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Ricoh FT5034C Service Manual

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SERVICE MANUAL
FT5034C

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Summary of Contents for Ricoh FT5034C

  • Page 1 SERVICE MANUAL FT5034C...

  • Page 2: Table Of Contents

    CONTENTS 1. INSTALLATION............ 2. OVERVIEW............3. COPY PROCESS ..........11 4. SECTION DESCRIPTIONS ........13 5. SP MODE/DIP SW TABLE........92 6. CALL SERVICE CONDITIONS ......98 7. PREVENTIVE MAINTENANCE ......105 8. TROUBLESHOOTING..........114 9. ELECTRICAL DATA - 1 -...

  • Page 3: Installation

    1. INSTALLATION 1.1 INSTALLATION REQUIREMENTS....3 1.2 INSTALLATION PROCEDURE......4 - 2 -...

  • Page 4: Installation Requirements

    1.1 INSTALLATION REQUIREMENTS The installation location should be carefully chosen because environmental conditions greatly affect the performance of a copier. 1. Environments to Avoid • Avoid any area exposed to direct sunlight or strong light (Illumination must be less than 1500 Lux). •...
  • Page 5 1.2 INSTALLATION PROCEDURE NOTE: 1. When lifting and moving the copier, grasp the black painted stays on each side as shown. 2. When the optional sorter is installed, the above mentioned stays can not be held. Wear gloves to protect hands from the edges of the copier base plate.
  • Page 6 2. Developer Supply Place a clean sheet of paper on your work surface. 1. Raise the development lock lever and pull out the development unit. Place the unit on a clean sheet of paper. 2. Separate the toner tank from the Toner Tank development unit (2 screws).
  • Page 7 5. Perform the Drum Conditioning (This operation must be performed after Drum Conditioning developer and drum installation.) Switch 1. Open the front right cover and move the drum conditioning switch on the reverse side of the operation panel to the left. Close the front right cover and switch the power on.

  • Page 8: Overview

    2. OVERVIEW 2.1 SPECIFICATIONS ..........8 2.2 GUIDE TO COMPONENTS ........9 - 7 -...
  • Page 9 2.1 SPECIFICATIONS Items Specifications Remarks Configuration Desk top Copy Process Dry electrostatic transfer system Originals Sheet/book Original Size Maximum A3 Copy Paper Size Maximum A3, Minimum A6 Lengthwise Copy Paper Weight 52 g/m ~ 157 g/m F/L cassette: 64 ~ 90 g/m 1st &...
  • Page 10 2.2 GUIDE TO COMPONENTS 1. Operation Panel - 9 -...
  • Page 11 2. Indicator Panel - 10 -...

  • Page 12: Copy Process

    3. COPY PROCESS 3.1 COPY PROCESS DIAGRAM ......12 - 11 -...
  • Page 13 3.1 COPY PROCESS DIAGRAM Charge Corona Unit Exposure Quenching Erase Lamp Lamp Carrier Toner F TYPE Cleaning Blade Development Photoconductor Drum Roller Cleaning Brush Pre-Cleaning Corona (PCC) ID Sensor Pre-Transfer Lamp Pick-off Pawls Paper Transfer Corona Wire Separation Corona Wire 1.

  • Page 14: Section Descriptions

    4. SECTION DESCRIPTIONS 4.1 MECHANICAL COMPONENT LAYOUT ....14 4.2 DRIVE LAYOUT (INCLUDING PERIPHERALS) ......15 4.3 ELECTRICAL COMPONENT LAYOUT .....16 4.4 PAPER FEED AND REGISTRATION ....18 4.5 OPTICS...............28 4.6 AROUND THE DRUM ........44 4.7 DEVELOPMENT AND TONER SUPPLY ...50 4.8 ID SENSOR AND PTL........62 4.9 IMAGE TRANSFER, PAPER SEPARATION AND PAPER TRANSPORT........71 4.10 CLEANING ............75...

  • Page 15: Mechanical Component Layout

    4.1 MECHANICAL COMPONENT LAYOUT 1. 3rd Mirror 19. 4th Mirror 2. 2nd Mirror 20. Feed Roller (By-pass Feed) 3. 1st Mirror 21. Toner Tank 4. Exposure Lamp 22. Pick-up Roller 5. Exposure Glass 23. Pressure Lever 6. Hot Roller Stripper 24.

  • Page 16: Drive Layout (Including Peripherals)

    4.2 DRIVE LAYOUT (INCLUDING PERIPHERALS) 9 10 1. DF Feed-out Roller 17. Sorter Adapter Drive Belt 2. Feed-out Roller Drive Belt 18. Fusing Exit Roller Gear 3. Pulse Generator Sprocket/Toner 19. Fusing Drive Release Gear Supply Drive Gear 20. Transport/Fusing Drive Sprocket →...

  • Page 17: Electrical Component Layout

    4.3 ELECTRICAL COMPONENT LAYOUT 1. Scanner Motor 21. Lamp Regulator Board 2. By-pass Feed Clutch 22. Power Transformer 3. Pulse Generator Sensor 23. Main Fuse 4. 1st Cassette Paper End Sensor 24. Fusing Control Board 5. By-pass Pick-up Solenoid 25. Noise Filter 6.
  • Page 18 39. Exposure Lamp 50. 1st Cassette Paper Size Sensor 40. Thermofuse 51. By-pass Table Sensor 41. Fusing Exit Sensor 52. By-pass Paper End Sensor 42. Fusing Thermistor 53. Optics Cooling Fan 43. Main Motor 54. Drum Heater 44. Vacuum Fan 55.

  • Page 19: Paper Feed And Registration

    4.4 PAPER FEED AND REGISTRATION 4.4.1 Mechanical Parts 1. Overview In total this machine has four feed stations. They are three cassette feed stations and a by-pass feed station. The 1st and 2nd feed stations each use a size adjustable cassette, but the 3rd feed station located inside the copier uses only an A3 cassette.
  • Page 20 3. Paper End Detection and Paper Size Detection 1) Paper End Detection This machine uses a photointerrupter sensor for paper end detection. The paper end actuator, which is on the same shaft as the paper end feeler, pivots into the sensor. 2) Paper Size Detection Paper Size Sensor Paper size is detected by an array of five...
  • Page 21 4. Paper Lift Mechanism When a cassette is inserted into the copier, the Cassette Arm curved release guides on the sides of the cassette press against the rollers on the Release Guide release levers and force the release levers down. The release levers rotate the cassette arm shaft, moving the cassette arm down and out of the way.
  • Page 22 1) Registration Standard The registration standard is 0 ± 2mm. If it is 0 mm, the paper lead edge and original lead edge is the same. But due to lead edge erase, the copy image has a blank margin (3.5 ± 2.5 mm). Copy (A4) Original (A4) a: lead edge erase (3.5 ±...
  • Page 23 When paper is loaded onto the by-pass feed table, the paper end sensor is de-actuated and Start key turns green. When the Start key is pressed, the pick-up roller is lowered by the by-pass pick-up solenoid to contact the paper stack. When the paper reaches the feed roller, the pick-up roller moves up away from the paper stack.
  • Page 24 8. Electrical Control Main Control Board Signal Scan Signal CN NO. Signal Level T0 → 1st feed station Size 1 102–24B Detection: 5 V Size 2 102–22A size detection → 1st feed station No detection: 0 V Size 3 102–24A paper end Size 4 102–22B...
  • Page 25 2. By-pass Feed Table Replacement Upper By-pass Feed Guide Plate 1. Open the by-pass feed table and remove the by-pass feed table hinges from the positioning pins by pressing them inward. 2. Remove the by-pass feed table. By-pass Feed Table 3.
  • Page 26 Friction Pad Friction Eccentric 2. 1st and 2nd Feed Stations Pad Positioning Pad Holder 1) Remove the feed roller and hub (1 Mechanism snap ring). NOTE: When reinstalling the feed roller, make sure that the hub is positioned toward the rear on the shaft.
  • Page 27 Eccentric Cam 5. Mark the position of the eccentric cam Friction Pad Holder groove on the friction pad holder. 6. Remove the friction pad holder from the Holder Bracket holder bracket (1 screw and 1 eccentric cam). 7. Peel off the entrance mylar and the friction pad and stick new ones on the friction pad holder.
  • Page 28 5. Friction Pad Pressure Adjustment NOTE: This adjustment is required when multifeeds or misfeeds occur with the customer’s brand of paper. If replacement of the feed roller and the friction pad does not solve the problem, do the following adjustment. 1.

