(57) A motor driven imprinter apparatus (1, 60) for imprinting from a credit card (59),
a date roller (12B, 70) and a merchants platen (12A, 69) onto a docket 61 comprises
a housing (2,62) and a carrier member (3,63) pivotally mounted to the housing (2,
62). The carrier member (3, 63) is pivotal from an open position for receiving a credit
card (59) and a docket (61), into a closed position where the data on the credit card
(59) and the docket (61) are brought into pressure contact with an imprint roller
(16, 77) which is driven by a motor (28, 99) through a chain and sprocket drive mechanism
(20, 95). The roller (16, 77) is releasably mounted in a side block (15, 78) and a
drive spud (23, 100) on one link of the chain (24, 96) engages an elongate slot (25,101)
in the block (15, 78) to pull the roller (16, 77) across the credit card (59) and
docket (61). In one case imprinting takes place on one pass across the apparatus (1)
only while in another case (60) imprinting from the credit card (59) to the docket
(61) takes place on a first pass and from the merchants platen (69) and date roller
(70) on a return pass. Means for locking the carrier member (3, 63) in the closed
position is provided by a locking bar (30, 105) which is loosely mounted in a pair
of spaced-apart cam brackets (31, 32, 107, 108). A pair of latch members (36,120)
extend from the carrier member (3,63) and engage the locking bar (30, 105) by means
of latch formations (37, 121) to retain the carrier member (3, 63) closed. The locking
bar (30, 105) is released by a trip release lever (41, 140) activated by a trip release
spud (43,143) on the chain (24, 96). Switch operating means to operate the motor (28,
96) comprises a link member (46, 130) which engages a microswitch (48, 137) to activate
and deactivate the motor (28, 96).
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