Ricoh Grand Kingfisher A245 Service Manual
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IMPORTANT SAFETY NOTICES
PREVENTION OF PHYSICAL INJURY
1. Before disassembling or assembling parts of the copier and peripherals,
make sure that the copier power cord is unplugged.
2. The wall outlet should be near the copier and easily accessible.
3. Note that the optional tray heater and the optional anti-condensation
heaters are supplied with electrical voltage even if the main switch is
turned off.
4. If any adjustment or operation check has to be made with exterior
covers off or open while the main switch is turned on, keep hands away
from electrified or mechanically driven components.
5. The inside and the metal parts of the fusing unit become extremely hot
while the copier is operating. Be careful to avoid touching those
components with your bare hands.
HEALTH SAFETY CONDITIONS
1. Toner and developer are non-toxic, but if you get either of them in your
eyes by accident, it may cause temporary eye discomfort. Try to remove
with eye drops or flush with water as first aid. If unsuccessful, get
medical attention.
OBSERVANCE OF ELECTRICAL SAFETY STANDARDS
1. The copier and its peripherals must be installed and maintained by a
customer service representative who has completed the training course
on those models.
SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL
1. Do not incinerate toner cartridges or used toner. Toner dust may ignite
suddenly when exposed to open flame.
2. Dispose of used toner, developer, and organic photoconductors in
accordance with local regulations. (These are non-toxic supplies.)
3. Dispose of replaced parts in accordance with local regulations.

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Summary of Contents for Ricoh Grand Kingfisher A245

  • Page 1 IMPORTANT SAFETY NOTICES PREVENTION OF PHYSICAL INJURY 1. Before disassembling or assembling parts of the copier and peripherals, make sure that the copier power cord is unplugged. 2. The wall outlet should be near the copier and easily accessible. 3. Note that the optional tray heater and the optional anti-condensation heaters are supplied with electrical voltage even if the main switch is turned off.
  • Page 2 Grand Kingfisher (Machine Code:A245) Service Manual – Insert Version – The A245 copier is based on the A219 copier. Only the differences from the A219 copier are described in the following pages. Refer to the A219 copier service manual regarding the other information.
  • Page 3: Specifications

    26 September 1997 SPECIFICATIONS 1. SPECIFICATIONS NOTE: Only items marked with are different from the A219 copier. Configuration: Desktop Copy Process: Dry electrostatic transfer system Originals: Sheet/Book Original Size: Maximum: A3/11" x 17" Copy Paper Size: Maximum: A3/11" x 17" Minimum: A5/5 "...
  • Page 4 SPECIFICATIONS 26 September 1997 Automatic Reset: 1 minute standard setting; can also be set to 3 minutes or no auto reset Paper Capacity: Paper tray: 250 sheets or less than 30 mm stack height By-pass feed entrance: Standard paper 80 sheets 10 sheets Others 1 sheet...
  • Page 5 26 September 1997 SPECIFICATIONS Noise Emissions: Sound pressure level (the measurements are made in accordance with ISO 7779 at the operator position.) Copier only Full system* Copying 58 dB or less 62 dB or less *Full system: Copier with document feeder and 10-bin sorter Sound power level (the measurements are made in accordance with ISO 7779) Copier only...
  • Page 6: Mechanical Component Layout

    MECHANICAL COMPONENT LAYOUT 26 September 1997 2. MECHANICAL COMPONENT LAYOUT NOTE: The paper feed area has been changed. A245V500.wmf 1. 2nd Mirror 11. 5th Mirror 20. Development Roller 2. 1st Mirror 12. Toner Bottle Holder 21. Transfer/Separation Unit 3. Exposure Lamp 13.
  • Page 7: Drive Layout

    26 September 1997 DRIVE LAYOUT 3. DRIVE LAYOUT NOTE: The paper feed area has been changed. A245V501.wmf 1. Lens Motor 8. Upper Relay Roller Clutch Gear 2. Fusing Unit Drive Gear 9. By-pass Paper Feed Clutch 3. Main Motor 10. Registration Clutch Gear 4.
  • Page 8: Paper Path

    PAPER PATH 26 September 1997 4. PAPER PATH NOTE: The paper feed area has been changed. A245V502.wmf 1. By-pass Feed 2. Lower Paper Tray Feed 3. Upper Paper Tray Feed 4. Copy Tray...
  • Page 9: Electrical Component Descriptions

