Panasonic DP-CL18 Service Manual
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Panasonic DP-CL18 Service Manual

Panasonic DP-CL18 Service Manual

Color laser printer
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ORDER No.KM60503633CE
G0
Color Laser Printer
DP-CL18
© 2005 Panasonic Communications Co., Ltd. All
rights
reserved.
Unauthorized
copying
and
distribution is a violation of law.

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Summary of Contents for Panasonic DP-CL18

  • Page 1 ORDER No.KM60503633CE Color Laser Printer DP-CL18 © 2005 Panasonic Communications Co., Ltd. All rights reserved. Unauthorized copying distribution is a violation of law.
  • Page 2 DP-CL18...

  • Page 3: Table Of Contents

    DP-CL18 CONTENTS Page Page 1 Introduction 6.10. ENG Serial Number Item Menu 1.1. Specifications 6.11. Controller Setting Item Menu 1.2. Options, Accessories and Supplies 6.12. Panel Test Item Menu 1.3. Printer Panel 6.13. Engine Test Item Menu 1.4. External View 6.14.
  • Page 4 DP-CL18 12.2. Recommended Tools 14.1. Covers 12.3. Recommend Cleaning 14.2. Left Side Parts 12.4. Maintenance Tables 14.3. Right Side Parts 13 Troubleshooting 14.4. Front and Top Side Parts 13.1. Initial Troubleshooting Flowchart 14.5. Rear Side Parts (Power Supply, Main Control and High 13.2.

  • Page 5: Introduction

    DP-CL18 1 Introduction 1.1. Specifications...
  • Page 6 DP-CL18...

  • Page 7: Options, Accessories And Supplies

    Hard Disk Drive DA-MC2 Upgrade Kit for DP-CL18 (PS3) The rated life expectancy of each consumable is based on printing under specific operating conditions such as page coverage for a particular page size (5% coverage per color at 600 x 600 dpi resolution on A4 size paper). The actual consumable life will vary depending on its use and other printing variables including page coverage, page size, media type, print resolution, continues or intermittent printing, number of color planes, ambient temperature and humidity.

  • Page 8: Printer Panel

    DP-CL18 1.3. Printer Panel 1.3.1. Panel Operation...
  • Page 9 DP-CL18 1.3.2. LED Indicator Three indicators show the following printer’s status: Blink Indicator Printer Status Power Printer is turned on. Power Printer is in the Power Save mode. Power Printer is turned off. Printer is ready for printing. On Line (Printer warms up and starts printing automatically when it receives print data.)

  • Page 10: External View

    DP-CL18 1.4. External View...

  • Page 11: Main Components Layout

    DP-CL18 1.5. Main Components Layout...
  • Page 12 DP-CL18...

  • Page 13: Pcb, Switches And Sensors Identification

    DP-CL18 1.6. PCB, Switches and Sensors Identification Sensor/Switch/Board Name Description Paper Size Detection For detecting the current selected paper size at the standard paper cassette. Toner Empty Sensor Board For detecting whether the toner is low (or empty) or not.
  • Page 14 DP-CL18 Sensor/Switch/Board Name Description LSU Safety Interlock Switch When the front door or right cover is opened (or both are opened), the power that is supplied to the laser diode drive circuit in the laser unit is shut off because this switch is opened...

  • Page 15: About Lead Free Solder

    DP-CL18 2 About Lead Free Solder 2.1. Suggested PbF Solder We recommend you to use the following solder when re-soldering component for repair. Before using other Pb free solder than the following solder, be sure to confirm a solder maker you appoint has made license agreements to be required when using Pb free solder legally.

  • Page 16: How To Recognize That Pbf Free Solder Is Used

    DP-CL18 2.2. How to recognize that PbF Free solder is used 2.2.1. Main Control Board (Top View) Marked PbF 2.2.2. ROM Board (Top View) Marked PbF...
  • Page 17 DP-CL18 2.2.3. Engine Control Board Marked PbF 2.2.4. Paper Empty/Registration Sensor Board Marked PbF...
  • Page 18 DP-CL18 2.2.5. Multi-purpose (MPT) Paper Detection Sensor Board 2.2.6. ADU Jam Detection Sensor Board Marked PbF 2.2.7. Paper Full Sensor Board Marked PbF 2.2.8. OPC Cam Home Sensor Board Marked PbF 2.2.9. Accumulator Cam Home Position Sensor Board...
  • Page 19 DP-CL18 2.2.10. Waste Toner Full Detection Board Marked PbF 2.2.11. Toner Empty Sensor Board Marked PbF 2.2.12. Multi-purpose (MPT) Home Position Sensor Board Marked PbF 2.2.13. Color Registration Sensor Board 2.2.14. Exit FG Board...
  • Page 20 DP-CL18 2.2.15. LCD Board Marked PbF...

  • Page 21: Installation, Setup, And Repacking

    DP-CL18 3 Installation, Setup, and Repacking 3.1. Installation Requirements 3.1.1. Environment 1. Temperature Range :10 °C - 32.5 °C (50 °F - 90.5 °F) (Temperature fluctuation ± 10 °C per hour or less) 2. Humidity Range :20% RH - 80% RH (Humidity fluctuation ± 20 °C per hour or less) 3.

  • Page 22: Setup

    DP-CL18 3.2. Setup 3.2.1. Removing the Packing Material 1. Remove the plastic bag from the printer. 2. Remove any adhesive tape. Note: Please do not throw away the packing materials. They may be required to ship or transport the printer. To provide optimum print quality, the unit must be kept upright and level at all times.
  • Page 23 DP-CL18 3.2.3. Installing the Print Cartridge 1.Open the right cover (right side door). 6.Firmly push the color print cartridge until it snaps into place. • Store the protective tray, seal covers, packing materials and cartons for repacking in future. 2.Unlock and open the print cartridge holder.

  • Page 24: Repacking

    DP-CL18 3.3. Repacking Prepare the unit before shipping. Note: It is highly recommended that users keep the original carton and All packing materials. Please follow these instructions when moving the printer. · Please use the original carton and all of the original packing material.
  • Page 25 DP-CL18 Turn off the printer, remove the power code and all Unlock the two levers (1) and open the print interface cables. cartridge holder (2). Open the right cover (right side door). Pull out the color print cartridge halfway and remove...
  • Page 26 DP-CL18 Close the PC shutter and wipe off any loose toner on Pull out the black print cartridge. the color print cartridge using a toner vacuum. Do not use a standard office vacuum; the toner will not be retained by typical vacuum dust collectors.
  • Page 27 DP-CL18 Replace the protective tray (1), upper seal cover (2) Remove the media from the multi-purpose tray. and protective cap (3). Push the multi-purpose tray (1) and close the tray cover (2). Be sure the sealing lever of the print cartridge is exposed through the lower seal cover .
  • Page 28 DP-CL18 If the hard disk drive option has been installed in the printer, confirm the hard disk drive is fastened with two screws provided. If it is not installed, proceed to step 26. Install the main control board back into the Remove the two thumb screws from the main printer, as shown.
  • Page 29 DP-CL18 Repack the printer in the original shipping box. Make sure that you keep the printer upright and level when moving. SAFETY CAUTION The printer weighs about 30 K (66 lbs.). It must be handled by two people. Place the printer in the plastic bag on the lower cushion and wrap the printer with the plastic bag.

  • Page 30: User Mode Operation

    DP-CL18 4 User Mode Operation 4.1. User Mode Printer Panel Operation 4.1.1. Panel Operation...
  • Page 31 DP-CL18 4.1.2. LED Indicator Three indicators show the following printer’s status: Blink Indicator Printer Status Power Printer is turned on. Power Printer is in the Power Save mode. Power Printer is turned off. Printer is ready for printing. On Line (Printer warms up and starts printing automatically when it receives print data.)

  • Page 32: User Mode Main Menu

    DP-CL18 4.2. User Mode Main Menu This section covers the basic operation of this model. 1 Plug in the power cord and connect an interface cable to the laser printer. 2 Turn on the power switch. The LCD displays “Initializing”, then “Ready or Ready (PCM*)”...

  • Page 33: Check Then Print Selection 1 Menu

    DP-CL18 4.3. Check then Print Selection 1 Menu...

  • Page 34: Memory Print Item Menu

    DP-CL18 4.4. Memory Print Item Menu...

  • Page 35: Confidential Print Selection 1 Menu

    DP-CL18 4.5. Confidential Print Selection 1 Menu...

  • Page 36: System Information Item Menu

    DP-CL18 4.6. System Information Item Menu...

  • Page 37: Color Calibration Item Menu

    DP-CL18 4.7. Color Calibration Item Menu...

  • Page 38: Maintenance Item Menu

    DP-CL18 4.8. Maintenance Item Menu...

