HP Designjet 2800/3800cp Service Manual - Page 93

D01. Electronics The purpose of this test is to verify the operation of the: D Electronics Module. D Hard Disk. D Line Sensor (only presence). D Trailing Cable. D Carriage Assembly. This test does not test the MIO Card. For testing the MIO Card, refer to the MIO Presence test ' page 4-23. IF POSSIBLE ALWAYS PERFORM THIS TEST BEFORE REPLACING THE ELECTRONICS MODULE, TRAILING CABLE, HARD DISK OR THE CARRIAGE ASSEMBLY. IF THIS TEST PASSES, DO NOT REPLACE THE ELECTRONICS MODULE, TRAILING CABLE, LINE SENSOR OR THE CARRIAGE ASSEMBLY. Perform the Electronics test as follows: 1 In the Diagnostics submenu, scroll to "D01 Electronics" and press Enter. Diagnostics D01 Electronics 2 The test will start and a row of "***" will be displayed on the front-panel. 3 After a short while the message "Access Printheads / Continue" will be displayed on the front-panel. Open the window and reseat all the Printheads. Press the Down Arrow when you have reseated the Printheads. 4 The test will continue and a row of "***" will be displayed on the front-panel. 5 If the test passes, the "D0100 OK" message is displayed on the front-panel. IF THIS TEST PASSES, DO NOT REPLACE THE ELECTRONICS MODULE, TRAILING CABLE, HARD DISK OR THE CARRIAGE. 6 If the test fails, an error message will be displayed on the front-panel. The error messages are split into different areas depending on which component failed. The test is continued on the next page. Service Tests HP DesignJet CP Series Printers 4-7