Epson Stylus 1500 User manual

EPSON COLOR INKJET PRINTER
Stylus 1500
SERVICE MANUAL
EPSON 4005452

REVISION SHEET
Revision Issue Data Revision Page
Rev.A October 30,1995 1st issue
-v-

PREFACE
This manual describes 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.
APPENDIX
Describes connector pin assignments, circuit diagrams, circuit board component layout and exploded diagram.
The contents of this manual are subject to change without notice.
-iv-

TABLE OF CONTENTS
CHAPTER 1. GENERAL DESCRIPTION
CHAPTER 2. OPERATING PRINCIPLES
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
CHAPTER 4. ADJUSTMENTS
CHAPTER 5. TROUBLESHOOTING
CHAPTER 6. MAINTENANCE
APPENDIX
-vi-

Chapter 1 Product Description
Table of Contents
1.1 FEATURES 1-1
1.2 SPECIFICATIONS 1-3
1.2.1 Printing Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.2.2 Paper Feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
1.2.3 Input Data Buffer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
1.2.4 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
1.2.5 Environmental Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1.2.6 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1.2.7 Safety Approvals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1.2.8 CE Marking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
1.2.9 Acoustic Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
1.3 INTERFACES 1-8
1.3.1 Hardware Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
1.3.1.1 Parallel Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
1.3.1.2 Optional Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
1.3.2 Printer Language and Control Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
1.4 OPERATIONS 1-13
1.4.1 Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
1.4.1.1 Buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
1.4.1.2 Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
1.4.2 Panel Functions at Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
1.4.3 Printer Conditions and Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
1.4.4 Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
1.4.4.1 Setting Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
1.4.4.2 Setting Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
1.4.5 Printer Adjustment Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
1.4.6 Printer Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
1.4.7 Monochrome Printing Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
1.5 PAPER SPECIFICATIONS 1-23
1.5.1 Paper Type Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
1.5.2 Printable Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
1.5.3 Adjust Lever Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29
1.6 INK CARTRIDGE SPECIFICATIONS 1-30
1.7 PHYSICAL SPECIFICATIONS 1-31
1.8 MAIN COMPONENTS 1-32
1.8.1 Main Control Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32
1.8.2 Power Supply Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32

List of Figures
Figure 1-1. Stylus 1500 Exterior View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Figure 1-2. Nozzle Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Figure 1-3. Environmental Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Figure 1-4. Data Transmission Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Figure 1-5. Control Panel Appearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Figure 1-6. Default Setting Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
Figure 1-7. Sample Adjustment Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
Figure 1-8. Printable Area for Cut Sheets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
Figure 1-9. Printable Area for Envelopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
Figure 1-10. Printable Area for Continuous Paper . . . . . . . . . . . . . . . . . . . . . . 1-28
Figure 1-11. Adjust Lever Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29
Figure 1-12. C172 MAIN Board Component Layout. . . . . . . . . . . . . . . . . . . . . 1-32
Figure 1-13. C172 PSB/PSE Board Component Layout. . . . . . . . . . . . . . . . . . 1-32
List of Tables
Table 1-1. Options and Consumables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Table 1-2. Print Speeds and Printable Columns. . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Table 1-3. Character Tables and Fonts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Table 1-4. Connector Pin Assignments and Signals (Forward Channel) . . . . . . 1-9
Table 1-5. Connector Pin Assignments and Signals (Reverse Channel) . . . . . 1-11
Table 1-6. Panel Functions at Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Table 1-7. Indicator Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
Table 1-8. Default Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
Table 1-9. Print Direction Mode Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Table 1-10. Printing Direction and ESC U Command. . . . . . . . . . . . . . . . . . . . 1-19
Table 1-11. Cut Sheet Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
Table 1-12. Transparency Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
Table 1-13. Envelope Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
Table 1-14. Index Card Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
Table 1-15. Label (Cut Sheet) Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
Table 1-16. Continuous Paper Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
Table 1-17. Label (Continuous Paper) Specifications. . . . . . . . . . . . . . . . . . . . 1-24
Table 1-18. Banner Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
Table 1-19. Minimum Margins for Different Cut Sheet Sizes . . . . . . . . . . . . . . 1-26
Table 1-20. Minimum Margins for Envelopes . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
Table 1-21. Adjust Lever Position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29

