Recently I bought an old Riso printer and connected it with a usb to parrallel cable to a laptop running on XP.
My current system, laptop on Vista, won't work with it since there are no up-to-date printer drivers available for post-XP operating systems.
A testprint last week worked out smoothly.
This week, however, XP won't open PDF or JPEG files properly.
The dimensions of the images, once opened, are different from the original: some images are cropped more than 5cm on all sides, others are compressed vertically, e.g. a square becomes a lying rectangle.
These files also fail to be sent to the printer.
Since the succesful testprint last week I can't imagine what could have changed in the set-up or configuration.
No updates were added in either Vista or XP.
Transferring files from one to the other laptop is done with the same usb sticks used for the testprint and they haven't been used in the period between testprint and failprint.
I have tested the usb connections in a couple different combinations using different ports, even disconnected the printer before plugging in the usb drives, but he results remain the same.
The laptop connected to the printer was an old one from a friend and has had several changes of operating systems. The last change was this downgrade from Windows 7 to Windows XP to only carry out these print jobs.
Besides Adobe Reader X, the printer driver and a printer program nothing has been installed on this computer and this was installed before the testprint.
On the Vista laptop nothing seems to be wrong with any of the files. I can view and work with them (e.g. Photoshop) like I've always done before.
I am new here and did some research before posting, but I'm not a tech geek nor native English speaker and might miss out on specific vocabulary to detect this problem.
I'd greatly appreciate any help on this one.