply Cooling Fan tion Supply Cooling Fan Unit”...
  • Page 164 4. Disassembly/Assembly Parts Name Main Unit Remarks Reference Adjastment during parts re- placement [19] High Voltage Power Product Con- “Removing the High Voltage Power Supply PCB figuration Supply PCB” on page 163...

  • Page 165: Controller System Disassembly/Assembly Procedure

    4. Disassembly/Assembly ■ Procedure Controller System Disassembly/Assembly 1. Remove the Wireless LAN PCB [1]. • 1 Screw [2] Procedure • 1 Flat Cable [3] Removing the Controller Cover ■ Preparation 1. Removing the Right Cover.(Refer to “Removing the Right Cover” on page 120) ■...
  • Page 166 4. Disassembly/Assembly 1. Enter service mode, and set the following item to "1". 4. Enter service mode, and set the following item to "0". • COPIER > OPTION > USER > SMD-EXPT • COPIER > OPTION > USER > SMD-EXPT TNRB-SW TNRB-SW SCALL-SW...
  • Page 167 4. Disassembly/Assembly ■ Procedure CAUTION: When connecting the Flat Cable, be sure to perform 1. Remove the Main Controller PCB [1]. the following; while pushing the Flat Cable [1] against • 1 Flat Cable Connector Lock [2] the connector with a lock [2], check that the line on the •...
  • Page 168 4. Disassembly/Assembly 3. AGC adjustment 4. How to judge whether the operation was successful or failed 1. Entering a provisional value Whether the operation was successful or failed is Change the foregoing values to "1,000". not shown on the UI, so perform the following •...

  • Page 169: Removing The Main Controller Support Plate

    4. Disassembly/Assembly 5. Migrating the serial number 7. Reinstall the drivers. 1. Enter the serial number (8-digit alphanumeric) in 1. Uninstalling Old Drivers. Settings/Registration > System Settings > Device • Printer Driver Information > Location. • FAX Driver 2. Execute the following service mode, and write the •...

  • Page 170: Removing The Dc Controller Pcb

    4. Disassembly/Assembly 2. Removing the Controller Cover.(Refer to “Removing ■ Preparation the Controller Cover” on page 157) 1. Removing the Right Cover.(Refer to “Removing the 3. Removing the Wireless LAN PCB.(MF728Cdw / Right Cover” on page 120) 727Cdw / 724Cdw only) (Refer to “Removing the Wireless LAN PCB (MF728Cdw / 727Cdw / 724Cdw)”...

  • Page 171: Removing The High Voltage Power Supply Pcb

    4. Disassembly/Assembly 3. Remove the DC Controller PCB [1]. 5. Removing the Right Front Cover.(Refer to “Removing the Right Front Cover” on page 121) • 8 connectors [2] • 5 screws [3] 6. Removing the Upper Cover.(Refer to “Removing the Upper Cover”...
  • Page 172 4. Disassembly/Assembly 4. Remove the 6 screws [1] and disconnect the 5. Remove the High Voltage Power Supply PCB [1]. connector [2]. • 9 claws [2] CAUTION: When installing the High-voltage Power PCB [1] to the host machine, make sure that the contact spring [3] is connected from the 18 round holes [2].

  • Page 173: Removing The Low Voltage Unit

    4. Disassembly/Assembly 3. Slide and open the Power Supply Unit [1] in the Removing the Low Voltage direction of the arrow. Unit • 6 Screws [2] • 1 Screw [3] (Toothed washer screw) • 2 Claws [4] ■ Preparation 1. Removing the Right Cover.(Refer to “Removing the Right Cover”...

  • Page 174: Removing The Fixing Sub Pcb

    4. Disassembly/Assembly 5. Remove the Low Voltage Unit [1] ■ Procedure • 3 connectors [2] 1. Remove the PCB Fixation Plate [1] (FAX model only). • 2 Screws [2] 2. Remove the wire harness [1], and remove the wire harness guide [2]. •...

  • Page 175: Removing The Driver Pcb

    4. Disassembly/Assembly 3. Remove the Fixing Sub PCB [1]. ■ Procedure • 1 screw [2] • 1 connector [3] 1. Remove the flat cable guide case [1]. • 1 screw [2] • 2 claws [3] Removing the Driver PCB ■ Preparation 1.

  • Page 176: Removing The Relay Pcb

    4. Disassembly/Assembly 2. Remove the Driver PCB [1]. 5. Removing the Right Front Cover.(Refer to “Removing the Right Front Cover” on page 121) • 11 connectors [2] • 1 flat cable [3] 6. Removing the Upper Cover.(Refer to “Removing the •...

  • Page 177: Removing The Control Panel Unit

    4. Disassembly/Assembly 3. Remove the Relay PCB [1]. 3. Bring down the Reader Support Shaft [4] to close the ADF Unit/Copyboard + Reader Unit [3]. • 1 screw [2] • 1 harness guide [3] • 1 protrusions [4] Removing the Control Panel 4.
  • Page 178 4. Disassembly/Assembly 5. Open the ADF Unit/Copyboard [1] and place a sheet CAUTION: of paper [2] on the copyboard. Do not touch the IC part [A] of the LCD Flat Cable [1]. 6. Shift the Control Panel Unit [1], and disconnect the Faston Connector [2].

  • Page 179: Removing The Nfc Pcb (Mf727Cdw / 726Cdw)

    4. Disassembly/Assembly 1. Remove the NFC PCB [1]. CAUTION: • 1 Connector [2] When connecting the Flat Cable, be sure to perform • 1 Screws [3] the following; while pushing the Flat Cable [1] against the connector with a lock [2], check that the line on the edge [A] of the Flat Cable Connector and the line on the edge [B] of the Flat Cable Connector Lock are parallel, and then close the Flat Cable Connector Lock...

  • Page 180: Removing The Off Hook Pcb (Mf728Cdw / 727Cdw / 725Cdn)