  • Page 29: Optics

    4.5 OPTICS 4.5.1 Mechanical Parts 1. Overview Exposure Lamp Reflector 2nd Mirror 4th Mirror 1st Mirror Lens 3rd Mirror Toner Shield Glass During the copy cycle, an image of the original is reflected onto the drum surface via the optics assembly as follows. Light path: Exposure Lamp →...
  • Page 30 This model uses a dc servomotor to drive the scanners. The scanner motor changes the scanner speed depending on the reproduction ratio. 3. Lens/Mirror Positioning Lens Home The lens motor (a stepping motor) changes the Lens Drive Wire Position Sensor lens and 2nd scanner position in accordance Lens Drive with the selected reproduction ratio to provide...
  • Page 31 2. Light Shading Mechanism The machine is designed so that the intensity of the light across the drum is uniform at 100% reproduction. However, the intensity of the light striking the drum tends to increase toward the edges when the reproduction ratio is decreased, as a result of the change in position of the lens.
  • Page 32 When the second scanner moves from enlargement to reduction or from reduction to enlargement, it does not move to the home position. NOTE 1) When the zoom key is pressed, the buzzer rings at reproduction ratios between 50 ~ 155% but does not ring at 156 ~ 200% and the speed of the reproduction ratio indicator is higher.
  • Page 33 4. Automatic Image Density Sensing (ADS) This copier has an ADS system for good quality copy images. Light from the exposure lamp is reflected from the original and travels to the ADS sensor on the lens base via the mirror. Sampling starts 3 millimeters from the leading edge of the original in full size mode.
  • Page 34 Manual image ADS mode Drum temperature: 30°C density mode : Development bias voltage level V: Lamp voltage –4 : ADS input voltage ~ 1.65 1.65~2.16 2.16~2.65 is the voltage of the lamp at 2.65 ~ the manual image density level 2.) 2) Function of DPS102 on the Main Board •...
  • Page 35 4.5.2 Replacement and Adjustment Left Scale 1. Exposure Glass Removal 1. Take off the left scale (2 short screws). Exposure Glass 2. Grasp the left edge of the exposure glass and lift it up slightly. Slide the other edge out from under the right glass holder. Remove the exposure glass.
  • Page 36 3. Exposure Lamp Positioning CAUTION: Be sure that the main switch is turned off before adjustment. Reflector Cover 1. Remove the exposure glass. Adjusting Screw 2. To correct the position of the filament in parallel with the sight hole, turn the Exposure adjusting screw.
  • Page 37 3. Take off the protective sheet only at both ends of the mirror. 4. Check that the rear spring plate is set properly. 5. Insert the mirror into the front side plate cut out and set it on the rear spring plate properly.
  • Page 38 10. Position the rear spring plate and hold it with your finger while inserting the mirror into the rear spring plate through the hole in the front of the scanner. NOTE: 1. Install the mirror with the reflecting surface uppermost. 2.
  • Page 39 6. Scanner Drive Wire Replacement Wire Clamp Damper Wheel Scanner Drive Wire Tension Spring 1. Turn off the main switch. 2. Remove the platen cover, the mounting studs, and the top cover. 3. Remove the left scale (2 short screws) and the exposure glass. 4.
  • Page 40 (2nd Scanner Pulley) Wire Clamp Scanner Drive Pulley Damper Wheel Bead 2) Long End 1) Short End 11. Run the scanner drive wire over the pulleys in the following order. 1) Attach the tension spring to the short end eyelet and hook the other end of spring to the cut out in the optics frame temporarily.
  • Page 41 7. Wire Clamp Positioning When the second scanner is 52 mm from the left optics frame, secure the first scanner wire clamp so that its end is positioned about 1 mm inside the home position sensor. When the copy image is enlarged, move the wire clamp to the left, and when the copy image is reduced, move the wire clamp to the right.
  • Page 42 9. Lens Motor Replacement 1. Remove the fusing unit and the left inner Wire Saddle cover (2 screws). Lens Motor Harness 2. Remove the rear cover (3 screws) and lower the main board bracket (2 screws). 3. Disconnect the lens motor connector (yellow) and free the harness from the wire saddle.
  • Page 43 12. Remove the lens motor cover from the motor assembly (1 screw). 13. Remove the lens motor from the bracket (2 screws). 14. Install the new motor on the motor bracket and reassemble the copier. 10. Light Intensity Adjustment (Exposure Lamp Voltage Adjustment) NOTE: a.
  • Page 44 11. ADS Voltage Adjustment NOTE: 1. ADS voltage adjustment is required in the following cases. 1) Exposure lamp voltage adjustment. 2) Exposure lamp replacement. 3) When using ADS mode, abnormal copy image appears. 4) Main board replacement. 1. Place more then 5 sheets of A3 paper on the exposure glass. 2.

  • Page 45: Around The Drum

    4.6 AROUND THE DRUM 4.6.1 Mechanical Parts 1. Overview The drum drive belt turns the drum pulley when the main motor is on. The rear drum flange is secured by a screw on the drum shaft and the drum spring presses the drum onto the rear drum flange.
  • Page 46 3. Erase Lamp The erase lamp illuminates the area of the charged drum surface that will not be used for the copy image. The erase lamp reduces toner consumption and the drum cleaning load. Erase Unit Charged Area Charge Corona Unit Original Lead Edge Front Endblock Cover...
  • Page 47 1. Lead Edge Erase The entire line of LEDs turns on when the main motor turns on. They stay on until the erase margin slightly overlaps the lead edge of the original image area on the drum (Lead Edge Erase Margin). This prevents the toner density sensor pattern from being developed on every copy cycle and prevents the edge of the original from appearing on the copy image.
  • Page 48 4. Erase Data • Cassette Data (0: off, 1: on) Cassette Size A4 Lengthwise B5 Lengthwise A5 Lengthwise B6 Lengthwise • Reproduction Ratio Data (0: off, 1: on) Ratio (%) 50 ~ 53 54 ~ 57 58 ~ 60 61 ~ 63 64 ~ 67 68 ~ 70 71 ~ 72...
  • Page 49 4. QL and PTL Quenching Lamp In preparation for the next copy cycle, light from the quenching lamp neutralizes any latent image charge remaining on the drum. The cold cathode lamp used for quenching is similar to the PTL; however, the light intensity of the QL is slightly less than that of the PTL.
  • Page 50 6. Drum Section Timing (For the 1st feed station, A4) Main Switch Start Key Blade Solenoid Erase Lamp QL/PTL Bias • 1st Feed MC Charge Corona Scanner ID Sensor LED Pick-off Pawl Solenoid Toner Supply Clutch Fusing Exit Sensor T1: When the Start key turns on, the QL, PTL, and Erase lamp light. T2: The charge corona turns on 0.68 second after the Start key is pressed.

  • Page 51: Development And Toner Supply

    4.7 DEVELOPMENT AND TONER SUPPLY SECTION 4.7.1 Overview Negatively charged toner is attracted to the positively charged areas of the drum, developing the latent image. The negative triboelectric charge on toner particles is generated by friction between the carrier and toner particles. Doctor Blade Permanent Magnet Paddle Roller...
  • Page 52 2. Cross Mixing This copier uses a standard cross mixing Mixing Vanes mechanism to keep the toner and developer Doctor Blade evenly mixed. It also helps agitate the Backspill Plate developer to prevent clumping and helps create the triboelectric charge. The developer on the turning development roller is split into two parts by the doctor blade.
  • Page 53 4. Bias The charge on the drum surface is dissipated in direct proportion to the intensity of the reflected light from the original. As the light intensity corresponding to the dark areas of the image is weak, the drum potential remains.
  • Page 54 c. Drum Temperature Compensation (TH2) The CPU changes the bias voltage to compensate for variations in drum sensitivity that are induced by Bias temperature changes in the drum voltage cavity. Drum The compensation is effective from 5 Base Level degrees to 50 degrees (Celsius). 5°C ~ 15°C: 14 V/1°C 15°C ~ 50°C: 6 V/1°C...
  • Page 55 CAUTION: When performing a demonstration or during PM, make sure that the main switch is not turned on and off repeatedly. 2. Bias Measurement The bias voltage can be measured by directly measuring the development roller shaft using a digital multimeter, and checking the monitor using the input check mode.
  • Page 56 (Example) non image area image area Bias for ID Sensor Pattern Drum Temp = 30°C Rest Time = Over 2 hours for image Manual ID Level Copy Cycle 5. Toner Supply Mechanism Toner Supply Toner Agitator If the toner density is detected too low through Drive Gear Toner Supply the ID sensor, the toner supply clutch is turned...
  • Page 57 DPS 101 TONER MODE DENSITY 3.5% NORMAL FREE RUN SP MODE C MODE 10.5% HIGH NORMAL NORMAL P MODE HIGHER 7. Toner End Detection The CPU uses the image density sensor to detect a toner end condition. The toner end condition is reset by opening the front cover for more than five seconds. If Vsp becomes greater than 0.8 volt twice, the CPU starts blinking the Add Toner indicator.
  • Page 58 8. Timing Main Switch Start Key Blade Solenoid Erase Lamp QL/PTL Bias • 1st Feed MC Charge Corona Scanner ID Sensor LED Pick-off Pawl Solenoid Toner Supply Clutch Fusing Exit Sensor T1: When the Start key is pressed, the bias turns on after 0.13 second. The bias voltage is constant (at the non-image area level) regardless of manual ID level.
  • Page 59 9. Bias Voltage 1. Bias Control Signals and Output Voltage (without Temperature Compensation) Output CN101-B18 CN101-B19 CN101-A18 CN101-A19 Notch Bias 4 Bias 3 Bias 2 Bias 1 3 ~ 6 2.6 ~ 2.16 ~ 2.6 1.65 ~ 2.16 ~ 1.65 2.
  • Page 60 DPS101 No 5 No 6 Toner Density Bias Voltage Normal 470 V 440 V High 500 V Higher 530 V The ID sensor bias can be changed using DIP SW101-5 and -6 to adjust the overall image density. • By SP mode (34), the bias voltage can be increased by +90 volts. 4.7.3 Replacement and Adjustment NOTE: When removing or reinstalling the development unit, apply force towards the right side to avoid scratching the drum.
  • Page 61 3. Remove the development brush cover (2 Development screws). Brush Cover 4. Set the development unit on a large sheet of paper with the unit’s inlet facing downward. 5. Turn the paddle roller knob counterclockwise. The developer will fall out onto the paper. 6.
  • Page 62 2. Toner Supply Clutch Replacement 1. Remove the rear cover (3 screws). 2. Lower the main board bracket (2 screws). 3. Remove the pulse generator assembly (1 screw). 4. Remove the toner supply clutch stopper (3 screws), the registration clutch stopper (1 screw), and the development drive support bracket (3 screws, 1 E-ring, and 1 nylon clamp).

