Quick answer
Check whether paper is loaded in the alternative media feed. On the documented Designjet models, that feed can take priority over a software tray selection.
Understand the issue
This guidance concerns Designjet 10ps, 20ps, 50ps, 30 and 30n models covered by HP's article. Identify your exact printer first. Different generations have different feed behavior, so a tray number alone is not enough to choose a fix.
Step-by-step checks
- Confirm the model and intended paper source.
- Check the alternative media feed for loaded sheets.
- Follow the model instructions to use the desired tray and print one test page.
Need help with this issue?
Share your model and symptoms. Confirm availability and the quote before booking.
What the results mean
If another model behaves differently, use its media-source documentation before changing defaults for every job.
| Stage | Action |
|---|---|
| Start | Confirm the model and intended paper source. |
| Compare | Check the alternative media feed for loaded sheets. |
| Next step | Follow the model instructions to use the desired tray and print one test page. |
Repair checklist
If you need help, send RJ Computers your device model and the results of the checks above. Explain what must be preserved before work starts, especially files that have no other copy.
- Confirm assessment charges and what the quote includes.
- Ask for approval before additional parts or destructive software changes.
- Test the original symptom at handover and keep the repair details.
Ready for an assessment?
Share your model and symptoms. Confirm availability and the quote before booking.
Frequently asked questions
Can changing the application tray setting alone solve this?
Not when the model's loaded alternative feed takes priority.
What should I record before requesting help?
Record the full model, exact error or symptom, recent changes and what you already tried. Explain whether important files have a separate backup.
How do I arrange a repair assessment?
Call RJ Computers on +91 99715 24677 or use the WhatsApp booking button. Confirm availability, diagnostic fees and the scope of work before booking.
Conclusion
If another model behaves differently, use its media-source documentation before changing defaults for every job.
Further reading: Official product guidance