1. Introducción
This manual provides essential information for the proper setup, operation, and maintenance of your Epson LQ-2090II 24-pin Dot Matrix Printer. The LQ-2090II is a wide-format impact printer designed for demanding print environments, offering durability and high productivity for critical daily printing tasks. It features a 24-pin print head, speeds up to 584 characters per second (cps), and supports various paper types including cut-sheet, continuous, and multipart forms up to 7 pages thick. For optimal performance and longevity, please read these instructions carefully before using the printer.

Figura 1: Frente view of the Epson LQ-2090II Dot Matrix Printer.
2. Contenido del paquete
Verifique que todos los elementos enumerados a continuación estén incluidos en el paquete de su impresora:
- Epson LQ-2090II Impact Printer Unit
- Cable de alimentación
- Ribbon Cartridge (initial)
- Guía del usuario (este documento)
- CD de software (puede variar según la región)
3. Configuración
3.1 Desembalaje y colocación
- Retire con cuidado la impresora de su embalaje.
- Retire todas las cintas protectoras y los materiales de embalaje de la impresora.
- Place the printer on a stable, flat surface with adequate ventilation. Ensure sufficient space around the printer for paper feeding and output.
3.2 Conexión de la impresora
The LQ-2090II supports both USB and Bidirectional Parallel (IEEE 1284 Nibble Mode) interfaces.
- Conexión de energía: Connect the power cable to the printer's power inlet and then to a grounded electrical outlet.
- Data Connection (USB): Connect one end of a USB cable to the USB port on the printer and the other end to an available USB port on your computer.
- Data Connection (Parallel): Connect one end of a parallel cable to the parallel port on the printer and the other end to the parallel port on your computer.
3.3 Instalación del cartucho de cinta
The ribbon cartridge is essential for printing. Install it as follows:
- Asegúrese de que la impresora esté apagada.
- Abra la cubierta de la impresora.
- Carefully unpack the new ribbon cartridge.
- Align the ribbon cartridge with the guides inside the printer and press it down until it clicks into place.
- Thread the ribbon through the print head mechanism according to the diagrams inside the printer. Ensure the ribbon is not twisted.
- Cierre la cubierta de la impresora.
3.4 Carga de papel
The LQ-2090II can handle various paper types. Refer to the specific method for your paper type.

Figure 2: The Epson LQ-2090II printer with continuous form paper loaded from the rear.
3.4.1 Loading Continuous Forms
- Ensure the paper release lever is in the continuous paper position.
- Feed the continuous form paper from the rear paper slot, aligning the sprocket holes with the tractor feed pins.
- Engage the tractor feed levers to secure the paper.
- Presione el Cargar/Expulsar button to advance the paper to the printing position.
3.4.2 Loading Cut-Sheet Paper
- Ensure the paper release lever is in the cut-sheet paper position.
- Adjust the paper guide to the width of your paper.
- Insert a single sheet of paper into the front or top paper slot until it meets resistance.
- The printer will automatically feed the paper to the printing position.
4. Instrucciones de funcionamiento
4.1 Panel de control terminadoview
The control panel allows you to manage basic printer functions and monitor its status.

