Epson Stylus PHOTO 950 Service Manual
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Epson Stylus PHOTO 950 Service Manual

Epson Stylus PHOTO 950 Service Manual

Color inkjet printer
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SERVICE MANUAL
Color Inkjet Printer
EPSON Stylus PHOTO 950
®
SEIJ01-015

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Summary of Contents for Epson Stylus PHOTO 950

  • Page 1 SERVICE MANUAL Color Inkjet Printer EPSON Stylus PHOTO 950 ® SEIJ01-015...
  • Page 2 SEIKO EPSON CORPORATION. All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.
  • Page 3 REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE.
  • Page 4 P O I N T Provides preventive maintenance procedures and the lists of may also provide additional information that is related to a Epson-approved lubricants and adhesives required for specific subject, or comment on the results achieved through a servicing the product.
  • Page 5 Revision Status Revision Issued Date Description April 5, 2002 First Release...

  • Page 6: Table Of Contents

    CONTENTS Chapter 1 PRODUCT DESCRIPTION Chapter 2 OPERATING PRINCIPLES 1.1 Overview........................9 2.1 Overview......................26 1.2 Specification ......................11 2.2 Printer Mechanism..................... 26 1.2.1 Printing specification ................. 11 2.2.1 Printhead ....................27 1.2.2 Character specification ................12 2.2.2 Carriage Mechanism .................. 28 1.2.3 Control code ....................
  • Page 7 Chapter 7 APPENDIX 4.2.4 Ink System Unit Removal ............... 107 4.2.5 Printhead Removal .................. 108 7.1 Connector Summary ..................175 4.2.6 Carriage Unit / CR Guide Shaft Removal ..........110 7.1.1 Connectors and Pin Layouts ..............175 4.2.7 Star Wheel Roller Unit Removal ............. 116 7.1.2 EEPROM Address Map ................

  • Page 8: Chapter 1 Product Description

    C H A P T E R PRODUCT DESCRIPTION...

  • Page 9: Overview

    EPSON Stylus PHOTO 950 Revision A 1.1 Overview Suitable for CD-R label direct printing Direct printing onto CD-R labels is possible. In addition, the CD-R tray can be inserted into the front of the printer, and the position of the star wheel roller can be This photo printer is designed for a wide user range, from home use through to office use.
  • Page 10 EPSON Stylus PHOTO 950 Revision A ENCLOSED PARTS User's manual Ink Cartridges CD-ROM (Printer Driver, Utility, Bundled Software) Roll Paper Holder Basket for Roll Paper Front loading paper guide Printing Kit for CD-R Cutter Unit OPTIONS Ink cartridge Black : T0331...

  • Page 11: Specification

    EPSON Stylus PHOTO 950 Revision A 1.2 Specification PRINT DIRECTION Text : Bi-directional shortest-direction printing, uni-directional printing 1.2.1 Printing specification Graphics : Bi-directional shortest-direction printing, uni-directional printing PRINT METHOD PRINT SPEED & PRINTABLE COLUMNS On demand ink jet Character mode...

  • Page 12: Character Specification

    EPSON Stylus PHOTO 950 Revision A 1.2.2 Character specification 1.2.4 Paper feeding CHARACTER TABLES FEEDING METHOD 2 international character sets Friction feed with ASF PC 437 (US, Standard Europe) Table 1-2. Paper Specifications for Paper Feeder PC 850 (Multilingual) Size : A6 to A4 (Portrait) NOTE: Do not mention this in the user's manual.

  • Page 13: Paper Specification

    EPSON Stylus PHOTO 950 Revision A 1.2.5 Paper specification ENVELOPE Size CUT SHEET #10 (241.3mm x 104.8mm) Size DL (220mm x 110mm) A4 (210mm x 297mm) C6 (162mm x 114mm) A5 (148mm x 210mm) Quality A6 (105mm x 148mm) Bond paper, PPC, Air mail...

  • Page 14: Printing Area

    EPSON Stylus PHOTO 950 Revision A 1.2.6 Printing area Table 1-3. Printing area for Stylus PHOTO 950 The printing area for this printer is shown below. Paper size (paper (paper (Left (Right (Top (Bottom width) length) margin) margin) margin) margin)

  • Page 15: Adjust Lever

    EPSON Stylus PHOTO 950 Revision A 1.2.7 Adjust Lever 1.2.8 Ink The adjust lever should be set as follows depending on the type of paper being used. INK CARTRIDGE Table 1-4. Adjust Lever Settings Type Paper Type Adjust Lever Gap adjust...

  • Page 16: Input Data Buffer

    EPSON Stylus PHOTO 950 Revision A 1.2.9 Input data buffer 256kByte 1.2.10 Electrical specification Rated voltage AC 220 to 240V Input voltage range AC 198 to 264V Rated frequency range 50 to 60Hz Input frequency range 9.5 to 60.5Hz Rated current 0.15A(Max 0.3A)

  • Page 17: Acoustic Noise

    EPSON Stylus PHOTO 950 Revision A 1.2.11 Acoustic noise 1.2.15 Environmental condition Level : Approx. 45dB (A) (According to ISO 7779) TEMPERATURE 1.2.12 CE Marking 10 to 35°C (operating) Low Voltage Directive 73/23/EEC : EN60950 -20 to 60°C (non-operating) EMC Directive 89/336/EEC : EN55022 class B NOTE: 1 month at 40 °...
  • Page 18 EPSON Stylus PHOTO 950 Revision A RESISTANCE TO SHOCK 1G, within 1ms (operating) 2G, within 2ms (non-operating) RESISTANCE TO VIBRATION 0.15G (operating) 0.50G (non-operating) NOTE 1: You should check that the printhead is capped during storage. NOTE 2: You should check that the printhead is capped during transportation, and the ink cartridges should still be installed to the printer at this time.

  • Page 19: Printer Function

    EPSON Stylus PHOTO 950 Revision A 1.3 Printer Function 1.3.4 Panel Functions Table 1-5. Normal Panel Functions 1.3.1 Operator controls Switch Function • Loads or Ejects the Paper The control panel is shown in the figure below. Paper • Return from Error •...

  • Page 20: Special Settings Mode (*1)

    EPSON Stylus PHOTO 950 Revision A 1.3.5 Special settings mode (*1) 2. Reset the ink overflow counter in EEPROM Special demise mode is chosen by pushing the next switch in (three seconds) in the The operation procedure Response time when error indicator blinks after the power supply is turned on with pushing paper switch and roll paper switch.

  • Page 21: Printer Condition And Panel Status

    EPSON Stylus PHOTO 950 Revision A 1.3.6 Printer condition and Panel status " − " : Indicator status don't change. Blink : The Redo of 0.5second On, 0.5second Off. Table 1-9. Panel status Blink 2 : The Redo of 0.2second On, 0.2second off, 0.2second On, Indicator 0.4second Off...

  • Page 22: Printer Initialization

    EPSON Stylus PHOTO 950 Revision A 1.3.7 Printer Initialization Power-on initialization This printer is initialized when printer recognized the cold-reset command There are four kinds of initialization method. (remote RS command). Power-on initialization When printer is initialized, the following actions are performed.

  • Page 23: Default Values

    EPSON Stylus PHOTO 950 Revision A 1.3.8 Default Values 1.3.9 Errors Default Values described above are as follows: Printer becomes error condition when the following conditions are detected. A part of the memory contents remain their values in case of panel setting, DEFAULT Concerning I/F signals, ERROR is set to "low", BUSY is set to "high", and data input...

