Sketch Paper Dispenser Tech-Spec
- christopher blessing
- Nov 4, 2024
- 17 min read
Updated: Nov 4, 2024
1. Introduction:
1.1. Purpose:
1.1.1 This document specifies the technical requirements and features of the
Paper Dispenser for 8.5x11 Inch Paper.
1.1.2 It aims to ensure that the product meets design specifications and user
needs for efficient paper handling.
1.1.3 The specification serves as a design guide and checklist for manufacturers,
ensuring all stakeholders understand the functionality and standards expected in
the final product, fostering communication and reducing errors during production.
1.1.4 It outlines specific performance metrics, such as maximum paper load
capacity (at least 500 sheets), ensuring the product serves its intended purpose
effectively.
1.2. Scope:
1.2.1 The specification covers mechanical requirements, material descriptions,
testing protocols, compliance standards, and user interaction details.
1.2.2 It includes considerations for ease of assembly, maintenance requirements,
and safety protocols in line with industry best practices.
1.2.3 This document is applicable for both initial design phases and revisions, ensuring
that changes to design or materials adhere to the foundational expectations
set forth.
1.3. Definitions Acronyms Abbreviations:
1.3.1. Dispenser:
1.3.1.1 A device that holds and releases paper; in this case, designed for 8.5x11
inch paper.
1.3.1. ABS:
1.3.1.1 Acrylonitrile Butadiene Styrene - a common thermoplastic used for its
durability and impact resistance, which may apply to other components of the
dispenser.
1.3.1. User Interaction:
1.3.1.1 The ways in which users engage with the product, including pulling paper,
using the lever, and maintaining the dispenser.
1
1.3.1. Performance Metrics:
1.3.1.1 Specific measurable criteria used to evaluate the functionality and effectiveness
of the dispenser.
1.4. References:
1.4.1. American National Standards Institute (ANSI):
1.4.1.1 Standards for consumer product safety compliance. [ANSI Standards](
1.4.1. ASTM International:
1.4.1.1 Standards regarding testing for materials used in consumer
products, including mechanical and durability tests. [ASTM Standards](
1.4.3 Relevant ISO certifications regarding mechanical products for safety and
environmental impact. [ISO Standards](https://www.iso.org/)
1.4.1. Material Safety Data Sheets (MSDS):
1.4.1.1 Specific to components to ensure no toxic substances are included.
1.5. Overview:
1.5.1 The Paper Dispenser offers a compact design that provides easy access and
smooth operation for typical office and home environments.
1.5.2 The product is engineered for efficiency, emphasizing simplicity of use,
reliability, and aesthetic appeal.
1.5.3 It features ergonomic design considerations such as a lever mechanism that
minimizes user effort while enabling effective paper dispensing.
1.5.4 Specific allowances for universal design principles are included, ensuring
accessibility for users with varying physical abilities.
1.5.5 The dispenser should visually align with common office decor, providing
an unobtrusive yet functional accessory for any workspace.
1.5.6 User interaction is enhanced through thoughtful design, including rubberized
grips, ensuring a comfortable and controlled experience when dispensing paper.
2. Product Overview:
2.1. System Context:
2.1.1 The Paper Dispenser is intended for frequent use in various environments
such as offices, classrooms, and homes where 8.5x11-inch paper is a standard.
2
2.1.2 It is designed to organize and facilitate quick access to paper stacks, thus
improving efficiency in settings where paper handling is essential.
2.1.3 The dispenser should be optimized for counter or desk placement, ensuring
stability and usability without occupying excessive surface area, ideally providing
a footprint of no more than 10 inches by 8 inches.
2.1.4 User familiarity with such dispensers is anticipated, which means the design
must integrate general usage patterns and expectations to minimize the learning
curve for new users.
2.2. Main Functionality:
2.2.1. The primary operation of the dispenser should enable users to
dispense sheets of paper smoothly while maintaining the organization
of the remaining stack. This is achieved by:
2.2.1.1 Implementing a lever mechanism that gives a mechanical advantage,
making it easier to pull the sheets without excessive force.
