6,648,284 B2 discloses an adjustment insert block within a items storage trough that has a base surface and a number of upright side walls that are connected with the base surface of the items storage trough. The problem of a high stack being at risk of tipping over exist for postcards of different formats, but not for postcards that are all of the same format. A forward side wall can be opened like a door in order to remove the stack of mail pieces (postcards, for example). Such a box of smaller dimensions is known from JP 2000063026 A, for example. The stacker device is unsuitable to accept a larger quantity of mail pieces in an ordered fashion.Ī stacker device for a larger quantity of stacked mail pieces is described in the following using the term “stack box”. However, the intake quantity of mail pieces of the stacker device is marginal.

A device for transferring mail items to a stacker device is known from EP 985 619 B1. In the field of franking machines, solutions are known that transport a mail piece downstream (in terms of mail flow) in the transport direction so as to print with a franking imprint during the transport. The term “stack” in the following means a letter stack, postcard stack, mail piece stack or other stacked articles or stacked items that can be individualized, and will be supplied lying on their sides. The stacker device for a flat good is provided for a use in connection with items processing devices that precede the stacker device, such as mail processing stations in connection with franking machines, addressing machines and other mail processing stations.Īs used herein, the term “mixed mail” means mail pieces of similar format that differ within boundaries of up to 10% in height and width, for example letters of the B6 (12.5×17.6 cm) and C6 (11.4×16.2 cm) formats. A stack of mail pieces of different formats (mixed mail) that has been placed at the placement station is individualized in the mail line by an immediately following (in the transport direction) separator device of a feed station, since further following mail processing stations require individually supplied mail pieces. At the start of the mail line, a placement station may be designed that serves to place individual or stacked mail pieces, which are transported downstream (in terms of mail flow), through additional stations until the end of the mail line, at the stacker device. A mail line of a franking system is composed of individual mail processing stations arranged serially, and the flat items are mail pieces. Stacker devices of the above type are used in items processing systems or as a last station of a mail line, for example. The invention concerns a stacker device for flat items of the type having a receiving plate on which the flat items accumulate in a stack, a stop wall that stops movement of the flat items through the stacker, and a longitudinal wall against which the accumulated items rest in the stack.

BACKGROUND OF THE INVENTION Field of the Invention The present application is a continuation-in-part of co-pending application Ser.

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