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Pinch Roller Bearing(8)
FC Shaft Guide (4)
Cam Shaft (2)
OP Gear (2)
OP Reduction Gear (2)
Reduction Gear B (2)
Intermediate Gear C (2)
FC Reduction Gear C (1)
FC Intermediate Gear (1)
Plate Intermediate Gear (1)
Plate Reduction Gear (1)
Intermediate Gear (2)
FC Reduction Gear B (1)
FC Intermediate Gear (1)
FC Reduction Gear (1)
FC Cam BR (1)
FC Cam L (1)
Cam Shaft B (2)
F Guide Shaft Support R (1)
F Guide Shaft Support L (1)
Bearing R-1350ZZR (2)
Carrier Spring (1)

N104P-4730

130460

E-4

4730 Ring JE-4

Tractor Guide Shaft (1)

43

Platen Bearing (2)

N104P-4733

130462

E-6

4733 Ring JE-6

F Guide Shaft (1)

3

N104P-4735 130461

E-5 4737 Ring

JE-5

Carrier Support Plate
Assembly (1)

1

Pinch Roller Holder (14)

N104P-4739

E-7

4739

Ring JE-7

Pinch Roller Holder B (14)

28

N104P-4741

S-17

4741

Pan Head Screw
M4x25,SPW

Mechanism Holder (2)

2

Power PCB (6)
Change Base Plate (1)

N104P-4742

S-13

4742

Cap Screw
M3x6

Control PCB(6)

13

N104P-4743

S-18

4743

Pan Head screw
M4x35,SPW

Mechanism holder(1)

1

N104P-4749

S-2

4749 Pan Head Screw M2x10

Indicator House Assembly (2)

2

N104P-4772

S-23

4772

Pan Head Screw
M3x6,SPW

Tractor Gear (1)

1

N104P-4773

W-3

4773 Poly slider Washer

Tractor Shaft (2)

2

N104P-4774

S-19

4774

Pan Head Tapping Screw
(BT)2x4

Paper Edge Sensor Assembly
(4)

4

FC Home Sensor (2)
FC Home Sensor B (2)
Carrier Assembly (2)
Head Connecting PWB
Assembly (3) Print Head (2)

Carrier Cover (1)
Home Sensor Cutoff Plate (1)
FFC Upper Plate (4)

N104P-4943

S-4

4943

Pan Head Screw
M3x5,SPW

Ribbon Guide Assembly (2)

19

N104P-4970

S-3

4970

Pan Head Tapping Screw
(ST)2.6x5

HA Sensor (2)

2

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Содержание Accel-7350

Страница 1: ...1 Accel 7350 Dot Matrix Printer Service Manual Document 130034 ...

Страница 2: ...ind any unclear points mistakes or omissions please contact us 4 We will not bear any responsibility for unsatisfactory results from the use this printer despite item 3 above EPSON is a registered trademark of S Epson Corporation LQ 2550 is a registered trademark of S Epson Corporation IBM is a registered trademark of International Business Machines Corporation IBM 2391 is a registered trademark o...

Страница 3: ...ontrol Diagram 24 Troubleshooting 25 Control ROM and PCB Replacement 25 Troubleshooting Guide 26 Error Message Remedies 27 Trouble Symptoms 31 Repair Flow Charts 33 Mechanical Replacement 49 Print Head and FFC Cable Replacement 51 Ribbon Guide Assembly Replacement 52 Carriage Motor Assembly Replacement 53 Carriage Timing Belt Replacement 54 Line Feed Motor Assembly Replacement 55 Platen Replacemen...

Страница 4: ...0 HA Motor Driver Circuitry 78 Ribbon Motor Driver Circuitry 79 MC Motor Driver Circuitry 80 LF HC Motor Driver Circuitry 81 Print Pin Driver Circuitry 85 Detecting Circuitry 87 Power Supply PCB 90 Indicator Circuit 93 I F Circuit 94 Slide SW Circuit 95 Power Circuit 96 Exploded Drawings and Part Numbers 97 ...

Страница 5: ... o Pin Diameter 010 0 25 mm o Head life 300 million stroke pin 2 3 Print Direction o Bi directional logic seeking 2 4 Print Speed pitch dot structures o High Speed Draft 400 cps 10 cpi 24 x 9 o Draft 300 cps 10 cpi 24 x 12 o LQ 150 cps 10 cpi 24 x 36 2 5 Number Of Copy Print Speed o Normal Mode Original 5 Draft 10 cpi 300 cps LQ 10 cpi 150 cps o High Impact Original 7 Draft 10 cpi 200 cps 1 pass p...

Страница 6: ...per Length 7 2 16 5 182 mm 420 mm Capacity of Hopper 100 sheets o Change of Paper Path Lever electrical control and software command o Adjustment of paper thickness Lever electrical control software command and Auto adjustment o Skew detection Yes Only for Manual Insertion o Paper Jam Detection Yes Only for Front Rear Tractor feeding 3 MEDIA PARAMETERS 3 1 Media Type o Fanfold Single Part Paper Wi...

Страница 7: ...3 mm Before Perforation 012 3 mm After Perforation 012 3 mm o Cut Sheet Single part with Manual Insertion Paper Width 7 2 16 9 182 mm 430 mm Paper Length 7 2 16 9 182 mm 430 mm Paper Thickness 003 005 0 08 mm 0 12 mm Paper Weight 16 24 lbs Paper Type Plain Paper Fine PPC Unprintable Area Top 012 3 mm Bottom 012 3 mm Right 012 3 mm Left 012 3 mm o Cut Sheet Multi part with Manual Insertion Paper Wi...

