Chapter 2: Technical Reference
Reading color documents
When scanning a line of color
LED’s are sequentially lit: first Red, then
Green, then Blue. The corresponding image data
line are then read and stored to
memory. The Red, Green and Blue LED’s are mounted on the white LED board at the right
side of the contact sensor. The light emitted from
LED’s passes through the optical
guide, where it is reflected, gathered.
at the document.
During color copying, the SCNT board’s Color Image Processing IC UC
the
data
in memory for each
color generate print image data for the colors Cyan,
Magenta, Yellow, and Black CMYK data Generation of CMYK data is independent
from the reading contact sensor data.
data generation is slower than the
reading process, reading is halted until
data generation is completed.
When using the unit as a color scanner,
Red, Green and Blue data which were scanned
and stored to memory are converted to
data and sent to the PC via the Centronics
interface.
8.1.3 Reading black white documents
When scanning black and white
Green and Blue LED’s are lit
sequentially for
the duration used
color
providing illumination equivalent
to the
duration of white light.
G 8.
Figure 2-23 Contact Sensor
2-35
Summary of Contents for C5000 - MultiPASS Color Inkjet Printer
Page 1: ...MultiPASS C5000 SERVICE MANUAL Canon ...
Page 5: ...REVISION I CONTENT 0 I Original ...
Page 26: ...Chapter 7 General Description 3 1 External View Front View Figure 1 3 External View 1 l 11 ...
Page 27: ...Part 1 Facsimile Rear View Inside the Printer Cover Figure 1 4 External View 2 1 12 ...
Page 28: ...Part 7 Facsimile 3 2 Operation Panel The Operation Panel Document feed lever 0 0 0 0 1 14 ...
Page 34: ...Part 1 Facsimile ...
Page 36: ...Part 7 Facsimile r w Units mm r 0 4 0 0 Figure l 13 Dimensions l 22 ...
Page 65: ...Chapter 1 General Description Waste Ink absorber Figure 1 23 Waste Ink Absorber 1 51 ...
Page 92: ...Part 7 Facsimile Figure 2 18 Printing Signals HQ Mode 2 24 ...
Page 93: ...Chapter 2 Technical Refereno 6 1 Component Block Diagram Figure 2 19 Block Diagram 2 25 ...
Page 150: ...Part 1 Facsimile Figure 3 28 Print Pattern Sample 3 48 ...
Page 184: ...Part 1 Facsimile U Vertical alignment Correction l l l l 3 7 ...