  • Page 63: Id Sensor And Ptl

    4.8 ID SENSOR AND PTL 4.8.1 Mechanical Parts 1. Overview Drum ID Sensor ID Sensor Pre-Transfer Lamp This machine checks toner density using an ID Original sensor. After the sensor pattern is developed, its reflectivity is checked by the image density sensor.
  • Page 64 2. Toner Density Control Original Lead Edge Sensor Pattern Original Leading Edge Erase Full Erase Full Erase A5 Lengthwise Enough Toner Low Toner [Low Toner] Developed Sensor [Enough Toner] Pattern Image Image Density Sensor The main CPU checks toner density by directly detecting the image density at the beginning of the first copy cycle after the main switch is turned on, and at every 10th copy after that.
  • Page 65 [Timing chart] 3. ID Sensor Output Vsg is the ID sensor output corresponding to the drum surface erased by the erase lamp prior to the ID sensor pattern. Vsg is almost constant. Vsp is the ID sensor output corresponding to the sensor pattern image. Vsp represents the toner density of the developer because it indicates the reflected light intensity from the sensor pattern.
  • Page 66 1. Normal Toner Density (Vsg: 4 V) Vsp is about 1/8 Vsg (=0.5 V) in the normal toner density condition. 2. Low Toner Density (Vsg: 4 V) If the toner density is low, the ID sensor pattern image on the drum is dimmed. Consequently, Vsp is higher and the toner is (Normal) supplied until the next ID sensor check cycle...
  • Page 67 4. Vsp Variation The following diagram shows the variation factors which affect Vsp and their results. <Variation Factor> <Image Density> <Vsp> <Toner Supply> <Toner Density> <Vsp Image Density> (low) light high supplied high return to the 1. Charge original condition (high) dark no supplied...
  • Page 68 2. The toner supply control can be changed to C-Mode (fixed supply) or P-Mode (detect supply) by SP mode (30). The toner supply ratio is changed by the combined settings of DPS101-3, 4. The default is 30% in P-mode. DPS101 Toner MODE Density...
  • Page 69 5. Timing Main Switch Start Key Blade Solenoid Erase Lamp QL/PTL Bias • 1st Feed MC T/S Charge Scanner ID Sensor LED Pick-off Pawl Solenoid Toner Supply Clutch Fusing Exit Sensor T1: When the Start key is pressed, the PTL and erase lamp turn on. The PTL turns off 0.12 second after the fusing exit sensor turns off.
  • Page 70 4.8.2 Replacement and Adjustment 1. ID Sensor Replacement 1. Turn off the main switch. 2. Open the front cover. ID Sensor 3. Slide out the ID sensor. 4. Clean the ID sensor with a blower brush. Registration Clutch Stopper 2. PTL Replacement 1.
  • Page 71 4. ID Sensor Vsg Adjustment CAUTION: • If Vsg is not adjusted, it causes toner density control to malfunction. • Vsg must be adjusted in the following cases: 1. Main PCB replacement 2. ID sensor replacement 3. Drum replacement 4. Toner density control malfunction (Toner density high or low) Adjustment standard = 4 ±...

  • Page 72: Image Transfer, Paper Separation And Paper Transport

    4.9 IMAGE TRANSFER, PAPER SEPARATION AND PAPER TRANSPORT 4.9.1 Overview A high positive voltage is applied to the transfer corona wire, and the corona wire generates positive ions. These positive ions are applied to the copy paper, and the positive charge attracts the negatively charged toner away from the drum and onto the paper.
  • Page 73 2. T/S Corona Unit Release Lever T/S Corona Unit Release Lever When the paper misfeed occurs, lower the T/S corona unit as shown for easy paper removal. T/S Corona The T/S corona unit is secured to the guide rail Unit bracket with a screw to prevent the corona unit from coming out when lowering and raising it.
  • Page 74 4.9.3 Replacement and Adjustment 1. T/S Corona Wire Replacement Separation Corona Paper Corona Wire 1. Open the front cover. Front Endblock Guide Cover Rear 2. Remove the screw securing T/S corona Endblock unit. Cover 3. Lower the T/S corona unit and slide it out. 4.
  • Page 75 13. Remove the front of the transport unit as shown (1 E-ring, 1 spring, and 1 shaft). 14. Pull the right transport wheel and belt to the right and remove the transport wheel. 15. Remove the transport belt. - 74 -...

  • Page 76: Cleaning

    4.10 DRUM CLEANING 1. Overview Cleaning Blade Drum cleaning is accomplished by the pre-cleaning corona (PCC), cleaning brush, and cleaning blade. Cleaning Brush As the region of the drum with toner still Blade attached enters the cleaning unit, the PCC Scraper Point of Contact applies a positive charge, and the charge on...
  • Page 77 The PCC prevents this problem. As the region Cleaning Blade of the drum with toner still attached moves into the cleaning unit, the PCC applies a positive charge, and the charge on the toner is changed from negative to positive. Since like charges Cleaning repel, it is much easier for the cleaning blade to Brush...
  • Page 78 4. Cleaning Blade The cleaning pressure mechanism is shown to Stepped Bushing the right. When the cleaning solenoid is energized, it turns the cleaning solenoid lever clockwise (rear view). Due to the pull of the cleaning blade pressure spring, the pressure arm also turns clockwise and pushes the cleaning blade lever up.
  • Page 79 5. Pick-off Mechanism - Touch and Release Mechanism - Pawl Spring The pick-off solenoid energizes just after the Pawl Shaft registration rollers turn on. The pick-off lever rotates counterclockwise (rear view) and Pick-off Lever pushes the pawl shaft pin. Then the pawl shaft rotates clockwise and the pick-off pawls touch the drum.
  • Page 80 6. Timing Main Switch Start Key Blade Solenoid Erase Lamp QL/PTL Bias • 1st Feed MC Charge Corona Scanner ID Sensor LED Pick-off Pawl Solenoid Toner Supply Clutch Fusing Exit Sensor T1: When the main switch is turned on, the blade solenoid turns on. The blade releases 15 minutes after the main motor stops.
  • Page 81 4.10.1 Replacement and Adjustment 1. Cleaning Unit Removal Drum Stay 1. Remove the development unit. 2. Lower the T/S corona unit. Knob 3. Remove the charge corona unit (1 screw) and the drum stay (1 knob and 1 screw). NOTE: The drum stay knob has a reverse thread.
  • Page 82 3. Cleaning Brush Replacement Cleaning Unit 1. Remove the cleaning unit drive gear (1 Drive Gear Allen screw), the collar, and the bushing Collar Bushing Entrance Seal from the rear end of the cleaning brush shaft. 2. Remove the bushing from the front end (1 E-ring).
  • Page 83 11. Assemble the pawl shaft assembly and place it into the cleaning unit, sliding the rear end of shaft into the hole in the rear Pawl Shaft Pin side plate. Spring End NOTE: 1. When installing the cam holder and the cam rider, align [A] with [B] as shown in the figure.

  • Page 84: Fusing

    4.11 FUSING 4.11.1 Overview Hot Roller Fusing Lamp Hot Roller Stripper Fusing Exit Rollers Fusing Thermistor Pressure Roller Pressure Spring Pressure Lever The image is fused to the copy paper by two rollers which apply heat and pressure. The hot roller is made of teflon and the pressure roller is made of silicone rubber. Pressure is constantly applied between the rollers.
  • Page 85 4.11.2 Mechanical Parts 1. Fusing Drive Release Gear The fusing drive gear turns the release gear which drives the hot roller gear. Hot Roller Gear Rotation passes from the hot roller gear through two idle gears to the exit rollers. The pressure roller is driven by the friction between the two fusing rollers.
  • Page 86 2. Fusing Temperature Control This machine controls the fusing temperature based on a zero cross signal. After the main switch is turned on, the fusing lamp remains lit until the temperature reaches 165°C. Then fusing lamp control shifts to ON/OFF control until the fusing temperature reaches the operating temperature (185°C).
  • Page 87 4.11.3 Replacement and Adjustment 1. Fusing Unit Removal 1. Open the front cover. Stopper Pin 2. Push the fusing unit release lever to the right. 3. Pull out the fusing unit until it is fully extended. 4. Push the fusing unit release lever to the right, move the fusing unit to the left to disengage the stopper pin, and remove the unit from the copier.
  • Page 88 Hot Roller Gear Fusing Exit Ass’y Bearing Pressure Spring Hot Roller Harness Support Collar Bracket Rear Lamp Terminal CAUTION: After installing the fusing lamp, check that the lamp does not contact the inside of the roller by rotating the fusing lamp insulator. Make sure that both front and rear fusing lamp insulators are properly set in the terminal sockets.
  • Page 89 4. Hot Roller Stripper Replacement 1. Pull out the fusing unit and open the fusing exit assembly. 2. Unhook the springs and remove the hot roller strippers. 3. Install new strippers and connect the springs. Hot Roller Stripper Spring 5. Thermofuse Replacement Thermistor 1.

  • Page 90: Misfeed Check

    4.12 MISFEED CHECK 4.12.1 Overview The CPU uses the registration sensor and the fusing exit sensor to check for paper misfeeds. When there is a paper misfeed, the check paper path ( ) indicator lights or blinks and the copier stops. Check the misfeed location display. Location A: Feeding Section Location B: Fusing Unit Location D: Sorter...

  • Page 91: Pulse Generator

    4.13 PULSE GENERATOR Pulse Generator 4.13.1 Overview Pulse Generator Disk Sensor The CPU uses a pulse generator to check the drum clock during a copy cycle. When the Start key is pressed, the main motor turns on and the clock signal is generated by the revolution of the disk assembly.

  • Page 92: Others

    4.14 OTHERS 4.14.1 Operation Panel Removal Operation Panel Side Panel Bracket DC Harness Inner Panel Brackets 1. Turn off the main switch and open the front covers. 2. Remove the 2 screws securing the operation panel to the inner panel brackets. 3.

