|
|
| (8 intermediate revisions by one user not shown) |
| Line 4: |
Line 4: |
| | | | |
| | ===Executive Summary=== | | ===Executive Summary=== |
| − | :The Hewlett-Packard Deskjet 960c is a single function inkjet printer capable of printing both black and white and color documents. As an affordable printer intended for use in the home, the HP Deskjet 960c was designed very well for its purpose. By disassembling the printer and looking at its components, it is clear as to why this printer was a nice model for the average consumer during the time it was manufactured. Although the printer has many, many components, all of which are documented and discussed below, each component serves a purpose in the printer. However, while the printer is very well put together, it is not without potential design revisions. The revisions that the group came up with are detailed below and were originally suggested with the functionality, reliability, weight, and the required maintenance of the printer in mind. Everything relating to the five gates of the project is deatiled below, with pictures included to visually represent each step in the diassembly and reassembly processes, as well as every component in the printer.<br> | + | :The Hewlett-Packard Deskjet 960c is a single function inkjet printer capable of printing both black and white and color documents. As an affordable printer intended for use in the home, the HP Deskjet 960c was designed very well for its purpose. By disassembling the printer and looking at its components, it is clear as to why this printer was a nice model for the average consumer during the time it was manufactured. Although the printer has many, many components, all of which are documented and discussed below, each component serves a purpose in the printer. However, while the printer is very well put together, it is not without potential design revisions. The revisions that the group came up with are detailed below and were originally suggested with the functionality, reliability, weight, and the required maintenance of the printer in mind. Everything relating to the five gates of the project is deatiled within the pages of the individual gates, with pictures included to visually represent each step in the diassembly and reassembly processes, as well as every component in the printer.<br> |
| | | | |
| | ===Group Members=== | | ===Group Members=== |
| Line 19: |
Line 19: |
| | | | |
| | ==Request For Proposal== | | ==Request For Proposal== |
| − | :The purpose of the Request For Proposal is to provide the group with a plan for the project as well as provide the group with initial information about the printer. The Work Proposal provides an overview of how the group plans to disassemble and reassemble the printer, while the Management Proposal provides a timeline for the group to follow to complete the project on time. The Management Proposal also details what each group member is responsible for during the project. Also, the Initial Product Assessment helps the group to familiarize itself with the printer by discussion certain aspects about the printer.<br><br> | + | :The purpose of the Request For Proposal is to provide the group with a plan for the project as well as provide the group with initial information about the printer. The '''Work Proposal''' provides an overview of how the group plans to disassemble and reassemble the printer, while the '''Management Proposal''' provides a timeline for the group to follow to complete the project on time. The Management Proposal also details what each group member is responsible for during the project. Also, the '''Initial Product Assessment''' helps the group to familiarize itself with the printer by discussion certain aspects about the printer.<br><br> |
| | :To view the Request For Proposal, click the link below<br> | | :To view the Request For Proposal, click the link below<br> |
| | :[http://gicl.cs.drexel.edu/wiki/Group_20_RFP Group 20 Request For Proposal] | | :[http://gicl.cs.drexel.edu/wiki/Group_20_RFP Group 20 Request For Proposal] |
| | | | |
| | ==Preliminary Project Review== | | ==Preliminary Project Review== |
| − | :The purpose of the Preliminary Project Review is to take a look back at our work and management proposals and see if they are working well, as well as provide a step by step guide for taking apart the HP Printer. The Disassembly Procedure details how the printer was taken apart, the Disassembly Reflection discusses what was found during the dissection, and the Causes For Corrective Action looks back at the initial plan proposed by the group and makes changes to that plan if necessary.<br><br> | + | :The purpose of the Preliminary Project Review is to take a look back at our work and management proposals and see if they are working well, as well as provide a step by step guide for taking apart the HP Printer. The '''Disassembly Procedure''' details how the printer was taken apart, the '''Disassembly Reflection''' discusses what was found during the dissection, and the '''Causes For Corrective Action''' looks back at the initial plan proposed by the group and makes changes to that plan if necessary.<br><br> |
| | | | |
| | :To view the Preliminary Project Review, click the link below<br> | | :To view the Preliminary Project Review, click the link below<br> |
| Line 30: |
Line 30: |
| | | | |
| | ==Coordination Review== | | ==Coordination Review== |
| | + | :The main purpose of the Coordination Review is to have the group analyze the components of the printer in order to see what works well, what could be improved, and what further forms of analysis can be completed in order to get a better understanding of the product. The '''Component Summary''' lists all of the components of the printer, including what they are made of as well as their manufacturing process, while the '''Component Summary Reflection''' further discusses what was found inside the printer. Using these components, '''Solid Models''' can be made to show how part of the printer is assembled in sequence, while '''Design Revisions''' can be made by the group based on total analysis of the product. Finally, '''Engineering Analysis''' can be used in order to show how further testing and analysis can be done on the HP Deskjet 960c Printer.<br><br> |
| | + | |
| | :To view the Coordination Review, click the link below<br> | | :To view the Coordination Review, click the link below<br> |
| | :[http://gicl.cs.drexel.edu/wiki/Group_20_CR Group 20 Coordination Review] | | :[http://gicl.cs.drexel.edu/wiki/Group_20_CR Group 20 Coordination Review] |
| − |
| |
| − |
| |
| − | :The main purpose of the Coordination Review is to have the group analyze the components of the printer in order to see what works well, what could be improved, and what further forms of analysis can be completed in order to get a better understanding of the product. The [[#Component Summary|Component Summary]] lists all of the components of the printer, including what they are made of as well as their manufacturing process, while the [[#Component Summary Reflection|Component Summary Reflection]] further discusses what was found inside the printer. Using these components, [[#Solid Model Assembly|Solid Models]] can be made to show how part of the printer is assembled in sequence, while [[#Design Revisions|Design Revisions]] can be made by the group based on total analysis of the product. Finally, [[#Engineering Analysis|Engineering Analysis]] can be used in order to show how further testing and analysis can be done on the HP Deskjet 960c Printer.<br><br>
