Communication channels – Apple LaserWriter Select 310 Printer User Manual
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setcacheparams
37
setpacking 38
Printer Error Parameter
38
printererror
39
PostScript Language Changes
39
Packed Arrays
40
Packed Arrays Versus Ordinary Arrays
40
Creating Packed Arrays
40
Immediately Evaluated Names
41
Changes in Font Cache Operation
42
Device Resolution Images
42
End-of-Line Recognition
43
New Operators
44
TrueType Fonts
44
Chapter 3
Communication Channels
45
Serial Communication
46
Baud Rates
46
Parity Settings
47
Flow Control
47
DTR Flow Control
47
XON/XOFF Flow Control
48
SCC Operator Encoding
48
Communication Protocols
49
Simple Communication Protocol
49
Binary Communication Protocol
50
Communicating with an IBM PC
52
Parallel Interface
52
Serial Interface
53
DTR Flow Control for PC Communication
53
XON/XOFF Flow Control for PC Communication
54
Communication Dynamics
54
Status Queries and Spontaneous Messages
55