HP M3027 Service Manual - Page 205

Troubleshooting flowchart, 1. Does the control-panel display show READY?

Page 205 highlights

Troubleshooting flowchart If the device is not responding correctly, use the flowchart to determine the problem. If the device does not pass a step, follow the corresponding troubleshooting suggestions. 1. Does the control-panel display show READY? YES Go to step 2. NO The control-panel ● display is blank, and the device fan is off. ● ● Turn the device off, and then turn it on again. Check the power cord connections and the power switch. Plug the device into a different outlet. ● Check that the power supplied to the device is steady, and meets device specifications. (See Electrical specifications on page 328.) The control-panel display appears with no backlighting. Check the power connector to the ADF/scanner assembly. The control-panel ● Press a control-panel button to see if the device responds. display is blank, but the device fan is on. ● Check the ribbon cable to the ADF/scanner assembly. ● Turn the device off, and then turn it on again. The control-panel display is in the wrong language. ● Turn the device off, and then turn it on again. When XXX MB appears on the control-panel display, press and hold down the 6 key until all three lights remain illuminated. This could take up to 10 seconds. Then, release the 6 key. Use the 3 and 9 keys to scroll to Language and then press the 6 key to select it. Use the 3 and 9 keys to scroll through the available languages to the language you want and then press the 6 key to select it. The control-panel ● display shows garbled or unfamiliar ● characters. A message other ● than READY appears on the control-panel display. Make sure that the appropriate language is selected at the device control panel. Turn the device off, and then turn the device on again. See Control-panel messages on page 201. ENWW Troubleshooting process 193

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Troubleshooting flowchart
If the device is not responding correctly, use the flowchart to determine the problem. If the device does
not pass a step, follow the corresponding troubleshooting suggestions.
1. Does the control-panel display show READY?
YES
Go to step 2.
NO
The control-panel
display is blank, and
the device fan is off.
Turn the device off, and then turn it on again.
Check the power cord connections and the power switch.
Plug the device into a different outlet.
Check that the power supplied to the device is steady, and meets device specifications. (See
Electrical specifications
on page
328
.)
The control-panel
display appears with
no backlighting.
Check the power connector to the ADF/scanner assembly.
The control-panel
display is blank, but
the device fan is on.
Press a control-panel button to see if the device responds.
Check the ribbon cable to the ADF/scanner assembly.
Turn the device off, and then turn it on again.
The control-panel
display is in the
wrong language.
Turn the device off, and then turn it on again. When XXX MB appears on the control-panel
display, press and hold down the
6
key until all three lights remain illuminated. This could take
up to 10 seconds. Then, release the
6
key. Use the
3
and
9
keys to scroll to
Language
and then
press the
6
key to select it. Use the
3
and
9
keys to scroll through the available languages to the
language you want and then press the
6
key to select it.
The control-panel
display shows
garbled or unfamiliar
characters.
Make sure that the appropriate language is selected at the device control panel.
Turn the device off, and then turn the device on again.
A message other
than READY appears
on the control-panel
display.
See
Control-panel messages
on page
201
.
ENWW
Troubleshooting process
193