  • Page 39: Tray Item Menu

    DP-CL18 4.9. Tray Item Menu...
  • Page 40 DP-CL18 4.9.1. Position Setting Selection 1 Menu...

  • Page 41: Print Item Menu

    DP-CL18 4.10. Print Item Menu...

  • Page 42: Pcl Item Menu

    DP-CL18 4.11. PCL Item Menu...

  • Page 43: Postscript Item Menu

    DP-CL18 4.12. PostScript Item Menu...

  • Page 44: N/W Protocol Setup Item Menu

    DP-CL18 4.13. N/W Protocol Setup Item Menu...
  • Page 45 DP-CL18...

  • Page 46: Receive Setting Item Menu

    DP-CL18 4.14. Receive Setting Item Menu...

  • Page 47: Adjust To Media Item Menu

    DP-CL18 4.15. Adjust to Media Item Menu...

  • Page 48: System Item Menu

    DP-CL18 4.16. System Item Menu 4.17. Mono Page Detect Item Menu...

  • Page 49: Hdd Maintenance Mode Operation

    DP-CL18 5 HDD Maintenance Mode Operation 5.1. HDD Maintenance Mode Operation The HDD Maintenance mode has the following functions: 1. Displaying information of printer’s hard disk drive - Volume Label - Total Size - Free Size 2. Checking the printer’s hard disk drive 3.

  • Page 50: Hdd Maintenance Mode Menu Table

    DP-CL18 5.2. HDD Maintenance Mode Menu Table The following table is shown when a hard disk drive is installed. If it is not installed, “HDD is not Installed” is displayed on the LCD Panel.

  • Page 51: Hdd Maintenance Mode Main Menu

    DP-CL18 5.3. HDD Maintenance Mode Main Menu...

  • Page 52: Hdd Information Item Menu

    DP-CL18 5.4. HDD Information Item Menu...

  • Page 53: Check Disk Item Menu

    DP-CL18 5.5. Check Disk Item Menu...

  • Page 54: Quick Format Item Menu

    DP-CL18 5.6. Quick Format Item Menu...

  • Page 55: Hdd Format Item Menu

    DP-CL18 5.7. HDD Format Item Menu 5.8. HDD Deletion Item Menu...

  • Page 56: Service Mode Operation

    DP-CL18 6 Service Mode Operation 6.1. Service Mode Control Panel Operation 6.1.1. How to enter the Service Mode To enter the “Service Mode”, turn on the power while pressing the buttons at the same time, and keep the pressing buttons until “Initializing” is displayed. The Service Mode will be activated. The Service Mode is accessible when the Power Save is off.

  • Page 57: Service Mode Menu Table

    DP-CL18 6.2. Service Mode Menu Table...
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  • Page 65: Service Main Menu

    DP-CL18 6.3. Service Main Menu...

  • Page 66: Print Report Item Menu

    DP-CL18 6.4. Print Report Item Menu Menu Name Description Service Report 1 Information regarding JAMs, Service Error Log, etc. is printed. Service Report 2 Information regarding the life count values of consumables and basic setting of engine is printed. Configuration Page General information regarding printer settings or configuration is printed.
  • Page 67 DP-CL18 6.4.1. Printing Example of Service Report 1 The following is an example of what is printed when performing the “Service Report 1” menu.
  • Page 68 DP-CL18 6.4.2. Printing Example of Service Report 2 The following is an example of what is printed when performing the “Service Report 2” menu.
  • Page 69 DP-CL18 6.4.3. Printing Example of Configuration Page The following is an example of what is printed when performing the “Configuration Page” menu.
  • Page 70 DP-CL18...
  • Page 71 DP-CL18 6.4.4. Printing Example of ENG eeprom Dump...
  • Page 72 DP-CL18 6.4.5. Printing Example of CONT eeprom Dump...
  • Page 73 DP-CL18 6.4.6. Printing Example of NW Config. Page The following is an example of what is printed when performing the “NW Config. Page” menu.
  • Page 74 DP-CL18...

  • Page 75: Position Setting Item Menu

    DP-CL18 6.5. Position Setting Item Menu Menu Name Description This mode is used to adjust the top print position, primarily when moving the printer, installing the optional paper feeder, replacing the laser scanning unit or replacing the engine board. Tray 1 Left This mode is used to adjust the left print position of the printed media loaded in the Tray 1, primarily when moving the printer, installing the optional paper feeder, replacing the laser scanning unit or replacing the engine board.

  • Page 76: Str Setting Item Menu

    DP-CL18 6.6. STR Setting Item Menu The following service menus are used to adjust the toner density for each media (Plain, Thin Paper, Transparency, Label, Coated Paper, Thick Paper, Card Stock, Envelope, JP Postcard and JP Postcard 2nd).

  • Page 77: Dev. Bias Item Menu

    DP-CL18 6.7. DEV. Bias Item Menu The following service menus are used to adjust the toner density for all color toner (Cyan, Magenta, Yellow, Black).

  • Page 78: Fsr Temp. Setting Item Menu

    DP-CL18 6.8. FSR Temp. Setting Item Menu The following service menus are used to adjust the fusing temperature for each media (Plain, Thin, Transparency, Label, Coated Paper, Thick, Card, Envelope, JP Postcard and JP Postcard 2nd.)

  • Page 79: Maintenance Item Menu

    DP-CL18 6.9. Maintenance Item Menu Menu Name Description New TC-C? Cyan Toner Cartridge counter is reset. New TC-M? Magenta Toner Cartridge counter is reset. New TC-Y? Yellow Toner Cartridge counter is reset. New TC-K? Black Toner Cartridge counter is reset.

  • Page 80: Eng Serial Number Item Menu

    DP-CL18 6.10. ENG Serial Number Item Menu The Engine Serial Number (eleven figures) is input using this menu.

  • Page 81: Controller Setting Item Menu

    DP-CL18 6.11. Controller Setting Item Menu Menu Name Description Country Application area/country is set. Print Format Default Paper Size is set. Language Default Language is set. PCL Symbol Set Default Symbol Set is set. Power Save Level Default Power Save Level is set.

  • Page 82: Panel Test Item Menu

    DP-CL18 6.12. Panel Test Item Menu This menu is used to check the LCD. Select the “Panel Test “and press the Enter button. Confirm that the LCD messages/patterns shown in the following table are displayed.

  • Page 83: Engine Test Item Menu

    DP-CL18 6.13. Engine Test Item Menu...
  • Page 84 DP-CL18 6.13.1. Solenoid TEST...
  • Page 85 DP-CL18 6.13.2. Regist Clutch TEST...
  • Page 86 DP-CL18 6.13.3. Motor TEST...
  • Page 87 DP-CL18 6.13.4. Paper Detect Sensor TEST...
  • Page 88 DP-CL18 6.13.5. Cassette Sensor Test...
  • Page 89 DP-CL18 6.13.6. Temp & Humidity Sensor...
  • Page 90 DP-CL18 6.13.7. WTC & Toner Sensor...
  • Page 91 DP-CL18 6.13.8. Door Sensor...
  • Page 92 DP-CL18 6.13.9. Other Sensor...

  • Page 93: Color Correction Item Menu

    DP-CL18 6.14. Color Correction Item Menu 6.15. Flag Setting Item Menu If “Yes” is selected on this menu, the printer will be filled with toner about 5 minutes after turning on the printer the next time.

  • Page 94: Printing Network Configuration Report

    DP-CL18 6.16. Printing Network Configuration Report The following is an example of what is printed when performing the Printing Network Configuration Report (refer to the section 6.1.2 “How to print the Network Configuration Report”.).

  • Page 95: Mechanical Function

    DP-CL18 7 Mechanical Function 7.1. Drive Mechanism General Description Three motors (CMY motor, BK motor, paper pickup motor) cartridges, accumulator unit (Acc Unit or AU), accumulator supply drive to each mechanical block within the engine. The tension unit (ATU), paper feed unit and fuser unit.
  • Page 96 DP-CL18 7.1.1. CMY Motor Rotation Travel (CMY Motor Rotation Travel) Cyan Print Cartridge (OPC) Cyan Print Cartridge (Developer) Magenta Print Cartridge (OPC) Magenta Print Cartridge (Developer) Yellow Print Cartridge (OPC) Yellow Print Cartridge (Developer) (14) (13) (12) (11) (10) CMY Motor...
  • Page 97 DP-CL18 7.1.2. BK Motor Rotation Travel (BK Motor Rotation Travel) The Motor Rotation is transmitted to the Toner Cartridge Holder Unit through this gear. The Motor Rotation is transmitted to the Black Print Cartridge Motor Rotation (Developer) through this gear.

