Technical Brief (Impact Printers)
Page 1
... Quality LLL The name of an EPSON's impact printer tells you if it has a narrow or wide carriage: LLL L Nine-pin printers all begin with FX, LX, or DFX Twenty-four pin printers all begin with tireless printheads and superior quality ribbons. These printers have paper loaded and waiting. Reliability - Impact printers are the property of their reliability...
... Quality LLL The name of an EPSON's impact printer tells you if it has a narrow or wide carriage: LLL L Nine-pin printers all begin with FX, LX, or DFX Twenty-four pin printers all begin with tireless printheads and superior quality ribbons. These printers have paper loaded and waiting. Reliability - Impact printers are the property of their reliability...
Service Manual
Page 21
...and chassis) 1500 VAC rrns -1 minute (between AC line and chassis) 1.2.7 Reliability MTBF: MCBF: Printhead life: 8000 power-on hours (POH) at a duty cycle of zs~o 24 million lines (excluding the printhead and ribbon) 300 million characters (14 dots/character) 1.2.8 Safety Approvals Safety standards: Radio frequency interference (RFI): U.S. A 1-13 version: European ... part 3) CISPR Pub 22 class B 1.2.9 Physical Specifications Size (W x D x H): Weight: 700 x 382x 369 mm (27.6 x 15.0 x 14.5 inches) 29 kg (63.8 lb) Rev. DFX-5000+ Service Manual 1.2.6 Electrical Specifications Table 1-6.
...and chassis) 1500 VAC rrns -1 minute (between AC line and chassis) 1.2.7 Reliability MTBF: MCBF: Printhead life: 8000 power-on hours (POH) at a duty cycle of zs~o 24 million lines (excluding the printhead and ribbon) 300 million characters (14 dots/character) 1.2.8 Safety Approvals Safety standards: Radio frequency interference (RFI): U.S. A 1-13 version: European ... part 3) CISPR Pub 22 class B 1.2.9 Physical Specifications Size (W x D x H): Weight: 700 x 382x 369 mm (27.6 x 15.0 x 14.5 inches) 29 kg (63.8 lb) Rev. DFX-5000+ Service Manual 1.2.6 Electrical Specifications Table 1-6.
Service Manual
Page 27
... Multi-part forms that vary in areas where there is no paper. 1.4.7 Automatic Paper Thickness Adjustment The printer measures the paper thickness each time paper is used. DFX-5000+ Service Manual Product Description 1.4.6 Paper Width Detection The printer detects the right paper edge and determines the right end of the form. 0 0 Figure 1-24. A 1-19... information. Cl Forms with a Label Q Multi-part forms that partly overlap the next page Multi-part forms that vary in thickness. The distance between the printhead and the platen is thicker than the rest of the printable area.
... Multi-part forms that vary in areas where there is no paper. 1.4.7 Automatic Paper Thickness Adjustment The printer measures the paper thickness each time paper is used. DFX-5000+ Service Manual Product Description 1.4.6 Paper Width Detection The printer detects the right paper edge and determines the right end of the form. 0 0 Figure 1-24. A 1-19... information. Cl Forms with a Label Q Multi-part forms that partly overlap the next page Multi-part forms that vary in thickness. The distance between the printhead and the platen is thicker than the rest of the printable area.
Service Manual
Page 29
... label diagonally opposite the first comer. (5) Press the TOP OF FORM button. (6) Close the printer cover. 7. DFX-5000+ Service Manual 4. Use DIP switches 3-5 and 3-6 to print. 1.4.11 Automatic Interface Selection When the printer does not receive any data tbr the set the paper type. Table 1-11. If you are..., it automatically feeds the paper backward to enable or disable the automatic tear off pause mode so the printer is too hot, the printer stops printing while it , and the printhead cooling fan also has a thermistor. When the pnnthead or cooling fan is ready to set time over...