    26 September 1997 ELECTRICAL COMPONENT DESCRIPTIONS 5. ELECTRICAL COMPONENT DESCRIPTIONS Refer to the electrical component layout and the point-to-point diagram on the waterproof paper in the pocket for symbols and index numbers. Symbol Name Function Index No. Motors Main Motor Drives all the main unit components except for the optics unit and fans.
  • Page 10 ELECTRICAL COMPONENT DESCRIPTIONS 26 September 1997 Symbol Name Function Index No. ADS Sensor Detects the background density of the original. Upper Tray Paper Informs the CPU when the upper paper tray End Sensor runs out of paper. Registration Sensor Detects the leading edge of the copy paper to determine the stop timing of the relay roller clutch, and detects misfeeds.
  • Page 11 26 September 1997 ELECTRICAL COMPONENT DESCRIPTIONS Symbol Name Function Index No. Lower Tray Heater Turns on when the main switch is off to keep (Option) paper in the lower paper tray dry. Exposure Lamp Provide back-up overheat protection around Thermofuse the exposure lamp.
  • Page 12: Paper Feed

    PAPER FEED 26 September 1997 6. PAPER FEED 6.1 OVERVIEW A245D500.wmf There are two paper trays and a by-pass feed table [A]. The upper [B] and lower [C] paper trays each hold 250 sheets. The by-pass feed table can hold 1, 10, or 80 sheets of paper, depending on the paper type. The semicircular feed rollers [D] drive the top sheet of paper from the tray to the registration rollers [E] through the relay rollers [F].
  • Page 13: Paper Lift Mechanism

    26 September 1997 PAPER FEED 6.2 PAPER LIFT MECHANISM A245D501.wmf When the paper tray [A] is closed after paper is loaded, the release slider [B], which is mounted on the bottom part of the tray, is pushed by the projection [C] on the main frame and the release slider comes off the bottom plate hook [D].
  • Page 14 PAPER FEED 26 September 1997 6.3 PAPER FEED AND DRIVE MECHANISM A245D502.wmf A245D503.wmf Through several gears and a timing belt, main motor rotation is transmitted to the tray paper feed clutch gear [A] and the relay roller clutch gear [B]. -Feed rollers- The tray paper feed clutch gear is on the same shaft as the semicircular feed rollers [C].
  • Page 15: Paper Feed And Misfeed Detection Timing

    26 September 1997 PAPER FEED 6.4 PAPER FEED AND MISFEED DETECTION TIMING (seconds) A4 sideways Start Key Main Motor 0.30 0.55 Upper Tray Paper Feed Clutch 0.30 0.10 Upper Relay Roller Clutch 2.13 Registration Clutch 2.05 6.50 Registration Sensor 4.48 6.78 Exit Sensor A245D508.wmf...
  • Page 16: Image Fusing

    IMAGE FUSING 26 September 1997 7. IMAGE FUSING 1. Both the hot roller and pressure roller for the A245 are different from the A219. To distinguish between the two types of roller, check the end of the roller shaft as described below. - A219 - - A245 - HOT ROLLER...
  • Page 17: Installation

    26 September 1997 INSTALLATION 8. INSTALLATION 8.1 COPIER ACCESSORY CHECK Check the quantity and condition of the accessories in the box against the followings list: 1. Model Name Decal (-10, -22 machines) 2. Symbol Explanation Decal - Multi-language 3. Installation Procedure - Multi-language (-10, -15, -22, -26 machines) 4.
  • Page 18: Copier Installation Procedure

    INSTALLATION 26 September 1997 8.2 COPIER INSTALLATION PROCEDURE A245I500.wmf A245I506.wmf A245I501.wmf CAUTION Do not plug in the power cord before starting the following procedure. 1. Remove all strips of tape shown above. 2. Pull out the paper trays [A], and remove the cardboards [B]. 3.
  • Page 19 26 September 1997 INSTALLATION A245I502.wmf A245I503.wmf 6. Turn the "B1" lever [A] counterclockwise to lower the transfer corona unit. 7. Remove the knob screw [B] and gently pull out the imaging unit [C]. Then place it on a clean sheet of paper. 8.
  • Page 20 INSTALLATION 26 September 1997 A245I504.wmf 11. Install the toner bottle holder [A] in the copier as shown. 12. Shake the toner bottle [B] well. NOTE: Do not remove the bottle cap [C] of the toner bottle at this time. 13. Unscrew the bottle cap and insert the toner bottle into the holder, so that the rib [D] rides the rail [E].
  • Page 21 26 September 1997 INSTALLATION A245I505.wmf 15. Pull the paper tray [A] out and turn the paper size dial [B] to select the appropriate size. Adjust the side guides [C] and the end guide [D] to match the paper size. NOTE: 1) Make sure the stack of paper is aligned, and that there is no space between the side guides and the paper stack.
  • Page 22: Lower Tray