| |
| − | ===Component Summary===
| |
| − | After disassembly of the printer, 57 components with important functions were found and documented. The full listing of these components can be found below, in Table 3: Components of the Printer.<br>
| |
| − | {| border="1" align="center"
| |
| − | |+ '''Table 3: Components of the Printer'''
| |
| − | ! width="50"|Part # !! width="125"|Part Name !! width="75"|Quantity !! width="200"|Function !! width="100"|Material !! width="150" | Manufacturing Process!! width="100"|Image
| |
| − | |-
| |
| − | ! 1
| |
| − | | align="center"|3/4" Torx 10 Screw
| |
| − | | align="center"|2
| |
| − | | align="center"|Hold top casing on printer
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Machining
| |
| − | | [[Image:IMG_2861.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 2
| |
| − | | align="center"|Outer Casing
| |
| − | | align="center"|1
| |
| − | | align="center"|House internal components of printer; protect printer from dust
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2933.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 3
| |
| − | | align="center"|Power Cable
| |
| − | | align="center"|1
| |
| − | | align="center"|Provide power to the printer
| |
| − | | align="center"|Plastic outside, copper inside
| |
| − | | align="center"|Injection Molding, Insertion of wire into cord
| |
| − | | [[Image:IMG_2914.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 4
| |
| − | | align="center"|Ink Cartridges
| |
| − | | align="center"|2
| |
| − | | align="center"|Provide ink to be used for printing
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2929.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 5
| |
| − | | align="center"|Back Panel
| |
| − | | align="center"|1
| |
| − | | align="center"|Allow access to back of printer in case of a paper jam
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2913.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 6
| |
| − | | align="center"|Paper Guide
| |
| − | | align="center"|1
| |
| − | | align="center"|Guide paper out of printer as documents are printing
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2931.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 7
| |
| − | | align="center"|LED and Button Assembly
| |
| − | | align="center"|1
| |
| − | | align="center"|Allow user to turn printer on and off, cancel a print job, and show when ink in printer is low
| |
| − | | align="center"|Plastic, Silicon for buttons
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2895.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 8
| |
| − | | align="center"|Parallel Port and USB Cover
| |
| − | | align="center"|1
| |
| − | | align="center"|Protect the main circuit board from outside damage from connecting cables
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2894.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 9
| |
| − | | align="center"|Thin Silver Bar
| |
| − | | align="center"|1
| |
| − | | align="center"|Pulls print head assembly into a vertical position
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Die Casting
| |
| − | | [[Image:IMG_2919.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 10
| |
| − | | align="center"|1/8" Round Head Torx 10 Screw with Ridge
| |
| − | | align="center"|2
| |
| − | | align="center"|Hold thin silver bar in place on top on printer
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Machining
| |
| − | | [[Image:IMG_2865.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 11
| |
| − | | align="center"|Large Motor
| |
| − | | align="center"|1
| |
| − | | align="center"|Provides power necessary to move ink cartridges back and forth across print head assembly
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Machining
| |
| − | | [[Image:IMG_2904.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 12
| |
| − | | align="center"|3/16" Flat Topped Torx 10 Screw
| |
| − | | align="center"|2
| |
| − | | align="center"|Hold large motor in place
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Machining
| |
| − | | [[Image:IMG_2867.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 13
| |
| − | | align="center"|Power Port and Circuit Board
| |
| − | | align="center"|1
| |
| − | | align="center"|Takes power from the power cable and uses it to run the motors in the printer
| |
| − | | align="center"|Epoxy Resin, Solder, Polytetrafluoroethylene
| |
| − | | align="center"|Board is molded; Individual components attached to board
| |
| − | | [[Image:IMG_2884.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 14
| |
| − | | align="center"|Power Port and Circuit Board Case
| |
| − | | align="center"|1
| |
| − | | align="center"|Houses power port and circuit board
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2885.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 15
| |
| − | | align="center"|3/16" Flat Topped Torx 10 Screw
| |
| − | | align="center"|1
| |
| − | | align="center"|Hold power port and circuit board in place
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Machining
| |
| − | | [[Image:IMG_2867.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 16
| |
| − | | align="center"|Small Circuit Board
| |
| − | | align="center"|1
| |
| − | | align="center"|Send information to small motor located near the rollers
| |
| − | | align="center"|Epoxy Resin, Solder, Polytetrafluoroethylene
| |
| − | | align="center"|Board is molded; Individual components attached to board
| |
| − | | [[Image:IMG_2879.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 17
| |
| − | | align="center"|Black Plastic Clip
| |
| − | | align="center"|1
| |
| − | | align="center"|Protect small circuit board near small motor from moving parts
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2877.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 18
| |
| − | | align="center"|3/16" Round Edge Torx 8 Screw
| |
| − | | align="center"|1
| |
| − | | align="center"|Hold small circuit board in place
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Machining
| |
| − | | [[Image:IMG_2868.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 19
| |
| − | | align="center"|Small Motor
| |
| − | | align="center"|1
| |
| − | | align="center"|Provides power necessary to move rollers
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Machining
| |
| − | | [[Image:IMG_2905.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 20
| |
| − | | align="center"|3/16" Round Edge Torx 8 Screw
| |
| − | | align="center"|2
| |
| − | | align="center"|Hold small motor in place
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Machining
| |
| − | | [[Image:IMG_2868.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 21
| |
| − | | align="center"|Ribbon Cable
| |
| − | | align="center"|1
| |
| − | | align="center"|Sends information between main circuit board and print head assembly
| |
| − | | align="center"|Copper, Plastic
| |
| − | | align="center"|Molding
| |
| − | | [[Image:IMG_2842.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 22
| |
| − | | align="center"|Heavy Silver Bar
| |
| − | | align="center"|1
| |
| − | | align="center"|Provides sturdy track for ink cartridges to move on