... label diagonally opposite the first comer. (5) Press the TOP OF FORM button. (6) Close the printer cover. 7. DFX-5000+ Service Manual 4. Use DIP switches 3-5 and 3-6 to print. 1.4.11 Automatic Interface Selection When the printer does not receive any data tbr the set the paper type. Table 1-11. If you are..., it automatically feeds the paper backward to enable or disable the automatic tear off pause mode so the printer is too hot, the printer stops printing while it , and the printhead cooling fan also has a thermistor. When the pnnthead or cooling fan is ready to set time over...
Service Manual
Page 35
...terminal printer mechanisms. Its paper feeding mechanism uses fanfold paper, and an automatic mechanism is a 9-pin, serial, dot matrix printer mechanism developed for the DFX-5000+. Cl In the DFX-5000+, the angle between the DFX-5000+ and the DFX-5000 are: U The DFX-5000+ ...printhead and the surface of the platen has been changed . U The DFX-5000+ does not include a carriage home position sensor. LI The detection method of the CR motor, while the DFX-5000+ uses a belt-type encoder. DFX-5000+ Service Manual Product Description 1.6.1 M-3CI 1 Printer Mechanism The M-3C11 printer...
...terminal printer mechanisms. Its paper feeding mechanism uses fanfold paper, and an automatic mechanism is a 9-pin, serial, dot matrix printer mechanism developed for the DFX-5000+. Cl In the DFX-5000+, the angle between the DFX-5000+ and the DFX-5000 are: U The DFX-5000+ ...printhead and the surface of the platen has been changed . U The DFX-5000+ does not include a carriage home position sensor. LI The detection method of the CR motor, while the DFX-5000+ uses a belt-type encoder. DFX-5000+ Service Manual Product Description 1.6.1 M-3CI 1 Printer Mechanism The M-3C11 printer...
Service Manual
Page 40
...printhead in the horizontal direction. Because the CR motor is the main component of the paper and the ribbon. LI Auto platen gap adjustment mechanism The printer mechanism has an automatic platen gap adjustment function that actually pMts characters (dot matrix patterns). The printer...and provides the appropriate gap between the platen and printhead. DFx-5tW(h Sewka Manual Oparathg Prfncipka 2.1 OVERVIEW OF PRINTER MECHANISM OPERATION This section describes the Model 3C11 printer mechanism and explains how the printer works. A control circuit controIs CR motor driver ...
...printhead in the horizontal direction. Because the CR motor is the main component of the paper and the ribbon. LI Auto platen gap adjustment mechanism The printer mechanism has an automatic platen gap adjustment function that actually pMts characters (dot matrix patterns). The printer...and provides the appropriate gap between the platen and printhead. DFx-5tW(h Sewka Manual Oparathg Prfncipka 2.1 OVERVIEW OF PRINTER MECHANISM OPERATION This section describes the Model 3C11 printer mechanism and explains how the printer works. A control circuit controIs CR motor driver ...
Service Manual
Page 41
SHAFT, CR, GUIDE, REAR Inter Lock Switch PLATEN GAP ADJUSTMENT MOTOR PRINTHEAD I 6 ,4 II I 1, II II [ I CARRIAGE MOTOR L, & 1 I I I I I I 11 2JJJJU / I Platen Gap Home Position Sensor \ I 9 Carriage Encoder Belt DETECTOR, CR Figure 2-2. The front, rear,... one at the front tractor and one at the paper bail. Figure 2-3 shows this operation. 2-2 Rev. Operating Principles DFX-5000+ Service Manual Cl Ribbon feed mechanism The printer's ribbon cartridge contains an endless ribbon. The PF motor drives the paper feed mechanism. The plunger moves the paper bail assembly...
