POSIFLEX AURASeries Installation instructions

Aura Printer Series
Command Manual
Rev. 1.01
http://www.posiflex.com
Command Manual - Page 1

COMMAND List
Command Hex Code Description Page
HT 09 Horizontal tab 5
LF 0A Print and line feed 5
FF 0C Print and return to standard mode 6
CR 0D Print and carriage return 6
DLE EOT 10 04 n Real-time status transmission 7
DLE ENQ 10 05 n Real-time request to printer 10
DLE DC4 10 14 Generate pulse in real-time 11
CAN 18 Cancel print data in page mode 11
ESC FF 1B 0C Print data in page mode 12
ESC SP 1B 20 Set right-side character spacing 13
ESC ! 1B 21 Select print mode(s) 14
ESC $ 1B 24 Set absolute print position 14
ESC % 1B 25 Select/cancel user-defined character set 14
ESC & 1B 26 Define user-defined characters 15
ESC * 1B 2A Select bit-image mode 17
ESC – 1B 2D Turn underline mode on/off 19
ESC 2 1B 32 Select default line spacing 19
ESC 3 1B 33 Set line spacing 19
ESC = 1B 3D Select peripheral device 20
ESC ? 1B 3F Cancel user-defined characters 20
ESC @ 1B 40 Initialize printer 21
ESC D 1B 44 Set horizontal tab positions 21
ESC E 1B 45 Turn emphasized mode on/off 22
ESC G 1B 47 Turn double-strike mode on/off 22
ESC J 1B 4A Print and feed paper 22
ESC L 1B 4C Select page mode 23
ESC M 1B 4D Select character font 23
ESC R 1B 52 Select an international character set 24
ESC S 1B 53 Select standard mode 24
ESC T 1B 54 Select print direction in page mode 25
Command Manual - Page 2

ESC V 1B 56 Turn 90 clockwise rotation mode on/off 25
ESC W 1B 57 Set printing area in page mode 26
ESC \ 1B 5C Set relative print position 27
ESC a 1B 61 Select justification 27
ESC c 3 1B 63 33 Select paper sensor to output paper-end signal 28
ESC c 4 1B 63 34 Select paper sensor(s) to stop printing 29
ESC c 5 1B 63 35 Enable/disable panel buttons 30
ESC d 1B 64 Print and feed n lines 30
ESC i 1B 69 Cut Paper 30
ESC p 1B 70 Generate pulse 31
ESC t 1B 74 Select character code table 31
ESC { 1B 7B Turn upside-down printing mode on/off 32
FS p 1C 70 Define NV-Bitmap image 33
FS q 1C 71 Print NV-Bitmap image 34
GS ! 1D 21 Select character size 35
GS $ 1D 24 Set absolute vertical print position in pagemode 36
<GS> ( A 1D 28 41 Execute test print 36
1D 28 6B 03
00 30 41
Function 065: Sets the number of columns of
the data area for PDF417.
37
1D 28 6B 03
00 30 42
Function 066: Sets the number of rows of data
area for PDF417.
37
1D 28 6B 03
00 30 43
Function 067: Sets the module width of one
PDF417 symbol to n dots.
38
1D 28 6B 03
00 30 44
Function 068: Sets the module height. 38
1D 28 6B 03
00 30 45
Function 069: Sets the error correction level for
PDF417 symbols.
38
1D 28 6B 03
00 30 46
Function 070: Specifies or cancels various
PDF417 symbol options.
40
1D 28 6B 03
00 30 50
Function 080: Stores symbol data in the
PDF417 symbol storage area.
40
1D 28 6B 03
00 30 51
Function 081: Prints the PDF417 symbol data
in the symbol storage area.
41
GS ( k
PDF 417
1D 28 6B 03
00 30 52
Function 082: Transmits the size of the symbol
data in the symbol storage area.
42
Command Manual - Page 3