  • Page 24: Physical Specification

    EPSON Stylus PHOTO 950 Revision A 1.4 Physical specification Fatal error Carriage control error or CG access error. Adjust lever position error DIMENSIONS It is made error when Adjust lever is in the integrity of a release. 515mm (W) × 332.8mm (D) × 209mm (H) : Storage It is made error when printout mode isn't suitable toward the platen gap.

  • Page 25: Chapter 2 Operating Principles

    C H A P T E R OPERATING PRINCIPLES...

  • Page 26: Overview

    EPSON Stylus PHOTO 950 Revision A 2.1 Overview A general diagram of the printer mechanism is shown in the following figure. Adjust lever PG sensor Release sensor CR motor This section describes the operating principles of the printer mechanism and electrical circuit boards.
  • Page 27 Revision A 2.2.1 Parenthood CSIC Nozzle Selector The printhead uses a new developed G-MACH head and Stylus PHOTO 950 can Board perform variable dot printing. Electrodes for The CSIC-chip is mounted on the ink cartridge. By storing ink life data, this IC makes CSIC-chip it possible to control the ink in ink cartridge unit.

  • Page 28: Carriage Mechanism

    EPSON Stylus PHOTO 950 Revision A 2.2.2 Carriage Mechanism The carriage mechanism consists of components such as a carriage motor (CR motor), Parallelism carriage guide shaft, platen gap adjustment mechanism, parallelism adjustment adjustment mechanism and a carriage lock mechanism. bushing 2.2.2.1 Carriage Motor (CR Motor)
  • Page 29 The adjust lever is installed to the left end of the carriage guide shaft. previous model (EPSON Stylus PHOTO 890) whereby the CR motor drive current and The carriage guide shaft is an eccentric shaft that rotates when the adjust lever is the speed and position signals from the linear encoder are used to detect the position.

  • Page 30: Paper Feeding Mechanism

    EPSON Stylus PHOTO 950 Revision A 2.2.3 Paper Feeding Mechanism The paper feed motor used in previous models was a stepping motor and control was carried out by means of open loop control. However, this printer employs closed loop The Paper Feeding mechanism consists of components such as ASF, Manual Feed control via a DC motor and a rotary encoder to control the carriage speed and position Mechanism and Roll paper holder.
  • Page 31 EPSON Stylus PHOTO 950 Revision A When paper is fed from the ASF, the feeding of paper is detected by the PE sensor that 2.2.3.2 Manual Feed Mechanism is located on the right side of the top frame, and the leading edge of the paper then This printer uses a new method of manually feeding paper from the front of the printer travels as far as the front-center part of the paper guide.
  • Page 32 Timer cleaning 1. The printer stores the date printing was last carried out in its EEPROM. (The Stylus PHOTO 950 printer driver always appends the current date reported by the computer's operating system to print commands when these commands are sent to the printer.) Unlock 2.
  • Page 33 EPSON Stylus PHOTO 950 Revision A 2.2.3.4 Star Wheel Roller Release Mechanism This printer is equipped with a new star wheel roller release mechanism that allows printing of CD-R labels without leaving marks that look like a sewing machine seam on the surface.

  • Page 34: Paper Loading Mechanism (Asf Unit)

    EPSON Stylus PHOTO 950 Revision A 2.2.4 Paper Loading Mechanism (ASF Unit) CLUTCH MECHANISM The Paper loading mechanism is positioned at the printer rear. The Paper loading The Clutch mechanism is located at the rear of the printer inside the left part of the mechanism loads paper at the ASF unit and feeds paper to the PF roller.
  • Page 35 EPSON Stylus PHOTO 950 Revision A The driving force from the PF motor is transmitted via Combination gears 18.2 Standby condition and 32.8, Spur gear 22.4, Spur gear 12 and Combination gear ratchet 33.4 in that Print data is not sent to the printer for 3 seconds.
  • Page 36 EPSON Stylus PHOTO 950 Revision A The driving force from the PF motor is transmitted via combination gears 18.2 and C H E C K The silence cam and the silence lever on the ASF right frame apply a 32.8, spur gear 22.4, the planetary gear set, spur gear 12 and the clutch body in that...
  • Page 37 EPSON Stylus PHOTO 950 Revision A SILENCE CAM MECHANISM Following is the operation principles mentioned how to operate the silence CAM to drive ASF hopper quietly. Step 1 : Initial Status for both Silence CAM and LD Roller Usually, silence cam is in the following initial condition. And hopper is in stand- Paper return by condition to allow user to set the paper.
  • Page 38 EPSON Stylus PHOTO 950 Revision A Step 2 : Loading Sequence Once the printing data is input or load/eject switch is pressed down, the silence Hopper Up cam will rotate to counterclockwise direction in Figure 2-18 to bring the hopper to the hopper-state.
  • Page 39 EPSON Stylus PHOTO 950 Revision A Step 3 : Paper Return Sequence Also, "paper return lever" will suddenly be jumped out as well as the "slow down nail" passes over a step (Point A or Point B). This timing is managed and Once a top paper is loaded to the printer internal, then the paper return sequence controlled by the "CAM gear"...
  • Page 40 EPSON Stylus PHOTO 950 Revision A Step 4 : ASF Reset Operation 11. Once a loaded paper is completely printed and ejected, printer will perform the ASF reset operation if the next printing data does not input for a few seconds. Note...
  • Page 41 EPSON Stylus PHOTO 950 Revision A Step 5 : How to Operate Paper Return Lever 2.2.4.1 Pump Mechanism Following is the operation principles mentioned how to operate paper return lever. The pump mechanism draws up ink from the printhead and from the cap assembly. In addition, there is also a head cleaning wiper located inside the cap assembly.
  • Page 42 EPSON Stylus PHOTO 950 Revision A Following figure shows the overview of the pump mechanism operation. 2.2.4.2 Capping Mechanism The capping mechanism covers the printheads with the cap holder to prevent the nozzle Tube from increasing viscosity when the printer is in stand- by mode or when the printer is off.

  • Page 43: Electrical Circuit Operating Principles

    2.3 Electrical Circuit Operating Principles 2.3.1 Power Supply Circuit Operating Principles The power supply boards (C456 PSB/PSE Board) of Stylus PHOTO 950 use a RCC The electric circuit of the Stylus PHOTO 950 consists of the following boards. (Ringing Chalk Converter) circuit, which generates +42VDC for drive line and +5VDC for logic line to drive the printer.
  • Page 44 EPSON Stylus PHOTO 950 Revision A The C456 PSB/PSE board has the various control circuits to stop voltage output if a Regardless of the state of the power switch (On or OFF), the voltage is always malfunction occurs on the power supply board or the main board while the printer applied to the primary side of the power supply board from the moment or at the mechanism is on duty.
  • Page 45 EPSON Stylus PHOTO 950 Revision A 2.3.1.2 Protection Circuit 2.3.1.3 PS Control Function The C456PSB/PSE board has the various control circuits to stop voltage output if a The power supply circuit is equipped with a secondary power supply, so that even if...

