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EPSON Stylus Photo 720 / EPSON Stylus Photo EX3

Revision A

Operating Principles

Overview

30

2.1 Overview

This section describes the operating principles of the printer mechanism and electrical
circuit boards. The Stylus Photo 720 / Stylus Photo EX3 has the following boards:

o

Main board:

C301MAIN

o

Power supply board:

C301PSB/PSE

o

Panel board:

C209PNL Board (Stylus Photo 720)
C366PNL Board (Stylus Photo EX3)

2.1.1 Printer Mechanism

Stylus Photo 720 / Stylus Photo EX3 is based on Stylus Photo 700 / Stylus Photo EX
and the basic specifications for its mechanism are almost same as Stylus Photo 700 /
Stylus Photo EX.

This printer consists of Print Head, Carriage Mechanism, Paper Feeding Mechanism,
Paper Loading Mechanism, Ink System (Pump Mechanism, Cap Mechanism, and
Carriage Lock Mechanism).

Like other EPSON ink jet printers, the Stylus Photo 720 / Stylus Photo EX3 is
equipped with two stepping motors; one for ASF/ paper feeding/ pump mechanism,
and one for CR mechanism. ASF unit uses rear entry front eject system; this design is
the same as Stylus Photo 750 / Stylus Photo 1200.

For cap assembly, Stylus Photo 720 / Stylus Photo EX3 uses valveless mechanism;
new design for this model.

Figure 2-1 on page 31 shows the outline of the printer mechanism.

The table below shows the compatibility of the mechanical units among Stylus Photo
700, Stylus Photo 750 and Stylus Photo 720.

Table 2-1. Mechanical Unit Compatibility

Stylus Photo 700 /

Stylus Photo EX

Stylus Photo 750 /
Stylus Photo 1200

Stylus Photo 720 /

Stylus Photo EX3

Printhead

E-Chips

U-Chips

E-Chips +

CR motor

(coil resistance)

7.8

Ω

7.8

Ω

7.8

Ω

PF moto

(coil resistance)

7.8

Ω

8.8

Ω

8.8

Ω

ASF unit

---

Quiet noise type

Quiet noise type

Paper feeding

mechanism

Bottom edge: 14mm

Bottom edge: 3mm

enabled

Bottom edge: 3mm

enabled

Pump unit

Type A

Type B

Type A

Capping unit

Valve A

Valve B

Valveless

Frame parts

Stylus Photo 700 type

Stylus Photo 750 type

Stylus Photo 750 type

Main board

C233MAIN

C259MAIN

C301MAIN

PSB/PSE board

C206PSB

C257PSB

C301PSB/PSE

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Summary of Contents for Stylus Photo 720

Page 1: ...EPSON Stylus Photo 720 EPSON Stylus Photo EX3 EPSON STYLUSPHOTO720 STYLUSPHOTOEX3 Color Inkjet Printer SEIJ00001 SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL ...

Page 2: ...the contents of this manual However should any errors be detected SEIKO EPSON would greatly appreciate being informed of them n The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences thereof EPSON is a registered trademark of SEIKO EPSON CORPORATION General Notice Other product names used herein are for identification purpo...

Page 3: ... 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 1 REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN 2 MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE LISTED ON THE SERIAL NUMBER RATING P...

Page 4: ...pson approved lubricants and adhesives required for servicing the product APPENDIXProvides the following additional information for reference Connector pin assignments Electric circuit boards components layout Exploded diagram Electrical circuit boards schematics Symbols Used in This Manual Various symbols are used throughout this manual either to provide additional information on a specific topic...

Page 5: ...Revision Status Revision Issued Date Description Rev A April 6 2000 First Release ...

Page 6: ...e Page Selection Parallel I F IEEE1284 4 Setting 19 Special Setting Mode 20 LED Indications 20 Initialization 21 Errors 21 Paper 22 Paper handling 22 Paper Specification 22 Printable Area 24 Ink Cartridge 26 Physical Specification 27 Consumables and Options 28 Operating Principles Overview 30 Printer Mechanism 30 Printhead 32 Printing Process 33 Printing Method 34 Carriage Mechanism 35 Platen Gap ...

Page 7: ...Removal 77 PF Motor Assembly Removal 78 ASF Assembly Removal 80 ASF LD Roller Assembly Removal 82 LD Roller Assembly Disassembly 87 CR Assembly Removal 88 PE Sensor Assembly Removal 90 PF Roller Assembly Removal 91 CR HP Sensor Removal 93 Adjustment Overview 95 Required Adjustment 95 Adjustment 96 PG Adjustment 96 Adjustment by Adjustment Program 98 Adjustment Program 98 Adjustment Program Install...

Page 8: ...C H A P T E R 1 PRODUCTDESCRIPTION ...

Page 9: ...ures Major features of this printer are as follows o High color print quality n 1440x720 HxV dpi printing n Photo MACH technology 6 color printing CMYKLmLc n Traditional and New Microweave o Built in ASF Auto Sheet Feeder n Holds 100 cut sheets 64 g m2 n Holds 10 envelopes n Holds 30 transparency films o Built in 2 I F n Bi directional parallel I F IEEE 1284 level 1 device n USB Universal Serial B...

Page 10: ...his value is the speed of normal dot printing o Raster graphics mode Refer to the table below CONTROL CODE o ESC P Raster command o EPSON Remote command 4 360 Black Magenta Light Cyan Cyan Light Magenta Yellow 1 32 nozzle Table 1 1 Printing Speed Character Mode Character Pitch Printable Columns LQ speed Stylus Photo 720 10 CPI Pica 80 200 CPS Stylus Photo EX3 10 CPI Pica 114 200 CPS Table 1 2 Prin...

Page 11: ...requency range 50 60Hz n Input frequency range 49 5 60 5 Hz n Rated current 0 4A Max TBD n Power consumption Approx 18W ISO10561 Letter pattern Approx 2 5W in standby mode Energy Star compliant n Insulation Resistance 10 M ohms min between AC line and chassis DC 500V n Dielectric AC 1000 V rms 1 minute or AC 1200 V rms 1 second between AC line and chassis o 220 240V version n Rated voltage AC 220 ...

Page 12: ... range shown in the figure below Figure 1 3 Environmental Condition 1 2 6 Reliability o Total print volume 10 000 pages A4 Letter o Print Head Life 3 billion dots nozzle Or 5 years at the normal temperature Whichever comes first 1 2 7 Safety Approvals o 120V version n Safety Standards UL1950 CSA22 2 No 950 n EMI FCC part15 subpart B class B CSA C108 8 class B o 220 240V version n Safety Standards ...

Page 13: ... Channel Pin No Return GND Pin Signal Name From Function Description 1 19 STROBE PC The strobe pulse for the printer to read data Pulse width requires min 0 5µs 500ns High at normal condition Receives data after shifting Low 2 9 20 27 Data0 7 PC The DATA 1 through DATA8 signals represent data bits 1 8 respectively 10 28 ACKNLG Printer A low signal indicates the printer can accept data Pulse width ...

Page 14: ... Comply with the IEEE 1284 specification Handshaking Comply with the IEEE 1284 specification Logic Level TTL level IEEE 1284 Level 1 device Data trans timing Comply with the IEEE 1284 specification Extensibility request data The printer responds affirmatively when the extensibility request values are 00H or 04H 00H Request Nibble Mode Reverse Channel Transfer 04H Request Device ID Return Data Usin...

Page 15: ...l 2 9 pin is set to appropriate character code against GND Open 1 Short 0 and connect then forcefully to ACK and STRB However to perform this I F selection of EEPROM must be set to Auto Also IEEE 1284 4 packet mode must be set Off The figure below shows the timing chart of the parallel interface Figure 1 4 Timing Chart On the above timing chart Tact rated period is shown below 14 30 HostBusy PC Ho...

