HP digital sender 9200c Manuale Di Servizio
Basic operation
All high-level digital sender processes are routed through the formatter, which processes the image
and communicates with the host computer.
and communicates with the host computer.
The basic digital sender operation can be divided into three systems:
■
The engine control system, which includes the power supply and the scanner controller board
■
The pickup-and-feed system, which consists of various rollers and transports the media through
the digital sender
the digital sender
■
The scanner system, which scans data and sends it to the formatter for sending
Sequence of operation (scanner)
Period (sequence)
Description
Power on
The period of time from when the digital sender power is turned on until the main motor
begins to rotate.
begins to rotate.
Initialization
The period of time after the initial power-on sequence and before the digital sender is
ready to scan. During this time, the scanner and ADF initialization is completed, scanner
calibration is performed, and the ADF checks for media in the input tray.
ready to scan. During this time, the scanner and ADF initialization is completed, scanner
calibration is performed, and the ADF checks for media in the input tray.
Standby
The period of time from the end of the initialization sequence until a request for a scan.
During this time, the scan carriage is in the Home position and the digital sender might go
into Sleep mode.
During this time, the scan carriage is in the Home position and the digital sender might go
into Sleep mode.
Scan
The period of time immediately following a request for a scan. The scanner fan turns on,
the scan start position is adjusted, the digital sender performs the scan, and data is sent to
the formatter.
the scan start position is adjusted, the digital sender performs the scan, and data is sent to
the formatter.
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5 Theory of Operation