Ricoh FT2260 Service Manual

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FT2260

S E R V I C E

M A N U A L

RICOH COMPANY, LTD.

Table of Contents

Summary of Contents for Ricoh FT2260

Page 1 FT2260 S E R V I C E M A N U A L RICOH COMPANY, LTD.
Page 2: Table Of Contents
Table of Contents OVERALL MACHINE INFORMATION 1. SPECIFICATIONS........1-1 2. OPERATION PANEL ........1-4 2.1 KEYS AND LABELS .
Page 3 3.EXPOSURE 3.1 OVERVIEW ............2-8 3.2 EXPOSURE LAMP CONTROL ClRCUlT .
Page 4 5.7 BIAS ClRCUIT ........... . .2-35 5.8 TONER END SENSOR ClRCUlT .
Page 5 10.4 FUSING LAMP CIRCUIT ..........2-64 10.5 EXIT SENSOR CIRCUIT .
Page 6 5.1 TEST POINTS .............4-6 5.1.1 Main PCB .
Page 7 1.1.7Upper Rear Cover ..........5-2 1.1.8 Copy Tray .
Page 8 4.8 PAPER SIZE SWITCH REPLACEMENT .........5-29 4.9 PAPER END SENSOR REPLACEMENT.........5-30 4.10 PAPER WIDTH SENSOR REPLACEMENT.
Page 9 TROUBLESHOOTING 1. COPY QUALITY ......... . . 6 - 1 1.1 UNEVEN IMAGE DENSITY .
Page 10 DOCUMENT FEEDER 1. SPECIFICATIONS ........8-1 2.
Page 11 14.1.7 Feed-in Solenoid Adjustment........8-40 14.1.8 Friction Belt Replacement ........8-41 14.2 FEED-OUT UNIT .
Page 12 17. SORTER TIMING CHART 9-28 VINYL ENVELOPE POINT-TO-POINT ELECTRICAL COMPONENT AND CONNECTOR LAYOUT - COPIER ELECTRICAL COMPONENT AND CONNECTOR LAYOUT-DF ELECTRICAL COMPONENT AND CONNECTOR LAYOUT-SORTER TABLE OF ADJUSTMENTS SERVICE TABLES...
Page 13: Overall Machine Information
SECTION 1 OVERALL MACHINE INFORMATION...
Page 14: Specifications
1 August 988 SPECIFICATIONS Configuration: Desktop Mono-component dry toner process Copy Process: Book/sheet Originals: Maximum Original Size: A3, (11" 17") Maximum: A3, 11" x 17" Copy Paper Size: Minimum: A6, 8½" x 5½" Cassette Feed: 52 to 105 g/m Copy Paper Weight: 14 to 28 lb Paper Tray Feed: 52 to 157 g/m 14 to 42 lb...
Page 15 1 August 1988 Automatic Reset: After 60 seconds - Copy Counter: - Image Density: Auto ID – Book Mode: Full size – Reproduction Ratio: – Interrupt Mode: Photoconductor: Organic photoconductor (Master) Master Charge: Single-wire with grid plate (Negative Charge) Exposure System: Slit exposure, fixed platen Halogen Lamp : 97V,300W(115V)
Page 16 1 August 1988 Image Fusing: Heat and pressure type, teflon and silicone rubber rollers Fusing Lamp: Halogen lamp, 960 W Copy Tray Capacity: sheets 21 codes, indicated in the magnification Self-diagnostic Codes: ratio display Power Source: 115V/60Hz: 220V, 240V/50Hz: 6A 220V/60Hz: Power Consumption: Maximum: 1.4 kW...
Page 17: Operation Panel
1 August 1988 2. OPERATION PANEL 2.1 KEYS AND LABELS VERSION - A4/A3 1. Magnification Ratio Plate Clear/Stop Key Shows the standard reproduction Press to cancel the copy number ratios. entered. While copying, press to stop copy operation. Number Keys Auto Image Density Key The number keys are used to enter the desired number of copies.
Page 18 1 August 1988 - LT/LDG version - Original Image Size Indicator 11. Enlarge Key Lights to show when to enter the Press to make enlarged copies. original size when in size magnifica- Reduce Key tion mode. Press to make reduced copies. 18 Series Copies Key 13.
Page 19: Indicator Screen
1 August 1988 2.2 INDICATOR SCREEN A4/A3 version - 1. Magnification Ratio Indicator 6. Load Paper Indicator Shows the selected reproduction Lights when either no paper is in the ratio and the data for the size mag- cassette or the cassette is not nification mode.
Page 20 1 August 1988 - LT/LDG version - Check Paper Path Indicator 14. Copy Counter Lights when there is a paper misfeed Shows the number of copies within the copier. entered. While copying, this counter shows the number of copies made. 10.
Page 21: Copy Process
1 August 1988 3. COPY PROCESS 1. Charge In the dark the charge corona unit applies a negative charge to the master. The grid plate ensures the charge is applied uniformly. The charge remains on the surface of the master because the photoconductive master has a high electrical resistance in the dark.
Page 22 1 August 1988 4. Development A thin layer of positively charged toner on the development roller comes in contact with the latent image on the master surface. Toner particles are electrostatically attracted to the negatively charged areas of the master sur- face.
Page 24: Copy Cycle
1 August 1988 5. COPY CYCLE NOTE: This section describes a single A4/letter copy cycle. The details of timing events for multiple copy cycles or different paper sizes may vary. See the timing charts for details. The copy cycle has two phases. The first phase begins when the Start key is pressed.
Page 25 1 August 1988 The second phase of the copy cycle begins the next time the master sensor detects the sensor plate on the master belt. At this time, the LEDs of the erase lamp unit [A] all turn on for leading edge erase, and the pulse count is reset to 0.
Page 26 1 August 1988 About 182 pulses after the leading edge of the latent image passes the erase lamp position (exact timing depends on DIP switch setting), the registration solenoid turns on and the relay feed solenoid turns off. Paper then starts feeding to the image transfer section [A].
Page 27 1 August 1988 At the 355th pulse the charge corona [A] turns off. About this time the paper enters the fusing unit [B]. Slightly after that at about the 401st pulse, the trail- ing edge of the paper passes the registration sensor [C]. The registration solenoid turns off 17 pulses later.
Page 28: Mechanical Component Layout
1 August 1988 6. MECHANICAL COMPONENT LAYOUT 1. Third Mirror 11. Toner Cartridge 21. Registration Rollers 2. Second Mirror 12. Toner Mixing Bar 22. Cleaning Blade 3. First Mirror 13. Tray Feed Roller 23. Used Toner Tank 4. Exposure Lamp 14.
Page 29: Drive Layout
1 August 1988 7. DRIVE LAYOUT P3: Scanner Drive Pulley Gears: Cassette Feed Roller Gear Drive Gear G17: Relay Roller Drive Gear P5: Second Scanner Pulley G2: Drive Relay Gears P6: Idle Pulley G3: Main Motor Gear P7: Idle Pulley P8: idle Pulley G5: Idle Gears G6: Exit Roller Gear...
Page 30: Electrical Component Layout
1 August 1988 8. ELECTRICAL COMPONENT LAYOUT 8.1 UPPER UNIT 1. Total counter 10. AC drive board 19. Inlet cooling fan 11. Main motor 2. Exposure lamp Erase lamp unit/master sensor 3. Optics anti-condensation 12. Scanner drive motor heater 21. Operation panel board 13.
Page 31: Lower Unit
1 August 1988 8.2 LOWER UNIT Exit sensor 36. Anti-condensation heater 45. Paper width sensor 2 28. Thermistor 37. Registration solenoid 46. Paper width sensor 3 29. Fusing lamp 38. Relay feed solenoid 47. Paper length seneor 30. Thermofuse 39. Cassette feed solenoid 48.
Page 32: Electrical Component Descriptions
1 August 1988 9. ELECTRICAL COMPONENT DESCRIPTIONS SYMBOL NAME FUNCTION LOCATION Motors Main Motor Drives all main unit components except for lens, optics, fans and blowers. (100 Vat) Scanner Drive Drives the scanner. (dc setvomotor) Motor Lens Drive Motor Positions the lens. (dc stepper motor) Mirror Drive Motor Positions the 4th and 5th mirrors.
Page 33 1 August 1988 NAME FUNCTION LOCATION SYMBOL Sensors continued Lens Home Posi- Detects when the lens is at the full size tion Sensor position. Mirror Home Posi- Detects when the 4th and 5th mirrors are at tion Sensor the full size position. Toner End Sensor Detects when it is time to add toner.
Page 34 1 August 1988 LOCATION FUNCTION SYMBOL NAME Lamps Quenching Lamp Neutralizes any charge remaining on the master surface after cleaning. Erase Lamp Unit Discharges the master’s charge outside of the image area. Provides lead/trail edge erase and side erase. Provides light to reflect the original’s image Exposure Lamp onto the master.
Page 35: Overall Machine Control
1 August 1988 10. OVERALL MACHINE CONTROL The above diagram shows the control system of the copier in block form. Copier operation is controlled by two CPUs –the main CPU on PCB4 and the optics CPU on PCB2. The CPUs communicate through a serial interface. The optics CPU controls the three optics drive motors, and receives input from the three optics home position sensors.
Page 36: Ac Power Distribution
1 AUGUST 1988 AC POWER DISTRIBUTION When the machine is first plugged in, ac voltage passes through the noise fil- ter and safety switch to the main switch. With the main switch in the off posi- tion, ac voltage is applied to the two anti-condensation heaters. When the main switch is turned on, ac voltage is removed from the anti-con- densation heaters.
Page 37: Dc Power Distribution
1 August 1988 12. DC POWER DISTRIBUTION This copier uses two dc power levels: +5 volts and +24 volts. The ac power from the wall outlet is stepped down by a transformer to 31 volts ac, which then powers the dc power supply board. The 31 volt ac input is rectified by a diode bridge full-wave rectifier.
Page 38: Detailed Section Descriptions
SECTION 2 DETAILED SECTION DESCRIPTIONS...
Page 39: Master Unit
1 August 1988 1. MASTER UNIT OVERVIEW The master unit consists of the master belt [A], the grid plate [B], and the cleaning section [C]. The master is an organic-photoconductive belt. During a multicopy run, the master belt makes one revolution per A4 / 11" x copy or two revolutions 8½"...
Page 40: Master Sensor
1 August 1988 1.2 MASTER SENSOR Themastersensor [A] is installed on the operator end of the erase lamp unit [B] . The master sensor detects a reflective plate (called the sensor plate [C]) on the edge of the master belt [D] once every master rotation. This tells the CPU the location of the bond-seam [E].
Page 41: Master Sensor Circuit
1 August 1988 1.3 MASTER SENSOR CIRCUIT Main Board [PCB4] The main board applies + 5 volts from CN103-7 to power the master sensor. To determine whether or not the phototransistor is on, a 5-volt pulse is sup- plied to CN103-3. When the sensor plate [A] on the master belt [B] is not under the sensor, the phototransistor is off.
Page 42 1 August 1988 DRIVE MECHANISM The main motor [A] supplies drive to the master belt through a series of gears [B] and a timing belt [C]. Drive is controlled by the master clutch [D]. When the master solenoid [E] is energized, the solenoid pawl engages the clutch sleeve and the drive of the main motor is not transmitted to the master unit.
Page 43: Master Solenoid Circuit
1 August 1988 1.5 MASTER SOLENOID CIRCUIT Main Board [PCB 4] Optics Board [PCB 2] The master solenoid is powered by +24 volts from CN105-9 of the main board. To turn on the master solenoid, the optics board drops CN707-1 to ground.
Page 44: Charge
1 August 1988 CHARGE 2.1 OVERVIEW This model uses a single wire corona unit [A] to charge the master [B] (or- ganic photoconductor belt). The corona wire [C] generates a corona of negative ions when a high negative voltage is applied to it by the charge power pack [P1].
Page 45: Charge Corona Clrcult
1 August 1988 2.2 CHARGE CORONA CIRCUIT DC Power Supply [PCB6] Charge Power Pack [P1] The dc power volts to CN22-1 of the charge supply board supplies +24 power pack as the power supply source. On the 9th pulse after the sensor plate of the master belt is detected, the CPU drops CN107-1 from +24 volts to 0 volt.
Page 46: Exposure
1 August 1988 3. EXPOSURE 3.1 OVERVIEW During the copy cycle, an image of the original is reflected onto the master belt surface via the optics assembly as follows. Light Path: The inlet cooling fan [J] draws cool air into the optics cavity. The air flows from the right to the left in the optics cavity and exhausts through the vents in the upper cover.
Page 47: Exposure Lamp Control Clrcult
1 August 1988 3.2 EXPOSURE LAMP CONTROL CIRCUIT Main Board [PCB4] AC Drive Board [PCB1 ] The main board sends lamp trigger pulses to the ac drive board from CN105- 6. PC401 activates TRC401, which provides ac power to the exposure lamp, at the trailing edge of each trigger pulse.
Page 48 1 August 1988 Lamp Voltage Compensation - Compensation processing consists of changing the timing of the exposure lamp trigger in response to the feedback voltage. If the lamp voltage is too low, the CPU sends the trigger pulses earlier so that more ac power is applied to the exposure lamp.
Page 49: Scanner Drive Mechanism
1 August 1988 33 SCANNER DRIVE MECHANISM This model uses a dc servomotor [A] to drive the scanners. The first scanner [B], which consists of the exposure lamp [C] and the first mirror [D], is connected to the scanner drive wire by the wire clamp [E]. The second scanner [F], which consists of the second and third mirrors, is con- nected to the scanner drive wire by a movable pulley (the second scanner pulley [G]).
Page 50: Scanner Drive Circuit
1 August 1988 3.4 SCANNER DRIVE CIRCUIT Main Board [PCB4] Optics Board [PCB2] A dc servomotor is used as the scanner drive motor. The optics CPU con- trols the speed of the servomotor. The main CPU and the optics CPU com- municate through a serial interface.
Page 51: Lens Drive Mechanism
1 August 1988 3.5 LENS DRIVE MECHANISM [M3] The lens drive motor [M3], which is a stepper motor, changes the position of the lens [A] in accordance with the selected reproduction ratio to provide the proper optical distance between the original and the lens. When the lens drive motor is energized, rotation is transmitted to the lens unit through a drive wire [B], which is hooked to the lens unit drive clamp [C].
Page 52: Light Shading Mechanism
1 August 1988 3.6 LIGHT SHADING MECHANISM Rear View The intensity of the light striking the master belt during exposure tends to crease toward the edges when the reproduction ratio is decreased. This is because the reflected light is focused through the lens. For this reason, a light shading mechanism has been installed to prevent uneven illumination when making reduced copies.
Page 53: Mirror Drive Mechanism
1 August 1988 3.7 MIRROR DRIVE MECHANISM To provide the proper optical distance between the lens and the master belt for the various reproduction ratios, this model uses a stepper motor [A] to move the mirror assembly [B]. This motor (the mirror drive motor) turns an idle gear [C] which turns the mirror drive pulley [D].