Page 16: ...face and USB interface is switched by auto select function The following explains the conditional shift of the I F auto select function and the operations when specific interface is set AUTOMATIC SELECTION In this automatic interface selection mode the printer is initialized to the idle state scanning which interface receives data when it is powered on Then the interface that receives data first i...

Page 17: ... effect on the others The protocol operate over IEEE1284 o Auto An initial state is compatible interface and starts IEEE1284 4 communication when the magic strings 1284 4 synchronous commands are received o On An initial state is IEEE 1284 4 communication and data that received it by the time it is able to take synchronization by magic string 1284 4 synchronous commands is discarded o Off An initi...

Page 18: ...tches each button has several functions The tables below show their functions and how to enter those functions for each button Power Button Load Eject Button Ink Maintenance Button Paper Check LED Black Ink End LED Power LED Color Ink End LED Table 1 9 Panel Functions in Normal State Button Function Load Eject Less than 2 seconds Load or eject paper When the print head is at the ink replacement po...

Page 19: ...tton 4 After 2 seconds the code page setting will be indicated by maintenance LED See the table below NOTE You can check current code page by status print Table 1 10 Panel Function with Turning the Power On Note Button Function Load Eject Start status printing 1 Print Firmware version CPU Mask version Waste ink counter Code page setting Nozzle check pattern Ink maintenance Code page selection Para...

Page 20: ...the error by this operation be sure to replace the waste ink absorber n Whenever you replaced the waste ink counter even when ink maintenance error has not occurred be sure to perform the counter reset by this operation Table 1 13 Special Settings Mode Buttons Function Load Eject Initialize EEPROM and reset timer IC This operation will reset the following items Interface selection 04H CL time 68 6...

Page 21: ...ot performed n Eject paper n Clear the input buffer n Clear the print buffer n Set default values 1 4 5 Errors o Ink Out When the printer almost runs out the ink of any one color it warns ink low and keeps printing When the printer runs out the whole ink of any one color it stops printing and indicates ink out error User is requested to install a new ink cartridge in this state A ink cartridge onc...

Page 22: ...quality Exclusive paper Bond paper PPC o Transparency Glossy paper n Size A4 210 x 297 mm Letter 216 x 279 mm n Thickness 0 075mm to 0 085mm 0 003 to 0 0033 Transparency printing is only available at normal temperature o Envelope n Size No 10 241 3 mm x 104 8 mm DL 220 mm x 110 mm C6 162 mm x 114 mm n Thickness 0 16mm to 0 52mm 0 006 to 0 02 n Weight 45g m2 to 75g m2 12lb to 20lb n Paper quality B...

Page 23: ...paper PPC o Transparency Glossy paper n Size A3 297 x 420 mm A4 210 x 297 mm Letter 216 x 279 mm n Thickness 0 075mm to 0 085mm 0 003 to 0 0033 Transparency printing is only available at normal temperature o Envelope n Size No 10 241 3 mm x 104 8 mm DL 220 mm x 110 mm C6 162 mm x 114 mm n Thickness 0 16mm to 0 52mm 0 006 to 0 02 n Weight 45g m2 to 75g m2 12lb to 20lb n Paper quality Bond paper Pla...

Page 24: ...ght Margin min TM Top Margin min BM Bottom Margin min A4 3mm 0 12 3mm 0 12 3mm 0 12 14 mm 0 54 Letter 3mm 0 12 9mm 0 35 3mm 0 12 14 mm 0 54 B5 3mm 0 12 3mm 0 12 3mm 0 12 14 mm 0 54 Legal 3mm 0 12 9mm 0 35 3mm 0 12 14 mm 0 54 Statement 3mm 0 12 3mm 0 12 3mm 0 12 14 mm 0 54 Exclusive 3mm 0 12 3mm 0 12 3mm 0 12 14 mm 0 54 Table 1 16 Raster Graphics Mode Paper Size LM Left Margin min RM Right Margin m...

Page 25: ...table Area for Envelopes Table 1 17 Envelope Margin Size Left Margin minimum Right Margin minimum Top Margin minimum Bottom Margin minimum 10 3 mm 0 12 28 mm 1 10 3 mm 0 12 14 mm 0 55 DL 3 mm 0 12 7 mm 0 28 3 mm 0 12 14 mm 0 55 C6 3 mm 0 12 3 mm 0 12 3 mm 0 12 14 mm 0 55 LM RM TM BM Printable Area Printable Area ...

Page 26: ...ack Ink Cartridge COLOR INK CARTRIDGE o Type Exclusive cartridge o Color Magenta Cyan Yellow o Print capacity 300 pages A4 360 dpi 5 duty each color o Ink life 2 years from production date o Storage temperature n 20 C to 40 C Storage within a month at 40 C n 30 C to 40 C Packing storage within a month at 40 C n 30 C to 60 C Transit within a month at 60 C o Dimension 42 9mm W x 52 7 mm D x 38 5mm H...

Page 27: ...sical Specification o Dimensions n Stylus Photo 720 429 x 268 x 168 mm WxDxH n Stylus Photo EX3 546 x 275 x 172 mm WxDxH Figure 1 11 Stylus Photo 720 Dimensions Figure 1 12 Stylus Photo EX3 Dimensions o Weight n Stylus Photo 720 approximately 5 2kg n Stylus Photo EX3 approximately 7 0kg 545 53 760 73 406 307 66 ...

Page 28: ... Revision A Product Description Consumables and Options 28 1 7 Consumables and Options The consumables for this printer are following Table 1 18 Consumables Classification No Name Consumables S020187 Ink Cartridge black S020193 Ink Cartridge color ...

Page 29: ...C H A P T E R 2 OPERATINGPRINCIPLES ...

Page 30: ...rs one for ASF paper feeding pump mechanism and one for CR mechanism ASF unit uses rear entry front eject system this design is the same as Stylus Photo 750 Stylus Photo 1200 For cap assembly Stylus Photo 720 Stylus Photo EX3 uses valveless mechanism new design for this model Figure 2 1 on page 31 shows the outline of the printer mechanism The table below shows the compatibility of the mechanical ...

Page 31: ...rinciples Overview 31 Figure 2 1 Printer Mechanism Block Diagram CR Unit Paper Loading Mechanism CR Mechanism Printhead Paper Feed Trigger Lever Position Capping Position CR Motor PF Motor Paper Feeding Mechanism Cap Mechanism Ink System CR Lock Mechanism Pump Mechanism ...

Page 32: ...e to prevent amount of ink from varying by printheads Following explains printhead basic components o PZT PZT is an abbreviation of Piezo Electric Element Certain amount of voltage expands and contracts PTZ The drive wave generated on MAIN board drives PZT and PZT pushes the top cavity which has ink stored to discharge the ink from each nozzle on the nozzle plate o Ink Cavity The ink absorbed from...

Page 33: ...ore PZT does not squeeze the cavity Ink pressure inside the cavity is kept normal Refer to Figure 2 3 2 Ejecting State When the print signal is output from the C301MAIN board IC Nozzle Selector located on the printhead unit latches data once by 1 byte unit An appropriate PZT latched by the nozzle selector is pushed into the cavity by the common voltage applied from the main board By this operation...

Page 34: ...developed to improve the print quality on plain paper or transparencies in low resolution The multiple shot printing mode uses normal dot and the number of dot shots varies from 1 shot to maximum 3 shots depending on the print data to enable sharp image output even in a low resolution o Variable dot printing This printing mode is developed to improve the print quality on exclusive paper This mode ...

Page 35: ...sm The PG adjustment mechanism is designed to keep the platen gap correct for the paper thickness to prevent ink from smearing The PG support lever joins the CR guide shaft which has an eccentricity toward PG support lever Switching the lever from 0 to rotates the CR shaft and changes the platen gap from narrow to wide within the range of 1 14mm to 2 04mm Table 2 3 Platen Gap Adjust Lever Setting ...

