HP LaserJet Pro M1130 Service Manual - Page 123

Table 2-1 Basic problem solving (continued) Problem Cause Solution The product is on, but the control-panel lights indicate that the product is not in the "ready" state. The product has an internal error that was detected during the Power-On Self-Test sequence. Consult the list of controlpanel light patterns to identify and correct the error. The product is not "ready." The product turns on, the motor rotates, and the control panel indicates the "ready" state, but the product does not print. A component is defective. The product does not print. Perform an engine test to verify print-engine components. 1. Print an engine test page. See Engine-test button on page 107. 2. If the engine test page does not print, check all the connectors on the engine controller PCA, and reconnect any cables that are connected incorrectly. 3. If, after checking the connectors, the error persists, replace the engine controller PCA. See Engine controller PCA on page 94. The formatter is defective. Print a demo page. Select Demo Page from the Print Information Pages dropdown on the Services tab in the printer driver. If the Demo page does not print, replace the formatter. See Formatter PCA on page 68. ENWW Solve problems checklist 103