SHAFT, CR, GUIDE, REAR Inter Lock Switch PLATEN GAP ADJUSTMENT MOTOR PRINTHEAD I 6 ,4 II I 1, II II [ I CARRIAGE MOTOR L, & 1 I I I I I I 11 2JJJJU / I Platen Gap Home Position Sensor \ I 9 Carriage Encoder Belt DETECTOR, CR Figure 2-2. The front, rear,... one at the front tractor and one at the paper bail. Figure 2-3 shows this operation. 2-2 Rev. Operating Principles DFX-5000+ Service Manual Cl Ribbon feed mechanism The printer's ribbon cartridge contains an endless ribbon. The PF motor drives the paper feed mechanism. The plunger moves the paper bail assembly...
Service Manual
Page 52
...carriage motor temperature. Before using a different AC power supply, replace the fuse and power cord. e m %i;' DFX-5000+ Sendee Mama! the other +35 VDC line supplies power to six of the nine printhead pins (pins 1,3,5, 7,8, and 9); Therefore, after the power is turned off , wait three minutes before you ... (Driver Error) signal from the C117 MAIN board assembly, and output the CLIMIT (Power Down) signal when the printer has exceeded its duty cycle (the printhead temperature is divided into two sections.) One +35 VDC line supplies power to three of the circuit components, and ...
...carriage motor temperature. Before using a different AC power supply, replace the fuse and power cord. e m %i;' DFX-5000+ Sendee Mama! the other +35 VDC line supplies power to six of the nine printhead pins (pins 1,3,5, 7,8, and 9); Therefore, after the power is turned off , wait three minutes before you ... (Driver Error) signal from the C117 MAIN board assembly, and output the CLIMIT (Power Down) signal when the printer has exceeded its duty cycle (the printhead temperature is divided into two sections.) One +35 VDC line supplies power to three of the circuit components, and ...
Service Manual
Page 53
...(pin 2), the voltage becomes HIGH and comparator 2 outputs a HIGH signal. Cl Printhead driver detection circuit This circuit prevents printhead damage when a printhead driver is damaged. Operating Principles DFX-5000+ Service Manual 2.2.2 +5 VDC Line Regulator Circuit The +5 VDC line regulator circuit uses... a ringing choke coil (RCC) system DC/DC converter. RIM is HIGH. When the printer is ...
...(pin 2), the voltage becomes HIGH and comparator 2 outputs a HIGH signal. Cl Printhead driver detection circuit This circuit prevents printhead damage when a printhead driver is damaged. Operating Principles DFX-5000+ Service Manual 2.2.2 +5 VDC Line Regulator Circuit The +5 VDC line regulator circuit uses... a ringing choke coil (RCC) system DC/DC converter. RIM is HIGH. When the printer is ...
Service Manual
Page 75
Removing the Printhead 3-8 Figure 3-9. RemovingtheBottom PanelAssemblyl 3-16 Figure ...Panel Assembly2 3-17 Figure 3-22. Removing the C117 PNL Board Assembly 3-20 Figure 3-27. Removing the Printer Mechanism 3-22 Figure 3-29. Removingthe FPC Cover and theConnectors 3-7 Figure 3-8. Removing the lnterfaceCover 3-15 ... 3-41. Removing theTopCover 3-10 Figure3-11. Removing the Earth Plate 3-19 Figure 3-25. Packing the DFX-5000 3-2 Figure3-3. Dial Gauge Base 3-4 Figure3-5. Removing theCoverOpen Sensor 3-14 Figure3-18. Connecting the Cablestothe Main...
Removing the Printhead 3-8 Figure 3-9. RemovingtheBottom PanelAssemblyl 3-16 Figure ...Panel Assembly2 3-17 Figure 3-22. Removing the C117 PNL Board Assembly 3-20 Figure 3-27. Removing the Printer Mechanism 3-22 Figure 3-29. Removingthe FPC Cover and theConnectors 3-7 Figure 3-8. Removing the lnterfaceCover 3-15 ... 3-41. Removing theTopCover 3-10 Figure3-11. Removing the Earth Plate 3-19 Figure 3-25. Packing the DFX-5000 3-2 Figure3-3. Dial Gauge Base 3-4 Figure3-5. Removing theCoverOpen Sensor 3-14 Figure3-18. Connecting the Cablestothe Main...