  • Page 46: C456 Main Board

    EPSON Stylus PHOTO 950 Revision A 2.3.2 C456 Main Board See Figure 2-28 for the C456 Main board block diagram. The C456 main circuit board consists of logic circuits (2-in-1 CPU-ASIC, PROM and DRAM), control circuits and drive circuits for the various motors (CR motor, PF motor...
  • Page 47 EPSON Stylus PHOTO 950 Revision A Table 2-9 shows the function of the each main elements on C456 Main. 2.3.2.1 Parenthood Driver Circuit The parenthood driver circuit consists of the following two components: Table 2-9. Main Elements of the C456 Main Common driver IC (IC9) directly attached to the C456 Main board.
  • Page 48 +42V line becomes 36.3V or lower. Head nozzle selector circuit Unlike the previous products, Stylus PHOTO 950 has no timer IC and no Lithium Printing data is converted into serial data by the CPU (IC6). Then the converted battery on the main board.
  • Page 49 EPSON Stylus PHOTO 950 Revision A The following figure shows the structure of the reset circuit. EEPROM CONTROL CIRCUIT +42V Since EEPROM is nonvolatile memory, it keeps written information if the printer CPU-ASIC power is turned off. When the printer is turned ON, CPU (IC6) reads data from...
  • Page 50 EPSON Stylus PHOTO 950 Revision A 2.3.2.3 Motor Driver Circuit PF MOTOR DRIVER CIRCUIT This printer is equipped with three separate motors: a CR motor and a PF motor which A diagram of the IC10 (A3958) driver for the PF motor is shown below.
  • Page 51 EPSON Stylus PHOTO 950 Revision A 2.3.2.4 Sensor Circuit PUMP DRIVER CIRCUIT This printer is equipped with the following eight sensors that detect the status of the The pump motor is a PM-type stepping motor. A block diagram of the drive circuit for printer.
  • Page 52 EPSON Stylus PHOTO 950 Revision A The functions and operating principles for each of the sensors are described blow. CR linear encoder To make the current CR position manage, CR encoder always monitors the bar- PE sensor code on the linear scale during CR motor drivers. Also this model has no HP This sensor uses photo interrupter method and detects the following status.

  • Page 53: Chapter 3 Troubleshooting

    C H A P T E R TROUBLESHOOTING...

  • Page 54: Overview

    EPSON Stylus PHOTO 950 Revision A 3.1 Overview START This chapter describes how to troubleshoot problems. It consists of the sections shown in the flowchart below. When identifying and troubleshooting problems, be sure to proceed to the correct section specified in the flowchart.

  • Page 55: Communication Error

    (Communication problems occur when using USB) below. For details, refer to Chapter 5. 03H : Fixed to USB NOTE: The Stylus PHOTO 950 has a default setting function, (Communication problems occur when using parallel) but unlike previous models, interface protocol selection To reset, use the Dump function of the adjustment software to is not possible.

  • Page 56: Status Monitor Does Not Operate

    02H : Off NOTE:The Stylus PHOTO 950 has a default setting function, but (Status cannot be sent to the computer regardless of the there is no function available for the customer to change the printer status) setting for the 09H address.

  • Page 57: Troubleshooting With Led Error Indications

    The Stylus PHOTO 950 can detect the following the instructions given in that section as a reference.
  • Page 58 EPSON Stylus PHOTO 950 Revision A Table 3-5. Relationship between Error Indication and Presumption Cause Table 3-5. Relationship between Error Indication and Presumption Cause Error status Probable cause Error status Probable cause Paper Jam 16.The paper back lever has come off and fallen down, and Ink Low Indication •...
  • Page 59 EPSON Stylus PHOTO 950 Revision A Table 3-5. Relationship between Error Indication and Presumption Cause 3.1.4.1 Remedy when a paper out, double feed or paper jam error occurs Error status Probable cause This section provides check points and corresponding actions which are necessary Paper Thickness 1.
  • Page 60 EPSON Stylus PHOTO 950 Revision A Table 3-6. Countermeasures when a paper out error occurs Table 3-6. Countermeasures when a paper out error occurs Step Check Point Remedy Step Check Point Remedy Is there any paper Clean away any paper or other foreign particles that may be Is no paper loaded? Set a cleaning sheet in the ASF up side down.
  • Page 61 EPSON Stylus PHOTO 950 Revision A Table 3-6. Countermeasures when a paper out error occurs Table 3-6. Countermeasures when a paper out error occurs Step Check Point Remedy Step Check Point Remedy Is the EJ roller holder Place the EJ roller holder in the correct position.
  • Page 62 EPSON Stylus PHOTO 950 Revision A Table 3-6. Countermeasures when a paper out error occurs Table 3-6. Countermeasures when a paper out error occurs Step Check Point Remedy Step Check Point Remedy Has one of the Check both the PF grounding wire and the EJ grounding...
  • Page 63 EPSON Stylus PHOTO 950 Revision A Table 3-6. Countermeasures when a paper out error occurs Table 3-6. Countermeasures when a paper out error occurs Step Check Point Remedy Step Check Point Remedy During paper back The paper back lever is inserted onto the ribbed shaft on the...
  • Page 64 EPSON Stylus PHOTO 950 Revision A Table 3-6. Countermeasures when a paper out error occurs Step Check Point Remedy Malfunction of PE Because the only sensor check point is pin 22 of the ASIC sensor (IC6) port and the tester must be applied directly to the pin, testing is dangerous and difficult.
  • Page 65 EPSON Stylus PHOTO 950 Revision A 3.1.4.2 Remedies for No I/C and Ink Out Errors Table 3-7. This section describes the procedures for solving the problem when an ink out (cartridge out) error is displayed even This section includes the check points and corresponding actions which are necessary though a brand-new ink cartridge has been installed.
  • Page 66 EPSON Stylus PHOTO 950 Revision A Table 3-7. This section describes the procedures for solving the problem Table 3-7. This section describes the procedures for solving the problem when an ink out (cartridge out) error is displayed even when an ink out (cartridge out) error is displayed even though a brand-new ink cartridge has been installed.
  • Page 67 EPSON Stylus PHOTO 950 Revision A Table 3-7. This section describes the procedures for solving the problem Table 3-7. This section describes the procedures for solving the problem when an ink out (cartridge out) error is displayed even when an ink out (cartridge out) error is displayed even though a brand-new ink cartridge has been installed.
  • Page 68 1. In contrast to previous CSICs, there is no ventilation EPSON Stylus COLOR 980, so that with this printer hole at the top of the cartridge. There is no refill point there is no way to check the history of whether head hot like previously.
  • Page 69 EPSON Stylus PHOTO 950 Revision A 3.1.4.3 Countermeasures when an Ink Low indication appears. Table 3-8. Countermeasures when an Ink Low indication does not disappear (Check conditions with customer) This section describes the procedures for solving the problem when an Ink Low indication is displayed unexpectedly.
  • Page 70 EPSON Stylus PHOTO 950 Revision A 3.1.4.4 Remedies for the Maintenance Error Accumulated power-off time: The value for the Timer IC is reset. If a maintenance error momentarily occurs, operation of the printer will not be Timer CL: possible. Because this is an error which occurs because the amount of ink discharged This is also called the firing standby counter.
  • Page 71 EPSON Stylus PHOTO 950 Revision A 3.1.4.5 Remedies for Fatal Error Table 3-10. Countermeasures when a fatal error occurs Fatal errors can occur with this printer for one of the following two reasons. Step Check Point Remedy Is the linear scale...
  • Page 72 EPSON Stylus PHOTO 950 Revision A Table 3-10. Countermeasures when a fatal error occurs Table 3-10. Countermeasures when a fatal error occurs Step Check Point Remedy Step Check Point Remedy Is the FFC Is CN9 (FFC) on CN9 on the main board is a connector that transmits the...
  • Page 73 EPSON Stylus PHOTO 950 Revision A Table 3-10. Countermeasures when a fatal error occurs Table 3-10. Countermeasures when a fatal error occurs Step Check Point Remedy Step Check Point Remedy Is there a Use an ohmmeter to check the resistance value of the coil inside...
  • Page 74 EPSON Stylus PHOTO 950 Revision A Table 3-10. Countermeasures when a fatal error occurs 3.1.4.6 Remedy when an adjust lever error occurs Step Check Point Remedy This section describes the check points to be carried out in order to remedy errors that occur when the printer mechanism's paper guide is open.
  • Page 75 EPSON Stylus PHOTO 950 Revision A Table 3-11. Countermeasures when an adjust lever error occurs 3.1.4.7 Remedy when a paper thickness error occurs Step Check Point Remedy This section describes the necessary check points and the related remedies to be carried out when a paper thickness error occurs.
  • Page 76 EPSON Stylus PHOTO 950 Revision A Table 3-12. Countermeasures when a paper thickness error occurs Table 3-12. Countermeasures when a paper thickness error occurs Step Check Point Remedy Step Check Point Remedy Is there a PE Use a multimeter to check if there is a problem with the sensor.