Page 54: Stepper Motor Control
1 August 1988 3.8 STEPPER MOTOR CONTROL Optics Board [PCB2] Both the lens drive motor [M3] and the mirror drive motor [M4] are stepper motors. The stators of these stepper motor have four coils (labeled A,B,A and B above), and the rotor is made of permanent magnets. The four coils are energized by pulse signals as shown in the above illustration.
Page 55: Automatic Image Density Control
1 August 1988 3.9 AUTOMATIC IMAGE DENSITY CONTROL Light from the exposure lamp is reflected from the original and travels to the lens [A] via mirrors. The auto ID sensor [B], which is a photodiode, is mounted on the upper front frame. The sensor cover [C] has hole in it to allow light to fall directly onto the auto image density sensor.
Page 56: Auto Id Exposure Correction
1 August 1988 3.10 AUTO ID EXPOSURE CORRECTION When in automatic ID control mode, the CPU uses the manual ID mode’s central value (level 3) as the base value This is the voltage that is applied to the exposure lamp if the auto ID sensor detects pure white paper. As shown in the above chart, the exposure level (light intensity) is increased in steps as the original image density becomes darker.
Page 57: Reduction/Enlargement Exposure Correction
1 August 1988 REDUCTION/ENLARGEMENT EXPOSURE CORRECTION 3.11 For the reduction and enlargement reproduction ratios the light path is longer than for the full size reproduction ratio. For this reason, the strength of the exposure lamp output is increased when reduction or enlargement is selected.
Page 58 1 August 1988 3.12 SERVICE CALL CONDITIONS Service Code E12 Service code El 2 lights if the feedback signal becomes higher than 4.2 volts or less than 0.5 volt when the exposure lamp is on. It will also light if the feed- back signal becomes higher than 1 volt when the exposure lamp should be off .
Page 59 1 August 1988 Service Code E2A (optics board check) Code E2A lights if the mirror home position sensor does not change from LOW to HIGH within 3.5 seconds when the mirrors move to the home position from the reduction/enlargement side. Service Code E2B (optics board check) Code E2B lights if the mirror home position sensor does not change from HIGH to LOW within 3.5 seconds when the mirror assembly leaves the home...
Page 60: Erase
1 August 1988 ERASE 4.1 OVERVIEW Front View [A] : Charged Area [B] : Charge Corona Unit [C] : Exposure The erase lamp unit [D] consists of a row of LEDs extending across the full width of the master belt [E]. After the moving master belt is exposed, the latent image passes under the erase lamp.
Page 61: Leading And Trailing Edge Erase
1 August 1988 4.2 LEADING AND TRAILING EDGE ERASE [C]: Leading Edge Erase [D]: Side Erase [E]: Trailing Edge Erase In the above illustration, the outer rectangle represents the entire image area. The inner shaded rectangle shows the image area remaining after leading edge and side erase.
Page 62: Side Erase
1 August 1988 4.3 SIDE ERASE The LEDs of the erase lamp unit turn onto remove the charge on the master. Based on copy paper size and the reproduction ratio, the LEDs turn on in blocks (labeled a - p above). The side reflectors [A] on the first scanner also perform side edge erase.
Page 63 1 August 1988 The following table shows which LEDs of the erase lamp are turned on for each reproduction ratio. Blocks On Paper Size Reproduction Ratio (%) None A3, A4 sideways 99-200 11" x 17", 11" x 8½" 9 6 - 9 8 10½"...
Page 64: Erase Lamp Circuit
1 August 1988 ERASE LAMP CIRCUIT This copier uses two shift registers (IC101 and IC102) to drive the erase lamp unit. Erase lamp data is input one bit at a time through CN103-4. At each clock pulse from CN103-6 the data in the shift registers shifts one step to the left.
Page 65: Development
1 August 1988 DEVELOPMENT 5.1 BLACK DEVELOPMENT View 5.1.1 Introduction The development unit transforms the electric latent image on the master sur- face into a visible toner image. The toner supply bar [A] carries toner from the toner tank to the development roller [B].
Page 66: Development Roller
1 August 1988 5.1.3 Development Roller The development roller used in this copier has two layers. At the core there is a conductive layer [A] to which the development bias is applied. Around that, there is a magnetic rubber layer [B], which has closely spaced, alternating north and south magnetic poles.
Page 67: Color Development
1 August 1988 5.2 COLOR DEVELOPMENT [C]: Master Belt [D]: Toner Metering Blade [E]: Toner Mixing Bar [F] : Toner Cartridge 5.2.1 Color Toner The major difference between color development and black ferrite develop- ment is that colored toner contains no ferrite material. Colored toner adheres to the development roller because of electrostatic force rather than magnetic force.
Page 68: Color Development Roller
1 August 1988 Development roller [F] : Magnetic Rubber Layer [G] : Conductor [H] : Toner Supply Roller 5.2.3 Color Development Roller Unlike the black toner development roller, the color development roller has an insulating layer over the magnetic rubber layer. Floating electrodes [A] are embedded in the insulating layer [B].
Page 69: Bias
1 August 1988 5.3 BIAS 5.3.1 Black Development The development bias (which is fixed at –225 volts) is applied to the toner metering blade [A], to the bias brush [B], and to the core of the development roller [C] by the trans- fer/bias power pack [P2].
Page 70: Drive Mechanism
1 August 1988 DRIVE MECHANISM Color Development The master/development drive gear [A] drives the development unit as well as the master. This means that the development rotation is also controlled by the master solenoid. Toner supply bar [B] in the black and the toner supply roller [C] in the color development unit rotate in the same direction, but the gear ratio is different.
Page 71: Toner End Mechanism
1 August 1988 5.5 TONER END MECHANISM Insufficient Condition Sufficient Condition The toner end detection mechanism uses an actuator [A] and a photointer- rupter (the toner end sensor [B]). When the toner tank contains enough toner, the actuator stays in the photointerrupter. When the toner tank con- tains an insufficient amount of toner, the actuator leaves the photointerrupter every revolution of the toner agitator gear.
Page 72: Development Cover Mechanism
1 August 1988 DEVELOPMENT COVER MECHANISM When the development unit is in the copier, the cover spring [A] rotates the development cover lever clockwise as shown by the white arrow. The sector gear [B] on the cover lever [C] turns the cover gear, opening the develop- ment roller cover [D].
Page 73: Bias Clrcuit
1 August 1988 5.7 BIAS CIRCUIT The above diagram shows the bias control circuit in block form The dc power supply board [PCB6] supplies +24 volts to CN18-1 of the transfer/bias power pack [P2]. The de/de converter changes this input to the high voltage used for development bias.
Page 74: Toner End Sensor Clrcult
1 August 1988 5.8 TONER END SENSOR CIRCUIT The optics CPU monitors the toner end sensor to determine whether a toner end condition exists. If CN707-5 drops to LOW three or more times during a 5-second period, the optics CPU signals the main CPU over the serial inter- face.
Page 75: Transfer And Image Separation
1 August 1988 TRANSFER AND SEPARATION 6.1 OVERVIEW The registration rollers [A] feed the copy paper [B] through the transfer entrance guides [C] to the transfer section. A high negative voltage is applied to the transfer corona wire [D], and as a result the corona wire generates a cloud of negative ions.
Page 76: Transfer Corona Circuit
1 August 1988 6.2 TRANSFER CORONA CIRCUIT The above diagram shows the transfer corona control circuit in block form. The dc power supply board [PCB6] supplies +24 volts to CN18-1 of the transfer/bias power pack [P2]. The de/de converter changes this input to the high voltage used by the transfer corona.
Page 77: Cleaning
1 August 1988 CLEANING 7.1 OVERVIEW After image transfer, the master [A] moves past the cleaning section. There, the cleaning blade [B] wipes off any toner remaining on the master surface. The toner that drops off the master surface is then moved into the used toner tank [C] by the toner sweeping bar [D].
Page 78: Toner Overflow Detection
1 August 1988 7.2 TONER OVERFLOW DETECTION The toner overflow sensor [A] consists of two photointerrupters. The lower photointerrupter is for the near overflow detection and the upper is for over- flow detection. As used toner piles up, the sensor actuator [B] is raised. The actuator ac- tuates the lower photointerrupter first, and after more toner is added, it ac- tuates the upper photointerrupter.
Page 79: Toner Overflow Detection Circuit
1 August 1988 TONER OVERFLOW DETECTION CIRCUIT Optics Board [PCB2] Toner Overflow Sensor [S3] P: Photoreceiver S: Schmitt Trigger Circuit The optics CPU applies 5 volts to CN31 -3 and CN31 -2 to monitor the near overflow and overflow conditions. When one of the photointerrupters is not blocked, its transistor turns on.
Page 80: Quenching
1 August 1988 QUENCHING 8.1 OVERVIEW After the master belt moves past the cleaning unit [A], the quenching lamp [B] illuminates the master surface. This illumination is to neutralize any latent image charge from the previous copy cycle and prepare the master surface for the next copy cycle.
Page 81: Quenching Lamp Clrcult
1 August 1988 QUENCHING LAMP CIRCUIT Quenching Lamp [L1] Main Board [PCB] To light the quenching lamp, the CPU drops CN105-8 to LOW. This occurs at the same time that the master belt starts rotating. CN105-8 goes HIGH, to turn off the quenching lamp, at the same time that the master belt stops rotat- ing.
Page 82: Paper Feed And Registration
1 August 1988 PAPER FEED AND REGISTRATION 9.1 OVERVIEW Paper feeds automatically either from the paper cassette [A] or the paper tray [B] . Paper Tray Feed The capacity of the paper tray is 100 sheets (depending on paper thickness). The pick-up roller [C] drops down onto the top sheet of paper.
Page 83: Cassette Feed
1988 1 August 9.2 CASSETTE FEED 9.2.1 Paper Feed System The cassette uses a feed roller and friction pad paper feed system. When the feed roller [A] starts turn- ing, it forces a single sheet of paper across the friction pad [B]. The relay roller [C] takes over paper feed when the paper reaches it.
Page 84: Cassette Feed Drive Mechanism
1 August 1988 Cassette Feed Drive Mechanism 9.2.2 The main motor transmits rotation to the engage gear [A] through the drive relay gear [B] mounted on the upper clamshell. Drive is transmitted to the registration roller gear [C], through a series of idle gears [D], to the relay roller gear [E], then finally to the paper feed roller gear [F] (through an idle gear).
Page 85: Cassette Tray Mechanism
1 August 1988 9.2.3 Cassette Tray Mechanism To slide the cassette tray out of the copier. the release lever [A] must be pushed down until it locks (black arrow direction). When the release lever is lowered, the cassette lift arm [B] and the friction pad [C] are also lowered (black arrow direction).
Page 86: Paper Tray Feed
1 August 1988 9.3 PAPER TRAY FEED 9.3.1 Paper Tray Mechanism Up to 100 sheets of standard copy paper can be loaded on the paper tray. Paper of unusual size or weight can be fed from this tray. Also, the OHP transparency lever [A] allows copying on OHP transparencies by reducing friction pad pressure.
Page 87 1 August 1988 Rear View When the paper tray is lifted, the paper tray sensor deactivates and lights the Wait indicator and Lift Paper Tray indicator. This disables the copier. At the same time, the center fence lever [H] forces the center fence [I] to swing up by pushing the center fence arm [J].
Page 88: Paper Tray Feed Rollers
1 August 1988 9.3.2 Paper Tray Feed Rollers When the Start key is pressed, the tray feed roller [A] and the pick-up roller [B] start turning. At the same time, the center fence [C] drops down to allow the paper [D] to pass, and the pick-up roller drops onto the paper.
Page 89: Tray Feed Drive Mechanism
1 August 1988 9.3.3 Tray Feed Drive Mechanism The above illustration shows the drive mechanism of the paper feed tray. Main motor rotation is transmitted to the relay roller gear [A] through a series of idle gears. (See the drive layout.) The rotation of the relay roller gear is transmitted to the tray feed roller gear [B], the sector gear [C], and the center fence gear [D] through two idle gears [E] and the pick-up clutch cam [F].
Page 90: Pick-Up Clutch Mechanism
1 August 1988 9.3.4 Pick-up Clutch Mechanism the paper tray feed mode, when the Start key is pressed, the tray feed gear starts rotating and the tray feed solenoid [A] is energized. As the tray feed solenoid is energized, the tray feed pawl [B] is moved away from the tray feed clutch [C].
Page 91 1 August 1988 After the pick-up clutch cam [A] rotates 180 degrees counterclock- wise the sector gear starts rotating clockwise due to the shape of the pick-up clutch cam. This causes the pick-up roller to rise and the center fence to swing up. When the pick-up clutch cam has rotated about 350 degrees, it stops rotating because the cam stopper...
Page 92: Relay Feed And Reglstration
1 August 1988 RELAY FEED AND REGISTRATION Front View The relay rollers [A] take over paper drive from the cassette paper feed roller or tray paper feed roller and drive the paper to the registration rollers [B]. The registration rollers stop rotating before the paper contacts them, but the relay rollers continue rotating until the paper has contacted the registration rollers and buckled the paper to correct skew.
Page 93: Paper Size Detection
1 August 1988 9.5 PAPER SIZE DETECTION Cassette 9.5.1 Tray Front View [D] : Paper Stack [E] : Cassette Tray This copier uses a set of five push switches (N/O) to monitor the size of the paper in the cassette. The rear side of the cassette has five slots [A] for paper size ac- tuators.
Page 94: Cassette Paper Size Detection Circuit
1 August 1988 Cassette Paper Size Detection Circuit 9.5.2 Paper Size Main Board (PCB4) Switches (SW3) The CPU sends a 5-volt pulse to each of the five paper size switches. When a paper size actuator closes one of the paper size switches, the 5-volt pulse drops to 0 volts.
Page 95: Paper Tray
1 August 1988 This copier has four sensors to monitor the size of the paper in the paper tray. Three of these sensors are paper width sensors [A]. When the side fence is adjusted according to paper width, the lifter on the side fence [B] pushes the appropriate actuator [C] into its sensor.
Page 96: Tray Paper Size Detection Circuit
1 August 1988 Tray Paper Size Detection Circuit 9.5.4 Main Board (PCB4) The CPU sends 5-volt pulses to each of the paper size sensors. When the paper size sensors are actuated (blocked), the photosensors are interrupted; thus, the signal lines are no longer connected to ground via the photosensors and the 5-volt pulse is present at the respective main board connector.
Page 97: Paper Feed Control Circult
1 August 1988 9.6 PAPER FEED CONTROL CIRCUIT DC Power supply [PCB6] The dc power supply board supplies +24 volts to the solenoids and + 5 volts to the sensors for the paper feed system. The main board controls the func- tions of the components shown in the diagram above through the dc power supply board.
Page 98: Image Fusing
1 August 1988 10. IMAGE FUSING 10.1 OVERVIEW Front View After the image is transferred, the copy paper enters the fusing unit. There the image is fused to the copy paper by the process of heat and pressure through the use of a hot roller [A] and pressure roller [B]. The fusing lamp [C] located inside the hot roller, is turned on and off to main- tain the operating temperature of 185 degrees Celsius.
