FUJITSU M304X User Manual

Page 70

5.3.1 Character codes

The

code is used as standard the character code.

If the printer receives a character code not specified in the character code
table or not included on the print band, the code is changed to the space code

or to a character code specified by setting, and no character is

printed.

If a character code from X'AO' to X'FE' is received

7-bit mode,

the Data Bit 8 signal can be ignored (regarded as 0) by setting, and a

character corresponding to each code from

is printed.

For the

setting method,

refer to Operator's Guide.

When receiving character codes, the printer sequentially loads them in its

internal buffer

Characters corresponding to the loaded character codes

are printed after a control code is received.

is cleared after

printing.

The character code received next is for column 1.

5.3.2 Control code

The line feed

vertical tab (VT), form feed

carriage return (CR),

FCB command control,

DC3, start, stop, bell

and

delete (DEL) codes are control codes contained in the area

boldfaced lines in Table 6.2.

The LF, VT, FF, CR, and FCB command control

codes are called data transferred termination codes

The printer starts an operation such as printing, forms feed, loading data, or
modifying a set mode when the control code is received.

(1) Data transfer termination code

Once it starts receiving data, the printer continues to

data

unless it receives a DTTC, such as the CR code and FCB command control

code,

or the number of received character codes reaches

(136 can be

specified) (buffer-full state).

When terminating data

the

printer sets the Busy signal to 1 and prints the received data.

Then, the

printer advances the form as specified. However, if the 'LF, VT, or FF

code is received before the buffer becomes full or before the CR code is
received,

the printer can advance the form as

printing

received data.

This is set from the operator panel.

The data remaining

in the PDB is not printed unless the buffer becomes full

the CR code is

received.

LF code

When it receives the LF code, the printer advances one line.

b .

VT code

When it receives the VT code, the printer advances forms to the next
vertical tab channel position, which is set from the operator panel,

except the TOF and BOF channels.

The VT code can be set as the LF

code from the operator panel.

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