  • Page 77: Isolating The Faulty Part On The Power Supply Board

    EPSON Stylus PHOTO 950 Revision A 3.1.5 Isolating the Faulty Part on the Power Supply Board Table 3-13. Isolating the Faulty Part on the Power Supply Board Step Check Point Remedy This section explains how to troubleshoot the following problems: Is CN3 (white 8- Check that CN3 is not loose or disconnected.
  • Page 78 EPSON Stylus PHOTO 950 Revision A Table 3-13. Isolating the Faulty Part on the Power Supply Board Table 3-13. Isolating the Faulty Part on the Power Supply Board Step Check Point Remedy Step Check Point Remedy Are any of the C11 and C51 are the most likely places for this to happen.

  • Page 79: Isolating The Faulty Part According To The Phenomenon

    EPSON Stylus PHOTO 950 Revision A 3.1.6 Isolating the Faulty Part according to the Phenomenon Table 3-14. Troubleshooting for surface problems Step Surface problem Reference page Refer to this section if you could not solve the problem in Section 3.1.4 or Section 3.1.5 or need more information to isolate the cause according to the exhibited...
  • Page 80 EPSON Stylus PHOTO 950 Revision A 3.1.6.1 PF Motor Driver Abnormal 1 3.1.6.2 ASF Driver Abnormal 1 This section describes the procedures for solving the problem when no error occurs, This section describes the procedures for solving the problem when no error occurs, but the ASF is not driven at all even though the PF motor operates normally.
  • Page 81 EPSON Stylus PHOTO 950 Revision A Table 3-16. ASF Driver Abnormal 1 3.1.6.3 Unexpected Ink Out Error 1 (During Print Operation) Step Check Point Remedy This section describes the procedures for solving the problem when unexpected Ink Out errors occur. However, the problem described here is separate to the problem Is the ASF 3.
  • Page 82 (They do not need to be removed.) 3. Remove the timing belt from the pinion gear. The Stylus PHOTO 950 have the same function written into their 4. Set the timing belt onto the pinion gear. firmware, but the following points are completely different to those for the Stylus COLOR 900/980.
  • Page 83 EPSON Stylus PHOTO 950 Revision A Table 3-18. PF Motor Driver Abnormal 2 3.1.6.5 Carriage Operation Abnormal This section describes the procedures for solving the problem when a fatal error occurs Step Check Point Remedy as soon as the power is turned on and the printer stops operating. The methods of...
  • Page 84 EPSON Stylus PHOTO 950 Revision A 3.1.6.6 Dot Missing 1 Table 3-20. Dot Missing 1 This section describes the procedures for solving the problem when the printer is Step Check Point Remedy printing, but no print actually appears on the paper. Because this covers situation when...
  • Page 85 EPSON Stylus PHOTO 950 Revision A 3.1.6.7 Dot Missing 2 Table 3-21. Dot Missing 2 This section describes the procedures for solving the problem when a specific nozzle is Step Check Point Remedy not firing (dots are missing). If none of the nozzles are firing and nothing is printing,...
  • Page 86 EPSON Stylus PHOTO 950 Revision A Table 3-21. Dot Missing 2 Table 3-21. Dot Missing 2 Step Check Point Remedy Step Check Point Remedy Can the cap unit Is there any dust or If there is any dust or foreign matter on the edge of the cap (Cont.)
  • Page 87 EPSON Stylus PHOTO 950 Revision A Table 3-21. Dot Missing 2 3.1.6.8 Dot Missing 3 Step Check Point Remedy This section describes the procedures for checking the following factors which can cause instability in printing even though all nozzles are firing ink normally. Carry out...
  • Page 88 EPSON Stylus PHOTO 950 Revision A 3.1.6.9 ASF Driver Abnormal 2 Table 3-22. Dot Missing 3 Step Check Point Remedy This section describes the ASF operation problems mentioned before in more depth. The ASF problems that were mentioned previously dealt mainly with problems with Have any parts or units Carry out PG adjustment.
  • Page 89 EPSON Stylus PHOTO 950 Revision A Table 3-23. ASF Abnormal 2 Table 3-23. ASF Abnormal 2 Step Check Point Remedy Step Check Point Remedy 2. When the ASF is driven in the reverse direction to paper Does noise occur in...
  • Page 90 To prevent this from happening, the Stylus PHOTO 950 carries out the following controls. 1. If continuous printing is carried out for 150 pages and...

  • Page 91: Chapter 4 Disassembly And Assembly

    C H A P T E R DISASSEMBLY AND ASSEMBLY...

  • Page 92: Overview

    EPSON Stylus PHOTO 950 Revision A 4.1 Overview 4.1.1 Precautions See the precautions given under the handling "WARNING" and "CAUTION" in the This section describes procedures for disassembling the main components of the following column when disassembling or assembling the product.

  • Page 93: Tools

    EPSON Stylus PHOTO 950 Revision A 4.1.2 Tools Models which use the HAV cartridges should be transported C A U T I O N with the cartridges removed. In particular, when transporting Use only specified tools to avoid damaging the printer.

  • Page 94: Screws

    EPSON Stylus PHOTO 950 Revision A 4.1.3 Screws The screws used in the printer are as shown in Table 4-2. Make sure you always use the correct type and number of screws for the assembling part. Table 4-2. List of Screw Types Appearance Specifications Appearance Specifications Appearance Specifications 1) C.B.P 3x12...

  • Page 95: Work Completion Check

    EPSON Stylus PHOTO 950 Revision A 4.1.4 Work Completion Check If any service is made to the printer, use the checklist shown below to confirm all works are completed properly and the printer is ready to be returned to the user.

