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#1
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Help with Oki C7400
I've just acquired a used OKI C7400 colour laser printer and I'm still finding my way around the printer and I have a couple of questions. I can't figure out how you get the paper to exit into the rear paper tray. Simply opening the back tray and extending the guides doesn't seem to affect the paper path and it still exits on top of the printer. When I look into the back of the printer with the back tray open there appears to be a spring loaded guide where I would expect the paper to exit from which still deflects the paper upwards to the top of the machine. I also have a query with respect to paper source. If I open the front multipurpose tray and load some paper and if I select in the printer settings "Auto Select Tray" it still picks from the main tray 1. I have to select "Multipurpose Tray" in the printer settings to get it to pick from this tray. Any ideas? This is my first printer with separate toner carts and drums so this is all a bit new to me. There is a message on the screen saying "magenta toner low". I have a spare magenta toner cartridge so this isn't a problem as such. I plan to wait until it actually tells me to change it or the print quality degrades beyond an acceptable level. What worries me is what if I replace the toner and then I'm told the drum needs replacing. The manual says that when I replace the drum I have to fit a new toner cartridge. So in theory I could fit a new toner cartridge this week and then have to replace the drum and fit another new cartridge next week - a total of £490 inc. vat at DAB's prices. Or doesn't it work like that? When I did my first test prints with some text and a small photo I was delighted with the quality. Black text was nice and sharp and the colour photo was superb. I have since tried a few full page photos and there are obvious defects evident. The most noticeable being a yellowish tinge to the photo with perhaps a 2" band running top to bottom of what I would think would be the correct colour (ie no tinge). In the band of good colour there is a single yellow line running top to bottom - even in the region outside of the photo which should be plain white. Would the "low" magenta toner cause this yellow tinge (in an area of blue sky) or is it something more serious? Would the yellow line on the pintouts mean the yellow drum is damaged? Or could the yellow drum be responsible for the yellow tinge as well? An help at all would be much appreciated. Thanks John --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.509 / Virus Database: 306 - Release Date: 12-Aug-03 |
#2
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Further to my first posting I've had the message "Magenta toner empty" so I
had to fit the new one but it didn't make any difference to the problems I mentioned. As a test I printed 4 test pages each with 10% tint of c, m,y & k and sure enough they all looked normal except the yellow page which had an almost white 2" stripe running top to bottom. I suspect the toner is low even though I'm not getting any error messages on the LCD screen. Had this been my old black & white laserjet I would have taken the toner cartridge out and given it a shake and it would probably be ok for a bit longer. Can you do the same with this printer? Would I need to take both the toner and the drum out and shake them individually? Does anyone know where I can get cheap consumables for this printer? (In the UK) Thanks again John --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.509 / Virus Database: 306 - Release Date: 12-Aug-03 |
#3
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I have had an OKI C7400 for over a year. I always push my supplies to
the limits. When I am told that the toner is empty, I take it out and shake it from left to right the put it back in. That will usually give me many more prints. My machine has been telling me to get new drums for Cyan, Magenta and Yellow for more then two months and at least 2000 to 3000 prints. When it refuses to print, I open and close the top, it recycles itself, then continues to print. I have seen no loss of quality so far, and I print full color business cards on my printer. As some point, the printer may stop printing or the quality may go down, but until then, I am going to get every print possible out of my supplies. Good luck, and hello from Oregon. "nodge" wrote in message ... I've just acquired a used OKI C7400 colour laser printer and I'm still finding my way around the printer and I have a couple of questions. I can't figure out how you get the paper to exit into the rear paper tray. Simply opening the back tray and extending the guides doesn't seem to affect the paper path and it still exits on top of the printer. When I look into the back of the printer with the back tray open there appears to be a spring loaded guide where I would expect the paper to exit from which still deflects the paper upwards to the top of the machine. I also have a query with respect to paper source. If I open the front multipurpose tray and load some paper and if I select in the printer settings "Auto Select Tray" it still picks from the main tray 1. I have to select "Multipurpose Tray" in the printer settings to get it to pick from this tray. Any ideas? This is my first printer with separate toner carts and drums so this is all a bit new to me. There is a message on the screen saying "magenta toner low". I have a spare magenta toner cartridge so this isn't a problem as such. I plan to wait until it actually tells me to change it or the print quality degrades beyond an acceptable level. What worries me is what if I replace the toner and then I'm told the drum needs replacing. The manual says that when I replace the drum I have to fit a new toner cartridge. So in theory I could fit a new toner cartridge this week and then have to replace the drum and fit another new cartridge next week - a total of £490 inc. vat at DAB's prices. Or doesn't it work like that? When I did my first test prints with some text and a small photo I was delighted with the quality. Black text was nice and sharp and the colour photo was superb. I have since tried a few full page photos and there are obvious defects evident. The most noticeable being a yellowish tinge to the photo with perhaps a 2" band running top to bottom of what I would think would be the correct colour (ie no tinge). In the band of good colour there is a single yellow line running top to bottom - even in the region outside of the photo which should be plain white. Would the "low" magenta toner cause this yellow tinge (in an area of blue sky) or is it something more serious? Would the yellow line on the pintouts mean the yellow drum is damaged? Or could the yellow drum be responsible for the yellow tinge as well? An help at all would be much appreciated. Thanks John --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.509 / Virus Database: 306 - Release Date: 12-Aug-03 |
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