Service manual

Page 6-23
Section 6. Replacement Procedures
PN 9001080
Rev. A
SATO M-8485Se Standard Print Engine
Service Manual
6.10 Replacing the Ribbon Drive Clutch Washers
STEP PROCEDURE
1a. Switch the printer OFF and disconnect the power cable.
2a. Raise the lid on the mechanical side of the printer.
3a. Remove screw from cabinet side to allow printer halves to swing open for
access to the inside of the printer. Fig. 6-31
4a. Remove the following parts from each of the spindle shafts (in order):
Figs. 6-32
Both the ribbon unwind and the rewind drive spindles incorporate a friction clutch
assembly to control tension. The friction washers within these clutch assemblies are
replaceable. The procedure is identical for both the unwind and rewind spindles.
To disassemble, perform the following steps:
6-31
Figs.
REMOVE LOCKING
SCREW AND SWING
CABINET OPEN
ITEM NO. DESCRIPTION QTY EA ASSY
1. SCREW (1)
2. ADJUSTMENT NUT (1)
3. STOPPER COLLAR (1)
4. SPRING (1)
5. DISC (1)
6. OIL-LESS DRY METAL WASHER (1)
7. COLLAR (2)
8. RIBBON BOSS (1)
9A & 9B DISC PLATE (DIFFERENT) (1)
10. FRICTION WASHER (1)
11. HOLD PLATE (1)
12. BACK PLATE (1)
NOTE: Disassemble one spindle at a time so that the other can be used
for reference. Go to page 6-23 to reassemble.