Epson Stylus 800 Service Manual
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Epson Stylus 800 Service Manual

Epson Stylus 800 Service Manual

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EPSON TERM NAL PRINTER

SERVICE MANUAL

EPSON

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Summary of Contents for Epson Stylus 800

  • Page 1: Service Manual

    EPSON TERM NAL PRINTER S~hs. 800+ SERVICE MANUAL EPSON...
  • Page 2 All efforts have been made toensure theaccuracyof thecontentsof this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them. The above notwithstanding SEIKO EPSON can assume no responsibility for any errors in this manual or the consequence thereof.
  • Page 3 THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN. MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLT- AGE, LISTED ON THE SERIAL NUMBER/RATING PLATE.
  • Page 4 Includes a step-by-step guide for product disassembly and assembly. CHAPTER 4. ADJUSTMENT Includes a step-by-step guide for adjustment. CHAPTER 5. TROUBLESHOOTING Provides Epson-approved techniques for adjustment. CHAPTER 6. MAINTENANCE Describes preventive maintenance techniques and lists lubricants and adhesives required to service the equipment.
  • Page 5 REVISION SHEET issue Dste Revisbn Page Revision Rev. A April 20, 1994 Ist issue 4. . ‘+,- -’ “v-...
  • Page 6 TABLE OF CONTENTS CHAPTER 1. GENERAL DESCRIPTION CHAPTER 2. OPERATING PRINCIPLES CHAPTER 3. DISASSEMBLY AND ASSEMBLY ADJUSTMENT CHAPTER 4. TROUBLESHOOTING CHAPTER 5. MAINTENANCE CHAPTER 6. APPENDIX vi -...

  • Page 7: Table Of Contents

    Chapter 1 General Description Table of Contents 1.1 FEATURES 1.2 SPECIFICATIONS 1.2.1 Printing Specifications....’... . “ s ----- 1-3 1.2.2 Paper Handling Specification.
  • Page 8 Table 1-1. Consumable forthe Stylus 800+......1-1 Table l-2. Feature Comparison ........1-2 Table l-3.

  • Page 9: Features

    General Description Stylus tUW+ service Manual 1.1 FEATURES The Stylus 800+ is a serial inkjet printer that uses a newly developed inkjet technology to produce superb quality output with high-speed printing. The major features of this printer are: ~ High print quality from a MACH (Multi-Layer ACtuator Head) inkjet technology. D Fast printing of LQcharacters at 165 cps and draft characters at 250 cps.
  • Page 10 wh18ao& Su’v&ohhud oescf@knl Gomrd Table 1-2 shows the differences in features for the Stylus 800 and Stylus W+. Table 1-2. Feature Comparison stylus SO& Function/SpecWation stylus Soo LQ Fonts (10 cpi) 165 Cps 150CPS Printing Spaed Draft Fonts (10 cpi) 250 Cpe cannot printing Printing Speed...

  • Page 11: Specifications

    GenwW Description Stylus 800+ service Manual 1.2 SPECIFICATIONS This section provides detailed statistics for this printer. 1.2.1 Printing Specifications Print system: Ondernand inkjet system Nozzle configuration: 48 nozzles (12 nozzles x 4 staggered columns) 17/360 60/360 12/3 ‘O=a #1 ~ Paper feed ’...

  • Page 12: Table 1-4. Character Tables

    - EPSON Script (10/12/15) Scdiablefmts — 8-32 points (units= 2 points) EPSON Roman - EPSON %s Serif 8-32 points (units= 2 points) - EPSON Roman T 8-32 points (units= 2 points) - EPSON Saris SerifH 8-32 points (units= 2 points)

  • Page 13: Paper Handling Specification

    General Description Stylus S00+ Servke A4snusl For bitrnapfonts — Print mode: Selection and mixture of the following modes are allowed. - Print quality (LQ) - Character pitch (10/12/15 cpi or proportional) - Condensed (not available with 15 cpi character pitch) - Double height - Double width - Double strike...

  • Page 14: Paper Specification

    Slykls m ~Mmud General Deecriptbn 1.2.3 Paper Specifications Usable paper: With the built-in skt feeder — cut sheet For European/Paafic version: size: A4(WXL :210 mm(83”)x 297mm(11.T’)) For U.S. version: Letter (W x L: 216 mm (85”) x279 mm (11.0”)) 0.065- o.14mrn(o.oo26 - 0.0055”) ‘IhiClmess: weight 64- 90g/m2 (18 - 241b.

