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A pivot mechanism for a light fixture includes a first pivot arm, a second pivot arm, a bushing, and a threaded screw. The first pivot arm includes a first end, a second end, and an orifice extending from the first end to the second end. The second pivot arm includes a shaped orifice extending from

A pivot mechanism for a light fixture includes a first pivot arm, a second pivot arm, a bushing, and a threaded screw. The first pivot arm includes a first end, a second end, and an orifice extending from the first end to the second end. The second pivot arm includes a shaped orifice extending from an opening to a threaded screw hole, a bushing having a head, a shaft with a shaped end, and a channel extending through the bushing. The bushing is inserted through the first end of the orifice in the first pivot arm and extends into the shaped orifice in the second pivot arm such that the shaped end mates with the shaped orifice. The threaded screw is inserted through the channel in the bushing and threaded into the screw hole in the second pivot arm.

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A pivot mechanism for a light fixture includes a first pivot arm, a second pivot arm, a bushing, and a threaded screw. The first pivot arm includes a first end, a second end, and an orifice extending from the first end to the second end. The second pivot arm includes a shaped orifice extending from

A pivot mechanism for a light fixture includes a first pivot arm, a second pivot arm, a bushing, and a threaded screw. The first pivot arm includes a first end, a second end, and an orifice extending from the first end to the second end. The second pivot arm includes a shaped orifice extending from an opening to a threaded screw hole, a bushing having a head, a shaft with a shaped end, and a channel extending through the bushing. The bushing is inserted through the first end of the orifice in the first pivot arm and extends into the shaped orifice in the second pivot arm such that the shaped end mates with the shaped orifice. The threaded screw is inserted through the channel in the bushing and threaded into the screw hole in the second pivot arm. hich is collected from said printing system installed at the predetermined place via communication. 5. A method in accordance with claims 1, wherein said expendables supply section outputs information on charging for the supply of expendables to said printing system, which has received the supply, via communication. 6. A method in accordance with claim 5, wherein the information on charging is output via communication to a printing system, which includes a receipt printer under driving control of said computer, so as to cause said receipt printer to print the information on charging. 7. A method in accordance with claim 1, wherein the production of expendables by said modules expendables production section is managed, based on the state of consumption of expendables collected from said printing system installed at the predetermined position via communication. 8. A method in accordance with claim 1, wherein the production of expendables by said modules expendables production section is managed, based on the supply of expendables given to the predetermined place by said expendables supply section. 9. A method in accordance with claim 1, wherein the production of expendables by said modules expendables production section is managed, based on the acquisition of the supply of expendables by said expendables supply section. 10. A method in accordance with claim 1, wherein said expendables supply section outputs information on the supply of expendables to said system construction section via communication. 11. A method of managing production of a printing system, which includes an ink jet printer and a computer, and supply of expendables, said method comprising the steps of: causing a system construction section to construct said printing system by assembling at least one printer module supplied from a modules expendables production section, which produces a printer module including at least a head of said ink jet printer and expendables consumed by said printer module, and a computer that controls a printing operation of said at least one printer module; installing at least one printing system thus constructed to be under management of maintenance by said system construction section in a predetermined place; and causing an expendables supply section to obtain a supply of expendables, which have been consumed by said printing system installed at the predetermined place, from said modules expendables production section and give the supply the expendables to said printing system based on a state of consumption of expendables, which is collected from said printing system via communication. 12. A method in accordance with claim 11, wherein the expendables include printing ink and printing paper. 13. A method in accordance with claim 11, wherein said expendables supply section outputs information on charging for the supply of expendables to said printing system, which has received the supply, via communication. 14. A method in accordance with claim 13, wherein the information on charging is output via communication to a printing system, which includes a receipt printer under driving control of said computer, so as to cause said receipt printer to print the information on charging. 15. A method in accordance with claim 11, wherein the production of expendables by said modules expendables production section is managed, based on the state of consumption of expendables collected from said printing system installed at the predetermined position via communication. 16. A method in accordance with claim 11, wherein the production of expendables by said modules expendables production section is managed, based on the supply of expendables given to the predetermined place by said expendables supply section. 17. A method in accordance with claim 11, wherein the production of expendables by said modules expendables production section is managed, based on the acquisition of the supply of expendables by said expendables supply section. 18. A meth