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2.2.6 Over Voltage Protection Circuit

As described in 2.2.5, the power supply circuit of this 

unit not only uses the voltage regulator circuit to

stabilize the output voltage 

 and provide feedback to the switching circuit, but it also contains an over

voltage protection circuit to protect against malfunctions of the voltage regulator circuit.

Figure 2-18 shows the over voltage protection circuit.

If the voltage regulator circuit malfunctions and the output voltage 

 goes over the limit:

   

 + 

  =   4 0   [ V ] ,

then the photodiode in PC2 receives current. Consequently, the gate of the thyristor 

 on the receiver

side conducts to pass the base current of 

 

   

 

   

 off so that the Potential at 

reduces to O [V] and no voltage is induced in the secondary side winding T1-3. The power supply must

be switched off to reset the protection circuit.

 the same way, over voltage protection is 

 for the output 

 of the +5 

 regulator   

to Section 2.2.5.). When the 

 reaches 6 V or 

 the 

 

 is Performed.

1 4   T 2

o

 “

TY1

Q“

R7

I

C14

, D20

●

C20 z

22

3

Vo

 

.. . 

Figure 2-18. Over Voltage Protection Circuit

2-24

Summary of Contents for LQ-1060

Page 1: ...EPSON TERMINAL PRINTER L Q 8 6 0 1 0 6 0 TECHNICAL MANUAL ...

Page 2: ...ect to change without notice All efforts have been made to ensure the accuracy of the contents of this manual However should any errors be detected SEIKO EPSON would greatly appreciate being informed of them The above notwithstanding SEIKO EPSON can assume no responsibility for any errors in this manual or the consequences thereof Copyright 1989 by SEIKO EPSON CORPORATION Nagano Japan i ...

Page 3: ...S MANUAL DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS WARNING REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLTAGE LISTED ON THE SE RIAL NUMBER R...

Page 4: ...Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 The contents Provides a general product overview lists specifications and illustrates the main components of the printer Describes the theory of printer operation Discusses the options Includes a step by step guide for product disassembly assembly and adjustment Provides Epson approved techniques for troubleshooting Describes preventive m...

Page 5: ...REVISION TABLE REVISION DATE ISSUED I CHANGE DOCUMENT I I 1st issue I v ...

Page 6: ...G E N E R A L D E S C R I P T I O N CHAPTER 2 O P E R A T I N G P R I N C I P L E S CHAPTER 3 O P T I O N A L E Q U I P M E N T S CHAPTER 4 DISASSEMBLY ASSEMBLY AND ADJUSTMENT CHAPTER 5 TROUBLESHOOTING CHAPTER 6 MAINTENANCE APPENDIX vi ...

Page 7: ...l 21 SELF TEST OPERATION H H M fi mo H l 2222 HEXADECIMAL DUMP FUNCTION H Hu H M M H u M 1 2323 PRINTER INITIALIZATION H MM H M uu H H H ul 24 1 7 1 Hardware Initialization H H H M H HH H l 24 1 7 2 Software Initialization H u uH H H M H H M l 24 1 7 3 Default Values 1 24 BUZZER OPERATION AND ERROR CONDITIONS MH H H M 1 25 1 8 1 Buzzer Operation H o M H M H H H H HH M 1 25 1 8 2 Error Conditions H...

Page 8: ...erface Data Transmission Timing 1 13 Figure 1 8 36 Pin Printer Side tinnector c 0 1 13 Figure 1 9 RS 232Clnterface Handshaking 1 1 6 Figure 1 10 Serial Data Transmission Timing 1 17 Figure 1 11 Serial Interface Connector 1 17 Figure 1 12 Self Test Printing l 22 Figure 1 13 Hexadecimal Dump List s 1 23 Figure 1 14 LQ 860 1060 Component Locations 00 00 o o cc s 1 26 Figure 1 15 Model 5810 5860 Print...

Page 9: ...e l 11 Printing Mode l lo Table 1 12 Character Matrix and Character Size oH H co u u H ti M 1 12 Table 1 13 8 bit Parallel l F Connector Pin Assignments 1 1 4 Table l 14 Select Deselect Control ti ti M ti o l 15 Table l 15 Serial Interface Handshaking M M H M MCOCO oH o HM u1 16 Table l 16 Table l 17 Table l 18 Table l 19 Table l 20 Table l 21 Table l 22 Table l 23 Table l 24 RS 232CSerial l F Con...

Page 10: ... Color printing capability Push and optional pull tractor feeding Advanced paper handling AUtomatiC paper loadin9 ejectin9 function Tear off funCtiOn Printing of fanfold paper without removal of the cut sheet feeder option Low noise acoustics Optional interface for the EPSON 8100 series Optional low priced single bin and double bin cut sheet feeders which contains enveloPe feedin9 capability Figur...

Page 11: ...artridge black o 87763 Ribbon cartridge color o ff7764 Ribbon cartridge film o 7407 Multi font module o Table 1 2 Optional Interface Boards I No Name I 1 8143 I Newserial interface I 1 8145 IRS 232C current loopinterfacetypell I 8148 Intelligent serial interface 8149 Intelligent serial interface type II 8149M Intelligent serial interface type Ill 8161 IEEE 488 interface l Intelligent IEEE 488 inte...

Page 12: ...ll optional NOTES 1 When using friction feed Adjust the paper release lever at rear position Use the paper tension unit Do not use continuous paper Do not use a single sheet paper shorter than 182 mm or longer than 257 mm LQ 860 364 mm LQ 106O Do not perform any reverse paper feed operations within the top 8 5 mm and bottom 22 mm area of the paper Do not perform reverse feed beyond than 1 6 after ...

Page 13: ...the platen and the pull sprocket Precisely the horizontal position of the pull sprocket and push tractor Do not perform reverse feeding for more than 1 6 Do not perform reverse feeding after the paper end has been detected Paper Loading Directions Inserted from the rear side Line Spacing 1 6 or programmable min 1 360 Line Feed Speed See Table 1 3 Table 1 3 Line Feed Speeds 1 6 line spacing Feeding...

Page 14: ... 2 10 1 1 14 4 182 257 364 mm m i i 3 Printable area 3 TY I0 33 8 5 mm or I I I 7 2 14 3 182 364 mm 1 7 r ABC J ABC T XYZ 1 XYZ 1 0 53 13 5 mm or more L I Values in the parentheses apply to the LQ 106O Printing is possible for approximately 42 mm after the bottom edge of a page has been detected Thus the value 13 5 mm lowest print position is given for reference only Paper feed accuracy cannot be ...

Page 15: ...mm 15 to 16 width paper is used Figure 14 Fanfold Paper Printable Area Envelopes Size No 6 166 x 92 mm No 10 240 x 104 mm Quality Bond paper xerographic copier paper airmail paper Thickness 0 16 0 52 mm 0 0063 0 0197 NOTES Differences in thickness within printing area must be less than 0 25 mm 0 0098 Weight 12 24 lb 4 5 91 g m2 NOTES 1 Envelope printing is only available at normal temperature 2 Ke...

Page 16: ...Lever Adjustment See Figure 1 5 and l able 1 6 Table 1 6 Lever Adjustment Lever Position 0 06 0 1 1 Paper Thickness mm 2nd 3nd I 0 13 0 17 I 4th 0 1 8 0 5 5th 0 26 0 32 NOTES 1 2 u Figure 1 5 Head Adjustment Lever Positioning When printing density becomes lighter set the head adjustment lever one position lower When using thicker paper than shown in the above table set the head adjustment lever to...

Page 17: ...ectrical Specifications See Table 1 9 Table 1 9 Electrical Specifications 100 120 V Version 220 240 V Version Voltage V AC 108 132 198 264 Frequency Range Hz 49 5 60 5 Rating Current A 2 1 Insulation Resistance M ohm min Oitween AC line and chassis 10 Dielectric Strength V AC rms 1250 3750 1 minute between AC line and chassis Conditions Refer to Table 1 10 Table 1 10 Environmental Conditions I Sto...

Page 18: ...de ESC P 84C Printing Direction Bidirectional with logic seeking Input Data Buffer 6 K byte or none DIP SW 1 8 selectable Character Code 8 bits Character Set 96 ASCII 14 international and 1 Legal charactersets Family Roman No O Sansserif No 1 Font Roman 10 12 15 Proportional Sansserif 10 12 15 Proportional Draft 10 12 15 Printing quality Draft LQ Character pitch 10 12 15 CPI or Proportional Conden...

Page 19: ... 150 160 272 1 10 113 75 80 136 15 0 0 0 15 338 113 120 204 1 15 169 56 60 102 1 0 7 5 169 113 120 204 1 7 5 84 56 60 102 1 x x Ignored oporticmal o x o 8 6 64 Max 69 Max 117 20 150 Min 160 Min 272 1 4 3 32 Max 34 Max 59 10 75 Min 80 Min 136 1 x o 17 1 129 Max 137 Max 233 40 300 Min 320 Min 544 1 8 6 64 Max 69 Max 117 20 150 Min 160 Min 272 proportional o x o 12 8 96 Max 103 Max 175 Super 30 subsc...

Page 20: ...1 2 3 4 5 6 7 8 9 10 I I 12 13 14 15 16 7 18 19 2 0 21 22 23 24 Normal Character A s c e n d e r A r e a R I r G Ascender Area 15pitch H T i s P A 10 c E a 2 Descender Area Face Width al Superscript Character Pin Nos 17 to 24 are not used when superscript printing 2 L 3 E 4 F 5T 6 7s Eip 9 A 10 c II E 12 13 14 15 16 R A H T s P A c E Character Width CW J Figure 1 6 Character Subscript Character Pi...

Page 21: ... max 37X 23 360 2 6X 3 2 180 min 18X 23 360 1 0x 3 2 Q proportional condensed 360 180 360 Q proportional super subscropt max 28X 16 360 1 8x 2 3 160 min 12x 16 360 0 7X 2 3 Q proportional super subscript condensed 360 180 360 NOTES 1 HDD means the Horizontid dot density and the Unit shows the number of dots per inch 2 Face matrix and character size indicate the size of maximum characters and this ...

Page 22: ...el By STROB pulse By BUSY and ACKNLG either or both TTL compatible See Figure 1 7 57 30360 AMPHENOL or equivalent See Figure 1 8 Refer to Table 1 13 Refer to Table 1 14 NOTES Transmission time rising and falling time of evev w input signal must be less than 0 2 IAS Figure 1 7 8 bit Parallel Interface Data Transmission Timing 1 19 GNO Pair witn 1 2 20 GNO Pair w th2 3 21 GND Pair with 3 4 22 G 4D P...

Page 23: ...when ERROR signal is LOW 13 SLCT o Always HIGH Pulled up to 5V through 3 3 K ohms resistor 14 AUTOFEED XT I If this signal is LOW when the printer is initialized a line feed is automatically performed by input of CR code Auto LF 15 NC Not USed 16 GND Ground for twisted pair 17 Chassis GND Printer chassis ground 18 NC Not used 19 to 30 GND Ground for twisted pair 31 INIT 16 i Pulse width 50 US min ...

Page 24: ...LOW HIGH During Pulse output after Enable data entry entry Normal Process DC3 HIGH LOW HIGH During Pulse output after data entry entry NOTES 1 In Table 1 14 it is assumed that no ERROR status exists other than that attributable to the OFF LINE mode 2 Once the printer is deselected by the DC3 code the printer will not revert to the selected state until the DC1 code is input In the deselected state ...

Page 25: ...This indicates that the printer is not ready to receive data SPACE X ON DC1 11 H When the number of bytes remaining in the input buffer reaches 528 or more the signal level goes to SPACE or an X ON code is sent to the host computer This indi cates that the priter is ready to receive data DTR REV Signal I Eq M A R K 12V SPASE 12V 1 6Kbyte j28byte 256byte Obyte Input Buffer Vacant Area 1 1 1 1 X ON ...

Page 26: ...2 The word structure of serialclata is 1 start bit 8 data bits parity Odd Even or none 1 or more stop bits Figure 1 10 Serial Data Transmission Timing Error Detection Connector Connector Pin Assignments Parity errcr x is printed Overrun error Ignored Framing error Ignored D SUB 25 pin connector See Figure 1 11 Refer to Table 1 16 LCHASSI t4 NC 2 TxD 3 RXD i5 NC 16 NC 4 NC 17 NC 5 NC 6 Nc 16 NC 19 ...

Page 27: ...data 20 DTR o Indicates when printer is ready to receive data MARK level indictes printer is not ready to receive data 11 REV 2nd RTS o Same as DTR 3 RXD I Receive data 7 SIGNAL GND Signal Logic ground level 1 CHASSIS GND Printer chassis ground NOTE Direction of signal flow is as viewed from the printer f 1 18 ...

Page 28: ...1 18 ON 1 2 chacter set ON 1 3 ON 1 4 Code table select Graphic Italic OFF 1 5 Graphic print direction Uni d Bi d OFF 1 6 Super draft off On OFF 1 7 CSF mode Valid Invalid OFF 1 8 Input buffer None 6K byte OFF 1 Graphic print means follows a Bit image printing b Multi pass printing 30 dots graphics Orator Orator S font Double height character Double strike o Double overscore underline Violet Orang...

Page 29: ...le 1 20 OFF 2 4 OFF 2 5 Baud rate selecton See Table 1 21 OFF 2 6 OFF 2 7 Auto fear off mode Valid Invalid OFF 2 8 Auto LF Valid Invalid OFF Table 1 20 Interface Selection 2 3 2 4 Function 1 OFF OFF 8 bit Parallel ON OFF Serial Even parity OFF ON Serial Odd parity ON ON Serial None parity 1 Table 1 21 Baud Rate Selection OFF OFF 19 200 ON OFF 9 600 OFF ON 1 200 ON ON 300 q g 1 20 ...