    4. Disassembly/Assembly Removing the Off Hook PCB Removing the Main Drive Unit (MF728Cdw / 727Cdw / 725Cdn) ■ Preparation ■ Preparation 1. Removing the Right Cover.(Refer to “Removing the Right Cover” on page 120) 1. Removing the Right Cover.(Refer to “Removing the Right Cover”...
  • Page 181 4. Disassembly/Assembly 20. Removing the Off Hook PCB.(MF728Cdw / 727Cdw / 2. Free the harness [1]. 725Cdn only) (Refer to “Removing the Off Hook PCB • 4 Harness Guides [A] (MF728Cdw / 727Cdw / 725Cdn)” on page 172) ■ Procedure 1.
  • Page 182 4. Disassembly/Assembly 6. Remove the Harness Guide and Power Auxiliary Plate [1]. • 2 Screws [2] 5. Free the harness [1] extruding out of the rear side [B] and [C] of the machine from the Harness Guide [A].
  • Page 183 4. Disassembly/Assembly 7. Remove the DC Controller Support Plate [1]. 8. Remove the Main Switch Unit [1]. • 1 Special Flat-head Screw [2] • 2 Screws [2] • 2 Black Screws [3] • 1 Hook [3] • 3 Screws [4] •...
  • Page 184 4. Disassembly/Assembly 10. Remove the Right Frame Supporting Plate [1]. 12. Remove the sheet [1]. • 3 Screws [2] • 3 Hooks [2] 13. Free the harness [1] and [2] from the Harness Guide [A] and [B]. 11. Remove the wire harness guide [1]. •...
  • Page 185 4. Disassembly/Assembly 14. Remove the Harness Guide [1]. 15. Remove the wire harness [1] from the wire harness guide [2], and remove the wire harness guide [2] in • Harness Guide [A] the arrow direction. • 2 Boss [2] • 2 Hooks [3] •...
  • Page 186 4. Disassembly/Assembly 16. Remove the wire harness [1], and remove the Drive NOTE: Unit [2]. The Main Drive Unit side needs to be in the following • 5 Fixing Guides [3] condition when installing the Main Drive Unit. • 1 Connector [4] •...

  • Page 187: Removing The Duplex Reverse Drive Unit

    4. Disassembly/Assembly Removing the Duplex Reverse NOTE: The host machine side needs to be in the following Drive Unit condition when installing the Main Drive Unit. • The direction of the joint [1] on the host machine side ■ Preparation is as shown in the figure below (at this time, the hole [A] of the plate and hole [B] of the joint [1] are aligned in a straight line).

  • Page 188: Removing The Fixing/Fixing Power Supply Cooling Fan Unit

    4. Disassembly/Assembly ■ Procedure CAUTION: Be sure to insert the 2 harnesses [1] at the bottom of 1. Remove the wire harness [1] from the wire harness the Guide [A] when installing. cover [2]. • 2 connectors [3] 2. Open [1] the Duplex Feed Unit, and remove the Duplex Reverse Drive Unit [2].

  • Page 189: Removing The Duplex Feeding Fan

    4. Disassembly/Assembly 2. Removing the Controller Cover.(Refer to “Removing 2. Remove the Fixing/Fixing Power Supply Cooling the Controller Cover” on page 157) Fan [1]. • 1 claw [2] 3. Removing the Wireless LAN PCB.(MF728Cdw / • 2 protrusions [3] 727Cdw / 724Cdw only) (Refer to “Removing the Wireless LAN PCB (MF728Cdw / 727Cdw / 724Cdw)”...
  • Page 190 4. Disassembly/Assembly 2. Removing the Left Cover.(Refer to “Removing the 3. Remove the fixing guide [1] and free the harness [2] Left Cover” on page 118) from the harness guide. • 3 fixing guides [3] 3. Removing the Rear Upper Cover.(Refer to “Removing the Rear Upper Cover”...

  • Page 191: Removing The Speaker (Mf728Cdw / 727Cdw / 725Cdn)

    4. Disassembly/Assembly 4. Remove the 2 claws [1] to remove the Duplex ■ Procedure Feeding Fan [2]. 1. Remove the Speaker [1]. • 1 connector [2] • 1 wire saddle [3] • 2 claws [4] CAUTION: When installing the Duplex Feeding Fan, be careful of the installation direction.

  • Page 192: Laser Exposure System

    4. Disassembly/Assembly Laser Exposure System Location Parts Name Main Unit Remarks Reference Adjastment during parts replace- ment [1] Laser Scanner Unit Product Config- “Removing the Laser Scanner “After Replacing the Laser Scanner Unit” uration Unit” on page 185 on page 188...

  • Page 193: Laser Exposure System Disassembly/Assembly Procedure

    4. Disassembly/Assembly Laser Exposure System CAUTION: The ITB Unit is under the Laser Scanner Unit. Ensure Disassembly/Assembly to close a Cartridge Tray when performing this Procedure procedure, because there is a possibility that the ITB Unit might be damaged when the Laser Scanner Unit is mistakenly dropped during installation/removal.
  • Page 194 4. Disassembly/Assembly 2. Remove the Harness Guide [1] and free the harness 3. Remove the Harness Guide [1]. [2] and the Flat Cable [3]. • 1 Screw [2] • 2 Flat Cables [4] • 1 Spring [3] • 5 Connectors [5] •...
  • Page 195 4. Disassembly/Assembly 6. Remove the Scanner Fixing Spring [3] on the left CAUTION: from the 1 hook [4]. Be sure to put the flag [1] of the Harness Guide through the hole [A] of the plate, and hook the spring [2] on the flag [3] of the Laser Scanner Unit when installing.
  • Page 196 4. Disassembly/Assembly 7. Remove the Scanner Fixing Spring [1] in the rear ■ After Replacing the Laser Scanner from 1 hook [2]. Unit 1. Register values indicated on the label packaged with the Laser Scanner Unit in the following service mode items.
  • Page 197 4. Disassembly/Assembly • COPIER > ADJUST > SCNR > MAI-S-C1 (Laser output correction value, horizontal scanning irradiation position1 C) • COPIER > ADJUST > SCNR > MAI-S-K1 (Laser output correction value, horizontal scanning irradiation position1 K) • COPIER > ADJUST > SCNR > MAI-S-Y2 (Laser output correction value, horizontal scanning irradiation position2 Y) •...

  • Page 198: Image Formation System

    4. Disassembly/Assembly Image Formation System Location Parts Name Main Unit Reference Adjastment dur- marks ing parts re- placement [1] ITB Unit Product Configuration - “Removing the ITB Unit” on page 191 [2] Drum Motor Main Drive Unit “Removing the Drum Motor” on page 196 [3] Developing Motor Main Drive Unit “Removing the Developing Motor”...

  • Page 199: Image Formation System Disassembly/Assembly Procedure

    4. Disassembly/Assembly 1. Pull out the Patch Density/Registration Sensor Unit Image Formation System [1] toward the front. Disassembly/Assembly • 2 Screws [2] • 2 Bosses [3] Procedure • 2 Protrusions [4] Removing the ITB Unit ■ Preparation 1. Removing the Cartridge Tray.(Refer to “Removing the Cartridge Tray”...
  • Page 200 4. Disassembly/Assembly 3. Lift the 2 parts [A] at the front side of the ITB Unit to 6. Slide the 2 parts [B] at the rear side of the ITB Unit release the 2 protrusions [1]. along the rails [3], and remove the ITB Unit [2] by pulling it out.

  • Page 201: Removing The Patch Density And Registration Sensor Unit

    4. Disassembly/Assembly ■ Procedure CAUTION: Be sure to install the harness [1] to the guide [A] of the ITB Unit when installing. CAUTION: Be sure not to touch the surface of the ITB and the Secondary Transfer Roller when disassembling/ assembling.
  • Page 202 4. Disassembly/Assembly 2. Move the Patch Density and Registration Sensor 4. Lift the 2 parts [A] at the front side of the ITB Unit to Unit [1]. release the 2 protrusions [1]. • 2 Screws [2] • 2 Bosses [3] •...

