Kyocera TASKalfa 620 Service Manual
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Kyocera TASKalfa 620 Service Manual

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Table of Contents

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See also: Driver Manual , Operating Manual
TASKalfa 620/820
SERVICE
MANUAL
Published in August 2009
842KP112
2KPSM062
Rev. 2

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Summary of Contents for Kyocera TASKalfa 620

  • Page 1: Service Manual

    TASKalfa 620/820 SERVICE MANUAL Published in August 2009 842KP112 2KPSM062 Rev. 2...
  • Page 2 CAUTION RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS. It may be illegal to dispose of this battery into the municipal waste stream. Check with your local solid waste officials for details in your area for proper disposal. ATTENTION IL Y A UN RISQUE D’EXPLOSION SI LA BATTERIE EST REMPLACEE PAR UN MODELE DE TYPE INCORRECT.

  • Page 3: Revision History

    Revision history Revision Date Replaced pages Remarks May 19, 2009 1-1-1, 1-1-2, 1-2-3, 1-2-10, 1-2-17, 1-3-16, 1-3-34, 1-3-77, 1-3-79 to 1-3-81, 1-3-83, 1-4-8, 1-4-9, 1-5-6, 1-5-12, 1-5-14, 1-5-18, 1-5-21, 1-5-24, 1-5-41 to 1-5-43, 1-5-77, 1-5-82, 1-6-1, 2-4-5 August 19, 2009 1-3-4, 1-3-52...
  • Page 4 This page is intentionally left blank.

  • Page 5: Safety Precautions

    Safety precautions This booklet provides safety warnings and precautions for our service personnel to ensure the safety of their customers, their machines as well as themselves during maintenance activities. Service personnel are advised to read this booklet carefully to familiarize themselves with the warnings and precautions described here before engaging in maintenance activities.
  • Page 6 Safety warnings and precautions Various symbols are used to protect our service personnel and customers from physical danger and to prevent damage to their property. These symbols are described below: DANGER: High risk of serious bodily injury or death may result from insufficient attention to or incorrect compliance with warning messages using this symbol.

  • Page 7: Installation Precautions

    1.Installation Precautions WARNING • Do not use a power supply with a voltage other than that specified. Avoid multiple connections to one outlet: they may cause fire or electric shock. When using an extension cable, always check that it is adequate for the rated current....................•...
  • Page 8 2.Precautions for Maintenance WARNING • Always remove the power plug from the wall outlet before starting machine disassembly....• Always follow the procedures for maintenance described in the service manual and other related brochures............................• Under no circumstances attempt to bypass or disable safety features including safety mechanisms and protective circuits.
  • Page 9 • Do not remove the ozone filter, if any, from the copier except for routine replacement..... • Do not pull on the AC power cord or connector wires on high-voltage components when removing them; always hold the plug itself...................... •...
  • Page 10 This page is intentionally left blank.

  • Page 11: Table Of Contents

    2KN/2KP CONTENTS 1-1 Specifications 1-1-1 Specifications............................1-1-1 1-1-2 Parts names............................1-1-3 (1) Body ..............................1-1-3 (2) Operation panel..........................1-1-5 1-1-3 Cross section view ..........................1-1-6 1-2 Installation 1-2-1 Installation environment ..........................1-2-1 1-2-2 Unpacking and installation ........................1-2-3 (1) Installation procedure ........................1-2-3 1-2-3 Setting initial copy modes ........................1-2-16 1-2-4 Installing the key counter (option) ......................1-2-17 1-3 Maintenance Mode 1-3-1 Maintenance mode ..........................1-3-1...
  • Page 12 2KN/2KP (18) Image center does not align with the original center...............1-4-57 (19) Image is not square.........................1-4-57 (20) There is a regular error between the centers of the original and copy image when the DP is used........................1-4-58 (21) There is a regular error between the leading edges of the original and copy image when the DP is used.
  • Page 13 2KN/2KP (3) Detaching and refitting the press roller....................1-5-60 (4) Detaching and refitting the cleaning felt ..................1-5-61 (5) Detaching and refitting the fuser thermostat 1 and 2 ..............1-5-63 (6) Detaching and refitting the fuser thermistor M and S ..............1-5-65 (7) Detaching and refitting the fuser heater M, S and L................1-5-66 (8) Detaching and refitting the heat roller .....................1-5-70 (9) Detaching and refitting the heat roller separation claws..............1-5-71 (10) Detaching and refitting the fuser eject upper roller................1-5-72...
  • Page 14 2KN/2KP 2-3 [Operation of the PWBs 2-3-1 AC power source PWB ...........................2-3-1 2-3-2 DC power source PWB ...........................2-3-5 2-3-3 Main PWB .............................2-3-10 2-3-4 Engine PWB............................2-3-19 2-3-5 Scanner PWB ............................2-3-28 2-3-6 CCD PWB .............................2-3-32 2-3-7 Deck PWB.............................2-3-35 2-3-8 Cassette PWB............................2-3-41 2-3-9 Duplex PWB............................2-3-44 2-3-10 Operation PWB .............................2-3-49 2-3-11 HDD relay PWB ............................2-3-53 2-3-12 DP main PWB ............................2-3-56...

  • Page 15: Specifications

    2KN/2KP-1 1-1 Specifications 1-1-1 Specifications Type ..........Console Copying system ......Indirect electrostatic system Supported original types ....Sheets, books and three-dimensional objects Maximum size: A3/11" x 17" Original feed system ....... Fixed Paper weight........Cassette: 60 - 160 g/m MP tray : 45 - 200 g/m Paper type ........
  • Page 16 2KN/2KP-1 Photoconductor....... a-Si (drum diameter 84 mm) Image write system......Semiconductor laser Charging system......Double positive corona charging Developing system ......Dry, reverse developing (single component system) Developer: 1-component, magnetism toner Toner replenishing: Automatic from a toner container Transfer system ......Transfer belt and transfer roller Separation system ......

  • Page 17: Parts Names

    2KN/2KP 1-1-2 Parts names (1) Body Figure 1-1-1 Operation panel 12. Handles Operation panel lock lever 13. Main power switch Document processor (DP) 14. Main power switch cover Cassette 1 15. Document processor bottom cover Cassette 2 16. Original size indicator plates Cassette 3 17.
  • Page 18 2KN/2KP Figure 1-1-2 22. Original table 32. Paper conveyor 23. Original width guides 33. Knob A1 24. Cleaning cloth compartment 34. Lever A2 25. Original loaded Indicator 35. Knob A3 26. Document processor top cover 36. Duplex unit 27. Ejection guide 37.
  • Page 19 2KN/2KP (2) Operation panel 18 16 Figure 1-1-3 Brightness adjustment dial 11. Logout key Copy key/indicator 12. Interrupt key/indicator Printer key/indicator 13. Energy saver key/indicator Scann key/indicator 14. Touch panel Document management key/indicator 15. Numeric keys Print management key/indicator 16. Reset key Repeat copy key/indicator 17.

  • Page 20: Cross Section View

    2KN/2KP 1-1-3 Cross section view Light path Paper and original path Figure 1-1-4 Paper feed section Cleaning section Main charging section PTC section Optical section Fuser section Drum section 10. Feedshift and eject section Developing section 11. Duplex section Transfer section 12.

  • Page 21: Installation Environment

    2KN/2KP 1-2Installation 1-2-1 Installation environment ° ° Temperature: 10 - 32.5 C/50 - 90.5 Humidity: 15 - 80%RH Power supply: 120 V AC, 16.0 A 220 - 240 V AC, 9.5 A ± ± Power source frequency: 50 Hz 2%/60 Hz Installation location Avoid direct sunlight or bright lighting.
  • Page 22 2KN/2KP a: 680 mm/26 " b: 811 mm/31 " 15/16 c: 1190 mm/46 " d: 2148 mm/84 " 9/16 e: 1465 mm/57 " 11/16 f: 1530 mm/60 " 3/16 Figure 1-2-1 Installation dimensions 1-2-2...

  • Page 23: Unpacking And Installation

    2KN/2KP-1 1-2-2 Unpacking and installation (1) Installation procedure Start Unpacking. Taking out the machine. Remove the tapes, pins, spacers and sheet. Remove the screws. Remove the tapes of transfer section and duplex unit. Installing the toner container. Connecting the power cord. Initial setting for the developer.
  • Page 24 2KN/2KP Unpacking. Figure 1-2-2 Unpacking Machine 15. Cassette spacers Skid 16. Sheet Slopes 17. DP sheet Lower left spacer 18. Rear sheets Lower right spacer 19. Hinge joints Upper left spacer 20. Plastic bag Upper right spacer 21. Operation guide Upper spacer 22.
  • Page 25 2KN/2KP Taking out the machine. When taking out the machine, a space for machine rear requires approximately 2 m. 1. Remove the hinge joints, and then remove the upper case, the upper spacer, the upper left spacer, the upper right spacer, the outer case and the supports.
  • Page 26 2KN/2KP 5. Remove the machine cover and pull out the handles on machine left and right. 6. Lift the machine each left and right one side, and then remove the lower left and right spacers. 7. Move the machine alongside slopes to slide to the floor.
  • Page 27 2KN/2KP Remove the tapes, pins, spacers and sheet. 1. Remove nineteen tapes, DP spacer and DP sheet. DP spacer Tape Tape Tape Tapes DP sheet Tape Tapes Tapes Tape Tape Tapes Tapes Tapes Tape Tapes Figure 1-2-5 2. Remove four tapes and three pins. Pin for light source unit 1 Pin for light...
  • Page 28 2KN/2KP 3. 120 V specifications: Remove the two tapes of power cord. 230 V specifications: Remove the tape of power cord. 120 V specifications 230 V specifications Tape Tapes Figure 1-2-7 4. Remove four tapes and two rear sheets. Tapes Tape Rear sheet Rear sheet...
  • Page 29 2KN/2KP 6. Pull out cassette 1 and 2, then remove two Deck spacer deck spacers. 7. Remove the tape from the deck spacer of Guide case cassette 1 and then remove the guide case. Tape Deck spacer Figure 1-2-10 8. Pull out cassette 3 and 4, then remove two cassette spacers and tapes.
  • Page 30 2KN/2KP-1 Remove the screws. 1. Open the front cover and remove two screws. Screws Figure 1-2-12 Remove the tapes of transfer section and duplex unit. 1. Pull out the paper conveying unit. Paper conveying unit 2. Remove the tape from the transfer section. 3.
  • Page 31 2KN/2KP Installing the toner container. 1. Set the toner container on a flat surface. * When setting it down with the gear-end fac- ing down, place some cushioning material underneath. 2. Tap the top of the toner container at least ten times.
  • Page 32 2KN/2KP Connecting the power cord. 1. Connect the power cord to the inlet on lower left of the machine. (230 V specifications only.) 2. Connect the power plug to the wall outlet. Power cord Figure 1-2-16 Initial setting for the developer. 1.
  • Page 33 2KN/2KP Make test copies. 1. Load paper in the cassette. * The deck front cursors are movable back Screw and forth within the width limits of the ellipse holes for the fixing screws. Loosen the screws, move the deck front cursors appropriately, and tighten the screws if the Hole clearance between the paper and deck...
  • Page 34 2KN/2KP Attaching the language label (230 V specifications only). 1. According to need, attach the correspond language of operation unit label, MP label, DP labels and main power switch label. MP label Figure 1-2-18 DP labels Main power switch label DP label Figure 1-2-19 1-2-14...
  • Page 35 2KN/2KP Installing the guide case. 1. Attach the guide case to the machine right. Guide case Figure 1-2-20 Completion of the machine installation. 1-2-15...

  • Page 36: Setting Initial Copy Modes

    2KN/2KP 1-2-3 Setting initial copy modes Factory settings are as follows: Maintenance Contents Factory setting item No. U253 Switching between double and single counts Double count for A3/11" x 17" paper only U254 Turning auto start function ON/OFF U258 Switching copy operation at toner empty detection SINGLE MODE, 200 U260 Changing the copy count timing...

  • Page 37: Installing The Key Counter (Option)

    2KN/2KP-1 1-2-4 Installing the key counter (option) Key counter installation requires the following parts: Key counter set (P/N 302A369708) Supplied parts of key counter set: Key counter socket assembly (P/N 3029236241) Key counter cover (P/N 3066060011) Key counter mount (P/N 3066060041) Key counter retainer (P/N 302GR03020) Key counter cover retainer (P/N 302GR03010) One (1) M3 x 8 tap-tight P screw (P/N 5MBTPB3008PW++R)
  • Page 38 2KN/2KP 4. Cut out the aperture plate on the middle Middle right cover right cover using nippers. 5. Pass the 4-pin connector of the key counter Key counter cover through the apertures in the key counter retainer (302GR03010) cover retainer and middle right cover, and insert into the 4-pin connector inside the 30 screw Aperture plate...

  • Page 39: Maintenance Mode

    2KN/2KP 1-3 Maintenance Mode 1-3-1 Maintenance mode The copier is equipped with a maintenance function which can be used to maintain and service the machine. (1) Executing a maintenance item Start Enter 10871087 using Maintenance mode is entered. the numeric keys. Enter the maintenance item number using the cursor up/down keys The maintenance item is...

  • Page 40: Maintenance Mode Item List

    2KN/2KP (2) Maintenance mode item list Initial setting* Item Section Content of maintenance item 82 cpm 62 cpm General U000 Printing out an own-status report U001 Exiting the maintenance mode U002 Setting the factory default data U003 Setting the service telephone number *************** U004 Setting the machine number...
  • Page 41 2KN/2KP Initial setting* Item Section Content of maintenance item 82 cpm 62 cpm Optical U071 Adjusting the DP scanning timing 0/0/0/0/0 U072 Adjusting the DP original center line 0/0/0 U073 Checking the scanner operation U074 Adjusting the DP input light luminosity U076 Executing DP automatic adjustment U080...
  • Page 42 2KN/2KP-2 Initial setting* Item Section Content of maintenance item 82 cpm 62 cpm Fuser and U161 Setting the fuser control temperature cleaning Control temperature during copying *1, *2 *1, *2 Primary stabilization fuser temperature 175 (120 V)/ 175 (120 V)/ 140 (220-240 V) *1, *2 140 (220-240 V)
  • Page 43 2KN/2KP Initial setting* Item Section Content of maintenance item 82 cpm 62 cpm Mode setting U250 Setting the maintenance cycle 500000 *1, *2 U251 Checking/clearing the maintenance count U252 Setting the destination INCH U253 Switching between double and single counts DOUBLE COUNT(A3/11"...
  • Page 44 2KN/2KP Initial setting* Item Section Content of maintenance item 82 cpm 62 cpm Other U901 Checking/clearing total copy counts by paper feed *1, *2 location U903 Checking/clearing the paper jam count U904 Checking/clearing the call for service counts U905 Checking/clearing count by optional devices U906 Resetting partial operational control U907...

