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Samsung 2 COLOR THERMAL PRINTER SRP-275, Service Manual

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Samsung 2 COLOR THERMAL PRINTER SRP-275 Service Manual Download Page 45

 

Rev. 2.00 

- 45 -

SRP-275

3-5-2 IEEE1284 Parallel Interface 

Bi-directional parallel interface : In accordance with the IEEE 1284 Nibble / Byte mode 

 
 
3-5-2(a) Forward Mode Specification (Compatibility mode) 

Data transmission from host computer to printer : Centronics compatible 

Item 

Description 

Remark 

Data transmission 

• 8 bit parallel 

 

Synchronization 

• External supplied nStrobe signals 

 

Handshaking 

• nACK and Busy signals 

 

Signal level 

• TTL compatible 

 

Connector • 

IEEE1284 

TYPE-B 

 

 
 
3-5-2(b) Reverse Mode Specification (Nibble / Byte mode) 

Data transmission from the printer to the host computer. The STATUS data transmission from the printer to 
the host computer is accomplished in the Nibble or Byte mode. This mode allows data transmission from the 
asynchronous printer under the control of the host computer. Data transmission in the Nibble mode are made 
via the existing control lines in units of bits(Nibble). In the Byte mode, data transmission are proceeded by 
making the 8-bits data lines bidirectional. Neither mode can operate at the same time as the compatibility 
mode, so switching is always required. 

 
 
3-5-2(c) Signal Specification (Compatibility/Nibble/Byte mode) 

Pin no. 

Source 

Compatibility mode 

Nibble mode 

Byte mode 

1 Host 

nStrobe 

HostClk 

HostClk 

2 

Host / Printer 

Data 0 (LSB) 

- 

Data 0 (LSB) 

3 

Host / Printer 

Data 1 

- 

Data 1 

4 

Host / Printer 

Data 2 

- 

Data 2 

5 

Host / Printer 

Data 3 

- 

Data 3 

6 

Host / Printer 

Data 4 

- 

Data 4 

7 

Host / Printer 

Data 5 

- 

Data 5 

8 

Host / Printer 

Data 6 

- 

Data 6 

9 

Host / Printer 

Data 7 (MSB) 

- 

Data 7 (MSB) 

10 Printer 

nAck 

PtrClk 

PtrClk 

11 

Printer 

Busy 

PtrBusy / Data3,7 

PtrBusy 

12 

Printer 

Perror 

AckDataReq / Data2,6 

AckDataReq 

13 

Printer 

Select 

Xflag / Data1,5 

Xflag 

14 Host 

nAutoFd 

HostBusy HostBusy 

15 - 

NC 

ND 

ND 

16 - 

GND 

GND 

GND 

17 - 

GND 

FG 

FG 

18 Printer 

Logic-H 

Logic-H 

Logic-H 

19~30 - 

GND 

GND 

GND 

31 Host 

nInit 

nInit 

nInit 

32 Printer 

nFault 

nDataAbail 

/ 

 

nDataAvail 

33 - 

NC 

ND 

ND 

34 Printer 

NC 

ND 

ND 

35 Printer 

NC 

ND 

ND 

36 Host 

nSelectln 

1284-Active 1284-Active 

Summary of Contents for 2 COLOR THERMAL PRINTER SRP-275

Page 1: ...Service Manual SRP 275 Impact Printer Rev 2 00 http www samsungminiprinters com ...

Page 2: ...SC POS mode 22 2 4 2 Memory Switch setting for Star mode 26 3 Product Specifications 32 3 1 Appearance 32 3 1 1 Printer Dimensions mm 32 3 1 2 AC Adapter Dimensions mm 32 3 1 3 Feature Locations 33 3 2 General Specifications 34 3 3 Reference information 35 3 3 1 Printer Mechanism Specification 35 3 3 2 Printing Specification 35 3 3 3 Character Specification 37 3 3 4 Paper Specification 38 3 3 5 Ri...

Page 3: ... 5 1 2 Ribbon feeder assy 78 5 1 3 Lever ribbon feeder assy 79 5 1 4 Lever tension assy 79 5 1 5 Carriage head assy 80 5 1 6 Head cover assy 80 5 1 7 Frame basket A assy 81 5 1 8 Frame basket C assy 82 5 1 9 Frame holder basket L assy 83 5 1 10 Frame holder basket L caulking assy 83 5 1 11 Frame holder basket R caulking assy 83 5 1 12 Frame housing cutter lower assy 84 5 1 13 Cutter lower assy 84 ...

Page 4: ...types 114 6 3 6 Adhesive application points 114 6 4 Tools lubricants and adhesives 115 6 4 1 List of tools 115 6 4 2 List of lubricants and adhesives 115 7 Troubleshooting 116 7 1 Troubleshooting flow chart 116 A POWER LED does not light 117 B PAPER LED is lit 118 C ERROR LED is blink 119 D ERROR LED is lit 120 E Self test is not normal 121 F Data from host is not printed normally 122 7 2 Troubles...

Page 5: ...ithout prior written permission or BIXOLON Co Ltd Overview of this Receipt Printer This System Impact Printer is a microprocessor based system using a 32 bit microprocessor This Service Manual provides the technical information for many individual component systems circuits and gives an analysis of the operations performed by the circuits If you need more technical information please contact our s...

Page 6: ...s in the AC outlet and repeat the test 5 Design Alteration Warning Never alter or add to the mechanical or electrical design of the Receipt Printer Unauthorized alterations might create a safety hazard Also any design changes or additions will void the manufacturer s warranty 6 Components parts and wiring that appear to have overheated or that are otherwise damaged should be replaced with parts th...

Page 7: ...nstrument chassis ground before connecting the positive lead always remove the instruments ground lead last 1 3 Precaution for Electrostatically Sensitive Devices ESDs 1 Some semiconductor solid state devices are easily damaged by static electricity Such components are called Electrostatically Sensitive Devices ESDs examples include integrated circuits and some field effect transistors The followi...

Page 8: ...le because the paper feeding pitch is selectable High general control utility based on the ESC POS TM standard The head can be driven due to the internal drawer interface Character font 7ⅹ9 9ⅹ9 is selectable The auto cutter uses a circular method with a high quality blade and a long life Approximately 1 000 000 cuts Paper near end Switch is standard A internal AC adaptor Please be sure to read the...

Page 9: ...or Interface connector Serial Parallel USB Ethernet Interface cable Drawer kick out cable 1 Turn off printer and the host ECR host computer 2 Plug the interface cable into the interface connector on the printer then fasten the screw on both sides of the connector 3 Plug the drawer kick out cable into the drawer kick out connector on the printer When removing the drawer kick out cable press on the ...

Page 10: ...tention to the placement of the ribbon in front of the Printer Head 5 During inserting the ribbon cassette turn the knob clockwise again to make sure the ribbon moves freely in the cassette 6 Close front cover of printer NOTES Malfunctions and other problems may arise if other than specified ribbon cassettes are used in the printer The Warranty may be void if other than specified ribbon cassettes ...

Page 11: ...row mark back 3 Remove the used paper roll core if there is one 4 Insert the paper roll as shown 5 Be sure to note the correct direction that the paper should come off the paper roll 6 Pull out small amount of paper as shown Then close the cover and tear off the extra paper by pulling it toward the front of the printer CAUTION Do not touch the auto cutter blade when you open rear cover ...

