Canon IMAGERUNNER 7086, Service Manual

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Chapter 17
17-48
<CCD>
T-17-33
<LASER>
T-17-34
COPIER > FUNCTION > CCD
*: model equipped with DADF-Q1 (outside Japan: iR7105/7095; inside Japan: All model).
**: model equipped with DADF-M1 (outside Japan: iR7086).
Sub item Description Level
CCD-
ADJ Use it to execute CCD auto adjustment.
1
<Procedure>
1) Place 10 or more sheets of paper on the copyboard glass. (Make sure the paper is the whitest
of all used by the user but is not one for color printing).
2) Select 'CCD-ADJ' to highlight, and press the OK key.
3) See that auto adjustment takes place (about 15 sec), during which 'ACTIVE' appears in the
upper right of the screen.
4) See that the LED (scanning lamp) goes on twice in the course of the adjustment and the
screen indicates 'OK!' to end the adjustment.
5) All items under COPIER > ADJUST > CCD will be updated. Print out a service sheet for
future reference.
LUT-ADJ
* Use it to execute CCD gain abridged correction.
1
<Procedure>
1) Select the item, and press the OK key so that auto adjustment takes place.
2) See that adjustment ends automatically.
3) The items under COPIER>ADJUST>LAMP, COPIER>ADJUST>CCD in service mode
are updated. Print out a service sheet for future reference.
DF-
WLVL1
**
DF-
WLVL2
** Use it to adjust the ADF white level.
1
<Procedure>
1) Place paper on the copyboard glass, and execute DF-WLVL1. (Make sure that the paper is
a type used by the user.)
-> The machine will read the white level used for copyboard mode (i.e., checks the
transmissivity of the copyboard glass).
2) Place paper in the ADF, and execute DF-WLVL2. (Make sure that the paper is a type used
by the user.)
-> The machine reads the white level used for ADF stream reading mode (i.e., to check the
transmissivity of the stream reading glass).
Be sure to execute the foregoing always in combination in the correct order, i.e., DF-WLVL1
and then DF-WLVL2.
LUT-
ADJ2 * Use it to fine-adjust the CCD gain.
2
Use it if the difference, if any, in density cannot be corrected using LUT-ADJ (CCD gain
abridged correction).
<Procedure>
1) Place the 10-gradation chart (D-10 Test Sheet) on the copyboard glass.
2) Select the item, and press the OK key so that auto adjustment takes place.
3) See that the machine ends the adjustment automatically.
4) The items under COPIER > ADJUST > LAMP, COPIER > ADJUST > CCD are updated.
Print out a service sheet for future reference.
COPIER > FUNCTION > LASER
Sub item Description Level
POWER-
A/B/C/D Use it to turn on the laser (A, B, C, D).
1
<Procedure>
1) Select the item, and press the OK key.
2) See that the laser goes on, and 'STRWT' -> 'ACTIVE' appears.
3) See that the laser goes off in about 60 sec automatically and 'OK!' appears.