1.1 FEATURES
The Stylus 1500 is a business-use, high-speed, and high-quality color ink jet printer. The main features of this
printer are:
o High print quality for color graphics
720 dpi printing
High Speed semi 720 dpi printing
o Large capacity black ink cartridge
3 million characters (LQ mode)
o High-speed printing
LQ printing at 200 cps
Draft printing at 400 cps
o Built-in auto sheet feeder and push tractor
This holds:
Envelope to A2 size portrait
100 cut sheets, using 14 lb (55 g/m2) paper
10 envelopes
50 transparency sheets
70 sheets of special paper
o Two built-in interfaces
Bidirectional parallel I/F (IEEE-P1284 compatible)
Type-B I/F
o Easy setup
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
o Useful character tables
Standard: Italic, PC437, PC850, PC860, PC861, PC863, PC865, BRASCII,
Abicomp, Roman 8, ISO Latin 1
NLSP: Italic, PC437, PC437 Greek, PC850, PC852, PC853, PC855, PC857,
PC866, PC869, MAZOWIA, Code MJK, ISO 8859-7, ISO Latin 1T,
Bulgaria, Roman 8, PC774, Estonia, ISO Latin 1, ISO Latin 2,
PC866 LAT
Figure 1-1. Stylus 1500 Exterior View
Stylus 1500 Service Manual General Description
Rev. A 1-1

Table 1-1. Options and Consumables
Model Description
C83216* Color upgrade kit
C823071 / C823081 32 KB serial interface card
C82310* 32 KB parallel interface card
C82313* 32 KB IEEE-488 interface card
C82315* TWAIN interface card
C82312* Coax interface card
C82312* LocalTalkTM interface card
C82331* Ethernet interface card
C836021 / C836022 Parallel interface cable
(from D-SUB 25-pin to Amphenol 57)
C836031 / C836061 Serial interface cable
(from D-SUB 25-pin to D-SUB 25-pin)
C836051 / C836061 Serial interface cable
(from D-SUB 9-pin to D-SUB 25-pin)
S020062 Monochrome ink cartridge
S020049 Color ink cartridge
S041059 Exclusive paper (360 dpi) A4
S041060 Exclusive paper (360 dpi) Letter
S041065 Exclusive paper (360 dpi) A3
S041066 Exclusive paper (360 dpi) Super A3 / B
S041077 Exclusive paper (360 dpi) A2
S041066 Exclusive paper (720 dpi) A4
S041062 Exclusive paper (720 dpi) Letter
S041067 Exclusive paper (720 dpi) Legal
S041068 Exclusive paper (720 dpi) A3
S041069 Exclusive paper (720 dpi) Super A3 / B
S041070 Exclusive paper (720 dpi) B
S041076 Exclusive paper (720 dpi) A2
S041071 High quality glossy paper A4
S041072 High quality glossy paper Letter
S041073 High quality glossy paper A3
S041074 High quality glossy paper Super A3 / B
S041075 High quality glossy paper B
S041063 Transparency A4
S041064 Transparency Letter
S041054 Super coated index card for 720 dpi A6
* : The asterisk mean substitute for the last digit, which varies by each destinations.
General Description Stylus 1500 Service Manual
1-2 Rev. A

