Tektronix Phaser 840, Service Manual

Page: 30 / 207

Service Guide 19
Front panel
These front panel features are found on the printer:
■
128 x 64 pixel backlighted graphic display
■
Two push buttons and four arrow buttons
■ Two LEDs
LCD. The backlighted LCD serves two purposes: displaying current image
processor and print engine status information and displaying an interactive
menu. Status information includes image processor status such as
Ready to
print
,
Receiving data
and
Printing
. Print engine status includes messages
such as
Out of paper
,
Paper Jam
,
Add ink
as well as error messages.
Customers can review and modify certain NVRAM, I/O ports and peripheral
parameters. Using the front panel to review and change parameters is discussed
in the topic, “Adjustments” on page 91.
Buttons. Four of the six buttons are arranged as a diamond-shaped keypad. The
other two buttons are used as Select and Help.
Refer to “Adjustments” on page 91 for details on using the front panel controls to
enter special printer modes.
The topic “Resetting NVRAM” on page 121 explains how to use the front panel
buttons to reset the NVRAM to its factory-default values.
Printer front panel
0388-10
READY TO PRINT
Navigation
buttons
Select
button
Help
button
Error
Power