HP 350, 330 manual 38Problem Resolution

COMMUNICATION ERROR CODES (Continued)

TRANSMIT ERRORS (500 level codes continued) – Code numbers not listed are not used

CODE	DESCRIPTION	COMMENTS
526	Irrelevant response	The response received following the DCS + training was
		valid (expected CFR).
531	Irrelevant response	The response received following the transmission of M
		EOP, EOM was incorrect. Check diagnostic bits 11 and 12.
532	DCN received	DCN was received in a response to the transmittal sign
		Check diagnostic bits 11 and 12.
533	Line disconnect	Receiver sent DCN and dropped the line after waiting 3 s
		onds for a received frame or the line signal was gone
		than 0.2 seconds.

534No response on all retries The connection was lost either because the line was d or the receiver hung up.

535	Fallback impossible	Fallback in the transmission of post messages is not p
		Remote receiver does not respond with a RTP or RTN or t
		transmitter can’t retransmit. If the session is non-EC
		the receiver responded RTN after the sending unit sent
		page, the sending unit will train down to a slower spe
		the next page. After 2400 baud fails, the unit cannot tra
		down any slower and reports error code 535. In ECM mod
		the error might be possible, but the sequence would b
		ent (not using RTN).

536At least one page not confirmedOccurs in non-ECM mode when there are many errors on page. The page received was not readable.

541	Phone disconnected	The user has disconnected the line after the voice ses
		without continuing the fax session.
542	Time-out	The T3 operator intervention timer has expired.
543	Irrelevant response	The response received after the transmission of a voic
		quest to the remote sender was not a DIS.
551	DCN received	DCN was received in a response to the transmitted sign
		Check diagnostic bits 11 and 12.
552	Line disconnect	Receiver sent DCN and dropped the line after waiting 3 s
		onds for a received frame or the line signal was gone
		than 0.2 seconds.

553No response on all retries The connection was lost with the receiver either beca line was lost or the receiver hung up.

554	Irrelevant response	The response received following the transmission of P
		NULL, PPS-MPS, PPS-EOM was incorrect. Check diagnos-
		tic bits 11 and 12.
555	Fallback impossible	System is unable to receive a valid ECM transmission a
		baud rate.
		(Continued on next page)

5-38Problem Resolution