  • Page 93: Sp Mode/Dip Sw Table

    5. SP MODE/DIP SW TABLES 5.1 SERVICE PROGRAM MODE......93 5.2 DIP SWITCH TABLES........96 5.3 INPUT CHECK MODE........97 - 92 -...

  • Page 94: Service Program Mode

    5.1 SERVICE PROGRAM MODE 1. Service Program Access Procedure For service For sales representatives and Function Remarks representatives customers Access SP TURN ON "00" WILL BE mode DPS101-2 ON DISPLAYED IN THE THE MAIN MAG. RATIO BOARD. INDICATOR. CLEAR STOP ENERGY SAVER /CLEAR MODES "0"...

  • Page 95: Service Program Mode Table

    2. Service Program Mode Table Mode Defaults Data All Indicators On 10: OFF 11: All the indicators on the Operation (NOTE 2) Panel turn on. Misfeed Detection Off 10: OFF 11: Copies are made without misfeed detection. Exposure Lamp Off 10: OFF 11: The exposure lamp is off in Free Run mode.
  • Page 96 Mode Defaults Data Forced Start 10: Normal (NOTE 3) 11: The ready temperature is ignored to turn the Start key green. (Factory use only) Input Check 10: Normal (NOTE 5) 11: Input data from the sensors is displayed. Refer to section 5-3. Key Card Operation 10: Not used 11: The Key Card operates.

  • Page 97: Dip Switch Table

    5.2 DIP SWITCH TABLE 1. Main Board 1) DPS 101 TONER MODE DENSITY 3.5% NORMAL FREE C MODE MODE 10.5% HIGH NOR- NOR- P MODE HIGHER 2) DPS 102 LARGE LARGE SCANNER ↑ ↑ FREE RUN PRODUCTION NORMALLY ON ↓ ↓...
  • Page 98 5.3 INPUT CHECK MODE When you enter the SP mode 88, the copier displays the sensor readings on the monitor. NOTE: Before checking the sensor data with this input check mode, you have to leave the SP mode. MODE REMARKS "= "...

  • Page 99: Call Service Conditions

    6. CALL SERVICE CONDITIONS 6.1 CALL SERVICE CONDITION CODES....91 6.2 CALL SERVICE CONDITION DETAILS .... 92 - 98 -...
  • Page 100 6.1 CALL SERVICE CONDITIONS Unit Code Definition Detail Exposure lamp malfunction Displayed if the lamp filament is broken or if the lamp turns on during stand-by. Exposure Lamp relay malfunction Displayed if the lamp stays off or the lamp stays on longer than 10±4 seconds during a copy cycle.
  • Page 101 Unit Code Definition Detail Total counter malfunction Displayed if the total counter is not set or is defective. Communication error between the optics The main board is defective. CPU and the main CPU. Communication error between the The operation panel board or main board is defective. Poor connection Others operation panel board and the main board.
  • Page 102 PROBLEM CAUSE ACTION STATUS "21" 1. SCANNER DRIVE MALFUNCTION 1. Check that the scanner is working properly. → If it is, check CN403-4 on the main board. (SCANNER HOME 1) SCANNER MOTOR PULLEY SCREW 5V → Replace the main board. POSITION NOT ON) UNLOCK 0V →...
  • Page 103 PROBLEM CAUSE ACTION STATUS "2A" 1. 2ND SCANNER HOME POSITION 1. Check if the 2nd scanner is moving properly. (2ND SCANNER HOME DETECTION MALFUNCTION Moving properly POSITION NOT ON) 2. 2ND SCANNER DRIVE SECTION Check CN403-6 on the main board. :When 2nd Scanner Motor is OFF →...
  • Page 104 PROBLEM CAUSE ACTION STATUS "54" 1. POWER RELAY POOR CONTACT START (READY SIGNAL NOT ON) 2. FUSING LAMP OPEN 3. FUSING CONTROL BOARD MALFUNCTION FUSING REPLACE THE IS FUSING CONTROL LAMP FUSING CONTROL BOARD CN1-8 (LOW) 4. MAIN BOARD MALFUNCTION BOARD 5.
  • Page 105 PROBLEM CAUSE ACTION STATUS "61" 1. PULSE GENERATOR MALFUNCTION 1. Check whether the pulse generator disk is rotating. (PULSE GENERATOR 2. POWER RELAY MALFUNCTION Rotating MALFUNCTION) 3. MAIN BOARD MALFUNCTION Check the output of the pulse generator at CN102-A5 on the main board. 4.

  • Page 106: Preventive Maintenance

    7. PREVENTIVE MAINTENANCE 7.1 OVERVIEW............98 7.2 PM TABLE............99 7.3 EXPLANATION OF REGULAR PM ....101 7.4 REGULAR PM PROCEDURE ......103 - 105 -...

  • Page 107: Overview

    7.1 OVERVIEW The Purpose of PM (Preventive Maintenance) 1) Regular exchange of worn out parts 2) Removal of dirt to maintain good copy quality 3) Inspection and adjustment to maintain good copy quality 4) Lubrication 5) Replacement of defective parts 6) At service call, deal with customer’s complaints with advice and instruction.

  • Page 108: Pm Table

    7.2 PM TABLE O: Clean : Replace : Lubricate : Inspect Regular Item Mainte- Note Check nance Optics Mirrors, Lens, Reflectors Silicone cloth or cotton pad with water, blower brush Exposure glass Alcohol or water Platen cover sheet Alcohol or water Scanner guide rod, guide rail, After lubicating with launa guide rod felt...
  • Page 109 Regular Item Mainte- Note Check nance Development unit Developer After replacement, condition the drum for 99 cycles Side seals Replace if necessary Development unit gears Water or dry cloth Toner tank Clean if necessary Entrance seal Dry cloth Fusing unit Hot roller Do not scratch Pressure roller...

  • Page 110: Explanation Of Regular Pm

    7.3 EXPLANATION OF REGULAR PM Item Explanation Optics unit Mirror, Lens, Reflector, Stains on any part of the optics unit result in a dirty Exposure Glass, Platen background, black lines, black spots, or areas of Cover, Toner Shield Glass decreased sharpness on the copy image. Periodic cleaning is required.
  • Page 111 Item Explanation Fusing Unit Hot Roller A worn out hot roller and pressure roller will cause fusing malfunction, and dirty copies. Replace at regular Pressure Roller intervals. Thermistor If toner accumulates on the thermistor, fusing temperature control may not be accurate. Inspect the thermistor at regular intervals.

  • Page 112: Regular Pm Procedure

    7.4 REGULAR PM PROCEDURE Make a copy Make 11 copies of your test chart (OS-A3) at manual image density level 2, and use the 11th copy. Optics (every 40K) 1. Clean the mirrors, lens and reflectors with a silicone cloth, cotton pad with water, or a blower brush. 2.
  • Page 113 Development unit 1. Clean the development unit guide plate in the copier (every 40K) with a damp cloth. 2. Remove the old developer. 3. Clean the entrance seal and upper brush seal. 4. Inspect the side seals and the toner supply section. 5.
  • Page 114 Machine front side Lubricate the oilless bushings using spindle oil. (every 80K) Exterior unit Clean the covers. Copy quality After performing drum conditioning for 10 copies, turn off the DIP SW on the operation panel board and make a copy within 10 seconds. - 113 -...

