Rice Lake Star SP298 Series Programmers Manual - Manual (Page 63)

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TM-295 mode emulation cautionary items
Since, as shown below, the paper feed pitch, dot pitch and the installation
distances between the TOF/BOF sensors and the print head differ depending on
the mechanism of the SP298 and TM-295, the printing results may not be the
same because of the differences in the mechanism. Also, even though, since the
TM-295 is a shuttle printer, the paper feed set values and actual paper feed
amount are different.
<Influence and command differences due to differences in paper feed motor
pitch and horizontal/vertical dot pitch>
Since the pitches are different, the printing results are reduced in the vertical/
horizontal direction compared to the TM-295. Especially in the page mode,
since the coordinates are controlled in dots, the printing results are reduced.
(There is a difference of n/60” dots - n/72” dots in the Y direction.)
In the case of the line mode, since the difference in the paper feed pitch is
absorbed as much as possible, the commands which are connected with the n/
60 inch unit paper feed (<ESC> “3” n, <ESC> “J” n, <ESC> “K” n) use
INT((6n/5)+0.5).
However, since even in this case, depending on the value of n, the paper feed
amount may not be exactly the same, the vertical direction printing position may
be different.
Difference SP298 TM-295
Difference in the paper feed motor
pitch
1/144 inch units 1/60 inch units
Difference in the vertical direction
dot pitch
0.353mm 0.423mm
Difference in the horizontal
direction dot pitch
0.30mm 0.315mm
Difference in the distance from the
top of the paper to the top of the
print head
26.5mm
(When automatically feeding)
26.5mm ~ 36.5mm
Variable with mechanical
stopper
Difference in the distance from the
TOF sensor to the top of the print
head
26.0mm
3.0mm ~ 13.0mm
Variable with mechanical
stopper
Difference in the distance from the
BOF sensor to the bottom of the
print head
38.1mm 27.3mm