Ink Blocking Plate Position Adjustment - Riso RN SERIES Technical Manual

3.

Ink Blocking Plate Position Adjustment

Front
(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
• Ink pump unit
(2) Loosen the mounting screw on the Ink blocking plate (F) [A] via the opening in the Print drum
support (F).
(3) Insert a slot-head screwdriver into the slot in the Ink blocking plate (F) [A] and move the plate until
it is flush with the inside surface of the print drum. Tighten the mounting screw.
Rear
(1) Pull out the print drum, and loosen the mounting screw on the Ink blocking plate (R) [B] via the
opening in the Print drum support (R).
(2) Insert a slot-head screwdriver into the slot in the Ink blocking plate (R) [B] and move the plate until
it is flush with the inside surface of the print drum. Tighten the mounting screw.
[Symptoms]
• If the ink blocking plates are not flush with the inside surface of the print drum, they will not be able
to block the ink exuded to the ends of the Squeegee roller. Ink will accumulate inside the print drum,
and in the worst cases, ink may leak out from the print drum body.
A: Ink blocking plate (F)
B: Ink blocking plate (R)
INK BLOCKING PLATE POSITION ADJUSTMENT
B A
8 – 27
RN (Version 1.0)
CHAPTER 8. PRINT DRUM SECTION