1D 28 6B 04
00 31 41
Function 165: Specifies the mode for QRCode
symbol.
44
1D 28 6B 04
00 31 43
Function 167: Sets the size of the QRCode
symbol module.
44
1D 28 6B 04
00 31 45
Function 169: Sets the error correction level for
QRCode symbol.
44
1D 28 6B 04
00 31 50
Function 180: Stores symbol data in the
QRCode symbol storage area.
45
1D 28 6B 04
00 31 51
Function 181: Prints the QRCode symbol data
in the symbol storage area.
46
GS ( k
QR Code
1D 28 6B 04
00 31 52
Function 182: Transmits the size of the symbol
data in the symbol storage area.
47
GS * 1D 2A Define downloaded bit image 48
GS / 1D 2F Print downloaded bit image 49
GS : 1D 3A Start/end macro definition 50
GS B 1D 42 Turn white/black reverse printing mode 50
GS H 1D 48 Select printing position of HRI character 51
GS I 1D 49 Transmit printer ID 51
GS L 1D 4C Set left margin 52
GS P 1D 50 Set horizontal and vertical motion units 53
GS V 1D 56 Select cut mode and cut paper 53
GS W 1D 57 Set printing area width 54
GS \ 1D 5C Set relative vertical print position in page 55
GS ^ 1D 5E Execute macro 56
GS a 1D 61 Enable/disable Automatic Status Back ( 57
GS b 1D 62 Turn smoothing mode on/off 59
GS f 1D 66 Select font for HRI characters 60
GS h 1D 68 Set bar code height 60
GS k 1D 6B Print bar code 60
GS r n 1D 72 Transmit status 64
GS v 0 1D 76 Print raster bit image 66
GS w 1D 77 Set bar code width 67
Command Manual - Page 4

COMMAND DETAILS
CODES (HEX/CONTROL): <09> / {HT}
NAME: Horizontal tab
FUNCTION: Moves the print position to the next horizontal tab
position
EXPLANATION:
1. If all horizontal tab position has been cleared by {ESC} D {NUL}, this command
is ignored.
2. The default setting of the horizontal tab positions are set at every 8th character
(9th, 17th, 25th, …column).
3. If there is no more horizontal tab position set to the right of the print position
within the printing area, this command advances print position to the beginning
of next line.
4. Horizontal tab positions can be set with {ESC} D command. When horizontal
tab positions are set in font A (12 x 24) characters printing mode, switching
into font B (8 x 16) characters mode the tab positions will still align to that in
font A printing.
5. Horizontal tab positions can be reset to default values with {ESC} @.
6. Since the printer executes print buffer-full printing when print data before a {LF}
received exceeds a line’s worth, if this command is received when the printing
position is already at next line the horizontal tab processing is executed from
the beginning of this next line.
CODES (HEX/CONTROL): <0A> / {LF}
NAME: Print and line feed
FUNCTION: Print data in print buffer and feed one line
EXPLANATION:
1. Print buffer is cleared after data printed. In text mode. When printer receives
data more than a line’s worth before a {LF}, the printer executes print buffer-
full printing.
2. Paper advances by one line based on the current line spacing after print.
Command Manual - Page 5

3. In page mode the printing and paper feed does not actually occur on receiving
this command. But the data after {LF} will be arranged in next line.
4. This command sets the print position to the beginning of the line after line feed.
CODES (HEX/CONTROL): <0C> / {FF}
NAME: Print and return to text mode in page mode
FUNCTION: Prints the data in the print buffer collectively and
returns to text mode
EXPLANATION:
1. This command works only in page mode.
2. The buffer data is cleared after being printed.
3. The last printing settings in page mode printing such as underline, character
font, emphasized, double strike, character size and reverse printing remain the
same for text mode printing after this command.
4. The printing area set by {ESC} W in page mode remains the same after this
command.
5. The printer does not execute paper cutting by this command.
6. This command sets the print position to the beginning of line in text mode.
CODES (HEX/CONTROL): <0D> / {CR}
NAME: Carriage return
FUNCTION: Set the printing position to the beginning of the
line
EXPLANATION:
1. When automatic line feed is enabled, this command functions the same as
{LF}; when automatic line feed is disabled, this command is ignored.
2. Sets the print starting position to the beginning of the line.
3. This command is ignored in a serial interface model.
4. This command is set according to the DIP switch position 7 of SW 1 is set to
On with a parallel interface model.
Command Manual - Page 6