Страница 8: ...ain Paper Fine PPC Unprintable Area Top 012 3 mm Bottom 012 3 mm Right 012 3 mm Left 012 3 mm 4 PRINT EMULATION CHARACTER 4 1 Emulations Epson Mode Epson LQ 2550 ADP IBM Mode IBM 2391 OEM1 OKI OKI DATA 8480 OEM2 4 2 Font Typeface ANK High Speed Draft Draft Roman Sans Serif Courier Prestige Script Gothic OCR A OCR B Orator and Orator S 4 3 Character Set EPSON mode ANK EPSON character set code page ...

Страница 9: ...S INDICATORS 5 1 Power Power switch located left front side LCD 122 W x 32 H dots bitmap display LED 4 ONLINE SPEED ERROR HIGH IMPACT Key 8 ONLINE TEAR OFF SPEED RESET EJECT LOAD HIGH IMPACT MENU LF MICRO LF ENTER ALT RLF MICRO RLF 5 2 Paper Path Lever Adjustment Control Panel located left front side 5 3 Paper Thickness Lever Adjustment Control Panel located left front side 6 INTERFACE 6 1 Paralle...

Страница 10: ...Print Head Life 300 million stroke pin 9 2 Total Print Volume 12 million lines 9 3 Safety Standards Equivalent to the following Standards U S A version UL60950 CSA 22 2 No 60950 Europe version CE marking EN60950 9 4 EMI Equivalent to the following Standards U S A version FCC class B Europe version CE marking EN55022 class B EN61000 3 2 EN61000 3 3 9 5 Immunity Equivalent to the following Standards...

Страница 11: ...ar mode 15W 11 OTHER 11 1 Temperature At Operation 41 104o Fahrenheit 5 40o Celsius At Storage 22 149o Fahrenheit 30 65o Celsius 11 2 Humidity At Operation 20 RH 80 RH No condensing At Storage 10 RH 90 RH No condensing 11 3 Dimensions At Operation W 25 635 mm x D 18 3 465 mm x H 11 6 294mm At Storage W 25 635 mm x D 13 2 335 mm x H 11 6 294mm 11 4 Weight At Operation Approx 52 lbs 23 5 kg with Tra...

Страница 12: ...connection 4 CHASSIS GND and GND are connected in the printer 5 LOW is pulled down to GND by 2 2k ohms PIN SIGNAL IN OUT PIN SIGNAL IN OUT 1 STROBE IN 19 GND 2 DATA 1 IN 20 GND 3 DATA 2 IN 21 GND 4 DATA 3 IN 22 GND 5 DATA 4 IN 23 GND 6 DATA 5 IN 24 GND 7 DATA 6 IN 25 GND 8 DATA 7 IN 26 GND 9 DATA 8 IN 27 GND 10 ACK OUT 28 GND 11 BUSY OUT 29 GND 12 PE OUT 30 HIGH OUT 13 SELECT OUT 31 INITIAL IN 14 ...

Страница 13: ...he BUSY signal to go high in the following cases 1 When the initializing operation is being executed 2 When data is input with the STROBE signal 3 When the self test print is executed 4 When the printer is in the offline state 5 When the printer cover is opened 6 When a paper out condition or other error takes place ACK A signal which is output in synchronization with the transition of BUSY from h...

Страница 14: ...tions Cable Side Connector 25 pin male type Printer Side Connector 25 pin D sub connector female type PIN SIGNAL IN OUT PIN SIGNAL IN OUT 1 CHASSIS GND 14 NC 2 TXD OUT 15 NC 3 RXD IN 16 NC 4 RTS OUT 17 NC 5 CTS IN 18 NC 6 NC 19 NC 7 SIGNAL GND 20 DTR OUT 8 NC 21 NC 9 NC 22 NC 10 NC 23 NC 11 NC 24 NC 12 NC 25 NC 13 NC Notes 1 NC stands for no connection 2 CHASSIS GND and GND are connected in the pr...

Страница 15: ... printer When signal is low it indicates that the printer is busy and therefore data cannot be sent to the printer When this signal is high it indicates that the printer is ready and thereby data can be sent to the printer In the case of the XON XOFF protocol this signal is always high Signal Signals HIGH ON SPACE Logic 0 3 through 15V LOW OFF MARK Logic 1 3 through 15V Handshake Protocol DTR READ...

Страница 16: ...ceives 64 bytes to data after condition 1 or 2 occurs However when the remaining capacity of the buffer is smaller than 64 bytes the XOFF is not sent to the host 4 When the buffer is full regardless of the online state or the offline state In the following cases the XON code is sent to the host 1 When the printer state changes from busy to ready 2 When the printer state changes from offline to onl...

Страница 17: ...g is a negative number 1 FRONT Front Tractor HA ADJUST This setting is used for head position adjustment when the Front Tractor is used Auto 0 2 REAR Rear Tractor HA ADJUST This setting is used for head position adjustment when the Rear Tractor is used Auto 0 3 BACK BACK PULSE Basic backward travel in the HA auto mode This is the BACK PULSE setting It sets the distance by which the head travels ba...

Страница 18: ... increases Procedure While holding down ONLINE turn on the power to the printer Press ALT then MENU to enter menu Select HA MULTIPART ADJUST using and Press or until the desired number is displayed then press ENTER Press HIGH IMPACT to save the settings Printer Features Refer to USER S MANUAL for details Setup options The setup options configure the printer to work with the current operating envir...

