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HP LaserJet 4250 and 4350 Series Printers - Installing and Using Memory Features
This document explains the memory features of the printer and provides steps for expansion.
The printer comes with one dual inline memory module (DIMM) already installed. One additional DIMM slot and two CompactFlash slots are available for upgrading the printer with the following items:
Single inline memory modules (SIMMs) used in previous HP LaserJet printers are not compatible with the printer.
The printer also has two EIO slots for expanding the printer's capabilities with a mass storage device, such as an optional hard disk for storing forms and fonts, and for certain job-storage functions. The EIO slots can also be used for adding a wireless connections, a network card, or a connectivity card for serial or AppleTalk.
Some HP LaserJet 4250 or 4350 series printers come with a network device already installed. The EIO slot can be used to provide networking capabilities in addition to those already built into the printer.
To find out how much memory is installed in the printer, or to find out what is installed in the EIO slots, print a configuration page.
Installing printer memory
You might want to add more printer memory to the printer if you often print complex graphics, print PostScript (PS) documents, or use many downloaded fonts. Added memory also gives you more flexibility in supporting job-storage features, such as quick copying.
Static electricity can damage DIMMs. When handling DIMMs, either wear an antistatic wrist strap or frequently touch the surface of the DIMM antistatic package, then touch bare metal on the printer.
The HP LaserJet 4250 or 4350 series printers come with one DIMM installed in slot 1. A second DIMM can be installed in slot 2. If desired, you can replace the DIMM installed in slot 1 with a higher-memory DIMM.
If you have not already done so, print a configuration page to find out how much memory is installed in the printer before adding more memory.
Up to two CompactFlash cards can be installed to add additional fonts to the printer.
To install a CompactFlash card
Use Device Storage Manager in HP Web Jetadmin to manage fonts. For more information, see the Help in HP Web Jetadmin.
Checking memory installation
After installing the DIMM or CompactFlash card, make sure that the installation was successful.
To verify that DIMMs or CompactFlash cards are installed correctly
If you installed a printer language (personality), check the "Installed Personalities and Options" section on the configuration page. This area should list the new printer language.
Saving resources (permanent resources)
Utilities or jobs that you download to the printer sometimes include resources (for example, fonts, macros, or patterns). Resources that are internally marked as permanent remain in the printer memory until you turn the printer power off.
Use the following guidelines if you use the page description language (PDL) ability to mark resources as permanent. For technical details, see an appropriate PDL reference for PCL or PS.
Over-using permanent resources or downloading them while the printer is printing might affect printer performance or the ability to print complex pages.