A carbon copy printer, often using dot matrix technology, is a type of printer that allows you to print the same data on multiple sheets of paper simultaneously, effectively creating copies without needing to re-print the information. It mimics the functionality of using carbon paper by striking pins against an inked ribbon, transferring the image to multiple layers of paper.
How it Works
The core principle involves impact printing. A print head containing a series of pins strikes an inked ribbon. This impact forces the ink onto the top sheet of paper, and the pressure transfers the image to subsequent sheets beneath, thanks to special multi-part forms (paper interleaved with carbon or a similar transfer material).
Key Features
- Multipart Forms: Carbon copy printers require special paper called multipart forms. These forms consist of multiple sheets of paper stacked together, with carbon paper or a chemical coating between each sheet.
- Impact Printing: The print head physically strikes the ribbon and paper to create the image. This distinguishes it from non-impact printers like inkjet or laser printers.
- Dot Matrix Technology: Most carbon copy printers use dot matrix technology, which creates characters and images using a matrix of tiny dots.
- Paper Source Flexibility: These printers often allow you to select different paper sources to accommodate various paper types.
- Simultaneous Copying: The primary benefit is the ability to create multiple copies of a document at the same time, saving time and effort.
Advantages
- Cost-Effective for Multi-Part Forms: When you need multiple copies of documents frequently, it is usually more economical in the long run.
- Durable Copies: The carbon copies created are durable and resistant to fading.
- No Toner or Inkjet Cartridges Needed: Uses a replaceable ribbon which is less expensive.
Disadvantages
- Lower Print Quality: Dot matrix printing typically offers lower resolution and print quality compared to laser or inkjet printers.
- Noisy Operation: Impact printing is generally noisier than other printing technologies.
- Limited Color Printing: Color printing is possible but often limited to a small range of colors and lower quality.
Common Applications
- Invoicing and Receipts: Generating multiple copies of invoices or receipts for both the business and the customer.
- Shipping and Logistics: Creating bills of lading and other shipping documents.
- Financial Transactions: Producing copies of financial records for accounting purposes.
- Point of Sale (POS) Systems: Printing customer receipts.
In summary, a carbon copy printer is an impact printer that uses multipart forms and dot matrix technology to create multiple copies of a document simultaneously. While it offers benefits like cost-effectiveness for high-volume copying, it has limitations in print quality and noise compared to newer printing technologies.
