Service manual

7020
No display. Loss of 24V DC output from the DC Power Supply. The DC Power Supply has
been replaced.
DESCRIPTION: SOLUTION ID:
103471
SOLUTION:
CAUSE: No 24V DC signal to the Main Relay.
SOLUTION: Repair loose wire at CN 25-A11 of the Main Driving board assembly (p/n 26NA-9022).
USAGE:
0
J30 in the morning when making a copy.DESCRIPTION: SOLUTION ID:
103633
SOLUTION:
CAUSE: A spring in the transfer/separation corona unit is contacting the shell of the corona unit.
SOLUTION: Check the springs (p/n 26NA26230) that hold the wires in place, and make sure that
they are not contacting the shell.
USAGE:
0
5.5x8.5R paper skewing.DESCRIPTION: SOLUTION ID:
104964
SOLUTION:
CAUSE: 5.5x8.5R paper may be caught by the paper exit guide causing skewing.
SOLUTION: Two (2) [[Conveyance Guide Sheets| URL
http://techweb.konicabt.com/tpm/media/7020conveyanceguidesheet.pdf]] (p/n 26NA51010) have
been added to the Paper Exit Guide Cover. The Conveyance Guide Sheets are installed in
machines with serial number 26NE07235 and above.
Note: To view the above PDF, Acrobat* Reader must be installed. Acrobat Reader can be
downloaded for free from the Adobe* Web site at:
[[http://www.adobe.com/products/acrobat/readstep2.html| URL
http://www.adobe.com/products/acrobat/readstep2.html]]
*[[Trademark ownership information| FILE V:\TEXT\TRADEMRK.TXT NEW]]
USAGE:
0
The ADU door does not close completely.DESCRIPTION: SOLUTION ID:
104992
SOLUTION:
CAUSE: The ADU positioning pin/front sometimes does not align properly with the hole in the main
body.
SOLUTION: [[The tip of the ADU positioning pin/front has been lengthened from 9.2mm to
15.6mm| IMAGE V:\bitmaps\cjc289.bmp SCROLL]]. Install the new ADU positioning pin/front (p/n
26NA50721) as needed.
USAGE:
0
J91-1 when duplexing.DESCRIPTION: SOLUTION ID:
105629
SOLUTION:
CAUSE: The green knob that is attached to the cleaning pad that is used for cleaning the
transfer/separation corona wires is missing.
SOLUTION: Replace the green knob (p/n 26NA26140) that is attached to the cleaning pad that is
used for cleaning the transfer/separation corona wires.
USAGE:
0
New drum for the 7020.DESCRIPTION: SOLUTION ID:
105690
SOLUTION:
The drum, item #950238, is no longer available for the 7020, 7025, and 7030. Please use Item
#950253.
Note: This is the same drum for the 7035.
USAGE:
0
DF314, original exit jams.DESCRIPTION: SOLUTION ID:
107648
SOLUTION:
CAUSE: When thin originals are copied under low humidity environment, static electricity may be
generated around the original, causing jamming.
SOLUTION: [[To neutralize the conveyance guide sheet, a conveyance neutralizing sheet (p/n
13GL4563) has been newly established and attached to the conveyance guide plate.| IMAGE
V:\bitmaps\cjc294.bmp SCROLL]] Install the conveyance neutralizing sheet as needed.
Note: The conveyance neutralizing sheet has been installed in DF314s with serial number
13GL67080 and above.
USAGE:
0
Setup Checklist, 7020.DESCRIPTION: SOLUTION ID:
108077
SOLUTION:
[[7020/7025/7030/7035 Setup Checklist in Adobe* Acrobat* format| URL
http://techweb.konicabt.com/tpm/media/7020checklist.pdf]].
Note: To view the PDF, Acrobat Reader must be installed. Acrobat Reader can be downloaded for
free from the Adobe* Web site at: [[http://www.adobe.com/products/acrobat/readstep2.html| URL
USAGE:
0
112
Copyright 2005, Konica Minolta Business Solutions U.S.A., Inc.
May 2005