Edges Of Objects Are Blurred - Oki IP-7900-21 Advanced Operation Manual

Edges of objects are blurred.

Basic image
Cause
[Symptom A]
The ink dries too slowly.
l
The ink is ejected excessively.
l
[Symptom B]
The print head position is
l
misaligned.
The bidirectional print position is
l
misaligned.
[Symptom C]
The media advance
l
compensation is not proper.
[Symptom C]
The media advance accuracy is
l
poor, or is not stable.
64
IP-7900-20/21/7700-20/21 Advanced Operation Guide
[Symptom A]
[Cause]
The ink dries too slowly.
The ink is ejected excessively.
(1) Decrease the all three heaters by 5°C.
* Before starting the print, ensure that the heater temperature was decreased to the
target temperature.
(2) Set smart pass to a higher setting.
(3) Change the print mode to be slower.
(4) Print in unidirectional mode.
(4) If density is set to "HIGH DENSITY", change it to NORMAL. (
(5) Use the proven media.
(6) With the RIP software, apply the profile with the low ink amount ejected.
* Note that the hue may change by decreasing the ejected ink amount.
(1) Adjust the print head position. (
(2) Adjust the bidirectional print positions. (
Adjust the media advance compensation.
* The media advance compensation differs depending on the winding mode, LOOSE or
TENSION.
(1) Check that the media was installed properly with the conditions below.
- The installed media is properly parallel to the Printer and the flange.
- The operation panel shows the media type correctly.
- The supply-side tension bar length is proper and it is placed on the center of the
media.
- The media winding mode is optimal to the installed media.
- If the media is curled or wrinkled, see the description on the problem, "The media is
curled or wrinkled. "
(2) Adjust the pressure on the media with the pressure control knob.
(3) Set smart pass to a higher setting.
(4) Change the print mode to be slower.
[Symptom B]
[Cause]
The print head position is misaligned.
The bidirectional print position is
misaligned.
Solution
*1
*1*2
*1*2
page 96 )
page 88 )
*1*2
*1*2
[Symptom C]
[Cause]
The media advance
compensation is not proper.
page 35 )
*1