  • Page 98: Accumulator Tension Unit (Atu) Drive Mechanism

    DP-CL18 7.2. Accumulator Tension Unit (ATU) Drive Mechanism The accumulator tension unit is for operating the function of up accumulator belt slack”, “Contacting STR Roller to accumulator unit and depositing waste toner in the waste toner Accumulator Belt”, “Selecting of FTR Roller”, “lifting up FTR cartridge.
  • Page 99 DP-CL18 7.2.1. ATU Drive Clutch The ATU drive clutch is used to turn on and off the rotation from the BK motor to the cam shaft. See the following figure-1. The ATU drive clutch consists of the cam ratchet, cam ratchet wheel, cam ratchet wheel gear, 4 planetary gears and accumulator cam switching solenoid.
  • Page 100 DP-CL18 There are 4 statuses of the accumulator tension unit for controlling the printing process. These 4 statuses are set by the 4 detents of the cam ratchet wheel. · Accumulator Belt Cleaning Position: When the hook (A) engages with the detent (B), the slack in the accumulator belt is taken up by the “Accumulator belt slack”...
  • Page 101 DP-CL18 7.2.2. Taking up Accumulator Belt Slack Taking up accumulator belt slack is performed by the tension cam link, cam shaft, STR cam in the accumulator tension unit and 4 levers (A) - (D), belt tension roller in the accumulator unit. The following indicates the location of these parts (tension cam link, cam shaft, etc.).
  • Page 102 DP-CL18 7.2.3. Contact STR Roller to Accumulator Belt The STR roller is in contact with the accumulator belt or released from the accumulator belt by the STR release lever linked with the STR cam in the accumulator tension unit. The following indicates the STR cam, cam shaft and STR release lever in the accumulator tension unit.
  • Page 103 DP-CL18 7.2.4. Lifting up FTR Roller The FTR roller(s) is (are) contacted to the accumulator belt or released from the accumulator belt by the “FTR Roller Lifting Up” mechanism consists of the FTR lift levers, FTR cams, cam shaft, etc.,. The following indicates the FTR lift levers, FTR cams, cam shaft and FTR cam slider in the accumulator tension unit.
  • Page 104 DP-CL18 7.2.4.1. FTR Roller Lift Mechanism The “FTR roller lift” is performed by the FTR cam slider in the accumulator tension unit, FTR roller lift lever, lift arm, spring and FTR roller support lever. The following indicates the FTR roller lift lever, lift arm, spring, etc., in the accumulator unit.
  • Page 105 DP-CL18 7.2.5. Selecting of FTR Roller There are four FTR rollers, three colors (yellow, magenta, cyan) and one for black. The changer solenoid is for selecting these FTR rollers. When turning on the changer solenoid, the changer lever moves in the arrow (1) direction. The pin on the changer lever moves the FTR cam slider in the same direction [arrow (2)].
  • Page 106 DP-CL18 7.2.6. Waste Toner Cartridge Stirring The waste toner cartridge is engaged with the WTC drive cam as shown below. The WTC drive cam is fixed to the cam shaft in the accumulator tension unit. The WTC drive cam is rotating in the arrow (A) direction by the cam shaft. When the cam shaft rotates one full turn, the WTC drive cam rotates 4 full turns.
  • Page 107 DP-CL18 7.2.7. Timing Chart The following chart indicates the timing to the movement of accumulator tension unit.

  • Page 108: Print Process

    DP-CL18 7.3. Print Process This Laser Printer creates an image on paper using a technique called laser electrophotography. The printer uses the electrographic process known as Discharged Area Development, or “write black”. In this process, a digitally modulated laser scans laterally across a rotating OPC (Organic Photo Conductive) drum that has been negatively charged.
  • Page 109 DP-CL18 7.3.1. Charging The charging roller, comes in contact with the OPC drum surface and charged to approximately -1100 volts, and ensures a uniform negative potential of approximately -500 ~ 550 volts on the OPC drum surface by the charging roller, depending on the selected dot per inch printing and ambient temperature.
  • Page 110 DP-CL18 7.3.3. Developing As the OPC drum continues to rotate, it passes by the developer roller. The developer roller is charged to a potential approximately -200 volts (350 VAC p-p). Toner is attracted to the exposed portions of the OPC drum in reverse proportion to the negative charge.
  • Page 111 DP-CL18 7.3.5. Paper Pickup The cam-shaped pickup rollers are driven by the BK (black print cartridge) drive motor and force a sheet between the paper feed rollers. The pickup roller completes only one rotation to pick a sheet of media from the paper cassette. This will push the sheet of paper to the paper feed rollers but does not pick a second sheet.
  • Page 112 DP-CL18 7.3.6. Toner Transfer to Paper Once all four layers of toner reside up on the accumulator belt, the registration roller clutch is energized to advance a sheet of paper (which has already been picked) to the second bias transfer roller. The toner image on the rotating accumulator and the paper that is being fed into the image unit are synchronized for proper alignment.
  • Page 113 DP-CL18 7.3.7. Fusing After toner image has been applied to the paper, it passes through the fuser. When the BK motor starts to rotate, the IH coil is turned on, heating the heat roller. As a result, the fuser belt, contacted with the heat roller surface, is heated by the heat roller. A heated fuser belt melts the toner and pressure drives it into the paper.
  • Page 114 DP-CL18 7.3.8. Paper Exit and Paper Switchback 7.3.8.1. Normal Printing Mode (Not Duplex Printing Mode) ( Normal Printing Mode ) Rotation Switching Gear - A ( Rotation of this Gear is locked because the Switching Lever engages. ) Paper Exit Roller...
  • Page 115 DP-CL18 7.3.8.2. Duplex Printing Mode (Paper Switchback) (Figure-1) (Figure-2) (Duplex Mode) Rotation Switching Gear - A ( Rotation of this Gear is locked. ) Switchback Pinch Paper Exit Roller Roller Paper Path Switching Guide ( To Paper Tray ) Arrow (A)

  • Page 116: Removal And Replacement Procedures

    DP-CL18 8 Removal and Replacement Procedures Before performing the following steps, unplug the AC in the IH coil, IH cable, thermostat cables and power cord, then remove the 4 toner cartridges (cyan, thermostats. The nuts, screws and fasten terminals magenta, yellow and black), 2 print cartridges (black and color), connect the IH cable to the IH coil and thermostats.

  • Page 117: Accumulator Unit (Acc. Unit)

    DP-CL18 8.2. Accumulator Unit (Acc. Unit) Open the right cover. Loosen the 2 Acc. unit lock screws. Slide out the Acc. unit from the printer with care to prevent damage to accumulator belt. 8.3. Front Door Cover and STR (Second Transfer Roller) Bias Assembly 8.3.1.
  • Page 118 DP-CL18 8.3.2. STR (Second Transfer Roller) Unit Release the STR roller cover by moving it in the arrow (A) direction, then remove a STR Roller Assembly. Remove the 4 screws while pushing the STR holder in the arrow (A) direction and STR Unit from the front door cover.

  • Page 119: Right Cover

    DP-CL18 8.4. Right Cover Release the 2 hooks of the cartridge lever A. Release the plastic strap from the right cover. Remove the right cover while releasing the 3 hinges and hook from the printer chassis. 8.5. Rear, Left and Top Covers 8.5.1.
  • Page 120 DP-CL18 Remove the 2 screws. Release the 5 hooks, using a small flat blade screw driver. Remove the rear cover. If necessary, remove the cassette cover and cable cover from the rear cover. 8.5.2. Left Cover Remove the screws (2).
  • Page 121 DP-CL18 8.5.3. Top Cover with LCD Panel Release the 7 hooks to separate the LCD panel cover from the top cover. Separate the LCD panel cover with the LCD panel. Disconnect the LCD cable and earth lead wire. Release the 5 hooks (A) from the printer chassis.

  • Page 122: Color Registration Sensor

    DP-CL18 8.6. Color Registration Sensor Before performing the following steps, unplug AC cord, then remove the 4 toner cartridges (cyan, magenta, yellow and black), waste toner cartridge and accumulator unit from the printer Open the right cover. Open the PC holder assembly.

