First, of great importance when restoring these vintage typewriters is the attention to the two aging/failed RIFA metallized paper Class-Y safety capacitors that are located just before the power supply board. Every vintage electronic from this era MUST have these replaced, as they all have signs of thermal abuse and cracking by now. Many of them have already experienced catastrophic failure. Not replacing these can cause errors or malfunctioning to any circuits containing RAM/memory, processors, and microcontrollers since the purpose of these caps (other than being safety devices) is to filter out EMI/RF line noise, something electronic components inside the APM 350 is sensitive to.
Since Class-Y safety capacitors connect between AC line and the chassis, they can pose as a shock hazard if they fail towards a short-circuit. The old RIFA Class-Y safety caps all pose this risk and must be replaced! These original caps were replaced with new production Class-Y RIFA caps. All 11 electrolytic capacitors in this AP350 have been replaced with more reliable caps. We find that several of the factory caps in these old typewriters are commonly out of spec.Failing to replace all electrolytic capacitors results in general errors and also malfunction of the solenoid (as can bad Class-Y caps be responsible as explained above). In addition to the above Class-Y caps replacement, it is crucial to perform a full electrolytic recap on a vintage Canon AP typewriters to prevent sluggish performance and potential damage to the circuits. Most sellers do not perform this work because of the cost and time required.
Total disassembly and removal is required to replace the caps on the keyboard PC board - this involves a large and clean work area and lots of patience. The main board and power supply boards also have to be removed for access. During the process, all solder joints of all boards were inspected under magnified light and touched up where necessary. All other main components were tested/measured to ensure correct operation. After recapping the boards, the response and action of the processing and solenoid is very snappy and healthy!
All old grease was removed from gears, shafts, and rails. New lithium grease was applied where necessary. The platen (black rubber roller) is in great shape and has been cleaned. It still has a lot of life. The dry-rotted/deteriorated acoustic shield foam has been replaced with new foam.Acoustic foam beneath the upper chassis has been removed and replaced with new foam. The dry-rotted/deteriorated original thin foam black tape bumper strip on the top of the upper chassis was removed. A custom, laser-cut black felt strip was created in-house and looks great! It helps cushion the top plastic shield and helps reduce noise. The original 3v Lithium-manganese memory battery was dead as expected. It was replaced with a fresh one from a lot that was manufactured Q1 of 2022.
These batteries are worth the higher price since they are engineered to last 10 years. All vintage typewriters need to have a fresh battery installed prior to sale.
The daisy printwheel is brand new and installed! The font is Courier 10, a favorite standard choice. Included and installed is a new Canon AP11 black ribbon and 1 new, unopened ribbon.The power cord is the original one - it is just shy of 10ft and has the right-angle IEC connector! Also included is the original anti-glare shield. Our guess is that it is often removed and becomes lost. The one we are included has two tabs (one on each end), but the one on the left side was broken off - we will provide you with the tab. It could be glued back with the proper adhesive/epoxy, but it's not really necessary since it stays on the typewriter pretty well. We tried using a 2-part epoxy and also CA glue (Super Glue), but neither worked well for this kind of plastic - it snapped back off with some pressure. You could melt the surfaces together or try a different, more compatible adhesive. The LCD screen has some darkening on the right end/corners, something that is common with some old LCD's. We looked into replacing it, but we couldn't locate the original part, and it would have been expensive to replace if we could find it. Fortunately, the current display still works really well, and the darkening is only on that one end and corners, and it doesn't prevent you from reading text on the screen.
It gives the typewriter some inspiring character. All mechanical and electrical connections were checked/cleaned.
Keys have all been cleaned, and the whole unit has been blown clean with compressed air, and deep cleaning was done with swabs and alcohol where necessary. Correction tape function has been verified to work and significantly lightens mistakes. You'll need to set your margins when you receive the typewriter. We've set it up for the daisywheel and installed a new ribbon to test all functions.
You will not find a more reliable restored electronic typewriter for this price! In many cases, the only alternative suitable replacement is a more expensive capacitor (this resulted in higher quality caps being used).
In the last image, we show a sample of the quality of typing using the Courier 10 daisy printwheel and 4 sheets of 20lb copy paper as backing paper. We used the Impression Selector on setting IV. You can likely get better results with a rubber backing paper and some experimentaion with different ribbons.
As expected with vintage and aging platen's, the rubber coating does slightly harden and shrink over time resulting in an altered curvature. This can be evidenced by slight fading on the lower edge of some lowercase characters.
This item is in the category "Business & Industrial\Office\Office Equipment\Typewriters & Word Processors". The seller is "tiabella77" and is located in this country: US. This item can be shipped to United States.