Page 36: ...ct roller Stylus Photo 720 Stylus Photo EX3 allows printing up to the last 3mm like Stylus Photo 750 Stylus Photo 1200 The star wheel roller assembly has been shifted 5 degrees from directly on the top of the eject roller towards the paper feed roller This suppresses the tailing edge of the paper so that the old minimum margin of 14mm ex for Stylus Photo 700 Stylus Photo EX has been reduced to onl...

Page 37: ...F motor CCW counterclockwise o Drive transmission to the ASF unit PF Motor pinion gear Combination gear 16 21 6 Spur gear 73 6 Spur gear 26 4 Combination gear 16 40 8 Spur gear 23 2 Spur gear 34 ASF paper load roller shaft Figure 2 7 shows the disengage mechanism and the parts involved When the PF motor torque is switched to the ASF unit side by the disengage mechanism the function of the ASF mech...

Page 38: ...es DE position to the ASF side PF motor revolves CW and ASF home position is detected by ASF HP sensor Then PF motor revolves CCW drives paper return lever and return the paper to the stand by position 2 When the print signal is sent from the PC or the Load Eject button is pressed CR unit moves to the DE lever switching position and switches DE position to the ASF side PF motor revolves CW to let ...

Page 39: ...t 2 1 6 1 Pump Unit and CR Lock Mechanism The pump unit is driven by PF motor PF motor drive is always transmitted to the paper feeding mechanism and pump unit and therefore pump unit and CR lock mechanism drives according to the PF motor rotational direction as shown in the table below Table 2 6 PF motor rotational direction Ink System Mechanism 1 The PF Motor rotational direction seen from the P...

Page 40: ...hoto EX3 uses valveless system Air valve function used for the previous models pumps and ejects ink only inside the cap by sucking ink with the valve open Valveless system is developed by changing the ink sequence When sucking ink only inside the cap false absorption Stylus Photo 720 Stylus Photo EX3 moves printhead to the left from the cap unit out of the cap and drives pump to perform false abso...

Page 41: ...color from mixing Stabilizes ink surface inside the nozzle n CL1 Ink absorption Black Ink 0 24ml Color Ink 1 19ml Wiping operation Wipes nozzle plate by the rubber part on the right half of the wiper Flashing operation Prevents color from mixing Stabilizes ink surface inside the nozzle n CL2 Ink absorption Black Ink 0 21ml Color Ink 1 059ml Wiping operation Wipes nozzle plate by the rubber part on...

Page 42: ...f the printer power is turned off through the panel switch Even if the printer is turned off through the panel switch while it is in operation the printer turns the power supply off after performing the capping operation to prevent ink leakage or dry printhead nozzles that may be caused when the printhead is left without capping AC voltage input from AC inlet first goes through filter circuit that...

Page 43: ...ine over voltage line over current protection circuit This protection circuit is in the same line as the 42V over voltage protection circuit is located The output voltage level of the 5V line is monitored by a Zener diode This circuit shuts down the 5V line forcefully when the voltage level exceeds 9V o 42VDC line over current protection circuit The output voltage is monitored by two transistors W...

Page 44: ...13 for the C301MAIN board block diagram Figure 2 13 Block Diagram for the C301MAIN Board C209 PNL Stylus Photo 720 C366 PNL Stylus Photo EX3 P ROM IC3 D RAM IC17 3 3V Regulator IC IC16 Power CN10 CPU HD64F2328 F IC1 Parallel I F Receiver IC 74LV161284 IC9 E05B70 IC2 USB I F ReceiverIC IC10 CN3 CN5 CN4 CN6 CN11 Timer Reset IC IC5 EEPROM IC6 Common Driver IC15 Q2 Q3 CN8 HD FFC CN9 HD FFC CR Sensors ...

Page 45: ...tuated The selected nozzles are driven by the drive waveforms produced by the common driver See Figure 2 14 for the printhead driver circuit block diagram Table 2 8 Main Elements IC Location Function CPU HD64F 2328F IC1 3 3V 16bit CPU mounted on the MAIN board is driven by clock frequency 24MHz and controls the printer Gate Array E05B70 IC2 3 3V 5 0V Motor Control Head voltage control EEPROM contr...

Page 46: ...erred to the nozzle selector IC through the seven signal lines SI0 to SI6 Data transmission from the ASIC to the nozzle selector synchronizes with the SCK clock signal and the LAT signal Referring to the transferred data nozzles to be activated are selected and the PZTs of the selected nozzles are driven by the drive waveform output from the head common driver V C C 4 5 V c c 4 5 _ 2 N P N B F B P...

Page 47: ...he current value on each phase is determined by ASIC IC2 and outputs from port 109 110 111 113 114 115 to driver IC IC14 Motor driver IC generates motor driver waveform based on these input signals and controls the motor Figure 2 15 PF Motor Driver Circuit Block Diagram D A 1 P F E N B A P F E N B B P F P H A A P F P H A B 1 0 8 1 1 6 1 0 7 1 1 8 P F A I 1 P F A I 2 P F A I 3 P F B I 1 P F B I 2 P...

Page 48: ...nal to reset CPU IC1 and ASIC IC2 This function is necessary to prevent the printer from operating abnormally This IC monitors both 5V and 45 lines but can reset them independently The reset circuits outputs reset signal when 5V line becomes 4 3V or lower or 42V line becomes 35 5V or lower Reset ICs have built in timer function which manages timer control based on lithium battery Figure 2 17 Reset...

Page 49: ...unter waste pad counter etc n Mechanical setting value Head ID Bi D adjustment USB ID etc n Destination data printable area setting CG setting etc n Option setting CPSI password etc See Appendix for EEPROM Address Map that provides detailed information on the values stored in EEPROM Figure 2 18 EEPROM Circuit Diagram EEPROM is connected to ASIC with 4 lines and each line has the following function...

Page 50: ...sitioned between photo sensor terminals the sensor detects ASF HP When this window is within the ASF HP the sensor outputs 0V and when it is out of ASF HP 5V is output This sensor detects the ASF return lever position at the power on and detects standby state of the ASF LD roller o Thermistor TH The thermistor is attached directly on the printhead driver board It monitors the temperature around th...

Page 51: ...C H A P T E R 3 TROUBLESHOOTING ...

Page 52: ...r o u b l e s h o o t i n g U n i t R e p a i r P S B P S E U n i t R e p a i r M a i n b o a r d D i s a s s e m b l e a n d A d j u s t m e n t U n i t R e p a i r P r i n t e r M e c h a n i s m Table 3 2 Sensor Check Point Sensor Name Check Point Signal Level Switch Mode HP Sensor CN4 Pin 1 and 2 Less than 0 7V Open Out of HP range More than 2 4V Close Within HP range PE Sensor CN5 Pin 1 and 2...

Page 53: ...ace the ink cartridge with new one Ink End No Cartridge color On Close the cartridge cover properly or replace the ink cartridge with new one Ink Low black Blink Replace he ink cartridge with new one Ink Low color Blink Replace he ink cartridge with new one Maintenance Request Blink Blink Blink Blink Replace the waste ink pad and reset the waste ink counter stored in EEPROM See Special Settings Mo...

Page 54: ...Ds do not light Printer mechanism does not operate Flowchart 3 1 Error is detected Error is indicated by LED indication Flowchart 3 1 Failure occurs during printing Printing is not performed Abnormal printing dot missing etc Print quality is poor Flowchart 3 1 Printer does not feed paper correctly No paper is fed Paper feed is irregular Paper jam occurs Flowchart 3 1 Control panel operation is abn...