2.2.1.2 Incorporating rubber tips on the lever to securely grip individual sheets,
minimizing the risk of tearing or dropping, which could lead to user frustration
and paper waste.
2.2.2 The dispensing slot must be designed to allow the easy exit of paper
without jamming, featuring rounded edges and low-friction materials that guide
the sheets out of the dispenser smoothly. - The design should also accommodate
a wide range of paper types and weights commonly used in office settings (20-24
lb standard paper).
2.2.3 The angled back design will facilitate natural gravity-assisted dispensing,
ensuring that the top sheets are easily pulled while maintaining the stack's structure.
- The angle should have a robust hold, preventing slippage or misalignment
during operations.
2.2.4 Detailed design guidelines should adhere to ergonomic standards, such as
the American National Standards Institute's ANSI/HFES 100-2007 for human
factors engineering, ensuring the dispenser can be used comfortably without
straining users' hands or bodies.
2.2.5 Maintenance features shall include an easily accessible compartment for
removing jammed paper, ensuring that users can quickly restore functionality
without needing tools or technical expertise.
2.2.6 Additional features such as a clear visibility window to indicate paper
levels should be considered to alert users when restocking is necessary, enhancing
operational efficiency.
3
2.3. User Engagement and Experience:
2.3.1 The dispenser design should prioritize user engagement through interactive
features such as tactile feedback when pulling paper and visual indicators of
paper status.
2.3.2 User-testing sessions to refine the layout, ergonomics, and use-of-space
for the dispenser should be conducted, ensuring a high-level assessment of user
experience and interaction.
2.3.3 Clear, concise instructions in user-friendly language should be included
as part of the assembly manual, aiding users in understanding operational and
maintenance aspects straightforwardly.
2.3.4 The incorporation of universal design principles will ensure accessibility features,
such as easy-to-grasp levers and smooth surfaces, are integrated, adhering
to the Americans with Disabilities Act (ADA) standards.
2.4. Aesthetic and Functional Design Considerations:
2.4.1 The overall aesthetic of the dispenser should align with modern office decor,
utilizing neutral color palettes such as white, gray, or black, and implementing a
textured surface for better visual appeal.
2.4.2 Customization options, such as color variations or branding placements,
should be provided to users in specific contexts like corporate environments,
enhancing their identity within their workspace.
2.4.3 The materials used for the dispenser should be lightweight yet robust,
allowing for easy transport and repositioning without compromising strength,
adhering to relevant environmental regulations (such as RoHS compliance for
hazardous materials).
2.4.4 The design must not only fulfill functional features but must also reflect a
consciousness regarding sustainability, aiming for materials that are recyclable
or produced with minimal environmental impact.
2.5. Compliance and Standards:
2.5.1 Compliance with the ISO 9001 standard for quality management systems
will be essential throughout the design and manufacturing process to ensure
high-quality output.
2.5.2 Regular audits and reviews of the production and assembly workflow should
be integrated, focusing on continuous improvement and adherence to industry
best practices for quality assurance.
2.5.3 Environmental impact considerations must integrate evaluations in line
with ISO 14001 standards for environmental management systems, ensuring that
components are responsibly sourced and manufactured with reduced ecological
footprints.
4
3. Mechanical Requirements:
3.1. General:
3.1.1 The mechanical assembly of the Paper Dispenser must ensure effective paper
handling while maintaining durability and stability throughout its operational
life.
3.1.2 Each component should adhere to specific tolerances and dimensions to
ensure seamless interaction between assemblies, minimizing operational friction
and potential failure points.
3.1.3 All components should be designed for simple assembly and maintenance,
avoiding overly complex mechanisms that may confuse users or hinder usability.
3.2. Main assemblies:
3.2.1. Frame Assembly:
3.2.1.1 The frame serves as the core structure supporting all other components.
It must be engineered for a compact footprint, enabling efficient use of space.
3.2.1.1. Recommended material:
3.2.1.1.1 A high-strength plastic, such as ABS (Acrylonitrile Butadiene Styrene)
or a lightweight metal alloy, which provides a balance between durability and
weight. The frame should be able to withstand significant lateral stress without
warping or bending.
