This manualdescribes functions, theory of electrical and mechanical operations, maintenance, and repair of Stylus
1500.
The instructions and procedures included herein are intended for the experience repair technician, and attention
should be given to the precautions on the preceding page. The chapters are organized as follows:
CHAPTER 1. GENERAL DESCRIPTION
Provides a general product overview, lists specifications, and illustrates the main components of the printer.
CHAPTER 2. OPERATING PRINCIPLES
Describes the theory of printer operation.
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
Includes a step-by-step guide for product disassembly and assembly.
CHAPTER 4. ADJUSTMENTS
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.
Multilingual messages (five languages), selected using the control panel
No DIP switches
o
Four scalable fonts, five LQ fonts, and one draft font installed
Scalable fonts:Roman T, Sans Serif H, Roman, Sans Serif
LQ bitmap fonts:Roman, Sans Serif, Courier, Prestige, Script
Parallel interface cable
(from D-SUB 25-pin to Amphenol 57)
interface card
C836031 / C836061
C836051 / C836061
S020062Monochrome ink cartridge
S020049Color ink cartridge
S041059Exclusive paper (360 dpi) A4
S041060Exclusive paper (360 dpi) Letter
S041065Exclusive paper (360 dpi) A3
S041066Exclusive paper (360 dpi) Super A3 / B
S041077Exclusive paper (360 dpi) A2
S041066Exclusive paper (720 dpi) A4
S041062Exclusive paper (720 dpi) Letter
S041067Exclusive paper (720 dpi) Legal
S041068Exclusive paper (720 dpi) A3
S041069Exclusive paper (720 dpi) Super A3 / B
S041070Exclusive paper (720 dpi) B
S041076Exclusive paper (720 dpi) A2
S041071High quality glossy paper A4
S041072High quality glossy paper Letter
S041073High quality glossy paper A3
S041074High quality glossy paper Super A3 / B
S041075High quality glossy paper B
S041063TransparencyA4
S041064TransparencyLetter
S041054Super coated index card for 720 dpi A6
Serial interface cable
(from D-SUB 25-pin to D-SUB 25-pin)
Serial interface cable
(from D-SUB 9-pin to D-SUB 25-pin)
* :The asterisk mean substitute for the last digit, which varies by each destinations.
1-2Rev. A
Stylus 1500 Service ManualGeneral Description
1.2 SPECIFICATIONS
This section provides detailed information about the Stylus 1500.
Scalable fonts:EPSON Roman10.5 pt., 8 pt. - 32 pt. (in units of 2 pt.)
EPSON Sans Serif10.5 pt., 8 pt. - 32 pt. (in units of 2 pt.)
EPSON Roman T 10.5 pt., 8 pt. - 32 pt. (in units of 2 pt.)
EPSON Sans Serif H 10.5 pt., 8 pt. - 32 pt. (in units of 2 pt.)
Note:Each typeface has four variations (normal, bold, italic, and bold italic).
Table 1-3. Character Tables and Fonts
Standard
Version
NLSP
Version
Character Tables
Italic
PC437 (U.S., Standard Europe)
PC850 (Multilingual)
PC860 (Portuguese)
PC861 (Icelandic)
PC863 (Canadian-French)
PC865 (Nordic)
BRASCII
Abicomp
Roman 8
ISO Latin 1
Italic
PC437 (U.S., Standard Europe)
PC437 (Greek)
PC850 (Multilingual)
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
Roman 8
PC774
Estonia
ISO Latin 1
ISO Latin 2
PC866 LAT
Bitmap
Fonts
EPSON
Roman
EPSON
Sans Serif
EPSON
Courier
EPSON
Prestige
EPSON
Script
SupportedSupportedSupported
SupportedSupported
Scalable Fonts
EPSON
Roman
EPSON
Sans Serif
EPSON
Roman T
EPSON
Sans Serif H
None
supported
1-4Rev. A
Stylus 1500 Service ManualGeneral Description
1.2.2 Paper Feeding
Feeding method:Friction feed with built-in auto sheet feeder (ASF)
and push tractor feed
Note :Reverse feeding beyond 9.5 mm (0.38") is not allowed.
