HP 3015 Service Manual - Page 273
Table 6-6. Fax phase sequence HP LaserJet 3015 and 3030 only continued
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ENWW Table 6-6. Fax phase sequence (HP LaserJet 3015 and 3030 only) (continued) Sequence Calling station Called station 7 DIS detected Phase B-Pre-message procedure (negotiate compatible format/protocol) (HP LaserJet 3015 and 3030 only) 8 Transmit TSI 9 Transmit DCS, select mode 10 DCS detected 11 Transmit TCF/training 12 Transmit FSK 13 Training (synchronize signals), check for errors 14 Transmit CFR 15 Detect CFR Phase C-Message transmission (page/scan transmission) (HP LaserJet 3015 and 3030 only) 16 Transmit message (FSK, followed by date) 17 Receive message (SCAN), check for errors 18 Transmit FSK 19 At end of message, send one of the following: ● EOM ● EOP ● MPS ● PRI-Q ● PPS-NULL ● PPS-MPS ● PPS-EOM ● PPS-EOP ● PPS-PRI-Q Phase D-Post-message transmission (next page/end of transmission) (HP LaserJet 3015 and 3030 only) 20 Detect EOM, EOP, MPS, PRI-Q, PPS-NULL, PPS-MPS, PPS- EOM, PPS-EOP, or PPS-PRI-Q 21 Transmit MCF response to confirmation signals of post- message responses Phase E-Call release (hang up sequence) (HP LaserJet 3015 and 3030 only) Troubleshooting tools 255