D.2 Printable Area Compatibility
The printable area on the DEClaser 2100 is approximately the same as the printable area on the LN03 printer. There is an approximate ¼" non- printable area around the page.
This difference does not affect applications using the predefined Page Format Selections (PFS) or applications that do not print within ¼" of the paper edge. When the LN03 printer encounters a character that exceeds the printable area, it attempts (in some instances) to shift the character so that it falls within the printable area. The DEClaser 2100 printer does not image any characters that exceed the printable area. This results in lost characters.
D.3 Protocol Compatibility
The following list contains protocol compatibility issues between the LN03 printer and the DEClaser 2100 printer.
•The LN03 rounds a relative motion of 1 decipoint down to a relative motion of 0, causing cumulative errors; the DEClaser 2100 printer keeps its position accurately. This produces a side effect when a relative motion of 0 is interpreted as a relative motion of 1 by both devices when using decipoints. This leads to 0 motion on the LN03, and a 1 decipoint motion on the DEClaser 2100.
•When trying to image past the bottom margin, the LN03 does not always wrap. Wrapping depends on the glyph shape and the line spacing. For example ``j'' may print but ``a'' may not. The DEClaser 2100 always wraps if the character box crosses the bottom margin, even though the character may not have a descender. This ensures that all characters either print, or all characters wrap, to the next page.
•You should use the level 3 device identification for the DEClaser 2100 when possible. This allows the software to be compatible with any future devices.
Some applications, such as DECmate, require you to set up the printer to respond as an LN03 printer. When the device identification is set to LN03, it responds as a base model LN03, not an LN03 PLUS, even though it may have sufficient memory for a full bitmap. See Section 4.5.5.1 for additional information about the device identification.
•The DEClaser 2100 does not support Tektronix mode; the LN03 PLUS does.