Page 30: ... JI 256 512 4M 2M BIT IM BIT 512K 256K BIT MASK ROM ROM 3A CG1 J2 B4 5 5 J3 RD A16 RD 4M 2M BIT 1 M BIT 512K 256K BIT 256K BIT MASK ROM ROM 4A RAM CG2 J4 B4 5 5 5 J5 RD A16 RD RD J6 B1 B1 B2 WR SLCT IN inable SLCT IN disable J7 SLIN GND LQ 860 LQ 106O J8 Close Open J9 Open Open NOTE Bold indicates the factotw settings 1 21 ...

Page 31: ... J K LMN PQR oI234567B9 BCDEFGHIJKLMNopQRST olz3456789 ABcDEFGHIJKLMNOP9RSTL ol234567 9 A6CDEFGHIJKLMNOPQRSTUV n17745A7RQ 91aQ RCITFI C14T TKI MNnDC 2qTllVk High speed draft mode Ol23Zi56789 6BCDEFGHIJKL 0123456789 ABC0EFGHIJKLtIt 0123456789 iM3CDEFGHIJKLMN4 S j O123456789 A8COEffiHIJKLMN0 j t 01234567EW C f GHIJKLMN p c 0lZ5ASA78g ABCDEffil lJKLM A 012W T89 mDEffitilJK 6789 ABCDE FC H13KLMNOPQRS ...

Page 32: ...ches I Data Dump Mode 31 2E 31 20 46 45 41 54 55 52 45 53 OD 0 4 00 Ofl 1 1 FEATURES 54 68 65 20 4C 51 2D 38 35 30 2F 31 30 35 30 20 The LQ 850 1050 70 72 69 6E 74 65 72 73 20 61 72 65 20 6D 75 6C p r i n t e r s a r e m u l 74 69 66 75 6E 63 74 69 6F 6E 61 6C 2C 20 32 34 tifunctional 2 4 2D 70 69 6E 20 70 72 69 6E 74 68 65 61 64 2C 20 p i n p r i n t h e a d 69 6D 70 61 63 74 20 64 6F 74 2D OD 0 ...

Page 33: ...e printer receives command ESC via software When the printer is initialized in this way it performes the following actions Clears the print buffer Sets printer selections to their default values 1 7 3 Default Values The printer s default values are as follows Page Position Left and Right Margin Line Spacing Vertical Tab Position Horizontal Tab Position VFU Channel Family Number of Type Style Downl...

Page 34: ...epted the buzzer sounds for 0 1 seconds Refer to Section 1 9 4 for firther information concerning control panel settings 1 8 2 Error Conditions If any of the following errors occur the printer automatically enters the OFF LINE mode Carriage and color home positions are not detected at printer mechanism initialization Home position is detected during printing The OFF LINE switch is pressed causing ...

Page 35: ... main board MONPS MONPSE board power supply board 120V and 220 240V versions Control panel JUNPNL W board Figure 1 14 shows the LQ 860 1060 component locations MONPS MONPSE Board JUNMM Board M PI Fan Unit lodel 5810 inter Mechanism I Control Panel LQ 860 Model 5860 Printer Mechanism LQ 106O Figure 1 14 LQ 860 1060 Component Locations 1 26 ...

Page 36: ...anism Features The printer mechanism is composed of three stepper motorsused in carriage move paper feed and color select ribbon feed a 24 pin printhead five sensors home position paper end friction traCtOr platen gap and color position sensors and metal frames Model 5810 Model 5860 Figure 1 15 Model 5810 5860 Printer Mechanism 1 27 ...

Page 37: ...of form position for the currently loaded sheet Pressing the FORM FEED switch advances the paper forward continuously for as long as the switch is held down and pressing the LINE FEED switch moves the paper in reverse Moving the paper with these switches is called Top Of Form adjust After the paper has been adjusted in this way the printer uses that position as the loading position for each subseq...

Page 38: ...A1OAA 8B Memory management unit MMU IC o E05A24GA 5A bit parallel I F port expansion IC E05A02LA 2A Printhead data control IC Memory IC EP ROM 6A Used for program 256K bit MASK ROM 3A Used for character generator IM bit o PS RAM 5A 256K bit ST RAM 7A UK bit x 1 The data is held by the lithium battery while power is turned off Universal IC S17300A 1A Carriage motor driver IC MASK ROM C E05A02LA S17...

Page 39: ...the MONPS for 120 V AC operation and the MONPSE for 220 240 V operation The basic construction of the two board is the same each board contains a power switch fuses line filter circuit and switching regulator circuit Compactness of the circuitly is made possible by use of a DC to 13C converter Figure 1 17 MONPS Board 1 30 ...

Page 40: ...t refer to Section 1 9 1 2 for details LINE FEED Switch Pressing this switch within 0 5 seconds while the printer is in the OFF LINE state advances the paper one line at a time And pressing more than 0 5 seconds performs continuous feeding until this switch is released This switch is also used as the micro reverse adjust refer to Section 1 9 1 2 for details LOAD EJECT Switch Pressing this switch l...

Page 41: ...ED Green Lights when power is ON READY LED Green Lights when printer can receive the data PAPER OUT LED Red Lights when the paper is end ON LINE LED Green Lights in the ON LINE mode MULTI PART LED Orange Lights when the head adjustment lever is set for 4th or higher FONT DRAFT ROMAN SANS SERIF SLOT A SLOT B LEDs Orange These LEDs indicate the currently selected font If slots A and B contain fontmo...

Page 42: ...tion 2 20 2 2 5 35 V Voltage Regurator Circuit 2 23 2 2 6 Over Voltage Protection Circuit 2 24 2 2 7 5 V Switching Regulator Circuit 2 25 2 2 7 1 Activation 2 25 2 2 7 2 Voltage Regulator Circuit 2 25 2 2 7 3 Soff Start 2 26 2 2 8 12 V Half Wave Rec tifier Smoothing Circuit 2 27 2 3 CONTROL CIRCUIT BOARD JUNMM BOARD 2 28 2 3 1 Reset Circuit 2 29 2 3 1 1 Vx Drive System Pull up Voltage Supply Circu...

Page 43: ...cuit 2 54 2 3 5 Printhead Control and Drive Circuit 2 55 2 3 5 1 Relationship Between Paper Thickness and Print Mode 562 56 2 3 5 2 Relationship Between Printhead Drive Pulse Width and 35 V Line Voltage 2 57 2 3 6 CR Motor Control and Drive Circuit 2 58 2 3 6 1 Reference Voltage Generation Circuit 2 59 2 3 6 2 CR Motor Drive Circuit 2 60 2 3 6 3 CR Motor Control 2 63 2 3 7 PF Motor Control and Dri...

Page 44: ...Tractor Feeding 2 16 MONPS MONPSE Board Block Diagram 2 18 Input Filter Circuit 2 19 Rectifier Smoothing Surge Suppression Circuit 2 19 Surge Current 2 19 Main Switching Circuit 2 21 Waveforms at Primary and Secondary Side of T1 2 22 RCC System Switch ng Operation 2 22 35 V Voltage Regulator Circuit 2 23 Over Voltage Protection Circuit 2 24 5 V Switching Regulator Circuit 2 25 CMP Input and Output...

Page 45: ... 2 45 35 V Line Voltage Detection Circuit 2 46 35 V Line Protection 2 46 VR1 VR2 Reading Circuit 2 47 Printhead Temperat e Detection Circuit 2 48 Relationship Printhead Temperature and Printing Operation o 48 48 CR HP Sensor Circuit 2 50 CS Sensor Circuit 2 51 PG Sensor Circuit 2 52 PE Sensor Circuit 2 53 F T Sensor Circuit 2 54 Printhead Control Drive Circuit Block Diagram 2 55 Relationship Print...

Page 46: ...echanism Specifications 2 1o Color Select 2 1o CS Sensor Specifications 2 1o color Select Gear Train 2 l 1 Paper Feed Mechanism Specifications 2 13 PF Motor Specifications 2 13 PE Sensor Specifications 2 13 F T Sensor Specifications 2 13 Paper Feeding Method 2 14 Power Supply Voltages 2 17 Voltages and Applications 2 17 State of Module 2 32 ST RAM Conditions with Power On Off 2 33 8 Bit Parallel l...

Page 47: ...t Mode o oo o s oo 0 02 56 Relationship E05A24CiA Terminal States and CR Motor Coil Current 2 59 Relationship CR Motor Speed and Phase Switching System 2 64 Various PF Motor Control Relationships 2 67 Relationship PF Motor and Paper Feed Speeds 2 67 Paper Feed Speeds 2 67 Relationships PF Motc r Control Factors 2 68 Various CS RF Motor Control Relationships 2 70 Ribbon Feed Speeds 2 70 Relationshi...

Page 48: ...it board and control panel In this section the following abbreviations ate used CR Carriage CS Color select F T Friction tractor HP Home position PE Paper end PF Paper feed PG Platen gap RF Ribbon feed 2 1 1 Connector Descriptions Figure A 26 shows the connection between the JUNMM board and other units Table A 12 gives general descriptions of the connectors 2 1 ...

Page 49: ...educe manual paper handling A block diagram is shown in Figure 2 1 I 35V t Printing Mechanism ei 5v 35 Carriage Mechanism I I CR Motor Driver Circuit CR HP S sor I I I G I I 35 Color Select Ribbon Feed Mechanism I q I E I CSIRF Motor Driver Circuit 6 1 CS Sensor 1 1 1 I I 35 Paper Feed Mechanism I JUNMM Board I I I I I Printer Mechanism 7 Figure 2 1 Printer Mechanism Block Diagram ...

Page 50: ... the actuating plate to the iron core and the dot wire attached to the plate is pushed toward the platen The dot wire strikes the inked ribbon anci paper against the platen to print a dot on the paper When the coil is de energized the iron cclre loses it magnetic force so that the actuating plate returns to its initial position under the action of the actuating plate spring After having struck the...

Page 51: ...Resistance 29 ohmst2 ohms 25 C for one coil Drive Frequency 1 37 KHz Max Normal mode 1 02 KHz Max Copy mode Drive Mode Normal Paper thickness to 0 06mm StOS0 25mm copy Paper thichness tl 0 25mm Stl SO 32mm Thermal Sensor Thermistor Built in It is detected by the PG sensor Heter to I at le Z Z Table 2 2 PG Sensor Specifications I Item Description Remarks Type Mechanical switch Rated Voltage 5 VDC 5...

Page 52: ...2 3 4 4 The platen gap should be adjusted by changing the head adjustment lever position in accordance with the thickness of the paper being used When printing is performed on thick paper ex a post card set the head adjustment lever at the 4th or latter position T he adjust lever position is detected by the PG sensor when the lever is set at the 4th or latter position the PG sensor closes The cont...

Page 53: ...e unit is supported by the two carriage guide shafts The carriage is fixed to the timing belt on one side and is moved when the CR motor drives the timing belt Printing is accomplished by the combination of printhead and carriage mechanism operations The print start position is determined by the CR HP sensor when the mechanism is initialized Figure 2 4 Carriage Movement Mechanism 2 6 ...

Page 54: ...ifications Item Description Remarks Type I Four phase 200 pole HB type I C o i l Rsisitance I 2 8ohms 70 0 I 25 C for one coil Driving Frequency Driving Method 3600 PPS 2 2 phase excitation 2700 PPS 1600 PPS 1 2 phase excitation 1350 PPS 900 PPS 600 PPS Constant current chopper drive Table 2 5 CR HP Sensor Specifications 2 7 ...

Page 55: ...C W Color select mechanism When the CS RF motor rotates in the reverse direction C C W Ribbon feed mechanism Ribbon Feed Mechanism The ribbon feed mechanism consists of the ribbon feed mechanism on the carriage and ribbon cartridge Figure 2 11 shows the ribbon feed mechanism and Table 2 6 lists its specifications Table 2 6 Ribbon feed Mechanism Specifications ERk llD b windingDirec iOn Table 2 7 C...

Page 56: ...bon Refer to see Table 2 8 Table 2 8 Ribbon Feed Gear Train CS RF Motor Rotation I Gear Train I I c c w I CS RF motor pinion gear Ribbon fed transmission gear I Ribbon feed planetary gear Ribbon Drive gear The inked ribbon is a loop contained in the ci tiridgp case and is held between the ribbon feed and ribbon pressure rollers When the ribbon feed roller mounted on the ribbon drive gear is driven...

Page 57: ...ow 1 2 Three of sevsen colors are printed by mixing the three ribbon colors Color home ms ition Table 2 10 Color Select t Print ribbon Print color 1st time 2nd time Black Black Magenta Magenta Cyan Cyan Violet Magenta Cyan Yellow Yellow Orange Yellow Magenta Green Yellow Cyan x 1 When the black ribbcm cartridge is installed at printing then the printer prints characters as double strike NOTE The p...

Page 58: ... motor pinion gear Ribbon feed transmission gear A Ribbon feed Iplanetary gear Ribbon feed transmission gear B I CS reduction gear CS drive cam CS drive Lever The cartridge location spring pushes the ribbon cartridge to the CS drive lever via the cartridge location pin to lock the ribbon cartridge A color section of the color ribbon is selected by moving the CS RF motor to the color ribbon positio...

Page 59: ... Cyan a9enta yellow a When a color ribbon is used b When a black ribbon is used Ribbon Ribbon Feed Transmi Ribbon Feed Planetary ever Feed Transmission Gear am CSIRF M r II 1 B C M f c CS Reduction Gear Cross Section c Gear Train Figure 2 7 Color Select Mechanism 2 12 ...

