Kyocera Mita KM-4530 Service Manual
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Kyocera Mita KM-4530 Service Manual

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KM-4530/5530
SERVICE
MANUAL
Published in Apr.'02
2BC70761
Revision 1

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Summary of Contents for Kyocera Mita KM-4530

  • Page 1: Service Manual

    KM-4530/5530 SERVICE MANUAL Published in Apr.’02 2BC70761 Revision 1...
  • Page 2 CAUTION DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY REPLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE RECOMMENDED BY THE MANUFACTURER. DISPOSE OF USED BATTERIES ACCORDING TO THE MANUFACTURER’S INSTRUCTIONS. ATTENTION IL Y A DANGER D’EXPLOSION S’IL Y A REMPLACEMENT INCORRECT DE LA BATTERIE. REMPLACER UNIQUEMENT AVEC UNE BATTERIE DU MÊME TYPE OU D’UN TYPE REC- OMMANDÉ...

  • Page 3: 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 4 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 5: 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 6: Precautions For Maintenance

    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 7 • Do not pull on the AC power cord or connector wires on high-voltage components when removing them; always hold the plug itself....................... • Do not route the power cable where it may be stood on or trapped. If necessary, protect it with a cable cover or other appropriate item.

  • Page 8: Table Of Contents

    2BC/D CONTENTS 1-1 Specifications 1-1-1 Specifications ............................1-1-1 1-1-2 Parts names and their functions ......................1-1-5 (1) Copier .............................. 1-1-5 (2) Operation panel ..........................1-1-6 1-1-3 Machine cross section ........................... 1-1-7 1-1-4 Drive system ............................1-1-8 (1) Drive system 1 (optical section) ....................... 1-1-8 (2) Drive system 2 (paper feed motor drive train) .................
  • Page 9 2BC/D-1 1-5-3 Image formation problems ........................1-5-31 (1) No image appears (entirely white)....................1-5-33 (2) No image appears (entirely black)....................1-5-33 (3) Image is too light........................... 1-5-34 (4) Background is visible........................1-5-34 (5) A white line appears longitudinally....................1-5-34 (6) A black line appears longitudinally.
  • Page 10 2BC/D (29) Feed clutch 4 does not operate..................... 1-5-45 (30) Feed clutch 5 does not operate..................... 1-5-45 (31) Paper feed clutch 1 does not operate.................... 1-5-46 (32) Paper feed clutch 2 does not operate.................... 1-5-46 (33) Paper feed clutch 3 does not operate.................... 1-5-46 (34) Paper feed clutch 4 does not operate.
  • Page 11 2BC/D (6) No refeed............................1-5-55 (7) Paper jams............................ 1-5-55 (8) Toner drops on the paper conveying path..................1-5-56 (9) Abnormal noise is heard........................ 1-5-56 • DF ..............................1-5-57 (1) No primary original feed........................ 1-5-57 (2) No secondary original feed......................1-5-57 (3) Originals jam.
  • Page 12 2BC/D-1 (1) Detaching and refitting the charger wires and cleaning pads ............1-6-48 1-6-8 Cleaning section ..........................1-6-50 (1) Detaching and refitting the drum separation claw and cleaning lower seal ........1-6-50 (2) Detaching and refitting the cleaning blade ..................1-6-52 (3) Detaching and refitting the thrust gear ..................
  • Page 13 2BC/D 2-1-9 Feedshift and eject sections ........................ 2-1-33 2-1-10 Duplex section ............................. 2-1-34 2-1-11 DF ............................... 2-1-37 (1) Original feed section ........................2-1-37 (1-1) Original feed timing ....................... 2-1-38 (2) Original switchback section ......................2-1-39 (2-1) Operation of original switchback ................... 2-1-40 (3) Original conveying section ......................

  • Page 14: Specifications

    2BC/D 1-1-1 Specifications 45 cpm copier Type ..........Console Copying system ......Indirect electrostatic system Originals ......... Sheets and books Maximum size: A3/11" × 17" Original feed system ...... Fixed Copy paper ........Drawers: Plain paper (60 – 80 g/m Duplex unit: Plain paper (64 –...
  • Page 15 2BC/D Fixing system ......... Heat roller Heat source: Halogen heaters (main 970 W for 120 V specifications/1150 W for 220-240 V specifications, sub 970 W for 120 V specifications/1150 W for 220-240 V specifications) Control temperature: 185°C/365°F (at normal ambient temperature) Abnormally high temperature protection devices: 150°C/302°F thermostats Fixing pressure: 265 N Charge erasing system ....
  • Page 16 2BC/D 55 cpm copier Type ..........Console Copying system ......Indirect electrostatic system Originals ......... Sheets and books Maximum size: A3/11" × 17" Original feed system ...... Fixed Copy paper ........Drawers: Plain paper (60 – 80 g/m Duplex unit: Plain paper (64 – 80 g/m Bypass table: Plain paper (45 –...
  • Page 17 2BC/D Fixing system ......... Heat roller Heat source: Halogen heaters (main 970 W for 120 V specifications/1150 W for 220-240 V specifications, sub 970 W for 120 V specifications/1150 W for 220-240 V specifications) Control temperature: 185°C/365°F (at normal ambient temperature) Abnormally high temperature protection devices: 150°C/302°F thermostats Fixing pressure: 265 N Charge erasing system ....

  • Page 18: Parts Names And Their Functions

    2BC/D 1-1-2 Parts names and their functions (1) Copier & ‹ ‚ · — ¤ › fi ⁄ fl ‡ ⁄ Œ ´ „ Figure 1-1-1 1 Operation panel # Original table fi Main switch 2 Operation right cover $ Original insert guides fl...

  • Page 19: Operation Panel

    2BC/D (2) Operation panel & Figure 1-1-2 1 Start key & indicator lamp # Scanner key & indicator lamp 2 Stop/clear key $ Auto selection key & indicator lamp 3 Reset key % Job build key & indicator lamp 4 Energy saver key & indicator lamp ^ Repeat copy key &...

  • Page 20: Machine Cross Section

    2BC/D 1-1-3 Machine cross section Light path Paper and original path Figure 1-1-3 Machine cross section 1 Paper feed section 7 Charge erasing section 2 Main charging section 8 Fixing section 3 Optical section 9 Feedshift and eject section 4 Developing section 0 Duplex section 5 Transfer and paper conveying section ! DF...

  • Page 21: Drive System

    2BC/D 1-1-4 Drive system (1) Drive system 1 (optical section) Figure 1-1-4 1 Scanner motor pulley 2 Scanner drive belt 3 Scanner drive pulley 4 Scanner wire drum 5 Scanner wire 6 Scanner wire pulley 1-1-8...

  • Page 22: Drive System 2 (Paper Feed Motor Drive Train)

    2BC/D (2) Drive system 2 (paper feed motor drive train) Figure 1-1-5 1 Idle gear 30 # Paper feed drive pulley 29/52 2 Pulley 16 $ Idle pulley 31/42 3 Pulley 20 % Tension pulley 20 4 Developing agitation drive belt ^ Paper feed drive belt 5 Gear 32 &...

  • Page 23: Drive System 3 (Deck Drive Motor Drive Train)

    2BC/D (3) Drive system 3 (Deck drive motor drive train) Figure 1-1-6 1 Pulley 26 ! Deck drive motor gear 2 Tension pulley @ Pulley 20 3 Paper feed drive belt # Deck conveying belt 4 Idle gear 26 $ Deck feed clutch gear 5 Paper feed clutch 3 gear % Deck gear 27/45 6 Feed clutch 5 gear...

  • Page 24: Drive System 4 (Image Formation Motor Drive Train)

    2BC/D (4) Drive system 4 (image formation motor drive train) Figure 1-1-7 1 Bypass paper feed idle gear 0 Drum drive belt 2 Gear 20 ! Gear 19 3 Gear 30 @ Registration gear 24 4 Gear 39/25 # Registration clutch gear 5 Drum drive pulley 23/84 $ Pulley 40/28 6 Image formation motor gear...

  • Page 25: Drive System 5 (Paper Conveying Motor Drive Train)

    2BC/D (5) Drive system 5 (Paper conveying motor drive train) Figure 1-1-9 1 Pulley 32 # Gear 18/26 2 Pulley 24 $ Fixing joint gear 3 Pulley 22 % Heat roller gear 4 Eject drive belt ^ Heat roller 5 Eject drive gear &...

  • Page 26: Drive System 6 (Duplex Section)

    2BC/D (6) Drive system 6 (duplex section) & 7 % $ Figure 1-1-10 1 Duplex joint gear 0 Front transfer drive gear 2 Clutch gear 26 ! Gear 22 3 Paper conveying pulley 40 @ Gear 18 4 Paper conveying drive belt # Gear 17 5 Paper conveying tension pulley $ Gear 40...

  • Page 27: Drive System 7 (Df)

    2BC/D (7) Drive system 7 (DF) & As viewed from machine rear Figure 1-1-11 DF (inside rear of machine) 1 Original feed motor pulley 0 DF registration pulley 28/18 2 Pulley 35/22/22 ! Idle gear 15 3 Idle gear 26 @ Idle gear 20 4 Original feed clutch gear # Switch back gear 18...

  • Page 28: Drum

    2BC/D 1-2-1 Drum Note the following when handling or storing the drum. • When removing the image formation unit, never expose the drum surface to strong direct light. • Keep the drum at an ambient temperature between –20°C/–4°F and 40°C/104°F and at a relative humidity not higher than 90% RH.

  • Page 29: Unpacking And Installation

    2BC/D-1 1-3-1 Unpacking and installation (1) Installation procedure Start Unpack. Initializing the developer Removing the securing tape and spacer. (run of maintenance mode U130). Removing the pins Applying toner to the cleaning blade holding light source units 1 and 2. (run of maintenance mode U160).
  • Page 30 2BC/D-1 Unpack ⁄ fi ¤ & ‹ )› Figure 1-3-1 Unpacking 1 Copier $ Supports 2 Machine cover % Bar code labels 3 Bottom pad ^ Power code 4 Upper left pad & Eject tray 5 Upper right pad * Drum set 6 Skid ( Tray spacer 7 Hinge joints...
  • Page 31 2BC/D Removing the securing tape and the spacer. Tape 1. Remove the piece of tape that secures the Tape bypass tray. 2. Remove the piece of tape that secures the right cover. 3. Remove the two pieces of tape that secure the right rear cover.
  • Page 32 2BC/D-1 9. Pull out drawer 3, remove the spacer. 10. Pull out drawer 4, remove the spacer. Spacer * The lift or the guide may be deformed or damaged when turns the main switch on with the spacers mounted. Consequently, be sure to remove the spacers. Spacer Figure 1-3-5 11.
  • Page 33 2BC/D Removing the developing unit. 1. Open the front cover, pull out the hinge shaft to remove, and remove the front cover. Front cover Hinge shaft Figure 1-3-8 2. Remove the screw holding the image formation left cover and then the cover. Image formation left cover Figure 1-3-9 3.
  • Page 34 2BC/D 4. Remove the two screws and open the image Image formation rail formation rail. Figure 1-3-11 1P connector Sub toner hopper 5. Remove the 1P connector from the developing unit and the 4P connector from the sub toner hopper. Raise the shutter a little and slide it toward the front side of the machine.
  • Page 35 2BC/D Adding developer. 1. Remove the two screws and the two hooks and remove the upper developer cover. * When adding developer, place the developing Upper developer cover unit on a level location. Hook Hook Figure 1-3-14 2. Shake the developer bottle sufficiently to stir the developer.
  • Page 36 2BC/D-1 Connector Installing the drum. Main charger unit 1. Remove the two connectors from the main charger unit. 2. Use a flat-blade screwdriver to loosen the pin at the rear of the main charger unit and remove the main charger unit from the image formation unit. Connector Figure 1-3-16 Rear drum...
  • Page 37 2BC/D Adjusting the fixing pressure. 1. Remove the blue screw that secures the paper Paper conveying unit conveying unit. 2. Pull out the paper conveying unit. Blue screw Figure 1-3-19 3. Open the eject cover. 4. Turn the fixing press nuts on the front and rear of the fixing unit clockwise to adjust the fixing pressure.
  • Page 38 2BC/D Connecting the power cord. 1. Refit the front cover to its original position. 2. Connect the power cord to the connector on the copier.* * 200-240 V specifications only. 3. Insert the power plug into the wall outlet. and turn on the main switch with the front cover open. Initializing the developer (run of maintenance mode U130).
  • Page 39 2BC/D Operation right cover Adding toner. 1. Open the operation right cover. Figure 1-3-22 2. Hold a new toner bottle upside down and tap the bottom approximately 10 times. Toner bottle Figure 1-3-23 3. Shake the toner bottle up and down and from side to side approximately 10 times.
  • Page 40 2BC/D 4. Push the round hole of the toner bottle to the metal pin at the opening for toner replenishment. 5. While pushing down the toner bottle, turn it 90° clockwise. Metal pin Figure 1-3-25 6. Wait until toner drops. Figure 1-3-26 7.
  • Page 41 2BC/D-1 8. Turn the toner bottle to the original position while pushing it down, and gently remove it from the opening for toner replenishment. 9. Close the operation right cover. Figure 1-3-28 Connect the drawer heater relay cable and attach the OFF label. 1.
  • Page 42 2BC/D-1 4. Attach the OFF label to the OFF ( ) side of the main switch. OFF label Figure 1-3-30 Make test copies. 1. Set paper in a drawer and execute a test copy run. Completion of the machine installation. 1-3-14...

  • Page 43: Setting Initial Copy Modes

    2BC/D-1 1-3-2 Setting initial copy modes Factory settings are as follows: Maintenance Contents Factory setting item No. Switching between double and single counts Double count (A3/LEDGER) U253 U254 Turning auto start function on/off Setting auto clear time U255 Turning auto preheat/energy saver function on/off U256 Switching copy operation at toner empty detection SINGLE MODE, 5...