Page 99: Drive Mechanism
1 August 1988 10.2 DRIVE MECHANISM The main motor [A] drives the hot roller [B] and exit rollers [C] through a sys- tem of gears as shown above. The pressure roller [D] is friction driven by the rotation of the hot roller. Manually rotating the paper reverse knob [E] clockwise causes the hot roller to rotate.
Page 100: Fusing Control
1 August 1988 10.3 FUSING CONTROL Temp. 186°C 185°C Ready 125°C Room Temp. Fusing Lamp Off- When the main switch is turned on, the CPU sends the enable signal to the fusing control circuit. The fusing control circuit then applies full power to the fusing lamp.
Page 101 1 August 1988 After that, the enable signal is turned on constantly when the thermistor detects a temperature less than 185 degrees, and is turned off when the ther- mistor detects 186 degrees C. To summarize, the CPU controls the fusing lamp in the following ways: (1) Up to 125 degrees C: The fusing lamp stays continuously on.
Page 102: Fusing Lamp Circuit
1 August 1988 10.4 FUSING LAMP CIRCUIT Above is a schematic of the fusing lamp control circuit. The circuit has both ac and dc components, which are coupled through a photocoupler. The following discussion centers on circuit operation from the view point of the signals that can be observed between the main board and the ac drive board.
Page 103 1 August 1988 If the hot roller temperature reaches 210 degrees Celsius the resistance of the thermistor becomes approximately 600 ohms. At that point, pin 1 of lC114becomes HIGH, turning off Q-102 and preventing PC-301 from operat- ing. At the same time, the fusing relay turns off, cutting ac power to the fusing lamp.
Page 104: Exit Sensor Circuit
1 August 1988 10.5 EXIT SENSOR CIRCUIT Fusing Power Supply [PCB7] Main Board [PCB4] The main CPU sends 5 volt pulses from CN108-1. In the standby condition, CN108-1 is LOW. However, when the exit sensor [S9] is actuated (blocked), the phototransistor turns off and the +5 volt pulse appears at CN108-1. 2-66...
Page 105: Service Call Conditions
1 August 1988 10.6 SERVICE CALL CONDITIONS Service Code E52 Code E52 lights if the temperature detected by the thermistor does not reach 125 degrees C within 75 seconds after the main switch turns on. Service Code E53 Code E53 lights if the temperature detected by the thermistor becomes higher than 270 degrees C.
Page 106: Other Components
1 August 1988 11. OTHER COMPONENTS 11.1 SAFETY SWITCH [A]: Safety switch [B]: Front cover actuator [C]: Safety switch lever [D]: Upper clamshell actuator The safety switch is installed in series with and prior to the main switch. When this switch turns off, it cuts ac power, turning off all electrical components in the copier.
Page 107: Jam Sensing
1 August 1988 11.2 JAM SENSING The feed sensor, the registration sensor, and the exit sensor monitor the movement of the copy through the paper path. If the CPU determines that a jam exists, the Check Paper Path indicator or Check Paper Tray indicator turns on.
Page 108: Operation Panel Clrcult
1 August 1988 11.3 OPERATION PANEL CIRCUIT The above illustration shows the copier’s operation panel circuit in block form. The operation panel circuit is driven by eight scan pulse lines (SC1 to SC8). The copier uses LEDs for display elements. To light any particular LED, the CPU drops the appropriate segment line to O volts at the same time that the scan line connected to the LED is being energized.
Page 109: Pulse Generator
1 August 1988 11.4 PULSE GENERATOR Main Board [PCB 4] The copier’s CPU controls the timing of all machine operations based on the number of pulses it receives from the pulse generator. Pulses are generated by the rotation of a perforated disk within a photocoupler. As the disk rotates, light from the LED activates the phototransistor each time a hole comes be- tween them.
Page 110: Data Back-Up
1 August 1988 11.6 DATA BACK-UP This copier has a RAM (256 byte) for holding data (copy count, reproduction ratio, image density, paper tray or cassette mode, book mode and interrupt mode). The main board has a back-up circuit. In the case where a misfeed occurs in the copier and the front cover is opened to remove the misfed paper, the back-up system works to prevent any data from being lost due to power loss.
Page 111: Counter Clrcuits
1 August 1988 COUNTER CIRCUITS 11.7 Main Board [PCB 4] Optics Board [PCB 2] Total Counter: The total counter is powered by +24 volts from CN706-7 of the optics board. The main CPU energizes the total counter by dropping CN107-8 to LOW. The total counter is energized when the Start key is pressed.
Page 112 SECTION 3 INSTALLATION...
Page 113: Environment
1 August 1988 ENVIRONMENT Temperature Range: 10°C to 30°C (50°F to 86°F) Humidity Range: Ambient Illumination: Less than 1,500 Iux (do not expose to direct sunlight). Ventilation: Room air should turn over at least times/hour. Ambient Dust: Less than 0.15 mg/m (4x 10 oz/yd Room Size:...
Page 114: Minimum Space Requirements
1 August 1988 2. MINIMUM SPACE REQUIREMENTS 70 cm 1. Front: (27½") 12 cm (4 2. Back : 3/4") 70 cm 3. Right : (27½") 70 cm (27½") 4. Left:...
Page 115: Power Source
1 August 1988 3. POWER SOURCE 1. Input voltage level: 110 V/60 Hz : More than 12A 115 V/60 Hz : More than 12A 220 V/50 Hz: More than 6 A 220 V/60 Hz: More than 6 A 240 V/50 Hz : More than 6 A 2.
Page 116: Accessory Check
1 August 1988 4. ACCESSORY CHECK Check the accessories and their quantities according to the following list: 1. Cassette ............. . .2 pcs (3 pcs for the Asian version machine [One cassette is in the machine.]) 2.
Page 117: Installation Procedure
1 August 1988 5. INSTALLATION PROCEDURE 1. Remove the three strips of tape. 2. Open the platen cover and remove the two optics lock pins together with the tape. 3. Open the front cover and remove the two optics lock pins together with the tape.
Page 118 1 August 1988 5. Remove the roller cushion block. 6. Remove the toner tank cover and the two strips of tape. 7. Remove the three wedges from the new master unit. NOTE: Do not touch the master surface (purple material) and avoid exposing it to light.
Page 119 1 August 1988 9. Peel off the strip of tape and remove the polyester cover that protects the master. Push the master unit up until it locks in place. Remove the cushion block, the friction pad cover, and two strips of tape from the paper tray.
Page 120 1 August 1988 Shake the new cartridge of toner well. Set the pins [A] of the toner cartridge into the slots on the development unit, and turn the cartridge counterclockwise. To open the cartridge seal, in- sert the cartridge crank onto the shaft of the toner cartridge and turn it clockwise unit it stops.
Page 121 1 August 1988 18. Lower the cassette release lever [A] and pull out the cas- sette tray unit it stops. 19. Remove the strip of tape and the package of silica gel [B]. 20 Take out the cassette and the two cushion remove blocks [C].
Page 122 1 August 1988 Press down the corners of the paper stack so that they are underneath the corner sepa- rators. Set the cassette on the cas- sette tray. Push in the cassette tray until it stops. Slide the drawer tray to the position of the paper size.
Page 123 1 August 1988 26. Load paper into the paper tray. NOTE: The paper tray holds ap- proximately 100 sheets. Adjust the paper guides and the drawer tray so that they contact the paper stack firmly. Install the copy tray on the left side of the machine.
Page 124: Key Counter Holder Installation
1 August 1988 6. KEY COUNTER HOLDER INSTALLATION NOTE: Three types of counters are recommended for this copier (Ricoh, Hecon, and Hengstler key counters). Remove the upper right cover (4 screws), upper rear cover (2 screws), and the optics board (2 screws, 7 connectors).
Page 125: Cassette Modification
1 August 1988 7. CASSETTE MODIFICATION Remove the side fences [A] and the rear fence [B] (1 screw each). Reposition the fences to the desired paper size position. Insert the paper size actuators [C] in the proper slots on the front of the cassette.
Page 126: Transformer Conversion (220-240V)
1 August 1988 8. TRANSFORMER CONVERSION (220 -240 V) Open the top unit and remove the development unit. Swing up the upper feed guide [A] (1 screw). Remove the lower feed guide [B] (4 screws). Uncouple the 220 V connector [C] and couple the 240 V connector [D]. Remove the upper rear cover (2 screws).
Page 127: Preparation For Transportation
1 August 1988 9. PREPARATION FOR TRANSPORTATION CAUTION: The copier may be seriously damaged if it is moved without the following preparation. If the copier is installed with a DF and/or sorter, remove them first. NOTE: (See the DF and/or Sorter Installation Procedure.) 9.1 SHORT HAUL TRANSPORTATION Remove the copy tray and paper tray.
Page 128: Long Haul Transportation By Vehicle
1 August 1988 9.2 LONG HAUL TRANSPORTATION BY VEHICLE NOTE: Confirm that the scanner is in the home position, and the copier is in the 100% reproduction mode before continuing this procedure. 1. Remove the copy tray and paper tray. Remove the cassette tray.
Page 129: Service Tables
SECTION 4 SERVICE TABLES...
Page 131: Maintenance Table
1 August 1988 MAINTENANCE TABLE NOTE: At a service call, perform the following: If this is not done, problems concerning copy quality and/or mechanical operation will occur. Also, some parts may become prematurely damaged. MATERIAL TO BE USED SECTION ITEM TO BE CLEANED 1.
Page 132 1 August 1988 SECTION ITEM TO BE CLEANED MATERIAL TO BE USED Fusing 1. Hot Roller Strippers Soft Cloth (Water) 2. Thermistor Soft Cloth (Alcohol) 3. Paper Guide Plates Soft Cloth (Water) 1. Charge Corona Wire Corona Corona Wire Cleaner or Blower Brush 2.
Page 133: Lubrication Table
1 August 1988 3. LUBRICATION TABLE NOTE: Lubrication must be done within the number of copies indicated in the following table: If this is not done, problems concerning copy quality and/or mechanical operation will occur. Also, some parts may become prematurely damaged.
Page 134: Expected Life Of Parts
1 August 1988 EXPECTED LIFE OF PARTS NOTE: If the maintenance is carefully performed at a service call. the following main parts will work on for the expected service life: PART DESCRIPTION EXPECTED SERVICE LIFE SECTION Develop- 1. Toner Metering Blade 60K (Black) ment 6K (Color)
Page 135: General Service Tables
1 August 1988 5. GENERAL SERVICE TABLES 5.1 TEST POINTS 5.1.1 Main PCB NUMBER FUNCTION TP101 ADS voltage adjustment (using VR102) TP102 5.1.2 AC Drive FUNCTION TP401 Factory use TP402 Factory use TP403 Factory use TP404 Factorv use TP405 5.1.3 DF Main PCB FUNCTION TP102...
Page 136: Variable Resistors
1 August 1988 5.2 VARIABLE RESISTORS 5.2.1 Main PCB NUMBER FUNCTION VR101 Light intensity adjustment VR102 ADS adjustment 5.2.2 Power Pack NUMBER FUNCTION Factory use (Transfer / Bias Power pack) VR-C Factory use (Charge Power pack) 5.2.3 Master Sensor (Erase Lamp Unit) NUMBER FUNCTION Factory use...
Page 137: Dip Switches
5.3 DIP SWITCHES 5.3.1 Main PCB DIPSWITCH101 1=Switch 0=Switch DIP SWITCH 101 FUNCTION Free Run - Leading edge registration Decrease (-) Feed solenoids and the total counte are by-passed. Variation When a self-diagnostic code is per step; Approx. 1.3 mm displayed, the copier stops.
Page 138: Df Pcb
1 August 1988 DIP SWITCH 702 5.3.3 DF PCB DIP SWITCH 101 a) When the main switch is turned on, the DPS 101 setting must be NOTE: normal, in order that the initial sequence between the copier and DF can take place. b) When utilizing the free run modes, the lift switch must be ON and SW101 pressed.
Page 139: Test Mode
1 August 1988 6. TEST MODE This mode is used to make various adjustments and to check the opera- tion of electrical devices. Turn on DPS101 -4 (main PCB), and turn on the main switch. Press the Start key to energize a mode, and press the C/S key to de-energize it.
Page 140: Service Remarks
1 August 1988 SERVICE REMARKS 7.1 MASTER UNIT Never touch the master belt and do not apply oil or an organic solvent to the master belt surface. When the master unit is out of the machine or the upper clamshell is open, avoid exposing it to a bright light or direct sunlight to prevent the master belt from light fatigue.
Page 141: Development
1 August 1988 7.4 DEVELOPMENT 1. When white vertical lines appear on the copy, use the toner agitator to clean the toner metering blade. Do not use the toner agitator unless copy image problems occur. This is to prevent damaging the toner metering blade. 3.
Page 142: Specialtools And Lubricants
1 August 1988 8. SPECIAL TOOLS AND LUBRICANTS DESCRIPTION PART NO. REMARKS Positioning Ring 5216 9003 Test Chart OS-A3 100sheets/set 5420 9502 Digital Multimeter 5420 9507 BECKMAN RMS3030 Deluxe Test Lead 5420 9508 BECKMAN DL241 Accessory Kit Grease - Mobil 400g/can 5447 9078 Temp.
Page 143: Replacement And Adjustment
SECTION 5 REPLACEMENT AND ADJUSTMENT...
Page 144: Exterior
1 August 1988 1. EXTERIOR 1.1 UPPER CLAMSHELL COVER REMOVAL .1 Platen Cover Remove the platen cover [A] (2 push-locks) by lifting it upwards. 1.1.2 Upper Cover 1. Remove the platen cover. 2. Remove the platen cover pedestal [B] (4 screws). 3.
Page 145: Innercover
1 August 1988 1.1.5 Inner Cover 1. Open the clamshell and remove the release lever [G] (1 E-ring). 2. Remove the inner cover [H] (5 screws). NOTE: When installing the inner cover, make sure that the positioning tabs [I] engage with the metal frame correctly. 1.1.6 Operation Panel 1.
Page 146: Lower Clamshell Cover Removal
1 August 1988 LOWER CLAMSHELL COVER REMOVAL 1.2.1 Front Cover 1. Lower the cassette release lever [A] and pull out the cassette tray [B]. 2. Open the clamshell. 3. Remove the front cover [C] (2 screws). NOTE: When installing the front cover, make sure the tabs [D] engage with the positioning notches.
Page 147: 5Lower Rear Cover
1 August 1988 1.2.5 Lower Rear Cover 1. Remove the upper rear cover (2 screws). 2. Open the clamshell. 3. Remove the lower rear cover [H] (4 screws). NOTE: The longer screw is used to prevent the upper feed guide plate from being turned over.
