Artifacts in Automatic Flashcards
• Appearance: Fine, evenly spaced
parallel lines
GUIDE SHOE MARKS
• Causes:
➢ Misaligned rollers or guide shoes during the film transport process
GUIDE SHOE MARKS
• Causes:
➢ Incorrect positioning of the film
as it moves through the processing equipment
GUIDE SHOE MARKS
• Appearance: Repetitive black or white marks at regular intervals
PI LINES
• Causes:
➢ Dirty rollers or other processing equipment parts (e.g., rollers or
film guides)
PI LINES
• Appearance: Alternating dark and light bands
CHATTER MARKS
• Causes:
➢ Uneven roller movement or
malfunctioning rollers
CHATTER MARKS
• Causes:
➢ Inconsistent film transport
speed caused by dirty or worn
rollers
CHATTER MARKS
• Appearance: Crescent-shaped or halfmoon-shaped marks
CRESCENT OR HALF-MOON MARKS
• Causes:
➢ Bending of the film during
transport
CRESCENT OR HALF-MOON MARKS
• Causes:
➢ Excessive pressure on the film as it moves through the rollers or
when the film is not properly
supported
CRESCENT OR HALF-MOON MARKS
• Appearance: Fine, white scratches
ROLLER SCRATCHES
• Causes:
➢ Dirty or worn-out rollers
ROLLER SCRATCHES
• Causes:
➢ Buildup of dirt or chemicals on
the rollers, which scrapes against
the film during transport
ROLLER SCRATCHES
• Appearance: Streaks or lines caused by water droplets during drying
WATER STREAKS
• Causes:
➢ Uneven drying of the film,
typically due to trapped water
droplets
WATER STREAKS
• Causes:
➢ Contaminated water used in
washing or final rinse
WATER STREAKS
• Appearance: Black tree-branch or starburst patterns
STATIC DISCHARGE ARTIFACTS
• Causes:
➢ Static electricity discharge
during film handling, especially in
low-humidity environments
STATIC DISCHARGE ARTIFACTS
• Causes:
➢ Rapid peeling of film from
cassettes or film holders
STATIC DISCHARGE ARTIFACTS
• Causes:
➢ Friction between film and dry
surfaces
STATIC DISCHARGE ARTIFACTS
• Appearance: Dark streaks or smudges
WET-PRESSURE ARTIFACTS
• Causes:
➢ Excessive pressure applied to
wet poqfilm
WET-PRESSURE ARTIFACTS
• Causes:
➢ Improper handling of the film
during processing
WET-PRESSURE ARTIFACTS