3.2.1.3 Dimensions should be approximately 12 inches in height, 10 inches in
width, and 8 inches in depth; consistent with the standard size of 8.5x11-inch
paper.
3.2.1.4 Tolerances for frame components must be within ±0.5 mm, ensuring
precise fit and finish, with specific attention to threads and joining surfaces to
prevent misalignment during assembly.
3.2.1. Lever Mechanism:
3.2.1.1 The lever mechanism must provide a mechanical advantage that enables
ease in pulling sheets of paper, designed for a typical pull force of less than 10
pounds maximum at full load.
3.2.1.2 Construction should utilize a composite material or reinforced plastic with
rubber tips; these tips must be molded to optimize grip while preserving paper
integrity. The rubber used shall meet certain durability standards including
abrasion and tear resistance as per ASTM D4060 for wear testing.
5
3.2.1.1. Dimension:
3.2.1.1.1 Approximately 5 inches in length with engineered pivot points that
allow for minimized resistance and higher efficiency during operation.
3.2.1. Dispensing Slot:
3.2.1.1 The dispensing slot should feature a tapered, low-friction design to prevent
jamming, constructed from an engineered polymer known for its smooth surface
finish.
3.2.1.2 Width should be approximately 7 inches, accommodating various paper
types and ensuring that the slot can handle up to 300 grams of force without
deformation.
3.2.1.3 Additional design considerations should include radiused edges to further
reduce paper snagging during extraction, adhering to ergonomic interaction
standards such as ANSI/HFES 100-2007.
3.2.1. Base Assembly:
3.2.1.1 The base must provide stable support crucial to maintaining performance
during operation. It should be designed to withstand lateral tipping forces and
support all other components seamlessly.
3.2.1.2 Construction recommended from reinforced plastic or a heavier gauge
metal; dimensions should be approximately 10 inches by 8 inches with a thickness
of 0.75 inches to ensure effective load distribution, with a weight that prevents
movement during use.
3.2.1.3 Anti-slip features, such as rubberized feet or pads, should be integrated
into the base to enhance stability during operation and prevent surface scratching.
3.2.1. Angled Back:
3.2.1.1 The fixed angled back fits into the overall design to facilitate the gravityassisted
dispensing of paper. The angle should be set at 30° relative to the
vertical axis to promote easy access to the top sheets of paper.
3.2.1.2 It should be constructed of the same material as the frame for consistency
in strength and durability, with molded grooves or elements to aid in paper
stacking and alignment.
3.3. Assembly and Integration Requirements:
3.3.1 Each component should be designed for seamless integration, utilizing
standardized fasteners that allow for quick assembly and minimal disassembly
time for maintenance.
6
3.3.2 Precise alignment features must be integrated into the design to ensure
that components like the lever and dispensing slot engage optimally, minimizing
manufacturing tolerances that could lead to operational failures.
3.3.3 A comprehensive assembly guide must accompany the product, including
visual diagrams and clear labeling for each component to assist manufacturers
and end-users.
3.4. Testing and Validation Requirements:
3.4.1 The dispenser’s mechanical functionalities should be validated through
rigorous tests that simulate the operational environment, including a 100,000-
cycle lever fatigue test and drop impact tests from 3 feet to assess durability
under normal user conditions.
3.4.2 All mechanical components should also undergo a thorough dimensional
inspection post-manufacturing, where critical tolerances are verified to align
with engineering specifications.
3.5. Safety and Compliance Requirements:
3.5.1 The dispenser must adhere to relevant mechanical safety standards, such
as ISO 12100 for general safety requirements of machinery to minimize risk and
ensure user safety during operation.
3.5.2 Components should be free of sharp edges, and the design should undergo an
additional hazard assessment to uncover and mitigate any potential injury risks
during use. Regular audits must be performed to ensure continuous compliance
throughout production runs.
4. Electrical Requirements:
4.1. General:
4.1.1 The Paper Dispenser is entirely mechanical and does not incorporate any
electrical components, ensuring simplicity of design and operation. This decision
enhances reliability while reducing manufacturing complexity and production
costs.
