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HP DeskJet 450
Color inkjet printer, max. 4800x1200 dpi, works Perfectly
Recommended Driver: hplip (Home page)
Generic Instructions: CUPS, no spooler


Portable printer, currently the best portable on the market. The "ci" model comes without and the "cbi" with rechargeable battery.

For basic printing functionality use the HPIJS driver . For advanced functionality such as printer status and maintenance features, use the HPLIP driver (which includes HPIJS).

Connection via parallel port, USB, and fast infrared. Bluetooth optional

The printer has a reader for Compact Flash memory cards, but no facility to choose the images to be printed. One needs a camera with DPOF (Digital Print Order Format) for PC-less photo printing.

The best printout quality you will get with the HPLIP driver, provided by HP (compatible to the HP DeskJet 990C), especially the 1200-dpi high resolution mode gives excellent photo quality (the rendered bitmap is 1200x1200 dpi, but the printer hardware does an interpolation then and prints with the printer's highest resolution). Also the Gimp-Print driver is reported to work (Model setting: "pcl-900").

When used with HP's HPLIP driver, this printer auto-detects the ink cartridge type and does appropriate dithering and colour adjustment internally, controlled by the hardware. So when Ghostscript with the HPLIP driver only renders the image with 300 or 600 dpi, higher resolutions are used for the internal dithering. So if you insert a photo cartridge, the printer automatically switches to the 6-ink process.

Note that in contrary to most other current HP inkjet printers there is no paper type sensor in the printer. You have to choose one of the photo modes manually when using photo paper. There are photo modes with 300 and 600 dpi and a special high resolution photo mode where the image is rendered in 1200 dpi and interpolated to 4800x1200 dpi by the hardware.

There is also no full-bleed mode as the other printers of the same generation (DeskJet 555x, OfficeJet 61xx, PSC 2xxx, PhotoSmart 7xxx) have, but the unprintable margins are smaller when using the photo/card/envelope feeder.

Consumables/Refills: One Color(CMY) and/or one Black(K) or Photo (cmK)


The following driver(s) are known to drive this printer:

Recommended driver:

hplip  (driver home page)
HP's driver suite for printers and multi-function devices
Supplier: Hewlett-Packard (this printer's manufacturer)
License: MIT/BSD/GPL (free software)
User support:HPLIP support and bug tracking system (voluntary)
Max. rendering resolution: 1200x1200dpi   Color output   Type: CUPS Raster
Text:||||||||||  100Graphics:||||||||||  100System Load:Unknown
Line Art:||||||||||  100Photo:||||||||||  100Speed:||||||||||  70

Other drivers:

gimp-print  (driver home page)
This driver is obsolete. Recommended replacement driver: gutenprint
This driver is free software.
Type: CUPS Raster

gutenprint  (driver home page)
Top Quality Printer Drivers for inkjets, dye sublimation printers, and PCL lasers
Supplier: Gutenprint project
License: GPL (free software)
User support:Gutenprint mailing list at SourceForge (voluntary)
Color output   Type: CUPS Raster
Text:||||||||||  90Graphics:||||||||||  100System Load:Unknown
Line Art:||||||||||  90Photo:||||||||||  100Speed:||||||||||  60