  • Page 44: Installing The Key Counter (Option)

    2BC/D 1-3-3 Installing the key counter (option) Key counter installation requires the following parts: Key counter set (P/N 2A369703) Contents of the set: • Key counter cover (P/N 2A360010) • Key counter retainer (P/N 66060030) • Key counter cover retainer (P/N 66060022) •...
  • Page 45 2BC/D 3. Remove the developing duct cover and middle right cover. 4. Cut out the aperture plate on the middle right cover using nippers. 5. Pass the 4-pin connector of the key counter through the apertures in the key counter cover retainer and middle right cover, and insert into the 4-pin connector inside the machine.

  • Page 46: Installing The Multi/Simple Finisher (Option)

    2BC/D 1-3-4 Installing the multi/simple finisher (option) Left cover Preparation 1. Attach the paper insertion aid guide plate to the left cover of the copier and lock down with the two M4 × 10 tap-tight binding screws. Paper insertion aid guide plate Figure 1-3-34 2.
  • Page 47 2BC/D 4. Open the front cover of the finisher. 5. Remove the screw and raise the connecting lever at the bottom of the finisher. Fitting the projection into the hole lowers the hooks. Hooks Projection Hole Connecting lever Figure 1-3-37 6.
  • Page 48 2BC/D 7. Join the finisher and the copier by hanging the hooks onto the fittings inside the copier. 8. Join the finisher and the copier so that the long pin of the finisher connecting plate is inserted into the hole at the rear of the finisher and the two short pins into the holes on the connecting rail.
  • Page 49 2BC/D 10. Slide the connecting lever rightward and lock down with the screw removed in step. Connecting lever Figure 1-3-41 11. Remove the four blue screws locking each of the two separate retainers to the intermediate tray and detach both retainers. Blue screws Intermediate tray Separate retainers...
  • Page 50 2BC/D 12. Pull out the intermediate tray. 13. Remove the strip of fixing tape from the Release lever release lever. Intermediate tray Strip of fixing tape Figure 1-3-43 14. Raise the release lever to open the intermediate tray, and then remove the four strips of fixing tape.
  • Page 51 2BC/D 16. Fit the main tray with two hexagonal nuts. 17. Secure the main tray with two pins. 18. Attach the sub tray to the finisher by inserting the projections at the front and back of the sub tray into the holes of the finisher. (For the multi finisher only) 19.

  • Page 52: Installing The Side Deck (Option)

    2BC/D 1-3-5 Installing the side deck (option) Middle right cover Preparation 1. Remove the screw locking down the developing duct cover followed by the cover. Then, disconnect the 2-pin connector from the cooling fan. 2. Remove the six screws locking down the Bypass table bypass table and open the table.
  • Page 53 2BC/D 7. Reattach the paper feed section lower cover, right rear lower cover and right front lower cover. 8. Open the right cover and remove from the copier by raising the cover in the direction of the arrow. Right cover Figure 1-3-51 9.
  • Page 54 2BC/D 11. Lock down the upper and lower merge guides Upper merge guide with the four M3 × 6 TP-A bronze screws. Lower merge guide M3 × 6 TP-A bronze screws Figure 1-3-54 12. Attach the interlock switch backstop to the right rear lower cover with the M4 ×...
  • Page 55 2BC/D 15. Open the right cover. Attach the retaining rail to the copier with the V-groove of the rail aligned with the center of the scale located at the base of the copier, using the two M4 × 6 TP-A chromate screws. Center Scale V-groove...

  • Page 56: Installing The Network Scanner Kit (Option)

    2BC/D 1-3-6 Installing the Network scanner kit (option) Middle rear B cover Middle rear C cover Preparation 1. Remove three screws and remove the middle rear B cover. 2. Remove two screws and remove the middle rear C cover. 3. Remove four screws and remove the middle rear cover.
  • Page 57 2BC/D 230 V specifications only Ethernet cable connector 9. Fit the Ethernet cable to the core by winding it Core one turn around the core. 10. Fit the Ethernet cable described in step 9 to the Ethernet cable connector. Figure 1-3-62 11.

  • Page 58: Installing The Printer Kit (Option)

    2BC/D 1-3-7 Installing the Printer kit (option) Preparation 1. Remove two screws and take off the cover. Cover Figure 1-3-64 2. Push the printing system all the way in along Printing system the rails, and fasten it to the controller box with two screws.
  • Page 59 2BC/D Install the (optional) printer network kit. 3. Remove two screws and take off the cover. 4. Push the printer network kit all the way in along the rails, and fasten it to the controller box with two screws. Printer network kit Cover Figure 1-3-66 Install the (optional) hard disk.
  • Page 60 2BC/D Installing the Optional Bar-Code Reader 7. Fasten the serial connector in place with two screws. Serial connector Figure 1-3-68 Installing the Optional Memory DIMM Optional memory DIMM 8. Remove the printing system, and insert the optional memory DIMM firmly into either of Two hooks the memory slots.

  • Page 61: Installing The Tandem Kit (Option)

    2BC/D 1-3-8 Installing the tandem kit (option) Preparation 1. Remove the two screws securing the middle Middle rear C rear C cover and then the cover. cover 2. Remove the five screws securing the middle rear cover and then the cover. 3.
  • Page 62 2BC/D 7. Insert CN2 on the assembly relay PCB into Interface PCB CN1 on the interface PCB for installation. Assembly relay PCB Figure 1-3-73 8. Insert CN1 on the assembly relay PCB into CN5 on the main PCB of the copier. Main PCB Figure 1-3-74 9.
  • Page 63 2BC/D 11. Secure the interface mounting plate with the two screws removed in step 5. Interface mounting plate 12. Secure the connector of the interface PCB to the interface mounting plate with two M2.6 × 5 brass binding screws. Screws M2.6 ×...

  • Page 64: Copier Management

    2BC/D 1-4-1 Copier management This copier is equipped with the maintenance mode for service personnel and the management mode that can be used also by users (mainly by copier administrator). In this copier management mode, settings such as default settings can be changed.

  • Page 65: Setting Department Management Items

    2BC/D (2) Setting department management items Enabling/disabling department management 1. Select “On” or “Off”. Registering a new department code Sets a department code and the limit of the Enabling/disabling printer department management number of copies for that department. 1. Select “On” or “Off” under “Printer”. 1.

  • Page 66: Copy Default

    2BC/D-1 (4) Copy default Default drawer Sets the drawer to be selected in cases such as Exposure mode after the reset key is pressed. Selects the exposure mode at power-on. 1. Select “Default drawer”(“Default cassette”) 1. Select “Exposure mode” and press the and press the [Change #] key.
  • Page 67 2BC/D-1 Manual exposure adjustment (Photo) Display register key Adjusts the exposure to be used when photo Sets whether or not to display the Register key in original is selected for the image mode. the copy operation screen. 1. Select “Manual exp. adj. (Photo)” and press the 1.

  • Page 68: Machine Default

    2BC/D-1 (5) Machine default Auto shutoff time Sets the auto shutoff time. Auto drawer switching 1. Select “Auto shut-off time” and press the Enables or disables the auto drawer switching [Change #] key. function and sets whether “All types of paper” or 2.

  • Page 69: Bypass Setting

    2BC/D-1 (7) Document management default setting Management code change Changes the management code. Document list print out 1. Select “Management code change” and press Prints out each job list. the [Change #] key. 1. Press the function key to print out the 2.

  • Page 70: Hard Disk Management

    2BC/D (8) Hard disk management Deletes the invalid data in the hard disk. 1. Press the [On] key. 2. Press the [Close] key. (9) Report Outputs the setting reports. 1. Press the [Print form] key. 2. Select the report. Copy report/Option report/Counter report/ Machine report (10) Language Switches the language to be displayed on the...

  • Page 71: Maintenance Mode

    2BC/D 1-4-2 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 or numeric keys.

  • Page 72: Maintenance Mode Item List

    2BC/D-1 (2) Maintenance mode item list Item Initial Section Maintenance item contents setting* General U000 Outputting 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 000000 U005 Copying without paper...
  • Page 73 2BC/D-1 Item Initial Section Maintenance item contents setting* Optical U066 Adjusting the leading edge registration for scanning an original on the contact glass • Leading edge registration/Leading edge registration for rotate copying –10/0 U067 Adjusting the center line for scanning an original on the contact glass •...
  • Page 74 2BC/D-1 Item Initial Section Maintenance item contents setting* Developing U158 Checking/clearing the developing count Fixing and U160 Applying toner to the cleaning blade — cleaning U161 Setting the fixing control temperature • Control temperature during copying • Primary stabilization fixing temperature •...
  • Page 75 2BC/D-1 Item Initial Section Maintenance item contents setting* U277 Setting auto application change time Mode setting U329 Default setting Auto rotation copy/Sort copy • Auto rotation copy/Sort copy ON/ON U330 Setting the number of sheets to enter stacking mode during sort operation U331 Switching the paper ejection mode Face-up ejection U332 Setting the size conversion factor...
  • Page 76 2BC/D-1 This page is intentionally left blank. 1-4-13...

