Question about HP LaserJet 4700 Printer

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HP 4700 printer started out with intermittent 49.3048. Tried to replace formater bd and got 49.00ff error with new board. Put old bd back in, ptr booted ok and worked. Tried to do firm ware updat, and all worked just fine, printer rebooted, and stoped with a 49.00ff error. Replaced DC Controller and formatter bd, still came up to 49.00ff. 3 formatters and 1 dc controller, still same problem. HELP

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Try this
Remove all EIO devices and memory Dimm's execpt the firmware dimm.
Start the printer. If the error is gone then place the dimm's / EIO devices one by one.
(Don't forget to switch off the printer.)
If the error is still there then you might have a faulty firmware dimm.

Posted on Dec 29, 2008

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SC458 PTR pressure
mechanism H.P.
detection error
• When the PTR pressure
mechanism does not
stop its H.P. after 15
seconds from the PTR
lift motor starts to return
to its H.P.
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does not on within 7
seconds after the PTR
pressure movement
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Hope this is what your looking for
Thanks J

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