Download umITKv103 - Practical Automation

9.0 ERROR CODES
9.1 Annunciations
The ITK 38 printer uses the switch and display panel to output operational conditions or errors, to the user, by a series of
sequential beeper tones (beeps) which coincide with the flash of the ATTN/ERR LED. The flash/beep signal is of a long (1) or
short (0) duration. The flash/beep signals are arranged as a coded sequence, followed by a long quite pause, before repeating.
9.2 Sequence Length
These flash/beep sequences are arranged into three groups. These are: three, four or five flash/beep signal length sequences.
9.3 Weighted Positions
Each flash/beep signal represents the equivalent of a one (1), for a long, and a zero (0), for a short. Each position in the sequence
has a binary weight. The first is given a weight of 1, while the second would be 2, the third 4, etc.
9.4 Counted
To determine the error code, first identify the total number of flash/beeps in the sequence group not yet caring if they are long or
short flash/beeps. The total count (before a long pause) will determine what group the error falls into (9.6). Next, for each
flash/beep signal which is short (0) the binary weight associated with it is not counted. For each long (1) flash/beep signal the
binary weight associated with it is counted.
9.5 Example
The following example is provided for determining an error code. The error code sequence is represented below by the following:
[Short] [Long] [Long] [Short] ............... the sequence repeats after a long quiet pause
LSB First …….….MSB Last
Determining the error code is as follows:
-a- The number of flash/beep signals in the sequence is four (4).
-b- Counting from the first flash/beep signal each has the weight of: 1 ; 2 ; 4 ; 8 respectively.
-c- Only the middle two are counted. The error code is: 2 + 4 = 6.
-d- The error code 6 is listed in the table of errors under the four code sequence.
-e- This error indicates that the Printhead Lever is Opened.
-f- See section 9.6 for the table of error codes. Note also that the error codes are printed
on the system help report, refer to section 4.8 “Errors Help”.
ITK 38 User’s Manual Version V1.03
Date: (7/2/09)
File: UMITK103.pdf
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