HP ProSignia 120 Maintenance And Service Manual
Download Maintenance and service manual of HP 140 All in One Printer, Copier for Free or View it Online on All-Guides.com. This version of HP 140 Manual compatible with such list of devices, as: 140, 155, 160, 170
Brand: HP
Category: All in One Printer , Copier , Laptop , Printer
Type: Maintenance and service manual
Model: HP 140 , HP 155 , HP 160 , HP 170
Pages: 144 (2.84 Mb)
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2-32 Troubleshooting
Table 2-26
Solving Screen Problems
Continued
Problem Probable Cause Recommended Action(s)
Display on an external monitor
is distorted.
Incorrect display device
drivers are installed or
incorrect resolution is set.
Double-click the Display icon in Control
Panel, click the Settings tab, and set the
correct display type and resolution for the
external monitor.
The external monitor is not
Energy Star compliant, but
monitor energy saving feature
is enabled.
Complete these steps:
1. Press any key or move the pointing
device to restore the display.
2. If display remains distorted, turn off the
monitor, then turn it on again.
3. Disable the monitor energy saving feature
in Display Properties or in Computer Setup
Power Management.
The image has a black border
and does not fill the screen.
The Desktop Area setting is
smaller than the Resolution
setting.
Adjust the settings for the Desktop Area and
Resolution. Double-click Control Panel
Display ⇒ Settings ⇒ Compaq.
Press the Fn+T keys to expand the image.
Solving USB Problems
Table 2-27
Solving USB Problems
Problem Probable Cause Recommended Action(s)
External device connected to a
USB connector does
not work.
The operating system limits
external devices connected by
USB to two tiers that can
include no more than two
hubs on the first tier and no
more than one keyboard and
one pointing device on the first
or second tier.
Reduce the number of connected external
USB devices to no more than two hubs on
the first tier, and no more than one keyboard
and one pointing device on the first or
second tier.
External device connected to a
USB connector does not work
during startup (before
Windows 95 loads).
During startup, only two tiers
are supported by the USB
connector. These tiers can
include no more than two
hubs on the first tier and no
more than one keyboard and
one pointing device on the first
or second tier.
Use the external device only after Windows
95 has loaded.
Reduce the number of connected external
USB devices to no more than two hubs on
the first tier, and no more than one keyboard
and one pointing device on the first or
second tier.
External devices in lower tiers
do not work.
An unpowered hub is
connected to another
unpowered hub.
Use only powered hubs.
Make sure that all unpowered hubs are
immediately preceded by powered hubs in
the USB chain.