Scan coordinates are incorrect for inner scan (Deskjet 2050)

[pqwoerituytrueiwoq]

This only seems to happen with the Deskjet 2050 J510 i never had this issue with my hp psc 2410xi photosmart nor do i have this issue with my Umax Astra 3400U
if i try to scan something in the middle of the scanner like this
scanimage -d "hpaio:/usb/Deskjet_2050_J510_series?serial=CN14D3N0PQ05D1" -l 63.810444444444 -t 87.02224002522 -x 63.810444444444 -y 91.436411620702 --resolution 75 --mode Color --format=ppm > "/tmp/scan_file1.ppm"
x1 (Left)
y1 (Top)
x2 (Right)
y2 (Bottom)

x1 and y1 are added to x2 and y2 when a scan is preformed this is incorrect behavior x2 and y2 as are they are the width/height of the scan not the distance from 0

A good way to demonstrate this is to scan 9 playing cards (Pokemon cards were the quickest thing i could find)
I have attached a picture showing what happens

on another note with this model the the bay width is reported as 297.011mm however you can not scan that far the most i can get is ~297.01068878173mm it has clearly been rounded but i think it should be rounded down so it will scan when you attempt to scan the maximum width

I can provide networked access to this scanner for a developer if it is needed upon request (do not do high resolution scans as my Internet upload speed is a pathetic 160 Kbps)