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Casio UP-250, Technical Manual

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Principles of Operation

Power Supply Circuitry

The power supply circuit is compact, uses a switching method, and is attached to the main 
circuit board. The following sections describe printer power supply circuitry. The following 
table shows power supply voltages and their usages.

Filter circuit 

The +24 V (24 to 30 V) DC power is input from CN1 through the filter circuit, which reduces 
outside noise and keeps internally generated noise from flowing through the +24 V power line. 

+24 VDC circuit

The +24 V power from the filter circuit is input to printer power and the +5 V regulator circuit. 
Printer power and drawer drive power are the con24 ± 1 V that is regulated by series of 
regulators (U2 to U4).

+5 VDC control circuit

The +5 V regulator circuit switches the +24 V power input and converts it to +5 V. The switching 
regulator IC (U1) switches the +24 V input, smooths it via C1, and o5 V. Power for the 
RS-232 is generated by the internal charge-up circuit on the RS-232 interface driver.

Power supply voltage usage

Voltage Usage

+5 V

Logic circuit

Interface circuit board

Operation panel circuit

Various detector circuits

+24 V

Printer:
   Carriage motor

Paper feed motor

   Print head

Auto-cutter

Drawer kick-out drive

Figure 2-19  Power supply circuit diagram

— 41 —

Summary of Contents for UP-250

Page 1: ...EXTERNAL PRINTER FEB 2000 MODEL UP 250 without price TECHNICAL MANUAL ...

Page 2: ...hich the document relates unless you obtain the prior written consent of CASIO for some other use 5 CASIO warrants that it has the right to disclose the confidential information CASIO MAKES NO OTHER WARRANTIES CONCERNING THE CONFIDENTIAL INFORMATION OR ANY OTHER INFORMATION IN THE DOCUMENT INCLUDING WITHOUT LIMITATION ANY WARRANTY OF TITLE OR NON INFRINGEMENT CASIO has no liability for loss or dam...

Page 3: ...ence at his or her own expense WARNING The connection of a non shielded printer interface cable to this printer will invalidate the FCC Verification of this device and may cause interference levels which exceed the limits established by the FCC for this equipment You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority...

Page 4: ...nce with any user defined format o Command protocol based on ESC POS a widely used standard o Built in drawer kick out interface provides capability to drive two drawers o Selectable character fonts 7 x 9 9 x 9 o Semi automatic paper loading capability o AC adapter included provides compact power supply o Compact and light in weight o Automatic Status Back ASB function to automatically send printe...

Page 5: ...ge Motor 9 Print Head Unit 9 Home Position Sensor 9 Paper End Detector 10 Paper Roll Near end Detector Optional 10 Connectors 10 Interface Connector 10 Power Supply Connector 11 Drawer Kick Out Connector 11 Interface 13 RS 232 Serial Interface 13 RS 485 Serial Interface option 16 IEEE 1284 Parallel Interface 16 Buttons and Switches 19 Power Switch 19 Panel Button 19 DIP Switches 20 Panel LEDs 22 S...

Page 6: ...d 36 Releasing from Red to Black 36 Electrical Circuitry Operating Principles 37 Hardware Configuration 37 Principles of Operation 41 Power Supply Circuitry 41 Control Circuitry 42 CPU 43 Various detector circuits 46 Host interface circuit 47 Drawer kick out drive circuit 47 DIP switch read circuit 48 Printer Mechanism Driver Circuits 50 Print head driver circuit 50 Paper feed motor driver circuit...

Page 7: ...ain circuit board assembly 92 Sub assembly A 94 Paper feed frame unit assembly 94 Main Assembly 1 98 Ribbon switch lever ribbon release spring ribbon release lever ribbon intermediate gear ribbon transmission gear ribbon take up assembly and ribbon drive plate assembly 98 Main Assembly 2 100 Tension plate assembly 100 Main Assembly 3 100 Paper feed frame assembly 100 Main Assembly 4 101 Carriage m...

Page 8: ...assembly 116 Main Assembly 3 Case Unit 118 Main circuit board assembly 118 Main Assembly 4 Case Unit 119 Inserting the cables 119 Main Assembly 5 Case Unit 120 Lower case assembly 120 Main Assembly 6 Case Unit 121 Manual cutter assembly and auto cutter fixing plate 121 Main Assembly 7 Case Unit 123 Auto cutter assembly 123 Main Assembly 8 Case Unit 126 Paper roll receive rollers upper case guide r...

Page 9: ...agram 144 RS 232 Serial Interface Circuit Board Diagram 145 IEEE 1284 Parallel Interface Circuit Board Diagram 146 RS 485 Serial Interface Circuit Board Diagram 147 Printer Mechanism Unit Overall Exploded Diagram 148 Case Unit Overall Exploded Diagram 149 Printer Mechanism Unit Lubrication Points Diagram 150 Case Unit Lubrication Points Diagram 151 Parts List 152 EXPLODED DIAGRAM FOR TM U200B U210...

Page 10: ...ower switch PAPER OUT LED ERROR LED FEED button PAPER OUT PRESS FEED PROM DIP switches Power supply connector Drawer kick out connector Frame ground screw Interface connector Frame ground screw 1 Chapter 1 Features and General Specifications ...

Page 11: ...ng Printing width 63 34 mm 2 49 Line feed 4 233 mm 1 6 default setting Programmable in units of 1 144 inch by using commands Paper feed method Friction feed Paper feed speed Approximately 4 17 inches second 25 lines second during continuous paper feeding Characters per line See the table on the next page Characters per inch See the table on the next page Total dot count horizontal direction 7 x 9 ...

Page 12: ...half dots 40 16 Graphics 1 7 x 3 1 mm 070 x 122 0 40 16 9 x 9 ANK 1 6 x 3 1 mm 063 x 122 3 half dots 33 13 3 Graphics 2 0 x 3 1 mm 079 x 122 0 33 13 3 7 x 9 ANK 1 2 x 3 1 mm 047 x 122 2 half dots 42 17 8 Graphics 1 6 x 3 1 mm 063 x 122 0 42 17 8 9 x 9 ANK 1 6 x 3 1 mm 063 x 122 2 half dots 35 14 5 Graphics 1 9 x 3 1 mm 075 x 122 0 35 14 5 Character sets Alphanumeric 95 International 32 Graphics 12...

Page 13: ... Thickness 1 sheet 0 06 to 0 085 mm 0024 to 0034 Weight 52 3 to 64 g m 2 13 9 to 17 lb 45 to 55 kg 1000 sheets 1091 x 788 Pressure sensitive paper Original sheet up to 1 copy sheet Thickness 1 sheet 0 05 to 0 08 mm 0020 to 0031 Total thickness 0 2 mm 0079 or less Recommended paper Mitsubishi carbonless paper blue Top and middle sheets N40Hi paper thickness 0 06 mm 0024 weight 47 2 g m 2 12 6 lb Bo...

Page 14: ...ading Power supply One of the following five AC adapters is included depending on the specifications AC adapter specifications Power consumption except when driving drawer kick out Operating Mean average 43 W Standby Average 6 W Model number Color Ribbon life 1 ERC 38 P Purple 4 million characters with continuous printing at 25 C 77 F ERC 38 B Black 3 million characters with continuous printing at...

Page 15: ...orage 10 to 50 C 14 to 122 F except paper and ribbon Humidity Operating 10 to 90 RH non condensing Storage 10 to 90 RH non condensing except paper and ribbon Figure 1 5 Operating temperature and humidity range Vibration resistance When packed Frequency 5 to 55 Hz Acceleration 2 G Sweep 10 minutes half cycle Duration 1 hour Directions x y and z Operating Temperature Range 40 C 104 F 65 34 C 93 F 90...