  • Page 15: Figure 1-3. Printable Area - Cut Sheet (Built-In Sheet Feeder)

    General Description Stylus &MO+ Service Manual Printable area: Cut sheet (with built-in sheet feeder) (Left margin) , (Right margin) , — — (Top margin) Printable area (Bottom margin) Figure 1-3. Printable Area — Cut Sheet (Built-in Sheet Feeder) Cut Sheet / envelopes (with the manual insertion slot) (Left margin) ~Right margin) —...

  • Page 16: Ink Cartridge

    8m+ ~ stylus Mstnd -nerd Description The adjust lever, attadwd to the carriage unit must be set to proper Adjust lever settings: position for the paper thickness, as shown below. Table 1-5. Adjust Lever Settings Lever Position Paper Type Papsr Thkknsss 0.065-0.11 nun Left Cut Sheets...

  • Page 17: Environmental Conditions

    Ganwd Description Stylus 800+ service Manual Environmental Conditions 1.2.5 Table 1-6. Requirements for Operation and Storage Operating Storage Description Temperature 10- 35° C (50 - 95° F)* -20- 50° c (-4 - 122° F) Humidity 20- 80% RH “ ’”...

  • Page 18: Reliability

    stylus 8@+ ssfwicsmm4d Gsnsrd Dssaiption 1.2.7 Reliability 4000 power on hours (POH) at a duty cycle of 10’Yo MTBF: 1 billion dots per nozzle Printhead life: 75000 pages (with A4 or letter-size paper) Total print volume: 1.2.8 Safety Approvais Safety UL1950 with D3 US.

  • Page 19: Interface Specifications

    General Dasoription Stylus 800+ service Manual 1.3 INTERFACE SPECIFICATIONS The Stylus 800+ is equipped with an 8-bit parallel interface, standard. Data format: 8 bit parallel STROBE pulse synchronization Synchronization: Handshaking: By BUSY and ACKNLG signals TI’L-compatible level Signal level: Adaptable connector:...
  • Page 20 Descdption Styhm Sutdc9 Msmd Garleml Tabie 1-8. Signai and Connector Pin Assignments (Continued) Signai Narno Pin No. Description — I Signai ground. I GND Chassis ground. (i30th chassis andsignai ground are CHASSIS-GND — connected in the printer.) — Not used. 19-30 —...

  • Page 21: Printer Operations

    General Dsscrlptkm Stylus &WO+ Sarvke Manual 1.4 PRINTER OPERATIONS This section describes the basic operations of the printer. 1.4.1 Control Panel The control panel for this printer contains five non-lock type push buttons and nine LED indicators for easy ope;ation of the various printer functions. O Data E=El O Paper Out...

  • Page 22: Panel Operation Atpoweron

    SiJdu88m+ ~ Wnual Gen9m/ Lkscd@n 1.4.2 Panel Operation at Power On You can turn on the following functions at power on by holding down buttons cm the control panel. Start self-test printing by turning the printer on while holding down Self-test mode: the Font button (LQ self-test) or LoadEject button (Draft self-test).

  • Page 23: Initial Inkcharge

    General Daacription Stylus 800+ Setvica Manual 1.4.4 Initial Ink Charge When the printer is setup for the first time, the printer’s entire ink supply path must be filled with ink by performing the initial ink charge operation, as described below. 1.

  • Page 24: Main Components

    1.5 MAIN COMPONENTS The main components of this printer are: PMtermechanl“sm (M-4611) Cl Main control board (C134 MAIN Baud) 0 Power supply unit(C106PSB-B/C106 PSE-B Board) 0 Control panel 0 Housing 1.5.1 Main Control Board (C134 MAIN Board) The C134 MAIN board is the main controller of the Stylus 800+. It takes charge of interfacing with the host computer and processing received print data, as well as control of the whole printer mechanism.

  • Page 25: Power Supply Unit (C106 Psb-B/Pse-B Board)

    General Daacription Stylus S00+ Sarvica Manual 1.5.2 Power Supply Unit (C106 PSB-B/C106 PSE-B Board) The power supply unit converts input AC voltage and generates the different DC voltages required by the printer mechanism and other electrical circuities. The C106 PSB-B board is for 120 VAC input, and the C106 PSE-B board is for 220 to 240 VAC input.
  • Page 26 Chapter 2 Operating Principles Table of Contents 2.1 OVERVIEW 2.2 PRINTER MECHANISM OPERATING PRINCIPLES 2.2.1 Printer Mechanism......... . 2-2 2.2.2 Carriage Drive Mechanism .

  • Page 27: List Of Tables

    List Figures Figure 2-1. Functional Block Diagram of the Printer Mechanism....2-1 Figure 2-2. Structure of the Printhead 1 .......2-2 Figure 2-3.