Страница 19: ... comparing the characters printed in the right column with the hex codes you can verify exactly what codes are being sent to the printer If the code sent is a printable character 20h 7Eh that character is printed in the right column If the code sent is a non printable character such as a control code a dot is printed To exit from the hexadecimal dump mode turn off the power switch or press the ALT...

Страница 20: ... to shipment Operating Procedure 1 Select the rear tractor paper path and feed a 15 inch wide sheet of paper 2 While simultaneously holding down the LF and RLF keys turn on the printer The printer will enter the head gap adjustment mode 3 The LCD will have the display shown below Select Front or Rear using the key SPEED or the key TEAR OFF The front head gap adjustment setting is used for front tr...

Страница 21: ...ferred to as Mode A is used to align the print start positions of the print modes with different print speeds This mode sets the print start position constant for any print speed The bi directional print position adjustment mode hereinafter referred to as Mode B aligns the characters in lines printed at the same speed in different directions This mode sets the optimum value for each speed A change...

Страница 22: ...taneously stores the selected timing temporarily and starts printing according to that timing 9 Edit the speed mode settings by repeating steps 6 to 8 above 10 Press the HIGH IMPACT key to exit the print position adjustment mode Be sure to use this key to exit the mode When this key is pressed the temporarily stored timing is written to the EEPROM 11 When the print position adjustment mode is comp...

Страница 23: ...djustment mode 2 The LCD will have the display shown below Select Front or Rear using the key SPEED or the key TEAR OFF The front adjustment setting is used for front tractor feed and manual feed The rear adjustment setting is used for rear tractor feed and cut sheet feed ASF 3 Press the key LF and the printer will enter the adjustment setting selection mode The current setting will appear on the ...

Страница 24: ...23 Wiring Diagram ...

Страница 25: ...24 Control Diagram ...

Страница 26: ...e following sensor information and stores it in the EEPROM Thresholds of the right left edge sensors Threshold of the manual feed paper sensor Reference pulse for skew detection When performing this routine be sure to remove paper from the printing station and place 15 inch paper on the rear tractor do not feed it in To start the routine simultaneously hold down the SPEED and TEAR OFF keys and tur...

Страница 27: ...e feed control function check Reverse line feeding stops after exceeding 22 inches Voltage check on the test points specified on Main PCB Remove the top cover and lift the mechanism Then inspect from the rear side 5V Vcc No 32 pin of U8 OPTION FONT of the Main PCB 40V The left side lead wire of the resistor R209 of the Main PCB Note When the interlock SW is OFF the output of this point is open Whe...

Страница 28: ...T TR PAPER OUT REAR TR Fanfold paper is not set on the front rear tractor Reload paper SET PAPER A cut sheet is not loaded into the printer Reload paper PAPER OUT ASF CSF A cut sheet is not loaded into the ASF unit Install cut sheets into the ASF PAPER JAM FRONT TR PAPER JAM REAR TR A paper jam occurs at the front rear tractor Adjust tractor tension if necessary Remove the jammed paper and reload ...

Страница 29: ...n of the HC Motor Check the connection of the Home Sensor harness If it is connected properly replace the Home Sensor or the Main PCB FUNCTION MCMTR1 ERROR The MC Sensor Front Friction detects an error when the printer is initialized or when the front friction is adjusted Check to determine whether anything is obstructing the operation of the Front Friction Motor Check the connection of the MC Sen...

Страница 30: ... instruction operation Check to determine whether paper is loaded into the printer during the sensor instruction operation This error also occurs if paper is not loaded properly due to a paper jam Check to ensure that the Skew Sensor is mounted properly the Skew Sensor harness is connected properly and the FFC harness between the Main PCB and the Head Connecting PCB is connected properly If they a...

Страница 31: ...the Paper Sensor harness If it is connected properly replace the Paper Sensor or the Main PCB SKEW PULSE ERROR The printer fails to acquire the criteria for skew detection during the sensor instruction operation Check to determine whether paper is loaded into the printer during the sensor instruction operation This error also occurs if paper is not loaded properly due to a paper jam Check the conn...

Страница 32: ...replace the Main PCB Home position detection error Possible cause Head carrier malfunctions Defective sensor or interlock switch Remedy Check if the head carrier smoothly moves across its carrier bar If not replace the print head head carrier or carriage bar Check the interlock switch and the connection of the connectors CN28 on the Main PCB RAM error Possible cause Internal RAM error in CPU or ex...

Страница 33: ...h pin is not measured on the print head terminal Replace the defective components on the Main PCB such as the driving transistor or fuse for missing pin Vertical dot spacing is improper Possible cause Print head is defective Paper holding pressure by tractor R L is insufficient Remedy Replace the print head or the tractor spring Dot alignment in horizontal direction is improper Possible cause C mo...

Страница 34: ...33 Repair Flow Charts The following are only for troubleshooting to a functional block level Problems Jammed Ribbon Is the printhead printing with good quality Jammed or dragging ribbon ...

Страница 35: ...34 Dots Missing Caution Do not touch the print head immediately after printing because it may be too hot ...

Страница 36: ...35 Extra Dot Printing Improper character ...

Страница 37: ...36 Incorrect Printing Irregular print data ...

Страница 38: ...37 No LCD Display Half of the LCD lights up ...

Страница 39: ...38 No LCD Display Completely blank ...

Страница 40: ...39 Control Keys Not Functioning ...

Страница 41: ...40 No Buzzer Abnormal Ribbon Feeding Causing abnormal carriage movement ...

Страница 42: ...41 No Line Feed or Inconsistent Line Feeding ...

