AMT Datasouth Fastmark M1 Guia do Utilizador descarregar pdf (Página 41)

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Device Status

Benefits of Using a Serial Connection

l More detailed status information

l Cable to printer can be much longer than a parallel cable (up to 50 feet).

Drawbacks

l Requires a specific NULL/MODEM cable

l Requires that printer settings for baud, stop bits, parity, data bits, and flow control match the

same settings in the software.

l Slower connection speed than the rest of the connection types.

l The number of serial ports on a computer is limited to 1 or 2.

l Loftware does not recommend serial connections when using the Loftware Print Server

Parallel

Stand-alone parallel printing involves a connection from a computer’s parallel port (LPT) to a Centronix

(parallel) port on the printer. Most new printers have a parallel port; many older or less expensive

printers may not. If the printer is in an error state, a message is displayed after an attempt to print the

label. With this type of connection, it may take from 1 second to 5 minutes to display the message

depending on the type of error. When no power is supplied to the printer, the error message is displayed

instantaneously.

In other cases, such as the printer being in a pause or stock/ribbon-fault mode, error messages may not

be received until the printer’s memory buffer is full. The amount of time this takes depends on the size of

your label and how many requests were made. When the fault condition is corrected, the labels print (as

long as the printer has not been shut off).

Benefits of Using a Parallel Connection

l No communications settings (baud, parity, etc) need to be set.

l Parallel connections are 3 to 5 times faster than serial connections.

l USB data transfer rate even faster, print quality high as well.

Drawbacks

l Shorter cable lengths (15 feet max)

l Status is not as detailed as a serial connection, but is considered “good enough.”

l Computers usually only have one parallel port.

Note: Loftware does not recommend using parallel or USB ports with the Loftware Print Server.

Spooling

Print Spooling uses the Windows Print Manager to queue requests to the device. In stand-alone printing

to a spooler, if the device is in an error state, an error message is displayed after an attempt to print the

Loftware LabelManager Version 10.1.1 User's Guide

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