  • Page 28: Overview

    Stylus 800+ Satvics Manual OpaUng Ftincipbs 2.1 OVERVIEW T’& section describes the operating prinaples for the Stylus 800+ printer mechanism and electrical circuits. 2.2 PRINTER MECHANISM OPERATING PRINCIPLES The Stylus 800+ printer mechanism is composed of the printhead unit, paper feed mechanism, carriage drive mechanism, pump mechanism, and various sensors.

  • Page 29: Printer Mechanism

    EPSON ink jet printem, but the printhead has been completely wdesigned to make it a)mpact and highly reliable. The figure below shows thestructureofthe printhead and rnksupplysystem.

  • Page 30: Figure 2-4. Principles Of The Printing Operation

    Opsfating Principles Stylus S00+ service Manual Principles of the Printing Operstion The printhead performs the following operations to eject ink from each nozzle: Normal state No electrical charge is applied to the MLP (Multi-Layer Piezoelectric) element attached to the back of the cavity, and pressure in the cavity is kept at a constant level.

  • Page 31: Carriage Drive Mechanism

    Stylus m Swv4c9 Aanud Opmtmg Princ@ks 2.2.2 Carriags Drive Mechanism The timing belt attached to the base of the carriage unit is driven by the carriage tir, causing* carriage unit to move along the carriage guide shaft from left 10 right or vice versa. The mrriage drive motor on this printer is a 4-phase, 2@ole, hybrid-type stepping motor mechanb, allowing the printer to stop the carriage or change carriage movement at any position.

  • Page 32: Paper Feed Mechanism

    Opwating Principles Stylus 800+ Sawica Manual 2.2.3 Paper Feed Mechanism This printer’s paper feed mechanism can feed paper either from the built-in ASF (auto sheet feeder) or the manual feed slot. The paper feed drive motor is a 4phase, 46-pole, PM-type stepping motor that directly drives the paper feed mechanism (paper advancing operation, paper pickup operation).

  • Page 33: Ink System

    Opemting Sl)w8 m S&wm Rbud Princlpks 2.2.4 Ink System printer’s ink system is composed of the lbllowing mechanisms: Ink cartridge P u m p mechams “ m 0 Cap mechanism Printhead cleanin g mechanism Waste inkdraintank The figure below shows a diagram of the rnk system. = Ink Cartridge Head Driver Filter...

  • Page 34: Pump Mechanism

    Opwating Prlnc@las Stylus 800+ Sarvica Manual 2.2.5 Pump Mechanism The paper lked motor drives the pump mechanism when the transmission gear is moved to the position where the paper feed motor engages the pump mechanism gear trains, when the carriage unit is at the ink system home position.
  • Page 35 Opmthg Manual FY’hw@9s Siyhm Table 24. Pump Mechanism Operation Oparatiort PF Motor Rotational Diraotion Pumping clockwise (Cw) Pseudo-pumping (falee abeorbing) (forward rotation) Gear backruah mmpenaation Micro absorbing Countedockwiee (CCW) Pump pulley reeet (baclward rotation) Gear backrueh compenaatiort The pump draws rnk from the printhead nozzles and drains it to the waste ink drain tank. This operation is performed by the printer to eliminate dust/bubbles within the nozzles.

  • Page 36: Cap Mechanism

    Stylus 800+ Service Manual Operating Principiss 2.2.6 Cap Mechanism The cap mechanism prevents the printhead nozzles from drying or bubbles from forming inside The printhead capping operation is performed the nozzle while the printer is not in use. automatically so that a cap closely contacts the printhead surface when the carriage unit is moved to the ink system home position.

  • Page 37: Operating Principles Of The Circuits

    Opening Prfnc@hw Slylus SW+ ~ -In@ 2.3 OPERATING PRINCIPLES OF THE CIRCUITS The Stylus 8(M+ contains the following circuit board units: C134 MAIN board (maincontrol circuit board) C106PSB-B/PSE-Bboad (powersupplycircuitboard) In addition to the arcuit boards above, part of the printhead drive circuit is built on a separate circuit tnrd installed in the carriage unit, and the printhead is attached directly to this board.
  • Page 38 Oparating Princ@9s Stylus 800+ Sarvica Manual The figure below shows a block diagram of the power supply circuit (CIM PSB-B/PSE-B). This power supply circuit employs the RCC (ringing choke converter) switching control system. The input AC voltage supplied from the external AC source is first input to the filter circuit for higher harmonics absorption.