  • Page 77: Contents Of Maintenance Mode Items

    2BC/D-1 (3) Contents of maintenance mode items Maintenance Description item No. U000 Outputting an own-status report Description Outputs lists of the current settings of the maintenance items, and paper jam and service call occurrences. Purpose To check the current setting of the maintenance items, or paper jam or service call occurrences. Before initializing or replacing the backup RAM, output a list of the current settings of the maintenance items to reenter the settings after initialization or replacement.
  • Page 78 2BC/D Maintenance Description item No. U003 Setting the service telephone number Description Sets the telephone number to be displayed when a service call code is detected. Purpose To set the telephone number to call service when installing the machine. Method Press the start key.
  • Page 79 2BC/D-1 Maintenance Description item No. U005 Copying without paper Description Simulates the copy operation without paper feed. Purpose To check the overall operation of the machine. Method 1. Press the start key. The screen for selecting an item is displayed. 2.
  • Page 80 2BC/D-1 Maintenance Description item No. U019 Displaying the ROM version Description Displays the part number of the ROM fitted to each PCB. Purpose To check the part number or to decide if the ROM version is new from the last digit of the number. Method Press the start key.
  • Page 81 2BC/D-1 Maintenance Description item No. U022 Initializing backup memory Description Initializes only the data set for the optical section. Purpose To be executed after replacing the scanner unit. Method 1. Press the start key. The screen for executing is displayed. 2.
  • Page 82 2BC/D Maintenance Description item No. U031 Checking switches for paper conveying Description Displays the on-off status of each paper detection switch on the paper path. Purpose To check if the switches for paper conveying operate correctly. Method 1. Press the start key. A list of the switches, the on-off status of which can be checked, are displayed. 2.
  • Page 83 2BC/D-1 Maintenance Description item No. U032 Checking clutch operation Description Turns each clutch on. Purpose To check the operation of each clutch. Method 1. Press the start key. The screen for selecting an item is displayed. 2. Select the clutch to be operated. The selected item is displayed in reverse, and the clutch turns on for 1 s. Display Clutches SB FEED...
  • Page 84 2BC/D Maintenance Description item No. U035 Setting folio size Description Changes the image area for copying onto folio size paper. Purpose To prevent the image at the trailing edge, or right or left side of the paper from not being copied by setting the actual size of the folio paper used.
  • Page 85 2BC/D-1 Maintenance Description item No. U053 Adjusting motor speed standard Description Performs fine adjustment of the speeds of the motors. Purpose Used to adjust the speed of the respective motors when the magnification is not correct. Method Press the start key. The screen for adjustment is displayed. Setting 1.
  • Page 86 2BC/D-1 Maintenance Description item No. U054 Adjusting the amount of slack in the paper Adjustment See page 1-6-20. U059 Setting fan mode Description Sets the rotation time of conveying fan motor after stop of drive. Purpose For prevention of faulty image caused by increase of ozone inside the machine, the rotation time of conveying fan motor after stop of drive is set to 30 seconds (MODE1) as the default setting.
  • Page 87 2BC/D-1 Maintenance Description item No. U063 Adjusting the shading position Description Changes the shading position. Purpose Used when white lines 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 88 2BC/D-1 Maintenance Description item No. U073 Checking scanner motors Description Simulates the scanner operation under arbitrary conditions. Purpose To check scanner operation. Method 1. Press the start key. The screen for selecting an item is displayed. 2. Select the item to be changed. The selected item is displayed in reverse. 3.
  • Page 89 2BC/D Maintenance Description item No. U074 Executing DF automatic adjustment Description Uses a specified original and automatically adjusts the following items in the DF scanning section. • Adjusting the DF magnification (U070) • Adjusting the DF scanning timing (U071) • Adjusting the DF center line (U072) •...
  • Page 90 2BC/D Maintenance Description item No. U089 Outputting a MIP-PG pattern Description Selects and outputs the MIP-PG pattern created in the copier. Purpose When performing respective image printing adjustments, used to check the machine status apart from that of the scanner with a non-scanned output MIP-PG pattern. Method 1.
  • Page 91 2BC/D Maintenance Description item No. U091 Checking shading Description Performs scanning under the same conditions as before and after shading is performed, displaying the original scanning values at nine points of the contact glass. Purpose To check the change in original scanning values before and after shading. The results may be used to decide the causes for fixing unevenness (uneven density) of the gray area of an image: either due to optical (shading or CCD) or other problems.
  • Page 92 2BC/D Maintenance Description item No. U092 Adjusting the scanner automatically Description Makes auto scanner adjustments in the order below using the specified original. • Adjusting the scanner center line (U067) • Adjusting the scanner magnification in the main direction(U065) • Adjusting the scanner leading edge registration (U066) •...
  • Page 93 2BC/D Maintenance Description item No. U093 Setting the exposure density gradient Description Changes the exposure density gradient in manual density mode, depending on respective image modes (text, text and photo, photo). Purpose To set how the image density is altered by a change of one step in the manual density adjustment. Also used to make copy image darker or lighter.
  • Page 94 2BC/D Maintenance Description item No. U099 Checking and setting the original size detection sensor 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 malfunctions frequently due to incident light or the like.
  • Page 95 2BC/D Maintenance Description item No. U100 Checking the operation of main high voltage Description Changes the surface potential by changing the grid control voltage. Also performs main charging. Purpose To set the surface potential or check main charging. Start Press the start key. The screen for selecting an item is displayed. Display Description DSP DATA...
  • Page 96 2BC/D Maintenance Description item No. U101 Setting the other high voltages Description Sets the developing bias control voltage, the transfer control voltage, and the separation control voltage or checks the output of these voltages. Purpose To check or change the developing bias, the transfer voltage, and the separation voltage. Method Press the start key.
  • Page 97 2BC/D-1 Maintenance Description item No. U102 Setting the cleaning interval for the main charger 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 98 2BC/D-1 Maintenance Description item No. U111 Checking/clearing the drum drive time Description Displays the drum drive time for checking, clearing or changing a figure, which is used as a reference when correcting the high voltage based on time. Purpose To check the drum status. Also used to clear the drive time after replacing the drum. Method Press the start key.
  • Page 99 2BC/D-1 Maintenance Description item No. U126 Setting effective potential correction Description Sets the correction interval and the correction target value for effective potential correction. Purpose To run when replacing the drum or when a density failure which may be caused mainly by the drum occurs. Method Press the start key.
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  • Page 101 2BC/D-1 Maintenance Description item No. U130 Initial setting for the developer Description Automatically sets the toner sensor control voltage and toner feed start level for the installed developer. Purpose To set the initial settings for the developer when installing the machine or replacing the developer. Method 1.
  • Page 102 2BC/D-1 Maintenance Description item No. U132 Replenishing toner forcibly 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 103 2BC/D-1 Maintenance Description item No. U137 Checking the toner level detection sensor Description Displays the detection status of the toner level detection sensor and toner hopper lockup detection sensor. Purpose To check the toner level in the toner hopper. Method 1.
  • Page 104 2BC/D Maintenance Description item No. U156 Changing the toner control level Description Changes the toner control reference voltage set in maintenance item U130 or the toner control level or the toner empty level to be determined by the difference from the toner control level. The setting for this maintenance item does not need to be changed.
  • Page 105 2BC/D Maintenance Description item No. U157 Checking/clearing the developing drive time Description Displays the developing drive time for checking, clearing or changing a figure, which is used as a reference when correcting the toner control. It is automatically cleared when U130 is executed. Purpose To check the developing drive time after replacing the developing unit.
  • Page 106 2BC/D-1 Maintenance Description item No. U161 Setting the fixing control temperature Description Changes the fixing control temperature. Purpose Normally no change is necessary. However, can be used to prevent curling or creasing of paper, or solve a fixing problem on thick paper. Method Press the start key.
  • Page 107 2BC/D-1 Maintenance Description item No. U194 Setting the fixing web drive Description Sets the interval (number of copies) for turning on the fixing web solenoid. Purpose To be executed when the fixing web roller becomes extremely soiled. Method Press the start key. The screen for adjustment is displayed. Setting 1.
  • Page 108 2BC/D Maintenance Description item No. U200 Turning all LEDs on 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 109 2BC/D Maintenance Description item No. U203 Operating DF separately Description Simulates the original conveying operation separately in the DF. Purpose To check the DF. Method 1. Press the start key. The screen for selecting an item is displayed. 2. Place an original in the DF if running this simulation with paper. 3.
  • Page 110 2BC/D Maintenance Description item No. U206 Setting the presence or absence of the coin vender Description Sets the presence or absence of the optional coin vender. Also sets the details for coin vender operation, such as mode and unit price. This is an optional device which is currently supported only by Japanese specification machines, so no setting is necessary.
  • Page 111 2BC/D-1 Maintenance Description item No. U209 Setting date and time Description Sets the real time clock. Purpose To set the date and time after initializing data. Method 1. Press the start key. The screen for executing is displayed. The current setting for the year is displayed. 2.
  • Page 112 2BC/D-1 Maintenance Description item No. U235 2. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed. Completion Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is displayed.
  • Page 113 2BC/D Maintenance Description item No. U241 Checking the operation of the switches of the finisher Description Displays the status of each switch of the optional document finisher. Purpose Used to check the operation of each switch of the optional document finisher. Method 1.
  • Page 114 2BC/D-1 Maintenance Description item No. U243 Checking the operation of the DF motors, solenoids and clutch Description Turns the motors, solenoids or clutch in the DF on. Purpose To check the operation of the DF motors, solenoids and clutch . Method 1.
  • Page 115 2BC/D-1 Maintenance Description item No. U244 Method for the volume switch (VR) 1. Move the original insertion guides to check the detection status of the original size width switch. The detected original width is displayed as a numerical value with the decimals omitted. Numerical Original width to be detected value...
  • Page 116 2BC/D Maintenance Description item No. U245 Checking messages 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 117 2BC/D-1 Maintenance Description item No. U248 Setting the paper eject devices Descrioption Adjusts the amount of slack in the paper for finisher punch mode, the booklet stapling position, and the center folding position for the copier with an optional finisher installed. Also, displays and clears the punch-hole scrap count.
  • Page 118 2BC/D-1 Maintenance Description item No. U248 Setting the amount of slack in the paper at reversed paper ejection 1. Select PUNCH TIMING(TURN) on the screen for selecting an item. 2. Select the paper size to be set. 3. Change the setting using the cursor up/down keys. Display Description Setting range...
  • Page 119 2BC/D-1 Maintenance Description item No. U248 Left stapling Right stapling Adjustment method Proper Decrease the preset value. Upper side is longer. Lower side is longer. Increase the preset value. Lower side is longer. Upper side is longer. 4. Press the start key. The value is set. 5.
  • Page 120 2BC/D-1 Maintenance Description item No. U248 Supplement If the items of SADDLE ADJUST are changed, those of SADDLE ADJUST 2 will also be changed. SADDLE ADJUST 2, therefore, need not be changed in principle. Only if any problem occurs at the center folding position depending on the number of sheets of a batch, adjust SADDLE ADJUST 2.
  • Page 121 2BC/D-1 Maintenance Description item No. U250 Setting the maintenance cycle Description Displays and changes the maintenance cycle. Purpose To check and change the maintenance cycle. Method Press the start key. The current setting is displayed. Setting 1. Change the setting using the numeric keys. Description Setting range Initial setting...
  • Page 122 2BC/D Maintenance Description item No. U252 Setting the destination Description Switches the operations and screens of the machine according to the destination. Purpose To be executed after replacing the backup RAM on the main PCB or initializing the backup RAM by running maintenance item U020, in order to return the setting to the value before replacement or initialization.
  • Page 123 2BC/D Maintenance Description item No. U254 Turning auto start function on/off Description Selects if the auto start function is turned on. Purpose Normally no change is necessary. If incorrect operation occurs, turn the function off: this may solve the problem. Method Press the start key.
  • Page 124 2BC/D Maintenance Description item No. U256 Turning auto preheat/energy saver function on/off Description Selects if the auto preheat/energy saver function is turned on. When set to ON, the time to enter preheat/ energy saver mode can be changed in copy management mode. Purpose According to user request, to set the preheat time to save energy, or enable copying promptly without the recovery time from preheat mode.
  • Page 125 2BC/D Maintenance Description item No. U258 Switching copy operation at toner empty detection 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 126 2BC/D-1 Maintenance Description item No. U260 Changing the copy count timing Description Changes the copy count timing for the total counter and other counters. Purpose To be set according to user (copy service provider) request. If a paper jam occurs frequently in the finisher when the number of copies is counted at the time of paper ejection, copies are provided without copy counts.
  • Page 127 2BC/D-1 Maintenance Description item No. U264 Setting the display order of the date Description Selects year, month and day as the order of that appears on lists, etc. Purpose Set according to the user preference. Method Press the start key. The screen for selecting an item is displayed. Setting 1.
  • Page 128 2BC/D-1 Maintenance Description item No. U266 Setting the number of days after which to automatically delete documents Descrioption Sets the number of days to save documents on the HDD before automatically deleting. Purpose To change the number of days to retain data that is saved within the auto-delete area of the HDD before automatically deleting.
  • Page 129 2BC/D-1 Maintenance Description item No. U329 Default setting Auto rotation copy/Sort copy Description Sets the initial mode for the Auto rotation copy/Sort copy selected when auto clear is triggered or the reset key is pressed. Purpose To be set as required according to the user. Method 1.
  • Page 130 2BC/D-1 Maintenance Description item No. U332 Setting the size conversion factor Description Sets the coefficient of nonstandard sizes in relation to the A4/11" × 8 " size. The coefficient set here is used to convert the black ratio in relation to the A4/11" × 8 "...
  • Page 131 2BC/D Maintenance Description item No. U341 Specific paper feed location setting for printing function 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 132 2BC/D Maintenance Description item No. U344 Setting preheat/energy saver mode Description Changes the control for preheat/energy saver mode. Purpose According to user request, selects which has priority, the recovery time from preheat or energy saver. Method Press the start key. The screen for selecting an item is displayed. Setting 1.
  • Page 133 2BC/D Maintenance Description item No. U347 Setting auto drawer size detection Description Turns the auto drawer size detection function on/off. Purpose To be used when turning the auto paper size (in the drawers) detection off and making copies onto only the specified size paper.
  • Page 134 2BC/D Maintenance Description item No. U355 Setting the output mode for face up output Descrioption Specifies whether to output from the first page so that the pages after the second page are stacked on the first page or to output from the last page so that the first page is stacked at the top when outputting face up in printing.
  • Page 135 2BC/D-1 Maintenance Description item No. U504 Initializing the scanner NIC 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 136 2BC/D-1 Maintenance Description item No. U903 Checking/clearing the paper jam counts Description Displays or clears the jam counts by jam locations. Purpose To check the paper jam status. Also to clear the jam counts after replacing consumable parts. Implementation Press the start key. The screen for selecting an item is displayed. Display Description COUNT...
  • Page 137 2BC/D Maintenance Description item No. U905 Checking/clearing counts by optional devices Description Displays or clears the counts of the DF or optional finisher. Purpose To check the use of the DF and optional finisher. Also to clear the counts after replacing consumable parts. Method 1.
  • Page 138 2BC/D Maintenance Description item No. U907 Checking and resetting the count value on each ejection location 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 maintenance parts.
  • Page 139 2BC/D Maintenance Description item No. U910 Clearing the black ratio data Description Clears the accumulated black ratio data for A4 sheets. Purpose To clear data as required at times such as during maintenance service. Method 1. Press the start key. 2.
  • Page 140 2BC/D-1 Maintenance Description item No. U922 Checking/clearing the solenoid count value 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 BRA SOL COUNT...
  • Page 141 2BC/D-1 Maintenance Description item No. U989 HDD Scandisk Description Restores data in the hard disk by scanning the disk. Purpose If power is turned off while accessing to the hard disk is performed, the control information in the hard disk drive may be damaged.
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  • Page 143 2BC/D-1 Maintenance Description item No. U991 Checking/clearing the scanner count Description Displays or clears 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 TOTAL SCAN COUNT...