  • Page 115: Troubleshooting

    8. TROUBLESHOOTING - 114 -...
  • Page 116 1. White Copy Problem Cause White copy 1. Charge is not applied. Due to C-B power pack failure, poor contact of the H-V lead wire, or a broken wire, charge is not applied on the drum surface. 2. The copy image is not transferred to the paper. Due to transfer /separation P.P.
  • Page 117 Action Remarks White Copy H L H:5V OFF ON L: less than 0.5V 1. Check the charge corona wire 2. Check CN101-A17 on the main board goes from 5 to 0V 3. Check between conn. #1 ~ #14 on the BCP Power Pack BC power pack 4.
  • Page 118 2. Dirty Background Problem Cause When copying, dirty 1. The charge corona wire is dirty background will appear If the charge corona wire is contaminated, the charge on the drum at manual image surface is increased due to a thicker diameter of the wire. density level 4.
  • Page 119 Action Remarks After attaching the pad soaked with launa oil, Dirty Background don’t attach the exposure glass. Then perform 10 copies in free run mode. Lamp regulator Charge Corona output adjustment 1. Clean the charge corona wire 2. Check the mounting position of the wire 1.
  • Page 120 Action Remarks Doctor Gap is too wide 1. Check the doctor gap Deterioration of Drum 1. Adjust the lamp regulator Voltage 2. Replace the drum After adjusting the lamp voltage, adjust V =3.0±0.06V Deterioration of Developer 1. Replace the developer VDE high? Adjust VDE - 119 -...
  • Page 121 3. Uneven Image Density Problem Cause Uneven image density 1. Uneven charge current. appears on solid black (1) Contamination of the charge corona unit. copies. (2) Uneven mounting height of the charge corona wire. The copied pattern will not change regardless of reproduction ratio.
  • Page 122 Action Remarks Uneven Image Density Charge Corona 1. Clean the charge corona wire 2. Check the wire height Mirrors and Exposure Glass 1. Clean the mirror, lens and exposure glass Exposure Lamp 1. Check for exposure lamp deterioration 2. Adjust the exposure lamp positon - 121 -...
  • Page 123 4. Vertical Black Line Problem Cause Black stripe on the rear When pulling out the development unit, the toner shield glass is moved out side of the copy. of position due to contact with the development unit. Black line Vertical black line on 1.
  • Page 124 Action Remarks * Due to adhering launa oil, the 1st and 2nd mirrors may be Vertical Black Line contaminated. * Due to deterioration of the exposure lamp, a black line may appear Development on the copy. Unit If the filament is stretched, see below.
  • Page 125 5. Vertical White Lines Problem Cause Indistinct white line on Due to contamination of the charge corona wire, or corona unit casing the rear side of the roughness. copy. Indistinct white line A scraped white line will Toner on the drum is scraped off by an unknown foreign substance. appear on the copy.
  • Page 126 Action Remarks Vertical White Lines *Due to deterioration of the charge corona wire, sharp white lines will Charge Corona appear on the copy. Check the charge corona wire Cleaning Blade Check the cleaning blade Foreign Substance ID Sensor Toner Pile-up T/S Guide Plate - 125 -...
  • Page 127 6. Horizontal Black Line Problem Cause Black lines 1. The drum is scratched. perpendicular to 2. The hot roller is scratched. the paper feed 3. Toner adheres to the drum surface as a result of blade pressure. direction appear Note: Check the interval of the appearance of horizontal black lines. on the copy If black lines appear at 251 mm intervals, the cause is a scratched drum or image.
  • Page 128 Action Remarks Horizontal Black Line Drum Check the Drum Hot Roller Check the Hot Roller Cleaning Blade Check the Cleaning Blade Seals on dev. unit Check the seals on the dev. unit Check the erase lamp Drum Check for scratches on the drum No scratch on the drum Clean the drum surface...
  • Page 129 7. Jitter Problem Cause The cause is the scanner drive pulley (24 ∅) Jitter appears at 80 mm intervals on the copy. 1. Irregular revolution of the scanner drive motor. 2. The pulley has burrs or scratches on the surface. Irregular jitter appears It may be caused by an incorrect voltage being supplied from the power on the copy.
  • Page 130 Action Remarks Jitter Scanner Drive Motor 1-1. Check the scanner drive motor Scanner Drive Pulley 1-2. Check the scanner drive pulley Power Supply Unit Check the scanner movement Check the optics control board Check the scanner drive motor Check the power supply unit Action Remarks 1.
  • Page 131 9. Distorted Copy Image Problem Cause The copied image is a The 1st scanner and 2nd scanner are not parallel. parallelogram shape * This problem may occur if the scanner lock plate is not mounted when transporting the copier. Original Front side of 2nd scanner Copy (2) Copy (1)
  • Page 132 10. Image Density is too high Problem Cause The toner density is too 1. The lamp regulator output voltage is too high. high 1. Dirty background 2. The bias voltage is too high. may appear on the 3. The charge current is too low. copy.
  • Page 133 Action Remarks Toner Density too High 30% in Detect Supply Mode Mark the toner supply shaft Set SP mode (30) to "10" Make the following DIP SW Press the Start key after settings: 101-3: "ON" the main switch is turned OFF 101-4: "OFF"...
  • Page 134 Action Remarks To decrease toner density, set DIP SW 101-3 "OFF" and 101-4: "ON" Make 10-20 copies in A3 size with the platen cover Clean the ID sensor open with a blower brush or Clean inside copier, especially the PTL and ID dry cloth sensor >...
  • Page 135 11. Toner Density is too low Problem Cause The toner density is too 1. V is out of adjustment low. When V is lower than 2.5 V, the toner supply shifts to fixed supply mode. 1. Density of solid 2. The charge current is too high areas is too low.
  • Page 136 Action Remarks Image Density too Low Detect Supply Mode 30%? Mark on the toner supply Clutch Shaft. Set SP mode (30) to "10". Turn on DIP SW 101-2 on the Make the following DIP SW main board settings. 101-3: "ON", 101-4: "OFF" Press the Start key 2.6 revolutions per copy...
  • Page 137 Action Remarks > 2.5V Make 20 copies with the drum Check the ID sensor conditioning switch ON and mounting check the revolution Is the Toner Supply Shaft revolving? VSP > 0.5V Check the main control board Check the charge current and bias voltage Is V displayed in the size...
  • Page 138 12. Copy Image is insufficiently fused Problem Cause The image can be 1. The nip width is too narrow. rubbed off with fingers. 2. The fusing temperature is too low. 3. Thermistor malfunction. Action Remarks 1. Replace the pressure spring on the fusing unit. Specification 5.6 ±...
  • Page 139 13. Scanner movement is out of control Problem Cause When the main power 1. When the power becomes too low (less than 160V) the reset signal switch is turned on, the cannot be transmitted to the optics control board. This causes the scanner is driven to the scanner to be driven to the return position.

