Printer Problems - Compaq AP200 Maintenance And Service Manual

4-12 Diagnostic Tools
Solutions for Display Problems
Problem
Blurry display or requested resolution cannot be set.
The picture is broken up; it rolls, jitters, or blinks.
Screen goes blank.
Monitor overheats.
Cursor will not move using the arrow keys on the numeric
keypad.

Printer Problems

Problem
Printer will not print.
Printer will not turn on.
Prints garbled information.
Printer is off-line.
Continued
Possible Solution
If the graphics controller was upgraded, the correct display
drivers may not be loaded.
Install the correct display drivers on the diskette included in
the upgrade kit.
Be sure the monitor cable is securely connected to the
computer.
In a 2-monitor system or if another monitor is in close
proximity, the monitors may interfere with each other's
magnetic field. Move them farther apart.
A screen blanking utility may be installed or energy saver
features are enabled. Press any key or type password. Wait a
few seconds for the screen to become active.
There is not enough ventilation space for proper airflow. Leave
at least 3 inches (7.6 cm) of ventilation space. Also, be sure
there is nothing on top of the monitor to obstruct air flow.
The Num Lock key is on. Press the Num Lock key. The Num
Lock light should not be on when you want to use the arrow
keys.
Table 4-5
Solutions for Printer Problems
Possible Solution
Printer is not turned on and on-line. Turn the printer on and
be sure it is on-line.
The correct printer drivers for the application are not
installed. Install the correct printer drivers for the application.
If the workstation is on a network, the printer may not be
connected to the network. Make the proper network
connections to the printer.
The cables may not be connected properly. Reconnect all
cables and check the power cord and grounded AC outlet.
The correct printer drivers for the application are not
installed. Install the correct printer driver for the application.
The cables may not be connected properly. Reconnect all
cables.
The printer may be out of paper. Check the paper tray and
refill it if it is empty. Select on-line.