1.2 SPECIFICATIONS
This section provides detailed information about the Stylus 1500.
1.2.1 Printing Specifications
Printing method: On-demand ink jet
Nozzle configuration: Monochrome: 64 nozzles (32 x 2 staggered)
Color: 60 nozzles (20 x 3, magenta, cyan, yellow)
Printing direction: Bidirectional with logic-seeking
Table 1-2. Print Speeds and Printable Columns
Character Pitch Printable Columns LQ Speed Draft Speed
10 cpi (pica) 136 200 cps 400 cps
12 cpi (elite) 163 240 cps 480 cps
15 cpi 204 300 cps 600 cps
17 cpi (pica condensed) 233 343 cps 686 cps
20 cpi (elite condensed) 160 400 cps 800 cps
Control codes: ESC/P2 and extended raster graphics codes
EPSON remote commands
IBM XL24E emulation
Paper Feed Direction
Monochrome Magenta Cyan Yellow
0.847 mm
(12/360")
#2
#3
#1
#4
#5 #6
#7
#64
#60
#63
#59 #58
#57
#61 #62
1.129 mm
(16/360")
#2
#1
#3
#19
#20
1.129 mm
(16/360")
#2
#1
#3
#19
#20
1.129 mm
(16/360")
#2
#1
#3
#19
#20
Figure 1-2. Nozzle Configuration
Stylus 1500 Service Manual General Description
Rev. A 1-3

Fonts:
Bitmap LQ fonts: EPSON Roman 10 cpi, 12 cpi, 15 cpi, Proportional
EPSON Sans Serif 10 cpi, 12 cpi, 15 cpi, Proportional
EPSON Courier 10 cpi, 12 cpi, 15 cpi
EPSON Prestige 10 cpi, 12 cpi, 15 cpi
EPSON Script 10 cpi, 12 cpi, 15 cpi
Scalable fonts: EPSON Roman 10.5 pt., 8 pt. - 32 pt. (in units of 2 pt.)
EPSON Sans Serif 10.5 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
Character Tables
Bitmap
Fonts Scalable Fonts
EPSON
Roman
EPSON
Sans Serif
EPSON
Courier
EPSON
Prestige
EPSON
Script
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
Roman 8
ISO Latin 1
Supported Supported Supported
NLSP
Version
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
Supported Supported None
supported
General Description Stylus 1500 Service Manual
1-4 Rev. A

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: 10 MΩminimum (500 VDC between AC line and chassis)
Dielectric strength: 1000 VAC RMS - 1 minute or 1200 VAC RMS - 1 second
(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: 10 MΩminimum (500 VDC between AC line and chassis)
Dielectric strength: 1000 VAC RMS - 1 minute or 1200 VAC RMS - 1 second
(between AC line and chassis)
Stylus 1500 Service Manual General Description
Rev. A 1-5

1.2.5 Environmental Conditions
Temperature: Operating: 10 to 35°C
Non-operating: –20 to 40°C
Non-operating: *1 –20 to 60°C
1 month at 40°C
120 hours at 60°C
Humidity: Operating: *2 20 to 80% RH
Non-operating: *1, *2 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.
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
Humidity
(% RH)
˚C
(˚F)
80%
55%
20%
10˚C
(50˚F) 27˚C (80˚F) 35˚C (95˚F)
Guaranteed Range
Figure 1-3. Environmental Conditions
General Description Stylus 1500 Service Manual
1-6 Rev. A

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)
Stylus 1500 Service Manual General Description
Rev. A 1-7

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: STROBE pulse
Handshaking: BUSY and ACKNLG signal
Signal level: TTL-compatible level (IEEE-P1284 Level 1 device)
Adaptable connector: 57-30360 (Amphenol or equivalent)
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 INIT signal is LOW or during hardware initialization.
o During a printer error condition (See the ERROR signal description below.)
o During self-test printing.
o In default setting mode.
o When the parallel interface is not selected.
The ERROR signal is LOW when the printer is in one of the following conditions:
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 (n)
DATA
STROBE
BUSY
ACKNLG
500 ns (min.)
500 ns (min.) 500 ns (min.) 0 (min.)
0 (min.)
500 ns ~10 µs
0 (min.) 500 ns (max.)
DATA (n+1)
* : 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 1-4. Data Transmission Timing
General Description Stylus 1500 Service Manual
1-8 Rev. A

