1.2.1 Line and uneven density countermeasure flow
(1) How to distinguish the line problem and uneven density problem
1. Conduct the gamma auto adjustment
[Service Mode]→[Process Adjustment]→[Drum Peculiarity Adj.]→[Auto gamma
adjustment]→ [Adjustment]→[Execute Adjustment Operation]→[Auto Gamma Adj.]
* Which method you take, there is no difference in operation.
2. Print the following test pattern using paper bigger than A3 size.
• No.43. Use the Dot1 screen.
• Select No.53, set the density of YMCK to 120 and print the 4 color gray.
• Select No.58 and set the density of MCK to 120. Use the Dot1 screen.
3. Check the print result of No.43, 53 and judge which of the following 4 patterns they apply.
(a) There is line on image in the paper feed direction.
(b) There is line on image crossing the paper feed direction
(c) There is no line but uneven density on the entire paper.
(d) Both line and uneven density can be seen.
(a) Line in the paper feed direction. (b) Line crossing the paper feed direction.
(c) No line but uneven density entirely. (d) Both line and uneven density exist.
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