Appendix D-6 Product Overview Rev. A
Confidential
Platen open/close operation
The platen is attached to the platen lever by the platen gap adjustment screw. The platen open/
close operation is performed when a check is inserted and the MICR (option) is read. When the
lever coil is energized while the lever drive motor is being rotated, linkage of the lever ratchet
wheel to the paper feed trigger suction plate is released, and the lever drive gear rotates the
prescribed amount in the direction indicated by the arrow. This rotation is transmitted by the
lever drive transmission gear, rotating the platen lever open/close cam 180°. The platen lever
moves in the direction indicated by arrow a around the platen lever shaft, and the platen and
slip feed roller open (see the figure D-8). The MICR read operation is performed on the check at
this time.
To close the platen, the lever drive coil is energized again while the lever drive motor is rotated,
rotating the lever drive gear the prescribed amount in the direction indicated by the arrow. This
rotates the platen lever open/close cam 180°, and the platen lever is moved in the direction
indicated by arrow b around the platen lever shaft by the slip retainer spring. The slip feed
roller and slip retainer roller make contact at this time, closing the platen.
Figure D-8
Check paper
Platen lever shaft
Platen lever
Slip feed roller
Platen
Slip hold roller
Platen lever
drive cam
Lever drive
transmission
gear
Lever drive gear
a
b
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