Service Manual
Page 77
...carry it, supporting itfrom the botiom. Figure 3-1. Because the DFX-5000+ weighs 29.0 kg (63.8 lb) and is much larger and heavier than most printers, you disassemble, assemble, or transport the printer. Before transporting the printer, remove the paper and ribbon cartridge. A 3-1 Then ...attach the following packing materials, as shown in Figure 3-1: LI Transport locking bracket Cl Carriage guide shaft support bar Ll Printhead ...
...carry it, supporting itfrom the botiom. Figure 3-1. Because the DFX-5000+ weighs 29.0 kg (63.8 lb) and is much larger and heavier than most printers, you disassemble, assemble, or transport the printer. Before transporting the printer, remove the paper and ribbon cartridge. A 3-1 Then ...attach the following packing materials, as shown in Figure 3-1: LI Transport locking bracket Cl Carriage guide shaft support bar Ll Printhead ...
Service Manual
Page 84
... the printhead, torque the screws to the bottom plate of the printer mechanism. 6. Cl Tighten the screws while pulling the printhead backward to the carriage. A Removing the Printhead Q When you install the printhead, perform... the platen gap motor value (platen gap) adjustment described in Section 4.1.7. 3-8 Rev. Ribbon Fee BOARD TRACTOR ASSEMBLY (REAR) Figure 3-8. Disengage the printhead with the PW sensor and the masldess holder. Disassembly and Assembly DFX-5000...
... the printhead, torque the screws to the bottom plate of the printer mechanism. 6. Cl Tighten the screws while pulling the printhead backward to the carriage. A Removing the Printhead Q When you install the printhead, perform... the platen gap motor value (platen gap) adjustment described in Section 4.1.7. 3-8 Rev. Ribbon Fee BOARD TRACTOR ASSEMBLY (REAR) Figure 3-8. Disengage the printhead with the PW sensor and the masldess holder. Disassembly and Assembly DFX-5000...
Service Manual
Page 117
... to Section 3.2.6) 3. Removing the CR Motor Nomuwnukwq c@~ g :? ~ ,1 When you install the printhead, perform the platen gap motor value (platm gap) adjus~t, as described in Section 4.1.7. 3-41 Rev. Remove the printer mechanism. (Refer to the right side frame and remove the motor. CBS c . -.. '' Figure...connector junction board assembly and unhook the CR motor cables at the base frame of the printer mechanism. 5. Removing the Timing Belt Holder 4. DFX-5000t Service Manual Disassembly and Assambly 3.2.7.17 Removing the CR Motor 1. Remove the printhead. (Refer to Section 3.2.1) 2.
... to Section 3.2.6) 3. Removing the CR Motor Nomuwnukwq c@~ g :? ~ ,1 When you install the printhead, perform the platen gap motor value (platm gap) adjus~t, as described in Section 4.1.7. 3-41 Rev. Remove the printer mechanism. (Refer to the right side frame and remove the motor. CBS c . -.. '' Figure...connector junction board assembly and unhook the CR motor cables at the base frame of the printer mechanism. 5. Removing the Timing Belt Holder 4. DFX-5000t Service Manual Disassembly and Assambly 3.2.7.17 Removing the CR Motor 1. Remove the printhead. (Refer to Section 3.2.1) 2.
Service Manual
Page 118
Removing the CR Sensor 3-42 Rev. Remove the printhead. (Refer to the carriage and remove the sensor. (M3x5) ;onnector Junction Board CARRIAG Figure 3-56. Disconnect the red, 4-pin, CR sensor connector from the connector junction board assembly. 3. Remove the CPN (M3 x 5) screw securing the CR sensor to Section 3.2.1) 2. A Disassembly and Assembly DFX-5000+ Service Manual 3.2.7.18 Removing the CR (Carriage Encoder) Sensor 1.
