Image Is Out Of Focus - Kyocera TASKalfa 1800 Service Manual

(13) Image is out of focus.

Print example
1. Table scanning
Defective part
Original document
1
Contact glass
2
Lens
3
CIS
4
Adjustment of the
scanner
5
CIS
6
Main/Engine PWB
7
2. DP-scanning
Defective part
Original document
1
Contact glass
2
Lens
3
CIS
4
Check description
Check whether the original
document is wavy.
Check whether the contact glass
is dew condensed.
Check whether the lens is dew
condensed.
Check whether the CIS glass is
dew condensed.
Check the automatic adjustment
of the scanner.
The CIS is defective.
The main/engine PWB is defec-
tive.
Check description
Check whether the original
document is wavy.
Check whether the contact glass
is dew condensed.
Check whether the lens is dew
condensed.
Check whether the CIS glass is
dew condensed.
If the original document is wavy, straighten.Or,
replace the original document.
If the contact glass is dew condensed, remove
the dew.
If the lens is dew condensed, remove the dew.
If the CIS glass is dew condensed, remove the
dew.
Perform maintenance mode U411,
table(Chart1)_All.
(see page 1-3-75)
Replace the CIS and perform U411.
(see page 1-3-75)
Replace the main/engine PWB.(see page 2-2-
11)
If the original document is wavy, straighten.Or,
replace the original document.
If the contact glass is dew condensed, remove
the dew.
If the lens is dew condensed, remove the dew.
If the CIS glass is dew condensed, remove the
dew.
1-4-59
2NC/2NF/2NG/2NN/3P7/3P8/3P9
Corrective Action
Corrective Action