  • Page 45: Contents Of The Maintenance Mode Items

    2KN/2KP (3) Contents of the maintenance mode items Maintenance Description item No. Printing out an own-status report U000 Description Prints out a list of the current settings of all maintenance items, and occurrences of paper jams and service calls. Purpose To check the current setting of the maintenance items, or the occurrences of paper jams and service calls.
  • Page 46 2KN/2KP Maintenance Description item No. Setting the service telephone number U003 Description Sets the telephone number to be displayed when a service call code is detected. Purpose To set (during initial set-up of the machine) the telephone number for contacting service. Method Press the start key.
  • Page 47 2KN/2KP Maintenance Description item No. Copying without paper U005 Description Simulates the copy operation without paper feed. Purpose To check the overall operation of the machine. Remarks Execute this maintenance mode after pull out all four cassettes. Method 1. Press the start key. The screen for selecting an item is displayed. 2.
  • Page 48 2KN/2KP Maintenance Description item No. Displaying the ROM version U019 Description Displays the part number for the ROM fitted to each PWB. Purpose To check the part number or to decide, based on the last digit of the number, if the newest version of ROM is installed.
  • Page 49 2KN/2KP Maintenance Description item No. Memory initializing U021 Description Initializes all settings, except those pertinent to the type of copier, namely each counter, service call history and mode setting. Also initializes backup RAM according to region specification selected in maintenance item U252 “Setting the destination.”...
  • Page 50 2KN/2KP Maintenance Description item No. Evacuation of backup data U026 Description Transfers the backup data of the main PWB to the EEPROM. Purpose Used when replacing the main PWB. Method 1. Press the start key. The screen for executing is displayed. 2.
  • Page 51 2KN/2KP Maintenance Description item No. Checking the operation of the motors U030 Description Drives each motor. Description To check the operation of each motor. Method 1. Press the start key. The screen for selecting an item is displayed. 2. Select the motor to be operated. The selected item is displayed in reverse and the operation starts. Two or more motors can be selected.
  • Page 52 2KN/2KP Maintenance Description item No. Checking switches for paper conveying U031 Description Displays the ON/OFF status of each paper detection switch on the paper conveying path. Purpose To check the operation of the switches for paper conveying. Method 1. Press the start key. A list of switches, the on-off status of which can be checked, are displayed. 2.
  • Page 53 2KN/2KP Maintenance Description item No. Checking the operation of the solenoids U033 Description Applies current to each solenoid in order to check its ON status. Purpose To check the operation of each solenoid. Method 1. Press the start key. The screen for selecting an item is displayed. 2.
  • Page 54 2KN/2KP-1 Maintenance Description item No. Adjustment: Leading edge registration adjustment U034 1. Press the interrupt key. 2. Press the start key to output a test pattern. 3. Change the setting value using the cursor up/down keys. For output example 1, decrease the value. For output example 2, increase the value. Leading edge registration (20 ±...
  • Page 55 2KN/2KP Maintenance Description item No. Setting the printing area for folio paper U035 Description Changes the printing area for copying on folio paper. Purpose To prevent cropped images on the trailing edge or left/right side of copy paper by setting the actual printing area for folio paper.
  • Page 56 2KN/2KP Maintenance Description item No. Adjusting the amount of slack in the paper U051 Description Adjusts the amount of slack in the paper. Purpose Make the adjustment if the leading edge of the copy image is missing or varies randomly, or if the copy paper is Z-folded.
  • Page 57 2KN/2KP Maintenance Description item No. Adjusting duplex U052 Description Adjusts the side registration of the duplex section. Purpose To check the operation of the duplex side registration motor. Method 1. Press the start key. The screen for executing is displayed. 2.
  • Page 58 2KN/2KP Maintenance Description item No. Setting the adjustment of the motor speed U053 Description Performs fine adjustment of the speeds of the motors. Purpose Basically, the setting need not be changed. Modify settings by interlock setting only if faulty images occur. Method Press the start key.
  • Page 59 2KN/2KP Maintenance Description item No. Setting: separate setting U053 1. Select Separate setting at the screen for selecting an item. 2. Select the item to be adjusted. The selected item is displayed in reverse. 3. Change the value using the cursor up/down keys. Display Description Setting...
  • Page 60 2KN/2KP Maintenance Description item No. Adjusting the vertical conveying amount of slack in the paper U054 Description Adjusts the vertical conveying amount of slack in the paper. Purpose Make the adjustment if the leading edge of the copy image is missing or varies randomly, or if the copy paper is Z-folded.
  • Page 61 2KN/2KP Maintenance Description item No. Adjusting the scanner input properties U060 Description Adjusts the image scanning density in text, text and photo, or photo mode. Purpose Used when the entire image appears too dark or light. Adjusts when replacing CIS of DP. Method Press the start key.
  • Page 62 2KN/2KP Maintenance Description item No. Adjusting the shading position U063 Description Changes the shading position of the scanner. Purpose Used when the white line continue to appear longitudinally on the image after the shading plate is cleaned. This is due to flaws or stains inside the shading plate. To prevent this problem, the shading position should be changed so that shading is possible without being affected by the flaws or stains.
  • Page 63 2KN/2KP Maintenance Description item No. Adjusting the scanning magnification U065 Description Adjusts the magnification of the original scanning. Purpose Make the adjustment if the magnification in the main scanning direction is incorrect. Make the adjustment if the magnification in the auxiliary scanning direction is incorrect. Caution Adjust the magnification of the scanner in the following order.
  • Page 64 2KN/2KP Maintenance Description item No. Adjusting the scanner leading edge registration U066 Description Adjusts the scanner leading edge registration of the original scanning. Purpose Make the adjustment if there is a regular error between the leading edges of the copy image and original. Adjustment 1.
  • Page 65 2KN/2KP Maintenance Description item No. Adjusting the optical axis (center line) U067 Description Adjusts the scanner center line of the original scanning. Purpose Make the adjustment if there is a regular error between the center lines of the copy image and original. Adjustment 1.
  • Page 66 2KN/2KP Maintenance Description item No. Adjusting the scanning position for originals from the DP U068 Description Adjusts the position for scanning originals from the document processor. Performs the test copy at the five scanning positions after adjusting. Purpose Used when the image fogging occurs because the scanning position is not proper when the document proces- sor is used.
  • Page 67 2KN/2KP Maintenance Description item No. Adjusting the DP magnification U070 Description Adjusts the DP original scanning speed. Purpose Make the adjustment if the magnification is incorrect in the auxiliary scanning direction when the optional DP is used. Method 1. Press the start key. The screen for selecting an item is displayed. 2.
  • Page 68 2KN/2KP Maintenance Description item No. Adjusting the DP scanning timing U071 Description Adjusts the DP original scanning timing. Purpose Make the adjustment if there is a regular error between the leading or trailing edges of the original and the copy image when the optional DP is used. Method 1.
  • Page 69 2KN/2KP Maintenance Description item No. Caution U071 Check the copy image after the adjustment. If the image is still incorrect, perform the following adjustments in maintenance mode. U404 U071 (P.1-3-81) Completion Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No.
  • Page 70 2KN/2KP Maintenance Description item No. Checking the scanner operation U073 Description Simulates the scanner operation under the arbitrary conditions. Purpose To check the scanner operation. Implementation 1. Press the start key. The screen for selecting an item is displayed. 2. Select the item to be operated. The selected item is displayed in reverse. Display Operation SCANNER MOT...
  • Page 71 2KN/2KP Maintenance Description item No. Adjusting the DP input light luminosity U074 Description Adjusts the luminosity of the exposure lamp for scanning originals from the DP. Purpose Used if the exposure amount differs significantly between when scanning an original on the contact glass and when scanning an original from the DP.
  • Page 72 2KN/2KP-1 Maintenance Description item No. Executing DP automatic adjustment U076 Description Uses a specified original and automatically adjusts the following items in the DP scanning section. Adjusting the DP magnification (U070) Adjusting the DP scanning timing (U071) Adjusting the DP center line (U072) When you run this maintenance mode, the preset values of U070, U071 and U072 will also be updated.
  • Page 73 2KN/2KP Maintenance Description item No. Adjusting exposure in eco-print mode U080 Description Adjusts the image density in the eco-print mode. Purpose To increase or decrease the image density in the eco-print mode. Method Press the start key. The screen for adjustment is displayed. Setting 1.
  • Page 74 2KN/2KP Maintenance Description item No. Outputting the MIP-PG pattern U089 Description Selects and outputs the MIP-PG pattern created by the copier. Purpose To check copier status other than scanner when adjusting image printing, using MIP-PG pattern output (with- out scanning). Method 1.
  • Page 75 2KN/2KP Maintenance Description item No. Adjusting the scanner automatically U092 Description Makes auto scanner adjustments in the order below using the specified original. Adjusting the scanner center line (U067) Adjusting the scanner leading edge registration (U066) Adjusting the scanner magnification in the auxiliary direction (U065) When this maintenance item is performed, the settings in U065, U066 and U067 are also changed.
  • Page 76 2KN/2KP Maintenance Description item No. Adjusting the exposure density gradient U093 Description Changes the exposure density gradient in the manual density mode, depending on respective image quality modes. Purpose To set how the image density is altered by a change of one step in the manual density adjustment for respec- tive image quality modes.
  • Page 77 2KN/2KP Maintenance Description item No. Setting: Gradient in photo mode U093 1. Select the item to be set. The selected item is displayed in reverse. 2. Change the setting value using the cursor up/down keys. Display Setting Setting Initial set- range ting PHOTO DARKER...
  • Page 78 2KN/2KP Maintenance Description item No. Adjusting original size detection U099 Description Checks the operation of the original size detection sensor and sets the sensing threshold value. Purpose To adjust the sensitiveness of the sensor and size judgement time if the original size detection sensor mal- functions frequently due to incident light or the like.
  • Page 79 2KN/2KP Maintenance Description item No. Setting the main high voltage U100 Description Performs the main charging output. Purpose To check the main charging. Do not change the preset value. Start Press the start key. The screen for selecting an item is displayed. Display Description DSP DATA...
  • Page 80 2KN/2KP Maintenance Description item No. Setting the other high voltages U101 Description Sets the developing bias control voltage, the transfer control voltage, and the reverse transfer bias control voltage or checks the output of these voltages. Purpose To check or change the developing bias, the transfer voltage, and the reverse transfer bias voltage. Method Press the start key.
  • Page 81 2KN/2KP Maintenance Description item No. Setting the cleaning interval for the main charger U102 Description Executes a cleaning operation for the main charger and changes the intervals at which the main charger is cleaned. Purpose To check the cleaning operation for the main charger. Also to change the intervals for the operation. Making the intervals longer decreases the stand-by time when starting copying.
  • Page 82 2KN/2KP Maintenance Description item No. Checking the drum count U110 Description Displays the drum counts for checking. Purpose To check the drum status. Method Press the start key. The current drum counts and total drum counts are displayed. Completion Press the stop/clear key. The screen for selecting a maintenance item No. is displayed. Checking/clearing the drum drive time U111 Description...
  • Page 83 2KN/2KP Maintenance Description item No. Adjusting the transfer timing U129 Description Adjusts the ON/OFF timing of transfer charging output for each paper type. Purpose Used when faulty drum separation on paper occurs. Method Press the start key. The screen for adjustment is displayed. Setting 1.
  • Page 84 2KN/2KP Maintenance Description item No. Replenishing toner forcibly U132 Description Replenishes toner forcibly until the toner sensor output value reaches the toner feed start level. Purpose Used when the toner empty is detected frequently. Method 1. Press the start key. The screen for executing is displayed. 2.
  • Page 85 2KN/2KP Maintenance Description item No. Setting for toner applying operation U147 Description Sets the mode for removing charged toner in the developer unit (T7 control: Toner applying operation). Purpose There is no necessity of changing the setting as for initial setting for factory default setting is automatic mode. However, the original whose always print coverage ratio is low (reference: less than 2%) it outputs in large quantities, setting in MODE5 fixed possibility.
  • Page 86 2KN/2KP Maintenance Description item No. Execution flow chart of T7 control (toner applying operation) U147 T7 control is performed when the accumulation output number of sheets from previous T7 control exceeds 500. Start Outputting Does accumulation output number of sheets from previous T7 control exceed 500? To discontinue output once,...
  • Page 87 2KN/2KP Maintenance Description item No. Setting developing motor mode U152 Description Sets the developing motor low speed driving. Purpose Basically, the setting need not be changed. Method Press the start key. The screen for executing is displayed. Setting 1. Select ON or OFF. The selected item is displayed in reverse. Display Description With a developing motor low speed drive setting...
  • Page 88 2KN/2KP Maintenance Description item No. Setting the fuser control temperature U161 Description Changes the fuser control temperature. Purpose Normally no change is necessary. However, can be used to prevent curling or creasing of paper, or solve a fuser problem on thick paper. Method 1.
  • Page 89 2KN/2KP Maintenance Description item No. Stabilizing fuser forcibly U162 Description Stops the stabilization fuser drive forcibly, regardless of fuser temperature. Purpose To forcibly stabilize the machine before the fuser section reaches stabilization temperature. Method 1. Press the start key. The screen for executing is displayed. 2.
  • Page 90 2KN/2KP-2 Maintenance Description item No. Setting the fuser control mode U169 Description ° ° Performs control with the fuser control temperature dropped by 5 F while printing. Purpose To modify settings if a fuser failure occurs as a result of the wear and tear of the heat roller. Method Press the start key.
  • Page 91 2KN/2KP Maintenance Description item No. Turning the fuser heater on U196 Description Turns the fuser heater M, S or L on. Purpose To check fuser heater turning on. Method 1. Press the start key. The screen for selecting an item is displayed. 2.
  • Page 92 2KN/2KP Maintenance Description item No. Turning all LEDs on U200 Description Turns all the LEDs on the operation panel on. Purpose To check if all the LEDs on the operation panel light. Method Press the start key. All the LEDs on the operation panel light. Press the stop/clear key or wait for 10 s.
  • Page 93 2KN/2KP Maintenance Description item No. Setting the presence or absence of a key card or key counter U204 Description Sets the presence or absence of the optional key card or key counter. Purpose To run this maintenance item if a key card or key counter is installed. Method Press the start key.
  • Page 94 2KN/2KP Maintenance Description item No. Setting the paper size for the feeders U208 Description Sets the sizes of paper placed in cassette1, cassette 2 and optional side feeder respectively. Purpose To set the size when the size of paper placed in cassette 1, cassette 2 or optional side feeder is changed. Setting: Paper size for cassettes 1 and 2, and the side feeder 1.
  • Page 95 2KN/2KP Maintenance Description item No. Checking the operation of the side feeder switches U233 Description Displays the status of the respective switches in the optional side feeder. Purpose To check if respective switches in the optional side feeder operate correctly. Method 1.
  • Page 96 2KN/2KP Maintenance Description item No. Setting output tray initialize mode U235 Description Sets whether or not initialization (shift of eject position to main tray) is performed when auto clear is triggered if a multi-job tray is installed to an optional document finisher. Purpose To be set as required according to the user.
  • Page 97 2KN/2KP Maintenance Description item No. Checking the operation of the finisher U240 Description Turns each motor and solenoid of the document finisher ON. Purpose To check the operation of each motor and solenoid of the document finisher. Method 1. Press the start key. The screen for selecting an item is displayed. 2.
  • Page 98 2KN/2KP Maintenance Description item No. U240 3. To turn ON a solenoid with the motor driving, press the interrupt key before selecting the solenoid. The driving motor will start operation, and the selected clutch or the solenoid will remain ON until the interrupt key is pressed again.
  • Page 99 2KN/2KP Maintenance Description item No. U241 Display Switches CRT_R_HP_SW Rear clincher home position sensor (CLNHPS-R) T_OPEN_SW Upper cover switch (UCSW) F_OPEN_SW Front cover switch (FCSW) JTRAY_DT_SW Multi job tray position sensor (MJTPS) JTRAY_P_SW1 Paper detection switch 1 (PDSW1) JTRAY_P_SW2 Paper detection switch 2 (PDSW2) JTRAY_P_SW3 Paper detection switch 3 (PDSW3) JTRAY_P_SW4...
  • Page 100 2KN/2KP Maintenance Description item No. Checking the operation of the DP motors U243 Description Turns the motors in the DP on. Purpose To check the operation of the DP motors. Method 1. Press the start key. The screen for selecting an item is displayed. 2.
  • Page 101 2KN/2KP Maintenance Description item No. Checking messages U245 Description Displays a list of messages on the touch panel of the operation panel. Purpose To check the messages to be displayed. Method 1. Press the start key. 2. Select the item to be displayed. 3.
  • Page 102 2KN/2KP Maintenance Description item No. Setting the paper ejection device U248 Description Adjusts the paper stop timing in the punch mode, the booklet stapling position, and the center folding position for the copier with an document finisher installed. Also, displays and clears the punch-hole scrap count. Purpose Adjustment or registration stop timing in punch mode Adjust if skewed paper conveying occurs or if the copy paper is Z-folded in punch mode.
  • Page 103 2KN/2KP Maintenance Description item No. Setting the paper stop timing U248 1. Select PUNCH POSITION ADJUST at the screen for selecting an item. 2. Change the value using the cursor up/down keys. Description Setting Default Change in value range setting per step Adjustment of the paper stop timing in punch mode -10 to 10...
  • Page 104 2KN/2KP Maintenance Description item No. U248 Copy sample 1 Copy sample 2 4. Press the start key. The value is set. 5. To return to the screen for selecting an item, press the stop/clear key. Setting the center folding position 1.
  • Page 105 2KN/2KP Maintenance Description item No. Setting the punch limit U248 1. Select PUNCH PRESET at the screen for selecting an item. 2. Change the value using the * or # keys. Description Setting range Initial setting Punch limit (max. number of punches) 0 to 999000 100000 The punch limit can be set to any value in increments of 1000.
  • Page 106 2KN/2KP Maintenance Description item No. Setting the destination U252 Description Switches the operations and screens of the machine according to the destination. Purpose To be executed after initializing the backup RAM by running maintenance item U020, in order to return the set- ting to the value before replacement or initialization.
  • Page 107 2KN/2KP Maintenance Description item No. Switching between double and single counts U253 Description Switches the count system for the total counter and other counters. Purpose According to user (copy service provider) request, select if A3/11 x 17 or B4 paper is to be counted as one sheet (single count) or two sheets (double count).
  • Page 108 2KN/2KP Maintenance Description item No. Switching copy operation at toner empty detection U258 Description Selects if continuous copying is enabled after toner empty is detected, and sets the number of copies that can be made after the detection. Purpose To change the copying operation after detection of toner empty status. Method Press the start key.
  • Page 109 2KN/2KP Maintenance Description item No. Setting the paper ejection when copying from the DP U263 Description Sets whether the copies will be ejected in the same or opposite order as the originals when copying from the Purpose Set according to the preference of the user. Method Press the start key.
  • Page 110 2KN/2KP Maintenance Description item No. Setting OEM purchaser code U265 Description Sets the OEM purchaser code. Purpose Sets the code when replacing the main PWB and the like. Or sets the data after executing U020 (Initializing all data). Method Press the start key. Setting 1.
  • Page 111 2KN/2KP Maintenance Description item No. Setting stamp mode ON/OFF U281 Description Sets ON/OFF of the stamp mode. Purpose To turn the setting on, in order to manage, by which machine it was printed. Method Press the start key. The screen for selecting an item is displayed. Setting 1.
  • Page 112 2KN/2KP Maintenance Description item No. Setting the drawer heater ON/OFF U327 Description Sets ON/OFF of the drawer heater and optional side feeder dehumidifier. Purpose To change the setting when dew condensation on the drum is heavy. Method Press the start key. The screen for selecting an item is displayed. Setting 1.
  • Page 113 2KN/2KP Maintenance Description item No. Switching the paper ejection mode U331 Description Sets whether to eject copied sheets with the printed face facing up or down. Purpose To be set according to user request. Method Press the start key. The screen for selecting an item is displayed. Setting 1.
  • Page 114 2KN/2KP Maintenance Description item No. Setting the drum heater mode U335 Description Sets the drum heater to ON or OFF. If the image deletion occurs in an environment of a temperature and humidity widely varies, change the setting to ON3. Purpose Basically, the setting need not be changed.
  • Page 115 2KN/2KP-1 Maintenance Description item No. Specific paper feed location setting for printing function U341 Description Sets a paper feed location specified for printer output (only if a printer kit is installed). Purpose To use a paper feed location only for printer output. Method 1.
  • Page 116 2KN/2KP Maintenance Description item No. Setting the low-power mode U344 Description Changes the control for low-power mode. Purpose According to user request, selects which has priority, the recovery time from low-power or energy saver. Method Press the start key. The screen for selecting an item is displayed. Setting 1.
  • Page 117 2KN/2KP-1 Maintenance Description item No. Adjusting margins of image printing U402 Description Adjusts margins for image printing. Purpose Make the adjustment if margins are incorrect. Adjustment 1. Press the start key. The screen for selecting an item is displayed. 2. Select the item to be adjusted. Setting Initial Change in...
  • Page 118 2KN/2KP-1 Maintenance Description item No. Adjusting margins for scanning an original on the contact glass U403 Description Adjusts margins for scanning the original on the platen. Purpose Make the adjustment if margins are incorrect. Adjustment 1. Press the start key. The screen for selecting an item is displayed. 2.
  • Page 119 2KN/2KP-1 Maintenance Description item No. Adjusting margins for scanning an original from the DP U404 Description Adjusts margins for scanning the original from the DP. Purpose Make the adjustment if margins are incorrect when the optional DP is used. Caution Before making this adjustment, ensure that the following adjustments have been made in maintenance mode.
  • Page 120 2KN/2KP Maintenance Description item No. Adjusting the leading edge registration for memory image printing U407 Description Adjusts the leading edge registration during memory copying. Purpose Make the following adjustment if there is a regular error between the leading edge of the copy image on the front face and that on the reverse face during duplex switchback copying.
  • Page 121 2KN/2KP-1 Maintenance Description item No. Adjusting the laser output U467 Description Adjusts the laser output power. Purpose The setting need not be changed. Method Press the start key. The screen for adjustment is displayed. Setting 1. Change the setting using the cursor up/down keys. Display Description Setting range...
  • Page 122 2KN/2KP Maintenance Description item No. Initializing the scanner NIC U504 Description Initializing the optional scanner NIC to its factory default. Purpose To return to a setup at the time of factory shipments. Method 1. Press the start key. The screen for executing is displayed. 2.
  • Page 123 2KN/2KP Maintenance Description item No. Setting the LDAP U508 Description Enables or disables an LDAP server. Purpose To change the setting to ON when use of an LDAP server is requested. Method Press the start key. The screen for selecting an item is displayed. Setting 1.
  • Page 124 2KN/2KP Maintenance Description item No. Setting scan To FTP U511 Description Sets whether or not scan to FTP setting is enabled if an optional network scanner is installed. Purpose According to user request, changes the setting. Supplement It is not possible to turn setting simultaneously with U510 (Setting the enterprise mode) to ON. Method Press the start key.
  • Page 125 2KN/2KP Maintenance Description item No. Checking/clearing copy counts by paper feed locations U901 Description Displays or clears copy counts by paper feed locations. Purpose To check the time to replace consumable parts. Also to clear the counts after replacing the consumable parts. Method 1.
  • Page 126 2KN/2KP Maintenance Description item No. Checking/clearing the call for service counts U904 Description Displays or clears the service call code counts by types. Purpose To check the service call code status by types. Also to clear the service call code counts after replacing consumable parts. Start Press the start key.
  • Page 127 2KN/2KP Maintenance Description item No. Checking/clearing counts by optional devices U905 Description Displays or clears the counts of the DP, optional document finisher or side feeder. Purpose To check the use of the DP, optional document finisher and side feeder. Also to clear the counts after replacing consumable parts.
  • Page 128 2KN/2KP Maintenance Description item No. Checking/clearing the count value on each ejection location U907 Description Displays and resets the count value of ejected sheets on each ejection location. Purpose Checks the replacement period for maintenance parts. Also resets the count value after replacing the mainte- nance parts.
  • Page 129 2KN/2KP Maintenance Description item No. Clearing the black ratio data U910 Description Clears the accumulated black ratio data for A4 sheet. Purpose To clear data as required at times such as during maintenance service. Method 1. Press the start key. 2.
  • Page 130 2KN/2KP Maintenance Description item No. Checking/clearing the solenoid count value U922 Description Displays and clears the count value of solenoid. Purpose To check the period of replacement of solenoid. Also to clear the count value after replacement. Method Press the start key. Display Description FS SOL COUNT...
  • Page 131 2KN/2KP Maintenance Description item No. Checking machine life counts U928 Description Displays the machine life counts. Purpose To check the machine life counts. Method Press the start key. The current machine life counts is displayed. Completion Press the stop/clear key. The screen for selecting a maintenance item No. is displayed. Relay board maintenance U935 Description...
  • Page 132 2KN/2KP Maintenance Description item No. Setting the cassette disconnection U965 Description Sets whether or not cancellation of cassette disconnection with the reset key is enabled after abnormal cas- sette has been detected. Purpose Enables cancellation of cassette disconnection by user. Method Press the start key.
  • Page 133 2KN/2KP Maintenance Description item No. Displaying the cleaning unit history U987 Description Indicates the past record of machine number and the cleaning counter. Purpose To check the machine number and the cleaning counter. Method Press the start key. The history of a machine number and a cleaning counter is displayed by five cases. Completion Press the stop/clear key.
  • Page 134 2KN/2KP Maintenance Description item No. Checking the scanner operation count U991 Description Displays the scanner operation count. Purpose To check the status of use of the scanner. Method Press the start key. The screen for selecting an item is displayed. Display Description COPY SCAN COUNT...

  • Page 135: Copier Management

    2KN/2KP 1-3-2 Copier management In addition to a maintenance function for service, the copier is equipped with a management function which can be oper- ated by users (mainly by the copier administrator). In this copier management mode, settings such as default settings can be changed.

