Use this model’s marking technology
Source Technologies ST9920 is recorded as Electro-photographic (EP). Separate a device-generated test from a computer job, and match the consumable system before following a replacement or print-quality procedure.
Source Technologies ST9920
Source model name: Source Technologies ST9920
Imaging product · US market · 40 owner topics
Specifications for ST9920 with owner checks for this product design. Use the matching manual for control sequences and replacement parts.
Specifications & model details
Source Technologies ST9920 is recorded as Electro-photographic (EP). Separate a device-generated test from a computer job, and match the consumable system before following a replacement or print-quality procedure.
Locate when the sound occurs, inspect paper loading, and stop for grinding, heat, odor, or leakage.
Category & symptom guidance
Listen from normal operating distance and note whether the sound occurs at power-on, paper pickup, carriage movement, printing, scanning, or idle. A brief feed or carriage sound differs from a repeated grind, squeal, or clunk. If the printer has a scanner, compare a scan with a print job; the sound may come from different mechanisms.
Record which tray and media were used and whether the sound happens on every sheet. Do not reach inside or move gears while the printer is powered.
Remove loose paper, envelopes, clips, and objects from around the printer. Confirm the tray is seated and the unit rests on a stable surface. Paper guides set too tightly, a curled sheet, or an overfilled tray can create unusual feed sounds. Follow the manual to remove paper and reload within the marked guides.
Check that the output tray or scanner lid is not vibrating against a wall or shelf. Do not press on the machine while it is running to quiet it; that can interfere with moving parts.
Inkjet printers may move a carriage during startup, alignment, and cleaning; laser printers may feed through rollers and warm a fuser. Their mechanisms and normal sounds differ. Check the manual’s operation description and do not apply a sound diagnosis from another design. A new repeated impact, slipping gear, or grinding that stops a job is not a routine sound to ignore.
If the printer displays a jam or carriage error with the noise, preserve that message and stop repeated attempts. Follow the exact jam-clearing steps without forcing a part.
A sizzling noise, burning smell, smoke, leaking ink, or repeated grinding is a stop-use condition. Turn off the printer and disconnect power if safe. Do not continue printing to see whether the sound clears, and do not open a hot fuser area. Contact support or qualified service.
Record a short clip, the job type, paper source, supply state, and exact model. A service technician can use that evidence to reproduce the noise without repeated operation at home.
Load one clean sheet in the specified tray and run a short internal test if available. Note whether the sound occurs at pickup, duplex return, or output. If it appears only from one tray, that localizes the paper path. Stop if the sheet catches or the printer reports a jam; do not pull against moving rollers. If the sound occurs during a scanner-only task, compare the scanner carriage with print transport.
If the sound occurs while the printer is idle, no page is feeding and the computer queue is empty, note whether it coincides with a maintenance cycle or network wake. Check the manual for normal startup or cleaning behavior. If it repeats continuously or the printer cannot reach ready, stop and contact support instead of waiting through repeated cycles.
These sources support the shared guide. Exact model specifications and matched family procedures have their own sources above.
Owner guidance by Specs & Parts, drafted with GPT-6 Luna. Sources and scope.
Recorded model facts
| Specification | Recorded value | Evidence |
|---|---|---|
| Declared print speed | 50 ipm or mppm | CertificationENERGY STAR — Printers & imaging printers.csv; row 1787; ENERGY STAR ID 2668216 Certification dataset declaration; check manufacturer installation documents for fit and clearances. Observed Oct 31, 2026 |
| Automatic duplex output | Yes | CertificationENERGY STAR — Printers & imaging printers.csv; row 1787; ENERGY STAR ID 2668216 Certification dataset declaration; check manufacturer installation documents for fit and clearances. Observed Oct 31, 2026 |
| Color capability | Monochrome | CertificationENERGY STAR — Printers & imaging printers.csv; row 1787; ENERGY STAR ID 2668216 Certification dataset declaration; check manufacturer installation documents for fit and clearances. Observed Oct 31, 2026 |
| Default sleep delay | 15 min | CertificationENERGY STAR — Printers & imaging printers.csv; row 1787; ENERGY STAR ID 2668216 Certification dataset declaration; check manufacturer installation documents for fit and clearances. Observed Oct 31, 2026 |
| Page format class | Standard | CertificationENERGY STAR — Printers & imaging printers.csv; row 1787; ENERGY STAR ID 2668216 Certification dataset declaration; check manufacturer installation documents for fit and clearances. Observed Oct 31, 2026 |
| Marking technology | Electro-photographic (EP) | CertificationENERGY STAR — Printers & imaging printers.csv; row 1787; ENERGY STAR ID 2668216 Certification dataset declaration; check manufacturer installation documents for fit and clearances. Observed Oct 31, 2026 |
| Product type | Printers | CertificationENERGY STAR — Printers & imaging printers.csv; row 1787; ENERGY STAR ID 2668216 Certification dataset declaration; check manufacturer installation documents for fit and clearances. Observed Oct 31, 2026 |