  • Page 39: Operating Principles Of The Main Control Circuit

    SiyIl#8 U@+ su’ldco Manual Pril?+hm 2.3.2 Operating Prlnciplea of tha Main Control Circuit The C134 MAIN board is the main cxmtrol circuit of this printer. ‘his circuit is controlled by the l&bit TMP96C141F CPU (ICI), running at 19.6fXXl MHz This CPU has a unique architecture, making it capable of handling data a an 6-bit bus width data bus or a 16-bit bus width data bus.

  • Page 40: Sensorcircuits

    Optwating Principks Stylus Wlh Servke Manual Reeet Circuita 2.3.2.1 The C135 MAIN board contains two reset circuits: the +5 V monitor reset circuit and the +35 V monitor reset circuit. The +5 V monitor reset circuit monitors the voltage level of the +5 V line, using reset IC PST592 (IC12), and outputs a reset signal to both the CPU (ICI, TMP96C141) and the E05BO0 gate array (IC3), when the voltage level drops below +4.2 V.

  • Page 41: Inkend Detection

    Opmthg Pdnc@k8 S&h m Su’vko hmnml Ink End Detection 2.3.2.3 The IE (Ink End) sensor attached to the -ge detects, not ody the ink end, but&m when ink is low and whether an rnk cartridge (I/C) is installed. The detected status is divided into seven modes based on the output voltage level of the IE sensor.

  • Page 42: Table 2-6. Carriage Motor Drive Modes

    Oparating Principbs Stylus 800+ service Manual 2.3.2.4 Carriage Motor Drive Circuit The SLA7024 carriage motor drive IC (IC13) drives the carriage motor for the printer mechanism using a constant current, unipolar drive system. Gate array E05BO0 (IC3) selects the motor phase drive current level using the output signals from ports CRO to CR3 (pins 75 to 78).
  • Page 43 S@8 * SUvics ~ Op9mting Princ@8s 2.3.2.5 Paper Feed Motor Driw! Circuit The paper fked motor lbr this printer drives the tdkmving nwchams “nw Paper feed mechanism Paperpickupmechanism Pump mechanism The SMA6501 driver IC (QM1) drives the paper feed motor using a constant voltage, unipolar drive system.

  • Page 44: Printhead Drivecircuh

    4MI+ Ssrvks OpmWng Princ@lss Stylus hknusl 2.3.2.6 Printhead Drive Circuit The printhead drive circuit for this printer is composed of the following two parts: l Commondrivecircuit(trapezoidal drivepulsegeneration) • Head drive circuit (nozzle control built on theprinthead) The SED5620D 64-bit thermal head driver in the head drive circuit on the printhead is used as a nozzle selector to drive the printhead nozzles selectively.

  • Page 45: Ink System Management

    !9tyhmUlUt+SU@csAklnml Openlting Princ@b98 2.4 INK SYSTEM MANAGEMENT l’his section explains how the ink system is controlled to protect the printhead and ink supply Ink system control is composed of h following system and ensure highquality output. operations: Power on a caning Standby Initial charge Refresh...

  • Page 46: Inkoperations

    Operating Principles Stylus 890+ Sawice Manual 2.4.1 Ink Operations Various ink operations can be performed selectively by the printer. 2.4.1.1 Power on Operstion Power on consists of the following operations (only one of which is performed, depending on the position of the carriage and condition of ink cartridge when the printer is turned on): 1.

  • Page 47: Cleaning Operation

    Slyks m SUvke#b#n#d Opomffng Pdnc@ks 2.4.1.2 Cleaning Operation ‘l’his operation is perhned when cl caning is selected by pressing the Ah and Pauaa buttons There are three cleanin g modes, each of which is performed sektively, simuhaneously. depending on the value of cleaning counter K and the number of pMted lines from the previous cleming operation.

  • Page 48: Initial Charge Operation

    Opafating Ptincipbs Stylus W(I+ service Manual 2.4.1.4 Initial Charge operation This operation is performed when initial charge mode is selected to charge the printhead with ink. The operation has two modes, depending on the value held by protect counters B and C. 1.

  • Page 49: Cleaner Blade Operation

    operating stytus 8@+ SUvka MmnW PrhIc@9&Z 2.4.1.6 Cleaner Blade Operation The cleaner blade operation eliminates any dust or ink attached to the nozzle plate surf%ce. This operation consists of the following separate operational modes. ICleanerblade- I Elimina tes any dust attached to the nozzle plate surface before the ink absorbing operation is perfdrrnd 1.

  • Page 50: Micro Absorbing Operation

    Operating Principkw Stylus 800+ Service Manual 2.4.1.9 Micro Absorbing Operation Once the ink cartridge is installed, if it is removed from the printer, a small amount of air may get into the ink path in the form of tiny bubbles. Such small air bubbles block the ink path and act as an obstacle to ink ejection from the nozzle.
  • Page 51 Chapter 3 Disassembly and Assembly Table of Contents 3.1 OVERVIEW 3.1.1 Precautions for Disassembling the Printer......3-1 3.2 DISASSEMBLY AND ASSEMBLY 3.2.1 Upper Housing Removal.