  • Page 203: Removing The Developing Motor

    4. Disassembly/Assembly ● Removing the Front Cover Link Arm 7. Removing the Upper Cover.(MF728Cdw / 727Cdw / 724Cdw only)(Refer to “Removing the Wireless LAN (Left) PCB (MF728Cdw / 727Cdw / 724Cdw)” on page 157) 1. Remove the Front Cover. (Refer to “Removing the 8.

  • Page 204: Removing The Drum Motor

    4. Disassembly/Assembly 2. Remove the wire harness guide [1]. Removing the Drum Motor • 1 claw [2] • 2 hooks [3] ■ Preparation 1. Removing the Right Cover.(Refer to “Removing the Right Cover” on page 120 2. Removing the Left Cover.(Refer to “Removing the Left Cover”...
  • Page 205 4. Disassembly/Assembly ■ Procedure 2. Remove the wire harness guide [1]. • 1 claw [2] 1. Remove the fixing guide [1] and the wire harness [2]. • 2 hooks [3] • 1 screw [3] • 11 connectors [4] 3. Remove the Drum Motor [1]. •...

  • Page 206: Removing The Secondary Transfer Outer Roller

    4. Disassembly/Assembly Removing the Secondary Transfer Outer Roller CAUTION: Secondary Transfer Outer Roller is included in Secondary Transfer FeedUnit so when replacing the Secondary Transfer Outer Roller, be sure toreplace the Secondary Transfer Feed Unit itself. (Refer to “Removing the Secondary Transfer Feed Unit” on page 219)

  • Page 207: Fixing System

    4. Disassembly/Assembly Fixing System Location Parts Name Main Unit Reference Adjastment during marks parts replacement [1] Fixing Assembly Product Con- “Removing the Fixing Assembly” on page 200 figuration [2] Fixing Motor Unit Product Con- “Removing the Fixing Motor Unit” on page 205 figuration [3] Fixing Pressure Roller Fixing Assem- “Removing the Fixing Pressure Roller”...

  • Page 208: Fixing System Disassembly/Assembly Procedure

    4. Disassembly/Assembly 1. Remove the claw [2] of the harness guide [1] and Fixing System Disassembly/ disconnect the connector [3]. Assembly Procedure Removing the Fixing Assembly ■ Preparation 1. Removing the Right Cover.(Refer to “Removing the Right Cover” on page 120) 2.

  • Page 209: Removing The Fixing Film Unit

    4. Disassembly/Assembly 2. Free the harness [1] from the harness guide [2]. 3. Remove the Fixing Assembly [1]. • 3 connectors [3] • 2 screws [2] • 2 fixing guides [4] • 1 wire saddle [5] Removing the Fixing Film Unit CAUTION: ■...
  • Page 210 4. Disassembly/Assembly ■ Procedure 2. Remove the gear [1], 2 Parallel Pins [2], E-Ring [3], cam [4], and bushing [5]. 1. Remove the 2 Pressure Springs [1] on the right and • 1 Claws [6] left and the 2 Pressure Plates [2]. •...
  • Page 211 4. Disassembly/Assembly 3. After sliding the shaft [1] to remove the Parallel Pins 4. While securing the harness [1] to the guide [A], [2] and the cam [3], remove the shaft [1] and the remove the harness [1] and the guide [2]. Sensor Flag [4].
  • Page 212 4. Disassembly/Assembly 7. Free the harness (green) [2] from the Harness Guide 8. Remove the harness [1] and the guide [2]. [A], [C] and [D]. • 1 Claws [3] • 2 Bosses [4] CAUTION: When installing/removing the Fixing Film Unit, be sure not to touch the Fixing Film [1].

  • Page 213: Removing The Fixing Pressure Roller

    4. Disassembly/Assembly 9. Remove the spring [1] and the Fixing Film Unit [2]. 9. Removing the Fixing Film Unit.(Refer to “Removing the Fixing Film Unit” on page 201) • 2 Hooks [3] • Harness Guide [A] ■ Procedure CAUTION: Be sure not to touch the surface of the Fixing Pressure Roller.
  • Page 214 4. Disassembly/Assembly 7. Removing the Fixing/Fixing Power Supply Cooling 2. Remove the Fixing Motor unit [1]. Fan Unit.(Refer to “Removing the Fixing/Fixing • 3 screws [2] Power Supply Cooling Fan Unit” on page 180) 8. Removing the Fixing Sub PCB.(Refer to “Removing the Fixing Sub PCB”...
  • Page 215 4. Disassembly/Assembly CAUTION: In installation, put the edge of the spring [1] and the projection [2] of the gear into the hole on the sheet metal.

  • Page 216: Pickup Feeder System

    4. Disassembly/Assembly Pickup Feeder System Location [10] [11] Parts Name Main Unit Reference Adjast- marks ment during parts re- place- ment [1] Cassette Separation Paper Pickup Unit “Removing the Cassette Separation Roller” on page Roller [2] Cassette Pickup Roller Paper Pickup Unit “Removing the Cassette Pickup Roller”...

  • Page 217: Pickup Feeder System Disassembly/Assembly Procedure

    4. Disassembly/Assembly 6. Place a host machine [1] as the Left Cover faces to Pickup Feeder System the bottom. Disassembly/Assembly CAUTION: Procedure When laying down the main body, be sure to secure the ADF Unit with tape to prevent from opening. In case that the ADF Unit is not secured with tape, when Removing the Cassette Pickup returning the main body to its original position, the ADF...

  • Page 218: Removing The Cassette Separation Roller

    4. Disassembly/Assembly 2. Make the Left Cover face down and place the host Removing the Cassette machine [1]. Separation Roller CAUTION: ■ Procedure When laying down the main body, be sure to secure the ADF Unit with tape to prevent from opening. In case that the ADF Unit is not secured with tape, CAUTION: when returning the main body to its original position,...

  • Page 219: Removing The Mp Tray Pickup Roller

    4. Disassembly/Assembly 4. Open the Holder [1] remove the Cassette Separation 2. Execute the following items in Service mode. Roller [2]. COPIER > FUNCTION > VIFFNC > FD-R-CHG • 2 Claws [3] 3. The Multi-purpose Tray Pickup Roller rotates to the •...

  • Page 220: Removing The Pickup Motor

    4. Disassembly/Assembly 1. Put a Screwdriver into the gap [2] between the MP 9. Removing the Main Controller Support Plate.(Refer Tray Separation Pad [1] and the Pad Holder. “Removing the Main Controller Support Plate” on page 161) 10. Removing the Fixing/Fixing Power Supply Cooling Fan Unit.(Refer to “Removing the Fixing/Fixing Power Supply Cooling Fan Unit”...

