Asynchronous Terminals and Printer Processes Programming Manual

PRINTER I/O
Form Control Characteristics
The CONTROL procedure advances forms according to the DAVFU or
by moving them a specified number of lines. The operations
performed by CONTROL depend on the printer device subtype.
Example
Except for 5515/5516, 5512, and 5573 printers using TAP or T-TAP, |
the file system does not automatically set the form to top of |
form at file open time. This permits the operator to install and |
align a special form. The application can cause the paper to be
positioned at top of form at open time as follows:
LITERAL FORMS^CTRL = 1,
TOF = 0,
SKIP^ONE^HALF = 5;
.
.
CALL OPEN ( PTR^FNAME, FILE^NUM, EXCL^ACC );
IF < THEN ... ; !error
CALL CONTROL ( FILE^NUM, FORMS^CTRL, TOF );
.
Line-Configuration Characteristics
ATP6100 and SERIALPRINTPROCESS have similar line-configuration
capabilities. Table 5-5 lists the parameters and shows how to
change each one. Some of the parameters are discussed in detail
below.
November 1987 5-9