HP 2425 - Manual (Page 141)

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Before calling, be sure you have the answers to these questions
handy to help our technicians serve you more quickly:
1 What is your printer model and serial number?
2 What kind of host computer do you have?
3 What operating system do you have and what version?
4 What interface are you using and what protocol?
5 What application are you using?
6 What is the emulation of the file you're trying to print? In
what emulation mode is the port?
7 What is the firmware revision number for your printer? (It is
listed on both the status and start-up pages.)
8 If you can print, have a status page available.
Your service representative needs to know these things prior to help-
ing you.
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