Page 60: ...otor 1 Dirving Method PF motor Gear Refer to transmission Table 2 14 Paper Feeding per Step Sensor l 360r step IPESensor I F T S e n s o r Refer to Refer to Table 2 15 Table 2 16 Table 2 14 PF Motor Specifications Item Description Remarks Type I Four phase 96 pole HB type I stepper motor Drive Voltage 35 VDC 1 Oyo Hold Voltage 5 V c f 50 0 Coil Resistance 59 c hms t3 ohms 25 C for one coil Driving...

Page 61: ...inuous paper and friction feeding for cut sheet paper Refer to Table 2 17 Table 2 17 Paper Feeding Method Paper Release Lever State Rear Center Front Paper Cut sheet Continuous Push Tractor Invalid Valid Paper Feeding Friction Tractor ethod Standard Cut sheet Standard Pull Push PUII feeder push Paper Tension Unit o x o x x Optional 2 14 ...

Page 62: ...the tractor transmission gear as the paper release lever shift Therefore no power is conveyed to the push tractor Paper Release Lever rear side F aperTensionRollerGear i JT Or Platen Gear Paoer Feed Reduction Gear r pbg seLeverEdge F T Sensor open 4 0 PF Motor Pinion Gear i Side View b 3w ii Top View a Gear Arrangement a r T e n s o n er 7 s Paper Tension Support Roller Cut Sh et 6 t I o J 11 Pape...

Page 63: ... Paper Release Lever center Paper Tension Roller Gear lb 35 Paper Tension Roller I 7 Transmission Gear Platen Ge y pF Motor Pinion Gear Paper Feed Reduction Gear P o 0 i sidevi ew I I I I W h h I I 1 U I 1 I I I II h i l l I I I I la u m ii Top View a Gear Arrangement aperTensiOn 5ijii f us Pape Tension Front Cover Ribbon Mask Holder Y 7fl o 0 PE Sensor Platen F Paper Feed Roller CQ friction R Pap...

Page 64: ...nd MONPSE boards generate the DC voltages shown in Table 2 19 to supply the circuits and operate the mechanisms Refer to Figure A 29 and Figure A 30 in Appendix for the entire circuit of the MONPS and MONPSE boards Table 2 19 Vottages and Applications Power Voltage DC Application 35V GP o CR motor drive PF motor drive Printhead solenoid drive o CS RF motor drive Fan motor drive 5V GL o JUNMM board...

Page 65: ...he 35 V line including 5 V and the 12 V line and separately full wave rectified and smoothed The 5 V is generated by a switching regulator IC from the 35 VDC The 35 V line includes a voltage regulator circuit and an over voltage protection circuit The former regulates the 35 V line and the feed back to the main switching circuit and the latter protects against malfunctions of the voltage regulator...

Page 66: ...re 2 13 shows the surge current The largest surge current flows if the power supply FILTER CIRCUITo Y T2 TI TY I G IG 1 is turned on at the peak of the input voltage SURGE cURRENT I L MA N SWITCHING CIRCUIT v INPUT VOLTAGE t TO DB I POWER O N t Figure 2 12 Rectifier Smoothing Surge Suppression Circuit Figure 2 13 Surge Current The voltage across C6 increases after the pc wer is applied and the cur...

Page 67: ...s 1 11 8 and T9 10 represented by es and eG respectively eG releases current IG in the direction which causes the gate of the TRIAC Refer to 2 2 3 to conduct and eE releases base current 1 in the direction which causes Q1 to remain on The value of iE is constant as shown in the following formula T1l 8 T14 12 VI N VDZ VOIBE 134 R5 1 hFE Therefore when collector current IC increases as shown in Figu...

Page 68: ...cc o REV A N N n 1 cc b I al cc u co n4 2 1 Figure 2 14 Main Switching 2 21 ...

Page 69: ...A l A Icof Q1 o low 10 o h_P A Icof Q1 I__ _z _ E L I t on I t off I t I T ton t aff I P f k i L t Figure 2 16 RCC System Switching Figure 2 15 Waveforms at Primary and Operation Secondary Sides of T1 2 22 ...

Page 70: ...e shunt regulatorTL431 Q20 as a constant voltage element to keep the output voltage Vo at 35 V When Vo goes up cathode current k in Q20 increases so that the photo diode receives more current This action produces an increase in the collector current in the photo transistor side which becomes a constant voltage signal for Q4 and then the current from TII 18 to the base of QI is shorted to the O V l...

Page 71: ... limit VO VZD20 VZD21 40 V then the photodiode in PC2 receives current Consequently the gate of the thyristor SCR on the receiver side conducts to pass the base current of QI 1s to wound Q1 is cut off so that the Potential at T14 12 reduces to O V and no voltage is induced in the secondary side winding T1 3 The power supply must be switched off to reset the protection circuit In the same way over ...

Page 72: ...omparator CMP in IC20 Since the negative side of CMP still remains at O V at this time the CMP output goes HIGH Trf is turned on so that current flows from the emitter to the collector and the 5 V line turns on 2 2 7 2 Voltage Regulator Circuit Resistors R4 and R5 in IC20 regulate the 5 V output voltage L20 and C25 compose a differentiation circuit and prevent noise and abnormal oscillation The ou...

Page 73: ...pacitor Cl connected between the CMP negative side and GND increases the Tri output at time constant R3 x C2 so that the on time of Trl gradually becomes longer Refer to Figure 2 21 This circuit smoothes the rising of output voltage Vo and prevents overshoot HflfFff 7 VOLTAGE of C 1 v o COLLECTOR of TR 1 0 II I t i i l ON OFF Figure 2 21 Soft Start Timing 2 26 ...

Page 74: ... V and 12 V lines have their own half wave rectifier circuits The smoothing circuits cosist of capacitors C23 and C24 and include dummy resistors R27 and R28 which control the rise of voltage when the 12 V lines have no load as well as current limiting resistors R25 and R26 Refer to Figure 2 22 T1 D21 14 II 12V Figure 2 22 12 V Half Wave Rectifier Smoothing Circuit 2 27 ...

Page 75: ...he CPU so that the CPU circuit can be simplified and data can be processed at high speed RESET L x I d I I I II Tll JJ_4i2_ II Ilfi AO 1 BO 5 2J iiiq FI C G 3A IM BIT 4 EI PS RAM 5A 256K BIT RAM m n ST RAM 7A cJ B4K BIT 5E 2 I Iii S BIT PAFiALLEL l F PORT EX13WJSION G A llB m L m IDENTllY FUNT I MODULE L _I FO MODuLE W L _ J HOST 81D0 l F BOARD I I PRINTER MECHANISM T T PENsOR W CSIRF MOTOR DRIVER...

Page 76: ...et Circuit 2 3 1 1 Vx Drive System Pull up Voltage Supply Circuit Figure 2 25 shows the Vx voltage supply circ uit The Vx voltage is used to pull up the bus for the control signals transmitted to the power on reset circuit and drive circuits 5 t 7 t GP Figure 2 25 Vx Voltage Supply Circuit After the printer power is turned on the t35 V line reaches about 27 7 V and then Q5 and Q48 are turned on so...

Page 77: ...ger and the reset circuit in the MMU sets the ROUT signal high Figure 2 26 TRI The reset ROUT signal is sent to the IC S on the JUNMM board and to the outside When the power is switched off the voltage at C23 decreases and when VTHLD reaches VN the outPut switches from high to low and the reset circuit in the MMU sets the ROUT signal low D32 is a diode used to discharge C23 Vx THLD ROUT AT POWER O...

Page 78: ...oved the exclusive OR value of CAR1 and CAR2 changes from the reset default value and the DISC signal is set low by the rising edge of the sec ond pulse of the synchronized RDCLK signal Consequently the THLD voltage begins decreasing When the THLD voltage drops to VN the DISC signal goes high and then begins increasing When it rises to VP the ROUT signal goes high and the CPU restart Also Table 2 ...

Page 79: ...REV A Table 2 20 State of Module 1 1 I W stay E H H L H d O s H H 4 2 32 ...

Page 80: ...r normal conditions 5 V is applied to V of the ST RAM and the CPU starts read write operations When the power is turned off and the voltage on the 5 V line drops to about 3 3 V or less transistors Q42 and Q43 turn off and the voltage from the lithium battery BTI is applied to the v terminal of the ST RAM In this way the data in the ST RAM is maintained When the voltage from the lithium battery drc...

Page 81: ... the host computer does not transfer data until the BUSY signal changes from high to low Some host computers check both the BUSY and ACKNLG signals and others just check either the BUSY or ACKNLG signal After the host computer has confirmed that the BUSY signal is low it places data 8 bits per word in parallel on the data bus DO D7 and the printer reads the data at the falling edge of the STROBE p...

Page 82: ...E ERROR INIT 5 l RM1O 8 R65 72 5 77 t R76 r 7RM9 J7 SLCT IN mr 1 1 A R8 I AUTOFEEDXT 4 AA 5 SLCT E05A24GA llB AIC DINO 7 STB d RI WI BUSY ACK PE ERR I E I r CPU 4B b 5 I NTF 4 wMMU 8B v MMIOO 1 IBF It become low when STROBE signal changes from high to low x 2 ITO it become low whenINIT signal changes from high to low Figure 2 30 8 Bit Parellel Interface Circuit Figures 2 31 and 2 32 show the proce...

Page 83: ...s sent IBF goes low and CPU recognize the data is input CPU read the data 1 5 IBF goes high J CPU process the data I w ACKNLG goes high I I I o A Figure 2 31 8 Bit Parallel 7 Set default values on GI A llB I Set initial values on control terminals I f n f q Circuit Operation ...

Page 84: ...G A llB to change from IOW to high Figure 2 32 INIT Signal Proseccing Table 2 22 8 Bit Parallel l F Signals READY ERROR PE 1 H Disable L L H BUSY I PRINTE HOST acknowledge Gose high when ON LINE READY STROSE pulse is sent from host H OFF LINE NOT READY An error has oc curred for error conditions refer to Section 1 7 1 OFF LINE PAPER END Paper end has occured 2 37 ...

Page 85: ...Odd Even or none 1 or more stop bits Figure 2 33 Handshaking with DTR Signal 2 X ON X OFF protocol Sent over the TXD line Handshaking is accomplished by sending either X ON IIH or X OFF 13H over the TXD line to the host When the printer can accept data the printer sends an X ON code When the printer becomes busy it sends an X OFF code to the host computer The X OFF code is sent to the host when th...

Page 86: ...On the contrary data transmitted from the CPU is sent to the 75188 9A converted from TTL to EIA voltage levels and transmitted to the host computer The sequence for the serial interface operaticm is shown in Figure 2 38 and that for handshaking in Figure 2 37 12 12 D36 Lll D35 C27 C26 75188 9A I E05AZ4GA CN13 I I I I VCC G N D VCC 1 1 DTR 2 6 REV a BUSy 1 TxD 4 3 2 1 I I I 75189 1OA 9 I I I C 38 R...

Page 87: ...Y H DTR MARK Send X OFF 13H I t line data buffer vacant Figure 2 36 RS 232C Serial Interface Circuit Operation INITIALIZE 4 1A OPERATION P From BUSY CPU k st DATA M X OFF SPACE RXD MARK t INPUT BUFFER VACANT AREA 8K byte S256byte Z528 byte Figure 2 37 RS 232C Data Transmission Timing 2 40 ...

Page 88: ... sections will now be given Refer to Figure A 33 for the detailed circ uits on the JUNPNL board E05A24GA llB MMU 8B CPU 4B READY P13 IIN PORTO PORT1 PORT2 P60 P61 P62 P63 P66 P67 P26 P27 P74 P75 5 L ix I OWER READY 5 G z A f 3 R69 RW O N L S W ON LINEsw 25 7B PORT LDLED DTLED EXR4NSl CKLED ON DRl VER IC Rs4 R91 s m S D 2 R92 SD3 R66 S M r w 4J 438 5 F1 RESET CIRCUIT FANEL LED x8 Figure 2 38 Contro...

Page 89: ...a synchronous clock CKLED and trigger signal LDLED then outputs the data to the output ports 01 to 012 Output ports 01 to 08 are used to drive the LEDs and 09 to 012 are not used ON DTLED D12 Dll D1O D9 Da D7 D6 D5 D4 D3 D2 D1 OFF JJlnJLn u LDLED nt State Indicates a current value Im ictes a new t NOTE An LED turns on when the data bit is 1 Figure 2 39 MSM58371 Data Transfer Timing DTLED _ _ 1 I I...

Page 90: ...five input ports P67 P26 P27 P74 and P75 a matrix circuit is constructed using five control signals See Table 2 23 Table 2 23 Switch Status Reading CPU Control Signal Status Switches Read direction out direction in P60 P61 P62 P63 P66 P67 P26 P27 P74 P75 SBO SBI SB2 SB3 SB4 SDO SDI SD2 SD3 SD4 1 0 0 0 0 SW7 SW9 SWI 4 SW2 1 SW2 6 o 1 0 0 0 SW8 SW3 SW1 5 SW2 2 SW2 7 o 0 1 0 0 S W 1 O SW1 1 SW1 6 SW2...

Page 91: ...2 3 4 3 VR2 Reading Circuit Reads the correc AN3 tion value for bidirecticmal printing in the LQ mode Table 2 25 Sensors Name Positon Type Description CPU Signal Reference Reading Port Section Printhead Printhead Thermistor Detects the ANO 2 3 4 4 temperature printhead sensor temperature CR HP sensor Printer Photo Detects the P22 2 3 4 5 mechanism interrupter carriage home position CS sensor Print...

Page 92: ...reference voltage 12 5 b c R30 D30 AVREF 51 Vr f R29 C17 C16 0 5B CPU 4B R28 G A VG AVss 5 0 J 77 0 Ifef 1 Figure 2 41 Reference Voltage Supply Circuit Reference voltage AVREF for the A D converter is determined by the combination of resistors R28 and R29 connected in parallel with the TL431 AVREF Vref VCi 1 Iref x R29 4 75 V where Iref 2 PA v 2 5 0 V As shown by the above expression AVREF is regu...