Line spacing:1/6 inch, 1/8 inch, or programmable in units of 1/360 inch
Paper path:Cut sheet front entry / front exit by ASF
Single sheet rear entry / front exit and continuous paper rear
entry / front exit
Feeding speed:71 ms (1/6 inch)
3 inches/second (continuous feeding)
1.2.3 Input Data Buffer
Capacity:256 KB
1.2.4 Electrical Specifications
120 V Version
Rated voltage:120 VAC
Input voltage range:103.5 - 132 VAC
Rated frequency range:50 - 60 Hz
Input frequency range:49.5 - 60.5 Hz
Rated current:0.7 A
Power consumption:Approximately 23 W (self-test with 10-cpi LQ characters)
Insulation resistance:
Dielectric strength:1000 VAC RMS - 1 minute or 1200 VAC RMS - 1 second
10 MΩ minimum (500 VDC between AC line and chassis)
(between AC line and chassis)
220 V Version
Rated voltage:220 - 240 VAC
Input voltage range:198 - 264 VAC
Rated frequency range:50 - 60 Hz
Input frequency range:49.5 - 60.5 Hz
Rated current:0.4 A
Power consumption:Approximately 20 W (self-test with 10-cpi LQ characters)
Insulation resistance:
Dielectric strength:1000 VAC RMS - 1 minute or 1200 VAC RMS - 1 second
10 MΩ minimum (500 VDC between AC line and chassis)
(between AC line and chassis)
Rev. A1-5
Humidity
(% RH)
˚C
(˚F)
80%
55%
20%
10˚C
(50˚F)
27˚C
(80˚F)
35˚C
(95˚F)
Guaranteed Range
General DescriptionStylus 1500 Service Manual
1.2.5 Environmental Conditions
Temperature:
Operating:10 to 35° C
Non-operating:–20 to 40° C
*1
Non-operating:
–20 to 60° C
1 month at 40° C
120 hours at 60° C
Humidity:Operating:
Non-operating:
*2
*1, *2
20 to 80% RH
5 to 80% RH
Resistance to shock:Operating:1G, within 1 ms
Non-operating:
*1
2 G, within 2 ms
Resistance to vibration:Operating:0.15 G
Non-operating:
*1
0.50 G
Notes:*1 In shipment container.*2 Without condensation.
Figure 1-3. Environmental Conditions
1.2.6 Reliability
Total print volume:75,000 pages (letter or A4)
Printhead life:1,000 million dots/nozzle
1.2.7 Safety Approvals
120 V Version
Safety standards:UL 1950 with D3
CSA 22.2 950 with D3
EMC:FCC part 15 subpart B class B
220 - 240 V Version
Safety standards:EN 60950 (TÜV, SEMKO, DEMKO, NEMKO, FIMKO)
EMC:EN 55022 (CISPR Pub. 22) class B
EN 50082-1
1-6Rev. A
Stylus 1500 Service ManualGeneral Description
1.2.8 CE Marking
220 - 240 V Version
Lower Voltage Directive 73/23/EEC:EN60950
EMC Directive 89/336/EEC:EN55022 Class B
EN50082-1
IEC801-2
IEC801-3
IEC801-4
1.2.9 Acoustic Noise
Noise level:Approximately 45 dB(A) (according to ISO 7779)
Rev. A1-7
General DescriptionStylus 1500 Service Manual
1.3 INTERFACES
1.3.1 Hardware Interfaces
This section describes the Stylus 1500 interfaces. The printer is standard-equipped with a parallel interface.
