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 9 

 

4. Functions 
4.1 Function setting 
      The printer has DIP switches on the control board to make various function settings. 

   DIP SW 

 Functions 

ON 

OFF 

Factory 

setting 

S1-1 CR 

operation 

Effective 

Ineffective 

Off 

S1-2 Japanese 

 

Shift 

JIS 

JIS 

Off 

S1-3 

Near end sensor 

Ineffective 

Effective 

Off 

S1-4 

Print density select * 

+25% up 

Standard level 

Off 

S1-5 Not 

defined 

Off 

S1-6 

Data transfer speed 

38400bps 

19200bps 

Off 

S1-7 

Hex Dump print 

Hex Dump 

Normal print 

Off 

S1-8 Connection 

Single 

connect 

Receipt/Journal

connection 

On 

    * Note: The print speed decreases when printed with print d25% up (DIP SW-4 On). 

Data is read (transferred) only when power is set on and hardware/software are reset. 

 
4.2 Sensor 
      The printer has a switch sensor at each mechanical section to monitor its operation and the 

operational status will be uploaded to the host. 

No 

Name of sensor 

Status 

Monitor (value) 


 

 

 
 

 

Near end sensor 
 
No paper sensor 
 
Lever open switch 
 
 
Platen open switch 
 
Head temp. sensor 

Monitors remaining of paper. Print is 
available. 
Sensors no paper status. Print stops.   
 
Monitor switch for platen open/close 
lever. Print stops if it monitors during 
printing. 
Open/close switch of platen. Print stops 
if monitors during printing. 
Protects head from overheating. 
Out of normal condition with head 
  temp. over 80

°

.  

Print stops. Below 65

°

  it automatically starts printing.   

Less than about Ø24 
 
Paper existence 
 
Operation of platen 
open/close lever. 
 
Open/close of platen 
 
Higher than 80

°

z

  When the sensor results of 2, 3, 4 and 5 become normal, the printer will be in the 

on-line status (printing is available). 

 

Summary of Contents for NP-255

Page 1: ...on Revision 1 01 2001 10 19 2 edition Revision 1 02 2002 01 16 3 edition Revision 1 03 2002 07 15 4 edition Revision 1 04 2002 09 26 5 edition Revision 1 05 2003 06 09 6 edition Specifications stated...

Page 2: ...Add Kobayashi 2002 01 16 Abe 2002 01 16 1 Features Add Windows 5 Safety regulation EMC Changed 15 Printer Drivers Add 30 Overseas Code Table Change 80h to Euro Mark 1 03 4 External Drawing Changed Pl...

Page 3: ...ions 7 3 4 Connections 8 4 Functions 4 1 Function setting 9 4 2 Sensor 9 4 3 Error 10 4 4 Feed switch 11 4 5 How to rewrite firmware 11 4 6 Hex Dump print 12 4 7 Self print 13 4 8 Buffer full print 13...

Page 4: ...th sharp edge or something hard or give impact The heat element may be damaged 6 Set the power of printer off before connecting or removing connecters 7 When printing in high speed under low temperatu...

Page 5: ...ing mechanism 3 High speed printing 85mm sec for ASCII full digit print excluding communication time 4 Center control at the host is available by uploading various types of preventive information 5 Do...

Page 6: ...ing Cover open SW FEED SW Paper rewinding mechanism Control board DATA IN DATA CLOCK Easy operation RS 232C mechanism PE UP Near end Reflect photo interrupter GND 5V 24V Roll paper External PWR supply...

Page 7: ...position 1 Paper width 2 Maximum diameter 3 Core diameter 4 Recommended papers Line thermal dot 432 dots 8 dots mm 203dpi 54mm 85mm sec ASCII full digits print 25 Excluding comm time 36 digits 48 dig...

Page 8: ...Operation 2 Storage 3 Location 58 0 1mm 80mm Max DC24V motor Feed switch self print paper feed firmware download 100 0 W x241 4 D x114 0 H mm without cable 1 2kg 50g without paper Vertical or horizont...

Page 9: ...paper 2 Mechanical life 400 million dot lines in MCBF 3 Rewind mechanism life 15 million lines line 4mm 4 Operation environment Temperature 5 45 Should have no condensation Humidity 10 90 RH 90 34 90...

Page 10: ...transmission not available Space Data transmission available Busy status marked will be z At reception buffer full z During hardware being reset after power is set on z During software being reset z A...

Page 11: ...1B 1A 2B 2A 3B 3A 4B 4A 5B 5A 6B 6A RESET RTS CTS RXD TXD GND GND GND 5V 5V 24V 24V Input Output Input Input Output Input Input Input Input RESET Input Printer busy Host busy Receives data Transmitted...

Page 12: ...ded within the length of 3m If a cable longer than 30cm between the power supply and printer make sure to use a condenser to stabilize the power level Use a cable in smaller number than AWG 24 2 The p...

