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Selectric Resources

 

Impression Problems

SYMPTOM

POSSIBLE CAUSE

REMEDY

REMARKS

Impression

problems

1. Poor lubrication

lubricate machine completely.

Lubricate carrier, racks, shafts

and cycle clutch mechanism.

2. Broken typehead (36)

Replace or repair

 

1. Typehead could cause problems

if the silver coating wears off.

2. Latch springs on element

broken.

 

3. Cap broken or loose.

3. Check platen for wear

and adjustment.

Check platen for high spots and

ridges.

Adjust platen up and down (80-11);

and back and forth (80-12).

4. Platen latches and platen

bearings (81-13).

Check for wear and adjustment.

Use platen gauge.

5. Multiple copy control

lever (81-14).

Make sure copy control lever is

all the way forward.


6. Check paper being used

Some types of paper will not accep1

ink as readily as others.

Also check for oil and grease spots

on paper.

7. Cycle clutch drive (1)

Observe cycle clutch drive for

responsive action after each key

depression. It should have instance response.

Lubricate cycle clutch with grease

8. Card holder

Adjust card holder to prevent

interference with platen or ribbon

lift.


9. Drive belt (6-7)

Adjust drive belt for slight deflection with minimum noise.

Drive belt adjusted by using motor

mount brackets (3A-8).

10. Power and free flight

adjustments.

See "Noise during print cycle only,cause f section".


11. Finger prints or oil on

paper.

Check paper closely, notice what

kind of paper is being used.


12. Broken bias spring in

tilt ring. (44-31).

Replace

Bias spring is in late level tilt

ring - remove upper ball socket

(41-25) to check bias spring.

13. Ribbon feed

See ribbon section


14. Ribbon defective or worn

Change ribbon

Some ribbons may have dry or oil

spots.

15. Fine timing

See alignment section


16. For further causes, see

escapement section