  • Page 52: Overview

    Stylus 800+ service Manual DisassamblyandAssambly 3.1 OVERVIEW This section describes procedures for disassembling the main components of this printer. Unless otherwise specified, the disassembled unit or components can be reassembled simply by reversing the disassembly procedure. The assembly procedure is, therefore, omitted. Precautions for any disassembly or assembly procedure are titles Dsassembly/AssetnbZy Points.

  • Page 53: Disassembly And Assembly

    3.2 DISASSEMBLY AND ASSEMBLY Follow the precautions in Sti”on 3.1.1 when iiisasscmbling the printer. This chapter consists of the sections shown in the diagram below. Refer to the explokl view of the printer in the Appendix, if~ T’ Upper Housing Removal Printhead Unit Removal Page 3-3 3.2.1...

  • Page 54: Upper Housing Removal

    DisassemMyandAssembly Stylus 800+ service Manual 3.2.1 Upper Housing Removal Remove the printer cover by releasing the tabs holding it to the upper housing. [Step 1] Remove the paper support by releasing the tabs holding it to the lower housing. [Step 2] Remove the rear paper guide.
  • Page 55 Styilm m &wk@ mtnd Disassembly and Assemb& 3.2.2 Power Supply Unit (CI06 PSB-WPSE-B Board) Removal [Step 1] Remove theupperhousing. (Relkr tostxtion3.2.l.) [Step2] Disconnect thecablesfromconnectors CNl and CN30ftheC106PSB-B/PSE-B board. securing the power [Step3] Remove 5screws(2CBB(M3 x6),2 CBS(h43x6), 1CB(0)(M4X8)) supply unit to the lower housin~ as shown in the figure below. [Step4] Push in the locking tab and take out the power supply unit by sliding it toward the baclc of the printer.

  • Page 56: Main Controller (C134 Main Board) Removal

    Diaassambly and Assembly Stylus S00+ service Manual 3.2.3 Main Controller (C134 MAIN Board) Removal [Step 1] Remove the upper housing. (Refer tosection3.2.l.) [Step 2] Disconnect the cables from the connectors CN2, CN3, CN4, CN5, CN6, and CN7 of the C134 MAIN board. [Step 3] Remove 4 screws (2 CBB(M3 x IO)and 2 CBS(M3x6))and takeout thernaincontroller.

  • Page 57: Printer Mechanism (M-4811) Removal

    Disassembly andAssambly Styh&a m Suvka Man@ 3.2.4 Printer Mechanism (M-4811) Removal [Step 1] Remove theupperhousing. (Refer tosection3.2.L) [Step2] Remove thepowersupplyunit. (Refer tosecti@i3U.) [Step3] Remove themaincontder. (Refer tosection3X2.) [Step 4] Move the carnage tothecenterofthe printer. [Step 5] Remove 4screws (CB(M4X 16)) and takeout the printer mechanism. Wipe ofiany ink around the end of the ink drain tube when you remov e the mechanism.

  • Page 58: Printer Mechanism Disassembly

    Disassembly and AssembM Stylus S00+ Sawic@ Manual 3.2.5 Printer Mechanism Disassembly The procedures described in this section explain how to remove components from within the printer mechanism. 3.2.5.1 Printhead Unit Removal Remove the printer mechanism. (Refer to section 3.2.4.) [Step 1] Move the carnage to the middle of the printer.
  • Page 59 Sty&a 8W+ SUvica Maw Disassembly and Assamb/y Ink Carriage Ink Carriage .,. . Tension Bar , . , . , , , , . : ..Figure 3-7. Printhead Unit Removal (Continued) Rev. A...

  • Page 60: Pump Unit Removal

    DisaseembiyandAssembly Stvlus $00+ Service Manual 3.2.5.2 Pump Unit Removal [Step Remove the printer mechanism. (Refer to section 3.2.4.) [Step 2] Move the carriage to the middle of the printer. The carriage is located between the first and second paper guide rollers, as illustrated in the figure below. [Step 3] Remove 2 screws (CBB (M3 x 10)) attaching the front paper guide assembly to the mechanism.
  • Page 61 Styhla m Sarvka hWJual Dkassainbly and blaaembly (!?? , . - , ..Figure 3-9. Pump Unit Removal (Continued) (i/l ,$?. 3-1o Rev. A...