Page 148: Optics
1 August 1988 2. OPTICS 2.1 EXPOSURE GLASS REMOVAL 1. Remove the left scale [A] (2 screws). 2. Slightly lift up the left edge and slide out the exposure glass [B]. NOTE: a) Place the exposure glass on a sheet of paper in order not to scratch the surface.
Page 149: Erase Lamp Unit Replacement
1 August 1988 2.2 ERASE LAMP UNIT REPLACEMENT Turn off the main switch, and unplug the copier. Open the front cover and remove the inner cover (1 E-ring, 5 screws). Remove the exposure glass (2 screws). Remove the lens cover [A] (2 screws). Open the clamshell and remove the master unit.
Page 150: Exposure Lamp Replacement
1 August 1988 2.3 EXPOSURE LAMP REPLACEMENT CAUTION: Do not touch the reflector or the new exposure lamp with your bare hands. Use a strip of paper to handle the lamp as oil from your fingers will discolor the lamp due to the heat. Turn off the main switch and unplug the copier.
Page 151 1 August 1988 9. Reassemble the 1st scanner. 10. Check that the exposure lamp position is correct (see Exposure Lamp Position Adjustment section). NOTE: The lamp stopper is fixed to the exposure lamp in order to prevent possible lamp rotation.
Page 152: Exposure Lamp Posltion Adjustment
1 August 1988 2.4 EXPOSURE LAMP POSITION ADJUSTMENT Turn off the main switch and unplug the copier. Remove the exposure glass (2 screws). Move the 1st scanner to the center of the optics cavity. Remove the front and rear exposure lamp terminal covers [A] (1 screw each).
Page 153: Vertical Adjustment
1 August 1988 2.4.2 - Vertical Adjustment - 7. Remove the upper right cover (2 screws). 8. Move the 1st scanner [A] to the center of the optics cavity and view the exposure lamp filament [B] through the holes [C] in the right optics frame.
Page 154: Scanner Drive Wire Replacement
1 August 1988 2.5 SCANNER DRIVE WIRE REPLACEMENT Turn off the main switch and unplug the copier. Remove the following parts: e) Upper cover (6 screws) a) Platen cover f) Upper left cover (4 screws) b) Platen cover g) Upper rear cover (2 screws) pedestal (4 screws) h) Upper right cover(2 screws).
Page 155 1 August 1988 6. Hook the end bead [A] of the new wire in the anchorage point [1], and run it over the pulleys in the following order: a) inner track of WP1 [2] b) via the wire clamp [3] to WP2 [4] (lower track) c) inner to outer on WP3 [5] (4 times) to WP4 [6] (lower track) d) outer track of WP1 [7] and over WP5 [8].
Page 156: Lens Drive Wire Replacement
1 August 1988 2.6 LENS DRIVE WIRE REPLACEMENT Turn off the main switch and unplug the copier. Remove the exposure glass (2 screws). Remove the lens cover [A] (2 screws). Remove the mirror home position actuator [B] (1 screw). Remove the lens drive wire [C]. Manually move the lens housing [D] all the way toward the mirror as- sembly [E], and place the 1st scanner [F] in the home position.
Page 157 1 August 1988 10. Keeping the wire taut, move the 1st scanner towards the right in order to create space around the lens drive pulley as shown. 11. Run the wire 3 and a half times around the lens drive pulley (from bottom to top).
Page 158: Lens Drive Motor Replacement
1 August 1988 LENS DRIVE MOTOR REPLACEMENT Turn off the main switch and unplug the copier. Remove the lens drive wire (see Lens Drive Wire Replacement section). Remove the upper rear cover (2 screws). Lower the ac drive board (2 screws). Release the lens drive motor harness (1 connector, 3 wire clamps).
Page 159: Mirror Drive Wire Replacement
1 August 1988 2.8 MIRROR DRIVE WIRE REPLACEMENT Turn off the main switch and unplug the copier. Remove the mirror home position actuator (see Lens Drive Wire Replace- ment section). Remove the mirror drive wire [A]. Hook the bead [B] of the new wire in the anchorage point. Run the wire 2 times around the mirror drive pulley [C] (bottom to top), and hook the tension spring [D] to its anchorage point.
Page 160: Mirror Drive Motor Replacement
1 August 1988 2.9 MIRROR DRIVE MOTOR REPLACEMENT Turn off the main switch and unplug the copier. Remove the mirror drive wire (see Mirror Drive Wire Replacement section). Remove the following parts: a) Platen cover b) Platen cover pedestal (4 screws) c) Upper cover (6 screws) (2 screws)
Page 161: 5Th Mirror Replacement
1 August 1988 2.10 5TH MIRROR REPLACEMENT Left scale (2 screws) 2. Remove the following parts: Exposure glass Lens cover (2 screws). CAUTION: Do not adjust the eccentric cam on the mirror assembly. It is fac- tory set. 3. Remove the mirror home position actuator [A] (1 screw). CAUTION: Take care not to scratch the mirror surfaces when removing the mirror assembly.
Page 162: Development And Quenching
1 August 1988 3. DEVELOPMENT and QUENCHING 3.1 TONER METERING BLADE REPLACEMENT Open the clamshell and remove the development unit. Remove the toner cartridge. Remove the front cover [A] of the development unit (2 screws). Remove the roller cover bracket [B] (1 screw), and take off the develop- ment roller cover [C].
Page 163: Quenching Lamp Replacement
1 August 1988 3.2 QUENCHING LAMP REPLACEMENT Turn off the main switch and unplug the copier. Remove the following parts: a) Left scale (2 screws) c) Upper left cover (4 screws) b) Exposure glass d) Upper rear cover (2 screws). Lower the ac drive board [A] (2 screws).
Page 164: Paper Feed
1 August 1988 4. PAPER FEED CASSETTE FEED ROLLER REPLACEMENT 1. Pull out the cassette tray. 2. Open the clamshell and remove the paper tray [A]. 3. Remove the paper turn guide [B] (2 screws). 4. Remove the paper end sensor assembly [C] (1 screw). 5.
Page 165: Cassette Friction Pad Replacement
1 August 1988 4.2 CASSETTE FRICTION PAD REPLACEMENT 1. Pull out the cassette tray [A] from the copier. 2. Peel off the friction pad [B] from the friction pad holder [C], 3. Install a new friction pad. NOTE: Avoid touching the friction pad with oily hands. 5-22...
Page 166: Plck-Up Roller Replacement
1 August 1988 4.3 PICK-UP ROLLER REPLACEMENT 1. Remove the paper tray. 2. Rotate the pick-up roller shaft so that the flat sides align with the shaft holder openings [A]. 3. Pull the rear end of the roller shaft toward the right and slide it to the rear [B] .
Page 167: Tray Feed Roller Replacement
1 August 1988 4.4 TRAY FEED ROLLER REPLACEMENT Turn off the main switch and unplug the copier. Remove the front cover (2 screws), paper tray, upper rear cover (2 screws), and the lower rear cover (4 screws). Open the clamshell and remove the development unit. Remove the tray feed solenoid [A] (2 screws, 2 wire clamps).
Page 168 1 August 1988 12. Unhook the pick-up stay spring [I]. 13. Remove the front and rear screws securing the feed roller housing [J] (3 screws). 14. Remove the housing stay [K] and the pick-up stay cover [L] (2 screws). 15. Remove the E-ring and bushing from the front of the tray feed shaft [M]. 16.
Page 169: Cassette Feed Clutch Lubrlcation
1 August 1988 4.5 CASSETTE FEED CLUTCH LUBRICATION Turn off the main switch and unplug the copier. Remove the upper rear cover, and the lower rear cover (2 screws each). Remove the tray feed solenoid [A] (2 screws, 2 wire clamps). Unhook the sector gear spring and the tray feed solenoid spring [B].
Page 170: Plck-Up And Tray Feed Clutch Lubrication
1 August 1988 4.6 PICK-UP AND TRAY FEED CLUTCH LUBRICATION Turn off the main switch and unplug the copier. Remove the upper rear cover, and the lower rear cover (2 screws each). Remove the tray feed solenoid [A] (2 screws, 2 wire clamps). Unhook the sector gear spring and the tray feed solenoid spring [B].
Page 171 1 August 1988 REGISTRATION CLUTCH LUBRICATION Turn off the main switch and unplug the copier. Remove the upper rear cover (2 screws), and the lower rear cover (4 screws). Remove the registration clutch bracket [A] (2 screws, 1 E-ring and 1 bushing).
Page 172: Paper Size Switch Replacement
1 August 1988 4.8 PAPER SIZE SWITCH REPLACEMENT Turn off the main switch and unplug the copier. Pull out the cassette tray. Remove the upper rear cover (2 screws), and the lower rear cover (4 screws). Remove the paper size switch together with the bracket [A] (3 screws). Remove the paper size switch [B] from the bracket (2 screws and 1 con- nector).
Page 173: Paper End Sensor Replacement
1 August 1988 PAPER END SENSOR REPLACEMENT Remove the paper tray. Remove the paper turn guide [A] (2 screws). Remove the paper end sensor unit [B] (1 screw, 1 connector). Remove the paper end sensor actuator [C] by flexing the paper end sen- sor bracket gently.
Page 174: Paper Width Sensor Replacement
1 August 1988 4.10 PAPER WIDTH SENSOR REPLACEMENT Open the clamshell. Remove the development unit. Remove the width sensor cover [A] (2 screws). Replace the paper width sensors [B] (1 connector each). NOTE: When reinstalling the width sensor cover, first insert the positioning tabs into the positioning notches.
Page 175: Paper Length Sensor Replacement
1 August 1988 4.11 PAPER LENGTH SENSOR REPLACEMENT Remove the paper tray. Remove the paper turn guide [A] (2 screws). Disconnect the length sensor connector [B]. Remove the screw securing the length sensor bracket [C]. While pushing in the length sensor interrupter [D], slide the length sensor bracket to the right.
Page 176: Fusing Unit
1 August 1988 5. FUSING UNIT 5.1 HOT ROLLER REPLACEMENT WARNING: The fusing unit may be hot. Allow it to cool down before performing the following procedures. Turn off the main switch and unplug the copier. Open the exit assembly (see Hot Roller Strippers Replacement section). Open the clamshell and remove the master unit.
Page 177 1 August 1988 CAUTION: To prevent the scanner from sliding down and becoming damaged, make sure it is in the home position before starting the next step. 5. Open the clamshell, remove the two stopper screws [A], and stand it in the straight up position.
Page 178 1 August 1988 13. Remove the bearing [A] from the front end of the hot roller [B] (1 C- ring). 14. Remove the fusing gear [C] (1 C-ring). 15. Slide the hot roller to the front and remove the rear bearing [D]. 16.
Page 179 1 August 1988 CAUTION: When installing the fusing stay [A], the exit assembly must be open, otherwise the stripper pawl setting plate [B] locks the exit assembly. 20. Assemble the copier. NOTE: When installing the fusing lamp, make sure both ends of the fusing lamp properly contact the terminals.
Page 180 1 August 1988 ‘[D] Turn off the main switch and unplug the copier. Remove the hot roller (see Hot Roller Replacement section). Remove the transport guide plate [A] (2 screws). Lift out the pressure roller [B]. Remove the front and rear bushings [C] (1 E-ring each). Install the new pressure roller, and remove the protective paper [D].
Page 181: Thermistor Replacement
1 August 1988 THERMISTOR REPWCEMENT Turn off the main switch and unplug the copier. Remove the fusing stay (see Hot Roller Replacement section). Remove the transport guide plate [A] (2 screws). Remove the thermistor [B] (1 screw, 1 connector). CAUTION: When installing the fusing stay, the exit assembly must be open, otherwise the stripper pawl setting plate locks the exit assembly.
Page 182: Thermofuse Replacement
1 August 1988 5.4 THERMOFUSE REPLACEMENT 1. Turn off the main switch and unplug the copier. 2. Remove the transport guide plate (see Thermistor Replacement section). CAUTION: When removing the rear fusing lamp terminal, be careful not to damage the fusing lamp. 3.
Page 183: Hot Roller Strippers Replacement
1 August 1988 HOT ROLLER STRIPPERS REPLACEMENT 1. Remove the exit cover [A] (2 screws). 2. Open the exit assembly [B] (2 screws). 3. Remove the hot roller strippers [C] together with the springs [D] NOTE: It is recommended to replace the hot roller strippers as a set. 5-40...
Page 184 1 August 1988 1. Turn off the main switch and unplug the copier. 2. Remove the following parts: Front cover (2 screws) Upper rear cover (2 screws) Lower rear cover (4 screws) Exit cover (2 screws) Lower left cover (2 screws), 3.
Page 185: Fusing Pressure Adjustment
1 August 1988 FUSING PRESSURE ADJUSTMENT Turn off the main switch and unplug the copier. Remove the following parts: Front cover (2 screws) (2 screws) Upper rear cover (4 screws). Lower rear cover Remove the fusing drive bracket. (See Hot Roller Replacement section.) Remove the pressure springs [A].
Page 186: Coronas
1 August 1988 6. CORONAS Open the clamshell and remove the master unit. Remove the charge corona unit [A] (1 screw, 1 plug). Remove the front endblock cover [B] by sliding it off gently. Remove the rear endblock cover [C] by sliding it off gently together with the charge corona wire [D].
Page 187: Transfer Corona Wire Replacement
1 August 1988 TRANSFER CORONA WIRE REPLACEMENT Open the clamshell and remove both the lower rear cover and front cover. Remove the transfer corona unit [A] (1 screw, 1 plug). Gently remove the front endblock cover [B]. Slide the rear endblock cover [C] to the rear and then remove it together with the transfer corona wire [D] .
Page 188: Copy Image
1 August 1988 7. COPY IMAGE 7.1 LIGHT INTENSITY ADJUSTMENT ADJUSTMENT STANDARD : When the copier is set at the 3rd image den- sity level (middle setting), level 3 of the gray scale on the copy should be slightly visible but level 2 should be invisible.
Page 189: Auto Id Sensor Adjustment
1 August 1988 7.2 AUTO ID SENSOR ADJUSTMENT ADJUSTMENT STANDARD : ±0.05 PREPARATION: 1. Adjust the Iight intensity first (see Light intensity Adjustment section). 2. Turn off the main switch. 3. Lay three sheets of white copy paper on the exposure glass and close the platen cover.
Page 190 1 August 1988 8. Wait for a few seconds until the light intensity instable. WARNING:The exposure lamp turns off automatically after being on for 20 seconds – for safety purposes. If the adjustment is not com- pleted within 20 seconds, wait until the exposure glass cools down.
Page 191 1 August 1988 METHOD B: Reading from a digital multimeter 10. Open the clamshell and remove the inner cover(1 E-ring, 5screws). 11. Hook up the multimeter leads as follows: positive lead to TP101 on the main PCB negative lead to TP102 (GND) on the main PCB. 12.
Page 192: Leading Edge Registration Adjustment
1 August 1988 LEADING EDGE REGISTRATION ADJUSTMENT – Leading Edge Registration - ADJUSTMENT STANDARD: 0 ±2.0 mm (0 ±0.08" 1. Lay a scale [A] on the exposure glass [B], aligning it with the left scale [C] as shown in the illustration. 2.