  • Page 123: Engine Control Board, Toner Cartridge Holder, Cartridge Drive Unit, Paper Pickup Motor, Main Drive Unit, Bias Unit

    DP-CL18 8.7. Engine Control Board, Toner Cartridge Holder, Cartridge Drive Unit, Paper Pickup Motor, Main Drive Unit, Bias Unit, Fan Motor and Fan Motor Duct 8.7.1. Engine Control and Temperature/Humidity Sensor Boards Before performing the following steps, remove the left, top and rear covers.
  • Page 124 DP-CL18 8.7.2. Sub Fuser Fan and Sub Fuser Fan Duct Remove the sub fuser fan (2 screws). Disconnect the fan cable from the sub fuser fan. Disconnect the CMY cable from the CMY motor. Remove the sub fuser fan duct (2 screws).
  • Page 125 DP-CL18 8.7.4. Paper Pickup Motor and Motor Bracket Remove the 2 screws from the paper pickup motor. If necessary, disconnect the connector CN22 on the engine board, and cut the plastic belts which bundles the pickup motor cable. Remove the paper pickup motor from the paper pickup motor bracket.
  • Page 126 DP-CL18 8.7.5.1. Inner Cover, ADU Jam Detection Sensor Board and ADU Detection Sensor 1. Remove the inner cover (2 screws). 2. Disconnect the 2 connectors from the inner cover. 3. Remove the fuser earth plate (1 screw). 4. If necessary, remove the ADU jam detection sensor board and ADU detection sensor.
  • Page 127 DP-CL18 8.7.5.3. Main Drive Unit Disassembly Notice: Installing CMY Motor 1. Remove the 4 screws (A) and 7 screws (B). 2. Remove the drive unit bracket (S), bushing and washer from the drive unit. 3. If necessary, remove the Acc. GND spring (1 screw).
  • Page 128 DP-CL18 1. Remove the feed idle gear, cam gear, PC (Print Cartridge) idle gear (L), etc.
  • Page 129 DP-CL18 1. Remove the CMY home lever, PC home spring and PC home lever. 2. Remove the screw and OPC cam home position sensor board. 1. Remove the 4 E-rings, 4 OPC Gears and 4 DEV. gear assemblies. Caution: When exchanging the OPC Gears, the 4 OPC Gears must...
  • Page 130 DP-CL18 1. Remove the drive unit bracket (M) (4 screws).
  • Page 131 DP-CL18 1. Remove the BK change gear with solenoid (1 screw). 2. Remove the CMY change gear, hopper change gear, etc. 1. Remove the screw and tension roller spring from the tension roller bracket. 2. Remove the tension roller, Acc. (Accumulator Unit) pulley gear, Acc.
  • Page 132 DP-CL18 8.7.6. Bias Unit Before performing the following steps, remove the toner cartridge holder, toner cartridge drive unit, paper cassette drive motor bracket, engine control board, sub fuser fan and main drive unit. Disconnect the connectors CN2 and 3 on the high voltage board (see section 8.14 “High Voltage Board and Reg.

  • Page 133: Lsu (Laser Scanning Unit)

    DP-CL18 8.8. LSU (Laser Scanning Unit) Before performing the following steps, remove the left, top and rear covers (see section 8.5 “Rear, Left and Top Covers”). Remove the LSU earth plate (4 screws). Remove the 3 LSU screws from the LSU.
  • Page 134 DP-CL18 Remove 3 screws from the paper exit gear cover and 1 screw from the earth lead terminal. Disconnect the connector CN26 on the engine board (see section 8.7.1 “Engine Control and Temperature/Humidity Sensor Boards “. Remove the paper exit gear cover, gears and switching lever from the chassis.
  • Page 135 DP-CL18 If the earth lead and screw are installed, remove the screw to free the earth lead from the printer chassis. Remove a screw from the paper exit sub assembly. (10) Remove the paper exit roller and exit restraint levers by moving it in the direction of arrow [(1), (2)].
  • Page 136 DP-CL18 (12) Remove the paper full sensor and sensor lever spring. (13) Remove the paper Full sensor board. (14) Disconnect the cable from the sensor board. (15) If necessary, disconnect the connector CN17 on the engine control board. 8.9.1. Disassembly of Paper Exit Sub Assembly The pinch rollers (A), pinch rollers (B), pinch roller springs.

  • Page 137: Ih (Inductive Heater) Unit

    DP-CL18 8.10. IH (Inductive Heater) Unit Before performing the following steps, remove all covers and fuser unit. Caution: Handling of the IH Unit When turning on the IH unit, the current (approx. 12 Arms: 100V AC Power) flows in the IH unit. For safety, observe the following: If not necessary, don’t remove the plastic and metal covers from the IH unit.
  • Page 138 DP-CL18 Remove the interlock switch cover (3 screws). Remove the IH cable shield cover while unlatching the hook from the printer chassis using a flat-blade screw driver (1 screw and 1 hook) (see figure-1). Remove the protect cover while pushing softly on the hook using a small pin and moving it in the arrow direction (1 screw and 1 hook) (see figure-2).
  • Page 139 DP-CL18 Remove the IH harness cover (1 screw). Remove the IH unit (1 screw and 1 washer) while pulling out the IH harness cable through the opening. Note: The IH unit is engaged with the chassis frame by the projection. When removing the IH unit from the chassis, slide the IH unit in the arrow direction.

  • Page 140: Paper Feed Unit

    DP-CL18 8.11. Paper Feed Unit Before performing the following steps, remove the rear cover, left cover and front door. Remove the clip. Slide out the registration clutch and registration roller joint gear. Note: When reinstalling the registration clutch, opening (A) of registration clutch must be aligned with hook (B).
  • Page 141 DP-CL18 Note: Wiring of Paper Feed Unit Cable 8.11.1. Paper Feed Unit Disassembly Remove the pickup gear and inner gear (B) while unlatching the gear hook. The inner gear (A), outer gear and gear can be removed. Remove the plastic washer and ratchet arm from the gear bracket.
  • Page 142 DP-CL18 Remove the bushing (B) from the pickup roller shaft. Remove the bushing (A) while unlatching the bushing hook from the pickup roller shaft. Remove the 2 pickup roller assemblies from the pickup roller shaft by sliding it in the arrow direction while unlatching the hook from the groove of pickup roller shaft.
  • Page 143 DP-CL18 (17) The registration paper guide assembly is held in place by the 2 support tabs (see Figure-1). While unlatching the registration paper guide assembly from the support tabs, remove it from the paper feed unit frame. (18) Remove the 2 bushings from both end of paper feed roller, then paper feed roller from the paper feed unit frame.

  • Page 144: Power Supply Unit

    DP-CL18 8.12. Power Supply Unit (Power Supply Board and IH Power Board) Before performing the following steps, remove the rear cover, right cover, left cover, top cover and accumulator unit. Remove the screw from the protect cover. Slide out the protect cover in the Arrow (B) direction while pushing softly the hook using a small pin.
  • Page 145 DP-CL18 8.12.1. Power Supply Unit Disassembly Separate the power supply shield cover from the power supply base plate (10 screws). Disconnect the 2 cables. Remove 7 screws (B). Remove the power supply board. Remove the 5 screws (C), then the IH power supply board.

  • Page 146: Main Control Board

    DP-CL18 8.13. Main Control Board Remove the 2 screws. Slide out the main control board with the ROM board. 8.13.1. Main Control Board Shield Covers Before performing the following steps, remove all covers, power supply unit and engine board shield cover.

  • Page 147: High Voltage Board And Reg. Thermistor Sensor

    DP-CL18 8.14. High Voltage Board and Reg. Thermistor Sensor Before performing the following steps, remove all covers, power supply unit, main control shield cover assembly and engine board shield cover. Remove the 2 screws (A) and 3 screws (B). Separate the PC earth spring and high voltage unit (consists of high voltage board, high voltage board shield cover, etc.) from the chassis.

  • Page 148: Accumulator Tension Unit

    DP-CL18 8.15. Accumulator Tension Unit Before performing the following steps, remove rear cover, left cover, top cover, black print cartridge, color print cartridge and Acc unit. Open the right cover. Open the print cartridge holder. Remove the 2 screws. Disconnect the connectors CN14, 24 and 25 on the engine control board (see section 8.7.1 “Engine Control and...
  • Page 149 DP-CL18 8.15.1. Accumulator Tension Unit Disassembly Remove the FTR cam slider guide with damper (1 screw). Remove the FTR cam slider (2 screws) Remove the 5 springs. Remove the 2 E-rings from both end of the sub shaft, and slide out the sub shaft.
  • Page 150 DP-CL18 Remove the plastic washer and E-ring from both end of the cam shaft. The WTC Drive Cam, WTC Outer Gear, WTC Planetary Gear, etc., can be removed from the cam shaft. Remove the cam shaft assembly.
  • Page 151 DP-CL18 Remove the 2 E-rings from both ends of cam shaft. The FTR (First Transfer Roller) Cam (R), FTR Cam Link (R), etc., can be removed from the cam shaft. Caution: When reassembling the cam shaft, the 4 cams and home tab must be aligned as shown below (Figure-2).

  • Page 152: Print Cartridge Unit Holder

    DP-CL18 8.16. Print Cartridge Unit Holder Before performing the following steps, remove rear cover, left and top covers. When handling and servicing the Print Cartridge Unit Holder · Do not handle part (A), or poor print quality will occur. · Do not loosen or remove any screws on the print cartridge unit holder, or poor print quality may occur.

