Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!hplabs!hpda!hpdslab!hp-ptp!davew
From: davew@hp-ptp.HP.COM (Dave_Waller)
Newsgroups: comp.sys.mac
Subject: Re: RE: HP Deskwriter Printing Volume
Message-ID: <1570004@hp-ptp.HP.COM>
Date: 14 Jul 89 18:50:16 GMT
References: <8903@venera.isi.edu>
Organization: HP Pacific Technology Park - Sunnyvale, Ca.
Lines: 55

kevinh@hpvcfs1.HP.COM (Kevin Hudson) writes:

> >By the way, is it strictly required to keep the limitation of the
> >MAXIMUM of 50 pages/day for a Deskwriter? 
> >What will happen if more than, say, 100 pages are printed at once?
> >Will it cause serious mechanical or electrical problems, or the Deskwriter
> >will make dirty output, or what else?
> 
> >Jungyun
> 
> To start off, the "limitations" are basically numbers that represent two
> things: First, they are the numbers that HP uses to generate projected 
> warranty and repair statistics. The only reliability concern with printing
> large daily amounts is that you will (statistically) have more repairs
> necessary per unit time than is indicated for those that use their printers
> within the described usage (gee, what a revelation). Second, the numbers
> are a guideline to help people decide if this is the right printer for them.
> For instance, larger and more frequent print jobs require that the printhead
> be replaced more often. If you anticipate printing 500-1000 pages a day, 
> expect to replace the printhead daily. This may be unacceptable for say, a 
> networked printer that is used by many people who have no idea when the
> printhead was last changed.
> 
> Kevin Hudson
> HP Vancouver Division
> (206) 896-2534
> ----------

BTW, it us worthwhile to point out that the 50 ppd value is NOT based on the
speed of the printer, but, as Kevin points out, consideration of average use
in order to make reasonable estimates of warranty repair costs per annum,
etc. If the printer were continously printing, it can print far more than 50
pages in one day. The Dwskwriter for that matter is also quite a bit faster
than the DeskJet, due to the improved driver and data compression. So the
guy with the PhD dissertation would be able to print out his 200 pages without
waiting 3 days.

Hey Vancouver (maybe Kevin), could you post the # of ppd for 1) DeskJet and
2) DeskWriter if either of these printer were confronted with continuous
printing?

Dave Waller
Hewlett-Packard Co.
Workstation Group
Pacific Technology Park
1266 Kifer Rd.
Sunnyvale, CA
(408) 746-5324
[ucbvax!]hplabs!hpdstma!dave | dave@hpdstma.ptp.hp.com
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