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Die Casting
| |
| − | | [[Image:IMG_2918.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 23
| |
| − | | align="center"|1/2" Torx 10 Screw
| |
| − | | align="center"|2
| |
| − | | align="center"|Hold heavy silver bar in place
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Machining
| |
| − | | [[Image:IMG_2869.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 24
| |
| − | | align="center"|Transparent Band
| |
| − | | align="center"|1
| |
| − | | align="center"|Provides additional support for ink cartridges to move on
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2892.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 25
| |
| − | | align="center"|Ink Cartridge Carriage
| |
| − | | align="center"|4 pieces
| |
| − | | align="center"|Holds ink cartridges and circuit board in place
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2898.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 26
| |
| − | | align="center"|Ink Cartridge Circuit Board
| |
| − | | align="center"|1
| |
| − | | align="center"|Provides information that tells print head assembly what to do
| |
| − | | align="center"|Epoxy Resin, Solder, Polytetrafluoroethylene
| |
| − | | align="center"|Board is molded; Individual components attached to board
| |
| − | | [[Image:IMG_2903.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 27
| |
| − | | align="center"|Pink Torx 10 Screw
| |
| − | | align="center"|6
| |
| − | | align="center"|Hold ink cartridge carriage together
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Machining
| |
| − | | [[Image:IMG_2866.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 28
| |
| − | | align="center"|Print Head Assembly Belt
| |
| − | | align="center"|1
| |
| − | | align="center"|Moves ink cartridges along print head assembly
| |
| − | | align="center"|Rubber
| |
| − | | align="center"|Molded into shape with pressure
| |
| − | | [[Image:IMG_2911.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 29
| |
| − | | align="center"|Print Head Assembly Frame
| |
| − | | align="center"|1
| |
| − | | align="center"|Holds print head assembly together
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Die Casting
| |
| − | | [[Image:IMG_2916.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 30
| |
| − | | align="center"|Paper Tray
| |
| − | | align="center"|1
| |
| − | | align="center"|Stores paper for printing
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2930.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 31
| |
| − | | align="center"|Plastic Covered Spring
| |
| − | | align="center"|1
| |
| − | | align="center"|Pull rollers and print head assembly closer together
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Coiling
| |
| − | | [[Image:IMG_2870.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 32
| |
| − | | align="center"|Main Circuit Board
| |
| − | | align="center"|1
| |
| − | | align="center"|Sends information to all parts of the printer with instructions for printing
| |
| − | | align="center"|Epoxy Resin, Solder, Polytetrafluoroethylene
| |
| − | | align="center"|Board is molded; Individual components attached to board
| |
| − | | [[Image:IMG_2907.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 33
| |
| − | | align="center"|Wire Harness
| |
| − | | align="center"|1
| |
| − | | align="center"|Transfers information from circuit board to all parts of the printer with instructions for printing
| |
| − | | align="center"|Copper
| |
| − | | align="center"|Individual wires braided together
| |
| − | | [[Image:IMG_2886.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 34
| |
| − | | align="center"|Roller Cover (1)
| |
| − | | align="center"|1
| |
| − | | align="center"|Protects rollers from accidental ink spills from cartridges, guides paper
| |
| − | | align="center"|Plastic, Steel
| |
| − | | align="center"|Injection Molding, Die Casting
| |
| − | | [[Image:IMG_2912.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 35
| |
| − | | align="center"|Rollers (1)
| |
| − | | align="center"|1
| |
| − | | align="center"|Pulls paper through printer
| |
| − | | align="center"|Plastic, Steel
| |
| − | | align="center"|Injection Molding, Die Casting
| |
| − | | [[Image:IMG_2917.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 36
| |
| − | | align="center"|Small cover for front right of printer
| |
| − | | align="center"|1
| |
| − | | align="center"|Houses wires
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2908.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 37
| |
| − | | align="center"|Spittoon
| |
| − | | align="center"|1
| |
| − | | align="center"|Catches excess ink from cartridges
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2887.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 38
| |
| − | | align="center"|Spittoon Cover
| |
| − | | align="center"|1
| |
| − | | align="center"|Ensures ink stays inside spittoon, unless a massive ink spill occurs
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2889.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 39
| |
| − | | align="center"|Spittoon Roller
| |
| − | | align="center"|1
| |
| − | | align="center"|Slides print head cleaner along the bottom of the ink cartridges
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2890.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 40
| |
| − | | align="center"|Print Head Cleaner
| |
| − | | align="center"|1
| |
| − | | align="center"|Cleans excess ink off of the bottom of the cartridges after printing
| |
| − | | align="center"|Plastic, Steel
| |
| − | | align="center"|Injection Molding, Investment Casting
| |
| − | | [[Image:IMG_2888.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 41
| |
| − | | align="center"|Spittoon Sponge
| |
| − | | align="center"|1
| |
| − | | align="center"|Soaks up excess ink
| |
| − | | align="center"|Plastic Polymers
| |
| − | | align="center"|Materials mixed in a mold
| |
| − | | [[Image:IMG_2893.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 42
| |
| − | | align="center"|Spittoon Motor
| |
| − | | align="center"|1
| |
| − | | align="center"|Powers print head cleaner
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Machining
| |
| − | | [[Image:IMG_2891.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 43
| |
| − | | align="center"|Small Gear from Spittoon
| |
| − | | align="center"|1
| |
| − | | align="center"|Transfer movement from motor to Spittoon
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2880.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 44
| |
| − | | align="center"|Large Gear from Spittoon
| |
| − | | align="center"|1
| |
| − | | align="center"|Transfer movement from motor to Spittoon
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2882.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 45
| |
| − | | align="center"|Pink Torx 10 Screw
| |
| − | | align="center"|3
| |
| − | | align="center"|Hold Spittoon together
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Machining
| |
| − | | [[Image:IMG_2866.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 46
| |
| − | | align="center"|Small Metal Block
| |
| − | | align="center"|2
| |
| − | | align="center"|Provide a spot for screws from the print head assembly to securely attach to
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Die Casting
| |
