I always wondered what the dot in the corner of the phillips head screws in Ricoh machines meant. I did some research on it and found that the dot denotes a JIS screw.

Using a normal phillips head driver on a JIS screw will strip the head. Some brands of tools are worse than others. At our company we've found that a #2 phillips drywall bit works better than a regular phillips. It seems to be due to the grooves machined into the angles of the head which grip better.
You may have trouble finding a JIS screwdriver. Moody tools is the only English language site that I have found that advertises their screwdrivers as specifically designed for JIS. There are many RC hobby websites that say that they sell JIS drivers, but these seem to be found as compatible by trial and error, in which case a drywall bit seems to be just as good.
You might say this can all be avoided by using a 5.5mm socket, but there are screws, especially on fusers, that this won't work for. Also finding a 5.5mm socket on a 1/4 hex shank for power drivers is well nigh impossible.
Anyone else have experience with JIS screwdrivers, or know a high quality site that sells a specifically JIS bit?

Using a normal phillips head driver on a JIS screw will strip the head. Some brands of tools are worse than others. At our company we've found that a #2 phillips drywall bit works better than a regular phillips. It seems to be due to the grooves machined into the angles of the head which grip better.
You may have trouble finding a JIS screwdriver. Moody tools is the only English language site that I have found that advertises their screwdrivers as specifically designed for JIS. There are many RC hobby websites that say that they sell JIS drivers, but these seem to be found as compatible by trial and error, in which case a drywall bit seems to be just as good.
You might say this can all be avoided by using a 5.5mm socket, but there are screws, especially on fusers, that this won't work for. Also finding a 5.5mm socket on a 1/4 hex shank for power drivers is well nigh impossible.
Anyone else have experience with JIS screwdrivers, or know a high quality site that sells a specifically JIS bit?
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