  • Page 136: Job Accounting

    2KN/2KP (2) Job accounting Total copy count Tracks the total copy counts of all departments and New account print the total in the form of job accounting reports. The Creates new accounts by entering an account ID code total copy count can be reset as necessary. (of up to eight digits), account name, and restrictions 1.

  • Page 137: Default Settings For Copying

    2KN/2KP Printing from unregistered sources (printer) (3) Default settings for copying Authorizes or prohibits printing from computers with Density mode printer drivers that do not support job accounting. Exposure mode changes the default for how the copier This setting is displayed only if Printer Job Accounting adjust how dark or light copying is made.
  • Page 138 2KN/2KP Selecting copy paper for zooming Adjusting automatic density for scanning text docu- Automatically sets the copy paper according to the ments selected zooming level or according to the size of the Adjusts the scanning density when the copier is original document.

  • Page 139: Common Default Settings

    2KN/2KP Erasing borders Customizing additional functions screen Sets the width for erasing borders. Customizes the layout of the additional functions 1. Select [Default erase width] using the cursor up/ screen. down keys and press [Change #]. 1. Select [Customize (User Choice)] ([Customize (Add 2.
  • Page 140 2KN/2KP Specifying the paper weight to the media type Orientation of original document Assigns one of the paper weights to the media type. Sets the orientation of the original document on the 1. Select [Media Type (paper weight)] using the cursor contact glass.

  • Page 141: Weekly Timer

    2KN/2KP Adjusting date and time (5) Weekly timer Sets the date and time. Weekly timer Before proceeding to adjust the date and time, com- Sets the time to turn on and off the copier for each day plete Setting Time Zone. of the week.

  • Page 142: Registering Non-Standard Sizes For Originals

    2KN/2KP Specifying the media type to the MP tray Sets the media type when using the MP tray. Deleting all documents in box 1. Press [Select Media Type]. Deletes all documents in the synergy print boxes at 2. Select the media type. once.

  • Page 143: Checking Total Copy Count

    2KN/2KP (11) Checking total copy count Checks the total copy count on the operation panel and print this information as a counter report. Before printing reports, be sure that the cassette is loaded with 11" x 8 " (or A4) paper. 1.
  • Page 144 2KN/2KP This page is intentionally left blank. 1-3-106...

  • Page 145: Paper Misfeed Detection

    2KN/2KP 1-4 Troubleshooting 1-4-1 Paper misfeed detection (1) Paper misfeed indication When a paper misfeed occurs, the copier immediately stops copying and displays the jam location on the operation panel. Paper misfeed counts sorted by the detection condition can be checked in maintenance item U903. To remove paper jammed in the copier, open front cover, right cover or paper cassette.

  • Page 146: Paper Misfeed Detection Conditions

    2KN/2KP (2) Paper misfeed detection conditions OFSW ORSW DPTSW2 DPTSW1 SBESW FSSW FSW1 MPFDM DUPFSW DUPCSW1 DUPSBM DUPCSW2 FSW2 DUPFDM DUPCSW3 TIMSW2 DUPSRM TIMSW1 DKCSW2 DKCSW1 PFM2 PFM1 FSW3 FSW4 TIMSW3 PFM3 FSW5 TIMSW4 PFM4 Figure 1-4-2 1-4-2...
  • Page 147 2KN/2KP Section Jam code Description Conditions System Cover open Cover is open during copying. Memory read ready time- Secondary paper feed does not start even if 30 s elapse after the registration switch (RSW) is turned on and primary paper feed is complete.
  • Page 148 2KN/2KP Section Jam code Description Conditions Paper feed Misfeed in copier vertical Feed switch 2 (FSW2) does not turn on within 600 ms of deck section paper conveying section 4 convaying switch 1 (DKCSW1) turning on. Feed switch 2 (FSW2) does not turn on within specified time (1591 ms for 82 cpm/2047 ms for 62 cpm) of feed switch 4 (FSW4) turning on.
  • Page 149 2KN/2KP Section Jam code Description Conditions Paper con- Multiple sheets in deck Deck conveying switch 1 (DKCSW1) does not turn off within veying sec- paper feed section 2 550 ms of deck conveying switch 2 (DKCSW2) turning off. tion Multiple sheets in optional Side feeder feed switch (SFFSW) does not turn off within 700 side feeder paper feed ms of its turning on (paper feed from side feeder).
  • Page 150 2KN/2KP Section Jam code Description Conditions Paper con- Misfeed in registration/ Registration switch (RSW) does not turn on within specified veying sec- transfer section (cassette/ time (459 ms for 82 cpm/591 ms for 62 cpm) of feed switch 1 tion MP tray/optional side (FSW1) turning on.
  • Page 151 2KN/2KP Section Jam code Description Conditions Duplex Misfeed in duplex registra- Switchback exit switch (SBESW) does not turn off within spec- section tion section ified time (2000 ms for 82 cpm/2573 ms for 62 cpm) of its turn- ing on. Duplex feed switch (DUPFSW) does not turn on within speci- fied time (1136 ms for 82 cpm/1462 ms for 62 cpm) of exit switch (ESW) turning on.
  • Page 152 2KN/2KP-1 Section Jam code Description Conditions DP section An original jam in the The original registration switch (ORSW) does not turn off switchback section 1 within 5000 pulse. DP timing switch 1 (DPTM2) does not turn on within 2000 pulse. DP timing switch 1 (DPTM2) does not turn off within 2000 pulse.
  • Page 153 2KN/2KP-1 Section Jam code Description Conditions Optional Jam in eject section of When the paper ejection sensor (PEJS) does not turn off document main tray within 2600 ms of its turning on. finisher Jam in cover open During operation, any of safety switches (upper cover switch (UCSW), front cover switch (FCSW), and centerfold unit set switch (CUSSW) is turned off.

  • Page 154: Paper Misfeeds

    2KN/2KP (3) Paper misfeeds Problem Causes/check procedures Corrective measures A piece of paper torn from Check visually and remove it, if any. A paper jam in the copy paper is caught paper feed, convey- around feed switches, deck ing, feedshift, eject or conveying switch, registra- duplex section is indi- tion switch, exit switch,...
  • Page 155 2KN/2KP Causes/check procedures Corrective measures Problem Paper in cassette 3 is Change the paper. A paper jam in the extremely curled. paper feed section is Check if the paper feed pul- Check visually and replace any deformed pulleys. indicated during ley, forwarding pulley and copying (no paper separation pulley of cas-...
  • Page 156 2KN/2KP Causes/check procedures Corrective measures Problem Large size side feeder A paper jam in the Defective side feeder feed Run maintenance item U233 and turn the side feeder feed switch paper feed section is switch 1. 1 on and off manually. Replace the side feeder feed switch 1 if indicated during indication of the corresponding sensor on the touch panel is not copying (no paper...
  • Page 157 2KN/2KP Causes/check procedures Corrective measures Problem Broken feed switch 3 actua- Check visually and replace feed switch 3 if its actuator is broken. A paper jam in the tor. paper feed section is Defective feed switch 3. Run maintenance item U031 and turn feed switch 3 on and off indicated during manually.
  • Page 158 2KN/2KP Causes/check procedures Corrective measures Problem (11) Broken deck conveying Check visually and replace deck conveying switch 1 if its actuator A paper jam in the switch 1 actuator. is broken. paper feed section is Defective deck conveying Run maintenance item U031 and turn deck conveying switch 1 on indicated during switch 1.
  • Page 159 2KN/2KP Problem Causes/check procedures Corrective measures (14) Broken feed switch 3 actua- Check visually and replace feed switch 3 if its actuator is broken. A paper jam in the tor. paper feed section is Defective feed switch 3. Run maintenance item U031 and turn feed switch 3 on and off indicated during manually.
  • Page 160 2KN/2KP Causes/check procedures Corrective measures Problem (16) Broken deck conveying Check visually and replace deck conveying switch 2 if its actuator A paper jam in the switch 2 actuator. is broken. paper feed section is Defective deck conveying Run maintenance item U031 and turn deck conveying switch 2 on indicated during switch 2.
  • Page 161 2KN/2KP Causes/check procedures Corrective measures Problem (18) Large size side feeder A paper jam in the Defective side feeder feed Run maintenance item U031 and turn the side feeder feed switch paper feed section is switch 1. 1 on and off manually. Replace the side feeder feed switch 1 if indicated during indication of the corresponding sensor on the touch panel is not copying (multiple...
  • Page 162 2KN/2KP Causes/check procedures Corrective measures Problem (21) Defective feed switch 1. Run maintenance item U031 and turn feed switch 1 on and off A paper jam in the manually. Replace feed switch 1 if indication of the corresponding paper conveying sec- sensor on the touch panel is not displayed in reverse.
  • Page 163 2KN/2KP Causes/check procedures Corrective measures Problem (27) Defective exit switch. Run maintenance item U031 and turn the exit switch on and off A paper jam in the manually. Replace the exit switch if indication of the correspond- fuser section is indi- ing sensor on the touch panel is not displayed in reverse.
  • Page 164 2KN/2KP Causes/check procedures Corrective measures Problem (32) Broken duplex feed switch Check visually and replace the duplex feed switch if its actuator is A paper jam in the actuator. broken. duplex section is indi- Defective duplex feed Run maintenance item U031 and turn the duplex feed switch on cated during copying switch.
  • Page 165 2KN/2KP Causes/check procedures Corrective measures Problem (34) Broken duplex feed switch Check visually and replace the duplex feed switch if its actuator is A paper jam in the actuator. broken. duplex section is indi- Defective duplex feed Run maintenance item U031 and turn the duplex feed switch on cated during copying switch.
  • Page 166 2KN/2KP Causes/check procedures Corrective measures Problem (37) Defective original feed Run maintenance item U244 and turn the original feed switch on An original jams in switch. and off manually. Replace the switch if indication of the corre- the optional DP is sponding switch on the touch panel is not displayed in reverse.
  • Page 167 2KN/2KP Problem Causes/check procedures Corrective measures (44) The paper entry roller is Check and, if it is dirty, clean it. A paper jam in the dirty with paper powder. optional document The paper entry roller is Check and, if it is deformed or worn, fix or replace it. finisher is indicated deformed or worn.
  • Page 168 2KN/2KP Problem Causes/check procedures Corrective measures (49) The eject roller is dirty with Check and, if it is dirty, clean it. A paper jam in the paper powder. optional document The eject roller is deformed Check and, if it is deformed or worn, fix or replace it. finisher is indicated or worn.
  • Page 169 2KN/2KP Causes/check procedures Corrective measures Problem (55) The paper forwarding pul- Check and, if it is dirty, clean it. A paper jam in the ley, upper or lower forward- optional document ing roller is dirty with paper finisher is indicated powder.

  • Page 170: Self-Diagnosis

    2KN/2KP 1-4-2 Self-diagnosis (1) Self-diagnostic function This unit is equipped with a self-diagnostic function. When a problem is detected, copying is disabled and the problem dis- played as a code consisting of C followed by a number, indicating the nature of the problem. A message is also displayed requesting the user to call for service.
  • Page 171 2KN/2KP Partial operation control If any of the following calls for service is detected, partial operation control will be activated. After taking measures against the cause of trouble, run maintenance item U906 to reset partial operation control. Code Contents C0410 DP communication problem C0420 Side feeder* communication error...

  • Page 172: Self Diagnostic Codes

    2KN/2KP (2) Self diagnostic codes *The option equipment. Remarks Code Contents Causes Check procedures/corrective measures C0060 Main PWB type mismatch error Poor contact in the Check the connection of connector YC26 on connector termi- the main PWB and relay board, and the con- nals.
  • Page 173 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C0210 CPU communication problem Defective main Replace the main PWB. • Synchronization cannot be taken PWB. between the main CPU and engine Poor contact in the Check the connection of connector YC1 on CPU.
  • Page 174 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C0420 Side feeder* communication error Poor contact in the Check the connection of connector YC15 on • A communication error from side connector termi- the engine PWB and the connector YC3 on feeder is detected 10 times in succes- nals.
  • Page 175 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C0640 Hard disk problem Poor contact in the Check the connection of connector YC11 on • The hard disk cannot be accessed. connector termi- the engine PWB and the hard disk, and the nals.
  • Page 176 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C1010 Lift motor 1 error Broken gears or Replace lift motor 1. • When cassette 1 is inserted, lift limit couplings of lift switch 1 does not turn on within 33 s of motor 1.
  • Page 177 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C1030 Lift motor 3 error Broken gears or Replace lift motor 3. • When cassette 3 is inserted, lift limit couplings of lift switch 3 does not turn on within 33 s of motor 3.
  • Page 178 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C1150 Side feeder lift motor going down Poor contact of Reinsert the connector. Also check for conti- error (optional side feeder) lower limit detec- nuity within the connector cable. If none, • Lower limit detection switch does not tion switch connec- repair or replace the cable.
  • Page 179 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C2250 Cleaning motor error Poor contact in the Check the connection of connector YC5 on • LOCK signal remains high for 1 s, drive motor con- the engine PWB. Reinsert the connector. 200 ms after the cleaning motor has nector terminals.
  • Page 180 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C2720 PTC cleaning motor error Poor contact in the Check the connection of connector YC5 on • LOCK signal remains high for 1 s, drive motor con- the engine PWB. Reinsert the connector. 200 ms after the PTC cleaning motor nector terminals.
  • Page 181 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C3210 CIS lamp problem Defective DP main Replace the DP main PWB and check for • After the reading starting, when input PWB. correct operation. value at the time of CIS illumination Poor contact in the Check the connection of connector YC2 on does not exceed the threshold value...
  • Page 182 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C4000 Polygon motor synchronization prob- Poor contact in the Reinsert the connector. Also check for conti- polygon motor con- nuity within the connector cable. If none, • The revolution does not reach the sta- nector terminals.
  • Page 183 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C5100 Main high-voltage error Defective high volt- Replace the high voltage PWB and check • While the main high-voltage output age PWB. for correct operation. remote signal is on, an alarm signal is Leak of main high- Check the main charger unit and replace if detected continuously for 400 ms.
  • Page 184 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C6000 Fuser heater lamp break Installation defec- Check the mounting state of the fuser ther- • The fuser temperature does not tiveness on fuser mistor M and S. If any problem is found, increase for 40 s after the fuser heat- thermistor M and S.
  • Page 185 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C6400 Zero-cross signal error Poor contact in the Check the connection of connector YC11 on • The engine PWB does not detect the connector termi- the engine PWB and YC6 on the DC power zero-crossing signal (Z CROSS SIG) nals.
  • Page 186 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C7810 Short-circuited external thermistor Poor contact in the Check the connection of connector YC13 on • The thermistor input value is 0.5 V or connector termi- the engine PWB and the continuity across less.
  • Page 187 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C8040 Document finisher* lower paper con- Phase shift of the Correct the phase of the lower paper con- veying belt problem lower paper con- veying belt and check for correct operation. • During initialization, the intermediate veying belt.
  • Page 188 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C8150 Document finisher* multi job tray Loose connection Reinsert the connector. Also check for conti- problem of the multi job tray nuity within the connector cable. If none, • When the multi job tray is not detected elevation motor remedy or replace the cable.
  • Page 189 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C8180 Document finisher* rear upper side Loose connection Reinsert the connector. Also check for conti- registration guide problem of the rear upper nuity within the connector cable. If none, • During initialization, the rear upper side registration remedy or replace the cable.
  • Page 190 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C8210 Document finisher* front stapler prob- Loose connection Reinsert the connector. Also check for conti- of the front stapler nuity within the connector cable. If none, • During initialization, the front stapler is motor connector.
  • Page 191 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C8240 Document finisher* rear clincher Loose connection Reinsert the connector. Also check for conti- problem of the rear clincher nuity within the connector cable. If none, • During initialization, the rear clincher is motor connector.
  • Page 192 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C8320 Document finisher* centerfold unit Loose connection Reinsert the connector. Also check for conti- centering plate problem of the centering nuity within the connector cable. If none, • During initialization, the centering plate plate motor con- remedy or replace the cable.
  • Page 193 2KN/2KP Remarks Code Contents Causes Check procedures/corrective measures C9050 DP lift motor going down error Loose connection Reinsert the connector. Also check for conti- • The pulse count raised to 10000 at lift- of the DP lift motor nuity within the connector cable. If none, ing, however, the DP lift lower limit connector.

  • Page 194: Image Formation Problems

    2KN/2KP 1-4-3 Image formation problems (1) No image (2) No image (3) Image is too (4) Background is (5) A white line appears appears light. visible. appears longitu- (entirely white). (entirely black). dinally. See page 1-4-50 See page 1-4-51 See page 1-4-52 See page 1-4-52 See page 1-4-52 (6) A black line...
  • Page 195 2KN/2KP (21) There is a regu- (22) A line appears (23) A line appears lar error at the leading or periodically. between the trailing edge. leading edges of the original and copy image when the DP is used. 70 mm 64 mm 64 mm 64 mm...

  • Page 196: No Image Appears (Entirely Black)

    2KN/2KP (2) No image appears (entirely black). Copy example Causes Check procedures/corrective measures No main Poor insertion main Reinstall the main charger unit. charging. charger unit. Broken main charger Replace the wire (see page 1-5-27). wire. Leaking main charger Clean the main charger wire and grid. housing.

  • Page 197: Image Is Too Light

    2KN/2KP (3) Image is too light. Copy example Causes Check procedures/corrective measures Insufficient toner. If the display shows the message requesting toner replen- ishment, replace the toner container. Deteriorated toner. Perform the drum refresh operation (see page 1-3-105). The transfer The connector terminals Reinsert the connector.

  • Page 198: A Black Line Appears Longitudinally

    2KN/2KP (6) A black line appears longitudinally. Copy example Causes Check procedures/corrective measures Dirty or flawed drum. Clean the drum. If the drum is flawed, replace the drum (see page 1-5-44). Deformed or worn cleaning blade. Replace the cleaning blade. Dirty contact glass.

  • Page 199: Black Dots Appear On The Image

    2KN/2KP (9) Black dots appear on the image. Copy example Causes Check procedures/corrective measures Dirty or flawed drum. Clean the drum. If the drum is flawed, replace the drum (see page 1-5-44). Dirty contact glass. Clean the contact glass. Dirty DP section. Clean the DP section.

  • Page 200: Paper Creases

    2KN/2KP (13) Paper creases. Copy example Causes Check procedures/corrective measures Paper curled. Check the paper storage conditions. Paper damp. Check the paper storage conditions. Defective pressure nuts. Tighten the fuser pressure nuts. Defective separation. Check the heat roller separation claws. (14) Offset occurs.

  • Page 201: Fusing Is Poor

    2KN/2KP (16) Fusing is poor. Copy example Causes Check procedures/corrective measures Wrong paper. Check if the paper meets specifications. Also check if the specifying the paper type of machine default is proper (see page 1-3-101). Defective pressure nuts. Tighten the fuser pressure nuts. Flawed heat roller or press roller.

  • Page 202: There Is A Regular Error Between The Centers Of The Original And Copy Image When The Dp Is Used

    2KN/2KP (20) There is a regular error between the centers of the original and copy image when the DP is used. Copy example Causes Check procedures/corrective measures Misadjusted center line. Readjust the DP center line (see page 1-3-31). (21) There is a regular error between the leading edges of the original and copy image when the DP is used. Copy example Causes Check procedures/corrective measures...