Page 13: ...ensor The printer has a switch sensor at each mechanical section to monitor its operation and the operational status will be uploaded to the host No Name of sensor Status Monitor value 1 2 3 4 5 Near...

Page 14: ...n of printer status set the corresponding bit to transmission status on by command Except transmission error and paper near end printer removes the received data at print stop error 4 3 2 Recovery fro...

Page 15: ...ing The printer has a rewritable 8M flash ROM Read the following steps to rewrite Writing on line Refer to the section 5 3 Control commands Firmware download It is not necessary to set the power off a...

Page 16: ...rint start and end of HEX DUMP Printer starts printing HEX DUMP by setting DIP SW 7 on and power to the printer Printing ends with setting power off For returning to normal printing set power off and...

Page 17: ...n close lever is open It ends when the specified print pattern is printed The printer is in the off line mode during self printing If the specified print pattern is not printed turn the power switch o...

Page 18: ...feed 21 17 ESC R n Select international character 21 18 ESC c 5 n Feed switch enable disable 22 19 ESC d n Print and n line feed 22 20 ESC t n Select character code table 22 21 ESC v Send printer stat...

Page 19: ...et by horizontal tab set command The default of horizontal tab position is every 8th character 9th digit 17th digit 25th digit and 33rd digit in font A If the next tab position is not set this command...

Page 20: ...r resetting the characters to be downloaded Explanation Only LSB b0 is valid for n value LSB b0 has the following meanings b0 Function 0 download character reset 1 download character set Default value...

Page 21: ...17 Reference In the case of Font A P1 00 h P4 00 h P7 00 h P10 00 h P2 00 h P5 00 h P8 0F h P11 72 h P3 08 h P6 F8 h P9 08 h P12 00 h P1 24dots 12dots P2 P3 P4 P5 P6 P7 P34 P35 P36 MS LSB...

Page 22: ...18 Reference In the case of Font B P1 40 h P4 7F h P7 41 h P10 41 h P2 04 h P5 FC h P8 04 h P11 04 h P3 00 h P6 00 h P9 00 h P12 00 h P1 17dots P2 P4 P5 P7 P25 P26 MSB 9dots LSB MSB LSB P27 P6 P3...

Page 23: ...l dots to be printed in the bit image must be the same with quantity of bit image data that corresponds to the dots If quantity of bit image data is less than the total dots the same amount of followi...

Page 24: ...er initialization ESC Code 1B h 40 h Description Clears the data stored in the print buffer and resets each setting to default values It does not clear the data stored in the internal receive buffer F...

Page 25: ...the same on this printer Valid for all characters The default value of n is 00 h 16 Print and smallest pitch line feed ESC J n Code 1B h 4A h n 00 n FF h Description Prints the data in the print line...

Page 26: ...lanation n value has following meaning n Hex character code table 00 overseas character code table 01 Japan character code table The default value of n is 01 21 Printer status transmission ESC v Code...

Page 27: ...x description 00 reset 90 rotated character 01 set 90 rotated character 24 Absolute position set ESC n1 n2 Code 1B h 24 h n1 n2 00 n1 FF h 00 n2 01 h Description print start position is assigned by do...

Page 28: ...GS w n Code 1D h 77 h n 02 n 04 h Description Selects width of barcode The default value of n is 03 h 28 Barcode height select GS h n Code 1D h 68 h n 01 n FF h Description Assigns barcode height by...

Page 29: ...ned 3 not defined 4 not defined 5 not defined 6 not defined 7 not defined 1 When journal printer is not assigned by b0 1 all data from host PC will be removed 2 When receipt printer is assigned by b0...

Page 30: ...ermined in advance Three patterns can be registered from 0 2 Bit image print data for each pattern can be registered up to the maximum paper length of 150mm The exceeding data to the maximum value is...

Page 31: ...ng manner Preventive information return format Code n1 n Dn n1 is explained in the table 1 n is the value specified in the table1 Dn is preventive information and indicated in the table 2 Table 1 Valu...

Page 32: ...nable Optional Enable Enable Character code table Japan code Optional Japan code Japan code Assign clear inverted character Clear Optional Clear Clear Continues by line 90 clockwise rotation character...

Page 33: ...set Japan SP indicates space Printer operation cannot be guaranteed if the blank control code codes below 1F h is transmitted to printer The character in this code table is typical symbol so the actua...

Page 34: ...set U S A SP indicates space Printer operation cannot be guaranteed if the blank control code codes below 1F h is transmitted to printer The character in this code table is typical symbol so the actua...

Page 35: ...31 5 6 International character code table The character in this code table is typical symbol so the actual print of character may be different in some cases...

Page 36: ...TXD OUTPUT RS232C GND GND GND 5V Circuit power Vcc 5 5V Circuit power Vcc 5 24V Motor PW VM for head cutter 5 24V Motor PW VM for head cutter 5 below 6 above 6 below 50 above 50 below 120 above 120 b...

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