  • Page 144: Paper Misfeed Detection

    2BC/D 1-5-1 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 the drawer, front cover or right cover.
  • Page 145 2BC/D • Misfeed in paper conveying section Jam code 23 Jam code 30 Jam code 32 • Misfeed in fixing section Jam code 40 Jam code 50 Jam code 52 Jam code 53 • Misfeed in duplex section Jam code 51 Jam code 60 Jam code 61 Jam code 62...
  • Page 146 2BC/D (2) Paper misfeed detection conditions OFSW OSBSW DFTSW BYPPSW BYPPFCL PFSW1 FCL1-H FDESW FSSW FCL1-L PFSW2 DUPREVCL FCL2-H DUPJSW FCL2-L DUPFSSW FCL3 DUPESW PFSW3 DUPPCSW1 DUPPCSW2 PFCL1 DUPFWDCL FCL4 PFSW4 PFCL2 PFSW5 PFCL4 DFCL PFSW6 DPCSW1 DPCSW2 FCL5 PFCL3 Figure 1-5-1 1-5-3...
  • Page 147 2BC/D Section Jam code Description Conditions Paper feed No paper feed from Paper feed switch 3 (PFSW3) does not turn on within 660 ms section drawer 1 of paper feed clutch 1 (PFCL1) turning on; the clutch is then successively turned off for 1 s and turned back on once, but the switch again fails to turn on within 660 ms.
  • Page 148 2BC/D Section Jam code Description Conditions Paper feed Multiple sheets in copier Paper feed switch 2 (PFSW2) does not turn off within the section vertical conveying sec- time required to convey the length of the used paper size tion 1 plus 1470 ms of turning on.
  • Page 149 2BC/D Section Jam code Description Conditions Feedshift Misfeed in feedshift sec- The feedshift switch (FSSW) does not turn on within 1190 section tion ms of the eject switch (ESW) turning on. Misfeed in feedshift de- The feedshift switch (FSSW) does not turn off within 1190 tention section ms of the eject switch (ESW) turning off.
  • Page 150 2BC/D-1 Section Jam code Description Conditions An original jam in the In the secondary original feed in the 1 sided original mode, original feed section 2 even if the specified number of pulses of the original conveying motor (OCM) passes after the DF timing switch (DFTSW) turns on, the OFF status of the original feed switch (OFSW) or the original switchback switch (OSBSW) is not detected.
  • Page 151 2BC/D Section Jam code Description Conditions Finisher Jam between the finisher There is no reply. and copier Paper jam during paper See the finisher service manual. insertion to the finisher Paper jam during paper See the finisher service manual. insertion to the finisher and paper ejection to the sub tray Paper jam at the siding...
  • Page 152 2BC/D (3) Paper misfeeds • Copier 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 paper feed switch ing or eject section 1/2/3/4/5/6, the registration is indicated as soon...
  • Page 153 2BC/D Problem Causes/check procedures Corrective measures Check if paper feed clutch Run maintenance item U032 and select paper feed clutch 1 on A paper jam in the 1 malfunctions. the touch panel to be turned on and off. Check the status and paper feed section remedy if necessary.
  • Page 154 2BC/D Problem Causes/check procedures Corrective measures Check if paper feed clutch Run maintenance item U032 and select paper feed clutch 4 on A paper jam in the 4 malfunctions. the touch panel to be turned on and off. Check the status and paper feed section remedy if necessary.
  • Page 155 2BC/D Problem Causes/check procedures Corrective measures Broken paper feed switch Check visually and replace paper feed switch 1 if its actuator is A paper jam in the 1 actuator. broken. paper feed section Defective paper feed Run maintenance item U031 and turn paper feed switch 1 on is indicated during switch 1.
  • Page 156 2BC/D Problem Causes/check procedures Corrective measures Electrical problem with the Check (see page 1-5-45). A paper jam in the feed clutch 3/4/5. paper feed section is indicated during copying (jam in copier vertical paper conveying section). Jam code 18/19/20/ 21/22 (10) Defective registration Run maintenance item U031 and turn the registration switch on...
  • Page 157 2BC/D Problem Causes/check procedures Corrective measures (11) Check if the feed pulleys, Repair or replace if necessary. A paper jam in the feed roller and vertical pa- paper feed section per conveying rollers A, is indicated during B,C,D and E are de- copying (multiple formed.
  • Page 158 2BC/D Problem Causes/check procedures Corrective measures (15) Check if the upper and Check visually and remedy if necessary. A paper jam in the lower feed rollers contact fixing section is indi- each other. cated during copy- Check if the fixing unit Repair or replace if necessary.
  • Page 159 2BC/D Problem Causes/check procedures Corrective measures (18) Electrical problem with the Check (see page 1-5-47). A paper jam in the feedshift solenoid. feedshift section is Deformed lower feedshift Repair or replace if necessary. indicated during guide. copying (jam in feedshift section). Check if the left and right Check visually and remedy if necessary.
  • Page 160 2BC/D Problem Causes/check procedures Corrective measures (22) Broken duplex paper con- Check visually and replace the duplex paper conveying switch 2 A paper jam in the veying switch 2 actuator. if its actuator is broken. duplex section is Defective duplex paper Run maintenance item U031 and turn duplex paper conveying indicated during conveying switch 2.
  • Page 161 2BC/D • DF Problem Causes/check procedures Corrective measures A piece of paper torn from Remove any found. An original jams an original is caught when the main around the original feed switch is turned on. switch. Defective original feed Run maintenance item U244 and turn the original feed switch on switch.
  • Page 162 2BC/D Problem Causes/check procedures Corrective measures Defective original Run maintenance item U244 and turn the original switchback An original jams in switchback switch. switch on and off manually. Replace the original switchback the DF during copy- switch if indication of the corresponding switch on the touch ing (a jam in the panel is not displayed in reverse.
  • Page 163 2BD/C 1-5-2 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 displayed as a code consisting of "C" followed by a number between 0040 and 7810, indicating the nature of the problem. A message is also displayed requesting the user to call for service.
  • Page 164 2BC/D (2) Self diagnostic codes Remarks Code Contents Causes Check procedures/corrective measures C0040 Network scanner PCB* problem Defective network Replace the network scanner PCB and • Correct communication data is not scanner PCB. check for correct operation. obtained from network scanner PCB. C0100 Backup memory read/write problem Defective backup...
  • Page 165 2BC/D Remarks Code Contents Causes Check procedures/corrective measures C0420 Side deck* communication problem Poor contact in Check the connection of connectors CN13 • An error code from the side deck is the connector ter- on the main PCB and CN3 on the side detected eight times in succession.
  • Page 166 2BC/D-1 Remarks Code Contents Causes Check procedures/corrective measures C0640 Hard disk drive problem Poor contact of Check the connection of connectors CN2 • The hard disk drive cannot be ac- the hard disk drive on the main PCB and hard disk drive, and cessed.
  • Page 167 2BC/D Remarks Code Contents Causes Check procedures/corrective measures C1100 Deck right lift motor problem Broken gears or Replace the deck right lift motor. [Drawer 3] couplings of the • When the drawer 3 is inserted, the deck right lift mo- Deck lift limit switch 1 does not turn tor.
  • Page 168 2BC/D Remarks Code Contents Causes Check procedures/corrective measures C1140 Side deck* lift motor (going up) Poor contact in Reinsert the connector. Also check for con- problem the upper limit de- tinuity within the connector cable. If none, • When the side deck’s right cover is tection switch remedy or replace the cable.
  • Page 169 2BC/D Remarks Code Contents Causes Check procedures/corrective measures C2550 Paper conveying motor problem Poor contact in Reinsert the connector. Also check for con- • LOCK ALM signal remains high for 1 the paper convey- tinuity within the connector cable. If none, s, 1 s after the paper conveying motor ing motor connec- remedy or replace the cable.
  • Page 170 2BC/D Remarks Code Contents Causes Check procedures/corrective measures C3100 • The home position is not correct Poor contact of Check the connection of connector CN10 when the power is turned on or copy- the connector ter- on the engine PCB and the continuity ing the document placed on the con- minals.
  • Page 171 2BC/D-1 Remarks Code Contents Causes Check procedures/corrective measures C4100 BD initialization (A) problem Defective laser Replace the LSU. When power is turned on, only laser A scanner unit. is output and MIP detects a BD error for Defective main Replace the main PCB and check for cor- 600 ms.
  • Page 172 2BC/D-1 Remarks Code Contents Causes Check procedures/corrective measures C5500 Drum surface potential sensor prob- Poor contact in Reinsert the connector. Also check for con- lem 1 the drum surface tinuity within the connector cable. If none, Drum surface potential sensor output potential sensor repair or replace the cable.
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  • Page 174 2BC/D Remarks Code Contents Causes Check procedures/corrective measures C5610 Drum surface potential problem 2 Defective high Replace the high voltage transformer PCB • Minimizing the grid output cannot set voltage trans- and check for correct operation. the potential. former PCB. C6000 Broken fixing heater wire Poor contact in...
  • Page 175 2BC/D Remarks Code Contents Causes Check procedures/corrective measures C6400 Zero-crossing signal problem Poor contact in Check the connection of connectors CN17 • The main PCB does not detect the the connector ter- on the main PCB and CN2 on the power zero-crossing signal (Z CROSS SIG) minals.
  • Page 176 2BC/D 1-5-3 Image formation problems (1) No image appears (2) No image appears (3) Image is too light. (4) Background is visible. (entirely white). (entirely black). See page 1-5-33 See page 1-5-33 See page 1-5-34 See page 1-5-34 (5) A white line appears (8) One side of the copy (7) A black line appears (6) A black line appears...
  • Page 177 2BC/D-1 (23)There is a regular error (24) When the duplex unit is (21) There is a regular error (22) There is a regular error between the centers of between the leading between the trailing used, the center of the edges of the original the original and copy edges of the original original image and that...
  • Page 178 2BC/D-1 (1) No image appears Causes (entirely white). 1. No transfer charging. Causes Check procedures/corrective measures 1. No transfer charging. A. Broken transfer charger wire. Replace the transfer charger wire. B. The connector terminals of the high voltage Reinsert the connector. Also check for continuity within the transformer PCB make poor contact.
  • Page 179 2BC/D (3) Image is too Causes light. 1. Insufficient toner. 2. Deteriorated developer. 3. Dirty or deteriorated drum. Causes Check procedures/corrective measures 1. Insufficient toner. If the display shows the message requesting toner replenishment, replace the cartridge. 2. Deteriorated developer. Check the number of copies made with the current developer.
  • Page 180 2BC/D (6) A black line appears Causes longitudinally. 1. Dirty contact glass. 2. Dirty or flawed drum. 3. Deformed or worn cleaning blade. 4. Dirty scanner mirror. Causes Check procedures/corrective measures 1. Dirty contact glass. Clean the contact glass. 2. Dirty or flawed drum. Clean the drum or, if it is flawed, replace it (see page 1-6-42).
  • Page 181 2BC/D (9) Black dots appear Causes on the image. 1. Dirty or flawed drum. 2. Dirty contact glass. 3. Deformed or worn cleaning blade. Causes Check procedures/corrective measures 1. Dirty or flawed drum. Clean the drum or, if it is flawed, replace it (see page 1-6-42). 2.
  • Page 182 2BC/D (12) The leading edge of Causes the image is sporadi- 1. Registration clutch, bypass paper feed clutch cally misaligned with or paper feed clutch 1/2/3/4 installed or the original. operating incorrectly. Causes Check procedures/corrective measures 1. Registration clutch, bypass paper feed clutch Check the installation position and operation of the registration or paper feed clutch 1/2/3/4 installed clutch, bypass paper feed clutch and paper feed clutch 1/2/3/4.
  • Page 183 2BC/D-1 Causes (15) Image is partly miss- 1. Paper damp. ing. 2. Paper creased. 3. Drum condensation. 4. Flawed drum. Causes Check procedures/corrective measures 1. Paper damp. Check the paper storage conditions. 2. Paper creased. Replace the paper. 3. Drum condensation. Clean the drum.
  • Page 184 2BC/D (19) Image is not Causes square. 1. Laser scanner unit positioned incorrectly. 2. Image scanning unit positioned incorrectly. Causes Check procedures/corrective measures 1. Laser scanner unit positioned incorrectly. Adjust the installation position of the laser scanner unit (see page 1-6-32). 2.
  • Page 185 2BC/D-1 (22) There is a regular Causes error between the 1. Misadjusted DF original scanning start leading edges of position. the original and copy image when the DF is used. Causes Check procedures/corrective measures 1. Misadjusted DF original scanning start Readjust the DF original scanning start position (see page 1-6-70).
  • Page 186 2BC/D-1 (25) Toner scatters at Causes the leading edge of 1. Registration cleaner brush or lower the image. registration cleaner soiled with paper powder. Causes Check procedures/corrective measures 1. Registration cleaner brush or lower registra- Vacuum clean the paper powder from the registration cleaner brush tion cleaner soiled with paper powder.
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  • Page 188 2BC/D 1-5-4 Electrical problems • Copier Problem Causes Check procedures/corrective measures No electricity at the power Measure the input voltage. The machine does outlet. not operate when The power cord is not Check the contact between the power plug and the outlet. the main switch is plugged in properly.
  • Page 189 2BC/D Problem Causes Check procedures/corrective measures Poor contact in the paper Reinsert the connector. Also check for continuity within the con- The paper convey- conveying motor connec- nector cable. If none, remedy or replace the cable. ing motor does not tor terminals.
  • Page 190 2BC/D Problem Causes Check procedures/corrective measures Broken cooling fan motor Check for continuity across the coil. If none, replace the cooling The cooling fan mo- coil. fan motor. tor does not oper- Poor contact in the cooling Reinsert the connector. Also check for continuity within the con- ate.
  • Page 191 2BC/D Problem Causes Check procedures/corrective measures (17) Broken deck right lift motor Check for continuity across the coil. If none, replace the deck The deck right lift coil. right lift motor. motor does not op- Poor contact in the deck Reinsert the connector.
  • Page 192 2BC/D Problem Causes Check procedures/corrective measures (24) Broken feed low clutch 1 Check for continuity across the coil. If none, replace feed low Feed low clutch 1 coil. clutch 1. does not operate. Poor contact in feed low Reinsert the connector. Also check for continuity within the con- clutch 1 connector termi- nector cable.
  • Page 193 2BC/D Problem Causes Check procedures/corrective measures (31) Broken paper feed clutch 1 Check for continuity across the coil. If none, replace paper feed Paper feed clutch 1 coil. clutch 1. does not operate. Poor contact in paper feed Reinsert the connector. Also check for continuity within the con- clutch 1 connector termi- nector cable.
  • Page 194 2BC/D Problem Causes Check procedures/corrective measures (37) Broken duplex reversing Check for continuity across the coil. If none, replace the duplex The duplex revers- clutch coil. reversing clutch. ing clutch does not Poor contact in the duplex Reinsert the connector. Also check for continuity within the con- operate.
  • Page 195 2BC/D Problem Causes Check procedures/corrective measures (43) Broken fixing web solenoid Check for continuity across the coil. If none, replace the fixing The fixing web sole- coil. web solenoid. noid does not oper- Poor contact in the fixing Reinsert the connector. Also check for continuity within the con- ate.
  • Page 196 2BC/D Problem Causes Check procedures/corrective measures (50) Broken transfer charger See page 1-5-33. Transfer charging is wire. not performed Poor contact in the high (C5110). voltage transformer PCB connector terminals. Defective engine PCB. Defective high voltage transformer PCB. (51) Broken separation charger Replace the separation charger wire (see page 1-6-48).
  • Page 197 2BC/D Problem Causes Check procedures/corrective measures (56) Poor contact in paper Reinsert the connector. Also check for continuity within the con- The message re- switch 1 connector termi- nector cable. If none, remedy or replace the cable. questing paper to be nals.
  • Page 198 2BC/D Problem Causes Check procedures/corrective measures (62) Poor contact in the lower Reinsert the connector. Also check for continuity within the con- The size of paper in paper length switch con- nector cable. If none, remedy or replace the cable. drawer 2 is not dis- nector terminals.
  • Page 199 2BC/D Problem Causes Check procedures/corrective measures (64) A piece of paper torn from Check and remove if any. A paper jam in the copy paper is caught paper feed, paper around paper feed switch conveying or fixing 1/2/3/4/5/6, registration section is indicated switch, feedshift switch or on the touch panel eject switch.
  • Page 200 2BC/D • DF Problem Causes Check procedures/corrective measures Defective original feed mo- Check for continuity across the coil. If none, replace the original The original feed tor coil. feed motor. motor does not The connector terminals of Reinsert the connector. Also check for continuity within the con- operate.
  • Page 201 2BC/D Problem Causes Check procedures/corrective measures Defective original feed Check for continuity across the coil. If none, replace the original The original feed clutch coil. feed clutch. clutch does not The connector terminals of Reinsert the connector. Also check for continuity within the con- operate.
  • Page 202 2BC/D 1-5-5 Mechanical problems • Copier Problem Causes/check procedures Corrective measures Check if the surfaces of the following rollers Clean with isopropyl alcohol. No primary paper feed. or pulleys are dirty with paper powder: for- warding pulleys, upper/lower paper feed pul- leys, upper/lower feed rollers, vertical paper conveying rollers A/B/C/D/E, feed pulleys, bypass forwarding roller and bypass upper/...
  • Page 203 2BC/D Problem Causes/check procedures Corrective measures Check if the press roller is extremely dirty or Clean or replace the press roller. Paper jams. deformed. Check if the contact between the heat roller Repair if any springs are off the separation and its separation claws is correct.
  • Page 204 2BC/D • DF Problem Causes/check procedures Corrective measures The surfaces of the DF forwarding pulleys, Check and clean them with isopropyl alco- No primary original DF original feed pulley or DF separation pul- hol if they are dirty. feed. ley are dirty with paper powder. Check if the DF original feed pulley or the If so, replace (see page 1-6-67).

