05/2014
4-103
DC SC2020
Disassembly/Assembly and Adjustment
18. Electrical
Version 1.1
ADJ 18.1.1 IOT Lead Edge/Side Edge
Registration
Purpose
To align the image on the drum with the proper position (Lead/Side
Edge) of the paper.
Check
1. Load A4 paper into the Tray in SEF orientation.
2. Enter the CE Mode and select [Printer Diag] -> [Test print]>
[Grid2 ESS].
3. Pressing the [Start] button prints the [Grid2 ESS].
4. Measure the Lead and Side Edges of the print pattern.
• Lead Edge: Part A of the pattern
• Side Edge: Part B of the pattern
Figure 1 j0fu40237
5. Check that the measured values of the Lead Edge (A) and
Side Edge (B) fall within the corresponding specifications.
NOTE: To perform measurement for the Lead Edge (A) and
Side Edge (B) of Duplex printout, load the [Grid2 ESS] that was
output on the Platen and make a 1 -> 2 Sided copy to perform
the measurement.
Adjustment
1. Enter the CE Mode.
2. Adjust the NVM until each measured value of the Lead Edge
(A) and Side Edge (B) fall within the specifications of the corre-
sponding mode.
• If the measured value is short: Set a larger value.
• If the measured value is long: Set a smaller value.
3. Output [Grid2 ESS] in the same mode after adjustment.
4. Repeat the procedure until the measured values of the Lead
Edge (A) and Side Edge (B) fall within the specifications.
Table 1 IOT Lead Edge/Side Edge
Item Simplex Duplex MSI
Lead Edge (A) 10 +/- 2.1
mm
10 +/- 2.5
mm
10 +/- 2.7
mm
Side Edge (B) 10 +/- 2.2
mm
10 +/- 2.6
mm
10 +/- 3.1
mm
Table 2 NVM List
Chain-
Link Name Min
Initia
lMaxStep
742-041 Lead Regi Adjustment
(ALL)
0 80 160 0.126mm
742-042 Lead Regi Adjustment
(Tray1)
0 40 80 0.126mm
742-043 Lead Regi Adjustment
(Tray2)
0 40 80 0.126mm
742-044 Lead Regi Adjustment
(MSI)
0 40 80 0.126mm
742-061 Lead Regi Adjustment
(Duplex)
0 40 80 0.126mm
742-001 Lead Regi Adjustment
(ALL)
-50 0 50 0.105mm
742-002 Side Regi Adjustment
(Tray1 Side1)
-50 0 50 0.105mm
742-003 Side Regi Adjustment
(Tray2 Side1)
-50 0 49 0.105mm
742-006 Side Regi Adjustment
(MSI Side1)
-50 0 50 0.105mm
742-021 Lead Regi Adjustment
(Duplex)
-50 0 50 0.105mm
742-022 Side Regi Adjustment
(Tray1 Side2)
-50 0 50 0.105mm
742-023 Side Regi Adjustment
(Tray2 Side2)
-50 0 50 0.105mm
742-026 Side Regi Adjustment
(MSI Side2)
-50 0 50 0.105mm
Table 2 NVM List
Chain-
Link Name Min
Initia
lMaxStep