Removing the CR Sensor 3-42 Rev. Remove the printhead. (Refer to the carriage and remove the sensor. (M3x5) ;onnector Junction Board CARRIAG Figure 3-56. Disconnect the red, 4-pin, CR sensor connector from the connector junction board assembly. 3. Remove the CPN (M3 x 5) screw securing the CR sensor to Section 3.2.1) 2. A Disassembly and Assembly DFX-5000+ Service Manual 3.2.7.18 Removing the CR (Carriage Encoder) Sensor 1.
Service Manual
Page 128
... Note: The carnage guide shaft moves as shown in the direction of the black arrow, the distance between the right side of the platen and printhead nose narrows a little bit. /f'7A f@Y~ ; (h /"" CARRIAGE GUIDE SHAFT REAR PARALLELISM ADJUSTMENT LEVER ~ . 9 . ~," ~ ~ \ CP (PS) (M4x6) Q Q ,> # , 9 ,:~$ f , u '=./ * GUIDE SHAFT ...arrow, the distance between the right side of the platen and print head nose narrows a little bit. 10. Adjustment DFX-5000+ Servicw Manual 9. Repeat step 7 and 8 until the distance between the measured distances is thithin the specified range, ...
... Note: The carnage guide shaft moves as shown in the direction of the black arrow, the distance between the right side of the platen and printhead nose narrows a little bit. /f'7A f@Y~ ; (h /"" CARRIAGE GUIDE SHAFT REAR PARALLELISM ADJUSTMENT LEVER ~ . 9 . ~," ~ ~ \ CP (PS) (M4x6) Q Q ,> # , 9 ,:~$ f , u '=./ * GUIDE SHAFT ...arrow, the distance between the right side of the platen and print head nose narrows a little bit. 10. Adjustment DFX-5000+ Servicw Manual 9. Repeat step 7 and 8 until the distance between the measured distances is thithin the specified range, ...
Service Manual
Page 133
...(0.39 mm): #F616 (Part No. ALPHA Vatue m ' (- B102O472W Tension gauge (200g): #F545 (Part No. B765114601) ~ Do not tum the printer oflduringadjustment. Since the ALPHA and BETA value are changed this parameter that it is written on the label because the value is necessary when the... other units (board, printhead) are unique to each mechanism unit, it can be comfirmed at gance. Note: The GAMMA value means the paper thickness parameter. DFX-5000+ has 4 tables in all from parameter O to adjust the gap by EPSON. d When install the parameter into the...
...(0.39 mm): #F616 (Part No. ALPHA Vatue m ' (- B102O472W Tension gauge (200g): #F545 (Part No. B765114601) ~ Do not tum the printer oflduringadjustment. Since the ALPHA and BETA value are changed this parameter that it is written on the label because the value is necessary when the... other units (board, printhead) are unique to each mechanism unit, it can be comfirmed at gance. Note: The GAMMA value means the paper thickness parameter. DFX-5000+ has 4 tables in all from parameter O to adjust the gap by EPSON. d When install the parameter into the...
Service Manual
Page 134
Turn the printer on the printhead into the space between the maskless holder and the printhead nose. (At this time, the buzzer beeps the 2 sounds.) 9. Write the ALPHA value written on while pressing the TEAR OFF, MICRO FEED (v), and FRONT/REAR ... Out Maskless Holder) Figure 4-18. Confirm the ALPHA value written to Step 5.) 7. If done it straight to the right. (Refer to increment value by -1. 6. Adjustment DFX-5000+ Sewice Manual print 1. Open the top cover and inset the #F616 exclusive thickness gauge into the memory. - After writing the ALPHA value in the memory...
Turn the printer on the printhead into the space between the maskless holder and the printhead nose. (At this time, the buzzer beeps the 2 sounds.) 9. Write the ALPHA value written on while pressing the TEAR OFF, MICRO FEED (v), and FRONT/REAR ... Out Maskless Holder) Figure 4-18. Confirm the ALPHA value written to Step 5.) 7. If done it straight to the right. (Refer to increment value by -1. 6. Adjustment DFX-5000+ Sewice Manual print 1. Open the top cover and inset the #F616 exclusive thickness gauge into the memory. - After writing the ALPHA value in the memory...
