På
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=110&prodSeriesId=28861&prodTypeId=18972&prodSeriesId=28861&objectID=bpl06494 kan man finde:
Post-image curl
When an HP LaserJet series printer prints a sheet of paper, the sheet develops a curvature called post-image curl. Generally, the higher the moisture content of the paper, the greater the curl. Higher weight equals higher curl. Both the paper and the printer affect the amount of post-image curl. In the papermaking process, stresses that can cause curl are manufactured into the paper, so different papers will have differing amounts of post-image curl. In the printing process, the paper is subjected to the heat and pressure of the fusing assembly as well as to the contours of the paper path. The following suggestions may help to reduce post-image curl:
Print to the face-up output bin. (This option is not available with some printers.)
Turn the paper stack over or turn it around in the input tray to reverse the direction of the paper.
When the printer is not in use for long periods, remove paper from the paper tray and rewrap it.
Change to a different type or brand of paper.
Follow the storage and handling specifications in this document.
On HP Color LaserJet series printers, reduce toner coverage by using dither patterns rather than solid fill.
The grain of the paper can affect the curl of the media. Try turning the paper over.
Det er stort set de ting du allerede har prøvet - men du kan selvfølgelig prøve at vende papiret...
På HP´s reservedelsbutik kan man bestille reservedele:
http://h20141.www2.hp.com/hpparts/lcl/DA/Search_Results.asp?mscssid=9GCMDNTWJ9GJ9HK28V57AMPU6BKGDS57Hvis ellers linket virker, kan 220v maintinance kit bestilles for kr. 2085,-
Men det er oven i købet ikke en 100% garanti for, at problemet forsvinder.
Man anbefaler at installere et maintinance kit for hver 150-200.000 udskrevne sider. Ved at holde "Stop" knappen nede, samtidig med at du trykker på den store, og følgende slippe begge igen, vil du få en oversigt over printerens konfiguration, og herunder antallet af udskrevne sider. Det giver en indikation af, om du er i nærheden (hvilket de færreste er :-)