4.1.2 The mechanical nature of the dispenser is intended to fully eliminate issues
associated with electrical failures or the need for battery replacements, thereby
simplifying user interaction.
4.2. Main electrical systems:
4.2.1 N/A
4.3. Circuit Design and Components:
4.3.1 N/A
7
4.4. Interconnections and Interfaces:
4.4.1 N/A
4.5. EMI EMC Requirements:
4.5.1 N/A
4.6. Safety and Compliance Requirements:
4.6.1. While the product does not contain electrical systems, compliance
with relevant safety standards for mechanical devices is still
essential. These include:
4.6.1.1 ISO 12100 (Safety of machinery – General principles for design – Risk
assessment and risk reduction), which will ensure that the non-electrical elements
of the dispenser are designed and produced with safety in mind.
4.6.1.2 Regular reviews and audits focused on compliance with applicable material
safety requirements must be maintained to ensure a safe user experience.
4.6.1.3 The materials used in components that could potentially come in contact
with users must observe health and safety laws, especially preventing any exposure
to harmful substances or toxins.
4.6.1.4 Although electrical components are not applicable, the manual should
contain clear instructions highlighting the importance of keeping the dispensing
mechanism free from obstructions that could cause mechanical failure or injury,
emphasizing the safe handling of the product at all times.
5. Software Requirements:
5.1. General:
5.1.1 The Paper Dispenser is a purely mechanical device and does not require
any software systems for its operation. This design decision simplifies use and
maintenance, avoiding complications related to software integration generally
associated with electronic paper dispensers.
5.1.2 Despite the absence of software, user interaction can be enhanced with
supplementary information, such as physical instructions or visuals that provide
guidance on optimal use.
5.2. Functional Requirements:
5.2.1 N/A
5.3. Non Functional Requirements:
5.3.1 Although the dispenser does not have software functionalities, user ease
and satisfaction with its operation must be ensured through intuitive mechanical
8
design, reducing the need for extensive instructions or troubleshooting guidance.
5.4. User Interface and User Experience Requirements:
5.4.1. Clear user information should be provided, including:
5.4.1.1 Instructions printed directly on the dispenser for quick guidance on how
to operate the lever and access paper.
5.4.1.2 Simple graphics depicting the correct loading of paper stacks to assist
users in maintaining optimal organization within the dispenser.
5.4.2 Consideration should be given to tactile feedback design to enhance user
experience; for example, the lever should provide a noticeable click or resistance
when engaged, indicating proper use.
5.5. Integration and Interoperability:
5.5.1 N/A
5.6. Testing and Validation:
5.6.1 Even without electronic components, user testing sessions should be conducted
to gather feedback on the mechanical operation and ease-of-use aspects
of the dispenser.
5.6.2 Observational studies can aid in understanding typical user behaviors and
potential areas for improvement regarding user interaction, ease of assembly, and
maintenance procedures.
5.7. Safety and Compliance Requirements:
5.7.1 While there are no software safety requirements, the instructions and
physical interfaces need to hold up to safety standards, ensuring no feature
introduces hazards under normal operating circumstances.
5.7.2 User manuals should outline safe operational practices, reinforcing safe
handling and any mechanical components that could lead to misuse or injury if
not used correctly. For example, instructions should specify no more than the
recommended paper load to avoid jams or mechanical failure.
6. Interfaces and Interactions:
6.1. General:
6.1.1 The Paper Dispenser is a mechanical device designed to facilitate user
interaction through hands-on operation. The interactions primarily revolve
around the mechanical interfaces between the user and specific components of
the dispenser.
9
6.1.2 Ensuring smooth engagements and easy operations is critical to promoting
user satisfaction and reducing frustration during regular use.
6.2. Mechanical Electrical Interfaces:
6.2.1 N/A
6.3. Mechanical Software Interfaces:
6.3.1 N/A
6.4. Electrical Software Interfaces:
6.4.1 N/A
6.5. External Interfaces:
6.5.1. Lever Mechanism Interface:
6.5.1.1. The lever mechanism is the primary interface through which
users interact with the dispenser. It is designed to be easy to grasp
and operate, with the following specifications:
6.5.1.1.1 The lever should feature an ergonomic grip that allows for comfortable
operation while minimizing fatigue during frequent use.