1.3.1.1 Parallel Interface
Forward Channel
Transmission mode:8 bit parallel, IEEE-P1284 compatibility mode
Synchronization:
Handshaking:BUSY and
Signal level:TTL-compatible level (IEEE-P1284 Level 1 device)
Adaptable connector:57-30360 (Amphenol or equivalent)
STROBE pulse
ACKNLG signal
The BUSY signal is set 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:
o During data entry (See Figure 1-4 below.)
o When the input data buffer is full.
o When the
o During a printer error condition (See the
INIT signal is LOW or during hardware initialization.
ERROR signal description below.)
o During self-test printing.
o In default setting mode.
o When the parallel interface is not selected.
ERROR signal is LOW when the printer is in one of the following conditions:
The
o Printer hardware error (fatal error).
o Paper-out error.
o Release lever operation error.
The PE signal is HIGH during a paper-out error.
DATA
DATA (n)
DATA (n+1)
STROBE
500 ns (min.)500 ns (min.)
BUSY
ACKNLG
* : 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.
500 ns (min.)
0 (min.) 500 ns (max.)
0 (min.)
0 (min.)
500 ns ~10 µs
Figure 1-4. Data Transmission Timing
1-8Rev. A
Stylus 1500 Service ManualGeneral Description
Table 1-4 shows the connector pin assignments and signals for the forward channel of the parallel interface.
Table 1-5 shows this information for the reverse channel.
Table 1-4. Connector Pin Assignments and Signals (Forward Channel)
Pin No.Signal Name
1
2 - 9DATA 0 - 720 - 27
10
11BUSY29
12PE28O
13SLCT28O
14
15NC——Not connected.
31
STROBE19I
ACKNLG28
AFXT30I
INIT30I
Return
GND Pin
I/ODescription
Reading of data is performed at the falling
edge of this pulse.
Signals DATA0 - DATA7 represent data bits 0
to 7, respectively. Each signal is HIGH when
I
the data is logical 1 and LOW when the data is
logical 0.
This signal is a negative pulse indicating that
O
the printer can accept more data.
When this signal is HIGH, the printer cannot
O
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.
The falling edge of a negative pulse or a LOW
signal on this line causes the printer to
initialize. A 50 µs (minimum) pulse is
necessary.
When this signal is LOW, the printer detects an
32
36
18Logic H—O
35+5 V—
17Chassis GND—
16, 33
19 - 30
15, 34NC—
ERROR29
SLIN30INot used.
GND—
O
error.
Pulled up to +5 V via a 3.9 KΩ resistor.
O
Pulled up to +5 V via a 3.3 KΩ resistor.
—
Chassis ground.
—
Signal ground.
—
Not used.
Note:The I/O column indicates the direction of the signal as viewed from the printer.
Rev. A1-9
General DescriptionStylus 1500 Service Manual
Reverse Channel
Transmission mode:IEEE-P1284 nibble mode
Adaptable connector:See the Forward Channel section earlier in this manual.
Synchronization:Refer to the IEEE-P1284 specification.
Handshaking:Refer to the IEEE-P1284 specification.
Data transmission timing:Refer to the IEEE-P1284 specification.
Signal level:Refer to the IEEE-P1284 specification.
Extensibility request:The printer responds affirmatively when the extensibility request
values are 00H or 04H, as follows:
00H:Request nibble mode reverse channel transfer
04H:Request device ID
Return data using nibble mode channel transfer
Device ID:The printer sends following device ID string when requested:
Signals DATA0 - DATA7 represent data
bits 0 to 7, respectively. Each signal is
HIGH when the data is logical 1 and LOW
when the data is logical 0. These signals
are used to transfer the extensibility request
values (described in IEEE-P1284) to the
printer.
Printer busy signal and reverse channel
transfer data bit 3 or 7.
Acknowledge data request signal and
reverse channel transfer data bit 2 or 6.
X-flag signal and reverse channel transfer
data bit 1 or 5.
