NX PARTS CATALOG

DIAGRAM 104B
Internal Components 3
(HP 4Si)

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PARTS TABLE
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Item Number	Part Number	Description click on camera icons to see pictures & notes	Printer Compatibility Notes
104B-1	RG5-0357-020	Rear Plate Assembly	All
104B-1A	RB1-0401-000	Plate, Rear	All
104B-1B	RB1-1669-020	Plate, Blanking	All
104B-1C	XA9-0267-000	Screw, TP, M3X6	All
104B-2	RG5-0140-000	TP Rail Assembly	IIISi/4Si
104B-4	RB1-0820-020	Frame, Right, Front	4Si
104B-5	RB1-0821-000	Frame, Right, Upper	4Si
104B-6	RB1-0847-000	Sheet, Insulating	All
104B-7	RB1-0848-000	Sheet, Insulating	All
104B-8	RG5-0168-000	DC Power Supply PCB 110/115V	4Si
104B-8	RG5-0169-030	DC Power Supply PCB 220/240V	4Si
104B-8A	VD5-0068-001	Fuse 100/115V	All
104B-8A	VD5-0104-001	Fuse 220/240V	All
104B-9	RG5-0164-000	Power Inlet Assembly 100/115V 600 dpi	All
104B-9	RG5-0165-000	Power Inlet Assembly 220/240V 600 dpi	All
104B-9A	RB1-0666-020	Holder	All
104B-9B	WT2-5025-000	Support, PCB	All
104B-9C	FA9-0031-000	Label 220/240V	All
104B-9C	FA9-0032-000	Label 100/115V	All
104B-10A	RG5-0160-000	Shield Plate Assembly	4Si
104B-10E	C2009-00006	Lower MIO Cover Plate	4Si
104B-10F	C2009-60109	Upper MIO Cover Plate	IIISi/4Si
104B-10G	C2009-60105	Cable, Parallel Assembly	4Si
104B-10H	C2009-40003	MIO Guide Assembly	IIISi/4Si
104B-10I	C2009-67901	Formatter PCB, Factory Rstd	4Si
104B-11	RG5-0126-000	Right Rear Frame Assembly	4Si
104B-12	RG5-0154-000	Formatter Pan Cover	4Si
104B-12C	RH7-1163-000	Fan, DC24V	4Si
104B-13	RG5-0091-000	DC Power Supply Cable	All
104B-14	RG5-0106-000	DC Driver PCB Cable	All
104B-15	RG5-0156-030	Cable, Control Panel	4Si
104B-16	RG5-0108-000	Cable, Paper Pick-up	All
104B-17	RG5-0130-000	Interface Cable	4Si
104B-17	RG5-0157-000	Cable, Interface	4Si
104B-19	WT2-5025-000	Support, PCB	All
104B-22	WT2-0204-000	Clip, Cord	All
104B-23	WT2-5031-000	Clip, Cord	All

Notes

Diagram 104B, above, illustrates HP 4Si. This diagram is almost identical to the HP IIISi version (Diagram 104A). The difference is that the pan assembly which houses the formatter board has been improved to accommodate two MIO cards. In addition there is a permanent Centronics parallel interface connector.

Item 9 was revised and slightly improved with some additional high-voltage capacitance in the AC line filtering circuit. All newer NX printers came with the newer part (higher numbered assemblies) and all older printers came with the older assemblies (lower numbered). In applications where the AC power isn't very clean and has switching spikes the newer version may be a bit more fault tolerant. For most people who have clean AC power in their buildings, there will not be any performance difference.