Io Image (Ioca) - Océ imagePRESS C7010VPS series Technical Manual

IO image (IOCA)

Introduction
The Canon imagePRESS C7010VPS series support the following IOCA function sets:
• FS 10, used for monochrome bi-level images,
• FS 11, used for multilevel gray or full colour images,
• FS 40, tiled version of FS 10 (rarely used),
• FS 42, obsolete format, created for an old type IBM-printer. Low quality: avoid using this
format,
• FS45, used for B/W and full process colour printers.
IOCA Images can be downloaded at the beginning of the job as data object resources. The IPDS
command Include Data Object (IDO) is used to include the images on pages or in overlays. IOCA
Resource Objects can also be pre-RIP'd in home state, which may improve the performance. This
RPO function for IOCA images and Object Containers is not supported by all printers.
IOCA FS 10
All the SRA printers support the full FS 10 function set. The following compression algorithms
can be used:
• IBM MMR
• No Compression
• RL4
• ABIC (bi-level ABIC, also known as ABIC-Black)
• G3 MH
• G3 MMR
• G4 MMR (Fax 4)
• PackBits
Supported functions in addition to the standard FS 10 set:
• Unpadded RIDIC
• Multiple Image Contents (MIC)
• Scale-to-Fill mapping
• Set Bi-level Image Colour SDF
• Set Extended Bi-level Image Colour SDF
• X'70' Presentation Space Reset Mixing Triplet
• X'4E' Colour Specification Triplet (background colour for the presentation space)
The FS 10 format is only used for bi-level, monochrome images. The images can either be printed
in black or with a single highlight or full process colour, i.e. monochrome.
IOCA FS 11
The IOCA Function Set 11 is a super set of FS 10; multilevel grey and full colour image formats
are added.
Additional commands in FS 11:
• 8 bit/IDE uncompressed gray images: an old legacy format, avoid using this format.
• JPEG Baseline DCT - Huffman coded: Gray 8 bit/IDE or full colour 24 bit/IDE. This is the
standard JFIF/JPEG format.
• JPEG Extended Sequential DCT - Arithmetic coding, JPEG Progressive Sequential DCT -
Arithmetic coding: better compression format than Huffman but slower to compress. Hardly
used.
imagePRESS C7010VPS series v2.2
IO image (IOCA)
Chapter 14 - SRA IPDS 329