HP Pro 4300 C9H70UT C9H70UT#ABA manual EconoMode, Input/output

	EconoMode
	The EconoMode setting uses up to 50 percent less toner than standard mode printing by
	reducing the dot density. However, EconoMode does not extend the life of toner cartridge
	components. EconoMode, which can be thought of as “draft mode,” can be selected from the
	control panel (print-quality menu) and through some software applications and printer drivers.
	The default setting is OFF.
CAUTION	HP does not recommend full-time use of EconoMode. If EconoMode is used full-time, it is possible
	that the toner supply will outlast the mechanical parts in the toner cartridge.
Note	EconoMode does not affect print speed or memory usage, or extend the life of the toner cartridge.

Input/output

Parallel interface

The formatter receives incoming data through its bidirectional interface (IEEE-1284). The I/O provides high-speed and two-way communication between the printer and the host, allowing the user to change printer settings and monitor printer status from the host computer. The user can configure the HIGH SPEED item in the control panel. The default setting, YES, makes it possible for the I/O to run at the higher speeds supported by most newer computers. When set to NO, the parallel interface runs at the slower mode that is compatible with older computers. The user can also configure the ADVANCED FUNCTIONS item. The default setting, ON, accommodates two-way parallel communications. The OFF mode disables the advanced functionality. The I/O is compatible with the bidirectional parallel interface standard.

Expanded I/O

The optional expanded I/O (EIO) card can be installed in the slots provided on the formatter. It provides automatic I/O switching between multiple computers or networks connected to the printer.

Flash

Optional flash is available in 2 MB and 4 MB flash memory DIMMs for storing forms, fonts, and signatures.

Hard-disk accessory

The optional hard-disk accessory can be mounted in one of the EIO slots on the rear of the formatter. The optional EIO-based hard disk is used for creating multiple original prints (mopies) and storing forms, fonts, and signatures.

CPU

The HP LaserJet 4200 series printer formatter incorporates a 300 MHz RISC processor. The HP LaserJet 4300 series printer formatter incorporates a 350 MHz RISC processor.

128 Theory of operation Q2431-90912