Technical Brief (Impact Printers)
Page 4
... paper to the tear-off Can be automatic or activated by pressing a button on pre-printed forms. LL L Versatility-Flexible interfacing Most EPSON impact printers offer both standard bidirectional parallel and serial interfaces which help you to add: Interface card 32KB Serial Serial Coax Twinax Multiprotocol Series 2 & ...position. Paper parking Supports loading of the box. Bundled Microsoft Windows® 3.1x, Windows NT 3.51/4.0, Windows 95 and Windows 98 drivers guarantees ease of use right out of paper from the other path is torn off , paper parking, and microfeed adjustments.
... paper to the tear-off Can be automatic or activated by pressing a button on pre-printed forms. LL L Versatility-Flexible interfacing Most EPSON impact printers offer both standard bidirectional parallel and serial interfaces which help you to add: Interface card 32KB Serial Serial Coax Twinax Multiprotocol Series 2 & ...position. Paper parking Supports loading of the box. Bundled Microsoft Windows® 3.1x, Windows NT 3.51/4.0, Windows 95 and Windows 98 drivers guarantees ease of use right out of paper from the other path is torn off , paper parking, and microfeed adjustments.
Product Information Guide
Page 6
...usually work for the next print job. If the LQ-850/950/1050 is set up the Page Length The page length has to single sheets, not tractor paper. LQ - 850/950/1050 - 6 12/12/88 24 - MATRIX PRINTER Installation/Support Tips Short Tear Off To activate the ...3-second interval. LQ - 850/950/1050 DOT - Software The type of lines/page, single sheets require a shorter page length than does tractor paper. To control it any Epson 24-pin driver will avoid unexpected results. To activate the tear -off feature manually, take the printer off feature on the printer, first turn...
...usually work for the next print job. If the LQ-850/950/1050 is set up the Page Length The page length has to single sheets, not tractor paper. LQ - 850/950/1050 - 6 12/12/88 24 - MATRIX PRINTER Installation/Support Tips Short Tear Off To activate the ...3-second interval. LQ - 850/950/1050 DOT - Software The type of lines/page, single sheets require a shorter page length than does tractor paper. To control it any Epson 24-pin driver will avoid unexpected results. To activate the tear -off feature manually, take the printer off feature on the printer, first turn...
Product Support Bulletin(s)
Page 15
... PULL TRACTOR CUT SHEET FEEDERS SINGLE BIN DOUBLE BIN 24 - STAND STAND DCB-LQ2 C842001 LQ1 KP - PIN MATRIX OPTIONS PSB No: P-0017B Page: 2 of 2 LQ-510 C800061 LQ-850 7311-A LQ-950 LQ-1050 LQ-2550 7313-A 7312-A 7314-A C806121 N/A 7339-A 7346-A 7345-A 7347-A 7340-A 7348-A N/A 7343-A INTERFACE ...8172 8165 C1-9E-A E-X C1-9E-A z:; STAND DCB-LQ2 i?iF1 KP - iz 8239 zi 8239 C1-9E-A =I; PRINTER ACCESSORIES WINDOWS DRIVER SOFTWARE APPLE MAC LQ SOFTWARE LQ PATCH SOFWARE PRINTER STAND DCB-LQ2 El= CPD-552 DCB-LQ2 C842001 LQ1 CPD-552 DCB - LQ2 ZYO' KP - N/A N/A N/A ...
... PULL TRACTOR CUT SHEET FEEDERS SINGLE BIN DOUBLE BIN 24 - STAND STAND DCB-LQ2 C842001 LQ1 KP - PIN MATRIX OPTIONS PSB No: P-0017B Page: 2 of 2 LQ-510 C800061 LQ-850 7311-A LQ-950 LQ-1050 LQ-2550 7313-A 7312-A 7314-A C806121 N/A 7339-A 7346-A 7345-A 7347-A 7340-A 7348-A N/A 7343-A INTERFACE ...8172 8165 C1-9E-A E-X C1-9E-A z:; STAND DCB-LQ2 i?iF1 KP - iz 8239 zi 8239 C1-9E-A =I; PRINTER ACCESSORIES WINDOWS DRIVER SOFTWARE APPLE MAC LQ SOFTWARE LQ PATCH SOFWARE PRINTER STAND DCB-LQ2 El= CPD-552 DCB-LQ2 C842001 LQ1 CPD-552 DCB - LQ2 ZYO' KP - N/A N/A N/A ...
