Epson 4100 manual Input Buffer Size, Stop Bits

Operator's Guide 65

Stop Bits

Pressing YES prints out the present stop bit status:

•1 Bit (factory default)

•2 Bits

The printer uses the stop bit(s) to detect the space in-between data bytes. The stop bit follows the parity bit if parity is enabled.

1 Bit: One bit is sufficient for the printer and most modern computers.

2 Bits: Consider using two stop bits if you transmit at a relatively high baud using an older, slower computer.

Input Buffer Size

Pressing YES prints out the present setting:

•Maximum (no user-defined characters) (factory default)

•Minimum (user-defined characters OK)

The printer contains a 32K RAM, part of which is available as an input buffer. The input buffer is used for storing print data, graphics, and user- defined characters. If you download and retain user-defined characters, you decrease the amount of memory available for input print data.

Maximum (no user-defined characters): All of the input buffer is reserved for input print data. User-defined, downloaded (custom) characters are rejected.*

Minimum (user-defined characters OK): The minimum amount of space assigned to the input buffer for print data is reduced to 532 bytes. The rest is used to accommodate custom characters downloaded from the

*Maximizing the input buffer size does not affect the use of graphic fonts, such as TrueType fonts. The restriction only applies to custom characters downloaded using universal control commands.