HP 250C - Manual (Page 166)

230
250C
8Ć32 Troubleshooting C4699Ć90000
Plots joined or not
plotted.
HPĆGL timeout: If the user is using an
HP 7586B
(HPĆGL) driver, it
may not end files properly with the result that several plots may be
joined, or not plotted at all. In this case you need to choose an
I/O Timeout
period. (Instructions ' User's Guide.) The timeout tells
the plotter how long to wait before assuming a plot is complete.
Short timeout period: A timeout setting that is too short results in
incomplete plots.
Long timeout period: If the plotter has finished receiving the plot
data (
Ready
LED stops flashing and remains on) and is waiting for
the timeout period to finish before plotting, you can command it to
plot immediately by pressing
Form Feed
.
Damage to
electronics module.
Condensation: In conditions of high humidity, water may
condense on the plotter sideĆplates. To stop this water dripping
onto the main PCA, a wick is attached to the underside of the right
sideĆplate. This wick uses capillary action to route the water away
from the electronics. If the wick is damaged, water may damage the
main PCA.
ThirdĆparty ink and
offĆaxis ink systems.
Drawer statement: HP does not support thirdĆparty inks or
offĆaxis ink systems for use with any of its DesignJet series plotters
or printers. If a failure or damage to such HP products is found to
be directly attributed to the use of thirdĆparty inks or offĆaxis ink
systems (or any other nonĆsupported HP supply or accessory), the
repair will NOT be covered under HP's warranty or maintenance
contract. In such cases, standard time and material charges will be
applied to service the plotter or printer."
Troublesome
plotters.
Duty cycle: Plotters need increased maintenance if users do not
limit use to the dutyĆcycle recommendations. (Details ' chapter 4.)
Random or
incorrectly ordered
LED sequence at
powerĆon.
Adjust electronics module: The gasket to the left of the
motor/sensor connectors on the electronics module may be
shortĆcircuiting the frontĆpanel connector contacts. Push the gasket
to the left, away from the connectors.
Failure in RSĆ232ĆC
communication.
Faulty electronics module: Failure of the Ć12V voltage in the
power supply shows up as a failure in RSĆ232ĆC communication.
The serial port might fail: completely, occasionally, or only with
some PC models. See also error codes
Flashing 39 , Steady 139 , and Steady 349 .
Changing electronics
module or motors.
Pinched cables: Before changing an electronics module in which
the main PCA has failed, make sure that the cables from the
carriage motor and media motor have not been pinched. Pinched
cables could have caused a shortĆcircuit and damaged the chips that
control the motors. (A faulty motor could also have caused the same
to happen.)