Oki 3320, 3321 specifications Specification Drawing

No.

Item

Specification

Drawing

Adjustment method

4–1–1

Gap between the plat-

It shall be measured

en and the print head

at 3 points: the left

end, the

center

and

1) Parallelism ad-

the right end of the

justment

Variation

of

platen.

value at

the

left, the center

Adjustment method

and

the right

shall

be

less

(1) Gap between the

than 0.02 mm

platen and

the

After adjustment, mark the adjust

print head at the

left end and the

composition with a red pen.

right end shall be

Left

Right

adjusted by rota-

Adjust cam

ting

the

adjust

cam.

(2) Set

the

adjust

Marking

lever

at

the

Range: 1. Press

the adjust

gear

downward

(in

direction

A) to

push

the

adjust

gear

and

the

adjust gear out of

mesh.

0.41±0.03 mm

(3) Adjust the gap by

2) Initial adjustment

rotating the adjust

screw in direction

Carriage shaft

B or C while the

adjust

lever

and

the adjust

gear

Platen

are disengaged.

(4) After adjustment,

mark

the

adjust

cam position with

Left

Center

Right

a red pen.

Range: 1

Range: 5 Print head

Adjust lever	Adjust gear
Adjust screw	Adjust cam

4 – 2