Tally T6218 Maintenance Manual Supplement - Performance
T6218 Maintenance Manual Supplement
8
Tally Printer Corp. P/N 1149-084775
Performance
Print Speeds
The table below lists maximum attainable print speeds in LPM (lines per minute) for selected
CPI’s at 6 LPI. All number pairs indicate uppercase / lowercase.
CPI
Draft
CDF
DP
CDF
Draft
Enhanced
DP
Enhanced
Courier /
Gothic
OCR-A OCR-B
5 1800/1500
1350/1080
1800/1500 1350/1080 720/600
-
-
10 1800/1500 1350/1080 1800/1500 1350/1080 720/600 1080/830 479/378
12 1800/1500
1350/1080 983/833 720/576 720/600
-
-
13.3 1800/1500 1350/1080 983/833
720/576
720/600
-
-
15 1800/1500
1350/1080 983/833 674/540 540/450
-
-
16.7 -
- 900/700 674/540 540/450 -
-
17.1 1800/1500 1350/1080 900/700
674/540
540/450
-
-
20 -
- 900/700
674/540
540/450 - -
Plot Speeds
The table below lists maximum attainable plot speeds in inches per minute for continuous
unmixed full-spaced plot data. Half-spaced plot data may plot faster. Note that plot densities,
which are approximated, plot at the speed of the next higher exact density.
Density
Speed (IPM)
60 x 48
225
60 x 72
150
120 x 72
75
240 x 288
9.3
Most plot data will plot at the speeds shown in the table above. Certain factors can slow down
the effective plot speed:
• Plots using a high percentage of the available dot positions across successive dot rows.
This puts a large current load on the power supply, which can lead to decreased power
supply output voltage and result in poorly printed or missing dots. The plot rate is
slowed momentarily to maintain proper output voltage.
• Thermal protect algorithm can slow plot rates.
• Complicated graphics patterns. These require extra processing which may slow the plot
rate.