Page 93: ...ring high duty cycle printing the printer is protected as follows 1 Printing is performed at normal speed 2 If the 35 V line voltage drops to 31 7 V or less the printing is stopped no load state 3 If the voltage is higher than 31 7 V the remainder of the printing line is printed at half speed M Corriage Return 35 a c 31 7 c1 Limit Value m m o 1 2 3 Process One Line Printing t Figure 2 43 35 V Line...

Page 94: ...ng in the LCI mode and VR2 is used for bidirectional printing in the Draft mode Vr f AN2 5 5 VR2 CPU 4B AN 3 5 4 AVS3 5 0 NOTE Refer to Section 4 3 3 1 for adjustment of VR1 and VR2 Relationship Figure 2 44 VR1 VR2 Reading Circuit Table 2 27 shows the relationship between the VR1 VR2 values and the terminal voltages at AN3 AN2 Table 2 27 Relationship VR1 VR2 Values and AN3 AN2 Voltages VR1 VR2 val...

Page 95: ...inter operates as shown in Figure 2 46 Normal Speed Printing Rest for Printing I Half Speed Printing I t 100 c Upper Limit Value al 90 C Lower Limit Value z s u u E 2 Figure 2 46 Relationship Printhead Temperature and Printing Operation If the printhead temperature exceeds the upper limit 1 OO C printing is automatically stopped In this state the ON LINE LED blinks When the printhead temperature d...

Page 96: ...hows the relationship between the upper lower limit values for printhead temperature and the voltage at the ANO terminal of the CPU Table 2 28 Relationship Printhead Temperature and ANO Voltage npe oc NOTermi tige v 2 49 ...

Page 97: ...iage CARRIAGE FLAG 11 CN1O r 5 1 1 1A R49 IP 3 IY R42 R35 38 IY P22 Kti 2 L __ __ _ _ CPU 4B Figure 2 47 CR HP Sensor Circuit Table 2 29 shows the relaticmship between the carriage flag and the voltage at the P22 terminal of the CPU Table 2 29 Relationship Flag and P22 Voltage I Carriage Flag Position I P22 Terminal Voltage V 2 50 ...

Page 98: ... and each color ribbon section cyan magenta and yellow of the color ribbon CS DRIVE CAM FLAG CPU 4B Figure 2 48 CS Sensor Circuit Table 2 30 shows the relationship between the CS drive cam flag and the voltage at the P23 terminal of the CPU Table 2 30 Relationship Flag and P23 Voltage CS Drive Cam Flag Position P23 Terminal Voltage V Flag 5 I Slit o I 2 51 ...

Page 99: ...and selects either normal or COPY mode at printing 5 1 F G I sO L_L Figure 2 49 PG Sensor Circuit Table 2 31 shows the relationship between the head adjustment lever position and the voltage at the P37 terminal of the CPU Table 2 31 Relationship Head Adjustment Lever Position and P37 Voltage 1 Head Adjustment Lever Position P37 Terminal Voltage V 1 1 3 5 I 1 4 8 0 2 52 ...

Page 100: ...e printer or not CN1l R43 1 I R36 37 P21 4 PE I I A I Figure 2 50 PE Sensor Circuit Table 2 32 shows the relationship between the paper state and the voltage at the P21 terminal of the CPU Table 2 32 Relationship Paper State and P21 Voltage Paper State P21 Terminal Voltage V Loading Paper exists 5 Ejecting Paper out o 2 53 ...

Page 101: ...e printer mechanism CN15 R79 f R37 59 35 CPU 4B FIT I 7 7 I Figure 2 51 F T Sensor Circuit Table 2 33 shows the relationship between the paper release lever position and signals at the CPU port P35 Table 2 33 Relationship Paper Release Lever Position and P35 Voltage Paper Release Lever Position P35 CPU Terminal Voltage V I Friction 5 Tractor o s 2 54 ...

Page 102: ...o prevent the printhead coil from burning and also monitors platen gap depend on the head adjustment lever position and 35 V line voltage in order to apply the correct print energy to the printhead coil in accordance with the paper thickness Refer to Appendix A 1 I 5 for the details of the E05A02LA f J PRINTHEAD TEMPERATURE I P37 PG SENSOR 1 HEAD ADJUSTMENT 4 CIRCUIT I LEVER L 35 PRINTHEAD ANO 4 T...

Page 103: ...24 dot CRT graphics II 3 1300 210 240 8 dot double density 1350 quadruple density 24 dot double density 4 1350 210 2160 LQ 24 dot triple density 900 copy 5 675 230 90 Normal O copy mode 1800 6 900 230 120 Normal 1 copy mode 1800 7 675 230 180 Normal 2 copy mode 900 8 900 230 2 40 Normal 3 copy mode 900 9 900 230 360 Normal 4 24 dot quadruple density 600 copy mode x 1 including half dots V hen numb...

Page 104: ...the printhead coil constant the drive pulse width of the HPW signal see Figure 2 54 is controlled by the CPU internal clock depending on the 35 V line voltage al Mode Head adjustment lever position Mode Head adjustment lever position 4 I 31 5 3 5 38 5 VI Powe g pldO_imits 35V Line voltage Figure 2 53 Relationship Printhead Drive Pulse Width and 35 V Line Voltage HPW HDn 1 Gn 24 1 L Collector outpu...

Page 105: ...output from the CF U is sent to the constant current drive IC 1A In order to drive the carriage motor at constant speed the IC inputs the reference voltage which corresponds to the motor speed The reference voltage is controlled by the CPU via the gate array IC lIB for extended ports 35 I J l I 1 L_ 0 J 1A BUFFER 16 CR CR MOTOR Poo MOTOR I A DRIVER 1A CPU 4B ID P 3 PHASE PULSES SURGE VOLTAGE ABSOR...

Page 106: ...nation of R5 R6 R7 and R8 so thi t the current limiting value for the current flowing to a coil of the CR motor varies The current limit is raised as the carriage speed increases by changing the voltage applied to the RX terminal 5 t E05A24GA llB ti Fii32 Plo Pll S17300A x 1A P12 i GP Figure 2 56 Reference Voltage Generation Circuit Table 2 35 Relationship E05A24GA Terminal States and CR Motor Coi...

Page 107: ... The 35 V power supply voltage is applied intermittently to the CR motor coil from COMAB and COMCD so that a mean voltage is applied to the CR motor cclil which keeps the CR motor current constant Refer to Appendix A 1 1 8 for details of the S17300A CPU SURGE VC LTAGE R F l GP SURGE VOLTJ E r f l RBINGc Rcu T 1 1 I D1 COMAB 5 5 7 9 11 7 COMCD I SURGE VOLTAGE DCD1 DAB1 w cc DD1 4 DA1 DB1 bL k 4 t t...

Page 108: ...REV A POO 4B Pin 62 5 V DIV OA 1A Pin 5 50 V DIV RSA 1A Pin 3 1 V DIV 0 5 ms DIV NOTE In the Draft normal self test mode Figure 2 58 CR Motor Drive Circuit Signal Timing 2 61 ...

Page 109: ...e wave which is used as the reference for chopper type driving Pulse Width Modulation control Current Detection Resistors R96 and R2 Voltage is induced across the current detection resistor in proportion to the current that flows to the CR motor coil This voltage is input to the plus terminal of CMP1 CMP2 Reference Voltage Generation Circuit The current applied to the CR motor coil is determined b...

Page 110: ...system Figure 2 59 shows the CR motor phase switching timing Table 2 36 shows the relationship between the CR motor speed and the phase switching system 1A ON OFF IB ON S17300A OFF 1A ON Ic OFF ID N OFF Step S17300A 1A Rotat ion t I I I I I I I r 1 I 1 I I 1 1 I 1 I I I I I 1 1 1 Z3 415 6 7 8 1 C c w C w Carriage moves left to right a 2 2 Phase Excitation IB ON OFF ON Ic OFF ID ON OFF Steo f otat ...

Page 111: ...2 2 2 Carriage Speed PPS Cycle s step CR Motor Constant Speed Coil Current Deceleration A COiIl I Acceleration NOTE The carriage speed ar 3600 2700 1800 1350 900 600 278 370 556 741 1111 1667 0 8 0 8 0 6 0 6 0 6 0 6 0 15 1 2 1 2 0 8 0 6 0 6 0 6 cycle in the 1 2 phase switching system are converted to those in the 2 2 phase switching system 2 64 ...

Page 112: ...2 2 phase switching When the speed is 3 4 or 5 the carriage is decelerated for 48 steps using 1 2 phase switching 4 High Speed Skip constant speed high speed skip When spaces 20H continue for 9 characters or more during text printing IOCPI high speed skipping will be performed This function is shown in Figure 2 61 a and is used to shorten the printing time a Acceleration control 2 2 phase switchin...

Page 113: ...ge min 8CH I 1 Non printable Area min 9CH a Constant Speed High Speed Skip Speed O stop I l High Spaad Skip Acceleration Area 5CH High Speed Skip Constant Spaed Area min ICH m High Speed Skip Deceleration Aree 5CH 4 High Speed Skip Control Range min IICH m b Stop High Speed Skip Figure 2 61 High Speed Skip ntable 4 4rea y ...

Page 114: ...1 1 1 Holding 0 08 MAX 25 360 Not performed Driving 0 95 MAX Refer to Tables 25 360 Performed 2 38 and 2 39 Table 2 38 Relationship PF Motor and Paper Feed Speeds PF Motor Speed PPS 1300 1200 1100 Cycle us stepl 769 833 909 Paper Feed Speed IIPS 3 6 3 3 3 0 Table 2 39 Paper Feed Speeds Feeding Method One Line Continuous Mode Normal copy Normal copy Cut Sheet PPS 1300 1100 1300 1300 Continuous Pape...

Page 115: ...or control factors P14 E05A24GA IIB P20 P21 P22 P23 5 35 5 4 63 R78 I 6 I COMCD I I 5 COMAB ZD9 I R53 30 ZD1O 31 R54 ZD1l 32 R55 ZD12 33 R56 I t GP Figure 2 62 PF Motor Drive Circuit P20 llB Pin 30 5 V DIV Q38 Collector 50 V DIV 2 ms DIV NOTE Tractor feed at form feed Figure 2 63 PF Motor Drive Circuit Signal Timing Table 2 40 Relationships PF Motor Control Factors PF motor E05A24GA 11 B P14 Appli...

Page 116: ...hases are controlled by E05A24GA 11 B terminals P20 to P23 2 2 phase switching is used for this motor Figure 2 64 shows the PF motor phase switching timing E05A24GA llB Step I 1 1 1 1 2 3 4 P20 I L___ Rotation C c w C w Paper feed forward direction Figure 2 64 PF Motor Phase Switching Timing 2 69 ...

Page 117: ...the CS RF motor Table 2 41 shows relationships between the various CS RF motor controls Table 2 41 Various CS RF Motor Control Relationships CS RF Motor Function CS RF Motor Phase Switching Rotation Speed PPS System c w Color select 500 2 2 c c w Ribbon feed Refer to Table 2 42 1 2 2 Table 2 42 Ribbon Feed Speeds Normal Mode Copy Mode Speed Down CR Speed No Ribbon Feed CR Speed No Ribbon Feed Ribb...

Page 118: ...s the relationships between various CS RF motor control factors 5 35 4 CPU 4B P33 P04 P05 P06 P07 J t GP Figure 2 65 CS RF Motor Drive Circuit P04 46 Pin 2 5VIDIV Q24 Collector 50VIDIV 5ms DIV NOTE draft normal self test at ribbon feed Figure 2 66 CS RF Motor Drive Circuit signal Timing Table 2 43 Relationships CS RF Motor Control Factors CS RF Motor CPU 4B P33 Applied Voltage V State High 5 Holdi...

Page 119: ... phase stitchings are used for this motor Figure 2 67 shows the CS RF motor phase switching timing ON P04 OFF P05 N CPU 4B OFF ON 0 6 O F F Step Step I I I 1 1 2 3 4 Rotation C W Color select a 2 2 Phase Excitation I I I I I II I I II I I I I I I I I I I 1 2 3 4 5 6 7 8 1 C C W Ribbon feed b 1 2 Phase Excitation Figure 2 67 CS RF Motor Phase Switching Timing 2 72 ...

Page 120: ... 3 11 Figure 3 12 Figure 3 13 Specifications 3 8 CSF Operating Principles 3 11 3 4 2 1 Paper Path and Gear Train H M uou H uu H 3 12 3 4 2 2 Bin Switch Operation ti mm u u ti 3 14 Disassembly and Assembly 3 16 Preventive Maintenance 3 18 3 4 4 1 Cleaning 3 18 LIST OF FIGURES LQ 860 1060 with Pull Tractor Unit 3 4 Pul Sprocket Feeding Gear Arrangement and Paper Path 3 5 Pu h Pull Feeding Gear Arran...

Page 121: ... 4 Bit Rate Selection 3 3 Table 3 5 8143 Handshaking Control 3 3 Table 3 6 Dimensions and Weight fi fi tioo tioo m 9 9 Table 3 7 Size Paper Thickness Paper Weigh4 and Angular Deviation 3 10 Tabie 3 8 CSFMode Setting with DIP SW H H H U ti ti t3m M 3 ll Table 3 9 Repair Tools V V U H u H HH H u 3 16 Table 3 10 CSF Maintenance Tools 3 18 i s ii ...

