User guide

Physical Page Characteristics of the LA75 Plus Companion Printer
2.4 Vertical Text Resolution
2.4 Vertical Text Resolution
The LA75 Plus Companion Printer supports the metric line spacing parameters
under Set Vertical Pitch (DECVERP) in the Command Dictionary.
The LA75 Plus Companion Printer uses approximations for the metric line
spacing parameters. These approximations are given in Table 2–2.
Table 2–2 Text Vertical Pitch Fallbacks
Target Pitch
Actual
1/720 inch Fallback Pitch
1 line/cm
(2.54 line/in)
283 1.002 line/cm
2.544 line/in
2 line/cm
(5.08 line/in)
142 1.996 line/cm
5.070 line/in
4 line/cm
(10.16 line/in)
71 3.992 line/cm
10.141 line/in
2.5 Limits on Partial Line Motion
When the automatic sheet feeder is installed, the LA75 Plus Companion
Printer limits the PLU count to 12, or 1 inch. This is due to vertical backup
limitations.
In bottom feed mode, the LA75 Plus Companion Printer ignores PLU and PLD
sequences due to mechanical limitations.
In all feed modes, the LA75 Plus Companion Printer ignores PLU and PLD
sequences when within 1.3 inches (3.3 cm) from the bottom of the paper.
2.6 Tabs
The LA75 Plus Companion Printer supports a maximum of 144 horizontal tabs
and a maximum of 252 vertical tabs.
2.7 Automatic Sheet Feeder Control (DECASFC)
The automatic sheet feeder supported by the LA75 Plus Companion Printer
has only one tray. This causes the DECASFC sequence to perform a conditional
Sheet Feed.
If the sheet feeder is not installed, the printer performs a conditional Sheet
Feed on receipt of DECASFC.
2–4 Physical Page Characteristics of the LA75 Plus Companion Printer