    INSTALLATION 26 September 1997 8.3 UPPER AND LOWER TRAY HEATER INSTALLATION (OPTION) A245I507.wmf NOTE: 1) The optional tray heaters keep copy paper dry. In humid environments, copy paper may crease as it comes out of the fusing unit. The heaters are available as service part. (See the parts catalog.) 2) Tell the customer that even when the copier main switch is turned off, the copier power cord should be plugged in.
  • Page 23 26 September 1997 INSTALLATION A245I507-2.wmf - UPPER TRAY - 4. Mount the heater bracket while passing the connector [I] through the round opening [J] in the copier main frame as shown (1 screw). 5. Locate the red two-pin connector [K] at the rear of the copier, and connect it to the heater’s connector (red), as shown.
  • Page 24: Program Mode

    PROGRAM MODE 26 September 1997 9. PROGRAM MODE 9.1 SP MODE QUICK REFERENCE TABLE NOTE: 1) Items written in bold italic letters are newly added service programs. 2) Items written in bold are modified service programs. SP Mode SP Mode Function Function Forced Start (Free Run)
  • Page 25 26 September 1997 PROGRAM MODE SP Mode SP Mode Function Function Forced Toner Supply Factory Data and Counter Clear User Code Counter Clear Correction Value TD Sensor Initial Setting Correction Reset TD Sensor Initial Output Display Correction Reset Correction Selection Correction Reset Imaging Unit Counter Display Toner End Force Cancel...
  • Page 26: Service Program Mode Table

    PROGRAM MODE 26 September 1997 9.3 SERVICE PROGRAM MODE TABLE 1. In the Function column, comments (extra information) are in italics. 2. In the Settings column, the default value is printed in bold letters. 3. If there is a mark in the Mode No. column, copies can be made within this SP Mode.
  • Page 27 26 September 1997 PROGRAM MODE Mode No. Function Settings Input Check † Enter the desired number given in the following table. The magnification indicator is used to display the input data from the sensors while making a normal copy. Press the key to perform this mode.
  • Page 28 PROGRAM MODE 26 September 1997 Mode No. Function Settings Output Check Use to turn on individual electrical components. Enter the desired number given in the following table. Press the key to turn on the electrical component. Press the key to turn off the electrical component.
  • Page 29 26 September 1997 PROGRAM MODE Mode No. Function Settings Scanner Free Start a scanner free run. Press the key to start the free run. Press the key to stop the free run. This mode is performed in accordance with the selected paper size and magnification ratio.
  • Page 30 PROGRAM MODE 26 September 1997 Mode No. Function Settings A3/DLT Specifies whether the counter is doubled for A3/DLT 0: OFF Double Count paper. 1: ON If "ON" is selected, the total counter, electrical total counter (SP88), and the current user code counter count up twice when A3/DLT copy paper is used.
  • Page 31 26 September 1997 PROGRAM MODE Mode No. Function Settings Toner Supply Determines how much toner is supplied in fixed 0 ~ 7 Amount supply mode and in detect supply (fixed amount) Default = 0 (Fixed Supply mode. Mode) For example, if the user normally makes copies of A4 originals that are about 7% black, select the 7% setting for best results.
  • Page 32 PROGRAM MODE 26 September 1997 Mode No. Function Settings Image Density Selects the image density level in ADS mode. 0: Normal Adjustment The development bias and the exposure lamp 1: Light 2: Dark (ADS Mode) † voltages are increased or decreased. This adjustment affects copies made in ADS mode.
  • Page 33 26 September 1997 PROGRAM MODE Mode No. Function Settings Toner Density Adjusts copy quality by changing the toner 0: Normal Adjustment concentration inside the development unit. 1: Darker 2: Lighter This can be adjusted using a UP mode. 3: Darkest See "Detailed Descriptions - Toner Supply Control"...
  • Page 34 PROGRAM MODE 26 September 1997 Mode No. Function Settings Light Intensity Clean the optics, then adjust the exposure lamp 120 V Machines Adjustment † voltage. The V and V corrections are reset 100 ~ 194 automatically when entering this mode. Default = 140 230 V Machines Lamp Voltage (V)
  • Page 35 26 September 1997 PROGRAM MODE Mode No. Function Settings Fusing Displays the fusing temperature detected by the Temperature fusing thermistor. Display † Press the key to monitor the temperature during the normal copy cycle. TD Sensor If the setting of SP30 (Toner Supply Mode 1 ~ 200 Target Control Selection) is 1 or 3, this value is used for the TD...
  • Page 36 PROGRAM MODE 26 September 1997 Mode No. Function Settings Correction Sets the interval for V correction. The exposure 0 ~ 8 Interval lamp voltage (SP48) is increased by 1 step at the Default = 2 set copy count interval. SP Setting Exposure Lamp Note +2 steps/8,000 copies...
  • Page 37 26 September 1997 PROGRAM MODE Mode No. Function Settings Imaging Unit Shows the total number of copies made so far by Counter the imaging unit installed in the machine. This Display counter is reset by SP93. The first three digits are displayed in the magnification indicator.
  • Page 38 PROGRAM MODE 26 September 1997 Mode No. Function Settings Auto Shut Off Selects the "Automatic Shut off" mode. 0: Yes (Energy Star) 1: No The copier automatically shuts itself off at the auto On/Off Default = 0 (NA) shut off time selected (SP14). Default = 1 (Others) Auto Energy...
  • Page 39 26 September 1997 PROGRAM MODE Mode No. Function Settings Toner End The Toner End condition is canceled forcibly. Force Cancel By pressing the key to enter this SP mode, the toner end condition is canceled. Service Call Resets a service call (E5) condition. (E5) Reset Turn the main switch off and on to check if the service call condition is reset.
  • Page 40 PROGRAM MODE 26 September 1997 Mode No. Function Settings Lower Paper Displays the total (electrical) copy counter for the Feed Tray lower paper feed tray. Copy Counter Since the copy counter for displaying the current SP Display mode number has only 2 digits, the manual image density indicator is used to display the first digit.
  • Page 41: Preventive Maintenance Schedule