Technical Manual
Page 10
...-serif) are serial dot matrix 9-pin terminal printers that print at a maximum of the FX-850/1050 1-1 REV.-A 1.1 FEATURES The FX-850 and FX-1 050 are standard. q Compatible with the high class models such as a default character set can be selected according to fan-fold paper, cut sheets, and roll paper. q Printer driver EPSON ESC/P-83 is...
...-serif) are serial dot matrix 9-pin terminal printers that print at a maximum of the FX-850/1050 1-1 REV.-A 1.1 FEATURES The FX-850 and FX-1 050 are standard. q Compatible with the high class models such as a default character set can be selected according to fan-fold paper, cut sheets, and roll paper. q Printer driver EPSON ESC/P-83 is...
Technical Manual
Page 36
...(Main Board) The PEGX board is implemented using gate arrays, the PEGX board features very compact construction. Driver circuits for the motors, sensors, and printhead are : Universal IC q STK6722HZ (IC2A Carriage Motor Driver q NJM2355 (lCIA Switching Regulator IC Gate Array q E05A15HA (IC3A Paper Feed and Carriage Motors controller,...S-RAM (8 KBX2) ~~ Lithium Battery %&h CPU (PPD7810HG) Figure 1-14. Since the complicated logic circuit section is the main board, and interfaces the printer to the host computer, controls the printer mechanism and control panel, and supplies DC voltage.
...(Main Board) The PEGX board is implemented using gate arrays, the PEGX board features very compact construction. Driver circuits for the motors, sensors, and printhead are : Universal IC q STK6722HZ (IC2A Carriage Motor Driver q NJM2355 (lCIA Switching Regulator IC Gate Array q E05A15HA (IC3A Paper Feed and Carriage Motors controller,...S-RAM (8 KBX2) ~~ Lithium Battery %&h CPU (PPD7810HG) Figure 1-14. Since the complicated logic circuit section is the main board, and interfaces the printer to the host computer, controls the printer mechanism and control panel, and supplies DC voltage.
Technical Manual
Page 89
... 2-37 shows the carriage motor drive sequences. Because the carriage motor has one driving transistor per winding (unipolar drive), two drivers become active in the 2-2 phase excitation system and one and two drivers become active alternately in the 1-2 phase excitation system. I I I 1 I s+- ~ 12 3 415 6 7 8 1 Rotat ion C.c. w ~ C.w (Carriage moves left to right. ) (b) 1-2 Phase Excitation...
... 2-37 shows the carriage motor drive sequences. Because the carriage motor has one driving transistor per winding (unipolar drive), two drivers become active in the 2-2 phase excitation system and one and two drivers become active alternately in the 1-2 phase excitation system. I I I 1 I s+- ~ 12 3 415 6 7 8 1 Rotat ion C.c. w ~ C.w (Carriage moves left to right. ) (b) 1-2 Phase Excitation...
Technical Manual
Page 91
... shows the block diagram of this circuit is kept constant. +35VDC Surge Voltoge Absorber w ~ .- ,1 . - - '3 - - - 2 - + From E05A15HA A04 Col A B From E05A15HA ~ B04 Vcco ) Phase A Driver Phose B Driver Phase C Driver Phase D Driver -1 r I 1.-------%-LET', I Polof E05A16GA I Vref +5V h From Reference Voltage ( Generotlon Circuit ) Figure 2-38. This circuit drives the carriage motor using a separately-excited system (oscillation frequency...
... shows the block diagram of this circuit is kept constant. +35VDC Surge Voltoge Absorber w ~ .- ,1 . - - '3 - - - 2 - + From E05A15HA A04 Col A B From E05A15HA ~ B04 Vcco ) Phase A Driver Phose B Driver Phase C Driver Phase D Driver -1 r I 1.-------%-LET', I Polof E05A16GA I Vref +5V h From Reference Voltage ( Generotlon Circuit ) Figure 2-38. This circuit drives the carriage motor using a separately-excited system (oscillation frequency...
Technical Manual
Page 98
Circuit G Latch ~D 1 i Mode Reg. - Figure 2-45 shows the 2-2 phase excitation system. ,:. The paper feed motor has one driving transistor per winding (unipolar drive), two driver's become active in the paper feed motor phase switching circuit, and output as the phase switching signal to switch the rotational direction, under control of ...
