Programmer's Guide
PcOS Series 90PLUS
Communications
Parallel port
12/16/99
Rev M
Page 141
To synchronize inquire commands with the operation of the PE signal, the printer will remain busy after
the second byte of an inquire command until the inquire command is processed. This typically takes about
100 microseconds.
PE
DATA
STROBE
BUSY
ACK
Valid
ID
Next
Figure 26 PE to ENQ request timing
It should be noted that inquire commands are preprocessed (looked at and processed as they are received).
This prevents the buffer from being filled with inquire commands. However, if data pass-through is active
inquire processing must be off. If it is on, the inquire sequences will be stripped from the pass-through
data.
8.2.5
Parallel Port Plug and Play
Microsoft Windows implements Plug and Play (PnP) by doing a special parallel, IEEE 1284 inquire
during boot. The Series 90PLUS Printer will respond to this inquire if IEEE 1284 is active.
If the Windows PnP configuration flag is set in the printer, IEEE 1284 will be active for all parallel port
modes. For example, PnP in parallel mode forces IEEE 1284. For PnP to work, the host must have an
IEEE 1284-compatible port adapter, and the cable used to connect to the printer must support all of the
interface signals.
The PnP response follows.
Device ID string:
MANUFACTURER
Ithaca-Periph.;CMD:M90CL,IPCL;CLS:PRINTER;MDL S90
PcOS;DES:Ithaca-Peripherals Series 90;REV:02.13;OPTS;$9xyz
PnP ID
LPTENUM\Ithaca-Periph.S90_PcECB3
DEVICE DESCRIPTION
Ithaca-Peripherals Series 90
DEVICE CLASS
Printer
The OPTS field is always
OPTS;$9XYZ
Where X is a model definition, X and Y are bit fields that designate the options attached to the printer.
Y
X
Bit 0
→
Print zone
Bit 0
→
Validation present
Bit 1
→
Undefined
Bit 1
→
Knife module attached
Bit 2
→
Undefined
Bit 2
→
MICR module attached
Bit 3
→
0
Bit 3
→
0
Bits 4 - 5
→
1
Bits 4 - 5
→
1
Bits 6 - 7
→
0
Bits 6 - 7
→
0
Содержание PcOS series 90plus
Страница 1: ...P OS c SERIES 90PLUS Receipt Validation Journal Printers PROGRAMMER S GUIDE Rev M PN 100 7586 ...
Страница 2: ......
Страница 6: ...PcOS Series 90PLUS Programmer s Guide Page iv Rev M 12 16 99 ...
Страница 139: ...Programmer s Guide PcOS Series 90PLUS Product Self Tests 12 16 99 Rev M Page 127 73 Italian ...
Страница 143: ...Programmer s Guide PcOS Series 90PLUS Product Self Tests 12 16 99 Rev M Page 131 RTS and DTR flow ...
Страница 179: ......
Страница 180: ...INSERT PN 100 7307 Rev M 12 16 99 ...