2L6/2N6/2N5/2N4-6
1-4-272
(16) Grainy image.
2
Paper Check if paper is of high surface
resistance.
Change the paper to another.
Print example Cause of trouble
1. Installation at a high altitude.
2. Using the paper with high surface resistance.
Defective part Check description Corrective Action
1
Developer unit The device is installed in an
altitude higher than 1500 m sea
level.
If the device is installed in an altitude higher
than 1500 m sea level, perform the following.
1. 30 ppm / 35 ppm devices
Press maintenance mode U140 and select
in order to change the setting.
(Default/ 1000m/ 2000m/ 3000m/ 4000m)
2. 45 ppm / 55 ppm devices
1)After switching from "0" to "+1" in "Type"
"Execute" and press the start key.
(High altitude grain mode)
2)When image levels thin does not improve
even if following the above procedure,
change setting of "High Altitude" in Mode2.
(see page 1-3-99)
2
Paper Check if paper is of high surface
resistance.
Change the paper to another.
Defective part Check description Corrective Action