Lexmark 11C0200 Service Manual - Page 86

Quality Pages This function causes the printer to print the Print Quality Test Pages. Once started, this operation cannot be canceled. All key presses are ignored while the Prt Quality Pgs Printing message is displayed. Clean Engine Test Use this test to perform a cleaning cycle on the engine specifically on the second transfer mechanism. The value list is YES and NO. To cancel the test, press Return or Stop. LCD Hardware Test This test causes the printer to continually execute the LCD display test. To cancel the test, press Return or Stop. Button Test This test verifies the operation of each button on the operator panel. When you select this test the following appears on the display: OP OP OP OP OP OP When you press a button, CL (closed) appears on the display. When the button is not pressed, OP (open) is displayed. If the wrong message displays, the button is malfunctioning. To exit the button test, press Return or Stop. The previous menu screen displays when the button is released. DRAM Memory Test This test checks the validity of DRAM (both standard and optional). The test involves writing patterns of data to DRAM to verify that each bit in memory can be set and read correctly. When this test is selected, the following screen displays and the printer begins testing DRAM memory for the first time: DRAM Memory Test P:###### F:##### Diagnostic Information 2-51