  • Page 203: Electric Problems

    2KN/2KP 1-4-4 Electric problems Troubleshooting to each failure must be in the order of the numbered symptoms. Body Problem Causes Check procedures/corrective measures 1. The power cord is not Check the contact between the power plug and the outlet. The machine does plugged in properly.
  • Page 204 2KN/2KP Problem Causes Check procedures/corrective measures 1. Poor contact in the trans- Reinsert the connector. Also check for continuity within the con- The transfer motor fer motor connector ter- nector cable. If none, remedy or replace the cable. does not operate minals.
  • Page 205 2KN/2KP Problem Causes Check procedures/corrective measures (10) 1. Poor contact in the feed Reinsert the connector. Also check for continuity within the con- The feed motor does motor connector termi- nector cable. If none, remedy or replace the cable. not operate. nals.
  • Page 206 2KN/2KP Problem Causes Check procedures/corrective measures (14) 1. Poor contact in the toner Reinsert the connector. Also check for continuity within the con- The toner motor does motor connector termi- nector cable. If none, remedy or replace the cable. not operate. nals.
  • Page 207 2KN/2KP Problem Causes Check procedures/corrective measures (23) 1. Poor contact in the Reinsert the connector. Also check for continuity within the con- The duplex side reg- duplex side registration nector cable. If none, remedy or replace the cable. istration motor does motor connector termi- not operate.
  • Page 208 2KN/2KP Problem Causes Check procedures/corrective measures (27) 1. Broken cooling fan motor Check for continuity across the coil. If none, replace cooling fan Cooling fan motor 3 3 coil. motor 3. does not operate. 2. Poor contact in cooling Reinsert the connector. Also check for continuity within the con- fan motor 3 connector nector cable.
  • Page 209 2KN/2KP Problem Causes Check procedures/corrective measures (32) 1. Broken developing fan Check for continuity across the coil. If none, replace developing Developing fan motor motor 1 or 2 coil. fan motor 1 or 2. 1 or 2 does not oper- 2.
  • Page 210 2KN/2KP Problem Causes Check procedures/corrective measures (35) 1. Broken PWB fan motor 1 Check for continuity across the coil. If none, replace PWB fan PWB fan motor 1 or 2 or 2 coil. motor 1 or 2. does not operate. 2.
  • Page 211 2KN/2KP Problem Causes Check procedures/corrective measures (40) 1. Broken MP solenoid coil. Check for continuity across the coil. If none, replace the MP sole- The MP solenoid noid. does not operate. 2. Poor contact in the MP Reinsert the connector. Also check for continuity within the con- solenoid connector termi- nector cable.
  • Page 212 2KN/2KP Problem Causes Check procedures/corrective measures (46) 1. Poor contact in the expo- Reinsert the connector. Also check for continuity within the con- The exposure lamp sure lamp connector ter- nector cable. If none, remedy or replace the cable. does not turn on. minals.
  • Page 213 2KN/2KP Problem Causes Check procedures/corrective measures (52) 1. Faulty connection of con- See page 1-4-51. No transfer bias is nector of transfer high output. voltage PWB. 2. Defective engine PWB. 3. Defective transfer high voltage PWB. (53) 1. Defective original detec- If the level of YC9-2 on the scanner PWB does not go low when The original size is tion switch.
  • Page 214 2KN/2KP Problem Causes Check procedures/corrective measures (59) 1. Poor contact in paper Reinsert the connector. Also check for continuity within the con- The message empty switch 4 connector nector cable. If none, remedy or replace the cable. requesting paper to terminals.
  • Page 215 2KN/2KP Problem Causes Check procedures/corrective measures (63) 1. Poor contact in the MP Reinsert the connector. Also check for continuity within the con- The size of paper on paper length size switch nector cable. If none, remedy or replace the cable. the MP tray is not connector terminals.
  • Page 216 2KN/2KP Problem Causes Check procedures/corrective measures 1. Poor contact in the origi- Reinsert the connector. Also check for continuity within the con- The original feed nal feed motor connector nector cable. If none, remedy or replace the cable. motor does not oper- terminals.
  • Page 217 2KN/2KP Problem Causes Check procedures/corrective measures 1. Poor contact in the CIS Reinsert the connector. Also check for continuity within the con- The CIS does not connector terminals. nector cable. If none, remedy or replace the cable. turn on. 2. Defective DP inverter Run maintenance item U061 and check if the CIS turns on when PWB.

  • Page 218: Mechanical Problems

    2KN/2KP 1-4-5 Mechanical problems Body Problem Causes/check procedures Corrective measures Check if the surfaces of the following pulleys Clean with isopropyl alcohol. No primary paper feed. are dirty with paper powder: paper feed pul- ley, forwarding pulley, separation pulley, MP paper feed pulley, MP forwarding pulley and MP separation pulley.
  • Page 219 2KN/2KP Problem Causes/check procedures Corrective measures Check if the pulleys, rollers and gears operate Grease the bearings and gears. Abnormal noise is heard. smoothly. Check if the following motors are installed Check visually and remedy if necessary. correctly: paper feed motor 1, paper feed motor 2, paper feed motor 3, paper feed motor 4 and MP feed motor.
  • Page 220 2KN/2KP Problem Causes/check procedures Corrective measures The surfaces of the DP forwarding pulleys or Check and clean them with isopropyl alcohol No primary original feed. DP feed belts are dirty with paper powder. if they are dirty. Check if the DP forwarding pulley is Check visually and replace any deformed deformed.

  • Page 221: Assembly And Disassembly

    2KN/2KP 1-5 Assembly and Disassembly 1-5-1 Precautions for assembly and disassembly (1) Precautions Before starting disassembly, press the Power key on the operation panel to off. Make sure that the Power lamp is off before turning off the main power switch. And then unplug the power cable from the wall outlet. Turning off the main power switch before pressing the Power key to off may cause damage to the equipped hard disk.
  • Page 222 A black-colored band when seen through the left side window A shiny or gold-colored band when seen through the right side window The above will reveal that the toner container is a genuine Kyocera Mita branded toner container, otherwise, it is a coun- terfeit.

  • Page 223: Paper Feed Section

    2KN/2KP 1-5-2 Paper feed section (1) Detaching and refitting the paper feed pulley, forwarding pulley and separation pulley of cassette 1 and 2 Follow the procedure below to clean or replace the paper feed pulley, forwarding pulley or separation pulley of cassette 1 and 2.
  • Page 224 2KN/2KP Detaching the paper feed pulley and forwarding pulley of cassette 1 6. Remove connector, band and two stop rings, and then open the primary paper feed unit of cassette 1. Stop ring Connector Primary paper feed unit Band of cassette 1 Stop ring Figure 1-5-5 7.
  • Page 225 2KN/2KP 10. Release the hook of the paper feed pulley unit and push down the unit in the direction of the arrow. 11. Remove the paper feed pulley unit from the primary paper feed unit of cassette 1. Primary paper feed unit of cassette 1 Hook Paper feed...
  • Page 226 2KN/2KP-1 15. Clean or replace the paper feed pulley and forwarding pulley, and refit the pulleys to the paper feed pulley unit. * When replacing the paper feed pulley, make sure that the one-way clutch of both the pul- ley and the gear is placed toward the front side of the machine.
  • Page 227 2KN/2KP 18. Clean or replace the separation pulley and then reattach the pulley to the separation Projection pulley unit. * When replacing the separation pulley, make sure that the projection of the torque limiter fits in the separation pulley groove. 19.
  • Page 228 2KN/2KP Detaching the paper feed pulley and forwarding pulley of cassette 2 23. Remove the stop ring and slide the joint in the direction of the arrow. 24. Remove two stop rings and open the pri- mary paper feed unit of cassette 2. Stop ring Stop ring Stop ring...
  • Page 229 2KN/2KP Removing the separation pulley of cassette 2 28. Remove the separation pulley unit from the Primary paper feed unit primary paper feed unit of cassette 2. of cassette 2 Separation pulley unit Figure 1-5-17 29. Remove the separation pulley from the sep- aration pulley unit, and then clean or replace the pulley (see page 1-5-6).
  • Page 230 2KN/2KP (2) Detaching and refitting the paper feed pulley, forwarding pulley and separation pulley of cassette 3 and 4 Follow the procedure below to clean or replace the paper feed pulley, forwarding pulley or separation pulley of cassette 3 and 4. Explanation of an detaching and refitting procedure is given only a cassette 3 since cassettes 3 and 4 are the same feed units.
  • Page 231 2KN/2KP 5. Remove the stop ring and slide the joint in Stop ring the direction of the arrow. Stop ring 6. Remove each stop ring of the primary paper feed unit front and rear and open the unit in the direction of the arrow. Joint Stop ring Primary paper...
  • Page 232 2KN/2KP-1 9. Remove two stop rings and bushes, and Bush then pull out the paper feed pulley shaft. 10. Remove the paper feed pulley and paper Paper feed pulley unit feed pulley gear from the paper feed pulley unit. Stop ring Paper feed pulley shaft Bush...
  • Page 233 2KN/2KP Detaching the separation pulley 13. Remove the separation pulley unit from the primary paper feed unit. Primary paper feed unit Separation pulley unit Figure 1-5-26 Stop ring 14. Remove the bush and stop ring from the separation pulley unit, and then remove the separation pulley.

  • Page 234: Pressure Adjustment Of Separation Pulley (Reference)

    2KN/2KP-1 (3) Pressure adjustment of separation pulley (reference) Perform the following adjustment if no paper feed or multiple sheets of paper occurs for feeding from the cassette. Caution: Basically, adjustment is not needed. Perform the adjustment only when a paper feed performance gets worse remarkably with the paper type.

  • Page 235: Adjusting The Center Line For Cassette 1 Or 2

    2KN/2KP (4) Adjusting the center line for cassette 1 or 2 Perform the following adjustment if there is a regular error between the center lines of the copy image and original when the paper is fed from cassette 1 or 2. Caution After performing the following adjustment, adjust the position of the damper (see page 1-5-16).
  • Page 236 2KN/2KP Adjusting position of the damper Procedure When removing cassette 1 or 2 backwards; Pull and rotate the damper clockwise for the removed levels. When removing cassette 1 or 2 forwards; Pull and rotate the damper counter-clockwise for the removed levels. The damper is adjustable to 2-level in both clockwise and counter-clockwise directions.

  • Page 237: Detaching And Refitting The Mp Unit

    2KN/2KP (5) Detaching and refitting the MP unit Procedure 1. Remove the screw and then remove the MP tray developing fan cover. 2. Open the MP tray. Developing fan cover Figure 1-5-33 3. Remove two screws and then remove the lower right rear cover.
  • Page 238 2KN/2KP-1 5. Remove the connector and then remove the Connector MP tray. MP tray Figure 1-5-36 6. Remove two connectors and two screws and then remove the MP unit. Connector Connector MP unit Figure 1-5-37 1-5-18...

  • Page 239: Detaching And Refitting The Mp Paper Feed Pulley, Mp Forwarding Pulley And Mp Separation Pulley

    2KN/2KP (6) Detaching and refitting the MP paper feed pulley, MP forwarding pulley and MP separation pulley Follow the procedure below to clean or replace the MP paper feed pulley, MP forwarding pulley and MP separation pulley. Procedure Projection 1. Remove the MP unit (see page 1-5-17). Upper MP unit 2.
  • Page 240 2KN/2KP 6. Release the MP solenoid lever in the direc- Stop ring tion of the arrow. Remove the stop ring and slide the joint in the direction of the arrow. MP solenoid lever Joint Figure 1-5-40 7. Remove two stop rings and bushes, and then remove the MP paper feed pulley unit from the upper MP unit.
  • Page 241 2KN/2KP-1 8. Remove the stop ring and two bushes MP paper from the MP paper feed pulley unit and pull feed pulley out the MP paper feed pulley shaft. 9. Remove the MP paper feed pulley and MP MP paper feed MP paper feed pulley shaft paper feed pulley gear from the MP paper...
  • Page 242 2KN/2KP Removing the MP separation pulley 13. Remove two springs from the lower MP unit. 14. Remove the MP separation pulley unit from the lower MP unit. 15. Remove two stoppers, bush and stop ring from the MP separation pulley unit, and then remove the MP separation pulley.
  • Page 243 2KN/2KP 17. Refit he MP separation pulley unit to the lower MP unit. Refit the stoppers to the center grooves. Stopper Stopper Center groove Center groove Figure 1-5-47 18. Refit the MP paper feed pulley unit to the upper MP unit. 19.

  • Page 244: Pressure Adjustment Of Mp Separation Pulley

    2KN/2KP-1 (7) Pressure adjustment of MP separation pulley Perform the following adjustment if no paper feed or multiple sheets of paper occurs for feeding from the MP tray. Procedure Start Select the MP tray for Refit two springs and then paper feeding.

  • Page 245: Main Charging Section

    2KN/2KP 1-5-3 Main charging section (1) Detaching and refitting the main charger unit Procedure 1. Open front cover and turn the lever A2 to the left. 2. Remove the toner container. 3. Remove two screws and then pull out the image formation unit.

  • Page 246: Detaching And Refitting The Main Charger Grid

    2KN/2KP (2) Detaching and refitting the main charger grid Follow the procedure below to clean or replace the main charger grid. Procedure 1. Remove the main charger unit (see page 1- Main charger grid 5-25). 2. Remove the screw and then remove the main charger grid.

  • Page 247: Detaching And Refitting The Main Charger Wire

    2KN/2KP (4) Detaching and refitting the main charger wire Follow the procedure below when the charger wire is broken or to be replaced. Caution Use the specified tungsten wire for the charger wire. The part of the wire wrapped around the charger spring must not protrude from the charger housing. The cut end of the charger wire must not protrude more than 2 mm from under the charger wire retainer pin.

  • Page 248: Optical Section

    2KN/2KP 1-5-4 Optical section (1) Detaching and refitting the exposure lamp Follow the procedure below to replace the exposure lamp. Fitting requires following parts Band (P/N: M21AH010) Procedure 1. Remove two screws of hinge retainer at the rear side of the left hinge and then remove the retainer from DP.
  • Page 249 2KN/2KP 6. Remove the connector and band inside the scanner unit. * Cut out the band using nippers. Connector Band Figure 1-5-58 7. Release the inserted parts of wire guide and then remove the guide from the mirror 1 frame. 8.
  • Page 250 2KN/2KP 12. Reattach the wire guide to mirror 1 frame. Connector Wire the electric wire from the exposure Wire guide lamp along the wire guide. (1) * Be sure that the electric wire along the wire Wire of guide is well-strained. the exposure lamp 13.

  • Page 251: Detaching And Refitting The Scanner Wires

    2KN/2KP (2) Detaching and refitting the scanner wires Take the following procedure when the scanner wires are broken or to be replaced. (2-1)Detaching the scanner wires Screw Procedure 1. Remove three screws and slide the upper left cover to machine rear. Remove the upper left cover.
  • Page 252 2KN/2KP 7. Release the inserted part of the operation unit upper cover and then remove the cover. Inserted parts Operation unit upper cover Figure 1-5-66 8. Remove each screw, and then remove the slit holder plate and slit glass. Slit holder Slit glass plate Slit holder...

  • Page 253: Fitting The Scanner Wires

    2KN/2KP 10. Remove the mirror 1 frame from the scanner Hole unit, passing the lever of mirror 1 frame rear through the hole of the scanner unit rear frame. Lever Mirror 1 frame Figure 1-5-69 11. Remove the round terminals of the scanner Round terminals wire in the scanner unit left side from the scanner wire spring.
  • Page 254 2KN/2KP 3. Hook the round terminals onto the catches on the inside of the scanner unit. (1) 4. Loop the scanner wires around the outer grooves in the pulleys on the mirror 2 frame, winding from below to above. 5. Loop the scanner wires around the grooves in the pulleys at the scanner unit right, winding from above to below. (3) 6.
  • Page 255 2KN/2KP 14. Remove the scanner wire stoppers. 15. Remove two screws from each of the frame Frame securing tools securing tools and then the tools. 16. Focusing on the locating ball of the wire drum, move aside the wires to inside. 17.

  • Page 256: Detaching The Laser Scanner Unit

    2KN/2KP (3) Detaching the laser scanner unit Follow the procedure below to replace the laser scanner unit. Procedure 1. Remove the hinge retainer and open DP until it becomes perpendicular (see page 1- 5-28). 2. Remove the left upper cover, right upper cover and contact glass (see page 1-5-28).
  • Page 257 2KN/2KP 8. Remove two connectors of the machine left. 9. Unhook the wires from the hook. Hook Connector Wires Connector Figure 1-5-77 Holes 10. Remove four screws holding the laser scan- ner unit from holes inside the laser scanner unit. Holes Figure 1-5-78 11.
  • Page 258 2KN/2KP 12. Replace the laser scanner unit and attach the unit. * When attaching the laser scanner unit, check that two projections of the unit are inserted to the holes of inside the machine. Hole Hole Laser scanner unit Projection Projection Figure 1-5-80 13.

  • Page 259: Detaching And Refitting The Isu (Reference)

    2KN/2KP (4) Detaching and refitting the ISU (reference) Follow the procedure below to check or replace the ISU. Caution After replacing the ISU, perform (6-2) Adjusting the position of the ISU (see page 1-5-43). Fitting requires the following tools Two positions pins (P/N 18568120) Procedure 1.
  • Page 260 2KN/2KP 6. Check or replace the ISU. Positioning pins 7. Position ISU at the frame hole number as same as the number indicated on the lens of ISU image scanning unit and insert two positioning pins to the holes. * Example: When 7 is indicated on the lens, position ISU at the positioning hole 7 indi- cated on the scanner unit, and inset two positioning pins.

  • Page 261: Adjusting The Longitudinal Squareness (Reference)

    2KN/2KP-1 (5) Adjusting the longitudinal squareness (reference) Perform the following adjustment if the copy image is longitudinally skewed (longitudinal squareness is not obtained). Caution: Adjust the amount of slack in the paper at the registration roller first (see page 1-3-18). Check for the longitudinal square- ness of the copy image, and if it is not obtained, perform the longitudinal squareness adjustment.

  • Page 262: Adjusting Scanner Image Lateral Squareness (Reference)

    2KN/2KP-1 (6) Adjusting scanner image lateral squareness (reference) Perform the following adjustment if the copy image is laterally skewed (lateral squareness not obtained). Caution: Perform (6-1) Adjusting the position of the laser scanner unit first and check for lateral squareness of the copy image. If squareness is not obtained, perform (6-2) Adjusting the position of ISU (see page 1-5-43).

  • Page 263: Adjusting The Position Of The Isu

    2KN/2KP-1 (6-2)Adjusting the position of the ISU Perform the following adjustment if the leading and trailing edges of the copy image are laterally skewed (lateral square- ness not obtained). Caution: Before making the following adjustment, output a 1 dot LINE PG pattern in maintenance item U089 to use as the original for the adjustment.

  • Page 264: Drum Section

    2KN/2KP 1-5-5 Drum section (1) Detaching and refitting the drum Follow the procedure below to clean or replace the drum. Cautions: Avoid direct sunlight and strong light when detaching and refitting the drum. Hold the drum at the ends and never touch the drum surface. After removing the drum, keep it in the drum case or storage bag to protect the surface from light.

  • Page 265: Detaching And Refitting The Drum Heater

    2KN/2KP (2) Detaching and refitting the drum heater Follow the procedure below to replace the drum. Procedure 1. Remove the drum (see page 1-5-44). 2. Remove two screws and then remove the front drum flange from the drum. 3. Remove two connectors connected to the inner side in the front drum flange.
  • Page 266 2KN/2KP 5. Pull out the drum stay from the drum. 6. Remove the drum heater from the drum. Drum Drum stay Drum heater Figure 1-5-95 7. Replace the drum. 8. Insert the drum heater to the drum. 9. Refit the drum stay to the drum. 10.

  • Page 267: Detaching And Refitting The Drum Heater Electrode

    2KN/2KP (3) Detaching and refitting the drum heater electrode Follow the procedure below to replace the drum heater electrode. Procedure 1. Open the front cover. Turn lever A2 to left. 2. Remove the screw and then remove the cover. 3. Remove the connector. Connector Cover Figure 1-5-96...

  • Page 268: Developing Section

    2KN/2KP 1-5-6 Developing section (1) Detaching and refitting the developing unit Procedure 1. Open front cover and then remove the toner container. 2. Remove the inner cover (see page 1-5-47). 3. Remove two screws and pull out the image formation unit. 4.

  • Page 269: Transfer Section

    2KN/2KP 1-5-7 Transfer section (1) Detaching and refitting the transfer unit Procedure 1. Open the front cover and pull out the paper conveying unit. Rear transfer guide 2. Remove the screw and then remove the rear transfer guide. Figure 1-5-101 3.
  • Page 270 2KN/2KP 5. Remove the connector and band of the paper conveying unit front. Band Connector Figure 1-5-103 6. After sliding the transfer unit to end and pull- Transfer unit ing out the front shaft from the frame, pull out the rear coupling from the hole of the frame as shown in the figure, and remove the transfer unit from the paper conveying unit.

  • Page 271: Detaching And Refitting The Transfer Belt

    2KN/2KP (2) Detaching and refitting the transfer belt Follow the procedure below to replace the transfer belt. Caution: When handling the transfer belt, hold the both end of the transfer belt (within 10 mm), never touch the surface with bare hand.
  • Page 272 2KN/2KP 5. Remove the transfer belt from the transfer unit. Transfer unit Transfer belt Figure 1-5-107 6. Replace the transfer belt and attach the belt to the transfer unit. * After installing the transfer belt, rotate the transfer belt roller 2 or 3 times, it turns, and check that the belt does not been stranded to the belt holder front and rear.

