Lexmark Optra C710 Service Manual - Page 199

5016-001 3. Diagnostic Aids This chapter explains the tests and procedures to identify printer failures and verify repairs have corrected the problem. The following diagnostic aids can be initiated at POR by pressing certain button sequences. These tests are also available in Diagnostic Mode. Refer to "Diagnostic Mode" on page 3-4. Print Quality Test Pages To run the Print Quality Test Pages: 1. Turn the printer off. 2. Press and hold Select and Return, while turning on the printer. 3. Release the buttons once "Performing the Self Test" displays. 4. After POR completes, the CONFIG Menu displays. 5. Select Prt Quality Pgs from the menu; one copy of the test page prints. Paper Jam Sequence Go to the "Paper Feed Service Check" on page 2-68, for additional information. Paper Jam 201 - Indicates media is jammed between the paper pass sensor and the paper exit sensor. • Open the front cover to access the area of the paper jam. Notice the location of the paper jam. • Determine if media jammed prior to activating the paper pass sensor in the printer. The paper pass sensor may not be detecting media over the sensor, or media may be arriving late. • If the paper is jamming at, or over the paper exit sensor, the paper exit sensor may be failing. Go to the "Paper Exit Sensor Service Check" on page 2-67. Diagnostic Aids 3-1