Page 12: ...ar cover 2 Remove the Frame paper control by loosing the two screws 3 6 3 Reattach the Frame paper control in your wanting position Insert and tighten two screws 3 6 to reattach 4 Close the rear cover 5 Change the Memory Switch setting for changing paper roll width See the instructions Setting the Memory Switches in 2 2 Operation ...

Page 13: ...attach the Bracket hanger to the Frame base then tighten four screws 2 Attach the Bracket mount to the wall firmly with the eight screws Be sure that the Bracket attached properly to match the direction of arrow as shown And the Bracket mount should be always fixed vertically 3 Insert the Bracket hanger of Set to the Bracket mount as shown ...

Page 14: ...rinter is out of paper or almost out of paper or the printer covers are open When this light blinking there is an error See ERROR LED blinking pattern 2 2 2 in Chapter 2 If you see this light blinking turn off the printer for a few seconds and then turn it back on If the light is still blinking call your supervisor or a service person PAPER OUT LED Red Color When this indicator light is on it mean...

Page 15: ...he rear cover is closed Auto cutter error Type C only The auto cutter does not work correctly Recovers by error recovery command Home position detection error This is Mechanical error The home position cannot be detected due to a paper jam Recovers by error recovery command NOTES 1 These conditions are selected by MSW8 5 8 8 When MSW8 5 mapping of the cover open status is off the error does not oc...

Page 16: ... 1B 25 01 1B 63 34 00 1B c 4 41 42 43 44 45 46 47 48 A B C D E F G H Online Hex Dump Completed A period is printed for each code that has no ASCII equivalent 5 When the printing finishes turn off the printer 2 2 3 The self Test Mode The self test let you know if your printer is operating properly It checks the printing quality ROM version DIP Switch settings memory switch settings and statistic da...

Page 17: ...GHIJKLMNOPQRST 0123456789 ABCDEFGHIJKLMNOPQRSTU 0123456789 ABCDEFGHIJKLMNOPQRSTUV 0123456789 ABCDEFGHIJKLMNOPQRSTUVW 123456789 ABCDEFGHIJKLMNOPQRSTUVWX 23456789 ABCDEFGHIJKLMNOPQRSTUVWXY 3456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ 456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ 56789 ABCDEFGHIJKLMNOPQRSTUVWXYZ 6789 ABCDEFGHIJKLMNOPQRSTUVWXYZ 789 ABCDEFGHIJKLMNOPQRSTUVWXYZ 89 ABCDEFGHIJKLMNOPQRSTUVWXYZ _ 9 ABCDEFGHIJKLMN...

Page 18: ...h Enable Disable OFF 1 8 Print column 42 35 40 33 OFF DIP Switch 2 RS232C serial interface model Switch Function ON OFF Default 2 1 Data receive error Ignore Print OFF 2 2 Reserved OFF 2 3 Hand shaking XON XOFF DTR DSR OFF 2 4 Word length 7 bits 8 bits OFF 2 5 Parity check Enable Disable OFF 2 6 Parity selection EVEN ODD OFF 2 7 OFF 2 8 Baud rate selection 2 Refer to the following table OFF DIP Sw...

Page 19: ...selection 3 Refer to the following table OFF 2 7 Near end switch Enable Disable OFF 2 8 Mechanism type Graphic Character OFF NOTES 1 Emulation Selection DSW 1 1 and 1 2 Emulation 1 1 1 2 EPSON OFF OFF STAR OFF ON CITIZEN ON OFF EPSON KP ON ON EPSON KP EPSON Kitchen Printer mode A alarm is generated by printer after auto cutting and in paper end error 2 International Character Selection No Country ...

Page 20: ...OFF 2 8 Baud rate selection 2 Refer to the following table OFF NOTES 1 Emulation Selection DSW 1 1 and 1 2 Emulation 1 1 1 2 EPSON OFF OFF STAR OFF ON CITIZEN ON OFF EPSON KP ON ON EPSON KP EPSON Kitchen Printer mode A alarm is generated by printer after auto cutting and in paper end error 2 Baud rate selection Transmission speed Transmission 2 7 2 8 2400 baud ON ON 4800 baud OFF ON 9600 baud OFF ...

Page 21: ...revent an electric short which can damage the printer 1 Make sure the printer is turned off 2 Remove the screw from the DIP Switch cover Then take off the DIP Switch cover which is shown in the illustration below 3 Set the switches using a pointed tool such as tweezers or a small 4 Replace the DIP Switch cover Then secure it with the screw NOTES The new settings take effect when you turn on the pr...

Page 22: ...ed for Chinese selection Fixed to Off 4 8 Code page selection 1 Refer to the following table NOTES Desired code page can be selected using Memory Switch 2 4 8 by setting as following 1 Code page selection MSW 2 8 MSW 2 7 MSW 2 6 MSW 2 5 MSW 2 4 Character Table 0 0 0 0 0 Page 0 PC437 U S A 0 0 0 0 1 Page 1 Katakana 0 0 0 1 0 Page 2 PC850 Multilingual 0 0 0 1 1 Page 3 PC860 Portuguese 0 0 1 0 0 Page...

Page 23: ...When Off is selected a bit of the automatic recoverable error in each status that is transmitted from the printer is changed every time the rear cover is open When On is selected a bit of the mechanical error in each status that is transmitted from the printer is changed every time the rear cover is open The setting of MSW 8 5 and 8 8 can be set by Memory Switch setup mode Customize value Function...

Page 24: ...aper FEED button 3 Press the FEED button twice while POWER ERROR and PAPER OUT LEDs are lit 4 Close the cover The printer prints the enabled settings of the Memory Switches and instructions 5 Follow the instructions to process the switch setup NOTES In the Memory Switch setup the power LED may be flashing Example of Memory Switch setup sheet Memory S W Setup You can choose desired item using YES o...

Page 25: ...S YES YES NO NO YES YES NO NO NO YES YES NO Resetting Buffer full release condition Current setting 640 bytes 69 5 mm 522 bytes NO Resetting Paper width Current setting 76 mm 57mm Resetting Cover open status Current setting Paper out Cover open Finishing Memory S W Setting Mode YES Memory S W Setting Completed NO YES YES YES NO YES YES NO NO YES YES YES NO NO NO YES YES Finishing Memory S W Settin...

Page 26: ...ossible for all Memory Switch settings to become offset to their initial default settings Consider the life of the non volatile memory and avoid over use of this command Function Class m N n1 n2 n3 n4 Data Definition Data Specification Definition N n1 n2 n3 n4 Data definition set specified bit Definition N n1 n2 n3 n4 Data definition clear specified bit Definition N n1 n2 n3 n4 Data Definition cle...

Page 27: ...untries Chinese character specifications DBCS Standard Specifications SBCS Memory Switch Number Ex factory Settings n1 n2 n3 n4 MSW 0 0000 MSW 1 0000 MSW 2 0000 MSW 3 0000 MSW 4 0000 MSW 5 0000 MSW 6 0000 MSW 7 0000 MSW 8 0000 Chinese character specifications DBCS For China Memory Switch Number Ex factory Settings n1 n2 n3 n4 MSW 0 0010 MSW 1 0000 MSW 2 0000 MSW 3 0000 MSW 4 0000 MSW 5 0000 MSW 6 ...