  • Page 205: Precautions For Assembly And Disassembly

    2BC/D 1-6-1 Precautions for assembly and disassembly (1) Precautions • Be sure to turn the main switch off and disconnect the power plug before starting disassembly. • When handling PCBs, do not touch connectors with bare hands or damage the board. •...

  • Page 206: Running A Maintenance Item

    2BC/D (2) Running 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 or numeric keys. selected. Press the start key. The selected maintenance item is run. Press the stop/clear key.

  • Page 207: Paper Feed Section

    2BC/D 1-6-2 Paper feed section (1) Detaching and refitting the forwarding, upper paper feed and lower paper feed pulleys Follow the procedure below to clean or replace the forwarding, upper and lower paper feed pulleys. (1-1) Detaching and refitting the pulleys of drawers 1, 2, and 3 Procedure •...
  • Page 208 2BC/D 4. Remove the screw holding the interlock cover Interlock cover and then the cover (only when detaching and refitting the primary paper feed unit of drawer Figure 1-6-4 5. Remove the screw and then remove the support plate and the confluence guide (only when detaching and refitting the primary paper feed unit of drawer 1 or 2).
  • Page 209 2BC/D • Removing the forwarding pulley 8. Raise the forwarding pulley retainer in the direction of the arrow, and then remove it from the primary paper feed unit. Forwarding pulley retainer Figure 1-6-7 9. Remove the stop ring and pull the forwarding Forwarding pulley shaft pulley shaft in the direction of the arrow, and Stop ring...
  • Page 210 2BC/D 11. Remove the two stop rings and disconnect the connecter of the paper feed clutch. 12. Pull the upper paper feed shaft in the Upper paper feed pulley Connector direction of the arrow, and then remove the upper paper feed pulley. * When fitting the upper paper feed pulley, put the end face with a silver ring to the front side of the machine.

  • Page 211: Detaching And Refitting The Pulley Of Drawer 4

    2BC/D (1-2) Detaching and refitting the pulley of drawer 4 Procedure Deck conveying unit • Removing the forwarding pulley 1. Pull out drawers 3 and 4 and then pull out the deck conveying unit. Figure 1-6-12 2. Remove the pin, raise the forwarding pulley retainer in the direction of the arrow, and then remove it from the deck conveying unit.
  • Page 212 2BC/D • Removing the upper paper feed pulley 4. Remove the four screws holding the deck Deck conveying unit conveying unit and then the unit from the machine. Figure 1-6-15 5. Remove the stop ring and then the gear. Stop ring Gear Figure 1-6-16 6.
  • Page 213 2BC/D • Removing the lower paper feed pulley 8. Remove the two springs and tilt the lower Springs paper feed pulley unit down in the direction of the arrow. * Remove the springs from the side of the guide plate. Lower paper feed pulley unit Figure 1-6-18 9.

  • Page 214: Detaching And Refitting The Bypass Forwarding, Upper And Lower Paper Feed Pulleys

    2BC/D (2) Detaching and refitting the bypass forwarding, upper and lower paper feed pulleys Follow the procedure below to clean or replace the bypass forwarding, upper and lower paper feed pulleys. Procedure • Removing the bypass paper feed unit 1. Remove the developing duct cover and Connector middle right cover (see page 1-6-3).
  • Page 215 2BC/D • Removing the bypass upper paper feed pulley Stop ring 7. Remove the spring, stop ring and bushing Connector Spring from the bypass forwarding pulley retainer. 8. Disconnect the connector of the bypass Bushing paper feed clutch and then remove the wire from the edging and the wire saddle.
  • Page 216 2BC/D • Removing the bypass lower paper feed pulley 12. Remove the two screws from the bypass Bypass paper feed unit paper feed unit and then remove the bypass lower paper feed pulley unit. Screws Figure 1-6-26 13. Remove the two stop rings and pull the joint Bypass lower paper shaft in the direction of the arrow, and then feed pulley unit...

  • Page 217: Detaching And Refitting The Registration Cleaner Brush

    2BC/D (3) Detaching and refitting the registration cleaner brush Follow the procedure below to clean or replace the registration cleaner brush. Procedure 1. Remove the developing unit (see page 1-6- Registration cleaner brush 44). 2. Remove the two screws and then remove the registration cleaner brush.

  • Page 218: Detaching And Refitting The Ozone Filter

    2BC/D (5) Detaching and refitting the ozone filter Follow the procedure below to replace the ozone filter. Procedure 1. Remove the screw holding the conveying duct cover and then the cover. 2. Remove the two screws holding the middle rear C cover and then the cover. Middle rear C cover Conveying duct cover Figure 1-6-30...

  • Page 219: Adjustment After Roller And Clutch Replacement

    2BC/D-1 (6) Adjustment after roller and clutch replacement Perform the following adjustment after refitting rollers and clutches. (6-1) Adjusting the leading edge registration of image printing Make the following adjustment if there is a regular error between the leading edges of the copy image and original. U066 U071 U034...

  • Page 220: Adjusting The Leading Edge Registration For Memory Image Printing

    2BC/D-1 (6-2) Adjusting the leading edge registration for memory image printing Make the following adjustment if there is a regular error between the leading edge of the copy image and the leading edge of the original during memory copying. U053 U034 U065 U066...

  • Page 221: Adjusting The Center Line Of Image Printing

    2BC/D-1 (6-3) Adjusting the center line of image printing Make the following adjustment if there is a regular error between the center lines of the copy image and original when paper is fed from the drawer. U067 U072 U034 (P. 1-6-37) (P.

  • Page 222: Adjusting The Margins For Printing

    2BC/D-1 (6-4) Adjusting the margins for printing Make the following adjustment if the margins are not correct. U403 U404 U402 (P. 1-6-38) (P. 1-6-72) Caution Check the copy image after the adjustment. If the margins are still incorrect, perform the above adjustments in maintenance mode.

  • Page 223: Adjusting The Amount Of Slack In The Paper At The Registration Roller

    2BC/D-1 (6-5) Adjusting the amount of slack in the paper at the registration roller Make the following adjustment if the leading edge of the copy image is missing or varies randomly, or if the copy paper is Z-folded. Procedure Start Enter maintenance mode.

  • Page 224: Adjusting The Amount Of Slack In The Paper At The Vertical Conveying

    2BC/D-1 (6-6) Adjusting the amount of slack in the paper at the vertical conveying Make the following adjustment if the leading edge of the copy image is missing or varies randomly, or if the copy paper is Z-folded. Procedure Original Copy Copy Start...

  • Page 225: Optical Section

    2BC/D 1-6-3 Optical section (1) Detaching and refitting the exposure lamp Follow the procedure below to replace the exposure lamp. Procedure 1. Open the DF. 2. Remove the two screws holding the upper right cover and then the cover. Upper right cover Figure 1-6-38 3.

  • Page 226: Detaching And Refitting The Scanner Wires

    2BC/D (2) Detaching and refitting the scanner wires Follow the procedure below when the scanner wires are broken or to be replaced. Caution After replacing the scanner wire, make a test copy and check the copy image. If the image is incorrect, perform the adjustments (see pages 1-6-31 to 38).
  • Page 227 2BC/D 5. Remove the two screws holding the slit glass and then the glass. Slit glass Figure 1-6-42 6. Open the front cover and pull out the image Operation unit lower inner cover formation unit. 7. Remove four screws holding the operation unit lower inner cover and then the cover.
  • Page 228 2BC/D 9. Remove the four screws holding the mirror 1 upper frame and then the frame. 10. Remove the two screws holding each of the front and rear wire retainers and then the retainers from the mirror 1 lower frame. 11.

  • Page 229: Refitting The Scanner Wires

    2BC/D (2-2) Refitting the scanner wires Caution When fitting the scanner wires, be sure to use those specified below. Machine front: 2AC12170 Machine rear: 2AC12420 (black) Refitting requires the following tool: Frame securing tool (P/N: 2AC68230) Procedure • At the machine rear 1.
  • Page 230 2BC/D 17. Loosen the two screws securing the mirror 2 frame. 18. Insert the mirror 1 lower frame into the scanner unit and seat it on the positioning holes. 19. Insert the two frame securing tools into the positioning holes in the front and rear of the Frame securing tool scanner unit and determine the positions of the mirror 1 lower frame and mirror 2 frame.

  • Page 231: Detaching And Refitting The Laser Scanner Unit

    2BC/D (3) Detaching and refitting the laser scanner unit Follow the procedure below to replace the laser scanner unit. Caution After replacing the laser scanner unit, make a test copy and check the copy image. If the image is incorrect, proceed to “(6) Adjusting scanner image lateral squareness (reference)”.
  • Page 232 2BC/D 6. Remove the wire saddle located at the side of the scanner drive PCB from the scanner unit. Wire saddle Figure 1-6-53 7. Remove the three screws holding the DF connector mount and then the mount. DF connector mount Figure 1-6-54 8.
  • Page 233 2BC/D 9. Remove the two screws holding the LSU adjuster mount and then the mount. 10. Remove the three screws and disconnect the Laser scanner unit three connectors, and then the laser scanner unit. Connectors 11. Replace the laser scanner unit and refit all the removed parts.

  • Page 234: Detaching And Refitting The Isu (Reference)

    2BC/D (4) Detaching and refitting the ISU (reference) Follow the procedure below to replace the ISU. Caution After replacing the ISU, make a test copy and check the copy image. If the image is incorrect, perform the adjustments (see pages 1-6-31 to 38). ISU cover ISU installation requires the following tools: Two positioning pins (P/N 1856812)

  • Page 235: Adjusting The Longitudinal Squareness (Reference)

    2BC/D (5) Adjusting the longitudinal squareness (reference) Perform the following adjustment if the copy image is longitudinally skewed (longitudinal squareness is 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 236: Adjusting Scanner Image Lateral Squareness (Reference)

    2BC/D (6) Adjusting scanner image lateral squareness (reference) Perform the following adjustment if the copy image is laterally skewed (lateral squareness not obtained). Caution Before making the following adjustment, open the front cover and pull out the image formation unit, and remove the operation unit lower inner cover.

  • Page 237: Adjusting The Position Of The Isu

    2BC/D (6-2) Adjusting the position of the ISU 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. Procedure Start Copy Copy Correct image example 1 example 2 Place the original on the contact glass.

  • Page 238: Adjusting Magnification Of The Scanner In The Main Scanning Direction

    2BC/D (7) Adjusting magnification of the scanner in the main scanning direction Perform the following adjustment if the magnification in the main scanning direction is not correct. U065 U065 U053 U070 (auxiliary scanning (main scanning (P. 1-4-20) (P. 1-6-68) direction) (P. 1-6-35) direction) Caution Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode.

  • Page 239: Adjusting Magnification Of The Scanner In The Auxiliary Scanning Direction

    2BC/D (8) Adjusting magnification of the scanner in the auxiliary scanning direction Perform the following adjustment if the magnification in the auxiliary scanning direction is not correct. U065 U065 U053 U070 (main scanning (auxiliary scanning (P. 1-4-20) (P. 1-6-68) direction) (P. 1-6-34) direction) Caution Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode.

  • Page 240: Adjusting The Scanner Leading Edge Registration

    2BC/D (9) Adjusting the scanner leading edge registration Perform the following adjustment if there is regular error between the leading edges of the copy image and original. U034 U071 U066 (P. 1-6-15) (P. 1-6-70) Caution Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode. Procedure Scanner leading edge registration Start...

  • Page 241: Adjusting The Scanner Center Line

    2BC/D (10) Adjusting the scanner center line Perform the following adjustment if there is a regular error between the center lines of the copy image and original. U034 U072 U067 (P. 1-6-17) (P. 1-6-69) Caution Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode. Procedure Scanner center line Start...

  • Page 242: Adjusting The Margins For Scanning An Original On The Contact Glass

    2BC/D-1 (11) Adjusting the margins for scanning an original on the contact glass Perform the following adjustment if the margins are not correct. U402 U404 U403 (P. 1-6-18) (P. 1-6-72) Caution Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode. Procedure Start Enter maintenance mode.

  • Page 243: Main Charging Section

    2BC/D 1-6-4 Main charging section (1) Detaching and refitting the charger wire and main charger grid Follow the procedure below when the charger wire or main charger grid is broken or to be replaced. Precautions • Use the specified tungsten wire for the charger wire. •...
  • Page 244 2BC/D 6. Remove the charger retainer pin and the charger spring, then remove the charger wire. 7. Wind the new tungsten wire at 4 and 6 turns around one end of the charger spring and trim the end of the wire. * The length of the twists and the cut wire must be less than 2 mm.

  • Page 245: Detaching And Refitting The Grid Wire Cleaning Pad And Main Charger Wire Cleaning Pad

    2BC/D (2) Detaching and refitting the grid wire cleaning pad and main charger wire cleaning pad Follow the procedure below to replace the grid wire cleaning pad and main charger wire cleaning pad. Procedure 1. Remove the main charger grid (see page 1-6- 39).

  • Page 246: Drum Section

    2BC/D 1-6-5 Drum section (1) Detaching and refitting the drum Follow the procedure below to replace the drum. Cautions • Avoid direct sunlight or strong light when detaching and refitting the drum. • Hold the drum at the ends and never touch the drum surface. Procedure 1.
  • Page 247 2BC/D 5. Remove the drum front and rear retainers from the drum. Replace the drum. * When installing the drum, orient correctly with Drum rear retainer the thinner end of the drum flange shaft at the machine front and the thicker end at the machine rear.

  • Page 248: Developing Section

    2BC/D 1-6-6 Developing section (1) Detaching and refitting the developing unit Follow the procedure below to check, clean or replace the developing unit. Image formation left cover Procedure 1. Open the front cover. 2. Remove the screw holding the image formation left cover and then the cover.
  • Page 249 2BC/D-1 5. Disconnect the two connectors. 6. Raise the shutter a little and slide it toward Connector Sub toner hopper the front side of the machine. 7. Turn the sub toner hopper to the right of the machine. Connector Shutter Figure 1-6-81 8.