  • Page 153: Fuser Fan Motor

    DP-CL18 8.17. Fuser Fan Motor Before performing the following steps, remove rear, left and top covers. Open the right cover. Remove the screw and fuser fan motor from the chassis. Remove the insulation sheet and then disconnect the fan cable from the fan motor.

  • Page 154: Mpt (Multipurpose Print Tray) Home Position Sensor And

    DP-CL18 8.19. MPT (Multipurpose Print Tray) Home Position Sensor and MPT Paper Detection Sensor Boards Before performing the following steps, remove the left, top cover and rear covers. Remove the paper pickup motor bracket screw. Remove the 2 screws from MPT sensor cover.

  • Page 155: Standard Paper Cassette

    DP-CL18 8.21. Standard Paper Cassette Unlatch the hook from the delay pad holder assembly by moving it in the arrow (1) direction. Remove the delay pad holder assembly by turning it in the arrow (2) direction. Remove the delay pad holder assembly from the cassette.
  • Page 156 DP-CL18 Slide out the pickup roller holder assembly from the pickup roller shaft while unlatching the pickup roller hook from the pickup roller shaft. Remove the gear cover (2 screws), sub tray protector and protector spring. Remove the gear spacer, idle gear, roller position arm, MPT cam gear, right cam and pin.
  • Page 157 DP-CL18 Remove the MPT upper plate (3 screws). Remove the upper cassette paper chute while unlatching the 2 hooks. (10) Remove the left cam while unlatching the hook from the cam shaft. (11) Remove the cam shaft and bushing. Note: When reinstalling the upper cassette paper chute, the projection (A) must be aligned with the part (B).
  • Page 158 DP-CL18 (14) Remove the holder spring and MPT paper holder with left & right paper guides. (15) The tray cover, paper tray and paper tray base can be removed from the cassette.
  • Page 159 DP-CL18 (16) Release the corner separator from the hook, then remove the corner separator by moving it as shown Figure-1. (17) Raise the cassette base plate in the arrow (3) direction. (18) Slide the cassette base plate in the arrow (4) direction, and remove it.
  • Page 160 DP-CL18...

  • Page 161: Block And Connection Diagrams

    DP-CL18 9 Block and Connection Diagrams 9.1. Block Diagram 9.1.1. Printer Main Control Board Block Diagram ( Main Control Board ) IC24 ( ASIC2 ) Option 2.5" HDD IDE Controller IC23 25MHz PCI BUS Interface HDD Connector MAC & PHY...
  • Page 162 DP-CL18 9.1.2. Engine Control Board Block Diagram ( Engine Control Board ) X3 (12.288 MHz) Tem./Humidity Sensor Circuit Tem./Humidity Sensor Thermistor for Pressure Roller Thermistor 1, 2 Fuser Unit I/F Circuit Fuser Unit LCD I/F Heat Roller Rotation Detection Sensor...

  • Page 163: Connection Diagram

    DP-CL18 9.2. Connection Diagram ADU Jam Fuser Unit Detection Board Paper Feed Unit Paper Full Sensor Board ADU Detection Registration Fuser Board Jam Sensor MPT Paper Switch Clutch CMY OPC Black OPC Jam Sensor CN1508 Pickup Motor Home Sensor Home Sensor...
  • Page 164 DP-CL18...

  • Page 165: Electrical Circuit General Description

    DP-CL18 10 Electrical Circuit General Description 10.1. General Description 10.1.1. Printer Main Control Board General Description The printer main control board consists of CPU (IC6), ASIC1 (IC15), ASIC2 (IC24), NW control LSI (IC23), main memory (CN3, CN4: SO-DIMM), program memory (CN9: ROM) and hard disk (optional HDD).
  • Page 166 DP-CL18 EEPROM Interface This is for communicating with EEPROM. Compression This is for compressing the RAW bitmap data for cyan, magenta, yellow and black. Decompression This block consists of 5 decompression blocks. One is for pre-rendering to print. The remaining 4 blocks is for color compressed bitmap data (cyan, magenta, yellow and black).
  • Page 167 DP-CL18 10.1.6. Color Registration Sensor Board Mainly, this board consists of 2 LEDs and photo sensors. The photo sensors detects the reflected LED light from the accumulator belt surface to calculate the color mis-registration value. 10.1.7. Sensors and Small Boards...
  • Page 168 DP-CL18...