Страница 43: ...42 Carriage Error ...

Страница 44: ...43 ...

Страница 45: ...44 HEAD PROTECTION displayed but nothing happens Caution Do not touch the print head immediately after printing because it may be too hot ...

Страница 46: ...45 Cover Open Error Will Not Cancel With Cover Closed ...

Страница 47: ...46 No Fanfold Paper Reverse Line Feed ...

Страница 48: ...47 Printing Does Not Stop After Paper Is Ejected ...

Страница 49: ...48 Not Powering Up ...

Страница 50: ... head screws S 22 on the back to remove the top enclosure 2 Paper Rack Assembly Replacement REMOVAL Holding the external edge of the paper rack with your hands raise the front edge up to a vertical position and then lift up the paper rack gently INSTALLATION Follow the reverse of the above procedure as the way shown in the User s Manual Raise Up Remove ...

Страница 51: ...oppers left and right rear corners of the mechanism Step 5 Lift up the back of the mechanism and disconnect all the harnesses from the printed circuit board assembly Remove the mechanism from the bottom enclosure INSTALLATION Follow the reverse of the above procedure 4 Bottom enclosure Replacement REMOVAL Step 1 The top enclosure and the mechanism must already be removed Step 2 Remove 2 flat head ...

Страница 52: ...emove the rear guide FFC upper plate 3 pan head screws S 6 Step 4 Remove 2 pan head screws S 17 from the mechanism stoppers left and right corners of the mechanism Step 5 Lift up the back of the mechanism and disconnect the FFC cables from the connectors on the control PCB unit Step 6 Lift up the FFC guide plate and remove cables from the retainers with tweezers or a screwdriver Step 7 Disconnect ...

Страница 53: ...ite gear left side of the printer chassis to move the carrier up or down Position the Carrier Stop 002 use feeler gauge above the platen Step 9 Place 004 feeler gauges qty 2 beneath the clear plastic ribbon shield Place the gauges alongside the metal ribbon guide Refer to above picture for reference Step 10 Press down and tighten screws qty 2 securing shield in place NOTE Tightening the screws can...

Страница 54: ...sm and disconnect the C motor harness from the connector on the control PCB unit Cut and remove tie wrap from tie plate Step 4 Remove 4 pan head screws S 16 from the C motor Step 5 Remove the screw from the return pulley bracket pull and remove the timing belt from the return pulley Step 6 Remove the C motor INSTALLATION Follow the reverse of the above procedure Note Place the harness back in it s...

Страница 55: ...p 2 Remove the timing belt from the idler pulley assembly by simply dislocating the idler pulley assembly from its holder Step 3 Remove 2 screws to separate the timing belt from the carrier assembly INSTALLATION Follow the reverse of the procedure NOTE When installing the timing belt on the carrier assembly fix the teeth of the timing belt on the teeth of the belt stopper ...

Страница 56: ...e mechanism Rotate the mechanism up Step 3 Disconnect the LF motor harness from its connector in the control PCB unit Step 4 Remove LF motor timing belt Step 5 Remove 2 pan head screws S 16 from the LF motor to remove the assembly INSTALLATION Follow the reverse of the above procedure Note Secure the wire harness with a tie wrap Place the harness back in its original position ...

Страница 57: ...out of the mechanism INSTALLATION Follow the reverse of the above procedure Note When installing the platen shaft on the mechanical block be sure to locate the plastic bearing with the shaft opening on top Friction Mechanism Replacement This mechanism consists of pinch roller driver assembly and pinch roller driver assembly B Pinch roller driver Assembly REMOVAL Step 1 Remove top enclosure Step 2 ...

Страница 58: ...L Step 1 Remove top enclosure Step 2 Unhook the friction spring from the FC shaft Step 3 Detach the paper feed shaft intermediate gear on the right side of the pinch roller drive shaft B by removing 1 pan head screw S 6 then remove the E ring E4 on either end of the pinch roller drive shaft Step 4 Slide the pinch roller drive shaft to right the and then left out of the mechanical block INSTALLATIO...

Страница 59: ...ws S 17 from the mechanism stoppers left and right corners of the mechanism Rotate the mechanism up Step 3 Remove 2 pan head tapping screws S 11 from the ribbon motor assembly Note Replace motor with cable connector located on right lower side INSTALLATION Follow the reverse of the above procedure Connector ...

Страница 60: ...port bracket 2 pan head screws Step 3 Remove HA sensor fixing plate 1 pan head screw S 4 Step 4 Remove 4 pan head tapping screws S 11 to disassemble the HA motor Fixing Plate Step 5 Remove the HA motor Assembly 2 pan head tapping screws S 11 INSTALLATION Follow the reverse of the above procedure ...

Страница 61: ...p6 Remove the paper edge sensor s Step7 Disconnect the paper edge sensor connector from the carrier housing Step8 Install new sensor s into the ribbon guide assembly and tighten the screw Step9 Install the paper edge sensor cover s route the sensor cable into the cover opening and tighten the screw Step10 Connect the sensor cable s plug into the socket on the carrier housing Step11 Replace the car...

Страница 62: ...t and right remove both support brackets and the springs Step2 Remove the F guide shaft screw Adjust shaft and two bearings Step3 Remove the two HA motor screws from the fixing plate Step4 Remove the screws on the HA cam L R left and right side of the mechanism Remove the three cams ...