Data available and reverse channel transfer
data bit 0 or 4.
Pulled up to +5 V via a 3.9 KΩ resistor.
Pulled up to +5 V via a 3.3 KΩ resistor.
Note:The I / O column indicates the direction of the signal as viewed from the printer.
1.3.1.2 Optional Interface
The Stylus 1500 supports an optional Type-B interface with the following characteristics:
Reply Message:ESC/P2 is selected:
This section describes the controls, settings, and adjustments used to operate the Stylus 1500.
1.4.1 Control Panel
The control panel for this printer is in the center of the upper case. The panel has 1 lock-type and 6
non-lock-type pushbuttons, and 10 LED indicators for easy operation of the various print functions.
Figure 1-5. Control Panel Appearance
1.4.1.1 Buttons
Power
This button turns the printer on or off.
ATTENTION
The power button controls the secondary power supply circuit. Therefore, the primary circuit is
hot after power off. Do not connect the interface cable even if the printer power is off while the
AC inlet is connected. Otherwise, the circuit board or interface may be damaged.
Pause
This button alternates between printing and non-printing states when there is data in the print buffer. In the
pause state, printing stops but communication with the I/F does not stop. Therefore, even in the pause state,
the printer receives data from the host until the input data buffer is full.
o
Pressing the Pause button while holding down the Alt button resets the printer.
Alt
This button is usually used with another button.
o Holding down Alt for 3 seconds moves the printer carriage to the ink cartridge
installation position. Pressing Alt again returns the carriage to the home position.
LF/FF
This button feeds one line or a page.
o Pressing LF/FF while holding down Alt starts the black printhead cleaning cycle.
Economy/Condensed
This button selects economy or condensed printing mode.
Rev. A1-13
General DescriptionStylus 1500 Service Manual
Font
This button selects the desired font.
o
Pressing Font while holding down Alt starts the color printhead cleaning
cycle.
Load/Eject
This button loads and ejects the paper.
1.4.1.2 Indicators
Operate (green)
Lights when the printer power is on.
Data (orange)
o
Lights when there is data in the print buffer.
o
Blinks with the Pause LED when an error occurs.
Black Ink Out (red)
Lights when there is no ink in the black ink cartridge, and blinks when the cartridge is low.
Color Ink Out (red)
Lights when there is no ink in the color ink cartridge, and blinks when the cartridge is low.
Paper Out (red)
Lights when the printer is out of paper, and blinks when a paper jam occurs.
Pause (orange)
Lights when printing is paused.
Economy (green)
Lights when economy printing mode is selected.
Condensed (green)
Lights when condensed printing mode is selected.
Font (green)
Shows the selected font.
1-14Rev. A
Stylus 1500 Service ManualGeneral Description
1.4.2 Panel Functions at Power On
The table below describes the functions performed when the indicated buttons are held down while turning on
the printer.
Note:“—” means that the indicated printer status does not affect the LED.
1.4.4 Default Settings
This printer has user-selectable default settings to which it refers at initialization. The default settings (and
factory settings ) are listed in Table 1-8.
1-16Rev. A
END
Change the settings?
YES
NO
Change setting menu:
Alt
button
Change setting value:
Pause
button
Turn printer power off to save settings to the EEPROM.on the main board
START
Hold down the Economy /Condensed
button, a nd tu rn on the print er.
The printer prints:
1. Firmware version,
Protec t co unte r va lue A/C.
2. How to set defaults.
3. Current settings.
Stylus 1500 Service ManualGeneral Description
1.4.4.1 Setting Method
The method of setting defaults is shown in the flowchart below.
ATTENTION
n Any default value specified is not stored in the EEPROM until the printer is turned off.
n The last default value specified before power-off is stored in the EEPROM.
Figure 1-6. Default Setting Flowchart
Rev. A1-17
General DescriptionStylus 1500 Service Manual
1.4.4.2 Setting Menus
The default setting menus are described in the table below.