  • Page 250: Detaching And Refitting The Developing Unit Upper Seal

    2BC/D-1 (2) Detaching and refitting the developing unit upper seal Follow the procedure below to clean or replace the developing unit upper seal. Procedure 1. Remove the developing unit (see page 1-6- 44). 2. Remove the two screws holding the developing unit upper seal and then the seal.

  • Page 251: Adjusting The Position Of The Doctor Blade (Reference)

    2BC/D (4) Adjusting the position of the doctor blade (reference) Perform the following adjustment if carrier or background appears on the copy image. Procedure 1. Remove the developing unit (see page 1-6- 44). 2. Remove the two screws holding the developing unit upper seal and then the seal (see page 1-6-46).

  • Page 252: Transfer And Separation Section

    2BC/D-1 1-6-7 Transfer and separation section (1) Detaching and refitting the charger wires and cleaning pads Follow the procedure below when the charger wires and cleaning pads is broken or to be replaced. Precautions • Carry out replacement after running maintenance item U923 (Checking/clearing the transfer charger cleaning counter) to clear the counter.
  • Page 253 2BC/D-1 3. Remove the transfer charger front and rear lids. 4. Remove the separation guide. 5. Replace the transfer charger cleaning pad and separation charger cleaning pad. 6. Remove the charger wire retainer pins, charger springs and then the charger wires. Separation guide Transfer charger Transfer...
  • Page 254 2BC/D 1-6-8 Cleaning section (1) Detaching and refitting the drum separation claw and cleaning lower seal Follow the procedure below to replace the drum separation claw and cleaning lower seal. Procedure 1. Remove the drum (see page 1-6-42). 2. Remove the four screws and disconnect the connector of the cleaning earth wire, and then Cleaning unit remove the cleaning unit.
  • Page 255 2BC/D 5. Remove the two screws holding the cleaning lower seal and then the seal. Cleaning lower seal * When removing the cleaning lower seal, take care not to lose the M3 retainer located on the housing side. 6. Replace the drum separation claws and cleaning lower seal and refit all the removed parts.
  • Page 256 2BC/D (2) Detaching and refitting the cleaning blade Follow the procedure below to replace the cleaning blade. Procedure 1. Remove the cleaning unit (see page 1-6-50). 2. Remove the two screws holding the cleaning cover and then the cover. Cleaning cover Figure 1-6-94 3.
  • Page 257 2BC/D (4) Detaching and refitting the cleaning brush, front and rear cleaning seal and bushing brush Follow the procedure below to replace the cleaning brush, front and rear cleaning seal and bushing brush. Procedure 1. Remove the cleaning unit (see page 1-6-50). 2.
  • Page 258 2BC/D 7. Replace the cleaning brush, front and rear cleaning seal and bushing sponge. Refit all the removed parts. * Attach the front and rear cleaning seals within the standard value range shown in the illustration. 0 mm 0.5 mm 0.5 mm 0 mm 0 mm...
  • Page 259 2BC/D 1-6-9 Fixing section (1) Detaching and refitting the fixing unit Follow the procedure below to check or replace the fixing unit. Procedure 1. Open the front cover, tilt the paper conveying unit release lever down, and pull out the Fixing unit paper conveying unit.
  • Page 260 2BC/D 3. Remove the screw on the front of fixing unit. Screw Figure 1-6-103 4. Disconnect the two connectors on the rear of Connectors fixing unit and remove the screw holding the heater retainer and then the retainer. Screw Heater retainer Figure 1-6-104 5.
  • Page 261 2BC/D (3) Detaching and refitting the heat roller Follow the procedure below to replace the heat roller. Procedure 1. Remove the one screw holding each on the front and rear of fixing unit, and then open the fixing unit. Fixing unit Screw Screw Figure 1-6-106...
  • Page 262 2BC/D 4. Remove the circlip, bearing and bushing from Circlip the front of the heat roller and then remove the circlip, gear, bearing and bushing from the Bearing rear. 5. Replace the heat roller and all the removed parts. Gear Bushing Bearing Heat roller...
  • Page 263 2BC/D (4) Detaching and refitting the press roller Follow the procedure below to replace the press roller. Procedure 1. Remove the heat roller (see page 1-6-57). 2. Remove the screw holding the guide plate and then the plate. Guide plate Figure 1-6-109 3.
  • Page 264 2BC/D (5) Detaching and refitting the lower cleaning roller Follow the procedure below to replace the lower cleaning roller. Procedure 1. Remove the press roller (see page 1-6-59). 2. Remove the lower cleaning roller from the fixing unit. 3. Remove the bushings on the front and rear end of the lower cleaning roller.
  • Page 265 2BC/D (6) Detaching and refitting the fixing unit thermistor Follow the procedure below to check or replace the fixing unit thermistor. Procedure 1. Remove the fixing unit (see page 1-6-55). 2. Remove the two screws holding the fixing upper cover and then the cover. Fixing upper cover Figure 1-6-113 3.
  • Page 266 2BC/D (7) Detaching and refitting the fixing web roller Follow the procedure below to replace the fixing web roller. Procedure 1. Remove the fixing unit (see page 1-6-55). 2. Remove the two screws holding the fixing Fixing web roller unit upper cover and then the cover (see page 1- 6-61).
  • Page 267 2BC/D (8) Detaching and refitting the heat roller separation claw Follow the procedure below to replace the heat roller separation claw. Procedure 1. Open the front cover, tilt the paper conveying unit release lever down, and pull out the Heat roller paper conveying unit.
  • Page 268 2BC/D 1-6-10 Duplex section (1) Cleaning the duplex switchback rollers Follow the procedure below to clean the duplex switchback rollers. Procedure 1. Open the front cover and pull out the duplex unit. 2. Remove the four screws holding the duplex unit and then the unit from the machine.
  • Page 269 2BC/D (2) Adjusting the position of the duplex eject switching solenoid Follow the procedure below after replacing the duplex eject switching solenoid or if paper jams frequently in the duplex section. Procedure 1. Open the front cover and pull out the duplex unit.
  • Page 270 2BC/D (3) Setting the switchback drive Follow the procedure below if paper jams or the leading edge of paper is folded in the duplex section frequently during duplex copying. Procedure Start Enter maintenance mode. Enter “050” using the numeric keys. Press the start key.
  • Page 271 2BC/D-1 1-6-11 DF section (1) Detaching and refitting the DF forwarding pulley and DF feed pulley Follow the procedure below to clean or replace the DF forwarding pulley or DF feed pulley. Procedure 1. Open the DF original reversing cover. 2.
  • Page 272 2BC/D-1 (2) Detaching and refitting the DF separation pulley Follow the procedure below to clean or replace the DF separation pulley. Procedure 1. Open the DF original reversing cover. Screws 2. Remove the DF front and rear covers. 3. Remove the two screws holding the upper original feed cover and then the cover.
  • Page 273 2BC/D-1 5. Remove the two screws holding the solenoid bracket and then the bracket. Screw 6. Remove the screw and then remove the feed Feed guide pin guide pin. Solenoid bracket Screws Figure 1-6-124-3 7. Remove the E-ring and then the original feed clutch.
  • Page 274 2BC/D-1 9. Open the registration guide and remove the guide. 10. Remove the two screws holding the upper Registration guide feed guide plate and then the plate. Screw Screw Upper original feed guide plate Figure 1-6-124-5 11. Remove the two screws holding the original feed lift and then the lift.
  • Page 275 2BC/D-1 13. Remove the separation shaft from the separation pulley arms. 14. Remove the stopper and torque limitter from the separation shaft and then remove the DF separation pulley. 15. Clean or replace the DF separation pulley. 16. Refit all the removed parts. Torque limitter DF separation pulley...
  • Page 276 2BC/D-1 ( 3 ) Adjusting the DF magnification Adjust magnification in the auxiliary scanning direction if magnification is incorrect when the DF is used. U065 U065 U053 (main scanning (auxiliary scanning U070 (P. 1-4-20) direction) (P.1-6-34) direction) (P.1-6-35) Caution Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode. Procedure Main scanning direction...
  • Page 277 2BC/D-1 (4) Adjusting the DF original center line Perform the following adjustment if there is a regular error between the centers of the original and the copy image when the DF is used. U034 U067 U072 (P. 1-6-17) (P. 1-6-36) Caution Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode.
  • Page 278 2BC/D-1 ( 5 ) Adjusting the scanning start position when the DF is used Perform the following adjustment if there is a regular error between the leading or trailing edges of the original and the copy image. U034 U066 U071 (P.
  • Page 279 2BC/D-1 ( 5-2 ) Adjusting the DF trailing edge registration Procedure Start Enter maintenance mode. Original Copy Copy Enter “071” using the numeric keys. example 1 example 2 Figure 1-6-128 Press the start key. Select “TRAIL EDGE ADJ”. Press the interrupt key. Press the start key.
  • Page 280 2BC/D-1 ( 6 ) Adjusting the margins for scanning the original from the DF Perform the following adjustment if margins are not correct. U402 U403 U404 (P. 1-6-18) (P. 1-6-38) Caution Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode. Procedure Start Enter maintenance mode.

  • Page 281: Upgrading The Firmware On The Main Pcb

    2BC/D 1-7-1 Upgrading the firmware on the main PCB 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. (For formatting, insert a Compact Flash and select a drive.) For a desktop computer, connect a Compact Flash card reader/writer to it.
  • Page 282 2BC/D 1-7-2 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. • High voltage transformer PCB: VR101, VR102, VR201, VR301, VR302, VR401, VR402, VR403 • Inverter PCB: VR1 1-7-2...

  • Page 283: Drawers 1 And 2 Paper Feed

    2BC/D 2-1-1 Paper feed section The paper feed system of this copier includes drawers 1 and 2 that hold 500 sheets of paper each, drawer 3 that holds 1,000 sheets, drawer 4 that holds 1,500 sheets, and the bypass table. The paper feed section consists of the primary paper feed and secondary paper feed subsections.

  • Page 284: Detecting The Paper Level

    2BC/D (1-1) Detecting the paper level The mechanism of paper level detection is same for drawers 1 and 2, so only drawer 1 is explained here. The drawer operating plate for making paper in the drawer come into contact with the forwarding pulley is activated by raising the lift operating plate.
  • Page 285 2BC/D Figure 2-1-4 Paper feed section (2) 1 Lower registration roller 2 Upper registration roller 3 Front registration guide 4 Upper registration guide 5 Registration switch (RSW) 6 Lower feed roller 7 Upper feed roller 8 Upper right feed guide 9 Paper feed switch 1 (PFSW1) 0 Upper left feed guide ! Lower right feed guide...
  • Page 286 2BC/D EPCB CN18-A6 PFSW1 CN3-B2 FCL1-H CN18-A1 FCL1-L CN18-A4 FCL2-L CN20-4 FCL2-H CN18-A8 CN18-B1 PFSW2 CN20-7 CN18-B3 FCL3 CN20-10 PFSW3 CN7-11 PFCL1 CN7-9 Drawer 1 LILSW1 CN7-6 PSW1 CN7-14 PWSW-U PLSW-U CN7-1,2,3 CN18-B5 FCL4 CN20-13 PFSW4 CN7-27 PFCL2 CN7-25 Drawer 2 LILSW2 CN7-22 PSW2...
  • Page 287 2BC/D PFSW4 PFSW3 PFSW2 PFSW1 50 ms 163 ms PFCL2 58 ms 50 ms FCL4 58 ms 128 ms FCL3 128 ms FCL2-H 56 ms 70 ms FCL1-H 10 ms 58 ms FCL1-L 86 ms 166 ms 380 ms Drawer 2, paper size: A4 Timing chart 2-1-1 Drawer 2 paper feed a When the start key is pressed, the paper feed motor (PFM) turns on and thereby machine drive starts.

  • Page 288: Drawers 3 And 4 Paper Feed

    2BC/D (2) Drawers 3 and 4 paper feed Drawer 3 located in the right of the deck holds 1,000 sheets of paper and drawer 4 located in the left of the deck holds 1,500 sheets of paper. Figure 2-1-6 Drawers 3 and 4 (deck) 1 Right feed pulley * Deck left paper conveying roller 2 Paper feed switch 6 (PFSW6)
  • Page 289 2BC/D (2-1) Drawer 3 paper feed Drawer 3 consists of the paper lifting mechanism with a lift for lifting paper in the drawer and the paper feed mechanism with a forwarding pulley for pulling out paper from the drawer, an upper paper feed pulley, and so on. EPCB CN18-A6 PFSW1...

  • Page 290: Drawer 3 Paper Feed

    2BC/D PFSW6 PFSW5 PFSW4 PFSW3 PFSW2 PFSW1 50 ms 163 ms PFCL3 58 ms 50 ms FCL5 58 ms 128 ms FCL4 58 ms 128 ms FCL3 128 ms 70 ms FCL2-H 56 ms FCL1-H 58 ms 10 ms FCL1-L 166 ms 86 ms 380 ms...
  • Page 291 2BC/D (2-2) Drawer 4 paper feed Drawer 4 consists of the paper lifting mechanism with a deck lift and the paper feed mechanism with a forwarding pulley for pulling out paper from the drawer, an upper paper feed pulley, and so on. Also a paper conveying section for conveying paper horizontally is provided.

  • Page 292: Drawer 4 Paper Feed

    2BC/D DPCSW2 DPCSW1 PFSW5 PFSW4 PFSW3 PFSW2 PFSW1 50 ms 190 ms PFCL4 125 ms 50 ms DFCL 58 ms 163 ms FCL5 58 ms 128 ms FCL4 58 ms 128 ms FCL3 128 ms FCL2-H 56 ms 70 ms FCL1-H 58 ms 10 ms...

  • Page 293: Raising And Lowering The Lift

    2BC/D (2-3) Raising and lowering the lift The mechanism of paper lifting with the deck lift is same for drawers 3 and 4, so only drawer 3 is explained here. The deck lift is suspended with wire at four points, and the deck right lift motor (DLM-R) drives the lift by winding up the wire.

