Removing The Print Drum Supports (R) And (F) - Riso RN SERIES Technical Manual

CHAPTER 8. PRINT DRUM SECTION

REMOVING THE PRINT DRUM SUPPORTS (R) AND (F)

12. Removing the Print Drum Supports (R) and (F)
(1) Pull out the print drum, remove the ink cartridge, and remove the following components.
• Print drum front cover
• Ink cartridge guide ass'y
• Drum front upper cover
• Ink cartridge set switch PCB cover
• Ink cartridge set switch PCB mounting bracket
• Swing base ass'y
• Ink cartridge guide bottom ass'y
• Screen
• Print drum body
(2) Unplug the connector on the Ink sensor PCB.
(3) Remove the mounting screws (M4 x 8: 2 pcs) on the Junction gear ass'y [A], and remove the Junction
gear ass'y [A].
(4) Remove the C-ring [B] retaining the Joint gear [C] on the ink distributor, and remove the Joint gear [C].
(5) Remove the mounting screws (M4 x 6: 2 pcs) [E] retaining the Drum rear frame plate [D] to the print
drum side frame ass'y.
F
(6) Remove the screws (M4 x 8: 2 pcs) [F] that hold the Drum rear frame plate [D] to the Drum shaft
clamper [G], and slide out the Drum rear frame plate [D] from the ink distributor.
(7) Loosen the 3-mm Allen bolts [H] on the Drum shaft clamper [G], and slide out the Drum shaft
clamper [G] from the ink distributor.
(8) Remove the mounting screws (M4 x 12: 4 pcs) [J] on the Print drum main gear [I], and slide out the
Print drum main gear [I] from the ink distributor.
[Continued on next page]
A
B
C
D
K
J
I
H
8 – 22
RN (Version 1.0)
A: Junction gear ass'y
B: C-ring
C: Joint gear
E
D: Rear frame
E: Mounting screw (M4 x 6: 2 pcs)
F: Mounting screw (M4 x 8: 2 pcs)
G
G: Drum shaft clamper
H: 3-mm Allen bolts
I: Print drum main gear
J: Mounting screw
(M4 x 12: 4 pcs)
K: Print drum support (R)