Table 1-8. Default Settings
Menus
Print direction
Font
Pitch
*1
Auto / Bi-D / Uni-D
Draft / Roman / Sans Serif /
Sans Serif H
10 cpi / 12 cpi / 15 cpi / 17.1 cpi / 20 cpi / Proportional
(underlines indicate factory default settings)
I/F modeAuto / Parallel / Serial
Auto I/F wait mode10 seconds / 30 seconds
Software
Auto CR
(IBM mode only)
AGM
(IBM mode only)
Character tables
(standard version)
ESC/P2 / IBM X24E
Off
On /
Off
On /
ItalicPC 437PC 850PC 860PC 863PC 865
PC 861 BRASCIIAbicompRoman 8ISO Latin 1
ItalicPC 437PC 437 GreekPC 850PC 853
Character tables
(NLSP version)
PC 855PC 852PC 857PC 866PC 869
MAZOWIA Code MJKISO 8859-7ISO Latin 1TBulgaria
Roman 8PC774EstoniaISO Latin 1ISO Latin 2
PC866 LAT
Off: Used in standalone environment
On: Used in network environment
0 / 0 with slash
11 inch 12 inch8.5 inch 70/6 inch Other
Off
On /
On / Off
Plain paper (pure black) / Plain paper (composite black) /
Exclusive paper / Transparency
On /
Off
Notes:*1. Refer to Tables 1-9 and 1-10.
*2. This is selected when a value other than 11, 12, 8.5, or 70/6 inches has been placed
in EEPROM by the ESC | command.
*3. This mode is provided only for DOS users and is selected according to paper type.
Pure black and composite black are selected according to the printed result.
*2
1-18Rev. A
Stylus 1500 Service ManualGeneral Description
Table 1-9. Print Direction Mode Characteristics
ItemMonochrome PrintingColor Printing
• Throughput is better.
AutoThroughput and quality is better.
Bi-D
• Throughput is best.
• Print quality may be down.
• Color quality with special paper is
worse. (Color correction depends
on the printing direction.)
• Throughput is better.
• Color quality with special paper is
worse. (Color correction depends
on the printing direction.)
Uni-D
• Throughput is worse.
• Print quality is better.
• Throughput is worse.
• Color quality is best.
Table 1-10. Printing Direction and ESC U Command
Default Setting
Mode
Character mode
(for DOS)
Raster graphics
mode
(for Windows)
ESC U0ESC U
Auto
Bi-DUni-DAutoBi-DUni-DBi-DBi-DUni-DUni-D
Note:Printing direction is controlled by a driver in the Windows environment.
AutoBi-DUni-D
None
1
AutoAutoBi-DUni-DBi-DUni-DUni-DUni-D
ESC U0ESC U
1
None
ESC U0ESC U
None
1
Rev. A1-19
General DescriptionStylus 1500 Service Manual
1.4.5 Printer Adjustment Mode
The Stylus 1500 allows the user to adjust the printing direction and head gap without a special program. The
following list shows the adjustments for this printer in order:
Pattern 1Uni-D adjustment at 400 cps
Pattern 2Bi-D adjustment at 100 cps
Pattern 3Bi-D adjustment at 200 cps
Pattern 4Bi-D adjustment at 400 cps
Pattern 5Head gap adjustment (for the black and color printheads in the carriage movement direction
at 100 cps)
Pattern 6Head gap adjustment (for the black and color printheads in the carriage movement direction
at 200 cps)
Pattern 7Headgap adjustment (for the black and color printheads in the paper feed direction)*
* These adjustments are performed only when the color upgrade kit is installed in the printer.
Adjustment Method
Use the following steps to perform the adjustments:
1.Hold down the Pause button while turning on the power. The printer enters adjustment mode.
“Using this mode” and the pattern 1 are printed.
*
*
2.Select the number of the most closely aligned columns by pressing the Alt button.
