HP CM8060 Color MFP Kundendienst Handbuch Seite 98

Protected Service Mode (PSM)
When the engine detects a hardware failure, a service fault is reported to the formatter, and shuts down
to avoid damage to the unit. The formatter maps these service faults to error codes, displays the Call
Service error message, and logs the specific entry into the error log. If the service fault is detected as
part of the normal startup process, the power-on sequence results in the engine shutting down.
Service faults cause the engine to shut down all communication and CDFT is not able to communicate
with MFP devices, such as sensors or motors. In order to allow diagnostics, the MFP must be restarted
in Protected Service Mode (PSM). In PSM, the system is powered up into a minimal state to enable
critical features only, such as diagnostics. It is similar to Windows® "SAFE mode", a minimal-function
state that provides the ability to diagnose the engine and isolate the faulty hardware.
PSM is initiated by service personnel through the Startup Menu. For information on starting the Startup
Menu, see „Startup Menu service functionality" auf Seite
Note that the MFP cannot process print jobs in PSM and a power cycle will be required after PSM to
reset the system for printing.
ACHTUNG:
will cause the carriages to move after a few seconds' delay, potentially causing pinch points.
An example service call might have the following sequence of events:
1. The system is consistently coming up from power cycling with a service fault, indicated by a Call
Service error display on the control panel.
2. Service personnel power cycle the MFP into PSM to diagnose the engine service fault.
3. Service personnel use CDFT-E to isolate faulty components in the following ways:
● Viewing the error log
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Viewing the error details
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Linking to diagnostic tool pages to exercise the components identified
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Testing and probing with a volt meter
4. Service personnel exits PSM, and then cycles power on the MFP
32 Kapitel 2 Service approach
Once out of PSM, closing the last MFP door or installing a door interlock override device
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