CODES (HEX/CONTROL): <10> <04> <n> / {DLE} {EOT} n
NAME: Real-time status transmission
FUNCTION: Transmits the selected printer status in real time
RNAGE: 1 ≤n ≤4
EXPLANATION:
1. The parameter nspecifies content group of printer status to be transmitted as
below.
n= 1: Transmit printer status
n= 2: Transmit off-line status
n = 3: Transmit error status
n= 4: Transmit paper sensor status
2. The printer transmits the current status as specified by n. Each status is
represented by one-byte data.
3. If the value of nis out of the specified range (1≤n ≤4), This command is
ignored.
4. The printer transmits the status regardless of the handshaking condition of the
host computer.
5. The printer executes this command upon receiving it regardless of
unprocessed data in receive buffer.
6. This command executes with a serial interface model even when the printer is
off-line, when the receive buffer is full, or when there is an error status.
7. With a parallel interface model, when DIP switch position 4 (or 1 - 4) is set to
OFF this command can only be executed when the printer is under normal
status (on line, no error, not busy). When DIP switch position 4 (or 1 – 4) is set
to ON, this command can not be executed when the printer is busy but can be
executed when the printer is off-line or there is an error status.
8. The status is transmitted whenever the data sequence of <10>h <04>h <n>
(1≤n ≤4) is received even when this sequence is in fact part of data in other
command. However, that command containing this data sequence still works
when it takes its turn in printer processing queue.
Example: In ESC * m nL nH d1…dk, d1=<10>h, d2=<04>h, d3=<01>h
9. This command should not be used when the printer is processing data
sequence of another command that consists of 2 or more bytes.
Example:
If the printer is going to execute {ESC} 3 nby retrieving it from input buffer,
DTR (DSR for the host computer) goes to MARK (busy) before nis retrieved,
Command Manual - Page 7

but {DLE} {ENQ} 2 interrupts before nis retrieved from input buffer, the code
<10>H for {DEL} {ENQ} 2 is processed as the code for {ESC} 3 <10>h.
10.When Auto Status Back (ASB) is enabled by using the {GS} a command, the
status transmitted by the {DLE} {EOT} command and the ASB status must be
differentiated.
11.Status responses from the printer are regulated in tables below as defined by
value of n.
n =1: Printer status
Bit Off/On Hex Decimal Function
0 Off 00 0 Not used. Fixed to Off
1 On 02 2 Not used. Fixed to On
Off 00 0 Drawer open/close signal is LOW (connector pin 3)2
On 04 4 Drawer open/close signal is HIGH (connector pin
3)
Off 00 0 On-line3
On 08 8 Off-line
4 On 10 16 Not used. Fixed to On
5,6 - - - Undefined
7 Off 00 00 Not used. Fixed to Off
n =2 : Off-line status
Bit Off/On Hex Decimal Function
0 Off 00 0 Not used. Fixed to Off
1 On 02 2 Not used. Fixed to On
Off 00 0 Cover is closed2
On 04 4 Cover is open
Off 00 0 FEED button is used for macro execution3
On 08 8 FEED button is used to feed the paper
4 On 10 16 Not used. Fixed to On
5 Off 00 0 Not used Fixed to Off
Off 00 0 No error6
On 40 64 Error occurs
7 Off 00 0 Not used Fixed to Off
Bit 6: Errors indicated by this bit do not include cover open neither paper jam.
n =3: Error status
Bit Off/On Hex Decimal Function
Command Manual - Page 8

0 Off 00 0 Not used. Fixed to Off
1 On 02 2 Not used. Fixed to On
2 - - - Undefined
Off 00 0 No auto-cutter error3
On 08 8 Auto-cutter error occurs
4 On 10 16 Not used. Fixed to On
Off 00 0 No unrecoverable error5
On 20 32 Unrecoverable error occurs
Off 00 0 No auto-recoverable error6
On 40 64 Auto recoverable error occurs
7 Off 00 0 Not used. Fixed to Off
Bit 3: The auto cutter error together with cover open error, paper near end status,
paper end status and paper jams status are considered as recoverable errors.
Because it is possible to recover to non-errors status by correcting the cause of
the error and executing {DLE} {ENQ} n(1 ≤n ≤2)
Bit 5:if an error due to improperly shut down or a circuit failure (e.g. wire break)
occurs, it is impossible to recover.
Bit 6:When printing is stopped due to high print head temperature until the print
head temperature drops sufficiently or when the paper roll cover is open during
printing bit 6 is On.
n = 4: Continuous paper sensor status
Bit Off/On Hex Decimal Function
0 Off 00 0 Not used. Fixed to Off
1 On 02 2 Not used. Fixed to On
Off 00 0 Paper roll near-end sensor: paper adequate2,3
On 0C 12 Paper roll near-end sensor: paper near-end
4 On 10 16 Not used. Fixed to On
Off 00 0 Paper end sensor: paper present5,6
On 60 96 Paper end sensor: paper end
7 Off 00 0 Not used. Fixed to Off
Command Manual - Page 9