Страница 63: ...ad FFC A B and C cables Step8 Remove the 4 captive screws that are holding the C motor to the fixing plate then remove the timing belt from the C motor pulley Remove the screws that are holding the rear guide to the base plate L and the base plate R Remove the rear guide Step9 Remove the timing belt from the idler pulley assembly by dislocating the idler pulley assembly from its holder ...

Страница 64: ...ly REMOVAL Step 1 Remove the top enclosure Step 2 Remove 2 pan head screws S 17 from the mechanism stoppers left and right corners of the mechanism Rotate the mechanism up Step 3 Disconnect the harnesses of FC home sensor and OP home sensor on the control PCB Step 4 Remove the OP home sensor 2 pan head screws S 1 cut the tie wrap Step 5 Remove the E ring E 4 to disassemble the FC reduction gear B ...

Страница 65: ... from the mechanism stoppers left and right corners of the mechanism Rotate the mechanism up Step 3 Disconnect the harnesses of FC home sensor and OP home sensor on the control PCB Step 4 Remove the OP home sensor 2 pan head screws S 1 and cutting the tie wrap Step 5 Remove tie plate 4 screws Step 6 Remove the FC home sensor 2 pan head screws S 4 from the FC home sensor INSTALLATION Follow the rev...

Страница 66: ...he home sensor assembly by removing 2 pan head tapping screws S 12 4 Paper Sensor Assembly Replacement The Paper Sensor Assembly is located beneath the plastic molded metric scale front printer view REMOVAL Step 1 Remove the top enclosure Step 2 Remove 2 pan head screws S 17 from the mechanism stoppers left and right corners of the mechanism Rotate the mechanism up Step 3 Disconnect the harness of...

Страница 67: ...move 2 pan head screws S 17 from the mechanism stoppers left and right corners of the mechanism Rotate the mechanism up Step 3 Remove the paper cutter cover 4 pan head tapping screws S 12 Step 4 Disconnect the connector for the sensor harness A assembly on the control PCB Step 5 Detach the sensor harness A assembly by removing the retaining screw S 13 INSTALLATION Follow the reverse of the above p...

Страница 68: ...he F Guide Shaft Adjust screw on the right end of the F Guide Shaft Rotate the Shaft nut no more than 1 8 clockwise Step 3 Print Self Test to verify contrast When printing without the top enclosure on make sure the Interlock Switch and the Cover Open Close Switch are closed Note Keep your hands away from the head during printing Step 4 Upon completion of the adjustment tighten the screw Step 5 Run...

Страница 69: ...s Description EM60L Apply between plastic parts such as gears and pinch roller holder SFP 6 Apply between the metal and plastic parts such as a gear and lever axle metal stud HV 22 This lubricant oil is durable in temperature and is used for the carriage assembly Main shaft and carriage felt washers Refer to the next page for lubrication examples ...

Страница 70: ...69 G52 G50 G51 G39 G38 G36 G37 G40 G43 Lubrication Examples EM60L between mating gears SFP 6 between the metal and plastic parts HV 22 applied to carriage felt washers and main shaft ...

Страница 71: ...M 2k bits SOP 8pin Gate array BBG010 12 5MHz QFP 120pin Gate array BBG020 12 5MHz QFP 100pin Gate array BBG030 12 5MHz QFP 100pin Reset circuit MC motor drive circuit 4 circuit Head Adjust motor drive circuit Ribbon motor drive circuit C motor drive circuit LF motor drive circuit 2 circuit Pin drive circuit Detector CPU MB90705H QFP 120 pin Acts with 12 5 MHz input oscillation frequency is 25 MHz ...

Страница 72: ...sensor home sensor and cover open DRE0 Power cutoff input DRE1 Centronics interface initial interrupt input DRE2 Centronics interface data receiving interrupt input DRE3 C motor position interrupt input 11 XCS03 Output Chip select output to gate array BBG030 12 SCK0 Input Basic clock input for serial transmitting and receiving signal 13 SIN0 Input SOUT0 Output Data input and output of serial data ...

Страница 73: ...O of SOP 8 pin 2k bits Main Function Maintains printer setup data information including number of print lines margins starting position for printing and lateral alignment Data is read when power is turned on and data is written at setup and when power is turned off ...

Страница 74: ...en High Connect with PB2 of CPU CLK Input Clock for write access data Connect with PB0 of CPU Gate array BBG010 QFP 120 pin Acts at 12 5 MHz Access is possible with addresses 100000h 10003Fh Main function Pin Drive Waveform Creation Chip select output Control font ROM and BBG020 DMA controller For printing data transmission BBG010 pin assignment ...

Страница 75: ...XHAK Input For DMA request and DMA start 13 INTHC Input To inhibit pin action at C motor position interrupt 14 SYNC Input For start timing of printing 15 SYSCLK Input 12 5 MHz clock 16 XRESET Input Reset signal 17 PINA1 24 Output open drain Pin waveform output Gate array BBG020 QFP 100pin Acts at 12 5 MHz Access is possible with addresses 140000h 14003Fh Main Function Controlling C motor rotation ...

Страница 76: ...Signal for piezoelectric buzzer drive 11 HCA HCB HCXA HCXB Output open drain Signal for C motor drive 12 HCDR0 4 Output For setting C motor current 13 LFA LFB LFXA LFXB Output open drain Signal for LF motor drive 14 LFDR0 LFDR2 Output For setting LF motor current 15 RBA RBB RBXA RBXB Output open drain Signal for Ribbon motor drive 16 RBDR0 RBDR1 Output For setting ribbon motor current 17 HAA HAB H...

