HP laserjet 3390, 3392 all-in-one サービスマニュアル
DSL problems
A digital subscriber line (DSL) uses digital technology over standard copper phone wires. These DSL
services rely on an AM signal. The HP LaserJet 3390/3392 all-in-one is a Group 3 fax device, which
operates below the DSL capability and is not directly compatible with digital signals. However, if the
configuration is specified during the DSL line setup, the signal on a DSL line can be separated so that
some of the bandwidth is used to transmit an analog signal (for voice and fax) while the remaining
bandwidth transmits digital data. Split the signal to use both the telephone or fax and the computer on
the same line and at the same time.
services rely on an AM signal. The HP LaserJet 3390/3392 all-in-one is a Group 3 fax device, which
operates below the DSL capability and is not directly compatible with digital signals. However, if the
configuration is specified during the DSL line setup, the signal on a DSL line can be separated so that
some of the bandwidth is used to transmit an analog signal (for voice and fax) while the remaining
bandwidth transmits digital data. Split the signal to use both the telephone or fax and the computer on
the same line and at the same time.
NOTE
Not all printers and faxes are compatible with DSL services. HP does not guarantee that
the HP LaserJet all-in-one will be compatible with all DSL service lines or providers.
The DSL modem requires a high-pass filter. When DSL service is installed, the service provider
sometimes supplies a splitter, which includes a low-pass filter, for the normal phone wiring. If not, the
user should contact the DSL provider to request a filter or splitter so that a fax modem can operate on
the line.
sometimes supplies a splitter, which includes a low-pass filter, for the normal phone wiring. If not, the
user should contact the DSL provider to request a filter or splitter so that a fax modem can operate on
the line.
NOTE
HP recommends discussing the DSL-line setup options with the DSL service provider.
Consult the DSL provider for technical installation requirements.
An Asymmetric Digital Subscriber Line (ADSL) is a version of DSL that provides greater efficiency by
allowing upload and download rates to differ. Because ADSL is a version of DSL, the previous DSL
information also applies to ADSL.
allowing upload and download rates to differ. Because ADSL is a version of DSL, the previous DSL
information also applies to ADSL.
PABX line problems
The HP LaserJet all-in-one is an analog device that is not compatible with all digital phone environments
(unless a digital-to-analog converter is used). it might be difficult for you to troubleshoot fax issues
without assistance from someone who is familiar with the technical details of the customer’s digital
environment and the analog converter. HP does not guarantee that the HP LaserJet all-in-one will be
compatible with digital environments or digital-to-analog converters.
(unless a digital-to-analog converter is used). it might be difficult for you to troubleshoot fax issues
without assistance from someone who is familiar with the technical details of the customer’s digital
environment and the analog converter. HP does not guarantee that the HP LaserJet all-in-one will be
compatible with digital environments or digital-to-analog converters.
ENWW
DSL problems
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