  • Page 169: Explanation Of Connector

    DP-CL18 10.2. Explanation of Connector 10.2.1. Main Control Board 10.2.1.1. CN1 (on main control board): Parallel Interface Connector Parallel Interface Connector Pin No. Signal Name Description In/Out nStrobe Strobe Data0 Data0 In/Out Data1 Data1 In/Out Data2 Data2 In/Out Data3 Data3...
  • Page 170 DP-CL18 10.2.1.2. CN3 and CN4 (on main control board): SO-DIMM Connector SO-DIMM Connector (Standard) SO-DIMM Connector (Option) (1 of 4) Pin No. Signal Name Description In/Out VSS1 Ground VSS10 Ground Data input/output In/Out DQ32 Data input/output In/Out Data input/output In/Out...
  • Page 171 DP-CL18 SO-DIMM Connector (Standard) SO-DIMM Connector (Option) (2 of 4) Pin No. Signal Name Description In/Out Data input/output In/Out DQ40 Data input/output In/Out Data input/output In/Out DQ41 Data input/output In/Out DQ10 Data input/output In/Out DQ42 Data input/output In/Out DQ11 Data input/output...
  • Page 172 DP-CL18 SO-DIMM Connector (Standard) SO-DIMM Connector (Option) (3 of 4) Pin No. Signal Name Description In/Out Non Connect Clock VSS5 Ground VSS14 Ground Non Connect NC12 Non Connect Non Connect NC13 Non Connect VCC5 3.3V VCC14 3.3V DQ16 Data input/output...
  • Page 173 DP-CL18 SO-DIMM Connector (Standard) SO-DIMM Connector (Option) (4 of 4) Pin No. Signal Name Description In/Out Address Bank select Address A10 (AP) Address Address VCC7 3.3V VCC16 3.3V DQMB2 Data Mask DQMB6 Data Mask DQMB3 Data Mask DQMB7 Data Mask...
  • Page 174 DP-CL18 10.2.1.3. CN5 (on main control board): Option Hard Disk Connector Option HDD Connector (1 of 2) Pin No. Signal Name Description In/Out NHRST Reset For Host DD[7] Data In/Out DD[6] Data In/Out DD[5] Data In/Out DD[4] Data In/Out DD[3]...
  • Page 175 DP-CL18 Option HDD Connector (2 of 2) Pin No. Signal Name Description In/Out GND8 Ground DD[8] Data In/Out DD[9] Data In/Out DD[10] Data In/Out DD[11] Data In/Out DD[12] Data In/Out DD[13] Data In/Out DD[14] Data In/Out DD[15] Data In/Out Non Connect...
  • Page 176 DP-CL18 10.2.1.5. CN8 (on main control board) to engine control board (CN38) (1 of 3) Engine I/F Connector Pin No. Signal Name Description In/Out Ground FP6(LCD[4]) Data [4] for front panel In/Out FP9(LCD[1]) Data [1] for front panel In/Out FP12(LCD[7])
  • Page 177 DP-CL18 Engine I/F Connector (2 of 3) Description In/Out Pin No. Signal Name Ground FP5(LCD[3]) Data [3] for front panel In/Out FP8(LCD[5]) Data [5] for front panel In/Out FP11(LCD[0]) Data [0] for front panel In/Out FP14(LCDEN) Enable for front panel...
  • Page 178 DP-CL18 Engine I/F Connector (3 of 3) Description In/Out Pin No. Signal Name Gronud Ground FP7(LCD[2]) Data [2] for front panel In/Out FP10(LCD[6]) Data [6] for front panel In/Out FP13(LEDSET) LED set for front panel FP16(LCDRW) Read/Write for front panel...
  • Page 179 DP-CL18 10.2.1.6. CN9 (on main control board): Flash-ROM Connector Flash-ROM Connector (1 of 2) Pin No. Signal Name Description In/Out GND1 Ground GND2 Ground GND3 Ground GND4 Ground LIOA[0] Address LIOA[1] Address LIOA[2] Address LIOA[3] Address LIOA[4] Address LIOA[5] Address...
  • Page 180 DP-CL18 Flash-ROM Connector (2 of 2) Pin No. Signal Name Description In/Out LIOD[1] Data In/Out LIOD[2] Data In/Out LIOD[3] Data In/Out LIOD[4] Data In/Out LIOD[5] Data In/Out LIOD[6] Data In/Out LIOD[7] Data In/Out LIOD[8] Data In/Out LIOD[9] Data In/Out LIOA[10]...
  • Page 181 DP-CL18 10.2.1.7. CN11 (on main control board): RJ-45 Connector (10/100 Base-T) RJ-45 Connector CN11 Pin No. Signal Name Description In/Out Serial Transmit Data+ Serial Transmit Data- Serial Receive Data+ Non Connector Non Connector Serial Receive Data- Non Connector Non Connector 10.2.2.
  • Page 182 DP-CL18 10.2.2.2. CN2 (on engine board) / CN3 (on LSU) CN2 (on engine board)/CN3 (on LSU) Pin No. In/Out Signal Name Description +24V +24V 24VGND Ground NPMCTL Motor Control NPMLD Motor Lock Detect PMCLK Motor Clock 10.2.2.3. CN3 (on engine board) / CN2 (on LSU) CN3 (on engine board)/CN2 (on LSU) Pin No.
  • Page 183 DP-CL18 10.2.2.5. CN6 (on engine board) CN6 Print Cartridge (PC) Virgin Sensor Board I/F Pin No. Signal Name Description In/Out PIKFUSEK Black Print Cartridge Fuse In/Out Ground PIKFUSEYMC CMY (Color) Print Cartridge Fuse In/Out Ground 10.2.2.6. CN7 (on engine board) CN7 Front/Right Door Open Detection Switch I/F Pin No.
  • Page 184 DP-CL18 10.2.2.9. CN11 (on engine board) CN11Toner Cartridge Access Cover Detection Switch I/F Pin No. Signal Name Description In/Out TCDOPEN Toner Cartridge Access Cover Open Ground 10.2.2.10. CN12 (on engine board) / CN1 (on CMY motor) / CN1 (BK motor) CN12 (on engine board) / CN1 (on CMY motor) / CN1 (BK motor) Pin No.
  • Page 185 DP-CL18 10.2.2.12. CN14 (on engine board) / CN1510 (on accumulator cam home position sensor board) CN14 (on engine board) / CN1510 (on accumulator cam home position sensor board) In/Out Pin No. Signal Name Description CN14 CN1510 +5V_CAMSEN ITHOME1 Accumulator Cam Home Position Ground 10.2.2.13.
  • Page 186 DP-CL18 10.2.2.15. CN18 (on engine board) / CN1506 (on paper empty/registration sensor board) CN18 (on engine board) / CN1506 (on paper empty/registration sensor board) In/Out Pin No. Signal Name Description CN18 CN1506 STPNON Standard Paper Cassette Paper Empty NREGSEN Registration Sensor Ground 10.2.2.16.
  • Page 187 DP-CL18 10.2.2.20. CN23 (on engine board) / CN1507 (on MPT paper detection sensor board) / CN1512 (on MPT home position sensor Board) CN23 (on engine board) / CN1507 (on MPT paper detction sensor baord) / CN1512 (on MPT home position sensor board) Pin No.
  • Page 188 DP-CL18 10.2.2.24. CN27 (on engine board) / CN1501 (on color registration sensor board) CN27 (on engine board) / CN1501 (on color registration sensor board) Pin No. In/Out Signal Name Description CN27 CN1501 CN27 CN1501 SNS_L Left Side Color Regist. Sensing Signal...
  • Page 189 DP-CL18 10.2.2.28. CN31 (on engine board) / CN1 (on option feeder unit) CN31 (on engine board) / CN1 (on option feeder unit) In/Out Pin No. Signal Name Description CN31 Ground SIOCS1 Option Feeder 1 SIO Chip Select SCLK Option Feeder SIO Clock...
  • Page 190 DP-CL18 10.2.2.30. CN33 (on engine board) / CN2505 (on power supply board) CN33 (on engine board) / CN2505 (on power supply board) Pin No. In/Out Signal Name Description CN33 CN2505 CN33 CN2505 +5VA +5VA Ground +5VB +5VB Ground Ground NSLP Sleep 10.2.2.31.
  • Page 191 DP-CL18 10.2.2.33. CN38 (on engine board; to main control board) ( 1 of 3 ) Printer Control Board I/F CN38 Pin No. Signal Name Description In/Out Ground Data 4 for front panel In/Out Data 1 for front panel In/Out FP12...
  • Page 192 DP-CL18 CN38 Printer Control Board I/F (2 of 3) Description In/Out Pin No. Signal Name Ground Data 3 for front panel In/Out Data 5 for front panel In/Out FP11 Data 0 for front panel In/Out FP14 Enable for front panel...
  • Page 193 DP-CL18 CN38 Printer Control Board I/F (3 of 3) Description In/Out Pin No. Signal Name Ground Ground for front panel Data 2 for front panel In/Out FP10 Data 6 for front panel In/Out FP13 LED Set for front panel FP16...
  • Page 194 DP-CL18 10.2.2.34. CN39 (on engine board) / CN1508 (on ADU Jam detection board) CN39 (on engine board) / CN1508 (on ADU Jam detection board) Pin No. In/Out Signal Name Description CN39 CN1508 CN39 CN1508 Ground ADUNON ADU Unit Non +5V_ADU...
  • Page 195 DP-CL18 10.2.2.37. CN45, CN46 (on engine board) / CN3301 (on front panel) CN45, CN46 (on engine board) / CN3301 (on front panel) Pin No. In/Out Signal Name Description CN45 CN46 CN3301 CN45 CN46 CN3301 Front Panel Ground Front Panel Data 3...
  • Page 196 DP-CL18 10.2.3.2. CN1513 (on Exit FG Board) CN1513 (on Exit FG board) Pin No. Signal Name Description In/Out Flame Ground EXT FG Flame Ground 10.2.3.3. CN2001 (on IH power board) CN2001 (on IH power board) Pin No. Signal Name Description...
  • Page 197 DP-CL18 10.2.3.7. CN2502 (on power supply board) / CN2207 (on IH power supply board) CN2502 (on power supply board) / CN2207 (on IH power supply board) Pin No. In/Out Signal Name Description CN2502 CN2207 CN2502 CN2207 A/D Converter Output Data...

  • Page 198: Adjustment

    DP-CL18 11 Adjustment 11.1. Print Position Calibration This adjustment is used to set the print position calibration after moving the printer, installing the optional paper feeder, replacing the engine control board or replacing the laser scanning unit (LSU). 1. Turn on the printer and enter the User Mode (or Service Mode).

  • Page 199: Color Density Adjustment

    DP-CL18 11.2. Color Density Adjustment This adjustment is used to set the density of the toner applied to the media. This feature compensates for the changes in density that can occur as environmental conditions change, print cartridges or the accumulator unit age.
  • Page 200 DP-CL18 Color Calibration Card Clean white paper (at least 2 sheets) Color Calibration Test Print Page · If they match and CMY Composite Gray is proper, then the color density adjustment is not needed and any operation can be performed.
  • Page 201 DP-CL18 11.2.1. STR Setting By adjusting the STR bias using this service mode, the transfer performance adjustment for each media type can be performed. 1. To enter the “Service Mode”, turn on the power. Turn on the power while pressing the...
  • Page 202 DP-CL18 (Fig-1) Adjustment By pressing button, Colors of Green, Red, Blue and Black are highlighted. (Fig-2) Adjustment By pressing button, The mottled patterns of light Black, Magenta and Cyan colors are refined. 5. Reprint and check the page. If necessary, readjust.
  • Page 203 DP-CL18 11.2.2. Dev. Bias Setting By adjusting the Dev. bias using this service mode after the color density adjustment, a range of dark & light color adjustment for each following media type is expanded from (-5 to +5) to (-10 to +10). When performing this adjustment, use the following test print pattern, Color Calibration Test Print or user’s unique test pattern.
  • Page 204 DP-CL18 11.2.3. FSR Temp. Setting 1. To enter the “Service Mode”, turn on the power. Turn on the power while pressing the buttons at the same time, then keep pressing the buttons until “Initializing” is displayed. 2. Press the Menu/Exit button, select “FSR Temp. Setting” by pressing button, and Enter or continue button.
  • Page 205 DP-CL18 Example (Example 1) If fusing temperature is not enough: If the fusing temperature is not enough to fuse the toner, the toner is easily detached from the paper because the toner is not completely fused to the paper. In particular, a thick part of toner is detached easily. The detached toner from the paper attaches to the fuser belt (see above figure;...
  • Page 206 DP-CL18 The above phenomenon(s) is (are) observed at the following parts on the color chart. When the fuser temperature is high or low, the above phenomenon(s) will occur. (Example 1) (Example 1)

  • Page 207: Skew Adjustment

    DP-CL18 11.3. Skew Adjustment When performing the following, this adjustment must be done. · Replace LSU or Print Cartridge Unit Holder · Reassemble Print Cartridge Holder and reinstall it 11.3.1. Check of Skew Check of Skew Remove the left and rear covers (see section 8.5. Rear, Left and Top Covers).
  • Page 208 DP-CL18 11.3.2. Skew Adjustment Skew Adjustment Open the right cover. Peel the label off the print cartridge unit holder. Draw (or mark) a line on the print cartridge unit Holder aligning a white color pin as shown below (Fig-4 and Fig-4-1).
  • Page 209 DP-CL18 (7) Perform the steps (4) and (5) in section 13.3.1 "Check of Skew". Make sure that the black line is in between 3 color lines [Area (A)] as shown below (Fig-6). If the skew is good, reinstall the access panel, left cover, rear cover and long main board screw. If not, repeat the steps (3) ~ (7).

