TroubleshootingDiagnosticsTroubleshooting
Surface Artifacts (Scratches)
One or more bright lines running the full length of the film is the source's definition of a scratch — verify it against the light box before you clean anything, then work the TH-first checklist below.
Applies to
DryStar 5300 (Type 5365/100)
Personnel
1 technician · Service-level technician — confirms a scratch by checking both film surfaces against a light source and by feel (fingernail), prints the STI2 test image to isolate the fault, cleans the TH per chapter 3.6 ("Check for dust stripes"), and inspects the film path for a mechanical part before condemning and exchanging the TH; no disassembly required to run this entry's own checks (derived — source does not assign a formal skill-level label to this section).
Steps
3 steps
Source
DD+DIS346.05E — Drystar 5300 Repair and Service, Troubleshooting, Chapter 3.3 (item 11.5), p.196, Edition 1 Rev.7
Full step-by-step for Surface Artifacts (Scratches)
All 3 steps are documented in the FSELIB DryStar 5300 service manual — re-authored, web-first, with the real figures from the source.
Open the full procedureRelated Diagnostics guides
Performing the Acceptance Test3 stepsBlank LCD Display0 stepsBubbles0 stepsContouring Visible; 'Landscaping'0 stepsContrast and/or Sharpness Not Okay0 stepsDensity Reproduction Not Okay0 steps
View all DryStar 5300 guidesSource: DD+DIS346.05E — Drystar 5300 Repair and Service, Troubleshooting, Chapter 3.3 (item 11.5), p.196, Edition 1 Rev.7. Preview re-authored by FSELIB — the full procedure with figures and steps is in the paid service manual.