1. A removable insert for a food holding tray, the food holding tray having an open top, an inside width between two opposing sides, an inside length between two opposing ends, and an inside depth between the open top and a bottom, the food holding tray being is sized, shaped and arranged to hold a number of pre-cooked food items, the insert comprising:
first and second opposing sides;
first and second opposing ends configured to hold the opposing sides in a first fixed, spaced-apart relationship to each other;
a surface extending between the first and second opposing sides;
a food product holding compartment formed into the insert surface, between the opposing sides and between the opposing ends, the holding compartment comprising a depression formed into the surface of the insert, the depression having a predetermined depth and shape, the predetermined depth corresponding a thickness of a food item to be held in the holding compartment, the predetermined shape corresponding to a shape of the food item to be held in the holding compartment;
wherein the insert is configured such that when placed into the food holding tray, the insert reduces the number of pre-cooked food items that can be held in the food holding tray, to a fixed and smaller number of pre-cooked food items.
2. The removable insert of claim 1, wherein the first and second sides of the insert each have a top and a bottom and a nominal height, substantially equal to a vertical separation distance between the top and bottom of the first and second sides, the nominal height being less than or equal to the inside depth of the food holding tray, wherein the surface of the insert is substantially planar and located substantially between the tops of the first and second sides, the food holding compartment formed into the insert surface having an open top and a closed bottom, the nominal height of the first and second sides being substantially equal to the inside depth of the food holding tray.
3. The removable insert of claim 1, wherein the first and second opposing sides are spaced apart from each other by a distance less than the inside width of the food holding tray.
4. The removable insert of claim 2, wherein the first and second opposing ends are spaced apart from each other by a distance less than the inside length of the food holding tray.
5. This removable insert of claim 2, further comprising a sleeve comprising first and second substantially upright sides and a horizontally-oriented cover supported by the first and second upright sides, the sleeve being configured to receive the food holding tray with the insert therein and to provide a cover to the food holding compartment in the insert.
6. The removable insert of claim 5, wherein the sleeve is configured to provide a space between the cover and the top surface of the insert that is less than about one-quarter of an inch.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A replacement toner cartridge for a printer having an existing print density control operating point table, comprising:
a memory device, the memory device storing data including an updated print density control operating point table from a programming host; and
a controller coupled to the memory device and configured to perform a parity check on the data stored in the memory device and, when the replacement cartridge is installed in the printer, to send data including the updated print density control operating point table from the memory device to the printer depending upon the parity check wherein, when received by the printer, the updated print density control operating point table overwrites the existing print density control operating point table in the printer.
2. The replacement toner cartridge of claim 1, wherein the programming host is a programmer in a manufacturing facility.
3. The replacement toner cartridge of claim 1, wherein the controller receives a parity bit from the memory device, calculates data parity and compares the calculated data parity to the received parity bit to perform the parity check.
4. The replacement toner cartridge of claim 1, wherein the controller transmits the updated print density control operating point table to the printer when the replacement toner cartridge is installed in the printer and when the data passes the parity check.
5. The replacement toner cartridge of claim 1, wherein the controller transmits an error signal to the printer when the replacement toner cartridge is installed in the printer and when the data fails the parity check.
6. The replacement toner cartridge of claim 1, wherein the controller provides the updated print density control operating point table to the printer in response to a read request from the printer.
7. The replacement toner cartridge of claim 1, wherein the updated print density control operating point table includes data to be used by the printer to determine laser power, duty cycle and developer bias voltage.
8. A method of confirming and sending data from a memory device in a replacement toner cartridge installed in a printer having an existing print density operating point control table, comprising the steps of:
sending a read command to the memory device in the replacement toner cartridge, the memory device having data including an updated print density operating point control table previously programmed by a programming host;
checking parity of the previously programmed data at the toner cartridge; and
transmitting the data to a printer based on the parity check, the data being transmitted with an error message if the parity check fails, and
if no error message is received by the printer, overwriting the existing print density operating point control table in the printer with the updated print density operating point control table.
9. The method of claim 8, wherein the programming host device is a programmer in a manufacturing facility.
10. The method of claim 8, wherein the step of checking parity at the replacement toner cartridge comprises:
receiving a parity bit;
calculating a data parity; and
comparing the calculated data parity to the received parity bit.
11. The method of claim 8, wherein the printer sends the read command including an address of a requested data and the replacement toner cartridge parity checks and transmits a confirmation message with the requested data to the printer if the parity check passes.
12. The method of claim 8, wherein the updated print density control operating point table includes data to be used by the printer to determine laser power, duty cycle and developer bias voltage.