Path: csiph.com!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Boris Newsgroups: comp.periphs.printers Subject: Re: HP 3755 Printer, Black Ink Mystery Date: Fri, 27 Dec 2024 05:59:42 -0000 (UTC) Organization: A noiseless patient Spider Lines: 48 Message-ID: References: Injection-Date: Fri, 27 Dec 2024 06:59:45 +0100 (CET) Injection-Info: dont-email.me; posting-host="9b96885cc14cea41c77710a0bf8d5a8c"; logging-data="3634036"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/Eslv6R+mfmVgy6SNeb9BP" User-Agent: Xnews/2006.08.24 Cancel-Lock: sha1:xXrjUCKvKEO9rXO+XRRfDGpZvkw= Xref: csiph.com comp.periphs.printers:4709 Tony wrote in news:part1of1.1.#oXtwiQt3MA89g@ue.ph: > Boris wrote: >>Printer is an HP DeskJet 3755. It uses a tri-color cartridge, and a >>black cartridge. It's connected to various Windows computers via a >>Netgear router. Connection is fine. >> >>The black cartridge is empty, as demonstrated by the fact that when >>printing a 'Test page', all that is printed is the blue printer icon, >>and also in blue, the words "Windows Printer Test Page". >> >>When printing any multi-color document, all colors are printed, but >>nothing black, such as text, appears. OK, it's out of black, but... >> >>If I use the printer's control panel to print out internal reports >>such as "Printer Information Page", or "Printer Status Report", which >>are in black text, these reports are printed perfectly in black. >> >>How is this possible? >> >>Hmmm...print jobs issued from Windows don't print black, but print >>jobs issued internally from the printer's control panel do print >>black. >> >>I downloaded and ran HP's Print and Scan Doctor for Windows. It said >>it corrected a printer issue (it didn't identify the issue), and then >>went on to check ink and printing quality, such as alignment and >>cleaning printheads. The result was that colors were fine, alignment >>was fine, but it didn't print out any black patterns, saying that the >>black cartridge was empty. >> >>So, HP's own diagnostic verified black ink was empty. >> >>But where does the black ink come from to print the internal reports, >>perfectly? >> >>Any ideas? > If the black cartridge is empty then the only way that the printer can > print black is to use the colour cartridges. That is probably what is > happening. The printer is probably designed to combine the colours to > print black for internal reports. Tony, you may have been correct. I finally got around to getting a new black cartridge (the printer is 3 hours away from where I normally reside, thus the long time to reply). Once installed, the printers is working beautifully. It prints black (and all colors) perfectly. Thanks for the reply.