Page 28: ...inting ESC 4 Red white black inversion printing ESC 5 Red white black inversion printing cancelled When using ESC 5 to cancel adornments it returns to the previously set adornments Adornments such as underline upper line double tall expanded and enhancing are cancelled if there is no command to set them for example the ESC 1 specification for underlines This setting is enabled only for ANK charact...

Page 29: ... end switch Function 3 Refer to the following table NOTES 1 Print Region Width MSW 2 B Paper Width MSW 2 A Selection MSW 2 B MSW 2 A Printing Region Width Paper Width 0 0 400 half dots 76mm 0 1 300 half dots 57 5mm 1 0 385 half dots 76mm 1 1 297 half dots 57 5mm 2 Contextual Auto cut Function This function auto cuts paper when a paper feed command that feeds continuously over 7 6 inch Hosts that c...

Page 30: ...1 1 Page 3 PC860 Portuguese 0 0 1 0 0 Page 4 PC863 Canadian French 0 0 1 0 1 Page 5 PC865 Nordic 0 0 1 1 0 Page 16 WPC1252 Latin1 0 0 1 1 1 Page 17 PC866 Russian 0 1 0 0 0 Page 18 PC852 Latin2 0 1 0 0 1 Page 19 PC858 Euro 0 1 0 1 0 Page 21 PC862 Israel 0 1 0 1 1 Page 22 PC864 Arabic 0 1 1 0 0 Page 23 Thai character code 42 0 1 1 0 1 Page 24 WPC1253 Greek 0 1 1 1 0 Page 25 WPC1254 Turkish 0 1 1 1 1...

Page 31: ... RS a n command function Only Setting Auto status sent only once 2 1 0 Data reception error serial Prints Ignored Memory Switch 5 Bit Function 0 1 F 0 Reserved Memory Switch 6 Bit Function 0 1 F A 9 BUSY Condition Reception Buffer or Offline Reception Buffer Full 8 0 Memory Switch 7 Bit Function 0 1 F 0 Reserved ...

Page 32: ...duct Specifications 3 1 Appearance 3 1 1 Printer Dimensions mm SRP 275A Type SRP 275C Type Approx wt 2 4 kg Shipping Wt 3 9 kg Approx wt 2 5 kg Shipping Wt 4 0 kg 160 239 157 157 239 160 3 1 2 AC Adapter Dimensions mm 56 115 36 ...

Page 33: ...6 8 7 9a 9b 9c 10 10 10 1 Cover base 2 Cover middle 3a Cover front A 3b Cover front 4 Cover rear 5 Button open 6 Power switch 7 Frame cover DIP 8 DC power jack 9a Serial I F connector RS 232C 9b Parallel I F connenctor IEEE1284 9c USB I F connector 10 Drawer kick out connector RS 232 PARALLEL USB ...

Page 34: ...aud rate Stop bit and Parity are determined by DIP Switch position Parallel interface IEEE 1284 Mode Forward mod e Compatibility mode Reverse mode Nibble Byte mode Connector Self powered USB Transfer type BULK Speed 12Mbps Full speed Power Self Powered Printer Printing method 9pins serial impact Printing speed 5 1 lines sec Auto cutter Type Rotary Cutting method 1 point partial cutting Power consu...

Page 35: ...nt lines Head life Approx 300 million dots wire Weight Approx 1 1kg Excluding ribbon cassette auto cutter 3 3 2 Printing Specification Item Description Remark Printing method Serial impart dot Samsung Head wire configuration 9 pin serial type 1 Dot pitch 0 352mm 1 72 Dot wire diameter 0 3mm 0 01 Printing direction Bidirectional with logic seeking Line feed 4 233mm 1 6 default setting Paper feed me...

Page 36: ...al Character structure Character Set Character dimensions W H Dot spacing between characters Characters per line cpi Characters per inch cpi ANK 1 2 3 1mm 047 122 3 half dots 40 16 7 9 Graphics 1 7 3 1mm 070 122 0 40 16 ANK 1 6 3 1mm 063 122 3 half dots 33 13 3 9 9 Graphics 2 0 3 1mm 079 122 0 33 13 3 ANK 1 2 3 1mm 079 122 2 half dots 42 17 8 7 9 Graphics 1 6 3 1mm 063 122 0 42 17 8 ANK 1 6 3 1mm ...

Page 37: ...7ⅹ3 2 1 4ⅹ3 2 5 7ⅹ3 0 Column interval mm 2 13 1 59 3 19 Line interval 1 6 1 6 1 3 Character sets Alphanumeric characters 95 International characters 32 Extended graphics 128 x 20 pages Character structure 7 9 with 400 half dot positions per line 9 9 with 400 half dot positions per line NOTES 1 Character size 7 9 font example 2 41mm 0 095 0 014 0 352mm 0 159mm 0 006 0 123 3 12mm 1 25mm 0 049 1 59mm...

Page 38: ...00 positions 3 3 5 Ribbon Cassette Specification Item Description Remark Model RRC 275 B R Color Black Red Size 13 mm W ⅹ6 mm L Life 1 Black 1 5 million characters with continuous printing at 25 77 Red 750 000 characters with continuous printing at 25 77 NOTES 1 Ribbon life Ribbon life is based on the following conditions Character font 7 9 font with descenders Print pattern ASCII 96 character rol...

Page 39: ...H Non condensing Storage 10 90 RH Non condensing Shipping 5 90 RH Non condensing except paper and ribbon Vibration resistance When packed Frequency 5 to 55Hz Acceleration 5G Sweep 10 minutes half cycle Duration 1 hour Direction x y and z Impact resistance When packed Package SRP 275 standard package Height 60cm 23 62 Directions 1 corner 3edges and 6 surfaces When unpacked Height 5cm 1 97 Direction...

Page 40: ...ter Head Head 1 5 Printer Head Head 5 6 Printer Head Head 3 7 VCC_24V The Voltage for Driving Print Heads 8 VCC_24V The Voltage for Driving Print Heads 9 VCC_24V The Voltage for Driving Print Heads 10 Printer Head Head 2 11 Printer Head Head 9 12 Printer Head Head 4 13 Printer Head Head 8 14 Printer Head Head 6 15 VCC_5V Sensor and Motor Driving 16 H S Output Head home position check 17 Carriage M...

Page 41: ...ime Platen Gap 0 40 0 50mm Max frequency 1500Hz Performance Forms capability Original 2 copies Max operating temp 90 Temperature Max transient temp 110 For 5 minutes 25 duty 3 3 11 Printer Head Thermistor Specification Item Description Remark Type NTC F CHIP FF103J Electronic Characteristics Resistance R25 10 5Ω At 25 β Value 3950K 2 Temperature strage 30 125 Rx formula Exp 4 864010225 4344 575111...

Page 42: ...ent 0 4A mean 1 6A peak 3 3 15 Switch Sensor Specification Item Description Remark Paper end switch Micro switch MIC Paper near end switch Micro switch MIC Paper near end W switch Micro switch MIC Wall mount Cover open switch Micro switch MIC 3 4 SMPS Specifications 3 4 1 SMPS Switching Mode Power Supply Specification Item Description Remark Input voltage 100VAC 240VAC Input current Max 1 5A Line ...

