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Serial submenu, Trickle time – Printronix P7000 Cartridge Ribbon Printer User Manual

Page 97

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Serial Submenu

97

Trickle Time

When the printer is printing data from a host and a second job is received by
the printer from a different host, Trickle Time prevents the second host from
timing out while it is waiting for its data to be printed. In order to support this
feature, the port has to be able to accept data from the host and store it for
future use.

For example, if the printer is printing a job from the serial port, and then
receives a second print job from the parallel port, the data from the parallel
port will “trickle” bit by bit into the printer buffer to prevent a timeout error from
being sent back to the host connected to the parallel port.

The selected value is the time that the printer waits before getting the next
byte of data from the host. The Trickle Time value should be less than the
host time out value, but not too much shorter or else the printer fills up its
buffer too fast. This function is not applicable for C/T hotport.

Serial Submenu

Serial

(from page 87)

Interface

Type

Data

Protocol

Baud

Rate

Word

Length 8

Stop

Bits 1

Parity

Data Term

Ready

Request to

Send

Buffer Size

in K

1

Poll

Character

Poll

Response

RS 232*

RS 422

XON/XOFF*

ETX/ACK

ACK/NAK

Series1 1 Char

Series1 2 Char

ENQ/ACK

DTR

600 Baud

1200 Baud

2400 Baud

4800 Baud

9600 Baud*

19200 Baud

38400 Baud

57600 Baud

115200 Baud

8*

7

1*

2

None*

Odd

Even

Mark

Sense

True*

On-Line and BNF

Off-Line or BF

On-Line

False

On-Line and BNF*

Off-Line or BF

On-Line

False

True

16*

1-16

00 Hex*

(0-FF hex)

0 ms*

(1-30 ms)

* = Factory Default

1

OpenPrint HD products have an extended range to 256.

One Char

Enquiry

Disable*

Enable

Framing

Errors

Disable

Enable*

Idle

Response

Disable*

Enable

Offline

Process

Disable

Enable*