HP LaserJet 3052 Service Manual - Page 293

Table 6-10 Fax abbreviations (HP LaserJet 3050 all-in-one and HP LaserJet 3055 all-in-one only) Abbreviation CED CFR CIG CNG CRP CSI CTC CTR DBM DCN DCS DIS DTC EOM EOP EOR EQM ERR ECD FCF FCS FDM FIF FSK FTT GC Function Signal format ("X"= any #) Called station identification 2100 Hz Confirmation to receive X010 0001 1850 or 1650 Hz for 3 seconds Calling subscriber identification 1000 0010 Calling tone 1100 Hz for 500 ms Command repeat X101 1000 Called subscriber identification 0000 0010 Continue to correct X100 1000 Response to continue to correct X010 0011 -dBM signal strength detected from sending station (number is deviation from average value) Range in -7.5 to -43 (-43 is a weak signal; see the explanation that follows Figure 6-4 Example of a T.30 trace of a successfully received fax on page 277) Disconnect X101 1111 Digital command signal X100 0001 Digital identification signal 0000 0001 Digital transmit command 1000 0001 End of message X111 0001 1100 Hz End of procedure X111 0100 End of retransmission X111 0011 Eye quality monitor-a measure of the modem signal quality, lower numbers indicate better signals 0-99 Response for end of retransmission X011 1000 Facsimile coded date 0110 0000 Facsimile Frame check sequence File diagnostics message X011 1111 Facsimile information field Frequency shift key: Low-speed command identifier separating commands/scans; precedes command mode Failure to train: The 1.5 seconds of the Training Check Frame (TCF) indicates line conditions are not good enough for this modulation X010 0010 Group command 2100 Hz for 1.5 to 100 seconds ENWW Troubleshooting tools 273