CODES (HEX/CONTROL): <10> <05> <n>/ {DLE} {ENQ} n
NAME: Real-time request to printer
FUNCTION: Request to printer in real-time
RANGE: 1 ≤n ≤2
EXPLANATION:
1. The parameter nspecifies content according to the printer status as below:
n=1 Recover from an error and restart printing from the line where the error
occurred.
n= 2 Recover from an error aft clearing the receive and print buffers.
2. This command is effective only when an auto-cutter error occurs.
3. This printer starts processing data upon receiving this command.
4. This command executes with a serial interface model even when the printer is
off-line, when the receive buffer is full, or when there is an error status.
5. With a parallel interface model, when DIP switch position 4 (or 1 - 4) is set to
OFF this command can only be executed when the printer is under normal
status (on line, no error, not busy). When DIP switch position 4 (or 1 – 4) is set
to ON, this command can not be executed when the printer is busy but can be
executed when the printer is off-line or there is an error status
6. The status is also transmitted whenever the data sequence of
<10>h<05>h<n>(1≤n≤2) is received.
Example:
In {ESC} * m nL nH dk, d1= <10>h, d2=<05>h, d3=<01>h
6. This command should not be contained within another command that consists
of two or more bytes.
Example:
If you attempt to transmit {ESC} 3 nto the printer, but DTR (DSR for the host
computer) goes to MARK before nis transmitted, and {DLE} {ENQ} 2
interrupts before nis received, the code <10>h for {DEL} {ENQ} 2 is processed
as the code for {ESC} 3 <10>h.
7. {DLE}{ENQ} 2 enables the printer to recover from an error after clearing the
data in the receive buffer and the print buffer. The printer retains the settings
that were in effect when the error occurred. The printer can be initialized
completely by using this command and {ESC} @. This command is enabled
only for errors that have the possibility of recovery, except for print head
temperature error.
Command Manual - Page 10

CODES (HEX/CONTROL): <10> <14> <n> <m> <t>/ {DLE} {DC4} n
mt(fn = 1)
NAME: Generate pulse in real-time
FUNCTION: Generate pulse in real-time
RANGE: n = 1, m = 0,1, 1≤t ≤8
EXPLANATION:
1. Outputs the pulse specified by t to connector pin m as follows in real time:
The pulse ON time is [t ×100 ms] and the OFF time is [t ×100 ms]
m Connector pin
0 Drawer kick-out connector pin 2
1 Drawer kick-out connector pin 5
2. When the printer is in an error status when this command is processed, this
command is ignored.
3. When the pulse is output to the connector pin specified while ESC p or DEL
DC4 is executed while this command is processed, this command is ignored.
4. The printer executes this command upon receiving it.
5. With a serial interface model, this command is executed even when the printer
is off-line, the receive buffer is full, or there is an error status.
6. With a parallel interface model, this command cannot be executed when the
printer is busy. This command is executed even when the printer is off-line or
there is an error status when DIP switch 2-1 is on.
7. If print data includes the same character strings as this command, the printer
performs the same operation specified by this command. The user must
consider this.
8. This command should not be used within the data sequence of another
command that consists of 2 or more bytes.
9. This command is effective even when the printer is disabled with ESC =
(Select peripheral device).
CODES (HEX/CONTROL): <18> / {CAN}
NAME: Cancel print data in page mode
FUNCTION: In page mode, deletes all the print data in the
printing buffer
Command Manual - Page 11