6.5.1.1.2 The rubber tips on the lever should be designed to fit snugly against the
paper, ensuring a secure hold during extraction. Tensile testing should confirm
that the grip can withstand at least 20 pounds of pulling force without slippage.
6.5.1. Dispensing Slot Interface:
6.5.1.1. The dispensing slot interacts directly with the paper, and its
design is crucial for efficient and smooth operation:
6.5.1.1.1 The slot's edges should be rounded to help guide sheets out while
reducing the chance of tearing or snags. This design should adhere to ergonomic
considerations outlined in ANSI/HFES 100-2007, ensuring user comfort.
6.5.1.1.2 A visual design feature, such as a clear "well indicator," could be
implemented around the slot area to show users how many sheets are available
and when they need to load more paper.
6.5.1. Maintenance Access Interface:
6.5.1.1. To ensure user convenience, the dispenser should offer an
easy maintenance access interface:
6.5.1.1.1 The base assembly must incorporate an access panel or removable
cover to allow users to quickly resolve jams or maintain the mechanism without
10
disassembling the entire unit. The access panel should be clearly labelled and
easy to operate, requiring no tools to open.
6.5.1. Visual and Textual Indicators:
6.5.1.1. Physical indications on the dispenser should improve user
interaction:
6.5.1.1.1 Clear graphical instructions or pictographs must be placed strategically
on the device, depicting steps for loading, using the lever, and removing jams.
6.5.1.1.2 Instructional text should be legible, with a recommended font size of at
least 12 points to ensure readability, especially in low-light environments typical
of office settings.
6.5.1. User Feedback Integration:
6.5.1.1. A feedback system should be subtly integrated into the
device's mechanical features, providing users with audible and tactile
feedback:
6.5.1.1.1 The lever should produce a soft click sound upon optimal engagement,
indicating correct operation and confirming to the user that they are dispensing
paper effectively. This feature can help in reinforcing proper usage behavior over
time.
6.6. User Experience Considerations:
6.6.1 The entire interface design must be evaluated through user testing protocols,
examining key areas such as lever engagement force, feedback responses, and
ease of use during various operating conditions.
6.6.2 Incorporation of user-derived feedback in design iterations will ensure that
the dispenser meets the practical and ergonomic needs of its intended audience.
7. Environment and Conditions:
7.1. General:
7.1.1 The Paper Dispenser is specifically designed for indoor use, ensuring optimal
performance in controlled environments such as offices, classrooms, and homes.
This focus guarantees that user experience remains consistent and reliable.
7.1.2 Considerations must be made to accommodate common environmental
factors that can affect the longevity and functionality of the dispenser.
7.2. Operating Environment:
7.2.1 The dispenser should operate effectively within a specified temperature
range of 0°C to 50°C (32°F to 122°F) and relative humidity levels of 20% to 80%.
11
These parameters are consistent with typical indoor conditions and ensure that
materials maintain their intended properties without warping or degrading.
7.2.2 Adequate ventilation should be considered in locations where the dispenser
is placed, particularly when located near heat sources or in cramped spaces that
may lead to heat retention, potentially impacting material integrity over time.
7.3. Storage and Transportation Conditions:
7.3.1 When not in use, the Paper Dispenser should be stored in a cool, dry environment,
preventing exposure to moisture that could lead to mold or degradation
of materials.
7.3.2 Proper packaging design for transportation must include cushioning materials
to prevent damage during transit. This should comply with relevant
transportation guidelines to minimize risk during shipping. Packaging should
also have labels indicating handling instructions.
7.3.3 The dispenser should not exceed a stacking weight limit of 150 pounds
during shipping and storage to avoid damage to the unit below.
7.4. Lifespan and Maintenance Considerations:
7.4.1 The expected operational lifespan of the dispenser is projected to be 5
years under normal usage conditions, with routine checks performed to assess
condition and functionality.