  • Page 273: Detaching And Refitting The Transfer Roller

    2KN/2KP (3) Detaching and refitting the transfer roller Follow the procedure below to replace the transfer roller. Procedure 1. Remove the transfer unit (see page 1-5-49). 2. Remove the transfer belt (see page 1-5-51). 3. Remove the screw of the transfer unit rear and then remove the terminal, spring and pin.

  • Page 274: Cleaning Section

    2KN/2KP 1-5-8 Cleaning section (1) Detaching and refitting the cleaning unit Procedure 1. Open front cover and then remove the toner container. 2. Remove two screws and pull out the image formation unit. 3. Remove the connector of the image forma- tion unit left.

  • Page 275: Detaching And Refitting The Cleaning Blade

    2KN/2KP (2) Detaching and refitting the cleaning blade Follow the procedure below to replace the cleaning blade. Procedure 1. Remove the cleaning unit (see page 1-5- Upper cleaning cover 54). 2. Release two claws and then remove the upper cleaning cover from the cleaning unit. Claw Claw Cleaning unit...

  • Page 276: Charge Erasing Section

    2KN/2KP 1-5-9 Charge erasing section (1) Detaching and refitting the PTC unit Procedure 1. Open the front cover. Turn lever A2 to left. 2. Remove the inner cover (see page 1-5-47). 3. Remove the connector and pull out the PTC unit.

  • Page 277: Detaching And Refitting The Ptc Wire

    2KN/2KP (3) Detaching and refitting the PTC wire Follow the procedure below when the charger wire is broken or to be replaced. Precautions Use the specified tungsten wire for the PTC wire. The part of the wire wrapped around the charger spring must not protrude from the PTC housing. The cut end of the PTC wire must not protrude more than 2 mm from under the charger pin.

  • Page 278: Fuser Section

    2KN/2KP 1-5-10 Fuser section (1) Detaching and refitting the fuser unit Procedure 1. Open the front cover and pull out the paper conveying unit. 2. Remove the rear transfer guide. 3. Remove the screw from the paper convey- ing unit front, and then remove the fuser unit retainer.

  • Page 279: Detaching And Refitting The Lower Cleaning Roller

    2KN/2KP (2) Detaching and refitting the lower cleaning roller Follow the procedure below to check or replace the lower cleaning roller. Procedure 1. Remove the fuser unit (see page 1-5-58). Fuser unit 2. Remove two screws and then remove the lower cleaning roller unit from the fuser unit.

  • Page 280: Detaching And Refitting The Press Roller

    2KN/2KP (3) Detaching and refitting the press roller Follow the procedure below to replace the press roller. Procedure 1. Remove the fuser unit (see page 1-5-58). Fuser unit 2. Remove the lower cleaning roller unit (see page 1-5-59). 3. Turn the nuts of the fuser unit front and rear with the box end wrench and release the fuser pressure.

  • Page 281: Detaching And Refitting The Cleaning Felt

    2KN/2KP (4) Detaching and refitting the cleaning felt Follow the procedure below to replace the cleaning felt. Procedure 1. Remove the fuser unit (see page 1-5-58). 2. Remove rear pin and front screw, and then Upper fuser cover remove the upper fuser cover. Screw Fuser unit Figure 1-5-128...
  • Page 282 2KN/2KP 5. Remove the right roller of the cleaning felt from the upper fuser frame pushing the roller on machine front. 6. Remove the left roller of the cleaning felt Upper fuser frame from the upper fuser frame pushing the roller on machine front.
  • Page 283 2KN/2KP (5) Detaching and refitting the fuser thermostat 1 and 2 Follow the procedure below to check or replace the fuser thermostat 1 and 2. Caution Use the specified thermostat 1 and 2 for replacement. Procedure 1. Remove the fuser unit (see page 1-5-58). 2.
  • Page 284 2KN/2KP 5. Remove each two screws and then remove the fuser thermostat 1 and 2. 6. Check or replace the fuser thermostat 1 and 2 and attach the thermostat 1 and 2 to the fuser unit. Spacer plate When attaching fuser thermostats 1 and 2, check that each spacer plate and spacer plate R is located in the right attachment position aligned with the corresponding...

  • Page 285: Detaching And Refitting The Fuser Thermistor M And S

    2KN/2KP (6) Detaching and refitting the fuser thermistor M and S Follow the procedure below to check or replace the fuser thermistor M and S. Procedure 1. Remove the fuser unit (see page 1-5-58). 2. Remove the upper fuser cover (see page 1- 5-60).

  • Page 286: Detaching And Refitting The Fuser Heater M, S And L

    2KN/2KP (7) Detaching and refitting the fuser heater M, S and L Follow the procedure below to check or replace the fuser heater M, S and L. Procedure 1. Remove the fuser unit (see page 1-5-58). 2. Remove the upper fuser cover and upper fuser frame (see page 1-5-60).
  • Page 287 2KN/2KP 6. Remove three receptacles from the fuser heater M, S and L. Receptacle Receptacle (Black) (Red) Receptacle (White) Fuser Fuser heater L heater M Fuser heater S ( ): Wire color Note: When connecting the receptacles again, make sure that the wire color of each receptacle coincides with the corresponding label color (see the connection diagram label).
  • Page 288 2KN/2KP 7. Remove the screw. 8. Hold the fuser heater mount and then pull out the fuser heater M, S and L from the fuser unit. Fuser heater mount Screw Fuser heater L Fuser heater M Fuser heater mount Fuser heater S Figure 1-5-140 9.
  • Page 289 2KN/2KP 10. Check or replace the fuser heater M, S and L, and refit the heaters to the fuser unit. The fuser heater mount can be attached with ease if the fuser heater wires are lightly twisted before attaching the fuser heater mount again.

  • Page 290: Detaching And Refitting The Heat Roller

    2KN/2KP (8) Detaching and refitting the heat roller Follow the procedure below to replace the heat roller. Procedure 1. Remove the fuser unit (see page 1-5-58). 2. Release the fuser pressure. 3. Remove the fuser heater M, S and L with the rear fuser housing (see page 1-5-66).

  • Page 291: Detaching And Refitting The Heat Roller Separation Claws

    2KN/2KP (9) Detaching and refitting the heat roller separation claws Follow the procedure below to replace the heat roller separation claws. Procedure 1. Open the eject section. 2. Remove the screw and then remove the metal fitting from the eject section. 3.

  • Page 292: Detaching And Refitting The Fuser Eject Upper Roller

    2KN/2KP 6. Remove seven springs from the separation claws and then pull out the separation claws shaft from the eject guide. Springs 7. Replace the separation claws and attach the claws to the eject guide. 8. Refit the eject guide. Spring Eject guide Separation...

  • Page 293: Document Processor (Dp) Section

    2KN/2KP 1-5-11 Document processor (DP) section (1) Detaching and refitting DP Procedure 1. Release two projections and remove the connector cover. Projection Connector cover Projection Figure 1-5-151 2. Remove two screws and then remove the Ground screw connector inner cover. 3.
  • Page 294 2KN/2KP 4. Remove two screws of hinge retainer at the rear side of the left hinge. Hinge retainer Figure 1-5-153 5. Remove the pin and screw of the left hinge and screw of the right hinge. * Note the graduation position of the right hinge.

  • Page 295: Detaching And Refitting The Dp Original Feed Belt, Dp Forwarding Pulley And Dp Separation Roller

    2KN/2KP (2) Detaching and refitting the DP original feed belt, DP forwarding pulley and DP separation roller Follow the procedure below to clean or replace the DP original feed belt, DP forwarding pulley and DP separation roller. Procedure 1. Open the document processor top cover. Upper original 2.
  • Page 296 2KN/2KP Detaching the DP original feed belt and DP forwarding pulley 5. Remove the original feed belt unit from the inserted parts of the original feed pulley unit. Original feed pulley unit Original feed belt unit Figure 1-5-157 6. Remove the stop ring, pulley and DP origi- nal feed pulley, and then remove the original feed belt shaft from the original feed belt unit.
  • Page 297 2KN/2KP-1 8. Remove the stop ring and bush from the Original feed original feed pulley unit and pull out the for- pulley unit warding pulley shaft. 9. Remove the DP forwarding pulley from the original feed pulley unit. Forwarding pulley shaft Stop ring Bush DP forwarding pulley...
  • Page 298 2KN/2KP 13. Remove the stop ring and then remove the DP separation roller DP separation roller. 14. Clean or replace the DP separation roller and attach the roller. Stop ring * When replacing the DP separation roller, be careful that the projection of torque limiter is firmly into the groove of the DP separation roller.

  • Page 299: Detaching And Refitting Cis

    2KN/2KP (3) Detaching and refitting CIS Follow the procedure below to clean or replace CIS. Procedure 1. Open the document processor top cover. 2. Remove two screws and then remove the Original switchback guide original switchback guide. Figure 1-5-163 3. Remove the screw. 4.
  • Page 300 2KN/2KP 5. Remove the CIS SHD PWB and flexible flat Flexible flat cable cable from CIS. CIS SHD PWB Figure 1-5-165 6. Remove the connector and two screws and pull out CIS from DP. Note the position of the graduation of the retainer.
  • Page 301 2KN/2KP 9. Insert the CIS to the DP. Flexible flat cable * Pass the flexible flat cable through between the roller and the frame as shown in the fig- ure. Figure 1-5-168 10. Connect other end of the flexible flat cable Flexible to the CIS SHD PWB.

  • Page 302: Adjusting The Tension Of Original Feed Belt

    2KN/2KP-1 (4) Adjusting the tension of original feed belt Perform the following adjustment if no original feed or multiple sheets of original occurs for feeding from DP. Procedure Start Place the some original sheets on the DP. Refit the upper original cover and Press the start key and close the document processor cover.

  • Page 303: Others

    2KN/2KP 1-5-12 Others (1) Detaching and refitting the waste toner box Follow the procedure below to replace the waste toner box. Procedure 1. Remove two screws and then remove the lower right rear cover. Screws Lower right rear cover Figure 1-5-172 2.

  • Page 304: Detaching And Refitting The Developing Rear Fan Filter

    2KN/2KP (2) Detaching and refitting the developing rear fan filter Follow the procedure below to replace the developing rear fan filter. Procedure 1. Remove the screw and then remove the developing fan cover. Developing fan cover Figure 1-5-174 2. Remove the developing rear fan filter from Developing fan cover the developing fan cover.

  • Page 305: Detaching And Refitting The Image Formation Fan Filter

    2KN/2KP (4) Detaching and refitting the image formation fan filter Follow the procedure below to replace the image formation filter. Procedure 1. Remove the image formation fan cover while pushing the lever. Lever Image formation fan cover Figure 1-5-177 2. Remove the image formation fan filter from the image formation fan cover.

  • Page 306: Detaching And Refitting The Front Cover Filters

    2KN/2KP (5) Detaching and refitting the front cover filters Follow the procedure below to replace the front cover filters. Procedure 1. Open the front cover. 2. Release three inserted parts of the duct Front cover inner cover and then remove the duct inner cover from the front cover.

  • Page 307: Detaching And Refitting The Ozone Filters

    2KN/2KP (6) Detaching and refitting the ozone filters Follow the procedure below to replace the ozone filters. Procedure 1. Remove two screws and then remove the rear duct A. Remove three screws and then remove the rear duct B. Rear duct A Rear duct B Figure 1-5-181 2.
  • Page 308 2KN/2KP This page is intentionally left blank. 1-5-88...

  • Page 309: Upgrading The Firmware

    2KN/2KP-1 1-6 Requirements on PWB Replacement 1-6-1 Upgrading the firmware Follow the procedure below to upgrade the firmware on the main PWB and engine PWB. Firmware upgrading requires the following tools: Compact Flash (Products manufactured by SANDISK are recommended.) NOTE When writing data to a new Compact Flash from a computer, be sure to format it in advance.

  • Page 310: Adjustment-Free Variable Resistors (Vr)

    2KN/2KP 1-6-2 Adjustment-free variable resistors (VR) The variable resistors listed below are set at the factory prior to shipping and cannot be adjusted in the field. • Inverter PWB: VR1 1-6-3 Remarks on main PWB replacement Follow the procedure below to replace the main PWB. Caution When replacing the main PWB, run maintenance items U026 and U027.

  • Page 311: Remarks On Engine Pwb Replacement

    2KN/2KP 1-6-4 Remarks on engine PWB replacement When replacing the engine PWB, remove the EEPROM from the engine PWB that has been removed and then reattach it to the new engine PWB. Engine PWB Socket EEPROM Figure 1-6-4 1-6-5 Remarks on scanner PWB replacement When replacing the scanner PWB, remove the EEPROM from the scanner PWB that has been removed and then reattach it to the new scanner PWB.

  • Page 312: Upgrading The Printer Board Firmware

    2KN/2KP 1-6-6 Upgrading the printer board firmware Follow the procedure below to upgrade the firmware on the optional printer board. Firmware upgrading requires the following tools: Compact Flash (Products manufactured by SANDISK are recommended.) NOTE When writing data to a new Compact Flash from a computer, be sure to format it in advance. Procedure 1.

  • Page 313: Paper Feed Section

    2KN/2KP 2-1 Mechanical construction 2-1-1 Paper feed section This copier is designed to feed paper either automatically from four paper cassettes or manually from the MP tray. (1) Paper feed section 1 (cassette 1 and 2) Paper feed section 1 (cassette 1 and 2) consists of the paper holder with the deck base activated by lift motor 1 and 2, and the deck conveying unit for extracting and conveying the paper.
  • Page 314 2KN/2KP EPWB DKPWB DK SCLK YC2-A10 YC3-A4 DK RDY YC2-A9 YC3-A5 DK SDI YC2-A12 YC3-A2 DK SDO YC3-A3 YC2-A11 DK SEL YC2-A8 YC3-A6 FEED B SW YC3-A7 PF MOT1 /A, PF MOT1 A YC8-1, 8-3 PF MOT1 B, PF MOT1 /B YC8-4, 8-6 PF MOT2 A, PF MOT2 B YC8-7, 8-8...

  • Page 315: Paper Feed Section 2 (Cassette 3 And 4)

    2KN/2KP (2) Paper feed section 2 (cassette 3 and 4) Paper feed section 2 (cassette 3 and 4) consists of the paper holder with the cassette operation plate activated by lift motor 3 and 4, and the pulleys, such as the forwarding pulley, the paper feed pulley and the separation pulley, for extract- ing and conveying the paper.
  • Page 316 2KN/2KP CSPWB EPWB CS RDY YC4-9 YC2-6 CS SEL YC4-10 YC2-5 CS SDI YC2-9 YC4-6 CS SDO YC2-8 YC4-7 CS SCLK YC2-7 YC4-8 FSW3 FSW C YC5-B5 FSW D YC5-B8 FSW E YC5-B11 FSW4 FEED D1 SW YC4-23 PESW3 PE SW3 YC4-9 TIMSW2 LMT SW3...

  • Page 317: Paper Feed Section 3

    2KN/2KP (3) Paper feed section 3 Figure 2-1-5 Paper feed section 3 Left guide A (10) Feed switch 1 (FSW1) Feed switch 2 (FSW2) (11) Feed A upper guide Vertical feed roller (12) Registration lower roller Vertical feed right guide A (13) Registration upper roller Feed pulley (14) Registration upper guide...
  • Page 318 2KN/2KP EPWB DUPPWB DUP SCLK YC2-A8 YC2-A4 DUP SDI YC2-A2 YC2-A10 DUP SDO YC2-A3 YC2-A9 DUP SEL YC2-A6 YC2-A6 DUP RDY YC2-A5 YC2-A7 FEED A SW YC2-A10 REG SW YC2-A9 REG MOT CLK YC2-B10 YC2-B2 REG MOT REM YC2-B9 YC2-B3 REG MOT HLD YC2-B8 YC2-B4...

  • Page 319: Mp Tray And Mp Tray Paper Feed Section

    2KN/2KP (4) MP tray and MP tray paper feed section The MP tray can be hold up to 100 sheets of paper at one time. When the start key is pressed, the MP solenoid (MPSOL) turns on. The paper placed on the MP tray comes into contact with the MP forwarding pulley, is primary paper fed by the rotating of the MP forwarding roller and is conveyed to the MP feed pulley and MP separation pulley.
  • Page 320 2KN/2KP EPWB DKPWB DK SDI YC3-A2 YC2-A12 DK SDO YC3-A3 YC2-A11 DK SCLK YC3-A4 YC2-A10 DK RDY YC3-A5 YC2-A9 DK SEL YC3-A6 YC2-A8 MP SOL PUL YC3-A8 MP SOL ATC YC3-A9 MPTSW MPSOL MP SET SW SIG MPPLSW YC3-A10 MPPESW MP MOT CLK YC3-B9 YC2-B5...

  • Page 321: Main Charger Section

    2KN/2KP 2-1-2 Main charger section The main charging section consists of the main charger unit, drum, potential sensor and so on. The drum is electrically charged uniformly by means of a grid to form a latent image on the surface. The potential sensor (DPS) reads the drum surface potential and corrects surface potential.
  • Page 322 2KN/2KP EPWB HVPWB MC REM YC7-9 MC ALM YC7-8 G CONT YC7-7 POTENTIAL SENS YC5-24 PTS (PWB) CL MOT MC FWD YC5-6 CL MOT MC REV YC5-8 Main charger output Main charger unit Grid GRID DRUM HEAT REM DRHPWB YC8-2 Drum Figure 2-1-10 Main charger section block diagram Figure 2-1-11 Main charger unit...

  • Page 323: Optical Section

    2KN/2KP 2-1-3 Optical section The optical section consists of the scanner, mirror frame and image scanning unit for scanning and the laser scanner unit for printing. Figure 2-1-12 Optical section Laser scanner unit (LSU) Exposure lamp (EL) Mirror B (10) Mirror 1 frame Mirror B (11) ISU lens Scanner pulley...

  • Page 324: Original Scanning

    2KN/2KP (1) Original scanning The original image is illuminated by the exposure lamp (EL) and scanned by the CCD in the CCD PWB (CCDPWB) via the three mirrors and lens, the reflected light being converted to an electrical signal. The mirror 1 and 2 frames travel to scan on the optical rails on the front and rear of the machine to scan from side to side. The speed of the mirror 2 frame is half the speed of the mirror 1 frame.

  • Page 325: Image Printing

    2KN/2KP (2) Image printing The image data scanned by the CCD PWB (CCDPWB) is processed on the main PWB (MPWB) and transmitted as image printing data to the laser scanner unit (LSU). By repeatedly turning the laser on and off, the laser scanner unit forms a latent image on the drum surface. Figure 2-1-14 Laser scanner unit (LSU) Beam detect reflection mirror (10) Laser diode...
  • Page 326 2KN/2KP Figure 2-1-15 Laser scanner unit (LSU) Beam detect reflection mirror (11) Glass PP2 Polygon mirror (12) Glass PP Dust shield glass (13) Glass WP Polygon motor (PM) (14) Glass P PD PWB (PDWPWB) (15) Mirror LD Reflection mirror (16) Lens C Lens B (17) Coat glass Lens A...

  • Page 327: Developing Section

    2KN/2KP 2-1-4 Developing section The developing section consists of the developing unit and the toner container. The developing unit consists of the developing roller where a magnetic brush is formed, the developing blade and the developing spirals that agitate the developer. The engine PWB (EPWB) turns on/off the toner motor according to the toner sensor output voltage, and supply toner in the toner container to the developing unit.
  • Page 328 2KN/2KP EPWB DKPWB DK SDI YC3-A2 YC2-A12 DK SDO YC3-A3 YC2-A11 DK SCLK YC3-A4 YC2-A10 DK RDY YC3-A5 YC2-A9 DK SEL YC3-A6 YC2-A8 TONER MOT /B, TONER MOT /A YC6-7, 6-8 TONER MOT B, TONER MOT A YC6-9, 6-10 CONT SENS YC3-A13 CONT SET SW YC3-B13...

  • Page 329: Single Component Developing System

    2KN/2KP (1) Single component developing system This machine uses the single component developing system, and reversal processing is performed with a + charged drum (a-Si) and a + charged magnetic toner. With the single component developing system, toner is electrically charged by friction with the developing sleeve and + charged when it passes through the magnetic doctor blade.