  • Page 221: Removing The Pickup Unit

    4. Disassembly/Assembly 2. Free the harness [1] and [2] from the Harness Guide 4. Remove the Pickup Motor [1]. [A] and [B]. • 2 Screws [2] • 1 Connector [3] Removing the Pickup Unit ■ Preparation 1. Removing the Right Cover.(Refer to “Removing the Right Cover”...
  • Page 222 4. Disassembly/Assembly ■ Procedure 1. Remove the wire harness [2] from the wire harness guide [1]. • 8 connectors [3] CAUTION: • 10 fixing guides [4] Be sure not to touch the Secondary Transfer Roller [1] and the ITB [2].
  • Page 223 4. Disassembly/Assembly 2. Free the harness [1] and [2] from the Harness Guide 4. Release 2 claws [1], and turn the guide [2] to align [A] and [B]. the hook [4] with the hole on the arm [3], and remove the arm [3].
  • Page 224 4. Disassembly/Assembly 5. Please the machine as the Left Cover faces to the 7. Remove the 2 arms [1] and the 2 springs [2]. bottom. • 2 Shafts [3] • 5 Hooks [4] 6. Remove the 2 stoppers [2]. • 2 Bosses [3]...
  • Page 225 4. Disassembly/Assembly 8. Put the harness [1] through the hole [A] of the Side 1. Open the Rear Cover [1], Put the harness [2] through Plate, and remove the Pickup Unit [2]. the hole [A] of the Side Plate, and Install the Pickup Unit [3] to the host machine.

  • Page 226: Removing The Mp Tray Pickup Unit

    4. Disassembly/Assembly 3. Place the Sensor Flag Cover [B] of the Pickup Unit 5. Align the 4 protrusions [1], and secure the Pickup over the plate [C] of the Roller Unit of the host Unit with the 6 screws [2]. machine.

  • Page 227: Removing The Secondary Transfer Feed Unit

    4. Disassembly/Assembly 3. Move the MP Tray Pickup Unit [1] in the direction of 5. Push a flat-blade screwdriver to the stopper [1] and the arrow. remove the MP Tray Pickup Unit [2] in the direction of the arrow. 4. Remove the 2 Links [1] (left and right) from the bushings [2] of the MP Tray Pickup Unit.

  • Page 228: Removing The Delivery Unit

    4. Disassembly/Assembly 2. Remove the Secondary Transfer Feed Unit [1]. 4. Removing the Rear Cover.(Refer to “Removing the Rear Cover” on page 123) • 1 screw [2] 5. Removing the Rear Lower Cover.(Refer to CAUTION: “Removing the Rear Lower Cover” on page 123) When removing the screw, be careful not to lose the 6.

  • Page 229: Removing The Duplex Feed Unit

    4. Disassembly/Assembly 2. Release the 2 claws [1], and disconnect the 4. Remove the Delivery Unit [1]. connector [2]. • 3 screws [2] Removing the Duplex Feed Unit ■ Preparation 1. Removing the Right Cover.(Refer to “Removing the Right Cover” on page 120) 3.

  • Page 230: Removing The Re-Pickup Guide Unit

    4. Disassembly/Assembly ■ Procedure Removing the Re-pickup Guide Unit 1. Shift the Duplex Feed Unit [1] in the direction of the arrow and remove the 2 bearings [2]. ■ Preparation 1. Removing the Right Cover.(Refer to “Removing the Right Cover” on page 120) 2.
  • Page 231 4. Disassembly/Assembly ■ Procedure 1. Remove the Re-pickup Guide Unit [1]. • 3 connectors [2] • 4 screws [3] CAUTION: Be sure to insert the 2 harnesses [1] at the bottom of the Guide [A] when installing.

  • Page 232: Adjustment

    Adjustment Overview........... 225 Adjustment at Parts Replacement..226...

  • Page 233: Overview

    5. Adjustment Overview Adjustment required in the field service works when following parts are replaced. The parts are classified by 3 function blocks. Category Parts Reference Document Exposure / ADF Units “After Replacing the ADF Units” on page 226 Feed System Reader Units “After Replacing the Reader Unit”...

  • Page 234: Adjustment At Parts Replacement

    • In COPIER > ADJUST > CCD > DFTAR-BW, set "315". 2. Place a sheet of A4 or LTR blank paper (paper recommended by Canon) on the Platen Glass of the reader, and execute • COPIER > FUNCTION > CCD > DF-WLVL1 (White level adj in book mode (color)) 3.
  • Page 235 5. Adjustment ■ After Replacing the Reader Unit 1. Release the 2 claws [1], remove the Scoop-up Sheet Holder [2], and check the setting values of the Standard White Plate indicated under the barcode that was hidden beneath the Scoop-up Sheet Holder. 2.
  • Page 236 • In COPIER > ADJUST > CCD > DFTAR-BW, set "315". 2. Place a sheet of A4 or LTR blank paper (paper recommended by Canon) on the Platen Glass of the reader, and execute • COPIER > FUNCTION > CCD > DF-WLVL1 (White level adj in book mode (color)) 3.
  • Page 237 5. Adjustment 8. If the operation result is "failed", turn OFF and then ON the power, execute • COPIER > FUNCTION > CCD > DF-WLVL1 (White level adj in book mode: color) and then execute • COPIER > FUNCTION > CCD > DF-WLVL2 (White level adj in ADF mode: color) again.
  • Page 238 5. Adjustment ■ After Replacing the Reader Upper Cover Unit 1. Enter the X, Y, and Z values indicated under the barcode on the Copyboard Glass in • COPIER > ADJUST > CCD > W-PLT-X (White level data (X) entry of white plate) , •...
  • Page 239 • In COPIER > ADJUST > CCD > DFTAR-BW, set "315". 2. Place a sheet of A4 or LTR blank paper (paper recommended by Canon) on the Platen Glass of the reader, and execute • COPIER > FUNCTION > CCD > DF-WLVL1 (White level adj in book mode (color)) 3.
  • Page 240 • In COPIER > ADJUST > CCD > DFTAR-BW, set "315". 2. Place a sheet of A4 or LTR blank paper (paper recommended by Canon) on the Platen Glass of the reader, and execute • COPIER > FUNCTION > CCD > DF-WLVL1 (White level adj in book mode (color)) 3.
  • Page 241 5. Adjustment 4. Place a sheet of A4 or LTR blank paper (paper recommended by Canon) on the Platen Glass of the reader again, and execute • COPIER > FUNCTION > CCD > DF-WLVL3 (White level adj in book mode (B&W)) 5.