Page 43: ...ntrol H W DTR DSR S W XON XOFF XON ASC code 11 XOFF ASC code 13 Signal level Logic 1 MARK 3V 15V Logic 0 SPACE 3V 15V Baud rate 19200 2400 4800 9600 bps Data word length 7 bit 8 bit Parity None Even Odd Connector DB25P female I F PBA NOTES The handshaking Flow control Data word length Baud rate Parity functions depend on the DIP Switch settings Refer to the Service manual 3 5 1 b RS 232C I F Cable...

Page 44: ...CE Logic 0 The printer is not busy The host transmits a data to the printer after confirming this signal When XON XOFF flow control is selected the host does not check this signal 3 5 1 e H W Flow Control When DTR DSR flow control is select before transmitting a data the Printer checks whether the host is BUSY or not If the host is BUSY the Printer does not transmit a data to the host If the host ...

Page 45: ... in units of bits Nibble In the Byte mode data transmission are proceeded by making the 8 bits data lines bidirectional Neither mode can operate at the same time as the compatibility mode so switching is always required 3 5 2 c Signal Specification Compatibility Nibble Byte mode Pin no Source Compatibility mode Nibble mode Byte mode 1 Host nStrobe HostClk HostClk 2 Host Printer Data 0 LSB Data 0 L...

Page 46: ...fing after 6 ones Transceiver Differential receive sensitivity 200 mV Differential common mode range 0 8 2 5 V Single end receiver threshold 0 8 2 0 V Speed 12 Mbps Power Self powered Cable connector Cable 5m 2m Connector A B type Other Support USB spec V1 1 3 5 3 b Signal Description Pin No Signal name Assignment Color Function Shell Shield Drain wire Frame ground 1 VBUS Red NC 2 D White Differen...

Page 47: ... Out Specifications 3 6 1 Drawer Cable 3 6 2 Cable Connection Pin No Description Direction 1 Signal GND 2 Drawer kick out driver signal 1 Output 3 Drawer Open Close signal Input 4 24V 5 Drawer kick out driver signal 2 Output 6 Signal GND ...

Page 48: ... Hardware 4 1 Wiring Diagram 4 1 1 Main board wiring diagram J6 J2 J11 J15 J1 J10 J8 J12 Interface connector Drawer Power jack DC Operation panel connector JTAG connector Power connector PCB connector sub Printer mechanism ...

Page 49: ...RP 275 4 1 2 Connector sub PCB wiring diagram J5 J7 J9 J3 J13 J4 J16 Rear cover open switch Black mark Sensor Auto cutter connector Paper near end switch Paper near end wall mount switch Paper end Sensor Main board ...

Page 50: ... Driver Clock circuit 40MHz Clock 10MHz RS 232 driver RS 232C connector IEEE1284 driver Parallel connector USB driver USB connector Sensor circuit Paper end home position sensor Head driver Printer head dot HF motor driver HF Motor Auto cutter Drive Auto cutter home position sensor Sensor circuit Paper near end Paper near end W Rear cover open PF Motor Driver PF Motor Address Data Address Data 5V ...

Page 51: ...Rev 2 00 51 SRP 275 4 3 PCB Layout Part List 4 3 1 Main Board Type of SRP 275A blue color Type of SRP 275C green color Top view ...

Page 52: ...Rev 2 00 52 SRP 275 Bottom view ...

Page 53: ...LL SIGNAL MMBT2222ALT1 NPN 4 Q2 Q3 Q4 Q5 Y 9 3 21 0503 001037 TR DARLINGTON 2SD2170 NPN 2W SC 62 1 Q1 Y 9 3 22 2011 000005 R ARRAY 220ohm 5 1 16W 8PIN 2 RA1 RA2 Y 9 3 23 K802 00034A R ARRAY 100ohm 5 1 16W 8PIN 9 RA3 RA4 RA5 RA6 RA7 RA8 RA9 RA10 RA11 Y 9 3 24 K802 00039A R ARRAY 330ohm 5 1 16W 8PIN 2 RA12 RA13 Y 9 3 25 2001 000015 R CARBON S 0 5ohm 5 1 2W AA TP 2 R60 R67 Y 9 3 26 K802 00066A R CARB...

Page 54: ...2 C56 C57 Y 9 3 54 2401 000056 C AL 470uF 20 35V GP 1 C51 Y 9 3 55 2401 000324 C AL 100uF 20 35V GP 1 C54 Y 9 3 56 2401 003775 C AL 470uF 20 16V WT 1 C55 Y 9 3 57 2702 001119 INDUCTOR RADIAL 220uH 15 13X18MM 1 L6 Y 9 3 58 2801 004219 CRYSTAL SMD 10MHZ 30PPM 28 AA 1 Y1 Y 9 3 59 3301 000317 CORE FERRITE BEAD CIM21J121 2012 6 L1 L2 L3 L4 L5 L7 Y 9 3 60 3407 000177 SWITCH DIP 5V 10mA SLIDE SPST 2 SW1 ...

Page 55: ...ZD1 Y 9 3 21 0501 000457 TR SMALL SIGNAL MMBT2222ALT1 NPN 4 Q2 Q3 Q4 Q5 Y 9 3 22 0503 001037 TR DARLINGTON 2SD2170 NPN 2W SC 62 1 Q1 Y 9 3 23 2011 000005 R ARRAY 220ohm 5 1 16W 8PIN 2 RA1 RA2 Y 9 3 24 K802 00034A R ARRAY 100ohm 5 1 16W 8PIN 9 RA3 RA4 RA5 RA6 RA7 RA8 RA9 RA10 RA11 Y 9 3 25 K802 00039A R ARRAY 330ohm 5 1 16W 8PIN 2 RA12 RA13 Y 9 3 26 2001 000015 R CARBON S 0 5ohm 5 1 2W AA TP 2 R60 ...

Page 56: ...2 C56 C57 Y 9 3 55 2401 000056 C AL 470uF 20 35V GP 1 C51 Y 9 3 56 2401 000324 C AL 100uF 20 35V GP 1 C54 Y 9 3 57 2401 003775 C AL 470uF 20 16V WT 1 C55 Y 9 3 58 2702 001119 INDUCTOR RADIAL 220uH 15 13X18MM 1 L6 Y 9 3 59 2801 004219 CRYSTAL SMD 10MHZ 30PPM 28 AA 1 Y1 Y 9 3 60 3301 000317 CORE FERRITE BEAD CIM21J121 2012 6 L1 L2 L3 L4 L5 L7 Y 9 3 61 3407 000177 SWITCH DIP 5V 10mA SLIDE SPST 2 SW1 ...

Page 57: ...P 1R 2mm STRAIG 2 J4 J7 Y 3 7 11 3708 001708 CONNECTOR FPC FFC PIC 16P 1MM STRAIGHT S 1 J16 Y Type of SRP 275C No Code No Description Specification Q ty Location Serviceable 3 7 AP02 00062C PCB CONNECTOR SUB C ASS Y ASS Y C TYPE 1 Y 3 7 1 K302 00019A PCB CONNECTOR SUB 4 LAYER FR 4 T1 6 1 N 3 7 2 2007 000090 R CHIP 10Kohm 5 1 16W 1608 1 R62 Y 3 7 3 2007 000539 R CHIP 200ohm 5 1 16W 1608 1 R63 Y 3 7...