Page 16: ...l 4 edges Life Mechanism 7 500 000 lines See the UP 250 Specification for the print color switching number Print head 150 million characters using an average of 2 dots wire per character The print pattern is shown in the UP 250 Specification in Figure A 1 Auto cutter 800 000 cuts End of life is defined as the point at which the printer reaches the beginning of the wear out period MTBF 180 000 hour...

Page 17: ...ation Figure 1 6 UP 250 main unit configuration Carriage motor Paper feed motor Paper end detector Print head unit Home position sensor Paper roll near end detector optional Main circuit board Interface circuit board 8 ...

Page 18: ... motor Drive voltage 24 VDC 10 Winding resistance 39 5 Ω 1 9 Ω at 25 C 77 F per phase Current consumption Peak 1 5 A maximum Average 400 mA at 24 VDC 25 C 77 F 952 pps 600 mA maximum Number of solenoids 9 Winding resistance 19 2 Ω 5 at 25 C 77 F per phase Drive voltage 24 VDC 10 Type Photo sensor Voltage 5 VDC 5 Output level LOW when the carriage home position is detected 9 Main Unit Specification...

Page 19: ...rface section Type Microswitch Voltage 5 VDC 5 Output level High when paper end is detected Type Microswitch Voltage 5 VDC 5 Output level Low when a paper near end is detected Frame ground screw connector Power supply Drawer kick out connector Interface connector Frame ground screw Power supply connector Drawer kick out connector Frame ground screw Interface connector Frame ground screw 10 ...

Page 20: ...n closed status with the DLE EOT GS a and GS r commands Pin assignments See the table below Pin Number 1 power supply 2 GND 3 NC Shell Frame GND Pin Number Signal name Direction 1 Frame GND 2 Drawer kick out drive signal 1 See Drawer kick out drive signal below Output 3 Drawer open close signal See Drawer open closed signal below Input 4 24 VDC 5 Drawer kick out drive signal 2 See Drawer kick out ...

Page 21: ...s the waveforms in Figure 1 8 to pins 2 and 5 of the connector t 1 ON time and t 2 OFF time are specified by ESC p t 1 x 2 ms t 2 x 2 ms ON time ON time OFF time 0 2 12 Drawer kick out drive signal CAUTION To avoid overcurrent resistance of the drawer kick out solenoid must be 24 Ω or more Figure 1 9 Drawer kick out drive signal output waveform CAUTION Do not connect a telephone line to the drawer...

Page 22: ... stop bit fixed Data transmission Serial compatible with RS 232 Synchronization Asynchronous Handshaking DTR DSR or XON XOFF control Signal levels MARK 3 to 15 V Logic 1 OFF SPACE 3 to 15 V Logic 0 ON Baud rates 4800 9600 bps Data word length 7 or 8 bits Parity settings None even odd Stop bits 1 or more Connector Female D SUB 25 pin connector or equivalent 13 ...

Page 23: ...PACE indicates the printer is ready to receive data and MARK indicates the printer is busy A busy condition can be changed using DIP SW 1 8 as follows 2 When XON XOFF control is selected This signal indicates whether the printer is correctly connected and ready to receive data SPACE indicates the printer is ready to receive data The signal is always SPACE except in the following cases During the p...

Page 24: ...as follows 1 XON is not transmitted when the receive buffer is full 2 XOFF is not transmitted when the receive buffer is full NOTE The XON code is 11H and the XOFF code is 13H Printer status DIP SW 1 8 status ON OFF XON transmission When the printer goes on line after turning power on or after reset using the interface When the receive buffer is released from the buffer full state When the printer...

Page 25: ...on Printer to host Nibble or byte mode Reverse Mode Data Transmission from Printer to Host Status data transmission from the printer to the host occurs in nibble or byte mode These modes allow data transmission from the asynchronous printer under control of the host Data transmissions in nibble mode are made via the existing control lines in units of four bits a nibble In byte mode data transmissi...

Page 26: ...e ACK signal or while the BUSY signal is at a LOW level Interface cables should be as short in length as possible NC Not Connected ND Not Defined 17 Pin number Source Compatibility Mode Nibble Mode Byte Mode 1 Host Strobe Host Clk Host Clk 2 Host Ptr Data0 LSB Data0 LSB Data0 LSB 3 Host Ptr Data1 Data1 Data1 4 Host Ptr Data2 Data2 Data2 5 Host Ptr Data3 Data3 Data3 6 Host Ptr Data4 Data4 Data4 7 H...

Page 27: ...ulated ASB status signals left for transmission from the last to the newest ASB status transmissions are transmitted together at one time as one ASB status showing the presence of change followed by the latest ASB status Example In the normal wait state the ASB status is configured as follows In a sequence of operations including near end detection and the paper FEED button being pressed and relea...

Page 28: ...ng sending of bit image data is processed as bit image data not as a command Secondly any data transmitted when the receive buffer is full may be lost Example Check printer status using GS r after transmitting each line of data and use the 1KB receive buffer Transmit one line of data so that the receive buffer does not become full Buttons and Switches Power Switch Note Turn on the power only after...

Page 29: ...eive error Ignored Prints 2 Receive buffer capacity Data buffer 40 bytes Data buffer 1KB 3 Handshaking XON XOFF DTR DSR 4 Data word length 7 bits 8 bits 5 Parity check Yes No 6 Parity selection Even Odd 7 Baud rate selection 4800 bps 9600 bps 8 Busy condition When the receive buffer is full When the receive buffer is full in off line status DIP switch 2 DIP Switch Function ON OFF 1 Print column se...

Page 30: ...wer is turned on or reset using the interface If the DIP switch settings are changed after printer power is turned on the change does not take effect until the printer is turned on again or reset DIP switch 2 DIP Switch Function ON OFF 1 Print column selection I F Init reset signal 7 9 font 9 9 font 42CPL 35CPL 40CPL 33CPL 2 Internal use See Notes 3 Undefined 4 Fixed to ON Fixed to ON 21 ...

Page 31: ...y is not stable Paper roll near end PAPER OUT LED Red On Paper roll near end is detected 1 Off Adequate paper remains on the paper roll normal condition Blinking Waiting for restart test print on paper roll or for return to on line status after automatic paper feeding 1 The near end detector is an option Error ERROR LED Red On Off line except during paper feeding using the FEED button and during t...

Page 32: ...P switch 1 8 is off The ERROR LED blinks Fault signal is set to LOW Data Receive Error If one of the following errors occurs the printer prints or ignores the data depending on the setting of DIP switch 1 1 Parity error Framing error Overrun error Buffer Full Printing When subsequent data is received after the printer processes one line of data in the print buffer the printer automatically prints ...

Page 33: ...e printer is turned off NOTES is printed if no printable ASCII character corresponds to the data received Control commands are printed in bold for emphasis During the hexadecimal dump all commands except DLE EOT and DLE ENQ are disabled Insufficient print data to fill the last line can be printed by taking the printer off line See Switching between on line and off line earlier in this chapter Samp...

Page 34: ...to avoid damage to the printer and the power supply 100 V 120 V or 230 V specified at time of purchase Input voltage rating 90 to 264 V 100 VAC 10 to 230 VAC 15 108 VAC to 132 V 120 V type Frequency rating 50 to 60 Hz 3 Hz Input current rating Less than 100 VA AC switch None Energizing LED None Output voltage rating 24 VDC 5 Output voltage rating 2 0 A Output electric power rating 48 W Output peak...

Page 35: ... and Operating Principles Printer Mechanism Operating Principles The M U200 printer mechanism mounted in the UP 250 is composed of six mechanisms print paper feed ribbon feed detector auto cutter and ribbon switch Figure 2 1 M U200 26 ...

