HP 1200 HP PCL/PJL reference - PCL 5 Comparison Guide - Page 54

Table 2-3. PCL Feature Additions for HP LaserJet 4 (continued) Feature/Command Support Status Readback New Feature Location Type Command Location Unit Command New New Inquire Entity Command New Flush All Pages Command New Free Memory Command Echo Command New New Bezier Curve Commands New Label Origin Fill Polygon Modified Modified Macros Configuration Command Modified New Comments The addition of 6 new status readback commands enable the user to receive certain information back from the printer about fonts, symbol sets, macros, user-defined patterns, and available memory. Used to specify a status readback type of location (current, all, internal, downloaded, cartridge, SIMMs). Specifies a status readback location unit (all, temporary or permanent, highest-lowest priority, specific SIMM). Requests the status from the location (type and unit) specified for fonts, symbol sets, macros, or user-defined patterns. Allows the user to clear page data from printer memory. This command returns the current available memory. Allows the user to send a unique ID number to the printer to be used as a "place holder." HP-GL/2 commands (relative and absolute) that allow a user to draw complex curves with less data required than that required for arcs. Label position LO 21 is provided for correct alignment of HP-GL/2 text with PCL text. Previously, the HP-GL/2 Fill Polygon command filled polygons using the odd/even fill technique. A second technique, non-zero winding fill, has been added. HP-GL/2 is now supported in macros. Added to allow the user to communicate with the MIO card in the printer. 2-6 Printer-Specific Differences ENWW