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Selectric Resources

 

 

Fabric Ribbon

SYMPTOM

POSSIBLE CAUSE

REMEDY

REMARKS

Print on paper

too light.

1. Ribbon worn or old.

Replace


2. Check quality of ribbon

being used.

Ink content of ribbons vary from

different manufacturers.


3. No lubrication

Lubricate ribbon mechanism


4. Ribbon spools or feed

pawl binding.

Check movement of feed pawl

(103-2) and spools (103-1).


5. Adjust brake spring

tension (103-3).

Adjust brake spring tension(103-3)

so ribbon will wind taut.

Noticable at the end of ribbon,

before reversing.

Ribbon will not

feed.

1. Ribbon selector lever in

stencil position.

Place ribbon lever in lift position

(104-5).


2. Ribbon exhausted on one

spool - machine did not

reverse.

See "Ribbon will not reverse section".


3. Ribbon feed pawl binding

on ribbon plate.

Adjust feed pawl (103-2) and rib

bon plate (104-6) left to right to

remove binds.


4. Ribbon feed plate loose or

maladjusted (104-6).

Tighten screws on late model ribbon mechanism (103)

Adjust early model ribbon plates

(104-6) back and forth until the

ribbon spool (103-1) is driven 2

teeth plus .010" while rotating

the turning wheel.

5. Ribbon feed pawl spring

missing or broken.

Replace feed pawl spring (104-7)

(103-8).


6. Ratchet detent lever

springs missing or

broken.

Replace detent springs (104-9)

(103-4).

Ratchet detent spring for figure

(103) is under front part of

ribbon plate.

7. Ratchet detents (103-4)

(104-9) not holding ratch

et spools (103-1).

Check detent lever for damage

and binds (103-4) (104-9).


Ribbon will not

reverse.

1. Lack of lubrication

Clean & Lubricate ribbon mech.

completely.


2. Missing or broken springs

binds on ribbon plate

(104-6).

Check carefully and replace

springs or remove binds in mech.


3. Ribbon brake tension.

Adjust ribbon brake tension by

varying brake spring tension

(103-3) on ribbon spools (103-1)

Causes ribbon reversing to occur

at varying points.

4. Binds in reversing triggers (105-11).

Clean & check reversing trigger

springs

Reversing springs (105-12) are

necessary to activate reverse

trigger (105-11).

5. Not enough spring tension

on ribbon reverse trigger

Check reverse trigger (105-11)

and reverse trigger spring (105-12)

Reverse trigger spring causes

trigger to pivot down and contact

feed plate when ribbon on that

spool is exhausted.

Machine not

printing full

character.

1. Ribbon lift control link

(105-16)

Adjust ribbon lift control link

(105-16) for proper lifting of

ribbon.


2. Ribbon lift guides binding

at rivets.

Clean and free guides of binds

(71-41).


3. Ribbon lift binding on

card holder.

Adjust card holder to prevent

binds.


4. Ribbon folding

Clean and check lift guides.

Also check ribbon folding within

cartridge.

5. Ribbon lift cam timing

off (106-17).

Adjust fine timing (See alignment section).


6. Ribbon flat links broken

(105-14).

Replace ribbon lift guides (105-13)


7. Spring off ribbon lift

control link.

Replace spring (105-15)