Ricoh Aficio 401 Service Manual
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Ricoh Aficio 401 Service Manual

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(Machine Code: A195)
– Insert Version –
The A195 machine is based on the A133 Copier.
Only the differences from the base copier are described in the
following pages. Therefore, this documentation should be treated
as an insert version of the base copier's service manual, although
it has a separate binder. It should always be utilized together with
the base copier's service manual.
Aficio 401
Service Manual
TS Dept. IPP Business Division
RICOH Co., LTD.
April 25th 1997

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  • Page 1 Aficio 401 (Machine Code: A195) Service Manual – Insert Version – The A195 machine is based on the A133 Copier. Only the differences from the base copier are described in the following pages. Therefore, this documentation should be treated as an insert version of the base copier’s service manual, although it has a separate binder.

  • Page 2: Important Safety Notices

    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 some components of the copier and the paper tray unit are supplied with electrical voltage even if the main switch is turned off.

  • Page 3: Safety And Ecological Notes For Disposal

    SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL 1. Do not incinerate the toner bottle or the used toner. Toner dust may ignite suddenly when exposed to open flame. 2. Dispose of used toner, developer, and organic photoconductor according to local regulations. (These are non-toxic supplies.) 3.

  • Page 4: Specifications

    25 April 1997 SPECIFICATIONS 1. SPECIFICATIONS NOTE: Only items marked with are different from the A133 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" (Paper tray) Minimum A5/8 "...
  • Page 5 SPECIFICATIONS 25 April 1997 Zoom: 25% to 400% in 1% steps Power Source: 120V/60Hz: More than 12 A (for North America) 220V ~ 240V/50Hz: More than 7 A (for Europe) 220V ~ 240V/60Hz: More than 7 A (for Asia) Power Consumption: Copier Only Full System Maximum...
  • Page 6 25 April 1997 SPECIFICATIONS Warm-Up Time Less than 140 seconds (20°C, 68°F) First Copy Time: Less than 5.2 s (from LCT) Copy Number Input: Ten-key pad, 1 to 999 (count up or count down) Manual Image Density 7 steps Selection: Automatic Reset: 30 s is the standard setting;...

  • Page 7: Machine Configuration

    MACHINE CONFIGURATION 25 April 1997 2. MACHINE CONFIGURATION 13 12 A195V550.wmf NOTE: Only items marked are new items. Item Machine Code Copier A195 ADF (Option) A548 Paper Feed Unit (Option) A549 A550 Finisher (Option) A612 500-sheet Receiving Tray (Option) A615 Platen Cover (Option) A381 3-bin Sorter (Option)

  • Page 8: Electrical Component Descriptions

    25 April 1997 ELECTRICAL COMPONENT DESCRIPTIONS 3. ELECTRICAL COMPONENT DESCRIPTIONS Refer to the electrical component layout and the point-to-point diagram on the waterproof paper in the pocket for the locations of these components. : New or modified components. Symbol Index Description Note Printed Circuit Boards...
  • Page 9 ELECTRICAL COMPONENT DESCRIPTIONS 25 April 1997 Symbol Index Description Note Dummy Board Installed to connect the SCU and EX-IPU PCB22 and other cables when the main contoller board is not present. Motors Main Drives the main body components. Toner Bottle Drive Rotates the toner bottle to supply toner to the toner supply unit.
  • Page 10 25 April 1997 ELECTRICAL COMPONENT DESCRIPTIONS Symbol Index Description Note LCT Upper Limit Signals the CPU to stop lifting the LCT bottom plate. Registration Detects the leading edge of the copy paper to determine the stop timing of the paper feed clutch, and detects misfeeds.
  • Page 11 ELECTRICAL COMPONENT DESCRIPTIONS 25 April 1997 Symbol Index Description Note LCT Cover Cuts the dc power line of the LCT lift motor. Main Supplies power to the copier. Front Cover Safety Cuts the dc power line and detects whether the front cover is open or not. Magnetic Clutches Toner Supply Turns the toner supply roller to supply toner...
  • Page 12 25 April 1997 ELECTRICAL COMPONENT DESCRIPTIONS Symbol Index Description Note Thermistors Fusing Monitors the temperature at the central area of the hot roller. Thermofuses Fusing Provides back-up overheat protection in the fusing unit. Thermoswitch Exposure Lamp Opens the exposure lamp circuit if the 1st scanner overheats.

