Intermec EasyCoder 501 – Service Manual Ed. 7
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Chapter 8 Print Unit
8.7 Printhead, cont.
The 8 dots/mm (203.2 dpi) printhead contains 832 dots, which
give a maximum print width of 104 mm (4.095 inches). The same
unit of measure (dots) can be used both across and along the media
feed direction (MFD).
The 11.81 dots/mm (300 dpi) printhead contains 1280 dots, which
give a maximum print width of 108.3 mm (4.264 inches). There is
a slight difference between measures across and along the media
feed direction (MFD). Although the same designation (dot) is used,
a certain number of dots along the media feed direction represents
a shorter distance than the same number of dots across the media
feed direction, see table below. The reason is that the 8 dots/mm
density printhead and the media feed mechanism are designed
according to metric standards, whereas the 11.81 dots/mm print-
head is designed to be exactly 300 dots/inch, which is not compen-
sated for by a similar media feed. For most practical purposes, the
difference will not be noticeable.
Density: 8 dots/mm 11.81 dots/mm
203.2 dpi 300 dpi
Direction: Both directions Across MFD Along MFD
Dot size (mm): 0.125 0.085 0.083
Dot size (mils): 4.92 3.33 3.28
Dot size (inches): 0.00492 0.00333 0.00328
1 mm: 8 dots 11.81 dots 12 dots
1 inch: 203.2 dots 300 dots 304.8 dots
1/16 inch: 12.7 dots 18.8 dots 19.1 dots
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