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Stylus-500
SERVICE MANUAL
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EPSON COLOR INKJET PRINTER
Stylus-500
SERVICE MANUAL
EPSON
4006359
PREFACE
This document provides supplementary information to describe the EPSON Stylus COLOR 500, which is a follow-on version of the EPSON Stylus COLOR II. Therefore, you must refer to this information in conjunction with the EPSON Stylus COLOR II Service Manual for details on any subjects common to both printers.
-i-
EPSON Stylus COLOR 500 Service Manual
Product Description
1.1 FEATURES
The EPSON Stylus COLOR 500 is a small-footprint, personal-use color ink jet printer. The major new features of this printer are: t Newly developed black and color inks High-quality black printing Deep color printing t Simple control panel operation 3 No lock switches 4 LED lamps t A new design for the left guide edge locking mechanism in the ASF (auto sheet feeder)
Table 1-1. Consumables
Model S020093 S020097 S041059 S041025 S041060 S041061 S041026 S041062 S041067 S041048 S041071 S041072 S041063 S041064 S041054 Description Monochrome ink cartridge Color ink cartridge EPSON premium paper for 360 dpi printing (A4) EPSON premium paper for 360 dpi printing (A4) EPSON premium paper for 360 dpi printing (Letter) EPSON premium paper for 720 dpi printing (A4) EPSON premium paper for 720 dpi printing (A4) EPSON premium paper for 360 dpi printing (Letter) EPSON premium paper for 360 dpi printing (Legal) EPSON premium paper for 360 dpi printing (Legal) High-quality glossy paper (A4) High-quality glossy paper (Letter) Transparency film (A4) Transparency film (Letter) EPSON premium card stock for 720 dpi printing (A6)
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Product Description
EPSON Stylus COLOR 500 Service Manual
1.2 SPECIFICATIONS
This section provides detailed information about the EPSON Stylus COLOR 500.
1.2.1 Printing Specification Table 1-2. Character Tables and Typefaces
Bitmap fonts EPSON Roman EPSON Sans Serif EPSON Courier EPSON Prestige EPSON Script Scalable fonts
Character Tables
EPSON Roman EPSON Sans Serif
EPSON Roman T EPSON Sans Serif H
Standard version
Italic PC437 (U.S., Standard Europe) PC850 (Multilingual) PC860 (Portuguese) PC861 (Icelandic) PC863 (Canadian-French) PC865 (Nordic) BRASCII Abicomp Italic PC437 (U.S., Standard Europe) PC850 (Multilingual) PC437 Greek PC852 (East Europe) PC853 (Turkish) PC855 (Cyrillic) PC857 (Turkish) PC866 (Russian) PC869 (Greek) MAZOWIA (Poland) Code MJK (CSFR) ISO 8859-7(Latin/Greek) ISO Latin 1T (Turkish) Bulgaria (Bulgaria)
Supported
Supported
Supported
Supported
NLSP version
Supported
Supported Not supported
1.2.2 Electric Specification
Power consumption 120v Approx.18W (ISO10561 Letter pattern) 220-240V Approx. 18W (ISO10561 Letter pattern) Energy Star compliant
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EPSON Stylus COLOR 500 Service Manual
Product Description
1.3 INTERFACES
1.3.1 Hardware Interfaces
This section fully describes the EPSON Stylus COLOR 500 interfaces. The printer offers both a parallel and serial interface, standard.
1.3.1.1 Parallel Interface
Forward Channel
Transmission mode: Synchronization: Handshaking: Signal level: Connector type: 8 bit parallel, IEEE-1284 compatibility mode STROBE pulse BUSY and ACKNLG signal TTL compatible level (IEEE-1284 level 1 device) 57-30360 (Amphenol or equivalent)
The BUSY signal is set to HIGH before either ERROR is set LOW or PE is set HIGH, and BUSY is held HIGH until all these signals return to the inactive state. The BUSY signal goes HIGH in the following cases: · During data entry (See data transmission timing). · When the input data buffer is full. · When the INIT signal is at a LOW level, or during hardware initialization. · During a printer error condition (see ERROR signal). · During self-test printing. · In default setting mode. · When the parallel interface is not selected. The ERROR signal is LOW when the printer is in one of the following conditions: · Printer hardware error (fatal error condition). · Paper-out error. · Release lever operation error. The PE signal is HIGH during a paper-out error.
D ATA
DATA (n)
DATA (n+1)
-STROBE
500 ns (min.)
500 ns (min.)
500 ns (min.)
0 (min.)
B US Y
-ACKNLG
0 (min.) 500 ns (max.)
0 (min.)
500 ns ~10 µs
* : The rise and fall time of every output signal must be less than 120 ns. The rise and fall time of every input signal must be less than 200 ns.
Figure 1-1. Data Transmission Timing
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Product Description
EPSON Stylus COLOR 500 Service Manual
Table 1-4 shows the connector pin assignments and signals for the 8-bit parallel interface.
Table 1-3. Connector Pin Assignments and Signals (Forward Channel)
Pin No. Signal Name Return GND Pin 19 I/O Description This is strobe pulse. Reading of data is performed at the falling edge of this pulse. Signals DATA0 ~ DATA7 represent data bits 0 to 7, respectively. When a DATA signal is HIGH, the data is logical 1 and when LOW, data is logical 0. This signal is a negative pulse indicating that the printer can accept more data. When this signal is HIGH, the printer cannot receive data. When this signal is HIGH, the printer detects a paper-out error. This signal is always HIGH when the printer is powered on.
1
STROBE
I
2~9
DATA 0 ~ 7
20 ~ 27
I
10 11 12 13 14 15
ACKNLG BUSY PE SLCT AFXT NC
28 29 28 28 30 --
O O O O I --
Not connected. The falling edge of a negative pulse or a LOW signal on this line causes the printer to initialize. A 50 µs pulse, minimum, is necessary. When this signal is LOW, the printer detects an error. Not used. Pulled up to +5 V via 3.9 K resistor. Pulled up to +5 V via 3.3 K resistor. Chassis ground. Signal ground. Not used.
31
INIT
30
I
32 36 18 35 17 16, 33 19 - 30 15, 34
ERROR SLIN Logic H +5 V Chassis GND GND NC
29 30 -- -- -- -- --
O I O O -- -- --
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EPSON Stylus COLOR 500 Service Manual
Product Description
Reverse Channel
Transmission mode: Connector: Synchronization: Handshaking: Data transmission timing: Signal level: IEEE-1284 nibble mode. See forward channel. Refer to the IEEE-1284 specification. Refer to the IEEE-1284 specification. Refer to the IEEE-1284 specification. Refer to the IEEE-1284 specification.
Table 1-4. Connector Pin Assignments and Signals (Reverse Channel)
Return GND Pin 19
Pin No.
Signal Name
I/O
Description
1
Host Clk
I
Host clock signal. DATA0 ~ DATA7 signals represent data bits 0 to 7, respectively. Each signal is at a HIGH level when data is logical 1 and at a LOW level when data is logical 0. These signals are used to transfer the extensibility request values (described in IEEE-P1284) to the printer. Printer clock signal. Printer busy signal and reverse channel transfer data 3 or 7. Acknowledge data request signal and reverse channel transfer data bit 2 or 6. X-flag signal and reverse channel transfer data bits 1 or 5. Host busy signal. Not used. Data available and reverse channel data bits 0 or 4. Active signal for IEEE-P1284 mode. Pulled up to +5 V via 3.9K resistor. Pulled up to +5 V via 3.3K resistor. Chassis ground. Signal ground. Not connected.
