Abstract: The invention concerns a device comprising a belt with one side opposite unsprung support means and extending between an upstream roller and a downstream roller both suspended so that the object can be sandwiched between the unsprung support means and said belt side, the latter being wound around at least two other rollers whereof at least one is unsprung.

Abstract: A document feeder employs a lifting lever to lift stacked documents away from a feed roller each time a document is being fed away from the stack. In this way the separation of documents is enhanced, providing a mechanism that more readily accommodates documents of varying shapes, thicknesses, and materials. The feeder uses a motor linked by one-way clutches to feed mechanisms for documents and for labels, stacked separately. The motor is driven in one direction to feed documents and in the other direction to feed labels. A moistener is provided below the paper path, and the moistener is mounted so that it can be slidably removed. When it is removed, feed rollers are permitted to relax and move apart which helps in the clearing of jams.

Abstract: A postage meter (franking machine) uses a digital print head such as an ink-jet or thermal transfer or dot-matrix print head, for which it is necessary to know the velocity of the mail piece passing by the print head. Two collimated monochromatic beams strike the mail piece, one at an angle leading the mail piece velocity and the other at an angle lagging the mail piece velocity. The beams converge yielding a sensing region filled with a diffraction pattern. The mail piece, assumed to be rough at a scale that is appropriate for the velocity measurement, moves at some velocity. A detector detects light intensity (photon flux) at a small region within the sensing region, and the intensity signal has a frequency that is proportional to the mail piece velocity. The frequency is detected or measured, the instantaneous velocity is derived therefrom, and the velocity is used to control the print head.

Abstract: A postage meter has a locking cam follower so that locking arms on the print wheels of the postage meter are able to lock the wheels from unintended movement when the print rotor is out of its home position. Stiff runners are provided below guide rods of setting racks in the rotor so that the racks cannot be displaced away from the value wheels. A sensor is placed on the rotor cover with the meter software set up to keep a print cycle from starting if the cover is open. A cam on the rotor makes it impossible to open the cover when the rotor is out of the home position. A latch holds the cover shut, and the only way the latch can be released is if the meter software releases it, for example by sliding a rack to a position that triggers the latch. Cogs and cog teeth are used instead of gears and gear teeth to reduce the possibility of unintended movement of the value wheels. Rotating disks lock the racks when the rotor is not in the home position.

Abstract: A postage meter (franking machine) is provided having a limited number of physical (mechanical) keys associated with frequently performed tasks, and a touch-sensitive display of limited size with regions associated with rarely performed tasks. Optionally a receiving area is provided which can receive a printed sheet, and a touch-sensitive area is juxtaposed with the sheet, permitting user selection of items on the printed sheet. By means of a scrolled display of subsets of a character set, the user may readily create text strings on the touch-sensitive display of limited size. A history is kept of frequently selected print parameters, and the user can scroll through a list derived from the history.

Abstract: In a postage printing device, a printer is employed to print postage indicia on mail pieces. The printer is preferably a noncontact printer such as an ink-jet printer. Printing occurs as the mail piece moves relative to the print head of the printer, which requires that reliable motion information (e.g. a print clock signal) be made available to the electronics driving the print head. The reliable motion is provided in a noncontact way, preferably by directing a laser beam toward the mail piece and detecting a moving speckle pattern in the light scattered from the mail piece.

Abstract: A mail piece handler defines a paper path having a downstream direction. A first motor is mechanically coupled with the mail piece handler, and an encoder is operatively coupled with the mail piece handler. A mail piece sensor is positioned at the paper path, and a print rotor is positioned at the paper path downstream of the mail piece sensor, the print rotor having a print surface. A second motor is mechanically coupled with the print rotor, and an electronic controller is communicatively coupled with the encoder, with the mail piece sensor, and with the second motor, the controller disposed in the event of sensing of a mail piece by the mail piece sensor to control said second motor so as to cause the print surface of the print rotor to move at substantially a speed measured via the encoder.

Abstract: A postage meter has a locking cam follower so that locking arms on the print wheels of the postage meter are able to lock the wheels from unintended movement when the print rotor is out of its home position. Stiff runners are provided below guide rods of setting racks in the rotor so that the racks cannot be displaced away from the value wheels. A sensor is placed on the rotor cover with the meter software set up to keep a print cycle from starting if the cover is open. A cam on the rotor makes it impossible to open the cover when the rotor is out of the home position. A latch holds the cover shut, and the only way the latch can be released is if the meter software releases it, for example by sliding a rack to a position that triggers the latch. Cogs and cog teeth are used instead of gears and gear teeth to reduce the possibility of unintended movement of the value wheels. Rotating disks lock the racks when the rotor is not in the home position.

Abstract: A date-setting method for use in a postage meter having date wheels includes the steps of setting the date wheels, printing a date on a mail piece, requesting an input indicating whether the date printed on the mail piece is correct, receiving a response in the negative, receiving information indicative of the date printed on the mail piece, resetting the date wheels, logging a record indicative of the negative response and the resetting action, printing another date on a mail piece, requesting an input indicating whether the date printed on the mail piece is correct, receiving a response in the negative, receiving information indicative of the date printed on the mail piece, resetting the date wheels, logging another record indicative of the negative response and the resetting action; and annunciating the records indicative of negative responses.

Abstract: A postage meter has an improved means of monitoring the position of the cover providing access to the print rotor. A mechanical latch and associated mechanism is provided responsive to a cam on the print rotor and responsive to the movement of the cover, and the mechanism has an electrical sensor output to the processor of the postage meter. In the event that the cover is opened at a time when the rotor is away from its home position, for example at a time when the power to the meter has failed, the latch enters a latched state. Upon the restoration of power the meter determines if the rotor is away from its home position, and if it is, the meter inspects the sensor output to determine if the latch has been caused to enter its latched state. This condition is annunciated, for example by rendering the meter incapable of printing postage.