Page 122: ... I 81 72M 128K 128 K byte buffer parallel interface Buffer Size Flag Control X O N OFF Max Bit Rates Control BPS RS 232C 8 1 4 3 None o 0 19200 8 145 2K o x 9600 8 148 2K 8K o 0 19200 Current Loop 8 149 32K o 0 19200 8 149M 128K o 0 19200 Buffer Size Function Listen Only Address Operation Operation EEE 488 816 1 None L x o o GP IB 8 165 2K 8K AH L DC o 0 O Available X Not available x Refer to sect...

Page 123: ... interface cable if connected should be disconnected before using the 8143 board because parallel interface input is used to read jumper settings and DIP switch status Jumper Settings Table 3 2 shows the 8143 interface jumper settings Table 3 2 8143 Jumper Settings 1 Function J1 I ON TTY TXD is pulled up to 12V through 470 ohm resistor J2 ON TTY TXD RET is connected to signal ground J3 ON TTY RXD ...

Page 124: ...75 ON ON ON ON 1 800 OFF ON ON ON 110 ON O N ON OFF 2 400 OFF ON ON OFF 134 5 ON ON OF ON 4 800 OFF ON OFF ON 150 ON ON OFF OFF 9 600 O F ON OFF OFF 2clo ON O F F O N ON 19 200 OFF OFF ON ON 300 ON OFF ON OFF 19 200 OFF OFF ON OFF 600 ON OFF OFF ON 19 200 OFF OFF OFF ON 1 200 ON OFF OFF OFF 19 200 OFF OFF OFF OFF NOTE In the current looP operation normal data transfer cannot be guaranteed at a bit...

Page 125: ... the LQ 860 and LQ 106 1 PuII sproCkd feeding and push PUll feedin9 are possible by mounting the Pull tractor unit ins ad of the PaPer n3 1 h0ws the exterior views of the LQ 860 1060 with pull tractor unit LQ4315Q with C8W071 f LQ 1060 with C8OO1O1 Figure 3 I LQ 860 1060 with Pull Tractor Unit 3 4 ...

Page 126: ...er H Ribbon aper Feed Reduction Gear Feed Motor Pinion Gear Platen Gear Figure 3 2 Pull Sprocket Feeding 3 3 1 2 Push Pull Feed Operation Paper Feed Roller release Gear Arrangement and Paper Path Figure 3 3 shows the gear arrangement and paper path used with push pull sproket feeding Sproket Continuous paper Sproket Transmission Gear Paper Holding Roller Ribbon Mask Holder flH d J 7 i on Platen Ge...

Page 127: ...e sprocket frame L Step 5 Disengage the sprocket holding lever Step 6 Remove the E ring RE 5 from the sprocket shaft Step 7 Remove sprocket assembly L paper guide roller and sprocket assembly R Sprocket Paper Holding Lever Platen Shaft Holder Sproket Mounting A A Plate L i RE 5 _ RE 2 3 pri L S Sprocket Holding Lever Figure 3 4 Sproket Assembly Removal ASSEMBLY POINT Attach each sprocket wheel to ...

Page 128: ... the following features Can handle cut sheets and envelopes in the same manner as fanfold paper Can use fanfold paper without dismounting the cut sheet feeder Allows user to load a sheet by control panel operation Requires no electrical connection to and from the printer Is easy to mount onto or dismount from the printer Figure 3 6 shows the exterior views of the cut sheet feeders C806151 a Single...

Page 129: ...the top center of a printed character with respect to the top of the paper Within t 1 mm NOTES 1 The value is guaranteed only for the cut sheet of which weight is about 64 to 82 g mm 2 2 Envelopes within 2 mm Skew accuracy difference between the right and left top of page positions 0 3 Equivalent to f 1 1 mm when a A4 paper is used lengthwise NOTES 1 The above value is guaranteed only for the cut ...

Page 130: ...ons and Weight CSF Width mm Depth mm Height mm Weight Kg C806141 384 440 408 Approx 2 5 C806151 364 548 408 Approx 3 8 C806181 525 440 408 Approx 3 2 C806191 525 548 408 Approx 4 8 NOTE Dimensions are the measured values with the CSF being mounted on the printer 3 9 ...

Page 131: ...gth Thickness Paper Angular CSF Type mm mm mm Weight Deviation 9 mm21 mm Cut sheet 182 257 210 364 0 07 0 10 6 4 8 2 C806141 0 5 MAX Envelope 166 241 92 104 0 16 0 52 12 24 lb 1 0 MAX Cut sheet 182 257 210 364 C806151 0 07 0 10 6 4 8 2 0 5 MAX Envelope 2 166 241 92 104 0 16 0 52 12 24 lb 1 0 MAX Cut sheet 182 364 210 364 0 07 0 10 6 4 8 2 C806181 0 5 MAX Envelope 166 241 92 104 0 16 0 52 12 24 lb ...

Page 132: ... 3 8 CSF Mode Setting with DIP SW DIP SW Fubction ON OFF 2 8 Cut sheet feeder mode ON OFF Software Setting The cut sheet feeder can be controlled from the host computer by using the following software commands x 1 only when the ESC P protocol is used Command ESC EM Format CHR 27 CHR 25 n Where n Cancels the CSF mode n 1 specifies bin 1 n 2 Specifies bin 2 n 4 Specifies the CSF mode n R Ejects a sh...

Page 133: ... following operation is required to make the printer handle the fan fold paper Position the paper release lever at the center Turn the paper switch cover downward and turn the continuous paper guide plate upward Stacker Bin 1 Bin 2 I r m 1 Cut Sheet Paper Continuous Paper Paper Feed Roller 1 Only for the Continuous Paper Guide Plate 7 Paper Switch Cover II 1 1 Tear Off Position 1 7 1 0 r ii p o F ...

Page 134: ...e switch gear is in the release state and cancels the power conveyed from the paper ejecting gear Therefore the cut sheet feeder does not perform paper loading but paper ejection Drive Gear D Drive Gear Paper Loading Drive Gear Paper Loading Gear Paper sion Driv Paper Platen Transmiss Gear Select Cam S xl Only for the double bin C S F Figure 3 8 Gear Train 3 13 ...

Page 135: ...selected bin is illustrated in Figures 3 9 and 3 10 Bin 1 or 2 is selected depending on the number of steps for driving the paper feed motor in the reverse direction at Step 1 NOTE Bin selection for the single bin CSF is performed in the same way as bin 1 selection for the double bin CSF START Platen Rotates with platen gear STEP 1 STEP 2 Q o Rotation Forward Reverse Figure 3 9 Bin 1 Selection 3 1...

Page 136: ...REV A START Platen Rotates with platen gear STEP 1 STEP 2 4 0 0 STEP 3 o 0 q Rotation Forward Reverse Figure 3 10 Bin 2 Selection 3 15 ...

Page 137: ...arting disassembly DO not allow oil and grease to smear the paper path If they adhere to the paper path wipe off using alcohol i Step 1 Remove the center supports hopper paper stands and stacker stands Stacker Stand Center Support Stand Left Side Cover Figure 3 11 Side Cover Removal Step 2 Remove the right and left side covers by pulling out the seven tabs for each side cover Step 3 Take off the E...

Page 138: ... loading roller both right and left rolers must be replaced at the same time ASEMBLY POINT When installing the paper loading roller be sure to verify the direction of the roller on its surface Refer to Figure 3 13 Before fixing the paper support shaft holders confirm that the projections of the right and left paper supports are inserted into the groove of the rear frame Refer to Figure 3 13 3 17 ...

Page 139: ... of paper Table 3 10 shows cut sheet feeder maintenance tools Table 3 10 CSF Maintenance Tools Designation Availability Part No Cleaning brush o B741 600100 Brush No 1 0 B741 400200 Brush No 2 0 B741 400100 0 Commercially available tool 3 4 4 1 Cleaning Brush off all paper dust Check the surface of the paper loading rollers and the paper ejecting rollers NOTE If one of the paper loading rollers is...

Page 140: ...val H u H uc HH c4 18 4 2 4 8 Paper Feed Motor Removal ititi u ti n o o ti 4 19 4 2 4 9 Friction Tractor Sensor Removal 4 20 4 2 4 10 4 2 4 11 4 2 4 12 4 2 4 13 4 2 4 14 4 2 4 15 4 2 4 16 4 2 4 17 4 2 4 18 4 2 4 19 4 2 4 20 Paper End Sensor Removal H H H MHS M M 0 U 4 21 Platen Unit Removal 4 22 Color Select Sensor Removal S S 4 23 Color Select Ribbon Feed Motor Removal M M OHOUHOM4M2424 Paper Rel...

Page 141: ...l Printer Mechanism Removal H wHux H H H M 4 12 Ground Plates Removal u H u H u HH H u4 12 Printhead Removal ou ti tiH ti tiH fi 4 4 13 Disconnecting Head Cables H HH H tvum vu ti 4 l3 Color Select Cable Board Removal ti ti MH mo H 4 14 Head Cables Fand R and Color Select Cable Removal bottom view 4 14 Carriage Motor Removal 4 15 Timing Belt Removal top view 4 16 Timing Belt Removal bottom view H ...

Page 142: ...eed Roller Unit Removal n ti ti ti o H M ti M H 3131 Tractor Assembly left Removal 4 32 Tractor Assembly Phases s 4 32 Paper Tension Roller Shaft Assembly Removal 4 33 Ribbon Mask Holder Removal 4 34 Platen Gap Parallelism Adjustment 4 35 Platen Gap Adjustment s 4 37 Carriage Guide Shaft B Eccentric 4 38 Platen Gap 4 38 Paper Feed Motor Pinion Gear Backlash Adjustment 4 39 Print Position Alignment...

Page 143: ...1OOO1OO E ring holder 2 5 o 6740900400 E ring holder 3 o B740800500 E ring holder 4 o B740800600 E ring holder 5 o B740800700 Alcohol o Electric soldering iron o B740200100 Brush No 1 0 B741400200 Brush No 2 0 B7414OO1OO Creaning brush o B741600100 O Commercially available product E EPSON exclusive tool Table 4 2 Measuring Instruments Designation Specification Necessary Convenient Muitimeter o Osc...

Page 144: ...arts found on the LQ 880 1080 Sheet Guide I heetGuidecover247 2 A rin er covex a nK ob 7 Option Board Cover Control Panel Paper Release Lever paper T e n s i o n U n i t I Push Tractor Unit I Power Switch Figure 4 1 LQ 860 1060 Parts 4 2 ...

Page 145: ...r 2 reattach the two transport locking brackets w rt Locking Brakets Figure 4 2 Transport Locking Brackets Installation 4 Repack the printer using the original box and packing materials Also before disassemble or checking the printer remove the protective materials described above by reversing the sequence used for packing procedures After printer disassembly assembly and adjustment be sure to per...

Page 146: ...washer CPS P CTPS P Cross Pan head S tight with Plain washer CTB 0 Cross Truss head B tight with Outside toothed washer HNO Hexagon Nut with Outside toothed lock washer RE Retaining E ring Pw Plain Washer LS Leaf Spring name Table 4 5 illustrates the relationship between a screw s physical characteristics and its abbreviated part Table 4 5 Screw Forms and Abbreviated Part Names Heed Body Waeher aa...

Page 147: ...ave been omitted The sequence of this disassembly in this section is grouped into three parts 1 removal of the upper case 2 removal of the push tractor unit 3 removal of the circuit boards and 4 disassembly of the printer mechanism This sequence is shown in Figure 4 3 4 2 2 4 7 e 4 2 3 3 4 1o Push Tractor Unit Removal Fan Unit Removal Figure 4 3 Printer Disassembly Procedures 4 5 ...

Page 148: ...l panel then remove the control panel from the upper case Step 3 Detach the upper case by pressing n on the two retaining tabs inside the front of the printer Step 4 Pass the control panel through the hole in the upper case then remove the upper case Step 5 Disconnect CN16 on the JUNMM board then remove the control panel 1 I __ L Ta CB M4x25 Tab Figure 4 4 Upper Case Removal Tab Figure 4 5 Control...

Page 149: ... 1 Remove the upper case Refer to Section 4 2 1 Step 2 Position the paper release lever at the its front setting Step 3 Remove the two CBS 0 M3x6 screws securing the push tractor to the printer mechanism Step 4 Remove the push tractor unit by pushing it to the back CBS 0 M3x6 A a Right Side View b Left Side View Figure 4 6 Push Tractor unit Removal 4 7 ...

Page 150: ... Section 4 2 2 Step 3 Disconnect connectors CN5 and CN9 which connect the MONPS MONPSE board Step 4 Disconnect connectors CN4 CN6 CN7 CN8 CN1O CN1l CN12 CN13 CN14 and CN15 which connect the printer mechanism Step 5 Remove the shield plate at the back of the lower case Step 6 Remove the two CBS 0 M3x6 and three CCB M3x1O screws securing the JUNMM board Step 7 Remove the JUNMM board by lifting the b...

Page 151: ...d down on a conductive surface nor let any metal chips fall on to the board It is very dangerous to allow the lithium battery to short because it could burst Danger of explosion if the battery is incorrectly replaced Replace only with same or equivalent type recommended by Seiko Epson Corp Discard used batteries according to goverment s safety instruction 4 9 ...

Page 152: ...on the MONPS MONPSE board then remove the fan unit Refer to Figure 4 Io Step 3 Open the bent tab then separate the fan motor from the fan adapter Fan Motor I Fan Adaptor Tab Figure 4 9 Fan Unit Removal ASSEMBLY POINT When connecting the fan motor to the fan adapter confirm that the cable runs as shown in Figure 4 9 4 1o ...

Page 153: ...MM board and the CN2 which connect the fan unit Step 5 Remove the two CBB M3x12 and two CBS 0 M3x8 screws securing to lower case Step 6 Remove the CBS 0 M4x8 screw with the fixing ground which secures the AC ground wire Step 7 Remove the MONPS MONPSE board along with the power switch and the AC cable 120V version or AC inlet 220 240V version Power Code Power Switch CBS 0 M4x8 Fan Unit CBB M3x12 I ...

