Brother Laserprinter Hl 1270n User Guide
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CHAPTER 4 TROUBLESHOOTING 4-15 Other Problem Recommendation The printer cannot print. “There was an error writing to LPT1: (or BRUSB) for the printer.” error message appears on your PC.· Check that the printer cable is not damaged or broken. · If you have an interface switching device, make sure the correct printer is selected. For DOS users Problem Recommendation Unable to print from application software.· Check that the DOS application software interface settings match that of your printer : for example, if you are using a parallel printer cable, you would most likely set your DOS software printer port to LPT1. · Check if the printer has any printer alarms. ·Check if the appropriate printer is selected in your application software.
4-16 Unable to print from For iMac and Power Macintosh G3 with USB This printer does not appear in Unable to print from
CHAPTER 4 TROUBLESHOOTING 4-17 Improving the print quality ! Caution If the Drum LED is lit you can clear a print quality problem by replacing the drum unit with a new one. The Drum LED indicates that the drum unit is at the end of life. This section provides information on the following topics: Image defect examples Recommendation ABCDEFGH abcdefghijk ABCD abcde 01234 CDEF d efg BC b cd 23 Faint · Check the printers environment. Conditions such as high humidity, high temperatures, etc. may cause this print defect to occur. · If the whole page is too light, toner save mode may be on. Disable toner save mode within the Printer Properties tab of the Driver. · Try installing a new toner cartridge. See “How to replace the Toner cartridge” in Chapter 3. · Try installing a new drum unit. See How to replace the Drum unit in Chapter 3. ABCDEFGH abcdefghijk ABCD abcde 01234 Gray background · Make sure that you use paper that meets the Brother recommended specifications. See “What kind of paper can I use” in Chapter 1. ·Check the printers environment; high temperature and high humidity conditions can increase the amount of background shading. · Installing a new toner cartridge. See How to replace the Toner cartridge in Chapter 3. · Installing a new drum unit. See How to replace the Drum unit in Chapter 3. Ghost · Make sure that you use paper that meets the specifications. A rough surfaced paper, paper that has absorbed moisture or thick media can cause the problem. · Make sure that you select the appropriate media type in the printer driver. See “What kind of paper can I use” in Chapter 1. · Try installing a new drum unit. See “How to replace the Drum unit” in Chapter 3.
4-18 Image defect examples Recommendation ABCDEFGH abcdefghijk ABCD abcde 01234 Toner specks · Make sure that you use paper that meets the specifications. A rough surfaced paper may cause the problem. See “What kind of paper can I use” in Chapter 1. · The drum unit may be damaged. Install a new drum unit. See How to replace the Drum unit in Chapter 3. Hollow print · Make sure you use paper that meets the specifications. See “What kind of paper can I use” in Chapter 1. · Select the ‘Thick paper mode’ in the printer driver, or use thinner paper than you are currently using. · Check the printer’s environment as conditions such as high humidity may cause this situation to occur. All black · Clean the primary corona wire of the drum unit. See How to clean the printer interior and Drum unit in Chapter 3. · The drum unit may be damaged. Install a new drum unit. See How to replace the Drum unit in Chapter 3.
CHAPTER 4 TROUBLESHOOTING 4-19 Image defect examples Recommendation 94 mm (3.7 in.) 94 mm (3.7 in.) White Spots Printed pages have white spots in black text and graphics at intervals of 94 mm. 94 mm (3.7 in.) 94 mm (3.7 in.) Black Spots Printed pages have black spots at intervals of 94 mm. · If the problem is not solved after printing a few pages, the drum unit may have glue from label stock on the OPC drum surface. Clean the drum unit as follows 1. Position the print sample in front of the drum unit, and find the exact position of the image defect. Fig.4-11 Find the exact position of the image defect 2. Turn the drum unit gear by hand while looking at the surface of the OPC drum. Fig. 4-12 Turn the drum gear 3. When you have located the mark on the drum that matches the print sample, wipe the surface of the OPC drum with a cotton swab until the dust or paper powder on the surface comes off. Fig. 4-13 Wipe the surface of the OPC drum
4-20 Image defect examples Recommendation 94 mm (3.7 in.) 94 mm (3.7 in.) White Spots Printed pages have white spots in black text and graphics at intervals of 94 mm. 94 mm (3.7 in.) 94 mm (3.7 in.) Printed pages have black spots at intervals of 94 mm. !Caution Do not try to clean the surface of the photosensitive drum with anything sharp such as a ball-point pen etc. · · · · The drum unit may be damaged. Install a new drum unit. See “How to replace the Drum unit” in Chapter 3.
