New Konica bizhub C351 copier with only 58 copies. It will make copies but it has a 6 1/8" x 8 5/8" BLACK area in the center of the 8 1/2" x 11" copy if you make a copy from the platen glass. It does not do it if you print from the printer function. It does the same on both color and black and white on reduction or enlargement.We have changed the PWB-A "CCD" board, PCB-C board, ribbon cable that connects the two and the large cable that connects PCB-C down to the machine and still the same problem. If someone could call me @ 828.896.8888 we would be glad to compensate them for their services to help resolve this.

Gray box after installation.
Solution
CAUSE: Installation procedures were not completed properly.
SOLUTION: Complete the installation procedures thoroughly:
1. Adjusting Touch Panel - Press the Accessibility key, Touch Panel Adj.
2. Setting Gradation Adjustment - Go into Service Mode, Image Processing Adjustment, Gradation Adjustment. Service mode- ulilty/counter, check details , then(Stop00 stop01)
3. Touch High Compression Mode and press Start [perform 3 times].
4. Touch Gradation Mode and press Start [perform 3 times].
5. Touch Resolution Mode and press Start [perform 3 times].
6. Date/Time Setting - go into Service Mode, Press Stop, 1, 1, 4, 4, Clear.
7. Go into Utility/Counter, Administrator Setting, System Setting, Date/ Time Setting.
8. Install Date - go into Service Mode, System 1, Install Date.
9. Serial Number Input - go into Service Mode, System 1, Serial Number [If Serial Number is already there, Clear and re-enter it].
10. Unit Change - go into Service Mode, System 2, Unit Change.
11. List Output - Please Load 8.5x11 Landscape paper on Tray 1, go into Service Mode, List Output, and Touch Machine Management List and press Start.
12. Press Adjustments List and press Start.
13. Press Service Parameter List and press Start.
14. Press Fax Setting List and press Start.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f