Ricoh mp 501 low print quality on solids

[omorales]

Hi friends, I'd like to know if there's any way to improve the MP501's quality on solid paper.
It has a new imaging unit, the development unit is fine, and I don't have any other equipment for testing.
Additional toner was added and the drum was shaken.
The charge was adjusted, but the quality did not improve.
The toner density was increased by 2 points.
None of this improved the quality, especially on solid paper.
NOTE: The character print is correct.

[luca72]

Hi friends, I'd like to know if there's any way to improve the MP501's quality on solid paper.
It has a new imaging unit, the development unit is fine, and I don't have any other equipment for testing.
Additional toner was added and the drum was shaken.
The charge was adjusted, but the quality did not improve.
The toner density was increased by 2 points.
None of this improved the quality, especially on solid paper.
NOTE: The character print is correct.

try cleaning the laser, and its various glasses
if it does it again I would try another development unit

[MIGUELMARCHENA]

try cleaning the laser, and its various glasses
if it does it again I would try another development unit

Lower the development unit and disassemble it, discard any toner inside, and thoroughly clean the magnetic roller.
Assemble and add original toner.
While removing the charge roller, clean or wash it. Disassemble the imaging unit and vacuum out all the toner inside.

How many copies does the machine have? It could also be a cylinder that's about to die.

[omorales]

Scan attached.
Finished cleaning the laser, replaced the fuser.
Has a new imaging unit.
Cleaned the development unit.
Removed the toner from the development unit, installed a new one.
Doesn't seem to be getting better.

[luca72]

Scan attached.
Finished cleaning the laser, replaced the fuser.
Has a new imaging unit.
Cleaned the development unit.
Removed the toner from the development unit, installed a new one.
Doesn't seem to be getting better.

nothing remains but the transfer roller