CHAPTER 4 TROUBLESHOOTING 4-21 Image defect examples Recommendation ABCDEFGH abcdefghijk ABCD abcde 01234 Black Horizontal repetitive defects Toner scatters and stains the printed page. · The drum unit may be damaged. Install a new drum unit. See How to replace the Drum unit in Chapter 3. · Make sure you use paper that meets specifications. See “What kind of paper can I use” in Chapter 1. 2 Note · If you use label sheets for laser printers, the glue from the sheets may sometimes stick to the OPC drum surface. Clean the drum unit. See the previous page. · Do not use paper that has paper clips or staples because they will scratch the surface of the drum. · If the unpacked drum unit is subjected to excessive direct sunlight or room light, the unit may be damaged. ABCDEFGH abcdefghijk ABCD abcde 01234 White horizontal stripes · Make sure you use paper that meets the specifications. A rough surfaced paper or thick media can cause the problem. · Make sure you select the appropriate media type in the printer driver. · The problem may disappear by itself. Try printing multiple pages to clear this problem, especially if the printer has not been used for a long time. · The drum unit may be damaged. Install a new drum unit. See How to replace the Drum unit in Chapter 3. ABCDEFGH abcdefghijk ABCD abcde 01234 Horizontal Lines · Clean the printer interior and the primary corona wire in the drum unit. See How to clean the printer in Chapter 3. · The drum unit may be damaged. Install a new drum unit. See How to replace the Drum unit in Chapter 3. ABCDEFGH abcdefghijk ABCD abcde 01234 Black Vertical lines Printed pages are stained with toner or have vertical stripes. · Clean the primary corona wire of the drum unit. See How to clean the printer interior and Drum unit in Chapter 3. · Make sure that the primary corona wire cleaner is at the home position. · The drum unit may be damaged. Install a new drum unit. See How to replace the Drum unit in Chapter 3. · The toner cartridge may be damaged. Install a new toner cartridge. See How to replace the Toner cartridge in Chapter 3. Make sure that a torn piece of paper is not covering the scanner window inside the printer. · The fixing unit may be smudged. Call Customer Support.
4-22 . ABCDEFGH White Vertical streaks ABCDEFGH Page skew Curl or wave BDEFGH Wrinkles or creases
CHAPTER 4 TROUBLESHOOTING 4-23 How to print correctly Problem Recommendation The printer prints unexpectedly or it prints garbage data.· Make sure the printer cable is not too long. We recommend using a parallel cable of less than 2 metres (6.6 feet) in length. · Check if the printer cable is damaged or broken. · If you are using an interface switching device, remove it and connect your computer directly to your printer, then try again. · Check that the appropriate printer driver is selected for ‘Set as Default’. · Check that the printer is not connected to the same port that is also connected to a mass storage device or scanner. Remove all other devices and connect the port to the printer only. Turn off printer status reporting in the device options tab in the printer driver. The printer cannot print full pages of a document. An error message “PRINT OVERRUN” occurs.· Press the panel button to print the data remaining in the printer. · If this does not clear the error, reduce the complexity of your document or reduce the print resolution. · Expand the printer memory by adding a commercially available SIMM. See “How to add extra Memory” in Chapter 2. Set page protection to ON by using the supplied Windows driver or RPC program. · Change the following settings in the supplied Windows driver and try again. The best combination of settings below will vary depending on your document. Graphics Mode True Type TM mode Use Printer True TypeTM Fonts The printer cannot print full pages of a document. A MEMORY FULL error message occurs.· Press the panel button to print the data remaining in the printer. · Reduce the print resolution or reduce the complexity of your document. · Expand the printer memory by adding a commercially available SIMM. See “How to add extra Memory” in Chapter 2. My headers or footers appear when I view my document on screen but do not show up when I print them.· Most laser printers have a restricted area that cannot be printed on. Usually the first two lines and the last two lines of a page cannot have print (leaving 62 printable lines). Adjust the top and bottom margins in your document to allow for this.