
Part 1: Facsimile
Ink empty detection
Ink empty detection during fax operation is performed by firing black ink
NOTE
between the light source and
of the ink sensor, located on the left side
of the printer. This function does
work with the BC-22, only with BC-21 or
BC-20.
When ink passes between the source and the receptor, as shown in Figure
the sensor output will be pulse waveform. The presence of ink may be
determined from the pulse generation time.
Ink empty detection is performed at the end of each received page of printing. If
ink is not detected on the first detection attempt, the ink nozzle is shifted
slightly, and the detection operation is repeated to double-check the first
detection operation. If it is determined that there is ink remaining, the image
data for that page will be erased from memory. If the cartridge is out of ink, the
message
“REPLACE CARTRIDGE”
will be displayed to inform the user that the
cartridge is out of ink, and the page will be “received” to memory again from the
image data.
The detection level of the ink detection sensor is adjusted automatically by
means of a feedback circuit, and thus requires no manual adjustment. If the
sensor output does not reach a standard
even after performing feedback
control (such as if
receptor is completely blocked, if a sensor defect
occurs), the ink sensor failure will be reported with the display of the
“CHECK
PRINTER” (error
code
message.
Signal sends to
PCNT board
Ink detect sensor
Figure 2-10 Ink Empty Detection
2-l 6
Содержание C5000 - MultiPASS Color Inkjet Printer
Страница 1: ...MultiPASS C5000 SERVICE MANUAL Canon ...
Страница 5: ...REVISION I CONTENT 0 I Original ...
Страница 26: ...Chapter 7 General Description 3 1 External View Front View Figure 1 3 External View 1 l 11 ...
Страница 27: ...Part 1 Facsimile Rear View Inside the Printer Cover Figure 1 4 External View 2 1 12 ...
Страница 28: ...Part 7 Facsimile 3 2 Operation Panel The Operation Panel Document feed lever 0 0 0 0 1 14 ...
Страница 34: ...Part 1 Facsimile ...
Страница 36: ...Part 7 Facsimile r w Units mm r 0 4 0 0 Figure l 13 Dimensions l 22 ...
Страница 57: ...Chapter 1 General Description 5 3 3 Print assembly BJ Cartridge _ Figure l 20 Print Assembly Precautions l 43 ...
Страница 65: ...Chapter 1 General Description Waste Ink absorber Figure 1 23 Waste Ink Absorber 1 51 ...
Страница 92: ...Part 7 Facsimile Figure 2 18 Printing Signals HQ Mode 2 24 ...
Страница 93: ...Chapter 2 Technical Refereno 6 1 Component Block Diagram Figure 2 19 Block Diagram 2 25 ...
Страница 150: ...Part 1 Facsimile Figure 3 28 Print Pattern Sample 3 48 ...
Страница 164: ... Part 1 Facsimile a 2 System dump list a STSrn DlYP LIST t t tf t Figure 3 35 System Dump List l 2 3 62 ...
Страница 184: ...Part 1 Facsimile U Vertical alignment Correction l l l l 3 7 ...
Страница 194: ...Part 2 Printer 3 1 Interface Connector 81 DIRECTIONAL PARALLEL PORT Figure 1 4 Interface Connector l 10 ...
Страница 212: ...Chapter 3 Maintenance Service See Part 1 Facsimile Chapter 3 Maintenance Service for details REFERENCE 3 1 ...