  • Page 62: Head Cleaner Replacement

    Stylus MIO+ Sarvks Manual Disassembly and Assembly 3.2.5.3 Head Cleaner Replacement [Step 1] Remove the pump unit. (Refer tosection3.2.5.2.) [Step 2] Remove the head cleaner from the pump unit. Keeping the head cleaner clean is extremely important to keep the ink injection system working properly in the printhead, and it directly aflects printing quality.

  • Page 63: Carriage Unit Removal

    stylus m SiWvka Riarnd Disassambty and Assambly 3.2.5.4 Cerriage Unit Removal [Step 1] Remove the printer mechanism (Refer to section 3.2.4.) Remove the tension spring that holds the CR motor in place. Then take the timing belt out [Step 2] of the CR motor drive pulley and the driven pulley.

  • Page 64: Cr Motor Removal

    Disassembly and Assembly Stvlus 800+ Sawica Manual 3.2.5.5 CR Motor Removal [Step 1] Remove theprintermechanism. (Refer tosection3.2.4.) [Step 2] Remove the tension spring and take thetifigbelt outofthe CR motor dnvepulley. [Step 3] Remove 3 screws (CP(P2) (M3 x 10)) securing the CR motor tothe CRmotorholder plate, and remove the CR motor.

  • Page 65: Pf Motor Removal

    $t’yhJa800+ ~Manua/ Dlaaaaembly and AaaamMy 3.2.5.6 PF Motor Removal [Step 1] Remove theprintermechams “ m. (Rei%r to section 3.2.4.) [Step2] Remove 3screws(CBB(M3x IO)), and remove theholdingplate. Since the holding plate retains the pressure springs under it, be sure not to loose them when removing the holding plate.
  • Page 66 Disassembly and Assembly Stylus 800+ service Manual 3.2.5.7 Paper Feed Roller Assembly Removal [Step 1] Remove theprintermeclwmism. (Refer tosection3.2.4.) [Step2] Remove thecarnage unit. (Refer tosection3.2.5.4.) [Step3] Remove2 screws (CBB (M3 x IO)), and remove theleft frame assembly. [Step 4] Remove2 screws (CBB (M3x 10)), and remove the right frame assembly.
  • Page 67 Chapter 4 Adjustment Table of Contents 4.1 OVERVIEW 4.1.1 Precaution for Adjusting the Printer......4-1 4.2 BI-DIRECTIONAL PRINTING ALIGNMENT ADJUSTMENT 4.3 DEFAULT SETTING PARAMETER REGISTRATION 4.4 PAPER GAP ADJUSTMENT...

  • Page 68: Overview

    Adjustment Stylus MM+ Service Manuai 4.1 OVERVIEW This section describes the adjustment procedures rquired when you disassemble and assemble the printer for repair. 4.1.1 Precaution for Adjusting the Printer Refer to the precaution below when adjusting the printer. Uniess othenwise specified, disconnect the power cable before you perform any adjust- ments.

  • Page 69: Default Setting Parameter Registration

    styh#8 m Scrvke Menual Adjustment 4.3 DEFAULT SEITING PARAMETER REGISTRATION The set-up value that specifies the product distribution destination is stored in EEPROM m the main board (C134 MAIN). Therefore, this set-up value must be written in EEPROM when the main board or the EEPROM chip is replaced.

  • Page 70: Figure

    Adjustment Stylus 800+ Service Manual Shaft holder Carriage guide shaft ;.. . PG Gauge RIGHT LEFT Adjust position Adjust position Figure 4-1. PG Adjustment -1 arriage Shaft h Ider .............
  • Page 71 Chapter 5 Troubleshooting Table of Contents 5.1 OVERVIEW 5.2 SELF-DIAGNOSTIC FUNCTION 5.3 TROUBLESHOOTING 5.3.1 Troubleshooting Abnormal Operations ......5-2 5.3.2 CI06 PSB-B/PSE-B Board Unit Repair.

  • Page 72: Table 5-1. Motor Resistance

    Troubleshooting Stylus 800+ Servios Manual 5.1 OVERVIEW The Stylus 800+ has a sophisticated, built-in selfdiagnostic function that reduces troubleshooting time b; identifying failed-components. The following tables show motor resistance ratings and sensor test points. Table 5-1. Motor Resistance Motor Resistance Remark CR Motor 10.OQ +...

  • Page 73: Troubleshooting

    Styhle - SwvJce&nlu/ Tmwbkshodng 5.3 TROUBLESHOOTING This section describes how to troubleshoot abnormal operations and repair the arcuit board unit. 5.3.1 Troubleshooting Abnormal Operations This section describes how to detect malfimctions, how to determine their CSUSe, and hOW to resolve them. Each entry in the table below refers you to a detailed troubleshooting table. Table 5-4.