Страница 77: ... for centronics I F data input 7 SYNC0 Input 12 5 MHz clock 8 SYNC2 Output Clock for serial I F baud setting 9 CDATA0 7 Input Centronics I F data input 10 XACK BUSY POUT XERR SLCTOUT Output Centronics I F signal 11 XSTB XATFD XINIT XSLCTIN Input Centronics I F signal 12 DTR Output Serial I F signal 13 CTS Input Serial I F signal 14 SWCLK SWLTCH Output For detection of Panel key 15 SWIN Input For d...

Страница 78: ...f these will be selected according to printing direction printing starts 2 Dot timing of the leading pin starts at the first edge of LFCK and dot timing of the next successive pin starts at next edge This dot timing refers to the time that it takes the carriage head to move 1 720 inch 3 DMA is operated according to the dot timing of each successive pin 3 1 HRQ of BBG010 becomes High 3 2 When the C...

Страница 79: ...nsistor Q7 is turned OFF and the HA motor is supplied with standby current from the 40 V power line through R209 This standby current is necessary to stop the HA motor smoothly When the HADR0 signal U24 28 goes HIGH current is supplied to the HA motor through Q7 Thereafter each phase is turned ON or OFF in turn to revolve the HA motor ...

Страница 80: ... OFF and Q6 is turned ON so that the ribbon motor is supplied with standby current from the 40 V power line through R205 and R207 This standby current is necessary to stop the ribbon motor smoothly When the RBDR0 signal U24 24 goes HIGH current is supplied to the ribbon motor through Q5 Thereafter each phase is turned ON or OFF in turn to revolve the ribbon motor ...

Страница 81: ...by double phase and controlled by BBG020 There are four MC motors MC1 to MC4 To select a motor to operate set the motor s corresponding signal of MCON1 through MCON4 to HIGH Only one motor may be operated at a single time it is impossible to simultaneously run two or more motors ...

Страница 82: ...motor or 2 phase LF Motor and controlled by U24 BBG020 and U1 CPU The signals LF motor LFA LFB XLFA XLFB LFBA LFBB LFBXA LFBXB and C motor HCA HCB XHCA XHCB are phase drive signals which controls the direction and the step width of the motor LFDR0 2 LFBDR0 2 HCDR0 4 and HCST are current control signals which controls the speed of motor ...

Страница 83: ...ol and phase signals The speed control signal is set at a certain voltage level by transistors Q8 Q9 Q10 Q12 and Q11 and resistors R58 R59 R60 R76 and R61 and is supplied to P2 This voltage level determines how P2 controls the current which flows to the motor LF motor front drive circuit LF motor uses a 4 phase stepping motor and it is set in single phase by BBG020 at standby and double phase at r...

Страница 84: ...r R167 R172 and R179 and is supplied to U22 This voltage level determines how U22 controls the current which flows to the motor LF motor rear drive circuit LFB LF motor uses a 4 phase stepping motor and it is set in single phase excitation by MB90705H at standby and double phase excitation at rotation of the motor Current value which flows to the motor is decided by turning on LFBDR0 LFBDR2 ...

Страница 85: ...st of speed control and phase signals The speed control signal is set at a certain voltage level by transistors QA11 QA12 and resistor R180 R182 and R183 and is supplied to U23 This voltage level determines how U23 controls the current which flows to the motor ...

Страница 86: ...in striking force due to a electromagnetic phenomenon When the transistor is turned OFF the current persists to flow due to the existing electromagnetic field and creates negative high voltage at point A The print pin is activated for a period of 120µ to 128µ seconds and then continues several repetition of OFF for 3 2µ seconds and ON for 19 2µ seconds The activated period depends on the print den...

Страница 87: ... and each pin terminal C Common T1 T2 Thermistor When high temperature is detected in the print head the printer automatically takes the following actions Temperature 115 C Voltage at the test point TP 11 3 98V Stop printing and then moves the carrier in full printing width Temperature 110 C Voltage at the test point TP 11 3 85V Reverse logic seek ...

Страница 88: ...2 of U20 to set to LOW Note MC Sensor Front tractor Tractor Paper Sensor Rear Front belong to this circuit type Refer to the circuit diagram for those details Paper Empty Detector A photo reflector type sensor is used to detect a paper empty condition Note Circuit type Edge Sensor Skew Sensor and Jam Sensor Rear Front ...

Страница 89: ...0 V due to trouble PWOFF signal turns to 1 and the CPU is interrupted When the CPU accepts this interrupt it finishes all printing and mechanical action and writes necessary data present paper position to EEPROM During approx 500 msec after detection of PWOFF signal power voltage of 5 V system is assured ...

Страница 90: ...a carrier position If the voltage level at HS U24 70 is LOW the printer detects the carrier at home position If the carrier is out of the home position the voltage level is HIGH Note Circuit type Head Adjust Sensor Cover Open Sensor and Mc Sensor front rear friction ...

Страница 91: ...R1 The voltage is rectified through D2 and C11 and is supplied to the Vcc of the P1 at approximately 20V to sustain the oscillation in P1 At that time the voltages for 40V is also generated in the secondary coil 12 13 15 16 of the TR1 6 The voltage in the secondary coil 12 13 is rectified through the diode D7 and smoothed by C16 and C17 7 When the voltage exceeds 40V in the output and reaches over...

Страница 92: ...output voltage are located near the Capacitor C16 Test Point Location Ground Heat sink panel of D7 40V Lead of FB2 5V Lead of FB3 Caution Do not cross the test point with the ground line on the PCB A short may damage the component Check the appearance of the components for any abnormality Note Basically when troubleshooting the target device the device must be isolated from other device User the p...