7.4.1. Recommended periodic maintenance should include:
7.4.1.1 Inspection of the lever mechanism for wear and tear, intended to happen
semi-annually.
7.4.1.2 Regular cleaning of surfaces with mild detergents to maintain aesthetic
appearances and prevent buildup of dirt or grime that could affect the mechanical
functions.
7.4.1.3 Users should be instructed to monitor for paper jams regularly, specifically
once a month, to ensure the functionality and operational integrity of the
dispenser.
7.5. Environmental Impact Considerations:
7.5.1 Materials used in the product must comply with environmental regulations
such as the European Union’s RoHS directive, which restricts the use of specific
hazardous materials. Consideration for the end-of-life disposal of the product
must include clear guidance on recycling or proper waste disposal of components,
promoting sustainability.
7.5.2 Sustainability assessments should be carried out to evaluate the environmental
impact of the manufacturing process and choice of materials, ensuring
12
that production aligns with ISO 14001 standards for environmental management.
This includes considerations for carbon footprint, resource usage, and waste
generation during manufacturing.
8. Safety and Compliance:
8.1. General:
8.1.1 Safety is a primary concern in the design and manufacturing of the Paper
Dispenser. All features and materials must be examined and constructed to
prevent user injuries and ensure compliance with relevant safety regulations.
8.1.2 The dispenser must be designed not only for optimal functionality but also
to foster safe usage practices in all intended environments, such as homes, offices,
and classrooms.
8.2. Risk Assessment and Mitigation:
8.2.1. A comprehensive risk assessment should be performed during
the design phase to identify potential hazards associated with the
dispenser's usage. This assessment should focus on:
8.2.1.1 Operational hazards, including injury risks when pulling paper or engaging
the lever, ensuring that no pinch points exist that might harm users.
8.2.1.2 Failure modes, including jamming or structural failure during use, which
could unleash paper quickly and potentially cause injury or damage.
8.2.1.3 Potential stability issues, ensuring that the base is designed to withstand
tipping forces when in use, protecting against accidental spills or falls.
8.2.2 Mitigation strategies must include design features such as rounded slot edges,
stable heavy bases, and user-friendly maintenance interfaces. These strategies
should be routinely reviewed as part of the product lifecycle assessment.
8.3. Standards and Certifications:
8.3.1. The Paper Dispenser must adhere to several key standards
within the industry to ensure user safety and product quality:
8.3.1.1 ISO 12100 (Safety of machinery – General principles for design – Risk
assessment and risk reduction) provides guidelines for reducing risks during
the machine’s use. Compliance must be documented through risk assessment
reports.
8.3.1.2 ASTM F1951, which outlines safety and performance standards for
accessibility devices, should be adhered to, ensuring that the dispenser is usable
by individuals with varying abilities, aligning with the Americans with Disabilities
Act (ADA) requirements.
13
8.3.1.3 Regular review and updates should be mandated to accommodate changes
in safety standards or regulations within the mechanical product industry, fostering
a culture of continuous improvement.
8.4. User and Maintenance Safety Considerations:
8.4.1. Clear user instructions printed directly on the dispenser should
cover safe operational practices, such as:
8.4.1.1 Recommended maximum paper load to prevent jams or mechanical
failure. The instruction should specify not exceeding 500 sheets to ensure smooth
operation.
8.4.1.2 Guidelines for handling jams safely, directing users on how to correctly
access the maintenance compartment without initiating accidental lever engagement
that could cause injury.
8.4.2 An initial user training session or informational materials could enhance
understanding of safe handling practices for all users, particularly in environments
with multiple users, such as offices or schools.
8.4.3 Warning labels indicating potential hazards should be affixed prominently
to the dispenser, including instructions like "Do not exceed maximum load" or
"Keep fingers clear of the lever during operation" to foster a safe user environment.
8.5. Compliance Auditing and Monitoring:
8.5.1 Ongoing compliance with safety standards should be monitored through
periodic audits and testing to verify that the dispenser continues to meet the
outlined safety requirements after production.
8.5.2 Feedback mechanisms should be established to collect user experiences
related to safety concerns, with a clear protocol for addressing and rectifying
identified issues effectively.
