Canon iPF6100 - imagePROGRAF Color Inkjet Printer, Service Manual

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Chapter 2
2-16
2.2.6 Printhead Overheating Protection Control
0012-6501
This printer performs printhead overheating protection control when an abnormally high temperature is detected
in the printhead.
The printhead can overheat, for instance, when the print operation continues for some time with no ink supplied
to the nozzles.
The overheating protection control function prevents a print head nozzle from becoming clogged or damaged
due to excessive heat.
Overheating protection control is performed based on the temperatures detected by the head temperature sensors
in the nozzle arrays. If overheating is detected in a single nozzle array, overheating protection control is
performed at either of the following levels according to the temperature.
Protection level 1:
If the printhead temperature sensor detects a temperature above the limit, the carriage stops at the scan end
position printer in the direction of travel according to the carriage's scan status.
Then, wait control is performed to allow the printhead to cool naturally. When the printhead temperature drops
below the prescribed value or 30 seconds have lapsed since detection of the abnormal temperature, printing
resumes.
Protection level 2:
When the head temperature sensor detects an abnormally high temperature, printing stops immediately, the
carriage is moved to the home position, and the printhead is capped. In this case, an error code is shown on the
display.
2.2.7 Pause between Pages
0012-6502
To prevent ink blots form forming, this printer has a "pause between pages" function to hang down the printed
paper from the platen to dry it and delivers it after lapse of the specified wait time.
The user can set the wait time using the printer drive. This function is particularly useful for printing on film-
type sheets that requires extra long time to dry.
For borderless printing, 30 seconds of drying time is automatically set.
2.2.8 White Raster Skip
0012-6504
To improve the printing throughput, this printer has a white raster skip function to skip the carriage scan
operation for continuous blank segments in print data.
2.2.9 Sleep Mode
0012-6505
This printer has a Sleep mode to reduce the standby power.
The printer automatically enters the Sleep mode (Power Save mode) when neither user operation nor data
reception occurs for a preset period of time in the online or offline mode.
The printer wakes from the Sleep mode when the user presses any button on the operation panel or data is
received from the host computer.
The time until the printer enters the Sleep mode can be changed from the operation panel. (Default: 5 minutes)