  • Page 13: Drive Layout

    DRIVE LAYOUT 25 April 1997 4. DRIVE LAYOUT A195V504.wmf The development drive mechanism has been changed. (See Drive Mechanism for more information.) : New or modified components. 1. Toner Supply Clutch 9. Transfer Belt Drive Gear 2. Development Gear 10. Cleaning Blade Drive Gear 3.

  • Page 14: Drive Mechanism

    25 April 1997 DRIVE MECHANISM 5. DRIVE MECHANISM 5.1 Development Drive Mechanism A195D550.wmf The development drive motor [B] rotates the development drive gear [A], which drives the gears in the development unit. The gears in the toner supply unit are driven by the toner supply roller drive gear [C] when the toner supply clutch [D] activates.

  • Page 15: Energy Star

    ENERGY STAR 25 April 1997 6. ENERGY STAR 6.1 Auto OFF Mode When the main controller board is not installed When the Auto OFF timer expires (the default is 60 minutes), the machine cuts all power to the copier. The Auto OFF timer can be programmed with UP mode.

  • Page 16: Programming Mode

    The following table shows the programming mode for the production name and device name. Mode Method Entry Brand Product Name Device Name Name Vender ID Product ID Ricoh Ricoh Aficio 401 Ricoh Aficio 401 D440/2840/ NRG D440/2840/3240 3240 OEM Code Not used SP 5818 Setting...

