Brother International HL-1660E Service Manual - Page 78

1.2 Basic Procedure If a malfunction or incorrect print is appeared, make an initial check, then follow the basic procedure below: (1) Check the status display. If any message is shown, see Section 4 for troubleshooting. (2) If an incorrect image is found, see Section 3.1 to determine the defect type and Section 3.2 for image troubleshooting. 2. TEST PRINTING AND MECHANICAL CHECK 2.1 Test Printing If an image problem occurs, follow the procedure below to produce a test print. 1) Enter the offline mode. 2) Press the SHIFT and TEST switches simultaneously, so the printer enters the test print mode. 3) Press the or switch to appear the message "TEST PRINT" then press the SET switch. The message "05 TEST PRINT" will appear on the status display of the control panel and the DATA lamp will come on. Then, the printer will produce the test print. 4) Determine the image trouble type and see Section 3 for troubleshooting. TEST PRINT Figure 6.1 VI - 2