| − | | [[Image:IMG_2874.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 47
| |
| − | | align="center"|Wings
| |
| − | | align="center"|2
| |
| − | | align="center"|Guide paper as it leaves the printer
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2897.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 48
| |
| − | | align="center"|Small Spring
| |
| − | | align="center"|2
| |
| − | | align="center"|Allow slight movement of black plastic wings as paper goes through printer
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Coiling
| |
| − | | [[Image:IMG_2872.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 49
| |
| − | | align="center"|Wing Holders
| |
| − | | align="center"|2
| |
| − | | align="center"|Support Wings as paper goes through printer
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2896.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 50
| |
| − | | align="center"|Rollers (2)
| |
| − | | align="center"|1
| |
| − | | align="center"|Pulls paper through printer
| |
| − | | align="center"|Plastic, Steel
| |
| − | | align="center"|Injection Molding, Die Casting
| |
| − | | [[Image:IMG_2915.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 51
| |
| − | | align="center"|Roller Cover (2)
| |
| − | | align="center"|1
| |
| − | | align="center"|Protects rollers form accidental ink spillage
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2921.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 52
| |
| − | | align="center"|Medium Spring
| |
| − | | align="center"|1
| |
| − | | align="center"|Allow slight movement of gears and plastic pieces so pieces do not snap under pressure
| |
| − | | align="center"|Steel
| |
| − | | align="center"|Coiling
| |
| − | | [[Image:IMG_2871.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 53
| |
| − | | align="center"|Large Blue Gear
| |
| − | | align="center"|1
| |
| − | | align="center"|Transfer energy from roller motor to rollers
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2881.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 54
| |
| − | | align="center"|Large White Gear
| |
| − | | align="center"|1
| |
| − | | align="center"|Transfer energy from roller motor to rollers
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2883.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 55
| |
| − | | align="center"|Black Plastic Cover
| |
| − | | align="center"|1
| |
| − | | align="center"|Protect thin moving plastic pieces from breaking
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2925.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 56
| |
| − | | align="center"|Paper Lifter
| |
| − | | align="center"|1
| |
| − | | align="center"|Lifts paper from tray so rollers can make contact with paper
| |
| − | | align="center"|Plastic
| |
| − | | align="center"|Injection Molding
| |
| − | | [[Image:IMG_2924.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | ! 57
| |
| − | | align="center"|Frame
| |
| − | | align="center"|1
| |
| − | | align="center"|Provides a base for all of the printer parts to be placed in
| |
| − | | align="center"|Steel, Plastic
| |
| − | | align="center"|Die Casting, Investment Casting, Injection Molding
| |
| − | | [[Image:IMG_2932.JPG |center|thumb|50px]]
| |
| − | |-
| |
| − | |}<br><br>
| |
| − |
| |
| − | ===Component Summary Reflection===
| |
| − | '''Materials used in the Printer'''<br>
| |
| − | :Many of the components inside of the printer, as well as the printer housing, were made out of plastic. Plastic was chosen because it is cheap, lightweight and easy to form. Pieces like the small gears, spittoon, and roller covers did not need to be strong; they needed to be small, light and durable- roles which plastics fill easily. The frame of the printer, however, needed to be strong enough to support all of the components without major deformation, so it was made out of metal, as were the rod and back board supporting the print head assembly. The service station absorber was made out of a fibrous spongy material because its job is to hold as much as possible of excess ink cleaned from the print head.<br>
| |
| − |
| |
| − | '''Forces Applied to the Components'''<br>
| |
| − | :Few components in the printer are meant to handle strong forces. The notable exceptions to this observation are the two larger springs and the frame. Two tiny springs on the wings exert very small forces, not more than an ounce, but the two larger springs exert larger forces. We would estimate the the smaller spring exerts 0.5 pounds of force and the large plastic covered spring exerts 1 pound of force. The frame of the printer is subjected to the force of the weight of the printer’s many components- all told, probably about five to ten pounds of force.<br>
| |
| − |
| |
| − | '''Affects of the Material Choice on the Manufacturing Process'''<br>
| |
| − | :The prevalence of plastic materials in the printer makes the manufacturing process much easier. There were quite a few screws in the printer, but there were also many places in which pieces snapped into place. This is much easier to accomplish with plastic components than it is with metal and made assembly much quicker, and saved money as the cost was not driven up by more screws, as well as the cost of machining holes for the screws.<br>
| |
| − |
| |
| − | '''Affects of the Shape of the Components on the Manufacturing Process'''<br>
| |
| − | :Certain processes must be used for pieces with complicated shapes or thin pieces such as die casting or machining. Investment casting is used for very intricate metal pieces, injection casting for intricate plastic pieces. Injection molding was used for all of the plastic components, such as the gears, wings, and the smaller roller cover because of their complicated shapes. Die casting was used to create the precise configuration of the print head assembly frame and the thin silver bar that pulls the print head into a vertical position.<br>
| |
| − |
| |
| − | '''Reasons why each Manufacturing Process was used'''<br>
| |
| − | :*Injection Molding- Cheap to produce, ideal for producing large quantities of one part, low labor cost, and little wasted material.<br>
| |
| − |
| |
| − | :*Die Casting- Produces smooth surfaces; thinner surfaces can be cast than by sand or permanent casting.<br>
| |
| − |
| |
| − | :*Machining- High precision for metal pieces; can produce complicated shapes and edges.<br>
| |
| − |
| |
| − | :*Coiling- Best way to produce springs.<br>
| |
| − |
| |
| − | :*Investment Casting- Good surface finish, high dimensional accuracy, intricate small parts possible.<br>
| |
| − |
| |
| − | '''Particular Shapes of Certain Components'''<br>
| |
| − | :Many of the printer’s components have a distinct shape that allows them to fulfill their purpose. The rollers that draw paper up into the printer are round, some of the screws have flat tops so that they do not get in the way of other components while other screws have rounded tops to make them easier to remove, and the paper tray is exactly the right size to hold 8.5” by 11” paper.<br>
| |
| − |
| |
| − | '''Purpose of the Components- Functional, Cosmetic, or Both'''<br>
| |
