Canon ImageRunner iR8500 Series Service Manual page 951

Sub-item
NIP-CHK
<PANEL>
Sub-item
LCD-CHK
LED-CHK
LED-OFF
KEY-CHK
TOUCHCHK
<Input Key Numbers and Names>
COPIER > FUNCTION > FIXING
Use it to generate output for measuring the fixing nip width.
<Using the Item>
1) Make about 20 A4 prints using the test sheet.
2) Place A4 paper in the tray.
3) Select the item to highlight, and press the OK key.
- The paper will be picked up and is stopped between the fixing rollers once, and then
will be delivered in about 20 sec.
4) Measure the width of the area shaded in the figure.
Feed
direction
Standard:
|a-c|=0.5mm or less
a and b are measurements at 10 mm from either edge of paper.
COPIER > FUNCTION > PANEL
Checking the LCD display for missing dots
<Operating procedure>
1) Select this item and press the OK key to start operation. The front of the panel
lights repeatedly in order of white, black, red, green, and blue. (Check this lighting.)
2) Press the Stop key to terminate the operation.
Checking LED lighting in the operating section
<Operating procedure>
1) Select this item and press the OK key to start operation. The LED lamps light
sequentially.
2) Press LED-OFF to terminate the operation.
Checking LED lighting in the operating section
<Operating procedure>
1) Select this item to terminate LED-CHK operation.
Checking key input
<Operating procedure>
1) Select KEY-CHK to display the input key numbers and names.
2) Press a key to check. If the key is normal, the touchpanel displays the
corresponding key. (See the attached table.)
3) Select KEY-CHK again to exit from key input check.
Adjusting the coordinate positions on the analog touchpanel
<Operating procedure>
- Align the press positions on the touchpanel and the coordinate positions on the
LCD section.
- If the LCD section has been replaced, execute this service mode.
1) Select TOUCHCHK to reverse its display. Then press the OK key.
2) Press sequentially the nine positive signs (+) that appear on the touchpanel in
order.
Key
0 to 9, #, and *
Reset
Stop
User Mode
T-17-127
Description
Standard:
c
9.0mm±0.5mm
b
Middle of paper
a
T-17-128
Description
T-17-129
Screen Display
0 to 9, #, and *
RESET
STOP
USER
Chapter 17
Level
1
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1
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17-107