Ink Bifurcated Flow Channel Unit

Adjustment / 調整

When replacing/removing this part, refer to the following pages and make sure to perform the required operations before assembly/reassembly.

  1. Release the 6 locks (A), and remove the 6 Ink Pack Trays (B). (Only perform for SC-P8500DL series/SC-T7700DL series)

  2. Open the Maintenance Cover (A). (Only perform for SC-P8500DL series/SC-T7700DL series)

  3. Remove the screw. (Only perform for SC-P8500DL series/SC-T7700DL series)

    • :Black M3x8 S-tite screw

  4. Release the hook, and remove the Ink Holder (RIPS) Upper Cover (A). (Only perform for SC-P8500DL series/SC-T7700DL series)

    Assembly / 組み立て
    • Insert the Ink Holder (RIPS) Upper Cover (A) tab (B).
    • Insert the Ink Holder (RIPS) Upper Cover (A) hook (C).

  5. Remove the two screws, and remove the USB cable (A). (Only perform for SC-P8500DL series/SC-T7700DL series)

    • : Silver M3x8 P-tite screw

  6. Remove the two screws. (Only perform for SC-P8500DL series/SC-T7700DL series)

    • : Silver M3x8 S-tite screw
  7. Pull the Ink Pack Tray Right Side (A) slightly forward and release the 2 dowels. (Only perform for SC-P8500DL series/SC-T7700DL series)

  8. Slide the Ink Pack Tray Right Side (A) upwards to remove. (Only perform for SC-P8500DL series/SC-T7700DL series)

    Assembly / 組み立て
    • The gray lock lever (A) and ink plate (B) will come off when removing the Ink Pack Tray Right Side (C). Install them after installing the Ink Pack Tray Right Side (C) in the main unit.
    • With the lock lever (A) and tray lever (B) moved to the right side, install the Ink Pack Tray Right Side (C).
    • After installing the Ink Pack Tray Right Side (A), move the lock lever (B) and confirm that the tray lever (C) moves in conjunction.
  9. Open the Maintenance Box Cover (A).
  10. Release the 2 tabs of the Maintenance Box Cover (A) in the order shown in the figure below, and remove.
  11. Remove the Maintenance Box (A).
  12. Remove the screw.

    • : Silver M3x8 Cup S-tite screw
  13. Insert a flathead screwdriver and release the 2 hooks each, and remove the two screw cover (A).
  14. Insert a flathead screwdriver and release the 2 hooks, and remove the screw cover (A).
  15. Remove the three screws at the front side.
    • : Black M3x8 Cup P-tite screw
  16. Remove the five screws at the right side.
    • : Silver M3x8 Cup S-tite screw
    • : Silver M4x8 Cup S-tite screw
  17. Remove the four screws at the rear side.
    • : Silver M3x8 Cup S-tite screw with plastic washer
    • : Silver M3x8 Cup S-tite screw
  18. On the printer rear side, release the dowel of the Home Side Cover Unit (A).
  19. Insert a flathead screwdriver and release the 2 tabs each, and remove the Home Side Cover Unit (A) in the direction of the arrow.
  20. Open the IH Cover Unit (A). (Only perform for SC-P8500DL series/SC-T7700DL series)
  21. Slide the Ink Pack Tray Left Side (A) upwards and release the 3 hooks to remove. (Only perform for SC-P8500DL series/SC-T7700DL series)
  22. Open the Ink Cartridge Cover (A). (Only perform for SC-P8500D series/SC-T7700D series/SC-T5700D series/SC-P6500D series/SC-P6500DE series/SC-T3700D series/SC-T3700DE series/SC-P6500E series/SC-T3700E series/SC-P8500DM series/SC-T7700DM series/SC-T5700DM series)
  23. Remove the two screws.
  24. Release the 2 hooks and then remove the Take-up Button Board Cover (A).
    • : Black M3x10 Cup P-tite screw (SC-P8500D series/SC-T7700D series/SC-T5700D series/SC-P6500D series/SC-P6500DE series/SC-T3700D series/SC-T3700DE series/SC-P6500E series/SC-T3700E series/SC-P8500DM series/SC-T7700DM series/SC-T5700DM series only)
    • : Black M3x10 Cup P-tite screw (SC-P8500D series/SC-T7700D series/SC-T5700D series/SC-P6500D series/SC-P6500DE series/SC-T3700D series/SC-T3700DE series/SC-P6500E series/SC-T3700E series/SC-P8500DM series/SC-T7700DM series/SC-T5700DM series)
    • :Black M3x6 Cup S-tite screw (SC-P8500DL series/SC-T7700DL series)
  25. Remove the cable (A) from the connector.
  26. Open the Ink Cartridge Cover (A). (Only perform for SC-P8500D series/SC-T7700D series/SC-T5700D series/SC-P6500D series/SC-P6500DE series/SC-T3700D series/SC-T3700DE series/SC-P6500E series/SC-T3700E series/SC-P8500DM series/SC-T7700DM series/SC-T5700DM series)
  27. Remove the two screws.
  28. Release the 2 hooks and then remove the Roll Removal Board Cover (A).
    • : Black M3x10 Cup P-tite screw (SC-P8500D series/SC-T7700D series/SC-T5700D series/SC-P6500D series/SC-P6500DE series/SC-T3700D series/SC-T3700DE series/SC-P6500E series/SC-T3700E series/SC-P8500DM series/SC-T7700DM series/SC-T5700DM series)
    • :Black M3x6 Cup S-tite screw (SC-P8500DL series/SC-T7700DL series)
  29. Remove the cable (A) from the connector.