2~9
DATA0 ~ 7
20 - 27
I
10 11 12 13 14 31 32 36 18 35 17 16, 33 19 - 30 15, 34
PtrClk Ptr Busy / Data Bits 3, 7 Ack Data Req / Data Bits 2, 6 Xflag / Data Bits 1, 5 Host Busy INIT Data Avail / Data Bits 0, 4 1284-Active Logic-H +5 V Chassis GND GND NC
28 29 28 28 30 30 29 30 -- -- -- -- --
O O O O I I O I O O -- -- --
Note:
I / O refers to direction of the signal flow from the view of the printer.
Rev.A
1-5
Product Description
Extensibility Request
EPSON Stylus COLOR 500 Service Manual
The printer responds affirmatively when the extensibility request values are 00H or 04H. That means: 00H: Request Nibble Mode Reverse Channel Transfer 04H: Request Device ID; Return Data Using Nibble Mode Channel Transfer. The printer sends following device ID string when it is requested: ESC/P2 mode X24E mode 00H 3AH 00H 3BH MFG: EPSON; MFG: EPSON; CMD:ESCPL2-00 CMD: PRPXL24-00 MDL: Stylus COLOR 500; MDL: Stylus COLOR 500; CLS: PRINTER; CLS: PRINTER;
Device ID
Note:
00H denotes a hexadecimal value of zero.
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Rev.B
EPSON Stylus COLOR 500 Service Manual
Product Description
1.4 POWER AND CONTROL PANEL OPERATIONS
This section describes the controls used to operate the EPSON Stylus COLOR 500.
1.4.1 Power Switch
The Power switch is in the right rear corner of the printer.
CAUTION
This switch is for the primary power supply circuit. Therefore, you must put the printer in the waiting condition to make it cap the head before power off.
1.4.2 CONTROL PANEL
The control panel for this printer is in the center of the upper case. The panel has 3 non-lock type pushbuttons and 4 LEDs.
Power
Ink Out
Cleaning
Cleaning
Load / Eject
Ink Out
Paper Out
Figure 1-2. Panel Appearance
1.4.2.1 Buttons and Indicators
Cleaning (Black)
This button makes the printer perform the black head cleaning.
Cleaning (Color)
This button makes the printer perform the color head cleaning.
Load / Eject
This button loads and ejects paper. t After you hold down Load / Eject for 3 seconds, the printer carriage moves to the ink cartridge installation position. When Load / Eject is pressed again, the CR returns to the home position.
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Product Description
EPSON Stylus COLOR 500 Service Manual
Indicators
Power
Lights when the printer's Power switch is On, and AC power is supplied.
Ink Out (Black)
Lights when there is no ink in the black ink cartridge, and blinks when the black ink cartridge is low.
Ink Out (Color)
Lights when there is no ink in the color ink cartridge, and blinks when the color ink cartridge is low.
Paper Out
Lights during a paper out, and blinks during a paper jam.
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EPSON Stylus COLOR 500 Service Manual
Product Description
1.4.3 Panel Functions at Power On
The table below gives functions for different button combinations at power on.
Table 1-5. Panel Functions at Power On
Button Cleaning (Black) Load / Eject Load / Eject + Cleaning (Black) Cleaning (Color) Load / Eject + Cleaning (Color) Cleaning (Black) + Cleaning (Color) Load / Eject + Cleaning (Black) + Cleaning (Color), Load / Eject less than 3 seconds Pressed along with Power On Starts demonstration print. Enters the default setting mode. Enters the printer adjustment mode. Starts LQ self-test printing. Enters the ink smudge prevention mode. Enters hex dump mode. Enters reset mode for the EEPROM and Timer IC. (Factory and service use only.)
Note :
1. "+" indicates pressing one button while holding the other button(s) down. 2. EEPROM and Timer IC resets are for use by authorized servicers only.
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Product Description
EPSON Stylus COLOR 500 Service Manual
1.4.4 Printer Conditions and Status
This section describes how the printer indicates status and error conditions using LEDs.
Table 1-6. Indicator Status
LEDs Printer Status Power Power on condition On Ink Out (Black) -- Ink Out (Color) -- Paper Out --
Data exist Ink sequence Ink cartridge change mode
Blinks Blinks Blinks
-- -- --
-- -- --
-- -- --
Paper out Paper jam condition No ink cartridge or Ink end (black) Ink level low (black) No ink cartridge or Ink end (color) Ink level low (color) Maintenance request EEPROM and timer reset Fatal error
-- -- -- -- -- -- Blinks Rapidly -- Blinks Rapidly
-- -- On Blinks -- -- Blinks Rapidly
-- -- -- -- On Blinks Blinks Rapidly
On Blinks -- -- -- -- Blinks Rapidly
On for 1 second only On On On
Notes:
When transparency paper is selected, unidirectional printing is selected. -- Does not affect status listed in the left-hand column.
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EPSON Stylus COLOR 500 Service Manual
Product Description
1.4.5 Default Settings
This printer has user-selectable default settings, which it refers to at initialization. The default (and factory) settings are listed in the table on the next page.
1.4.5.1 Setting Method
The method of setting defaults is shown in the flowchart below.
S TA RT
Hold down the Load / Eject button with power on.
The printer prints out: ROM Version No. Protect Counter Value
Select language for setting defaults?
Cleaning (Black)
Use the language setting mode.
Cleaning (Color)
Print current settings.
Select the menu for setting defaults?
Cleaning (Black)
Select the menu : Cleaning (Black) button Set the menu : Cleaning (Color) button.
Change the value : Cleaning (Black) button Set the value : Cleaning (Color) button.
Yes
Continue setting defaults?
No
Power off the printer
END
Figure 1-3. Default Setting Flowchart
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Product Description
EPSON Stylus COLOR 500 Service Manual
1.4.5.2 Setting Menus
The default setting menus are:
Table 1-7. Default Settings
Menus Print direction Font Pitch I/F mode Auto I/F wait mode Software Auto CR (IBM mode only) AGM (IBM mode only) Settings (Underlines Indicate Factory Default Settings) Auto / Bi-D / Uni-D Roman / Sans Serif / Courier / Prestige / Script / Roman T / Sans Serif H 10 cpi / 12 cpi / 15 cpi / 17.1 cpi / 20 cpi / Proportional Auto / Parallel / Serial 10 seconds / 30 seconds ESC/P2 / IBM X24E On / Off On / Off Italic U.S.A. Italic Germany Italic Denmark Italic Italy PC 437 PC 860 PC 865 BRASCII Italic U.S.A. Italic Germany Italic Denmark Italic Italy PC 437 PC 850 PC 855 PC 857 PC 869 Code MJK ISO Latin 1T On / Off Off: Used in standalone environment On: Used in network environment 3 mm / 8.5 mm / Others *1
Envelopes / Index cards (portrait)
Character tables (standard version)
Italic France Italic U.K. Italic Sweden Italic Spain 1 PC 850 PC 863 PC 861 Abicomp Italic France Italic U.K. Italic Sweden Italic Spain 1 PC 437 Greek PC 853 PC 852 PC 866 MAZOWIA ISO 8859-7 Bulgaria
Character tables (NLSP version)
Auto line feed Network I/F mode Loading position
Thick paper Economy mode Note
On / Off
*1. Other settings are set using special commands for the EEPROM.