Page 55: ...Refer to Unit Repair Printer Mechanism Replace the waste ink pad and reset the EEPROM Check the ink cartridge sensor and replace the printhead if necessary Replace the ink cartridge Replace MAIN board if the CR motor operates properly Start Yes Print a self test No No No No No No No No Yes Yes Yes Yes Yes Yes Yes End End End Perform adjustment Perform cleaning Connect them Refer to Unit Repair Pri...

Page 56: ...er and platen rotate Is the PF motor running NO NO NO YES Check the PF motor No problem replace the MAIN board YES Remove any obstruction in the paper path if there is any Clean the roller of paper path Is the problem solved Refer to Unit Repair Printer Mechanism YES NO END END Control panel connected correctly START Connect the control panel correctly NO NO NO YES YES YES END END Is the problem s...

Page 57: ...int Table 3 5 Repair of the Power Supply Board Symptom Condition Cause Check point Solution The printer does not operate at all 42VDC line does not work F1 is open Check F1 is normal or not by using a multimeter Replace F1 Trans T1 is open Check T1 is normal or not by using a multimeter Replace T1 FET Q1 is broken Check the drain waveform Replace Q1 Q2 or Q3 is broken Check the collector wave Repl...

Page 58: ...he printer does not operate at all CPU does not work Reset circuit is broken Check 5VDC line Pin 7 of IC5 and reset signal Pin 2 of IC5 Replace IC8 ROM is not selected correctly Check that the waveform of Pin 11 of IC3 reverses High Low Replace IC3 CPU is broken Check the signal waveform Pin 86 of IC1 Replace IC2 5V Ý RESET Carriage does not operate correctly CR motor does not operate properly IC2...

Page 59: ... OUT Pin 7 6 9 8 is output from IC14 If OUT is not output from IC14 replace IC14 Abnormal printing Printing is not performed or the print data is turned to the set of unrecognizable characters IC2 is broken Check the signal waveform of DATA Pin 29 of IC15 and Common NPNB PNPB Pin 20 16 If DATA is not input replace IC2 IC15 is broken Check the output waveform of NPNB PNPB FB of IC15 If no output si...

Page 60: ...il resistance and see if there is any disconnection of the coil Refer to Table 3 1 Motor Coil Resistance on page 52 Exchange the PF motor Defective pump absorption Dot missing is not solved even after cleaning operation Used ink is not drained to the waste ink pad The pump tube is squashed Check the tube visually Exchange the tube The cap is damaged or deformed Check the cap visually Exchange the ...

Page 61: ...riage moves but no printing is performed Head FFC is not connected properly Check visually if the head FFC on the carriage or on the board is connected properly Connect FFC properly FFC is disconnected inside Check the FFC by using a multimeter if there is any electric conductivity Replace the FFC I C is defective Install a new I C and perform the self test Replace I C Head Unit is defective If th...

Page 62: ...s defective Check connection with the head FFC Replace the head if there is no connection problem with the FFC Table 3 7 Repair of the Printer Mechanism Symptom Condition Cause Check Point Solution Abnormal Printing A vertical line is not aligned Bi directional alignment is not adjusted Perform Bi D adjustment Refer to Chapter 5 Adjustment White line appears in the image data Head angle is not cor...

Page 63: ...eet Replace the PF roller if the problem is not solved PE sensor is defective Check if PE sensor lever moves smoothly Check if the assembly with the right paper guide is made correct and check if there is any foreign substances Replace the PE sensor assembly Re assemble each part and remove foreign substances Table 3 7 Repair of the Printer Mechanism Symptom Condition Cause Check Point Solution Pr...

Page 64: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...

Page 65: ...oded diagrams in the appendix Read precautions below before starting 4 1 1 Precautions A lithium battery is installed on the MAIN Board of this printer for backing up the system clock Mishandling the battery may cause explosion or short Read carefully the following precautions 4 1 2 Tools Use only specified tools to avoid damaging the printer W A R N I N G Danger of explosion if the battery is inc...

Page 66: ...ture Not too heated o Checked o Not necessary Paper Feeding Mechanism Is paper advanced smoothly No paper jamming No paper skew No multiple feeding No abnormal noise o Checked o Not necessary Is the PF Motor at correct temperature o Checked o Not necessary Is the paper path free of any obstructions o Checked o Not necessary Adjustment Specified Adjustment Are all the adjustment done correctly o Ch...

Page 67: ...d Removal Page 73 Pump Cap Assy Removal Page 75 CR Motor Assy Removal Page 77 PF Motor Assy Removal Page 78 CR Assy Removal Page 88 PE Sensor Assy Removal Page 90 PF Roller Assy Removal Page 91 CR HP Sensor Removal Page 93 Housing Removal Page 68 Circuit Board Assy Removal Page 69 Ink Absorber Tray Assy Removal Page 72 Printer Mechanism Disassembly Page 73 Control Panel Removal Page 71 ASF Assy Re...

Page 68: ... the PG Adjust Lever to position 2 Remove 4 screws and remove the Housing Figure 4 2 Housing Removal C H E C K P O I N T When removing the Housing be sure to keep the Housing out of carriage Pull the Housing toward the printer front side and lift it upward When installing the Housing be careful not to pinch the cable with the screw at the rear side of the Housing Make sure the Head FFC is set prop...

Page 69: ...der installed on the M B Shield Plate 4 Disconnect all the cables from the connectors on the C301MAIN Board 5 Remove the Circuit Board Assembly from the Printer Mechanism 6 When removing each board unit from M B Shield Plate remove screws securing each board C301MAIN Board 10 screws C301PSB PSE 4 screws and remove the boards respectively NOTE When removing each board separately release the lock of...

Page 70: ...age ID Input on page 101 n Bi D Adjustment See Bi Directional Adjustment on page 106 n USB ID Input See USB ID Check Input on page 109 C H E C K P O I N T When the MAIN Board is replaced the value of Ink Cartridge Consumption Counter and the Waste Pad Counter is reset So replace the following parts as well Refer to Special Settings Mode on page 20 and Protection Counter Check Clear on page 111 n I...

Page 71: ... Assembly Stylus Photo EX3 C366PNL 5 Remove FFC from the connector on the C209PNL Board Stylus Photo EX3 C366PNL NOTE The panel board of Stylus Photo EX3 is C366PNL Figure 4 5 Control Panel Removal C H E C K P O I N T By removing the Control Panel the Stacker Assembly can be also detached from the Printer Mechanism since it is held by the Control Panel Assembly S h i e l d P l a t e P a n e l B o ...

Page 72: ...y by pulling it downward Stylus Photo EX3 the Ink Absorber Tray Assembly and the Right Left Side Cases are combined By removing the Ink Absorber Tray Assembly therefore the Right Left Side Cases are removed along with Figure 4 6 Ink Absorber Tray Assembly Removal C A U T I O N Be sure to reset the Waste Ink Counter when replacing the Ink Absorber Tray Assembly or Ink Absorber Ink Pad inside The Wa...

Page 73: ...m the right side of the CR Assembly 6 Lift the Printhead upward and remove it from CR Assembly Carefully remove 2 Head FFCs from the connector on the Printhead Board Figure 4 7 Printhead Removal Head Fastener Printhead Torsion Spring 49 C A U T I O N n When removing the Head FFCs from the Printhead Board do not pull two FFCs together As shown in the figure below one of the Head FFCs is inserted to...

Page 74: ...nding plate This part should contact with the CR Bushing Head Grounding Plate This protrusion must be in the U groove of the printhead Pinthead Top View C H E C K P O I N T n Install a new cartridge before sending back the printer to the user since the ink cartridge once taken out can not be used again n Installation of I C must be carried out by I C replacement sequence Otherwise ink may not be e...

Page 75: ...up the right side of Cap Assembly 8 Carefully pull out the Cap Assembly toward the top of the Printer Mechanism However Cap Assembly is still connected to the Pump Assembly by the ink tube 9 Remove the Ink Tube from the bottom of the Cap Assembly 10 Stand up the Printer Mechanism so that you can see the bottom of the Printer Mechanism 11 Remove 2 screws securing the Pump Assembly to the frame and ...