    26 September 1997 PREVENTIVE MAINTENANCE SCHEDULE 10. PREVENTIVE MAINTENANCE SCHEDULE 10.1 MODIFIED PM TABLE Below lists the modified PM table for the A219 and A245 copiers. This information is also released in A219 RTB no. 1. NOTE: 1) The amounts mentioned as the PM interval indicate the number of copies.
  • Page 42 PREVENTIVE MAINTENANCE SCHEDULE 26 September 1997 45 k 90 k 135 k 180 k Notes Cleaning Cleaning Blade Apply setting powder Inside the Cleaning Unit Remove all toner and developer Cleaning Entrance Seal Dry cloth. Replace if necessary Development Unit Developer Development Unit Entrance Seal...
  • Page 43 26 September 1997 PREVENTIVE MAINTENANCE SCHEDULE 45 k 90 k 135 k 180 k Notes Exit and Registration Sensors Bearings Ozone Filter Vacuum cleaner or blower brash Driving Belts 80 k 160 k Notes DOCUMENT FEEDER (A662) (for originals) Transport Belt Clean with belt cleaner at copier PM Friction Belt...
  • Page 44: Replacement And Adjustment

    REPLACEMENT AND ADJUSTMENT 26 September 1997 11. REPLACEMENT AND ADJUSTMENT 11.1 PAPER FEED ROLLER REPLACEMENT A245R500.wmf Paper Feed Rollers 1. Remove both paper trays. 2. Remove the front door and the inner cover only when replacing the 1st paper feed roller. 3.
  • Page 45 26 September 1997 REPLACEMENT AND ADJUSTMENT 11.2 RELAY ROLLER CLUTCH AND PAPER FEED CLUTCH REPLACEMENT [L] [M] A245R502.wmf A245R501.wmf 1. Turn off the main switch and unplug the power supply plug. 2. Remove the rear cover and the rear right cover. (See Rear Cover Removal.) 3.
  • Page 46: Paper Size Switch Replacement

    REPLACEMENT AND ADJUSTMENT 26 September 1997 11.3 PAPER SIZE SWITCH REPLACEMENT A245R503.wmf 1. Remove the front right cover. (See Exterior and Inner Covers Removal.) 2. Remove the both paper trays. 3. Remove the brackets [A] (2 screws each). 4. Remove the paper size switch bracket [B] (3 screws). 5.
  • Page 47: Paper End Sensors