  • Page 96: Disassembly

    EPSON Stylus PHOTO 950 Revision A 4.2 Disassembly The flowchart below shows step-by-step disassembly procedures. When disassembling each unit, refer to the page number shown in the figure. START Panel Board Upper Housing Removal Assembly Removal (Page 97) (Page 104)

  • Page 97: Housing Removal

    EPSON Stylus PHOTO 950 Revision A 4.2.1 Housing Removal Use the upper case removal tool to disengage the two hooks, and then remove the upper housing. 4.2.1.1 Upper Housing Removal Be careful not to break the two mounting hooks when removing C A U T I O N Remove the two screws 1) C.B.P 3x12 that are securing the Upper Housing.
  • Page 98 EPSON Stylus PHOTO 950 Revision A Peel the double-sided tape off the panel circuit board that is secured to the 4.2.1.2 Rear Housing Removal underside of the upper housing, and then disconnect the FFC. Remove the Upper Housing. (Refer to Section 4.2.1.1.) Remove the four screws 3) C.B.S 3x8 and the two screws 4) C.B.P 3x10 that are...
  • Page 99 EPSON Stylus PHOTO 950 Revision A 4.2.1.3 Printer Mechanism Removal C A U T I O N Be careful not to clamp the cables when installing the rear housing. Remove the Rear Housing. (Refer to Section 4.2.1.2.) Use tweezers or similar to fold the carriage lock lever down toward the front, and then move the carriage unit to the left.
  • Page 100 EPSON Stylus PHOTO 950 Revision A Remove the four screws 5) C.B.P 4x12 and the two screw 6) C.B.S 3x8 that are Disengage the two hooks of the roll paper support holder, and the lift the printer securing the Printer Mechanism.

  • Page 101: Board Assembly Removal

    EPSON Stylus PHOTO 950 Revision A 4.2.2 Board Assembly Removal 4.2.1.4 Waste Ink Pad Removal Remove the Printer Mechanism. (Refer to Section 4.2.1.3.) 4.2.2.1 Main Board Assembly Removal Pull the waste ink pad upward to remove it. Remove the Printer Mechanism. (Refer to Section 4.2.1.3.)
  • Page 102 EPSON Stylus PHOTO 950 Revision A Disengage the two clamp foot hooks that are securing the cables to the circuit When re-installing, the cable must be routed as shown in Figure board plate, and then remove the clamp feet to release the cables.
  • Page 103 EPSON Stylus PHOTO 950 Revision A Disconnect the cables from the main circuit board assembly connectors. The Remove the seven screws 6) C.B.S 3x6 that are securing the main circuit board corresponding connectors are indicated below. assembly, and then slide the main circuit board assembly in the direction of A in Figure 4-18 and lit it up to remove it.
  • Page 104 EPSON Stylus PHOTO 950 Revision A 4.2.2.2 Power Supply Board Assembly Removal 4.2.2.3 Panel Board Assembly Removal Remove the Board Plate. (Refer to Steps 1 to 3 in Section 4.2.2.1.) Remove the Upper Housing. (Refer to Section 4.2.1.1.) Disconnect the Connector (CN3) from the Main Board Assembly.

  • Page 105: Asf Unit Removal

    EPSON Stylus PHOTO 950 Revision A 4.2.3 ASF Unit Removal Remove the two screws 3) C.B.S 3x8 that are securing the ASF Unit. Remove the Board Plate. (Refer to Steps 1 to 3 in Section 4.2.2.1.) ASF Unit Remove the single screws 4) C.B.P 3x10 that are securing each of the left and right roll paper units, and then pull the roll paper units out from the back of the printer.
  • Page 106 EPSON Stylus PHOTO 950 Revision A Remove the screw 6) C.B.S 3x6 that is securing the ASF mounting plate, After removing the ASF Unit, two positioning dowels for use disengage the hook of the ASF unit, and then slide the ASF unit to the right to...

  • Page 107: Ink System Unit Removal

    EPSON Stylus PHOTO 950 Revision A 4.2.4 Ink System Unit Removal When installing the ink system unit, the tabs on the bracket should C A U T I O N C A U T I O N C A U T I O N Remove the Printer Mechanism.

  • Page 108: Printhead Removal

    EPSON Stylus PHOTO 950 Revision A 4.2.5 Printhead Removal Use tweezers or similar to disengage the hooks of the two overlapping plates that apply tension to the ink cartridges from the notches at the left and right of the Remove the Upper Housing. (Refer to Section 4.2.1.1.) carriage unit, and then remove the plates one by one.
  • Page 109 EPSON Stylus PHOTO 950 Revision A Temporarily slide the head fastener to the right, and then remove the left end of the To avoid the two projections which are pressing down on the Printhead from head fastener from the notch. The head fastener can only be removed from the left above, slide the Printhead unit forward slightly, and then lift the Printhead up.

  • Page 110: Carriage Unit / Cr Guide Shaft Removal

    EPSON Stylus PHOTO 950 Revision A 4.2.6 Carriage Unit / CR Guide Shaft Removal C A U T I O N When removing or re-installing the Printhead, do not touch the Remove the Printer Mechanism. (Refer to Section 4.2.1.3.) surfaces of the nozzles against the Carriage Unit.
  • Page 111 EPSON Stylus PHOTO 950 Revision A When installing the carriage guide, install it so that it does not C A U T I O N C A U T I O N C A U T I O N C H E C K...
  • Page 112 EPSON Stylus PHOTO 950 Revision A Disconnect the FFC from the connector on the Printhead Control Board at the rear While pushing the driven pulley holder to the left, loosen the tension of the timing of the Carriage Unit. belt and remove it from the pinion gear of the CR motor.
  • Page 113 EPSON Stylus PHOTO 950 Revision A 12. Disengage the hook on the bushing gear at the left side of the printer mechanism, and then use tweezers or similar to push the bushing gear out from inside the C A U T I O N After the CR Guide Shaft Plate has been removed, make sure that printer mechanism and remove it.
  • Page 114 EPSON Stylus PHOTO 950 Revision A 16. After sliding the carriage guide shaft temporarily to the left together with the 17. Remove the carriage guide shafts from the carriage unit. carriage unit, pull the carriage guide shaft to the right to remove it.
  • Page 115 EPSON Stylus PHOTO 950 Revision A Both of the Carriage Unit Bushings are different from the bushes C A U T I O N The Adjust lever, bushing gear and idle spur gear 12 must be C A U T I O N...

  • Page 116: Star Wheel Roller Unit Removal

    EPSON Stylus PHOTO 950 Revision A 4.2.7 Star Wheel Roller Unit Removal When installing the star wheel roller, the screws should be C A U T I O N C A U T I O N C A U T I O N Remove the Carriage Unit.

  • Page 117: Front Paper Guide Removal

    EPSON Stylus PHOTO 950 Revision A 4.2.8 Front Paper Guide Removal Be careful not to break the hooks of the front paper guide that C A U T I O N Remove the Carriage Unit. (Refer to Section 4.2.6.) are shown in Figure 4-50 and Figure 4-51.

  • Page 118: Ej Roller Unit Removal

    EPSON Stylus PHOTO 950 Revision A 4.2.9 EJ Roller Unit Removal Lift up the EJ Roller Unit to remove it. Remove the Front Paper Guide. (Refer to Section 4.2.8.) When installing the EJ roller shaft, the end with the carriage...

  • Page 119: Lower Paper Guide Unit Removal

    EPSON Stylus PHOTO 950 Revision A 4.2.10 Lower Paper Guide Unit Removal When installing the lower paper guide, the grounding springs C A U T I O N C A U T I O N C A U T I O N Remove the EJ Roller Unit.