Page 193: Leading Edge Erase Adjustment
1 August 1988 LEADING EDGE ERASE ADJUSTMENT 3.5 ± 1mm (0.14 ± 0.04") ADJUSTMENT STANDARD: Adjust the leading edge registration first (see Leading Edge Registration Adjustment section). Lay a scale [A] on the exposure glass [B] , aligning it with the left scale as shown in the illustration.
Page 194: Uneven Image Density Adjustment (Uneven Exposure)
1 August 1988 7.5 UNEVEN IMAGE DENSITY ADJUSTMENT (uneven exposure) Side-to-Side Image Density Standard: Within one level difference between the two gray scales on either side-of the OS-A3 test chart. Adjust the exposure lamp position (see Exposure Lamp Positioning sec- tion).
Page 195: Horizontal Magnification Adjustment
1 August 1988 7.6 HORIZONTAL MAGNIFICATION ADJUSTMENT 7.6.1 - Resolution Adjustment - 1. Make a few copies of the OS-A3 chart using the 1 :1 reproduction ratio and check the resolution [A]. 2. If the resolution is poor, remove the lens cover (2 screws), and adjust the position of the mirror position sensor [B] to achieve an optimum image sharpness.
Page 196: Vertical Magnification Adjustment
1 August 1988 VERTICAL MAGNIFICATION ADJUSTMENT DIP SW 701 DIP SW 702 Vertical Magnification Standard: 100 ± 1.0mm (±1%) 1. Make a few copies of OS-A3 chart using the 1:1 reproduction ratio and check that the vertical magnification [A] is within standard. 2.
Page 197: Others
1 August 1988 8. OTHERS 8.1 50 Hz/60 Hz CONVERSION Turn off the main switch and unplug the copier. Open the clamshell and remove the master unit. Remove the following parts: Platen cover Front cover (2 screws) Upper rear cover (2 screws) Lower rear cover (4 screws).
Page 198: Master Clutch Lubrication
1 August 1988 8.2 MASTER LUBRCATION CLUTCH Remove the upper rear cover (2 screws). Open the clamshell. Remove the harness from the harness clamp [A]. Remove the pulse generator sensor connector [B]. Remove the timing belt tensioner [C] (1 screw) and the timing belt [D]. Remove the master/development drive pulley [E] (1 E-ring).
Page 199 1 August 1988 10. Remove the master clutch sleeve [I]. 11. Rotate the clutch spring [J] counterclockwise and remove it. Apply Mobil Temp. 78 to the clutch. 13. Re-install the clutch so that the radial end [K] of the spring and the smooth side of the clutch sleeve are facing the pulse generator gear.
Page 200: Master Drive Assembly Replacement
1 August 1988 8.3 MASTER DRIVE ASSEMBLY REPLACEMENT 8.3.1 Master Drive Assembly Removal Remove the upper rear cover (2 screws). Open the clamshell and remove the master unit. Remove the harness [A] from the harness clamp. Remove the pulse generator sensor assembly [B] (1 screw, 1 connector). Remove the master drive assembly.
Page 201: Toner Overflow Sensor Replacement
1 August 1988 8.4 TONER OVERFLOW SENSOR REPLACEMENT NOTE: Make sure that the copier is in the full size mode (1 : 1) before starting the following procedure. 1. Remove the upper left cover (4 screws) and the upper rear cover (2 screws).
Page 202: Troubleshooting
SECTION 6 TROUBLESHOOTING...
Page 203: Copy Quality
1 August 1988 1. COPY QUALITY 1.1 UNEVEN IMAGE DENSITY ACTION CAUSE (1) Charge corona wire is dirty. (1) Clean it with the cleaner. (2) Charge corona wire is mount- (2) Check that the wire is in the V-slot. ed incorrectly. (3) Quenching lamp is dirty.
Page 204: Dirty Backside Or Leading Edge
1 August 1988 1.4 DIRTY BACKGROUND CAUSE ACTION (1) Avoid exposing the master unit to (1) Light fatigue of the master unit. light. (Do not leave the machine with the upper clamshell opened for a long time.) (2) Exposure glass is dirty. (2) Clean it with a soft cloth.
Page 205: Faint Copy At Leading Or Trailing Edge
1 August 1988 (3) Transfer power pack failure. (3) Check the circuit and replace the defective part. (4) Master unit has exceeded ser- (4) Replace the master unit. vice life. (5) Paper is damp. (5) Change the paper in the cassette/ paper tray.
Page 206: Black Lines
1 August 1988 1.11 BLACK LINES ACTION CAUSE (1) Clean it with a damp cloth. (1) Thermistor is dirty. (2) Hot roller strippers are dirty. (2) Clean them with a damp cloth. (3) Deformed toner metering (3) Replace the blade with a new one. blade.
Page 207: E1 Exposure
1 August 1988 2. SERVICE CALL CONDITIONS 2.1 E1 EXPOSURE <E12> - Definition - 1. Lights if the feedback signal becomes higher than 4.2 volts or less than 0.5 volt when the exposure lamp is on. 2. Lights if the feedback signal becomes higher than 1 volt when the ex- posure lamp should be off.
Page 208 1 August 1988 Check the exposure lamp continuity. Replace the exposure lamp. Check the thermoswitch when it is cool. Closed Open Replace the thermoswitch. Check the voltage at CN407-3 on the ac drive board. Drops to 22.5V Stays 24V Replace the ac drive board. Replace the main board.
Page 209: E2 Optlcs
1 August 1988 2.2 E2 OPTICS < E20 > (Main Board Check) - Definition - 1. Lights if the main CPU does not receive the ready signal from the optics CPU within 10 seconds after the main CPU sends the signal to change the reproduction ratio.
Page 210 1 August 1988 Possible causes = Home position sensor defective Scanner drive motor pulley or scanner drive wire oily or damaged Scanner drive motor failure Optics board defective Main board defective - Action - Does the scanner travel smoothly and correctly? Confirm that the scanner motor is turning.
Page 211 1 August 1988 < E28 > (Optics Board Check) - Definition - 1. Lights if the lens home position sensor does not change from HIGH to LOW within 6.4 seconds when the lens moves from the reduction to the enlargement mode. <...
Page 212 1 August 1988 E2A > (Optics Board Check) < - Definition - 1. Lights if the mirror home position sensor does not change from LOW to HIGH within 3.5 seconds when the mirrors move to the home position from the reduction/enlargement mode. <...
Page 213 1 August 1988 < E2C > (Optics Board Check) - Definition - 1. Lights if the scanner travels faster than 670 mm/s. - Possible causes - 1. Heavy drag on scanner movement 2. AC power fluctuation 3. Defective dc power supply board 4.
Page 214: E5 Fuslng
1 August 1988 < E2D > (Optics Board Check) - Definition - 1. Lights if no encoder pulse is received for 118 milliseconds during the copy cycle. - Possible causes - 1. Scanner drive motor failure 2. Optics board failure 3.
Page 215 1 August 1988 - Action - Check the thermofuse’s continuity. Replace the thermofuse. Is the fusing relay closed when +24 volts is being supplied between T1 and T6 of the fusing relay? Yes No Replace the fusing relay. Check the fusing lamp’s continuity. Replace the fusing lamp.
Page 216 1 August 1988 - Action - Check the voltage at CN108-7 on the main board. Max. 4V Replace the thermistor. (Thermistor short) Replace the main board. < E54 > - Definition - 1. Lights if the temperature detected by the thermistor stays higher than 210°C for over 145 seconds.
Page 217 1 August 1988 < E55 > - Definition - 1. Lights if the temperature detected by the thermistor does not reach 2 “C within 5 seconds after the main switch turns on. - Possible causes - 1. Thermistor open 2. Fusing triac open 3.
Page 218: E6 Functional Drlve
1 August 1988 2.4 E6 FUNCTIONAL DRIVE < E61 > - Definition - 1. Lights if the CPU does not receive a pulse from the pulse generator for 1.6s during a copy cycle. - Possible causes - 1. Main motor failure 2.
Page 219: E7 Master Unit
1 August 1988 2.5 E7 MASTER UNIT < E71 > - Definition - 1. Lights if the CPU does not detect the sensor plate within 6 s after belt rotation starts. - Possible causes - 1. No master unit installed 2.
Page 220: E9 Optlcs Board
1 August 1988 Check the Vc + 5V line. Check the voltage at CN103-3 when the sensor detects the sensor plate. 5V pulse Average 0.8V Replace the main board. Replace the master sensor. 2.6 E9 OPTICS BOARD < E93 > - Definition - 1.
Page 221 1 August 1988 Bin drive motor failure Sorter main board defective Copier main board defective - Action - Is the bin drive motor powered? Replace the bin drive motor, Check the fuse (FU102) on the sorter main board. OK Open Replace the fuse.
Page 222: Defectlve Sensor/Swltch Table
1 August 1988 3. DEFECTIVE SENSOR/SWITCH TABLE 3.1 COPIER Symbol Name Problem Condition Home Position Open Self-diagnostic code "E2D" Sensor Short Self-diagnostic code "E2D" Pulse Generator Open Self-diagnostic code "E61" Short Self-diagnostic code "E61" Toner Overflow Open Replace Toner Collection Unit in- Sensor dicator is displayed but no over- flow condition exists.
Page 223 1 August 1988 Problem Symbol Name Condition Exit Sensor Open Misfeed will occur at paper exit. Short Check Paper Path indicator is dis- played at power on. (Initial Jam Check) Registration Open Misfeed will occur at registration area. Sensor Short Check Paper Path indicator is dis- played at power on.
Page 224: Document Feeder
1 August 1988 Problem Symbol Name Condition Safety Switch Open Copier cannot be powered. Short Safety function does not work. Paper Size Open CPU may detect wrong paper size. Switches Short CPU may detect wrong paper size. 3.2 DOCUMENT FEEDER Problem Symbol Name...
Page 225: Sorter
1 August 1988 3.3 SORTER Problem Name Condition Symbol Paper Sensor Open Misfeed will occur at sorter entrance. Short Check Sorter Path indicator is dis- played at power on. (Initial Jam Check) Wheel Switch Open Bin drive motor continues to rotate after power on.
Page 228: Copier Timing Chart
August 1, 1988 3. COPIER TIMING CHART 8-1/2’’/A4 11” x sideways Process Speed = 115m m/see. Table 6. Trailing Erase ON 1 Pulse = 1.3mm,ll.38ms Timing Pulse Leading Edge Signal Note : Between table 6 [ 1 1 ’ ’ x l 7 ’ ’ / A 3 ] Process Speed = 115m m/see.
Page 230 ELECTRICAL COMPONENTS AND CONNECTOR LAYOUT-COPIER 1 August 1988 Index No. Description P to P Symbol Index No. Description Symbol P to P Total Counter Exit Sensor Exposure Lamp Thermistor Optics Anti-condensation Heater Fusing Lamp Thermoswitch Thermofuse Exhaust Blower Noise Filter Board PCB5 H1-H2 Home Position Sensor...
Page 231 SECTION 8 DOCUMENT FEEDER...
Page 232: Specifications
1 August 1988 SPECIFICATIONS - Thin original mode - Original Size and Weight: Maximum A3/11"x17" Minimum B6/ 5½" 8½" 41 to 128g/m²(11 to 34 lb) Weight - Thick original mode - Maximum A3/11"x17" Minimum B6/ 5½" x 8½" Weight 52 to 128 g/m (14 to 34 lb) - Auto reverse mode - Maximum...
Page 233: Component Layout
1 August 1988 2. COMPONENT LAYOUT - Mechanical Components - 1. Pulse Generator Disk 6. Inverter Pawl 2. Friction Belt Inverter Roller 3. Pick-up Lever 8. Transport Belt Original Table 9. Pick-up Roller 5. Exit Roller 10. Feed Roller - Electrical 1.
Page 234: Electrical Component Descriptions
1 August 1988 3. ELECTRICAL COMPONENT DESCRIPTIONS Name Function Location Symbol Motors Belt Drive Motor DC servomotor that drives to the transport belt and feed-in system (pick-up roller, feed roller, pull-out roller and relay roller). Feed-out Motor DC servomotor that drives the feed-out unit of the DF.
Page 235 1 August 1988 Location Name Function Symbol Printed Circuit Boards PCB1 DF Main Board Controls all DF functions. PCB2 Indicator Panel Contains operator indicators. Board InterFace Board All signals between DF and copier pass PCB3 through this board. DF Power Supply Rectifies line voltage to +24 volts and +5 PCB4 Board volts.
Page 236: Overall Machine Control
1 August 1988 4. OVERALL MACHINE CONTROL The DF CPU monitors the input signals from the sensors and switches, and energizes the solenoids and the indicator LEDs directly. The belt drive motor and the inverter motor are controlled by the DF CPU through their respective driver ICs.
Page 237 1 August 1988 Definition Originals are set on the original table. Allows the copier to start copy sequence. The DF is lifted. Misfeed occurs in the DF. No. Signal Name Definition Feed-in Requests the DF to feed-in the original. 2 Feed-out Requests the DF to feed-out the original.
Page 238: Basic Operation
1 August 1988 5. BASIC OPERATION 1. One-sided Original Feed When an original is inserted face up into the DF, the Insert Original indicator light goes out and the DF informs the copier CPU that originals have been set. When the Start key is pressed, the copier CPU moves the scanner 100 mm away from the left scale and sends the feed-in signal to the DF.
Page 239 1 August 1988 side. Then the belt drive motor reverses and the original is fed towards the left scale and is aligned against the scale. The DF CPU sends the copy start signal a short time after the original trailing edge has passed the feed-out sen- sor.
Page 240: Power Distribution
1 August 1988 6. POWER DISTRIBUTION The DF uses three dc power levels: +24 volts, +12 volts, and +5 volts. The line voltage is applied to the DF power supply board where it is stepped down and rectified to +24 volts and +5 volts. Then, those two dc voltages are supplied to the DF main board.
Page 241: Interface Circuit
1 August 1988 7. INTERFACE CIRCUIT The Copier CPU and the DF CPU communicate via the interface board and fiber optics. The interface board changes the optical signals to electrical sig- nals (only vice versa). 8-10...
Page 242: Original Feed
1 August 1988 8. ORIGINAL FEED 8.1 ORIGINAL PICK-UP After setting the originals on the original table, the originals contact the feeler [A] of the original set sensor and cause the feeler to move out of the sensor. The DF then sends the original set signal to the copier CPU to inform it that the DF will be used.
Page 243: Original Separation
1 August 1988 8.2 ORIGINAL SEPARATION The feed roller [A] and the friction belt [B] are used to feed-in and separate the originals [C]. Only the bottom original is fed because the friction belt prevents any other originals from feeding. Original feed starts when the feed roller starts turning and advances the bot- tom original of the stack.