  • Page 242: Controller System

    • In COPIER > ADJUST > CCD > DFTAR-BW, set "315". 2. Place a sheet of A4 or LTR blank paper (paper recommended by Canon) on the Platen Glass of the reader, and execute • COPIER > FUNCTION > CCD > DF-WLVL1 (White level adj in book mode (color)) 3.
  • Page 243 5. Adjustment 1. Enter service mode, and set the following item to "1". • COPIER > OPTION > USER > SMD-EXPT TNRB-SW SCALL-SW SCALLCMP : 0 PC-MODE SMD-EXPT NOTE: The [SMD-EXPT] setting can be specified either from the Control Panel or from the remote UI. 2.
  • Page 244 5. Adjustment 4. Enter service mode, and set the following item to "0". • COPIER > OPTION > USER > SMD-EXPT TNRB-SW SCALL-SW SCALLCMP : 0 PC-MODE SMD-EXPT NOTE: The [SMD-EXPT] setting can be specified either from the Control Panel or from the remote UI. ●...
  • Page 245 5. Adjustment 4. How to judge whether the operation was successful or failed Whether the operation was successful or failed is not shown on the UI, so perform the following procedure to judge if the operation was successful or failed. B&W mode •...
  • Page 246 5. Adjustment 7. Reinstall the drivers. 1. Uninstalling Old Drivers. • Printer Driver • FAX Driver • Scanner Driver • Network Scan Utility. (for machines with network connection) * As for the procedure, refer to "Uninstalling the Software" in the Starter Guide. 2.

  • Page 247: Laser Exposure System

    5. Adjustment Laser Exposure System ■ After Replacing the Laser Scanner Unit 1. Register values indicated on the label packaged with the Laser Scanner Unit in the following service mode items. • COPIER > ADJUST > SCNR > SUB-S-Y0 (Laser output correction value, vertical scanning irradiation position0 Y) •...

  • Page 248: Troubleshooting

    Troubleshooting Test Print...........241 Trouble shooting items......243 Version Upgrade....... 244 Debug Log ........248...

  • Page 249: Test Print

    6. Troubleshooting Test Print Engine test print The engine test print is to check normal operation of the device. Print the engine test chart in the following steps. 1. Detach the right cover (Refer to :“Removing the Right Cover” on page 120).
  • Page 250 6. Troubleshooting The data for test charts are created in the main controller. If no problem is found on the output test charts, the cause may lie in the PDL input or the reader. TYPE NO. Test chart type Purpose Pascal correction chart 1 For checking density characteristic (Error diffusion) Pascal correction chart 2...

  • Page 251: Trouble Shooting Items

    6. Troubleshooting Trouble shooting items Recurring faulty image Foreign matters or lines on rollers along the paper feed path may cause faulty images in the vertical scanning direction. Field action See the roller pitches listed in the tables below to clean and/or replace the corresponding parts. Roller pitch Parts about 44 mm...

  • Page 252: Version Upgrade

    6. Troubleshooting Version Upgrade Overview This machine supports the following two methods for upgrading the firmware. 1. User Support Tool (UST) 2. Via Internet Upgrading by UST Firm ware USB cable Firmware configuration Firmware Function Stored in Boot ROM Start the main controller. Main controller PCB Main Controller Control overall performance.

  • Page 253: Downloading System Software

    6. Troubleshooting 2. Connect the device to the PC with the USB cable. 3. Turn on the device on standby. 4. Press [Menu] key to upgrade firmware in User mode. System Management Settings > Update Firmware > Via PC The message, "Will you restart the device to upgrade firmware?", is shown on the display. Select [Yes]. 5.
  • Page 254 6. Troubleshooting 4. Select [USB Device] and click [Next] button. 5. Click [Start] button. 6. Click [Yes] button for the warning message to start download. 7. Click [OK] button when download is completed. 8. Turn off and on the power to restart the device. 9.

  • Page 255: Upgrading Via Internet

    6. Troubleshooting Upgrading via Internet ■ Overview Select to automatically install the firmware update without using a computer. ■ Preparation 1. Check that there are no other jobs being executed. 2. In an environment where access is obtained via a proxy server, the proxy setting is made from the remote UI. Settings/Registration >...

  • Page 256: Debug Log

    6. Troubleshooting Debug Log Function Overview The debug log is a log that analyzes the program behavior of the machine to enable developers to identify problems. This machine is embedded with a function that compiles the log of the behavior of each software module as debug log and outputs it as integrated log for analyzing problems.
  • Page 257 6. Troubleshooting CAUTION: The debug log file (SUBLOG.TXT) that can be collected from the machine is saved in clear text data that is not encrypted. As this data may contain information attributed to the user, it is necessary to gain approval from the user before collecting Also, the collected file needs to be handled in the same manner as that for user data necessary for reproduction.

  • Page 258: Error/Jam/Alarm

    Error/Jam/Alarm Outline..........251 Error Codes........252 Jam Code..........257...

  • Page 259: Outline

    7. Error/Jam/Alarm Outline This section describes codes shown in case any problem is occurred. Since this product does not collect logs for jams and alarms, no alarm code is shown. Code type Description Reference Error code Shown for any problem occurred in the device. List of error codes Jam code This code is displayed when a jam occurs inside the machine.

  • Page 260: Error Codes

    7. Error/Jam/Alarm Error Codes Whenever an error occurs, firstly turn off and on the power to check if the error is persistent.(Controller-related errors tend to recover by power-OFF/ON.) * : Supported by model with FAX only E Code Detail Code Item Description E000...
  • Page 261 7. Error/Jam/Alarm E Code Detail Code Item Description E014 0001 Title Revolution of the Fixing Motor was out of the specified range Description After the cycle of the Fixing Motor speed detection signal became the specified cycle once, it deviated from the specified cycle. Remedy 1.
  • Page 262 7. Error/Jam/Alarm E Code Detail Code Item Description E100 0001 Description Error in the BD detection value in the Laser Scanner Motor or the Laser Scanner Unit (Y) Remedy 1. Check the connector between the Laser Scanner Unit and the DC Controller PCB. 2.
  • Page 263 7. Error/Jam/Alarm E Code Detail Code Item Description E225 0001 Remedy 1. Disconnect and then connect the Flexible Cable. 2. Replace the Flexible Cable. 3. Replace the CIS Unit. 4. Replace the Main Controller PCB (PCB2). E248 0001 Title Error in access to backup data for Reader (reading error at power-on) Description The Reader-related adjustment values could not be read.
  • Page 264 7. Error/Jam/Alarm E Code Detail Code Item Description E744 5000 Description Error in the Control Panel PCB (microcomputer) Remedy 1. Check the Control Panel PCB, and install the firmware (PANEL). 2. Install the set of the controller firmware. 3. Replace the Main Controller PCB. E744 6000 Title...

  • Page 265: Jam Code

    7. Error/Jam/Alarm Jam Code PS703 PS702 SR15 SR10 SR14 SR12 SR13 ACC ID JamCode Type Sensor Name/Detection Contents Sensor ID 0001 Delay Document End Sensor Delay PS702 0002 Stationary Document End Sensor PS702 0004 Delay Document End Sensor Delay (2nd side) PS702 0005 Stationary...
  • Page 266 7. Error/Jam/Alarm ACC ID JamCode Type Sensor Name/Detection Contents Sensor ID Stationary 0257 Registration Detection Sensor SR1/SR4/SR7/SR8/SR10 Fixing Delivery Sensor Fixing Loop Sensor MP Tray Pre-Registration Detection Sensor Paper Feeder Pre-Registration Detection Sensor 025C Wrap Fixing Delivery Sensor 02A4 Duplex revers Registration Detection Sensor 1014 Power ON...