  • Page 120: Motor Removal

    EPSON Stylus PHOTO 950 Revision A 4.2.11 Motor Removal Peel off the acetate tape that is securing the PF motor cable to the printer mechanism. 4.2.11.1 PF Motor Removal Remove the Board Plate. (Refer to Steps 1 to 3 in Section 4.2.2.1.) Point A Disconnect the connector (CN6: white 2-pin) from the Main Board Assembly.
  • Page 121 EPSON Stylus PHOTO 950 Revision A 4.2.11.2 CR Motor Removal 4.2.11.3 Pump Motor Removal Remove the Board Plate. (Refer to Steps 1 to 3 in Section 4.2.2.1.) Remove the Board Plate. (Refer to Steps 1 to 3 in Section 4.2.2.1.) Disconnect the connector (CN5: red 2-pin) from the Main Board Assembly.

  • Page 122: Sensor Removal

    EPSON Stylus PHOTO 950 Revision A 4.2.12 Sensor Removal 4.2.12.2 PF Encoder Sensor Removal Remove the Printer Mechanism. (Refer to Section 4.2.1.3.) 4.2.12.1 PE Sensor Unit Removal Disconnect the connector (white 4-pin) from the PF Encoder Sensor. Remove the ASF Unit. (Refer to Section 4.2.3.) Remove a screw 12) C.B.P 2.5x5 that is securing the PF Encoder Sensor.
  • Page 123 EPSON Stylus PHOTO 950 Revision A 4.2.12.3 PF Rotary Encoder Removal 4.2.12.4 PG Sensor / Release Sensor Removal Remove the Printer Mechanism. (Refer to Section 4.2.1.3.) Remove the Printer Mechanism. (Refer to Section 4.2.1.3.) Remove the Timing Belt from the Pinion Gear on the PF Motor.

  • Page 124: Pf Roller Unit Removal

    EPSON Stylus PHOTO 950 Revision A 4.2.13 PF Roller Unit Removal With the left end of the Shaft as a pivot, bring the right end of the Shaft forward to release the Shaft from the Hook at the rear of the Paper Guide, and then remove Remove the Front Paper Guide.

  • Page 125: Asf Unit Disassembly

    EPSON Stylus PHOTO 950 Revision A 4.2.14 ASF Unit Disassembly Silence Cam Cover 7) C.B.P 3x6 [ASF Unit right side removal] ASF Frame Remove the ASF Unit. (Refer to Section 4.2.3.) (Right side) Insert a flat-tipped screwdriver or similar tool under the two Hooks and push to release them.
  • Page 126 EPSON Stylus PHOTO 950 Revision A Disengage the Hook from the Hopper Torsion Bar Holder. There is a phase difference between the Paper Back Lever Cam C A U T I O N C A U T I O N C A U T I O N and the Silence Cam.
  • Page 127 EPSON Stylus PHOTO 950 Revision A [ASF Unit left side removal] There is a U-type Spring at the left end of the Shaft. Set it so that C A U T I O N C A U T I O N C A U T I O N 16.
  • Page 128 EPSON Stylus PHOTO 950 Revision A 18. Remove the screw 7) C.B.P 3x6 that is securing the Combination Gear 18.2, 32.8, 20. Remove the screw 7) C.B.P 3x6 that is securing the Planetary Gear Set, and then and then remove the Combination Gear.
  • Page 129 EPSON Stylus PHOTO 950 Revision A [Paper Back Lever Removal] C A U T I O N Don't touch the surface of LD Pad by hand. 23. Disengage the tab of the ASF Middle Holder (Left), and then slide the ASF Middle Holder (Left) to the left to remove it.

  • Page 130: Asf Assembly Points

    EPSON Stylus PHOTO 950 Revision A 4.2.15 ASF Assembly Points Place the Paper Back Lever Cam in the specified position. At this time, inset a nail or similar object through the hole on the arc of the Paper Back Lever Cam and the This section describes the phase adjustments which must be carried out when the ASF hole in the ASF Right Frame to stop the Cam from moving.
  • Page 131 EPSON Stylus PHOTO 950 Revision A Set both a "Silence Support Lever" and "Silence Lever" with its Extension Spring Insert a nail into the hole at the top of the Silence Cam, and then while inserting 1.41. the end of the nail into the hole in the arc of the Spur Gear 28.8, move the Silence Cam to the specified position.

  • Page 132: Chapter 5 Adjustment

    C H A P T E R ADJUSTMENT...

  • Page 133: Overview

    Input the "Head ID". (Refer to Section 5.2.2.) This section includes each adjustment that is required after repairing or replacing Printhead specific parts used in the Stylus PHOTO 950. Some of the adjustments have the Perform "Ink Charge operation" using the adjustment replacement program.
  • Page 134 EPSON Stylus PHOTO 950 Revision A Table 5-1. Actions Taken and Corresponding Adjustment in Order Table 5-1. Actions Taken and Corresponding Adjustment in Order No. Actions Taken Step Corresponding adjustment required No. Actions Taken Step Corresponding adjustment required Perform the "Platen Gap adjustment".

  • Page 135: Adjustment

    3. Turn the printer on. Printer will enter the power on initializing operation unmistakably. Execute the adjustment program attached to the service manual for the Stylus PHOTO 950. The following screen appears. Figure 5-3. Main screen Figure 5-1. Initial Screen of Stylus PHOTO 950 Adjustment Program ADJUSTMENT Adjustment...

  • Page 136: Head Id Input

    EPSON Stylus PHOTO 950 Revision A 5.2.2 Head ID Input NOTE: If you select "Quit" button at this spot, printer starts performing the initialization as same to first power on timing to reflect current RAM data This section describes how to input Head ID. Perform this operation under the...
  • Page 137 EPSON Stylus PHOTO 950 Revision A Select "Change data", and then OK button. 10. To check the typed Head ID whether it's actually registered or not registered, press Previous button once. Following screen appears. 11. Program screen will return to Figure 5-5.

  • Page 138: Cr Motor Drive Dispersion Measurement Sequence

    EPSON Stylus PHOTO 950 Revision A 5.2.3 CR motor drive dispersion measurement sequence Select the main circuit board, CR motor or power supply circuit board (more than one can be selected), and then click "OK". The following screen appears. This section describes how to perform CR motor drive dispersion measurement sequence.Perform this operation under the following conditions:...

  • Page 139: Ink Charge

    Setup the adjustment program. (Refer to Section 5.2.1.) Therefore, if you refer the current ink amount using status monitor, please once close the Epson printer driver, and then use Select "Maintenance" and then "Ink Charge". Main screen changes as below.

  • Page 140: Head Angular Adjustment

    EPSON Stylus PHOTO 950 Revision A 5.2.5 Head Angular Adjustment. Select "Print the head angular pattern" and press "OK". Printer will start printing with current head angle setting. This section describes how to perform head angle adjustment. Perform this operation Once the printing completes, the program screen changes as follows.
  • Page 141 EPSON Stylus PHOTO 950 Revision A If you judge the once printed paper is OK pattern, and press "Paper feed" button, JUDGEMENT STANDARD & HOW TO ADJUST HEAD ANGLE and to eject a printed paper. Then, you can advance to another adjustment. On the other hands, if you judge it as NG (No Good) pattern, select "Move the carriage to...
  • Page 142 EPSON Stylus PHOTO 950 Revision A 12. Once you decide your target lever position, accede to followings to change the The ideal condition is that the left side lines and right side lines C H E C K current adjust lever position to your target position.
  • Page 143 EPSON Stylus PHOTO 950 Revision A 13. Once you set the adjust lever to your target position, push both edges of the head 17. Press ink button to perform ink cartridge replacement cleaning. After completing fixing plate 2 or 3 times by your fingers.

