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What This Guide Helps With
Troubleshoot missing, blank, faint, incomplete, or unreadable cycle records caused by paper, printer condition, connections, settings, or record-output problems.
Step-by-Step Troubleshooting
1. Protect Patients and Sterilization Records
If the facility requires a printed or recorded cycle result for load release, do not release the affected load solely on the assumption that the cycle completed correctly.
Follow facility policy for alternate record verification, quarantine, or reprocessing.
A documentation failure does not automatically mean the sterilization cycle failed, but required records must still be available before clinical release when mandated.
Expected outcome: No load is released without the documentation required by facility sterilization policy.
2. Confirm the Exact Record Problem
Determine whether the complaint is:
- No paper output.
- Blank paper.
- Faint printing.
- Partially printed record.
- Garbled or unreadable characters.
- Missing cycle information.
- Printer operates intermittently.
- Record is missing only for certain cycles.
Retain any defective printout for work order documentation.
Expected outcome: The specific failure mode is identified and can be reproduced or documented.
3. Verify Paper Supply and Installation
Inspect the printer paper supply.
Check for:
- Empty roll.
- Incorrectly installed roll.
- Paper not feeding through the intended path.
- Wrinkled or damaged paper.
- Paper jam.
- Cover or latch not fully secured.
Use the correct approved paper type for the installed printer configuration.
Expected outcome: Paper is correctly installed and feeds normally. If replacing or reseating the paper restores a clear cycle record, troubleshooting can stop.
4. Inspect the Paper Path
With the printer idle, inspect accessible areas for:
- Torn paper.
- Adhesive residue.
- Debris.
- Misaligned paper.
- Obstruction around the feed path.
- Damaged accessible rollers or covers.
Do not disassemble the printer mechanism beyond approved external maintenance.
Expected outcome: The paper path is unobstructed and the paper advances smoothly. If clearing an accessible obstruction resolves the problem, verify a complete printout and stop troubleshooting.
5. Check Print Quality
If paper feeds but output is faint, blank, or incomplete, inspect the printed surface and verify that the paper is installed in the proper orientation when applicable to the printer type.
Compare with a fresh approved paper roll if available.
Do not assume printer-head failure until paper condition and installation have been ruled out.
Expected outcome: A known-good paper supply produces a legible record. If so, the original paper was the cause and troubleshooting can stop.
6. Verify Printer or Record Settings
Review normal user-accessible settings related to printing or cycle records.
Confirm that:
- Printing is enabled when the system provides that option.
- Record output has not been intentionally disabled.
- Date, time, and identifying information are reasonable.
- The correct record method is selected for the installed configuration.
Do not enter unauthorized service menus or alter restricted configuration values.
Expected outcome: Printer and record settings are appropriate. If correcting an approved setting restores output, verify a complete cycle record and stop troubleshooting.
7. Inspect External Printer Connections When Applicable
If the printer or recording accessory uses accessible external connections, inspect them for:
- Loose connectors.
- Bent or damaged contacts.
- Contamination.
- Cable damage.
- Poor seating.
Disconnect or reconnect only when the sterilizer is safely idle and when permitted by approved procedures.
Expected outcome: Accessible connections are secure and undamaged. If reseating a connection restores reliable records, troubleshooting can stop after verification.
8. Perform a Controlled Print or Cycle-Record Test
Using an approved nonclinical test process, generate a printer or cycle record.
Verify that the output is:
- Present.
- Legible.
- Complete.
- Consistent through the entire record.
- Correctly associated with the test cycle.
Do not release patient-care loads based solely on an engineering test record.
Expected outcome: A complete and readable record is produced. If successful, the printer function is verified and troubleshooting can stop.
9. Compare With Available Alternate Records
If the sterilizer provides another approved method of viewing or retaining cycle information, compare the printer output with the available cycle data.
This helps determine whether the problem is limited to printing or affects cycle-record generation more broadly.
Expected outcome: Cycle data is present and accurate outside the printer, indicating a printer-output issue rather than a complete record-generation failure.
10. Escalate Persistent Record or Printer Failure
If paper, feed path, settings, accessible connections, and basic testing are normal but records remain missing or unreadable, stop external troubleshooting.
Possible remaining categories include:
- Printer mechanism failure.
- Printer power or communication problem.
- Internal cable or connection issue.
- Control-board output problem.
- Record-generation or configuration fault requiring service-level evaluation.
Expected outcome: The sterilizer is removed from routine use when required cycle documentation cannot be produced or verified.
If the Problem Persists
Common external causes have been ruled out. If printer or cycle documentation is required for safe clinical workflow, remove the sterilizer from service and label it Out of Service.
Send the unit for repair or bench evaluation using appropriate Midmark documentation and approved test equipment. Internal printer, wiring, control, or configuration repairs should be completed only by qualified personnel.
After repair, verify a complete cycle and confirm that the resulting record is legible, complete, correctly associated with the cycle, and acceptable under facility documentation requirements before returning the sterilizer to service.
Knowing when to stop external troubleshooting is proper troubleshooting.
Clinical Use Tip
Confirm that required cycle documentation is available before releasing sterilized instruments, even when the sterilizer itself reports a completed cycle.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Sterile Processing reported that the Midmark M9 completed cycles but the printer produced blank cycle records."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found the printer paper had been installed incorrectly and was not producing a readable printed surface."
Resolution
What action was taken.
Example:
"Reinstalled the correct paper properly, generated a test cycle record, and verified complete and legible print output."
Helpful Details to Include (If Known)
- Whether output was missing, blank, faint, or incomplete.
- Paper type and condition.
- Paper installation and feed condition.
- Printer cover or latch condition.
- Printer or record settings observed.
- Accessible cable or connector condition.
- Whether alternate cycle data was available.
- Test record results.
- Date and time accuracy.
- Final device status.
Final Thought
Protect the integrity of sterilization records, check paper and accessible printer causes before assuming an electronic failure, verify complete record output after correction, and escalate appropriately when documentation cannot be trusted.
That is successful troubleshooting.