  • Page 330: Transfer Section

    2KN/2KP 2-1-5 Transfer section The transfer section comprises the transfer charger belt for transferring the toner image on the drum onto the paper, and conveying the paper after transfer to the fuser section, the transfer roller for applying the transfer bias to the transfer charger belt, etc.

  • Page 331: Cleaning Section

    2KN/2KP 2-1-6 Cleaning section The machine employs a blade cleaning method with a cleaning brush. The cleaning section consists of the cleaning blade and cleaning brush which remove residual toner from the drum sur- face after transfer, the cleaning plate scraper that remove toner from the cleaning brush, and the cleaning spiral that car- ries the residual toner to the waste toner box.

  • Page 332: Fuser Section

    2KN/2KP 2-1-7 Fuser section The fuser section consists of the parts shown in the figure. When the paper reaches the fuser section after the transfer process, it passes through the gap between the press roller and heat roller, which is heated by fuser heaters M, S and L (FH-M, FH-S and FH-L). where pressure is applied by the pressure springs so that toner on the paper is melted and fused onto the paper When the fuser process is completed, the paper is separated from the heat roller and press roller by their separation claws and is ejected out of the copier by the rotation of the fuser eject pulley and roller.
  • Page 333 2KN/2KP FIX TH S SIG YC12-5 FIX TH M SIG YC12-3 FIX WEBSOL REM YC12-2 FCSW YC10-1 FRONT COV SIG YC10-3 ACPSPWB TAB5 AC LIVE IN TAB4 AC NEUTRAL OUT TAB3 AC LIVE OUT YC4-4 LIVE IN YC4-1 LIVE OUT EPWB FWSOL TAB1...

  • Page 334: Ptc Section

    2KN/2KP 2-1-8 PTC section The PTC section intends to reduce improperly charged toner by discharging on the toner developed onto the drum and to improve copy performance by decreasing adhesiveness of the toner onto the drum. This increases adhesiveness of the toner onto the copied paper and prevents various poor images after copying. The PTC charger unit has the PTC cleaning motor (PCLM), PTC cleaning pad for automatic cleaning of the charger wire.
  • Page 335 2KN/2KP CL MOT PTC FWD YC5-20 CL MOT PTC REV YC5-22 EPWB PCLM Drum PTC shield unit PTC wire 400 V ZPWB HVPWB PTC ALM YC7-1 PTC output (AC + DC) PTC REM YC7-2 Figure 2-1-27 PTC section block diagram 2-1-23...

  • Page 336: Eject And Feedshift Section

    2KN/2KP 2-1-9 Eject and feedshift section The feedshift and eject sections switches the paper path by copy mode and eject paper or convey the paper to the duplex section. For duplex copy mode, the paper for which copying on the rear side has been completed is conveyed to the duplex section by the feedshift section operation.
  • Page 337 2KN/2KP EPWB SBESW SB EJ SW SIG YC12-10 FS SOL PUL YC6-14 FSSOL FS SOL RTN YC6-16 FSSW DUPPWB FS SW YC6-11 EJECT SW YC2-A11 FUSER MOT CLK YC4-1 FUSER MOT ALM YC2-B10 FUSER MOT REM YC2-B11 DUP SDI YC2-A2 YC2-A10 DUP SDO YC2-A3...

  • Page 338: Duplex Section

    2KN/2KP 2-1-10 Duplex section As paper is conveyed from the feedshift section into the duplex section, the DU switchback feedshift guide shifts the paper path to switch-back the paper for refeeding or reverse side ejection. The paper is then conveyed to the feedshift and eject section.
  • Page 339 2KN/2KP EPWB DUPPWB DUP SCLK YC2-A4 YC2-A8 DUP SDI YC2-A2 YC2-A10 DUP SDO YC2-A3 YC2-A9 DUP SEL YC2-A6 YC2-A6 DUP RDY YC2-A5 YC2-A7 DUP FEED SW YC7-1 DUP CONV SW A YC7-3 DUP SB SOL ATC YC7-16 DUP SB SOL PUL YC7-14 DUP SIDE REG SW YC7-11...

  • Page 340: Circulation System (4 Sheets Circulation)

    2KN/2KP (1) Circulation system (4 sheets circulation) • Start scanning the originals. • First to fifth sheet of the originals are scanned front and back alternately (Scanning front and back simultaneously). • After scanning one original (page 1 and 2), run parallel to this scanning, start feeding and print the front page. •...

  • Page 341: Document Processor (Dp) Section

    2KN/2KP 2-1-11 Document processor (DP) section The document processor (DP) section consists of the parts shown in the figure. The original placed on the original table is fed sheet by sheet through the original feeding section and conveyed on the slit glass.
  • Page 342 2KN/2KP DPMPWB LM_B, LM B YC3-7, 3-8 LM A, LM _A YC3-9, 3-10 INV REM YC12-2 FM A, FM B YC3-3, 3-4 FM _A, FM _B YC3-5, 3-6 ODSW YC7-2 RM A, RM _A YC4-3, 4-4 RM B, RM _B YC4-5, 4-6 OFSW REGSW...

  • Page 343: Electrical Parts Layout

    2KN/2KP 2-2 Electrical Parts Layout 2-2-1 Electrical parts layout (1) PWBs Machine front Machine inside Machine rear Figure 2-2-1 PWBs Engine PWB (EPWB)........Controls the other PWBs, electrical components and optional devices. Main PWB (MPWB) ........Controls the image processing, operation panel and laser scanner unit. AC power source PWB (ACPSPWB)...
  • Page 344 2KN/2KP 11. High voltage PWB (HVPWB) ....... Generates high voltage for main charging, PTC (charging), and develop- ing bias. 12. APC PWB (APCPWB) ......... Generates and controls the laser beam. 13. PD PWB (PDPWB) ........Defects horizontal synchronizing timing of laser beam. 14.

  • Page 345: Switches And Sensors

    2KN/2KP (2) Switches and sensors 30 26 Machine front Machine inside Machine rear Figure 2-2-2 Switches and sensors Main power switch (MSW) ......Turns the AC power on and off. Feed switch 1 (FSW1) ......... Detects a paper misfeed. Feed switch 2 (FSW2) ......... Detects a paper misfeed. Feed switch 3 (FSW3) .........
  • Page 346 2KN/2KP 15. Toner container sensor (TCS) ...... Detects the quantity of toner in a toner container. 16. Cassette 1 level sensor 1 (CAS1LS1) ..Detects the paper level in cassette 1. 17. Cassette 1 level sensor 2 (CAS1LS2) ..Detects the paper level in cassette 1. 18.

  • Page 347: Motors

    2KN/2KP (3) Motors Machine front Machine inside Machine rear Figure 2-2-3 Motors Drive motor (DM) ......... Drives the drum and cleaning unit. Scanner motor (SM)........Drives the optical system. Paper feed motor 1 (PFM1) ......Drives cassette 1 paper feed. Paper feed motor 2 (PFM2) ......
  • Page 348 2KN/2KP 15. Toner motor (TM) ......... Replenishes toner. 16. Transfer motor (TRM) ........Drives the transfer belt. 17. Cleaning motor (CLM)........Cleans the main charger wire. 18. PTC cleaning motor (PCLM) ......Cleans the PTC wire. 19. Polygon motor (PM) ........Drives the polygon mirror. 20.

  • Page 349: Others

    2KN/2KP (4) Others 9,10 20,21 Machine front Machine inside Machine rear Figure 2-2-4 Others MP solenoid (MPSOL) ......... Operates up/down of the MP forwarding pulley. Exposure lamp (EL) ........Exposes originals. Cleaning lamp (CL) ........Removes residual charge from the drum surface. Feedshift solenoid (FSSOL)......

  • Page 350: Pwbs (Dp)

    2KN/2KP (5) PWBs (DP) Machine front Machine inside Machine rear Figure 2-2-5 PWBs (DP) DP main PWB (DPMPWB) ......Controls electrical components of the document processor. DP inverter PWB (DPINPWB)...... Controls the light source of built-in CIS. LED PWB (LEDPWB) ........Indicates presence of originals on the document processor or an original jam.

  • Page 351: Switches And Sensors (Dp)

    2KN/2KP (6) Switches and sensors (DP) Machine front Machine inside Machine rear Figure 2-2-6 Switches and sensors (DP) DP safety switch 1 (DPSSW1)..... Breaks the safety circuit when the document processor is opened; resets original misfeed detection. DP safety switch 2 (DPSSW2)..... Breaks the safety circuit when the document processor top cover is opened;...

  • Page 352: Others (Dp)

    2KN/2KP (7) Others (DP) Machine front Machine inside Machine rear Figure 2-2-7 Others (DP) Original feed motor (OFM) ......Drives the DP original feed belt. Original conveying motor (OCM) ....Drives the original conveying section. Original registration motor (ORM)....Drives the registration roller. DP lift motor (DPLIM) ........

  • Page 353: Ac Power Source Pwb

    2KN/2KP 2-3 Operation of the PWBs 2-3-1 AC power source PWB ACPSPWB Secondary Primary 5VPD DCPS Drawer DH REM heater control circuit Fuser FH-M REM heater M control FH-M circuit EPWB FH-L REM Fuser heater L FH-L control circuit Fuser FH-S REM heater S control...
  • Page 354 2KN/2KP 100V TAB4 TAB5 TAB3 F003 F002 TAB1 F001 F007 F004 TAB2 F006 F005 200V TAB4 TAB5 TAB3 F003 F002 TAB1 F001 F007 F004 TAB2 F006 F005 Figure 2-3-2 AC power source PWB silk-screen diagram 2-3-2...
  • Page 355 2KN/2KP Connector Pin No. Signal Voltage Description 5V PD 5 V DC 5 V DC power input Connected CS HEATER 0/5 V DC Drawer heater 1, 2 and 3: On/off to the DC HEATER1 0/5 V DC Fuser heater M: On/off power HEATER2 0/5 V DC...
  • Page 356 2KN/2KP Connector Pin No. Signal Voltage Description AC LIVE IN 120 V AC AC power input Connected 220-240 V AC to the AC AC NEUTRAL 120 V AC AC power input inlet and 220-240 V AC front cover AC LIVE OUT 120 V AC AC power output for front cover switch switch...

  • Page 357: Dc Power Source Pwb

    2KN/2KP 2-3-2 DC power source PWB DCPSPWB DH REM FH-M REM ACPSPWB FH-L REM FH-S REM 5VPD EPWB 24V1PD MPWB EPWB RELAY SOURCE DUPPWB CSPWB 5VPD RELAY REM DKPWB Relay Switching SPWB regulator FMDPWB circuit Optional 5VPD document finisher R24V1PD EPWB 5VPD Optional...
  • Page 358 2KN/2KP 100V IC1003 F2002 YC10 PC1003 F2004 PC1002 F2003 T1001 IC2005 IC1001 T1002 YC11 IC1002 IC2007 IC1004 IC2008 200V IC1003 F2002 YC10 PC1003 F2004 PC1002 F2003 T1001 IC2005 IC1001 T1002 YC11 IC1002 IC2007 IC1004 IC2008 Figure 2-3-4 DC power source PWB silk-screen diagram 2-3-6...
  • Page 359 2KN/2KP Connector Pin No. Signal Voltage Description 24 V DC 24 V DC power output Connected 24 V DC 24 V DC power output to the scan- PGND Power ground ner PWB PGND Power ground 5 V DC 5 V DC power output SGND Power ground SGND...
  • Page 360 2KN/2KP Connector Pin No. Signal Voltage Description 5 V DC 5 V DC power output for main PWB Connected 5 V DC 5 V DC power output for main PWB to the PWBs 5 V DC 5 V DC power output for main PWB 5 V DC 5 V DC power output for main PWB 5 V DC...
  • Page 361 2KN/2KP Connector Pin No. Signal Voltage Description YC10 5 V DC 5 V DC power output Connector 5 V DC 5 V DC power output SGND Signal ground SGND Signal ground 24 V DC 24 V DC power output PGND Power ground YC11 S12V...

  • Page 362: Main Pwb

    2KN/2KP 2-3-3 Main PWB MPWB Address bus/Data bus EEPROM SBFM Flash SDRAM SCAN Flash DIGKEY Buffer SDRAM OPWB RE, WE, CS, RESET CPUCLK controller 33 MHz Image data Optional CODE Basis signal(CLK, MRE, VSYNC) DIMM printer board Image data Image data Image Basis signal Pseudo BD signal...
  • Page 363 2KN/2KP YC17 U54 U52U56U55 U53 U57 U59 U60U61 U58 YC18 YC21 YC13 YC8 YC12 YC10 U70 U69 YC16 YC14 U18 U67 YC27 YC15 YC11 YC26 YC19 Figure 2-3-6 Main PWB silk-screen diagram 2-3-11...
  • Page 364 2KN/2KP Connector Pin No. Signal Voltage Description LD3_CONT Analog Control voltage for laser power (LD3) Connected LD2_CONT Analog Control voltage for laser power (LD2) to the LD1_CONT Analog Control voltage for laser power (LD1) engine PWB LDON 0/5 V DC LDON signal SGND Signal ground...
  • Page 365 2KN/2KP Connector Pin No. Signal Voltage Description WINCD_DIN_G 0/3.3 V DC (pulse) Image data signal Connected WINCD_DIN_G 0/3.3 V DC (pulse) Image data signal to the SHD WINCD_DIN_G 0/3.3 V DC (pulse) Image data signal SGND Signal ground SGND Signal ground SGND Signal ground SGND...
  • Page 366 2KN/2KP Connector Pin No. Signal Voltage Description WINCD_DIN_G 0/3.3 V DC (pulse) Image data signal Connected WINCD_DIN_G 0/3.3 V DC (pulse) Image data signal to the SHD WINCD_DIN_G 0/3.3 V DC (pulse) Image data signal SGND Signal ground SGND Signal ground SGND Signal ground SGND...
  • Page 367 2KN/2KP Connector Pin No. Signal Voltage Description WINCS_DIN_G 0/3.3 V DC (pulse) Image data signal Connected WINCS_DIN_G 0/3.3 V DC (pulse) Image data signal to the DP main PWB WINCS_DIN_G 0/3.3 V DC (pulse) Image data signal SGND Signal ground SGND Signal ground SGND...
  • Page 368 2KN/2KP Connector Pin No. Signal Voltage Description WINCS_DIN_G 0/3.3 V DC (pulse) Image data signal Connected SGND Signal ground to the DP SGND Signal ground main PWB SGND Signal ground SGND Signal ground SGND Signal ground SGND Signal ground SGND Signal ground SGND Signal ground...
  • Page 369 2KN/2KP Connector Pin No. Signal Voltage Description DIG LED_8 0/5 V DC (pulse) DIG LED_8 signal Connected DIG LED_7 0/5 V DC (pulse) DIG LED_7 signal to the opera- SCAN_8 0/5 V DC (pulse) SCAN_8 signal tion PWB SCAN_7 0/5 V DC (pulse) SCAN_7 signal SCAN_6 0/5 V DC (pulse)
  • Page 370 2KN/2KP Connector Pin No. Signal Voltage Description 5 V DC 5 V DC power output Connected VD3N Analog Laser diode control signal to the APC VD3P Analog Laser diode control signal PWB and VD2N Analog Laser diode control signal PD PWB VD2P Analog Laser diode control signal...

  • Page 371: Engine Pwb

    2KN/2KP 2-3-4 Engine PWB EPWB Serial Optional DEVC communication document DATA finisher/side feeder OUTPEN, PVSYNC EG SCLK, EG SDO, EG SBSY, EG SDIR, EG IRN, EG SDI Switches Sensor Address bus DKPWB Flash Motors Data/Address multiplex bus Solenoid (U305) Address Address latch Switches...
  • Page 372 2KN/2KP YC19 YC21 U307 U306 U403 U401 U1905 U304 U303 U305 U201 U101 U308 U1007 U1801 U1802 U1804 U1108 U1101 YC15 YC16 YC13 YC23 YC14 YC22 YC24 Figure 2-3-8 Engine PWB silk-screen diagram 2-3-20...
  • Page 373 2KN/2KP Connector Pin No. Signal Voltage Description EG SCLK 0/5 V DC (pulse) Engine PWB clock signal Connected EG SDI 0/5 V DC (pulse) Engine PWB serial communication signal to the main EG SDO 0/5 V DC (pulse) Engine PWB serial communication signal EG SBSY 0/5 V DC Engine PWB SBSY signal...
  • Page 374 2KN/2KP Connector Pin No. Signal Voltage Description Ground Connected DK SDI 0/5 V DC (pulse) Deck PWB serial communication signal to the deck DK SDO 0/5 V DC (pulse) Deck PWB serial communication signal DK SCLK(O) 0/5 V DC (pulse) Deck PWB clock signal DK RDY(I) 0/5 V DC...
  • Page 375 2KN/2KP Connector Pin No. Signal Voltage Description IMAGE FAN 0/24 V DC Image formation fan motor: On/off Connected Ground to the image Ground formation DLP FAN F1 24 to 20.92/ Developing fan motor 1: full speed/half speed/off unit, cooling 20.92 to 0.5/ fan motor 3 0.5 to 0 V DC and poten-...
  • Page 376 2KN/2KP Connector Pin No. Signal Voltage Description DUP FAN REM 0/24 V DC Duplex fan motor: On/off Connected R24V 24 V DC 24 V DC power output to the con- Ground veying unit FEED SHIFT 0/24 V DC Feedshift fan motor: On/off TRF -CNT Analog Transfer bias minus output control voltage...
  • Page 377 2KN/2KP Connector Pin No. Signal Voltage Description YC10 FRONT COV 24 V DC 24 V DC power output Connected Ground to the front FRONT COV 24/0 V DC Front cover switch: On/off cover switch and right RIGHT COV 24 V DC 24 V DC power output cover switch Ground...
  • Page 378 2KN/2KP Connector Pin No. Signal Voltage Description YC14 DF SET 0/5 V DC Document finisher set signal Connected OP SDO(DF) 0/5 V DC (pulse) Document finisher serial communication signal to the OP SDI(DF) 0/5 V DC (pulse) Document finisher serial communication signal optional OP SCLK(DF) 0/5 V DC (pulse)
  • Page 379 2KN/2KP Connector Pin No. Signal Voltage Description YC23 D TEMP SENS Analog Developing humidity sensor temperature detec- tion signal Connected Ground to the devel- D HUMID Analog Developing humidity sensor humidity detection oping SENS signal humidity 5 V DC 5 V DC power output sensor YC24 Ground...

  • Page 380: Scanner Pwb

    2KN/2KP 2-3-5 Scanner PWB SPWB P24V, A24V DP SEL, DP SDI, DP SCLK DCPSPWB DP END, DP TMG, DP RDY, DP SDO SC SCLK SC SDI EESCLK EEPROM SC SDO EESDA (U9) MPWB SC SBSY (U1) SC SDIR SC IRN ORGSW OSDS IS RESETN...
  • Page 381 2KN/2KP Connector Pin No. Signal Voltage Description SFANON 24 V DC Lamp fan motor/scanner fan motor: On/off Connected P24V 24 V DC 24 V DC power output to the lamp 5 V DC 5 V DC power output fan motor, HPSW 0/5 V DC Scanner home position switch: On/off...
  • Page 382 2KN/2KP Connector Pin No. Signal Voltage Description SCANNER SET 0/5 V DC Scanner set signal Connected Ground to the main SC IRN 0/5 V DC Scanner IRN signal SC SDIR 0/5 V DC Scanner SDIR signal SC SBSY 0/5 V DC Scanner SBSY signal SC SDO 0/5 V DC (pulse)
  • Page 383 2KN/2KP Connector Pin No. Signal Voltage Description 5 V DC 5 V DC power output Connected DPSW 0/5 V DC DP set detection switch: On/off to the origi- Ground nal size 5 V DC 5 V DC power output detection ORGSW1 0/5 V DC Original size detection sensor: On/off...

  • Page 384: Ccd Pwb

    2KN/2KP 2-3-6 CCD PWB CCDPWB 1A-1, 2A-1, 1A-2, 2A-2 Drivers (U1,4) SH, RS, CP, 2B Driver (U2) SHDPWB Transistors A[9:0] CCDA[9:0] Buffer (Q5, Q7) (U6) sensor Front (U3) (U5) CLK, SDI, SEN Transistors (Q1, Q2) ISSCLKAFE ISSDIAFE Buffer ISSDOAFE SPWB (U9) ISSELAFE CLK, SDI, SEN...
  • Page 385 2KN/2KP Connector Pin No. Signal Voltage Description ADCLK-A 0/3.3 V DC (pulse) CCD A/D clock signal Connected RESETN-A 0/3.3 V DC CCD reset signal to the SHD Signal ground CCDA9 0/3.3 V DC (pulse) Image data signal CCDA8 0/3.3 V DC (pulse) Image data signal CCDA7 0/3.3 V DC (pulse) Image data signal CCDA6...
  • Page 386 2KN/2KP Connector Pin No. Signal Voltage Description Signal ground Connected Signal ground to the SHD Signal ground 12 V DC 12 V DC power output 12 V DC 12 V DC power output 12 V DC 12 V DC power output 12 V DC 12 V DC power output 1A-1...