Page 154: ...m the JUNMM board Refer to Figure 4 7 Step 5 For the LQ 860 remove the three screws or for the LQ 106O remove the four screws CBS 0 M3x6 which attach the ground plates to base frame Step 6 For the LQ 860 remove the four screws or for the LQ 106O remove the five screws CBB P M4x25 securing the printer mechanism to the lower case Step 7 Remove the printer mechanism PW 4 3XIX4 CBS 0 M3x6 CBB P M4x25 ...

Page 155: ...the right and remove from the carriage Step 5 Disconnect the two head cables F and R from the connectors at the printhead Head Lock Lever Head Cable Carriage Pri thead Figure 4 13 Printhead Removal Board inthead Head Cable R Head Cable F 4 l lead Cable Connector Figure 4 14 Disconnecting Head Cables WARNING o When disconnecting or connecting the head cable be sure to hold the head cable connector ...

Page 156: ... rear of the base frame then detach the cables from the base frame Press the two tabs for the head cable holder at the bottom of the base frame and remove the head cable holder Remove the head cables F and R and Color select cable from the base frame Color Select Ribbon Feed Motor Connector co ors ectca ectsensorconn tor Tab Color Select Cable Board Tab A a Top View b Bottom View Figure 4 15 Color...

Page 157: ...e frame See Figure 4 12 Step 3 Remove the belt tension spring Step 4 Remove the four CBS 0 M3x6 screws securing the carriage motor to the base frame Step 5 Remove the carriage motor CBS 0 M3x6 Carriage Motor Beit Tension Spring Figure 4 17 Carriage ASSEMBY POINT When binding the lead wires with the wire clamp attach Motor Removal the wire clamp around the protective tube 4 15 ...

Page 158: ...o engaged parts of the timing belt and carriage from the bottom side of the base frame Remove the belt driven pulley by moving it to the left and remove the timing belt Timing Belt Carriage Motor Belt Driven P u l l e y U e 8 Base Frame Carriage Figure 4 18 Timing Belt Removal top view 2 3 Carriage T e Timing Belt Figure 4 19 Timing Belt Removal bottom view ASSEMBLY POINT When fixing the timing be...

Page 159: ... Step 2 Press the two tabs of the home position sensor on the bottom of the base frame Step 3 Remove the home position sensor Step 4 Disconnect the connector from the home position sensor Home Position Sensor Cable Home Position Sensor a Top View b Botom View Figure 4 20 Home Position Sensor Removal 4 17 ...

Page 160: ...riage lead wires from the base frame See Figure 4 12 Step 3 Position the head adjustment lever at a setting between the 1st and 2nd positions Step 4 Remove the two tabs securing the platen gap sensor to the left frame then remove the sensor Platen u Tab Head Lever Adjustment a Outside Left b Inside Left Figure 4 21 Platen Gap Sensor Removal 4 18 ...

Page 161: ...Remove the two CBS 0 M3x6 screws Step 3 Remove the paper feed motor Paper Feed Motor CBS 0 M3x6 Figure 4 22 Paper Feed Motor Removal FADJ STMENTRE U RED When the paper feed motor is replaced or the fixing screws are loosened perform the following Section 4 3 1 3 Paper Feed Motor Gear Backlash Adjustment 4 19 ...

Page 162: ...ting Step 3 Remove the CPS P M3x1O screw securing the friction tractor sensor to the right frame then remove the sensor PaDer Release Lever Friction Tractor Sensor M3x1O Figure 4 23 Friction Tractor Sensor Removal ASSEMBLY POINT Make sure of the sensor direction and set in place before mounting the friction tractor sensor on the right frame Refer to Figure 4 23 4 20 ...

Page 163: ...move the printer mechanism Refer to Section 4 2 4 1 Step 2 Loosen the two bends securing the paper end sensor to the back of the paper guide Step 3 Remove the paper end sensor Paper End Sensor Paper Guide B d Figure 4 24 Paper End Sensor Removal 4 21 ...

Page 164: ...r Platen Shaft Holder Platen Shaft Holder I i Figure 4 25 Platen Cover Removal Step 3 Position the paper release lever at the its middle setting Step 4 Push on the left shaft holder tab and rotate it forward Step 4 Push on the right shaft holder tab and rotate it forward Step 5 Remove the platen unit by moving it to the right side Left Frame I Right Frame Platen Unit Figure 4 26 Platen Unit Remova...

Page 165: ...nsor mounting part of the carriage at the cutout in the base frame Step 3 Open the tab of the ribbon drive base then remove the color select sensor from the carriage Step 4 Disconnect the connector of the color select sensor from the color select cable board Color Select Sensor Base Frame Figure 4 27 Color Select Sensor Removal 4 23 ...

Page 166: ...ibbon drive base from the carriage Remove the ribbon planetary lever assembly and ribbon transmission gear Position the color select ribbon feed motor mounting area of the carriage at the cutout in the base frame Remove the two CTB 0 screws M3 x 6 then remove the color select ribbon feed motor from the carriage Ribbon Drive Base Color Select Ribbon Feed Motor Tab I Carriage CS M3X6 a Top View Figu...

Page 167: ...REV A ASSEMBLY POINT When installing the ribbon drive gear set it as shown in Figure 4 30 I I I Ribbon Drive Gear 1111 LS 3 4x0 06x11 Carriage Figure 4 30 Ribbon Drive Gear Setting 4 25 ...

Page 168: ...the paper release lever tab at the inside of the right frame then remove the lever Press the sub paper release lever tab at the inside of the right frame then remove the lever Paper Release Lever Right Frame I Paper Feed Reduction Gear m PW 5 2xO 3X1O htk Tractor Transmission Gear L s v Tractor Transmi d g 4 4 Gear Spring Sub PaDer Release Lever ssion Figure 4 31 Paper Release Lever and Sub Paper ...

Page 169: ...m left frame Refer to Section 4 2 4 7 Remove the head cable and color select cable from the bottom of the base frame then remove the head cable holder See Figure 4 16 Cut the wire clamp then remove each lead wire from the base frame See Figure 4 12 Remove four two CBS 0 M3x6 screws securing the left and right frames to the base frame Slide the main frame unit upper portion of the mechanism backwar...

Page 170: ...ame Unit Figure 4 35 Base Frame Unit ADJUSTMENT REQUIRED When the paper feed motor is replaced or the fixing screws are loosened perform the following adjustment Section 4 3 1 3 Paper Feed Motor Gear Backlash Adjustment n 4 28 ...

Page 171: ... carriageGuideshafiB I Carriage Guide Shaft A Carriage Figure 4 36 Carriage Removal ASSEMBLY POINT When installing leaf spring LS 6 x 0 15 x 11 and the parallel adjustment bush at the right side of carriage guide shaft B be careful of their orientations See Figure 4 37 LS 6x0 15x11 Carriage Guide Shaft B 41J Parallel Adjustment Bush L Right Frame Figure 4 37 Leaf Spring and Parallel Adjustment Bus...

Page 172: ...anism status Step 4 Remove the paper guide plate o L Plate Paper Guide Plate Spring Figure 4 38 Paper Guide Plate Spring and Paper Guide Plate Removal ASSEMBLY POINT When setting the paper guide plate verify that its direction is correct P Platen Paper Guide Plate Figure 4 39 Paper Guide Plate Mounting Direction ADJUSTMENT REQUIRED When the paper feed motor is replaced or the fixing screws are loo...

Page 173: ...Q 860 or four for LQ 106O from the hook on the base frame Step 4 Remove the paper feed roller unit ASSEMBLY POINT When installing the paper feed roller unit check that the stopper at the bottom edge of the unit is placed in the groove of the base frame FADJUSTMENTRE U RED1 When the paper feed motor is replaced or the fixing screws are loosened perform the following Section 4 3 1 3 Paper Feed Motor...

Page 174: ...ractor base frame Step 3 Remove the HNO 4 nut securing the tractor guide shaft Step 4 Remove the tractor left frame Step 5 Push the tractor lock lever upward and remove the left tractor assembly from the shafts ctor Assembly left Tractor Figure 4 41 Tractor Assembly left Removal ASSEMBLIY POINT When mounting the tractor assemblies to the shafts set them so that the marks on the right and left trac...

Page 175: ... the assembly procedures have been omitted Step 1 Remove the RE 4 on the paper tension roller shaft at the outside of the paper tension left frame Step 2 Disconnect the paper tension shaft holder from the paper tension left frame by sliding it toward the outside then remove it toward the right side Paper Tension Roller Shaft Assembly 1 Shaft Holder Figure 4 43 Paper Tension Roller Shaft Assembly R...

Page 176: ...nt bush is removed Remove the printer mechanism Refer to Section 4 2 4 1 Remove the printhead Refer to Section 4 2 4 2 Remove the ribbon mask holder with the ribbon mask Reinstall the printhead on the carriage When reinstalling the printhead lock the head lock levers while pushing the printhead forward and downwoard Move the carriage to the left set the thickness gauge in position and rotate the c...

Page 177: ...REV A I Thicknes s Gau9e 0 41 AO 02 mm Cafria9e Guide Shafi B I Figure 4 45 Platen Pa allel Adjustment Bush Gap Parallelism Adjustment 4 35 ...

Page 178: ... 4 nut securing the head adjustment lever Turn the chamfered edge of carriage guide shaft B so that if faces up insert the blade of a screw driver a diameter is approx 3 mm into the countersink of carriage guide shaft B Set the head adjustment lever at the 2nd position Position the paper release lever at the its backward setting Adjust the platen gap using a thickness gage while rotating carriage ...

Page 179: ...REV A I Thicknss Gauge 0 41 0 02 mm 1 Screwdriver Lever I I I I Carriage Guide Shaft B 1 I Figure 4 46 Platen Gap Adjustment 4 37 ...

Page 180: ...REV A Screwdriver Screw a up a b b Figure 4 47 Carriage Guide Shaft B Eccentric 0 41 tO 02 mm d 1 Figure 4 48 Platen Gap 4 38 1 ...

Page 181: ...p 2 Loosen the two CPS 0 M3x6 screws on the paper feed motor Step 3 Manually rotate the paper feed motor and adjust the gear backlash between the pinion and the paper feed reduction gear Allowable backlash 0 10 0 05 mm Step 4 Tighten the screws on the paper feed motor Paper Feed Reduction Gear CPS Oj M3x6 Figure 4 49 Paper Feed Motor Pinion Gear Paper Feed Reduction T 4 0 Pinion Gear 0 _ O lOi O 0...

Page 182: ... Refer to Figure 4 51 for the positions of the switches and VRS Table 4 6 VRS and Carriage Speed Mode Relationship VRI VR2 Carriage Speed Mode No o 0 1 4 8 12 2 3 o 9 10 11 Initialize Settings Before enter bidirectional value adjustment perform the following initialize settings Remove the printer cover B and sheet guide cover Remove the CBB M3 X1O screw securing the option board cover Set the head...

Page 183: ...Feed the paper backward VR2 Adjustment Feed the paper backward for 1000 steps Y Depress the ON LINE Depress the TEAR OFF 1 I I 1 I 1 I I Pef formthetestprint I I I I Initialize the printer I I E N D Figure 4 50 Print Position Alignment Sequence 4 41 ...

Page 184: ...r three lines at mode 3 I I Feed the paper forward for 1060 steps I w 1 Depress LINE FEED 1 I I I Adjust the VR2 I A Which mode VR1 Adjustment select VR1 adjust or enter 1 I J it 5 B Figure 4 50 Print Position Alignment Sequence 4 42 ...

Page 185: ... even numbered line 2 nd is shifted as compared tothe odd numbered lines lstand3 rd To shift the even numbered iinetothe left press the TEAR OFF switch Atthis time confirm thatthe buzzer ring once Toshift theeven numbered line to the right press the LOAD EJECT switch At this time confirm that the buzzer ring once VR Variable Resistor Adjustment Turn VRn to the left most position n l or 2 turn the ...

Page 186: ...esistance 5 1 1 Extension Cable Connections ti fl ti fl ti 5 13 MONPS MONPSE Board Block Separation 5 1 4 AC Connector for Measuring Instruments n ti H titi H m ti ti 5 14 MONPS MONPSE Board Voltage Waveforms c H H u H M 5 l 6 CPU Clock Signal Waveform u uuu u H u H M u M u 5 212l Print Timing MU CN O 5 21 LIST OF TABLES Measuring Instruments 5 1 Unit Lists s 5 2 Symptoms and Reference Pages 5 3 M...

Page 187: ...tive unit In the unit repair procedure section possible defective components are indicated for each symptom and normal waveforms and resistance values are noted in order to help find the defective elements After replacing the defective components perform adjustment or lubrication by referring to Chapters 4 and 6 Table 5 1 shows measuring instruments required for troubleshooting Table 5 1 Measuring...

Page 188: ...1O6O 250V 2 OA Time rug X50206301 O MONPS BOARD 100 120V AC for 100V Y571202000 for 120V Y571 202100 MONPSE BOARD 220 240V AC Y571203000 for U K Y571203100 JUNMM BOARD Control and drive circuit board Y571201000 Panel Unit Control panel JUNPNL W BOARD Y57I501OOO Fan Unit Cooling fan Y571503000 Y571504000 Model 5810 Printer Mechanism for LQ 860 Y571590000 for Europe Y571 590100 Model 5860 Printer Me...

Page 189: ... print Vertical lines ruled lines are misaligned ing mode b when using a color Printing colors are not switched correctly ribbon in the self Printing positions are misaligned during color printing violet 5 7 test mode orange and green NO paper is fed The paper feeding system and the paper being used do not Abnormal paper feed match 5 8 Line feeding is not uniform during printing 4bnormal control P...