| − | :Very few components in the printer serve a cosmetic purpose. The outside casing, and a few pieces such as the back panel that allows paper jams to be easily accessed and fixed, and the paper guide which holds printed sheets until they are dry serve both a cosmetic and a functional purpose. All other components inside of the printer are there because they fulfill a needed function. These functions include transferring data from one part of the printer to another, holding parts of the printer together, or moving parts of the printer.<br>
| |
| − |
| |
| − | '''Component Complexity'''<br>
| |
| − | :All of the components of the printer can be ranked on a complexity scale of 1 to 5, with each of the values outlined below.<br>
| |
| − | :*1. Component is solid, consists of one piece, composed of one material and has a simple shape.<br>
| |
| − | ::*Examples of Components with a complexity of 1 are the gears, spittoon casing, wings, print head assembly belt, the heavy silver bar of the print head assembly, springs, and the spittoon sponge.<br>
| |
| − | :*2. Component consists of one piece, is composed of one material and has a complex shape.<br>
| |
| − | ::*Examples of Components with a complexity of 2 are the wing holders, paper lifter, screws, wires, ribbon cable, top casing, and the back panel of the printer.<br>
| |
| − | :*3. Component consists of three or less pieces, may be made of different materials.<br>
| |
| − | ::*Examples of Components with a complexity of 3 are the print head cleaner, and the print head assembly frame.<br>
| |
| − | :*4. Component consists of four or more pieces made of different materials.<br>
| |
| − | ::*Examples of Components with a complexity of 4 are the rollers and the frame of the printer.<br>
| |
| − | :*5. The component is electronic in nature, such as a circuit board.<br>
| |
| − | ::*Examples of Components with a complexity of 5 are the 4 circuit boards of the printer and the 3 motors..<br>
| |
| − |
| |
| − | ===Solid Model Assembly===
| |
| − | :Our group chose to model the Spittoon portion of the printer for a couple a reasons. First, no one in our group had extensive knowledge of solid modeling, so we decided to model a relatively simple portion of the printer. Second, while the Spittoon itself is simple, the same important processes are used in all three sections of the printer that require a motor (Spittoon, Rollers, and Print Head Assembly). Thus, while we are modeling a simple part of the printer, the more complicated systems use the same basic components to complete their tasks. These basic components include a motor, gears or a belt to transfer the energy, and the final component that uses the energy (the rollers, ink carriage, or print head cleaner). Without any of these basic components, none of the three systems would work correctly, and the functionality of the printer would be greatly compromised. Due to the reasons outlined above, our group felt that modeling a portion of the Spittoon would be very beneficial to our understanding of the printer and its more complicated systems. As for the CAD package, our group decided to use Autodesk Inventor because the program was easily available to students on the Autodesk website, and because no one in our group had a 3D Cad package already available on their personal computer.<br>
| |
| − |
| |
| − | :*The parts of the Spittoon that we modeled are shown below in Table 4: Solid Model Figures<br>
| |
| − | ::*Solid Model Figure 1 is the Spittoon itself<br>
| |
| − | ::*Solid Model Figure 2 is the inner Spittoon gear that moves the Print Head Cleaner<br>
| |
| − | ::*Solid Model Figure 3 is the Spittoon Motor, which provides the power necessary to run the inner Spittoon Gear and in turn the Print Head Cleaner<br><br>
| |
| − | {| border="1" align="center"
| |
| − | |+'''Table 4: Solid Model Figures'''
| |
| − | !Spittoon
| |
| − | |[[Image:Casegroup20.jpg|center|thumb|upright=1|Solid Model Figure 1:<br> Spittoon]]
| |
| − | |-
| |
| − | !Spittoon Gear
| |
| − | |[[Image:Geargroup20.jpg|center|thumb|upright=1|Solid Model Figure 2:<br> Spittoon Gear]]
| |
| − | |-
| |
| − | !Spittoon Motor
| |
| − | |[[Image:Motorgroup20.jpg|center|thumb|upright=1|Solid Model Figure 3:<br> Spittoon Motor]]
| |
| − | |-
| |
| − | |}
| |
| − | <br>
| |
| − |
| |
| − | :The Spittoon works by using energy provided by the Spittoon Motor (Solid Model Figure 3), which arrives at the motor from the power port. The motor then turns three gears, two on the outside of the Spittoon, and one on the inside of the Spittoon (Solid Model Figure 2). The final gear is connected to the Print Head Cleaner, which slides back and forth inside the Spittoon and cleans excess ink off of the ink cartridges after each use. The exploded assembly of the Spittoon can be seen by clicking the link below.<br>
| |
| − |
| |
| − | :[http://img46.imageshack.us/img46/416/assembly20.jpg View Exploded Assembly of Spittoon]<br>
| |
| − |
| |
| − | ===Design Revisions===
| |
| − | While the HP Deskjet 960c Printer is very well put together, the group has come up with 4 design changes that we feel would improve the printer a great deal.<br>
| |
| − |
| |
| − | *To ease the maintenance and to increase the reliability of the printer, a new compartment should be made in the case. This compartment should be placed in a location that would allow the end user of the printer to remove the spittoon. If the sponge inside the spittoon was to overfill, the ink could leak out of the box, potentially ruining the printer. Currently the entire printer has to be disassembled to remove the spittoon. If a compartment was made to allow the direct removal of the spittoon then the owner would be able to clean it occasionally, prolonging the life of the printer.<br>
| |
| − |
| |
| − | *Along the same lines as the previous revision, a spill proof spittoon could have been used in the printer since there is no easy way to clean it. A spill resistant spittoon has higher walls, preventing the ink from spilling when the printer is moved. This would allow the printer to be transported by the owner without fear of spillage. This revision would also be relatively cheap because the spittoon is made of plastic.<br>
| |
| − |
| |
| − | *A third revision involves the overall weight of the printer. The material used for the frame of the printer is very heavy for what it is. Being constructed of a heavy metal may help the printer’s durability; however, many of the outer components of the printer are made of plastic. The plastic is not very durable in comparison to the metal, so a lighter material could be used, making the printer substantially lighter. This would be beneficial not only for the end user, but also for shipping the printer out to stores. Depending on the chosen material the cost to manufacture the printer could also be cheaper.<br>
| |
| − |
| |
| − | *The fourth revision that the group has come up with has to do with the fasteners used in the printer. While only screws and molded plastic clips are used, there are two different sizes of screws used in the printer- Torx 8 and Torx 10 Screws. If only one size screw was used, the need to have a second screwdriver would be eliminated, as well as the hassle of switching tools throughout the disassembly and the reassembly of the printer. Since the majority of the screws are of the Torx 10 variety, it would make sense that all of the Torx 8 screws be replaced by Torx 10 screws. While this revision reduces stress for the user taking apart the printer, it would also make manufacturing less expensive, because only one type of screw size would have to be produced instead of two.<br>
