Muller 6609, Руководство по эксплуатации, Страница: 31 / 55

Mod. 6609d-6612d: Automatic Forms Cutter 13.12.2006
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In other words: as soon as lines (except the adjustment line) are linked to a function
(through the programming of the OMR routine), marks which are printed on these lines
will be evalued. All other lines, e.g. text lines, will be treated as not belonging to the
reading code system.
Direct channel: Routine 9, parameter k) is intended for applications in which marks read by the feeder
are evaluated in the enveloping machine or some other system (black box). In this direct
channel routine, the whole code from the adjustment line onwards is transmitted via the
interface data line to the evaluating system (black box). The code is transmitted in its
entirety without any further processing (code = functions).
Code: A 5-digit decimal number which corresponds to the pattern of marks.
Function: A 5-digit decimal number which is transmitted to online equipment via the interface. It
contains (binary) information which triggers a particular function, e.g. collecting or
selecting.
Read errors :
Read error: the code that has been detected is shown in the lower window on the display. The first rea d mark
(always the AL) is shown on the display on the righ t (beside the arrow). The reading code is shown on the display
from the right to the left. For example 00000000010 01001 (together 16 reading lines) means that in lin e 1 (=AL),
4 and 7 a reading mark was detected. No reading marks are printed in the remaining lines.
Read errors can have a variety of causes:
a) The reading head and the mark are not on the same track.
b) The reading head has not been correctly adjusted to the adjustment line in the direction
of feed of the form.
c) During printing the operator has moved the paper in the printer sideways or
lengthways.
d) Read errors may occur if the marks are printed with a coloured ribbon that uses a
black which the infrared reading head cannot recognise as black (aniline dyes).
e) Sensitivity level not correctly set. Can be altered under service routines 060-063.
060 OMR sensitivity level 0 000 low sensitivity
061 OMR sensitivity level 1 001
062 OMR sensitivity level 2 002
063 OMR sensitivity level 3 003 high sensitivity
000 = low sensitivity (recommended for 90% of all applications )
Can be rechecked in service routine 009 (2/F). The new sensitivity level will be
transferred only when the machine is switched on ag ain.
f) The pattern of marks (code) does not exist in the list of routines selected under
parameter k). Either the code is wrong or there may be dirt on the paper.
g) The marks are too faint. The ribbon should have been changed earlier.