Printer
Case study : Hewlett Packard LaserJet 4 Plus
Output Hardware (Printers)
Overview | Features | Using the control panel | Paper |
Environmental factors
Hewlett-Packard
![[HP Laser4 back - Parts]](../../v2gr/v2gr_hw/prnlj4b1.gif)
![[HP Laser4 paper path]](../../v2gr/v2gr_hw/prnlj4pp.gif)
- 12 page per minute printing
- true 600 dpi resolution
- Resolution Enhancement Technology (REt) which adjusts the size and placement of each dot
to smooth angles and curves.
- Microfine toner to sharpen the appearance of text and graphics
- PCL 5 (Printer Control Language).
- Standard 2Mb memory may be expanded to 16Mbytes.
- Memory Enhancement technology (MEt) automatically compresses data to print complex
pages.
- Automatic switching between I/O ports and between PCL 5 and Postscript (if installed)
- 35 scalable Intellifont typefaces and 10 true type typefaces within the printer.
![[HP Laser4 control panel]](../../v2gr/v2gr_hw/prnlj4cp.gif)
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Printing a test page.
- Press [On Line] to take the printer off line
- Press [Menu] until TEST MENU appears
- Press [Item] until the test you want to print appears, eg SELF TEST
- Press [Enter] to print the test
- Press [On Line] to place the printer back on line.
To continue printing if a page size error occurs
- Press [Shift] + [Continue]
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- 75g/m2 xerographic paper recommended
- 135g/m2 max for MP Tray
- 105g/m2 max from cassette
- 90g/m2 max with duplex option
Paper Guidelines
Do not use
- rough, very smooth or embossed paper
- paper with cutouts or perforations
- papers printed at low temperatures
- coloured paper that are not compatible with the printers fusing temperatures (200degC
for 0.1 sec)
- paper with ragged edges
- short grain paper, increases curl and feeding problems.
![[HP Laser Printer]](../../v2gr/v2gr_hw/hwprnhpl.gif) |
Ozone emissions
- Printers use charging rollers in the toner cartridge and in the print engine, rather
than high voltage corona wires in the electrophotographic process, so generate no
measurable ozone gas (O3)
EPA Energy Star Computers Award
- Drops from 300 W when printing to 80 W in standby, to 28.5 W in Power save mode.
Environmental Specifications
- Temperature
Operating 10o to 32.5o C
Storage/Standby 0o to 35o C
- Relative Humidity
Operating 20% to 80%
Storage/Standby 10% to 95%
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[Rev 14/2/98] 27/7/97 © 1997-98 V/2-Com
(Verhaart), P O Box 8415, Havelock North, New Zealand.
![[HP Laser4 front - Parts]](../../v2gr/v2gr_hw/prnlj4f1.gif)
![[Reference]](../../v2gr/v2gr_00/b_ref.gif){kind=small}