Canon iPF720 - imagePROGRAF Color Inkjet Printer, Service Manual

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Chapter 4
4-14
(9) To remove the head holder, press the lock pin located rearward to its left with a flat-blade screwdriver or similar object in the direction of the arrow mark.
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e. Reassembling the head holder
After the head holder has been reassembled, check that it lifts up and down in sync with the printhead height adjustment lever.
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f. Multisensor correction
Since multi sensor has individual electrical specificity, the following are recalibrated at the factory, namely, the optical axis of the sensor, the sensor gain for meas-
uring the printhead height and sensor calibration. Accordingly, carry out the following adjustments in the service mode whenever replacing the carriage unit or
multi sensor.
* The multi sensor reference plate(QL2-1738-000:BASE, MULTI SENSOR REFERENCE) must be replaced at the same time whenever the carriage or the multi
sensor is being replaced.
- Service mode : SERVICE MODE > ADJUST > GAP CALIB.
- Service mode : SERVICE MODE > ADJUST > PRINT PATTERN > OPTICAL AXIS
Media type : Photo glossy paper
Media size : Media having a width equal too larger than that of A2-size paper
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