  • Page 17: Service Program Mode Tables

    SERVICE PROGRAM MODE TABLES 25 April 1997 8. SERVICE PROGRAM MODE TABLES NOTE: Items marked with are new or modified items. 8.1 MAIN SP MODE TABLE NOTE: 1. In the Function column, comments are in italics. 2. In the Settings column, the default value is in bold letters. 3.
  • Page 18 25 April 1997 SERVICE PROGRAM MODE TABLES Mode No. Function Settings Class 1 Class 2 Side-to-Side Adjusts the printing side-to-side +9 ~ -9 Registration registration from the 4th paper feed 0.1 mm/step (4th paper station using the Trimming Area Pattern + 0.0 mm feed: Option (SP2902-3, No.10).
  • Page 19 SERVICE PROGRAM MODE TABLES 25 April 1997 Mode No. Function Settings Class 1 Class 2 Fusing Selects the fusing temperature control On/Off 1104 * Temperature mode. Phase Control Fusing Adjusts the fusing temperature. 170 ~ 200 1105 * Temperature 1°C/step Adjustment 185°C Fusing...
  • Page 20 25 April 1997 SERVICE PROGRAM MODE TABLES Mode No. Function Settings Class 1 Class 2 Development Adjusts the development bias during 200 ~ 700 Bias copying. 1 V/step Adjustment 550 V (for copying) This can be adjusted as a temporary measure if faint copies appear due to an aging drum.
  • Page 21 SERVICE PROGRAM MODE TABLES 25 April 1997 Mode No. Function Settings Class 1 Class 2 Manual Adjust the V of the TD sensor. 1.50 ~ 3.00 TREF TREF Setting 0.01V/step Change this value after replacing the 2.52V development unit with another one that already contains toner.
  • Page 22 25 April 1997 SERVICE PROGRAM MODE TABLES Mode No. Function Settings Class 1 Class 2 Charge Determines whether to clean the charge Corona Wire corona wire every time interval set with Cleaning SP 2804-2. Enable/Disable This only works if the optional wire 2804 * cleaning motor is installed.
  • Page 23 SERVICE PROGRAM MODE TABLES 25 April 1997 Mode No. Function Settings Class 1 Class 2 Side-to-Side Changes the printing start position. - 12.7 ~ + 12.7 2950 * Registration 0.1 mm/step Factory use only (Base) + 0.0 mm ID Sensor Performs the ID sensor initial setting.
  • Page 24 25 April 1997 SERVICE PROGRAM MODE TABLES Mode No. Function Settings Class 1 Class 2 Leading Edge Adjusts the leading edge margin for 0.0 ~ 0.9 Erase Margin scanning. 0.1 mm/step (Scanning) 1.0 mm Do not adjust this unless the user wishes to have a scanner margin that is greater than the printer margin.
  • Page 25 SERVICE PROGRAM MODE TABLES 25 April 1997 Mode No. Function Settings Class 1 Class 2 GA 1 Setting The coefficient of the D/A converter for 0 ~ 255 (GAIN 0) the standard AGC gain curve. 1 /step This SP mode is for factory use only. Do not change the value .
  • Page 26 25 April 1997 SERVICE PROGRAM MODE TABLES Mode No. Function Settings Class 1 Class 2 GA 3 Setting Selects the strengths of the MTF and 0 ~ 255 (Filter Level) smoothing filters. bit 7, 6: Letter Mode (MTF) 00: Normal 01: Weak 10: Weaker 11: Weakest...
  • Page 27 SERVICE PROGRAM MODE TABLES 25 April 1997 Mode No. Function Settings Class 1 Class 2 GA 3 Setting Changes the image shift amount for the 0 ~ 255 (Main Shift main scan direction in magnification mode. 1 /step High) GA 3 Setting Do not change the values of 4903-7 4903 (Main Shift...
  • Page 28 25 April 1997 SERVICE PROGRAM MODE TABLES Mode No. Function Settings Class 1 Class 2 GA4 Setting Selects the image processing mode used for photo areas (Image in the Letter/Photo mode. Process mode 0: 1 x 1 dot processing 1: Error diffusion with 1 x 1 dot processing Letter/Photo 2: 2 x 1 dot processing mode: Photo...
  • Page 29 SERVICE PROGRAM MODE TABLES 25 April 1997 Mode No. Function Settings Class 1 Class 2 GA4 Setting Decides the threshold level for selecting 0 ~ 255 (Pulse Width the type of pulse width modulation that is 1 /step Modulation) used. Do not change the value.
  • Page 30 25 April 1997 SERVICE PROGRAM MODE TABLES Mode No. Function Settings Class 1 Class 2 GA4 Setting Selects whether an image which overlaps 0: Not (Stamp a stamp pattern is converted from positive converted Pattern Merge to negative or not. 1: Converted Method) The settings 0 and 1 are the same as for...
  • Page 31 SERVICE PROGRAM MODE TABLES 25 April 1997 Mode No. Function Settings Class 1 Class 2 HDD Setting Input the total storage capacity of the hard (Total Storage disk at replacement. Capacity) In future, hard disks of various sizes may be available. In this case, use this SP mode when installing a new disk.
  • Page 32 Press the " • /#" key to input a pause (  ). Press the "Clear modes" key to delete the telephone number. OEM Code Select the production name and the 0: Ricoh Aficio Setting device name for Windows95 Plug and Play, PostScript for Macintosh, or the 1: NRG D440/ SCSI Device name.
  • Page 33 SERVICE PROGRAM MODE TABLES 25 April 1997 Mode No. Function Settings Class 1 Class 2 Duplex Tray Selects the total capacity of the duplex 50 sheets Capacity Limit tray for A3 paper. 30 sheets 5902 for A3 Copies If there are frequent jams at the duplex unit when using A3 paper, try setting this to 30.
  • Page 34 25 April 1997 SERVICE PROGRAM MODE TABLES Mode No. Function Settings Class 1 Class 2 ADF Side-to Adjusts the printing side-to-side -3 ~ +3 Side registration in the ADF mode. 0.1 mm/step Use the •/∗ key to toggle between + and -. Registration + 0.0 mm ADF Leading...
  • Page 35 SERVICE PROGRAM MODE TABLES 25 April 1997 Mode No. Function Settings Class 1 Class 2 ROM/CPU Displays the operation panel board ROM Version version. (Operation Panel) ROM/CPU Displays the ROM version for the MSIS Version on the SCU board. (MSIS) ROM/CPU Displays the ROM version for the copy Version...

  • Page 36: Test Pattern Printing (Sp 2902)

    25 April 1997 SERVICE PROGRAM MODE TABLES 8.2 TEST PATTERN PRINTING (SP 2902) 1. Access the SP mode which holds the test pattern that you need. 2. Touch the "Copy Mode" button on the display to access the copy mode display.
  • Page 37 SERVICE PROGRAM MODE TABLES 25 April 1997 8.3 External ASAP Video I/F Test (SP4905-2) This tests the video data interface between the dummy board and the IPU board. If the printout from the test is no good, the interface between the IPU and the dummy board is defective.
  • Page 38 25 April 1997 SERVICE PROGRAM MODE TABLES 8.4 Option Bus Interface Check (SP5945) 1. Replace the main controller with the dummy board. CAUTION Do not perform this test with the main controller board in the machine. 2. Access SP mode and select SP mode 5945. 3.
  • Page 39 SERVICE PROGRAM MODE TABLES 25 April 1997 8.5 Printer Controller Disk Error Log (SP5990 to Print, SP5946 to Clear) The Printer Controller Disk Error Log is used to determine whether a disk error is fatal or not. Use this for reference when deciding whether HDD replacement is needed. To print to the printer controller disk error log: 1.
  • Page 40 25 April 1997 SERVICE PROGRAM MODE TABLES To clear the error log. 1. Access SP mode 5946. 2. Touch "Yes" on the display to clear the error log. The last five error logs will be cleared, and the total counter will be reset to 0.