  • Page 387: Deck Pwb

    2KN/2KP 2-3-7 Deck PWB DKPWB LCF SW A, B R24V PE SW1, 2 DKCSW1, 2 DCPSPWB LIM SW1,2 PESW1, 2 LCF SW A1 LILSW1, 2 Reset IC RESET TIMSW1 PF MOT1 Motor (U8) PFM1, 2 PF MOT2 drivers (U10, U11) LIFT MOT1 Motor LIM1, 2...
  • Page 388 2KN/2KP YC10 Figure 2-3-14 Deck PWB silk-screen diagram 2-3-36...
  • Page 389 2KN/2KP Connector Pin No. Signal Voltage Description 24 V DC 24 V DC power input Connected PGND Power ground to the DC SGND Signal ground power 5 V DC 5 V DC power input source PWB CONT SENS Analog Toner container sensor detection signal Connected MP TRY SW 0/5 V DC...
  • Page 390 2KN/2KP Connector Pin No. Signal Voltage Description SGND Signal ground Connected LCF1 SW1 0/5 V DC Cassette 1 level sensor 1: On/off to the cas- 5 V DC 5 V DC power output sette 1 level SGND Signal ground sensor 1/2/ 3, cassette 1 LCF1 SW2 0/5 V DC...
  • Page 391 2KN/2KP Connector Pin No. Signal Voltage Description MP MOT/B 0/24 V DC (pulse) MP feed motor drive signal Connected 24 V DC 24 V DC power output to the MP MP MOT B 0/24 V DC (pulse) MP feed motor drive signal feed motor, MP MOT A 0/24 V DC (pulse) MP feed motor drive signal...
  • Page 392 2KN/2KP Connector Pin No. Signal Voltage Description PF MOT1/A 0/24 V DC (pulse) Paper feed motor 1 drive signal Connected R24V 24 V DC 24 V DC power output to paper PF MOT1 A 0/24 V DC (pulse) Paper feed motor 1 drive signal feed motor 1 PF MOT1 B 0/24 V DC (pulse) Paper feed motor 1 drive signal...

  • Page 393: Cassette Pwb

    2KN/2KP 2-3-8 Cassette PWB CSPWB R24V PE SW3, 4 DCPSPWB LMT SW3, 4 PESW3, 4 LILSW3, 4 FEED SW D1, E1 Reset IC RESET TIMSW2, 3 (U4) PFM3, 4 PF MOT3 Motor PF MOT4 drivers LIFT MOT3 Motor (U6, U7) drivers LIFT MOT4 (U2)
  • Page 394 2KN/2KP Connector Pin No. Signal Voltage Description 24 V DC 24 V DC power input Connected PGND Power ground to the DC SGND Signal ground power 5 V DC 5 V DC power input source PWB 5 V DC 5 V DC power output Connected DISPOSL SIG 0/5 V DC...
  • Page 395 2KN/2KP Connector Pin No. Signal Voltage Description FEED D1 SW 0/5 V DC Timing switch 3: On/off Connected FEED E1 SW 0/5 V DC Timing switch 4: On/off to the pri- SGND Signal ground mary paper SGND Signal ground feed unit, paper width size switch 1 and 2...

  • Page 396: Duplex Pwb

    2KN/2KP 2-3-9 Duplex PWB DUPPWB R24V DLP MOT CLK DCPSPWB DLP MOT REM DEVM DLP MOT ALM Reset IC RESET (U7) Motor DUP SIDE MOT driver DUPSRM DUP SB SOL ATC (U8) DUPSBSOL DUP SB SOL PUL Motor DUP FEED MOT driver DUPFDM DUP FS SOL ATC...
  • Page 397 2KN/2KP Figure 2-3-18 Duplex PWB silk-screen diagram 2-3-45...
  • Page 398 2KN/2KP Connector Pin No. Signal Voltage Description 24 V DC 24 V DC power input Connected PGND Power ground to the DC SGND Signal ground power 5 V DC 5 V DC power input source PWB EJECT SW 0/5 V DC Exit switch: On/off Connected FEED A SW...
  • Page 399 2KN/2KP Connector Pin No. Signal Voltage Description REG MOT/B 0/24 V DC (pulse) Registration motor drive signal Connected DUP FEED 0/24 V DC (pulse) Duplex feed motor drive signal to the regis- MOT/B tration 24 V DC 24 V DC power output motor, feed DUP FEED 0/24 V DC (pulse) Duplex feed motor drive signal...
  • Page 400 2KN/2KP Connector Pin No. Signal Voltage Description DUP FEED SW 0/5 V DC Duplex feed switch: On/off Connected Not used to the DUP CONV SW 0/5 V DC Duplex conveying switch 1: On/off duplex unit Not used DUP CONV SW 0/5 V DC Duplex conveying switch 2: On/off 24 V DC...

  • Page 401: Operation Pwb

    2KN/2KP 2-3-10 Operation PWB OPWB DIGKEY1 KEY23 KEY24 KEY25 KEY26 CN1-1 KEY28 KEY29 KEY30 KEY27 DIGKEY2 KEY33 KEY34 KEY35 CN1-2 KEY31 KEY32 KEY36 DIGKEY3 KEY37 CN1-3 SCAN1 CN1-4 SCAN2 CN1-5 SCAN3 CN1-6 SCAN4 CN1-7 L7-1 L10-1 R100 DIGLED1 CN1-8 L7-3 L10-3 R102 DIGLED2...
  • Page 402 2KN/2KP SW19 SW20 SW21 SW22 SW10 SW16 SW14 SW11 SW17 SW12 SW18 SW15 K36 BZ1 Figure 2-3-20 Operation PWB silk-screen diagram 2-3-50...
  • Page 403 2KN/2KP Connector Pin No. Signal Voltage Description DIG KEY_1 0/5 V DC (pulse) DIG KEY_1 signal Connected DIG KEY_2 0/5 V DC (pulse) DIG KEY_2 signal to the main DIG KEY_3 0/5 V DC (pulse) DIG KEY_3 signal SCAN_1 0/5 V DC (pulse) SCAN_1 signal SCAN_2 0/5 V DC (pulse)
  • Page 404 2KN/2KP Connector Pin No. Signal Voltage Description LAMP OFF 0/5 V DC LCD back light signal Connected 24 V DC 24 V DC power input to the main PGND Power ground SGND Signal ground PH_LED 0/5 V DC Energy saver key LED display: On/off PH_KEY 0/5 V DC Energy saver key: On/off...

  • Page 405: Hdd Relay Pwb

    2KN/2KP 2-3-11 HDD relay PWB MPWB HDD I/F circuit TX_N/P RX_N/P 3.3 V 1.8 V Reset IC Regulator Regulator 12 V DCPSPWB HDDRPWB Figure 2-3-21 HDD relay PWB block diagram Figure 2-3-22 HDD relay PWB silk-screen diagram 2-3-53...
  • Page 406 2KN/2KP Connector Pin No. Signal Voltage Description RESET 0/5 V DC (pulse) Reset signal Connected SGND Signal ground to the main 0/5 V DC (pulse) Data bus signal 0/5 V DC (pulse) Data bus signal 0/5 V DC (pulse) Data bus signal 0/5 V DC (pulse) Data bus signal 0/5 V DC (pulse)
  • Page 407 2KN/2KP Connector Pin No. Signal Voltage Description Ground Connected 0/5 V DC (pulse) Data output to the HDD 0/5 V DC (pulse) Data output Ground 0/5 V DC (pulse) Data input 0/5 V DC (pulse) Data input Ground Not used Not used Not used Ground...

  • Page 408: Dp Main Pwb

    2KN/2KP 2-3-12 DP main PWB DPMPWB CISSHDPWB SSCLK WRSET SSDI PAGEST SSEL PLLSEL1 SSDO PLLSEL0 SRDY WSCLK ASIC TMG2 SPWB WSDO OVSYNC WSEL FEED WSDI +24V WRDY +A24V (U1) OVMONOUT RGDATA TMG1SW RGCLK DPTSW1 TMG2SW RGLD DPTSW2 FDSW RGRDWR OFSW REGSW RGOUT ORSW...
  • Page 409 2KN/2KP Connector Pin No. Signal Voltage Description 24 V DC 24 V DC power input Connected 24 V DC 24 V DC power input to the scan- 24 V DC 24 V DC power input ner PWB A24V 24 V DC 24 V DC power input A24V 24 V DC...
  • Page 410 2KN/2KP Connector Pin No. Signal Voltage Description OVMONOUT 0/5 V DC OVMONOUT signal Connected Not used to the CIS SHD PWB FMCOMA 24 V DC 24 V DC power output Connected FMCOMB 24 V DC 24 V DC power output to the origi- 0/24 V DC (pulse) Original feed motor drive signal nal feed...
  • Page 411 2KN/2KP Connector Pin No. Signal Voltage Description 5 V DC 5 V DC power output Connected FDSW 0/5 V DC Original feed switch: On/off to the origi- SGND Signal ground nal feed 5 V DC 5 V DC power output switch, origi- nal registra- REGSW...
  • Page 412 2KN/2KP This page is intentionally left blank. 2-3-60...

  • Page 413: Maintenance Parts List

    2KN/2KP 2-4 Appendixes Maintenance parts list Maintenance part name Alternative Fig. Ref. Part No. part No. Name used in service manual Name used in parts list Paper feed pulley PULLEY FEED LCF 303KZ06270 3KZ06270 Forwarding pulley PULLEY LEADING FEED 2FB06040 Separation pulley LOWER PULLEY FEED LCF 303KZ06280...
  • Page 414 2KN/2KP Maintenance part name Alternative Fig. Ref. Part No. part No. Name used in service manual Name used in parts list Fuser heater M PARTS HEATER M120 FUSER SP 302KP94060 2KP94060 PARTS HEATER M240 FUSER SP 302KP94090 2KP94090 Fuser heater S PARTS HEATER S120 FUSER SP 302KP94070 2KP94070...

  • Page 415: Periodic Maintenance Procedures

    2KN/2KP Periodic maintenance procedures Maintenance Maintenance Section Method Points and cautions Page part/location cycle Test copy Perform at the maxi- Test copy Every service and test print mum copy size Maintenance Maintenance Section Method Points and cautions Page part/location cycle Paper feed Paper feed pulleys Replace...
  • Page 416 2KN/2KP Maintenance Maintenance Section Method Points and cautions Page part/location cycle Optical Slit glass Clean Every service Clean with a dry cloth or alcohol section (do not clean with a wet cloth). Contact glass Clean Every service Clean with alcohol and then a dry cloth.
  • Page 417 2KN/2KP-1 Maintenance Maintenance Section Method Points and cautions Page part/location cycle Develop- Developing unit Replace Every service Replace after feeding 500,000 P.1-5-48 ing section sheets. Maintenance Maintenance Section Method Points and cautions Page part/location cycle Transfer Transfer belt Replace Every service Replace after feeding 500,000 P.1-5-51 section...
  • Page 418 2KN/2KP Maintenance Maintenance Section Method Points and cautions Page part/location cycle Fuser Lower cleaning roller Replace Every service Replace after feeding 500,000 P.1-5-59 section sheets. Press roller Replace Every service Replace after feeding 500,000 P.1-5-60 sheets. Press roller separation Clean Every service Clean with alcohol or a dry cloth.
  • Page 419 2KN/2KP Maintenance Maintenance Section Method Points and cautions Page part/location cycle Eject Eject roller Clean Every service Clean with alcohol or a dry cloth. section Eject pulleys Clean Every service Clean with alcohol or a dry cloth. Guides Clean Every service Clean with alcohol or a dry cloth.
  • Page 420 2KN/2KP Maintenance Maintenance Section Method Points and cautions Page part/location cycle Other Waste toner box Replace Every service Replace after feeding 500,000 P.1-5-83 sheets. Developing rear fan Replace Every service Replace after feeding 500,000 P.1-5-84 filter sheets. Developing front fan fil- Replace Every service Replace after feeding 500,000...

  • Page 421: Maintenance Kits

    2KN/2KP Maintenance kits Maintenance kit part name Fig. Ref. Altemative Part No. Part No. Name used in service manual Name Maintenance kit A MK-660A/MAINTENANCE KIT 1702KP7US0 072KP7US <For 120 V specifications> Transfer belt unit TC BELT ASS'Y PTC unit PTC ASS'Y Main charger unit MCH ASS'Y Heat roller separation craw unit...

  • Page 422: Parts Kits

    2KN/2KP Parts kits Parts kit part name Fig. Ref. Altemative Part No. Part No. Name used in service manual Name Parts kit A PM-660A/PM KIT 1702KP0UN1 072KP0U1 CLEANING ASS'Y Cleaning unit Waste toner box DISPOSAL TANK ASS'Y Image formation fan filter FILTER MC FAN Developing front fan filter 1 FRONT FILTER DLP FAN...
  • Page 423 2KN/2KP Chart of image adjustment procedures Maintenance mode Adjusting Item Image Description Original Page Remarks order Item No. Mode Adjusting the lateral squareness (print- Adjusting the position of the laser scanner U089 P.1-5-42 ing adjustment) unit (printing adjustment) (1 dot-LINE) Adjusting the magnification in the main Polygon motor speed adjustment U053...
  • Page 424 2KN/2KP Maintenance mode Adjusting Item Image Description Original Page Remarks order Item No. Mode Adjusting magnification of the scanner Data processing U065 MAIN SCAN ADJ Test chart P.1-3-25 U065: For copying an original placed on the contact glass. in the main scanning direction (scan- CIS MAIN ADJ U070: For copying originals from the document processor (to make ning adjustment)
  • Page 425 2KN/2KP Wiring diagram No.1 DCPSPWB FINISHER YC3-6 Finisher YC11-1 S12V YC11-2 SGND HDDRPWB SDCPSPWB YC11-3 SGND YC11-4 YC3-3 R24V FINISHER YC2-7 REFERENCE DUPPWB PGND YC2-5 YC4-13 SGND AC LIVE IN TAB 1 YC5-15 PGND AC NEUTEAL IN TAB 2 PGND FINISHER PGND YC2-6...
  • Page 426 2KN/2KP Wiring diagram No.2 EGSCKN EG SGLK EGSI EG SDI SGND EGSO EG SDO ENBn EGSBSY EG SBSY SGND EGSDIR EG SDIR S_H1n EGIRN EG IRN SGND OUTPEN OUTPEN S_H2n PVSYNC PVSYNC SGND LSU_5V WINCD_DIN_RP3 WINCD_DIN_RP3 S_H3n SGND SGND WINCD_DIN_RN3 WINCD_DIN_RN3 SGND SGND...
  • Page 427 2KN/2KP Wiring diagram No.3 MPWB YC12 YC10 YC13 YC21 SGND SGND DB_DATA7 PRT_SET DIMM D0 INTA DB_DATA6 SGND DIMM D1 INTC DB_DATA5 SIE2P DIMM D2 DB_DATA4 SCLKN DIMM D3 DB_DATA3 SBSY VCC1 SGND DB_DATA2 SOP2E DIMM D4 PCI RST -CE1 DB_DATA1 _RESET_PRT DIMM D5...
  • Page 428 2KN/2KP Wiring diagram No.4 Image formation unit EG SGLK DRUM HEAT REM DRHPWB PTC ALM EG SDI R24V PTC REM EG SDO DLP PLS EG SBSY CL LAMP REM DLP CONT EG SDIR R24V DLP AC REM EG IRN DLP DC REM OUTPEN MPWB HVPWB...
  • Page 429 2KN/2KP Wiring diagram No.5 ADCLK-A ADCLK-A SGND RESETN-A ISRESETN CLK5V CLK5V SGND CCDA9 CCDA9 CLK5V CLK5V CCDA8 CCDA8 SGND WRSO CCDA7 CCDA7 CLK5V CLK5V WRSI CCDA6 CCDA6 AGND CCDA5 CCDA5 A24V A24V ERSTN AGND SGND CCDA4 CCDA4 A24V A24V CCDA3 CCDA3 SGND SGND...
  • Page 430 2KN/2KP Wiring diagram No.6 YC2-3 YC3-2 R24V YC2-4 PGND MP MOT /A YC3-5 DCPSPWB YC6-8 YC4-14 SGND MP MOT A YC5-3 YC5-16 MPFDM MP MOT B CONT SENS MP MOT /B MP TRY SW TONER MOT /B TONER MOT /A MP PSD SW MP PE SW TONER MOT B...
  • Page 431 2KN/2KP Wiring diagram No.7 YC3-5 LIFT3 ESW 2 YC2-3 PGND SGND DCPSPWB YC4-15 SGND LIM3 LIFT3 ESW 1 YC5-14 LIFT MOT4 L LIFT MOT4 H LIFT4 ESW 2 SGND LIM4 LIFT4 ESW 1 DISPOSL SIG(I) LIFT MOT3 L SGND LIFT4 MOT3 H DISPOSL SIG(O) CS SEL (I) CS RDY (O)
  • Page 432 2KN/2KP Wiring diagram No.8 DUPCSW3 YC3-3 R24V YC2-5 PGND DUPSRM DCPSPWB YC4-13 SGND DUP CONV SW C YC5-15 DUPSRSW EJECT SW FEED A SW DUP SIDE REG SW REG SW DUPJSW DUP JAM SW DUP PAUSE DUP SEL(O) DUP RDY(I) DUP SCLK(O) DUP SDO DUPCSW1...
  • Page 433 2KN/2KP Wiring diagram No.9 OSSW DPTSW1 DPTSW2 OWSW DPLULSW CISOCSW ORSW OLSW OFSW SHDPWB RGDATA/RGCLK RGLD/RGRDWR DPLLLSW RGOUT/AGND AGND/+A24V GREEN +A24V/SGND LEDPWB SGND/5V 5V/WREST PAGEST/PLLSEL0 FMCOMA PLLSEL1/WSCLK FMCOMB WSDO/WSDI WSEL/WRDY OVMONOUT/N.C. FM_A FM_B DPMPWB YC11 DPLIM LM_A LM_B RMCOMA N.C. RMCOMB FRSTN RM_A...
  • Page 434 2KN/2KP Wiring diagram No.10 FMDPWB 2-10 DCPSPWB EPWB COOLING FAN REM 13-3 13-1 EPWB DLP FAN F REM FAN STOP B12 3-B2 COOLING FAN 1 CFM1 COOLING FAN 2 CFM2 DLP FAN F1 DEVFM1 DLP FAN F2 DEVFM2 Imaging unit PCB FAN 2 PWBFM1 PCB FAN 1...
  • Page 435 1-1 INSTALLATION GUIDE INSTALLATION GUIDE FOR SIDE FEEDER...
  • Page 436 E M4 × 12 dish screw........1 Procedure English F M3 × 6 Tap Tight S screw ......1 Before installing the large capacity deck Supplied parts G Clamp ............1 (deck), make sure the copier’s main power A Large paper deck........1 switch is turned off and that the power cord is Precautions B Guide plate ..........
  • Page 437 5. Use the M4 × 12 dish (E) screw to attach the 1. Cut the four hole covers (2) from the right 3. Hook one side of the guide plate (B) at the of the right cover, and fix by using the M3 × 6 cover (1) of the copier.
  • Page 438 8. Fix the fixing plate (5) at the long holes (6) by using two M4 × 6 TP screws (D). 6. Pull out the fixing plate (5) of the deck (A), and insert it into the bottom of the copier’s Align the V-groove of the fixing plate with the center of the guide (7) of the copier.
  • Page 439 9. Open the deck cover and top cover. Remove 10. Install the deck on the copier. Connect the signal line (10) from the deck to the connector (11) on the two screws (8) to remove the anchor the back of the copier. bracket (9).
  • Page 440 Correcting the inclination If the deck is not level, perform the following steps to adjust the inclination. 1. Loosen the two adjustment screws (14). 2. Slide the fixing plate (5) in the direction indicated by the arrow. Tighten the adjusting screws (14). 3.
  • Page 441 Adjusting the center line 4. Press the interrupt key. Select the deck for the test print mode. Print a test pattern. 5. Measure the offset L (mm) between the test pattern center (d) and the paper center (c). Loosen 1. Plug the copier into a power outlet, and turn the two fixing plate (5) screws.
  • Page 442 INSTALLATION GUIDE FOR LARGE SIZE SIDE FEEDER...
  • Page 443 Installation procedure F M3 × 6 tap tight S screw ......1 English G Clamp ............1 Supplied parts • Before installing the side feeder, make sure H Retainer ............ 1 the MFP main power switch is turned off and A Side feeder ..........
  • Page 444 1. Remove the four hole covers (2) from the 3. Insert a claw of the guide plate (B) into the 5. Remove the blue screw (3) from the left side right cover (1) of the MFP. top of the right cover (1) and secure the of the side feeder and pull out the fixing plate Use nippers or some other tool to trim the other side of the guide plate to the cover...
  • Page 445 6. Attach the retainer (H) to the fixing plate (4) 7. Open the right cover (1) of the MFP and using two M4 × 8 SEMS (D) screws. insert the retainer (H) to the MFP. Raise the retainer to insert it. 6.
  • Page 446 8. Attach the retainer (H) to the MFP using two M4 × 8 SEMS (D) screws. Use the long holes (5) to adjust the lengthwise position of the retainer and align the V-groove with the center of MFP guide (6). 8.
  • Page 447 9. Attach the side feeder to the MFP and connect the signal line (7) to the 11. Open the top cover (9) and remove the cushioning material and protec- connector (8) at the rear of the MFP. tive paper. 10. Attach the clamp (G) to the lower rear cover of the MFP to fasten the signal line (7).
  • Page 448 Checking inclination 2. Loosen the three screws (13) and lift the 3. Use a water level (15) to check that the front right cover (14) of the side feeder to remove and rear of the side feeder (A) are horizontal. 1.
  • Page 449 Adjusting inclination 2. Use a spanner (I) to loosen the nut (18). 4. After adjusting the height, tighten the nut 3. Place the spanner (I) on the caster nut (19) (18). 1. Remove each screw (16) and the two caster at the bottom of the side feeder and turn it to anchor brackets (17).
  • Page 450 5. Attach the caster anchor bracket (17) and the right cover in their original location. 6. Use M4 × 12 dish screw (E) to attach the Note: Make sure that the caster anchor bracket (17) is correctly oriented. switch contact plate (C) to the right back Note: Make sure that part (21) of the anchor bracket is placed on top of part (20) of the side feeder bottom cover (22).
  • Page 451 The following steps vary depending on the specified paper size. Refer to the corresponding page to perform the following steps in the order stated under each column of the paper size. 11 × 17 Step Page 8.5 × 4 A4R/8.5 × 11 11 ×...
  • Page 452 Adhering film Note: Adhere the film sheets starting from a1 (for inch specifications) or from b1 (for Adhere two supplied film (J) sheets on the paper lifter (23) when using 11 × 17, 11 × 8.5, A3 or A4 metric specifications). size paper.

