Brother International HL 1850 Service Manual - Page 263

APPENDIX APPENDIX 16. PRINT SPEEDS WITH VARIOUS SETTINGS Print speed of the HL-1850/1870N printers is up to 18/19 ppm when loading A4 or Letter size paper from the paper cassette in the Regular mode. Actual print speed varies depending on the media type or paper size as shown in the tables below; Media type setting Transparency Thin Paper Plain paper Thick Paper Thicker/Bond Paper All models Up to 18/19 ppm Up to 18/19 ppm Up to 18/19 ppm Up to 18/19 ppm A4: 4 ppm / Letter: 4 ppm Media type setting All models Transparency Up to 18/19 ppm Thin Paper Up to 18/19 ppm Plain paper 8 ppm after 5 min. have passed. Thick Paper 8 ppm after 30 sec. have passed. Thicker/Bond Paper 4 ppm NOTE: • When a smaller size paper than A4 or Letter is printed, the temperature on both edges of the fixing unit is much higher than the temperature on the center of the unit where the paper is fed depending on the setting or model, Therefore, the print speed is slowed in order to decrease the temperature on the edges after the specified time, it is maximum print speed when you first start printing. • Max, speed is 18/19 ppm or more. It varies depending on the paper size. A-17