  • Page 267: Service Mode

    Service Mode Overview........... 260 COPIER..........264 FEEDER..........300 FAX........... 302 TESTMODE........308...

  • Page 268: Overview

    8. Service Mode Overview Service Mode Menu Backing up Service Mode Each device is tuned at the time of shipment and the tuned values are written on the service label. However, when replacing the main controller PCBs / DC controller PCBs or clearing RAM, tuned ADJUST and OPTION values are reset to defaults.

  • Page 269: Screen Flow Of Service Mode

    8. Service Mode Screen flow of Service mode • Initial screen Scroll the screen. : Flick the screen. SERVICE MODE Go to Category / Sub category selection : Tap the screen. COPIER screen Go to Up category screen : Return key FEEDER TESTMODE •...

  • Page 270: Remote Ui Service Mode

    8. Service Mode • Numeric value entry screen Enter the setting value. : numeric keypad Switch the sign (+/-) of the value : [*] Key Increment the setting value one by one : [▲] (Tap the screen ) Decrease the setting value one by one : [▼] (Tap the screen ) Change the setting : [Apply] Key (Tap the screen )
  • Page 271 8. Service Mode ● Authentication screen 1. PSWD-SW: 0 2. PSWD-SW: 1 3. PSWD-SW: 2 4. Click “Logout” to end the operation. NOTE: After login, if you close the browser without “logout”, it is recognized that you have been “logged in”. Therefore, in order to log in to service mode again, you must wait for a certain period of time (3 minutes) from the last access to make the system timeout or turn OFF/ON the power.

  • Page 272: Copier

    8. Service Mode COPIER DISPLAY ■ VERSION COPIER > DISPLAY > VERSION Item Description MAIN Title Display of MAIN (main program) version Details To display the firmware version of Main Controller PCB. Use case When upgrading the firmware Adj/set/operate method N/A (Display only) Display/adj/set range 00.00 to 99.99...

  • Page 273: I/O

    8. Service Mode ■ JAM Jam code display screen Up to 20 Jam codes and detailed codes for system errors can be shown. ■ CCD COPIER > DISPLAY > CCD Item Description TARGET-B Title Shading target value (B) Details To display the shading target value of Blue. Continuous display of 128 (minimum) or 384 (maximum) is considered a failure of the CIS Unit.

  • Page 274: Adjust

    8. Service Mode COPIER>IO>R-CON Description Remarks dress P001 While the screen is open, the values are updated periodically (with an Display sensor status (HPS) interval of 1 second). P002 No sensor allocated; 0 is always shown While the screen is open, the values are updated periodically (with an interval of 1 second).
  • Page 275 8. Service Mode COPIER > ADJUST > ADJ-XY Item Description ADJ-X-MG Title Fine adj image ratio: vertical scanning Details To make a fine adjustment of image magnification ratio in the vertical scanning direction by changing the reading cycle of CIS When replacing the Engine Controller PCB / clearing the RAM data, enter the value of service label.
  • Page 276 8. Service Mode COPIER > ADJUST > CCD Item Description Details To adjust the offset of the CIS (Front) when reading B&W original. When replacing the Main Controller PCB / clearing the RAM data, enter the value of service label. Use case When replacing the Main Controller PCB / clearing RAM data Adj/set/operate method...
  • Page 277 8. Service Mode COPIER > ADJUST > CCD Item Description Details To adjust the red color LED lighting time when reading B&W original. When replacing the Main Controller PCB / clearing the RAM data, enter the value of service label. Use case When replacing the Main Controller PCB / clearing RAM data Adj/set/operate method...
  • Page 278 8. Service Mode ■ PASCAL COPIER > ADJUST > PASCAL Item Description OFST-P-Y Title Y density adj at test print reading Details To adjust the offset of Y color test print reading signal at Auto Adjust Gradation (Full Adjust). When replacing the Main Controller PCB / clearing the RAM data, enter the value of service label. As the greater value is set, the image after adjustment gets darker.
  • Page 279 8. Service Mode COPIER > ADJUST > VIFADJ Item Description Related service mode COPIER > ADJUST > VIFADJ > DEV-HV-M COPIER > ADJUST > VIFADJ > DEV-HV-C COPIER > ADJUST > VIFADJ > DEV-HV-K DEV-HV-M Title Adjustment of developing bias setting value (M) Details To adjust the setting value of M-color developing bias.
  • Page 280 8. Service Mode COPIER > ADJUST > VIFADJ Item Description Details To adjust the setting value of C-color primary transfer bias. Use case When an image failure occurs Adj/set/operate method Enter the setting value (switch negative / positive by * key) and press Apply key. Display/adj/set range -5 to 5 Default value...
  • Page 281 8. Service Mode ■ SCNR COPIER > ADJUST > SCNR Item Description SUB-S-Y0 Title Adjustment of emitting position 1 (Y) in the vertical scanning direction Details To adjust the Y-color emitting position 1 in the vertical scanning position. Use case When replacing the Laser Scanner Unit, enter the value written on the label included in the package of the Laser Scanner Unit Adj/set/operate method...
  • Page 282 8. Service Mode COPIER > ADJUST > SCNR Item Description Use case When replacing the Laser Scanner Unit, enter the value written on the label included in the package of the Laser Scanner Unit Adj/set/operate method Enter the setting value (switch negative / positive by * key) and press Apply key. Display/adj/set range -1023 to 1023 Default value...
  • Page 283 8. Service Mode COPIER > ADJUST > SCNR Item Description Title Adjustment of scan time 1 (M) in the horizontal scanning direction Details To adjust the M-color scan time 1 in the horizontal scanning direction. Use case When replacing the Laser Scanner Unit, enter the value written on the label included in the package of the Laser Scanner Unit Adj/set/operate method Enter the setting value (switch negative / positive by * key) and press Apply key.
  • Page 284 8. Service Mode COPIER > ADJUST > SCNR Item Description Default value MAI-S-Y2 Title Adjustment of scan time 3 (Y) in the horizontal scanning direction Details To adjust the Y-color scan time 3 in the horizontal scanning direction. Use case When replacing the Laser Scanner Unit, enter the value written on the label included in the package of the Laser Scanner Unit Adj/set/operate method...

