Adj1. 1. 12 Iit Vertical/Horizontal Magnification - Panasonic DP-C321 Service Handbook

ADJ1. 1. 12 IIT Vertical/Horizontal Magnification

Purpose To correct the horizontal (fast scan)/vertical (slow scan) magnification ratio for a 100%
copy.
Try to avoid performing this procedure. This procedure should be performed only
when the actual IIT magnification is not correct.
Before performing this procedure, make sure that the IOT horizontal/vertical
magnification ratios are correct.
Check
1. Place the Test Chart (499T247) on the Platen Glass correctly and make a copy in the
following copy mode:
• Copy Mode: Black
• Document Type: Text/Photo
• Paper: 11 x 17"
• Magnification: 100%
• No. of Copies: 2
2. Check the 2nd copy for the following: (Fig. 1)
Refer to Fig. 1 and 2 for this procedure.
(1) At Horizontal magnification: (Fig. 1)
Check that the distance between the two points is 200 ± 1 mm or the same as the
dimension on the Test Chart.
If the value is not within the specified range, adjust it following the steps below:
(2) At Vertical magnification: (Fig. 2)
Check that the distance between the two points is 300 ± 1.5 mm or the same as the
dimension on the Test Chart.
If the value is not within the specified range, adjust it following the steps below:
2-19
(Fig. 1)
(Fig. 1) j0mf40956
(Fig. 2)
(Fig. 2) j0mf40957
Adjustment
Horizontal Magnification Adjustment
This adjustment may cause the following secondary problems:
• Deterioration of resolution because of the ASIC digital correction.
Chapter 2 Maintenance