Braillo 200, Instruction Manual

Page: 33 / 62

BRAILLO
M
NORWAY AS B 200
29
Possible reasons for errors
See figures on page 36.
If a dot from a certain printing pin is missing regularly, the reason might be one of the following:
1 - Defect magnet (7).
2 - Broken short pivot arm (9).
3 - The long pivot arm (3) cannot move because of dirt.
4 - The printing pin is stuck because of dirt, causing the short pivot arm (9) to miss the long
pivot arm (3).
5 - Errors on the Magnet Rack Driver Board.
If dots from several printing pins are missing now and then, the reason might be one of the following:
1 - The sponge list (5) is pushing too hard on the long pivot arm (3).
2 - The gap (11) is too large.
3 - The support list (1) has become sticky on the side against the long pivot arms (3), and the
long pivot arm does not move properly.
If there are too many dots on the paper, the reason might be one of the following:
1 - The sponge list (5) is not pressing enough against the long pivot arm (3).
2 - The gap (11) is too small.
3 - The magnet poles have become sticky, and this causes the pivot arms (3) to stick to the
magnet.
4 - The long pivot arm (3) does not move properly.
Control:
To ensure yourself that you have found the right mechanism after a search, you can do the following test:
Pull the suspected long pivot arm against the magnet with your finger. (Like the lowest figure on page 37).
At the same time, run a test print. The mechanism with the finger on, will make a column of dots
downwards the paper until you take the finger away. By doing this you can see if this column of dots is
situated on the same place on the sheet as the error is.