The black Ink Out, color Ink Out, and Paper Out LEDs show the line number currently selected. This
selection advances once each time the Alt button is pressed, and the three LEDs change their
combination of On /Off / Blinking to indicate the selection.
3.Specify the selected number by pressing the Pause button.
The selected number is set, and the next pattern is printed.
Patterns 1
Figure 1-7. Sample Adjustment Pattern
1-20Rev. A
Stylus 1500 Service ManualGeneral Description
4.Repeat steps 2 and 3 until the pattern No.4 or 7 is printed.
The adjustments are executed in the following order:
Pattern 1.Uni-D adjustment at 400 cps
Pattern 2.Bi-D adjustment at 100 cps
Pattern 3.Bi-D adjustment at 200 cps
Pattern 4.Bi-D adjustment at 400 cps
Pattern 5.
at 100 cps)
Pattern 6.
200 cps)
Pattern 7.
*
*
*
Head gap adjustment (for the black and color printheads in the carriage movement direction
Head gap adjustment (for the black and color printheads in the carriage movement direction at
Head gap adjustment (for the black and color printheads in the paper feed
direction at 360 dpi.)
* :When the optional color kit is not installed, the pattern 4 is the final pattern and the rest adjustments (pattern 5, 6 and 7)
are not executed.
ATTENTION
n Any adjustment value specified is not stored in the EEPROM untilthe printeris turned off.
n The last adjustment value specified before power-off is stored in the EEPROM..
n Before the whole adjustmentsare executed, the setting value is not stored in the printer.
5.Turn off the power to exit adjustment mode.
Rev. A1-21
General DescriptionStylus 1500 Service Manual
1.4.6 Printer Initialization
This printer has three initialization types: hardware, software, and panel.
1. Hardware Initialization
Hardware initialization is performed by turning on the printer or sending the INIT signal to the parallel interface. The following functions
are executed:
o The printer mechanism is initialized.
o The input data buffer is cleared.
o Downloaded character definitions are cleared.
o The print buffer is cleared.
o Default values are set.
2. Software Initialization
Software initialization is performed when the printer receives the ESC @ command. The following functions are executed:
o The print buffer is cleared.
o Default values are set.
Note:Thelast panel settings are kept after software initialization.
3. Panel Initialization
Panel initialization is performed by pressing the Load/Eject button while holding down the Alt button. The following functions are
executed:
o The input data buffer is cleared.
o The print buffer is cleared.
o Default values are set.
Note:
The last panel settings are kept after panel initialization.
1.4.7 Monochrome Printing Mode
This printer has a monochrome printing function that allows printing to continue with black ink when the color ink cartridge is out or the
color upgrade kit is not installed. This function is selected by the printer driver setting. To enter monochrome printing mode, turn the
Power button off and back on again.
Notes:1. Once the printer has entered this function, print data must be resent.
2. The color select command (
ESC r
)isignored.
1-22Rev. A
Stylus 1500 Service ManualGeneral Description
1.5 PAPER SPECIFICATIONS
1.5.1 Paper Type Specifications
1. Cut Sheets
Table 1-11. Cut Sheet Specifications
× 297 mm (11.7")
2
(14 lb) - 90 g/m2(24 lb)
Size
Thickness
Weight
Quality
A4:210 mm (8.3")
Letter:215.9 mm (8.5") × 279.4 mm (11.0" )
B5:182 mm (7.2") × 257 mm (10.1")
Legal:215.4 mm (8.5") × 355.6 mm (14.0")
B4:257 mm (10.1") × 364 mm (14.3")
A3:297 mm (11.7") × 420 mm (16.5")
Ledger:279.4 mm (13.0") × 431.8 mm (17.0")
A3 wide:329 mm (13.0") × 483 mm (19.0")
B3:364 mm (14.3") × 514 mm (20.2")
A2:420 mm (16.5") × 594 mm (23.4")