HP LaserJet 4 Service Manual - Page 415

Memory Configuration Menu Table B-15 Memory Configuration Menu Items Item I/O BUFFER I/O SIZE RESRCSAVE PCL MEM PS MEM Options AUTO* OFF ON 10K and up AUTO* OFF ON 0K and up Explanation Memory set aside for I/O buffering is automatically determined by the printer. No memory is set aside for I/O buffers. Size can be manually adjusted. When IO BUFFER is set to ON, this item appears in the menu. Press - Value + to add or reduce I/O buffer memory in increments of 0 KBytes up to 100 KBytes, then in 100 KByte increments. Appears when a certain amount of memory and a personality SIMM are installed in the printer. Enables or disables Resource Saving. Printer automatically determines the amount of memory to allocate to each installed personality. No memory is allocated. Additional memory management item selections appear. Increases memory for each installed personality. * Indicates factory default. LaserJet 5/5M/5N Printer B-21