EXPLANATION:
1. This command executed only in page mode. It is ignored in text mode.
2. All data in page mode print buffer will be cleared. If a repeatable print has
been performed, the printed data will be cleared from print buffer by this
command, but all printing settings including print position remain. In other
words, the starting position for next printing in Page mode follows last position
printed.
CODES (HEX/CONTROL): <1B> <0C> / {ESC} {FF}
NAME: repeatable print data in page mode
FUNCTION: Repeatable print all buffered data
EXPLANATION:
1. This command works only in page mode.
2. In page mode, this command can repeatable print all buffered data. After
printing, it still in page mode does not return to text mode.
3. After printing, the printer does not clear the buffered data, and all printing
settings including print position remain. In other words, the starting position for
next printing in Page mode follows last position printed.
CODES (HEX/CONTROL): <1B> <20> <n>/ {ESC} {SP} n
NAME: Set right-side character spacing
FUNCTION: Set right-side character spacing
RANGE: 0 ≤n ≤255
EXPLANATION:
1. Set the character spacing for the right side of the character to (nx horizontal or
vertical motion units).
2. The right-side character spacing for double-width mode is double the normal
value. When characters are enlarged, the right-side character spacing is
follows characters enlarged ntimes for normal value.
3. The underline mode is available in right-side character spacing.
4. If the right-side character spacing exceeds printing area, the printer sets the
printing position to the beginning of next line.
Command Manual - Page 12

5. This command sets values independently in each mode (text and page
modes).
CODES (HEX/CONTROL): <1B> <21> <n> / {ESC} ! n
NAME: Select print mode
FUNCTION: Selects print mode
RANGE: 0 ≤n ≤255
EXPLANATION:
1. This command specifies nas follows:
Bit Off/On Hex Decimal Function
Off 00 0 Character font A (12 x 24)0
On 01 1 Character font B (8 x 16)
1 - - - Undefined
2 - - - Undefined
Off 00 0 Emphasized mode not selected3
On 08 8 Emphasized mode selected
Off 00 0 Double-height mode not selected4
On 10 16 Double-height mode selected
Off 00 0 Double-width mode not selected5
On 20 32 Double-width mode selected
6 - - - Undefined
Off 00 0 Underline mode not selected7
On 80 128 Underline mode selected
2. When both –height and double-width modes are selected, quadruple size
characters are printed.
3. The printer can underline all characters, but can not underline the space set by
{HT} or 90°clockwise rotated characters.
4. The thickness of the underline is that selected by {ESC} -, regardless of the
character size.
5. When some characters in a line are double or more height, all the characters
on the line are aligned at the baseline.
6. {ESC} E can also turn on or off emphasized mode. However, the setting of the
last received command is effective.
7. {ESC} - can also turn on or off underline mode. However, the setting of the last
Command Manual - Page 13

received command is effective.
8. {GS} ! can also select character size. However, the setting of the last received
command is effective.
.
CODES (HEX/CONTROL): <1B> <24> <nL> <nH> / {ESC} $ nL nH
NAME: Set absolute print position
FUNCTION: Sets the distance from the beginning of the line
RANGE: 0 ≤nL ≤255 0 ≤nH ≤255
EXPLANATION:
1. Sets the distance from the beginning of the line to the position at which
subsequent characters are to be printed.
2. The distance from the beginning of the line to the print position is [nL + nH x
256] x (vertical or horizontal motion unit in inches)].
3. Settings outside the specified printable area the printer set the printing position
to the beginning of next line.
4. If left margin has been set before absolute print position the left margin value
depend on the absolute print position.
5. In text mode, the horizontal motion unit xis used.
6. In page mode, horizontal or vertical motion unit differs depending on the
starting position of the printable area as follows:
1. When the starting position is set to the upper left or lower right of the
printable area using {ESC} T, the horizontal motion unit xis used.
2. When the starting position is set to the upper right or lower left of the
printable area using {ESC} T, the vertical motion unit yis used.
CODES(HEX/CONTROL) : <1B> <25> <n> / {ESC} % n
NAME: Select/cancel user-defined character set
FUNCTION: Select or cancels the user-defined character set
RANGE: 0 ≤n ≤255
EXPLANATION:
1. When the LSB of n= 0 the user-defined character set is canceled.
Command Manual - Page 14