Страница 93: ...t sink panel of P1 Else check all following possibilities P1 OK Check the resistance between the drain and source of P1 Make sure it is not shorted P1 OK Check the waveform at pin 3 of P1 R4 R5 OK If not replace SCR1 SCR2 OK If not replace PC2 Q1 ZD2 ZD5 ZD4 R19 R20 OK If not replace If still no 40V consult your dealer F2 fuse P2 ZD3 OK If not replace If no 5V check FB3 If still no 5V consult your...

Страница 94: ...93 Indicator Circuit ...

Страница 95: ...94 I F Circuit ...

Страница 96: ...95 Slide SW Circuit ...

Страница 97: ...96 Power Circuit ...

Страница 98: ...97 Exploded View 1 6 Following pages require Legal size paper for printing ...

Страница 99: ...98 Exploded View 2 6 ...

Страница 100: ...99 Exploded View 3 6 ...

Страница 101: ...100 Exploded View 4 6 ...

Страница 102: ...101 Exploded View 5 6 ...

Страница 103: ...102 Exploded View 6 6 ...

Страница 104: ...ear 1 N104 033 4850 Platen Intermediate Gear 1 N104 034 4851 Platen Reduction Gear 1 N104 036 4842 Reduction Gear B 2 N104 037 4856 Intermediate Gear C 2 N104 037B 4844 Compression Spring 2 N104 038 4858 OP Reduction Gear 2 N104 039 4857 OP Gear 2 N104 040 4841 OP Switching Cam 2 N104 042 4859 Gear Cover 1 N104 043 4846 Intermediate Gear 2 N104 044 4814 Pinch Roller Drive Shaft 1 N104 045 4825 Pin...

Страница 105: ...Assembly 1 N104 114 4898 Bearing 608ZZ NMB 2 N104 117A 130411 1 184 HA Sensor Assembly 1 N104 116 4502 HA Sensor GP1A13R SHARP 1 N104 124 4696 HA Home Sensor GP1S51V SHARP 1 N104 118 4521 HA Sensor Fixing Plate 1 N104 119 4491 HA Motor Fixing Plate 1 N104 120 4902 F Guide Shaft Support R 1 N104 121 4901 F Guide Shaft Support L 1 N104 122 4903 F Guide Spring 2 N104 123 4899 F Guide Shaft Adjust Sha...

Страница 106: ...576 FFC Upper Plate 1 N104 178 4580 Tie Plate 1 N104 179 130433 4566 FFC Safety Sheet 1 N104 180B 130424 4926 Felt Cover 2 N104 180 130423 4925 Ring Felt 2 N104 181 4624 Flap C 1 N104 187 4626 Flap Shaft 1 N104 188 4619 Flap B 1 N104 189 4617 Flap 3 N104 197A 4754 RU Lock Plate L Assembly 1 N104 197BA 4658 RU Lock Plate R Assembly 1 N104 198 4668 RU Lock Spring 2 N104 217A 1 190 I Base Plate Assem...

Страница 107: ...umber Part Number SAP Parts Name QTY Assy QTY N104 255 6538 TR Caution Label 1 N104 256 130455 6537 TR Position Label 2 N104 301 4424 Tractor Cover L 1 N104 302 4425 Tractor Cover R 1 N104 303 4364 Tractor plate 2 N104 304 4367 Tractor shaft 1 N104 305 4373 Tractor Guide Shaft 2 N104 306 4426 Tractor Guide B 2 N104 307 4421 Tractor Bearing 2 N104 308 4422 Tractor Gear 1 N104 309A 1 198 Tractor R A...

Страница 108: ...eramic Cap 100pF 50V 10 C10 C11 2 N104P 4794 4794 Ceramic Cap 1000pF 50V 10 C2 C9 8 N104P 4796 4796 Ceramic Cap 0 1uF 16V 10 C1 1 84092 4611 4797 Switch SOA 212HS SW1 SW8 8 N104P 4798 4798 Connector XX6216 012 110 808 CN1 1 N104P 4799 4799 Buzzer KBS 20DB 4P 0 BZ1 1 I F PCB Assembly PART NO 95150 263A SAP 100000000172 Reference Number Part Number SAP Parts Name Specification Model Location QTY N10...

Страница 109: ...Black White AC Switch Power PCB 1 N104 241 4852 Inlet Harness A Length 15 7 4 Inlet AC Switch 1 Main PCB Assembly PART NO 95150 5001A SAP 100000000121 Reference Number Part Number SAP Parts Name Specification Model Location QTY 84091 0154 3968 CPU MB90705H CMOS 16bit U1 1 84090 5530 3969 Custom Lsi A BBG010 KL9H035006CF P U4 4 84090 5531 3970 Custom Lsi B BBG020 U24 1 84090 5532 3971 Custom Lsi C ...

Страница 110: ...4557 Zenner Diode 3Z51 51V 3W ZD1 ZD12 12 84091 2604 4560 Chip Zenner Diode HZM5 1NB1 200mW ZD13 1 N104P 4562 4562 Chip Res 10ohm 5 1 8W RA2 1 N104P 4565 4565 Chip Res 360ohm 5 1 8W RA1 1 N104P 4621 4621 Chip Res 150ohm 5 1 10W RA3 RA4 2 N104P 4568 4568 Chip Res 33ohm 5 1 10W R16 R19 R20 R 21 4 N104P 3404 3404 Chip Res 100ohm 5 1 10W R56 R75 2 N104P 4570 4570 Chip Res 220ohm 5 1 10W R222 R223 R22 ...