  • Page 74: Table 5-5. The Printer Does Not Operate At All

    TtvuMaahooting Stylus 800+ service Manual Table 5-5. The Printer does Not Operate at All ‘indin~ Soiution )tep Checkpoint Cause Is connector CN1 on the Connect CN1 on Connector CN1 on the C106 C106 PSB-W PSB-B/PSE-B board maybe C106 PSB-B/PSE-B board disconnected? PSE-B board.

  • Page 75: Table 5-8. Carriage Error Displayed

    Stylus m SUvlce Msnusl Troul?leshooting Table 5-8. Carriage Error Displayed . . , .., - , . . , Checkpoint Finding step solution c a u s e Check the Turn off the printer and try to Cartiage mechanism, and The carriage mechanism is...

  • Page 76: Table 5-9. Paper Is Not Fed (Asf)

    Tnwbktshooting Stylus 800+ Service Manual Table 5-9. Paper is Not Fed (ASF) Finding Solution Step Checkpoint Cause Replace the Does the sensor toggle? The paper-end sensor may paper-end ‘ (Check with a multimeter.) be defective. sensor. Disconnect CN5 on the Cl 34...
  • Page 77 Stylua m SUvicehW)U/ Troubleshooting Table 5-10. Paper is Not Fed (Manuai Feed) Finding Solution Checkpoint Step cause Replace the Does the sensor toggle? The paper-end sensor may paper- ‘ (Check with a multimeter.) be defective. Disconnect CN5 on the C134 MAIN board and use a multimeter to check the coil resistance between: pin 1...

  • Page 78: Waste Ink Tank Overflow Displayed

    Troubleshooting Stylus S00+ Sarvice Manual Table 5-12. Paper Jam Displayed Cauaa Step Checkpoint Finding Solution Replace or reassemble the Is the paper path OK? The paper path is defective. paper path mechanism. Replace the The paper-end sensor is — — paper-end defective.
  • Page 79 stylus m Suv&o Manusi T~b/eshooting Table 5-16. Self-teat is Abnormal Cheokpdnt Step Finding Solutlon Csuse Connector CN2 on the C134 Is connector CN2 on the connect CN2 cm MAIN board my be C134 MAIN boatd the C134 MAIN disconnected? board. disconnected.
  • Page 80 Troubleshooting Stylus S00+ service Manual Table 5-18. Self-test Printout has Poor Quality (Line Spacing) Checkpoint Finding Solution Cause Step Replace or Check the paper feed The paper feed mechanism reassemble the mechanism gears and may be defective. gears and rollers. rollers.
  • Page 81 Slyhls m Servke Manual TmWeahooting Table 5-20. Abnormal Printing in On-line Mode (Bi-dkectional) step Finding SoIutkm Checkpoint Adjust the bidirectional The bidirectional printing — printing position. value may be incorrect. (Refer to Chapter Table 5-21. Abnormal Printing in On-1ine Mode (Printer) Finding solution Checkpoint...
  • Page 82 Stylus 800+ service Manual Troubleshooting 5.3.2 C106 PSB-B/PSE-B Board Unit Repair This section describes problems related to the power supply board (C106 PSBB/PSE-B). The table below presents various symptoms, likely causes, and checkpoints. The checkpoints retkr to waveforms, resistances, and other values to check to evaluate the operation of each component.

  • Page 83: C134 Main Board Unit Repair

    Tmd#eshmtiw SIJ@s 8@+ SU@cs Mvn#sJ 5.3.3 C134 MAIN Board Unit Repair This section describes problems related to the main controller board (C134 MAIN). The table below presents various symptoms, likely causes, and ctdcpoints. The checkpoints reikr to wavetlmns, resistarms, and other values to check to evaluate the operation of each compcment. Table 5-24.
  • Page 84 Troubleshooting Stylus 800+ Saffice Manual Table 5-24. Repair of the C134 MAIN Board (Continued) 5-13 Rev. A...
  • Page 85 Chapter 6 Maintenance Table of Contents 6.1 PREVENTIVE MAINTENANCE 6.2 SERVICE MAINTENANCE 6.2.1 Printhead Cleaning ......... 6-2 6.2.2 Waste Ink Drain Tank Replacement .

  • Page 86: Preventive Maintenance

    Maintenance Stylus 800+ Sarvice Manual 6.1 PREVENTIVE MAINTENANCE Although this printer is designed so that no specific maintenance is required on a regular basis, it is good;dea to ;lean the prin;er thoroughly whenever you get a chance: You can cle~: Outer case If it is dirty, clean it with a soft, clean cloth, dampened with mild detergent if necessary.