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EPSON Stylus COLOR 500 Service Manual
Product Description
1.5 INK CARTRIDGE SPECIFICATIONS
Black
Type Model Color Print capacity Ink Life Storage temperature Exclusive cartridge S020093 Black 620 pages / A4 (LQ Roman EQMA text) 2 years from production 20 °C ~ 40 °C (4° F ~ 104° F) Storage, less than a month at 40 °C (104° F) 30 °C ~ 40 °C (86° F ~ 104° F) Packing storage, less than a month at 40 °C (104° F) 30 °C ~ 60 °C (86° F ~ 140° F) Transit, under 120 hours at 60° C (140° F) and less than a month at 40° C (104° F ) Dimensions 19.8 mm (W) × 52.7 mm (D) × 38.5 mm (H) 0.8" (W) x 2.1" (D) x 1.5" (H)
Color
Type Model Color Print capacity Ink Life Storage temperatures Exclusive cartridge S020097 Magenta, cyan, yellow 320 pages /A4 (360 dpi, 5% duty, each color) 2 years from production 20° C ~ 40° C (4° F ~ 104° F) Storage, less than a month at 40° C (104° F) 30° C ~ 40° C (86° F ~ 104° F) Packing storage, less than a month at 40° C (104° F) 30° C ~ 60° C (86° F ~ 140° F) Transit, less than 120 hours at 60 °C (140° F) and less than a month at 40° C (104° F ) Dimensions 42.9 mm (W) × 56.8 mm (D) × 38.5 mm (H) 1.7" (W) x 2.2" (D) x 1.5" (D)
Rev.A
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Product Description
EPSON Stylus COLOR 500 Service Manual
1.6 MAIN COMPONENTS
The main components of the EPSON Stylus COLOR 500 are designed for easy removal and repair. The main components are: t Main Board (C161 MAIN) t Power Supply Board (C160 PSB/PSE) t Panel Board (C161 PNL) t Mechanism t Housing
1.6.1 Main Board (C161 MAIN)
This board consists of a CPU (TMP95C061F), a gate array (E05B12), ROM (CG), PROM, DRAM, EEPROM, motor driver ICs, printhead driver circuits, etc.
1.6.2 Power Supply Board (C160 PSB/PSE)
This power supply board is the same as the one used for the Stylus Color IIs. This board consists of a transformer, a switching FET, regulator IC, diode bridge, etc. This board has two ratings for input AC voltages.
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EPSON Stylus COLOR 500 Service Manual
Operation Principles
2.1 OVERVIEW
This section describes operating principles of the EPSON Stylus COLOR 500 printer mechanism and electrical circuits.
2.2 OPERATING PRINCIPLES OF THE PRINTER MECHANISM
2.2.1 Principles of the Printing Operation
The printhead operates in one of two modes to eject ink from each nozzle: t Normal state No electrical charge is applied to the piezoelectric element attached to the back of the cavity, and pressure inside the cavity is kept at a constant level. Ejecting state The head data signal is applied to the specific nozzle control line to select the active nozzle for printing, and the piezoelectric element is gradually charged by the drive voltage. Charging the piezoelectric element bends the vibration plate to compress the cavity. Then, ink is ejected from the nozzle.
t
Cavity
Nozzle
Piezo Vibration Plate
Normal state
Cavity
Piezo Vibration Plate
Ejecting state
Figure 2-1. Principles of the Printing Operation
When the ink charge or printhead cleaning operation is performed, ink in the cavity is vacuumed out with a pump mechanism. During printing, on the other hand, ink is simultaneously supplied from the ink cartridge and ejected from the nozzle, depending on changes in the volume of the cavity. A thermistor is attached to the side of the color printhead driver board to monitor the temperature, because the viscosity of the ink varies, depending on the temperature. The detected temperature level is fed back to the printhead drive voltage control circuit to change the time of the Tc pulse.
Rev.A
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Operating Principles
EPSON Stylus COLOR 500 Service Manual
2.3 OPERATING PRINCIPLES OF THE ELECTRICAL CIRCUITS
The EPSON Stylus COLOR 500 contains the following circuit board units: t t t C161 MAIN / C198 MAIN Board (main control circuit board) C160 PSB/PSE Board (power supply circuit board). This board is the same as for the Stylus COLOR. C161 PNL (control panel board)
In addition to the circuit boards above, part of the printhead driver circuit is built on a separate circuit board installed in the carriage unit; the printhead is attached directly to this board. The figure below shows a block diagram of the electrical circuitry.
2.3.1 Operating Principles of the Main Control Circuit
The main control circuit for this printer is the C161 MAIN Board. This circuit is controlled by a 16-bit TMP96C061AF CPU (IC1), running at a 12.5 MHz internal clock (25 MHz external clock). A 4M DRAM (CAS method) on this board is controlled by the CPU itself. The CPU manages the serial interface control (RS-422 for Mac). C198 MAIN board equips with the hybrid IC for monochrome head common driver circuit. Gate array E05B12 (IC2) manages printhead driver control, the external Centronics® parallel I/F, the control panel, and the motor control. The main board also is equipped with a 93C46 EEPROM (IC11) to store certain parameters, such as the printer mechanism control parameter, default setting parameters, as well as the special counter value used for printhead (ink management) protection. The NJU6355E timer IC (IC10) counts each time the printer is cleaned and keeps track of how long since the printer has been used, allowing the printer to be cleaned only when necessary.
PROM(4M) (IC3)
PROM (IC4)
DRAM (IC5)
CG-ROM (IC6)
CG-ROM (IC7) Data Bus
Address Bus (IC8) Reset PST592D (Logic) D MAR EQ CL K
SD I/O
To B To A
CPU TMP95C061AF (IC1)
E05B12 (IC2)
Panel
EE PR OM (IC11) 93C46
Reset (IC9) M51955B (Power)
RS-422 Serial I/F
Vx
(IC10) Battery
Parallel I/F (Centronics)
NJU6355E (Timer Counter)
C161/ C198 MAIN Board
From A
Black/Color Head Common Driver Circuit
Carriage
SED6100D0A/ SED6110D0A (U1) Black 64 Nozzles Color 60 Nozzles
SED5619D0A (U1)
From B
UDN2917EB (IC14, 15) Carriage/Paper Feed Motor Driver
Figure 2-2. Main Control Circuit Block Diagram
2-2 Rev.B
Black/Color Head Common and Nozzle Selector Drive Signal
Carriage/Paper Feed Drive Signal
EPSON Stylus COLOR 500 Service Manual
Operation Principles
2.3.1.1 Printhead Driver Circuit
The printhead driver circuit for this printer is composed of the following two parts: u u Common driver circuit (trapezoidal drive pulse generation) Head driver circuit (nozzle control built on the printhead)
The SED6100D0A/SED6110D0A monochrome printhead driver circuit for the 64-dot head on the carriage acts as a nozzle selector to drive the black printhead nozzles selectively. The SED5619D0A 60-dot (Y, M, C × 20 ) thermal head driver in the color printhead's driver circuit on the carriage also acts as a nozzle selector to drive the color head nozzles selectively. Print data is converted to serial data by gate array E05B12 (IC2) and is output from port BHSO to the black head driver circuit or output from port CHSO to the color head driver circuit. Then, head driver SED6100D0A/ SED6110D0A or SED5619D0A latches the head data when gate array E05B12 outputs the BHLAT or CHLAT signal, and the latched data becomes 64-bit parallel data for the black head, or 60-bit parallel data for the color head. One bit corresponds to each nozzle. When data transfer and nozzle selection are complete, gate array E05B12 outputs the common driver pulse Pc (charge pulse) and Pd (discharge pulse) to the common driver circuit. The common driver circuit then generates the trapezoidal pulse and applies it to the printhead as a common driver pulse. After this, the nozzle selected by the head data is activated to eject ink.
BHSO
#1 #64
BHCLK BHLAT Head Driv e Voltage
COM GN D Pc
Pd
Figure 2-2. Print Data Transmission Timing
E05B12 (IC2)
Pc Pd BHLAT BHCLK BHSO Common Driver
CN1 CN8
SED6 100D0A SED6110D0A (U1)
COM1-36 LAT D OU T6 3 - 1 CLK D OU T6 4 - 2 SI Row A Row B
SED5619D0A (U1)
Pc Pd CHLAT CHCLK CHSO Common Dri ver
CN9
COM1-3 L A T DO64-61 CLK SI DO60 - 1 Not Con nect ed Ma ge nt a Cyan Yellow
C1 6 1 MA I N
CN1
On Carriage (Head Driver Board)
Figure 2-3. Printhead Driver Circuit Block Diagram
Rev.A 2-3
Operating Principles
EPSON Stylus COLOR 500 Service Manual
2.4 INK SYSTEM MANAGEMENT
The ink system is controlled to protect the printhead and ink supply system and ensure high-quality output.