Page 190: ... the MONPS MONPSE board turn the printer power on and measure the output voltage 1 I t N voltage normal r Connect CN1 on the MONPS MONPSEboard Dscomect connectors on the JUNMM board except CN5 CN9 and CN16 1 F eplace the MONPS MONPSE board I Replace the JUNMM board m 1 on does the buzzer ring f N Replace the fan unit Connect all the connectors on the JUNMM board Replace the printer turned on does ...

Page 191: ...REV A 2 Printer mechanism is not initialized v turned on is the mechanism I Replace the printer mechanism N Confirm that the C G ROM 3A is inserted correctly I Replace the JUNMM board 5 5 ...

Page 192: ...tridge START I Install the black ribbon cartridge Perform the self test Align the bi directional Y printing positions Refer to Section 4 3 2 1 I r I I Check the printhead v thermistor not open Y m Y Are the resista Replace the printhead d perform the self test u Replace the printer mechanism f T E x 1 Refer to Figure 5 2 5 6 ...

Page 193: ...idge u Replace the printer color ribbon cartridge move mechanism I Perform the self test I JUNMM board I L I V color printing violet orange Align the bi directional and green are printing positions printing positions Refer to Section 4 3 2 1 7 f END 5 7 ...

Page 194: ...corresponding feeding method and the N paper feeding method by paper T A N rotate smoothly when turned Replace the printer mechanism I N I Replace the I printer mechanism I I END fi q _ Is the fault Y corrected N Repluce the JUNMM board 5 8 ...

Page 195: ...ush the N FORM FEED LINE FEED and d Y Load the paper and push the ON LINE switch N 9 Operate each switch and confirm that the corresponding LED is lit with beep I I I switch and LED operate Y Replace the panel unit I v END N Replace the JUNMM board Y v El ID 5 9 ...

Page 196: ...the interface between the printer and host Are the settings correct I n I I Check the interface cable between the printer and host computer as follows I Are the signal connections correct Change the settings Is the interface cable connected firmly I Is the fault corrected Replace the JUNMM board 1 I T7 END T7 5 10 ...

Page 197: ...11 8 11 8 12 GND 12 1 12 1 12 2 5 GND 5 1 5 1 5 1 NOTES 1 These voltage are measured when printer is in waiting mode 2 Input Voltage is 240V AC oCN7 Head Cable R Uuuuuuuuuuuuuy 1 2 3 4 5 6 7 8 9101112131415 m 111111111111111 Ill 0 CN8 Head Cable F 1 F i I I 55 Q N z w I Printer Mechanism Rear side HDn n 1 to 24 corresponds to the pins in the printhead The resistance of COM HDn is measured to check...

Page 198: ... in Table 5 6 and Figure 5 3 For detailed operation of the electric circuit and printer mechanism see Chapter 2 Table 5 6 Troubleshooting Toois Tool No Hem Description Part No E594 Cable Between JUNMM board CNII and PE sensor B7651054O1 2 pin Between JUNMM board CN12 and PG sensor Between JUNMM board CN15 and F T sensor E625 Cable Between JUNMM board CNIO and CR HP sensor B765108OO1 3 pin E650 Cab...

Page 199: ... u m m cn C9 PRINTER MECHANISM NOTE These cables and connectors are longer than the distance between the JUNMM board and the printer mechanism and MONPS MONPSE board to make troubleshooting easier Figure 5 3 Extension Cable Connections 5 13 ...

Page 200: ... Table 5 7 and Figure 5 6 DANGER 1 Since this power supply is an isoloated switching regulator do not use a grounded measuring instrument such as a multimeter or oscilloscope If a grounded instrument is used fuse F1 may burn out Be sure that the measuring instrument is not connected to ground before using it on this power supply circuit In most cases the line plug shown in Figure 5 5 will avoid th...

Page 201: ...terminals collector and emitter R5 is open Check the resistance across R5 o Replace R5 Approx 0 5 Q Check the resistance across R14 o Replace R14 R14 is open Approx 9 2K Q The voltage at Malfunction in Voltage at each terminal under normal Replace the defective the 35 V line is the over voltage conditions part less than normal protection circuit Normal voltage for the transformer Pin 1 of PC1 GP 3...

Page 202: ... 6 MONPS MONPSE Board Voltage Waveforms Masuring Position DB1 Q2 C6 TYl EtE Inwt Side ollecto T2 Emitter TI Channel AVn 1 1 1 2 lNV Condition Storage Power OFF Power ON Voltage Waveform OFF 50V i Iov Q2 s 5 16 ...

Page 203: ...Figure 5 6 MONPS MONPSE Board Voltage Waveforms 5 17 ...

Page 204: ...REV A Fiaure 5 6 MONPS MONPSE Board Voltage Waveforms z L 5 18 ...

Page 205: ...Figure 5 6 MONPS MONPSE Board Voltage Waveforms 5 19 ...

Page 206: ...d 1 of the CPU either the IC but enters an initialized at move at all 4B to the IC 1A via the IC IB when the lB IC 1A error state all the buzzer printer power is turned on see Figs 2 58 or IC 4B rings five and 2 59 times The CS drive Check that phase switching signals are Replace the lever does sent from pins 2 3 4 and 5 of the CPU correspond not move up 4B to transistors Q24 Q25 Q26 and Q27 ing e...

Page 207: ... defective of the IC lIB and the output voltages ing defective abnormally between collectors and emitters of the element corresponding drive transistors Q30 through Q41 synchronize see Figs 2 57 and 2 58 IC 46 Xl Pin 16 2 V DIV 0 1 ps DIV Figure 5 7 CPU Clock Signal Waveform IC 2A HPW Pin 31 5 V DIV IC 2A HD20 Pin 37 5 V DIV Q21 Collector 50 V DIV 0 2 ms DIV 1 1 1 I 1 I L L I 1 m r 7 n _ Y n Js NO...

Page 208: ...timing belt ity for any abnormality or replace the timing bit The CR HP Connect the CR HP sensor to the JUNMM Replace the sensor is board turn the printer power on and CR HP sen defective check that the buzzer indicates the home ser position error See Section 1 9 Color select The CS RF Measure each coil resistance of the Replace operation is motor is CS RF motor the CS RF abnormal defective Resist...

Page 209: ...ft manually and check if the motor rotates smoothly Paper feed pitch is Adjust the gear backlash of the not uniform paper feed motor pinion see Section 4 3 1 3 The platen and car Adjust the parallelism of the riage guide shaft B platen gap see Section 4 3 1 1 are not parallel The platen surface is Replace not flat platen Although the printer is The FI T sen Check that the F T sensor opens Replace ...

Page 210: ...R 6 MAINTENANCE LIST OF FIGURES Figure l LQ 106o LQ MO Lubrication Application Points Diagram 6 2 LIST OF TABLES Table 6 1 Lubricants o 6 1 Table 6 2 Lubrication Points Refer to Figure 6 l o o O O O s o c s 6 1 6 i ...

Page 211: ...edule listed in Table 6 2 with EPSON O 2 G 26 and G 27 which have been extensively tested and found to comply with needs of this priter Refer to Table 6 1 for details Be sure that the parts to be lubricated are clean before applying lubricant and avoid excessive application which may damage related parts Table 6 1 Lubricants Classification Designation Capacity Availability Part No 1 Oil o 2 40 cc ...

Page 212: ... 3 DRAWINGS A 34 LIST OF FIGURES Figure A l Figure A 2 Figure A 3 Figure A 4 Figure A 5 Figure A 6 Figure A 7 Figure A 8 Figure A 9 Figure A 10 Figure A 11 Figure A 12 Figure A 13 Figure A 14 Figure A 15 Figure A 16 KPD78213 Pin Diagram A 2 PD78213 Block Diagram A 3 Memory Read Timing m ti uti tim ti flti A 6 MemoryWriteTiming o A 6 27256 Pin Diagram 0 o o o c 0 o 7A 7 27256 Block Diagram A A 7 HM...

Page 213: ...S Board Component Layout s A 34 MONPSE Board Component Layout A 35 MONPS Board Circuit Diagram 3636 MONPSE Board Circuit Diagram s A 37 JUNMM Board Component Layout A 38 JUNMM Board Circuit Diagram A 39 JUNPNL W Board Circuit Diagram ucuCH U UCH u A 41 LQ 860 Exploded Diagram A 42 LQ 1060 Exploded Diagram A 43 Model 5810 Exploded Diagram s A 44 Model 5860 Exploded Diagram A 45 LQ 8600utline Drawin...

Page 214: ...29 CN9 Pin Assignments u M H U u M H M HuoA 30 CNIO Pin Assignments U U H H0 O H uH M u u uA 303O CNll Pin Assignments HH c ou uu u HMM H u MoA 3O CN12 Pin Assignments H u uO H HUHUH H M uH A 3O CN14 Pin Assignments M H MUOA 30A 3O CN15 Pin Assignments 30 A 3O CN16 Pin Assignments A 3I CN17 Pin Assignments A 32 CN18 Pin Assignments A 33 CNI Pin Assignments A 33 CN2 Pin Assignments A 33 Parts Name ...

Page 215: ... ROM llM Bit C G 1 5A HM65256BLSP 12 PS RAM 32K x 8 Bit 120 ns A 1 1 3 7A HM6264ALP I 2 ST RAM 8K x 8 Bit 120 ns A 1 1 4 2A E05A02LA Gate Array Printhead Data Control A 1 I 5 8B E05AI OAA Gate Array Memory Management Unit A 1 1 6 IIB E05A24GA Gate Array Parallel I F Port Expansion A 1 1 7 1A S17300A Hybrid IC CR Motor Drive A 1 1 8 5B TL431 CLPB Ic Adjustable Precision Shunt Regulator A 1 1 9 IB 7...

Page 216: ...se serial l F l O lines Input and output ports 28 bits Edge sensor inputs 4 Figures A 1 and A 2 show the pin diagram and internal block diagram Table A 2 shows the terminal functions P03 1 u 64b P02 P04 2 P05 3 P08 c 4 P07 5 P671REFRQIAN7 o 6 P 6 6 w A l T A N 6 7 P65 WR 8 P641 D c 9 P63 A19 10 P621A18 o 11 P611A17 c 12 P60 A16 c 13 RESET o 14 X2 15 x l 16 Vss 17 P571A15 o 18 P56 A14 19 P55 A13 c ...

Page 217: ... n 3 m I BUS CONTROL 1 LJ Pc II SYSTEM CONTROL I I L 1 I PERIPHERAL BUS IIF u lJ Figure A 2 PD78213 Block Diagram A 3 ...

Page 218: ... pulse 3 P05 o CSRBB CS RF motor coil B drive pulse 4 P06 o CSRBC CS RF motor coil C drive pulse 5 P07 o CSRBD CS RF motor coil D drive pulse 47 P33 o CSRBENB CS RF motor drive hold switch s 39 P23 i CSHOM CS sensor signal 37 P21 I PESW PE sensor signal 61 P37 I GAPSW PG sensor signal 59 P35 I F TSW F T sensor signal 38 P22 I CRHOM CR HP sensor signal 51 AVREF I Analog port reference voltage 50 AV...

Page 219: ...Address bus 15 34 ADO 1 0 Address data bus O 33 AD1 1 0 Address data bus 1 31 AD2 1 0 Address data bus 2 30 AD3 1 0 Address data bus 3 29 AD4 1 0 Address data bus 4 28 AD5 1 0 Address data bus 5 27 AD6 1 0 Address data bus 6 26 AD7 1 0 Address data bus 7 45 TXD o Transmit serial data 44 RXD I Receive serial data 14 RESET I RST Reset signal 36 NMI I Non maskable interrupt signal 60 T02 o Clock puls...

Page 220: ... uPD78213 ICLK l A8 A15 out ADO AD7 ASTB out RD out Upper Address ii i z cEi cEi c I System clwk frequency Figure A 3 Memory Read Timing ICLK l A8 A15 ADO AD7 out ASTB out m out Upper Address c D i z Oata tii Z 1 System clock frequency Figure A 4 Memory Write Timing ...

Page 221: ... 20 E 10 19 07 11 18 o 12 17 0s 13 16 04 14 15 D 3 Figure A 5 27256 Pin Diagram D a t a Out pUt Vcc D O w D7 GND r VPP o IIllltll m Output Enable OutpuT Buffer Chip Enable E y Y Oecode Y Select Address Input AON A14 Memory X Oecode Ce I I Mat rix 262144 bit Figure A 6 27256 Block Diagram Table A 3 27256 Signal Status Mode CE OE A9 VPP Vcc outputs Read L L x Vcc Vcc D out Output Disable L H x Vcc V...

Page 222: ...ns o AO A14 WE OE CE o 1 00 1 07 Vcc GND Address input l l Ao 10 19 1 07 W r i t e e n a b l e input 1 00 11 18 06 Output enable input 1 01 12 17 1 0s 1 02 13 16 1 0 4 Chip enable input GNO 14 15 1 03 Data input output Power supply 5 VDC Ground Figure A 7 HM65256BLSP 12 Pin Diagram A A 1 00 1 07 FE iiz Figure A 8 HM65256BLSP 12 Block Diagram Table A 4 HM65256BLSP 12 Signal Status WE E CE OE L L L ...

Page 223: ...No connection NC 1 A12 2 A 3 A6 Ii A5 5 A 4 6 A 3 7 A 2 8 Al 9 AO 10 1 Do 11 D 1 12 D 2 13 Vss 14 z VDO 27 m 26 CS2 25 A8 24 A9 2064 23 All 22 m 21 AIO 20 xl 19 07 18 06 B 17 05 16 D4 b 15 D3 Figure A 9 HM6264ALP 12 Pin Diagram Ao Al Memory Cell A r y 42 A3 A4 S t2 X 16 X8 A5 A6 Al b9 4f A 2 CS1 lo Cs CS2 Cmwol Ia CS2 Log c 00 D 02 03 04 05 D6 07 Figure A 10 HM6264ALP 12 Block Diagram Table A 5 HM...