    26 September 1997 REPLACEMENT AND ADJUSTMENT 11.4 PAPER END SENSORS A245R504.wmf 1. Remove both paper trays. 2. Remove the rear cover. (See Exterior and Inner Covers Removal.) 3. Remove the paper end sensor assemblies [A] (1 screw and 1 connecotr each).
  • Page 48: Regular Pm Procedure

    REGULAR PM PROCEDURE 26 September 1997 12. REGULAR PM PROCEDURE Every 90 k Others Every 45 k 1. Make a copy Make a copy of an OS-A3 test chart at manual image density level 4. 2. Optics (every 45 k) 1.
  • Page 49 26 September 1997 REGULAR PM PROCEDURE 4. Remove all toner, developer and the drum from the imaging unit. Clean the whole imaging unit, especially the lower cover with a dry cloth. 5. Inspect the development entrance seal, toner supply unit, and development drive gears in the imaging unit (lubricate the latter with 2 or 3 spots of CPL501).
  • Page 50 REGULAR PM PROCEDURE 26 September 1997 7. Fusing Unit 1. Clean the stripper pawls with a suitable (every 45 k) solvent. (Replace every 135 k.) 2. Clean the fusing entrance and exit guide plates with a suitable solvent. Replace the hot 3.
  • Page 51: Service Call Conditions

    26 September 1997 SERVICE CALL CONDITIONS 13. SERVICE CALL CONDITIONS Only the following SC codes have been changed or added from the base copier. (SC codes 14 and 96 were not listed in the base copier’s service manual, and a RTB has been released.) CODE #14 —...
  • Page 52 SERVICE CALL CONDITIONS 26 September 1997 CODE #53 — FUSING ERROR 2 - Definition - • The temperature detected by the thermistor becomes higher than 255°C during copying, or 245°C during stand-by. To clear this error, refer to note 3 at the beginning of this chapter in the base copier’s manual.
  • Page 53 26 September 1997 SERVICE CALL CONDITIONS CODE #55 — FUSING ERROR 4 - Definition - • The temperature value output by the thermistor does not change at all 23 (NA) or 26 (EU) seconds after the main switch is turned on. •...
  • Page 54 COPIER TIMING CHART (A245) ( S e c o n d s ) 1st Original Leading Edge 2nd Original Leading Edge 3rd Original Leading Edge 2 . 3 0 5 . 6 3 8 . 9 6 Start key 4 . 2 0 7 .
  • Page 55 COPIER (A245) ELECTRICAL COMPONENT LAYOUT A245S500.wmf...
  • Page 56 SORTER (A657) ELECTRICAL COMPONENT LAYOUT A657S500.wmf Description Index No. P to P Location Sorter Main Board (PCB1) Wheel Switch (SW1) Roller Drive Motor (M1) Paper Sensor (S1) Bin Drive Motor (M2) Sorter Switch (SW2) Home Position Switch (SW3)
  • Page 57 DF (A662) ELECTRICAL COMPONENT LAYOUT A662S501.img A662S500.img Description Index No. P to P Location Pick-up Solenoid (SOL1) Registration Sensor (S3) Original Set Sensor (S2) Feed Clutch (CL1) Pulse Generator Sensor (S1) DF Motor (M1) Insert Original Indicator (LED2) SADF Indicator (LED1) Lift Switch (SW1) DF Main Board (PCB1) DF Transformer (TR1)
  • Page 58 A245S501.wmf...
  • Page 59 A245S502.wmf...
  • Page 60 Description Index No. P-to-P Location Main Control Board (PCB1) High Voltage Supply Board - C/G/B/T/S (PCB2) AC Drive/DC Power Supply Board (PCB3) Erase Lamp (L1) Quenching Lamp (L2) Operation Panel Board (PCB4) Exhaust Fan Motor (M7) Main Motor (M1) Scanner Drive Motor (M2) Toner Supply Motor (M5) Registration Clutch (CL4) By-pass Paper Feed Clutch (CL2)
  • Page 61 POINT-TO-POINT DIAGRAM A245 COPIER Aug ,25,1997 PCB1 SORTER MAIN BOARD AC POWER CORD CN1-6 ROLLER DRIVE CN1-7 [ 24]FEED M MOTOR CN1-8 24]BIN M CN1-9 CN118-1 24]BIN M 5]SCAN0 CN118-2 5]SCAN1 MAIN CONTROL BOARD BIN DRIVE CN118-3 5]SCAN2 MOTOR CN118-4 5]SCAN3 (PCB1) CN118-5...

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