2.4.1 Counter
EEPROM 93C46 (IC11) on the main board stores certain counter and timer values used for controlling ink system operation. The counters are stored in the EEPROM on the main board, and while the printer is on, this data is stored into the RAM on the main board. t Ink Consumption Counter This counter value is stored in the EEPROM on the main board, and while the printer is on, the data is stored in RAM on the main board. This counter is always reset when the ink cartridge is removed.
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EPSON Stylus COLOR 500 Service Manual
Disassembly and Assembly
3.1 OVERVIEW
This section describes procedures for disassembling the main components of the printer. Unless otherwise specified, disassembled units or components can be reassembled by reversing disassembly procedures, so no assembly procedures are included. Precautions for any disassembly or assembly procedure are described under the heading "Disassembly/Assembly Points". Adjustments required after assembly are described under the heading "Required Adjustments".
3.1.1 Precautions for Disassembling the Printer
WARNING
u Disconnect the power cable before disassembling or assembling the printer. u Wear goggles to protect your eyes from ink. If ink gets in your eye, flush it with fresh water and see a doctor immediately. If ink comes into contact with your skin, wash it off with soap and water. If irritation occurs, contact a physician. u A lithium battery is installed on the C161 MAIN/C198 MAIN board of this printer. Be sure to observe the following instructions when servicing the battery: 1. Keep the battery away from any metal or other batteries so that electrodes of opposite polarity do not come in contact with each other. 2. Do not heat the battery or place it near fire. 3. Do not solder on any part of the battery. (Doing so may result in leakage of electrolyte from the battery, burning, or explosion. The leakage may affect other devices close to the battery.) 4. Do not charge the battery. (An explosive gas may be generated inside the battery, and cause burning or explosion.) 5. Do not dismantle the battery. (The gas inside the battery may hurt your throat. Leakage, burning, or explosion may also result.) 6. Do not install the battery in the wrong direction. (This may cause burning or explosion.)
CAUTION
There is danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type, recommended by the manufacturer. Dispose of used batteries according to the government's laws and regulations.
ATTENTION
Risque d'explosion si la pile est remplacée incorrectement. Ne remplacer que par une pile du même type ou d'un type équivalent recommandé par le fabricant. Elminer les piles déchargées selon les lois et les règles de sécurité en vigueur.
CAUTION
u Never remove the ink cartridge from the carriage unless specified to do so. u When transporting the printer after installing the ink cartridge, be sure to pack the printer for transportation without removing the ink cartridge. u Use only recommended tools for disassembling, assembling, or adjusting the printer. u Apply lubricants and adhesives as specified. (See Chapter 6.) u Make specified adjustments when you disassemble the printer. (See Chapter 4.)
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Disassembly and Assembly
EPSON Stylus COLOR 500 Service Manual
3.2 DISASSEMBLY AND ASSEMBLY
CAUTION
Follow the precautions in Section 3.1.1 when disassembling the printer. This section consists of the topics shown in the diagram below. See the exploded view of the printer in the Appendix, if necessary.
3.2.1 ASF (Auto Sheet Feeder) Assembly Removal
1. 2. 3. 4. 5. Remove the upper housing assembly. (See EPSON Stylus COLOR II Service Manual, Section 3.2.1.) Disconnect the PS sensor cable from connector CN11 on the C161 / C198 MAIN board. Remove 2 CBS (3x8) screws, a plain washer, and a spacer securing the ASF assembly to the base frame. Move the paper guide to the stopper on the ASF paper support, and bend the back of the left guide toward the rear. Remove the ASF assembly by lifting from the rear of the printer and pulling it back.
DISASSEMBLY/ASSEMBLY POINTS
u Do not install with the power supply cable under the ASF assembly. u To attach the ASF assembly to the base frame, insert the projections from the ASF assembly into corresponding holes in the base frame.
Projections
CBS (3x8) Plain Washer Spacer
Pap er Gu ide
Projections
CBS (3x8)
Figure 3-1. ASF Assembly Removal
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EPSON Stylus COLOR 500 Service Manual
Disassembly and Assembly
3.2.2 Black Head Removal
CAUTION
Although the EPSON Stylus COLOR 500's printhead is not compatible with the printhead for the Stylus COLOR II, either printhead can fit in the other printer physically. So, take care not to misassemble the printer with the wrong printhead. 1. 2. 3. 4. 5. 6. 7. Remove the upper housing assembly. (See EPSON Stylus COLOR II Service Manual, Section 3.2.1.) Remove the cartridge sensor cable from the cartridge sensor connector. Remove the black cartridge lever from black ink cartridge holder H. Remove the CBS (2.5x8) screw securing cartridge holder H to the carriage unit. Disengage the hooks for cartridge holder H that secure it to the carriage unit. Remove holder H by pulling it upward. Remove the head fastening pin from the carriage unit. Remove the black printhead. Disconnect the black cartridge sensor harness from the printhead.
Cartridge Holder H
CB(O) (2.5x8)
Cartridge Sensor
Hooks Black Head Cable Black Printhead CB(O) (2.5x8)
Cartridge Sensor Cable
Cartridge Sensor Connector
Carriage Unit
Figure 3-2. Black Head Removal
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Disassembly and Assembly
EPSON Stylus COLOR 500 Service Manual
CAUTION
u After you remove the ink cartridge, always install a new cartridge immediately. u The ink cartridge always must be installed in carriage unit so that the printhead does not dry up. u The carriage unit must be moved to carriage home position and fixed to the base frame with the CR clamp so that it does not move during transport. (See EPSON Stylus COLOR II Service Manual, Section 3.2.10.) Otherwise, the carriage may receive permanent damage.
DISASSEMBLY/ASSEMBLY POINT
u Fit the head fastening pin completely into the notch in the carriage unit. (Refer to EPSON Stylus COLOR II Service Manual, Figure 3-21.) u Install the cartridge sensor cable in the carriage unit as shown in the EPSON Stylus COLOR II Service Manual, Figure 3-21.
Cartridge Sensor Connector
Black Printhead
Head Fastening Pin
Carriage Unit Notches
Figure 3-3. Inside the Carriage Unit
REQUIRED ADJUSTMENT
After removing or changing the black head, perform the following adjustments: 1. Black head angle adjustment (See EPSON Stylus COLOR II Service Manual, Section 4.1.4) 2. Black-color head vertical adjustment (See EPSON stylus COLOR II, Service Manual, Section 4.1.5) 3. Head gap adjustment (See EPSON Stylus COLOR II Service Manual, Section 4.1.3) 4. Bi-D alignment adjustment (See EPSON Stylus COLOR II Service Manual, Section 4.1.2)
CAUTION
The following data is written on the printheads:
Nozzles ID4 ID3 L R ID1 ID2 Color Head Drive Voltage Indication
The Rank of Holding Time 2 Head Drive Voltage (VH1)
Standard Head Voltage (VH2)
Se rial Nu mb er
Black Head
Color Head
Figure 3-4. Data Found on the Printhead
3-4
Rev.B
EPSON Stylus COLOR 500 Service Manual
Disassembly and Assembly
3.2.3 Color Head Removal
1. 2. 3. Remove the upper housing assembly. (See EPSON Stylus COLOR II Service Manual, Section 3.2.1.) Push the head fastening lever back, and remove the color printhead with the color ink cartridge up. Disconnect the color head cable from the color printhead.