  • Page 210: Preventative Maintenance

    DP-CL18 12 Preventative Maintenance 12.1. General Regularly scheduled cleaning is not necessary for this printer. However, if the printer experiences frequent media jams, clean the pickup rollers. 12.2. Recommended Tools The following tools are recommended. Toner Vacuum Cleaner Puff (Air Blower)

  • Page 211: Maintenance Tables

    DP-CL18 12.4. Maintenance Tables 12.4.1. User Maintenance The following table lists the user replaceable components and the symptoms that may result when they need to be replaced. Printer Component Front Panel Message Average Life * Symptom Toner Cartridge “Low <Color> Toner “...

  • Page 212: Troubleshooting

    DP-CL18 13 Troubleshooting 13.1. Initial Troubleshooting Flowchart...

  • Page 213: Warning/Error Message

    DP-CL18 13.2. Warning/Error Message 13.2.1. Warning Message...
  • Page 214 DP-CL18 13.2.2. User Errors...
  • Page 215 DP-CL18...
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  • Page 226 DP-CL18 13.2.3. Printer Error (Call Service)
  • Page 227 DP-CL18...

  • Page 228: Jam And Hdd Error

    DP-CL18 13.3. Jam and HDD Error 13.3.1. Print Media Problem...
  • Page 229 DP-CL18 13.3.2. Print Media Skew...
  • Page 230 DP-CL18 13.3.3. Paper Jam at the media tray...
  • Page 231 DP-CL18 13.3.4. Paper Jams at the registration roller...
  • Page 232 DP-CL18 13.3.5. Paper Jams at the 2nd bias transfer roller...
  • Page 233 DP-CL18 13.3.6. Paper Jams at the fuser unit...
  • Page 234 DP-CL18 13.3.7. Multi-purpose Tray Jams...
  • Page 235 DP-CL18 13.3.8. Wrong paper length Jams...
  • Page 236 DP-CL18 13.3.9. Paper Jams at the upper optional media tray (OPF1)
  • Page 237 DP-CL18 13.3.10. Paper Jams at the lower optional media tray (OPF2)
  • Page 238 DP-CL18 13.3.11. Paper Jam at automatic duplex unit (ADU)
  • Page 239 DP-CL18 13.3.12. HDD I/O Error...

  • Page 240: Print Quality

    DP-CL18 13.4. Print Quality 13.4.1. Blank Print...
  • Page 241 DP-CL18 13.4.2. All-black Print...
  • Page 242 DP-CL18 13.4.3. Missing Primary Color...
  • Page 243 DP-CL18 13.4.4. Light Print...
  • Page 244 DP-CL18 13.4.5. Repeated spots or lines on print in-line with each other...
  • Page 245 DP-CL18 13.4.6. Dark Vertical Line in Print...
  • Page 246 DP-CL18 13.4.7. White horizontal line or band in all the color of a print...
  • Page 247 DP-CL18 13.4.8. Mis-transfer, missing portions of toner...
  • Page 248 DP-CL18 13.4.9. Dirty Background...
  • Page 249 DP-CL18 13.4.10. Partial Primary Color Dots 13.4.11. Dark Irregular Streaks in Print...
  • Page 250 DP-CL18 13.4.12. Primary Color Irregular Streaks 13.4.13. Ghosting...
  • Page 251 DP-CL18 13.4.14. Unfused or Partially Fused Printing...
  • Page 252 DP-CL18 13.4.15. Image is skewed on the paper...
  • Page 253 DP-CL18 13.4.16. Stains on Back of Print...
  • Page 254 DP-CL18 13.4.17. No Printing on Edge of Print...
  • Page 255 DP-CL18 13.4.18. Image is not centered on the print when it should be...

  • Page 256: Printer Error (Call Service)

    DP-CL18 13.5. Printer Error (Call Service) 13.5.1. Printer Error 10 and Printer Error 11...
  • Page 257 DP-CL18 13.5.2. Printer Error 20...
  • Page 258 DP-CL18 13.5.3. Printer Error 24...
  • Page 259 DP-CL18 13.5.4. Printer Error 35...
  • Page 260 DP-CL18 13.5.5. Printer Error 36...
  • Page 261 DP-CL18 13.5.6. Printer Error 37 and Printer Error 38...
  • Page 262 DP-CL18 13.5.7. Printer Error 40 and Printer Error 43...
  • Page 263 DP-CL18 13.5.8. Printer Error 41...
  • Page 264 DP-CL18 13.5.9. Printer Error 45...
  • Page 265 DP-CL18 13.5.10. Printer Error 46...
  • Page 266 DP-CL18 13.5.11. Printer Error 47...
  • Page 267 DP-CL18 13.5.12. Printer Error 48...
  • Page 268 DP-CL18 13.5.13. Printer Error 50...
  • Page 269 DP-CL18 13.5.14. Printer Error 53...
  • Page 270 DP-CL18 13.5.15. Printer Error 54 13.5.16. Printer Error 56...
  • Page 271 DP-CL18 13.5.17. Printer Error 65...
  • Page 272 DP-CL18 13.5.18. Printer Error 66...
  • Page 273 DP-CL18 13.5.19. Printer Error 70 13.5.20. Printer Error 72...
  • Page 274 DP-CL18 13.5.21. Printer Error 73...
  • Page 275 DP-CL18 13.5.22. Printer Error 80...
  • Page 276 DP-CL18 13.5.23. Printer Error 81...
  • Page 277 DP-CL18 13.5.24. Printer Error 82...
  • Page 278 DP-CL18 13.5.25. Printer Error 83...
  • Page 279 DP-CL18 13.5.26. Printer Error 84...
  • Page 280 DP-CL18 13.5.27. Printer Error 90...
  • Page 281 DP-CL18 13.5.28. Printer Error 91, Printer Error 92 and Printer Error 96 13.5.29. Printer Error 93, 94...
  • Page 282 DP-CL18 13.5.30. Printer Error 95 13.5.31. Printer Error 98...

  • Page 283: No Message

    DP-CL18 13.6. No Message...

  • Page 284: No Printing

    DP-CL18 13.7. No Printing 13.7.1. Using Parallel Interface Cable...
  • Page 285 DP-CL18 13.7.2. Using USB Interface Cable...
  • Page 286 DP-CL18 13.7.3. Using Network Interface...

  • Page 287: Replacement Parts List With Lubrication Guide

    DP-CL18 14 Replacement Parts List with Lubrication Guide 14.1. Covers Ref. No. Part No. Part Name & Description PJYP00HP0M LCD Panel Cover Assembly...
  • Page 288 DP-CL18 Ref. No. Part No. Part Name & Description PJHRB0479Z-1 Paper Stopper PJWP00HPDM LCD Board Complete PJYK00HP0M Rear Cover Assembly PJYF00HP0M Top Cover Assembly PJHRB0478Z-1 Paper Stopper Base PJKEB0053Y-1 2nd Cassette Feeder Cable Cover PJKEB0056Y-1 Cassette Cover PJHRB0211Z-1 Left Front Door Axis...
  • Page 289 DP-CL18 14.1.2. STR Unit Ref. No. Part No. Part Name & Description PJZE00HP0M STR Frame Base Assembly PJBVC0074Z STR Spring PJBUC0031Z Terminal Plate PJHRC0163Z STR Bushing PJNWC0003Z Plastic Washer PJHRC0157Z STR Roller Holder (L) PJZE00HP1M STR Holder Assembly PJDFC0111Z STR Cover Shaft...