  30. Remove the two screws, and remove the Maintenance Cover (A).


    • : Silver M3x8 Cup S-tite screw
  31. Remove the cable (B) from the relay connector (A).
  32. Release the cable (B) from three clamps.

    Assemble / 組み立て
    • Push the two dowels (A) of the Maintenance Cover (A) in the positioning holes of the case.
  33. Detach the Ink Ink Cartridge Cover (A) from the three shafts. (Only perform for SC-P8500D series/SC-T7700D series/SC-T5700D series/SC-P6500D series/SC-P6500DE series/SC-T3700D series/SC-T3700DE series/SC-P6500E series/SC-T3700E series/SC-P8500DM series/SC-T7700DM series/SC-T5700DM series)
  34. Remove the six screws. (Only perform for SC-P8500D series/SC-T7700D series/SC-T5700D series/SC-P6500D series/SC-P6500DE series/SC-T3700D series/SC-T3700DE series/SC-P6500E series/SC-T3700E series/SC-P8500DM series/SC-T7700DM series/SC-T5700DM series)
    • : Silver M3x8 Cup S-tite screw

  35. Release the dowel of the Ink Holder Housing (A), and remove it frontward. (Only perform for SC-P8500D series/SC-T7700D series/SC-T5700D series/SC-P6500D series/SC-P6500DE series/SC-T3700D series/SC-T3700DE series/SC-P6500E series/SC-T3700E series/SC-P8500DM series/SC-T7700DM series/SC-T5700DM series)

    Caution / 注意

    Carefully remove the Ink Holder Housing not to pull the cables connected to the cover.
    Assemble / 組み立て
    • When removing the Ink Holder Housing (C) to remove another part or component, remove the sensor (B) from the relay connector (A), and then place the cover beside the printer.

    • If the ink tube (A) is detached from the hook of the Ink Bifurcated Flow Channel Unit (B), set the tube properly, or ink may not be supplied to the ink tube, resulting in print failure.

  36. Remove the two screws , and remove the USB cable (A). (Only perform for SC-P8500D series/SC-T7700D series/SC-T5700D series/SC-P6500D series/SC-P6500DE series/SC-T3700D series/SC-T3700DE series/SC-P6500E series/SC-T3700E series)

  37. Disengage the sensor (B) from the two hooks. (Only perform for SC-P8500D series/SC-T7700D series/SC-T5700D series/SC-P6500D series/SC-P6500DE series/SC-T3700D series/SC-T3700DE series/SC-P6500E series/SC-T3700E series)
    • : Silver M3x8 P-tite screw
  38. Open the Printer Cover.

  39. Remove the Home Side Top Cover (A).

    Assemble / 組み立て

    Set the two hinges of the Home Side Top Cover (A) on the guides of the Panel Lower Cover (B).


  40. Remove the four screws and then remove the Panel Hinge Cover (A).
    • : Silver M3x8 P-tite screw
    Lubrication / 注油

    Before attaching the part, refer to the following and then lubricate.
  41. Lift the Panel Assy (A), and release from the stopper.
  42. Slide the FFC Cover (A) in the direction of the arrow to remove.
  43. With the connector metal part (A) pushed in the direction of the arrow, remove the FFC (B).
  44. Remove the Panel Assy (C).
  45. Open the Panel Hinge Cover.
  46. Remove the Printer Cover Right Unit (A).
    1. Remove the two screws.
    2. Release the two ink tubes (B/C) from the two guides of the Head Maintenance Cover Front (A).

