HP LaserJet Pro P1606 HP LaserJet Professional P1560 and P1600 Series Printer - Page 23
Firmware, Memory use, PJL overview, LEDM overview - driver
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Firmware ● ● HP LaserJet Professional P1560 Printer series ◦ The product has 8 MB of Synchronous DRAM, which is used for run-time firmware imaging and specific print job information for the print job. HP LaserJet Professional P1600 Printer series ◦ The product has 32 MB of Synchronous DRAM, which is used for run-time firmware imaging and specific print job information for the print job. Memory use ● HP LaserJet Professional P1560 Printer series ◦ The product has a 2 KB EEPROM and 64 MB of NAND Flash Memory, which is used for product configuration information and printer driver firmware. ● HP LaserJet Professional P1600 Printer series ◦ The product has a 8 KB EEPROM and 64 MB of NAND Flash Memory, which is used for product configuration information and printer driver firmware. PJL overview The printer job language (PJL) is an integral part of configuration, in addition to the standard printer command language (PCL). With standard cabling, the product can use PJL to perform a variety of functions such as these: ● Two-way communication with the host computer through a network connection or a USB connection. The product can inform the host about such things as the control-panel settings, and the control-panel settings can be changed from the host. ● Dynamic I/O switching. The product uses this switching to be configured with a host on each I/O. The product can receive data from more than one I/O simultaneously, until the I/O buffer is full. This can occur even when the product is offline. ● Context-sensitive switching. The product can automatically recognize the personality (PS or PCL) of each job and configure itself to serve that personality. ● Isolation of print environment settings from one print job to the next. For example, if a print job is sent to the product in landscape mode, the subsequent print jobs print in landscape mode only if they are formatted for landscape printing. LEDM overview NOTE: HP LaserJet Professional P1600 Printer series The low-end data model (LEDM) provides one consistent data representation method and defines the dynamic and capabilities tickets shared between clients and devices, as well as the access protocol, event, security, and discovery methods. ACL overview The advanced control language (ACL) is a language that supports product control and firmware downloads in printers that support both PJL/PCL and host-based printing. Each sequence of ACL ENWW Formatter-control system 5