  • Page 144: Bi-D Adjustment

    EPSON Stylus PHOTO 950 Revision A 5.2.6 Bi-D Adjustment NOTE: The following four items are adjusted with the Bi-D adjustment. 1. Variable Sized Dot 1 (for 360<H> x 360<V> dpi printing) This section describes how to make I-D (I-directional) adjustment. This adjustment 2.
  • Page 145 EPSON Stylus PHOTO 950 Revision A A Bi-D adjustment pattern includes items shown in the sample in figure below. Variable 2' DOT Bi-D Check pattern data = 3 data = 3 Variable 1 DOT data = 2 data = 2...
  • Page 146 EPSON Stylus PHOTO 950 Revision A Press "Previous" button to return the program screen to Figure 5-21 Bi-D 11. Press "O.K." button on Figure 5-25 screen after inputting all values. You can see adjustment initial screen. all values that EEPROM has accepted and registered.

  • Page 147: Usb Id Readout (Checking)

    EPSON Stylus PHOTO 950 Revision A 5.2.7 USB ID Readout (Checking) 5.2.7.1 Possible to Readout the Original USB ID (CASE 1) Setup the adjustment program. Main screen (Figure 5-3) appears. This section describes how to readout/input the USB ID from/to the main board. This (Refer to Section 5.2.1.)
  • Page 148 EPSON Stylus PHOTO 950 Revision A Select "Readout USB ID", and press "O.K." button on the program screen. 10. Following screen appears. Initial screen changes as below. Figure 5-29. USB ID/Serial Number Input Mode Figure 5-28. USB ID Readout Screen 11.

  • Page 149: Eeprom Initialization

    EPSON Stylus PHOTO 950 Revision A 5.2.8 EEPROM Initialization 5.2.7.2 Impossible to Readout the Original USB ID (CASE 2) Setup the adjustment program. Main screen (Figure 5-3) appears. This section describes how to initialize the EEPROM, what kind of parameter will be (Refer to Section 5.2.1.)
  • Page 150 EPSON Stylus PHOTO 950 Revision A What kind of parameter will be initialized by this operation Following screen appears. Followings are the all items that EEPROM initialization supports. Table 5-2. All Contents of EEPROM Initialization Initial After Setting Items Address...

  • Page 151: Platen Gap Adjustment (Mechanism Adjustment)

    EPSON Stylus PHOTO 950 Revision A 5.2.9 Platen Gap Adjustment (Mechanism Adjustment) Loosen a screw (C.B.S M3x6) securing the right Parallel adjust bushing. NOTE: Do not remove a screw completely. (two or three revolution) This section describes how to perform the platen gap adjustment. This adjustment must be made under the following conditions.
  • Page 152 EPSON Stylus PHOTO 950 Revision A Check the right parallel adjust bushing is normal position, and change to normal Accede to following steps until you've completed the right side PG adjustment. position if the right parallel adjust bushing is in envelope position.
  • Page 153 EPSON Stylus PHOTO 950 Revision A 10. Loosen a screw (C.B.S M3x6) securing the Left parallel adjust bushing. 13. Accede to following steps until you've completed the left side PG adjustment. NOTE: Do not remove a screw completely. (two or three revolution)

  • Page 154: Head Cleaning Operation

    5.2.10 Head Cleaning Operation 16. Accede to following steps to check right side PG again. This section describes how to perform the cleaning that Stylus PHOTO 950 supports. START The cleaning that the adjustment program supports is the powerful cleaning called CL3, and you can try recovering the clogged nozzle(s) efficiently.

  • Page 155: Protection Counter Clear (And Check)

    EPSON Stylus PHOTO 950 Revision A 5.2.11 Protection Counter Clear (and Check) Press "O.K." button on the program screen. This section describes how to clear the protection counter. This operation must be done under the following conditions. When replacing waste ink drain pad.
  • Page 156 EPSON Stylus PHOTO 950 Revision A Select "Clearing the protection counter", and press "O.K." button on the program NOTE: If you want to check the current protection counter, accede to following screen. steps. On the Figure 5-44 screen, select "Checking the protection counter", and press "O.K."...

  • Page 157: First Dot Position Adjustment

    NOTE: If you click on the UP/DOWN arrow buttons the display value increases NOTE: The adjustable range is from -72 mm to +72 mm for Stylus PHOTO 950 or decreases. You can also use the left and right arrow button below this printers.

  • Page 158: Chapter 6 Maintenance

    C H A P T E R MAINTENANCE...

  • Page 159: Overview

    EPSON Stylus PHOTO 950 Revision A 6.1 Overview 6.1.2 Cleaning This printer has no mechanical components which require regular cleaning except the This section provides information to maintain the printer in its optimum condition. printhead. Therefore, when returning the printer to the user, check the following parts and perform appropriate cleaning if stain is noticeable.

  • Page 160: Service Maintenance

    EPSON Stylus PHOTO 950 Revision A 6.1.3 Service Maintenance If print irregularity (missing dot, white line, etc.) has occurred or the printer indicates "Maintenance Error", take the following actions to clear the error. Head Cleaning: The printer has a built-in head cleaning function, which is activated by operating the control panel.

  • Page 161: Lubrication And Adhesion

    When installing the carriage guide shaft after oiling the oil pad, C A U T I O N The types lubricants used in the Stylus PHOTO 950 are specified by SEIKO EPSON. be sure to clean the shaft and perform the preliminary Lubricate the printer if necessary under the following conditions;...

  • Page 162: Lubrication The Carriage Guide Shaft

    EPSON Stylus PHOTO 950 Revision A 6.1.5 Lubrication the Carriage Guide Shaft Remove 2 springs securing sub-oil pads, and remove 2 sub-oil pad. This section includes the procedure for lubricating the carriage guide shaft. Unlike NOTE: Donot re-use once removed sub-oil-pads.
  • Page 163 EPSON Stylus PHOTO 950 Revision A Get a smallest-diameter syringe available. The small syringe shown below only 10. Using the oiled side of the pad (step 8), lubricate the carriage guide shaft surface contains 2 cc maximally. thoroughly. Oil Pad already oiled with "O-12" (0.7 CC) Figure 6-5.
  • Page 164 EPSON Stylus PHOTO 950 Revision A 13. Using the same syringe used in Step 9, supply "O-12" (0.49 - 0.53 cc) to the 22. Perform Bi-Directional Adjustment. (See Chapter 5 / Section 5.2.6) installed oil pad. "O-12" "O-12" "O-12" 0.7cc 0.13cc...

