HP LaserJet Enterprise M607n - Power subsystem; Power-on checks

Table 2-8 Troubleshooting owchart (continued)
2
Control panel
messages
Does an error message appear on control-panel
display?
After the errors have been corrected, go to step 3.
No
Yes
3
Event log
Open the Troubleshooting menu and view or
print an event log to see the history of errors
with this printer.
Does the event log print?
If the event log does not print, check for error messages.
If paper jams inside the printer, see the jams section of the printer
service manual.
If error messages display on the control panel when trying to print an
event log, see the control panel message document (CPMD) for this
printer.
NOTE: The CPMD is not provided in this service manual. The CPMD for
this printer is available on the HP Service Access Workbench (SAW) Web
site. Go to http://h41302.www4.hp.com/km/saw/home.do.
After successfully printing and evaluating the event log, see step 4.
Yes
No
4
Information pages
Open the Reports menu and print the
conguration pages to verify that all the
accessories are installed.
Are all the accessories installed?
If accessories that are installed are not listed on the conguration
page, remove the accessory and reinstall it.
After evaluating the conguration pages, see step 5.
Yes
No
5
Print quality
Does the print quality meet the customer's
requirements?
Compare the images with the sample defects in the print quality
troubleshooting guide. See the printer specic image defects section in
the printer troubleshooting service manual.
After the print quality is acceptable, see step 6.
Yes
No
6
Interface
Can the customer print successfully from the
host computer?
Verify that all I/O cables are connected correctly and that a valid
IP address is listed on the HP Jetdirect conguration page.
If error messages display on the control panel when trying to print an
event log, see the control-panel message section of the printer
troubleshooting service manual.
When the customer can print from the host computer, this is the end of
the troubleshooting process.
Yes. This is the end of
the troubleshooting
process.
No
Power subsystem
Power-on checks
The basic printer functions should start when the printer is connected into an electrical outlet and the power
switch is pushed to the on position. If the printer does not start, use the information in this section to isolate
and solve the problem.
If the control panel display remains blank, random patterns display, or asterisks remain on the control panel
display, perform power-on checks to nd the cause of the problem.
NOTE: For touchscreen control panel models, also try the control panel checks in the printer
Troubleshooting Manual.
108 Chapter 2 Solve problems ENWW