  • Page 294: Detecting The Paper Level

    2BC/D (2-4) Detecting the paper level * The mechanism of paper level detection is same for drawers 3 and 4, so only drawer 3 is explained here. When the drawer is pulled out from the copier and then pushed in again or when paper on the lift is used for copying, the deck right lift motor (DLM-R) drives until the leading edge of the paper on the lift turns deck lift limit switch 1 (DLILSW1) on.

  • Page 295: Paper Feed From The Bypass Table

    2BC/D (3) Paper feed from the bypass table The bypass table holds up to 100 sheets of paper at one time. the bypass solenoid (BYPSOL) turns on, unlocking the bypass stopper and lowering the bypass forwarding pulley until it comes into contact with the paper. This conveys paper placed on the bypass table to the bypass upper and lower paper feed pulleys, is primary paper fed by the rotation of the bypass forwarding pulley and is conveyed to the bypass upper and lower paper feed pulleys.
  • Page 296 2BC/D PFSW1 300 ms 100 ms BYPPFCL 100 ms 90 ms BYPSOL 10 ms 58 ms FCL1-L 86 ms 166 ms 380 ms Bypass, paper size: A4 Timing chart 2-1-4 Paper feed from the bypass a When the start key is pressed, the paper feed motor (PFM) turns on, thereby starting paper feed. b 100 ms after the start key is pressed, the bypass solenoid (BYPSOL) turns on.

  • Page 297: Main Charging Section

    2BC/D 2-1-2 Main charging section The main charging section consists of the main charger unit, drum, drum surface potential sensor (DSPS), and so on. The drum is electrically charged to form an image. The drum surface potential sensor (DSPS) reads the drum surface potential and outputs data for surface potential correction to the engine PCB (EPCB).
  • Page 298 2BC/D DSPS CN14-9 MCCM FWD REM CN4-5 MCCM REV REM CN4-6 MCCM HVTPCB G CONT CN12-10 CN1-10 Main charger MC ALM CN12-11 CN1-11 wire MC REM CN12-12 CN1-12 Grid Drum DSPS EPCB Figure 2-1-17 Main charging section block diagram 500 ms 250 ms 100 ms Potential...

  • Page 299: Optical Section

    2BC/D 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 2-1-18 Optical section 1 Mirror 1 frame ! Scanner motor (SM) 2 Mirror 2 frame @ Scanner home position switch 3 Mirror 1 (SHPSW)

  • Page 300: Original Scanning

    2BC/D (1) Original scanning The original image is illuminated by the exposure lamp (EL) and scanned by the CCD PCB (CCDPCB) in the image scanning unit via the three mirrors, the reflected light being converted to an electrical signal. The mirror 1 and 2 frame 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 301: Image Printing

    2BC/D Start key 410 P Fwd. rotation 414 P Rev. rotation 9921 P 110 P SHPSW FVSYNC signal Manual copy density control, copy paper: A3/11" × 17", magnification ratio 100% Timing chart 2-1-6 Scanner operation a When the start key is pressed, the scanner motor (SM) reverses for 410 pulses and then rotates forward. b 414 pulses after the scanner motor rotates forward, the FVSYNC signal turns on for 9921 pulses for scanning.
  • Page 302 2BC/D Drum Figure 2-1-21 Laser scanner unit (2) 1 Laser diodes: Generate the laser beams that form the latent image on the drum. 2 Collimator lenses: Collimate the diffused laser beams emitted from the laser diodes into cylindrical beams. 3 Beam splitter: Refracts the laser beam emitted from one of the laser diodes so that it becomes parallel to the other laser beam, and sends those two beams to lens 1.

  • Page 303: Developing Section

    2BC/D 2-1-4 Developing section The developing section consists of the developing unit and the toner hopper unit. The developing unit consists of the developing roller where a magnetic brush is formed, the doctor blade and the developing spirals that agitate the developer. The toner hopper unit consists of the toner conveying spiral, toner draw spiral, and hopper agitation spring, turns on/off the toner feed motor according to the toner sensor output voltage, and supplies toner in the toner hopper to the developing unit.

  • Page 304: Formation Of Magnetic Brush

    2BC/D (1) Formation of magnetic brush The developing magnet consists of a magnet roller with five poles and a sleeve roller. Rotation of the sleeve roller around the magnet roller entrains developer, which in turn forms a magnetic brush at pole N1 on the magnet roller that is used for developing.
  • Page 305 2BC/D CN4-18 Toner hopper unit CN4-1, 2 TDLS CN4-3, 4 EPCB Drum CN4-8 TONER CONTROL CN4-10 Developing HVTPCB bias DB CONT CN1-8 CN12-8 DB REM CN1-9 CN12-9 Figure 2-1-26 Developing section block diagram 150 ms 600 ms DB REM Timing chart 2-1-7 Operation of developing bias a 150 ms after the start key is pressed, the DB REM signal turns on to apply the developing bias to the developing roller.

  • Page 306: Toner Density Control

    2BC/D (2) Toner density control To maintain the toner density of the developer constant, the toner sensor (TNS) and the toner level sensor (TLDS) detect the toner density and toner level in the toner hopper respectively. Based on the detection result, toner is fed by turning the toner feed motor (TFM) and toner agitation motor (TAM) on and off.

  • Page 307: Controlling The Toner Feed Motor And Toner Agitation Motor

    2BC/D (2-2) Controlling the toner feed motor and toner agitation motor The toner feed motor (TFM) and toner agitation motor (TAM) are turned on and off based on the toner sensor output voltage as follows: • Under normal conditions When the toner sensor output voltage is larger than the toner control level Toner feed motor (TFM): Turned on for 0.5 s and turned off for 1.5 s Toner agitation motor (TAM): Turned on for 1 s and turned off for 1 s When the toner sensor output voltage is larger than the toner control level plus 20...

  • Page 308: Toner Control Level Absolute Humidity Correction

    2BC/D (2-4) Toner control level absolute humidity correction The results of toner density detection vary with the temperature and humidity due to their influence on the toner sensor output characteristic. Therefore, the toner control level is corrected based on the absolute humidity level detected by the humidity sensor PCB (HUMPCB).

  • Page 309: Transfer/Separation And Conveying Sections

    2BC/D 2-1-5 Transfer/separation and conveying sections The transfer/separation section consists of the transfer charger unit and the drum separation claw. The transfer charger unit consists of the transfer charger for transferring the toner image on the drum onto paper and the separation charger for separating the paper from the drum.
  • Page 310 2BC/D 166 ms 86 ms 344 ms 155 ms TC REM 220 ms SC REM Timing chart 2-1-8 Transfer/separation operation a When the start key is pressed, the paper feed motor (PFM) turns on, which starts paper feed. b 166 ms after the image ready signal turns on, the registration clutch (RCL) turns on to start secondary paper feed. c 155 ms and 220 ms after the registration clutch (RCL) turns on, the TC REM signal and the SC REM signal turn on respectively and the transfer charging and the separation charging start respectively.

  • Page 311: Cleaning Section

    2BC/D 2-1-6 Cleaning section The copier employs a blade cleaning method with a cleaning brush. The cleaning section consists of the cleaning blade and the cleaning brush which remove residual toner from the drum surface after transfer, the cleaning brush scraper that removes toner from the cleaning brush, and the cleaning spiral that carries the residual toner to the waste toner box.

  • Page 312: Charge Erasing Section

    2BC/D 2-1-7 Charge erasing section The main component of the charge erasing section is the cleaning lamp (CL). The cleaning lamp (CL) consists of 45 LEDs (red) and removes residual charge from the drum surface. Cleaning lamp Figure 2-1-33 Charge erasing section EPCB CL REM CN4-11...

  • Page 313: Fixing Section

    2BC/D 2-1-8 Fixing section The fixing section consists of the parts shown in the figure. When the paper reaches the fixing section after the transfer process, it passes through the gap between the press roller and the heat roller, which is heated by fixing heaters M and S (FH-M and FH-S), where pressure is applied by the pressure springs so that toner on the paper is melted and fused onto the paper.
  • Page 314 2BC/D CN12-1 AC power source Phase FH-1 Noise control CN12-2 LIVE filter circuit FH-2 CN9-2 CN9-1 PSPCB EPCB MPCB FH-M REM CN2-8 CN2-5 Z CROSS SIG FH-S REM CN17-7 CN2-7 CN2-6 CN2-9 Figure 2-1-36 Fixing section block diagram FH-M REM FH-S REM PCM REM 250 ms...

  • Page 315: Feedshift And Eject Sections

    2BC/D 2-1-9 Feedshift and eject sections The feedshift and eject sections switch the paper path based on the 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 316: Duplex Section

    2BC/D 2-1-10 Duplex section As paper is conveyed from the feedshift section into the duplex section, the 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 317 2BC/D DUPFSSW DUPPRSOL DUPJSW DUPREVCL DUPFWDCL DUPESSOL DUPPCSW2 DUPESW DUPPCSW1 EPCB Figure 2-1-40 Duplex section block diagram 2-1-35...
  • Page 318 2BC/D DUPJSW DUPFSSW 500 ms 90 ms FSSOL 30 ms DUPPRSOL 730 ms DUPESSOL DUPFWDCL 100 ms 120 ms DUPREVCL 50 ms Timing chart 2-1-11 Duplex copying operation a When copying onto the reverse side, 500 ms after the registration clutch (RCL) turns on, the feedshift solenoid (FSSOL) turns on, operating the conveying shift guide to switch the paper path to the duplex unit.

  • Page 319: Original Feed Section

    2BC/D 2-1-11 DF (1) Original feed section The original feed section consists of the parts shown in Figure. An original placed on the original table is conveyed to the original switchback section or the original conveying section. Figure 2-1-41 Original feed section 1 Original table 9 DF registration roller 2 DF forwarding pulleys...

  • Page 320: Original Feed Timing

    2BC/D (1-1) Original feed timing 10 ms 150 ms OFSOL A 150 ms 200 ms OFSOL R OFCL Fwd. rotation Rev. rotation 298 P* 20 ms OFSW OSBSW DFTSW *Burst of OFM pulses Timing chart 2-1-12 Original feed (in simple-sided original mode) a The OFSOL A signal goes high for 10 ms and then turns off for 200 ms.

  • Page 321: Original Switchback Section

    2BC/D (2) Original switchback section The original switchback section consists of the parts shown in Figure. The original from the original feed section or original conveying section is reversed and conveyed to the original conveying section. Figure 2-1-43 Original switchback section 1 Switchback pulley 2 Switchback roller 3 Switchback feedshift guide...

  • Page 322: Operation Of Original Switchback

    2BC/D (2-1) Operation of original switchback In the double-sided original mode, the switchback feedshift solenoid (SBFSSOL) turns on, changing the position of the switchback feedshift guide. This switches the path of the original to the original switchback section to where the original is fed.

  • Page 323: Original Conveying Section

    2BC/D (3) Original conveying section The original conveying section consists of the parts shown in Figure. Synchronized with the copier scanning operation, the original is conveyed across the slit glass and ejected when scanning is complete. In the double-sided original mode, the eject feedshift solenoid (EFSSOL) turns on, moving the eject feedshift guide to switch the path of the original.

  • Page 324: Original Switchback/Conveying Timing

    2BC/D (3-1) Original switchback/conveying timing Scanning speed 100 ms Fwd. rotation 298 P Rev. rotation 30 ms 20 ms OFSW SBFSSOL 135 P SBPSOL A 78 P SBPSOL R OSBSW Scanning speed EFSSOL DFTSW *1 Burst of OFM pulses *2 Burst of OCM pulses Timing chart 2-1-13 Reversing the first face of the original a During primary original feed, when the original feed switch (OFSW) turns on, the switchback feedshift solenoid (SBFSSOL) also turns on, changing the position of the switchback feedshift guide.
  • Page 325 2BC/D Scanning request signal: On Scanning speed Fwd. rotation Rev. rotation 327 P 100 ms OFSW 100 ms 135 P SBFSSOL SBPSOL 30 ms 362 P 78 P SBPSOL 2252 P + 30 ms OSBSW Scanning speed 30 ms EFSSOL DFTSW *1 Burst of OFM pulses *2 Burst of OCM pulses...

  • Page 326: Electrical Parts Layout

    2BC/D 2-2-1 Electrical parts layout (1) PCBs Machine front Machine inside Machine rear Figure 2-2-1 PCBs 1. Main PCB (MPCB) ........Controls the other PCBs and electrical components. 2. Engine PCB (EPCB) ........Controls electrical components and optional devices. 3. Power source PCB (PSPCB) ......Generates 24 V DC, +12 V DC, 3.4 V DC and 5 V DC; controls fixing heaters M and S.

  • Page 327: Switches And Sensors

    2BC/D (2) Switches and sensors Machine front Machine inside Machine rear Figure 2-2-2 Switches and sensors 1. Main switch (MSW) ........Turns the AC power on and off. 2. Safety switch 1 (SSW1) ....... Breaks the safety circuit when the front cover is opened. 3.
  • Page 328 2BC/D 17. Face down eject switch (FDESW) ....Detects a paper misfeed in the face down eject section. 18. Lift limit switch 1 (LILSW1) ......Detects the drawer 1 lift reaching the upper limit. 19. Lift limit switch 2 (LILSW2) ......Detects the drawer 2 lift reaching the upper limit. 20.

  • Page 329: Motors

    2BC/D (3) Motors Machine front Machine inside Machine rear Figure 2-2-3 Motors 1. Image formation motor (IFM) ....... Drives image formation section. 2. Paper conveying motor (PCM) ..... Drives paper conveying section and fixing section. 3. Paper feed motor (PFM) ....... Drives paper feed section. 4.

  • Page 330: Clutches And Solenoids

    2BC/D (4) Clutches and solenoids 16 15 Machine front Machine inside Machine rear Figure 2-2-4 Clutches and Solenoids 1. Bypass paper feed clutch (BYPPFCL) ..Primary paper feed from the bypass tray. 2. Registration clutch (RCL) ......Secondary paper feed. 3.

