User guide

Physical Page Characteristics of the LA75 Plus Companion Printer
2.2 Response to Form Feed (FF)
Fanfold Paper — Bottom Feed
The LA75 Plus Companion Printer assumes that the paper position prior to
any paper motion is the reference for the first top of form. Form Feed (FF)
advances the paper to the next top of form.
Cut Sheet Paper — Manual Feed
If paper is not currently loaded, Form Feed (FF) is stored and does not load
paper. If paper is currently loaded, Form Feed (FF) ejects the current sheet if
the physical paper length is equal to, or shorter than, the logical paper length,
as defined during setup or by DECSLPP. If the physical paper length is larger
that the logical paper length, Form Feed (FF) advances paper to the next top
of form.
Automatic Sheet Feeder
When the sheet feeder is installed and paper is currently loaded, Form Feed
(FF) ejects the current sheet. If no paper is currently loaded, Form Feed (FF)
inserts a sheet to top of form. When the sheet feeder is not selected (deselected
by DECASFC), Form Feed (FF) is treated the same as in Cut sheet paper,
Manual feed.
2.3 Horizontal Text Resolution
The LA75 Plus Companion Printer uses approximations for some of the pitches
listed under Set Horizontal Pitch (DECSHORP) in the Command Dictionary.
These approximations, or fallbacks for text resolution, are given in Table 2–1.
All other pitches, as listed in the Command Dictionary, are printed exactly by
the LA75 Plus Companion Printer without fallbacks.
Note
For Sixel Graphics mode resolution fallbacks, see Table 6–1.
Table 2–1 Horizontal Text Resolution and Fallbacks
Target Pitch
Actual
1/2880 inch Fallback Pitch
6.6 436 6.605
8.25 348 8.2759
13.2 218 13.21
16.5 174 16.55
10.3 288 10
Physical Page Characteristics of the LA75 Plus Companion Printer 2–3