ATo hold the paper against the cylinder
BTo hold cards and envelopes close to the cylinder
CTo control the left margin
DTo indicate line spacing
Answer:
B. To hold cards and envelopes close to the cylinder
Read Explanation:
The card holder, also sometimes referred to as a card platen or card bail, is a crucial component of a typewriter, particularly in older models or specialized typewriters designed for specific tasks.
Primary Function:
Its main purpose is to secure and guide paper, cards, or envelopes as they are fed through the typing mechanism.
It ensures that the printing occurs at the correct position on the medium by holding it firmly against the platen (the roller).
Mechanism and Operation:
Typically, the card holder is a spring-loaded arm or a set of rollers positioned above and behind the platen.
When a document is inserted, the card holder is either manually lifted or automatically retracts slightly to allow the paper to slide underneath.
Once the paper is in place, the card holder exerts gentle pressure, keeping the card or envelope flush against the platen. This consistent contact is vital for accurate character impression.
It helps prevent the paper from slipping or creasing during the typing process, which could lead to misaligned text or jams.