Page 244: Original Feed-Ln Mechanlsm
1 August 1988 8.3 ORIGINAL FEED-IN MECHANISM The belt drive motor [A] drives the pick-up roller [B], the feed roller [C], the pull out roller [D], the relay roller [E], and transport belt [F] via a feed clutch and a gear train. The pick-up and feed-in solenoids are energized 100 milliseconds after the Start key of the copier is pressed.
Page 245 1 August 1988 This document feeder has two different ways of stopping original at the cor- rect position on the exposure glass. They are called the “thin original mode” and the “thick original mode”. The mode used is determined by the original select switch [A].
Page 246: Original Size Detection
1 August 1988 8.4 ORIGINAL SIZE DETECTION The DF determines originaI size (both width and length) through the use of the original width sensor [A], registration sensor, and pulse generator sensor [B]. The original’s length is calculated by counting the number of pulses from the pulse generator while the registration sensor is on.
Page 247: Original Lnversion Mechanlsm
1 August 1988 8.5 ORIGINAL INVERSION MECHANISM The two sided originals are inverted in the feed-out unit. 1) When the copier Start key is pressed, the two sided original is fed into the feed-in unit, passing over the DF registration sensor [A]. The feed-out motor [B] and the inverter solenoid [C] turn on 100 milliseconds after the original trailing edge passes the registration sensor.
Page 248 1 August 1988 3) The original is directed onto the exposure glass again by the inverter pawls. The belt drive motor now reverses 140 milliseconds after the feed out sensor [E] turns on. The transport belt then moves the original toward the left scale.
Page 249: Original Feed-Out Mechanism
1 August 1988 8.6 ORIGINAL FEED-OUT MECHANISM The exit rollers [A] are driven by inverter motor [B]. When the document feeder receives the feed out signal from the copier, the transport belt and the exit rollers start turning simultaneously. The transport belt carries the original to the inverter rollers [C] and the exit rollers take over the original feed-out.
Page 250: Belt Drlve Motor Clrcult
1 August 1988 8.7 BELT DRIVE MOTOR CIRCUIT DF Main Board ( PCB 1 A dc servomotor is used as the belt drive motor. The driver IC controls the speed of the belt drive motor. The CPU sends the speed data (programmed) to the driver IC.
Page 251: Feed-Out Motor Circuit
1 August 1988 8.8 FEED-OUT MOTOR CIRCUIT The DF CPU sends the speed data (high or low) to the driver IC and the motor drive circuit. The motor drive circuit creates the PWM signal and sends the motor drive pulses to the inverter motor. The frequency generator of the feed-out motor makes a very low voltage ac current which is fed back to the driver IC.
Page 252: Input And Output Clrcults
1 August 1988 8.9 INPUT AND OUTPUT CIRCUITS DF Main Board (PCB1) The above devices are directly controlled and monitored by the CPU. The solenoids and indicator panel are energized with +24 volts. The sensors and switches are energized with +12 volts or + 5 volts. To energize a solenoid or indicator, the CPU drops the connected trigger line from +24 volts to LOW.
Page 253: Lift Mechanism
1 August 1988 9. LIFT MECHANISM When the document feeder is opened, the lift springs [D] provide enough force to ensure that the document feeder does not fall onto the exposure glass. When the document feeder is closed, points “A”, “B”, and “C” are aligned and no such force is provided to the document feeder.
Page 254: Original Misfeed Sensing
1 August 1988 10. ORIGINAL MISFEED SENSING The registration sensor and the feed-out sensor are used for misfeed checks. 1. One sided original Feed-out Motor If the registration sensor is not actuated within 685 milliseconds after the belt drive motor starts turning, the Original Misfeed indicator lights (ON check). If the registration sensor does not turn off within 1,250 milliseconds, the CPU determines that there has been an original misfeed (OFF check).
Page 255 1 August 1988 2. Two sided original Registration (RS) Sensor Feed-out Sensor (FS) Inverter Solenoid Belt Drive Motor Feed-out Motor The registration ON/OFF check is same as for one-sided originals. The in- verter motor and the inverter solenoid turn on 100 milliseconds after the registration sensor turns off.
Page 256 1 August 1988 11. ACCESSORY CHECK Check the accessories and their quantities according to the following list: 1. Original Table ............1 p c 2.
Page 257 1 August 1988 8-26...
Page 258: Installation Procedure
1 August 1988 12. INSTALLATION PROCEDURE CAUTION: When installing the DF, make sure that the copier is unplugged. 1. Remove the following parts of the copier: 1) Platen cover [A] (2 push-locks) 2) Platen cover pedestal [B] (4 screws) 3) Upper left cover [C] (4 screws) NOTE: Cut the harness hole cap with nippers.
Page 259 1 August 1988 R emove the strip of tape [A]. Mount the DF on the DF mounting bracket by aligning the holes in the DF and the pins on the mounting bracket, then slide the DF to the left as shown.
Page 260 1 August 1988 CAUTION: During this step, avoid bending the fiber optics sharply as this will damage them. 12. Place the bushing [A] over the DF harness just at the harness band [B]. 13. Secure the bushing in the DF harness bracket [C].
Page 261 1 August 1988 install the angle stopper [A] (2 screws [14]). Install the original table [B]. Adjust the height of the mag- net catches in the following order: 1) Remove the grip cover [C] (3 screws). 2) Loosen the screws of the magnet catches [D] (2 screws each).
Page 262 22. Confirm the original registra- tion (see adjustments section). 23. Reassemble the copier. (The DF harness fits in the cut-out in the upper left cover.) 24. Check the operation of the DF and fill out the New Equipment Condition Report. 25.
Page 263: Reparation For Ransportation
1 August 1988 13. PREPARATION FOR TRANSPORTATION CAUTION: Before moving the document feeder, be sure to prepare it for transportation as follows. The document feeder maybe badly damaged if it is moved without proper preparation. 1. Remove the original table [A]. 2.
Page 264: Replacement And Adjustment
1 August 1988 14. REPLACEMENT AND ADJUSTMENT 14.1 FEED-IN UNIT 14.1.1 Transport Belt Replacement Turn off the main switch and remove the grip [A] (3 screws). Remove the DF main PCB cover [B] (1 screw, 1 connector). Open the entrance guide [C] and remove the transport belt assembly [D] (5 screws).
Page 265: Feed-In Unit Removal
1 August 1988 14.1.2 Feed-in Unit Removal 1. Turn off the main switch. 2. Remove the transport belt assembly. (See the Transport Belt Replace- ment section.) 3. Remove the belt drive motor cover [A] (4 screws). 4. Remove the feed-in unit [B] (4 screws, 8 connectors). 8-34...
Page 266: Pick-Up Roller Replacement
1 August 1988 14.1.3 Pick-up Roller Replacement Turn off the main switch. Remove the feed-in unit. (See the Feed-in Unit Removal section.) Remove the lower entrance guide [A] (2 screws). Remove the original set sensor assembly [B] (1 screw, 1 connector). Remove the pick-up roller [C] (3 E-rings, 1 bushing, 1 gear).
Page 267: Feed-In Clutch Lubrication
1 August 1988 14.1.4 Feed-in Clutch Lubrication Turn off the main switch. Remove the original set sensor assembly. (See the Pick-up Roller Replacement section.) Remove the feed-in solenoid lever spring [A]. Remove the pick-up roller assembly [B] (2 E-rings, 2 bushings). Disassemble and lubricate the feed clutch [C] (1 E-ring) with Mobil Temp.
Page 268: Pick-Up Solenoid Adjustment
1 August 1988 14.1.5 Pick-up Solenoid Adjustment Turn off the main switch. Place several sheets of paper [A] over the exposure glass area. Lower the feed-in unit (see Feed-in Unit Removal section) without discon- necting the eight connectors. Turn on the main switch. NOTE: When the main switch is turned on, the DPS101 setting on the DF main PCB must be as follows: 1 = ON3 = OFF...
Page 269 1 August 1988 5. Turn off DPS101 -1 and 2, then turn on DPS101 -3 and 4 [B]. 6. Loosen the screw fixing the pick-up solenoid [C]. 7. Place the 0.15 mm thickness gauge [D] between the plunger and the solenoid.
Page 270: Feed Roller Replacement
1 August 1988 14.1.6 Feed Roller Replacement Turn off the main switch. Remove the lower entrance guide. (See the Pick-up Roller Replacement section.) Loosen the front bracket [A] (2 screws). Release the feed roller shaft [B] from the front bracket (1 E-ring, 1 bear- ing).
Page 271: Feed-In Solenoid Adjustment
1 August 1988 14.1.7 Feed-in Solenoid Adjustment 1. Turn off the main switch. 2. Place several sheets of paper [A] over the exposure glass area. 3. Lower the feed-in unit (see Feed-in Unit Removal section) without discon- necting the eight connectors. 4.
Page 272: Friction Belt Replacement
1 August 1988 14.1.8 Friction Belt Replacement 1. Turn off the main switch. 2. Remove the seal cover [A] on top of the DF cover. 3. Remove the friction belt assembly [B] (1 screw). 4. Remove the friction belt [C] (2 springs, 1 pin). NOTE: a) When installing the friction belt assembly, make sure the friction roller [D] is set in the correct position (see illustration).
Page 273: Feed-Out Unit
1 August 1988 14.2 FEED-OUT UNIT 14.2.1 Feed-out Unit Removal Turn off the main switch. Remove the DF grip [A] (3 screws). Remove the feed-out motor cover [B] (4 screws). Remove the feed-out unit [C] (4 screws, 3 connectors). 8-42...
Page 274: Inverter Solenoid Adjustment
1 August 1988 14.2.2 Inverter Solenoid Adjustment 1. Turn off the main switch. 2. Place several sheets of paper [A] over the exposure glass area. 3. Lower the feed-out unit (see Feed-out Unit Removal section) without dis- connecting the three connectors. 4.
Page 275: Df Leading Edge Registration Adjustment
1 August 1988 14.2.3 DFL eading Edge Registration Adjustment Using the DF test chart, make a copy in the platen cover mode (A4 width). Confirm that the original select switch [A] is in the thin mode and again using the test chart, make a copy in the DF mode (A4 width). Compare the leading edge registration of both copies, and check that the difference between the two copies is within 2.5 mm.
Page 276 1 August 1988 4. lf the difference is more than 2.5mm, remove the DF main PCB cover(1 screw) and adjust VR102 on the DF main PCB [B] until the leading edge registration is within specification. NOTE: Turning VR102 clockwise results in stopping the original later. Using the DF test chart, make a copy in the DF two sided-original mode.
Page 278: Df Timing Chart
16. DF TIMING CHART August 1, 1988 [ One-sided Original Mode Encoder Pulse Time (see) Feed-out I n v e r t Feed- in I Feed-out C o p y S t a r t Original Sensor Feed-out Sensor 1250ms 1 2 5 0 m s —...
Page 279 ELECTRICAL COMPONENTS AND CONNECTOR LAYOUT-DF P to P Index No. Description Symbol P to P Index No. CN No. Component Symbol Type — 3P/R Original Set Sensor CN118 – Registration Sensor CN200 Indicator Panel PCB2 4P/W — 6P/W Pulse Generator Sensor CN119 –...
Page 280 SECTION 9 SORTER...
Page 281: Specifications
1 August 1988 1. SPECIFICATIONS Number of Bins: 10 bins Paper Size for Bins: Maximum A3, 11"x 17" Minimum A6, 5½" x 8½" (Lengthwise) Paper Weight: g/m² (17 to 24 lb) Bin Capacity: Sort/Stack 20 sheets/ A4, 8½" x11" Mode 15 sheets/ B4, 8½"...
Page 282: Operation Panel
1 August 1988 2. OPERATION PANEL (220/240V) Lights when there is a paper misfeed in the 1. Check Sorter Paper Path sorter. Indicator Press to shift the bins. Use this key to 2. Bin Shift Key remove jammed paper. Lights when copies from different copy runs 3.
Page 283: Component Layout
1 August 1988 3. COMPONENT LAYOUT - Mechanical Components - 1. Sorter Main Board 5. Sorter Switch 2. Paper Sensor 6. Bin Drive Motor 7. Home Position Switch 3. Wheel Switch 4. Roller Drive Motor 8. Operation Panel Board...
Page 284: Electrical Component Descriptions
1 August 1988 4. ELECTRICAL COMPONENT DESCRIPTIONS Symbol Name Function Location Motors Roller Drive Motor DC motor that energizes to drive the lower exit rollers. Bin Drive Motor Reversible DC motor that energizes to move the bins up or down. Switches Wheel Switch Detects the rotation of the transfer wheel...
Page 285: Overall Machine Control
1 August 1988 5. OVERALL MACHINE CONTROL The copier main board provides the sorter main board with +24 volts and +5 volts. +24 volts powers the roller drive motor and the indicator LEDs on the operation panel board, and +5 volts powers all sensors and switches. Also, +24 volts is changed to +12 volts by the regulator IC, which powers the bin drive motor.
Page 286: Basic Operation
1 August 1988 6. BASIC OPERATION - Clear Mode - When the main switch of the copier is turned on, the sorter automatically as- sumes the clear mode. In this mode, all copies are stacked on the first bin. The sorter also assumes the clear mode when either the interrupt mode or the manual feed mode is selected.
Page 287: Exit Roller Drive
1 August 1988 7. EXIT ROLLER DRIVE 7.1 Roller Drive Mechanism Transfer Wheel Bin Drive Belt Bin Drive Pulley Exit Roller Pulley Upper Paper Guide Lower Paper Guide Roller Drive Motor Pulley The exit rollers [A] take over paper transport from the copier. When the copy paper actuates the copier exit sensor, the exit rollers start rotating.
Page 288: Roller Drive Circuit
1 August 1988 7.2 Roller Drive Circuit To turn on the roller drive motor, the copier main board sends a drive signal to the drive IC on the sorter main board. After receiving the drive signal, the drive IC drops CN102-7 from +24 to 0 volt to turn on the roller drive motor. When the paper sensor is actuated, CN102-13 drops to LOW.
Page 289: Bin Drive
1 August 1988 8. BIN DRIVE 8.1 Bin Drive Mechanism Exit Roller Upper Paper Guide Lower Paper Guide The bin drive mechanism moves the bins up and down to receive copies under the direction of the The main com- copier CPU. ponents in this mechanism are the bin drive motor [A], two transfer wheels [B,B’], the wheel switch...
Page 290 1 August 1988 The home position switch [E] in- forms the CPU when all the bins are lowered. To move the bins up, the bin drive motor turns clockwise (as viewed from the front). A timing belt [F] turns the transfer wheels. The transfer wheels have two slots in them 180 degrees apart.
Page 291: Bin Drive Circuit
1 August 1988 8.2 Bin Drive Circuit To turn on the bin drive motor, the copier main board sends drive signals to the drive IC on the sorter main board. After receiving the drive signals, the drive IC either raises CN102-8 or CN102-9 to + 12 volts. This turns on the bin drive motor which respectively moves a bin up or down.
Page 292: Operation Panel Circult
1 August 1988 9. OPERATION PANEL CIRCUIT As with the monitoring and the controlling of the switches and the motors, the data select IC and the drive IC are respectively used to detect a pressed key and to turn on the LEDs on the operation panel board. When the Sorter key or the Bin Shift key is pressed, CN103-1 or CN103-4 drops to LOW respectively, informing the data select IC of the pressed key.
