問81
頻出度★☆☆
印刷時にカーボン紙やノンカーボン紙を使って同時に複写が取れるプリンタはどれか。
平成24年度 秋期 ITパスポート試験 問81
This question's explanation and your answers so far.
解説
問 81
Incorrectア
An inkjet printer is a non-contact type that prints by spraying fine droplets of ink from nozzles onto the paper. Because the print head does not strike the paper, no striking pressure reaches the sheets below, so no copy is produced even if carbon paper is stacked underneath.
- イ
正解 The correct answer is “イ Impact printer”. An impact printer (a typical example is the dot impact printer) prints by physically striking the paper through an ink ribbon with the pins or hammers of the print head. The pressure of this strike is transmitted not only to the surface of the paper but also downward, so if carbon paper or carbonless paper is inserted and sheets are stacked, a single printing action transfers the image to the lower sheets at the same time, producing copies (duplicates) in one pass. In work that handles multi-part forms such as delivery notes, invoices, and receipts, this ability to make simultaneous copies is exactly why impact printers are still in use today, even though they are inferior in print quality and quietness.
Incorrectウ
A thermal printer prints by heating thermal paper with the heating elements of a thermal head so that the chemical coating on the paper surface develops color. Since only the topmost sheet that receives the heat develops color, copies cannot be made (cash register receipts are a typical example).
Incorrectエ
A laser printer uses the electrophotographic method: a laser beam draws an electrostatic latent image on the photoconductor drum, toner is attracted to it, and the toner is then fixed onto the paper with heat and pressure. It feeds and prints one sheet at a time and has no mechanism for producing copies by striking, so it cannot make simultaneous copies with carbon paper.
ここがポイント
- The impact printer (dot impact type) prints by striking, so it is the only type that can make simultaneous copies using carbon paper or carbonless paper, and it is used in work involving multi-part forms.
- Organize printers by their printing principle when memorizing them: striking = impact, spraying ink = inkjet, heating to develop color = thermal, electrophotography (toner + fusing) = laser. Non-contact types and thermal types have no striking pressure, so they cannot make copies.
用語