Page 36: ...parts shown in the figure below Figure 2 2 Print mechanism unit Paper feed frame assembly Belt Print head unit Belt tension pulley Carriage guide shaft Carriage shaft Carriage motor assembly Print head FPC Print head ground plate assembly Carriage sub assembly 27 ...

Page 37: ...nput to the drive coil the iron core is magnetized and the actuating plate is pulled in the direction of arrow A This action pushes the wire toward the platen When the wire strikes the ink ribbon and paper against the platen a single dot is printed The platen is the portion of the paper feed frame being struck by the wires during printing When energizing of the drive coil is completed the wire and...

Page 38: ...ms each time the carriage motor rotates one step 7 5 To print the character 2 print solenoids 2 and 9 are energized first using the same timing as the carriage motor phase switching signal Then print solenoid 8 is energized at TnH being delayed a half dot The remaining print solenoids are energized correspondingly and the character 2 is finally printed Figure 2 5 Print timing chart 1 2 3 5 4 6 7 8...

Page 39: ...re below Paper feeding is performed by driving the paper feed motor stepping motor Figure 2 6 Paper feed mechanism unit Paper hold spring Paper hold roller Paper hold roller shaft Paper feed roller assembly Upper paper guide Paper feed frame assembly Paper feed reduction gear Paper feed motor 30 ...

Page 40: ...aper Paper feeding Paper feeding is performed by conveying the paper feed motor s rotational power from the paper feed motor gear through the paper feed reduction gear paper feed gear and paper feed roller Since the paper feed roller and paper hold roller are pressed together paper advances to the top of the paper feed frame assembly because of the friction between the rubber of the paper feed rol...

Page 41: ...ribbon feed mechanism unit consists of the parts shown in the figure below The printer feeds the ribbon automatically as the carriage motor rotates Figure 2 8 Paper feeding Figure 2 9 Ribbon feed mechanism unit Paper roll Paper feed roller Paper feed Paper feed Paper feed gear Paper hold roller reduction gear motor gear Ribbon intermediate gear Ribbon cassette Ribbon take up assembly Ribbon drive ...

Page 42: ...ction of arrow E When the carriage motor rotates in the reverse direction and the carriage motor gear rotates in the direction of arrow F the ribbon drive plate moves in the direction of arrow G disengaging the ribbon drive gear from the ribbon transmission gear Therefore the ribbon take up assembly rotates in the direction of arrow E only when the carriage motor rotates forward Then the ribbon fe...

Page 43: ...b assembly operation errors The sensor sub assembly consists of an LED and photo transistor When the carriage sub assembly moves the detection protrusion passes between the LED and photo transistor and blocks the optical axis of the photo transistor changing the output level of the photo transistor The change in the output level is used as a signal to detect the movement of the carriage sub assemb...

Page 44: ...etection lever is pressed against the side of the paper roll as depicted by the solid lines in the figure below This keeps the microswitch turned on When the amount of paper left on the roll decreases below a predetermined amount the tip of the near end detection lever no longer presses against the side of the roll and moves in the direction indicated by the arrow into the hole in the center of th...

Page 45: ...e printing area Switching from Black to Red When the carriage sub assembly print head unit moves in direction E and reaches the ribbon switch area the ribbon switch lever is pushed by the ribbon switch section and moved to position A shown by the dotted lines The ribbon assembly frame is pushed upward by the push face for the ribbon frame The detent face for the ribbon switch falls into the ribbon...

Page 46: ...electrical circuitry of the printer consists of the main circuit board and the interface circuit boards UB S01 RS 232 UB P01 1284 or UB S02 RS 485 The figure below is a component connection diagram for the electrical circuitry Figure 2 15 Ribbon Switching Figure 2 16 Component connection diagram Ribbon switch lever Ribbon switch lever hole A B Detent face for ribbon switch Push face for ribbon fra...

Page 47: ...bits 64K x 8 bits Operation panel control circuit Drawer kick out driver circuit Print head driver circuit Paper feed motor driver circuit DIP switch read circuit Various detector circuits Carriage motor driver circuit Auto cutter driver circuit The interface circuit board contains the following Reset circuit Host interface circuit 38 Circuit board block diagram ...

Page 48: ...The figure below illustrates the circuit block diagram for the printer Figure 2 17 Circuit board block diagram 39 ...

Page 49: ...a Can not to be used Internal RAM 2KB Internal I O 96bytes 0000H FFFFH F000H F7A0H FFA0H FFFFH 0000H 0000H FFFFH 0000H FFFFH 0000H FFFFH 0000H FFFFH For multi lingual Character generator area 2 64KB For multi lingual Character generator area 1 64KB For multi lingual Character generator area 3 64KB For multi lingual Character generator area 4 64KB Cannot be used F7A0H Cannot be used 40 ...

Page 50: ...t is input to printer power and the 5 V regulator circuit Printer power and drawer drive power are the converted 24 1 V that is regulated by series of regulators U2 to U4 5 VDC control circuit The 5 V regulator circuit switches the 24 V power input and converts it to 5 V The switching regulator IC U1 switches the 24 V input smooths it via C1 and outputs 5 V Power for the RS 232 is generated by the...

Page 51: ... addition the C terminal pin 4 of the reset IC U9 is connected to the reset signal DSR signal or pin 25 input signal from the host interface via DIP switches 2 3 and 2 4 If a reset signal is applied to this pin reset IC output goes LOW and the CPU and other components are reset The reset signals differ depending on the interface specifications RS 232 serial interface Two signals can be selected DS...

Page 52: ...as P100 5 AVCC AVCC I 5 V Analog digital converter standard voltage 6 AVSS AVSS I 0 V Analog digital converter GND terminal 7 P60 AN0 V DTC I Analog 24 V power voltage detection 8 P61 AN1 HD TEMP I Analog Head temperature detection 9 P62 NE I TTL Paper roll near end detection LOW no paper HIGH paper present 10 P63 DK S I TTL Drawer open closed LOW open 11 P64 RE I TTL Paper roll end detection LOW ...

Page 53: ...TTL Paper feed switch LOW active 33 ALE ALE O TTL Address latch enable signal Latches address on bus AD0 to AD7 at fall 34 VCC VCC I 5 V Main power terminal 5 V 35 AD AD0 3 state TTL Address data bus Transmits address lower 8 bits and data 36 AD AD1 37 AD2 AD2 38 AD3 AD3 39 AD4 AD4 40 AD5 AD5 41 AD6 AD6 42 AD7 AD7 43 A8 A8 O TT LAddress bus address upper 8 bits 44 A9 A9 45 A10 A10 46 A11 A11 47 A1...

Page 54: ...r signal LOW on 66 P42 HEAD6 O TTL Print head 6 driver signal LOW on 67 P43 HEAD5 O TTL Print head 5 driver signal LOW on 68 P44 HEAD4 O TTL Print head 4 driver signal LOW on 69 P45 HEAD3 O TTL Print head 3 driver signal LOW on 70 P46 HEAD2 O TTL Print head 2 driver signal LOW on 71 P47 HEAD1 O TTL Print head 1 driver signal LOW on 72 P48 HEAD9 O TTL Print head 9 driver signal LOW on 73 P51 T04 24...

Page 55: ... power supply circuit The ERROR and PAPER OUT LEDs are driven by U5 Switch detection is also executed by the U5 Various detector circuits When the printer detects paper the paper detector at the paper inlet turns the input signal to the CPU U5 LOW This detector also functions as the semi automatic loading detector A home position sensor is provided to detect the print head position The input signa...