Abstract: A postage meter has a secure housing, an accounting register within the secure housing, and a print rotor the rotation of which defines a paper path. The rotor axle is formed of two halves, and within the two haves is a lengthwise cavity along which setting racks are capable of axial movement. The racks engage with print wheels at one end and are accessible to the main body of the postage meter at the other end. Each rack engages with its value wheel in a rack-and-pinion engagement. The axle halves are made of plastic and they snap together. The racks slide within grooves, and are held in place with pins. The axle has journal bearings and a thrust bearing defining its movement relative to the secure housing. A worm gear in the housing engages a worm wheel in the rotor to bring about rotation of the rotor for the printing of postage.

Abstract: In a communications system, a host computer in a data center communicates with a multiplicity of electronic postage meters via telephone dial-up lines to conduct telemeter setting (TMS) transactions. Through the communications, the host computer may collect statistical data from each meter, and may impose a cumulative postage amount limit, a time limit and/or a piece limit on the meter. To ensure security and data integrity, the communicated data between the meters and the host computer is selectively encrypted and/or authenticated.

Abstract: A postage meter has a print rotor rotated by a motor and the motor is capable of being started and stopped under processor control. State variables are established within a nonvolatile memory. The rotor begins in its home position. When a mail piece such as a letter is detected by a letter sensor, the processor sets a state variable. At some point (either before loss of power, or after restoration of power) the postage value to be printed is booked into the accounting register. The rotor motor is started. At some point (either before loss of power, or after restoration of power) the rotor reaches its home position again. A state variable is cleared. In this way, it is possible, even after the loss and restoration of power, to distinguish between a rotor that is in its home position because it has not yet printed postage (but needs to do so) and a rotor that is in its home position because the printing of postage has been completed.

Abstract: A postage meter has the print rotor and platen within a single secure housing, with a letter detection lever along the paper path downstream from the rotor. The letter detection lever is in a spring-loaded coupling relationship with the trigger that triggers franking. If a letter remains in the meter due to a paper jam, the detection lever continues to be actuated and the spring-loaded coupling keeps the trigger in the triggered position. The meter further comprises a platen carrier moving the platen toward and away from the rotor; when the rotor is in its home position a radial cam on the rotor and cam follower keep the carrier away from the rotor. When franking of a letter begins and the rotor begins to rotate, the rotor cam releases the cam follower, permitting the carrier to move up in spring-loaded relation toward the rotor. A letter stopper is in the paper path downstream from the rotor and helps to align the letter so that the postage imprint is optimally oriented on the letter.

Abstract: A postage meter has a secure housing and a printing means and accounting register within the secure housing. Formed in the secure housing is postal lock. In the postal lock, a door is movable between first and second positions relative to a cavity. When the door is closed (in its first position) it renders the cavity inaccessible, and when the door is open (in its second position) it renders the cavity accessible. The door has a latch. The latch is spring-loaded so that it engages a latch feature in the cavity and holds the door closed. Pushing the latch the other way (against the spring) causes the latch to engage a pawl in the cavity, and the pawl tends to push the door open. A protruberance on the rear of the door engages a locking gear in the cavity. The locking gear allows separation of two halves of the meter housing, or holds the two halves together. If the locking gear is in the position that permits separating the halves, then the door cannot be closed because the gear abuts with the protruberance.

Abstract: A computer system for protecting memory comprising a processor having address outputs and executing a stored program, a memory having a control input, an address-decoder for providing a control signal to the control input of the memory in response to associated address outputs from the processor, and a window circuit. The window circuit comprises a range detector responsive to the address outputs for generating a range-detection signal indicative of an address from the processor being within a protected range, the protected range non-identical to the entirety of the space of addresses within the memory. Access to memory locations within the protected range is permitted only if a request signal is received from the processor. If the request signal is asserted for an unexpectedly long time an error condition is annunciated, for example the processor is reset.

Abstract: A self-contained postage meter does not have a base separable from a main body. The single secure housing contains everything that would be in the main body of a prior art postage meter and everything that would be in a prior art meter base. Despite containing all these things, the single secure housing is small enough and light enough in weight to permit the entire meter to be readily transported to the post office for inspection or resetting. Within the single secure housing are the print rotor with value wheels, all the mechanisms for setting the print wheels, the descending and/or ascending register and associated microprocessor, and all the mechanisms for transport of the mail piece through the meter. Only a handful of controlled elements are required, chiefly a single inexpensive DC motor for franking and value wheel setting and a few electromagnets.

Abstract: An optical trigger is provided for use in a postage meter having a planar paper path. A light source with controllable intensity is mounted above the paper path and shines toward the paper path. A light sensor mounted above the paper path detects the reflected light if any. A dark region is provided below the paper path. More power is supplied to the light source when the sensor detects some light. An actuator is coupled with the printing mechanism of the meter to actuate it for printing of postage. When light is reflected from a mail piece, a timer is started, and when the timer reaches its programmed interval the actuator is actuated. The interval is adjustable by a trimmer adjustment, and two preprogrammed intervals may be selected by a front-panel switch.

Abstract: Disclosed is a circuit for controlling the load of an asynchronous motor (11), the circuit comprising two capacitors (19, 20), one of which (20) can be connected, by means of a switch (70), in parallel with the other (19). Control is provided by a current sensor (30) and a voltage sensor (40), whose signals (S.sub.1, S.sub.2) are compared by a comparator (25). Depending on the relative size of the signals (S.sub.1, S.sub.2) a switch control unit (60) with relaxation hysteresis characteristics switches the switch (70) on or off. The circuit is simple, operates independently of the mains voltage (U) being used and its switch point can be adjusted by means of the current sensor (30).