Page 58: ...CB OPERATION PANEL 4 LAYER FR 4 1 6T 1 N 7 6 2 0601 001374 DIODE LED RED 3pi DIP 2 D24 D25 Y 7 6 3 0601 001376 DIODE LED GREED 3pi DIP 1 D26 Y 7 6 4 2007 000539 R CHIP 200ohm 5 1 16W 1608 3 R73 R74 R75 Y 7 6 5 2007 000094 R CHIP 22Kohm 5 1 16W 1608 1 R72 Y 7 6 6 3404 001205 SWITCH TACT 12VDC 50MA 260GF 6 0 1 SW3 Y 7 6 7 K602 00069A CONNECTOR HEADER BOX 6P 1R 2MM STRAI 1 J14 Y ...

Page 59: ...ohm 5 1 16W 1608 2 R2 R3 Y 1 18 10 2007 000090 R CHIP 10Kohm 5 1 16W 1608 1 R12 Y 1 18 11 2007 000539 R CHIP 200ohm 5 1 16W 1608 1 R13 Y 1 18 12 2007 000659 R CHIP 27ohm 1 1 16W 1608 1 R9 Y 1 18 13 K802 00045F R CHIP 100ohm 1 1 16W 1608 1 R10 Y 1 18 14 2203 005249 C CERAMIC CHIP 100nF 10 50V 1608 5 C1 C2 C3 C10 C11 Y 1 18 15 2203 000626 C CERAMIC CHIP 0 022NF 5 50V 1608 2 C4 C5 Y 1 18 16 2203 0004...

Page 60: ...4 2 4 2007 000070 R CHIP 0ohm 5 1608 TP 2 R3 R4 Y 14 2 5 2007 000090 R CHIP 10KOHM 5 1 16W DA T 2 R1 R2 Y 14 2 6 2203 002041 C CERAMIC CHIP 0 47nF 10 50V X7R T 4 C8 C9 C10 C11 Y 14 2 7 2203 005249 C CERAMIC CHIP 100nF 10 50V X7R TP 2 C1 C4 Y 14 2 8 2401 000205 C AL 100uF 20 16V GP TP 1 C3 Y 14 2 9 2401 001801 C AL 100nF 20 50V GP TP 4 C2 C5 C6 C7 Y 14 2 10 3301 000325 CORE FERRITE BEAD AB 3 2x2 5x...

Page 61: ...65 R CHIP 5 1Kohm 5 1 16W 1608 10 R19 R20 R21 R22 R23 R29 R30 R31 R32 R33 Y 14 2 8 2007 000839 R CHIP 39ohm 5 1 16W 1608 13 R11 R12 R13 R14 R15 R16 R17 R18 R24 R25 R26 R27 R28 Y 14 2 9 2203 000236 C CERAMIC CHIP 0 1nF 5 50V C0G 1608 3 C19 C20 C21 Y 14 2 10 2203 000440 C CERAMIC CHIP 1nF 10 50V X7R 1608 9 C3 C4 C5 C6 C7 C8 C9 C10 C12 Y 14 2 11 2203 000626 C CERAMIC CHIP 0 022NF 5 50V 1608 5 C14 C15...

Page 62: ...22pF 10 50V 1608 9 C3 C4 C5 C6 C7 C10 C11 C16 C17 Y 14 2 8 2203 005194 C CERAMIC CHIP 220pF 10 50V X7R TP 2 C18 C19 Y 14 2 9 2203 005249 C CERAMIC CHIP 100nF 10 50V 1608 2 C1 C9 Y 14 2 10 K006 00007A C CERAMIC CHIP 1000pF 10 50V 1608 1 C8 Y 14 2 11 2404 000128 C TANTAL CHIP 10uF 16V 10 1W 6032 1 C15 Y 14 2 12 2404 000190 C TANTAL CHIP 22uF 16V 10 1W 6032 1 C2 Y 14 2 13 K006 00008A C TANTAL CHIP 10...

Page 63: ...Rev 2 00 63 SRP 275 4 4 8 Ethernet Interface IFC E TYPE ...

Page 64: ... 16W 50V 1608 11 R1 R2 R3 R4 R22 R23 R24 R25 R26 R27 R31 Y 14 2 18 2007 000090 R CHIP 10Kohm 5 1 16W 50V 1608 5 R5 R6 R8 R9 R38 Y 14 2 19 2007 000239 R CHIP 1 5Kohm 5 1 16W 50V 1608 1 R21 Y 14 2 20 2007 000539 R CHIP 200ohm 5 1 16W 50V 1608 4 R7 R30 R32 R33 Y 14 2 21 K808 00060A R CHIP 51ohm 5 1 16W 50V 1608 4 R34 R35 R36 R37 Y 14 2 22 K808 00061F R CHIP 5 9Kohm 1 1 16W 50V 1608 1 R28 Y 14 2 23 22...

Page 65: ...Rev 2 00 65 SRP 275 4 5 Schematic Diagram 4 5 1 Main Circuit Diagram ...

Page 66: ...Rev 2 00 66 SRP 275 ...

Page 67: ...Rev 2 00 67 SRP 275 ...

Page 68: ...Rev 2 00 68 SRP 275 ...

Page 69: ...Rev 2 00 69 SRP 275 ...

Page 70: ...Rev 2 00 70 SRP 275 ...

Page 71: ...Rev 2 00 71 SRP 275 ...

Page 72: ...Rev 2 00 72 SRP 275 ...

Page 73: ...Rev 2 00 73 SRP 275 ...

Page 74: ...Rev 2 00 74 SRP 275 4 5 2 Head circuit diagram ...

Page 75: ...Rev 2 00 75 SRP 275 4 5 3 Serial Interface Diagram RS 232C ...

Page 76: ...Rev 2 00 76 SRP 275 4 5 4 Parallel Interface Diagram IEEE 1284 ...

Page 77: ...Rev 2 00 77 SRP 275 4 5 5 USB Interface Diagram Universal Serial Bus ...

Page 78: ...t gear pulley Shaft reduction A C 2ea Shaft ribbon frame L Shaft ribbon frame R Shaft ribbon feed Shaft lever_CC 1 Caulk Shaft R F idle Shaft gear pulley two Shaft reduction A C and Shaft ribbon feed on Frame main 2 Caulk Shaft ribbon frame L and Shaft lever_CC on Frame main 3 Caulk Shaft ribbon frame R on Frame main Shaft lever_CC Frame main Shaft R F idle Shaft gear pulley Shaft reduction A C 2E...

Page 79: ...duction B and then grease Wave washer with HG 31S 3 Insert Gear re_B to Shaft reduction B and then fasten Ring e hole ø2 5 to Shaft reduction B 5 1 2 3 4 5 1 4 Lever tension assy Part name Assembly procedure Lever tension belt Shaft pulley Pulley Washer plain ø2 6 1 Caulk Shaft pulley on Lever tension belt and then grease Shaft pulley with HG 31S 2 Insert Pulley to Shaft pulley and then fasten Was...

Page 80: ...iage WI 1 2 2 5 1 6 Head cover assy Part name Assembly procedure Cover head Label hot Screw manual M4 0 Ring e hole ø3 0 1 Paste Label hot on the left bottom side of Cover head 2 Insert Screw manual M4 0 into the right side hole of Cover head 3 Assemble Ring e hole ø3 0 onto the starting point of a spiral during adhering closely to Cover head 1 2 3 4 ...