Page 56: ...r kick out drive circuit Activating the DKD1 and DKD2 signals from the CPU U5 causes transistors Q29 and Q30 to turn on This causes transistor array QM5 to turn on and the drawer drive signal is output The drawer status signal DK_S which indicates whether or not the drawer is open is input to the CPU U5 allowing the host to check the status via the interface Figure 2 22 Various detector circuits 4...

Page 57: ...status readable switches Each signal is input to the CPU The signal is read as LOW when the switch is on and HIGH when the switch is off 5 V R28 5 V Q34 C39 Q29 Q30 D2 R48 R47 8 6 4 2 9 7 5 3 1 1 0 QM5 C45 G N D VI VO U2 1 2 3 4 5 6 FG DKD 1P DKD SW DKD 2P SG CN2 DKD U5 62 63 10 P32 P33 P63 C16 D8 5 V R13 DC 24 30V IN D8 D46 5V 5V 24V 5V 48 Figure 2 23 Drawer kick out drive circuit DIP switch read...

Page 58: ...diately after the printer initialization or the power is turned on 1 Resistance between E and B is used for pull up resistors in the transistor Figure 2 24 DIP switch read circuit 5V 52 53 54 55 56 57 58 59 P20 P21 P22 P23 P90 P91 P92 P93 1 2 3 4 5 7 6 8 DSW1 U5 D24 D23 D22 D21 D20 D19 D18 D17 Q14 Q15 Q16 Q17 Q18 Q19 Q20 Q21 Q36 Q35 D14 D25 1 2 DSW2 1 80 P57 P56 R33 5 V Q39 Q28 Q38 R32 5 V R29 5 V...

Page 59: ...l conversion of the partial pressure difference between the heat sensor and R18 is carried out in AN1 pin 8 of the CPU U5 and the temperature is calculated If the head is overheating or working improperly the ERROR LED flashes Figure 2 25 Print head driver circuit COM 3 5 7 5 7 1 3 Print head unit HEAD1 HEAD5 HEAD6 HEAD2 RM3 8 7 6 5 4 3 2 1 Q4 9 7 5 3 8 6 4 2 1 1 0 QM1 Q6 Q5 Q7 5V RM4 8 7 6 5 4 3 ...

Page 60: ...o LOW 24 V labeled 24B signal in the figure below is applied to the COM terminal of its coil and it is made to run by changing P20 P21 P22 and P23 to HIGH and LOW Its speed is determined by the speed of changing P20 P21 P22 and P23 between HIGH and LOW At the end of paper feeding P52 of the CPU is once again set to HIGH Figure 2 26 Paper feed motor driver circuit Figure 2 27 Carriage motor driving...

Page 61: ...l bridge configuration and controls motor rotation clockwise and counterclockwise The position of the auto cutter blade is detected by the signal connected to P67 of the CPU Figure 2 28 Auto cutter drive circuit 1 2 3 CN9 4 AC M1 AC M2 GND AC RES Auto cutter 1 2 C21 5V R35 R34 IN1 IN2 U6 24V R57 R58 VM OUTA OUTA GND P100 P101 3 4 1 2 TA8428K 7 3 5 4 GND 1 2 3 4 GND P67 C20 BLOCK 1 U5 52 ...

Page 62: ... of subsequent print jobs may suffer the printing color may become uneven or some dots may not be printed because of damage to the surface of the platen printing wires or ribbon Use a ground wire connected to the frame ground FG screw to ground the printer Be careful when wiring and connecting the interface power and drawer kick out cables to avoid subjecting the connectors to excessive pressure P...

Page 63: ...ned Ink may leak The ribbon may catch on the print head Do not re ink a ribbon If a ribbon is re inked Print quality could deteriorate due to a malfunction of the print wires Ink may leak Replacing the Paper Roll Note Be sure to use roll paper that meets the specifications 1 Turn on the printer 2 Open the printer cover 3 Pull the paper and cut the paper at the dotted line shown in the illustration...

Page 64: ...Remove the used paper roll 6 Using scissors cut the leading edge of the paper roll perpendicular to the paper feed direction as shown below 7 Insert the paper roll Note Be sure to note the correct direction that the paper comes off the roll as shown below ...

Page 65: ...ab up and toward you 9 Hold both edges of the paper and insert it straight into the paper slot The printer feeds the paper automatically 10 If the paper is not coming out of the manual cutter press the paper FEED button until the paper comes out ...

Page 66: ...rinter is off line until the PAPER OUT light is off Replacing the Ribbon Cassette CAUTION Make sure the printer is not receiving data when you replace a ribbon cassette otherwise data may be lost 1 Open the printer cover 2 Open the auto cutter by pulling the tab up and toward you 3 Remove the used ribbon cassette 4 Turn the ribbon cassette s knob in the direction of the arrow to take up any slack ...

Page 67: ...ow marked on the cassette otherwise the ribbon cassette may be damaged 5 Insert the ribbon in the position shown in the illustration below and push the ribbon cassette until it clicks Note Make sure that the ribbon is installed between the print head and the platen without wrinkles or creases ...

Page 68: ... 59 6 Turn the ribbon cassette s knob 5 or 6 times in the direction of the arrow again to take up any slack in the ribbon ...

Page 69: ...tter by pulling the tab up and toward you 5 Remove the jammed paper by pulling it in the direction of paper feeding Cut here Removing Jammed Paper Follow these steps to clear a paper jam CAUTION The print head becomes very hot during printing Allow it to cool before you reach into the printer 1 Turn the printer off and open the printer cover ...

Page 70: ...opposite direction of paper feeding 6 If paper still remains in the printer follow the steps below 7 Remove the ribbon cassette 8 Loosen the screw securing the print head cover Turn the screw only until you can tilt it as shown in the illustrious ...

Page 71: ...er 9 Remove the print head cover 10 Remove all the jammed paper Note Do not pull the jammed paper in the opposite direction of paper feeding 11 Replace the print head cover and secure it with the screw 12 Replace the ribbon cassette and close the auto cutter ...

Page 72: ... you can see the blade in the auto cutter slit the blade is not in the normal position insert a screwdriver into the right side of the auto cutter and turn the gear inside to move the blade to the normal position 14 Replace the paper roll and close the printer cover ...

Page 73: ...hown in the illustration below You can turn the power on or off with the switch cover attached by inserting a pointed object like a ball point pen through either of the two small holes on the switch cover CAUTION If an accident occurs when the power switch cover is attached pull the AC adapter cord out of the outlet immediately otherwise the printer may be damaged ...

Page 74: ...raps foreign matter Open the roll paper cover and make sure there are no large pieces of paper or other foreign matter present Clean out any paper or foreign matter Periodic inspection Checkpoints Standards Remedies Dust paper particles or dirt on and in the printer No dust paper particles or dirt should be allowed to build up on or in the printer Clean the printer thoroughly with a vacuum cleaner...

Page 75: ...ricants Standard Lubrication During disassembly and reassembly clean the parts first then lubricate them See the lubrication points table in this chapter and the lubrication and adhesive points diagrams in the Appendix Lubricate or overhaul after every 7 5 million lines printed Lubricants The types of lubricants used greatly affect the printer s performance and durability and a lubricant s low tem...

Page 76: ...Thickness gauge 0 50 mm 0 55 mm 0 60 mm Tweezers Slanted blade cutter Lubrication points No Lubricant type Lubrication point 1 Contact points between the carriage shaft and carriage sub assembly 2 points O 10 G 31 G 31 G 31 G 31 G 31 G 31 2 Ribbon intermediate gear shaft 3 Both ends of the guide roller 4 Both ends of the receive roller 5 Switching points of ribbon switch lever 6 Switching point of...

Page 77: ...he Self test 1 Insert a paper roll and a ribbon cassette in the printer and close the printer cover 2 Turn off the printer 3 Turn on the printer while keeping the FEED button depressed The self test starts and status information is printed Self test Standby 1 When status information printing is complete the following is printed Self test printing Please press paper FEED button The PAPER OUT LED fl...