DISASSEMBLY/ASSEMBLY POINT
u Attach the color printhead to the carriage by installing the color printhead so that the color head can be seen projecting from the hole in the right side of the carriage window. u Place the color head cable so it is attached by the projection of head fastening lever.
Color Cartridge Lever
Color Head
Head Fastening Lever
Carriage Unit
Color Head
Projection on Color Head
Color Head Cable
Head Cable
Projection on Head Fastening Lever Head Fastening Lever
Figure 3-5. Color Head Removal
Rev.B 3-5
Disassembly and Assembly
EPSON Stylus COLOR 500 Service Manual
CAUTION
u After removing an ink cartridge, always install a new cartridge immediately. u The ink cartridge always must be installed in the carriage unit, so the printhead does not dry up. u The carriage unit must be moved to carriage home position and fixed to base frame with the CR clamp so that it does not move during transport. (See EPSON Stylus COLOR II Service Manual, Section 3.2.10.) Otherwise, the carriage may receive permanent damage.
REQUIRED ADJUSTMENT
After removing or changing the color head, perform the following adjustments: 1. Head data writing operation (See EPSON Stylus COLOR II Service Manual, Section 4.1.3.) 2. Color head angle adjustment (See EPSON Stylus COLOR II Service Manual, Section 4.1.5.) 3. Bi-D alignment adjustment (See EPSON Stylus COLOR II Service Manual, Section 4.1.6.) 4. Black-color head vertical adjustment (See EPSON stylus COLOR II Service Manual, Section 4.1.7.) 5. Head gap adjustment (See EPSON Stylus COLOR II Service Manual, Section 4.1.8.)
CAUTION
The data shown in Figure 3-4 is written on the printheads: u If the value of VH2 is the same as VH1, HV2 is abbreviated. So, input the value of HV1 as VH2.
3-6
Rev.B
EPSON Stylus COLOR 500 Service Manual
Disassembly and Assembly
3.2.4 Printer Mechanism Removal
3.2.4.1 Drive Roller Removal
1. 2. 3. 4. 5. 6. 7. Remove the printer mechanism. (See EPSON Stylus COLOR II Service Manual, Section 3.2.4.) Remove the pump unit. (See EPSON Stylus COLOR II Service Manual, Section 3.2.6.1.) Remove the carriage unit. (See EPSON Stylus COLOR II Service Manual, Section 3.2.6.5.) Remove the lower paper guide assembly. (See EPSON Stylus COLOR II Service Manual, Section 3.2.6.6.) Remove the grounding spring connecting between the M/B shield plate and PF drive roller assembly on the left side of the printer. Disengage one end of the 46.3 torsion spring from the base frame. Then remove the upper paper guides and the left upper paper guide from the base frame. On the left and right frames on the each side of the printer, turn bushing 10 to disengage it from the frame. Then remove the drive roller assembly pulling it upward.
CAUTION
For paper feed accuracy, be careful not to hurt or mar the teeth of spur gear 43.2.
PF Drive Roller Assembly Grounding Spring
M/B Shield Plate
Figure 3-6. Remove the Grounding Spring
Rev.B
3-7
EPSON Stylus COLOR 500 Service Manual
Adjustment
4.1 OVERVIEW
This section describes adjustments required when the printer is disassembled and assembled for repair. Since this printer has both black and color heads, it needs new adjustments not required for previous printers. Perform the appropriate adjustments by referring to the following table.
CAUTION
u Always perform adjustments in the order indicated. u When printing adjustment patterns, use the exclusive 720 dpi paper. u Always install a new ink cartridge immediately after removing the old one at returning to user.
Table 4-1. Required Adjustments
Work Performed Adjustment Required 1. Writing head data (See Section 4.1.2.) 2. Bi-D alignment adjustment (See EPSON Stylus COLOR II service manual, Section 4.1.6.) 3. Black - color head vertical adjustment (See EPSON Stylus COLOR II service manual, Section 4.1.7.) 4. Head gap adjustment (See EPSON Stylus COLOR II service manual, Section 4.1.8.) 1. Writing destination data (See Section 4.1.1.) 2. Writing head data (See Section 4.1.2.) 3. Bi-D alignment adjustment (See EPSON Stylus COLOR II service manual, Section 4.1.6.) 4. Black - color head vertical adjustment (See EPSON Stylus COLOR II service manual, Section 4.1.7.) 5. Head gap adjustment (See EPSON Stylus COLOR II service manual, Section 4.1.8.) 1. Writing head data (See Section 4.1.2.) 2. Black head angle adjustment (See EPSON Stylus COLOR II service manual, Section 4.1.4.) 3. Bi-D alignment adjustment (See EPSON Stylus COLOR II service manual, Section 4.1.6.) 4. Black - color head vertical adjustment (See EPSON Stylus COLOR II service manual, Section 4.1.7.) 5. Head gap adjustment (See EPSON Stylus COLOR II service manual, Section 4.1.8.) 1. Writing head data (See Section 4.1.2.) 2. Color head angle adjustment (See EPSON Stylus COLOR II service manual Section 4.1.5.) 3. Bi-D alignment adjustment (See EPSON Stylus COLOR II service manual Section 4.1.6.) 4. Black - color head vertical adjustment (See EPSON Stylus COLOR II service manual Section 4.1.7.) 5. Head gap adjustment (See EPSON Stylus COLOR II service manual Section 4.1.8.)
After disassembling or replacing parts in the printer mechanism
After replacing the C161 / C198 MAIN board or the printer mechanism
After replacing or disassembling the black head (board)
After replacing or disassembling the color head (board)
Rev.B
4-1
Adjustment
EPSON Stylus COLOR 500 Service Manual
Table 4-1. Required Adjustments (continued)
Work Performed Adjustment Required 1. Writing head data (See Section 4.1.2.) 2. Black head angle adjustment (See EPSON Stylus COLOR II service manual Section 4.1.4.) 3. Color head angle adjustment (See EPSON Stylus COLOR II service manual Section 4.1.5.) 4. Bi-D alignment adjustment (See EPSON Stylus COLOR II service manual Section 4.1.6.) 5. Black - color head vertical adjustment (See EPSON Stylus COLOR II service manual Section 4.1.7.) 6. Head gap adjustment (See EPSON Stylus COLOR II service manual Section 4.1.8.) 1. Platen gap adjustment (See EPSON Stylus COLOR II service manual Section 4.1.1.) 2. Writing head data (See Section 4.1.2.) 3. Black head angle adjustment (See EPSON Stylus COLOR II service manual Section 4.1.4.) 4. Color head angle adjustment (See EPSON Stylus COLOR II service manual Section 4.1.5.) 5. Bi-D alignment adjustment (See EPSON Stylus COLOR II service manual Section 4.1.6.) 6. Black - color head vertical adjustment (See EPSON Stylus COLOR II service manual Section 4.1.7.) 7. Head gap adjustment (See EPSON Stylus COLOR II service manual Section 4.1.8.)
After replacing or disassembling both the color and black heads
After replacing or disassembling the carriage unit
4-2
Rev.B
EPSON Stylus COLOR 500 Service Manual
Adjustment
4.1.1 Writing the Destination Data
The setup value that specifies the printer destination is stored in an EEPROM on the C161 / C198 MAIN board. Therefore, this setup value must be rewritten to the EEPROM when the printer mechanism, the main board, or the EEPROM chip is replaced, or whenever the EEPROM is reset.
