FP-550F 3
-When entering the “pay” command for the first time the accumulated sum
(arranged according to the tax groups) is also printed. With the entering of a free text
the receipt continues with the name, the address and other data on the buyer (a space
for placing the client’s signature must also be foreseen). The document is closed with
the command 56 - the result is a fully valid tax receipt.
Non-fiscal receipt
Non-fiscal receipts print information, which does not illustrate the registering of sales.
For example, they may offer information on the orders made in a restaurant before the
payment of the final bill - this final bill must be a fiscal receipt.
Opening a non-fiscal receipt
Command: 38 (26h)
Data: “ “ empty string
The command initiates the printing of a header - after which a new command is
anticipated.
Free, non-fiscal text
Command - 42(2Ah)
Data: Free text
A freely entered text is entered within a framework of 30 symbols per line. The command
can be executed an indefinite number of times.
Closing a non-fiscal receipt
Command - 39 (27h)
Data - ” ” empty string
The date and hour are printed as well as the non-fiscal logo and the order number of the
printer. The printer is then ready for accepting new commands.
PROGRAM SUPPORT
To function normally the program for operating the fiscal printer must be able to control
the execution of the commands, which often fail mainly due to the lack of paper, the
sending of invalid commands or simply because of some minor cable problem. The
current status of the printer is monitored by 5 bytes, returned by the command. Part of
the bits are informative /opened non-fiscal receipt for instance/, others indicate error
/no paper, invalid command, etc./. The program must inform of existing errors or - if
possible - react to these errors.
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