  • Page 140: Parts Catalog

    RICOH FT5034C (A71900) PARTS CATALOG RICOH COMPANY, LTD. First Edition Oct 1994...
  • Page 141 PARTS CATALOG INTRODUCTION This chapter instructs you the numbers and names of this parts on this machine. INDEX to PARTS CATALOG FT5034C (A71900) DF42 (A71901) CS230 (A71902)
  • Page 142 FT5034C (A71900)
  • Page 143 PARTS CATALOG INTRODUCTION This chapter instructs you the numbers and names of this parts on this machine. INDEX to PARTS CATALOG 1.EXTERIOR (A71900)............. 2 11.CLEANING UNIT (A71900) ..........22 2.OPERATION PANEL (A71900) ..........4 12.DEVELOPMENT UNIT (A71900)..........24 3.PLATEN COVER AND CASSETTE (A71900)....... 6 13.OPTICS SECTION 1 (A71900)..........26 4.REGISTRATION (A71900) ............
  • Page 144 1. EXTERIOR (A71900)
  • Page 145 A719 7005 Decal:Jam:Dom A719 0755 Upper Cover Ass’y A719 7012 Display:Toner A719 7034 Decal:Position A3 A719 0834 Decal:S/R Logo (FT5034C) A719 0144 Pad Exterior A719 0846 Decal:S/R Logo (FT5350C) A719 0145 Mylar Seal - 0.188x23x190 A719 7032 Decal:Logo:FT5034C A719 0146...
  • Page 146 2. OPERATION PANEL (A71900)
  • Page 147 2. OPERATION PANEL (A71900) Index Q’ty Per Index Q’ty Per Description Description Part No. Part No. Assembly Assembly A719 0483 Main Switch:125V 15A A719 0841 Function Key:Full Size A719 0750 OP Panel Bracket Ass’y:Left A719 0840 Function Key:Enlage A719 0516 OP Panel Bracket:Right A719 0839 Function Key:Reduce...
  • Page 148 3. PLATEN COVER AND CASSETTE (A71900)
  • Page 149 3. PLATEN COVER AND CASSETTE (A71900) Index Q’ty Per Index Q’ty Per Description Description Part No. Part No. Assembly Assembly A719 0854 Platen Cover Ass’y A719 0039 Actuator:B5 A719 0855 Cassette Ass’y A3 A719 0226 Bottom Plate Pad A719 0856 Cassette Ass’y A4 A719 0227 Front :Side Fence:Ass’y...
  • Page 150 4. REGISTRATION (A71900)
  • Page 151 4. REGISTRATION (A71900) Index Q’ty Per Index Q’ty Per Description Description Part No. Part No. Assembly Assembly A719 0001 Bushing : M8 A719 0481 Pr-transfer Lamp:430/1.3W A719 0009 Bushing : M6 A719 0597 Upper Guide:Manual Feed A719 0738 Photo Interrupt:Type T A719 0598 Middle Guide A719 0830...
  • Page 152 Index Q’ty Per Index Q’ty Per Description Description Part No. Part No. Assembly Assembly A719 0716 PCB:P-sensor 0313 0050W Philips Pan Head Screw - M3x5 0314 0060W Philips Pan Head Screw - M4x6 0314 0080W Philips Pan Head Screw - M4x8 0314 0120W Philips Pan Head Screw - M4x12 0434 0080W Tapping Screw - M4x8 0720 0030E Retaining Ring - M3...
  • Page 154 5. PAPER FEED (A71900)
  • Page 155 5. PAPER FEED (A71900) Index Q’ty Per Index Q’ty Per Description Description Part No. Part No. Assembly Assembly A719 0001 Bushing : M8 A719 0221 Bkt.Feed Pad:Lower:Ass’y A719 0738 Photo Interrupt:Type T A719 0337 M/H:Feed Upper A719 0089 Photo Interruptor Pack A719 0338 M/H:Feed Lower A719 0111...
  • Page 156 Index Q’ty Per Index Q’ty Per Description Description Part No. Part No. Assembly Assembly 0313 0100W Philips Pan Head Screw - M3x10 0313 0120W Philips Pan Head Screw - M3x12 0314 0080W Philips Pan Head Screw - M4x8 0314 0120W Philips Pan Head Screw - M4x12 0323 0080W Philips Sunken Head Screw - M3x8 0434 0080W Tapping Screw - M4x8 0720 0025E Retaining Ring - M2.5...
  • Page 158 6. PAPER TRAY (A71900)
  • Page 159 6. PAPER TRAY (A71900) Index Q’ty Per Index Q’ty Per Description Description Part No. Part No. Assembly Assembly A719 0001 Bushing : M8 A719 0666 Shielding Plate A719 0040 Gear:18T A719 0821 Upper Paper Feed Plate A719 0165 Arm:Pad:Ass’y A719 0667 Guide Block:Lower A719 0170 Shaft:Release...
  • Page 160 7. DRUM SECTION (A71900)
  • Page 161 7. DRUM SECTION (A71900) Index Q’ty Per Index Q’ty Per Description Description Part No. Part No. Assembly Assembly A719 7011 Decal:High Voltage A719 0399 Receptacle:Main Corona Ass’y A719 0029 Rear End Block:M.Corona A719 0411 Bushing 06 A719 0030 Seal - Drum A719 0785 Front:Drum Flange A719 0031...
  • Page 162 Index Q’ty Per Index Q’ty Per Description Description Part No. Part No. Assembly Assembly 0314 0050W Philips Pan Head Screw - M4x5 0314 0060W Philips Pan Head Screw - M4x6 0314 0080W Philips Pan Head Screw - M4x8 0324 0060W Philips Sunken Head Screw - M4x6 0434 0060W Tapping Screw - M4x6 0434 0080W Tapping Screw - M4x8 0720 0030E Retaining Ring - M3...
  • Page 164 8. TRANSFER SECTION (A71900)
  • Page 165 8. TRANSFER SECTION (A71900) Index Q’ty Per Index Q’ty Per Description Description Part No. Part No. Assembly Assembly A719 0005 Bushing : M6 A719 0817 Toner Bottle Case A719 0110 Bracket Outlet Fan A719 0150 Fan Cover MC A719 0294 Toner Collect Bottle Cap A719 0295 Roller...
  • Page 166 9. FUSING UNIT 1 (A71900)
  • Page 167 9. FUSING UNIT 1 (A71900) Q’ty Per Q’ty Per Index Index Part No. Description Part No. Description Assembly Assembly A719 0859 Fusing Unit Ass’y A719 0418 Spring:Fusing Drive A719 0012 Thermistor Spring A719 0420 Rear Bkt:Lamp Terminal A719 0832 Brk:Thermal Fuse A719 7019 Decal:Small A719 0083...
  • Page 168 10. FUSING UNIT 2 (A71900)
  • Page 169 10. FUSING UNIT 2 (A71900) Q’ty Per Q’ty Per Index Index Part No. Description Part No. Description Assembly Assembly A719 0005 Bushing : M6 0434 0060W Tapping Screw - M4x6 A719 0085 Shaft:Hot Roller Stipper 0434 0080W Tapping Screw - M4x8 A719 0086 Spr:Hot Roller Stripper 0720 0030E Retaining Ring - M3...
  • Page 170 11. CLEANING UNIT (A71900)
  • Page 171 11. CLEANING UNIT (A71900) Q’ty Per Q’ty Per Index Index Part No. Description Part No. Description Assembly Assembly A719 0852 Cleaning Unit Ass’y A719 0279 Seal - 2x5x11.5 A719 0005 Bushing : M6 A719 0280 Cleaning Brush 5205 3551 Cleaning Unit Casing A719 0281 Spring Plate:Cleaner A719 0044...
  • Page 172 12. DEVELOPMENT UNIT (A71900)
  • Page 173 12. DEVELOPMENT UNIT (A71900) Q’ty Per Q’ty Per Index Index Part No. Description Part No. Description Assembly Assembly A719 0018 Chain:Front Cover 0313 0120W Philips Pan Head Screw - M3x12 A719 0040 Gear:18T 0314 0060W Philips Pan Head Screw - M4x6 A719 0235 Seal - 3x6x52 0314 0120W Philips Pan Head Screw - M4x12...
  • Page 174 13. OPTICS SECTION 1 (A71900)
  • Page 175 13. OPTICS SECTION 1 (A71900) Q’ty Per Q’ty Per Index Index Part No. Description Part No. Description Assembly Assembly A719 0019 Stud Bracket A719 0561 Reflector:Aid A719 0020 Adjusting Cam:Start Lever A719 0565 Bracket:H.P Sensor 5205 1696 Main Reflector A719 0569 Bracket:Scanner Drive Motor A719 0026 Mylar:Guide Channel...
  • Page 176 14. OPTICS SECTION 2 (A71900)
  • Page 177 14. OPTICS SECTION 2 (A71900) Q’ty Per Q’ty Per Index Index Part No. Description Part No. Description Assembly Assembly A719 0022 Lens F8/180 AE 100 Ass’y A719 0566 Base:Lens Housing Ass’y A719 0023 Shielding Guide A719 0567 Lens Sheet A719 0024 Right Shield Ass’y A719 0568 Bracket:Ads Board...
  • Page 178 15. DRIVE SECTION (A71900)
  • Page 179 15. DRIVE SECTION (A71900) Q’ty Per Q’ty Per Index Index Part No. Description Part No. Description Assembly Assembly A719 0001 Bushing : M8 A719 0302 Gear:45T A719 0005 Bushing : M6 A719 0303 Toner Collection Bottle A719 0010 Decal:High Voltage A719 0802 Follower Shaft A719 0013...
  • Page 180 Q’ty Per Q’ty Per Index Index Part No. Description Part No. Description Assembly Assembly 0313 0050W Philips Pan Head Screw - M3x5 0313 0060W Philips Pan Head Screw - M3x6 0314 0060W Philips Pan Head Screw - M4x6 0314 0080W Philips Pan Head Screw - M4x8 0314 0100W Philips Pan Head Screw - M4x10 0314 0120W Philips Pan Head Screw - M4x12 0434 0080W Tapping Screw - M4x8...
  • Page 182 16. ELECTRICAL SECTION 1 (A71900)
  • Page 183 16. ELECTRICAL SECTION 1 (A71900) Q’ty Per Q’ty Per Index Index Part No. Description Part No. Description Assembly Assembly A719 0027 Holder Harness 0314 0060M Philips Pan Head Screw - M4x6 A719 0744 Temperature Control Ass’y 0434 0060W Tapping Screw - M4x6 A719 0103 Fuse Block Cover 0434 0080W Tapping Screw - M4x8...
  • Page 184 17. ELECTRICAL SECTION 2 (A71900) 17. ELECTRICAL SECTION 2 (A71900)
  • Page 185 17. ELECTRICAL SECTION 2 (A71900) Q’ty Per Q’ty Per Index Index Part No. Description Part No. Description Assembly Assembly A719 0335 M/H:Front Door 0313 0120W Philips Pan Head Screw - M3x12 A719 0506 Safety Switch Bracket 0434 0080W Tapping Screw - M4x8 A719 0507 Safety Switch Lever 0720 0030E Retaining Ring - M3...
  • Page 186 18. FRAME SECTION (A71900)
  • Page 187 18. FRAME SECTION (A71900) Q’ty Per Q’ty Per Index Index Part No. Description Part No. Description Assembly Assembly A719 0094 Unit Lock Lever A719 0674 Guide Rail:Left A719 0112 Pad - 2x12x6.5 A719 0675 Plate:Guide Roller:Ass’y A719 0113 Stud:Pressure Plate Left A719 0680 Holder:Front Loading Unit A719 0114...
  • Page 188 PARTS INDEX...
  • Page 189 Page and Page and Description Part No. Description Part No. Index No. Index No A719 0001 Bushing : M8 A719 0037 Actuator:B5R 7- 28 A719 0001 Bushing : M8 A719 0038 Actuator:A4 7- 28 A719 0001 Bushing : M8 A719 0039 Actuator:B5 7- 28 A719 0001...