Page 293: Jam Sensing
1 August 1988 10. JAM SENSING Exit Sensor(Copier) Paper Sensor In addition to being used for the exit roller and bin drive timing, the paper sen- sor checks for a misfeed in the sorter. When the copier exit sensor is actuated by the copy paper, the CPU on the copier main board starts a timing cycle.
Page 294: Accessory Check
1 August 1988 11 ACCESSORY CHECK Check the accessories and their quantities according to the following list: 1. Mounting Base ............1 pc 2.
Page 295 1 August 1988 12. INSTALLATION PROCEDURE 1. Install the copier on the mounting base. NOTE: Make sure that the legs rest securely in the cut- outs of the mounting base. 2. Install the magnet on the left cover as shown. NOTE: Place the magnet in the bottom right-hand corner of the cutout.
Page 296 1 August 1988 5. Install the proof tray where the copy tray normally fits. (FT2050/2070 only) Replace the lower guide plate with the accessory lower guide plate (2 screws). (FT2050/2070 only) 7. Insert the sorter hooks into the vertical posts of the mounting base, and then remove the strips of tape from the sorter bins.
Page 297 1 August 1988 NOTE: Separate installation pro- cedures are needed to in- stall the sorter on the FT2050 FT2070/2260. Follow the procedure from step 9 when installing the sorter on the FT2050. Proceed to step 22 when installing sorter on FT2070/2260.
Page 298 1 August 1988 Remove the upper left cover (4 screws). Remove the plastic cap from the docking hole of the upper left cover. 14. Install the harness bracket (2 screws). 15. Thread the sorter harness through the docking hole and the harness bracket.
Page 299 1 August 1988 The sorter harness has two harness bands used as markers. Place the bushing on the sorter harness just behind the first harness band from the connector. Secure the bushing in the harness bracket. Secure both ground wires the rear cover bracket screw).
Page 300 22. Open the front cover. 23. (FT2070) Move the slider to the center and push down the release lever to open the top unit. (FT2260) Push down the release lever to open the top unit. 24. Remove the release lever (1 E- ring).
Page 301 1 August 1988 25. (FT2070) Remove the inner cover (2 screws). (FT2260) Remove the inner cover (5 screws). 26. Lower the top unit. (FT2070) Move the slider fully to the right, then remove the upper left cover (4 screws). (FT2260) Remove the upper left cover (4 screws).
Page 302 1 August 1988 Install the harness bracket on the mounting bracket at the rear of the copier (2 screws). Remove the plastic cap from the docking hole of the upper left cover. Thread the sorter harness through the docking hole and the harness bracket.
Page 303 Run the sorter harness above the total counter bracket, and the connector to couple CN114 on the main board. (FT2260) Run the sorter harness above the operation panel bracket, and couple the connector to CN114 on the main board. Secure the ground wire to the front machine plate (1 screw).
Page 304: Preparation For Transportation
1 August 1988 13. PREPARATION FOR TRANSPORTATION CAUTION: When removing and transporting the sorter, be careful not to carry it in a vertical position as the bins will become dislocated. CAUTION: Before moving the sorter, be sure to prepare it for transportation as follows.
Page 305: Roller Drive Belt Replacement
1 August 1988 14. ROLLER DRIVE BELT REPLACEMENT Remove the front cover [A] (1 screw, 1 connector) and rear cover [B] (1 screw). Lift off the top cover [C]. Remove the top stay [D]. NOTE: Be sure that the short edge of the top stay is facing the exit side of the sorter when reinstalling it.
Page 306: Bin Guide Lubrication
1 August 1988 15. BIN GUIDE LUBRICATION Remove the lower paper guide. (See Roller Drive Belt Replacement sec- tion.) Remove all bins [A] from the bin guides [B]. Apply Grease 501 to the grooves of the bin guides. NOTE: There are three kinds of bins. Therefore, when installing the bins, be sure that they are installed in the correct order.
Page 308 17. SORTER TIMING CHART August 1, 1988 2 COPIES/SORT MODE Exit Sensor (Copier) Paper Sensor Bin Up Bin Drive Motor Bin Down Roller Drive Motor Home Position Switch Sorter Switch Bin Shift Key JAM CHECK J1 : Paper Sensor ON Check J2 : Paper Sensor OFF Check A467...
Page 309 ELECTRICAL COMPONENTS AND 1 August 1988 CONNECTOR LAYOUT-SORTER 5’ Index No. Description Index No Symbol P to P Symbol Type P to P Sorter Main Board CN102 Sorter Main Board PCB1 A5-B7 PCB1 13P/W A5-A6 Paper Sensor CN101 Sorter Main Board PCB1 1 OP/W B5-B6...
Page 310 RICOH FT2260 (A027) P A R T S C A T A L O G RICOH COMPANY, LTD. First Edition July 1988...
Page 311 PARTS CATALOG INTRODUCTION This chapter instructs you the numbers and names of this parts on this machine. INDEX to PARTS CATALOG FT2260 (A027) (A465) DF54 (A467) CS1060 Power Suppy Unit (A947) For DF54...
Page 312 FT2260 (A027) Exterior (A027) ..... . . 2 Color Development Unit ....24 operation Panel (A027) .
Page 313 July 30, ’88 1. EXTERIOR (A027)
Page 314 1. EXTERIOR (A027) July 30, ’88 Index Index Q’ty Per Q’ty Per Part No. Part No. Description Description Assembly Assembly A027 4893 A027 1287 Decal - Cassette Release (LT) Decal - Master Installation A027 1333 A027 1288 Decal - Cassette Release (A4) Front Upper Cover A027 4867 Decal - Operation (LT, Engish)
Page 315 July 30, ’88 2. OPERATION PANEL (A027)
Page 316 PANEL (A027) 2. OPERATION July 30, ’88 Index Index Q’ty Per Part No. Q’ty Per Description Part No. Description Assembly Assembly A027 5512 Operation Panel Ass’y - LT Operation Panel Board - LT A027 5515 A027 5612 Operation Panel Ass’y - A4 Operation panel Board - A4 A027 5615 A027 5513...
Page 317 3. EXPOSURE SECTION (A027) July 30, ’88...
Page 318 3. EXPOSURE SECTION (A027) July 30, ’88 Index Index Q’ty Per Q’ty Per Part No. Part No. Description Description Assembly Assembly A027 1769 Exposure Adjusting Plate - Side A027 1816 Bracket A027 1768 AA05 0033 Exposure Adjusting Plate - Center Scanner Drive Wire 5442 1702 A027 1817...
Page 320 4. LENS SECTION (A027) July 30, ’88 Index Index Q’ty Per Q’ty Per Part No. Part No. Description Description Assembly Assembly A027 1739 Lens Cover AA15 0075 Lens Shield Mylar A027 1674 Front Bracket - 6th Mirror AA05 0031 Lens Drive Wire AA15 0074 Lens Slide Support Mylar AC02 0005...
Page 321 5. PAPER FEED TRAY (A027) July 30, ’88...
Page 322 5. PAPER FEED TRAY (A027) July 30, ’88 Index P e r Index Q ’ t y P e r Q’ty Part No. Description P a r t N o . D e s c r i p t i o n Assembly Assembly 0005...
Page 323 6. UPPER UNIT 1 (A027) July 30, ’88...
Page 324 6. UPPER UNIT 1 (A027) July 30, ’88 Index Index Q’ty Per Q’ty Per Part No. Description Part No. Description Assembly Assembly 0443 0060W Hexagon Head Tapping Screw - M3x6 A027 1910 Left Stay - Exposure Glass 0443 0082W Hexagon Head Tapping Screw - M3x8 A027 5105 Main Board 1105 0196...
Page 325 7. UPPER UNIT 2 (A027) July 30, ’88...
Page 326 July 30, ’88 7. UPPER UNIT 2 (A027) Index Index Q’ty Per Q’ty Per Part No. Part No. Description Description Assembly Assembly AX02 0020 Fan Motor - 115V/60Hz A0271112 FrontLowerHinge AX02 0021 A027 1122 RearTorsion Bar Spring Cooling Fan Motor - 220V/50Hz AX02 0022 Motor - 220V/60Hz 5216 1077...
Page 328 8. MAIN DRIVE SECTION (A027) July 30, ’88 Index Q’ty Per Q'ty Per I n d e x Part No. Part No. Description Description Assembly N o . Assembly 5216 1876 0314 0080B Philips Pan Head Screw - M4x8 Photointerruptor Bracket 0443 0060W Hexagon Head Tapping Screw - M3x6 5216 5245...
Page 329 9. PAPER CASSETTE SECTION (A027) July 30, ’88...
Page 330 9. PAPER CASSETTE SECTION (A027) July 30, ’88 Index Index Q’ty Per Q’ty Per Part No. Part No. Description Description Assembly Assembly 5216 2770 Cassette Body 5216 2844 Friction Pad 5447 2941 Rear Fence 5216 2818 Pad Holder 5216 2764 Right Side Fence 5216 2805 Lock Shaft...
Page 332 10. LOWER UNIT (A027) July 30, ’88 Index Index Q’ty Per Q’ty Per Part No. Part No. Description Description Assembly Assembly 5216 2849 Cassette Tray Guide - Lower 5216 5675 Grounding Wire 5216 5530 Transformer - 115V/31V 5216 5630 Transformer - 220,240V/31V 5216 2848 Cassette Tray Guide - Right 5216 2847...
Page 333 11. BLACK DEVELOPMENT UNIT (A027) July 30, ’88...
Page 334 11. BLACK DEVELOPMENT UNIT (A027) July 30, ’88 Index Index Q’ty Per Q’ty Per Part No. Part No. Description Description Assembly Assembly 5203 3126 A027 3050 Development Unit - Black Gear - 32T 5203 3130 A027 3110 Development Roller Cover Toner End Disk 5216 3080 Toner Metering Blade...
Page 335 12. COLOR DEVELOPMENT UNIT ’88 July 30,...
Page 336 July 30, ’88 12. COLOR DEVELOPMENT UNIT Index Q’ty Per Index Q’ty Per Part No. Description Part No. Description Assembly Assembly 5203 3125 Coupled Gear - 14T/32T A027 3110 Development Roller Cover 5203 3130 Toner End Disk 5927 3091 Toner Metering Blade - Color 5203 3126 Gear - 32T 5927 3130...
Page 337 13. PAPER FEED SECTION (A027) July 30, ’88...
Page 338 13. PAPER FEED SECTION (A027) July 30, ’88 Index Index Q’ty Per Q’ty Per Part No. Part No. Description Description Assembly Assembly 5216 2748 5216 2691 Spring - Paper Feed Solenoid Lower Feed Guide A027 2572 5216 2746 Paper Feed Solenoid 1st Relay Roller 5216 2571 5216 2741...
Page 339 14. REGISTRATION SECTION (A027) July 30, ’88...
Page 340 14. REGISTRATION SECTION (A027) July 30, ’88 Index Q’ty Per Q’ty Per Index Part No. Description Part No. Description Assembly Assembly 5216 2678 Registration Roller Bushing - Rear 5216 2592 Upper Registration Roller 5216 2642 Idle Gear - LOT 5216 2619 Mylar - Upper Guide Plate 5216 2732 Registration Solenoid Bracket...
Page 341 15. FUSING SECTION (A027) July 30, ’88...
Page 342 15. FUSING SECTION (A027) July 30, ’88 Index Index Q’ty Per Q’ty Per Part No. Part No. Description Description Assembly Assembly A027 4163 Front Pressure Lever A027 5425 Thermofuse - 169°C AA06 3060 Fusing Pressure Spring A027 4162 Upper Guide Plate - Fusing AA11 3011 Front Terminal 5216 4099...
Page 344 16. MAIN BOARD (A027) July 30, ’88 Index Q’ty Per Index Q’ty Per Part No. Description Part No. Description Assembly Assembly 1401 0815 Diode - 1S1588:IR A027 5105 Main Board A027 5107 1402 0476 Diode - 1SS184 IC - MPD2756D 1402 0524 Diode - MA1047-L 1407 1016...
Page 346 July 30, ’88 17. OPTICS BOARD (A027) Q’ty Per Index Q’ty Per Index Part No. Description Part No. Description Assembly Assembly 1103 1768 Connector - 2P A027 5120 Optics Board 1103 1770 Wafer - 4P A027 5123 1103 1772 Pin Header - 6P 1103 1774 Pin Header - 8P 1103 1775...
Page 348 18. PCBs 1 (A027) July 30, ’88 Index Q’ty Per Index Q’ty Per Part No. Description Part No. Description Assembly Assembly A027 5560 Drive Board - 115V 1402 0407 Zener Diode - HZ-6B3 A027 5561 AC Drive Board - 220/240V 1402 0416 Zener Diode - HZ58 - 1 A027 5541...
Page 350 19. PCBs 2 (A027) July 30, ’88 Index Q’ty Per Index Q’ty Per Part No. Description Part No. Description Assembly Assembly A027 5445 Fusing Power Supply Board - 115V 1602 0940 Noise Killer - 0.1µF 10 OHM A027 5645 Fusing Power Supply Board - 220/240V 1606 0689 Capacitor - 0.01MF 50V AZ22 0004...
Page 352 20. HARNESSES (A027) July 30, ’88 AC HARNESS U P P E R F R O N T H A R N E S S Index Q’ty Per Index Q’ty Per Sketch No. Parts No. Description Parts No. Description Sketch No. Assembly Assembly A027 5361...
Page 353 21. SPECIAL TOOL (A027) July 30, ’88...
Page 354 21. SPECIAL TOOL (A027) July 30, ’88 Index Index Q’ty Per Q’ty Per Part No. Part No. Description Description Assembly A s s e m b l y 5216 9003 Positioning Ring 5420 9502 Test Chart - OS-A3 5420 9507 Digital Multimeter 5420 9508 Deluxe Test Lead...
Page 355 PARTS INDEX...
Page 356 July 30, ’88 Page and Page and Parts No. Description Parts No. Description Index No. Index No. A027 1072 Release Hook - Master Unit A027 1683 Lens Holder 15-30 9-34 A027 1091 Release Lever A027 1684 3-39 Shielding Guide 9-39 A027 1112 Front Lower Hinge A027 1685...
Page 357 July 30, ’88 Page and Page and Parts No. Description Parts No. Description Index No. Index No. A027 1826 A027 3150 Left Wire Pulley Front Side Plate - Development 7-47 23-10 A027 3150 A027 1828 Wire Pulley Front Side Plate - Development 25-10 7-46 A027 1831...
Page 358 July 30, '88 Page and Page and Parts No. Description Description Parts No. Index No. Index No. A027 5105 A027 5536 Main Board Anticondensation Heater - 10W, 115V 13-2 9-12 A027 5541 A027 5105 Main Board Noise Filter Board - 115V 33-* 21-20 A027 5541...