Page 76: ...any stress on the ink tube connecting the Pump Assembly and the Cap Assembly Refer to the Figure 4 12 After installing the Pump Assembly rotate the Combination Gear 12 4 28 and check if the Head Cleaner moves back and forth Perform this check while holding the Cap Assembly to the right of the frame H e a d C l e a n e r P u m p C o m p o n e n t s A s s e m b l y O r d e r O K N G V i e w e d f r ...

Page 77: ... Pulley Holder to the top refer to the arrow in the figure below Figure 4 13 Timing Belt Removal 4 Remove 2 screws securing the CR Motor and remove CR Motor Assembly Figure 4 14 CR Motor Assembly Removal C H E C K P O I N T When installing CR Motor Assembly be sure that 2 projections of the Motor Bracket are inserted to the position marking holes of the frame Compression Spring 19 6 Driven Pulley ...

Page 78: ...aft and remove it from the right side of the Paper Eject Frame towards the front side of the printer Then move the CR Unit to the center of the CR Shaft and remove the left side of the Paper Eject Frame towards the front side of the printer Refer to Figure 4 16 Figure 4 16 Front Frame and Paper Eject Frame Removal 6 Release 2 hooks attaching the Front Paper Guide to the Paper Eject Roller and remo...

Page 79: ...19 PF Motor Assembly Installation C H E C K P O I N T n When removing the PF Motor Assembly first slightly pull out the PF Motor Assembly from the frame and slide the Motor Shaft to a larger cutoff of the frame and remove it n Be careful for the routing direction of the cable from the PF Motor Assembly Refer to Figure 4 19 PF Motor Pinion Gear 3 Hexagon Nuts Securing the PF Motor C a b l e D i r e...

Page 80: ...Cable Hook is located at the right side seen from the back side of the printer 4 Remove 1 screw with washer securing the ASF Assembly to the Printer Mechanism and ASF securing screw Figure 4 21 ASF Securing Screw Removal 5 Shift the ASF Assembly to the right seen from the back side of the printer and while lifting the Sub Paper Support remove the ASF Assembly to the back side of the printer Stylus...

Page 81: ...tions below The position is seen from the back side of the printer ASF right side ASF Securing Screw ASF left side Screw with Washer Refer to Figure 4 21 ASF Left Protrusion Installation Point C A U T I O N n When installing the ASF Assembly be careful not to pinch any motor or sensor cables under the ASF Especially if the cables from the motor are pinched there is a danger of short circuit and po...

Page 82: ...e Left ASF LD Assembly on the left to the center and remove the Left ASF LD Roller Shaft Fixing Bushing white Refer to Figure 4 26 Stylus Photo EX3 Left LD Roller Shaft Fixing E Ring 4 Push the LD Roller Shaft to the left and remove the ASF HP Detection Wheel from the end of the shaft Refer to Figure 4 26 Figure 4 26 ASF LD Roller Fixing Bushing and ASF HP Detection Wheel Stylus Photo 720 Stylus P...

Page 83: ...ning Point 7 Carefully remove the Compression Spring 1 961 Refer to Figure 4 34 from both sides between the ASF Hopper Assembly and the R L ASF LD Roller Assembly 8 Shift the ASF LD Roller Shaft to the left and remove the LD Roller Shaft from the ASF LD Roller Shaft hole of the right side of the ASF Frame 9 Remove the LD Roller Assembly from the LD Roller Shaft ASF Hopper Assembly ASF Hopper Upper...

Page 84: ... During disassembly and assembly of the ASF Hopper Assembly do not let the grease on the cam parts touch other parts Wipe off any grease smeared on other parts n Be careful of the direction of the Hopper Release Lever when installing it Refer to Figure 4 30 n Make sure the LD Roller Assembly is installed firmly to the rail of the ASF Frame Refer to Figure 4 31 n Make sure the Left Frame of the lef...

Page 85: ...installing the Right LD Roller Assembly to the ASF Frame make sure the Right LD Roller Assembly is locked by the hook on the back of the right side of the ASF Frame Refer to Figure 4 33 n Before installing the ASF Hopper Assembly to the LD Roller Assembly set the Compression Spring 1 961 to the spring installation hook of the LD Assembly temporarily After assembling move the LD Roller Assembly to ...

Page 86: ...PSON Stylus Photo 720 EPSON Stylus Photo EX3 Revision A Disassembly and Assembly Disassembly 86 Figure 4 34 Compression Spring 1 961 Temporary Fixing Position Compression Spring 1 961 Screw Fixing Hooks ...

Page 87: ...ssembly LD Roller Assembly Fixing Hooks LD Roller Cover C H E C K P O I N T n Before installing the ASF Hopper Assembly to the LD Roller Assembly set the Compression Spring 1 961 to the spring installation hook of the LD Assembly and hang the bent part of the spring on the hook After assembling the unit do not forget to unhook the springs by rotating the spring from the holes located at the back o...

Page 88: ... Removal 5 Move the Driven Pulley Holder to the right and remove it from the frame 6 Release 2 PG Lever securing hooks from the Right Frame and remove the PG Lever Figure 4 39 PG Lever Hook Release 7 Release1 hook of Sub PG Lever and remove the Sub PG Lever and Spring Washer from the right end of the CR Guide Shaft 8 Remove 1 screw securing the Right Parallelism Adjust Bushing to the Right Frame F...

Page 89: ...n When installing the CR Assembly to the CR Guide Shaft make sure the Oil Pad is set to the specified position of the CR Assembly n When the Oil Pad is especially dirty replace the Oil Pad with a new one which is lubricated with the specified amount of oil Right Parallelism Adjust Bushing Frame Right Cutoffs CR Guide Shaft A D J U S T M E N T R E Q U I R E D Perform following adjustments after rem...

Page 90: ...ssembly by sliding it upward Figure 4 42 PE Sensor Assembly Removal Figure 4 43 PE Sensor Lever Head Setting Position After releasing two hooks remove the PF Sensor Assembly sliding it upward From back side of the frame PE Sensor Holder This side should be installed on the frame Torsion Spring 0 22 PE Sensor Lever PE Sensor Board Assembly C H E C K P O I N T When installing the PE Sensor Assembly ...

Page 91: ... remove the Front Frame from the Printer Mechanism See Figure 4 45 5 Remove 2 screws to remove the Paper Eject Frame from the Printer Mechanism When removing the Paper Eject Frame from the Printer Mechanism shift the CR Unit to the CR Shaft left direction by hand and remove it from the Paper Eject Frame toward the front side of the Printer Mechanism Then shift the CR Unit to the center of the CR S...

Page 92: ...stallation C H E C K P O I N T n When reinstalling the Right Upper Paper Guide let the head of the PE Sensor Lever go through the cutoff of the Right Upper Paper Guide from the front side of the printer n Be careful not to damage the hook when removing or installing the Front Paper Guide n Be careful not to damage the gray coated part of PF Roller Assembly during disassembly and assembly n Be care...

Page 93: ...sassembly and Assembly Disassembly 93 4 2 5 11 CR HP Sensor Removal 1 Remove the Housing Housing Removal on page 68 2 Disconnect the cable from the CR HP Sensor and remove it by releasing its hook Figure 4 49 HP Sensor Removal Sensor Securing Hook CR HP Sensor ...

Page 94: ...C H A P T E R 5 ADJUSTMENT ...

Page 95: ...ustment Performance Priority 1 2 3 4 4 5 Service Replacing parts PG Adjustment Initial Ink Charge Head voltage ID Input Head Angular Adjustment Bi D Adjustment USB ID check input Replacing the Printer Mechanism NA Q R NA S NA Replacing the MAIN Board NA NA Q NA R S Replacing the Printhead Unit NA Q R S T NA Replacing the CR Motor NA NA NA NA Q NA Replacing or removing the CR Assembly Q NA NA R S N...