  • Page 331: Other Electrical Components

    2BC/D (5) Other electrical components Machine front Machine inside Machine rear Figure 2-2-5 Other electrical components 1. Exposure lamp (EL) ........Exposes originals. 2. Cleaning lamp (CL) ........Removes residual charge from the drum surface. 3. Pre-cleaning lamp 1 (PCL1) ......4.

  • Page 332: Df Pcbs

    2BC/D (6) DF PCBs Machine front Machine inside Machine rear Figure 2-2-6 DF PCBs 1. DF driver PCB (DFDPCB) ......Controls electrical components of the DF. 2. Original set LED PCB (OSLEDPCB) ... Indicates presence of originals on the DF or an original jam. 2-2-7...

  • Page 333: Df Switches And Sensors

    2BC/D (7) DF switches and sensors Machine front Machine inside Machine rear Figure 2-2-7 DF switches and sensors 1. DF safety switch 1 (DFSSW1) ..... Breaks the safety circuit when the DF is opened; resets original misfeed detection. 2. DF safety switch 2 (DFSSW2) ..... Breaks the safety circuit when the DF original switchback cover is opened;...

  • Page 334: Df Motors

    2BC/D (8) DF motors Machine front Machine inside Machine rear Figure 2-2-8 DF motors 1. Original feed motor (OFM) ......Drives the original feed and switchback sections. 2. Original conveying motor (OCM) ....Drives the original conveying section. 2-2-9...

  • Page 335: Df Clutches And Solenoids

    2BC/D (9) DF clutches and solenoids Machine front Machine inside Machine rear Figure 2-2-9 DF clutches and solenoids 1. Original feed solenoid (OFSOL) ....Operates the paper feed lift. 2. Switchback feedshift solenoid (SBFSSOL) ..........Operates the switchback feedshift guide. 3.

  • Page 336: Power Source Pcb

    2BC/D 2-3-1 Power source PCB Power source PCB AC input Noise Noise Transformer filter filter circuit circuit Rectifier circuit Q3 Q4 Zero-cross circuit PWM control circuit IC1 FH-S Z CROSS SIG FH-M FH-S REM FH-M REM SLEEP SIG 24 V DC 24 V DC output circuit...
  • Page 337 2BC/D The power source PCB (PSPCB) is a switching regulator which converts an AC input to generate 24 V DC, 5.2 V DC, 3.3 V DC and 12 V DC. It includes the components shown in Figure 2-3-1; noise filter circuits, a rectifier circuit, a PWM control circuit, a 24 V DC output circuit, a 5.2 V DC output circuit, a 3.3 V DC output circuit, a 12 V DC output circuit, a fixing heater control circuit, an overvoltage/overcurrent detection circuit.
  • Page 338 2BC/D Figure 2-3-2 Power source PCB silk-screen diagram 2-3-3...
  • Page 339 2BC/D Connector Pin No. Signal Voltage Description LIVE Local voltage 120 V AC or 220-240 V AC Local voltage 120 V AC or 220-240 V AC Connected LIVE OUT Local voltage 120 V AC or 220-240 V AC via MSW to the AC power plug and power...
  • Page 340 2BC/D Connector Pin No. Signal Voltage Description S.G(3.4V) Ground Ground for MPCB Ground Ground for DFDPCB Connected Ground Ground for side deck* to the main Ground Ground for SDPCB PCB, DF G(5V) Ground Ground for MPCB driver PCB, Ground Ground for TAMPCB* Tandem G(5V) Ground...

  • Page 341: Main Pcb

    2BC/D 2-3-2 Main PCB PCI BUS (32 bit) NSPCB* (D0:D31) SDRAM (CN4) INT CODEC2 8M byte × 2 INT5 INT CODEC1 (A2:A23) INT4 INT MCP 8.29 MHz INT3 INT HDD (D0:D15) INT2 MACK_MMI LCD controller INT0 OPCB-L (D0:D15) Buffer (CN10,11) Compact flash slot...
  • Page 342 2BC/D CN15 CN14 CN10 CN11 CN23 CN30 CN16 CN13 CN17 CN12 Figure 2-3-4 Main PCB silk-screen diagram 2-3-7...
  • Page 343 2BC/D Connector Pin No. Signal Voltage Description CLOCK 0 V/5.2 V DC (pulse) PM rotation control clock G(5V) Ground Ground for PM control PCB (LSU) Connected START 0 V/5.2 V DC PM: On/Off to the READY 0 V/5.2 V DC PM rotation status: Stabilized/Not stabilized polygon motor...
  • Page 344 2BC/D Connector Pin No. Signal Voltage Description CN11 DIG LED 6 0 V/5.2 V DC (pulse) LED drive signal 6 DIG LED 5 0 V/5.2 V DC (pulse) LED drive signal 5 Connected DIG LED 4 0 V/5.2 V DC (pulse) LED drive signal 4 to the DIG LED 3 0 V/5.2 V DC (pulse) LED drive signal 3...
  • Page 345 2BC/D Connector Pin No. Signal Voltage Description CN14 CLP- 0 V/3.3 V DC (pulse) CCDPCB drive clock signal CLP+ 0 V/3.3 V DC (pulse) CCDPCB drive clock signal Connected 0 V/3.3 V DC (pulse) CCDPCB drive clock signal to the CCD 0 V/3.3 V DC (pulse) CCDPCB drive clock signal PCB.

  • Page 346: Engine Pcb

    2BC/D 2-3-3 Engine PCB Engine PCB Buffer IC Motors Clutches and Main PCB solenoids Switches and sensors Figure 2-3-5 Engine PCB block diagram The engine PCB (EPCB) transmits the status of each switch or sensor to the main PCB (MPCB). It also transmits drive control signals from the main PCB (MPCB) through buffer ICs to motors and clutches.
  • Page 347 2BC/D Figure 2-3-6 Engine PCB silk-screen diagram 2-3-12...
  • Page 348 2BC/D Connector Pin No. Signal Voltage Description 5.2 V DC Power supply from PSPCB G(5V) Ground Ground from PSPCB Connected G(5V) Ground Ground from PSPCB to the G(5V) Ground Ground from PSPCB power FH-M REM 0 V/5.2 V DC FH-M: On/Off source FH-S REM 0 V/5.2 V DC...
  • Page 349 2BC/D Connector Pin No. Signal Voltage Description SET SIG 0 V/5.2 V DC Duplex unit set status: Installed/Not installed DUPJSW 0 V/5.2 V DC DUPJSW: On/Off Connected DUFSSW 0 V/5.2 V DC DUFSSW: On/Off to the DUPPCSW1 0 V/5.2 V DC DUPPCSW1: On/Off duplex unit.
  • Page 350 2BC/D Connector Pin No. Signal Voltage Description 5.2 V DC Power supply for BYPPLSW BYPPLSW 0 V/5.2 V DC BYPPLSW: On/Off Connected G(5V) Ground for BYPPLSW to the G(5V) Ground for BYPTSW bypass BYPTSW 0 V/5.2 V DC BYPTSW: On/Off paper BYPPWSW DIG0 0 V/5.2 V DC...
  • Page 351 2BC/D Connector Pin No. Signal Voltage Description CN13 SSW2 24 V/0 V DC SSW2: On/Off SSW1 24 V/0 V DC SSW1: On/Off Connected 24 V DC DC power source to PRY to the PRY REM 0 V/24 V DC PRY: On/Off safety 24V SOURCE 24 V DC...
  • Page 352 2BC/D Connector Pin No. Signal Voltage Description CN17 UPLESW2 0 V/5.2 V DC Upper drawer paper level signal (2): Low/High COM(G) Ground Ground for LM-U Connected UPLESW1 0 V/5.2 V DC Upper drawer paper level signal (1): Low/High to the upper R24V 24 V DC Power supply for LM-U...
  • Page 353 2BC/D Connector Pin No. Signal Voltage Description YC20 Not used Not used Connected G(5V) Ground for PFSW1 to the paper PFSW1 0 V/5.2 V DC PFSW1: On/Off feed switch 5.2 V DC Power supply for PFSW1 1, paper G(5V) Ground for PFSW2 feed switch PFSW2 0 V/5.2 V DC...

  • Page 354: Scanner Drive Pcb

    2BC/D 2-3-4 Scanner drive PCB Scanner drive PCB SM Vref SM A SM M1 SM _A SM M2 SM B Stepping SM M3 motor SM _B SM M4 driver IC SM CLK Main PCB SM CWB SM ENABLE INPCB Driver Switches sensors Figure 2-3-7 Scanner drive PCB block diagram...
  • Page 355 2BC/D Figure 2-3-8 Scanner drive PCB silk-screen diagram 2-3-20...
  • Page 356 2BC/D Connector Pin No. Signal Voltage Description G(5V) Ground Ground for SDPCB SHPSW 0 V/5.2 V DC SHPSW: On/Off Connected EL ON REM 5.2 V DC EL: On/Off to the SM ENABLE 0 V/5.2 V DC SM drive enable signal: Enable/Not enable engine SM RET 0 V/5.2 V DC...

  • Page 357: Ccd Pcb

    2BC/D 2-3-5 CCD PCB CCD PCB Main PCB Clock Clock driver generation Emitter follower circuit Emitter CCD IC3 follower circuit Image processing Emitter circuit follower circuit Emitter follower circuit Figure 2-3-9 CCD PCB block diagram The CCD PCB (CCDPCB) receives clock signals SHIFT+, SHIFT-, CLK+, CLK-, RS+, RS-, CLP+, and CLP- from the main PCB (MPCB), and based on these signals, generates the CCD drive signal to drive CCD IC3.
  • Page 358 2BC/D Figure 2-3-10 CCD PCB silk-screen diagram Connector Pin No. Signal Voltage Description CLP- 0 V/3.3 V DC (pulse) CCDPCB drive clock signal Connected CLP+ 0 V/3.3 V DC (pulse) CCDPCB drive clock signal to the main 0 V/3.3 V DC (pulse) CCDPCB drive clock signal PCB.
  • Page 359 2BC/D 2-4-1...
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  • Page 369 2BC/D 2-4-11...
  • Page 370 2BC/D 2-4-12...
  • Page 371 2BC/D-1 2-4-13...

  • Page 372: Maintenance Parts List

    2BC/D-1 Maintenance parts list Maintenance part name Part No. Fig. No. Ref. No. Name used in service manual Name used in parts list Primary paper feed unit PARTS,ASS’Y PRIMARY PAPER FEED,SP 2BC93010 Forwarding pulley PULLEY,LEADING FEED 2BC06810 57,35 Upper paper feed pulley PULLEY,PAPER FEED 2BC06900 Lower paper feed pulley...
  • Page 373 2BC/D-1 Maintenance part name Part No. Fig. No. Ref. No. Name used in service manual Name used in parts list Duplex pressure release solenoid* SOLENOID,STOPPER 18327130 DF forwarding pulley PULLEY,LEADING FEED 3BC07010 DF feed pulley PULLEY,SEPARATION 3BC07020 DF separation pulley PULLEY,SEPARATION 3BC07020 DF registration roller...
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  • Page 375: Periodic Maintenance Procedures

    2BC/D-1 Periodic maintenance procedures Maintenance Section Method Maintenance cycle Points and cautions Page part/location Test copy and Perform at the maximum Test copy Every service test print copy size Run maintenance item U923 (Checking/clearing the transfer charger cleaning counter) to clear the count value. (Refer to page 1-4-71.) Maintenance Section...
  • Page 376 2BC/D-1 Maintenance Section Method Maintenance cycle Points and cautions Page part/location Optical section Slit glass Clean Every service Clean with alcohol and then a dry cloth. Contact glass Clean Every service Clean with alcohol and then a dry cloth. Mirror 1 Clean Every service Clean with alcohol and then...
  • Page 377 2BC/D Maintenance Section Method Maintenance cycle Points and cautions Page part/location Cleaning Cleaning unit Replace Every service 1-6-50 section Cleaning lower seal Replace Every service 1-6-50 Cleaning brush Replace Every service 1-6-53 Front cleaning seal Replace Every service 1-6-53 Rear cleaning rear seal Replace Every service 1-6-53...
  • Page 378 2BC/D-1 Maintenance Section Method Maintenance cycle Points and cautions Page part/location Duplex pressure release Check or replace Every service Replace after feeding 500,000 Feedshift and duplex sections solenoid sheets. Rollers Clean Every service Clean with alcohol or a dry cloth. Guides Clean Every service...
  • Page 379 2BC/D-1 Maintenance Section Method Maintenance cycle Points and cautions Page part/location Other Drum drive grounding Check and grease Every service Apply conductive grease plate GE-334C. Ozone filter Replace Every service • Run the following maintenance modes. Method Maintenance item contents Page U126 Setting of effective potential correction...
  • Page 380 2BC/D-1 This page is intentionally left blank. 2-4-22...

  • Page 381: Optional Devices Supplied Parts List

    2BC/D Optional devices supplied parts list Multi finisher Name used in service manual Name used in installation guide Part No. Main tray Main tray 3B804140 Finisher connecting plate Finisher connecting plate 3B803010 Stapler cartridge Stapler cartridge 3B827020 M4 × 12 binding screw M4 ×...

  • Page 382: Functions And Settings Combination Chart

    2BC/D Functions and settings combination chart : Combination is possible Function selected second ---: Combination is NOT possible Function selected first 01: Auto exposure adjustment is not available for the photo mode. The text+photo mode, the Image quality (text mode) text mode, or manual exposure adjustment will Image quality (photo mode) be selected.

  • Page 383: General Wiring Diagram

    General wiring diagram 2BC/D OPTION 100V 10-1 COM WHITE FH-M Phase control OPCB FUSE1 10-2 LIVE BLACK circuit FH-S FUSE1 120V TOUCH COM WHITE 100 to 120V 15A 125V PANEL BACK 230V 8A 250V LIGHT LIVE BLACK 220-240V COM WHITE 5V(TH) WE NEUTRAL OUT WE 25-1...
  • Page 384 Av. 16 de Septiembre #407 Col. Santa Inés, 02130 Azcapotzalco México, D.F. México TEL : (55) 383-2741 FAX : (55) 383-7804 ©2002 KYOCERA MITA CORPORATION is a trademark of Kyocera Corporation is a registered trademark of KYOCERA MITA CORPORATION Printed in U.S.A.

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