Circuit G Latch ~D 1 i Mode Reg. - Figure 2-45 shows the 2-2 phase excitation system. ,:. The paper feed motor has one driving transistor per winding (unipolar drive), two driver's become active in the paper feed motor phase switching circuit, and output as the phase switching signal to switch the rotational direction, under control of ...
Technical Manual
Page 106
... 2-3) have been driven for the maximum allowable drive time, to prevent the printhead from being damaged. I I I 1 1 I I I I Buffer N v I L - - - - - - - - - - - - - - - - - -G-A-(-E-0-5-A-1-5-H-A- )- - - - - - - - - - - I I 1 I I I I , I +- ~J Holf dot Protect Ion Circuit 9uffer It A ~Dd III To Prlntheod Driver I1IItI11 iI i- t I I I I r I I 1 I I 1 I I I 1 I 8 I I I I I I I I From : m; REV.-A & Half-dot Protection Circuit The half-dot protection circuit is located in the gate array (E05AI 5HA). I1 J Figure 2-52.
... 2-3) have been driven for the maximum allowable drive time, to prevent the printhead from being damaged. I I I 1 1 I I I I Buffer N v I L - - - - - - - - - - - - - - - - - -G-A-(-E-0-5-A-1-5-H-A- )- - - - - - - - - - - I I 1 I I I I , I +- ~J Holf dot Protect Ion Circuit 9uffer It A ~Dd III To Prlntheod Driver I1IItI11 iI i- t I I I I r I I 1 I I 1 I I I 1 I 8 I I I I I I I I From : m; REV.-A & Half-dot Protection Circuit The half-dot protection circuit is located in the gate array (E05AI 5HA). I1 J Figure 2-52.
Technical Manual
Page 110
... -8 4.2.3 Push Tractor Unit Removal 4. -8 4.2.4 Circuit Board Removal 4-9 4.2.4.1 PEGX Board Removal 4-9 4.2.4.2 PEBFIL-11 Board Removal 4-11 4.2.5 Printer Mechanism Disassembly 4-12 4.2.5.1 Printer Mechanism Removal 4-13 4.2.5.2 Printhead Removal 4-14 4.2.5.3 FPC (Flexible Printed Cable) Removal ......... 4-15 4.2.5.4 Carriage Motor Removal 4-16 4.2.5.5 Timing Belt...23 4.2.5.11 Paper Release Lever Removal 4-24 4.2.5.12 Main and Base Frame Removal 4-25 4.2.5.13 Ribbon Driver Unit Removal 4-28 4.2.5.14 Carriage Removal 4-29 4.2.5.15 Paper Guide Plate Removal 4-31 4.2.5.16 Paper Feed...
... -8 4.2.3 Push Tractor Unit Removal 4. -8 4.2.4 Circuit Board Removal 4-9 4.2.4.1 PEGX Board Removal 4-9 4.2.4.2 PEBFIL-11 Board Removal 4-11 4.2.5 Printer Mechanism Disassembly 4-12 4.2.5.1 Printer Mechanism Removal 4-13 4.2.5.2 Printhead Removal 4-14 4.2.5.3 FPC (Flexible Printed Cable) Removal ......... 4-15 4.2.5.4 Carriage Motor Removal 4-16 4.2.5.5 Timing Belt...23 4.2.5.11 Paper Release Lever Removal 4-24 4.2.5.12 Main and Base Frame Removal 4-25 4.2.5.13 Ribbon Driver Unit Removal 4-28 4.2.5.14 Carriage Removal 4-29 4.2.5.15 Paper Guide Plate Removal 4-31 4.2.5.16 Paper Feed...
Technical Manual
Page 112
... Unit 4. .-27 Figure 4-39. Ribbon Driver Unit Removal 4-28 Figure 4-4o. Positional Relationship Between Paper Guide Plate and Paper Guide Plate Springs 4-31 Figure 4-44. Paper Guide Plate and Paper Feed Roller Unit Relationship 4. .-31 Figure 4-45. Paper Tension Roller Assembly Removal 4-36 Figure 4-53. Printer Mechanism Separation 4-26 Figure 4-37. Carriage...