  • Page 41: Memory All Clear (Sp5801)

    SP3001, SP4901-2, SP4901-5, and SP4901-8 must be input. 8. Enter the setting of the OEM code (the value is set using SP5818). NOTE: This step is not necessary for the Ricoh Aficio 401, only for OEM machines. 9. Check the copy quality and the paper path, and do any necessary...

  • Page 42: Outer Cover Removal

    25 April 1997 INNER AND OUTER COVERS 10. INNER AND OUTER COVERS 10.1 OUTER COVER REMOVAL A195R530.wmf 10.1.1 Front Cover 1. Open the front cover. 2. Remove the front cover [A] (3 pins). 10.1.2 Left Cover 1. Remove the optional 500-sheet tray or finisher. 2.
  • Page 43 INNER AND OUTER COVERS 25 April 1997 10.1.4 Operation Panel A195R530-2.wmf 1. Turn off the main switch and unplug the machine. 2. Open the front cover. 3. Swing out the toner bottle holder assembly. 4. Remove the operation panel [A] (4 screws, 3 connectors). 10.1.5 Right Upper Cover 1.
  • Page 44 25 April 1997 INNER AND OUTER COVERS 10.1.7 Right Cover A166R531.wmf 1. Open the front cover and pull out the paper tray and duplex. 2. Remove the LCT harness cover [A] (1 screw). 3. Remove the LCT rear cover [B] (2 screws). 4.
  • Page 45 INNER AND OUTER COVERS 25 April 1997 10.1.8 Controller Board Cover A195R654-2.wmf 1. Loosen the 2 screws [A] of the optional NIC. 2. Remove the optional NIC [B]. 3. Remove the controller board cover [C] (9 screws). 10.1.9 Rear Cover A195R63.wmf 1.
  • Page 46 25 April 1997 INNER AND OUTER COVERS 10.2 DEVELOPMENT DRIVE MOTOR AND TONER SUPPLY CLUTCH REPLACEMENT A195R538.wmf A195R551.wmf 1. Turn off the main switch. 2. Remove the rear cover. (See Outer Cover Removal.) 3. Remove the controller board bracket (See Controller Board Bracket Replacement) 4.
  • Page 47 INNER AND OUTER COVERS 25 April 1997 A195R656.wmf A195R657.wmf 9. Remove the fan motor [G]. (2 screw, 1 connector.) 10. Remove the development drive motor assembly [H] (3 connectors, 3 screws). 11. Remove the gear cover [I] (2 screws). 12. Remove the development drive holder [J] (1 E-rings, 3 screws). 13.
  • Page 48 25 April 1997 INNER AND OUTER COVERS 10.3 HDD Unit Replacement A195R589.wmf 1. Turn off the main switch and unplug the machine. 2. Remove the main controller board bracket. (See Main Controller Board Bracket Removal.) 3. Remove the wire clamp [A] (1 screw). 4.
  • Page 49 INNER AND OUTER COVERS 25 April 1997 A195R658.wmf 10.4 SCU BOARD REPLACEMENT 1. Turn off the main switch and unplug the machine. 2. Remove the rear cover (See Outer Cover Removal). 3. Replace the SCU board [A] (4 screws, all connectors). 4.
  • Page 50 25 April 1997 INNER AND OUTER COVERS 10.6 EXTENSION BOARD REPLACEMENT A195R658-2.wmf 1. Turn off the main switch and unplug the machine. 2. Remove the rear cover (See Outer Cover Removal). 3. Remove the extension board [E] (2 connector, 4 screws).
  • Page 51 INNER AND OUTER COVERS 25 April 1997 10.7 DUMMY BOARD REPLACEMENT A195R652.wmf 1. Remove the controller board cover [A] (See Outer cover Removal). 2. Remove the dummy board [B] (3 connectors, 4 screws) NOTE: If the main controller has been installed, the dummy board is not there.
  • Page 52 25 April 1997 INNER AND OUTER COVERS 10.8 CONTROLLER BOARD BRACKET REPLACEMENT A195R651.wmf 1. Remove the controller board cover (See Outer Cover Removal). 2. Remove the main controller board and optional boards (See the SP3 controller manual), or remove the dummy board (See Dummy Board Removal).

This manual is also suitable for:

A195

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