Page 81: ...a 1 Tighten Frame holder basket L ass y to Frame basket with two Screw taptite M3 6 2 Tighten Harness Jumper cable and Frame holder basket R ass y to Frame basket with two Screw taptite M3 6 3 Insert two Roller holder to Shaft roller holder and then assemble two Spring roller holder to Shaft roller holder Frame holder basket L ass y and Frame holder basket R ass y 4 Insert Platen paper guide in Fr...

Page 82: ...a 1 Tighten Frame holder basket L ass y to Frame basket with two Screw taptite M3 6 2 Tighten Harness Jumper cable and Frame holder basket R ass y to Frame basket with two Screw taptite M3 6 3 Insert two Roller holder to Shaft roller holder and then assemble two Spring roller holder to Shaft roller holder Frame holder basket L ass y and Frame holder basket R ass y 4 Insert Platen paper guide in Fr...

Page 83: ... holder basket L caulking ass y and then assemble Washer plain ø2 6 Check point Check Gear reduction to rotate smoothly 1 3 2 5 1 10 Frame holder basket L caulking assy Part name Assembly procedure Frame holder basket L Shaft locking Shaft reduction 1 Caulk Shaft locking and Shaft reduction on Frame holder basket L 1 2 3 5 1 11 Frame holder basket R caulking assy Part name Assembly procedure Frame...

Page 84: ... Cutter lower assy Part name Assembly procedure Cutter lower Frame housing cutter upper Spring cutter lower 2ea Frame housing cutter lower Screw taptite M3 4 2ea 1 Insert Cutter lower in Frame housing cutter upper and then insert two Spring cutter lower between Cutter lower and Frame housing cutter upper 2 Tighten Frame housing cutter upper to Frame housing cutter lower with two Screw taptite M3 4...

Page 85: ...and Frame pivot locking R 5 Insert Frame clamshell locking between Frame pivot locking L and Frame pivot locking R and then insert Shaft clamshell locking Spring locking L and Spring locking R And assemble two Ring e hole ø2 5 to Shaft clamshell locking 6 Attach Holder platen ass y to Frame rotator and then insert Shaft housing platen into the hole of Frame rotator And assemble two 21 Ring e hole ...

Page 86: ...sembly procedure Holder platen Platen Rubber platen 3ea Bar holder platen Screw taptite M3 10 2ea 1 Insert three Rubber platen in Platen 2 Attach Platen to Holder platen 3 Tighten Bar holder platen to Holder platen with two Screw taptite M3 10 1 2 3 3 3 4 4 4 ...

Page 87: ... sticker and Plate insulation on Frame main caulking ass y 2 Grease six shafts on Frame main caulking ass y with HG 31S 3 Insert Lever change color into Shaft lever_CC and then assemble Washer plain ø2 6 4 Insert Assy gear pulley and Gear RE_B to the Shaft gear pulley and Shaft R F idle and then assemble each of Washer plain ø2 6 5 Insert Spring solenoid between Solenoid and Lever change color and...

Page 88: ... three shafts of Frame main 2 Insert Cover HF gear train to two shafts 3 Insert Lever ribbon feeder ass y to two shafts and then assemble two Washer plain ø2 6 4 Insert FPC head FPC 30pin and the 2pin connector of Solenoid to PCB head ass y and then tighten two Screw taptite M3 4 5 Assemble Spring lever tension between Lever tension ass y and the hook of Frame main 6 Insert Carriage head ass y to ...

Page 89: ...rt Shaft head_guide into two holes of Frame main 3 Insert two Lever ad to the end of Shaft head_guide and then rotate two Lever ad downward And oil Shaft head_guide with G948P 4 Insert Shaft head carriage in two holes the Frame main and then assemble Ring e hole ø3 0 to Shaft Head carriage 5 Insert FPC head in Printer head and then tighten Printer head on Carriage head ass y with two Screw tapping...

Page 90: ... connector of PCB head ass y 2 Attach Spring ribbon to the right side of Frame ribbon and then insert Frame ribbon between Shaft ribbon frame L and Shaft ribbon frame R And fix Spring ribbon to the hook of Frame main 3 Assemble two Ring e hole ø3 0 to two shafts 4 Tighten Motor step HF motor on the bottom of Frame main with two Screw taptite M3 4 And insert the 6pin connector of Motor step HF moto...

Page 91: ...r cover Screw taptite M3 5 1 Attach Frame rotator ass y on Frame main and then insert two Shaft pivot and two Spring rear open And assemble two Ring e hole ø5 0 to two Shaft pivot 2 Tighten Frame rear cover on Frame rotator ass y with Screw taptite M3 5 3 Grease two Shaft locking the hooks of Frame clamshell locking and the groove of Frame pivot locking L R 1 2 2 3 3 4 4 5 6 ...

Page 92: ...ass y Screw taptite M3 5 1 Attach Frame rotator ass y on Frame main and then insert two Shaft pivot and two Spring rear open And assemble two Ring e hole ø5 0 to two Shaft pivot 2 Tighten Auto cutter ass y on Frame rotator ass y with Screw taptite M3 5 3 Grease two Shaft locking the hooks of Frame clamshell locking and the groove of Frame pivot locking L R 1 2 2 3 3 4 4 6 5 ...

Page 93: ...AC timing belt Power AC timing belt 1 Attach Holder AC timing belt to Power AC timing belt and then insert Plate AC belt to the hole of Holder AC timing belt 3 2 1 5 3 2 AC upper frame caulking assy Part name Assembly procedure Frame AC upper Shaft AC worm pulley 3ea 1 Caulk three Shaft AC worm pulley on Frame AC upper 2 2 2 1 ...

Page 94: ...er ass y in Guide AC upper cutter and then insert Shaft AC upper cutter into Guide AC upper cutter And assemble Washer plain ø2 6 to Shaft AC upper cutter 2 Insert two Felt AC oil in Guide AC upper cutter and then assemble two Cover AC plate felt 2 4 6 5 6 5 3 1 5 3 4 AC upper cutter assy Part name Assembly procedure Cutter 16 4 Gear AC upper cutter Fastener ring 1 Attach Cutter 16 4 on Gear AC up...

Page 95: ... y bottom side Check point After soldering check the frozen lead and short 1 2 5 3 6 AC motor sub assy Part name Assembly procedure Motor DC Gear AC worm 1 Insert Gear AC worm to Motor DC 1 2 5 3 7 PCB AC assy Part name Assembly procedure PCB AC Photo interrupter 1 Attach Photo interrupter to fit the hole of PCB AC and then solder the land on PCB AC bottom side Check point After soldering check th...

Page 96: ...o Gear AC gear pulley to two Shaft AC worm pulley of AC upper frame caulking ass y 2 Insert Gear AC worm wheel to Shaft AC worm pulley of AC upper frame caulking ass y 3 Assemble AC upper cutter guide ass y to AC timing belt ass y and then insert two Shaft AC shaft guide to AC upper cutter guide ass y and four holes AC upper frame caulking ass y And assemble two Ring e hole ø3 0 4 Tighten AC motor...

