HP 8550mfp Service Manual - Page 503
Stkr: Call, Service, Error 06, Output, device, failure
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Table 55. Hardware malfunctions in the stapler/stacker Event Control panel log error User messages message LED Stkr: Call 66.13.35 Solid Service or amber Stkr: 66.23.35 Error 06 66.13.35 or 66.23.35 Output device failure Stkr: Call 66.13.36 Solid Service or amber Stkr: 66.23.36 Error 06 66.13.36 or 66.23.36 Output device failure Stkr: Call 66.13.37 Solid Service Stkr: or amber 66.23.37 Error 06 66.13.37 or 66.23.37 Output device failure Service Recommended LED Description action Blinking The controller PCA Power cycle the red is damaged. printer and the (six blinks) computer. -Or- If the problem persists, ROM has been corrupted. replace the controller PCA. Blinking The controller PCA red is damaged. (six blinks) -Or- The C-link register is damaged. Power cycle the printer and the computer. If the problem persists, replace the controller PCA. Blinking The controller PCA red is damaged. (six blinks) -Or- The DAC (digital-to- analog converter) is damaged. Power cycle the printer and the computer. Replace the controller PCA. Replace the flipper assembly. EN 3,000-sheet stapler/stacker troubleshooting 501
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