| |
| − |
| |
| − | ===Engineering Analysis===
| |
| − | A key functional part of the printer is the synchronization of the rollers and the print head assembly. Without this synchronization, the printer would produce incorrect print outs, which would severely limit the functionality of the printer. To prevent this problem from happening, tests could be done during the design phase of the printer to ensure that the rollers and print head assembly move at the correct speeds in order to produce proper print outs. To calculate the correct speeds that these parts need to move at, an engineering analysis problem such as the one below could be performed.<br>
| |
| − |
| |
| − | '''Problem Statement'''<br>
| |
| − | *What speed, in passes per second, does the print-head assembly of the HP Deskjet 960c need to move at for a proper print out of a black and white text document?<br>
| |
| − |
| |
| − | '''Diagram'''<br>
| |
| − | *Both Eng. Analysis Figure 1: Rollers, and Eng. Analysis Figure 2: Print Head Assembly, which are seen below in Table 5: Engineering Analysis Figures, must be moving in synchronization to produce proper print outs.<br>
| |
| − |
| |
| − |
| |
| − | {| border="1" align="center"
| |
| − | |+'''Table 5: Engineering Analysis Figures'''
| |
| − | !Rollers
| |
| − | |[[Image:IMG_2917.JPG|center|thumb|upright=1|Eng. Analysis Figure 1:<br> Rollers]]
| |
| − | |-
| |
| − | !Print Head<br>Assembly
| |
| − | |[[Image:2009 20 015b.JPG|center|thumb|upright=1|Eng. Analysis Figure 2:<br> Print Head Assembly]]
| |
| − | |-
| |
| − | |}
| |
| − | <br>
| |
| − | '''Assumptions'''<br>
| |
| − | *Black and white print speed of the printer is 15 pages per minute [[#References|<sup><nowiki>[1]</nowiki></sup>]]<br>
| |
| − | *Rollers move paper at print speed; therefore print-head assembly must keep up with rollers<br>
| |
| − | *Printed document is single spaced<br>
| |
| − | *Printed document has 48 lines of text with size 11 Calibri font <br>
| |
| − | *One pass of the print-head assembly is equal to one cross of the page, or 10 inches<br>
| |
| − | *One pass of the print-head assembly covers 5 lines with ink<br>
| |
| − | *Page must be completed on a whole pass, not a partial pass<br>
| |
| − |
| |
| − | '''Governing Equations'''<br>
| |
| − | *Seconds to print a page = ((1 minute)/(Pages per minute))*(60 seconds/1 minute)<br>
| |
| − | *Passes required to cover page with ink = (Lines of text)/(Lines covered per pass of the print-head assembly)<br>
| |
| − | *Passes required per second for proper print out = (Passes required/Seconds to print one page)<br>
| |
| − |
| |
| − | '''Calculations'''<br>
| |
| − | *Seconds to print a page<br>
| |
| − | seconds/page= ((1 minute)/(15 pages/minute))*(60 seconds)/(1 minute)=4seconds/page<br><br>
| |
| − | *Passes required to cover page with ink<br>
| |
| − | Passes= (48 lines)/(5 lines/pass)=9.6 passes=10 passes<br><br>
| |
| − | *Passes required per second<br>
| |
| − | Passes/second=(10 passes)/(4 seconds)=2.5passes/second<br><br>
| |
| − | *Passes per second = 2.5<br>
| |
| − |
| |
| − | '''Solution Check'''<br>
| |
| − | *The above answer of 2.5 passes per second is a reasonable answer to this problem, as a print-head assembly can generally be heard moving at a pretty quick pace to print out a document when using a home printer. Also, all calculations check with units, showing that the answer of 2.5 is indeed in the correct units.<br>
| |
| − |
| |
| − | '''Discuss and Interpret'''<br>
| |
| − | *After calculations, it is found that 2.5 passes per second are required to properly print out a black and white text document based on the assumptions that were made. This means that every second, the print-head assembly passes over the document 2.5 times, all the while putting ink on the page. By associating the manufacturer’s specification of 15 pages per minute print speed with one specific part of the printer, (the rollers), the other main part of the printer used to print a document, (the print-head assembly), can be isolated and the speed required of this particular part can be calculated. While black and white text documents are by no means the only types of documents that are printed, they are very common, and a nice benchmark to calculate data for that can be used in most cases. By using these assumptions, the required speed of the print-head assembly can be calculated.<br>
| |
| | | | |
| | ==Critical Project Review== | | ==Critical Project Review== |
| − | :The purpose of the Critical Project Review is to provide a final review of the printer and its components before submission of the project, as well as provide a step by step guide for reassembling the HP Printer. The [[#Product Reassembly Plan|Product Reassembly Plan]] details how the printer was put back together, while the [[#Reassembly Reflection|Reassembly Reflection]] discusses the differences between the disassembly and reassembly, how well the product works after reassembly, as well as any additional suggestions that the group may have regarding the printer.<br><br> | + | :The purpose of the Critical Project Review is to provide a final review of the printer and its components before submission of the project, as well as provide a step by step guide for reassembling the HP Printer. The '''Product Reassembly Plan''' details how the printer was put back together, while the '''Reassembly Reflection''' discusses the differences between the disassembly and reassembly, how well the product works after reassembly, as well as any additional suggestions that the group may have regarding the printer.<br><br> |
| − | | + | |
| − | ===Product Reassembly Plan===
| + | |
| − | :The reassembly of our printer took approximately two and a half hours over two separate days. Day one occurred on November 9, 2009, and encompassed steps one through fourteen. Day two occurred on November 16, 2009, and encompassed the remaining steps fifteen through thirty eight. Total time spent on each day was one hour on day one and one and a half hours on day two. Each step required to reassemble the printer is detailed below in Table 7: Reassembly Procedure. The difficulty of each step was measured using the following table, Table 6: Reassembly Difficulty Levels.<br>
| + | |
| − | | + | |
| − | {| border="1" align="center"
| + | |
| − | |+ '''Table 6: Reassembly Difficulty Levels'''
| + | |
| − | ! width="150"|Difficulty Level !! width="350"|Description of Level
| + | |
| − | |-
| + | |
| − | ! 1
| + | |
| − | | align="left"|*Minimal effort needed to complete step, only one attempt necessary.<br>* A person with no knowledge of product could complete step
| + | |
| − | |-
| + | |
| − | ! 2
| + | |
| − | | align="left"|*Some effort required to complete step, possibly more than one attempt necessary if unfamiliar with product.<br>*A person with little or no knowledge of product could complete step
| + | |
| − | |-
| + | |
| − | ! 3
| + | |
| − | | align="left"|*Active effort required to complete step, as step may need to be thought through to be performed correctly.<br>*Possibly more than one attempt necessary to complete step if step is not thought through properly or timing of step is incorrect.<br>*Pieces may be hard to replace properly as they were not intended to be put back together easily.<br>*A person with little knowledge of product could complete step.
