Canon FAX-L1000 - Manual (Page 523)

5-165
FAX-L1000 Chapter 5: Appendix
Layer 5
Message Description Remark
CSS Command Session Start The first thing sent when layer 5 is started.
Canon mode communication parameters
are mainly added to this command.
RSSP Response Session Start Sent when CSS is received and layer 5 can
Positive be started. Canon mode communication
parameters are mainly added to this
command.
RSSN Response Session Start Sent when CSS is received and layer 5
Negative cannot be started.
CSE Command Session End Sent when layer 5 is completed.
RSEP Response Session End Reply for CSE.
Positive
CSCC Command Session Change Sent when it becomes layer 5’s turn to
Control transmit. This is used by polling
communications, etc.
RSCCP Response Session Change Reply for CSCC
Control Positive
CSUI Command Session User Indicates that there is a document
Information procedure command.
RSUI Response Session User Indicates that there is a document
Information procedure response.
CSA Command Session Abort Sent when the session procedure is halted.
RSAP Response Session Abort Reply for CSA.
Positive
CDS Command Document Start Sent when the document procedure is
started. States the size and resolution of
pages that are able to be transmitted to
CDE.
CDE Command Document End Sent when the document procedure is
completed.
RDEP Response Document End Reply for CDE.
Positive
CDPB Command Document Page Sent when it is shown that there is a gap
Boundary between pages. A check point reference
nunber is added as a parameter.
RDPBP Response Document Page Sent when a page designated as CDPB is
Boundary Positive OK. A check point reference number is
added as a parameter.
RDPBN Response Document Page Sent when a page designated as CDPB is
Boundary Negative NG. A check point reference number is
added as a parameter.