Hi Wei,
We have an HP4000N on our Varian INOVA300, and I do not recommend it for
any application. This model seems to have a problem in the toner cartridge
design that results in an unwanted pattern on one side of the page due to a
dirty roller inside the toner cartridge. The problem crops up after a
cartridge has been in for a while, but is not yet out of toner. Because
the dirty roller is inside the cartridge, you can't clean it and have to
replace the cartridge prematurely before it is out of toner.
Regards,
Jerry
===+++===
Jerry Hirschinger, NMR Instrumentation Engineer
Purdue University Interdepartmental NMR Facility
1393 Wetherill Labs, rm. 365A
West Lafayette, IN 47907-1393
Phone: (765) 494-5288
FAX: (765) 494-0239
email: hirsch@purdue.edu