  • Page 190 Page and Page and Description Part No. Description Part No. Index No. Index No A719 0075 Shaft:Pick Off Pawl 23- 27 A719 0112 Pad - 2x12x6.5 A719 0076 Pick Off Solenoid Ass’y 31- 14 A719 0113 Stud:Pressure Plate Left A719 0077 Spring:Pick Off Pawl 23- 28 A719 0114...
  • Page 191 Page and Page and Description Part No. Description Part No. Index No. Index No A719 0151 Solenoid Bracket:Ass’y 31- 25 A719 0188 Roller Sleeve:Feeder A719 0152 Replacement:T:Total Ass’y 15- 21 A719 0191 Snap Ring:C6 9- 17 A719 0154 Holder:T & D Ass’y 15- 23 A719 0191 Snap Ring:C6...
  • Page 192 Page and Page and Description Part No. Description Part No. Index No. Index No A719 0225 Brake A719 0280 Cleaning Brush 23- 36 A719 0226 Bottom Plate Pad 7- 29 A719 0281 Spring Plate:Cleaner 23- 37 A719 0227 Front :Side Fence:Ass’y 7- 30 A719 0282 Blade:Cleaning:Plate...
  • Page 193 Page and Page and Description Part No. Description Part No. Index No. Index No A719 0317 Fusing Unit Cover 19- 15 A719 0355 Spacer - 3x5x6.5 23- 50 A719 0318 Mylar:Fusing Entrance 19- 16 A719 0356 Spring:Regist Roller F. 23- 51 A719 0319 Entrance Guide Bracket Ass’y 19- 17...
  • Page 194 Page and Page and Description Part No. Description Part No. Index No. Index No A719 0390 Spring:Corona Wire 15- 36 A719 0426 Spring:Rear:Lock Lever 21- 16 A719 0390 Spring:Corona Wire 23- 53 A719 0427 Slider:Pawl Plate:U.Ass’y 21- 17 A719 0392 Pin:Corona 15- 37 A719 0428...
  • Page 195 Page and Page and Description Part No. Description Part No. Index No. Index No A719 0462 Bracket:CFL Stabilizer 33- 12 A719 0503 F.Side Plate:M.body Ass’y 37- 20 A719 0463 Bracket:Power Cord 33- 13 A719 0504 Stay:Side Plate Fixture 37- 22 A719 0464 Fusing Unit Rail 37- 14...
  • Page 196 Page and Page and Description Part No. Description Part No. Index No. Index No A719 0538 Pin:Door Hinge 3- 32 A719 0576 Cover:Motor 29- 41 A719 0542 Arm:Holder 7- 11 A719 0577 Seal - Optics 29- 42 A719 0543 Sleeve:Free Cushion 7- 12 A719 0578 Pulley:Scan Drive 96T Ass’y...
  • Page 197 Page and Page and Description Part No. Description Part No. Index No. Index No A719 0613 Support:Fri.Pad Bkt Ass’y 9- 47 A719 0648 Bracket:End Detect 9- 66 A719 0614 Bracket:Manual Sensor 9- 48 A719 0648 Bracket:End Detect 11- 57 A719 0615 Manual Cover 3- 41 A719 0650...
  • Page 198 Page and Page and Description Part No. Description Part No. Index No. Index No A719 0683 Holder:Roller 17- 34 A719 0734 Hot Roller 19- 21 A719 0684 Pressure Arm Ass’y 13- 44 A719 0735 Power Supply Cord:S.Ass’y A719 0685 Rubber Pad - 1x5x10 13- 46 A719 0736 Cord Stopper...
  • Page 199 A719 0797 Gear:26T 31- 32 A719 0833 Front Loading Cover 13- 24 A719 0798 F.End Block Cover:T&S A719 0834 Decal:S/R Logo (FT5034C) 3- 38 A719 0799 F.End Block:T&S Corona A719 0835 Function Key:Zoom Small 5- 40 A719 0836 Function Key:Zoom Large...
  • Page 200 27- 46 A719 7016 Decal:Controller:Large 3- 50 A719 7017 Decal:Controller:Small 3- 51 A719 7019 Decal:Small 19- 36 A719 7020 Name Plate:FT5034C 3- 49 A719 7024 Decal:Development Unit 25- 62 A719 7025 Decal:Front Scale 3- 15 A719 7026 Decal A2 11- 66...
  • Page 201 Page and Page and Description Part No. Description Part No. Index No. Index No 5205 1696 Main Reflector 0313 0040W Philips Pan Head Screw - M3x4 27-101 5205 3551 Cleaning Unit Casing 0313 0050W Philips Pan Head Screw - M3x5 9-102 5205 3598 Side Seal Front...
  • Page 202 Page and Page and Description Part No. Description Part No. Index No. Index No 0314 0120W Philips Pan Head Screw - M4x12 9-112 0434 0080W Tapping Screw - M4x8 33-130 0314 0120W Philips Pan Head Screw - M4x12 11-112 0434 0080W Tapping Screw - M4x8 35-130 0314 0120W Philips Pan Head Screw - M4x12 25-112...
  • Page 203 Page and Page and Description Part No. Description Part No. Index No. Index No 0720 0050E Retaining Ring - M5 11-144 0951 4006B Philips Screw With Washer - M4x6 25-167 0720 0050E Retaining Ring - M5 17-144 0951 4008W Philips Screw With Flat Washer-M4x8 9-168 0720 0050E Retaining Ring - M5...
  • Page 204 Page and Page and Description Part No. Description Part No. Index No. Index No 1105 0099 Wire Saddle 33-189 1105 0197 Wire Saddle 11-191 1105 0197 Wire Saddle 33-191 1106 0394 Locking Support 33-193 1106 0395 Locking Support 33-194 1107 0486 Fuse - 8A, 250V 33-195 1204 1078...
  • Page 205 CS230 (A71902)
  • Page 206 PARTS CATALOG INTRODUCTION This chapter instructs you the numbers and names of this parts on this machine. INDEX to PARTS CATALOG 1.SORTER SECTION (A71902) ..........2.SORTER ADAPTER (A71902) ..........PARTS INDEX................7...
  • Page 207 1. SORTER SECTION (A71902)
  • Page 208 1. SORTER SECTION (A71902) Q’ty Per Q’ty Per Index Index Part No. Description Part No. Description Assembly Assembly 0313 0060W Philips Pan Head Screw - M3x6 A719 3020 Transfer Wheel:Rear 0313 0120W Philips Pan Head Screw - M3x12 A719 3021 Insert Wheel:Front:Left 0314 0060W Philips Pan Head Screw - M4x6 A719 3022...
  • Page 209 Index Q’ty Per Index Q’ty Per Description Description Part No. Part No. Assembly Assembly A719 3056 Spring:Transfer Wheel A719 3057 Spring:Torsion:Front A719 3058 Spring:Torsion:Rear A719 3006 Ass’y:Transfer Wheel:Front A719 3007 Ass’y:Transfer Wheel:Rear A719 3059 Tray Middle Ass’y:20B A719 3060 Tray Top Ass’y:20B A719 3047 Ass’y:Motor:SS22...
  • Page 210 2. SORTER ADAPTER (A71902)
  • Page 211 2. SORTER ADAPTER (A71902) Index Q’ty Per Index Q’ty Per Description Description Part No. Part No. Assembly Assembly 0314 0060W Philips Pan Head Screw - M4x6 A719 4025 Cam:Interface 0344 0080D Philips Truss Head Screw - M4x8 A719 4026 Stud 0434 0060W Tapping Screw - M4x6 A719 4027 Shaft:Upper:Roller...
  • Page 212 PARTS INDEX...
  • Page 213 Page and Page and Description Part No. Description Part No. Index No. Index No A719 3001 Tray:Middle:Painted 5- 19 A719 3036 Rack:Lift:Front 5- 52 A719 3002 5- 20 A719 3037 Rack:Lift:Rear 5- 53 A719 3003 Band:100mm 5- 22 A719 3038 Lock:Mounting 5- 54 A719 3004...
  • Page 214 Page and Page and Description Part No. Description Part No. Index No. Index No A719 4011 Motor:Feed 5- 23 0313 0060W Philips Pan Head Screw - M3x6 A719 4012 Roller:Interface:1’st 5- 24 0313 0120W Philips Pan Head Screw - M3x12 A719 4013 Roller:Interface:2’nd 5- 25...
  • Page 215 DF42 (A71901)
  • Page 216 PARTS CATALOG INTRODUCTION This chapter instructs you the numbers and names of this parts on this machine. INDEX to PARTS CATALOG 1.DF UNIT (A71901) ..............2 PARTS INDEX................5...
  • Page 217 1. DF UNIT (A71901)
  • Page 218 1. DF UNIT (A71901) Q’ty Per Q’ty Per Index Index Part No. Description Part No. Description Assembly Assembly 0741 3706A Bearing:D6 A719 2038 Belt Guide: Separation A719 2001 Timing Belt A719 2039 Shaft: Separation Belt A719 2002 Bushing: D6 A719 2040 Hub: Pick-up A719 2003 Magnet Catch...
  • Page 219 Index Q’ty Per Index Q’ty Per Description Description Part No. Part No. Assembly Assembly A719 2074 OP PCB Board 0434 0082W Tapping Screw - M4x8 A719 2078 Roller: Exit 0434 0062W Pan Head Tapping Screw - M4x6 A719 2079 Roller: Pick-up 0960 3005W Philips Flange Screw - M3 X 5 A719 2084 Damper: Motor...
  • Page 220 PARTS INDEX...
  • Page 221 Page and Page and Description Part No. Description Part No. Index No. Index No A719 2001 Timing Belt A719 2036 Cover: Paper Detect 3- 34 A719 2002 Bushing: D6 A719 2037 Pulse Generator: Pick-up 3- 35 A719 2003 Magnet Catch A719 2038 Belt Guide: Separation 3- 36...
  • Page 222 Page and Page and Description Part No. Description Part No. Index No. Index No A719 2071 Sensor: Exit 3- 68 0313 0060W Philips Pan Head Screw - M3x6 3-177 A719 2072 Sensor: Photo (doc.set) 3- 67 0314 0120W Philips Pan Head Screw - M4x12 3-112 A719 2073 PWB: SR-ADF2: Main...
  • Page 223 MODIFICATION BULLETIN NO. 1 PAGE 1 OF 2 SSUED ON: November 30, ’96 Date of Model Stork Volt/Hz Serial Number Modification Modified Article Development Unit: Ass’y (EY903000) Reason for To meet field requirements Modification A P/N for the assembled development unit has been established. Parts Catalog Old P/N New P/N...
  • Page 224 MODIFICATION BULLETIN NO. 1 PAGE 2 OF 2 SSUED ON: November 30, 96 V/Hz DESTINATION CODE SERIAL NUMBER MODEL NAME Ricoh FT5034C 220/50 China, etc. A719-00...
  • Page 225 MODIFICATION BULLETIN NO. 2 PAGE 1 OF 2 SSUED ON: November 30, ’96 Date of Model Stork Volt/Hz Serial Number Modification Modified Article PCB: SR - ADF2 : Main Reason for Parts Catalog Correction Modification Inter- Parts Catalog Old P/N New P/N Description Q’ty Used...
  • Page 226 MODIFICATION BULLETIN NO. PAGE 2 OF 2 SSUED ON: November 30, ’96 V/Hz DESTINATION CODE SERIAL NUMBER MODEL NAME Ricoh FT5034C 220/50 China, etc. A719-00...
  • Page 227 SORTER – CS230 –...
  • Page 228 CONTENTS 1. SORTER EXTERIOR..........2 2. SORTER INSTALLATION........3 3. SPECIFICATIONS ..........6 4. ELECTRICAL COMPONENT LAYOUT ....7 5. BASIC OPERATION..........8 6. REPLACEMENT...........14 - 1 -...

