foo2zjs

foo2zjs [options] [raster_file]

-a
    Set printer attributes (e.g., resolution, color mode).

-d
    Set color depth in bits per pixel.

-f
    Specify the input raster format.

-p
    Specify the PPD (PostScript Printer Description) file.

-r x
    Set the horizontal and vertical resolution.

-z
    Enable/disable ZjStream features.

foo2zjs is a Linux command that serves as a raster to ZjStream printer driver.
It converts standard raster formats (like those generated by Ghostscript) into the ZjStream format, which is required by some laser printers, particularly those based on the Zenographics ZjStream page description language. This allows older or less common printers, which may not have PostScript or PCL support, to be used with modern Linux systems.
The driver usually works by intercepting print jobs and transforming the rasterized output into a format the printer understands. It often involves tasks like adjusting resolution, color depth, and other printer-specific settings to ensure correct output. The configuration settings are usually stored in PPD (PostScript Printer Description) files associated with the printer model and managed by CUPS (Common Unix Printing System).
Using foo2zjs effectively bridges the gap between generic printing systems and specific printer requirements, enabling printing on a wider range of devices.

The effectiveness of foo2zjs depends heavily on the quality of the PPD file for the target printer. Incorrect or missing PPD files can lead to printing errors or failures.
Some printers may require specific firmware versions or additional proprietary software for optimal performance.

Configuration is typically done via CUPS (Common Unix Printing System). Settings are often managed through the CUPS web interface or command-line tools, allowing users to select appropriate PPD files and adjust printer-specific options.

Common problems include incorrect PPD files, unsupported printer models, and resolution mismatches. Debugging often involves checking CUPS error logs, verifying PPD file settings, and ensuring the printer firmware is compatible.

foo2zjs was developed to support a specific range of printers that lacked native PostScript or PCL support. Its development was driven by the need to create a open-source solution for these printers using the ZjStream protocol.
Its use has decreased as printer manufacturers have adopted more standard printing languages, but it is still a valuable tool for using older or less common printers on modern Linux systems. Development started in the early 2000's.

ghostscript(1), cups(1), ppd(5)