CAUTION
Before writing the destination, you must set the Interface Setting to the Parallel interface·or Auto Select setting. 1. 2. Connect a PC to the target printer using a parallel interface cable and turn the printer on. Load BASIC on the PC, and run the program. Load 720 dpi paper into the printer. Then the main menu appears as shown below:
EPSON STYLUS COLOR 500 Adjustment Program Customer data <> **/**/** ( Customer data input ) .... 1 ( Adjustment/Print Inspection ) .... 2 ( END Select Menu :? s 3. Choose 1 first. The Destination setting menu appears on the display. ) .... E
Factory Setting (1st : Program Ver. 0 : Standard 1 : Japan ) (2nd : Market 0 : Standard 1 : NLSP ) (3rd : C.G. Table 0 : Italic U.S.A 1 : PC437 2 : PC866) Memory-SW data (3 col data) :? s 4. Refer to Table 4-3 to input a 3-digit number for the destination (For example, USA: 000). Then the main menu appears again.
Table 4-2. Customer Data
Destination EAI EAI (Latin America) EAL Code 000 000 Destination EDG EFS Code 001 001 Destination EIS EIB EDG (NLSP) EUL (Middle East ) Code 001 001 Destination ETT EHK Code 000 001
000
EUL EUL (Northern Europe)
001
011
Russia
012
ESP Thai
000 300
001
001
Korea
200
Rev.B
4-3
Adjustment
5.
EPSON Stylus COLOR 500 Service Manual
Choose 2 to enter the adjustment mode. The adjustment select menu appears as follows:
EPSON STYLUS COLOR 500 Adjustment Program Rev. x Customer : Customer data 0. Initial Ink Charge 1. Head Voltage Values 2. Angular Head Adjustment 3. Bi-D Adjustment 4. Head Liner Adjustment 5. Head-GAP Timing Adjustment 6. Head Data Indication 9. Customer data charge / END Select Menu ? s
Note:
6.
The ink consumption counter is always reset when the ink cartridge is removed.
After another adjustment, you type 9 and press Enter. The destination data is installed into the printer and the main menu appears on the display. If you want end the program, press the E key.
CAUTION
The values you have set are not saved permanently in the EEPROM until the printer is turned off. Turn off the printer at once after the adjustments are complete. 11. Turn off the printer.
4-4
Rev.B
EPSON Stylus COLOR 500 Service Manual
Adjustment
4.1.2 Writing the Head Data
4.1.2.1 Writing the Head Data
Head data settings for each printhead are stored in the EEPROM on the C161 MAIN/C198 MAIN board. Therefore, these setup values must be rewritten to the EEPROM when the printer mechanism, the main board, or the EEPROM chip is replaced, but the head data and destination settings are not reset whenever the EEPROM is reset by panel operation.
CAUTION
Before writing the destination, you must set the Interface Setting to the Parallel interface·or Auto Select setting. 1. 2. Connect a PC to the target printer using a parallel interface cable and turn the printer on. Load BASIC on the PC and run the program. Load 720 dpi paper into the printer. Then the main menu appears, as shown below:
EPSON STYLUS COLOR 500 Adjustment Program Customer data <> **/**/** ( Customer data input ) .... 1 ( Adjustment/Print Inspection ) .... 2 ( END Select Menu :? s ) .... E
3.
Choose 1 first. The Destination setting menu appears on the display.
Factory Setting (1st : Program Ver. 0 : Standard 1 : Japan ) (2nd : Market 0 : Standard 1 : NLSP ) (3rd : C.G. Table 0 : Italic U.S.A 1 : PC437 2 : PC866) Memory-SW data (3 col data) :? s 4. 5. Refer to Table 4-2 to input a 3-digit number for the destination. (For example, USA: 000). Then the main menu appears again. Choose 2 to enter the adjustment mode. The adjustment select menu appears as shown: EPSON STYLUS COLOR 500 Adjustment Program Rev. x Customer : Customer data 0. Initial Ink Charge 1. Head Voltage Values 2. Angular Head Adjustment 3. Bi-D Adjustment 4. Head Liner Adjustment 5. Head-GAP Timing Adjustment 6. Head Data Indication 9. Customer data charge / END
Select Menu ? s
Rev.B
4-5
Adjustment
6.
EPSON Stylus COLOR 500 Service Manual
Press 1 to begin writing the printhead data (head voltage values). The display for entering the head voltage values appears. Refer to the printhead circuit boards to enter the appropriate values. (See the illustration below.)
Nozzles ID4 ID3 L R ID1 ID2 Color Head Drive Voltage Indication
The Rank of Holding Time 2 Head Drive Voltage (VH1) Standard Head Voltage (VH2) Serial Number
Black Head
Color Head
Figure 4-1. Printhead Voltage Values
CAUTION
u If the value of VH2 is the same as VH1, HV2 is abbreviated. So, input the value of HV1 as VH2. u Color printhead data consists of 4 bits of binary data (for example, 0110) taken from the dots labeled ID4 to ID1. Input the values from ID4 to ID1 continuously. u The value of the ID is 1 when the dot corresponding to that ID is painted black; otherwise, when the dot is not black, the value is 0.
<<<< Head Voltage Value Setting >>>> Black Head VH value setting Head Rank : s Black VH1 : s Black VH2 : s Color Head VH (4 bit data only!!)
7.
Press Return to exit the setting mode, or press Space to continue with adjustments.
CAUTION
Because the values you have set are not stored in EEPROM until the printer is turned off, turn off the printer immediately after completing the adjustments. 8. Turn off the printer.
4-6
Rev.B
EPSON Stylus COLOR 500 Service Manual
Adjustment
4.1.2.2 Head Data Indication
Selecting this function, this printer prints out the printhead data in EEPROM on the main board. When the main board is alive, this function is useful to know the printhead data without removing the printheads. As the printed data are descried by Hexa-decimal digits, get the printhead data referring to later translation tables. 1. 2. Connect a PC to the target printer using a parallel interface cable and turn the printer on. Load BASIC on the PC and run the program. Load 720 dpi paper into the printer. Then the main menu appears, as shown below:
EPSON STYLUS COLOR 500 Adjustment Program Customer data <> **/**/** ( Customer data input ) .... 1 ( Adjustment/Print Inspection ) .... 2 ( END Select Menu :? s ) .... E
3.
Choose 1 first. The Destination setting menu appears on the display.
Factory Setting (1st : Program Ver. 0 : Standard 1 : Japan ) (2nd : Market 0 : Standard 1 : NLSP ) (3rd : C.G. Table 0 : Italic U.S.A 1 : PC437 2 : PC866) Memory-SW data (3 col data) :? s 4. 5. Refer to Table 4-2 to input a 3-digit number for the destination. (For example, USA: 000). Then the main menu appears again. Choose 2 to enter the adjustment mode. The adjustment select menu appears as shown: EPSON STYLUS COLOR 500 Adjustment Program Rev. x Customer : Customer data 0. Initial Ink Charge 1. Head Voltage Values 2. Angular Head Adjustment 3. Bi-D Adjustment 4. Head Liner Adjustment 5. Head-GAP Timing Adjustment 6. Head Data Indication 9. Customer data charge / END
Select Menu ? s
Rev.B
4-7
Adjustment
6.
EPSON Stylus COLOR 500 Service Manual
Press 6 to choose the head data indication function. The printer prints out head data as followings, and the adjustment select menu appears again. For example Printed data is as followings; Rev. X <***> VH:04232001 Referring to later translation tables, Rev. X means the revision of the adjustment program. <***> means the customer data. (Refer to Section 4.1.1.) "04" means that the head rank is 2. (Refer to Table 4-3.) "23" means that the head drive voltage (VH1) is 26.52 (V). (Refer to Table 4-4.) "20" means that the standard head voltage (VH2) is 27.40 (V). (Refer to Table 4-4.) "01" means that the color head drive voltage is "0001". (Refer to Table 4-5.)
Note
If the main board is inactive, there is no way without removing the printhead once to know head data.
