LPTjoy interface (designed by Petr Sumbera)

       [ CANON 25 MALE ]                   [ CANON 9 M ]

(acknowledge)  10 ........................... 4  (right)
(busy)         11 ........................... 3  (left)
(out of paper) 12 ........................... 2  (down)
(select)       13 ........................... 1  (up)

(error)        15 ........................... 6  (button)

(strobe)        1 ........................... 7  (Ucc)
(ground)       25 ........................... 8  (ground)