Table 16-1 Memory Status Request Example (continued)

Status response sent from printer to host

PCL

INFO MEMORY TOTAL=100000 LARGEST=25000

Entity Status

It is possible to request status for the printer’s entities. An entity is a font, symbol set, macro, or user-defined pattern stored in the printer. Each individual entity request is limited to one specific entity, and is further limited to a specific location. To request entity status, you must send the entity status readback commands to identify a location type and a location unit, and then send the entity request command.

Location type refers to the memory locations which store entities. These memory locations include internal ROM, RAM (for downloaded entities), cartridges, user-installable ROMs (SIMMs), and one additional location identified as “currently selected.“ Currently selected identifies the entity which is active, such as the font or user-defined pattern last selected. (Currently selected does not apply to macros or symbol sets).

Location unit refers to a specific location (or device) within the location type. For example, location unit “1” for location type “cartridge,“ identifies the left cartridge on a printer with two cartridges; or, unit “1” for location type “downloaded,” identifies the temporary fonts (as opposed to permanent).

The location type and unit are described in detail under the location type and unit status readback command descriptions provided later in this chapter.

Once the location type and unit are specified, the status can be requested using the Inquire Status Readback Entity command. This command identifies the entity (font, symbol set, macro, or user-defined pattern) and causes the printer to send the response.

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Introduction 16-3

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HP 5961-0509 manual Entity Status, Status response sent from printer to host, PCL Info Memory TOTAL=100000 LARGEST=25000