    3. Release the three ink tubes (B/C/D) from the guide of the Head Maintenance Cover Front (A), and remove it.

      • : Silver M3x10 Cup P-tite screw


      Assembly / 組み立て
      • Be careful not to pinch the ink tube with the front of the head maintenance cover.
      • There are two types of Head Maintenance Cover Front, and the assembly method differs depending on the shape.
        • For shape A
        • Route the ink tubes (A) of the Ink Bifurcated Flow Channel Unit through the guides.
        • Put the marking portions (B/C/D) of the ink tubes in the guides.
        • Align the marking of the ink tube (E) with top edge of the hook of the Ink Bifurcated Flow Channel Unit.
        • For shape B
        • Route the ink tubes of the Ink Bifurcated Flow Channel Unit through the guides.
        • Place the ink tube (A) in the upper guide and the ink tube (B/C) in the lower guide.
        • Align the marking of the ink tube with top edge of the hook of the Ink Bifurcated Flow Channel Unit.
      • Make sure that the Ink Tube (B) is not crushed when the Ink Holder Housing (A) is installed.
      • Insert the Ink Tube (C) and Ink Tube (D) parallel to each other into the slit in the Head Maintenance Cover Front (E).
  47. Remove the two screws.
  48. Release the two ink tubes (B/C) from the two guides of the Head Maintenance Cover Front (A).

  49. Release the three ink tubes (B/C/D) from the guide of the Head Maintenance Cover Front (A), and remove it.

    • : Silver M3x10 Cup P-tite screw


    Assembly / 組み立て
    • Be careful not to pinch the ink tube with the front of the head maintenance cover.
    • There are two types of Head Maintenance Cover Front, and the assembly method differs depending on the shape.
      • For shape A
      • Route the ink tubes (A) of the Ink Bifurcated Flow Channel Unit through the guides.
      • Put the marking portions (B/C/D) of the ink tubes in the guides.
      • Align the marking of the ink tube (E) with top edge of the hook of the Ink Bifurcated Flow Channel Unit.
      • For shape B
      • Route the ink tubes of the Ink Bifurcated Flow Channel Unit through the guides.
      • Place the ink tube (A) in the upper guide and the ink tube (B/C) in the lower guide.
      • Align the marking of the ink tube with top edge of the hook of the Ink Bifurcated Flow Channel Unit.
    • Make sure that the Ink Tube (B) is not crushed when the Ink Holder Housing (A) is installed.
    • Insert the Ink Tube (C) and Ink Tube (D) parallel to each other into the slit in the Head Maintenance Cover Front (E).
  50. Remove the cable (A) from the connector.
  51. Press the hook on the rear side in the direction of the arrow to release.
  52. Pull out the Head Maintenance Cover Front Cover Sensor (B) to the front to remove.
  53. Remove the two screws (red).
  54. Remove the two screws (blue), and remove the USB cable (A).
    • : Silver M3x10 Cup P-tite screw
    • : Silver M3x8 P-tite screw
  55. Remove the ferrite core (B) from the FFC (A).
  56. Remove the six screws.
    • : Silver M3x8 Cup S-tite screw

  57. Release the FFC (B) from the Panel Lower Cover (A), and remove the Panel Lower Cover (A).

    Lubrication / 注油

    Before attaching the part, refer to the following and then lubricate.
  58. Remove the six screws, and then remove the three ink tubes (A).
    • : Black M2.5x16 S-tite screw with built-in washer
    Check Point / チェックポイント

    When using the forceps jig (A), pinch the ink tube (B) as shown in the figure, and then remove it.

  59. Remove the two screws, and then remove the three ink tube (A).

  60. Release the ink tubes (A) from the hook.
    • : Black M2.5x16 S-tite screw with built-in washer
    Check Point / チェックポイント

    When using the forceps jig (A), pinch the ink tube (B) as shown in the figure, and then remove it.

  61. Remove the two screws, and then remove the Ink Bifurcated Flow Channel Unit (A).

    • : Silver M3x8 S-tite screw

    Assemble / 組み立て
    • Before installing the Ink Tube, make sure Joint Seal Rubber is installed in the Ink Flow Path.
    • Replace the joint rubber with a new one because it cannot be reused.

    • Install the Joint Seal Rubber after soaking in a cleaning solution.

    • Tighten the screws securing the Ink Tube, alternately, two rounds at a time, using a torque driver.
      Specified torque: 0.29 ± 0.05 N⋅m

    • Place the ink tubes so that their line marking (A) locate as shown.


    • If the ink tube (A) is detached from the hook of the Ink Bifurcated Flow Channel Unit (B), set the tube properly, or ink may not be supplied to the ink tube, resulting in print failure.



Adjustment / 調整

When replacing/removing this part, refer to the following pages and make sure to perform the specified operations including required adjustment.

Lubrication / 注油

Before attaching the part, refer to the following and then lubricate.