Press Operator QA Log: Color Spectrum & Substrate Variance Documentation

1. Section 1: Job Order Identification & Client Packaging Metadata

Accurately capture all job identification and client specification details to ensure complete traceability throughout the quality assurance process.

 

Job Order ID

Client Name

Client Product Code

Packaging Type Classification

 

Describe specialty packaging type:

Press Machine ID

Press Operator Full Name

Assistant Operator Name (if applicable)

Production Shift

Inspection Start Date & Time

Inspection End Date & Time

Total Order Quantity (units)

Sample Inspection Size (units measured)

Does this job have special client requirements beyond standard specifications?

 

Detail all special client requirements:

Is this a rush or priority order?

 

Original promised delivery date

2. Section 2: Delta E Color Variance & Ink Spectrophotometer Log

Document all color measurements using spectrophotometer readings. Delta E values must be recorded for each key measurement position across the printed sheet to identify spectral deviations from the approved standard.

 

Target Color Standard Reference

 

Custom Sample ID/Reference

Ink Type Used

Ink Batch/Lot Number

Ink Viscosity Reading (seconds, Zahn Cup)

Spectrophotometer Model & Serial

Spectrophotometer Last Calibration Date

Detailed Color Measurement Log Across Sheet Positions

Measurement Position

Target L*a*b* Values

Actual L*a*b* Values

Calculated Delta E

Within Tolerance?

Corrective Action Taken if Any

A
B
C
D
E
F
1
Leading Edge Left
L:56.2 a:32.1 b:-8.4
L:56.8 a:31.9 b:-8.2
0.85
Yes
None required
2
Center Position
L:56.2 a:32.1 b:-8.4
L:57.1 a:32.5 b:-8.0
1.12
Yes
Slight density increase
3
Trailing Edge Right
L:56.2 a:32.1 b:-8.4
L:58.3 a:33.2 b:-7.5
2.67
 
Ink key adjustment +2 units
4
 
 
 
 
 
 
5
 
 
 
 
 
 
6
 
 
 
 
 
 
7
 
 
 
 
 
 
8
 
 
 
 
 
 
9
 
 
 
 
 
 
10
 
 
 
 
 
 

Overall Delta E Status Classification

 

Describe the minor deviation and its potential impact:

 

Detail the major deviation and immediate containment actions:

 

Explain critical failure and full stop procedure initiated:

Was an ink formulation or density adjustment made to correct color variance?

 

Ink Adjustment Details

Ink Station/Unit

Parameter Adjusted

Original Value

Adjusted Value

Adjustment Time (minutes)

A
B
C
D
E
1
Cyan Unit
Density
1.35
1.42
8
2
Magenta Unit
Ink Key Opening
45%
48%
5
3
 
 
 
 
 
4
 
 
 
 
 
5
 
 
 
 
 
6
 
 
 
 
 
7
 
 
 
 
 
8
 
 
 
 
 
9
 
 
 
 
 
10
 
 
 
 
 

Total Number of Color Readings Taken During Run

Industry Tolerance Standard Applied (e.g., ISO, G7, client-specific)

3. Section 3: Substrate & Material Inspection Checklist

Thoroughly inspect and record substrate material properties, focusing on paper weight variance, caliper consistency, surface quality, and any material defects that could impact print quality or structural integrity.

 

Substrate Material Type

Substrate Brand/Manufacturer

Substrate Batch/Lot Number

Nominal Substrate Weight (g/m²)

Measured Weight Position 1 - Leading Edge (g/m²)

Measured Weight Position 2 - Center (g/m²)

Measured Weight Position 3 - Trailing Edge (g/m²)

Average Measured Weight (g/m²)

Weight Variance Percentage (%)

Weight Variance Status

 

Was the material batch rejected due to weight variance?

 

Provide detailed rejection justification and supplier notification actions:

 

Was the material batch rejected due to weight variance?

 

Provide detailed rejection justification and supplier notification actions:

 

Was the material batch rejected due to weight variance?

 

Provide detailed rejection justification and supplier notification actions:

Substrate Defects Observed During Inspection

Substrate Moisture Content Reading (%)

Surface Energy/Dynes Level (dynes/cm)

Was substrate stored under proper environmental conditions (temperature/humidity)?

 

Describe storage condition issues and potential impact on material:

Additional Material Quality Observations:

4. Section 4: Press Speed Adjustment & Waste Reduction Plan

Document all press speed modifications and waste generation data. Calculate waste percentages and identify root causes to support continuous improvement initiatives.

 

Standard Rated Press Speed (sheets/hour or meters/min)

Actual Average Press Speed During Production Run

Was the press speed adjusted from standard settings during this run?

 

Primary Reason for Speed Adjustment

Final Press Speed After Adjustments

Total Production Time Lost Due to Adjustments (minutes)

Total Material Waste Generated (kg)

Waste as Percentage of Total Material Used (%)

Waste Breakdown by Category

Waste Type Category

Quantity (kg)

Root Cause Code

Preventable?

A
B
C
D
1
Setup/Make-ready Waste
12.3
S1-Color Matching
Yes
2
Running Waste - Color
8.7
R2-Delta E Deviation
 
3
Running Waste - Substrate
15.2
R4-Material Defect
 
4
Downtime Waste
9.3
D1-Press Stop
Yes
5
 
 
 
 
6
 
 
 
 
7
 
 
 
 
8
 
 
 
 
9
 
 
 
 
10
 
 
 
 

Waste Reduction Actions Implemented

Estimated Cost of Waste Material (in your currency)

Does any portion of this production run require rework?

 

Quantity Requiring Rework (units)

Root Cause Analysis Summary for Waste Generation:

5. Section 5: Print Production Director Review & Sign-Off

Final quality review and authorization by Print Production Director. All deviations must be reviewed and approved before job release to finishing or shipping.

 

Print Production Director Name

Final Quality Review Decision

 

Detailed Rework Instructions and Quality Gates:

 

Rejection Justification and Disposition Plan:

 

Reason for Quarantine and Required Technical Review:

Director's Overall Assessment and Comments:

Director Digital Signature

Director Approval Date & Time

Overall Production Run Quality Rating (1=Poor to 5=Excellent)

Has the client been formally notified of any deviations or quality issues?

 

Client Notification Method

Should this QA intake form trigger a formal Corrective Action Preventive Action (CAPA) investigation?

To configure an element, select it on the form.

To add a new question or element, click the Question & Element button in the vertical toolbar on the left.