Konica Minolta DF-502, Service Manual, Page: 38 / 52

5. Service Mode Field Service Ver. 1.0 Apr. 2005
16
DF-502
Adjustment / Setting
5.2.2 FUNCTION
A. ADF FEED TEST
B. COPY ADF GLASS AREA
Purpose/Use • To check for correct paper passage of the paper take-up and transport system in the
Automatic (Duplexing) Document Feeder alone as a single unit.
• Here are the details of operation involved in the paper passage motion.
• The Scanner does not make any scan motion.
• Paper passage operation continues until all pages of the document loaded in the
unit have been fed in.
✽
When a paper misfeed of originals occurs
Setting/
Procedure <Step>
1. Load paper in the ADF.
2. Press the Start key to start the ADF feed test.
✽
Press the Stop key to stop the ADF feed test.
Purpose/Use To check for scratches and dirt on the Original Scanning Glass.
✽
When a dirty image occurs
Setting/
Procedure <Step>
1. Place a gray chart (OD = 0.3) on the Original Glass.
2. Press the Start key to start the Copy ADF Glass Area test.
3. The Scanner moves from its standby position to a point 2 mm to the left of the Origi-
nal Scanning Glass.
4. The Scanner moves to the right to start a scan motion.
5. The copier produces two copy samples (in order to know dirt on the glass from
printer image noise).
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