Table 4-3. Head Rank
Indication 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E Rank 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Indication 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E Rank 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
4-8
Rev.B
EPSON Stylus COLOR 500 Service Manual
Adjustment
Table 4-4. Black VH1 / VH2
Indication 3F 3E 3D 3C 3B 3A 39 38 37 36 35 34 33 32 31 30 2F 2E 2D 2C 2B 2A 29 28 27 26 25 24 23 22 21 20 Head Voltage 18.27 18.57 18.86 19.16 19.45 19.74 20.04 20.33 20.63 20.92 21.22 21.51 21.81 22.10 22.40 22.69 22.98 23.28 23.57 23.87 24.16 24.46 24.75 25.05 25.34 25.63 26.93 26.22 26.52 26.81 27.11 27.40 Indication 1F 1E 1D 1C 1B 1A 19 18 17 16 15 14 13 12 11 10 0F 0E 0D 0C 0B 0A 09 08 07 06 05 04 03 02 01 00 Head Voltage 27.70 27.99 28.28 28.58 28.87 29.17 29.46 29.76 30.05 30.35 30.64 30.94 31.23 31.52 31.82 32.11 32.41 32.70 33.00 33.29 33.59 33.88 34.17 34.47 34.76 35.06 35.35 35.65 35.94 36.24 36.53 36.83
Rev.B
4-9
Adjustment
EPSON Stylus COLOR 500 Service Manual
Table 4-5. Color Head Drive Voltage
Indication F9 FA FB FC FD FE FF 00 01 02 03 04 05 06 07 ID 4 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 ID 3 0 0 0 0 1 1 1 0 0 0 0 1 1 1 1 ID 2 0 0 1 1 0 0 1 0 0 1 1 0 0 1 1 ID 1 0 1 0 1 0 1 0 0 1 0 1 0 1 0 1
4-10
Rev.B
EPSON Stylus COLOR 500 Service Manual
Maintenance
6.1 PREVENTIVE MAINTENANCE
Although this printer is designed so that no specific maintenance is required on a regular basis, it is recommended that you clean the printer thoroughly whenever you get a chance to do so. You can clean: u Outer case Use a soft, clean cloth, dampened with mild detergent, if necessary. u Auto sheet feeder If the inside of the auto sheet feeder is dirty (dusty), carefully brush away all dust and dirt using a soft brush. If the pickup roller of the sheet feeder is dirty, clean its surface with a soft, clean cloth. u Inside the printer If you notice any dust or dirt that has accumulated inside the printer when you open the outer case for repair, remove all dust and dirt using a small vacuum cleaner designed for such purposes. u Never use paint thinner, trichloroethylene, or ketone-based solvents for cleaning. These chemicals can damage the components of the printer.
WARNING
CAUTION
u Do not use a hard or abrasive brush for cleaning. u Be careful not to damage the components of the printer when using a vacuum cleaner. u A lithium battery is installed on the C161 MAIN board of this printer. Be sure to observe the following instructions when servicing the printer or storing the after-service parts: 1. Keep the battery away from any metal or other batteries so that electrodes of opposite polarity do not come in contact with each other. 2. Do not heat the battery or place it near fire. 3. Do not solder on any part of the battery. (Doing so may result in leakage of electrolyte from the battery, burning, or explosion. The leakage may damage devices close to the battery.) 4. Do not charge the battery. (An explosive gas may be generated inside the battery, and cause burning or explosion.) 5. Do not dismantle the battery. (The gas inside the battery may hurt your throat. Leakage, burning, or explosion may also result.) 6. Do not install the battery in the wrong direction. (This may cause burning or explosion.)
Rev.A
6-1
Maintenance
EPSON Stylus COLOR 500 Service Manual
6.2 SERVICE MAINTENANCE
Certain maintenance is required when the printer detects an error or when you observe a decline in print quality.
6.2.1 Printhead Cleaning
If print quality deteriorates, clean the printhead using the built-in printhead cleaning function. The printer also has an automatic printhead cleaning cycle to ensure the proper nozzle operation for ink ejection as well as to preserve its best condition. Therefore, to avoid wasting ink, perform this printhead cleaning operation only if print quality declines. 1. 2. Press the Cleaning q button for black head cleaning and press the Cleaning qqq button for color head cleaning. After printhead cleaning, the printer returns into previous condition automatically.
CAUTION
The printhead cleaning operation is usually performed in waiting condition. And this function is able to performed in printing condition too. But we recommend to perform it in waiting condition to prevent from the irregular paper feeding.
6-2
Rev.A
EPSON Stylus COLOR 500 Service Manual
Maintenance
6.3 LUBRICATION AND ADHESIVEs
The printer must be lubricated properly when the printer 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. Figure 6-1 shows the lubrication points and adhesive points.
Table 6-1. Recommended Lubricants
Type Oil Grease Adhesive Name O-8 G-20 G-26 NEJI LOCK #2 (G) Quality 40 cc 40 gm 40 gm 1000 g Part No. 1019753 B702000001 B702600001 B730200200 Availability E E E E
Note:
E = EPSON Exclusive product (Not commercially available)
Table 6-2. Lubrication and Adhesive Points
Ref. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 (1) (2) Lubrication/Adhesive Point The contact point of the right pulley assembly shaft with spur gear 28.5 and spur gear 15. The sliding surface of the gear guide shaft with spur gear 12.9 The surface of the spur gear guide shaft The contact point of the right frame shaft with spur gear 80/40 The contact point of the PF roller assembly compression spring with the plain washer The right and left surfaces of the PF drive roller assembly under the lower paper guide assembly The contact point of the eject roller ground plate with the lower paper guide Carriage unit oil pad The surface of the CR guide shaft The both sides of the CR guide shaft The contact point of PG transmission lever with PG lever The surface of PG lever where it contacts the base frame The sliding surface of the base frame with carriage unit The point of shaft #4 in the right frame The surface of spur gear 22.4 where it contacts the release cam The contact point of the PF roller assembly with the grounding spring From the color head angle adjust lever to the cartridge unit From the black head angle adjust lever to the cartridge unit Lubricant G-26 (3-5 mg) O - 8 (1/2 turn of teeth surface) G-26 (3-5 mg) G-26 (3-5 mg) G-26 (3-5 mg) G-26 (3-5 mg) G-26 (3-5 mg) O-8 (0.3 ml) O-8 (unify and thin) G-20 (3-5 mg) G-26 (1-3 mg) G-26 (3-5 mg) G-26 (3-5 mg) G-26 (3-5 mg) G-26 (3-5 mg) G-26 (3-5 mg) NEJI LOCK #2 (1-3 mg) NEJI LOCK #2 (1-3 mg)
CAUTION
u Do not apply too much lubricant, as it may stain the mechanism or cause it to malfunction.
Rev.A
6-3
Maintenance
EPSON Stylus COLOR 500 Service Manual
1
2
3
4
5
16
8 7
6 6
Carriage Unit 9
M/B Shield Plate
10
11
PG Lever 12
Base Frame
Figure 6-1. Lubrication Points and Adhesive Points (1)
6-4 Rev.A
EPSON Stylus COLOR 500 Service Manual
Maintenance
Carriage Unit 13
14 Base Frame
13 15
(2)
(1)
Figure 6-2. Lubrication Points and Adhesive Points (2)
Rev.A
6-5
EPSON Stylus COLOR 500 Service Manual
Appendix
A.1 CONNECTOR SUMMARY
The figure below shows the interconnection between the major components of the EPSON Stylus COLOR 500.
