Lexmark E220 Service Manual - Page 169

E320/E322, USB NPA mode

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4500-E320/E322 USB NPA mode USB NPA mode allows for two way communication between the host computer and the printer. Perform the following steps to change the USB NPA setting: 1. Enter the configuration mode. See "Configuration mode" on page 3-14 for more information. 2. Perform a double button press nine times. This moves to the USB NPA mode item on the configuration menu. The USB NPA (Error) light is blinking. 3. The current USB NPA setting is indicated by the off/on/auto (Press Button) light. • When the light is off, the USB port does not search for NPA data within the received data. • When the light is blinking, the USB port searches for optional NPA data within the received data. • When the light is on solid, the USB port requires that data sent to the printer be in NPA format. 4. Perform a brief button press to select a different USB NPA setting. 5. Perform a long button press. All lights blink once, indicating the setting is saved. 6. Exit the configuration mode by turning the printer power off. Off/on/auto ❍ ● ✳ Setting value USB port does not search for NPA data within the received data. USB port requires that data sent to the printer be in NPA format. USB port searches for optional NPA data within the received data. Diagnostic aids 3-33

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Diagnostic aids
3-33
4500–E320/E322
USB NPA mode
USB NPA mode allows for two way communication between the host
computer and the printer.
Perform the following steps to change the USB NPA setting:
1.
Enter the configuration mode. See
“Configuration mode” on
page 3-14
for more information.
2.
Perform a double button press nine times. This moves to the
USB NPA mode item on the configuration menu. The USB NPA
(Error) light is blinking.
3.
The current USB NPA setting is indicated by the off/on/auto
(Press Button) light.
•
When the light is off, the USB port does not search for NPA
data within the received data.
•
When the light is blinking, the USB port searches for optional
NPA data within the received data.
•
When the light is on solid, the USB port requires that data
sent to the printer be in NPA format.
4.
Perform a brief button press to select a different USB NPA
setting.
5.
Perform a long button press. All lights blink once, indicating the
setting is saved.
6.
Exit the configuration mode by turning the printer power off.
Off/on/auto
Setting value
❍
USB port does not search for NPA data within the
received data.
●
USB port requires that data sent to the printer be in NPA
format.
✳
USB port searches for optional NPA data within the
received data.