HP 5961-0509 manual Continuation B, Descriptor Size UB, Class UB

Continuation (B)

This is the second (and last) byte of every character data block header. It specifies whether the following data is the first (0) data block of a new character definition, or a continuation (1) block for a character definition which has already been received by the printer. Because the value field in a Character Definition command is limited to 32767 bytes, characters whose byte count exceed this must be sent in two or more blocks.

Descriptor Size (UB)

This is the first byte of the character descriptor. It specifies the size of the character descriptor in bytes. The descriptor size used by the HP LaserJet printer family for bitmap fonts is 14.

Class (UB)

Specifies the format of the character data. For bitmap fonts only values 1 and 2 are used, as described below.

Table 11-38

Value Class

1Bitmap

2Compressed Bitmap

3*	Contour (Intellifont Scalable)
4*	Compound Contour (Intellifont Scalable)
15*	TrueType Scalable

* These are described later in this chapter.

EN Character Descriptor Formats 11-53