HP LaserJet 4v/mv Service Manual - Page 78

Control Panel, Interface PCA

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Control Panel The Formatter PCA sends and receives printer status and command data via a Control Panel PCA. The Control Panel consists of a 16-character display window and an 8-key keypad. Control Panel messages can be configured in any of several languages. Refer to "Using the Control Panel," in Chapter 3, and to "Printer Message Troubleshooting" in Chapter 7, for more information. The eight keys on the keypad are used for a variety of functions (see Chapter 3). Keyboard overlays are available in any of several different languages (see Chapter 8 for part numbers). Interface PCA The Interface PCA provides the interconnections between the Formatter PCA, the Control Panel and the DC Controller PCA. Refer to Figure 5-1 and the Main Wiring diagram at the end of Chapter 7. The Interface PCA is located inside the Card Cage Assembly and contains no active circuitry. 5-16 Functional Overview

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Control Panel
The Formatter PCA sends and receives printer status and command data
via a Control Panel PCA.
The Control Panel consists of a 16-character
display window and an 8-key keypad.
Control Panel messages can be
configured in any of several languages. Refer to “Using the Control Panel,”
in Chapter 3, and to “Printer Message Troubleshooting” in Chapter 7, for
more information.
The eight keys on the keypad are used for a variety of functions (see
Chapter 3).
Keyboard overlays are available in any of several different
languages (see Chapter 8 for part numbers).
Interface PCA
The Interface PCA provides the interconnections between the Formatter
PCA, the Control Panel and the DC Controller PCA.
Refer to Figure 5-1
and the Main Wiring diagram at the end of Chapter 7.
The Interface PCA is
located inside the Card Cage Assembly and contains no active circuitry.
5-16 Functional Overview