LOADVFCB Use the LOADVFCB command to specify the forms control buffer image for a
virtual spooled 3203 or 3211 printer. The format of the LOADVFCB command is:
r----- I LOADVFCB vaddr Fcb name [Index [nn]]
L
vaddr is the virtual device address (cuu) of the virtual spooled
3203 or 3211 printer.
FCB is a required reserved keyword meaning Forms Control Buffer.
name is a system-defined name for the 3203 or 3211 FCB image which is to be the controlling virtual FCB image. INDEX [nn]
for the 3211 only, is the number of the print position that is
the first print position. The value, nn, must be a number
from 1 through 31; a leading zero need not be specified. If
the keyword INDEX is specified without a value, the index
defaults to the value specified in the FCB macro. See the a discussion of the FCB
macro and forms control images.
The 3203 does not support the index feature and rejects any
attempt to issue the INDEX operand.
1. The LOADVFCB command can be used with installations that do not
have a 3203 or 32111 printer. The virtual machine's directory entry must indicate a 3203 or 3211, even though the program and operating system have a 1403 printer defined. Then the LOADVFCB command can be used to specify a virtual FCB image for 1403 printers so that programs that use printer overflow sensing
may be spooled to disk.
2. If no virtual FCB image has been previously loaded for a spooled, 3203 or 3211 printer, the following default virtual FCB
image is used: r- , I Line spacing = 6 lines/inch 1 I 1 ILength of page = 6·6 lines I 1 1 1 Page line 11 21 31 4, 51 61 11 81 91 101 111 601 1 1 I 1 1 I I I , 1 I 1 1 I I I Channel skip 11 21 31 41 51 61 11 81 91 101 111 121 I I I I I I I , I I I I I L- I Section 5. Format of CP Commands 95

LOADVFCB
3. VM/370 provides one FCB image (FCB 1) with the following format: r , ILine spacing = 6 lines/inch 1 I 1 ILength of page 66 lines I I I I Page line 11 31 51 71 91 111 131 151 191 211 23, 641 1 1 I I 1 I I 1 I I I I 1 1 I 1 Channel skip 11 21 31 41 51 61 71 8 I 10 I 111 121 91 , 1 I 1 I 1 I I I 1 I I I L • 4. Care should be taken to load a virtual 3203 or 3211 printer with
an FCB that is compatible with an PCB used in a real 3203 or 3211.
Failure to do so can produce unpredictable results,.
None.
96 IBM VM/370 CP Command Reference for General Users