Page 359 July 30, ’88 Page and Page and Parts No. Description Parts No. Description Index No. Index No. AA00 0015 AA11 4207 Deca1 - High Temperature Lighter Key 5-17 31-30 AA02 0001 AA11 4208 Drawer Tray Magnet Darker Key 5-16 11-35 AA02 0003 Slide Lever Magnet AA11 4209...
Page 360 Iy 30, ’88 Page and Page and Parts No. Description Parts No. Description Index No. Index No. AX05 0012 AB01 3201 Gear - LOT DC Motor - 24V 31-49 7-49 AB01 3224 Gear - 20T AX52 0002 Exposure Lamp - 97V/300W (115V) 31-42 7-10 AX52 0003...
Page 361 Iy 30, ’88 Page and Page and Parts No. Parts No. Description Description Index No. Index No. 5203 2060 5214 2080 Corona Wire Screw - M3x4 Thumb Screw - M4x5 9-23 29-17 5203 2060 5214 3100 Gear - 24T Corona Wire Screw - M3x4 23-27 9-20 5203 2061...
Page 362 July 30. ’88 Page and Page and Description Parts No. Description Parts No. Index No. Index No. 5216 1176 Belt Tension Pulley 5216 2613 Upper Guide Plate - Registration 29-5 17-18 5216 1177 Holder - Belt Tension Pulley 5216 2615 2nd Relay Roller - Upper 29-6 17-19...
Page 363 July 30, ’88 Page and Page and Parts No. Description Description Parts No. Index No. Index No. 5216 2746 Paper Feed Solenoid 21-4 27-37 5216 2847 Cassette Tray Guide - Left 5216 2748 Spring - Paper Feed Solenoid 5216 2848 Cassette Tray Guide - Right 21-3 27-36...
Page 364 July 30. ’88 Page and Page and Parts No. Description Parts No. Description Index No. Index No. 5216 3133 Drive Spring - Toner End 5220 1121 Front Torsion Bar Spring 15-18 23-19 5216 3133 Drive Spring - Toner End 5220 1124 Hook - Rear Torsion Bar Spring 15-13 25-26...
Page 365 July 30, ’88 Page and Page and Parts No. Parts No. Description Description Index No. Index No. 5220 5871 5220 2629 Output Gear - 60Hz Lever - Paper Length Detection 17-5 11-!43 5304 1639 5220 2632 Bushing - 8mm Center Fence - Paper Tray 29-8 11-6 5220 2636...
Page 366 July 30, ’88 Page and Page and Description Parts No. Description Parts No. Index No. Index No. 5927 3105 Toner End Spring - Color 0313 0040W 25-37 Philips Pan Head Screw - M3x4 7-102 5927 3114 Toner Supply Roller 0313 0050W Philips Pan Head Screw - M3x5 25-20 27-104...
Page 367 Julv 30. ’88 Page and Page and Parts No. Parts No. Description Description Index No. Index No. 0434 0080W 0720 0030E Tapping Screw - 114x8 Retaining Ring - M3 21-101 17-107 0443 0060W 0720 0030E Hexagon Head Tapping Screw - M3x6 Retaining Ring - M3 11-101 19-104...
Page 368 July 30, ’88 Page and Page and Parts No. Description Parts No. Description Index No. Index No. 1100 1329 0805 3162 Socket Contact Ball Bearing - 10x19x7mm 41-21 23-105 1100 1329 0805 3162 Socket Contact Ball Bearing - 10x19x7mm 25-108 41-22 0805 3385 1100 1329...
Page 369 July 30, ’88 Page and Page and Parts No. Description Parts No. Description Index No. Index No. 1102 0185 Connector - 4P 41-46 1102 2010 Socket Housing - 2P 41-32 1102 0484 Connector - 3P 1102 2014 Socket Housing - 6P 41-29 37-102 1102 0717...
Page 370 July 30. ’88 Page and Page and Parts No. Description Parts No. Description Index No. Index No. 1204 1575 DIP Switch - 4P 1103 1795 Pin Header - 15P (RED) 35-110 33-111 1204 1576 Main Switch 1103 1796 Pin Header - 2P 27-8 39-104 1204 1586...
Page 371 July 30, ’88 Page Page and Parts No. D e s c r i p t i o n Parts No. D e s c r i p t i o n Index No. Index No. 1405 0152 Rectifier - 1J4B42 1601 8461 Variable Resistor - 300K O, 0.5W 33-134...
Page 372 JULY Page and Page and Parts No. D e s c r i p t i o n Parts No. D e s c r i p t i o n Index No. Index No. 1607 0071 Inductor Coil 1622 4702 Resistor - 47.2K OHM l/4W ±1% 39-144 37-147...
Page 373 DF54 (A465)
Page 374 DF54 (A465) 1. Exterior & Transport Section (A465) ..2 2. Feed-in Section (A465) ....4 3. Invert& Exit Section (A465) ... . . 6 4.
Page 375: Exterior & Transport Section (A465)
1. EXTERIOR & TRANSPORT SECTION (A465) July 30, ’88...
Page 376 1. EXTERIOR & TRANSPORT SECTION (A465) July 30, ’88 Index Q’ty Per Index Q’ty Per Part No. Description Part No. Description Assembly Assembly A465 1337 Decal - Original Table - LT A465 1117 Transport-Belt A465 1338 Decal - Original Table - A4 A422 1114 Driven Roller - Transport Belt A422 1335...
Page 377: Feed-In Section (A465)
2. FEED–IN SECTION (A465) July 30, ’88...
Page 378 2. FEED–IN SECTION (A465) July 30, ’88 Index Index Q’ty Per Q’ty Per Part No. Part No. Description Description Assembly Assembly A422 1503 Idle Shaft A437 1066 Guide Mylar A422 1042 A422 1066 Stopper Gear - 22T A422 1057 Pull-out Bracket A422 1046 Pick-up Roller 5413 3903...
Page 379: Invert& Exit Section (A465)
3. INVERT & EXIT SECTION (A465) July 30, ’88...
Page 380 3. INVERT & EXIT SECTION (A465) July 30, ’88 Index Index Q’ty Per Q’ty Per Part No. Description Assembly Assembly A465 1499 A422 1275 Front Side Plate - Feed-out Right Hinge A422 1230 A422 1121 Right Bracket - Right Hinge Invertor Pawls A422 1210 A422 1120...
Page 381: Main Board (A465)
(A465) 4. MAIN BOARD...
Page 382 4. MAIN BOARD (A465) July 30, ’88 Index Q’ty Per Index Q’ty Per Part No. Description Part No. Description Assembly Assembly 1102 2966 Connector - HIF3BA - 34PA A465 5170 Main Board 1103 0881 Connector - 4P A422 5350A IC - HCTL-3 1103 1726 Connector - 4P IC- 8x16384 250NS...
Page 383: Indication Board (A465)
July 30, ’88 5. INDICATION BOARD (A465)
Page 384 5. INDICATION BOARD (A465) July 30, ’88 Index Index Q’ty Per Q’ty Per Part No. Description Part No. Description Assembly Assembly A465 5260 Indication Board 1100 1306 Terminal 1100 1328 Contact 1102 1805 Insulating Sleeve 1102 1967 Connector - 6P 1403 0236 L.E.D.
Page 385: Main Harness (A465)
HARNESS (A465) 6. MAIN July 30, ’88...
Page 386 July 30, ’88 6. MAIN HARNESS (A465) Q’ty Per Index Index Q’ty Per Part No. Description Part No. Description Assembly Assembly 1100 0340 Closed Terminal A422 5200 Main Harness 1100 1169 Fastening Receptacle 1100 1253 Pin - Mate-N-Lock 1100 1327 Contact 1100 1348 Pin Contact...
Page 387: Interface Harness (A465)
7. INTERFACE HARNESS (A465) July 30, ’88...
Page 388 7. INTERFACE HARNESS (A465) Index Index Q’ty Per Part No. Description Part No. Description Assembly 1100 0051 A465 5205 Interface Harness Connector 1100 1190 Socket - Mate-N-Lock 1100 1447 Socket - Mate-N-Lock 1102 1374 Connector - 5265-4P 1102 1517 Connector - 4P...
Page 389: Parts Index
PARTS INDEX...
Page 390 July 30. ’88 Page and Page and Parts No. Parts No. Description Description Index No. Index No. A465 1100 AA14 3005 Front Frame Stepped Screw - M4x2.5 3-23 3-27 A465 1110 Magnet Catch Spacer AA14 3005 Stepped Screw - M4x2.5 5-19 3-55 A465 1117...
Page 391 July 30, ’88 Page and Page and Description Parts No. Description Index No. Index No. A422 1068 A422 1187 Relay Roller Belt Guide - Frost Right 3-29 5-13 A422 1069 A422 1188 Friction Roller Belt Guide - Rear Right 3-42 5-72 A422 1070 A422 1210...
Page 392 July 30, ’88 Page and Page and Parts No. Description Description Parts No. lndex N Index No. A422 1356 Pin - 3x26mm A422 5310 Feed-out Motor - DC10W 7-26 5-70 A422 1361 Rack - Side Guide A422 5350A IC - HCTL-3 A422 1366 Front Side Guide A437 1026...
Page 393 July 30, ’88 Page and Page and Parts No. Description Parts No. Description Index No. Index No. 0313 0040W Philips Pan Head Screw - M3x4 0720 0040E Retaining Ring - M4 7-109 5-105 0313 0040W Philips Pan Head Screw - M3x4 0720 0050E Retaining Ring - M5 3-110...
Page 394 July 30. ’88 Page and Page and Parts No. Description Description Parts No. Index No. Index No. 1102 0958 Connector - 2P 1204 1385 Push Switch 9-114 9-103 1102 1374 Connector - 5265-4P 1401 0282 Transistor - 2SB20 15-104 9-115 1102 1408 Receptacle Housing - 1P 1401 0329...
Page 395 July 30, ’88 Page and Page and Description Parts No. Description Index No. Parts No. Index No. 1604 1386 Capacitor - 100MF 50V 9-147 1604 1390 Capacitor - 1000µF 50V 9-148 1605 0141 Capacitor- 4700PF 50V 9-150 1606 0658 Capacitor - 0.1µF 50V 9-151 1606 1308 Capacitor - 27PF 50V...
Page 396 CS1060 (A467)
Page 397 Sorter (A467) 1. Sorter (A467) ......2 2. Sorter Main Board (A467) ....4 3.
Page 398: Sorter (A467)
1. SORTER (A467) July 30, ’88...
Page 399 1. SORTER (A467) July 30, ’88 Index Index Q ’ t y P e r Q’ty Per P a r t N o . Part No. D e s c r i p t i o n D e s c r i p t i o n Assembly Assembly A467 3011...
Page 400: Sorter Main Board (A467)
SORTER MAIN BOARD (A467) July 30, ’88...
Page 401 2. SORTER MAIN BOARD (A467) July 30, ’88 Q'ty Per Q'ty Per Index Index Description Sketch No. Parts No. Description Sketch No. Parts No. Assembly Assembly 6801 5510 Main Board IC101 1408 0408 IC - PST518A IC102 1407 1807 IC - TC40H151P IC103 1407 1698 IC - TD62801P...
Page 403: Main Harness (A467)
3. MAIN HARNESS (A467) July 30, ’88 Index Q’ty Per Index Q’ty Per Parts No. Description Description Sketch No. ketch No Parts No, Assembly Assembly — 6801 5600 Sorter Main Harness – 115V 6801 5630 Sorter Main Harness - 220/240V CN102 1102 1921 Connector –...
Page 404: Parts Index
PARTS INDEX...
Page 405 Page and Page and Parts No. Description Parts No. Description Index No. Index No. A467 1010 Sorter Frame A414 3111 Sorter Bin - Odd 3-33 3-35 A467 3011 Sorter Bin - Top A414 3151 Sorter Bin - E v e n 3-36 A467 5410 Operation Panel - AL...
Page 406 July 30, ’88 Page and Page and Description Parts No. Description Parts No. Index No. Index No. 6802 7070 Base Roller 3-74 6801 7510 Reed Switch Magnet 3-66 3-75 6802 7125 Magnet - Sorter Mounting Base 6801 7521 Bracket - Interface Harness 3-67 6802 7131 Mounting Lock...
Page 407 July 30. ’88 Page and Page and Parts No. Description Parts No. Description Index No. Index No. 0313 0050W Philips Pan Head Screw - M3x5 1107 0406 Fuse - 250V,0.5A 3-109 3-113 0313 0100W Philips Pan Head Screw - M3x10 1107 0406 Fuse - 250V,0.5A 5-20...
Page 408 Power Suppy Unit (A947) F o r D F 5 4...
Page 409 Power Supply Unit (A947) 1. Accessories (A947) ..... 2 2. interface Board (A947) ....4 3.
Page 410: Accessories (A947)
1. ACCESSORIES (A947) July 30, ’88...
Page 411 1. ACCESSORIES (A947) July 30, ’88 Q’ty Per Index Index Q’ty Per Part No. Description Part No. Description Assembly Assembly A947 5200 0314 0060M Philips Pan Head Screw - M4x6 Interface Harness A947 1001 Harness Bracket 0314 0060W Philips Pan Head Screw - M4x6 A947 1000 0704 0040C Toothed Washer - M4...
Page 412 July 30, ’88 2. INTERFACE BOARD RESISTOR CONNECTOR SYMBOL INDEX SYMBOL INDEX CN251 CN252...
Page 413: Interface Board (A947)
2. INTERFACE BOARD Q’ty Per Index Q’ty Per Index Part No. Description Part No. Description Assembly Assembly 1103 1784 A947 5000 Interface Board Pin Header - 4P A465 5210 Fiber Connector - 2P 1611 4121 Resistor - 120 OHM l/4T ±5% 1611 4202 Resistor - 2K OHM l/4T ±5%...
Page 414: Interface Harness (A947)
3. INTERFACE HARNESS July 30, ’88...
Page 415 3. INTERFACE NARNESS July 30, ’88 Index Q’ty Per Index Q’ty Per Part No. Description Part No. Description Assembly Assembly A947 5200 Interface Harness 1100 0504 Closed Terminal - 44mm 1100 1238 Pin - Mate-N-Lock 1100 1239 Pin - Mate-N-Lock 1100 1329 Socket Contact 1102 1509...
Page 416: Parts Index
PARTS INDEX...
Page 417 July 30, ’88 Page and Page and Parts No. Description Parts No. Description Index No. Index No. A947 1000 Bracket - Power Supply Unit AZ22 0002 DC Power Supply Board - 115V A947 1001 Harness Bracket AZ22 0003 DC Power Supply Board - 220/240V A947 5000 Interface Board A465 5210...
Page 418 July 30, ’88 Page and Page and Parts No. Description Parts No. Description Index No. Index No. 0314 0060M Philips Pan Head Screw - M4x6 3-101 0314 0060W Philips Pan Head Screw - M4x6 3-102 0704 0040C Toothed Washer - M4 3-103 1100 0504 Closed Terminal - 44mm...

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