AC Input
CN1
C160 PSB/PSE
Carriage Unit CN2
CN10 Parallel I/F
CN1
Black
CN8
CN
Color
CN9
CN
Serial I/F
CN2
C161 MAIN (C198 MAIN)
CN5
HP Sensor
CN4
PE Sensor
CN11 CN7
PS Sensor
PF Motor CR Motor
CN6 CN3
C161 PNL
Printer Mechanism
Figure A-1. Interconnection of Main Components
Rev.B
A-1
Rev.B
T1 PT-63 2 C15 2200P/1.2KV FMB-G19L Q1 K2182 3 L51 PI10-471K D55 11EQS06 C54 470U 6.3V C82 2.2U 50V C51 2200U/50V 1 2 3 4 5 6 7 R58 15K 4.3K R63 C58 2200P C81 0.033U 4 IC51 L4962E 11 D51 +42V/0.5A CN2 1 2 3 4 5 GND +5V/0.5A GND +42V R18 240K/0.5W C13 5 ZD86 HZS5C-3 R56 150 10 9 C12 25V/100U D52 AG01Z R57 150 Q82 DTC124ES R54 10K R55 15K C55 0.1U/50V C56 33U/35V D81 GMB01 Q81 DTA124ES R70 1.2K ZD52 HZS24-1 ZD87 HZS24-1 R68 3K R69 100 R81 750 FG D1 11EQS06 0.01U 390/0.5W R11 ZD51 HZS5C-3 ZD81 HZS6C-3 ZD82 HZS5C-3 ZD83 HZS6C-3 ZD84 HZS5C-3 ZD85 HZS6C-3 Q2 Q3 C4408 R15 2PA1015Y 510 R13 R16 4.7K 270 R14 510 IC1 TL431 3 1 2 6 R21 10K D4 AG01A PC2 4 2 5 1 R25 6 TLP541G 27K C18 0.01U 3K R20 8 ZD53 HZS6B-1 PC1 3 2 4 1 TLP521-1GB
C8 1000P
3
C11 220U/200V
1
2
FG
4 DB1 S1VBA60
R12 0.91/2W
C14
SW1
D2
4700P
11EQS04 R19
20K
R2 3.9/5W
C3
C4
EPSON Stylus COLOR 500 Service Manual
2200P
2200P
FG
2
4
L1
1
3
HF2022-103Y0R7
C1
0.1U
R1
1M/0.5W
R26
Figure A-4. C160 PSB Board Circuit Diagram
F1 2.5A/125V or 250V
100K/0.5W
L
CN1 12 N
100-120VAC
Appendix
A-7
A-8
T1 PT-64 1 11 FMB-G19L 2 Q1 K1603 3 L51 PI10-471K D55 11EQS06 R58 15K C82 2.2U 50V C54 470U 6.3V C81 0.033U C58 2200P 4.3K R63 C51 2200U/50V 1 2 3 4 5 6 7 4 IC51 L4962E 1 2 3 4 5 D51 CN2 +42V/0.5A GND +5V/0.5A GND +42V R18 300K/0.5W C13 5 ZD86 HZS5C-3 R56 150 10 9 C55 0.1U/50V R55 15K R54 10K R70 1.2K C56 33U/35V D81 GMB01 Q81 DTA124ES ZD52 HZS24-1 Q82 DTC124ES ZD87 HZS24-1 R69 100 FG 4700P 1.1K R11 R28 300K/0.5W ZD51 HZS5C-3 ZD81 HZS6C-3 ZD82 HZS5C-3 ZD83 HZS6C-3 ZD84 HZS5C-3 ZD85 HZS6C-3 8 AG01Z R57 150 D1 Q2 11EQS06 Q3 C4408 R15 2PA1015Y 510 R13 R16 4.7K 270 C12 R14 510 25V/100U IC1 TL431 1 3 2 6 D52 R21 10K D4 AG01A R68 3K PC2 4 2 5 1 R25 6 TLP747JF(D4) 27K C18 0.01U 3K R20 PC1 3 2 4 1 TLP721F(D4-GB) ZD53 HZS6B-1 R81 750
Appendix
C8 1000P 1 FG
3
C11 56U/400V 2
C15 1000P/1.5KV
4 DB1 S1VBA60
R12 2/1W
C14
D2
2200P
SW1
R2 10/5W
11EQS04 R19
20K
C3
C4
2200P
2200P
FG
C2
0.1U
2
4
L1
1 3 HF2022-253Y0R4
C1
0.22U
R1
1M/0.5W
Figure A-5. C160 PSE Board Circuit Diagram
F1 T1.25AH/250V
R27
R26
100K/0.5W
100K/0.5W
L
CN1 12 N
220-240VAC
EPSON Stylus COLOR 500 Service Manual
Rev.A
Rev.B
T1 PT-64 1 FMB-G19L 2 Q1 K1603 3 ZD1 RD120E C13 R11 5 ZD86 HZS5C-3 C81 0.033U R56 150 10 9 C55 0.1U/50V R55 15K R54 10K R70 1.2K C56 33U/35V D81 GMB01 Q81 DTA124ES ZD52 HZS24-1 Q82 DTC124ES R68 3K ZD87 HZS24-1 R69 100 FG 1.1K C58 2200P 4700P R58 15K 4.3K R63 4 C82 2.2U 50V D55 11EQS06 C54 470U 6.3V C51 2200U/50V 1 2 3 4 5 6 7 IC51 L4962E L51 PI10-471K 11 D51 +42V/0.5A CN2 1 2 3 4 5 GND +5V/0.5A GND +42V R18 390K/0.5W ZD51 HZS5C-3 ZD81 HZS6C-3 ZD82 HZS5C-3 ZD83 HZS6C-3 ZD84 HZS5C-3 ZD85 HZS6C-3 8 AG01Z R57 150 D1 Q2 11EQS06 Q3 C4408 R15 2PA1015Y 510 R13 R16 4.7K 270 C12 R14 510 25V/100U IC1 TL431 1 3 2 6 D52 R21 10K 3K R20 PC1 3 2 4 1 TLP721F(GB) ZD53 HZS6B-1 R81 750 PC2 4 2 5 1 R25 6 TLP747JF 27K C18 0.01U
C8 1000P 1 FG
3
C11 56U/400V 2
C15 1000P/1.5KV
4 DB1 S1VBA60
R12 2/1W
C14
D2
2200P
SW1
R2 10/5W
11EQS04 R19
13K
C3
C4
2200P
2200P
EPSON Stylus COLOR 500 Service Manual
FG
C2
0.1U
2
4
L1
1 3 HF2022-253Y0R4
C1
0.22U
D4 AG01A
R1
R32
1M/0.5W
F1 T1.25AH/250V
390K/0.5W R27 R26
100K/0.5W
100K/0.5W
Figure A-6. C160 PSE (Korean) Board Circuit Diagram
L
CN1 12 N
220VAC
Appendix
A-9
Appendix
EPSON Stylus COLOR 500 Service Manual
+5 V 20
+5 V
5 +5 V 3 LED11 1 LED10 7 LED9 9 LED8 14 LED7 LED6 16 18 LED5 LED5 15 LED6 LED7 LED8 11 LED2 19 LED1 17 LED0 LED9 LED10 LED11 LED0 LED1 LED2 LED3 LED4 GREEN N O T MO U N TE D
NOT MOUN TED
N O T MO U N TE D N O T MO U N TE D RED RED RED N O T MO U N TE D N O T MO U N TE D N O T MO U N TE D N O T MO U N TE D
CN1
LED4 13 LED3
SW0 SW1 SW2
NOT MOUN TED
N O T MO U N TE D MOUNTED MOUNTED MOUNTED
8 SW4 6 SW3 4 SW2 SW1 2 10 SW0 12 GND
SW3 SW4
Figure A-7. C161 PNL Board Circuit Diagram
A-10
Rev.A
EPSON Stylus COLOR 500 Service Manual
Appendix
A.3 EXPLODED DIAGRAMS
433
156 .2
233.5
Units : mm
Figure A-8. EPSON Stylus COLOR 500 Outline Drawing
Rev.B
A-11