  • Page 290: Left Side Parts

    DP-CL18 14.2. Left Side Parts Ref. No. Part No. Part Name & Description PJMDC0019Z Fuser Earth Plate PJZE00HPLM Inner Cover Assembly...
  • Page 291 DP-CL18 Ref. No. Part No. Part Name & Description K0F111E00096 ADU Detection Sensor PJWP00HP3M ADU Jam Detection Sensor Board PJMDB0100Z STR HV Plate PJDGB0135Z Duplex Unit Drive Gear PJDGB0132Z Paper Pickup Drive Gear PJZH00HP1M Paper Pickup Motor Bracket 42S1S15D6NE Paper Pickup Motor...
  • Page 292 DP-CL18 Ref. No. Part No. Part Name & Description PJZV00HP0M Toner Cartridge Holder Assembly FBE08A24HS Power Supply Fan Motor PJHRC0045Z Power Supply Fan Duct PJBUC0019Z FHV Plate XTW3+12SFJ7 Screw 3 x 12 mm XTW3+6LFJ7 Screw 3 x 6 mm XTW3+35SFJ7...
  • Page 293 DP-CL18 14.2.1. Engine Control Board Ref. No. Part No. Part Name & Description PJJRC0042Z Cable for CN3 PJJRC0044Z Cable with ferrite core for CN1 PJJRC0045Z Cable with ferrite core for CN45, 46 PJJRC0007Z Cable for CN11 PJJRC0019Z Cable for CN7...
  • Page 294 DP-CL18 Ref. No. Part No. Part Name & Description KRCBC130714B Ferrite Core with case 14.2.2. Bias Terminal Ref. No. Part No. Part Name & Description PJWE00HP0M Bias Terminal Assembly PJDSB0147Z Middle Terminal Spring PJDSB0077Z Long Terminal Spring PJDSB0078Z Short Terminal Spring...
  • Page 295 DP-CL18 14.2.3. Main Drive Unit Ref. No. Part No. Part Name & Description Remarks L6CCKHEK0001 Drive Motor PJMDB0315Z Spacer PJDGB0112Z Hopper Gear C PJDPB0011Y BK Changer Gear with Solenoid PJDSB0074Z Tension Roller Spring PJDGB0105Z Feed Idle Gear PJDGB0100Z Fuser Idle Gear...
  • Page 296 DP-CL18 Ref. No. Part No. Part Name & Description Remarks PJDGB0102Z Acc Idle Gear (L) PJDGB0158Z Acc Idle Gear (R) PJZG2CL500M OPC Gear Kit PJHRB0183Y DEV. Coupling PJDSB0075Z DEV. Spring PJDGB0096Y DEV. Gear PJZE00HP3M Main Drive Unit Frame PJUSB0071Z Acc GND Spring...

  • Page 297: Right Side Parts

    DP-CL18 14.3. Right Side Parts Ref. No. Part No. Part Name & Description Remarks FBE08A24HS Fuser Fan Motor K0L1BH000001 Front/Right Door Open Detection Switch PJMDB0170Y Interlock Switch Bracket...
  • Page 298 DP-CL18 Ref. No. Part No. Part Name & Description Remarks PJWS00HP0M Interlock Switch PJMDB0215X Acc Fixing Plate PJHRB0428Z Waste Toner Cartridge Left Holder PJHRB0201Z Interlock Lever PJDSB0143Z Interlock Lever Spring PJHRB0412Z IH Cable Shield Cover PJKEB0044Z Interlock Cover PJHRC0048Z Protect Cover...
  • Page 299 DP-CL18 14.3.1. Accumulator Tension Unit (ATU) Ref. No. Part No. Part Name & Description Remarks PJZE00HP7M FTR Cam Slider Guide with Damper PJZE00HP8M FTR Cam Slider with seal PJHRC0100Z Cam Slider Seal...
  • Page 300 DP-CL18 Ref. No. Part No. Part Name & Description Remarks PJWP00HP6M Accumulator Cam Home Position Sensor PJHRC0097Z Changer Lever PJBVC0069Z Changer Lever Spring PJSTC0002Z Changer Solenoid PJNW525Z Plastic Washer PJDJB0047Z Bushing PJDGB0087Z Double Teeth Gear PJDGB0085Z Outer Gear PJDGB0086Z Planetary Gear...

  • Page 301: Front And Top Side Parts

    DP-CL18 14.4. Front and Top Side Parts 14.4.1. Paper Exit Ref. No. Part No. Part Name & Description Remarks PJDGB0128Z Paper Exit Roller Joint Gear PJDGB0167Z Rotation Switching Gear - A PJDGB0166Z Rotation Switching Gear - B PJDGB0168Z Outer Gear...
  • Page 302 DP-CL18 Ref. No. Part No. Part Name & Description Remarks PJDGB0134Z Intermediate Gear PJDGB0127Z Double Teeth Gear PJDGB0029Z Inner Gear PJDGB0025Z Coupling Gear PJDSB0096Z Switching Lever Spring PJHRB0239Z Switching Lever PJDPB0006Y Rotation Switching Solenoid PJHRB0270Z Paper Exit Gear Cover PJHRB0480Z...
  • Page 303 DP-CL18 14.4.2. LSU and IH Unit Ref. No. Part No. Part Name & Description Remarks PJZU00HP0M LSU Earth Plate Assembly PJSGB0002W LSU (Laser Scanning Unit) PJHRC0139Z STR Plate Holder PJMCB0063Y IH Shield Cover PJHRC0042Z PC Sub Guide PJWE00HP1M IH Assembly...
  • Page 304 DP-CL18 Ref. No. Part No. Part Name & Description Remarks XWG3E12FJ Washer XYN3+F10FJ Screw 3 x 10 mm PJBUC0081Z LSU Earth Plate...
  • Page 305 DP-CL18 14.4.3. Paper Feed Unit Ref. No. Part No. Part Name & Description Remarks PJDCB0002Y Registration Roller Clutch...
  • Page 306 DP-CL18 Ref. No. Part No. Part Name & Description Remarks PJDGB0171Z Registration Roller Joint Gear PJDGB0119Z Pickup Gear PJDGB0029Z Inner Gear-A PJDGB0120Z Outer Gear PJDGB0121Z Inner Gear-B PJDJ06121RZ Bushing PJDGB0149Z Gear PJDGB0124Z Idle Gear PJDGB0123Z Feed Gear PJZLCL500M Ratchet Arm Assembly...

  • Page 307: Rear Side Parts (Power Supply, Main Control And High Voltage Boards)

    DP-CL18 14.5. Rear Side Parts (Power Supply, Main Control and High Voltage Boards) Ref. No. Part No. Part Name & Description Remarks EUKMBN942HA High Voltage Board Complete Non Repairable PJWC00HP4M High Voltage Board Shield Cover PJMCC0023Z Earth Plate PJHRC0044Z Cassette Holder...
  • Page 308 DP-CL18 14.5.1. Main Control Board Ref. No. Part No. Part Name & Description Remarks PJWC00HP1M Main Board Shield Cover Assembly PJWC00HP2M Main Board Shield Base Cover Assembly PJHRB0204Z Main Board Guide Rail PJWP00HP2M Main Control Board Complete PJHRB0317Z Main Control Board Knob...
  • Page 309 DP-CL18 14.5.2. Power Supply Unit Ref. No. Part No. Part Name & Description Remarks PJWC00HP0M Power Supply Shield Cover Assembly PJHRC0047Z Power Supply Inner Duct PJWP00HPCM IH Power Supply Board Non Repairable N0AB3GJ00009 Power Supply Board Non Repairable PJJRCT0022Z Cable...

  • Page 310: Cassette

    DP-CL18 14.6. Cassette 14.6.1. Cassette (1) Ref. No. Part No. Part Name & Description PJHRB0251Z-1 Pickup Roller Holder PJDRB0051Z Pickup Rubber PJDRA0101Z One-way Wheel PJHRA0848Z Pickup Wheel PJDVB0006Z Pickup Roller Timing Belt PJZEECL500M Upper Cassette Paper Chute Assembly PJHRB0369Z-1 Delay Pad Holder...
  • Page 311 DP-CL18 Ref. No. Part No. Part Name & Description PJHRB0503Z Tray Protector PJDGB0133Z Idle Gear PJDGB0138Z Gear Spacer PJHRB0363Z-1 Gear Cover PJDGB0137Z MPT Cam Gear PJHRB0313Z Roller Position Arm PJDFC0174Z Cam Shaft PJDHC0018Z Right Cam XTW3+6LFJ7 Screw 3 x 6 mm...
  • Page 312 DP-CL18 Ref. No. Part No. Part Name & Description PJDGB0148Z Pinion Gear PJHRB0217Y-1 Paper Size Adjuster XTW3+8FFJ 3 x 8 mm PJUSB0105Z Paper Size Detector Support Plate...

  • Page 313: Packing Material

    DP-CL18 14.7. Packing Material Ref. No. Part No. Part Name & Description Remarks PJPGC0140Y Upper Carton Box HP-601W2-S Joint PJPNB0103Z Side Pad PJPNB0087W Top Pad PJPGB0096Z Bottom Carton Box PJPNB0088Y Bottom Pad PJJXC0058Z Printer Driver and Operation Manual PJQQC0029Z Setup Guide (English)

  • Page 314: Pbf Solder Service Part Number

    DP-CL18 14.10. PbF Solder Service Part Number The service part number for the recommended PbF solder is RMA02M705-08. When the recommended PbF solder is not available at Senju Metal Industry Co., Ltd., use this PbF solder part number.

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