Page 78: ...ly by technicians Execute the self test Start Power on Is POWER Is PAPER Is paper roll in Is self test normal END Replace or insert paper roll 1 3 No Yes Yes No Yes No Yes No No Yes LED lit OUT LED lit near end condition or not inserted 2 4 5 loading executed Semi automatic No Yes Is ERROR LED flashing Take steps described in Error types and countermeasures END Does auto cutter perform normally Ho...

Page 79: ... main PCB OK OK OK Is power supply cable connected properly Does external power supply have proper output voltage rating approximately 40 V in no load condition Has fuse F1 on main PCB blown End End End End No No No No No No Yes Yes Yes Yes Yes 1 POWER LED does not light Yes Make sure main PCB does not have any damage such as burns ...

Page 80: ...uity normal Replace the near end sensor No OK Replace printer mechanism assembly OK Replace main PCB No No END END END Is the paper Yes 2 PAPER LED is lit 2 Yes Yes The near end sensor is optional Turn the power on again OK Yes No END ...

Page 81: ...aper jammed in the paper inlet path Remove the paper Is connector CN6 attached firmly Attach connector firmly Replace printer mechanism assembly Replace main PCB No No No No No Yes Yes Yes Yes Yes 3 Semi automatic loading is not executed ...

Page 82: ...ox 24 V Approx 5 V 4 Does the printer not Replace main PCB END Yes No 4 Self test is not normal END OK No Yes perform at all Replace printer mechanism assembly Is the output voltage of the regulator circuit on the main board within the specified range END OK END No Replace the mechanism No Replace the main PCB Yes ...

Page 83: ...Yes Is there Remove jammed paper End End End OK 5 The auto cutter does not perform correctly Yes a paper jam in the auto cutter circuit board Turn on the power again Disassembly of the auto cutter unit is prohibited If you disassemble it performance cannot be guaranteed ...

Page 84: ...set to identical values at host and printer Make settings identical Replace with a proper cable Is Connect the interface End End End End OK OK OK 6 Data from host is not printed normally Yes Does interface cable match specifications Yes connected to the main PCB firmly interface PCB PCB firmly mechanism assembly Yes Dotted line indicates the process of checking problems for the serial interface ...

Page 85: ...leshooting table for printer operation failure Problem Checkpoint Action Level Probable cause The POWER LED does not light when the power is on The AC adapter may be bad Check output voltage of the AC adapter approximately 40 VDC with no load Replace the AC adapter The fuse may be blown Check if fuse F1 on the main circuit board assembly is blown Replace fuse F1 See Replacing the Fuse in Chapter 5...

Page 86: ... detector assembly may be bad The near end detector is an option B Check the signal of the near end detector assembly Replace the near end detector assembly The printer is not initialized home position detection error The connector is not inserted correctly A Check if the pins of CR motor cable are inserted in connector CN5 of the main circuit board unit Reinsert the connector The carriage motor a...

Page 87: ...paper detection switch assembly Table 4 2 Troubleshooting table for bad printing Problem The printer does not print The carriage motor operates but nothing is printed or the print color is light The ribbon in the ribbon cassette may be bad Check if the color of the ribbon is faded or the ribbon is wrinkled or torn Replace the ribbon cassette The platen gap may be incorrect Check the platen gap sta...

Page 88: ...paper roll is used Use the correct paper roll See Paper Specifications in Chapter 1 The paper path may be incorrect Check if the paper supply path is blocked Remove paper particles and foreign substances The connector is not inserted correctly Make sure that the PF motor cable pins are inserted in connector CN6 of the main circuit board Reinsert the connector The paper feed roller may be bad Check...

Page 89: ...amage to the paper feed reduction gear and paper feed gear Replace any worn or damaged parts The printer prints but the ribbon is not fed The ribbon cassette may be loose Check if the ribbon cassette is installed correctly Install the ribbon cassette correctly See Replacing the Ribbon Cassette in Chapter 3 The ribbon cassette may be bad Check if the ribbon is fed by rotating the ribbon tightening ...

Page 90: ...med If deformed replace the ribbon frame assembly The ribbon is defective Verify that the color of the ribbon is not blurred or the ribbon is not rumpled or worm Replace the ribbon cassette if the ribbon is worn or the print color is light Color does not change Black to red or red to black The ribbon release spring is unhooked or damaged Verify that the ribbon release spring is not unhooked or dam...

Page 91: ...on 7 Auto cutter error Action 1 Action 2 Action 3 Action 4 Action 3 Action 4 160 ms detection error Home position cannot be detected due to a paper jam or other problem Print head temperature is out of normal operating range 3 High voltage error 4 Low voltage error 5 CPU execution error 6 Print head temperature detection error Abnormality occurs in the auto cutter CPU is trying to execute an inval...

Page 92: ... 83 Action 1 Wait for the print head temperature to drop printer recovered from the error Replace main PCB Yes No END END END No OK Action 1 Yes Replace printer mechanism assembly Has the ...

Page 93: ...ector CN5 Remove paper Insert the connector OK END END OK OK END Replace main PCB Action 2 Yes END No Yes No Yes Yes inserted firmly firmly Replace printer mechanism assembly Are there any chips of paper in the home position sensor ...

Page 94: ...o Action 3 Turn the printer power off Does external power supply have proper output voltage rating approx 40 V in no load condition Replace external power supply Replace main PCB Replace printer mechanism assembly OK OK Action 3 Yes ...

Page 95: ... 86 END END Yes No Action 4 Replace main PCB Replace printer OK Action 4 mechanism assembly ...

Page 96: ...tapping screw not fluted class 2 CP O Cross recessed Pan head screw with outside toothed lock washer CPS tite Cross recessed Path head S tite self tapping screw CPS tite O Cross recessed Pan head S tite screw with outside toothed lock washer CPS tite S P4 Cross recessed Pan head S tite self tapping screw with Spring lock washer and plain washer CPT B Cross recessed Pan head self tapping screw not ...

Page 97: ...ct the external power supply 3 Remove the main cover assembly from the printer 4 Remove the lower plate from the printer 5 Use tweezers to remove the blown fuse 6 Replace the fuse with a 125 V 2 0 AT Littelfuse 154002T CPS tite M3x6 0 59 to 0 78 N m 6 to 8 kgf cm Fuse ...

Page 98: ...nit 1 Remove 4 screws and remove the upper case 2 Remove the right side screw securing the auto cutter fixing plate 3 Loosen the thumb screw and remove the head cover Upper case Auto cutter fixing plate screw Thumb screw Head cover ...

Page 99: ... 5 Remove the screw seuring the print head unit 6 Disconnect the print head FPC and remove the print head unit Refer to the corresponding assembly section s in this chapter for the assembly procedure Ribbon frame fixing plate Ribbon frame assembly Ribbon frame spring Print head unit Print head FPC 90 ...

Page 100: ...cutter cable from the cable connector for the auto cutter The illustration does not have the main cover assembly However it s not necessary to remove it 3 Remove 2 REs 4 Remove the auto cutter plate shaft auto cutter plate spring shaft and auto cutter plate spring Then remove the auto cutter Auto cutter cable Auto cutter cover screw Connector Auto cutter Auto cutter plate spring Auto cutter plate ...

Page 101: ... 92 Removing the main circuit board assembly 1 Remove the lower plate 2 Remove the interface circuit board assembly lower plate Interface circuit board assembly ...

Page 102: ... board toward the arrow Move the 2 cables toward the arrow Move the board toward the arrow Once the board is released from the plate marked with the main circuit board can be removed from the printer Refer to the corresponding assembly sections in this chapter for assembly procedures connectors connector connectors screws ...

