Atari 1025 Field Service Manual page 35

•
Remove
the space
belt
clamp screw
and
the space belt
clamp
(Figure
4-3,
#14,15) on the carriage assembly
•
Remove
the ribbon and
set
it
aside.
Then remove
the
E-snap
ring (Figure
4-6, #20)
from one
of the ribbon spool gears and
lift
off
the gear assembly
(Figure
4-6,
#21-25).
•
Remove
the detent spring (Figure
4-6, #26).
•
Remove
the
E-snap
rings (Figure
4-6, 41
and
42)
on the
ribbon
change
lever (Figure 4-6, #27), the
lever
itself
and
the ribbon drive gear (Figure
4-6, #28).
•
Remove
and replace
the space
belt.
Assembly
•
Reassemble
the ribbon drive gear (Figure
4-6,
#28)
into
the ribbon change
lever (Figure 4-6, #27).
Engage
its
pulley teeth with the space
belt
teeth
accurately before you
fasten the ribbon change
lever
E-snap
rings (Figure
4-6, #28).
• Attach
the detent spring (Figure
4-6, #26).
•
Assemble
the ribbon spool gear
assembly
(Figure
4-6,
#20-25).
•
Attach and
secure the space
belt
clamp
with the
belt
clamp screw
(Figure
4-3,
#14 and
15).
• Readjust the
position of the space pulse
motor
correctly. Refer
to
the
Space
Belt
Tension Adjustment on page
4-4 and the
First
Character
Position Adjustment
on pages
4-8.
•
Follow
the
Upper Cover Assembly
procedure on page
4-10.
PLATEN
DISASSEMBLY
•
Follow
the
UPPER COVER
DISASSEMBLY,
page
4-1.
•
Remove
the detent springs (Figure
4-4,
#29 and 29A)
•
Remove
the E-snap
rings
(Figure
4-4, #30), pull the paper-cut knife lever
shaft (Figure
4-4,
#31) out
of the
side plate
and remove
the paper-cut
knife (Figure
4-4, #32).
•
Remove
the paper separator
screws
(Figure
4-4, #33) and the paper
separator
(#34).
•
Remove
the
idle
gear E-snap
ring (Figure 4-4,
#35)
and then
the
idle
gear
(Figure
4-4, #36).
• Pull the right
platen bearing assembly
off horizontally (Figure
4-4,
#37-
39).
Turn
the platen
90° and
remove
it
by
lifting
it
straight up.
Atari 1025 Printer
Field Service Manual
4-5