Страница 111: ...1 N104P 4610 4610 Chip Res 10kohm 5 1 10W R236 R244 R25 2 R254 R257 R26 1 R262 7 N104P 4611 4611 Chip Res 22kohm 5 1 10W R235 R239 R24 3 R249 4 N104P 4612 4612 Chip Res 150ohm 5 1 8W R233 R242 R24 6 R250 R253 5 N104P 4614 4614 Chip Res 200kohm 5 1 8W R234 R237 R23 8 R247 R255 R25 6 R258 R260 8 N104P 4616 4616 Chip Res 15kohm 5 1 4W R149 R166 R18 4 R214 R221 R22 1A 6 N104P 826 826 Res Array 10kohm ...

Страница 112: ...15 C25 C29 C34 CA104 C45 C102 C108 C134 C135 CA43 CA3 9 CA40 C10 C148 37 N104P 4664 4664 Chip Ceramic Cap 1uF 50V C44 C47 C48 C 62 C68 C82 C89 C 113 8 N104P 4666 4666 Chip Ceramic Cap 4700p 50V C55 C58 C75 C78 C96 C99 12 N104P 533 533 AI Elec Cap 100uF 16V 85deg C8 C109 2 N104P 4669 4669 AI Elec Cap 1000uF 50V 85deg C43 C46 C61 C 81 C111 5 N104P 4672 4672 AI Elec Cap 10uF 16V 85deg C37 C41 5 84093...

Страница 113: ...668B P1 1 N104P 4372 4372 HIC 5 0V 1 0A with coil SI 8301L P2 1 84090 7530 4837 Photo Coupler IC CTR 100 300 UL VDE TLP421F D4 GR PC1 2 2 N104P 3831 3831 Transistor 150mA 50V HFE rank Y 2SC1815Y Q1 1 N104P 4374 4374 Diode Bridge 4A 600V RBV 406 DB1 1 84091 1398 4376 F R Diode 10A 200V trr 25ns FMX G22S D7 1 84091 1388 3837 F R Diode 0 5A 1000V trr 50ns EG01C D5 1 N104P 4378 4378 F R Diode 1A 200V ...

Страница 114: ...201 R19 1 N104P 4431 4431 Carbon Res 390kohm 1 2W 5 ERDS1TJ39 4T R1 1 N104P 4433 4433 Carbon Res 22ohm 1 4W 5 ERDS2TJ22 0T R6 1 N104P 4436 4436 Carbon Res 470ohm 1 4W 5 ERDS2TJ47 1T R11 21 2 N104P 4437 4437 Carbon Res 680ohm 1 4W 5 ERDS2TJ68 1T R3 1 N104P 4439 4439 Carbon Res 1kohm 1 4W 5 ERDS2TJ10 2T R12 16 17 3 N104P 4440 4440 Carbon Res 1 5kohm 1 4W 5 ERDS2TJ15 2T R9 1 N104P 4442 4442 Carbon Re...

Страница 115: ...N104 243 130420 4480 Switch Holder 1 N104 244 4492 Insulating sheet B 1 N104 246 4483 Separating Plate 1 N104 248 4495 Insulating sheet C 1 N104 252 4628 Indicator plate 1 N104 277 6294 SW Holder Plate 1 N104 601 4631 Ribbon exchange label 1 84009 1120 6402 Mount Base 1 84500 5409 6403 Binder 1 6404 Binder 1 94740 2611 4507 ES Label 1 Packing Material Reference Number Part Number SAP Parts Name QT...

Страница 116: ...4x10 Rack Support Plate 5 5 Cover Stop Board 2 N104P 3910 S 9 3910 Pan Head Tapping Screw BT 3x8 Tractor Main Frame 2 4 FC Home Sensor 2 N104P 3912 S 1 3912 Pan Head Screw M2x8 SW FC Home Sensor B 2 4 N104P 4430 W 4 4430 Plane Washer M3 TR GUIDE SHAFT 4 4 N104P 4432 W 5 4432 Spring Washer M3 TR GUIDE SHAFT 4 4 N104 254 254 4450 Mech Lock Screw M4x32 6 Mechanism Holder B 2 Mechanism Holder B 2 3 N1...

Страница 117: ...older 14 N104P 4739 E 7 4739 Ring JE 7 Pinch Roller Holder B 14 28 N104P 4741 S 17 4741 Pan Head Screw M4x25 SPW Mechanism Holder 2 2 Power PCB 6 Change Base Plate 1 N104P 4742 S 13 4742 Cap Screw M3x6 Control PCB 6 13 N104P 4743 S 18 4743 Pan Head screw M4x35 SPW Mechanism holder 1 1 N104P 4749 S 2 4749 Pan Head Screw M2x10 Indicator House Assembly 2 2 N104P 4772 S 23 4772 Pan Head Screw M3x6 SPW...

Страница 118: ...1 Tie Plate 4 HA Sensor 1 Paper Cutter Cover 4 Gear Cover 2 Side Plate R 1 Side Plate L 1 N104P 4972 S 12 4972 Pan Head Tapping Screw ST 3x6 ROM Cover 1 18 Paper Sensor 1 N104P 4975 S 26 4975 Pan Head Screw M3x12 SPW Interlock Harness A Assembly 2 3 LF Motor 4 N104P 4976 S 5 4976 Pan Head Screw M3x6 SW Separating Plate 4 8 Platen Gear 1 N104P 4979 S 16 4979 Pan Head Screw M4x10 SPW Front of Top En...

Страница 119: ...126 ...

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