問88
頻出度★☆☆
感光ドラム上に印刷イメージを作り, 粉末インク (トナー) を付着させて紙に転写, 定着させる方式のプリンタはどれか。
平成28年度 春期 ITパスポート試験 問88
This question's explanation and your answers so far.
解説
問 88
Incorrectア
An inkjet printer prints by spraying liquid ink directly onto the paper through fine nozzles; it uses neither a photosensitive drum nor toner, so it is incorrect.
Incorrectイ
An impact printer prints characters onto paper by striking an ink ribbon with pins or a hammer; it does not use a photosensitive drum or toner, so it is incorrect. It is used for tasks such as printing on multi-part (carbon-copy) forms simultaneously.
Incorrectウ
A thermal transfer printer transfers ink onto paper by using heat to melt or sublimate the ink on an ink ribbon; it uses neither a photosensitive drum nor powdered toner, so it is incorrect.
- エ
正解 The sequence described in the question — forming a print image on a photosensitive drum, making powdered ink (toner) adhere, and transferring and fixing it onto paper — is exactly how a laser printer works. A laser printer uses a laser beam to draw an electrostatic latent image (the print image) on the surface of the photosensitive drum, makes charged toner adhere to it, transfers it onto paper, and then fixes it with heat and pressure to complete the print. Therefore, “エ Laser printer” is the correct answer.
ここがポイント
- How a laser printer works: a laser beam forms a latent image on the photosensitive drum, powdered toner adheres to it, and it is transferred onto paper and fixed with heat.
- Distinguishing the main printer types: inkjet (sprays liquid ink), impact (strikes to print), thermal transfer (transfers ink with heat), and laser (photosensitive drum + toner) — do not confuse them.
用語