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As far as I know, the 2 infrared sensors are in the multisensor? This is a diagram from the service-manual.Originally Posted by blackcat4866
Multi_Sensor.jpg
Are the infrared-LED/-sensors just used for calibration or also to detect loaded paper? Is it possible that the infrared-sensor or LED is dead but it still detects the paper because for detection only the RGB-LEDs are used?
Sorry I don't know that. =^..^=
If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=
Hmm... Maybe I can get another sensor and just replace it.
do you see this lights ?
Canon imagePROGRAF MULTI SENSOR for media detection, alignment and profile setting on new PRO series - YouTube
which paper you use for calibration? i hope not the clossy paper.
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Yes, I can see the lights. But it could still be possible that the infrared-emitter is dead which seems to be needed for calibration (at least if the service manual is correct).
I tried all of the papers i mentioned a few pages back - none of them worked.
Or is plain paper not good enough for calibration?
There are two sensors not only one:
4.3.13 Head Management Sensor
a) Removing the head management sensor
1) Remove the screw[1], disconnect the connector[2], and then remove the head management sensor[3].
b) Procedure after replacing the head management sensor
Since the distance between the head management sensor and the carriage unit varies among printers, the optical axis is factory-adjusted to adjust the non-discharging
detection position. When you have replaced the head management sensor or performed assembly/reassembly of surrounding parts that can change the distance between
the head management sensor and the carriage unit, reasjustment is required.
Peform the readjustment in the service mode.
Service mode : SERVICE MODE > ADJUST > NOZZLE CHK POS.
4.3.14 Multi Sensor
a) Removing the multi sensor
1) Remove the screw[1], disconnect the flexible cable[2], and then remove the multi sensor[3].
Since multi sensors have individual electrical specificity, the following are recalibrated at the factory, namely, the optical axis of the sensor, the sensor gain for
measuring the printhead height and sensor reproduction. Accordingly, carry out the following adjustments in the service mode whenever replacing the carriage unit
or multi sensor.
* The multi sensor reference plate must be replaced at the same time whenever the carriage or the multi sensor is being replaced.
* When replacing the carriage unit, refer to Adjustment and Setup > Procedure after Removing or Replacing the Carriage Unit.
- 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 toor larger then that of A2-size paper
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You only can contact me if you click my name on a post and select PRIVATE MESSAGE straight from there.
I did NOZZLE CHK POS. which ended with "END CHECK" (so no errors here(?)).
Also I dont think that this sensor should be involved in the automatic adjustment? But I'm open to be corrected there.
I did both GAP CALIB. (ended with CHECK END) and the OPTICAL AXIS, the print looks like the example in the service manual.
Is there another possibilty to adjust the head manually?
Also, another question: Would it be correct to select D1 / 20 here? As far as I understand it would be the "most wrong" of them all, is that correct or am I misunderstanding the process of adjusting? It should look more like D2 / 0, right?
Rows.pdf
Last edited by zerosquared; 2 Weeks Ago at 02:02 PM. Reason: Picture too small
You missunderstood... D1 / 20 is the most best.
If you enlarge the printout and scroll from D1 / 20 to D1 / 0, the middle line moves to the left.
If you scroll down from D2 / 0 to D2 / 20, the middle row moves to the right.
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