| + | |
| − | |-
| + | |
| − | ! 4
| + | |
| − | | align="left"|*Quite a bit of effort required to complete step, as step requires some thinking and strength to be performed correctly.<br>*Possibly more than one attempt necessary to complete step if step is not thought through properly, timing of step is incorrect, or strength required to complete step is not used on the first attempt.<br>*Pieces may be hard to replace properly as they were not intended to be put back together easily.<br>* A person with some knowledge of product could complete step.
| + | |
| − | |-
| + | |
| − | ! 5
| + | |
| − | | align="left"|*Maximum effort required to complete step, as step requires thinking, timing, and strength to be performed correctly.<br>*Possibly more than one attempt necessary to complete step if step is not thought through properly, timing of step is incorrect, or strength required to complete step is not used on the first attempt.<br>*Pieces are difficult to replace properly as they were not intended to be out back together easily.<br>* A person with some knowledge of product could complete step.
| + | |
| − | |-
| + | |
| − | |}<br><br>
| + | |
| − | | + | |
| − | {| border="1" align="center"
| + | |
| − | |+ '''Table 7: Reassembly Procedure'''
| + | |
| − | ! width="50"|Step # !! width="350"|Process !! width="100"|Tools Used !! width="75"|Difficulty!! width="145"|Picture
| + | |
| − | |-
| + | |
| − | ! 1
| + | |
| − | | align="left"|*Put small silver clip back in on the bottom of the frame.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:group20_002.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 2
| + | |
| − | | align="left"|*Insert paper lifter into clips and through the left side of the frame.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:group20_001.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 3
| + | |
| − | | align="left"|*The Black Plastic Cover must be popped back in by sticking it in the two slots in bottom of printer, and popping in the back clips.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:group20_003.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 4
| + | |
| − | | align="left"|*Put matching blue and white gears back in on the left side of the printer.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:group20_004.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 5
| + | |
| − | | align="left"|*Slide the Rollers (2) into slots on both sides of the frame.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|2
| + | |
| − | | [[Image:group20_006.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 6
| + | |
| − | | align="left"|*The rollers must mesh with the gears that have already been inserted, and the medium spring must be placed over the white peg before it is snapped into its slot.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|3
| + | |
| − | | [[Image:group20_007.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 7
| + | |
| − | | align="left"|*Black clip must be fitted into the rollers while the white external clip with the spring must be connected to the blue gear.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|3
| + | |
| − | | [[Image:group20_010.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 8
| + | |
| − | | align="left"|*Snap the gray wing holders back into place on each side.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:group20_011.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 9
| + | |
| − | | align="left"|*Put the Wings and their small springs back into place on each side.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|2
| + | |
| − | | [[Image:group20_013.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 10
| + | |
| − | | align="left"|*Place the Small Metal Blocks back into the slots on either side
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:group20_015.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 11
| + | |
| − | | align="left"|*The Rollers (1) must now be inserted into a slot on one side and popped into the slot on the other in the back of the printer.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|2
| + | |
| − | | [[Image:group20_016.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 12
| + | |
| − | | align="left"|*Put Roller Cover (2) back onto the printer.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:img_2772.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 13
| + | |
| − | | align="left"|*Put Roller Cover (1) back onto the printer
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:group20_019.jpg|100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 14
| + | |
| − | | align="left"|*Put large Spring back into printer. (See picture for connections)
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|2
| + | |
| − | | [[Image:group20_022.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 15
| + | |
| − | | align="left"|<b>Reassemble Spittoon</b><br>*Place long gear back into Spittoon, followed by the Print Head Cleaner.<br>*Replace two small gears on outside of Spittoon, followed by Spittoon motor, which is attached using a pink Torx 10 Screw.<br>*Snap Spittoon Cover back into place.
| + | |
| − | | align="center"|Torx 10 Screwdriver
| + | |
| − | | align="center"|2
| + | |
| − | | [[Image:img_2804.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 16
| + | |
| − | | align="left"|*Pop Spittoon back into place and secure with two pink Torx 10 Screws.
| + | |
| − | | align="center"|Torx 10 Screwdriver
| + | |
| − | | align="center"|3
| + | |
| − | | [[Image:group20_026.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 17
| + | |
| − | | align="left"|<b>Reassemble Print Head Assembly</b><br>*Replace print head assembly circuit board, and secure it with the three casing pieces using 6 pink Torx 10 Screws.<br>*Slide the Ink Carriage back onto the large silver bar, and reconnect this back onto the print head assembly frame.<br>*Reconnect the transparent band.<br>*Reinsert the ink cartridges.
| + | |
| − | | align="center"|Torx 10 Screwdriver
| + | |
| − | | align="center"|3
| + | |
| − | | [[Image:group20_027.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 18
| + | |
| − | | align="left"|*Reconnect the Print Head Assembly to the printer using the two long screws.
| + | |
| − | | align="center"|Torx 10 Screwdriver
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:group20_028.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 19
| + | |
| − | | align="left"|*Slide in main circuit board behind the print head assembly frame, and use two flat 3/16" Torx 10 Screws to secure the board.
| + | |
| − | | align="center"|Torx 10 Screwdriver
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:group20_031.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 20
| + | |
| − | | align="left"|*Reconnect the Ribbon Cable to both the circuit board and the print head assembly.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|2
| + | |
| − | | [[Image:ribboncab.jpg|100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 21
| + | |
| − | | align="left"|*Reattach the black plastic clip to the small circuit board using 1 Torx 8 Screw and carefully insert it into the front left of the printer.<br>*The metal plate also needs to be reinserted into the left side of the printer.
| + | |
| − | | align="center"|Torx 8 Screwdriver
| + | |
| − | | align="center"|2
| + | |
| − | | [[Image:group20_033.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 22
| + | |
| − | | align="left"|*Reattach the small motor to the plate using two Torx 8 Screws.
