If the copier was done 25000 copies it's finish works.
But it's fine and it could to work more.
The programme counter make on the chip memories Amtel 24c01, which stands on the right to the board.
The other memories like Xicor and Microchip is don't work.
For upgade of the resource of copier need to reprogrammed of this chip via programmed equipment.
Here's two programs.
The first program with process of installation. After power on the processor
interviews all blocks and writes their parameters in the counter.
All moved while 30-100 seconds.
Then the counter is in the start position.
The second program without installation. The counter is in start position
The program with installation is here.
The program without installation is here.