TYPEWRITER TROUBLESHOOTING • BEGINNER GUIDE
Is your typewriter ribbon gathering into a loose loop, folding over itself, or slipping out of its guide? This can happen just after fitting a new ribbon, even when the keys and carriage seem to work normally. The good news is that many cases are caused by a threading or spool-fit issue you can identify without dismantling the machine.
The important first step is to identify your typewriter’s make and model. Different machines feed and reverse their ribbons in different ways. A Royal office machine, an Olivetti portable, and an electronic Brother may need entirely different instructions. If you are unsure of the model, use InkSmart’s typewriter finder or ask for help before buying parts.
What does ribbon bunching actually mean?
On many manual typewriters, one spool is the take-up spool: it pulls the used ribbon across the printing point. The other spool supplies ribbon and is usually not powered at the same time. A small amount of slack may be normal. A growing pile of ribbon, repeated folding, or ribbon jumping out of its guide is not.
In a r/typewriters discussion about a Silver Reed, a new owner reported that the ribbon became increasingly loose and snagged after several keystrokes. In another discussion about bunching, changing an incorrect spool orientation resolved the problem. Those examples are useful clues, not proof that every typewriter has the same fault.
Seven checks, from simplest to more serious
1. Check which spool is taking up the ribbon
Open the cover only as your manual allows. Take a clear photograph of the ribbon route. With paper inserted, perform a few normal keystrokes and observe the spools from a safe position. Does the ribbon travel towards one spool, or does it gather beside the printing point? Do not touch moving typebars while testing.
If the ribbon keeps coming off the supply spool but is not winding onto the other, stop and check the installation. Our separate guide to changing a typewriter ribbon explains the basic parts.
2. Check whether the ribbon leaves each spool from the correct side
This is one of the easiest mistakes to make. Some machines require ribbon to leave the front of a spool; others use a different route. If installed backwards, the driven spool may fail to pull the ribbon along the intended path.
Do not rely on a blanket “clockwise” rule. Compare the setup with the instruction manual for your exact model. The Royal KMM manual, for example, provides model-specific ribbon illustrations; it should not be treated as the diagram for every typewriter.
3. Make sure the ribbon is flat through the vibrator
The ribbon vibrator is the small moving holder at the printing point. A ribbon threaded outside one of its narrow retaining points can fold, snag, or spring out when the keys strike. Follow the precise route shown for your model, including the small guides near the spools.
Look for twists and folded edges. If you cannot see the route clearly, stop rather than pushing the ribbon through a narrow gap with a tool. A close-up photograph of the original installation can help.
4. Confirm that the take-up spool has the ribbon end attached
On twin-spool systems, the free end must be secured to the receiving spool in the way intended by the manufacturer. If it slips free, the drive can turn while the ribbon accumulates elsewhere. Inspect the attachment point with the machine switched off; do not pull the ribbon taut against resistance.
If the ribbon end or spool attachment is damaged, obtain model-specific guidance before attempting a repair. Do not improvise glue, tape, or knots where they might jam the mechanism.
5. Check that the spools fit and turn freely
Two spools that look similar may have different centre holes, drive notches, or retaining arrangements. A spool can appear seated but rub against a clip or fail to engage the drive. That can cause bunching or increasing ribbon tension.
Keep your original metal or unusual spools. In a community troubleshooting case involving an Olympiette, the owner ultimately traced excessive tension to spools that were not seated correctly.
If a new spool does not fit, do not force it. For a confirmed compatible ribbon, transferring ribbon material onto the original spools may be an option, but only with the correct attachment and reversing arrangement.
6. Check the ribbon-reversal system, without forcing it
Many typewriters reverse ribbon travel near the end of a spool. Some use metal eyelets and a reversing fork; others use a manual lever or a mechanism triggered by ribbon tension or spool position. A machine that fails to reverse may continue trying to feed ribbon in the wrong direction, creating slack or a jam.
Check your manual to see which system your machine uses. Do not pull a metal eyelet through the narrow vibrator or try to force a stuck reversing control. The Royal service manual shows that automatic reversal can involve several interacting parts—beyond a beginner’s adjustment.
7. Look for damage or a mechanism that does not engage
If the correct ribbon is installed and threaded properly but the take-up spool never turns, the fault may be in the spool drive or related mechanism. Also look for a visibly bent spool flange, a broken retaining piece, or ribbon that has torn and wound around a post.
Do not dismantle the ribbon drive or adjust springs based on generic internet advice. Note the exact symptom, take photographs, and ask a typewriter technician or knowledgeable supplier to assess the machine.
A simple test after correcting the problem
- With the machine off, confirm that the ribbon lies flat and the spools are seated as the manual shows.
- Remove only obvious loose loops by gently turning the correct take-up spool if the manual permits it.
- Close the cover if required, insert paper, and type a short line.
- Check that the ribbon advances and collects on the take-up spool without a growing loop.
- Stop immediately if it begins folding, pulling tight, or slipping out again.
Frequently asked questions
Why is only one ribbon spool turning?
That is often normal. On many machines, only the take-up spool is driven; the supply spool turns as ribbon is drawn off it. The concern is whether ribbon is actually being collected rather than piling up.
Can I just tighten the ribbon by hand?
You may be able to remove a little slack using the take-up spool, as your manual directs. But tightening alone will not fix backwards threading, a poor-fitting spool, or a failed drive. Never pull the ribbon hard.
Should I buy a new ribbon if mine keeps tangling?
Not automatically. First check the make and model, ribbon path, spool seating, and feed direction. A torn or badly creased ribbon may need replacing, but a new ribbon will tangle too if the installation is wrong.
Does this apply to electronic typewriters?
Not always. Many electronic typewriters use ribbon cassettes or film ribbons rather than exposed twin spools. Follow the model’s cassette instructions and switch off before replacing it.
Still getting a tangled ribbon?
InkSmart can help identify the ribbon suitable for your particular machine. Send the make, model, and a clear top-view photograph showing both spools and the ribbon path. That is much more useful than guessing from spool size alone.