  • Page 87: Service Maintenance

    Styius9@+ SUvke Malnld Wniwwnca 6.2 SERVICE MAINTENANCE Certain maintenance is required when the printer detects an error or when you see a decline m print quality. 6.2.1 Printhead Cleaning U print quality deteriorates, clean the printhead using the built-in printhead cleanin gfunctkm. l%e printer has an automatic printhead cleaning cycle to ensure proper nozzle operation for ink injection as well as keep the printhead in good condition.

  • Page 88: Lubrication

    The printer must be lubrimted properly when it is disassembled for component replacement, or if the mechanical noise exceeds a certain level. Epson recommends only the lubricants listed in table below for this printer, both of which have been tested extensively and found to comply with the requirements of this printer mechanism.
  • Page 89 Styh#s$lUk $m?koM8nud Mdnlvnance “\ &.. Figure 6-1. Lubrication Points Rev. A...
  • Page 90 Appendix Table of Contents A.1 CONNECTOR SUMMARY A.2 CIRCUIT DIAGRAM A.3 CIRCUIT BOARD COMPONENT LAYOUT A-11 A.4 EXPLODED DIAGRAM List of Figures A-1. Interconnection of Major Components ..... . A-1 Figure Figure A-2.
  • Page 91 Appendix Stylus 800+ Service Manual A.1 CONNECTOR SUMMARY figure below shows the interconnection between the major components of the Stylus 800+........... . .
  • Page 92 Wnud Siylua Suidco Applmdix Table A-1. Connector Summary Daaoription Looation Board Centronics parallel VF C134 MAIN pins HEAD-1 (to ptinthead unit) HEAD-2 (to printhead unit) PE sensor PF motor CR motor PS-iine (to C106 PSB-WPSE-B) Panel control (to C106 PNL) AC input (UN) C106 PSB-WPSE-B MAIIVprinter mechanism)
  • Page 93 Appendix Stylus 800+ Sarvica Manual Table A-4. Connector Pin Assignments - CN3 Name Description Ground HCLK Synchronizing clock signal (to S1) Ground Latch signal (to S1) Ground Head serial data signal Ground Ink-end (IE) signal Power supply to the photodiode of HP sensor HP sensor (output) +-EN +5V Dc...
  • Page 94 Table A-9. Connector Pin Assignments- CN8 13sscriptkm Nemo +5V DC LED8 drive signal (L = LED on) SW1 input signal (L = Button pressed) SW2 input eignal SW3 input eignel SW4 input eignal PAUSE PAUSE input eigrbd LEDO drive signal LED1 drive signal LED2 drive signal LED3 drive signal...
  • Page 95 Appandix Stylus 800+ Sawica Manual .&I -?-k w> u> “i- Figure A-3. CI06 PSB-B Board Circuit Diagram raw. A...
  • Page 96 - - - - 1“4 Figure A-4. C106 PSE-B Board Circuit Diagram...
  • Page 97 Appendix Stylus 800+ Service Manual Swl 03 SW2 04 ~-osw3 SW3 05 O-. s W4 SW4 06 O-osws SW5 o ‘ 6 PAUSE 07 GND O ‘ +5V o ‘ +LE D8 LE D8 O @ LEDO LEDO 08 LED1...
  • Page 98 Mmuul Sty/us Um+ Su’v$@ Applmd& A.3 CIRCUIT BOARD COMPONENT LAYOUT +CLs ..mill 94 ....~ ..0 0 0 III? 0 0 0 0...
  • Page 99 Appendix Stylus 800+ Sewice Manual CMK-P2X*A I f i , - gi % i --------,. - 2082 20s1 +6!!70 -“! pJpJT~,~*,.,*,.[.,. ASSYo 2 0 1 3 0 3 0 0 0 C 106 PSB-B~ MODELEPS-21 “r Ct4K-P2X ZDe2 2 0 8 3 \“*r YJri .1.1.
  • Page 100 A.4 EXPLODED DIAGRAM Figure A-9. Stylus 800+ Exploded Diagram (1) Rev. A A-12...
  • Page 101 EPSON OVERSEAS MARKETING LOCATIONS EPSON DEUTSCHLAND GmbH EPSON AMERICA, INC. ZUlpicher StraBe 6,4000 Dkseldorf 11 20770 Madrona Avenue, F.R. Germany P.O. 2842 Phone: 0211-56030 Torrance, CA 90509-2842 Fax : 0211-504-7787 Phone: (800) 922-8911 Fax: (310)782-5220 EPSON UK LTD. EPSON FRANCE S.A.

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