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What This Guide Helps With
Troubleshooting Urisys 1100 printer, paper feed, blank printout, poor print quality, or report output issues caused by external/user-accessible conditions.
Step-by-Step Troubleshooting
Ensure Patient Safety First
Confirm the Urisys 1100 is not actively processing a patient urine test before troubleshooting the printer or opening the paper compartment.
If results are needed immediately, have laboratory staff use another validated analyzer or follow approved downtime documentation procedures.
Expected outcome: Patient testing and result reporting are not delayed or compromised by printer troubleshooting.
Verify the Reported Printer Issue
Ask staff what they observed.
Common reports may include:
- No printout after testing
- Paper not advancing
- Partial report
- Blank report
- Faded or unreadable print
- Paper jam
- Printer noise with no paper movement
- Results visible on screen but not printed
Expected outcome: The issue is confirmed as a printer or paper feed problem rather than a testing, LIS, operator workflow, or result storage issue.
Confirm Results Are Still Available
Check whether the analyzer displays or stores the result after the test.
Do not assume the test failed just because the printout failed.
Expected outcome: Result availability is confirmed before any repeat testing is considered.
Check Printer Paper Supply
Open the printer paper compartment and verify that paper is loaded.
Confirm the roll is not empty, loose, crushed, wet, contaminated, or installed incorrectly.
Expected outcome: The analyzer has usable paper installed and the roll can rotate freely.
If replacing or reseating the paper restores printing, stop troubleshooting and document the correction.
Verify Correct Paper Orientation
Confirm the paper is installed in the correct feed direction for the Urisys 1100 printer.
Thermal printer paper will only print properly on the thermal-coated side.
Expected outcome: Paper feeds correctly and printed text appears normally.
If the report was blank and reversing/reloading the roll restores print output, stop troubleshooting.
Inspect for Paper Jam or Torn Paper
Look for small pieces of torn paper, folded paper, adhesive residue, or debris in the paper path.
Remove only visible, accessible obstruction without forcing the printer mechanism.
Expected outcome: The paper path is clear and the paper can advance normally.
Check the Printer Cover or Paper Door
Confirm the printer cover is fully closed and seated correctly.
Some small analyzers may not feed or print properly if the cover is not seated.
Expected outcome: The printer cover is secure and no paper compartment error is present.
Test Paper Feed Function
Use the analyzer’s normal paper feed or print function, if available, to confirm whether the printer advances paper.
Expected outcome: Paper advances smoothly without slipping, grinding, bunching, or stalling.
If the paper advances normally and reports print clearly, return the device to service.
Check for Faded or Poor Print Quality
If the printer feeds paper but the report is faint, patchy, or blank, verify that approved thermal paper is being used.
Replace the paper roll with a known-good roll if available.
Expected outcome: Print quality improves with correct, fresh thermal paper.
Inspect for Contamination Near the Paper Path
Check for urine residue, disinfectant buildup, dust, paper fibers, or dried contamination around the printer opening and paper path.
Clean only external and user-accessible areas using facility-approved cleaning methods.
Expected outcome: Paper feeds without drag, sticking, or contamination.
Check Power Stability
Verify the Urisys 1100 is connected to a known-good outlet or approved power source.
Confirm the analyzer powers on normally and does not restart, dim, freeze, or shut down during printing.
Expected outcome: Printer failure is not being caused by unstable power.
Run a Test Print or Control Workflow
Perform a non-patient print verification, such as a test print, QC result print, or previous result print if allowed by facility policy.
Expected outcome: The printer produces a complete, readable report.
If the issue is resolved, return the analyzer to service after confirming normal operation.
Do Not Force the Printer Mechanism
If the printer motor runs but paper does not advance, or if the roller appears stuck, do not pry, force, or disassemble the internal printer mechanism.
Expected outcome: The device is protected from additional damage and the problem is escalated appropriately.
If the Problem Persists
If paper, orientation, cover seating, visible jams, contamination, and power have been checked and the Urisys 1100 still will not print or feed paper, the most likely cause is internal printer mechanism failure, paper sensor failure, roller wear, or printer control issue.
The device should be:
- Removed from service
- Labeled Out of Service
- Sent for repair, bench evaluation, or vendor service as appropriate
Knowing when to stop is proper troubleshooting. Do not perform deep internal disassembly or board-level repair during routine clinical troubleshooting.
Clinical Use Tip
Do not troubleshoot the printer while an active patient test is in progress. Move the patient or specimen workflow to a backup device first when result reporting is needed. If the analyzer can still display results but cannot print, confirm with the laboratory whether temporary result documentation is allowed under facility policy before returning the analyzer to use so therapy continuity and result documentation are not compromised.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Laboratory staff reported that the Roche Urisys 1100 would not print patient reports and the paper was not feeding after testing."
Cause
What was observed during troubleshooting.
Example:
"Found the thermal paper roll installed incorrectly, causing blank output and poor paper advancement."
Resolution
What action was taken.
Example:
"Reloaded the paper roll in the correct orientation, verified paper feed, completed a test print, and returned the analyzer to service."
Helpful Details to Include (If Known)
- Alarm behavior or printer message observed
- Paper roll, cover, or printer accessories checked or swapped
- Power behavior, outlet, or power source tested
- Environmental factors such as moisture, contamination, dust, paper fibers, or disinfectant buildup near the paper path
- Indicator lights, screen messages, blank output, faded output, partial print, unusual printer noise, or no-print condition noted
- Final device status: returned to service or removed from service
Final Thought
Printer issues on the Urisys 1100 should be approached logically before assuming internal failure. Confirm patient safety first, then verify paper supply, paper orientation, paper path, cover seating, contamination, and power. If the printer still fails after external causes are ruled out, remove the analyzer from service and escalate for repair. Clear CCR documentation helps show what was checked and why the final decision was appropriate.
That is successful troubleshooting.