Automatic Gradation Correction Setting - Canon imagePRESS C1 P Service Manual

Chapter 2
el.
11) Press 'Start scan'. In a response, the test print 2 will be read.
12) When the control panel shows the message that orders removal of the test
print, remove the test print 2 from the copyboard glass.
13) Press 'Test print 3'. In a response, the test print 3 will be printed.
14) Place the test print 3 on the copyboard glass by following the control pan-
el.
15) Press 'Start scan'. In a response, the test print 3 will be read.
16) When the control panel shows the message that orders removal of the test
print, remove the test print 3 from the copyboard glass.
17) Exit from 'Additional Functions' screen.

2.2.38 Automatic Gradation Correction Setting

imagePRESS C1 P / imagePRESS C1+ (Printer)
1) Select Initial Additional Functions > System Settings > Device Manage-
ment Settings > Auto Gradation Adjustment.
MEMO:
When attaching the reader (accessory) at the same time, there are selections
available to execute as an auto gradation correction method from 'Auto
Gradation Adjust Method': either 'Printer Only' or 'Scanner + printer'.
2) Select 'Full Adjust'.
3) Select the source of paper for test print and press 'OK'.
4) Press 'start'.
5) Exit from 'Additional Functions' screen.
2.2.39 Checking a Clear Color Image
imagePRESS C1+ (Printer) / imagePRESS C1+
1) Set paper (A4/LTR) in the cassette 1.
2) Select a service mode item (COPIER > TEST > PG > TYPE) and enter 14.
3) Select a service mode item (COPIER > TEST > PG > F/M-SW) and enter
3.
4) Press the [Start] button and perform a test print.
Print a 5-full-color 16-gradation test pattern, and make sure that there is no
color mixture in the clear area [1].
2.2.40 Checking Image / Operation
imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / image-
PRESS C1+
1) Place the test chart (CANON CA-1 TEST SHEET) on the copyboard.
Feed paper from each cassette and check the image.
- Check to be sure that there is no unusual sound.
- Check to be sure the image quality with each default magnification.
- Check to be sure that the behavior to print the specified number of sheets
is normal.
- Check to be sure that the image printed from each cassette is within the
2-70
range of the standard value.
There are 2 standard values as follows:
Standard value of left margin of image: 2.5 +/- 1.5 mm
Standard value of margin along leading edge of image: 3.0 +1.5/-1.0 mm
When the value is not within the standard value, refer to 'Adjusting left
margin of image' or 'Adjusting margin along leading edge of image'.
In the case of image fault (vertical/horizontal lines), see the item for
'cleaning the charging assembly'.
0013-7865
2.2.41 Adjusting Left Margin of Image
imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / image-
PRESS C1+
Adjusting methods of left margin of image in accordance with each pickup
slot are described below.
1. Adjusting Method of Cassette
1) Press the cassette release button, and pull out the cassette toward the front.
2) Open the upper right cover and the lower right cover.
3) Insert the screwdriver from the hole of the right front crossmember. Loos-
en the screw [1] and adjust the position of the adjusting plate [2].
0020-4624
Move the slide guide toward the rear = left margin decreases
Move the slide guide toward the front = left margin increases
4) Tighten the screw.
5) Close the upper right cover and the lower right cover.
6) Put back the cassette.
7) Check to be sure that the left margin of images printed from each cassette
are within L1 = 2.5 +/-1.5 mm.
[1] Feeding direction of paper
2. Adjusting Method of Manual Feed Tray
1) Open the manual feed tray.
2) Slide the side guide plate[1] in the direction of the arrow.
0012-7687
3) Loosen the screw [1], and adjust the left margin of image by moving the
[2]
[1]
F-2-229
[1]
image
L1
F-2-230
[1]
F-2-231
0012-9075