... Unit 4. .-27 Figure 4-39. Ribbon Driver Unit Removal 4-28 Figure 4-4o. Positional Relationship Between Paper Guide Plate and Paper Guide Plate Springs 4-31 Figure 4-44. Paper Guide Plate and Paper Feed Roller Unit Relationship 4. .-31 Figure 4-45. Paper Tension Roller Assembly Removal 4-36 Figure 4-53. Printer Mechanism Separation 4-26 Figure 4-37. Carriage...
Technical Manual
Page 114
Maintenance Tools Description Philips screw driver #2 Box driver (7 mm across) Thickness gauge (0.50 mm) Round nose pliers Diagonal cutting nipper Tweezers E-ring holder #2.5 E-ring holder #3 E-... o B740200 100 0 B74 1400200 0 B74 1400100 o B74 1600100 o: Commercially available product E: EPSON exclusive tool Description Multi meter Oscilloscope Logic analizer Table 4-2. B7 10200001 B702700001 B730200200 O: Commercially available product E: EPSON exclusive product 4-1 Required and helpful tools, measuring instruments, and lubricants listed in Tables 4-1 through ...
Maintenance Tools Description Philips screw driver #2 Box driver (7 mm across) Thickness gauge (0.50 mm) Round nose pliers Diagonal cutting nipper Tweezers E-ring holder #2.5 E-ring holder #3 E-... o B740200 100 0 B74 1400200 0 B74 1400100 o B74 1600100 o: Commercially available product E: EPSON exclusive tool Description Multi meter Oscilloscope Logic analizer Table 4-2. B7 10200001 B702700001 B730200200 O: Commercially available product E: EPSON exclusive product 4-1 Required and helpful tools, measuring instruments, and lubricants listed in Tables 4-1 through ...
Technical Manual
Page 140
Main Frame Unit Paper Feed Roller A..., PaDer Guide Plate Ribbo~ Driver Home Position Senser FPC Figure 4-38. TADJUSTMENTSREQU'RED The following adjustment is required to the base frame, hook the eight tabs into the holes in the base frame, and pull it forward. Base Frame Unit ASSEMBLY POINT When fitting the main frame to reassemble the printer mechanism: 4.3.2 Paper Feed Motor Backlash Adjustment 4-27 REV.-A \~ Carriage Timing Belt Figure 4-37.
Main Frame Unit Paper Feed Roller A..., PaDer Guide Plate Ribbo~ Driver Home Position Senser FPC Figure 4-38. TADJUSTMENTSREQU'RED The following adjustment is required to the base frame, hook the eight tabs into the holes in the base frame, and pull it forward. Base Frame Unit ASSEMBLY POINT When fitting the main frame to reassemble the printer mechanism: 4.3.2 Paper Feed Motor Backlash Adjustment 4-27 REV.-A \~ Carriage Timing Belt Figure 4-37.
Technical Manual
Page 141
Ribbon Driver Unit Removal .c*- ', 4-28 Step 2: Separate the main and base frame units (Refer to Section 4.2.5. 1.). Tab Tab Figure 4-39. REV.-A 4.2.5.13 Ribbon Driver Unit Removal g$..!'.:, Step 1: Remove the printer mechanism (Refer to Section 4.2.5.1 2.). Step 3: Press the six tabs for the ribbon driver unit at the bottom of the base frame, and remove it.
Ribbon Driver Unit Removal .c*- ', 4-28 Step 2: Separate the main and base frame units (Refer to Section 4.2.5. 1.). Tab Tab Figure 4-39. REV.-A 4.2.5.13 Ribbon Driver Unit Removal g$..!'.:, Step 1: Remove the printer mechanism (Refer to Section 4.2.5.1 2.). Step 3: Press the six tabs for the ribbon driver unit at the bottom of the base frame, and remove it.
Technical Manual
Page 150
Step 1: Remove the printer mechanism (Refer to Section 4.2.5.2.). Step 3: Remove the ribbon mask. Ribbon Mask Holder and Ribbon Mask Configuration Step 4: Reinstall the printhead on the carriage. Step 2: Remove .... Step 5: Move the carriage to center. When disassembly or replacement is performed during maintenance or repaires of the parts described in this printer. l.). Step 8: Insert the blade of a screw driver (a diameter is rotated or removed. NOTE: When reinstalling the printhead, lock the head lock levers while pushing the printhead forward and downwoard...