Page 97: ...ss y Screw taptite M3 6 4ea FPC 16pin 1 Attach Frame paper control to Cover base 2 Insert three PMO roller paper end to Cover base 3 Tighten Switch paper near end ass y to Cover base with two Screw tapping M2 5 4 Tighten PCB connector sub ass y to Cover base with two Screw taptite M3 6 5 Insert FPC 16pin in PCB connector sub ass y 6 Insert the connector of Switch paper near end ass y in connector ...

Page 98: ...m side and attach Harness Switch paper near end on the land Check point After soldering check the frozen lead and short 1 2 3 5 4 3 Switch paper end assy Part name Assembly procedure PCB Switch paper end Switch micro 2 9gf Harness Switch paper end 1 Insert Switch micro 2 9gf to PCB Switch paper end 2 Solder the land on PCB Switch paper end bottom side and attach Harness Switch paper end on the lan...

Page 99: ...1 Insert PMO roller paper end to Cover middle 2 Paste Label logo SAMSUNG on the front side of Cover middle 3 Paste Label logo BIXOLON on the back side of Cover middle 4 Tighten Operation panel ass y to Cover middle with two Screw taptite M3 6 5 Insert Harness Operation panel in Operation panel ass y 6 Tighten Switch cover open ass y to Cover middle with two Screw tapping M2 5 7 Insert Switch paper...

Page 100: ...witch cover open on the land Check point After soldering check the frozen lead and short 1 2 3 5 4 6 Switch paper near end W assy Part name Assembly procedure PCB switch paper near end W Switch micro 5 9gf Harness switch paper near end 1 Insert Switch micro 5 9gf to PCB Switch paper near end W 2 Solder the land on PCB Switch paper near end W bottom side and attach Harness Switch paper near end W o...

Page 101: ... 7 Bracket PCB assy Part name Assembly procedure Bracket PCB PCB main ass y Screw taptite M3 6 3ea Foot rubb er 4ea 1 Tighten PCB main ass y to Bracket PCB with three Screw taptite M3 6 2 Paste four Foot rubber on Bracket PCB ...

Page 102: ...ss y Nut hexagon 2ea 1 Tighten Serial PCB ass y on I F bracket serial with two Nut hexagon 3 3 1 2 5 4 9 cover front A assy Part name Assembly procedure Cover front A Label warning cover 1 Paste the Label warning cover on the inside Cover front A The SRP 275C type uses Cover front instead of Cover front A 1 2 ...

Page 103: ...ass y Rubber damper Cover base ass y Scr ew taptite M3 12 4ea 1 Insert four Rubber damper to a half circle groove of SMP715A printer mechanism ass y 2 Tighten SMP715A printer mechanism ass y on the boss of Cover base ass y with four Screw taptite M3 12 3 Insert Harness jumper cable to a square hole of Cover base 3 2 2 2 2 1 4 4 4 4 Harness jumper cable ...

Page 104: ...Rev 2 00 104 SRP 275 Part name Assembly procedure Switch paper end ass y Screw tapping M2 5 2ea 4 Tighten Switch paper end ass y on the bottom of Frame paper with two Screw tapping M2 5 5 6 6 ...

Page 105: ... base Screw taptite M3 12 4ea 1 Insert four Rubber damper to a half circle groove of SMP715C printer mechanism ass y 2 Tighten SMP715C printer mechanism ass y on the boss of Cover base with four Screw taptite M3 12 3 Insert Harness AC and Harness jumper cable to a square hole of Cover base 2 3 1 2 2 2 4 4 4 4 Harness jumper cable Harness AC ...

Page 106: ...cedure Switch paper end ass y Screw tapping M2 5 2ea 4 Insert the 5pin connector of Harness AC in the connector of PCB connector sub ass y 5 Tighten Switch paper end ass y on the bottom of Frame paper with two Screw tapping M2 5 5 6 6 Harness AC ...

Page 107: ... middle Screw taptite M3 10 4ea 1 Tighten Cover middle on Cover base with four Screw taptite M3 10 2 Insert Harness switch rear cover open and Harness switch paper near end W to a square hole of Cover base Harness Switch rear cover open Harness Switch paper near end W 1 2 2 2 2 ...

Page 108: ...bly procedure 3 Insert the 2pin connector of Switch rear cover open ass y and the 2pin connector of Switch paper near end W ass y in the connectors of PCB connector sub ass y Harness Switch rear cover open Harness Switch paper near end W ...

Page 109: ...of Bracket PCB ass y with Screw taptite M3 6 2 Insert FPC connector sub 16pin to Bracket PCB ass y and then tighten Bracket PCB ass y to Cover base with three Screw taptite M3 10 3 Insert Harness power into the right front side hole of Cover base 4 Insert the 2pin connector of Harness power the 6pin connector of Harness operation panel and the 2pin connector of Harness power in three connectors PC...

Page 110: ...ame base Frame cover DIP Serial interface ass y Sub assembly E 1 Tighten Frame base on Bracket PCB ass y with four Screw taptite M3 6 2 Tighten Frame cover DIP on Frame base with Screw taptite M3 6 3 Tighten Serial interface ass y to PCB main ass y with two Screw taptite M3 6 ...

Page 111: ...bel rating 4 Insert Button open to Cover rear and then tighten Cover rear on Frame rotator ass y with two Screw taptite M3 6 5 Assemble Cover front A ass y to Cover base The SRP 275C type uses Cover front ass y instead of Cover front A ass y 6 Paste Label logo BIXOLON on the center of Cover front A ass y 7 Paste Label rating on Frame base 3 4 5 5 6 7 8 ...

Page 112: ...Gap 0 40 0 50 Printer head Frame main Platen Holder platen 3 Move the Printer head then check if the proper gap from R side center has been achieved 4 If head gap is not proper adjust head gap by rotating AD lever R Appropriate gap 0 40 0 50mm In order to make the gap narrow wide turn AD lever to mark If gap is not correct repeat once more 6 1 2 Replacement of Printer head Follow below steps for r...

Page 113: ...ned in optimum condition If any unsatisfactory points are discovered They should be replaced 1 Check that the Ribbon Cassette is securely installed properly 2 Check that the Ribbon Cassette in use conforms to the SPECIFICATIONS RRC 275 or compatible 3 Check the ribbon for bending twisting or damage Replace the Ribbon Cassette if it is affecting print quality 4 Check that the paper in use conforms ...

Page 114: ...uently the oils to be used with this printer are specified by us on the basis of the result of the thorough analyses of technical data for many types of oils and various experiments 2 types of oils to be used with this printer are HG 31S G 948P 6 3 3 Lubrication points No Lubrication point Oil type 1 2 3 4 5 6 7 Outer periphery of shaft hold roller Contact point between cam of head carriage and ri...

Page 115: ...lity 1 2 3 4 5 6 7 8 9 10 11 Brush 1 Brush 2 Cleaning brush Screwdriver No 2 Tweezers Round pliers Diagonal cutting nipper Electric Soldering iron Thickness gauge ET holder 2 5 ET holder 3 6 4 2 List of lubricants and adhesives Item Oil Grease Adhesive Description CALTEX REGAL R D 68 948P HG 31S Screwlock ...

Page 116: ...toms are known 7 1 Troubleshooting flow chart If the source of a problem is not clear use the flowchart below to find and replace a defective component Normally servicing should be performed by component replacement Repairs of the PCBs and other components should be performed only by technicians Start Power On Is POWER LED lit Is PAPER OUT LED lit Is ERROR LED blink Is ERROR LED lit Execute self t...

