Selecting paper
Using appropriate paper prevents jams and helps ensure trouble-free printing. To help avoid jams and poor print quality:
Multiple-part forms or documents
Recycled papers that fail EN12281:2002 (European)
Rough-edged, rough or heavily textured surface papers, or curled papers
Coated papers (erasable bond), synthetic papers, thermal papers
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• Paper weighing less than 60 g/m2 (16 lb)
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In some cases, registration can be adjusted with a software application to successfully print on these forms.
Preprinted papers that can be affected by the temperature in the printer fuser
Preprinted papers with chemicals that may contaminate the printer
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• Preprinted papers that require a registration (the precise print location on the page) greater than ±2.3 mm (±0.9 in.), such as optical character recognition (OCR) forms
Fiber content
Most high-quality xerographic paper is made from 100% chemically treated pulped wood. This content provides the paper with a high degree of stability resulting in fewer paper feeding problems and better print quality. Paper containing fibers such as cotton can negatively affect paper handling.
Unacceptable paper
The following paper types are not recommended for use with the printer:
• Chemically treated papers used to make copies without carbon paper, also known as carbonless papers, carbonless copy paper (CCP), or no carbon required (NCR) paper

•Always use new, undamaged paper.

•Before loading paper, know the recommended print side. This information is usually indicated on the package.

•Do not use paper, paper labels, or card stock that has been cut or trimmed by hand.

•Do not mix sizes, types, or weights in the same source; mixing results in jams.

•Do not use coated papers unless they are specifically designed for electrophotographic printing.

Selecting preprinted forms and letterhead

Use these guidelines when selecting preprinted forms and letterhead:

•Use grain long for 60 to 90 g/m2 weight paper.

•Use only forms and letterhead printed using an offset lithographic or engraved printing process.

•Avoid papers with rough or heavily textured surfaces.

Use papers printed with heat-resistant inks designed for use in xerographic copiers. The ink must be able to withstand temperatures up to 230°C (446°F) without melting or releasing hazardous emissions. Use inks that are not affected by the resin in toner. Inks that are oxidation-set or oil-based generally meet these requirements; latex inks might not. When in doubt, contact the paper supplier.

Preprinted papers such as letterhead must be able to withstand temperatures up to 230°C (446°F) without melting or releasing hazardous emissions.

Paper and specialty media guidelines

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Lexmark 420, 430 manual Selecting preprinted forms and letterhead
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430, 420 specifications

The Lexmark 420 and Lexmark 430 are part of Lexmark's line of efficient and robust printers crafted to meet the demands of both small businesses and larger work environments. These printers are designed with a focus on delivering high-quality output, reliability, and advanced features that streamline the printing process.

One of the standout features of the Lexmark 420 and 430 is their printing speed. The Lexmark 420 can achieve print speeds of up to 30 pages per minute (ppm) while the Lexmark 430 offers a slightly higher speed, reaching up to 35 ppm. This means that both models are well-suited for high-volume printing tasks, allowing users to print large documents quickly and efficiently.

In terms of print quality, both printers utilize advanced laser technology. They are capable of producing sharp text and vibrant graphics with a maximum resolution of 1200 x 1200 dpi. This level of detail makes these printers ideal for producing professional documents, including reports, presentations, and marketing materials.

Another key characteristic of the Lexmark 420 and 430 is their paper handling capabilities. Both models support a variety of media sizes and types, including letter, legal, and A4 sizes, as well as envelopes and labels. The standard input tray has a capacity of 250 sheets, and there is an option to add additional trays for increased capacity, making these printers versatile in handling different printing needs.

Connectivity options are another significant aspect of the Lexmark 420 and 430. These printers feature USB and Ethernet interfaces, allowing for easy integration into both wired and wireless networks. This connectivity facilitates convenient sharing among multiple users in an office environment, enhancing productivity and collaboration.

Security features are also well-implemented in both models. They come equipped with secure printing options to protect sensitive documents, ensuring that only authorized personnel can access printed materials.

Finally, user-friendly interfaces and intuitive control panels make the Lexmark 420 and 430 easy to operate, with options for setting preferences and monitoring printer status efficiently. With their combination of speed, quality, and versatile features, the Lexmark 420 and 430 are solid choices for any office looking to enhance productivity and maintain high printing standards.
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