Step 1: Remove the printer mechanism (Refer to Section 4.2.5.2.). Step 3: Remove the ribbon mask. Ribbon Mask Holder and Ribbon Mask Configuration Step 4: Reinstall the printhead on the carriage. Step 2: Remove .... Step 5: Move the carriage to center. When disassembly or replacement is performed during maintenance or repaires of the parts described in this printer. l.). Step 8: Insert the blade of a screw driver (a diameter is rotated or removed. NOTE: When reinstalling the printhead, lock the head lock levers while pushing the printhead forward and downwoard...
Technical Manual
Page 185
... A-22. A.1.l CPU LLPD781OHG A. . -2 A.1.2 Gate Array E05A15HA A. -7 A.1.3 Gate Array E05A16GA A. -9 A.1.4 HM27256G-25 EP-ROM A. -1 9 A.1.5 HM6264ALSP-12 CMOS ST-RAM A-21 A.1.6 NJM2355 A. . .-23 A.1.7 STK6722H 4-Phases Stepper Motor Driver A-24 A.2 EXPLODED DIAGRAMS AND SCHEMATICS A-26 LIST OF FIGURES Figure A-1. Memory Read Timing A-6 Figure A-5. HM6264ALSP-12 Block Diagram A-21 Figure A-14. FX-105O Exploded Diagram...
... A-22. A.1.l CPU LLPD781OHG A. . -2 A.1.2 Gate Array E05A15HA A. -7 A.1.3 Gate Array E05A16GA A. -9 A.1.4 HM27256G-25 EP-ROM A. -1 9 A.1.5 HM6264ALSP-12 CMOS ST-RAM A-21 A.1.6 NJM2355 A. . .-23 A.1.7 STK6722H 4-Phases Stepper Motor Driver A-24 A.2 EXPLODED DIAGRAMS AND SCHEMATICS A-26 LIST OF FIGURES Figure A-1. Memory Read Timing A-6 Figure A-5. HM6264ALSP-12 Block Diagram A-21 Figure A-14. FX-105O Exploded Diagram...
Technical Manual
Page 192
... read ; OP Code Fetch Timing T1 T2 T3 CLOCK ~ AB15 -8 (PF7 -0) AD7 -o (PD7 -O) x ADDRESS x x A D D R E S S }- --< READ DATA >--- Since the memory addressed is enabled after disengaging the driver (AD7-0), ~ is output at AD7-O at T4. The ALE and RD signals are HIGH when memory is output from T1 -T3, fetched at T3, and...
... read ; OP Code Fetch Timing T1 T2 T3 CLOCK ~ AB15 -8 (PF7 -0) AD7 -o (PD7 -O) x ADDRESS x x A D D R E S S }- --< READ DATA >--- Since the memory addressed is enabled after disengaging the driver (AD7-0), ~ is output at AD7-O at T4. The ALE and RD signals are HIGH when memory is output from T1 -T3, fetched at T3, and...
Technical Manual
Page 210
D1O - 011 *I7 082 *I 1 2 3456 18 Figure A-1 5. d -- - I I * 07 DO ~------ --= ------- 1; 1, n: t "4 ; 8: 1------- _l L------ - -~ .Jw_- ,, ~, ,, ,/ , L ----- II I I nls 1 4~ :cQJ II- STK6722H Internal Circuit A-24 mm f. ... . . STK6722H Pin Diagram I* , Q,> 9Z t4 Is m I I Figure A-1 6. REV.-A A.1.7 STK6722H 4-Phases Stepper Motor Driver ./T% The STK6722H is an uni-polar constant current chopper driver IC for the four phases stepper motor.
D1O - 011 *I7 082 *I 1 2 3456 18 Figure A-1 5. d -- - I I * 07 DO ~------ --= ------- 1; 1, n: t "4 ; 8: 1------- _l L------ - -~ .Jw_- ,, ~, ,, ,/ , L ----- II I I nls 1 4~ :cQJ II- STK6722H Internal Circuit A-24 mm f. ... . . STK6722H Pin Diagram I* , Q,> 9Z t4 Is m I I Figure A-1 6. REV.-A A.1.7 STK6722H 4-Phases Stepper Motor Driver ./T% The STK6722H is an uni-polar constant current chopper driver IC for the four phases stepper motor.