Page 96: ...ness gauge 5 Move the Right Parallelism Adjust Bushing to the rear until the thickness gauge starts moving with the carriage when you move the carriage about 20mm right and left When you move the Right Parallelism Adjust Bushing to the rear gap will be narrowed If the thickness gauge already moves with the carriage move the Right Parallelism Adjust Bushing to the front gap will be widen C A U T I ...

Page 97: ...ss gauge does not move Figure 5 2 Paper Gap Adjustment Adjusting Method 7 Perform the same procedures above from 1 to 6 for the Left Parallelism Adjust Bushing o Check the Gap After completing the adjustment for Left Parallelism Adjust Bushing check the PG at the right side again o Fixing Right Left Parallelism Adjust Bushing After completing the PG Adjustment fix the Right Left Parallelism Adjust...

Page 98: ...e 5 3 Main Menu 5 3 2 Adjustment Program Installation Procedure This adjustment program is in the 3 5 2HD FD The first FD is the installer disk When you execute Setup exe the installation of the program will be started under Windows 95 98 After installation is completed the Stylus Photo 720 EX3 for Win95 or Win98 icon will be automatically made in the program menu Go Start Program Adjustment Progr...

Page 99: ...will not operate Figure 5 4 Model Name Selection To check the version of the program click Version The following screen appears to provide you with version information NOTE This printer stores its model name in the PROM Therefore even you select the model name in the screen above model name will NOT stored in the EEPROM Selecting model name in the screen above determines special commands which dif...

Page 100: ...ure 5 7 Start Program and Check the Model Name 4 To enter the main menu select Boot this program and click OK 5 3 4 Market Destination Check You can read out the market destination determined in the initial setting screen from EEPROM by this function 1 From the adjustment program main menu see the left frame in the figure below select Market destination check Market destination check screen appear...

Page 101: ...10 Check Present Data C H E C K P O I N T n Perform this adjustment when the following repair service is made n Replacing the Head n Replacing MAIN board n Replacing Printer Mechanism n Perform the adjustment items described in Table 5 1 according to the replacement parts in the specified order C H E C K P O I N T n Check the present head voltage ID before you replace the MAIN board If the logic c...

Page 102: ...ht of the 2nd line 4 When the head voltage ID is correctly input the following screen appears Figure 5 12 Head Voltage ID Input 2 If the head voltage ID is not correctly input the following errors will be indicated on the bottom of the screen according to the error type o The number of digit is wrong This error message is indicated when the number of digits you entered is less than 10 digit When y...

Page 103: ...e special pattern print The following is the adjustment procedure 1 Select Head angular adjustment from the adjustment program main menu The following screen appears Figure 5 13 Head Angular Adjustment 2 Select Print the head angular adjustment pattern and click OK The following pattern will be printed Figure 5 14 Head Angular Adjustment Pattern C H E C K P O I N T n Perform this adjustment when t...

Page 104: ...securing the printhead and located at the right side of the CR NOTE When loosing tightening the head securing screw hold the CR unit If you do not hold the CR unit the upper frame will be deformed resulting the poor image quality Figure 5 16 Printhead Securing Screw Position C A U T I O N Do not let the printer alone for 5 minutes If the printer is left alone for 5 minutes the CR motor would not b...

Page 105: ... position to the rear side of the printer Figure 5 17 Head Angular Adjustment Lever Adjusting Method 6 Select Print the head angular adjustment pattern and perform the test print According to the test result repeat from step 2 to step 5 7 When the adjustment is completed select Move the carriage to the adjustment position again and move the CR unit to the adjustment position Tighten the head secur...

Page 106: ...nted Figure 5 20 Print the Bi D adjustment pattern Figure 5 21 Bi d Print Pattern 3 The central lines of the print pattern show the current adjustment value Check the central lines of the print pattern If all three lines are aligned the adjustment is not required If the central three lines are not aligned you have to input the appropriate value The following steps are the adjustment procedure C H ...

Page 107: ...ng print pattern data number from the print pattern gap When value is input the second line pattern will be shifted to the right When value is input the second line pattern will be shifted to the left 8 Click Previous in the screen in Figure 5 23 to check the adjustment pattern after adjustment value is input The screen goes back to the one in Figure 5 22 Select Previous from the screen in Figure ...

Page 108: ... A Adjustment Adjustment by Adjustment Program 108 NOTE You can check the present adjustment data by selecting Check present adjustment data from the Bi Directional adjustment main menu Figure 5 19 and clicking OK Figure 5 24 Check Present Adjustment Data ...

Page 109: ...can generate individual USB port based on USB ID to supervise each port correctly The following is the procedure of inputting USB ID 1 Select and click USB ID check input from the adjustment program main menu The following screen appears Figure 5 25 USB ID check input 2 Select USB ID check input and click OK The following screen appears Figure 5 26 USB ID Input 1 C H E C K P O I N T n When inputti...

Page 110: ...the USB ID check input main menu Note this function is valid only under Windows98 environment See Figure 5 25 this menu is in shadow in Figure 5 25 since this function is not valid under Windows95 By selecting this menu A4 pattern will be printed 5 3 9 Head Cleaning This item is selected from the maintenance program main menu When dot missing is occurred execute this program to perform the head cl...

Page 111: ...nter check clear The following screen appears Figure 5 30 Protection Counter Check Clear 2 In the screen above select Check the present counter values and click OK The following screen appears C H E C K P O I N T n Perform this adjustment when the following repair service is made n Replacing the head n Replacing the Printer Mechanism n Perform the adjustment items described in Table 5 1 in the app...

Page 112: ...ion 4 If the counter value reaches 25000 points replace the Waste Ink Pad Ink Absorber and clear the protection counter The procedure to clear the protection counter is described in step 5 5 Click Previous in the screen in Figure 5 32 The screen goes back to Protection counter check clear menu Figure 5 30 Then select Clear the protection counter values and click OK The following screen appears Fig...

Page 113: ...ompleted o Nozzle check pattern If dot is not missing and each nozzle print pattern is uniformly printed it is OK o Alignment pattern Check the alignment on each nozzles on Uni d print and the alignment of black and each color o Head angular adjustment pattern o Head actuator voltage ID o Ink waste pad counter value o Bi D check pattern Print A4 pattern UI is shown below Click OK The A4 pattern wi...

Page 114: ...C H A P T E R 6 MAINTENANCE ...

Page 115: ...se a vacuum cleaner to remove any paper dust o ASF LD Roller If paper dust on the surface of ASF LD Roller lowers the friction set the adhesive surface of the cleaning sheet included in the media to the surface of the ASF roller and repeat loading paper from the ASF C A U T I O N n Never use chemical solvents such as thinner benzine and acetone to clean the exterior parts of printer like the housi...

Page 116: ...in stand by state the Power indicator is not blinking and press Maintenance button on the control panel 2 After performing the head cleaning sequence perform the print check If you repeat cleaning without print check the weakest cleaning CL1 will be repeated o Maintenance Request Error Ink is used for cleaning operation as well as printing When ink is used for cleaning the ink is drained to Waste ...

Page 117: ...A half turn of PF roller Apply grease while rotating spur gear 36 attached at the left end of PF roller Do not attach the grease to the paper path Use a syringe to apply it 2 Lubrication Point Amount Contact point between PF roller of the front paper guide and hook 1 point lubrication amount 10mm Contact point between paper eject roller of the front paper guide and hook 2 points lubrication amount...