| + | |
| − | | align="center"|Torx 8 Screwdriver
| + | |
| − | | align="center"|2
| + | |
| − | | [[Image:group20_035.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 23
| + | |
| − | | align="left"|*Reconnect the green and yellow wires to the small circuit board, and reconnect the blue and white wires to the small motor.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:greenyellow.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 24
| + | |
| − | | align="left"|*Insert the large motor into the print head assembly frame, and attach it using two flat topped Torx 10 screws.
| + | |
| − | | align="center"|Torx 10 Screwdriver
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:group20_034.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 25
| + | |
| − | | align="left"|*Stretch the print head belt over the large motor.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|4
| + | |
| − | | [[Image:group20_035.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 26
| + | |
| − | | align="left"|*Thread the remaining wires through the hole in the frame, then reattach the breadboard to the main circuit board.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|2
| + | |
| − | | [[Image:group20_036.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 27
| + | |
| − | | align="left"|*Put the power box back into the printer and attach it using two 1/2" Torx 10 Screws.<br>*The power box must be lifted over the pegs prior to being screwed into place.<br>*Reattach the red and green wires to the circuit board in the power box.
| + | |
| − | | align="center"|Torx 10 Screwdriver
| + | |
| − | | align="center"|2
| + | |
| − | | [[Image:group20_039.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 28
| + | |
| − | | align="left"|*Reconnect the green wires to the small green circuit board and screw it in near the power box using a flat topped Torx 10 screw.
| + | |
| − | | align="center"|Torx 10 Screwdriver
| + | |
| − | | align="center"|2
| + | |
| − | | [[Image:group20_green.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 29
| + | |
| − | | align="left"|*Press wires into clip that holds them in place near power box.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:group20_clip.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 30
| + | |
| − | | align="left"|*Push blue and black wires back through hole in front right of printer, then pop in small cover.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|2
| + | |
| − | | [[Image:group20_038.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 31
| + | |
| − | | align="left"|*Reattach gray wires to Spittoon motor.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:IMG_2797.JPG |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 32
| + | |
| − | | align="left"|*Slide in the paper tray and the paper guide.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:group20_040.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 33
| + | |
| − | | align="left"|*Replace silver bar on top of the print head assembly frame using two 1/8" Torx 10 Screws.
| + | |
| − | | align="center"|Torx 10 Screwdriver
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:IMG_2730.JPG |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 34
| + | |
| − | | align="left"|*Snap white wires into LEDs, and insert the LED panel into the printer housing.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:IMG_2728.JPG |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 35
| + | |
| − | | align="left"|*Press housing down onto the printer until all four clips snap into place.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|2
| + | |
| − | | [[Image:group20_041.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 36
| + | |
| − | | align="left"|*Use two 1/2" long Torx 10 Screws to attach the housing to the printer.
| + | |
| − | | align="center"|Torx 10 Screwdriver
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:IMG_2720.JPG |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 37
| + | |
| − | | align="left"|*Reinsert back panel into the printer and turn the knob, locking it in place.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:IMG_2714.JPG |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | ! 38
| + | |
| − | | align="left"|*The HP Deskjet 960c is now reassembled.
| + | |
| − | | align="center"|None
| + | |
| − | | align="center"|1
| + | |
| − | | [[Image:img_2999.jpg |100px|thumb|center|]]
| + | |
| − | |-
| + | |
| − | |}
| + | |
| − | | + | |
| − | ===Reassembly Reflection===
| + | |
| − | '''Differences Between Disassembly and Reassembly Processes'''<br>
| + | |
| − | :The majority of the printer was reassembled using the reverse steps from the disassembly procedure. The only differences occurred when parts on opposite sides of the printer from each other were reassembled in a different order than what had occurred during disassembly. However, this did not affect the overall reassembly of the printer, because as long as an entire layer of components were replaced before the next layer of components, the printer would still be rather straightforward to reassemble. Additionally, the entire Spittoon was put back together before being reinserted into the printer, where as during disassembly, the cover, print head cleaner, and internal gear were taken out before the Spittoon itself was removed from the printer. Besides these minor differences, the disassembly and reassembly processes of the printer occurred in the reverse order of each other.<br>
| + | |
| − | | + | |
| − | :Just as the reassembly and disassembly processes were similar, so were the tools necessary for both procedures. During disassembly, Torx 8 and Torx 10 Screwdrivers, a Flat Head Screwdriver (used as a pry tool), and hands were the only tools needed to complete the procedure. The same was true for the reassembly, as the exact same tools were necessary, and no additional tools were required.<br>
| + | |
| − | | + | |
| − | :By using detailed notes and pictures as a guide, the entire printer was able to be reassembled in the same way that the printer was prior to disassembly.<br>
| + | |
| − | | + | |
| − | '''Product Functionality After Reassembly'''<br>
| + | |
| − | :Before disassembly, the printer was tested to see how well it functioned. After the initial assessment, the printer was able to power on, with multiple functions occurring. First, the LEDs on the button panel lit up, signifying that the printer was indeed on. Second, the motors could be heard rotating inside the printer every time the printer was turned on. Third, when the cover was opened on the printer, the Print Head Assembly started to function, bringing the Ink Carriage into view for the user. Closing the cover returned the carriage back to its initial position. After reassembly, the printer was tested and was found to work in the same way that it did prior to disassembly. Unfortunately, without a USB cable to hook the printer up to a computer, it is unknown whether or not the printer could actually print a document if prompted to.<br>
| + | |
| | | | |
| − | '''Final Thoughts About Printer'''<br>
| + | :To view the Critical Project Review, click the link below<br> |
| − | :After completing the reassembly of the printer and testing its functionality, no additional revisions are believed to be necessary to the printer. Overall, the HP Deskjet 960c Printer is very well put together and performs its tasks extremely well. Naturally, new technology eventually led to better printers being produced, with increased capabilities and increased functionality. However, prior to its discontinuation, the HP Deskjet 960c Printer was a very respectable model in the home printing market, as its functions, seen with each print out, met the demands of consumers of the time.<br> | + | :[http://gicl.cs.drexel.edu/wiki/Group_20_CPR Group 20 Critical Project Review] |
| | | | |
| | ==References== | | ==References== |
| − | [http://www.epinions.com/review/pr-Printers_Hewlett_Packard_HP_DeskJet_960c_Personal_C8932D/content_109944409732 <sup><nowiki>[1]</nowiki></sup> Epinions.com]
| + | :All references used during the project can be found within the individual gate pages. |