  • Page 165: Lubrication

    Ref. No. Lubrication Type/Point Remarks The lubrication used for the components of the Stylus PHOTO 950 has been decided Refer to Figure 6-10, <Lubrication Point> on based on evaluation carried out by Epson. As a result, the specified amount of "Lubrication Point 2".
  • Page 166 EPSON Stylus PHOTO 950 Revision A Table 6-2. Lubrication Points Table 6-2. Lubrication Points Ref. No. Lubrication Type/Point Remarks Ref. No. Lubrication Type/Point Remarks Refer to Figure 6-13, Refer to Figure 6-20, <Lubrication Point> <Lubrication Point> "Lubrication Point 5". "Lubrication Point 12".
  • Page 167 EPSON Stylus PHOTO 950 Revision A Table 6-2. Lubrication Points Table 6-2. Lubrication Points Ref. No. Lubrication Type/Point Remarks Ref. No. Lubrication Type/Point Remarks Refer to Figure 6-24, Refer to Figure 6-29, <Lubrication Point> <Lubrication Point> "Lubrication Point 16" and "Lubrication Point 21".
  • Page 168 EPSON Stylus PHOTO 950 Revision A G-26 G-26 Figure 6-9. Lubrication Point 1 Figure 6-11. Lubrication Point 3 G-26 G-26 G-26 Figure 6-10. Lubrication Point 2 Figure 6-12. Lubrication Point 4 MAINTENANCE Overview...
  • Page 169 EPSON Stylus PHOTO 950 Revision A G-26 G-26 Figure 6-13. Lubrication Point 5 Figure 6-15. Lubrication Point 7 G-26 G-26 Figure 6-14. Lubrication Point 6 Figure 6-16. Lubrication Point 8 MAINTENANCE Overview...
  • Page 170 EPSON Stylus PHOTO 950 Revision A G-26 G-26 Figure 6-17. Lubrication Point 9 Figure 6-19. Lubrication Point 11 G-26 G-26 Figure 6-18. Lubrication Point 10 Figure 6-20. Lubrication Point 12 MAINTENANCE Overview...
  • Page 171 EPSON Stylus PHOTO 950 Revision A G-26 G-26 Figure 6-21. Lubrication Point 13 Figure 6-23. Lubrication Point 15 G-26 G-26 Figure 6-22. Lubrication Point 14 Figure 6-24. Lubrication Point 16 MAINTENANCE Overview...
  • Page 172 EPSON Stylus PHOTO 950 Revision A G-26 G-26 Figure 6-25. Lubrication Point 17 Figure 6-27. Lubrication Point 19 G-26 G-26 Figure 6-26. Lubrication Point 18 Figure 6-28. Lubrication Point 20 MAINTENANCE Overview...
  • Page 173 EPSON Stylus PHOTO 950 Revision A G-26 G-26 Figure 6-29. Lubrication Point 21 Figure 6-31. Lubrication Point 23 G-26 G-26 Figure 6-30. Lubrication Point 22 Figure 6-32. Lubrication Point 24 MAINTENANCE Overview...

  • Page 174: Chapter 7 Appendix

    C H A P T E R APPENDIX...

  • Page 175: Connector Summary

    EPSON Stylus PHOTO 950 Revision A 7.1 Connector Summary 7.1.1 Connectors and Pin Layouts See the following tables for the connector summary for the C456 MAIN Board and This section shows the connections between the main components of the printer.
  • Page 176 EPSON Stylus PHOTO 950 Revision A Table 7-3. CN4-Panel Board Table 7-7. CN8-PF Encoder Signal Name Function Signal Name Function SWB[0] Panel switch on/off 0 (Power) Feed back signal from PF encoder ch.B Power switch on/off Ground SWB[1] Panel switch on/off 1 (Paper) Feed back signal from PF encoder ch.A...
  • Page 177 EPSON Stylus PHOTO 950 Revision A Table 7-8. CN9-Printhead Table 7-9. CN10-Printhead Signal Name Function Signal Name Function Ground Abnormal temperature detection circuit ANODE for the nozzles CRST Reset signal for address counter of CSIC Ground Ground COMA Head drive pulse (trapezoid waveform)
  • Page 178 EPSON Stylus PHOTO 950 Revision A Table 7-12. CN13-Release Sensor Signal Name Function Release signal Ground Table 7-13. CN14-Cutter Unit Signal Name Function Cutter position sensor 1 CTON Cutter unit sensor Power control for cutter Ground +5V logic power supply...

  • Page 179: Eeprom Address Map

    EPSON Stylus PHOTO 950 Revision A 7.1.2 EEPROM Address Map Table 7-14. EEPROM Address Map Factory Address Explanation Setting QPIT settings settings Password EEPROM mapping revision Reserved Interface selection 0: Auto 1: Parallel 3: USB (*5) Interface time-out 0 to 255 (by second,value of 0 means 10seconds)
  • Page 180 EPSON Stylus PHOTO 950 Revision A Table 7-14. EEPROM Address Map Factory Address Explanation Setting QPIT settings settings Pitch 0: 10cpi Bit1: Network I/F mode (0=Off, 1=On) Auto LF, Network I/F mode Bit0: Auto line feed (0=Off, 1=On) Check mode control...
  • Page 181 EPSON Stylus PHOTO 950 Revision A Table 7-14. EEPROM Address Map Factory Address Explanation Setting QPIT settings settings Page length 1244 to 44x360 (by 0.0706mm (1/360inch)) CR Duty -127<=n<=+128 PF Duty Accumulate Page Counter by 1page Accumulate Print Pass by 1pass...
  • Page 182 EPSON Stylus PHOTO 950 Revision A Table 7-14. EEPROM Address Map Factory Address Explanation Setting QPIT settings settings Ink counter Cy Ink counter Cc Ink counter Cm Ink counter Clc Ink counter Clm Ink counter Cb2 Flushed into Cap counter...
  • Page 183 EPSON Stylus PHOTO 950 Revision A Table 7-14. EEPROM Address Map Factory Address Explanation Setting QPIT settings settings Temporary flushed waste counter 64H-67H Reserved (*5) Last cleaning time (*5) (*5) Current time (*5) All waste counter A (*6) Reserved (*6)
  • Page 184 EPSON Stylus PHOTO 950 Revision A Table 7-14. EEPROM Address Map Factory Address Explanation Setting QPIT settings settings Shift Bit D -16<=n<=+16 Shift Bit E -16<=n<=+16 Shift Bit F -16<=n<=+16 Shift Bit G -16<=n<=+16 89H-9FH Reserved Head Actuator Rank ID for VSD1L +1<=n<=+201...
  • Page 185 EPSON Stylus PHOTO 950 Revision A Table 7-14. EEPROM Address Map Factory Address Explanation Setting QPIT settings settings Custom EEPROM sub number bit7: Entry Self-Test bit6: Entry Hex-Dump Panel mask function bit5: Extended settings bit4-0: Reserved Factory Reserved CR Measurement AveTi...

  • Page 186: Csic Address Map (All Color)

    EPSON Stylus PHOTO 950 Revision A 7.1.3 CSIC address map (All color) Table 7-15. CSIC address map (All color) Factory Address Explanation Settings settings CSIC Ink Counter CSIC CL Counter CSIC Install Counter CSIC Install Printer 04H-9H CSIC Reserve CSIC Product Year...

  • Page 187: Electrical Circuits

    EPSON Stylus PHOTO 950 Revision A 7.2 Electrical Circuits The electric circuit diagrams below are shown at the following pages: C456 MAIN control circuit board C456 PSB power supply circuit board C456 PSE power supply circuit board C456 PANEL circuit board...

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