Page 103: ...plate spring and paper hold roller 3 Hold the paper feed roller assembly at the angle shown in the illustration and insert the thin end of the shaft into the paper feed frame assembly Then move the roller assembly into place Paper hold roller shaft Apply G 31 Paper hold roller Paper hold plate spring Paper feed frame assembly Paper feed roller assembly Thin portion ...

Page 104: ...own in the illustration 6 Fix the J feed roller shaft holder left onto the paper feed roller assembly s shaft insert it in the frame and lock it with the RE Note The right J feed roller shaft holder which is fixed to the paper feed roller assembly is inserted into the frame first then the left J feed roller shaft holder is attached J feed roller shaft holder right Paper feed roller assembly RE 2 3...

Page 105: ...mbly attach the paper guide to the paper feed frame assembly Press the paper guide until it clicks Check that the 2 dowels on the paper feed frame are in the rectangular holes on the upper paper guide Paper feed Paper feed motor frame assembly CCS tite M3x6 0 69 to 0 88 N m 7 to 9 kgf cm Dowels Rectangular holes Paper feed roller assembly s shaft Upper paper guide U cut portion ...

Page 106: ...ings to the paper feed frame assembly and paper hold roller shaft Hook the spring on the paper feed motor side first If you hook the other side first the paper hold shaft is hard to hook Paper hold roller shaft assembled Paper feed frame assembly Paper hold roller shaft Paper hold spring Paper feed frame assembly Paper feed motor ...

Page 107: ...n take up assembly and ribbon drive plate assembly 1 Place the ribbon switch lever by fitting its hole onto dowel A of the base frame assembly While rotating the ribbon switch lever make sure that the protrusion part does not catch and moves freely 2 Hook the ribbon release spring to the notch of the ribbon switch lever and hook B of the base frame assembly 3 Fit the holes of the ribbon release le...

Page 108: ...smission gear and ribbon take up assembly together to the base frame assembly 6 Attach the ribbon drive plate assembly to the base frame assembly and fix with the REs Ribbon switch lever Notch Ribbon release lever RE 3 Ribbon release spring Base frame assembly A B RE 2 3 Ribbon Ribbon Base frame assembly intermediate gear transmission gear Ribbon drive plate assembly Ribbon take up assembly ...

Page 109: ...2 to lock it Main Assembly 3 Paper feed frame assembly 1 Place the paper feed frame assembly sub assembly A on the base frame assembly so that portion A is aligned with portion B 2 Press down the paper feed frame assembly until the tabs on the paper feed frame assembly lock into the rectangular holes in the paper feed frame 1 Tab Tension plate assembly Base frame assembly 2 ...

Page 110: ...slide the carriage motor assembly in the direction of the arrow to fit the other two corners of the carriage motor assembly under the tabs of the base frame assembly CBT B M3x10 Portion A Paper hold plate spring Rectangular hole Portion A Tab CBT B M3x10 Portion B Base frame assembly Paper feed frame assembly 0 49 to 0 69 N m 5 to 7 kgf cm 0 49 to 0 69 N m 5 to 7 kgf cm A corners Carriage motor as...

Page 111: ... motor and paper feed motor cables outside the base frame as shown in the illustration Main Assembly 5 Carriage sub assembly 1 Fit the belt over the carriage motor sub assembly gear and the tension plate gear Paper feed motor cable Paper feed Hook A Carriage motor cable frame Carriage Belt Tension plate gear Carriage motor sub assembly gear sub assembly ...

Page 112: ...embly At this time hook the paper hold spring feet to the carriage shaft s dowels as shown in the illustration Check that the paper hold spring hooks are hooked in the correct direction The direction is different for the right and left springs Carriage shaft Paper feed frame assembly Carriage subassembly Paper hold spring hook ...

Page 113: ... as shown in the illustration 2 Push the adjustment roller shaft holders and turn them 90 degrees in the direction of arrow C The A portion points straight down Check that the adjustment roller shaft holders click into place Adjustment roller shaft holder Carriage shaft Carriage shaft Portion A Adjustment roller shaft holder C ...

Page 114: ...late assembly and paper feed frame assembly 2 Push the carriage motor assembly in the direction of the arrow to make sure the motor is properly placed Then attach the screw Be careful not to move the tension plate assembly when securing the screw Carriage guide shaft Base frame assembly Carriage sub assembly Carriage motor assembly CPS tite S P4 M3x8 Paper feed frame assembly s hook Belt tension s...

Page 115: ...rame assembly then attach the board by pushing it in 2 Press the board down to attach it completely 3 Attach the paper detector switch to the base frame assembly 4 Make sure the sensor board is not damaged 4 Hook the sensor assembly lead wires to the base frame assembly as shown in the illustration Base frame hook Belt tension spring Sensor assembly Base frame assembly Paper detector switch ...

Page 116: ...ction switch sub assembly lead wires as shown in the illustrations and make sure that the lead wires are as close as possible to the base frame surface Paper detection switch sub assembly lead wires Sensor sub assembly s lead wires ...

Page 117: ...er folding the projections of print head FPC insert the FPC under the arm of the base frame assembly while fitting the projections with the arm 2 Fold the straight side of print head FPC See the figure Carriage motor Carriage motor Motor cables heat sink assembly Surface B Surface A Paper feed frame Main Assembly 11 Carriage motor heat sink assembly 1 Attach the carriage motor heat sink to the car...

Page 118: ... frame assembly 5 Adjust the print head FPC from the back of base frame assembly 6 Pass the end of print head FPC through the guide of base frame assembly The projections of print head FPC must be held with the arm of base frame assembly Arm section Projection Print head FPC Straight side Base frame assembly Arm Hook Print head FPC processing ...

Page 119: ...and then secure the print head unit to the carriage sub assembly with the screw 3 Place the print head FPC under the hooks on the carriage sub assembly and then secure the print head unit to the carriage sub assembly with the screw CPP tite M3x10 0 49 to 0 69 N m 5 to 7 kgf cm Print head unit Print head FPC O 10 application points Carriage sub assembly Hooks A ...

Page 120: ...rint head FPC again Main assembly 14 Left cover fixing plate and right cover fixing plate 1 Attach the dowel of the left cover fixing plate into the hole in the paper feed frame and secure it with the screw 2 Attach the dowel of the right cover fixing plate into the hole in the paper feed frame and secure it with the screw There must be space Right cover fixing plate Left cover fixing plate CCS ti...

Page 121: ... 112 Main Assembly 15 Ribbon frame earth plate 1 Put the ribbon frame earth plate in the carriage guide shaft Ribbon frame earth plate Carriage guide shaft ...

Page 122: ...ply G 31 to the each ribbon frame assembly mounting shaft left and right in the base frame assembly A line of lubrication length 2 mm x wide 1 mm 4 Attach the shaft A and B of the base frame assembly to the ribbon frame assembly 5 Attach the ribbon frame fixing plate into the groove in the right ribbon frame assembly mounting shaft A 6 Hook the ribbon frame spring to C of the base frame assembly a...

Page 123: ...le in the head cover and secure the RE 2 5 in the center of the thumb screw 2 Insert the tab of the head cover into the left cover fixing plate first and then rotate and secure with the thumb screw while aligning the dowel Thumb screw Head cover RE 2 5 Tab Dowel Left cover fixing plate ...

Page 124: ... 115 Main Assembly 1 Case Unit Lower cutter plate assembly 1 Attach the lower cutter plate to the upper plate and secure it with the screws CPS tite M3x6 0 59 to 0 78 N m 6 to 8 kgf cm Upper plate ...