When the LSB of n= 1 the user-defined character set is selected.
2. When the user-defined character set is canceled, the internal character set
is automatically selected.
3. nis available only for the least significant bit.
CODES (HEX/CONTROL): <1B> <26> <y> <c1> <c2> [<x1>
<d(1,1)> … <d(1,(y xx1))>] … [<xk> <d(k,1)> ... <d(k,(y xxk))>] /
{ESC} & y c1c2[x1d(1,1) … d(1,(y xx1)) … [ xkd(k,1) ... d(k,(y x xk)]
NAME: Define user-defined characters
FUNCTION: Define user-defined characters
RANGE: y = 3 20 ≤c1 ≤c2 ≤126 k = c2 - c1 + 1 0 ≤d ≤255
0 ≤x ≤0C for Font A (12 x 24) 0 ≤x ≤09 for Font B (8 x 16)
EXPLANATION:
1. Parameter y represents the number of bytes in vertical direction.
2. c1specifies the beginning character code for the definition, c2specifies the
final code, and each xspecifies the number of dots in the horizontal direction.
3. The allowable character code range is from ASCII code {20}h to{7E}h (95
characters).
4. It is possible to define multiple characters for consecutive character codes. If
only one character is desired, use c1=c2
5. The later definition of user-defined characters will replace the previous value.
6. d’s are the dot data for the characters. The dot pattern is the horizontal
direction from the left side. Any remaining dots on the right side are blank.
Refer to example next page for detail.
7. When the user-defined characters are used to define characters in font B (8 x
16), every 3 rd byte of data is non-effective.
8. The user-defined character definition is cleared when:
 {ESC} @ is executed
 {ESC} ? is executed
 {FS} q is executed
 {GS} * is executed
 The printer is reset or the power is turned off
Command Manual - Page 15

9. Examples:
When font A (12 x 24) is selected:
12 dots
24 dots
MSB
LSB
d1 d4 d7 ... d34
d2 d5 … ... d35
d3 d6 … ... d36
To define above character to code 41h (to replace “A”), the whole command
would then be (in hexadecimal): 1B 26 03 41 41 0C 04 7E 40 08 81 20 10 81 10
08 81 08 04 7E 04 00 00 04 04 7E 04 08 81 08 10 81 10 08 81 20 04 7E 40 00 00
00
When font B (8 x 16) is selected:
8 dots
MSB
LSB
d1 d4 d7 … d22
16dots
d2 d5 … … d23
d3 d6 … … d24
To define above character to code 41h (to replace “A”), the whole command
would then be (in hexadecimal): 1B 26 03 41 41 08 0F F0 00 10 04 00 08 02 00
02 01 00 08 02 00 10 04 00 0F F0 00 00 00 00
CODES (HEX/CONTROL): <1B> <2A> <m> <nL> <nH> <d1>…<dk> /
{ESC} {*} {m}{nL}{nH}{d1}…{dk}
Command Manual - Page 16

NAME: Select bit-image mode
FUNCTION: Selects bit-image mode
RANGE: m=0,1,20,21 0≤nL ≤FF 0≤nH ≤03 0≤d ≤FF
EXPLANATION:
1. This command specifies {m} for the number of dots by {nL} and {nH}, as
follows:
Vertical Direction Horizontal Direction
{m}Mode
(Density) Number
of dots
Dot
Density
Dot
Density Number of Data (k)
0 8-dot single 8 60 DPI 90 DPI {nL} +{nH}x 256
1 8-dot double 8 60 DPI 180 DPI {nL} +{nH}x 256
20 24-dot
single 24 180 DPI 90 DPI [{nL} +{nH}x 256] x 3
21 24-dot
double 24 180 DPI 180 DPI [{nL} +{nH}x 256] x 3
2. If the values of {m} is out of the specified range, {nL} and {nH} data following
are processed as normal data.
3. This command works in text mode and page mode.
4. The {nL} and {nH} indicate the number of dots of the bit image in the horizontal
direction. The number of dots is calculated by {nL}+ {nH} x 256
5. If the bit-image data input exceeds the number of dots to be printed on a line,
the excess as normal data.
6. {d} indicates the bit-image data. Set a corresponding bit to 1 to print a dot or to
0 to not print a dot.
7. This command is not affected by print modes: {ESC}{SP}, {ESC}{-}, {ESC}{E},
{ESC}{G}, {ESC}{M}, {ESC}{V}, {GS}{!}, {GS}{B}. Except upside-down printing
mode.
8. If the width of the printing area set by {GS}{L} and {GS}{W} less than the width
required by the data sent with the {ESC} {*} command, the following will be
performed on the line in question (but the printing cannot exceed the maximum
printable area):
1. The width of the printing area is extended to the right to accommodate the
amount of data.
2. If step 1 does not provide sufficient width for the data, the left margin is
reduced to accommodate the data.
Command Manual - Page 17

