Pr30 – minimum length, Pr31 – minimum height, Pr32 – maximum length – MagTek MICRImage User Manual
Page 53: Pr33 – maximum height, Pr34 – micr threshold

Section 6. Property Commands
45
BC5 SO
to decode the two barcode 128 symbols defined in PR20.
TI F3 S8
to send the current image named IMAGE.TIF containing the tag “MY TAG” to the
auxiliary port using the YMODEM protocol.
The limit for each of these properties is 45 characters.
PR30 – Minimum Length
Sets the minimum length for a document in pixels. A value of zero disables this limit. If the scanned
document is shorter than this length, an error is returned.
PR30=1175
PR31 – Minimum Height
Sets the minimum height for a document in pixels. A value of zero disables this limit. If the scanned
document is less than this height, an error is returned.
PR31=530
PR32 – Maximum Length
Sets the maximum length for a document in pixels. A value of zero disables this limit. If the scanned
document is longer than this length, an error is returned.
PR32=1250
PR33 – Maximum Height
Sets the maximum height for a document in pixels. A value of zero disables this limit. If the scanned
document is higher than this height, an error is returned.
PR33=560
PR34 – MICR Threshold
Sets the MICR line noise threshold. Range 0 – 255. The useful range is approximately 8 – 25. Lower
values will allow lower amplitude characters to be read but also will make reading more susceptible to
errors caused by EMF noise. Default is 15.
PR34=15