  • Page 229: Sorter Exterior

    1. SORTER EXTERIOR 1. Top Button Push it when clearing jammed paper from the sorter. 2. Top Bin Tray The delivered copies are stacked here while sort or stack mode is not in use. Also, when interrupt mode is used while the sorter is operating, all copies are delivered to the top bin tray.

  • Page 230: Sorter Installation

    2. SORTER INSTALLATION 2.1 ACCESSORY CHECK 1. Sorter Adapter .......... 1 2. Mount Stay..........1 3. Hinge Bracket: Front......... 1 4. Hinge Bracket: Rear ......... 1 5. Mounting Stud Screw........ 2 6. Screw M4 x 25 .......... 2 7. Screw M4 x 6 ..........2 8.
  • Page 231 8. Hook the sorter adapter [F] on the screws, and tighten the screws to fix the adapter. 9. Install the mount stay on the copier with two screws (M4 x 25) [G]. 10. Install the front and rear hinge brackets [H, I] on the copier with four screws (M4 x 6 - Tapping).
  • Page 232 14. Connect the sorter dc harness as follows: • 11P to CN103 on the main board. • 4P to 4P white connector from the copier dc harness. 15. Secure the sorter grounding wire to the power cord bracket [K], using the original screw.

  • Page 233: Specifications

    3. SPECIFICATIONS Number of Bins: 20 bins Type: Attachment type Paper Size: Maximum A3, 11" x 17" Minimum B6, 51/2" x 81/2" Paper Weight: 60 to 90 g/m Bin Capacity: Sort 35 sheets/A4, 20 sheets/B4, 15 sheets/A3 Stack 30 sheets/A4, 15 sheets/B4, 10 sheets/A3 Top Bin Capacity: 100 sheets (all sizes) Power Source:...

  • Page 234: Electrical Component Layout

    4. ELECTRICAL COMPONENT LAYOUT 1. Sorter Control Board 5. Paper Sensor (Sorter Adapter) 2. Upper Limit Switch 6. 1/3 Revolution Switch 3. Sorter Cover Switch (Reed Switch) 7. Bin Home Position Switch 4. Feed Motor (Sorter Adapter) 8. Bin Drive Motor - 7 -...

  • Page 235: Basic Operation

    5. BASIC OPERATION 5.1 OPERATION SUMMARY – Clear Mode – When the main switch of the copier is turned on, all the bins are lowered to the home position. When the Start key is pressed, the top bin shifts to the receiving positoin. This mode is called Clear Mode.

  • Page 236: Bin Drive Mechanism

    5.2 BIN DRIVE MECHANISM Bin Guide Transfer Wheel Drive Shaft Drive Gear Bin Drive Motor The bin drive mechanism moves the bins up and down to receive copies under the direction of the copier CPU. The main components of this mechanism are the bin drive gear, the transfer wheel, and the bins themselves.
  • Page 237 1/3 Revolution Switch Actuator Cam Front Transfer Wheel The CPU monitors the position of the bins through pulses generated by the micro switch (1/3 revolution switch) and the actuator cam on the front transfer wheel. The actuator cam has three grooves 120 degrees apart. As the front transfer wheel turns, the ridge on the actuator cam activates the 1/3 revolution switch.
  • Page 238 5.3 BIN SUPPORT MECHANISM Transfer Safety Lever Wheel Middle Gear Bin Support Pinion Gear Bin Support Rack Bin Support Shaft When the transfer wheels turn, the bin support racks are also moved up and down via the middle gears and the bin support pinion gears. The bin support racks are engaged with the bin support shaft that is at the bottom and all the bins are seated on this bin support shaft.
  • Page 239 5.4 TRANSFER WHEEL MECHANISM The transfer wheel has three pairs of blocks (6 blocks in total). Each pair of blocks makes one slot and deals with one bin at a time. The blocks are moved in and out by the ridges around the transfer wheel shaft. B1 = OUT B1 = OUT B2 = IN...
  • Page 240 Ridge D Ridge E [Figure 6] [Figure 5] Figures 2 to 6 show the relationship between the ridges, the blocks B1 and B2, the bin guide, and the bin’s pin, corresponding to the rotation of the transfer wheel through the 5 sections. When moving the bins up, B1 is in and B2 is out while the transfer wheel is catching the bin’s pin at the bin inlet [X] (sections E and A).

  • Page 241: Replacement

    6. REPLACEMENT 6.1 BIN REPLACEMENT Top Cover Rear Cover Front Cover 1. Remove the sorter from the copier. 2. Remove the front cover (1 screw) and the rear cover (2 screws). 3. Lift off the top cover. Safety Lever Support Shaft Rear Bracket Stopper Collar Transfer...
  • Page 242 Safety Lever Support Shaft Front Bracket Stopper Collar Transfer Wheel Drive Gear Bin Support Rack Middle Gear Bin Support [Front Side] Pinion Gear 4. Remove the bin drive motor assembly (3 screws). 5. Remove the rear bracket (4 screws). 6. Remove the front bracket (5 screws). 7.
  • Page 243 AUTOMATIC DOCUMENT FEEDER (ADF) – DF42 –...
  • Page 244 CONTENTS 1. ADF EXTERIOR ........... 2 2. INSTALLATION PROCEDURE......3 3. SPECIFICATIONS ..........6 4. MECHANICAL COMPONENT LAYOUT ....7 5. ELECTRICAL COMPONENT LAYOUT ....8 6. FUNCTIONAL OPERATION ........ 9 7. REPLACEMENT...........13 - 1 -...

  • Page 245: Adf Exterior

    1. ADF EXTERIOR 1. Original Table Place the originals to be fed into the ADF here. 2. Original Guides Adjust these guides to center the originals so that they are correctly fed onto the exposure glass. 3. Original Stacker Originals are stacked here after they exit from the ADF. 4.

  • Page 246: Installation Procedure

    2. INSTALLATION PROCEDURE 2.1 ACCESSORY CHECK 1. ADF Control Board ..............1 piece 2. Philips Screw with Flat Washer - M4 x 12 ......2 pieces 3. Electric Screw - M4 x 8 ............1 piece 4. Plastic Cap................1 piece 5.
  • Page 247 2.2 INSTALLATION PROCEDURE • Make sure that main switch is turned off. 1. Remove the platen cover, 2 stud screws for the platen cover, and 2 screws fixing the top cover at the rear side. 2. Remove 2 front screws fixing the top cover and secure 2 stud screws for the magnet catch [A].
  • Page 248 2.3 OPERATION CHECK 1. Turn on the main switch and confirm that the insert original indicator ( ) lights. 2. Wait for the ready condition. NOTE: It takes about 2 minutes. 3. Square a stack of originals and insert the originals until the insert original indicator goes out.

  • Page 249: Specifications

    3. SPECIFICATIONS Original Size and Weight: B5 ~ A3 (weight: 52 ~ 105 g/m Original Table Capacity: 30 sheets/A4, 15 sheets/A3 (70 g/m Copy Speed (1 to 1): 17 copies/minute for A4 Original Set: Face up, first sheet on top. Original Separation: Separation Roller and Separation Belt Original Set Position:...

  • Page 250: Mechanical Component Layout

    4. MECHANICAL COMPONENT LAYOUT 1. Original Table 8. Transport Belt Drive Roller 2. Feed-out Roller 9. Feed Roller 3. (Feed-out Sensor) 10. Registration Roller 4. Exit Transport Roller 11. (Registration Sensor) 5. Transport Belt 12. Separation Belt 6. Belt Support Roller 13.

  • Page 251: Electrical Component Layout

    5. ELECTRICAL COMPONENT LAYOUT 1. Indicator Panel 6. Pick-up Roller Position Sensor 2. ADF Motor 7. Original Set Sensor 3. ADF Position Sensor 8. Registration Sensor 4. Feed-out Sensor 9. Pulse Generator Sensor 5. Feed-in Clutch - 8 -...

  • Page 252: Functional Operation

    6. FUNCTIONAL OPERATION 6.1 SUMMARY When an original is inserted face-up into the ADF, the insert original indicator goes off. When the Start key is pressed, the pick-up roller starts turning and advances the bottom original of the stack. The feed roller and the friction belt are used to feed-in and separate the originals. Only the bottom original is fed because the friction belt prevents any other originals from feeding.
  • Page 253 6.2.2 Original Separation The feed roller and the friction belt separater the originals. The friction pad prevents the uppermost original from being fed in. Friction Pad Original Set Sensor Spring Plate Friction Belt Registration Pick-up Roller Position Sensor Sensor Registration Roller Feed Roller Transport Belt...
  • Page 254 6.3 ORIGINAL TRANSPORTATION MECHANISM The transport belt is directly driven by the motor’s worm-gear. The registration rollers feed the original to the transport belt until slightly after the original trailing edge passes the registration sensor. Then the motor pauses and reverses for a few pulses.
  • Page 255 6.7 ADF CONTROL BOARD 1. LED LED1 - When the ADF is lifted, LED1 lights. LED2 - When the registration sensor is DPS2 activated, LED2 lights. LED3 - When the feed-out sensor is activated, DPS1 LED3 lights. LED3 LED2 LED1 2.

  • Page 256: Replacement

    7. REPLACEMENT 7.1 SEPARATION BELT REPLACEMENT Separation Belt Tension Springs Tension Bar Belt Guide Separation Belt Assembly 1. Remove the feed-in cover (3 screws). 2. Remove the separation belt assembly (2 screws). 3. Remove the 2 tension springs and the tension bar. 4.

  • Page 257: Transport Belt Replacement

    7.2 TRANSPORT BELT REPLACEMENT Feed-in Cover Original Table Feed-out Cover Handle Cover Transport Belt Drive Roller Bearing Transport Belt Bearing Transport Gear Belt Support Roller Plastic Bushing Front Transport Bracket Holder Hook 1. Remove the original table from the ADF by sliding it to the right. 2.

  • Page 258: Feed Roller Replacement

    7.3 FEED ROLLER REPLACEMENT Feed Roller Bearing Transport Belt Drive Roller Bushing Bearing Transport Gear Registration Idle Roller ADF Main Cover Bushing Tie-wrap Registration Idle Roller Front Side Plate Feed-in Clutch 1. Remove the original table from the ADF by sliding it to the right. 2.
  • Page 259 7.4 PICK-UP ROLLER REPLACEMENT Pick-up Roller Assembly Plastic Bushing Pick-up Roller ADF Main Cover 1. Perform steps 1 to 7 of the feed roller replacement. 2. Remove the pick-up roller assembly from the ADF main cover (2 screws). 3. Remove the plastic bushing from the pick-up roller shaft (1 E-ring). 4.

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