Page 118: ...s between hopper and hopper release lever Lubrication Type G 26 Lubrication Amount Evenly apply lubrication to the points Evenly apply lubrication to the contact point with hopper release lever cam Completely wipe off any grease sticking out to the inner side of ASF Table 6 2 Lubrication Point No Lubrication Type Point Remarks 11 Lubrication Point The round cutout in the left frame of ASF Spur gea...

Page 119: ...n A Maintenance Overview 119 No 1 No 2 No 3 Upper Frame No 11 Spur Gear 34 No 4 Spur Gear 73 6 Combination Gear 16 40 8 No 4 Spur Gear 23 2 No 5 Combination Gear 16 40 8 Shaft No 4 Combination Gear 16 21 6 No 6 Bush 12 Inside No 7 Bushing 6 Shaft Receiver ...

Page 120: ...on A Maintenance Overview 120 Driven Pulley Holder No 8 ASF Hopper Assembly No 10 ASF Frame No 9 No 12 CR Oil Pad Amount of Oil 0 7cc Never apply more than specified Carriage CR Guide Shaft 5cm 5cm CR Unit Flags Dispenser Front Side of the Printer No 13 ...

Page 121: ...C H A P T E R 7 APPENDIX ...

Page 122: ...d PF Motor C301 MAIN Board C301 PS Board Printer Mechanism Table 7 1 Connector Summary for C259Main Connector Function Table to refer CN1 Parallel Interface Connector Refer to IEEE 1284 Parallel I F Forward Channel on page 13 CN2 USB Interface Connector Refer to USB Universal Serious Bus on page 16 CN4 HP Sensor Table 7 2 CN5 PE Sensor Table 7 3 CN6 ASF Sensor Table 7 4 CN7 PF Motor Table 7 5 CN8 ...

Page 123: ...ct signal 7 GND Ground 8 VDD Out Nozzle selector 5V power supply 9 GND Ground 10 VHV Out Nozzle selector 42V power supply 11 GND2 Ground 12 GND2 Ground 13 GND2 Ground 14 COM Out PZT drive signal 15 COM Out PZT drive signal 16 COM Out PZT drive signal Table 7 7 Connector CN9 Pin Signal Name I O Function 1 NCHG Out All nozzle drive signal 2 GND Ground 3 SCK Out Serial data clock signal 4 GND Ground ...

Page 124: ...or CN11 Pin Signal Name I O Function 1 SW2 In Panel switch on off signal 2 SW0 In Panel switch on off signal 3 PSC In Power on off switch 4 SW1 In Panel switch on off signal 5 LED3 Out Panel LED signal 6 5V Out 5V panel board power supply 7 5V Out 5V panel board power supply 8 LED2 Out Panel LED signal 9 GND Ground 10 LED1 Out Panel LED signal 11 GND Ground 12 LED0 Out Panel LED signal Table 7 10 ...

Page 125: ...ed 00H 0EH Reserved 00H 0FH Reserved 00H 10H CPSI password 00H 00H 11H CPSI password 00H 00H 12H CPSI password 00H 00H 13H CPSI password 00H 00H 14H CPSI password 00H 00H 15H CPSI password 00H 00H 16H Print direction control 0 Bi D 1 Uni D 2 Auto 02H 02H 17H CG table 0 PC 437 1 PC 850 00H 00H 18H Font 0 Courier 00H 00H 19H Pitch 0 10cpi 00H 00H 1AH Auto LF Network I F mode bit1 Network I F mode 0 ...

Page 126: ...ved 00H 3DH 00H 3EH Reserved 00H 3FH 00H Table 7 11 EEPROM Address Map continued Address Explanation Settings QPIT Settings Factory Settings 40H Password 0FH 41H 5AH 42H Ink flag 1 bit7 Reserved bit6 Black one time bit5 Color one time bit4 Initial fill required bit3 Reserved bit2 Ink cleaning seq bit1 Bk CL required bit0 Color CL required 00H 10H 43H Ink flag2 bit2 YMC cartridge changed and cleane...

Page 127: ...00H 00H 65H 00H 00H 66H Ink counter Rv80 00H 00H 67H 00H 00H 68H CL time 00H 2 69H 00H 2 Table 7 11 EEPROM Address Map continued Address Explanation Settings QPIT Settings Factory Settings 6AH Reserved 00H 00H 6BH 00H 00H 6CH Power off time 00H 00H 2 6DH 00H 00H 2 6EH Reserved 00H 6FH 00H 70H Accumulatedprinting time 00H 00H 71H 00H 00H 72H Reserved 00H 00H 73H 00H 00H 74H 00H 00H 75H 00H 00H 76H ...

Page 128: ... continued Address Explanation Settings QPIT Settings Factory Settings D4 Reserved 00H D7H 00H D8H Custom EEPROM sub number 00H 00H D9H 00H 00H DAH 00H 00H DBH 00H 00H DCH Panel mask function bit7 Entry Self Test bit6 Entry Hex Dump bit5 Extended settings bit4 Reserved bit3 Reserved bit2 Cleaning bit1 Replace I C bit0 Load Eject 00H 00H DDH Reserved 00H DEH 00H DFH 00H E0H Market ID 0 STD 2 Custom...

Page 129: ...SON Stylus Photo 720 EPSON Stylus Photo EX3 Revision A Appendix Component Layout 129 7 2 Component Layout Figure 7 2 C301MAIN Component Layout Parts Side Figure 7 3 C301MAIN Component Layout Soldered Side ...

Page 130: ...hoto 720 EPSON Stylus Photo EX3 Revision A Appendix Component Layout 130 Figure 7 4 C301PSB Component Layout Figure 7 5 C301PSE Component Layout Figure 7 6 C209PNL Component Layout Figure 7 7 C366PNL Component Layout ...

Page 131: ...oto 720 Figure 7 8 Stylus Photo 720 Exploded Diagram 1 No 1 10165 127 for color version without color version 182 188 for color version PM 760C CB CT CS 500 126 102 115 101 180 124 129 124 129 134 100 751 770 770 752 752 769 753 126 135 106 130 132 133 450 105 125 122 104 103 400 189 without color version 181 185 Rev 01 ...

Page 132: ...40 747 707 710 748 739 736 737 744 716 717 718 723 719 735 722 725 724 587 503 750 587 504 534 587 530 532 590 573 501 502 592 757 756 758 557 587 565 568 567 587 506 558 556 587 559 505 587 116 108 108 114 112 122 122 200 122 122 122 587 300 598 122 122 330 128 510 511 587 113 122 111 109 581 580 579 122 121 131 121 122 587 591 721 720 708 713 712 711 714 703 703 764 709 PM 760C CB CT CS 10165 No...

Page 133: ...587 587 550 549 548 551 545 550 549 548 551 545 550 549 548 566 563 702 561 701 703 562 564 705 706 507 759 760 184 183 761 700 704 515 516 522 527 535 529 531 508 587 765 530 576 509 119 572 570 514 589 571 536 538 542544 542 544 587 587 551 545 550 549 548 551 547 550 549 548 551 542544 512 587 542 544 542544 542 544 542544 542 544 544 542 544 544 544 544 541 539 542 543 540 542 542 542 587 544 ...

Page 134: ...EPSON Stylus Photo 720 EPSON Stylus Photo EX3 Revision A Appendix Exploded Diagram 134 Figure 7 11 Stylus Photo 720 Packing Materials 01 03 04 03 05 Rev 01 No 4 PM 760C CB CT CS 10165 06 ...

Page 135: ... Exploded Diagram 1 B B 500 105 122 122 129 116 450 110 108 122 122 107 100 115 127 109 766 765 766 728 124 124 124 124 125 125 758 758 PM 2200C EPSON STYLUSPHOTO EX3 No 1 Rev 01 10196 102 727 727 726 126 126 735 765 765 765 101 101 101 101 101 126 411 412 123 411 123 185 773 181 186 183 182without JPN for JPN for JPN For JPN for JPN ...

