Service manual

Page 6-18
Section 6. Replacement Procedures
PN 9001080
Rev. A
SATO M-8485Se Standard Print Engine
Service Manual
6.9 Replacing the Timing Belts
Three timing belts used in this printer are arranged as follows:
Starting at the stepper motor:
Belt A - From the motor to front and rear platen rollers to idler pulley A to feed
roller and back to motor. Fig. 6-26 & 6-27
Belt B & C - From rear platen roller to three level idler gear B. The first level of
idler gear B meshes with ribbon roller gear. The second level of idler gear B is
connected to the rear platen. The third level of idler gear B is connected to the
rewind spindle via Belt C Fig. 6-28 & 6-29
Idler pulley C is used for adjusting tension on belt.
6-26
Fig.
6-27
Fig.
M
OTOR
IDLER
PULLEY
“A”
B
ELT “A”
REAR PLATEN
ROLLER - TWO
LEVEL GEAR
FRONT PLATEN
ROLLER
FEED
ROLLER
MOTOR
FEED
ROLLER
FRONT PLATEN
ROLLER
BELT “A”
IDLER PULLEY
“A”
REAR PLATEN
ROLLER - TWO
LEVEL GEAR