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 Return
GND Pin I/O Description
1STROBE 19 I Reading of data is performed at the falling
edge of this pulse.
2 - 9 DATA 0 - 7 20 - 27 I
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.
10 ACKNLG 28 OThis signal is a negative pulse indicating that
the printer can accept more data.
11 BUSY 29 OWhen this signal is HIGH, the printer cannot
receive data.
12 PE 28 O When this signal is HIGH, the printer detects a
paper-out error.
13 SLCT 28 O This signal is always HIGH when the printer is
powered on.
14 AFXT 30 I
15 NC — — Not connected.
31 INIT 30 I
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.
32 ERROR 29 OWhen this signal is LOW, the printer detects an
error.
36 SLIN 30 I Not used.
18 Logic H — O Pulled up to +5 V via a 3.9 KΩresistor.
35 +5 V — OPulled up to +5 V via a 3.3 KΩresistor.
17 Chassis GND — —Chassis ground.
16, 33
19 - 30 GND — —Signal ground.
15, 34 NC — —Not used.
Note: The I/O column indicates the direction of the signal as viewed from the printer.
Stylus 1500 Service Manual General Description
Rev. A 1-9

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:
ESC/P2
00H 36H
MFG: EPSON;
CMD: ESCPL2-00;
MDL: Stylus 1500;
CLS: PRINTER;
XL24E
00H 37H
MFG: EPSON;
CMD: PRPXL24-00;
MDL: Stylus 1500;
CLS: PRINTER;
Note: 00H denotes a hexadecimal value of zero.
General Description Stylus 1500 Service Manual
1-10 Rev. A

Table 1-5. Connector Pin Assignments and Signals (Reverse Channel)
Pin No. Signal Name Return
GND Pin I/O Description
1 Host Clk 19 I Host clock signal.
2 - 9 DATA 0 - 7 20 - 27 I
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.
10 PtrClk 28 O Printer clock signal.
11 Ptr Busy /
Data Bits 3, 7 29 O Printer busy signal and reverse channel transfer data bit 3 or 7.
12 Ack Data Req /
Data Bits 2, 6 28 O Acknowledge data request signal and reverse channel transfer data bit 2 or 6.
13 Xflag / Data Bits 1, 5 28 O X-flag signal and reverse channel transfer
data bit 1 or 5.
14 Host Busy 30 I Host busy signal.
31 INIT 30 I Not used.
32 Data Avail /
Data Bits 0, 4 29 O Data available and reverse channel transfer data bit 0 or 4.
36 1284-Active 30 I Active signal for IEEE-P1284 mode.
18 Logic-H — O Pulled up to +5 V via a 3.9 KΩresistor.
35 +5 V — O Pulled up to +5 V via a 3.3 KΩresistor.
17 Chassis GND — — Chassis ground.
16, 33
19 - 30 GND — — Signal ground.
15, 34 NC — — Not connected.
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:
Main type: MTP48p, PW136cl10cpi, PRG(L0xxxx)rev,AP800ma
Product name: Stylus 1500
Emulation type: ESCPL2-00
Entity type: EPSON LQ2
XL24E is selected:
Main type: MTP48p, PW136cl10cpi, PRG(L0xxxx)rev,AP800ma
Product name: Stylus 1500
Emulation type: PRPXL24-00
Entity type: EPSONPRPXL24
Stylus 1500 Service Manual General Description
Rev. A 1-11

1.3.2 Printer Languages and Control Codes
Printer languages and control codes: ESC/P2
IBM 24XL
EPSON Remote
General Description Stylus 1500 Service Manual
1-12 Rev. A

1.4 OPERATIONS
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.
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.
Figure 1-5. Control Panel Appearance
Stylus 1500 Service Manual General Description
Rev. A 1-13

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.
General Description Stylus 1500 Service Manual
1-14 Rev. A