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A merchandise checkout system in which a first scanning device is brought into service at peak times to scan the bar codes of checkout items held by waiting customers in a checkout lane. Each first scanning device is preferably a mobile unit linked with a central computer tuned to a single transceiv

A merchandise checkout system in which a first scanning device is brought into service at peak times to scan the bar codes of checkout items held by waiting customers in a checkout lane. Each first scanning device is preferably a mobile unit linked with a central computer tuned to a single transceiver frequency associated with each lane so that multiple scanning units may be placed into service simultaneously. Purchase information is transmitted both to a tote display screen for review by a customer and to a temporary holding memory of the computer, linked with the computerized cash register of a lane. A specialized bagging cart is described to assist a clerk during scanning. After the checkout items are totalled, a multi-part queue number-total/subtotal slip including a bar code readable by a second scanning device at a cash register component is generated and presented to the waiting purchaser for later presentation to the cashier. The computer memory is capable of storing multiple files of purchase information associated with each lane. The cashier is thereby freed to only scan the queue number-total/subtotal slip to verify and tender the payments of customers serviced by the first scanning device, thereby increasing throughput. The queue number-total/subtotal is retrieved from the customer before payment, whereupon the customer is presented with an enlarged, organized receipt.

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[ I claim:] [1.] A merchandise checkout system for use with a sales item bearing a bar code containing retail information, wherein a plurality of sales items chosen for purchase is defined as checkout items, the system comprising:a portable bar code reading component for use by a first clerk at a fi

[ I claim:] [1.] A merchandise checkout system for use with a sales item bearing a bar code containing retail information, wherein a plurality of sales items chosen for purchase is defined as checkout items, the system comprising:a portable bar code reading component for use by a first clerk at a first mobile location, including:a first scanning means for optically reading the bar code;a first display means for displaying alphanumeric characters;a first input means for inputting retail information to complete an itemization of the checkout items, including an alphanumeric keypad with arithemetic functions for manual entry of input means including a pricw lookup key means, a save compound key means, an i put addition key means, an overring voiding key means, a register totalling key means, a delete input key means, and a final transaction key means; anda first printing means for generating a printed queue slip;a printed queue slip comprising a first part and a detachable second part printed by the first printing means for delivery to a customer, having thereon a queue bar code, a queue number, a balance due of the checkout items and an item count listed in the first part and a queue number, and item count and a balance due of the checkout items listed in the second detachable part;a cash register component for use by a second clerk at a second location, having:a second scanning means for selectively and optically reading the queue bar code and the bar code of each checkout item;a second printing means for generating a printed sales receipt;a second display means for displaying alphaaaaanumeric characters; anda second input means and a third display means for inputting retail information to complete an itemization of the checkout items, including an alphanumeric keypad with arithemetic functions for manual entry of input means including a price lookup key means, a save command key means, an input addition key means, a delete input key means, and a final transaction key means;a computing means for translating the bar code operably linked by a communication means to the bar code reading component and the cash register component, the computing means at least having:a database containing retail information for each sales item, the retail information at least including an item description and an item price for each sales item;a numeric sequence generator for generating a numeric sequence corresponding to a sequential order of each queue slip determined by the order iu which the queue slip is generated by the first printing means, and for assigning each queue slip with a queue number corresponding to its position in teh numeric sequence;a temporary holding memory for receiving and temporarily storing retail information and the queue number, which when the save command is entered defines in the temporary holding memory a checkout file; anda microprocessing means further comprising:means for retrieving the retail information from the database and translating it into the temporary holding memory in response to detection of the bar code by one of the first scanning means, the second scanning means, the first input means, and the second input means;means for generating the queue bar code from the retail information and the queue number held in the checkout file;means for comparing the queue number of each queue bar code scanned by the second scanning means with the numeric sequence to establish a correlating sequence of queue numbers sequentially presented at the cash register component;means for processing totals of the item prices of the checkout items; anda permanent storage memory for storage of a final transaction file.