Page 117: ...wer cord properly OK END YES Does AC adaptor have proper output voltage rating approx 24V YES NO Replace AC adaptor NO Has fuse FU1 on main PCB blown YES NO OK END YES Is POWER LED continuity normal Replace fuse FU1 YES OK END YES NO NO Replace PCB main ass y YES Replace Operation panel ass y OK END YES NO NO END NO ...

Page 118: ...s paper roll in paper near end condition or not inserted Replace or insert paper roll Is paper end switch paper near end switch continuity normal YES NO YES NO OK NO END YES Replace Switch paper near end ass y or Switch paper end ass y NO OK END YES YES NO Replace PCB main ass y END ...

Page 119: ...PATTERNA PATTERNB Blinking patternA ReplacePCB ACass y homepositionsensor OK END Blinking patternB YES NO NO YES ReplacePCB ACass y homepositionsensor OK END YES YES ReplacePCB mainass y NO NO OK END Replaceprintermechanismass y SMP715 END NO YES ...

Page 120: ...SRP 275 D ERROR LED is lit D Turn power off then once again OK END YES Is rear cover closed properly Replace Switch rear cover open ass y Close rear cover properly Replace PCB main ass y END OK NO YES NO END NO YES ...

Page 121: ...in within SPEC 1 Replace PCB main ass y Replace printer mechanism ass y END END YES NO YES OK NO YES Printing is carried out but print quality is deficient or paper feeding is not normal Replace printer mechanism ass y OK Replace PCB main ass y END END NO YES NO Check point Rating terminal of C51 24V terminal of C55 5V 1 ...

Page 122: ...lues at host and printer YES NO Does interface cable match specifications Make settings identical OK END NO YES YES Replace with a proper cable OK END OK YES NO NO END Is the interface wire broken NO Replace interface PCB ass y NO YES YES Replace the interface cable OK END Replace printer mechanism ass y NO YES YES NO OK END Check the host NO YES ...

Page 123: ...m that can be verified Problem Causes This is a listing of one or several possible causes that should be examined Level Level A The problem can be corrected by persons who are familiar with the printer and have general knowledge but special technical skills are not required Level B The problem requires thorough knowledge and familiarity with the printer as well as technical skills and experience C...

Page 124: ...Carriage head ass y passes the sensor Replace PCB head ass y A Check gears for wear and damage Replace any damaged gears Wear damage or contamination of carriage drive gears A Check for dirt deposits or other foreign matter Remove any dirt deposits or foreign matter Ribbon cassette s abnormal operation B Check for rotated load of ribbon cassette knob Replace Ribbon cassette Carriage head ass y fir...

Page 125: ...he conductivity of lead of FPC head Replace FPC head Positional relationship between the head and the platen B Check if the gap between the platen and the pin of head is correct value 0 40 0 05mm If incorrect performed repair with reference FPC 30pin is failure or disconnected between PCB head ass y and PCB main ass y B Check the connected condition of FPC and FPC failure Make sure the connection ...

Page 126: ...er dust around switch A Check switch function or dust around switch Replace Switch ass y or remove dust The ratchet of Ribbon cassette is damaged or worn out B Check whether the ratchet of Ribbon cassette is damaged or worn out Replace it if damaged or worn out Ribbon feed mechanism does not feed Wear or damage of the teeth of the gears B Check Ribbon feeder ass y and Gear RE_A B C for wear of dam...

Page 127: ...een Cutter and Cutter lower B Check for intersection Reassemble Auto cutter ass y or Cutter lower ass y Defective soldering between Motor DC and connector wire B Check soldering condition Resolder as required Motor DC does not rotate Defective connection between connector of Auto cutter ass y and PCB AC ass y B Check for connection of connector Make sure connection of connector ...

Page 128: ...power is conveyed to the belt drive pulley then the belt Next the Carriage head ass y which is fixed to the belt moved in the direction of arrow B When the HF motor pinion is rotated in the direction of arrow A the Carriage head ass y is moved in the direction of arrow A Belt round Pulley Head Carriage head ass y Ass y gear pulley Pinion HF motor A B A B A B HEAD_PA HEAD_An HEAD_Bn HEAD_B HEAD_PBn...

Page 129: ...by controlling the Motor step Paper feeding is made as follows As Motor step set turning by electric signal Shaft rubber roller comes into turning passing Gear reduction For Shaft roller holder is pressed to Roller holder by Spring roller holder paper is feed by friction Pitch is 1 144 LF_B LF_A LF_An LF_Bn VCC_5V VCC_24V VCC_24V VCC_5V VCC_5V C40 22p 1608 C48 22p 1608 R61 510 1 1608 R64 10K 1 160...

Page 130: ..._B Pinion HF motor Lever ribbon feeder ass y Gear RE_A Gear RE_B Gear RE_C Ribbon feeder ass y Shaft reduction A C A B C D F G E e a 8 1 4 Color changing system Color change system consists of Ribbon feeding system in section 8 1 3 and Ribbon shifting system in section 8 1 4 1 8 1 4 1 Ribbon shifting system Shifting system of Ribbon consisted of Carriage head ass y Frame ribbon Lever change color ...

Page 131: ...he actuating plate is pulled in the direction of arrow A This action pushed the wire toward the Platen When the wire strikes the ink ribbon and paper against the Platen 1 a single dot is printed When the energizing of the drive coil is completed the wire and actuating plate are returned to the standby position by the wire return spring and actuating plate spring NOTES 1 The Platen is the portion o...

Page 132: ...per near end W Switch cover rear open Cover base Cover middle Auto cutter Home position sensor Home position sensor 8 3 1 Home position detection mechanism The home position detection mechanism consists of the detection plate at the left side of the Carriage head ass y and the home position sensor at the left side of the Frame main It determines the home position identifies the head carriage posit...

Page 133: ...end detection lever is always pressed against the paper roll by a spring inside the micro switch Therefore when there is a large amount of paper remaining on the roll the paper near end detection lever is pressed against the paper roll as figure This keeps the micro switch turned on When the almost out of paper on the roll the tip of the paper near end detection lever is no longer pressed against ...

Page 134: ...ight of Cover middle This keeps the micro switch turned on When the almost out of Cover rear the tip of the rear cover detection lever no longer presses against the Cover rear and moves in the direction indicated by the arrow C This turns the micro switch off and generates a signal indicating that the Cover rear is open 8 3 5 Auto cutter home position detection mechanism The Auto cutter home posit...

Page 135: ...ordance with rotation of the Gear AC gear pulley Belt drive pulley belt moves in direction of arrow B The AC upper cutter guide ass y is connected on the belt so that it moves in direction of arrow C When the circular cutter moves on the lower cutter the paper is cut A B C Gear AC worm Gear AC worm wheel Gear AC gear pulley Motor DC Power AC timing belt Home position sensor Home position Circular ...

Page 136: ...m to be solved easily When a paper jam happens or a paper is out push Button open then the force will be transferred to Arm open The protrusion portion of Arm open will push up the Frame clamshell locking of Rotator ass y After removing a paper jam or replacing a paper roll close the Cover rear Button open Frame clamshell locking Arm open ...

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