8.5.3 Annual reviews of design and functionality should be carried out, focusing on
user feedback, safety reports, and any changes in safety standards or regulations,
ensuring continued compliance and product integrity.
9. Appendices:
9.1. General:
9.1.1 The appendices provide supplementary information relevant to the technical
specifications of the Paper Dispenser. They serve as additional resources for
manufacturers, users, and stakeholders to ensure comprehensive understanding
and effective product utilization.
9.1.2 Each section contains detailed resources that support the main documentation,
illustrate assembly processes, and clarify technical terms utilized throughout
the specification.
14
9.2. Drawings Diagrams and Schematics:
9.2.1 Detailed diagrams of the Paper Dispenser's assemblies should be included
to aid in understanding the mechanical layout, assembly process, and component
interactions. - CAD drawings must illustrate key dimensions and tolerances
clearly, ensuring that fabricators have accurate references during production. -
Assembly schematics must denote the order of assembly, incorporating 3D views
if available to enhance clarity and facilitate easier assembly procedures.
9.3. List of Tools and Software:
9.3.1. The following tools are recommended for assembly and maintenance
of the Paper Dispenser:
9.3.1.1. Standard tools needed for assembly:
9.3.1.1.1 Phillips and flathead screwdrivers
9.3.1.1.2 Adjustable wrench for nuts and bolts
9.3.1.1.3 Pliers for grasping or bending small parts
9.3.1.1. Maintenance tools:
9.3.1.1.1 Soft cloths for cleaning surfaces
9.3.1.1.2 Mild detergents for surface maintenance, ensuring no harsh chemicals
that could degrade materials are used.
9.3.1.3 No software tools are required since the dispenser has no electronic
components; however, simple instructional guides must be available to help
facilitate assembly and troubleshooting.
9.4. Glossary:
9.4.1. A glossary of technical terms and acronyms used in the documentation
will be provided for clarity:
9.4.1.1. Tolerance:
9.4.1.1.1 The allowable deviation from a standard measurement, critical in
ensuring proper fit and finish of the product components.
9.4.1.1. Ergonomic:
9.4.1.1.1 Refers to product design that prioritizes user comfort and efficiency in
use, essential for long-term user satisfaction.
15
9.4.1.1. Grip Strength:
9.4.1.1.1 The amount of force applied by the rubber tips of the lever mechanism;
needs verification to ensure they maintain adequate hold on the paper without
damage.
9.4.1.1. ASTM:
9.4.1.1.1 American Society for Testing and Materials; an international standards
organization that develops and publishes voluntary consensus technical standards
for materials, products, systems, and services.
9.4.2 Technical terminology should be defined succinctly, ensuring all users,
including those new to the field, can fully comprehend the specifications and
requirements set forth in the document.
9.5. Compliance Documentation:
9.5.1. Documentation demonstrating compliance with relevant safety
and quality standards should be included:
9.5.1.1 Copies of certification by regulatory bodies confirming adherence to
standards such as ISO 12100 and ASTM F1951 should be archived for reference.
9.5.1.2 Records of risk assessments and audits conducted during the product
lifecycle must be retained for quality assurance and future evaluations.
9.6. User Manuals and Instructions:
9.6.1. A user manual should be developed, containing:
9.6.1.1 Step-by-step assembly instructions with accompanying diagrams.
9.6.1.2 Clear operating guidance that outlines how to dispense paper effectively,
maintain the unit, and troubleshoot common issues.
9.6.1.3 Safety precautions must be emphasized, aiding users in recognizing and
mitigating potential hazards associated with improper use.
9.6.2 Consideration must also be made for the development of FAQs and troubleshooting
guides, accessible in both print and digital formats to facilitate easy
access for end-users.
9.7. Feedback and Revision Logs:
9.7.1 A structured feedback system should be documented, allowing stakeholders
to contribute user experiences, suggestions for improvements, or report issues
related to safety and usability.
16
9.7.2 Revision logs should track changes made to the design or specifications over
time, documenting the rationale behind those changes, and providing insight into
the product development lifecycle to maintain transparency and accountability.
17
Comments