Service Manual
Page 138
... q q (5 sets of 3 beeps) BEL code (07H) Carriage trouble D The printer receives a BEL command. Q The printer backs out paper, but the previous print job is locked. Head driver circuit short QThe printhead driver IC is broken. Q The PG home sensor is shotied. Rev. Table 5-1 lists...on. Cover open . Illegal paper memow g lncorr~ paper is open QThe top cover is loaded in printer. DFX-5000+ Service Manual Troubleshooting 5.1 TROUBLESHOOTING INFORMATION The information in this printer; Table 5-1. Head fan circuit short CIThe head fan driver IC is too low. t3 The voltage ...
... q q (5 sets of 3 beeps) BEL code (07H) Carriage trouble D The printer receives a BEL command. Q The printer backs out paper, but the previous print job is locked. Head driver circuit short QThe printhead driver IC is broken. Q The PG home sensor is shotied. Rev. Table 5-1 lists...on. Cover open . Illegal paper memow g lncorr~ paper is open QThe top cover is loaded in printer. DFX-5000+ Service Manual Troubleshooting 5.1 TROUBLESHOOTING INFORMATION The information in this printer; Table 5-1. Head fan circuit short CIThe head fan driver IC is too low. t3 The voltage ...
Service Manual
Page 140
Table 5-2. DFX-5000+ Service Manual Troubleshooting 5.1.3 Coil Resistance The following table provides the coil resistances for the motor, head fan, plunger, and pnnthead. Printhead Coil Resistance Rev. A 5-3 Motor, Fan, Plunger, and Printhead Coil Resistances ...176;F) 1 I 250 ohms *18 ohms at 25°C (770F) I I ] 61 ohms f4.30hmsat25°C (77°F) I Plunger I 90hms*0.450hmsat25°c (77oF) I Printhead 8.1 ohms f 0.8 ohms at 25°C (77°F) I FPC1 I FPC1 I Q- C6 Common - (#1, #3, #5, #7, #8, #9) T Thermistor NC Not connection Figure 5-3. NC...
Table 5-2. DFX-5000+ Service Manual Troubleshooting 5.1.3 Coil Resistance The following table provides the coil resistances for the motor, head fan, plunger, and pnnthead. Printhead Coil Resistance Rev. A 5-3 Motor, Fan, Plunger, and Printhead Coil Resistances ...176;F) 1 I 250 ohms *18 ohms at 25°C (770F) I I ] 61 ohms f4.30hmsat25°C (77°F) I Plunger I 90hms*0.450hmsat25°c (77oF) I Printhead 8.1 ohms f 0.8 ohms at 25°C (77°F) I FPC1 I FPC1 I Q- C6 Common - (#1, #3, #5, #7, #8, #9) T Thermistor NC Not connection Figure 5-3. NC...
Service Manual
Page 144
No 4 I Perform the bidirectional I + 17END NOTE 1: Check the followin connectors: 1. Rev. START E Perform the self-test. Yes fault corrected? I 4 v Check printhead cable continuity. Replace any bad part. Four connectors on the connector junction board in the printer mechanism. Carriage operation is normal, but the self-testis printed incorrectly. A s-7 Visually check printhead pins. CN6 (Cl 17 MAiI board) 2. Troubleshooting Are the connectors inserted securely? DFX-5000+ Service Manual 3.
No 4 I Perform the bidirectional I + 17END NOTE 1: Check the followin connectors: 1. Rev. START E Perform the self-test. Yes fault corrected? I 4 v Check printhead cable continuity. Replace any bad part. Four connectors on the connector junction board in the printer mechanism. Carriage operation is normal, but the self-testis printed incorrectly. A s-7 Visually check printhead pins. CN6 (Cl 17 MAiI board) 2. Troubleshooting Are the connectors inserted securely? DFX-5000+ Service Manual 3.