Figura 3: detallada view of the Epson LQ-2090II control panel with buttons and indicator lights.
- Botón de encendido: Enciende o apaga la impresora.
- Load/Eject Button: Feeds or ejects paper.
- LF/FF (Line Feed/Form Feed) Button: Advances paper by one line or one page.
- Botón de pausa: Pausa o reanuda la impresión.
- Indicador de falta de papel: Lights up when paper is not loaded or has run out.
- Ribbon Indicator: Lights up when the ribbon cartridge needs replacement.
- Indicador de error: Lights up to indicate a printer error.
4.2 Impresión básica
- Asegúrese de que la impresora esté encendida y conectada a su computadora.
- Load the appropriate paper type.
- From your computer application, select the print option.
- Choose the Epson LQ-2090II as your printer and adjust any necessary print settings (e.g., paper size, print quality).
- Hacer clic Imprimir. The printer will begin printing.
4.3 Ajuste de la configuración de impresión
The LQ-2090II supports Epson ESC/P2® and IBM® PPDS printer languages, allowing for flexible control over print output. Settings such as character pitch, line spacing, and print quality can be adjusted through your computer's printer driver settings or by sending specific control codes to the printer.
5. Mantenimiento
5.1 Reemplazo del cartucho de cinta
The ribbon cartridge has a life cycle of up to 8 million characters. Replace it when print quality degrades or the Ribbon Indicator lights up.
- Apague la impresora.
- Abra la cubierta de la impresora.
- Retire con cuidado el cartucho de cinta usado levantándolo.
- Install a new ribbon cartridge as described in Section 3.3.
- Cierre la cubierta de la impresora.
5.2 Limpieza de la impresora
La limpieza regular ayuda a mantener la calidad de impresión y prolonga la vida útil de la impresora.
- Exterior: Limpie el exterior de la impresora con un paño suave y húmedo.amp Paño. No utilice limpiadores abrasivos ni disolventes.
- Interior: Periodically open the printer cover and gently remove any paper dust or debris using a soft brush or a small vacuum cleaner designed for electronics.
- Cabezal de impresión: If print quality issues persist (e.g., faint lines), consult the advanced settings in your printer driver for print head alignment or cleaning options. Avoid touching the print head directly.
6. Solución de problemas
Esta sección aborda problemas comunes que podrías encontrar.
| Problema | Posible causa | Solución |
|---|---|---|
| La impresora no enciende | Cable de alimentación no conectado; toma de corriente defectuosa | Asegúrese de que el cable de alimentación esté bien conectado. Pruebe con otra toma de corriente. |
| La impresora no imprime | Printer not connected to computer; Paper out; Ribbon depleted; Printer in pause mode | Check USB/Parallel cable connection. Load paper. Replace ribbon cartridge. Press the Pausa botón. |
| Impresión tenue o incompleta | Ribbon depleted or improperly installed; Print head clogged or misaligned | Replace ribbon cartridge. Reinstall ribbon correctly. Perform print head cleaning/alignment via printer driver. |
| Atascos de papel | Paper loaded incorrectly; Damaged paper; Obstruction in paper path | Remove jammed paper carefully. Reload paper correctly. Check for and remove any foreign objects. |
| Lines appearing in printout | Print head issues (clogged pins, misalignment) | Perform print head cleaning and alignment through the printer driver software. If the issue persists, contact support. |
7. Especificaciones
Key technical specifications for the Epson LQ-2090II printer:
- Tecnología de impresión: 24-pin Dot Matrix
- Velocidad de impresión: Up to 584 cps (characters per second)
- Resolución: 240 x 240 ppp
- Conectividad: USB 2.0, Bidirectional Parallel (IEEE 1284 Nibble Mode)
- Idiomas de la impresora: Epson ESC/P2®, IBM® PPDS
- Tipos de papel: Cut-sheet, Continuous forms, Multipart forms (up to 7 pages thick), Envelopes, Labels
- Tamaño máximo de medio: 4" x 22" (continuous), Envelope No. 6, Envelope No. 10
- Vida de la cinta: Hasta 8 millones de caracteres
- Dimensiones (profundidad x anchura x altura): 29" x 18" x 11" (73.66 cm x 45.72 cm x 27.94 cm)
- Peso: 20.7 libras (9.39 kg)
- Consumo de energía: 52 Watts (operating)
- Salida de la impresora: Monocromo
8. Garantía y soporte
8.1 Garantía limitada
The Epson LQ-2090II 24-pin Dot Matrix Printer comes with a Garantía limitada de 3 años. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims. For full terms and conditions, refer to the warranty documentation included with your product or visit the official Epson support websitio.
8.2 Soporte técnico
For technical assistance, driver downloads, or further troubleshooting not covered in this manual, please visit the official Epson support website or contact Epson customer service. Have your printer model number (LQ-2090II) and serial number ready when contacting support.