  • Page 453: Setting Paper Size

    Setting paper size Checking the center line 5. Measure the right and left offset (L) between the paper center (25) and test pattern center 1. Plug the MFP into a power outlet, and turn 1. Place paper in the side feeder. (26).
  • Page 454 Adjusting the center line 2. Print another test pattern. 3. Repeat Steps 1 and 2 until the paper center 1. Loosen the two screws (27) on the retainer (H) and adjust offset (L) relative to the V-groove (each and test pattern center satisfies the standard gradation is 1 mm) and tighten the screws.

  • Page 455: Changing Paper Size

    Changing paper size 1. Open the top cover (10). Remove the four screws (28) to remove the rear cursor cover (29) and the front cursor cover (30). The factory default size is 8.5 × 14 for inch specifications and A3 for metric Note: Make sure not to break the claws when removing the rear cursor specifications.
  • Page 456 2. Remove the two screws (31) and the rear cursor (32). 3. Insert the cursor at the desired size position and tighten the two screws (31). Position the cursor as shown in Figure a for inch specifications and as shown in Figure b for metric specifications. Align the cursor with the marks (33)(34) for the desired paper size.
  • Page 457 4. Remove the two screws (35) and the guide (36). 5. Turn the MFP main power switch on (the paper lifter will automatically ascend to the upper limit position). 6. When the paper lifter has ascended to the upper limit position, turn the MFP main power switch off (as the paper lifter will continue descending when any paper touches the front switch).
  • Page 458 7. Load the paper of new size (37). 10.Attach the guide (36) to its original position. 8. Place the guide (36) between the front cursor (38) and the paper (37). 11. Turn the MFP main power switch on. 9. Position the front cursor (38) so that it lightly touches the guide (36) and securely tighten the two screws that were finger tightened in Step 3 on page 14.
  • Page 459 12. Press and hold the switch for the paper lifter Position the cursor as shown in Figure a for 16. Install the right cover (14) and close the top (37) until the paper lifter reaches to the low- inch specifications and as shown in Figure b cover (9).
  • Page 460 INSTALLATION GUIDE FOR DOCUMENT FINISHER...
  • Page 461 E Sponge............. 1 L Earth Plate B .......... 2 English F Staple cartridges ........2 M Clamp ............ 1 Supplied parts N M3 × 14 Tap Tight S screw ....3 G Staple cartridge (100V model) ....1 H M4 × 20TP Tap Tight S screws ....2 O M4 ×...
  • Page 462 Precautions Procedure 2. Fix two earth plate A (K) with the screw (N) to the cover lower left of the copier. Be sure to remove any tape and/or cushioning Before installing the finisher, turn the copier off material from supplied parts. from the main switch and unplug the power Do not remove the two fixing tapes (a) from cable from the wall outlet.
  • Page 463 3. As shown in the illustration, adhere the 4. Fix two earth plate B (L) with the screw (O) 5. Open the front cover. sponge (E) to the top cover of the finisher (A) to the front/back hooks (2) of the finisher. 6.
  • Page 464 7. Remove the screw (5) to pull out the con- 8. Cut out the hole covers (7) at two locations on the copier. necting rail (6) at the upper part of the fin- 9. Position the finisher (A) and the copier so the long pin (8) of the connecting plate (D) aligns with isher (A).
  • Page 465 11. Pressing down on the connecting rail (6), 12. Secure the link lever (4) with the screw (3) 13. Remove the four blue screws (12) locking secure it with the screw (5) you removed in you removed in step 6. each of the two separate retainers (14) to the step 7.
  • Page 466 14. Turn the internal tray lever (15) and pull out 15. Remove the fixing tape (16). 16. Remove the fixing tape (17) inside the fin- the intermediate tray (13). isher. 14. Faire tourner le le levier du plateau interne 15. Retirer la bande adhésive de fixation (16). 16.
  • Page 467 17. Raise the release handle (18) to open the 18. Load two staple cartridges (F) into the staple 19. Load the staple cartridge (G) into the staple intermediate tray (13). Remove the four holders (20) and (21), and press down on holder (22) on the back of the intermediate strips of fixing tape (19).
  • Page 468 21. Insert the two nuts (I) into the main tray (B). 24. Remove the two Lumiror films (24). 22. Secure the main tray (B) with two pins (J). 23. Install the sub tray (C) by fitting it from above into the hole (23) on the finisher (A) unit. 21.
  • Page 469 25. Remove the screw (25) from the copier to 26. Connect the signal cable (27) to the connec- 27. Re-tighten the screw (25) to install the signal detach the signal cable cover (26). tor of the copier. cable cover (26). Pass the signal cable through a cut of the signal cable cover as shown in the figure.
  • Page 470 28. Remove the screw (28) from the cover lower 30. This step is only applicable to the specifica- left of the copier. tion of 100 V for 82 cpm model. 29. Fit the clamp (M) to the signal cable (27) and 31.
  • Page 471 Correcting Paper Curling If the Paper Curls Downward (figure 4. Run paper through the machine and check if it is still curled downward. 1. In the non-sort mode, run paper through the “a”) 5. Repeat steps 1 to 4 until the ejected paper machine to perform a test copy.
  • Page 472 If the Paper Curls Upward (figure “b”) 3. Rotate the upper lever (37) by one scale in 5. Run paper through the machine and check if the direction of the larger numbers. it is still curled upward. 1. Open the front cover. There are 5 levels.
  • Page 473 Correcting centerfold-stapling (for multi finisher only) 3. If the staple position is misaligned, enter maintenance mode U248 and perform the 1. Perform test copies using various paper types. Configure the printer for saddle stapling and out- following adjustment for each paper size. put to the main tray.
  • Page 474 5. Adjust the setting value for each paper size. If the paper is stapled too far toward the paper eject side (as shown in “c” in the illustration), decrease the setting value. If the paper is stapled too far toward the paper feed side (as shown in “d” in the illustration), increase the setting value.
  • Page 475 INSTALLATION GUIDE FOR CENTERFOLD UNIT...
  • Page 476 F Backstop ..........1 *1: Use them in steps 6 to 9 (pages 4 and 5). English G Pins............4 *2: Use them in steps 18 to 21 (page 8). Supplied parts H Small springs ........... 2 A Centerfold unit ......... 1 I Unit lock hook ..........
  • Page 477 M Release pole assembly ......1 U Label sheet ..........1 Precautions N Release handle........1 Be sure to remove any tape and/or cushioning O Unit transport handle ....... 1 material from supplied parts. P Sliders............2 Q Medium stop ring ........1 R M4 ×...
  • Page 478 Procedure 1. Remove the four screws (1) to remove the Notes before installing the centerfold unit guide plate (2). Before installing the centerfold unit, turn the When installing the centerfold unit and multi 2. Remove the left lower shaft (3) from the fin- copier’s main switch off and unplug the power job tray as a set, first install the centerfold unit isher side plate.
  • Page 479 10 9 3. Open the front cover (4). Remove the screw 5. Remove two screws (7) and remove lower 6. Hook the backstop (F) onto the hook (9) (5) to remove the retainer (6). right cover (8). inside of the finisher plate, and install using 4.
  • Page 480 8. Fit in the release lever actuating plate (E) from the front side of the machine to the hole (11) and 9. Attach one end of the small spring (H) to the fix with two pins (G). Then, make sure that the release lever actuating plate (E) slides leftward release lever actuating plate (E) and hang and rightward.
  • Page 481 11. Fit in one end of the release pole assembly (M) to the square bypass hole (14) and the other end 13. Fit the medium stop ring (Q) onto the release (15) to the hole (16) with the projection, with the D-cut (17) of the release pole assembly (M) pole assembly (M).
  • Page 482 14. Secure the release handle (N) to the release 15. Place the slider (P) on the projections (19) on the finisher rear side-plate and secure with three pole assembly at the machine front side with M4 x 8S Tight Bind screws (R). the M4 x 10 TP screw (S).
  • Page 483 17. Pull out the intermediate tray of the finisher (21). 20. Fit the large stop ring (K) onto the lower part 18. Fit the large stop ring (K) onto the unit lock rod (J). of the unit lock rod (J). 19.
  • Page 484 23. Remove the three fixing tapes (25) and the 24. Pull the left and right sliders (P) out until they 25. Slide the centerfold unit (A) in the direction of cushioning material (26). stop. Install the centerfold unit (A) positioning the arrow.
  • Page 485 27. Fit the left cover (C) and right cover (D) into 28. Attach the eject tray (B) to the centerfold unit 29. Fit in the projection of the douser detecting the rectangular hole on each side of the cen- (A) by fitting the projection (31) of the tray PI (T) with the cutout on the centerfold unit’s ter fold unit, and secure each cover with the into the hole (32) inside the unit.
  • Page 486 U-1 20 mm 30. Push the release lever actuating plate (E). 32. Secure the unit transport handle (O) with the 33. After cleaning each area with alcohol, 31. Push in the centerfold unit (A) until it stops. M4 x 8S Tight Bind screw (R). adhere the following labels from the label sheet (U) at the locations shown in the illus- tration: (U)-1 (G7), (U)-2.
  • Page 487 Operation check Adjustment of centerfold position 2. If the sheets are not folded at the correct position, perform maintenance mode U248 1. Make a test copy to check that the centerfold 1. Make a test copy in centerfold mode. A test to make the following adjustments for each unit operates correctly.
  • Page 488 4. Set the value for each paper size. 5. Press the START key to confirm the value. when the top side is wider (a): Increase the 6. Cancel the maintenance mode. value. You should also adjust saddle staple location (SADDLE STAPLE ADJUST) at this time. when the top side is narrower (b): Decrease See the following for details.
  • Page 489 NOTICE English This accessory is for use only with the following Applicant's Listed Machine. Refer to the supplied guide to install the accessory in the field. Model ： DF-650(B) AVIS Français Cet accessoire est utilisable uniquement avec le copieur figurant dans la liste du demandeur suivant. Se reporter au guide fourni pour installer l'accessoire dans le champ.
  • Page 490 INSTALLATION GUIDE FOR MULTI JOB TRAY...
  • Page 491 F Right cover..........1 N Motor front cover........1 English G Left cover ..........1 Supplied parts H Size detection switchs ......2 Precautions I M3 × 5 binding screws ......2 A Multi job tray ..........1 Be sure to remove any tape and/or cushioning J M4 ×...
  • Page 492 Procedure * Unpacking Precautions * Notes before installing the multi job tray Before installing the multi job tray, turn the Hold the frame at the front and back when When installing the multi job tray and center- copier off from the main switch and unplug the removing the multi job tray from the box.
  • Page 493 1. Remove the two screws (1) locking down the 3. Remove the four screws (6) locking down 4. Attach the two size detection switches (H) to top cover lid (2) followed by the lid. the top cover lid guide (7) followed by the the eject stay (8) by inserting the tabs (9), 2.
  • Page 494 6. Attach the bin front guide plate (C) and bin 7. Attach the multi job tray (A) to the bin front guide plate (C) and bin rear guide plate (D) by insert- rear guide plate (D) to the finisher by insert- ing the six pulleys (11) at the tray front and rear into the plates.
  • Page 495 8. Measure the height “a” against the scale to 9. Loosen the two screws (14). 11. Pull out the gear shaft (16), slide the retainer make sure that the multi job tray (A) is posi- 10. With the retainer (15) slid upward, push in (15) to its original position and retighten the tioned properly to stay level from front to the gear shaft (16) while holding the bottom...
  • Page 496 12. Attach the bin guide plate retainer (E) with 14. Attach the right cover (F) with four M4 x 10 15. Attach the left cover (G) by inserting the two two M4 x 6 binding screws (J). TP screws (K). pegs (17) into the square holes, and lock in 13.
  • Page 497 16. Affix a bin No. label (L) to each of the five 17. Attach the eject bin (B) with the label (L) eject bins (B). No.1 affixed at the uppermost shelf of the multi job tray (A) by inserting the three claws (18) into the square holes.
  • Page 498 18. Connect the 3-pin connector (19) at the back side of the eject bin (B). 19. Fit the cable (20) of the 3-pin connector (19) to the inside of the eject bin (B) and lock down with the cable retainer (21). 20.
  • Page 499 22. Insert the two lugs (24) of the motor front 23. Connect the signal cable (25) of the multi job 24. Plug the copier’s power cable into a wall out- cover (N) into the rectangular holes, and tray (A) to the finisher connector. let and turn the copier on from the main secure them with the M4 x 10 TP screw (K).
  • Page 500 NOTICE English This accessory is for use only with the following Applicant's Listed Machine. Refer to the supplied guide to install the accessory in the field. Model ： DF-650(B) AVIS Français Cet accessoire est utilisable uniquement avec le copieur figurant dans la liste du demandeur suivant. Se reporter au guide fourni pour installer l'accessoire dans le champ.
  • Page 501 INSTALLATION GUIDE FOR PUNCH UNIT...
  • Page 502 (120/220/230/240V) (100V) E Punch waste box ........1 Precautions English F Guide ............1 Be sure to remove any tape and/or cushioning Supplied parts G M4 × 10 tap Tight S screws ..... 3 material from supplied parts. A Punch unit..........1 H Wire saddles ..........
  • Page 503 3 3 6 Installation Procedure 2. Remove two screws (3) and remove the 3. Open the upper cover. plate (4). 4. Remove the two screws (6) to remove the Before installing the punch unit, make sure the Unplug the signal cable connector (5). guide plate (7).
  • Page 504 6. Secure the punch unit (A) with two M4 × 10 5. Making sure that part (8) of the punch unit is touched part (9) of the finisher, insert the punch unit as far as it will go between the rails that held the guide plate you removed in step 4. Tap Tight S screws (G).
  • Page 505 7. Connect the 3-pin connector of the solenoid 9. Slide the guide (F) along the rails on the bot- 11. Insert the assembly tank holder (B) into the holes (10) to the 3-pin connector (11) on the front tom of the punch unit so it hooks on the tabs. side the side of the finisher and press it downwards of the finisher.
  • Page 506 14. Insert the middle tray (14) of the finisher to 16. Fit in the tab of the punch PCB (C) to the hole its original position. Install the punch waste on the back of the finisher, and secure it with box (E).
  • Page 507 17. Perform the following seven connections. 18.Secure wires at one location with wire saddle (H). Top: 2-pin power cord (D) and 2-pin motor connector (15); 6-pin power 19.Secure wires with clamp (I) and fix with screw (G). cord (D) and 6-pin sensor connector (16) 20.Fasten the snap-on band on core (22) to the hole on the finisher frame.
  • Page 508 Centering punch-holes 5. Adjust the position of the punch unit A. When holes are punched too far forward (figure “a”) Confirm the center position of each drawer in the copier is correct. Per- Slide the punch unit A to the machine rear ( form the following steps to adjust the punch holes.
  • Page 509 a: 9.5 ± 2 mm a: 5.5 ± 2 mm Adjusting distance from leading edge to punch-holes 2. Check that the distance “a” between the punch-holes and the paper leading edge is 1. In the punch mode, perform a test copy with paper fed from the MP tray. within the reference value.
  • Page 510 3. If punch hole position “a” is not within the ref- 5. Change the setting value. erence value, enter maintenance mode If “a” is shorter than the reference value, increase the setting value. U248 to perform the following adjustment If “a” is larger than the prescribed value, decrease the setting value. procedure.
  • Page 511 NOTICE English This accessory is for use only with the following Applicant's Listed Machine. Refer to the supplied guide to install the accessory in the field. Model ： DF-650/650(B) AVIS Français Cet accessoire est utilisable uniquement avec le copieur figurant dans la liste du demandeur suivant. Se reporter au guide fourni pour installer l'accessoire dans le champ.
  • Page 512 INSTALLATION GUIDE FOR STOPPER GUIDE...
  • Page 513 5 10mm Supplied parts 1. Secure the stopper ass’y (A) to the finisher 2. After cleaning with rubbing alcohol, affix the Supplied parts English English sub tray with three screws (D). Be careful. appropriate operation label (B),(C) or (E),(F) A Stopper Ass’y ........... 1 A Stopper Mount ........
  • Page 514 5 10mm Be careful. The stopper (B) hole on the 2. Remove the screw (3) from the motor front 3. Hook the guide assembled in step 1 to the 4. After installing the guide ass’y, hold the 6. After cleaning with rubbing alcohol, affix the English stopper mount (A) varies from the inch cover (2) attached to the assembly main unit...
  • Page 515 INSTALLATION GUIDE FOR PRINTING SYSTEM...
  • Page 516 INSTALLATION GUIDE Supplied parts Option Turn the copier’s main switch to OFF and unplug 2. Slide in the printing system (A) along the English the copier from the power supply before starting rails. Secure it with the five screws (1). A Printing System ........1 B Printer Network Kit .........
  • Page 517 Install the (optional) printer network Install the (optional) HD-10 hard disk. Installing the Serial Interface (Option) Installing the Optional Memory DIMM kit. 1. Remove the two pins (6) to remove the HDD cover (5). 1. Remove the five screws (7) and the two pins (8) to remove the printer system (A) and the cover 1.
  • Page 518 INSTALLATION GUIDE FOR SCAN SYSTEM...
  • Page 519 INSTALLATION GUIDE Supplied parts 1. Remove the two screws (1) to remove the 3. Remove the eight screws (5) to remove the 4. Securely push the connector CN5 on the English cover (2). right sequence cover (6). scanner board (A) all the way into the con- A Scanner board..........1 for Scan System 2.

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Taskalfa 820

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