9. After printing a bit image, the printer returns to normal data processing mode.
10.The relationship between the image data and the dots to be printed is as
follows:
When 8-dot bit image is selected: d1 d2 d3
Bit-image data
d1 d2 d3
MSB
When 24-dot bit image is selected:
CODES (HEX/CONTROL): <1B> <2D> <n> / {ESC} - n
NAME: Turn underline mode on/off
FUNCTION: Turns underline mode on or off
RANGE: 0 ≤n ≤2, 48 ≤n ≤50
LSB
Bit-imag
Print data
e data
d1 d4 d7
d2 d5 d8
d3 d6 d9
MSB
LSB
Bit-image data
Print data
Single density Double density
Print data
□1 dot
d1 d2 d3 d4 d5 d6 d7 d8 d9
Forward
Bit-image data
Double density
Single density
Command Manual - Page 18

EXPLANATION:
1. Turns underline mode on or off, based on the following values of n:
n Function
0, 48 Turns off underline mode
1, 49 Turns on underline mode (1-dot thick)
2, 50 Turns on underline mode (2-dots thick)
2. The printer can underline all characters (including right-side character spacing,
user-defined character) but cannot underline the space set by {HT} and all big
image printing.
3. The printer cannot underline 90°clockwise rotated characters and white/black
inverted characters.
4. Changing the character size does not affect the current underline thickness.
CODES (HEX/CONTROL):<1B> <32> / {ESC} 2
NAME: Select default line spacing
FUNCTION: Select default line spacing
RANGE: 0 ≤n ≤255
EXPLANATION:
1. The default line spacing 1/6.75-inch (approximately 3.76 mm).
2. The line spacing can be set independently in text mode and in page mode.
CODES (HEX/CONTROL):<1B> <33> <n> / {ESC} 3 n
NAME: Set line spacing
FUNCTION: Sets the line spacing
RANGE: 0 ≤n ≤255
EXPLANATION:
1. The line spacing is [nx vertical or horizontal motion unit] inches.
2. The line spacing can be set independently in text mode and in page mode.
3. The horizontal and vertical motion unit are specified by {GS} P. Changing the
horizontal or vertical motion unit does not affect the current line spacing.
4. In text mode, the vertical motion unit yis used.
5. In page mode, this command functions as follows, depending on the starting
Command Manual - Page 19

position of the printable area:
 When the starting position is set to the upper left or lower right of the
printable area using {ESC} T, the vertical motion unit yis used.
 When the starting position is set to the upper right or lower left of the print
able area using {ESC} T, the horizontal motion unit xis used.
CODES (HEX/CONTROL):<1B> <3D> / {ESC} =
NAME: Set peripheral device
FUNCTION: Set peripheral device
RANGE: 1 ≤n ≤3, default n=1
EXPLANATION:
1. Selects device to which host computer sends data, using n as follows:
Bit Off/On Hex Decimal Function
Off 00 0 Printer disabled.0
On 01 1 Printer enabled
1-7 - - - Undefined.
2. When the printer is disabled, it ignores all data except for error-recovery
commands (DLE EOT, DLE ENQ, DLE DC4) until it is enabled by this
command.
CODES (HEX/CONTROL): <1B> <3F> <n> / {ESC} ? n
NAME: Cancels user-defined characters
FUNCTION: Cancels user-defined characters
RANGE: 20 ≤n ≤126
EXPLANATION:
1. This command cancels the pattern defined for the character code specified by
n, after the user-defined characters is canceled, the corresponding pattern for
the internal character is printed.
2. If a user-defined character has not been defined for the specified character
code, the printer ignores this command.
Command Manual - Page 20