  • Page 285: Function

    8. Service Mode FUNCTION ■ CCD COPIER > FUNCTION > CCD Item Description DF-WLVL1 Title White level adj in book mode: color Details To adjust the white level for copyboard scanning automatically by setting the paper which is usually used by the user on the Copyboard Glass. Use case •...
  • Page 286 8. Service Mode COPIER > FUNCTION > CCD Item Description Title CIS intensity adjustment in ADF (color) Details To adjust the black/white level of the CIS for ADF scanning automatically by setting the paper which is usually used by the user on the ADF. (For color scanning) Use case •...
  • Page 287 8. Service Mode COPIER > FUNCTION > CLEAR Item Description Adj/set/operate method 1. Press Yes key. 2. Turn OFF / ON the main power switch. CARD Title Clearing of Card Reader connection info Details To clear the information on connection of the Copy Card Reader-F1. The data related to the card ID (department) is cleared, and the ID and password of the system adminis- trator are initialized.
  • Page 288 8. Service Mode COPIER > FUNCTION > CLEAR Item Description Related service mode COPIER > FUNCTION > INSTALL > E-RDS, RGW-PORT, COM-LOG Supplement/memo Embedded-RDS: Function to send device information such as the device counter, failure, and consumables to UGW via SOAP protocol UGW (Universal Gate Way): Remote monitoring service system ■...
  • Page 289 8. Service Mode COPIER > FUNCTION > MISC-P Item Description Details To output the error log report. Adj/set/operate method Select the item, and then press Yes key. SPEC Title Output of spec report Details To output the spec report. The current device specifications such as the location, model information, and ROM version are output. Adj/set/operate method Select the item, and then press Yes key.
  • Page 290 8. Service Mode COPIER > FUNCTION > SYSTEM Item Description Adj/set/operate method 1. Install the USB memory. 2. Select the item, and then press Yes. 3. Turn OFF and the ON the main power. Caution Do not turn OFF / ON the power before "Executing..." disappears. EXPORT Title Writing of service mode setting value to USB memory...
  • Page 291 8. Service Mode COPIER > FUNCTION > VIFFNC Item Description ICL-IMP Title Execution of ITB cleaning failure prevention 1 Details To execute cleaning for one round of the ITB after printing 2 sheets. (It becomes 2 sheets intermittent mode.) Use case When an image that was on 2 sheets before appears lightly depending on paper type and print pattern (es- pecially high printing ratio) In such a case, image failure can be prevented by setting this mode.
  • Page 292 8. Service Mode COPIER > FUNCTION > SPLMAN Item Description Details To increase the secondary transfer bias. Use case When a trace which looks like toner scattering occurs around the text or print pattern depending on the paper type or environment (especially in a low humidity environment) Adj/set/operate method Select the item, and then press Apply key.
  • Page 293 8. Service Mode COPIER > FUNCTION > SPLMAN Item Description Adj/set/operate method Select the item, and then press Apply key. Display/adj/set range 0 to 1 0 : OFF 1 : ON Default value SPL41971 Title Execution of curl prevention mode 1 Details To extend the initial rotation time and paper interval, and lower the control temperature.
  • Page 294 8. Service Mode COPIER > FUNCTION > SPLMAN Item Description Adj/set/operate method 1. Enter the setting value, and then press Apply key. 2. Turn OFF/ON the main power switch. Display/adj/set range 0 to 20 Unit 0.1 mm Default value Related service mode COPIER >...
  • Page 295 8. Service Mode COPIER > FUNCTION > SPLMAN Item Description Display/adj/set range 0 to 1 0 : OFF 1 : ON Default value SPL89821 Title Shop demonstration mode Details To display image data on color UI repeatedly to appeal the product features to potential users. Use case When appealing the product features to users at shops Adj/set/operate method...
  • Page 296 8. Service Mode COPIER > FUNCTION > SPLMAN Item Description Adj/set/operate method 1. Enter the setting value, and then press Apply key. 2. Turn OFF/ON the main power switch. Display/adj/set range 0 to 1 Default value SPL32620 Title Switching to enable / disable PC-less update Details To switch whether to enable the PC-less update function.
  • Page 297 8. Service Mode COPIER > FUNCTION > INSTALL Item Description Title Setting of UGW port number when using Embedded-RDS Details To set the port number of UGW to be used for Embedded-RDS. Use case When using Embedded-RDS Adj/set/operate method 1. Select the item, and then press Yes key. 2.
  • Page 298 8. Service Mode COPIER > FUNCTION > INSTALL Item Description Related service mode COPIER > FUNCTION > INSTALL > ERDS COPIER > FUNCTION > INSTALL > RGW-PORT COPIER > FUNCTION > INSTALL > COM-TEST COPIER > FUNCTION > INSTALL > COM-RSLT COPIER >...
  • Page 299 8. Service Mode COPIER > OPTION > BODY Item Description Related service mode COPIER > FUNCTION > CLEAR > ALL COPIER > OPTION > BODY > LOCALE NS-CMD5 Title Setting of CRAM-MD5 authentication method at SMTP authentication Details Restriction of the use of CRAM-MD5 authentication method at SMTP authentication When 1 is set, CRAM- MD5 authentication method is not used.
  • Page 300 8. Service Mode COPIER > OPTION > BODY Item Description Title Setting of automatic shutdown menu display Details It is a new function added to support LOT6. To display the auto shutdown menu in the machine supporting LOT6. Adj/set/operate method 1.
  • Page 301 8. Service Mode COPIER > OPTION > FNC-SW Item Description CRG-PROC Title Setting of the operation at the end of CRG life Details To set the following 3 kinds of operations at the end of CRG life: Not stopped / Stopped once/Completely stopped.
  • Page 302 8. Service Mode COPIER > OPTION > IMG-MCON Item Description TMIC-CMY Title ON/OFF of TMIC Y/M/C PASCAL gamma LUT trailing edge correction Details To set ON/OFF of the trailing edge correction of Y/M/C color PASCAL gamma LUT used by TMIC. When 1 is set, the density of the high density area is high.

  • Page 303: Couter

    8. Service Mode COPIER > OPTION > ACC Item Description Adj/set/operate method 1. Enter the setting value, and then press Apply key. 2. Turn OFF/ON the main power switch. Display/adj/set range 0 to 1 0: Disabled 1: Enabled Default value 0 (Model where wireless LAN is provided as an option) 1 (Wireless LAN model) WLANMODE...
  • Page 304 8. Service Mode COPIER > COUNTER > TOTAL Item Description SERVICE2 Title Service-purposed total counter 2 Details To advance the counter when a paper is delivered outside the printer. The counter is advanced regardless of the original size. The counter is not advanced by delivery in service mode.
  • Page 305 8. Service Mode COPIER > COUNTER > TOTAL Item Description Title Media print counter Details To count up when the media print is delivered outside the machine. The counter is advanced regardless of the original size. The counter is not advanced by blank paper or delivery in service mode.
  • Page 306 8. Service Mode COPIER > COUNTER > PICK-UP Item Description Title 2-sided pickup total counter Details To count up the number of sheets picked up in duplex mode. The counter is advanced regardless of the original size. The counter is advanced by printout in service mode. Display/adj/set range 0 to 99999999 Unit...
  • Page 307 8. Service Mode COPIER > COUNTER > JAM Item Description Title Cassette 1 pickup jam counter Details To count up the number of jam occurrences in the Cassette 1 (standard Pickup Cassette). The counter is advanced by paper size mismatch or misprint. Display/adj/set range 0 to 99999999 Unit...