Page 136: ...69 714 702 705 709 700 704 713 740 774 754 774 742 756 756 756 743 774 742 720 736 754 501 544 723 761 517 558 572 572 550 556 573 560 574 122 554 122 122 122 122 122 122 122 122 122 122 572 572 572 572 502 113 536 330 533 537 122 122 121 121 122 106 106 106 106 119 568 572 590 584 516 561 511 767 755 572 512 117 122 757 703 122 559 741 737 122 571 PM 2200C EPSON STYLUS PHOTO EX3 Rev 01 800 with 7...

Page 137: ...514 564 523 518 513 514 523 518 513 514 564 523 518 513 514 564 523 518 513 514 564 523 518 513 514 509 540 520 530 571 577 521 585 576 545 505 567 567 588 575 569 551 557 563 555 575 572 572 F 572 572 564 523 518 513 514 564 523 518 513 514 564 PM 2200C EPSON STYLUS PHOTO EX3 No 3 Rev 01 10196 592 721 772 K L 762 762 594 593 722 578 579 527 597 579 591 575 572 572 525 527 524 527 524 527 524 527 ...

Page 138: ...oto 720 EPSON Stylus Photo EX3 Revision A Appendix Exploded Diagram 138 Figure 7 15 Stylus Photo EX3 Packing Materials 01 05 03 06 03 03 04 PACKING MATERIAL FOR PM 2200C EPSON STYLUS PHOTO EX3 Rev 01 10196 02 for EHK ...

Page 139: ... 129 Bind S Tight Sems W2 Screw 130 Bind S Tight Screw 131 Cover Cable 132 Lock Stacker 133 Compression Spring 2 94 134 Spacer Housing 135 Spacer Housing Panel 180 Label Caution 181 Label Adjust Lever 182 Label Caution 3 183 Label Lever Cartridge Black 184 Label Lever Cartridge Color 185 Label Super Colorio Color 189 Label Accessory 200 MAIN Assembly MAIN B1 Beads Core B2 Beads Core B3 Beads Core ...

Page 140: ...ertor IC12 Comparator IC13 HIC IC14 HIC IC15 IC Table 7 12 Stylus Photo 720 Parts List Ref No Description IC16 Regulator IC17 DRAM IC2 Gate Array IC3 EP ROM IC3 IC Socket IC5 Timer IC IC6 EEPROM IC9 I F IC Q1 Digital Transistor Q2 NPN Transistor Q2 Q3 Bind 2 6x8 F ZN Q3 PNP Transistor Q4 NPN Transistor RM1 Chip Resistor Array RM2 Chip Resistor Array RM4 Chip Resistor Array RM5 Chip Resistor Array ...

Page 141: ...34 Plain Washer 4 1x0 5x6 5 535 Paper Guide Front B 536 Grounding Spring Paper Eject 538 Frame Paper Eject Table 7 12 Stylus Photo 720 Parts List Ref No Description 539 Holder Star Wheel Right 540 Holder Star Wheel Left 541 Holder Star Wheel Front 542 Star Wheel Assembly 8 E 543 Star Wheel 8 B 544 Shaft Spring Star Wheel 545 Paper Guide Upper 546 Paper Guide Left 547 Paper Guide Right 548 Shaft Pa...

Page 142: ...ead 707 Frame ASF B 708 Hopper Table 7 12 Stylus Photo 720 Parts List Ref No Description 709 Edgeguide 710 Cork 711 Slider Edgeguide 712 Compression Spring 3 23 713 Pad Break Edgeguide 714 Strengthen Plate Hopper 716 Pad Assy Right 717 Lever Pad Release Right 718 Shaft Spring Holder Pad 719 Holder Edgeguide Right 720 Compression Spring 1 17 721 Tension Spring 0 62 722 Lever Return Paper Right 723 ...

Page 143: ...tridge BK 760 Cover Cartridge C B 761 Separator Cartridge BK 762 Separator Cartridge C 763 Detector HP E 764 Cork B 765 Cleaner Head ASP 766 ASF Unit C 769 Spacer Tray Absorber 770 Absorber Waste Ink Small 771 Cable Head B 776 Cable Cover Cartridge B Table 7 12 Stylus Photo 720 Parts List Ref No Description 01 Package 03 Pad Set Printer 04 Pad Attached Parts 05 Vinyl Sack 06 Vinyl Sheet 260x80x0 0...

Page 144: ... P SCREW 122 C B S SCREW 124 C B S SCREW 125 C B P TITE SCREW 3X8 F ZN 126 C B P TITE 3X10 F ZN 127 COVER SUPPORT 129 SHEET PROTECT PANEL 131 COVER CABLE B 182 LABEL CAUTION D 185 LABEL PAPER SET D 200 BOARD ASSY MAIN 300 BOARD ASSY POWER SUPPLY 330 WIRE HARNESS 450 BOARD ASSY PANEL 411 POWER CABLE ASSY 500 PRINTER MECHANISM ASP M4G62 101 501 FRAME UPPER B 502 FRAME RIGHT 503 FRAME FRONT 504 FRAME...

Page 145: ...Y 542 CAP ASSY 544 GUIDE PLATE ASSY CABLE Table 7 13 Stylus Photo EX3 Parts List Ref No Description 545 BUSHING PARALLELISM ADJUST LEFT 546 BUSHING PARALLELISM ADJUST RIGHT 547 LEVER PG 548 LEVER PG SUPPORT 549 BUSHING 12 LEFT 550 BUSHING 6 551 LEVER CHANGE 553 SUPRGEAR 11 554 SPUR GEAR 23 2 555 SPURGEAR 73 6 556 SPUR GEAR 36 557 SPURGEAR 26 4 558 COMBINATIONGEAR 16 40 8 559 COMBINATION GEAR 16 21...

Page 146: ...LANE WASHER 4 5X0 5X8 L NA 593 GROUNDING WIRE EJ 594 PLATE SLIDER CLEANER 595 PLAIN WASHER 596 PLANE WASHER 6 1X0 5X9 0 Table 7 13 Stylus Photo EX3 Parts List Ref No Description 597 HOLDER STAR WHEEL LEFT 700 PAD ASSY LEFT 701 PAD ASSY RIGHT 702 EXTENSION SPRING 0 294 703 HOLDER EDGEGUIDE LEFT 704 LEVER PAD RELEASE LEFT 705 LEVER PAPERRETURN LEFT 707 LEVER PAD RELEASE RIGHT 708 HOLDER EDGEGUIDE RI...

Page 147: ...ET PAPERFEED 750 HOLDER SHEET PAPERFEED 751 SPUR GEAR 27 2 Table 7 13 Stylus Photo EX3 Parts List Ref No Description 752 TORSION SPRING 49 753 TORSION SPRING 41 2 754 EXTENSION SPRING 0 088 755 COMPRESSION SPRING 1 961 756 C B P TITE SCREW 3X6 F ZN 757 C P S TITE P4 3X6 F ZN 758 C B S SCREW 761 SHEET CABLE 762 SPACER COVERCARTRIDGE B 763 PAD BREAK EDGE GUIDE 764 CORK B 765 POROUSPAD SUPPORT 766 BU...

Page 148: ... EPSON Stylus Photo EX3 Revision A Appendix Parts List 148 2 OUTER CARTON BOX 3 PAD SET PRINTER 4 PAD ACCESSORY 5 PAD PRINTER B 6 PLASTIC PROTECTIVE BAG 500X900X0 04T Table 7 13 Stylus Photo EX3 Parts List Ref No Description ...

Page 149: ...lectric Circuit 149 7 5 Electric Circuit The following pages show the following electric circuits o C301MAIN Control Circuit o C301PSB Power Supply Circuit o C301PSE Power Supply Circuit o C209PNL Board Circuit Stylus Photo 720 o C366PNL Board Circuit Stylus Photo EX3 ...

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