Page 125: ...er mechanism assembly 2 Align the rectangular hole with the hook hole A with dowel B and then secure the plate with the screw Make sure hole C is aligned with dowel D Hole C Upper plate Hole A Rectangular hole Dowel D Dowel B CBS tite M3x5 0 59 to 0 78 N m 6 to 8 kgf cm Hook ...

Page 126: ...ote When you remove the upper plate lift it up in the direction of arrow 1 slightly then move it in the direction of arrow 2 to release the hook to remove the plate completely Upper plate Arrow 1 Arrow 2 Hook ...

Page 127: ...ide first and then the drawer kick out and power connectors side Secure the circuit board with the screws Make sure to use the correct screw for each location CP 0 M3x6 0 59 to 0 78 N m 6 to 8 kgf cm CPS tite M3x6 Main circuit board assembly CP 0 M3x6 0 59 to 0 78 N m 6 to 8 kgf cm CPS tite M3x6 0 59 to 0 78 N m 6 to 8 kgf cm Power switch Upper plate ...

Page 128: ... make sure to insert the cables so that black or red colored side connects to the pin 1 side of each connector Make sure not to confuse paper feed motor cable and carriage motor cable Also check that the black or red side of each cable is on the pin 1 side of the connector Red cable Black cable Main circuit board assembly Carriage motor cable Paper feed motor cable Print head FPC CN6 CN5 Pin 1 sid...

Page 129: ...arriage motor cables through portion C and the sensor assembly lead wires through portion D 3 Secure the lower case with the screws Adjustment Perform the platen gap adjustment by referring to the Adjustment section at the end of this chapter Portion B Lower case Portion C Upper plate Portion D Portion A CPT B M3x12 0 59 to 0 78 N m 6 to 8 kgf cm Sensor assembly s lead wires CPT B M3x12 0 59 to 0 ...

Page 130: ...ach the manual cutter to the paper feed frame assembly and secure it with the screw Check that the manual cutter is aligned with the paper feed frame as shown in the illustration below Paper feed frame Manual cutter CBS tite M3x5 0 69 to 0 8 N m 7 to 9 kgf cm Paper feed frame Manual cutter ...

Page 131: ...ls install the auto cutter fixing plate and secure it with the screw 3 Secure the earth plate with the screw Auto cutter fixing plate Earth plate CBS tite M3x5 0 59 to 0 78 N m 6 to 8 kgf cm CP O M3x6 0 59 to 0 78 N m 6 to 8 kgf cm ...

Page 132: ...t the right side onto the right to match the right dowel 2 Attach the auto cutter lock lever with the RE 2 3 3 Attach the auto cutter lock lever spring with the RE 2 3 4 Align the auto cutter plate assembly with the holes of the auto cutter fixing plate Auto cutter assembly Auto cutter plate assembly 0 59 to 0 78 N m 6 to 8 kgf cm CBS tite M3x4 Dowel Dowel RE 2 3 RE 2 3 Auto cutter lock lever Auto...

Page 133: ...haft and auto cutter plate shaft in the holes of the auto cutter fixing plate and secure them with the RE 3 Attach the other side of the spring into the hook of the auto cutter fixing plate 6 Connect the auto cutter cable to the cable connector for the auto cutter Auto cutter plate spring Hole for spring Auto cutter plate Auto cutter plate shaft RE 3 Auto cutter plate assembly Holes for shafts Hoo...

Page 134: ...into the other slit in the auto cutter cover 8 While aligning the dowel install the auto cutter cover and secure it with the screw Arrange the cable wires so that they come through the cut portion shown in the illustration Auto cutter cover The other slit Slit Cut portion Auto cutter cover 0 59 to 0 78 N m 6 to 8 kgf cm CBS tite M3x5 ...

Page 135: ...llers to the lower case 4 While holding the auto cutter as shown in the illustration attach the upper case to the lower case and secure it with the screws 5 Apply G 31 to both ends of the guide roller 6 Attach the guide roller to the upper case 7 Remove any dust and dirt from the switch panel mounting surface and paste the switch panel on the upper case CPT B M3x12 Switch panel CPT B M3x12 0 59 to...

Page 136: ... 127 ...

Page 137: ...lock screws serial interface or the CPS tite screws parallel interface 3 Connect the interface circuit board assembly to the main circuit board assembly and secure with the screws Serial Interface Hexagon lock screws 0 39 to 0 59 N m 4 to 6 kgf cm CP 0 M3x6 0 59 to 0 78 N m 6 to 8 kgf cm CP 0 M3x6 0 59 to 0 78 N m 6 to 8 kgf cm Connector plate Interface circuit board assembly Main circuit board as...

Page 138: ... 129 Parallel Interface Check that the interface board assembly is firmly connected to the main circuit board assembly CPS tite M3 6 board assembly Interface circuit 4 to 6 kgf cm ...

Page 139: ...s 2 Attach the ROM cover to the lower plate and secure it with the screws 3 Attach the rubber feet to the lower case For the rubber foot attached to the front of the printer turn the foot lightly until it stops CPS tite M3x6 0 59 to 0 78 N m 6 to 8 kgf cm Rubber foot Lower case ROM cover ROM spacer Lower plate Rubber foot at the front of the printer ...

Page 140: ...o the main cover assembly with the screws 2 portions 2 Secure the hinge assembly of the main cover assembly to the upper case with the screws 2 portions Upper case Main cover assembly 0 59 to 0 78 N m 6 to 8 kgf cm CPT B 3x12 Hinge assembly 0 59 to 0 78 N m 6 to 8 kgf cm CPT B 3x12 ...

Page 141: ...ant to install the spacers The amount A of paper remaining including the paper roll core when the near end detector senses a paper near end is changed by the spacers The amount A with the spacers 3 to 4 mm 0 12 to 0 16 The amount A with the spacers 6 mm 0 24 The value of A is obtained by calculation only Therefore it may not be appropriate for all printers Near end detector lever CBB tite M2x8 0 1...

Page 142: ...tector s lead wires into the connector Make sure to arrange the lead wires as shown in the illustration 6 The inner diameter of the paper core should be 10 5 to 12 5 mm 0 41 to 0 49 Round corner Round corner Near end detector assembly CPT B M3x12 of spacer 0 59 to 0 78 N m 6 to 8 kgf cm Connector CN11 Near end detector s lead wires After assembling the near end detector assembly make sure the near...

Page 143: ... paper hold plate spring and insert the scaling gauge between the print head unit and platen 3 Measure the space and if the value is out of the standard range 0 55 mm 0 05 mm 0 022 0 002 turn the adjustment roller shaft holders to get a value within the specified range 4 Perform the adjustment at two positions Ribbon frame knob Ribbon frame assembly Scaling guage Print head unit Paper hold Portion...

Page 144: ...l functions Data transmission Bit serial Synchronization Asynchronous Handshaking Depends on the DIP switch settings DTR DSR or XON XOFF control Signal levels 2 0 V to 5 0 V Logic 1 0 0 V to 0 8 V Logic 0 Baud rates Depends on the settings of the TM series printer 2400 to 19200 Data word lengths Depends on the settings of the TM series printer 7 or 8 bits Parity settings Depends on the settings of...

Page 145: ...ready for communication the host is not ready to receive data If the electric potential of DR1 is higher than DR2 the TM series printer is ready for communication the host is ready to receive data If the electric potential of DR1 is lower than DR2 the TM series printer is not ready for communication the host is not ready to receive data DR1 DR2 Function H L Communication is available L H Communica...

Page 146: ... DTR DSR is selected The signal is checked and data is transmitted only when the host is ready to receive data READY except for transmissions by GS ENQ DLE EOT or GS a 2 When XON XOFF control is selected Transmits data regardless of the status of this signal Conditions DIP SW Settings ON OFF 1 During the period from when power is turned on including resetting using the interface to when the printe...