  • Page 308: Feeder

    8. Service Mode FEEDER ADJUST FEEDER > ADJUST Item Description DOCST Title Fine adjustment of VSYNC timing at ADF reading [front side] Details To make a fine adjustment of the VSYNC timing when reading the front side of original with ADF. Execute this item when the output image after ADF installation is displaced.

  • Page 309: Function

    8. Service Mode FEEDER > ADJUST Item Description LA-SPD2 Title Fine adjustment of magnification ratio in vertical scanning direction at ADF stream reading [back side] Details To make a fine adjustment of the image magnification ratio in vertical scanning direction when stream reading the back side of original with ADF.

  • Page 310: Fax

    8. Service Mode Lis of SSSW SSSW No. Bit No. Function SW 01 (Switch relating to error and copy) Bit 0 Output of error code for service technician Bit 1 Error memory dump SW 02 (Switch relating to settings for network connection condition) Bit 7 Connect the terminal as F network type 2 SW 03...

  • Page 311: List Of Menu

    8. Service Mode SSSW No. Bit No. Function SW 28 Bit 0 Prohibit calling party for V8 procedure Bit 1 Prohibit called party from V8 procedure Bit 2 Prohibit calling party from V8 late-start Bit 3 Prohibit called party from V8 late-start Bit 4 Prohibit V.34 called party from starting fallback Bit 5...

  • Page 312: Setting Of Ncu Parameters

    8. Service Mode Numeric parameter setting mode Parameter Allowable setting range Spare STORED_DIAL_MODE wait timer 0 to 65 sec Not in use T.30 T0 timer 55 sec principally T.30 T1 timer (for incoming transmission) 0 to 9999 (France: 3500, Others: 3000) Maximum incoming lines 0 to 65535 (line)0: without limitation T.30 EOL timer...
  • Page 313 8. Service Mode Item Function Setting range PULSE PULSE NUM Minimum pause time 10 to 9999 (msec) ■ DIAL TONE ● Bit Switch Bit No. Function Bit 0 Bit 1 Cadence pattern check Not detected Detected Bit 2 Signal frequency Changed Not changed Bit 3...
  • Page 314 8. Service Mode Bit No. Function Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Signal detection Detected Not detected ● Numeric value parameter Parameter No. Function Setting range T1 timer 0 to 9999 (x 10 msec) T2 timer 0 to 9999 (x 10 msec) T3 timer...
  • Page 315 8. Service Mode ■ AUTO RX ● Numeric value parameter Parameter No. Function Setting range CI ON time 0 to 9999 (x 10 msec) CI LONG ON time 0 to 9999 (x 10 msec) CI OFF time 0 to 9999 (x 10 msec) CI LONG OFF time 0 to 9999 (x 10 msec) CI MAX OFF time...

  • Page 316: Testmode

    8. Service Mode TESTMODE PRINT TESTMODE > PRINT Item Description PG-TYPE Title Setting of PG number Details To set the PG number of the test print. Use case At trouble analysis Adj/set/operate method Enter the setting value, and then press Apply key. Display/adj/set range 0 to 6 0 : PASCAL correction chart 1...

  • Page 317: Fax

    8. Service Mode TESTMODE > PRINT Item Description Display/adj/set range 0 to 1 0 : Normal gamma LUT 1 : Through (linear) gamma LUT Default value Supplement/memo Gamma LUT: Density gradation characteristic table NRKE Title ON/OFF of laser scanning transfer process of test print Details To perform line transfer process for skew correction of test print engine's laser scanning.
  • Page 318 8. Service Mode TESTMODE > FAX > MODEM Item Description RELAY-1 Title NCU relay test 1 Details N To test ON/OFF of relay and port switch of NCU. This mode is disabled for an NCU with no relay and port switch. Use case When analyzing the cause of a problem Adj/set/operate method...
  • Page 319 8. Service Mode TESTMODE > FAX > MODEM Item Description Adj/set/operate method Enter the setting value, and then press Apply key. Caution Be sure to set the value back to 0 after the test. Display/adj/set range 0 to 9 0: OFF 1: 300 bps 2: 2400 bps 3: 4800 bps...
  • Page 320 8. Service Mode TESTMODE > FAX > MODEM Item Description Display/adj/set range 0 to 614 0: OFF • First digit (Modulation speed/baud rate) 1: 2400 baud 2: 2743 baud 3: 2800 baud 4: 3000 baud 5: 3200 baud 6: 3429 baud •...
  • Page 321 8. Service Mode TESTMODE > FAX > FACULTY Item Description Details To check calling tone signal and FED. Set the CML relay to ON and detect the calling tone. The detection results are displayed on the console (UART). Adj/set/operate method Enter the setting value, and then press Apply key.

  • Page 322: Appendices

    APPENDICES Service Tools........315 General Circuit Diagram....316 Print Sequence........317 Backup Data ........318...

  • Page 323: Service Tools

    Service Tools Service Tools Special Tools In addition to the standard tools set, the following special tools are required when servicing the machine: Name of Tool Parts.No Digital Multimeter FY9-2002 Used as a probe extension when making electrical checks. Solvents and Oils The table below lists the standard tools required in service works for this product.

  • Page 324: General Circuit Diagram

    General Circuit Diagram General Circuit Diagram Control Panel Unit USB-Memory J9710 VBUS UN15 J9091 J9111 Reader Unit ADF Unit USB Host PCB J972 PS703 PS702 UN12 PS701 M721 CIS Unit Document Document M720 ADF Motor Homeposition Sensor End Sensor MF728Cdw/727Cdw +3.3V_A UN14 MF728Cdw/727Cdw...

  • Page 325: Print Sequence

    Print Sequence Print Sequence Full-color print on A4 plain paper (3 pages) Print command (second) Operatio n INTR PRNT STBY STBY LSTR Fixing temperature control 1. 0 Drum motor (M1) 1. 2 Developing motor (M2) 0. 7 Pickup motor (M3) 0.

  • Page 326: Backup Data

    Backup Data Backup Data Data Location Replace Delete Backup by User Backup by Service Menu > System Management Settings COPIER > FUNCTION > CLEAR Engine Con- Main Con- Initializing Initializing Initializing System Man- R-CON *2 SRVC-DAT *3 COUNTER HIST *4 ALL *5 Yes/No Method...
  • Page 327 Backup Data *7: When the key and certificate are initialized, TLS authentication of IEEE802.1X and the SSL setting are changed to "OFF". *8: The system administrator ID and the password are changed back to the default values. ID: 0 / PWD: 0. *9: FUNCTION >...

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