This is a technical information sheet about the parallel fine black bar fault of Sharp copier SF-1116 SF-1020
The document reports that copies from the SF-1116 and SF-1020 may show irregular fine black lines parallel to the paper feed direction, which increase with copy count and can be accompanied by abnormal friction noise. The analysis points to a too‑small gap between the waste‑toner recovery seal plate and the photoconductor drum, causing the black plastic piece on the seal plate to rub the drum.
The market response advises technicians to remove the drum assembly on new installations, verify that the black plastic piece on the seal plate is parallel to the mounting bracket, replace the seal plate if misaligned, and clean the drum and waste‑toner seal plate when the defect appears. A seal plate part (CSHEZ4602FC01) is supplied to service centers, and completed service reports should be returned to SOCC Shanghai for replacement parts. This manual is written in Chinese.
| Affected Models | SF-1116, SF-1020 |
|---|---|
| Part Number (Seal Plate) | CSHEZ4602FC01 |
Fine irregular black lines appear parallel to the paper feed direction and increase with copy count, sometimes with abnormal friction noise.
Remove the drum assembly, ensure the black plastic piece on the waste‑toner seal plate is parallel to the mounting bracket, replace the seal plate if misaligned, clean the drum and seal plate, and replace the drum if needed.
SOCC will ship a seal plate to authorized service centers; after replacement, return the old part and a completed market intelligence form to SOCC Shanghai.
Call 021‑58345070 or fax 021‑58345270.