Page 147: ...sing RS 485 Transmission data 8 bits no parity RS 485 Communication data format H indicates Printer transmission data SD1 SD2 Printer reception data RD1 RD2 Printer status Off line status DIP SW status ON OFF XON transmission When the printer goes on line after turning on the power or reset using the interface Transmission Transmission When the receive buffer is released from the buffer full state...

Page 148: ... used when the UART for RS 232 is connected to the RS 485 driver Printer reception data level Printer transmission data level RD1 RD2 Read data H L SD1 SD2 Send data H L L H L H Receiving data line is at the LOW level Receiving data line is at the HIGH level Sending data line is at the LOW level Sending data line is at the HIGH level ...

Page 149: ... 140 Main Circuit Board Parts Layout ...

Page 150: ... 141 RS 232 Serial Interface Circuit Board Parts Layout ...

Page 151: ... 142 IEEE 1284 Parallel Interface Circuit Board Parts Layout ...

Page 152: ...RS 485 Serial Interface Circuit Board Parts Layout 143 ...

Page 153: ... IC SOCKET R S T R24 R28 P G D2 D15 R52 Q34 A12 AD0 AD1 AD2 A0 A1 A2 A3 A4 A5 A6 A7 A15 AD3 AD4 AD5 AD6 AD7 A10 A11 A9 A8 A13 A14 RD A17 A16 A12 2 A7 3 A6 4 A5 5 A4 6 A3 7 A2 8 A1 9 A0 10 D0 11 D1 12 D2 13 GND 14 D3 15 D4 16 D5 17 D6 18 D7 19 CE 20 A10 21 OE 22 A11 23 A9 24 A8 25 A13 26 A14 27 VCC 28 A15 1 U8 A 0 7 GND GND PCE 2 4 A 5 V 2 4 I N G N D P G MCE 120nS FG 1 DKD 1P 2 DKD SW 3 24V 4 DKD ...

Page 154: ... V 2 C1 1 C1 3 R1O 12 R2O 9 T1I 11 T2I 10 V 6 U1 C2 C7 DSR SD RD DTR FG 1 SD SD1 2 RD SD2 3 RS RD1 4 RD2 5 DR INIT1 6 SG 7 DR1 8 DR2 9 CS1 10 CS2 11 12 13 14 15 16 17 18 19 ER 20 21 22 23 24 INIT2 25 SHELL 0 CN1 SG RTS TO HOST C3 DTR SD DSR RD 1 2 V SG RTS DTR SD RD 5V 5 V 5 V SG RTS SG DSR_RESET 25_RESET C5 R1 R21 Q1 RD SD DTR R T S 5V SG SG SG TP1 10K 10K 12V 12V R7 R3 10K 10K Q2 5 V 12V RTS 2 5...

Page 155: ...25 A13 37 P24 A12 36 P23 A11 35 P22 A10 34 P21 A9 33 P20 A8 32 P17 A7 31 P16 A6 30 P15 A5 29 P14 A4 28 P13 A3 27 P12 A2 26 P11 A1 25 P10 A0 24 RESET 23 U2 CEN5 CEN6 CEN7 1 2 3 4 5 6 R40 R42 R43 R48 C23 C26 R49 R51 5V 5V 5V C19 C18 Q5 R11 R50 C20 C21 C22 C24 C25 DD5V STB HOSTCLK 1 DATA1 2 DATA2 3 DATA3 4 DATA4 5 DATA5 6 DATA6 7 DATA7 8 DATA8 9 ACK PTRCLK 10 BUSY PTRBUSY 37 11 PE ACKDATREQ 26 12 SLC...

Page 156: ... 1 2 3 4 8 7 6 5 U1 R10 R5 CS1 CS1 CS2 CS2 DR1 DR2 RD1 RD2 SD1 SD2 5V 5V CTS CTS SD RD 5 V SG SG DR DR C5 R17 R16 R18 DK 1 1 DK S 2 PG 3 PG 4 24V 5 24V 6 PG 7 HOST_RTS 8 CTS 9 DET 10 RTS 11 CLKIN DTR 12 CLKREQ 13 SG 14 5V 15 DK 2 16 DK G 17 DK P 18 PG 19 24V 20 24V 21 PG 22 SG 23 SD 24 RD 25 RES 26 25_RESET 27 DSR_RESET 28 RESET 29 SG 30 CN2 5 V 5V SG SG SG CTS DR TO MAIN BOARD TP1 R15 R7 R14 R19 ...

Page 157: ... feed motor Adjustment roller RE 2 3 cutter M3 x 10 shaft holder Paper hold Adjustment roller shaft holder Paper hold roller shaft Paper feed roller assembly Paper hold spring Upper paper guide Base frame assembly RE 2 3 spring Paper hold roller Carriage motor assembly Carriage motor heat sink plate Sensor assembly Ribbon take up assembly Ribbon cassette Ribbon frame assembly CPS tite S P4 M3 x 8 ...

Page 158: ...r plate CPT B M3 x12 Spacer Lead wire ROM spacer ROM cover assembly CPS tite M3 x 6 CPS tite M3 x 6 Rubber foot Rubber foot CP O M3 x 6 PROM Near end detector Lower case Paper roll receive rollers I F circuit board assembly Connector plate Auto cutter plate spring Auto cutter fixing plate Auto cutter plate shaft RE 3 Auto cutter plate spring shaft assembly Auto cutter lock lever RE 2 3 RE 2 3 Auto...

Page 159: ... 150 Printer Mechanism Unit Lubrication Points Diagram 1 O 10 2 G 31 6 G 31 7 G 31 5 G 31 7 G 31 8 G 31 ...

Page 160: ... 151 Case Unit Lubrication Points Diagram 4 G 31 4 G 31 3 G 31 3 G 31 ...

Page 161: ...4 19063155 CONNECTOR 30 1 27MM TX25 30P LT H1 2019963 1 AE C N CN5 94870349 CONNECTOR 5 52147 0512 2014232 1 AE C N CN6 94870346 CONNECTOR 5 PIN 52147 0510 2005108 1 AD C N CN7 94870347 CONNECTOR 15 FF3 15 S15 2008619 1 AF C N CN8 94870345 CONNECTOR 4 2MM IL S 4P S2T2 EF 2003785 1 AD C N CN9 94870358 CONNECTOR 4 2MM IL S 4P S2T2 EF B 2021582 1 AB C N D11 D12 94870351 LED 3V 20MA 60MW SLR 342VR3F 2...

Page 162: ... RING RETAINING TYPE E 2 3 B150350111 1 AA X N 527 94870304 GUIDE PAPER UPPER 1026360 1 AJ C N 528 94870300 SHAFT PAPER HOLD ROLLER 1026356 1 AJ C N 529 94870301 ROLLER PAPER HOLD 1026357 1 AF C N 530 94870302 SPRING PAPER HOLD PLATE 1026358 1 AK B N 531 94870303 SPRING PAPER HOLD 1026359 2 AG B 532 19087657 SCREW M3X5 3X5 F ZN B300204111 1 AA X N 533 94870328 GEAR PAPER FEED REDUCTION 1032221 1 A...

Page 163: ... 154 EXPLODED DIAGRAM FOR TM U200B U210B NO 1 ...

Page 164: ... 155 EXPLODED DIAGRAM FOR TM U200B U200PB U210B U210PB NO 2 ...

Page 165: ...CASIO TECHNO CO LTD Overseas Service Division Nishi Shinjuku Kimuraya Bldg 1F 5 25 Nishi Shinjuku 7 Chome Shinjuku ku Tokyo 160 0023 Japan ...

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