Page 224: ...A The E05A02LA is a gate array IC used to lighten the load on the CPU when processing print data Figure A Il E05A02LA Pin Diagram r R E D Y DO D7 HPW R ST CT AO Im H I H a H17 H24 1 I Figure A 12 E05A02LA Block Diagram A 10 ...

Page 225: ... H9 o Printhead solenoids 9 16 ON OFF Jo H 6 34 H17 o 41 Printhead solenoids 17 24 ON OFF H 4 22 DO f I Print data command 29 7 11 AO I Address bit O 12 CE I Chip enable 10 WR I Write strobe 30 RST I Reset signal 31 HPW I Printhead solenoid trigger pulse 32 REDY o Ready signal 42 VDD I 5 VDC 9 21 33 Vss Ground A 1 1 ...

Page 226: ...ment unit and so on GND 680 mo BANK MMI03 MLT AB 15 A814 AB 1 i jl o CSBOO BANK4 BANK5 BANK3 ROUT DISC THLD A85 CS13F0 CSB40 MM1OI PORT2 PORT I PORTO m GND L 1 Vcc CPU w m m A88 OBI 060 ABO AB2 AB 3 D BANKO AB i DB2 AB7 CAR2 m AB4 A 66 BANKI CSBEO DB6 AB13 AB12 AB9 DB3 DB4 DB5 DB7 Vcc g i Figure A 13 EO5A1OAA Pin Diagram A 12 ...

Page 227: ... i DATA m T 7 1 32 COUNTE MAN AGEMENT BIT DATA PROCESSING 1 0 DEVICE MANAGEMENT w EXTERNAL MEMORY e MANAGEMENT E I RESET cIRCUIT w ANKDEcODER AB 15 0 D87 0 m PO RTO 2 MM1OO MMIO I MMJ02 MMI03 MMI04 CSBOO CSB40 CSBCO CSBDO CSBEO CSBFO RAM _OL PROe B 8 0 m BANKS O ROUT Figure A 14 EO5A1OAA Block Diagram A 13 ...

Page 228: ...ess bus 10 9 AB11 I Address bus 11 39 AB12 I Address bus 12 4 0 AB13 I Address bus 13 8 AB14 I Address bus 14 7 AB15 I Address bus 15 56 D O 1 0 Data bus O 57 D1 1 0 Data bus 1 49 D 2 1 0 Data bus 2 37 D 3 1 0 Data bus 3 36 C 4 1 0 Data bus 4 35 D 5 1 0 Data bus 5 41 D 6 1 0 Data bus 6 34 D 7 1 0 Data bus 7 30 RORTO o LDLED 29 PORT1 o OTLED 28 PORT2 o CKLED 19 MMIOO o IC 11 B select 27 MMIO1 o IC ...

Page 229: ...latch enable 13 RAM o IC 5A select 14 PROi o IC 6A select 62 PROe o IC SLOT A select 2 B80 o Not used 4 BANK o Not used 31 m I ON LINE switch 33 64 VDD I 5 VDC power 1 32 Vss GND 23 THLD I Power on reset 21 ROUT o Reset signal 22 DISC o Discharge 6 MLT I Pulled down 63 CPU I Power on reset 61 CAR1 I R CN17 47 CAR2 I R CN18 A 15 ...

Page 230: ...CLK SLCT TESTEN m SOUT RDY WDOG N C m BUSY m ACK m N C A2 ERROR Vcc N C Al PE AO GND SLCT IN P20 PI P21 GND P22 P23 Figure A 15 E05A24GA Pin Diagram DIN7 O S T B ACK P B U S Y P E E R R O R SLCT INIT AFXT S L I N PIT TEii I T O IOUT RDY Vcc GND Parallel IIF System Power Serial VF General 1 0 Port Watch Dog Timer System Bus I R X D SOUT T M P 1 O P 1 3 P14 CLK WDOG T E S T E N B D 7 O A 7 O E RD W ...

Page 231: ...34 48 58 64 63 P14 o PF motor drive hold switch signal 30 P20 o PF motor coil A drive pulse 31 P21 o PF motor coil B drive pulse 32 P22 o PF motor coil C drive pulse 33 P23 o PF motor coil D drive pulse 16 TM I Not used open 61 P12 o IC 1A reference voltage O 60 P11 o IC 1A reference voltage 1 59 Plo o IC 1A reference voltage 2 62 P13 o Buzzer 21 READY o READY LED 20 IBF o BUSY Latch signal 15 ITO...

Page 232: ...Table A 8 E05A24GA Terminal Functions Pin No I Name I 10 I Function 27 22 25 18 14 41 17 45 NC IOUT Cs RST SOUT o I I o Not used Not used Chip select signal Reset signal Output Serial data 4 A 18 ...

Page 233: ...nipolar constant current chopper type driver IC and includes a control drive circuit for a 4 phase stepper motor n S1 730 O 0 n n Figure A 17 SI 7300A Pin Diagram 78 7 GND V c R A A N B N BOUT 1 JT I P Figure A 18 SI 7300A Internal Circuit A 19 ...

Page 234: ...il C drive pulse 12 ID I CR motor coil D drive pulse 5 OA o CR motor coil A drive terminal 7 OB o CR motor coil B drive terminal 9 Oc o CR motor coil C drive terminal 11 OD o CR motor coil D drive terminal 8 ZD o CR motor surge voltage output terminal 18 GND Ground 3 RSA I CR motor coil A B current detection resistor mounting terminal 13 RSB I CR motor coil C D current detection resistor mounting ...

Page 235: ...dding two external resistors The TL431 has high stability and outputs a large current so that it can replace various zener diodes Features Temperature compensated reference voltage 50PPM C TYP Low zener current 400 uA TYP High response speed Low dynamic output impedance Low noise ar u CATHODE R ANODE J 19 L REF Figure A 19 TL431 Pin Diagram A 2 1 ...

Page 236: ...INPUT CI OUTPUT B INPUT C2 GND OUTPUT C Figure A 22 75188 Pin Assignment Vcc 4B 4A 4y w 14 13 12 11 I 30 3A 3Y w 10 9 8 Figure A 21 7486 Pin Assignment A 1 1 13 75189 INPUT A Vcc RESPONSE CONTROL A INPUT D OUTPUT A RESPONSE CONTROL D INPUT B OUTPUT D RESPONSE CONTROL B INPUT C OUTPUT B RESPONSE CONTROL C GND OUTPUT C Figure A 23 75189 Pin Assignment A 22 ...

Page 237: ...CS used on the MONPS MONPSE board Table A 10 MONPS MONPSE Board Primary ICS Location IC Name Type Description Reference Section Q5 Q20 TL431 CLPB Ic Adjustable Precision Shunt Regulator A 1 1 9 IC20 STR20005 Ic 5 V DC Chopper type Switching Regulator A 1 2 1 A 23 ...

Page 238: ...05 Pin Diagram 4 TR I 3 0 T o 2 R 2 R3 R4 MIC I r k l I 4 I I START h o I CIRCUIT i I I I I REFER I I vOLTAGE I I T c l R5 I I 1 k 10 5 Figure A 25 STR20005 Equivalent Circuit Table A 1 1 STR20005 Specification Maximum Rating Ta 25 C Electric Characteristic VIN VOUT TOP VOUT VIN Ripple Atteneter v A hD C v v dB 45 2 0 75 20 to 100 5 1 to 1 11 40 45 A 24 ...

Page 239: ...gives a summary of each connector NOTE The signal directions for the connectors are as viewed from the JUNMM board 7 7 L 1 1 1 5 v w I b k 7 i 8100 z SERIES o v I I IF BOARD I t kd L J g 8E4 or 8E5 g D SUB rY 25 PIN CONNEC 2 U5E v cf TOR Ii CN9 I F i I I II F 5 4 w uz s CJu 8BJV 8BX I Figure A 26 Cable Connections A 25 ...

Page 240: ...or A 16 A CN7 15 Printer mechanism Printhead R 1 A 17 CN8 17 Printer mechanism MONPS MONPSE board Printhead F 1 A 18 TT A 19 CNIO 3 Printer mechanism CR HP sensor A 20 PE sensor A 21 PG sensor A 22 I Printer mechanism CN12 2 Printer mechanism CN13 j 25 Host computer Printer mechanism CN14 6 CN15 2 Printer mechanism F sensor I A 24 CN16 18 CN17 32 Control panel A 25 l Font module SLOT B 1 A 26 Iden...

Page 241: ...BX x 2 Metric screws are used Inch screws are used in 8E5 NOTE In this section the following abbreviations are used CR Carriage PF Paper feed CS Color select PG Platen gap F T Friction tractor RF Ribbon feed PE Paper end A 27 ...

Page 242: ...1 Bl I Data bit 1 Bit rate select 18 NC No connected 19 DO 8 7 I Data bit O 8 bit 7 bit select 20 12V o 12 VDC 21 P s I Parallel Serial select 22 23 SLCT IN I Select in 24 GND Signal Ground 25 TXD o Tramsnit data 26 GND Signal Ground NOTE The parenthesized descriptions in the signal column are for the 8143 interface board Table A 14 CN4 Pin Assignments Pin No Signal 1 0 Description 1 CRA o Phase A...

Page 243: ...22 10 HD15 o Printhead solenoid 15 11 HD18 o Printhead solenoid 18 12 HD23 o Printhead solenoid 23 13 HDIO o Printhead solenoid lo 14 HD14 o Printhead solenoid 14 15 HD6 o Printhead solenoid 6 6 7 8 COM o 35 VDC Table A 18 CN8 Pin Assignments Pin No Name 1 0 Description 1 HD5 o Printhead solenoid 5 2 HDI o Printhead solenoid 1 3 HD13 o Printhead solenoid 13 4 HD9 o Printhead solenoid 9 5 HD21 o Pr...

Page 244: ... 1 PELED Not used 2 GND Ground 3 PE I Paper end signal Table A 22 CN12 Pin Assignments Pin No Signai 1 0 Description 1 GAP I Head adjustment lever position 1 3 4 8 2 GND Ground Table A 23 CN14 Pin Assignments Pin No Signal 1 0 Description 1 PFA o Phase A drive pulse 2 PFB o Phase B drive pulse 3 PFC o Phase C drive pulse 4 PFD o Phase D drive pulse 5 COMAB o Common phases A and B 6 COMCD o Common ...

Page 245: ...data 5 LDLED o Parallel data output trigger pulse 6 CKLED o Serial data synchronous clock 7 S60 o Switch bank O 8 S61 o Switch bank 1 9 S62 o Switch bank 2 10 S63 o Switch bank 3 11 SB4 o Switch bank 4 12 SDO I Switch data O 13 SD1 I Switch data 1 14 SD2 I Switch data 2 15 SD3 I Switch data 3 16 SD4 I Switch data 4 17 5 I 5 VDC 18 GND Ground A 3 1 ...

Page 246: ...8 o Address bus 8 12 D2 1 0 Data bus 2 13 D1 1 0 Data bus 1 14 m o Read strobe 15 DO 1 0 Data bus O 16 AO o Address bus O 17 D3 1 0 Data bus 3 18 CG o CG select 19 D6 1 0 Data bus 6 20 A14 o Address bus 14 21 A4 o Address bus 4 22 WR o Write strobe 23 A7 o Address bus 7 24 5 o 5 VDC 25 Al 1 0 Address bus 11 26 PROG I Program select 27 A12 o Address bus 12 28 A13 o Address bus 13 29 Al o Address bu...

Page 247: ...bus 10 Reset signal GND Address bus 9 Address bus 8 Data bus 2 Data bus 1 Read strobe Data bus O Address bus O Data bus 3 CG select Data bus 6 Address bus 14 Address bus 4 Write strobe Address bus 7 5 VDC Address bus 11 Program select Address bus 12 Address bus 13 Address bus 1 Bank O Address bus 2 Address bus 3 Table A 28 CN1 Pin Assignments Pin No I Name 1 2 3 4 5 6 7 8 9 10 35V GP G L 5V 12V 12...

Page 248: ...REV A A 3 DRAWINGS 3 J32 J TI g 4 Figure A 27 MONPS Board Component Layout A 34 ...

Page 249: ... J30 33r J32 d m b13 G a TI 7 IC20 r El m J24 C2 L cl mow B L U E u Figure A 28 MONPSE Board Component Layout A 35 ...

Page 250: ... 2 1 1 1 1 I A b 2 Ozaz 1202 C O ZZH Z UOEE vu I 1 Figure A 29 MONPS Board Circuit Diagram ...

Page 251: ...REV A 1 UXZO xl OX 9 xl Onz b 8M 118 en A N J 93 T 818 Figure A 30 MONPSE Board Circuit Diagram A 37 ...

Page 252: ...L t g Figure A 31 JUNMM Board Component Layout A 38 ...

Page 253: ...TD 17 Rodborough Road No 1 Raffles Place 26 00 Frenchs Forest NSW 2086 Australia Oub Centre Singapore 0104 Phone 02 452 5222 Phone 5330477 Fax 02 975 1409 Fax 5338119 EPSON ELECTRONICS TRADING LTD EPSON ELECTRONICS TRADING LTD 25 F Harbour Centre TAIWAN BRANCH 25 Harbour Road Wanchai 10F No 287 Nanking E Road Sec 3 Hong Kong Taipei Taipei Taiwan R O C Phone 5 8314600 Phone 02 717 7360 Fax 5 725792...

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